HEAT EXCHANGE DEVICE, COOLING DEVICE, AND PROJECTOR

• US 20160301902A1
• Filed: 04/07/2016
• Published: 10/13/2016
• Est. Priority Date: 04/08/2015
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Nakamura, Kentaro, Nagatani, Kaname
• Granted Patent: US 10,165,236 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F25B 21/02 using Peltier effect; using Nernst-Ettinghausen effect
• CPC Class Codes: F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies F28D17/00, F28D19/00, F28D20/00 take precedence
• CPC Class Codes: F28D 2021/0028 for cooling heat generating elements, e.g. for cooling electronic components or electric devices
• CPC Class Codes: F28D 9/0037 the conduits for the other heat-exchange medium also being formed by paired plates touching each other F28D9/0043 takes precedence
• CPC Class Codes: F28D 9/0093 Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes precedence
• CPC Class Codes: F28F 3/048 in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
• CPC Class Codes: G03B 21/16 Cooling; Preventing overheating
• CPC Class Codes: H04N 9/3144 Cooling systems cooling of liquid crystal cells in general G02F1/133382; cooling of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/16

Abstract

A heat exchange device includes an inner member through which a first liquid circulates, and a pair of outer members through which a second liquid circulates, the inner member is provided with an inner housing through which the first liquid circulates, and a pair of first plate-like members attached to the inner housing so as to be opposed to each other, each of the pair of outer members is provided with an outer housing through which the second liquid circulates, and a second plate-like member attached to the outer housing, and the pair of outer members are disposed on both sides of the inner member so that one of the pair of first plate-like members is opposed to one of the second plate-like members of the pair of outer members, and the other of the pair of first plate-like members is opposed to the other of the second plate-like members.

Claims

1. A heat exchange device comprising:

an inner member through which a first liquid circulates; and

a pair of outer members through which a second liquid different from the first liquid circulates,

wherein the inner member is provided with

an inner housing through which the first liquid circulates, and

a pair of first plate-like members attached to the inner housing so as to be opposed to each other,

each of the pair of outer members is provided with

an outer housing through which the second liquid circulates, and

a second plate-like member attached to the outer housing, and

the pair of outer members are disposed at positions across the inner member from each other so that one of the pair of first plate-like members is opposed to one of the second plate-like members of the pair of outer members, and the other of the pair of first plate-like members is opposed to the other of the second plate-like members.

2. The heat exchange device according to claim 1, wherein

each of the pair of first plate-like members is provided with a heat receiving member disposed in the inner housing, and adapted to receive heat from the first liquid,

each of the second plate-like members is provided with a heat release member disposed in the outer housing, and adapted to release conducted heat to the second liquid,

the one of the pair of first plate-like members and the one of the second plate-like members are connected to each other so as to be able to conduct the heat, and

the other of the pair of first plate-like members and the other of the second plate-like members are connected to each other so as to be able to conduct the heat.

3. The heat exchange device according to claim 1, wherein

the inner housing has a division wall adapted to divide an inner space of the inner housing into a first space as a space of one of the pair of first plate-like members, and a second space as a space of the other of the pair of first plate-like members, and

the first liquid having circulated in the first space is made to flow into the second space.

4. The heat exchange device according to claim 3, wherein

the division wall has a communication opening adapted to communicate the first space and the second space with each other.

5. The heat exchange device according to claim 4, wherein

the division wall is formed along a vertical direction, and

the communication opening is located in a vicinity of an end portion on an upper side in the vertical direction in the division wall.

6. The heat exchange device according to claim 5, wherein

among the pair of first plate-like members,

the first plate-like member located on the first space side is connected to the second plate-like member of the outer member located on a downstream side in a flow channel of the second liquid out of the two outer members so as to be able to conduct the heat, and

the first plate-like member located on the second space side is connected to the second plate-like member of the outer member located on an upstream side in the flow channel of the second liquid out of the two outer members so as to be able to conduct the heat.

7. The heat exchange device according to claim 1, wherein

the inner housing is provided with

an inner-housing-side inlet through which the first liquid flows into the inner housing, and

an inner-housing-side outlet through which the first liquid located inside the inner housing flows to an outside, and

the inner-housing-side inlet and the inner-housing-side outlet are located in a surface on the same side of the inner housing.

8. The heat exchange device according to claim 7, wherein

the inner-housing-side inlet is located on a lower side in a vertical direction, and

the inner-housing-side outlet is located on an upper side in the vertical direction.

9. The heat exchange device according to claim 1, wherein

each of the outer housings is provided with

an outer-housing-side inlet through which the second liquid flows into the outer housing, and

an outer-housing-side outlet through which the second liquid located inside the outer housing flows to an outside, and

the outer-housing-side outlet provided to the one of the two outer members and the outer-housing-side inlet provided to the other of the two outer members are connected to each other so that the second liquid can circulate.

10. The heat exchange device according to claim 9, wherein

the outer-housing-side outlet provided to the one of the outer members and the outer-housing-side inlet provided to the other of the outer members are located in surfaces facing to the same side,

the outer-housing-side inlet provided to the one of the outer members and the outer-housing-side outlet provided to the other of the outer members are located in surfaces facing to the same side,

the outer-housing-side inlet provided to each of the two outer members is located on a lower side in a vertical direction, and

the outer-housing-side outlet provided to each of the two outer members is located on an upper side in the vertical direction.

11. The heat exchange device according to claim 1, further comprising:

a thermoelectric conversion element disposed in at least one of a position between the one of the first plate-like members and the one of the second plate-like members and a position between the other of the first plate-like members and the other of the second plate-like members, wherein a heat absorbing side of the thermoelectric conversion element faces to the first plate-like member, and a heat release side of the thermoelectric conversion element faces to the second plate-like member.

12. A cooling device comprising:

the heat exchange device according to claim 1;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

13. A cooling device comprising:

the heat exchange device according to claim 2;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

14. A cooling device comprising:

the heat exchange device according to claim 3;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

15. A cooling device comprising:

the heat exchange device according to claim 7;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

16. A cooling device comprising:

the heat exchange device according to claim 9;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

17. A cooling device comprising:

the heat exchange device according to claim 11;

a heat absorbing device adapted to absorb heat generated in a cooling object to conduct the heat to the first liquid; and

a heat radiation device adapted to radiate heat of the second liquid to which the heat is conducted from the first liquid in the heat exchange device.

18. The cooling device according to claim 12, wherein

the heat absorbing device includes

a heat absorber adapted to absorb the heat of the cooling object and then conduct the heat to the first liquid circulating through the heat absorber, and

a first liquid pressure-feed section adapted to pressure-feed the first liquid, and

the heat radiation device includes

a second liquid pressure-feed section adapted to pressure-feed the second liquid, and

a heat radiator adapted to radiate the heat conducted from the second liquid circulating through the heat radiator.

19. A projector comprising:

ng device according to claim 18.

20. The projector according to claim 19, comprising:

a light source;

a light modulation device adapted to modulate light emitted from the light source to form an image;

an optical component making a contribution to the formation of the image by the light modulation device; and

a circulatory cooling device having a sealed housing incorporating the cooling object, and adapted to circulate a gas in the sealed housing to cool the cooling object,

wherein the cooling object is at least either of the light source, the light modulation device, and the optical component.