Author: claimsbot

1. A swiveling work machine comprising:
a swivel deck mounted to be pivotable about a vertical axis; and
a side cover for covering one lateral side on the swivel deck, an accommodating space capable of accommodating a work machine accessory being provided inside said lateral cover;
wherein said accommodating space accommodates, as said implement accessory, a work oil tank, a fuel tank and a control valve unit; and
said work oil tank is disposed at a fore-and-aft intermediate portion on one lateral side on said swivel deck, said fuel tank is disposed forwardly of said work oil tank forming a gap relative thereto, and said control valve unit is disposed upwardly of said fuel tank and longitudinally along the foreaft direction.
2. The swiveling work machine according to claim 1, wherein said gap accommodates a battery therein, and said control valve unit is disposed upwardly of the battery and the fuel tank.
3. The swiveling work machine according to claim 2, wherein said battery and said control valve unit are supported to a support frame fixed to said swivel deck, and
wherein said support frame includes a pair of stays disposed erect on an upper face of the swivel deck at positions forwardly and rearwardly of the battery, a first plate mounted between vertical intermediate portions of the pair of stays and mounting the battery thereon, and a second plate connected to upper ends of the pair of stays and mounting the control valve unit thereon.
4. The swiveling work machine according to claim 3, wherein a front portion of the second plate extends to a position upwardly of the fuel tank.
5. The swiveling work machine according to claim 2, wherein at least one of a front lower portion of the work oil tank and a rear portion of the fuel tank extends into a portion of said gap on an inner side of the swivel deck relative to the battery.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A large scale energy storage system enabling balanced control of inverters, the large scale energy storage system comprising:
an inverter controller comprising a PWM generation circuit configured to generate a reference PWM signal and a first OE converter configured to convert the reference PWM signal transmitted from the PWM generation circuit into an optical signal and to output the optical signal; and
a plurality of PCS inverters configured to output a grid voltage, each of the PCS inverters comprising a second OE converter embedded therein to convert the PWM signal and the optical signal output from the inverter controller into an optical signal and a plurality of inverter modules.
2. The large scale energy storage system enabling the balanced control of the inverters of claim 1, wherein the PWM generation circuit is provided with an inverter reference output current applied from an external device and the output current and voltage output from each of the PCS inverters, and compensates an error between the reference output current and the output current and voltage and generates the reference PWM signal.
3. The scale energy storage system enabling the balanced control of the inverters of claim 1, wherein the inverter module comprises,
a PWM compensation circuit configured to calculate a phase and frequency of a grid and to output the PWM signal synchronized with the grid;
an inverter comprising a switching element configured to switch a supplied DC power into an AC power;
a reactor configured to suppress a harmonic wave from being output to a power supply by restricting the output current of the inverter;
a current deviation detector configured to measure a grid voltage with each phase, entire currents flowing the grid and a grid current for each of the inverters, the current deviation detector comprising a filter connected in serial to filter the noise generated from the power supply or the inverter; and
a PWM calculator configured to calculate a deviation of the entire currents based on the information detected by the current deviation detector and to supply the calculated deviation to the PWM compensation circuit.
4. The scale energy storage system enabling the balanced control of the inverters of claim 3, wherein the PWM compensation circuit compensates current imbalance between the inverter modules and a low frequency circulating current which are caused by property variation or temperature variation of the inverter, the reactor and the filter.
5. The scale energy storage system enabling the balanced control of the inverters of claim 4, wherein the PWM compensation circuit generates and supplies a compensated PWM signal, having a compensated width and a compensated phase of a pulse corresponding to the deviation, to the inverter, after measuring entire grid currents of each phase and a grid current of the inverter module and calculating a deviation for the entire grid currents.

1. A bearing assembly comprising:
a bearing housing having an axial centerline and an inner wall; and
an outer bearing race having an axial centerline and an outer surface, wherein a portion of the outer surface of the outer bearing race contacts the inner wall of the bearing housing, and displacement of the axial centerline of the outer race with respect to the axial centerline of the bearing housing causes rotational displacement and axial displacement of the outer surface of the outer bearing race with respect to the inner wall of the bearing housing.
2. The bearing assembly of claim 1, wherein at least a portion of the inner wall of the bearing housing contacting the outer surface of the outer bearing race is cylindrical.
3. The bearing assembly of claim 1, wherein the inner wall of the bearing housing is integrally formed with the bearing housing.
4. The bearing assembly of claim 1, wherein the outer wall of the bearing housing comprises a sleeve inserted in the bearing housing.
5. The bearing assembly of claim 1, wherein the outer surface of the outer bearing race is spherical and has a center on the axial centerline of the outer race.
6. The bearing assembly of claim 5, wherein the spherical surface of the outer bearing race has a radius of curvature that is greater than an outer radius of the outer bearing race.
7. The bearing assembly of claim 1, wherein the displacement of the axial centerline of the outer bearing race with respect to the axial centerline of the bearing housing causes a different portion of the outer surface of the outer bearing race to contact the inner wall of the bearing housing.
8. The bearing assembly of claim 1, wherein the displacement of the axial center of the outer bearing race with respect to the axial center of the bearing housing causes a different portion of the inner surface of the bearing housing to contact the outer surface of the outer bearing race.
9. The bearing assembly of claim 1, further comprising an upper thrust ring contacting an upper surface of the outer bearing race, and a lower thrust ring contacting a lower surface of the outer bearing race.
10. The bearing assembly of claim 9, wherein the upper and lower thrust rings are radially displaceable with respect to the axial centerline of the bearing housing.
11. The bearing assembly of claim 10, wherein the radial displacements of the upper and lower thrust rings are in opposite radial directions.
12. The bearing assembly of claim 9, wherein the upper andor lower surfaces of the outer bearing race are spherically curved along a longitudinal section of the outer bearing race.
13. The bearing assembly of claim 12, wherein the spherically curved upper and lower surfaces of the outer bearing race have substantially the same radius of curvature.
14. The bearing assembly of claim 12, wherein the outer surface of the outer bearing race is spherically curved along a longitudinal section of the outer bearing race.
15. The bearing assembly of claim 14, wherein the radius of curvature of the outer surface of the outer bearing race defines a sphere with a plane of symmetry contacting the inner surface of the bearing housing.
16. The bearing assembly of claim 14, wherein the spherically curved outer surface of the outer bearing race has a radius of curvature less than a radius of curvature of the curved upper or lower surfaces of the outer bearing race.
17. The bearing assembly of claim 16, wherein the radii of curvature of each of the curved upper and lower surfaces of the outer bearing race are from about 1.05 to about 3.5 times greater than the radius of curvature of the curved outer surface of the outer bearing race.
18. The bearing assembly of claim 12, wherein the upper and lower thrust rings have surfaces contacting the outer bearing race which are curved along a longitudinal section of the thrust rings.
19. The bearing assembly of claim 9, wherein the upper thrust ring has a conical surface contacting the upper surface of the outer bearing race, and the lower thrust ring has a conical surface contacting the lower surface of the outer bearing race.
20. The bearing assembly of claim 9, wherein the bearing housing comprises a lower retaining rim, and the lower thrust ring is radially slidable in the housing against the lower retaining rim.
21. The bearing assembly of claim 9, further comprising an upper retaining ring installed in the bearing housing, wherein the upper thrust ring is radially slidable in the housing against the upper retaining ring.
22. The bearing assembly of claim 1, further comprising at least one pin extending radially inward from the inner wall of the bearing housing and contacting the outer bearing race, wherein the pin prevents the outer bearing race from rotating around its axial centerline within the bearing housing.
23. The bearing assembly of claim 22, wherein the pin is slidably engaged in a groove in the outer race which is substantially parallel with the axial centerline of the outer race.
24. The bearing assembly of claim 22, wherein the pin includes a lubricant port extending therethrough.
25. The bearing assembly of claim 1, further comprising an inner bearing race disposed radially inside the outer bearing race.
26. The bearing assembly of claim 25, wherein each of the inner and outer bearing races comprise at least one oppositely disposed bearing channel.
27. The bearing assembly of claim 26, wherein the at least one bearing channel is structured and arranged to receive ball bearings.
28. The bearing assembly of claim 26, wherein the at least one bearing channel is structured and arranged to receive roller bearings.
29. The bearing assembly of claim 25, wherein each of the inner and outer bearing races comprise at least two oppositely disposed bearing channels.
30. The bearing assembly of claim 29, wherein the oppositely disposed bearing channels are structured and arranged to receive ball bearings andor roller bearings.
31. The bearing assembly of claim 25, further comprising at least one lubricant port extending through the bearing housing and communicating with the outer bearing race and the inner bearing race.
32. The bearing assembly of claim 31, wherein the at least one lubricant port extends through a pin which prevents the outer bearing race from rotating around its axial centerline within the bearing housing.
33. The bearing assembly of claim 25, wherein the inner bearing race is structured and arranged for attachment to a rotatable shaft.
34. The bearing assembly of claim 33, wherein the inner bearing race is structured and arranged for attachment near a lower end of the rotatable shaft.
35. The bearing assembly of claim 33, wherein the rotatable shaft is a rotodome flight shaft.
36. A rotatable shaft and bearing assembly comprising:
a bearing housing;
an outer bearing race disposed in the bearing housing;
an inner bearing race disposed radially inside the outer bearing race; and
a rotatable shaft connected to the inner bearing race, wherein a radial load applied to the rotatable shaft causes axial displacement of the outer bearing race with respect to the bearing housing.
37. The rotatable shaft and bearing assembly of claim 36, wherein the axial displacement of the outer bearing race is in an opposite direction from a direction of an axial load applied to the rotatable shaft.
38. The rotatable shaft and bearing assembly of claim 36, wherein the inner race is attached near a lower end of the rotatable shaft.
39. The rotatable shaft and bearing assembly of claim 38, further comprising another bearing assembly attached to the rotatable shaft between the inner bearing race and an upper end of the rotatable shaft.
40. The rotatable shaft and bearing assembly of claim 36, wherein the rotatable shaft is a rotodome flight shaft.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A compound represented by the following Formula 1:
wherein
Ar1 is selected from the group consisting of hydrogen; deuterium; an alkyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; an alkoxy group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a carbazolyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a fluorenyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; an aryloxy group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; an arylthio group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; and an alkoxycarbonyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group,
when Ar1 is an aryl group, the aryl group is selected from the group consisting of a biphenyl group, terphenyl group, a naphthyl group, an anthracenyl group, a phenanthrene group, a pyrenyl group, a perylenyl group and a chrysenyl group,
Ar2 is selected from the group consisting of hydrogen; deuterium; an alkyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; an alkoxy group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a carbazolyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a fluorenyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; an aryloxy group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; an arylthio group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; and an alkoxycarbonyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group,
when Ar2 is an aryl group, the aryl group is selected from the group consisting of a phenyl group, a biphenyl group, terphenyl group, a naphthyl group, an anthracenyl group, a phenanthrene group, a pyrenyl group, a perylenyl group and a chrysenyl group,
L is a direct bond; an arylene group having 6 to 40 carbon atoms, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of nitro, nitrile, halogen, an alkyl group, and an alkoxy group; a divalent hetero ring group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of nitro, nitrile, halogen, an alkyl group, and an alkoxy group; or a fluorenylene group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of nitro, nitrile, halogen, an alkyl group, and an alkoxy group, except that L is a direct bond and both of Ar1 and Ar2 are a phenyl group having 6 carbon atoms or a tolyl group having 7 carbon atoms, and
Ar3 and Ar4 are the same as or different from each other and are each independently selected from the group consisting of hydrogen; deuterium; tritium; an alkenyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a carbazolyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; a fluorenyl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group; and nitrile group.
2. The compound according to claim 1, wherein Ar1 in Formula 1 is selected from the group consisting of an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; and a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group,
when Ar1 is an aryl group, the aryl group is selected from the group consisting of a biphenyl group, terphenyl group, a naphthyl group, an anthracenyl group, a phenanthrene group, a pyrenyl group, a perylenyl group and a chrysenyl group,
Ar2 in Formula 1 is selected from the group consisting of an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; and a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group, and
when Ar2 is an aryl group, the aryl group is selected from the group consisting of a phenyl group, a biphenyl group, terphenyl group, a naphthyl group, an anthracenyl group, a phenanthrene group, a pyrenyl group, a perylenyl group and a chrysenyl group.
3. The compound according to claim 1, wherein L in Formula 1 is a direct bond; or an arylene group having 6 to 40 carbon atoms, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of nitro, nitrile, halogen, an alkyl group, and an alkoxy group.
4. The compound according to claim 1, wherein Ar3 and Ar4 in Formula 1 are the same as or different from each other and are each independently selected from the group consisting of hydrogen; deuterium; an aryl group which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group and an acetylene group; and a hetero ring group comprising O, N or S as a heteroatom, which is unsubstituted or substituted by one or more substituent groups selected from the group consisting of a halogen group, an alkyl group, an alkenyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted arylalkenyl group, a substituted or unsubstituted hetero ring group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted fluorenyl group, a nitrile group, and an acetylene group.
5. The compound according to claim 1, wherein Formula 1 is represented by the following Formula 2 or 3:
wherein Ar1 to Ar3 are the same as those defined in Formula 1.
6. The compound according to claim 1, wherein the compound is one selected from the group consisting of the following formulas:
7. An organic light emitting device, comprising:
a first electrode;
a second electrode; and
an organic material layer having one or more layers disposed between the first electrode and the second electrode,
wherein one or more layers of the organic material layer comprises a compound of claim 1.
8. The organic light emitting device according to claim 7, wherein the organic material layer comprises a hole transporting layer, wherein the hole transporting layer comprises the compound represented by Formula 1.
9. The organic light emitting device according to claim 7, wherein the organic material layer comprises a hole injection layer, wherein the hole injection layer comprises the compound represented by Formula 1.
10. The organic light emitting device according to claim 7, wherein the organic material layer comprises a layer comprising hole injection and hole transportation simultaneously, wherein the layer comprises the compound represented by Formula 1.
11. The organic light emitting device according to claim 7, wherein the organic material layer comprises an electron injection layer and an electron transporting layer, wherein the electron injection layer and the electron transporting layer comprise the compound represented by Formula 1.
12. The organic light emitting device according to claim 7, wherein the organic material layer comprises a light emitting layer, wherein the light emitting layer comprises the compound represented by Formula 1.