JP2021196064A - Heat exchange device - Google Patents

Abstract

To achieve the operation of a heat pump of transferring heat from a cooling space to a heat radiation space without requiring switching a flow passage of a liquid as a heat exchange medium, with respect to a heat exchange device including a solid cooling member exhibiting elastic heat quantity effect.SOLUTION: A solid cooling member 18 is deformed so as to repeat increase/decrease in elastic strain, and exhibits elastic heat quantity effect. A first heat exchange part 30 accelerates heat exchange between the solid cooling member 18 and air inside a cooling space 12 due to receiving a first liquid from a first blowout part 20, compared to the case of not receiving the first liquid. A second heat exchange part 32 accelerates heat exchange between the solid cooling member 18 and air inside a heat radiation space 14 due to receiving a second liquid from a second blowout part 26, compared to the case of not receiving the second liquid. As the elastic strain of the solid cooling member 18 increases, a first piston part 202 expands a volume of a first liquid chamber 201a, and a second piston part 262 reduces a volume of a second liquid chamber 261a.SELECTED DRAWING: Figure 1

Description

The present invention relates to a heat exchange device using a solid cooling member that exhibits an elastic calorific value effect.

As this type of heat exchange device, for example, the cooling system described in Patent Document 1 has been conventionally known. The cooling system described in Patent Document 1 includes two refrigerant sets as solid cooling members that exhibit an elastic calorific value effect, and a load cross member that gives elastic strain to the two refrigerant sets.

The load cross member reciprocates in a predetermined member reciprocating direction. The first refrigerant set, which is one of the two refrigerant sets, is provided on one side of the load cross member in the reciprocating direction of the member, and the second refrigerant set, which is the other of the two refrigerant sets, is the load cross member. It is provided on the other side in the reciprocating direction of the member.

For example, when the load cross member moves from the stroke end on the other side in the reciprocating direction of the member to the stroke end on the one side, the first refrigerant set is compressively deformed, transformed from austenite to martensite, and releases latent heat. At the same time, the second refrigerant assembly is relaxed, transforming from martensite to austenite and absorbing latent heat.

On the contrary, when the load cross member moves from the stroke end on one side in the reciprocating direction of the member to the stroke end on the other side, the first refrigerant assembly is relaxed, transformed from martensite to austenite, and absorbs latent heat. At the same time, the second refrigerant set is compressed and deformed, transforming from austenite to martensite and releasing latent heat.

Japanese Patent No. 5927580

In the cooling system of Patent Document 1, since the first refrigerant set and the second refrigerant set alternately repeat heat absorption and heat dissipation, the high temperature portion and the low temperature portion of the cooling system are alternately alternated. For example, when an attempt is made to cool a cooling space of an object to be cooled by a heat exchange medium, the heat exchange medium must always be cooled in a low temperature portion of the cooling system. Therefore, in the cooling system, it is necessary to switch the distribution path of the heat exchange medium for cooling the cooling space in synchronization with the replacement of the high temperature portion and the low temperature portion. When the heating space of the object to be heated is heated by the heat exchange medium, it is necessary to switch the distribution path of the heat exchange medium in the same manner. As a result of detailed examination by the inventors, the above was found.

In view of the above points, the present invention is a heat exchange device provided with a solid cooling member that exhibits an elastic heat quantity effect, without the need to switch the flow path of the fluid as the heat exchange medium, from the cooling space to the heat dissipation space. The purpose is to realize the operation of a heat pump that transfers heat to.

In order to achieve the above object, the heat exchange device according to claim 1 is used.
A solid cooling member (18) that is deformed so as to repeatedly increase and decrease elastic strain and exhibits an elastic calorific value effect.
It has a first movable portion (202) that changes the volume of the first fluid chamber (201a), and the first movable portion reduces the volume of the first fluid chamber to blow out the first fluid from the first fluid chamber. The first outlet (20) and
It has a second movable part (262) that changes the volume of the second fluid chamber (261a), and the second movable part reduces the volume of the second fluid chamber to blow out the second fluid from the second fluid chamber. The second outlet (26) and
The first blowing portion is arranged so as to receive the first fluid blown out, and by receiving the first fluid from the first blowing portion, the solid cooling member and the cooling are performed as compared with the case where the first fluid is not received. The first heat exchange unit (30) that promotes heat exchange with the fluid in the space (12),
The second outlet is arranged so as to receive the second fluid blown out, and by receiving the second fluid from the second outlet, the solid cooling member and the heat dissipation are compared with the case where the second fluid is not received. It is equipped with a second heat exchange unit (32) that promotes heat exchange with the fluid in the space (14).
The solid cooling member and the first movable portion are arranged so that the first movable portion expands the volume of the first fluid chamber and the second movable portion reduces the volume of the second fluid chamber as the elastic strain of the solid cooling member increases. The second movable part is connected to each other.

In this way, when the solid cooling member absorbs heat as the elastic strain decreases, heat exchange between the solid cooling member and the fluid in the cooling space via the first heat exchange section is promoted. On the other hand, when the solid cooling member dissipates heat due to the increase in elastic strain, heat exchange between the solid cooling member and the fluid in the heat dissipation space via the second heat exchange section is promoted. Therefore, as the elastic strain of the solid cooling member is repeatedly increased and decreased, heat transfer from the cooling space to the solid cooling member and heat transfer from the solid cooling member to the heat dissipation space are alternately performed. Therefore, it is possible to realize the operation of the heat pump that transfers heat from the cooling space to the heat dissipation space without the need to switch the flow paths of the first and second fluids.

The reference numerals in parentheses attached to each component or the like indicate an example of the correspondence between the component or the like and the specific component or the like described in the embodiment described later.

It is sectional drawing which showed the schematic structure of the heat exchange apparatus schematically in 1st Embodiment, and showed the state which the reciprocating movable unit which the heat exchange apparatus has is located at the stroke end on the other side in the operating direction. It is a figure. It is sectional drawing which showed the schematic structure of the heat exchange apparatus schematically in 1st Embodiment, and showed the state which the reciprocating movable unit which the heat exchange apparatus has is located at the stroke end on one side in the operating direction. It is a figure. In the second embodiment, it is a cross-sectional view schematically showing a heat exchange device in a state where the reciprocating movable unit is located at the stroke end on the other side in the operating direction, and is a view corresponding to FIG. 1. In the second embodiment, it is a cross-sectional view schematically showing a heat exchange device in a state where the reciprocating movable unit is located at the stroke end on one side in the operating direction, and is a view corresponding to FIG. 2. In the third embodiment, it is a cross-sectional view schematically showing a heat exchange device in a state where the reciprocating movable unit is located at the stroke end on the other side in the operating direction, and is a view corresponding to FIG. 1. In the third embodiment, it is a cross-sectional view schematically showing a heat exchange device in a state where the reciprocating movable unit is located at the stroke end on one side in the operating direction, and is a view corresponding to FIG. 2.

Hereinafter, each embodiment will be described with reference to the drawings. In each of the following embodiments, the parts that are the same or equal to each other are designated by the same reference numerals in the drawings.

(First Embodiment)
The heat exchange device 10 shown in FIG. 1 operates a heat pump that transfers heat from the cooling space 12 to the heat dissipation space 14. For example, the heat exchange device 10 is a cooler or a refrigerator that cools the cooling space 12 by dissipating the heat absorbed from the cooling space 12 to the heat dissipation space 14.

As shown in FIG. 1, the heat exchange device 10 includes a housing 16, a solid cooling member 18, a first blowout section 20, a second blowout section 26, a first heat exchange section 30, and a second heat exchange. A portion 32, an actuator 34, and a movable connecting portion 36 are provided.

The housing 16 constitutes the outer shell of the heat exchange device 10, and includes a solid cooling member 18, a first blowout section 20, a second blowout section 26, a first heat exchange section 30, a second heat exchange section 32, and an actuator 34. Supports. The housing 16 of the present embodiment is a fixing member that does not move.

The solid cooling member 18 is made of a metal material that exhibits an elastic calorific value effect. The solid cooling member 18 is deformed so as to repeatedly increase and decrease the elastic strain of the solid cooling member 18, and a phase transformation occurs between the austenite phase and the martensite phase accordingly.

Specifically, the solid cooling member 18 is in a strain relaxation state in which the deformation force that elastically deforms the solid cooling member 18 is removed, and the elastic deformation of the solid cooling member 18 is increased with respect to the strain relaxation state in which the deformation force is applied. It is repeatedly elastically deformed with respect to the strain applied state. The elastic strain of the solid cooling member 18 in the strain application state is larger than the elastic strain of the solid cooling member 18 in the strain relaxation state. The solid cooling member 18 has an austenite phase in the strain relaxation state and a martensite phase in the strain application state.

The elastic strain of the solid cooling member 18 in the strain relaxation state may or may not be zero. FIG. 1 shows a heat exchange device 10 when the solid cooling member 18 is in a strain relaxation state, and FIG. 2 shows a heat exchange device 10 when the solid cooling member 18 is in a strain application state.

When the solid cooling member 18 is changed from the strain relaxation state of FIG. 1 to the strain application state of FIG. 2, the solid cooling member 18 undergoes a phase transformation from the austenite phase to the martensite phase, so that latent heat is released from the solid cooling member 18. On the contrary, when the solid cooling member 18 is changed from the strain application state of FIG. 2 to the strain relaxation state of FIG. 1, it undergoes a phase transformation from the martensite phase to the austenite phase, and thus absorbs heat as latent heat of the solid cooling member 18. do. That is, the solid cooling member 18 has a higher temperature in the strain application state of FIG. 2 than in the strain relaxation state of FIG.

As shown in FIGS. 1 and 2, in the present embodiment, the cooling space 12 and the heat dissipation space 14 are provided side by side in the space arrangement direction D1 as the first direction. Then, in the space arrangement direction D1, the solid cooling member 18 is arranged between the cooling space 12 and the heat dissipation space 14. That is, the cooling space 12 is arranged on one side of the space arrangement direction D1 with respect to the solid cooling member 18, and the heat dissipation space 14 is arranged on the other side of the space arrangement direction D1 with respect to the solid cooling member 18.

Further, the solid cooling member 18 has one end portion 181 provided on one side of the space arrangement direction D1 and the other end portion 182 provided on the other side of the space arrangement direction D1. One end portion 181 of the solid cooling member 18 is fixed to a member support portion 161 that constitutes a part of the housing 16.

The first blowing section 20 is a positive displacement blowing section that blows out a first fluid (specifically, air). The first blowing portion 20 has a first cylinder portion 201 and a first piston portion 202 as a first movable portion that reciprocates in the operating direction D2 as the second direction. The operating direction D2 and the spatial arrangement direction D1 are directions that intersect each other, strictly speaking, directions that are perpendicular to each other.

A first fluid chamber 201a in which the first fluid enters is formed in the first cylinder portion 201. The first piston portion 202 covers one side of the first fluid chamber 201a in the operating direction D2. The first piston portion 202 is formed with an outlet hole 202a that penetrates the first piston portion 202 in the operating direction D2. The first cylinder portion 201 is also a part of the housing 16.

Further, the first blowing portion 20 is provided on the other side of the operating direction D2 with respect to the cooling space 12. Therefore, the first piston portion 202 faces the cooling space 12 and is provided on the other side of the operating direction D2 with respect to the cooling space 12. The first piston portion 202 separates the first fluid chamber 201a from the cooling space 12.

The first piston portion 202 provided in this way reciprocates with respect to the housing 16 in the operating direction D2 to increase or decrease the volume of the first fluid chamber 201a. Specifically, the volume of the first fluid chamber 201a is increased as the first piston portion 202 moves to one side of the operating direction D2 with respect to the housing 16 in the reciprocating motion. On the contrary, the volume of the first fluid chamber 201a is reduced as the first piston portion 202 moves to the other side of the operating direction D2 with respect to the housing 16.

Then, the first blowing portion 20 reduces the volume of the first fluid chamber 201a by the first piston portion 202, thereby moving from the first fluid chamber 201a to the cooling space 12 through the blowing hole 202a of the first piston portion 202. The first fluid is blown out as shown by arrow A1 (see FIG. 1). The cooling space 12 is formed as a closed space surrounded by the housing 16 and the first piston portion 202.

The second blowing section 26 is a positive displacement blowing section that blows out a second fluid (specifically, air). The second blowing portion 26 has a second cylinder portion 261 and a second piston portion 262 as a second movable portion that reciprocates in the operating direction D2.

A second fluid chamber 261a in which the second fluid enters is formed in the second cylinder portion 261. The second piston portion 262 covers the other side of the second fluid chamber 261a in the operating direction D2. The second piston portion 262 is formed with an outlet hole 262a that penetrates the second piston portion 262 in the operating direction D2. The second cylinder portion 261 is also a part of the housing 16.

Further, the second blowing portion 26 is provided on one side of the operating direction D2 with respect to the heat radiating space 14. Therefore, the second piston portion 262 faces the heat radiating space 14 and is provided on one side of the operating direction D2 with respect to the heat radiating space 14. The second piston portion 262 separates the second fluid chamber 261a from the heat radiating space 14.

The second piston portion 262 provided in this way reciprocates with respect to the housing 16 in the operating direction D2 to increase or decrease the volume of the second fluid chamber 261a. Specifically, the volume of the second fluid chamber 261a is increased so that the second piston portion 262 moves to the other side of the operating direction D2 with respect to the housing 16 in the reciprocating motion. On the contrary, the volume of the second fluid chamber 261a is reduced as the second piston portion 262 moves to one side of the operating direction D2 with respect to the housing 16.

Then, the second blowing portion 26 reduces the volume of the second fluid chamber 261a by the second piston portion 262 from the second fluid chamber 261a to the heat dissipation space 14 through the blowing hole 262a of the second piston portion 262. The second fluid is blown out as shown by arrow A2 (see FIG. 2). The heat dissipation space 14 is formed as a part of an external space extending to the outside of the housing 16.

The movable connecting portion 36 extends in the operating direction D2. The movable connecting portion 36 has one end provided on one side of the operating direction D2 and the other end provided on the other side of the operating direction D2. One end of the movable connecting portion 36 is fixed to the second piston portion 262, and the other end of the movable connecting portion 36 is fixed to the first piston portion 202. Therefore, the movable connecting portion 36, the first piston portion 202, and the second piston portion 262 are integrated to form a reciprocating movable unit 37 that reciprocates in the operating direction D2 with respect to the housing 16.

Further, the other end portion 182 of the solid cooling member 18 is fixed to the movable connecting portion 36.

The first heat exchange unit 30 is a fin for promoting heat exchange, and is made of, for example, an aluminum alloy. The first heat exchange section 30 is exposed to the cooling space 12, and the first blowout section 20 is arranged so as to receive the first fluid blown out as shown by the arrow A1.

Further, the first heat exchange portion 30 is fixed to the member support portion 161 of the housing 16 and is thermally conductively connected to one end portion 181 of the solid cooling member 18. Due to such a configuration, the first heat exchange unit 30 receives the first fluid from the first blowing unit 20 and is in the solid cooling member 18 and the cooling space 12 as compared with the case where the first fluid is not received. Promotes heat exchange with the fluid (specifically, air).

The second heat exchange unit 32 is a fin for promoting heat exchange similar to the first heat exchange unit 30, and is made of, for example, an aluminum alloy. The second heat exchange section 32 is exposed to the heat dissipation space 14, and the second blowout section 26 is arranged so as to receive the second fluid blown out as shown by the arrow A2.

Further, the second heat exchange portion 32 is fixed to the movable connecting portion 36 and is thermally conductively connected to the other end portion 182 of the solid cooling member 18. Due to such a configuration, the second heat exchange unit 32 receives the second fluid from the second outlet 26, and as compared with the case where the second fluid is not received, the solid cooling member 18 and the heat dissipation space 14 are included. Promotes heat exchange with the fluid (specifically, air).

The actuator 34 is connected to the reciprocating movable unit 37, and reciprocates the reciprocating movable unit 37 in the operating direction D2 with a predetermined stroke. That is, the actuator 34 is a drive source for driving the reciprocating movable unit 37. Note that FIG. 1 shows the heat exchange device 10 in a state where the reciprocating movable unit 37 is located at the stroke end on the other side in the operating direction D2, and FIG. 2 shows the reciprocating movable unit 37 on one side in the operating direction D2. The heat exchange device 10 in a state of being located at the end of the stroke is shown.

In the heat exchange device 10 configured as described above, it is assumed that, for example, the reciprocating movable unit 37 is moved from the state of FIG. 1 to one side of the operating direction D2 to reach the state of FIG. In that case, as the reciprocating movable unit 37 is moved from the state of FIG. 1 to one side of the operating direction D2, the other end portion 182 of the solid cooling member 18 operates in the operating direction with respect to the one end portion 181 of the solid cooling member 18. It will shift to one side of D2.

That is, as shown in FIGS. 1 and 2, in the reciprocating motion of the reciprocating movable unit 37 with respect to the housing 16, for example, the more the reciprocating movable unit 37 moves to one side in the operating direction D2, the more the solid cooling member 18 undergoes shear deformation. The elastic strain of the solid cooling member 18 increases in an expanded manner. As a result, as the reciprocating movable unit 37 moves to one side in the operating direction D2, the solid cooling member 18 is changed from the strain relaxation state of FIG. 1 to the strain application state of FIG.

At this time, as the reciprocating movable unit 37 moves to one side in the operating direction D2, the first piston portion 202 expands the volume of the first fluid chamber 201a, and at the same time, the second piston portion 262 has the second fluid chamber 261a. Reduce the volume of. That is, in the present embodiment, as the elastic strain of the solid cooling member 18 increases, the first piston portion 202 expands the volume of the first fluid chamber 201a and the second piston portion 262 reduces the volume of the second fluid chamber 261a. As described above, the solid cooling member 18, the first piston portion 202, and the second piston portion 262 are connected to each other.

Then, when the reciprocating movable unit 37 moves to one side of the operating direction D2, the volume of the first fluid chamber 201a expands, so that the first blowing portion 20 for example blows the air in the cooling space 12 from the blowing hole 202a. It is sucked into the first fluid chamber 201a. That is, the first blowing unit 20 does not blow out the first fluid. On the other hand, in this case, since the volume of the second fluid chamber 261a is reduced, the second blowing portion 26 is directed toward the second heat exchange portion 32 in the heat dissipation space 14 as shown by an arrow A2 (see FIG. 2). Blow out the second fluid.

Therefore, when the reciprocating movable unit 37 moves to one side of the operating direction D2, the solid cooling member 18 uses only the air in the heat dissipation space 14 among the air in the cooling space 12 and the air in the heat dissipation space 14. It is made to exchange heat. Then, the solid cooling member 18 releases the latent heat of the solid cooling member 18 as the strain relaxation state of FIG. 1 changes to the strain application state of FIG. 2, and the temperature becomes higher than that of the air in the heat dissipation space 14. Heat is dissipated from the solid cooling member 18 to the heat dissipation space 14.

Next, conversely to the above, it is assumed that the reciprocating movable unit 37 is moved from the state of FIG. 2 to the other side of the operating direction D2 to reach the state of FIG. In that case, as the reciprocating movable unit 37 is moved from the state of FIG. 2 to the other side of the operating direction D2, the displacement of the other end portion 182 with respect to the one end portion 181 of the solid cooling member 18 in the operating direction D2 is reduced. Will be done.

That is, as shown in FIGS. 1 and 2, in the reciprocating motion of the reciprocating movable unit 37 with respect to the housing 16, for example, the more the reciprocating movable unit 37 moves to the other side of the operating direction D2, the more the solid cooling member 18 undergoes shear deformation. The elastic strain of the solid cooling member 18 is reduced in a reduced manner. As a result, as the reciprocating movable unit 37 moves to the other side of the operating direction D2, the solid cooling member 18 is changed from the strain application state of FIG. 2 to the strain relaxation state of FIG.

At this time, as the reciprocating movable unit 37 moves to the other side of the operating direction D2, the first piston portion 202 reduces the volume of the first fluid chamber 201a, and at the same time, the second piston portion 262 reduces the volume of the second fluid chamber 261a. Enlarge the volume of.

Then, when the reciprocating movable unit 37 moves to the other side of the operating direction D2, the volume of the second fluid chamber 261a expands, so that the second blowing portion 26, for example, blows the air in the heat radiation space 14 from the blowing hole 262a. It is sucked into the second fluid chamber 261a. That is, the second blowing portion 26 does not blow out the second fluid. On the other hand, in this case, since the volume of the first fluid chamber 201a is reduced, the first blowing portion 20 is directed toward the first heat exchange portion 30 in the cooling space 12 as shown by an arrow A1 (see FIG. 1). Blow out the first fluid.

Therefore, when the reciprocating movable unit 37 moves to the other side of the operating direction D2, the solid cooling member 18 is exclusively the air in the cooling space 12 out of the air in the cooling space 12 and the air in the heat dissipation space 14. It is made to exchange heat. Then, the solid cooling member 18 absorbs heat as latent heat of the solid cooling member 18 as the strain application state of FIG. 2 changes to the strain relaxation state of FIG. 1, and the temperature becomes lower than that of the air in the cooling space 12. Therefore, heat is absorbed from the cooling space 12.

In this way, the reciprocating movable unit 37 is reciprocated in the operating direction D2 by the actuator 34, and the shear deformation of the solid cooling member 18 is repeated, so that the elastic strain of the solid cooling member 18 is repeatedly increased or decreased. Then, the solid cooling member 18 absorbs heat from the cooling space 12 and the solid cooling member 18 dissipates heat to the heat dissipation space 14 alternately and repeatedly.

As described above, according to the present embodiment, the solid cooling member 18 is deformed so as to repeatedly increase and decrease the elastic strain, and exhibits an elastic calorific value effect. By receiving the first fluid from the first blowing unit 20, the first heat exchange unit 30 exchanges heat between the solid cooling member 18 and the air in the cooling space 12 as compared with the case where the first fluid is not received. To promote. The second heat exchange unit 32 receives the second fluid from the second outlet 26, and exchanges heat between the solid cooling member 18 and the air in the heat dissipation space 14 as compared with the case where the second fluid is not received. To promote. Then, as the elastic strain of the solid cooling member 18 increases, the first piston portion 202 expands the volume of the first fluid chamber 201a and the second piston portion 262 reduces the volume of the second fluid chamber 261a.

As a result, when the solid cooling member 18 absorbs heat as the elastic strain decreases, heat exchange between the solid cooling member 18 and the air in the cooling space 12 via the first heat exchange unit 30 is promoted. On the other hand, when the solid cooling member 18 dissipates heat due to the increase in elastic strain, heat exchange between the solid cooling member 18 and the air in the heat dissipation space 14 via the second heat exchange unit 32 is promoted. ..

That is, the timing at which heat exchange between the solid cooling member 18 and the air in the heat dissipation space 14 is promoted and the timing at which heat dissipation from the solid cooling member 18 is performed are synchronized. At the same time, the timing at which the heat exchange between the solid cooling member 18 and the air in the cooling space 12 is promoted and the timing at which the solid cooling member 18 absorbs heat are synchronized.

Therefore, as the elastic strain of the solid cooling member 18 is repeatedly increased and decreased, heat transfer from the cooling space 12 to the solid cooling member 18 and heat transfer from the solid cooling member 18 to the heat dissipation space 14 are alternately performed. It will be. Therefore, it is possible to realize the operation of the heat pump that transfers heat from the cooling space 12 to the heat dissipation space 14 without the need to switch the flow paths of the first and second fluids.

Here, in the present embodiment, the crystal of the solid cooling member 18 exhibiting the elastic calorific value effect is deformed as if it is sheared as the elastic strain of the solid cooling member 18 increases. Specifically, in the present embodiment, the solid cooling member 18 undergoes a phase transformation between the austenite phase and the martensite phase as the elastic strain of the solid cooling member 18 repeatedly increases and decreases. In this case, as the elastic strain of the solid cooling member 18 increases, the crystals of the solid cooling member 18 change from austenite crystals to martensite crystals. The martensite crystals have a sheared shape as compared with the austenite crystals.

On the other hand, according to the present embodiment, the shear deformation of the solid cooling member 18 is repeated, so that the elastic strain of the solid cooling member 18 is repeatedly increased or decreased. Therefore, when the elastic strain of the solid cooling member 18 is repeatedly increased or decreased, the solid cooling member 18 is elastically deformed so as to match the way the crystals of the solid cooling member 18 are deformed, so that the phase transformation of the solid cooling member 18 is efficiently expressed. It is possible to make it.

Further, according to the present embodiment, when the solid cooling member 18 is changed from the strain application state of FIG. 2 to the strain relaxation state of FIG. 1, the elastic deformation of the solid cooling member 18 is relaxed. That is, when the reciprocating movable unit 37 moves from the state of FIG. 2 to the other side in the operating direction D2, the elastic force of the solid cooling member 18 acts to assist the movement of the reciprocating movable unit 37. Therefore, the elastic energy of the solid cooling member 18 can be regenerated as an urging force to move the first piston portion 202 and the second piston portion 262 to the other side of the operating direction D2 to reduce the driving force generated by the actuator 34. It is possible.

(Second Embodiment)
Next, the second embodiment will be described. In this embodiment, the differences from the above-mentioned first embodiment will be mainly described. Further, the same or equal parts as those in the above-described embodiment will be omitted or simplified. This also applies to the description of the embodiment described later.

As shown in FIGS. 3 and 4, the heat exchange device 10 of this embodiment does not include the actuator 34 (see FIG. 1).

Further, the housing 16 of the present embodiment is not a fixed member that does not move, but the disturbance vibration is transmitted from the external vibration source 40 and is vibrated in the operating direction D2 as shown by the arrow A3. That is, the entire heat exchange device 10 is vibrated by the vibration source 40. For example, as the vibration source 40, a power source such as an engine, a vehicle, or the like can be mentioned.

Further, in the present embodiment, the first piston portion 202, the second piston portion 262, and the solid cooling member 18 are resonated by transmitting disturbance vibration from the vibration source 40, whereby the reciprocating movable unit 37 is generated. Reciprocating motion is performed in the operating direction D2.

Then, the solid cooling member 18 repeatedly increases and decreases the elastic strain of the solid cooling member 18 by resonating the first piston portion 202, the second piston portion 262, and the solid cooling member 18. That is, the solid cooling member 18 repeats deformation between the strain relaxation state of FIG. 3 and the strain application state of FIG.

For example, the frequency of the disturbance vibration transmitted from the vibration source 40 is known experimentally in advance. Then, based on the frequency of the disturbance vibration, the mass of the first piston portion 202, the mass of the second piston portion 262, and the mass of the second piston portion 262 so that the first piston portion 202, the second piston portion 262, and the solid cooling member 18 resonate with each other. The spring constant and the like when the solid cooling member 18 is elastically deformed are determined. By doing so, the first piston portion 202, the second piston portion 262, and the solid cooling member 18 can be resonated by the disturbance vibration.

When the vibration direction of the disturbance vibration is limited, it is preferable to match the operation direction D2 with the vibration direction of the disturbance vibration. For example, when the disturbance vibration is a vibration in the vertical direction, the posture of the heat exchange device 10 may be determined so that the operating direction D2 is in the vertical direction.

As described above, according to the present embodiment, the solid cooling member 18 is elastically strained by causing the first piston portion 202, the second piston portion 262, and the solid cooling member 18 to resonate with each other. Repeat the increase / decrease of. Therefore, it is required to repeatedly increase or decrease the elastic strain of the solid cooling member 18 by utilizing the self-excited vibration between the first piston portion 202, the second piston portion 262, and the solid cooling member 18 caused by the resonance. It is possible to reduce the power. For example, it is possible to reduce the power required to reciprocate the reciprocating movable unit 37 with a predetermined stroke as compared with the case where the resonance does not occur.

Further, according to the present embodiment, the first piston portion 202, the second piston portion 262, and the solid cooling member 18 are resonated by transmitting disturbance vibration from the external vibration source 40. Therefore, it is possible to omit a power source such as an actuator 34 (see FIG. 1) that generates power in order to repeatedly increase or decrease the elastic strain of the solid cooling member 18.

Except as described above, the present embodiment is the same as the first embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned first embodiment can be obtained in the same manner as in the first embodiment.

(Third Embodiment)
Next, the third embodiment will be described. In this embodiment, the differences from the above-mentioned first embodiment will be mainly described.

As shown in FIGS. 5 and 6, the first heat exchange unit 30 and the second heat exchange unit 32 are made of the same material as the solid cooling member 18. That is, the first heat exchange unit 30 and the second heat exchange unit 32 are also made of a material capable of exhibiting an elastic calorific value effect.

The first heat exchange unit 30, the second heat exchange unit 32, and the solid cooling member 18 form a single component rather than separate components connected to each other.

As a result, the first heat exchange unit 30, the second heat exchange unit 32, and the solid cooling member 18 are configured as separate parts and are connected to each other, for example, as compared with the case where the first heat exchange unit 30, the second heat exchange unit 32, and the solid cooling member 18 are connected to each other. Heat conduction is facilitated between the member 18 and between the second heat exchange unit 32 and the solid cooling member 18. Therefore, it is possible to improve the heat exchange performance of the heat exchange device 10.

The shapes of the first heat exchange unit 30 and the second heat exchange unit 32 are, for example, fin shapes as in the first embodiment.

Except as described above, the present embodiment is the same as the first embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned first embodiment can be obtained in the same manner as in the first embodiment.

Although this embodiment is a modification based on the first embodiment, it is also possible to combine this embodiment with the above-mentioned second embodiment.

(Other embodiments)
(1) In each of the above-described embodiments, the solid cooling member 18 shown in FIG. 1 and the like is made of a metal material that exhibits an elastic calorific value effect, which is an example. For example, the solid cooling member 18 may be made of a non-metal material such as a polymer that exhibits an elastic calorific value effect.

(2) In the above-mentioned second embodiment, as shown in FIGS. 3 and 4, disturbance vibration is transmitted from the external vibration source 40 to the first piston portion 202, the second piston portion 262, and the solid cooling member 18. It is made to resonate by, but this is an example. For example, the heat exchange device 10 includes an actuator 34 as in the first embodiment, and the first piston portion 202, the second piston portion 262, and the solid cooling member 18 are subjected to vibration transmitted from the actuator 34. It does not matter if it is resonated.

(3) In each of the above-described embodiments, for example, as shown in FIG. 1, the fluid in the heat dissipation space 14 is specifically air, but this is an example. For example, the fluid in the heat dissipation space 14 may be a liquid. If the fluid in the heat radiating space 14 is a liquid as described above, the second fluid blown out by the second blowing portion 26 into the heat radiating space 14 is not air but the liquid.

(4) The present invention is not limited to the above-described embodiment, and can be variously modified and carried out. Further, the above embodiments are not unrelated to each other, and can be appropriately combined unless the combination is clearly impossible.

Further, in each of the above embodiments, it goes without saying that the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential or when they are clearly considered to be essential in principle. stomach. Further, in each of the above embodiments, when numerical values such as the number, numerical values, quantities, and ranges of the constituent elements of the embodiment are mentioned, when it is clearly stated that they are particularly essential, and when it is clearly limited to a specific number in principle. It is not limited to the specific number except when it is done.

Further, in each of the above embodiments, when the material, shape, positional relationship, etc. of the constituent elements, etc. are referred to, except when specifically specified or when the material, shape, positional relationship, etc. are limited to a specific material, shape, positional relationship, etc. in principle. , The material, shape, positional relationship, etc. are not limited.

(summary)
According to the first aspect shown in part or all of the above embodiments, the solid cooling member is deformed so as to repeatedly increase and decrease the elastic strain, and exhibits an elastic calorific value effect. The first heat exchange section is arranged so that the first blowout section receives the first fluid blown out, and the first heat exchange section receives the first fluid from the first blowout section, as compared with the case where the first fluid is not received. This promotes heat exchange between the solid cooling member and the fluid in the cooling space. The second heat exchange section is arranged so that the second blowout section receives the second fluid blown out, and the second heat exchange section receives the second fluid from the second blowout section as compared with the case where the second fluid is not received. This promotes heat exchange between the solid cooling member and the fluid in the heat dissipation space. Then, as the elastic strain of the solid cooling member increases, the solid cooling member and the first movable portion expand the volume of the first fluid chamber and the second movable portion reduces the volume of the second fluid chamber. The portion and the second movable portion are connected to each other.

Further, according to the second viewpoint, the first movable portion reciprocates to increase or decrease the volume of the first fluid chamber, and the second movable portion reciprocates to increase or decrease the volume of the second fluid chamber. Increase or decrease. Then, by resonating the first movable portion, the second movable portion, and the solid cooling member, the solid cooling member repeatedly increases and decreases the elastic strain of the solid cooling member. Therefore, by utilizing the self-excited vibration between the first movable portion, the second movable portion, and the solid cooling member generated by the resonance, the power required to repeatedly increase or decrease the elastic strain of the solid cooling member is reduced. It is possible.

Further, according to the third viewpoint, the first movable portion, the second movable portion, and the solid cooling member are resonated by transmitting disturbance vibration from the outside. Therefore, it is possible to omit a power source such as an actuator that generates power in order to repeatedly increase or decrease the elastic strain of the solid cooling member.

Further, according to the fourth viewpoint, the first heat exchange section and the second heat exchange section are made of the same material as the solid cooling member, and the first heat exchange section, the second heat exchange section, and the solid cooling member are simply. It constitutes one part. As a result, the space between the first heat exchange unit and the solid cooling member is compared with the case where the first heat exchange unit, the second heat exchange unit, and the solid cooling member are configured as separate parts and are connected to each other, for example. And heat conduction becomes easy between the second heat exchange part and the solid cooling member, respectively. Therefore, it is possible to improve the heat exchange performance of the heat exchange device.

Here, for example, when the solid cooling member undergoes a phase transformation between the austenite phase and the martensite phase due to repeated increase and decrease of the elastic strain of the solid cooling member, the solid cooling member increases the elastic strain of the solid cooling member. The crystals change from austenite crystals to martensite crystals. The martensite crystals have a sheared shape as compared with the austenite crystals.

On the other hand, according to the fifth aspect, the shear deformation of the solid cooling member is repeated, so that the elastic strain of the solid cooling member is repeatedly increased or decreased. Therefore, when the elastic strain of the solid cooling member is repeatedly increased or decreased, the solid cooling member is elastically deformed to match the way the crystals of the solid cooling member are deformed, so that the phase transformation of the solid cooling member can be efficiently expressed. Is.

12 Cooling space 18 Solid cooling member 20 1st blowout part 26 2nd blowout part 30 1st heat exchange part 32 2nd heat exchange part 201a 1st fluid chamber 202 1st piston part (1st movable part)
261a 2nd fluid chamber 262 2nd piston part (2nd moving part)

Claims (5)

A solid cooling member (18) that is deformed so as to repeatedly increase and decrease elastic strain and exhibits an elastic calorific value effect.
It has a first movable portion (202) that changes the volume of the first fluid chamber (201a), and the volume of the first fluid chamber is reduced by the first movable portion, whereby the first fluid from the first fluid chamber is reduced. The first blowing part (20) that blows out the
It has a second movable portion (262) that changes the volume of the second fluid chamber (261a), and the volume of the second fluid chamber is reduced by the second movable portion, so that the second fluid chamber to the second fluid The second blowing part (26) that blows out the
The first blowing portion is arranged so as to receive the first fluid blown out, and by receiving the first fluid from the first blowing portion, the first fluid is not received, as compared with the case where the first fluid is not received. A first heat exchange unit (30) that promotes heat exchange between the solid cooling member and the fluid in the cooling space (12),
The second blowing portion is arranged so as to receive the second fluid blown out, and by receiving the second fluid from the second blowing portion, the second fluid is not received, as compared with the case where the second fluid is not received. It is provided with a second heat exchange unit (32) that promotes heat exchange between the solid cooling member and the fluid in the heat dissipation space (14).
As the elastic strain of the solid cooling member increases, the solid cooling member increases the volume of the first fluid chamber and the second movable portion reduces the volume of the second fluid chamber. A heat exchange device in which the first movable portion and the second movable portion are connected to each other. The first movable portion increases or decreases the volume of the first fluid chamber by reciprocating.
The second movable part increases or decreases the volume of the second fluid chamber by reciprocating.
The heat exchange according to claim 1, wherein the solid cooling member repeatedly increases and decreases the elastic strain of the solid cooling member by causing the first movable portion, the second movable portion, and the solid cooling member to resonate with each other. Device. The heat exchange device according to claim 2, wherein the first movable portion, the second movable portion, and the solid cooling member are resonated by transmitting disturbance vibration from the outside. The first heat exchange section and the second heat exchange section are made of the same material as the solid cooling member.
The heat exchange device according to any one of claims 1 to 3, wherein the first heat exchange unit, the second heat exchange unit, and the solid cooling member constitute a single component. The heat exchange device according to any one of claims 1 to 4, wherein the elastic strain of the solid cooling member is repeatedly increased and decreased by repeating shear deformation of the solid cooling member.

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