Temperature control device for new energy automobile battery

Abstract

The invention relates to the technical field of automobile battery temperature control, in particular to a temperature control device for a new energy automobile battery. Comprising a shell, cooling liquid is stored in the shell, a plurality of power batteries and a plurality of distance pieces are arranged in the shell, and each distance piece is provided with a plurality of middle flow channels and a plurality of sets of side flow channels which are used for circulation of the cooling liquid; swing parts which are symmetrically distributed at equal intervals and abutting parts which are distributed at equal intervals are arranged at the positions, close to all the side runners on the spacer, of the spacer, the abutting parts are fixedly connected with detection parts, and the thermal expansion coefficient of the spacer is smaller than that of the detection parts. By means of the bimetallic strip structure composed of the abutting part and the detection piece, the temperature of the power battery can be sensed automatically, the contact state of the abutting part and the power battery is changed according to the temperature control requirement, the probability of occurrence of local hot spots is reduced, the probability of local aging acceleration of the power battery is further reduced, and the risk of thermal runaway is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile battery temperature control, and in particular to a temperature control device for a new energy automobile battery. Background Art

[0002] In response to environmental and energy challenges, new energy vehicles are becoming increasingly popular. However, the power batteries of new energy vehicles are extremely sensitive to temperature. When the temperature of the power battery is too high, it will accelerate battery aging, cause long-term capacity decay to worsen, and greatly increase the safety risks of thermal runaway and spontaneous combustion. Therefore, a temperature control device is usually installed inside the power battery to maintain the stability of the power battery temperature. The current mainstream battery temperature control devices mainly use air cooling and liquid cooling. Liquid cooling can be further divided into indirect liquid cooling (cold plate type) and direct liquid cooling (immersion type). Immersion liquid cooling refers to completely immersing the battery cell in insulating coolant to achieve direct heat exchange. Compared with cold plate liquid cooling, its heat exchange efficiency is higher.

[0003] While immersion liquid cooling offers the advantage of efficient heat exchange, it faces a fundamental conflict between the need for mechanical support for the battery cells and maximizing the heat dissipation contact area. To ensure module structural strength and stability under driving vibration, the battery cells must be restrained by fixed support structures (such as brackets and partitions), which inevitably occupy the cell surface. This rigid design results in a physical barrier where the support surfaces fit tightly together, completely preventing the coolant from contacting the underlying battery cells. Because the shielding is fixed in position, if it happens to be located in a high-heat point with uneven heat generation within the battery cell, the heat dissipation path is blocked, and heat accumulation forms a significant high-temperature "hot spot." In summary, while immersion liquid cooling offers higher heat exchange efficiency, the localized shielding still carries the disadvantages of accelerated localized battery aging and a high risk of thermal runaway (fire, explosion). Summary of the Invention

[0004] The present invention provides a temperature control device for new energy vehicle batteries to overcome the shortcomings of existing immersion-type battery temperature control devices, such as accelerated local battery aging and increased thermal runaway risk due to the fixed contact position between the support structure and the battery.

[0005] Technical solution: A temperature control device for a new energy vehicle battery, comprising: a shell, wherein coolant is stored in the shell and multiple power batteries and multiple spacers are provided, all of the spacers are used to separate two adjacent power batteries and the power battery from the shell and provide support for the power battery, the spacer is provided with multiple central flow channels and multiple groups of side flow channels and are all used to circulate coolant, each group of the side flow channels is symmetrically distributed, all groups of the side flow channels on the same spacer are staggered with all the central flow channels, the spacer is provided with symmetrical and equidistantly distributed swinging parts and equidistantly distributed abutting parts near all the side flow channels thereon, the number of the swinging parts is twice the number of the abutting parts, the shell and the power battery are respectively in contact with adjacent abutting parts, the abutting parts are fixed with detection parts, the thermal expansion coefficient of the spacer is smaller than the thermal expansion coefficient of the detection part, and the detection part is used to drive the abutting part to bend and make the abutting part lose contact with the power battery.

[0006] Furthermore, a containing plate and two symmetrically distributed partitions are fixedly connected in the shell, and the partitions are in contact with the containing plate. The containing plate is provided with a liquid inlet channel and a liquid discharge channel, and the liquid inlet channel and the liquid discharge channel are both connected to the external coolant circulation module. The liquid inlet channel is located below the liquid discharge channel. The containing plate and the two partitions together divide the interior of the shell into four spaces, and the liquid inlet channel and the liquid discharge channel are respectively connected to the lower and upper parts of the above four spaces, so that the coolant flows from bottom to top in the shell. All the power batteries and all the spacers are divided into four groups and are respectively located in the four spaces of the shell, and the partitions are in contact with the adjacent abutting parts.

[0007] Furthermore, the spacers are each provided with a bendable groove at a position close to the swinging portion, so as to facilitate the abutting portion to pull the adjacent swinging portion to swing.

[0008] Furthermore, the spacer is provided with a plurality of equally spaced grooves at positions close to all the side flow channels, and the grooves separate two adjacent swinging portions and two adjacent abutting portions.

[0009] Furthermore, a drainage portion is provided at the lower portion of the detection member, and the drainage portion is inclined from top to bottom toward the inner side of the spacer.

[0010] Furthermore, the drainage portion is composed of a plurality of metal sheets distributed at equal intervals.

[0011] Furthermore, it also includes: four support frames, which are respectively fixed to the four spaces of the shell, and the support frames are used to support the power battery and the spacer and provide a flow path for the coolant.

[0012] Furthermore, the detection part is fixedly connected to a limiting part located in the adjacent side flow channel through a bracket, and a limiting hook groove is provided on the swinging part, and the limiting hook groove is used to limit the adjacent limiting parts. The abutting part is provided with symmetrically distributed bending parts, and the minimum spacing between two adjacent limiting hook grooves on the same side flow channel on the horizontal plane is greater than the maximum length of the limiting part on the horizontal plane.

[0013] Furthermore, the limiting member is an arc-shaped plate, and the bracket connecting the limiting member and the adjacent detection member is located in the middle of the limiting member and the detection member.

[0014] Furthermore, an elastic tube is fixedly connected in the middle flow channel, and the elastic tube is used to provide extrusion force for the spacer.

[0015] To summarize, the present application includes at least one of the following beneficial technical effects: The present invention relies on a bimetallic strip structure composed of a contact portion and a detection member, enabling it to sense the temperature of the power battery by itself, and change the contact state between the contact portion and the power battery according to temperature control requirements, thereby reducing the probability of local hot spots, thereby reducing the probability of accelerated local aging of the power battery and reducing the risk of thermal runaway.

[0016] The abutment part is divided into multiple sections in the vertical direction by using partition grooves, so that the local abutment part can be deformed by heat independently, causing the abutment part to bend inward and be offset from the adjacent abutment part, so that the coolant can enter between the power battery and the abutment part and directly contact the power battery, thereby improving the accuracy of local cooling of the power battery.

[0017] The drainage portion is used to guide the flow of the coolant, so that after the abutment portion loses contact with the power battery, the coolant can enter between the abutment portion and the power battery more quickly and exchange heat with the power battery. When multiple abutment portions on the same row are bent at the same time, the drainage portion is used to guide the coolant flowing in the side flow channel to enter between the abutment portion and the power battery from between any two adjacent bent abutment portions, thereby enhancing the local heat exchange efficiency of the power battery.

[0018] The support requirements of the power battery are judged by the limiting status of the limiting hook groove and the limiting part. When the power battery is stable, the limiting hook groove does not limit the limiting part. 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 groove limits the limiting part. At this time, the limiting part locks the detection part and the abutting part, suppressing the deformation of the abutting part due to heat, maintaining the maximum support area, and providing support for the power battery first. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the housing and the receiving plate of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the receiving plate and the partition plate of the present invention; Figure 4 An exploded view of the separator, battery and spacer of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the receiving plate and the supporting frame of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the spacer and the partition groove of the present invention; Figure 7 A top view of the spacer and the elastic tube of the present invention; Figure 8 Schematic diagram of the three-dimensional structure of the detection member and the limiting member of the present invention; Figure 9 Exploded view of the spacer, detection member and limit member of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the spacer of the present invention after being extruded.

[0020] Reference numerals in the figure are: 1-shell, 2-containing plate, 201-liquid inlet channel, 202-liquid discharge channel, 3-partition, 4-battery, 5-spacer, 501-middle channel, 502-side channel, 503-swinging part, 504-abutting part, 505-bendable groove, 506-partition, 6-detection part, 601-drainage part, 7-support frame, 8-limiting part, 801-limiting hook groove, 802-bending part, 9-elastic cylinder. DETAILED DESCRIPTION

[0021] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings.

[0022] It should be noted that, unless otherwise specified, this paper Figure 1 The perspective of the main view is used as an example for explanation. Example 1

[0023] This embodiment provides a temperature control device for a new energy vehicle battery to reduce the probability of reduced power battery life and thermal runaway caused by existing immersion-type battery temperature control devices shielding the power battery.

[0024] See also Figures 1 to 8A temperature control device for a power battery 4 of a new energy vehicle comprises: a housing 1, a receiving plate 2 and two symmetrically distributed partitions 3 are fixedly connected to the housing 1, the partitions 3 are in contact with the middle of the receiving plate 2, the receiving plate 2 is provided with a liquid inlet channel 201 and a liquid discharge channel 202, the liquid inlet channel 201 is located below the liquid discharge channel 202, the liquid inlet channel 201 and the liquid discharge channel 202 are respectively connected to the liquid outlet and liquid inlet of the external coolant circulation module through a pipe passing through the housing 1, the receiving plate 2 and the two partitions 3 together hold the housing 1 The interior is divided into four spaces, and the liquid inlet channel 201 and the liquid discharge channel 202 are respectively connected to the lower and upper parts of the above four spaces, so that the coolant flows from bottom to top in the shell 1; a plurality of power batteries 4 and a plurality of spacers 5 are arranged in the shell 1, and 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, and all the spacers 5 are used to separate two adjacent power batteries 4, the power battery 4 from the shell 1, and the power battery 4 from the partition 3, and provide support for the power battery 4.

[0025] See also Figures 6 to 9 , the spacer 5 is made of highly elastic stainless steel. The spacer 5 is provided with a plurality of middle flow channels 501 and a plurality of side flow channels 502. In each group of side flow channels 502, there are two symmetrically distributed front-to-back. All the middle flow channels 501 and all groups of side flow channels 502 on the same spacer 5 are equidistant and staggered in the left-right direction. 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 circulation of the coolant in the vertical direction. The spacer 5 is provided with a swing portion 503 symmetrically distributed up and down and equidistantly distributed near all the side flow channels 502 thereon, and an abutment portion 504 symmetrically distributed up and down. The number of the swing portion 503 is The number of abutment parts 504 is twice as large, and the abutment part 504 is located in the middle of two adjacent swinging parts 503, and the wall thickness of the abutment part 504 is smaller than the wall thickness of the rest of the spacer 5, so that the abutment part 504 is easy to bend; initially, the shell 1, the partition 3 and the power battery 4 are in contact with the adjacent abutment parts 504 respectively, and the spacer 5 provides support for the power battery 4 through the abutment parts 504, so that the relative position of the power battery 4 and the shell 1 remains stable; the abutment part 504 is fixed with a detection part 6, and the detection part 6 is made of elastic metal. The thermal expansion coefficient of the spacer 5 is smaller than the thermal expansion coefficient of the detection part 6, so that the detection part 6 and the abutment part 504 have different degrees of thermal deformation, and the abutment part 504 and the detection part 6 are bent together.

[0026] The above arrangement enables the bimetallic strip structure composed of the abutting portion 504 and the detecting member 6 to sense the temperature of the power battery 4 on its own, and to change the contact state between the abutting portion 504 and the power battery 4 according to the temperature control requirements, thereby reducing the probability of local hot spots, reducing the probability of accelerated local aging of the power battery 4, and reducing the risk of thermal runaway.

[0027] See also Figures 7 to 9 The spacer 5 is provided with a bendable groove 505 at a position close to the root of the swinging part 503 (the root of the swinging part 503 refers to the position of its swinging axis), so that the thickness of the connection between the root of the swinging part 503 and the spacer 5 is reduced, making it easier for the abutting part 504 to pull the adjacent swinging part 503 to swing.

[0028] See also Figure 6 and Figure 8 The spacer 5 is provided with multiple equally distributed partition grooves 506 near all side flow channels 502. The partition grooves 506 separate two adjacent swinging parts 503 and two adjacent abutting parts 504, so that the abutting parts 504 at local positions can be heated and deformed separately, thereby improving the accuracy of local cooling of the power battery 4.

[0029] The above arrangement can be achieved by using the partition groove 506 to divide the abutting portion 504 into multiple sections in the vertical direction, so that the local abutting portion 504 can be heated and deformed independently, so that the abutting portion 504 bends inward and is misaligned with the adjacent abutting portion 504. In this way, the coolant can enter between the power battery 4 and the abutting portion 504 and directly contact the power battery 4, thereby improving the accuracy of local cooling of the power battery 4.

[0030] See also Figures 7 to 9 A drainage portion 601 is provided at the lower part of the detection member 6. The drainage portion 601 is composed of multiple metal sheets distributed at equal intervals to avoid affecting the bending of the detection member 6. The drainage portion 601 is inclined from top to bottom toward the inner side of the spacer 5.

[0031] The above arrangement can achieve the goal of using the drainage portion 601 to guide the flow of the coolant, so that after the abutment portion 504 loses contact with the power battery 4, the coolant can enter between the abutment portion 504 and the power battery 4 more quickly and exchange heat with the power battery 4, and when multiple abutment portions 504 are bent at the same time in the same row, through the guidance of the drainage portion 601, the coolant flowing in the side channel 502 can enter between the abutment portion 504 and the power battery 4 from between any two adjacent bent abutment portions 504, thereby enhancing the local heat exchange efficiency of the power battery 4.

[0032] See also Figures 2 to 5 , and also includes: four support frames 7, which are respectively fixed to the four spaces of the shell 1. The support frames 7 are made of silicon carbide ceramics and have a porous structure similar to that of a sponge. That is, there are randomly distributed and interconnected holes inside the support frames 7, which allows the coolant to still pass through the support frames 7 and contact the power batteries 4 while providing support for the power batteries 4; the upper and lower sides of the power batteries 4 and the spacer 5 and the side away from the accommodating plate 2 are in contact with the adjacent support frames 7 at the same time.

[0033] The above arrangement can be achieved by relying on the support frame 7 to provide support for the side surface of the power battery 4 with a small area, thereby maintaining the stability of the power battery 4 while allowing the coolant to fully contact the power battery 4, thereby improving the stability of the power battery 4.

[0034] The heat exchange process using the above-mentioned setting: in actual use, the coolant in the coolant circulation module enters the liquid inlet channel 201 and enters the lower part of the four spaces on the shell 1 (the power battery 4 in the right front space of the shell 1 is used as an example for explanation later), the coolant flows in the lower part of the support frame 7 and contacts the lower side of the power battery 4, and at the same time, the coolant moves upward in the middle channel 501, the side channel 502, between the spacer 5 and the power battery 4, between the partition 3 and the spacer 5, between the shell 1 and the spacer 5, and the right part of the support frame 7, and finally the coolant enters the upper part of the support frame 7 and flows along the support frame 7 to the drain channel 202, and returns to the coolant circulation module through the drain channel 202. When the power battery 4 is working normally, the coolant circulation module controls the flow rate of the coolant in the shell 1, thereby keeping the temperature of the power battery 4 stable.

[0035] When the power battery 4 is locally hot (this paragraph Figure 7 The deformation of the lower contact portion 504 due to heat is used as an example to illustrate the Figure 7 Taking the perspective of the top view as an example for description): Heat is transferred to the adjacent abutting portion 504 and the detection member 6, causing the two to undergo thermal expansion. At the same time, since the thermal expansion rate of the abutting portion 504 is lower than the thermal expansion rate of the detection member 6, the middle parts of the abutting portion 504 and the detection member 6 move upward, so that the abutting portion 504 and the detection member 6 form an upward convex arc. At this time, the distance between the left and right sides of the abutting portion 504 is reduced, and the two adjacent swinging portions 503 are pulled to swing together, so that the swinging portion 503 is bent from its root, and then the abutting portion 504 loses contact with the power battery 4. At this time, the coolant flowing in the side channel 502 passes through the partition 506 under the action of the adjacent drainage portion 601 and enters between the abutting portion 504 and the power battery 4, and performs heat exchange with the power battery 4, thereby achieving the purpose of self-controlling the contact state of the abutting portion 504 and the power battery 4.

[0036] After the temperature of the power battery 4 is restored, the above-mentioned steps of deforming the abutting portion 504 are repeated in reverse, so that the abutting portion 504 , the swinging portion 503 and the detection member 6 are restored to their original state. Example 2

[0037] This embodiment provides a temperature control device for a new energy vehicle battery. Based on the first embodiment, it provides a function of preferentially supporting the power battery.

[0038] See also Figures 6 to 10The detection member 6 is fixedly connected to the limiting member 8 in the adjacent side flow channel 502 through the bracket. The swing portion 503 is provided with a limiting hook groove 801, which is used to limit the adjacent limiting member 8. (Refer to Figure 7 ) The minimum distance between two adjacent limiting hook grooves 801 on the same side flow channel 502 in the left and right directions is greater than the maximum length of the limiting member 8 in the left and right directions. A bending portion 802 is provided on the abutting portion 504. The bending portion 802 is arc-shaped and is used to allow the swinging portion 503 to have room to swing when the abutting portion 504 is not bent.

[0039] The above setting can be realized by judging the support requirements of the power battery 4 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. At this time, the abutment 504 can change the contact state of the two according to the temperature of the power battery 4. When the power battery 4 vibrates, the limiting hook groove 801 limits the limiting member 8. At this time, the limiting member 8 locks the detection member 6 and the abutment 504, suppresses the deformation of the abutment 504 due to heat, maintains the maximum support area, and provides support for the power battery 4 first.

[0040] See also Figure 7 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, so that the limiting member 8 can apply an extrusion force to the detection member 6 when it is squeezed and bent by the two adjacent swinging parts 503.

[0041] The working process of the above arrangement is as follows: when the power battery 4 vibrates (such as when a new energy vehicle is traveling on a bumpy road), the vibration of the power battery 4 squeezes the adjacent spacers 5, causing the thickness of the spacers 5 in the vertical direction to decrease. In this process, the swing portion 503 is squeezed and bent from the root, and the bent portion 802 is compressed and bent, relying on the deformation of the swing portion 503 and the bent portion 802 to buffer the vibration of the power battery 4; in the process of the swing portion 503 swinging, the minimum distance between the two adjacent swing portions 503 is reduced, and the two adjacent limit The minimum spacing of the hook groove 801 in the left and right directions is reduced, and at the same time, the spacing between the limiting hook groove 801 and the adjacent limiting member 8 is reduced, and finally the two contact. At this time, the limiting hook groove 801 limits the limiting member 8, and at the same time, the two bent swinging parts 503 squeeze the left and right sides of the limiting member 8, so that the limiting member 8 has a tendency to bend, and then the middle part of the limiting member 8 applies an extrusion force close to the abutment part 504 to the middle part of the detection member 6, maintaining the straight state of the abutment part 504 and the detection member 6, and thus maintaining the contact area between the abutment part 504 and the power battery 4.

[0042] When the power battery 4 is stable, the above steps are repeated in reverse. The swing portion 503 and the curved portion 802 recover under their own elastic force. At the same time, the limiting hook groove 801 releases the limit on the limiting member 8. At this time, the abutting portion 504 and the detection member 6 can deform on their own. Example 3

[0043] This embodiment provides a temperature control device for a new energy vehicle battery, which enhances the stability of the power battery based on the second embodiment.

[0044] See also Figure 7 and Figure 9 An elastic tube 9 is fixedly connected to the middle flow channel 501 . Initially, the elastic tube 9 is in a state of deformation and force storage, so that the elastic tube 9 is used to provide extrusion force for the spacer 5 .

[0045] The above arrangement can achieve, by relying on the elastic tube 9 to provide extrusion force for the spacer 5, so that the spacer 5 has a supporting force for the base of the power battery 4, thereby enhancing the supporting effect of the spacer 5 on the power battery 4 and improving the stability of the power battery 4.

[0046] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A temperature control device for a new energy vehicle battery, characterized in that: include: A shell (1) is provided with a coolant and a plurality of power batteries (4) and a plurality of spacers (5), all of which are used to separate two adjacent power batteries (4) and the power battery (4) from the shell (1) and provide support for the power battery (4), the spacer (5) is provided with a plurality of middle flow channels (501) and a plurality of side flow channels (502) and are all used to circulate the coolant, each group of the side flow channels (502) is symmetrically distributed, all groups of the side flow channels (502) and all the middle flow channels (501) on the same spacer (5) are staggered, and the spacers (5) are arranged in a plurality of middle flow channels (501) and a plurality of side flow channels (502) are arranged in a symmetrical manner. The member (5) is provided with symmetrical and equidistantly distributed swinging portions (503) and equidistantly distributed abutting portions (504) at positions close to all the side flow channels (502) thereon, the number of the swinging portions (503) is twice the number of the abutting portions (504), the housing (1) and the power battery (4) are in contact with adjacent abutting portions (504), the abutting portions (504) are fixed with a detection member (6), the thermal expansion coefficient of the spacer (5) is smaller than the thermal expansion coefficient of the detection member (6), and the detection member (6) is used to drive the abutting portion (504) to bend and cause the abutting portion (504) to lose contact with the power battery (4).

2. A temperature control device for a new energy vehicle battery according to claim 1, characterized in that: A receiving plate (2) and two symmetrically distributed partitions (3) are fixedly connected to the shell (1), and 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 discharge channel (202). Both the liquid inlet channel (201) and the liquid discharge channel (202) are connected to an external coolant circulation module. The liquid inlet channel (201) is located below the liquid discharge channel (202). The receiving plate (2) and the two partitions (3) are in contact with the receiving plate (2). The partitions (3) together divide the interior of the shell (1) into four spaces. The liquid inlet channel (201) and the liquid discharge channel (202) are respectively connected to the lower part and the upper part of the four spaces, so that the coolant flows from bottom to top 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). The partitions (3) are in contact with the adjacent abutment portions (504).

3. A temperature control device for a new energy vehicle battery according to claim 2, characterized in that: The spacers (5) are each provided with a bendable groove (505) at a position close to the swing portion (503), so as to facilitate the abutting portion (504) to pull the adjacent swing portion (503) to swing.

4. A temperature control device for a new energy vehicle battery according to claim 3, characterized in that: The spacer (5) is provided with a plurality of equally spaced partition grooves (506) at positions close to all the side flow channels (502), and the partition grooves (506) separate two adjacent swinging portions (503) and two adjacent abutting portions (504).

5. A temperature control device for a new energy vehicle battery according to claim 4, characterized in that: A drainage portion (601) is provided at the lower portion of the detection member (6), and the drainage portion (601) is inclined from top to bottom toward the inner side of the spacer (5).

6. A temperature control device for a new energy vehicle battery according to claim 5, characterized in that: The drainage portion (601) is composed of a plurality of metal sheets distributed at equal intervals.

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

8. The temperature control device for a new energy vehicle battery according to claim 5, characterized in that: The detection member (6) is fixedly connected to a limiting member (8) located in an adjacent side flow channel (502) through a bracket, a limiting hook groove (801) is provided on the swinging portion (503), and the limiting hook groove (801) is used to limit the adjacent limiting member (8), and the abutting portion (504) is provided with symmetrically distributed bending portions (802), and the minimum spacing between two adjacent limiting hook grooves (801) on the same side flow channel (502) on the horizontal plane is greater than the maximum length of the limiting member (8) on the horizontal plane.

9. The temperature control device for a new energy vehicle battery according to claim 8, characterized in that: The limiting member (8) is an arc-shaped plate, and a 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).

10. The temperature control device for a new energy vehicle battery according to claim 7, characterized in that: An elastic tube (9) is fixedly connected in the middle flow channel (501), and the elastic tube (9) is used to provide extrusion force for the spacer (5).

Images