Thermoelastic heat pump and motor vehicle with thermoelastic heat pump

Abstract

The invention relates to a thermoelastic heat pump and a motor vehicle with the thermoelastic heat pump, in particular to a thermoelastic heat pump which meets the requirement for high sealing performance and has high efficiency, and provides the thermoelastic heat pump. The invention relates to a cooling system comprising at least one first cooling medium channel, at least one second cooling medium channel, at least one thermoelastic element, which is arranged between the first cooling medium channel and the second cooling medium channel and is connected at the end to a respective carriage, and a drive mechanism, the carriage is movably arranged on two guide devices arranged non-parallel to each other, and wherein the drive mechanism is configured to move the carriage cyclically along the guide devices in such a way that the at least one thermoelastic element is brought into thermal contact alternately with an outer wall of the first cooling medium channel, in particular with a contact region thereof, and wherein the at least one thermoelastic element is brought into thermal contact with the outer wall of the first cooling medium channel. And is in thermal contact with an outer wall of the second cooling medium channel, in particular with a contact region of the outer wall of the second cooling medium channel.

Description

Technical Field

[0001] The invention relates to an elastocaloric heat pump, which comprises at least one first coolant channel, at least one second coolant channel and at least one elastocaloric element.

[0002] Furthermore, the invention relates to a motor vehicle with an elastomeric heat pump. Background Art

[0003] In order to increase the efficiency of heat pumps, for example in motor vehicles, elastocaloric heat pumps can be used. In elastocaloric heat pumps, the elastocaloric effect is used, wherein cyclic deformation of an elastocaloric material causes a reversible temperature change which can be used to transfer heat from a cooler coolant flow to a warmer coolant flow.

[0004] A device for heat exchange is known from DE 102018200376 A1, wherein the device for heat exchange comprises a thermoelastic tape and a heat conducting element made of a thermoelastic material, wherein the heat conducting element is constructed in such a way that a biconvex section of the heat conducting element engages in at least one thermoelastic tape and deforms the thermoelastic tape, thereby achieving an elastic-caloric effect, and heat conduction is carried out between the at least one thermoelastic tape and the biconvex section of the heat conducting element, and a flat section of another heat conducting element is in contact with the thermoelastic tape in the undeformed state of the thermoelastic tape, that is, heat conduction is carried out between the flat section of the other heat conducting element and the at least one thermoelastic tape.

[0005] DE 102018213497 A1 discloses a device for heat exchange, which is configured to surround a fluid pipeline that conducts a heat transfer fluid. The device comprises: at least one elastic thermal element, which is connected to the fluid pipeline; at least one actuator, which acts on the elastic thermal element and is configured to exert a force on the at least one elastic thermal element when actuated, so as to deform the at least one elastic thermal element; and at least one fastening element, which is configured to fasten the device for heat exchange to the fluid pipeline.

[0006] DE 102021209740 A1 discloses a heat pump, which includes a thermal elastomeric element, a first coolant channel on the cold side for a first coolant flow and a second coolant channel on the hot side for a second coolant flow, a first transmission element and a second transmission element, wherein the thermal elastomeric element is tensioned on both sides between the first transmission element and the second transmission element, wherein the first transmission element and the second transmission element are configured to move the thermal elastomeric element back and forth cyclically between the first coolant channel and the second coolant channel and to deform the thermal elastomeric element cyclically.

[0007] A cooling method using elastomeric materials is known from US Pat. No. 11,204,189 B2.

[0008] In elastomeric heat pumps, which transfer thermal energy from a cooler gaseous or liquid cooling medium to a hotter gaseous or liquid cooling medium, high sealing requirements must be met so that the cooling medium cannot escape. In addition, in particular in the case of cooling media with low thermal conductivity, particularly large surfaces must be provided for the elastomeric elements in order to ensure sufficient heat transfer. This places high demands on the shape and therefore the manufacturability of the elastomeric elements. Due to direct contact with the cooling medium water, this cooling medium water can condense on the elastomeric elements, which may evaporate again on the hot side and is thus absorbed by the hot air. Therefore, in heat pumps of this type, dehumidification must also be performed. Summary of the invention

[0009] The invention is based on the following task: to provide an elasto-caloric heat pump which meets high sealing requirements and has high efficiency.

[0010] In order to achieve the object on which the present invention is based, an elasto-thermal heat pump is proposed, which comprises at least one first cooling medium channel, at least one second cooling medium channel and at least one elasto-thermal element and a drive mechanism, wherein the at least one elasto-thermal element is arranged between the first cooling medium channel and the second cooling medium channel and is connected to respective carriages at the end sides, wherein the carriages are movably arranged at two guide devices that are not arranged parallel to each other, wherein the drive mechanism is configured to cyclically move the carriage along the guide devices so that the at least one elasto-thermal element is alternately brought into thermal contact with the outer wall of the first cooling medium channel, in particular with a contact area of ​​the outer wall of the first cooling medium channel, and with the outer wall of the second cooling medium channel, in particular with a contact area of ​​the outer wall of the second cooling medium channel.

[0011] A cooling medium can be guided in the first cooling medium channel and in the second cooling medium channel. The cooling medium can be a fluid, in particular a gaseous cooling medium and / or a liquid cooling medium. In addition, the cooling medium can be configured as a coolant. In particular, the cooling medium can be water or air.

[0012] The at least one elasto-thermal element is arranged between the first cooling medium channel and the second cooling medium channel and is connected to a respective carriage on the end side. Therefore, in particular, two carriages are provided. The drive mechanism is used to move the carriage cyclically at two guide devices arranged non-parallel to each other, so that the elasto-thermal element is alternately in thermal contact with the outer wall of the first cooling medium channel, in particular with the contact area of ​​the outer wall of the first cooling medium channel, and in thermal contact with the outer wall of the second cooling medium channel, in particular with the contact area of ​​the outer wall of the second cooling medium channel. The thermal contact is in particular physical contact. Through mutual thermal contact, heat transfer from the elasto-thermal element to the first cooling medium channel, in particular to the cooling medium guided in the first cooling medium channel, and heat transfer from the second cooling medium channel, in particular from the cooling medium guided in the second cooling medium channel to the elasto-thermal element can be achieved.

[0013] Since the elasto-thermal element bears against the outer wall of the first cooling medium channel and / or against the outer wall of the second cooling medium channel in thermal contact, the elasto-thermal element is not in direct physical contact with the cooling medium guided in the first cooling medium channel and / or in the second cooling medium channel. Therefore, high sealing requirements can be met. In addition, the risk of corrosion for the elasto-thermal element is reduced. In addition, with a suitable choice of the material of the first cooling medium channel and / or the second cooling medium channel, a high heat transfer and thus a high efficiency can be achieved.

[0014] Therefore, the first coolant channel and the second coolant channel can preferably be made of a material with high thermal conductivity at least in the region of the outer wall, more preferably in the contact region of the outer wall. The material can be, for example, metal, in particular copper or aluminum.

[0015] Due to the high thermal conductivity of the materials of the first coolant channel and the second coolant channel, in particular the contact region of the outer wall, the heat is quickly conducted to the coolant.

[0016] The carriage can be moved cyclically by means of a drive mechanism along guides that are not arranged parallel to one another. Since the guides are not arranged parallel to one another, the distance between the carriages changes during the cyclic movement, that is, the distance increases and decreases cyclically. This generates a restoring force that supports the cyclic movement and, in particular, returns the carriage to the starting position again.

[0017] For example, the at least one elasto-thermal element can be cyclically deformed (sometimes referred to as strained) by cyclic distance variations of the carriage.

[0018] Deformation may be understood as extension (ie a positive change in length) and / or compression (ie a negative change in length).

[0019] Through the cyclic deformation of the elasto-caloric element during the movement, the elasto-caloric element can be heated and cooled due to the elasto-caloric effect. Thus, heat transfer can be performed between the first cooling medium channel and the second cooling medium channel.

[0020] The elasto-thermal element has a material restoring force in the deformed state that opposes the deformation. Since the guides are not arranged parallel to one another, the material restoring force also has a component along the guides that provides the restoring force explained above. It is also conceivable that a spring is arranged between the carriages, which is deformed, i.e. compressed or stretched, when the carriages are cyclically moved along the guides that are not arranged parallel to one another.

[0021] The first coolant channel and the second coolant channel can be oriented at an angle, preferably at a right angle, to a main extension direction of the elasto-thermal element. The main extension direction of the elasto-thermal element preferably corresponds to the deformation direction of the elasto-thermal element.

[0022] The at least one first cooling medium channel can be configured as a hot channel. The at least one second cooling medium channel can be configured as a cold channel. Therefore, during operation of the heat pump, it can be provided that heat is transferred from the second cooling medium channel, in particular from the cooling medium guided in the second cooling medium channel, to the first cooling medium channel, in particular to the cooling medium guided in the first cooling medium channel.

[0023] Preferably, a plurality of first coolant channels, a plurality of second coolant channels and a plurality of elasto-thermal elements are provided, wherein a respective elasto-thermal element is arranged between a respective first coolant channel and a respective second coolant channel and is connected at the end to a respective one of the carriages.

[0024] Thus, in particular a plurality of first and second coolant channels can be provided arranged parallel to one another, wherein in each case one of the plurality of elastothermal elements is arranged between one of the plurality of first coolant channels and one of the plurality of second coolant channels.

[0025] By moving the carriage on guides that are not arranged parallel to one another, the elastic thermal element is brought into thermal contact alternately with the first coolant channel and the second coolant channel, respectively.

[0026] Preferably, it is provided that the at least one thermally elastic element is a thermally elastic strip, in particular a thermally elastic flat strip.

[0027] The main extension direction of the thermally elastic element designed as a thermally elastic strip, in particular as a thermally elastic flat strip, corresponds to the direction of maximum expansion.

[0028] It can furthermore be advantageously provided that the first coolant channel and the second coolant channel are thermally insulated at least outside the outer wall, in particular outside the contact region of the outer wall.

[0029] In particular, the cooling medium channels can be thermally insulated relative to each other and / or relative to the environment. For this purpose, a coating can be provided. In addition, the first cooling medium channel and the second cooling medium channel can be encapsulated in plastic.

[0030] It can further be advantageously provided that the at least one first coolant channel and / or the at least one second coolant channel have heat transfer structures, in particular ribs.

[0031] The heat transfer structure and / or the ribs are preferably located within the first cooling medium channel and / or the second cooling medium channel. As a result, the contact surface of the cooling medium channel with the cooling medium guided in the respective cooling medium channel is increased, so that an optimal heat exchange can take place. This is particularly advantageous when the cooling medium has a low thermal conductivity. Air is a cooling medium with a low thermal conductivity.

[0032] It is preferably provided that the at least one elastic thermal element is deformed, in particular stretched or compressed, in thermal contact with the outer wall of the at least one first coolant channel.

[0033] In other words, the elasto-thermal element is deformed, in particular stretched or compressed, at least in a state in which the elasto-thermal element is in thermal contact with the outer wall of the first coolant channel, in particular with a contact region of the outer wall of the first coolant channel.

[0034] In this case, it can also be provided that the thermally elastic element is not deformed, in particular not stretched or compressed, in the case of thermal contact with the outer wall of the at least one second coolant channel, in particular with the contact region of the outer wall of the at least one second coolant channel.

[0035] In this case, it can preferably be provided that the at least one elastic-thermal element is deformed at least partially when the carriage is moved in guides which are not arranged parallel to one another.

[0036] As explained above, the distance between the two carriages changes cyclically during movement along the non-parallel arrangement of the guides. If the elasto-thermal element is firmly tensioned between the two carriages, the elasto-thermal element is deformed, that is to say stretched or compressed, due to this cyclic distance change. Thus, the non-parallel arrangement of the guides can already produce a stretching and / or compression of the elasto-thermal element and thus a heat transfer from the second coolant channel to the first coolant channel.

[0037] Furthermore, it can be provided that the outer wall of the first coolant channel, in particular the contact region of the outer wall of the first coolant channel, is preferably convexly curved, so that the at least one elastic thermal element is deformed by contact with the outer wall of the first coolant channel.

[0038] In particular, in addition to the deformation of the elastothermal element caused by the movement of the carriage along the non-parallel guides, the geometry of the outer wall of the first coolant channel can also additionally lead to a deformation of the elastothermal element. If the outer wall of the first coolant channel is convexly curved, the elastothermal element can be optimally attached to the outer wall of the first coolant channel for a large coverage. Furthermore, due to the curvature of the outer wall of the coolant channel, preferably in the contact region, an additional deformation of the elastothermal element can be caused.

[0039] If the curvature radius of the outer wall of the first coolant channel is large, only a small portion of the deformation of the elasto-thermal element is caused by the curvature of the outer wall of the first coolant channel. In this case, the curvature of the first coolant channel is preferably used to compensate for manufacturing tolerances.

[0040] On the other hand, if the curvature radius of the outer wall of the first cooling medium channel is small, the deformation of the elasto-thermal element required for heat transfer can be mostly caused by the curvature. In this case, the guide devices arranged non-parallel to each other can deviate only slightly from the parallel arrangement, that is, the angle between the two guide devices is relatively small, preferably less than 10°, and more preferably less than 5°.

[0041] Furthermore, it can be provided that the outer wall of the first coolant channel, preferably the contact region of the outer wall of the first coolant channel, is designed to be elastically deformable, in particular resilient, and / or that the first coolant channel is supported in a resilient manner.

[0042] For example, the outer wall of the first coolant medium channel, preferably the contact region of the outer wall of the first coolant medium channel, may comprise or be formed by an elastic plate.

[0043] Furthermore, an elastic coating can be applied to the outer wall, preferably to the contact region of the outer wall. The elastic coating can be designed as a graphite film with a high thermal conductivity.

[0044] The elastically deformable design of the outer wall of the first coolant channel and / or the resilient support of the first coolant channel are particularly advantageous if the preferably convexly curved outer wall of the first coolant channel is not used or only to a small extent to cause deformations in the elastothermic element, but if production tolerances are to be compensated by the curvature. If the outer wall of the first coolant channel is resiliently yieldable or if the first coolant channel is resiliently supported, the forces that occur when the elastothermic element is in physical contact with the outer wall of the first coolant channel are limited, so that no additional deformation of the elastothermic element is caused or only a slight additional deformation of the elastothermic element is caused.

[0045] It is preferably provided that the guide device is a rail, in particular a roller rail, and / or that the carriage is guided along the guide device by means of rollers.

[0046] The rail, in particular the roller rail, may comprise a casing ( Sometimes called a cage).

[0047] If the carriage is guided along the guide by means of rollers, a particularly low-friction movement of the carriage can be achieved, so that the drive torque to be provided by the drive can be reduced.

[0048] The guide devices can also each comprise two radial bearings (eg groove ball bearings) or consist of them.

[0049] It is preferably provided that the drive mechanism comprises a transmission rod, in particular a connecting rod or a push rod, wherein the carriage is respectively connected rotatably or rigidly to one of the transmission rods, wherein the transmission rods are guided along respective guides.

[0050] The transmission rod is used to move the carriage along the guide device. For this purpose, the carriage is respectively connected to the transmission rod rotatably or rigidly. If rollers are provided for guiding the carriage along the guide device, the rollers can also be fastened to the transmission rod or to the ends of the transmission rod.

[0051] If the guide devices each have two radial bearings (eg groove ball bearings), the transmission rod can be guided in these radial bearings in a translationally movable manner.

[0052] It is further advantageously provided that the guide device and / or the transmission rod are rotatably mounted so that an angle between the guide device and / or the transmission rod can be adjusted.

[0053] Depending on the angle set, the value of the deformation of the elasto-thermal element due to the movement of the carriage along the non-parallel arranged guides can be set and thus the power of the elasto-thermal heat pump can be set.

[0054] It is preferably provided that the drive mechanism comprises at least one cam, wherein the transmission rod can be moved along the respective guide by means of the cam.

[0055] Thus, the cam or the cam stroke can be converted into a movement of the transmission rod.

[0056] In this case, a preferably retractable force transmission element, in particular a rod or a plate, can be provided, wherein the force transmission element is arranged between the cam and the transmission rod, wherein the force transmission element is designed for transmitting force from the cam to the transmission rod.

[0057] In other words, by rotating the cam, the cam stroke is first transmitted to the force transmission element.Then, the movement of the force transmission element caused by the cam stroke is transmitted to the transmission rod, which moves the carriage along the guide device.

[0058] In this case, it can be provided that the force transmission element runs on the cam by means of rollers.

[0059] The restoring forces which preferably occur during the cyclic movement of the carriage due to the non-parallel arrangement of the guides can be used in particular to ensure that the contact between the cam and the roller remains constant.

[0060] A further solution to the object on which the present invention is based consists in a motor vehicle comprising an elastomeric heat pump as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The present invention will be explained in more detail below with reference to the accompanying drawings, wherein:

[0062] Figure 1 shows an elastocaloric heat pump,

[0063] Figure 2 shows a cooling medium channel with a slightly curved outer wall,

[0064] Figure 3 shows a cooling medium channel with a strongly curved outer wall,

[0065] Figure 4 shows an elastocaloric heat pump,

[0066] Figure 5 shows a cooling medium channel with a flat outer wall, and

[0067] Figure 6 A motor vehicle with an elastocaloric heat pump is shown.

[0068] In the figures, components that are the same or correspond to each other are marked with the same reference numerals. DETAILED DESCRIPTION

[0069] Figure 1The elasto-caloric heat pump 100 according to the present invention is shown. The elasto-caloric heat pump 100 includes a large number of first cooling medium channels 10, which are configured as hot channels 10a. In addition, the elasto-caloric heat pump 100 includes a large number of second cooling medium channels 11, which are configured as cold channels 11a. Corresponding cooling media, such as water or air, are guided in the first cooling medium channels 10 and the second cooling medium channels 11. The first cooling medium channels 10 and the second cooling medium channels 11 are arranged alternately and parallel to each other. Corresponding elasto-caloric elements 12 are arranged between the respective first cooling medium channels 10 and the adjacent second cooling medium channels 11. The elasto-caloric elements 12 extend transversely to the first cooling medium channels 10 and the second cooling medium channels 11 at right angles. The elasto-caloric elements 12 are connected to the slides 13 at the end sides respectively. The slides 13 are arranged at two guide devices 14 arranged non-parallel to each other in a manner that they can reciprocate up and down in the drawing plane. In order to move the carriage 13, a drive mechanism 15 is provided, which in operation cyclically moves the carriage 13 along the guide device 14, so that the elastic thermal element 12 is alternately in thermal contact with the corresponding outer wall 16 of one of the first coolant channels 10 and in thermal contact with the outer wall 17 of the corresponding one of the second coolant channels 11. Due to the non-parallel arrangement of the guide device 14, the elastic thermal element 12 is cyclically deformed. In particular, the elastic thermal element 12 is deformed in thermal contact with the outer wall 16 of the respective first coolant channel 10.

[0070] The thermally elastic element 12 is designed as a thermally elastic flat strip 18. The first coolant channel 10 and the second coolant channel 11 have heat transfer structures 19 in the interior, which are designed as ribs 20 and by means of which heat transfer is promoted between the material of the coolant channels 10, 11 and the coolant guided in the coolant channels 10, 11.

[0071] The guide device 14 is configured as a rail 21 or a roller rail 22. Each of the carriages 13 is guided along one of the rails 21 by means of rollers 23. The drive mechanism 15 comprises a transmission rod 24. The transmission rod 24 is connected to the carriage 13 at the end side, especially in the region of the rollers 23. The transmission rod 24 moves back and forth approximately up and down in the drawing plane along the rail 22, whereby the carriage 13 also moves along the rail 21, and the elastic thermal element 12 is alternately in thermal contact with the respective first coolant channel 10 and the second coolant channel 11. In addition, the drive mechanism 15 comprises a telescopic force transmission element 25, which is configured as a telescopic plate 26. The plate 26 comprises a roller 27, which runs on a cam 28 of the drive mechanism 15. By rotating the cam 28, the cam stroke is transmitted to the force transmission element 25 via the roller 27, which in turn moves the transmission rod 24 along the guide device 14 configured as a rail 21. The angle α between the guides 14 can be set by means of an actuator 29. For this purpose, the guides 14 are rotatably supported. The greater the angle α between the guides 14 is set, the greater the deformation of the elasto-thermal element arranged between the carriages 13. Therefore, by setting the angle α, the thermal power of the elasto-thermal heat pump 100 can be set. The additional spring 30 in the rail 21 serves to reduce the drive torque to be provided by the drive mechanism 15 in order to operate the elasto-thermal heat pump 100.

[0072] Figure 2 A cross section through the first coolant channel 10 is shown. The elastomeric thermal element 12 is in thermal contact with the outer wall 16 of the first coolant channel 10. The outer wall 16 provides a contact area 31 for the elastomeric thermal element 12. The outer wall 16 is slightly convexly curved so that the elastomeric thermal material 12 is slightly bent when it is in thermal contact with the outer wall 16. Manufacturing tolerances can be compensated by this bending. In addition, additional deformation of the elastomeric thermal element can be caused by this bending during the thermal contact of the elastomeric thermal element 12 at the outer wall 16. If no additional deformation is desired, the outer wall 16 can be configured to be elastic at least in the contact area 31. Alternatively, the first coolant channel 10 itself can also be supported in an elastic manner. Outside the contact area 31 of the outer wall 16, the coolant channel 10 is provided with a thermal insulation 32.

[0073] Figure 3 Another design of the first cooling medium channel 10 is shown. Figure 2 The outer wall 16 or the contact area 31 of the outer wall 16 for the elasto-thermal element 12 is more strongly curved. Due to the stronger curvature, the elasto-thermal element 12 is bent more strongly during thermal contact, so that a stronger additional deformation is introduced into the elasto-thermal element 12. If the first coolant channel 10 is connected according to Figure 3The deformation of the elastic thermal element 12 can be mainly caused by the bending of the outer wall 16 of the first cooling medium channel 10. Figure 4 As shown in the elasto-caloric heat pump 100 presented in FIG. 1 , the angle α between the guide devices 14 can be selected to be relatively small, preferably less than 10°, further preferably less than 5°. Therefore, by the non-parallel arrangement of the guide devices 14, only a small part of the deformation of the elasto-caloric element 12 is applied.

[0074] Figure 5 Another first cooling medium channel 10 is shown. The second cooling medium channel 11 can be connected with the Figure 5 The first coolant channel 10 is constructed identically to that according to Figure 3 and Figure 4 Unlike the first coolant channel 10, the outer wall 16 or the contact region 31 of the outer wall 16 for thermal contact with the elastothermic element 12 is flat or planar. This means in particular that no additional deformation or only very small additional deformation is introduced into the elastothermic element 12 by the contact of the elastothermic element 12 with the outer wall 16.

[0075] Figure 6 A motor vehicle 200 with an elastocaloric heat pump 100 is shown.

[0076] Reference Numbers List

[0077] 100% elastic heat pump

[0078] 200 Motor Vehicles

[0079] 10 First cooling medium channel

[0080] 10a Hot aisle

[0081] 11 Second cooling medium channel

[0082] 11a Cold Aisle

[0083] 12 Elastic and thermal components

[0084] 13 Slide

[0085] 14 Guidance Device

[0086] 15 Driving mechanism

[0087] 16 outer wall

[0088] 17 outer wall

[0089] 18 elastic thermal flat belt

[0090] 19Heat transfer structure

[0091] 20 Ribs

[0092] 21 tracks

[0093] 22 Roller Track

[0094] 23 Roller

[0095] 24 transmission rod

[0096] 25 Force transmission element

[0097] 26 boards

[0098] 27 Roller

[0099] 28 Cam

[0100] 29 Actuator

[0101] 30 Spring

[0102] 31 Contact Area

[0103] 32 Insulation

Claims

1. An elasto-thermal heat pump (100), comprising at least one first cooling medium channel (10), at least one second cooling medium channel (11), at least one elasto-thermal element (12) and a driving mechanism (15), wherein: The at least one elastic thermal element (12) is arranged between a first cooling medium channel (10) and a second cooling medium channel (11) and is connected to a respective carriage (13) at the end side, wherein the carriage (13) is movably arranged on two guide devices (14) arranged non-parallel to each other, wherein the drive mechanism (15) is configured to cyclically move the carriage (13) along the guide devices (14) so ​​that the at least one elastic thermal element (12) is alternately in thermal contact with an outer wall (16) of the first cooling medium channel (10), in particular with a contact area (31) of the outer wall (16) of the first cooling medium channel (10), and in thermal contact with an outer wall (17) of the second cooling medium channel (11), in particular with a contact area (31) of the outer wall (17) of the second cooling medium channel (11).

2. The elastomeric heat pump (100) according to claim 1, characterized in that: A plurality of first cooling medium channels (10), a plurality of second cooling medium channels and a plurality of elasto-thermal elements (12) are provided, wherein a respective elasto-thermal element (12) is arranged between a respective first cooling medium channel (10) and a respective second cooling medium channel (11) and is connected to a respective one of the slides (13) at the end side.

3. The elasto-thermal heat pump (100) according to claim 1 or 2, characterized in that: The at least one thermally elastic element (12) is a thermally elastic strip, in particular a thermally elastic flat strip (18), and / or the at least one first coolant channel (10) and / or the at least one second coolant channel (11) have a heat transfer structure (19), in particular a rib (20).

4. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The at least one elasto-thermal element (12) is deformed, in particular stretched or compressed, in thermal contact with an outer wall (16) of the at least one first coolant channel (10).

5. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The at least one elasto-thermal element (12) is deformed at least partially when the carriage (13) moves on the guides (14) that are not arranged parallel to one another.

6. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The outer wall (16) of the first coolant channel (10), in particular the contact region (31) of the outer wall (16) of the first coolant channel (10), is preferably convexly curved so that the at least one elastic thermal element (12) is deformed by contact with the outer wall (16) of the first coolant channel (10).

7. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The outer wall (16) of the first coolant channel (10), preferably the contact region (31) of the outer wall (16) of the first coolant channel (10), is elastically deformable, in particular resiliently configured, and / or the first coolant channel (10) is resiliently supported.

8. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The guide device (14) is a rail (21), in particular a roller rail (22), and / or the carriage (13) is guided along the guide device (14) by means of rollers (23), and / or the drive mechanism (15) comprises a transmission rod (24), in particular a connecting rod or a push rod, wherein the carriage (13) is respectively rotatably or rigidly connected to one of the transmission rods (24), wherein the drive rod (24) is guided along the respective guide device (14).

9. The elastocaloric heat pump (100) according to any one of the preceding claims, characterized in that The guide device (14) and / or the transmission rod (24) are rotatably mounted so that an angle between the guide device (14) and / or the transmission rod (24) can be adjusted.

10. A motor vehicle (200) comprising the elastocaloric heat pump (100) according to any one of the preceding claims.

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