1. A latch device that drives a latch actuator to bring a striker and a latch in a first engagement state to a second engagement state so that a door is maintained in a closed state, the door to which the latch device is provided, the latch device comprising a detecting unit configured to output a signal when the striker enters a groove in which the striker is fit, wherein
the latch actuator is actuated when the detecting unit outputs the signal while the striker and the latch are in the first engagement state.
2. A latch device that restricts an opening movement of a door when a latch operates to engage with a striker when a striker is positioned in an engagement groove of the latch, the engagement groove at which the striker is engaged with the latch, and that allows an opening movement of the door when the latch operates to release the striker to remove the striker from the engagement groove, the latch device comprising a detecting unit configured to output a signal when the striker is removed from the engagement groove.
3. The latch device according to claim 2, further comprising a receiving groove arranged in a many body of the latch device, and configured to guide the striker into to the engagement groove, wherein
the detecting unit includes
a lever member arranged at an opening end of the receiving groove, and configured to shift between a retreated position and an advanced position, wherein the lever member is positioned at the retreated position when the striker is positioned in the engagement groove, and is positioned at the advanced position when the striker is removed from the engagement groove and then from the receiving groove; and
a switch unit configured to perform a switching operation when the lever member that has been positioned at the advanced position shifts toward the retreated position.
4. A door openingclosing control device that drives a latch actuator to bring a striker and a latch in a first engagement state to a second engagement state so that a door is maintained in a closed state, the door to which the door openingclosing control device is provided, and that allows an opening movement of the door when the latch operates to release the striker to remove the striker from the engagement groove, the door openingclosing control device comprising a detecting unit configured to output a signal when the striker is removed from the engagement groove, wherein
the door openingclosing control device is configured to drive an open actuator to open the door when the detecting unit outputs the signal.
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. An electrical coil and cooling system combination, comprising:
an electrical coil;
a heat dissipation device comprising a fluid and a tempered reservoir for said fluid;
a thermal coupling that interacts with said electrical coil to place said fluid in thermal communication therewith to dissipate heat from said electrical coil; and
said fluid flowing through said coupling and having a critical point for a temperature of said fluid and a pressure of said fluid, and said reservoir being temperature-regulated to maintain said fluid in immediate proximity of said critical point.
2. A combination as claimed in claim 1 wherein said electrical coil comprises a conductor having a conductor configuration, and wherein said coupling comprises a heat conducting tube in which said fluid flows that passes through said conductor configuration.
3. A combination as claimed in claim 1 wherein said electrical coil comprises a hollow conductor, forming said coupling, in which said fluid flows.
4. A combination as claimed in claim 1 wherein said electrical coil comprises a conductor, and wherein said coupling comprises a heat-insulating tube having a hollow tube interior in which said fluid flows and through which said conductor proceeds.
5. A combination as claimed in claim 1 wherein said fluid is a fluid for which said critical point is approximately room temperature.
6. A combination as claimed in claim 5 wherein said fluid is a fluid selected from the group consisting of CO2 and C2F6.
7. A combination as claimed in claim 1 comprising a heat exchanger in thermal communication with said reservoir to maintain said reservoir in said immediate proximity of said critical point of said fluid.
8. A combination as claimed in claim 1 wherein said electrical coil has a coil configuration forming a transverse gradient coil for a magnetic resonance tomography apparatus.
9. A combination as claimed in claim 1 wherein said electrical coil has a coil configuration forming an axial gradient coil for a magnetic resonance tomography apparatus.
10. A combination as claimed in claim 1 wherein said electrical coil has a coil configuration forming a shim coil for a magnetic resonance tomography apparatus.
11. A magnetic resonance tomography apparatus comprising:
a magnetic resonance scanner adapted to interact with an examination subject to acquire magnetic resonance signals therefrom, said scanner comprising a magnet that generates a static basic magnetic field, at least one gradient coil that generates a gradient magnetic field, and shim iron that shims said static basic magnetic field;
a heat dissipation device comprising a fluid and a tempered reservoir for said fluid;
a coupling that thermally couples said fluid with at least one of said gradient coil and said shim iron; and
said fluid flowing through said coupling and having a critical point for a temperature of said fluid and a pressure of said fluid, and said reservoir being temperature-regulated to maintain said fluid in immediate proximity of said critical point.
12. A magnetic resonance tomography apparatus as claimed in claim 11 wherein said scanner has shim channels therein in which said shim iron is disposed, and wherein said coupling comprises a tube system in which said fluid flows, said tube system being in thermal communication with said shim channels.
13. A magnetic resonance tomography apparatus as claimed in claim 11 wherein said fluid is a fluid having said critical temperature at approximately room temperature.
14. A magnetic resonance tomography apparatus as claimed in claim 13 wherein said fluid is a fluid selected from the group consisting of CO2 and C2F6.
15. A magnetic resonance tomography apparatus as claimed in claim 11 comprising a heat exchanger in thermal communication with said reservoir to maintain said temperature and said pressure of said fluid in said immediate proximity of said critical point.