A temperature control device for new energy automobile battery

Abstract

The application relates to the technical field of automobile battery temperature control, in particular to a temperature control device for new energy automobile batteries. The device comprises a shell, the shell is used for storing cooling liquid, and a plurality of power batteries and a plurality of interval pieces are arranged in the shell, the interval pieces are provided with a plurality of middle flow channels and a plurality of groups of side flow channels and are used for allowing the cooling liquid to flow, symmetrical swing parts and equidistant abutting parts are arranged at positions close to all the side flow channels of the interval pieces, the abutting parts are fixedly connected with detection pieces, and the thermal expansion coefficient of the interval pieces is smaller than that of the detection pieces. The bimetallic strip structure composed of the abutting parts and the detection pieces can automatically perceive the temperature of the power batteries, the contact state between the abutting parts and the power batteries can be changed according to the temperature control requirement, the probability of local hot spots is reduced, the probability of local aging acceleration of the power batteries is reduced, and the risk of thermal runaway is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile battery temperature control, and particularly relates to a temperature control device for a new energy automobile battery. BACKGROUND

[0002] To cope with environmental and energy challenges, new energy vehicles are increasingly popular, however, the power battery of the new energy vehicle is extremely sensitive to temperature, when the temperature of the power battery is too high, it will accelerate the battery aging, cause long-term capacity decay, and greatly increase the safety risk of thermal runaway and spontaneous combustion, therefore, the power battery is usually provided with a temperature control device to keep the temperature of the power battery stable, the current mainstream battery temperature control device mainly includes air cooling and liquid cooling, liquid cooling can be further divided into indirect liquid cooling (cold plate type) and direct liquid cooling (immersion type), wherein the immersion type liquid cooling refers to completely immersing the battery cell in the insulating cooling liquid to realize direct heat exchange, compared with the cold plate type liquid cooling, the immersion type liquid cooling has higher heat exchange efficiency.

[0003] Although the immersion type liquid cooling has the advantage of high efficient heat exchange, it still faces the fundamental contradiction between the mechanical support demand of the battery cell and the maximum heat dissipation contact area. In order to ensure the structural strength of the module and the stability under driving vibration, the battery cell needs to be constrained by the fixed position support structure (such as support, partition plate), which will inevitably occupy the surface of the battery cell. The rigid design leads to: the physical barrier is formed at the close contact position of the support surface, which completely blocks the contact of the cooling liquid with the lower battery cell; because the blocked position is fixed, if it happens to be a high heat point area with uneven internal heat production of the battery cell, the heat dissipation path is blocked, and heat accumulation forms a significant high temperature "local hot spot"; in summary, although the immersion type liquid cooling has higher heat exchange efficiency, due to the local shielding, it still has the shortcomings of accelerated local aging of the battery, high risk of thermal runaway (fire, explosion). SUMMARY

[0004] The present application provides a temperature control device for a new energy automobile battery, to overcome the shortcomings of the existing immersion type battery temperature control device that the contact position between the support structure and the battery is fixed, which leads to accelerated local aging of the battery and increased risk of thermal runaway.

[0005] Technical solution: A temperature control device for new energy vehicle battery, comprising: a shell, the shell stores cooling liquid and is provided with a plurality of power batteries and a plurality of spacing pieces for providing support for adjacent power batteries, a part of all spacing pieces is used to separate two adjacent power batteries, the remaining spacing pieces are used to separate the power batteries from the shell, the spacing piece is provided with a plurality of middle flow channels and a plurality of groups of side flow channels and is used for cooling liquid flow, each group of side flow channels is symmetrically distributed, all groups of side flow channels on the same spacing piece are staggered with all middle flow channels, the spacing piece is provided with symmetrically and equidistantly distributed swing parts and equidistantly distributed abutting parts near all side flow channels, the number of swing parts is twice the number of abutting parts, the abutting part is located in the middle of two adjacent and symmetrically distributed swing parts, the shell and the power battery are respectively in contact with the adjacent abutting part, the abutting part is fixedly connected with a detection piece, the thermal expansion coefficient of the spacing piece is less than that of the detection piece, the detection piece is used to drive the abutting part to bend and lose contact with the power battery.

[0006] Further, the shell is fixedly connected with an accommodating plate and two symmetrically distributed partition plates, the partition plate is in contact with the accommodating plate, the accommodating plate is provided with an inlet flow channel and a discharge flow channel, the inlet flow channel and the discharge flow channel are in communication with an external cooling liquid circulation module, the inlet flow channel is located below the discharge flow channel, the accommodating plate and the two partition plates jointly divide the inner part of the shell into four spaces, the inlet flow channel and the discharge flow channel are respectively in communication with the lower part and the upper part of the four spaces, so that the cooling liquid flows from bottom to top in the shell, all power batteries and all spacing pieces are divided into four groups and are respectively located in the four spaces of the shell, and the partition plate is in contact with the adjacent abutting part.

[0007] Further, the spacing piece is provided with a plurality of bending grooves near the swing part, which facilitates the abutting part to drag the adjacent swing part to swing.

[0008] Further, the spacing piece is provided with a plurality of equidistantly distributed separation grooves near all side flow channels, which separate two adjacent swing parts and two adjacent abutting parts.

[0009] Further, the lower part of the detection piece is provided with a drainage part which is inclined from top to bottom to the inside of the spacing piece.

[0010] Further, the drainage part is composed of a plurality of equidistantly distributed metal sheets.

[0011] Further, four support frames are fixedly connected in the four spaces of the shell, and the support frames are used for supporting the power battery and the spacer and providing a flow path for the cooling liquid.

[0012] Further, the detection piece is fixedly connected with a limiting piece in the adjacent side flow channel through a support, a limiting hook slot is arranged on the swing part, the limiting hook slot is used for limiting the adjacent limiting piece, and symmetrical bending parts are arranged on the abutting part, the minimum distance of the two adjacent limiting hook slots on the same side flow channel in the horizontal plane is greater than the maximum length of the limiting piece in the horizontal plane.

[0013] Further, the limiting piece is an arc-shaped plate, and the support connecting the limiting piece and the adjacent detection piece is located at the middle part of the limiting piece and the detection piece.

[0014] Further, an elastic cylinder is fixedly connected in the middle flow channel, and the elastic cylinder is used for providing extrusion force for the spacer.

[0015] In summary, the present application has at least one of the following beneficial technical effects: the bimetallic strip structure composed of the abutting part and the detection piece can self-perceive the temperature of the power battery, and change the contact state of the abutting part and the power battery according to the temperature control requirement, thereby reducing the probability of local hot spots, and further reducing the probability of local aging acceleration of the power battery and the risk of thermal runaway.

[0016] The abutting part is divided into multiple segments in the vertical direction by the separation groove, so that the local abutting part can be heated and deformed alone, the abutting part bends inward and is misaligned with the adjacent abutting part, the cooling liquid can enter between the abutting part and the power battery and directly contact the power battery, and the accuracy of local cooling of the power battery is improved.

[0017] The flow of the cooling liquid is guided by the drainage part, so that after the abutting part loses contact with the power battery, the cooling liquid can enter between the abutting part and the power battery and exchange heat with the power battery more quickly, and when multiple abutting parts in the same column bend at the same time, the cooling liquid flowing in the side flow channel can enter between the abutting part and the power battery through the drainage part, thereby enhancing the local heat exchange efficiency of the power battery.

[0018] The limiting state of the limiting hook slot and the limiting piece is used to determine the support requirement of the power battery, when the power battery is stable, the limiting hook slot does not limit the limiting piece, at this time, the abutting part can change the contact state of the two according to the temperature of the power battery, when the power battery vibrates, the limiting hook slot limits the limiting piece, at this time, the limiting piece locks the detection piece and the abutting part, inhibits the abutting part from being heated and deformed, maintains the maximum support area, and preferentially provides support for the power battery. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 isometric view of the shell of the present application;

[0020] Figure 2 isometric view of the shell and the containing plate of the present application;

[0021] Figure 3 isometric view of the containing plate and the partition plate of the present application;

[0022] Figure 4 exploded view of the partition plate, the battery and the spacer of the present application;

[0023] Figure 5 isometric view of the containing plate and the support frame of the present application;

[0024] Figure 6 isometric view of the spacer and the partition groove of the present application;

[0025] Figure 7 top view of the spacer and the elastic cylinder of the present application;

[0026] Figure 8 isometric view of the detection member and the limiting member of the present application;

[0027] Figure 9 exploded view of the spacer, the detection member and the limiting member of the present application;

[0028] Figure 10 isometric view of the spacer after being extruded.

[0029] Reference signs in the drawings: 1 - shell, 2 - containing plate, 201 - liquid inlet channel, 202 - liquid outlet channel, 3 - partition plate, 4 - battery, 5 - spacer, 501 - middle channel, 502 - side channel, 503 - swing part, 504 - abutting part, 505 - easy-bending groove, 506 - partition groove, 6 - detection member, 601 - drainage part, 7 - support frame, 8 - limiting member, 801 - limiting hook groove, 802 - bending part, 9 - elastic cylinder. DETAILED DESCRIPTION

[0030] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Figure 1 The front view is taken as an example for illustration.

[0032] Embodiment 1: The embodiment provides a temperature control device for a new energy vehicle battery, so as to reduce the shielding of the existing immersed battery temperature control device to the power battery, thereby reducing the service life of the power battery and the probability of thermal runaway.

[0033] Referring to Figures 1 to 8 A temperature control device for a new energy vehicle power battery 4, comprising: a shell 1, a containing plate 2 and two symmetrical partition plates 3 are fixedly connected in the shell 1, the partition plates 3 are in contact with the middle part of the containing plate 2, the containing plate 2 is provided with a liquid inlet flow channel 201 and a liquid outlet flow channel 202, the liquid inlet flow channel 201 is located below the liquid outlet flow channel 202, the liquid inlet flow channel 201 and the liquid outlet flow channel 202 are respectively communicated with the liquid outlet and the liquid inlet of the external cooling liquid circulation module through the pipeline penetrating through the shell 1, the containing plate 2 and the two partition plates 3 together divide the inner part of the shell 1 into four spaces, the liquid inlet flow channel 201 and the liquid outlet flow channel 202 are respectively communicated with the lower part and the upper part of the four spaces, so that the cooling liquid flows from bottom to top in the shell 1; a plurality of power batteries 4 and a plurality of spacers 5 for providing support for the power batteries 4 are arranged in the shell 1, all the power batteries 4 and all the spacers 5 are divided into four groups and are respectively located in the four spaces of the shell 1, a part of all the spacers 5 is used to separate two adjacent power batteries 4, and the remaining spacers 5 are used to separate the shell 1 and the partition plates 3 from the power batteries 4.

[0034] Referring to Figures 6 to 9 The spacer 5 is made of high-elastic stainless steel, the spacer 5 is provided with a plurality of middle flow channels 501 and a plurality of groups of side flow channels 502, each group of side flow channels 502 is symmetrical in front and back, all the middle flow channels 501 and all the groups of side flow channels 502 on the same spacer 5 are equidistant and staggered in the left-right direction, and the specific number of the middle flow channels 501 and the side flow channels 502 is determined according to the length of the power battery 4 in the left-right direction; the middle flow channels 501 and the side flow channels 502 are used for the flow of the cooling liquid in the vertical direction, the positions close to all the side flow channels 502 on the spacer 5 are provided with swing parts 503 which are symmetrical in left and right and are equidistantly distributed in up and down, and abutting parts 504 which are equidistantly distributed in up and down, the number of the swing parts 503 is twice the number of the abutting parts 504, the abutting parts 504 are located in the middle part of the adjacent two swing parts 503, and the wall thickness of the abutting parts 504 is smaller than that of the remaining positions of the spacer 5, so as to facilitate the bending of the abutting parts 504; initially, the shell 1, the partition plates 3 and the power batteries 4 are respectively in contact with the adjacent abutting parts 504, the spacer 5 provides support for the power batteries 4 through the abutting parts 504, so that the relative position of the power batteries 4 and the shell 1 remains stable; the abutting parts 504 are fixedly connected with detection pieces 6, the detection pieces 6 are made of elastic metal material, the thermal expansion coefficient of the spacer 5 is smaller than that of the detection pieces 6, so that the detection pieces 6 and the abutting parts 504 are deformed differently under heat, and the abutting parts 504 and the detection pieces 6 are bent together.

[0035] The above arrangement can achieve that the bimetallic strip structure composed of the abutting portion 504 and the detection piece 6 can self-perceive the temperature of the power battery 4, and change the contact state of the abutting portion 504 with the power battery 4 according to the temperature control requirement, thereby reducing the probability of local hot spots and the probability of local accelerated aging of the power battery 4, and reducing the risk of thermal runaway.

[0036] Referring to Figures 7 to 9 , the position close to the root of the oscillating portion 503 (the root of the oscillating portion 503 refers to the position of the oscillating axis) of the spacer 5 is provided with a flexible groove 505, so that the thickness of the connection between the root of the oscillating portion 503 and the spacer 5 is reduced, and the adjacent oscillating portion 503 is facilitated to be swung by the abutting portion 504.

[0037] Referring to Figure 6 and Figure 8 , the position close to all the side flow channels 502 of the spacer 5 is provided with a plurality of equidistantly distributed separation grooves 506, the separation grooves 506 separate the adjacent two oscillating portions 503 and the adjacent two abutting portions 504, so that the abutting portion 504 at the local position can be deformed by heat alone, and the accuracy of local cooling of the power battery 4 is improved.

[0038] The above arrangement can achieve that the abutting portion 504 is divided into multiple segments in the vertical direction by the separation groove 506, so that the abutting portion 504 at the local position can be deformed by heat alone, the abutting portion 504 bends inward and is misaligned with the adjacent abutting portion 504, so that the cooling liquid can enter between the abutting portion 504 and the power battery 4 and directly contact the power battery 4, and the accuracy of local cooling of the power battery 4 is improved.

[0039] Referring to Figures 7 to 9 , the lower part of the detection piece 6 is provided with a flow guide portion 601, the flow guide portion 601 is composed of a plurality of equidistantly distributed metal sheets, so as to avoid affecting the bending of the detection piece 6, and the flow guide portion 601 is inclined from top to bottom to the inside of the spacer 5.

[0040] The above arrangement can achieve that the flow guide portion 601 guides the flow of the cooling liquid, so that after the abutting portion 504 loses contact with the power battery 4, the cooling liquid can enter between the abutting portion 504 and the power battery 4 and exchange heat with the power battery 4 more quickly, and when multiple abutting portions 504 in the same column bend at the same time, the cooling liquid flowing in the side flow channel 502 can enter between the abutting portion 504 and the power battery 4 through the guidance of the flow guide portion 601, thereby enhancing the local heat exchange efficiency of the power battery 4.

[0041] Referring to Figures 2 to 5Further comprising: four support frames 7, respectively fixedly connected in the four spaces of the shell 1, the support frames 7 are made of silicon carbide ceramic, and the support frames 7 are porous structures similar to sponges, that is, the inside of the support frames 7 has randomly distributed and interconnected holes, which enables the cooling liquid to still contact the power battery 4 while providing support for the power battery 4; the upper and lower sides and the side away from the containing plate 2 of the power battery 4 and the spacer 5 are in contact with the adjacent support frames 7 at the same time.

[0042] The above arrangement can achieve that the support frames 7 provide support for the small-area side of the power battery 4, while maintaining the stability of the power battery 4 and enabling the cooling liquid to fully contact the power battery 4, thereby improving the stability of the power battery 4.

[0043] The heat exchange process with the above arrangement is as follows: in actual use, the cooling liquid in the cooling liquid circulation module enters the liquid inlet flow channel 201, and then enters the lower part of the four spaces of the shell 1 (hereinafter, the power battery 4 in the right front space of the shell 1 will be taken as an example for description), the cooling liquid flows in the lower part of the support frame 7 and contacts the lower side of the power battery 4, at the same time, the cooling liquid moves upward in the right part of the support frame 7, between the middle flow channel 501, the side flow channel 502, the power battery 4 and the spacer 5, between the spacer 5 and the partition plate 3, between the spacer 5 and the shell 1, and finally enters the upper part of the support frame 7 and flows along the support frame 7 to the liquid outlet flow channel 202, and then returns to the cooling liquid circulation module through the liquid outlet flow channel 202; when the power battery 4 is working normally, the cooling liquid circulation module controls the flow rate of the cooling liquid in the shell 1, thereby maintaining the temperature stability of the power battery 4.

[0044] When the local heat of the power battery 4 is high (in this paragraph, the deformation of the abutting portion 504 on the lower side due to heat will be taken as an example for description, and the view angle of the top view will be taken as an example for description): Figure 7 When the local heat of the power battery 4 is high (in this paragraph, the deformation of the abutting portion 504 on the lower side due to heat will be taken as an example for description, and the view angle of the top view will be taken as an example for description): Figure 7 When the local heat of the power battery 4 is high (in this paragraph, the deformation of the abutting portion 504 on the lower side due to heat will be taken as an example for description, and the view angle of the top view will be taken as an example for description):

[0045] After the temperature of the power battery 4 is recovered, the abutting portion 504 is deformed again to restore the abutting portion 504, the swinging portion 503 and the detection member 6.

[0046] Embodiment 2: The embodiment provides a temperature control device for a new energy automobile battery, and on the basis of embodiment 1, a function of preferentially supporting the power battery is provided.

[0047] Referring to Figures 6 to 10 The detection member 6 is fixedly connected with a limiting member 8 in the adjacent side flow channel 502 through a support, and the swinging portion 503 is provided with a limiting hook groove 801 for limiting the adjacent limiting member 8 (for reference Figure 7 The minimum distance between the two limiting hook grooves 801 on the same side flow channel 502 in the left-right direction is greater than the maximum length of the limiting member 8 in the left-right direction, and the abutting portion 504 is provided with a bending portion 802 which is arc-shaped and used to provide a swinging allowance for the swinging portion 503 when the abutting portion 504 is not bent.

[0048] The above arrangement can realize that the support demand of the power battery 4 is determined through the limiting state of the limiting hook groove 801 and the limiting member 8. When the power battery 4 is stable, the limiting hook groove 801 does not limit the limiting member 8, and at this time, the abutting portion 504 can change the contact state according to the temperature change of the power battery 4. When the power battery 4 vibrates, the limiting hook groove 801 limits the limiting member 8, and at this time, the limiting member 8 locks the detection member 6 and the abutting portion 504, suppresses the deformation of the abutting portion 504 due to heat, maintains the maximum support area, and preferentially provides support for the power battery 4.

[0049] Referring to Figure 7 The limiting member 8 is an arc-shaped plate, and the support connecting the limiting member 8 and the adjacent detection member 6 is located in the middle part of the limiting member 8 and the detection member 6, so that when the limiting member 8 is bent by being pressed by the adjacent two swinging portions 503, the limiting member 8 can apply a pressing force to the detection member 6.

[0050] With the above setting, the working process is as follows: when the power battery 4 vibrates (for example, when the new energy vehicle drives on a bumpy road), the vibration of the power battery 4 causes the adjacent spacer 5 to be extruded, so that the thickness of the spacer 5 in the up-down direction is reduced, and in the process, the swing part 503 is extruded and bent from the root, and the bent part 802 is bent under pressure, and the deformation of the swing part 503 and the bent part 802 buffers the vibration of the power battery 4; in the process of swinging of the swing part 503, the minimum distance between the two adjacent swing parts 503 is reduced, the minimum distance between the two adjacent limiting hook grooves 801 in the left-right direction is reduced, and the distance between the limiting hook groove 801 and the adjacent limiting piece 8 is reduced, and finally the two contact, at this time the limiting hook groove 801 limits the limiting piece 8, and the two bent swing parts 503 extrude the left and right sides of the limiting piece 8 at the same time, so that the limiting piece 8 has a bending trend, and then the middle part of the limiting piece 8 applies extrusion force to the middle part of the detection piece 6 in the direction of the abutting part 504, so as to keep the abutting part 504 and the detection piece 6 flat, and then keep the abutting part 504 and the power battery 4 in contact.

[0051] When the power battery 4 is stable, the above steps are repeated in reverse, and the swing part 503 and the bent part 802 are restored under the action of their own elastic force, and the limiting hook groove 801 releases the limiting of the limiting piece 8, at this time the abutting part 504 and the detection piece 6 can deform by themselves.

[0052] Embodiment 3: The embodiment provides a temperature control device for a new energy vehicle battery, which enhances the stability of the power battery on the basis of embodiment 2.

[0053] Referring to Figure 7 and Figure 9 , the elastic cylinder 9 is fixed in the middle flow channel 501, and initially the elastic cylinder 9 is in a deformed and stored force state, so that the elastic cylinder 9 is used to provide extrusion force for the spacer 5.

[0054] The above setting can realize that the elastic cylinder 9 provides extrusion force for the spacer 5, so that the spacer 5 has a supporting force for the power battery 4, enhances the supporting effect of the spacer 5 on the power battery 4, and improves the stability of the power battery 4.

[0055] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A temperature control device for use in new energy vehicle batteries, characterized in that, include: A housing (1) contains coolant and houses multiple power batteries (4) and multiple spacers (5) for supporting adjacent power batteries (4). A portion of the spacers (5) separates two adjacent power batteries (4), while the remaining spacers (5) separate the power batteries (4) from the housing (1). Each spacer (5) has multiple central channels (501) and multiple sets of side channels (502) for coolant flow. Each set of side channels (502) consists of two symmetrically distributed sections. All sets of side channels (502) on the same spacer (5) are staggered with all the central channels (501). The spacers (5) are close to each other. All of the side channels (502) are provided with symmetrically and equidistantly distributed swing parts (503) and equidistantly distributed abutment parts (504). The number of swing parts (503) is twice the number of abutment parts (504). The abutment parts (504) are located in the middle of two adjacent and symmetrically distributed swing parts (503). The housing (1) and the power battery (4) are in contact with the adjacent abutment parts (504). The abutment parts (504) are fixedly connected with a detection element (6). The thermal expansion coefficient of the spacer (5) is less than that of the detection element (6). The detection element (6) is used to drive the abutment parts (504) to bend and cause the abutment parts (504) to lose contact with the power battery (4). Each spacer (5) is provided with a bendable groove (505) near the swing axis of the swing part (503) to facilitate the abutment part (504) to pull the adjacent swing part (503) to swing.

2. The temperature control device for new energy vehicle batteries according to claim 1, characterized in that, The housing (1) is internally fixed with a receiving plate (2) and two symmetrically distributed partitions (3). The partitions (3) are in contact with the receiving plate (2). The receiving plate (2) is provided with a liquid inlet channel (201) and a liquid outlet channel (202). Both the liquid inlet channel (201) and the liquid outlet channel (202) are connected to an external coolant circulation module. The liquid inlet channel (201) is located below the liquid outlet channel (202). The receiving plate (2) and the two partitions (3) are internally fixed with a receiving plate (2). The partition (3) divides the interior of the housing (1) into four spaces. The liquid inlet channel (201) and the liquid outlet channel (202) are respectively connected to the lower and upper parts of the four spaces, so that the coolant flows from bottom to top in the housing (1). All the power batteries (4) and all the spacers (5) are divided into four groups and located in the four spaces of the housing (1). The partition (3) is in contact with the adjacent abutment part (504).

3. A temperature control device for new energy vehicle batteries according to claim 2, characterized in that, The spacer (5) is provided with a plurality of equally spaced grooves (506) near all the side channels (502), the grooves (506) separating two adjacent swing parts (503) and two adjacent abutment parts (504).

4. A temperature control device for new energy vehicle batteries according to claim 3, characterized in that, The lower part of the detection element (6) is provided with a drainage part (601), which is inclined from top to bottom toward the inside of the spacer (5).

5. A temperature control device for new energy vehicle batteries according to claim 4, characterized in that, The drainage section (601) is composed of multiple metal sheets that are evenly distributed.

6. A temperature control device for new energy vehicle batteries according to claim 4, characterized in that it further includes... include: Four support frames (7) are fixedly connected to the four spaces of the housing (1) respectively. The support frames (7) are used to support the power battery (4) and the spacer (5) and provide a flow path for the coolant.

7. A temperature control device for new energy vehicle batteries according to claim 4, characterized in that, The detection component (6) is fixed to a limiting component (8) located in the adjacent side channel (502) by a bracket. The swing part (503) is provided with a limiting groove (801). The limiting groove (801) is used to limit the adjacent limiting component (8). The abutting part (504) is provided with symmetrically distributed curved parts (802). The minimum distance between two adjacent limiting grooves (801) on the same side channel (502) on the horizontal plane is greater than the maximum length of the limiting component (8) on the horizontal plane.

8. A temperature control device for new energy vehicle batteries according to claim 7, characterized in that, The limiting member (8) is an arc-shaped plate, and the bracket connecting the limiting member (8) and the adjacent detection member (6) is located in the middle of the limiting member (8) and the detection member (6).

9. A temperature control device for new energy vehicle batteries according to claim 6, characterized in that, An elastic cylinder (9) is fixedly connected inside the central channel (501), and the elastic cylinder (9) is used to provide extrusion force to the spacer (5).

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