Battery temperature adjusting assembly, battery device and vehicle

Abstract

The utility model discloses a battery temperature adjustment assembly, battery device and vehicle, including first heat exchange plate and a plurality of second heat exchange plate, the first heat exchange plate is used for attaching and contacting with the bottom surface of a plurality of battery cells to realize heat conduction, the plurality of second heat exchange plates are in heat conduction connection with the same side of the first heat exchange plate, and the multiple second heat exchange plates are arranged at intervals in the set direction, the interval space between every two adjacent second heat exchange plates is used for containing a single battery, and the second heat exchange plates are used for making contact with the side faces of the single batteries in an attached mode to achieve heat conduction. The battery temperature adjusting assembly disclosed by the utility model is high in cooling and heat exchange efficiency, the service life of the battery is prolonged, and the use safety is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery temperature regulation, in particular to a battery temperature regulation component, a battery device and a vehicle. Background Art

[0002] In recent years, with the rapid development of the new energy vehicle industry, as the power source of automobiles, power battery technology has also been continuously developing and improving. As the power and energy density of power batteries are getting higher and higher, the heat generated by power batteries during operation is also increasing. Therefore, the heat dissipation requirements for batteries are also getting higher and higher. However, the battery cooling system in the existing technology still has problems such as low cooling and heat exchange efficiency, short service life, and poor safety. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model proposes a battery temperature control component, which has high cooling and heat exchange efficiency, prolongs the service life of the battery, and improves the safety of use.

[0005] The embodiment of the utility model further provides a battery device including the battery temperature regulating component.

[0006] The embodiment of the utility model further provides a vehicle including the battery device.

[0007] The battery temperature regulating assembly of the utility model embodiment includes:

[0008] A first heat exchange plate, the first heat exchange plate being used to be in contact with the bottom surfaces of the plurality of battery cells to achieve heat conduction;

[0009] Multiple second heat exchange plates are thermally connected to the same side of the first heat exchange plate, and multiple second heat exchange plates are arranged at intervals along a set direction. The interval space between two adjacent second heat exchange plates is used to place battery cells. The second heat exchange plates are used to fit in contact with the side of the battery cell to achieve heat conduction.

[0010] In some embodiments, a surface of the second heat exchange plate orthogonal to the set direction is in close contact with a side surface of the battery cell orthogonal to the set direction.

[0011] In some embodiments, a filler is disposed between the second heat exchange plate and the first heat exchange plate, and the filler is used to achieve heat conduction between the second heat exchange plate and the first heat exchange plate.

[0012] In some embodiments, the filler is in close contact with two adjacent battery cells in the set direction.

[0013] In some embodiments, the filler is provided with a first groove, and the first groove is used for the corner of the battery cell to be embedded;

[0014] And / or, the filler is provided with a second groove, and the second groove is used for the second heat exchange plate to be embedded.

[0015] In some embodiments, the width dimension of the filler in the set direction is not less than the width dimension of the second heat exchange plate in the set direction.

[0016] In some embodiments, the filler is elastically deformable.

[0017] In some embodiments, the first heat exchange plate is provided with an opening, and the opening is used to expose the explosion-proof valve of the battery cell.

[0018] In some embodiments, a plurality of heat insulating members are included, and the plurality of heat insulating members are respectively disposed between two adjacent battery cells located in the same spacing space, and the heat insulating members are used to suppress heat transfer between two adjacent battery cells.

[0019] In some embodiments, the first heat exchange plate is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet and the first liquid outlet are arranged diagonally on the first heat exchange plate.

[0020] In some embodiments, it includes a liquid inlet pipe and a liquid discharge pipe, which are arranged on the same side of the plurality of second heat exchange plates and are connected to the plurality of second heat exchange plates. The liquid inlet pipe is used to introduce a temperature control medium into the plurality of second heat exchange plates and is provided with a second liquid inlet. The liquid discharge pipe is used to discharge the temperature control medium in the plurality of second heat exchange plates and is provided with a second liquid outlet.

[0021] The battery device of the embodiment of the utility model comprises a plurality of battery cells and a battery temperature regulating assembly as described in any of the above embodiments, and the plurality of battery cells are all assembled in the spacing space and in close contact with the second heat exchange plate.

[0022] The vehicle of the embodiment of the utility model includes the battery device as described in any of the above embodiments.

[0023] Beneficial effects: The battery temperature control assembly, battery device and vehicle of the embodiments of the utility model have high cooling and heat exchange efficiency of the battery temperature control assembly, so that the battery cells can operate within a suitable temperature range, avoiding the situation where the operating environment temperature is too high or too low, thereby extending the service life of the battery and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is an exploded schematic diagram of a battery device according to an embodiment of the utility model.

[0025] Figure 2 yes Figure 1 Schematic diagram of the overall assembly of the battery device.

[0026] Figure 3 It is a schematic diagram of heat dissipation of a single battery cell according to an embodiment of the utility model.

[0027] Figure 4 It is a schematic diagram of the arrangement of the filler in the embodiment of the utility model.

[0028] Figure 5 It is a schematic diagram of the first heat exchange plate of an embodiment of the utility model.

[0029] Figure 6 It is a schematic diagram of the arrangement of the openings of the first heat exchange plate in an embodiment of the utility model.

[0030] Figure 7 It is a schematic diagram of the arrangement of multiple second heat exchange plates, liquid inlet pipes and liquid discharge pipes in an embodiment of the utility model.

[0031] Reference numerals:

[0032] 1-first heat exchange plate; 11-opening; 12-first liquid inlet; 13-first liquid outlet;

[0033] 2- second heat exchange plate;

[0034] 3- Interval space;

[0035] 4-battery monomer; 41-first side surface; 42-second side surface; 43-bottom surface; 44-explosion-proof valve;

[0036] 5- Thermal insulation;

[0037] 6-filler; 61-first groove; 62-second groove;

[0038] 7-liquid inlet pipe; 71-second liquid inlet;

[0039] 8-discharge pipe; 81-second liquid outlet. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0041] like Figure 1 As shown, the battery temperature regulating assembly of the embodiment of the utility model includes a first heat exchange plate 1 and a plurality of second heat exchange plates 2.

[0042] The first heat exchange plate 1 is used to contact with the bottom surface 43 of the plurality of battery cells 4 to achieve heat conduction. Figure 1 and Figure 2 As shown, the first heat exchange plate 1 can be generally rectangular, and the first heat exchange plate 1 can be arranged horizontally. A channel is provided in the first heat exchange plate 1, and the channel can be extended back and forth in the first heat exchange plate 1, and the channel is used for circulating the temperature regulating medium in the first heat exchange plate 1, wherein the temperature regulating medium can be a liquid such as water.

[0043] During assembly, multiple battery cells 4 can be placed directly on the first heat exchange plate 1, and the bottom surface 43 of each battery cell 4 (the surface opposite to the electrode of the battery cell 4) can be in contact with the first heat exchange plate 1. In this way, heat exchange between the first heat exchange plate 1 and the battery cell 4 can be achieved, thereby playing a role in regulating the temperature of the battery cell 4 in operation, avoiding the situation where the temperature of the battery cell 4 is too high or too low.

[0044] Multiple second heat exchange plates 2 are thermally connected to the same side of the first heat exchange plate 1, and the multiple second heat exchange plates 2 are arranged at intervals along a set direction. The interval space 3 between two adjacent second heat exchange plates 2 is used to place the battery cell 4, and the second heat exchange plates 2 are used to fit and contact the side of the battery cell 4 to achieve heat conduction.

[0045] For example, Figure 1 and Figure 2 As shown, the second heat exchange plate 2 may be a rectangular plate, and a channel for the temperature regulating medium to flow is also provided in the second heat exchange plate 2 , and the channel may also bend back and forth and extend in the second heat exchange plate 2 .

[0046] There may be four second heat exchange plates 2. In some other embodiments, there may be three, five, six, etc. second heat exchange plates 2. The four second heat exchange plates 2 may be arranged in parallel and spaced apart along the left-right direction (set direction), and a space 3 is formed between two adjacent second heat exchange plates 2. During assembly, a plurality of battery cells 4 may be assembled in each space 3, and the plurality of battery cells 4 in each space 3 may be stacked and arranged along the front-back direction.

[0047] like Figure 3 As shown, each battery cell 4 can be generally in the shape of a rectangular parallelepiped, and the above-mentioned setting direction can be consistent with the length direction of the battery cell 4, that is, the length direction of each battery cell 4 can also be the left-right direction, and each battery cell 4 includes a first side surface 41 and a second side surface 42 arranged relatively in the left-right direction, wherein the first side surface 41 is specifically the right side surface of the battery cell 4, and the second side surface 42 is specifically the left side surface of the battery cell 4, and the first side surface 41 and the second side surface 42 are both non-large surfaces (surfaces with larger areas) of the battery cell 4. Specifically, the large surface of the battery cell 4 can be regarded as Figure 3 The front and rear sides of the battery cell 4 in FIG.

[0048] When the battery cells 4 are assembled in the spacing space 3, the first side surface 41 of each battery cell 4 can be in contact with the second heat exchange plate 2 on the right side, and the second side surface 42 of each battery cell 4 can be in contact with the second heat exchange plate 2 on the left side. Thus, each battery cell 4 is sandwiched between two second heat exchange plates 2, so that heat exchange between the battery cell 4 and the second heat exchange plate 2 can be achieved. This can also play a role in regulating the temperature of the battery cell 4 during operation, avoiding the situation where the temperature of the battery cell 4 is too high or too low.

[0049] In the battery temperature control assembly of the embodiment of the utility model, each second heat exchange plate 2 is thermally connected to the first heat exchange plate 1, so that the heat on each heat exchange plate can be quickly transferred to other heat exchange plates. When the local temperature of the battery pack is too high, the heat can be quickly evacuated and dissipated, thereby improving the heat dissipation efficiency.

[0050] Secondly, if Figure 3 As shown, each single battery cell 4 can perform heat exchange and temperature adjustment through the first side surface 41, the second side surface 42 and the bottom surface 43, thereby realizing three-sided cooling of each battery cell 4. Compared with the heat conduction between two adjacent battery cells 4 in the prior art, the internal heat conduction system of a single battery cell 4 is higher, thereby improving the overall heat exchange efficiency, so that the battery cell 4 can operate within a suitable temperature range, avoiding the operating environment temperature being too high or too low, thereby extending the service life of the battery and improving the safety of use.

[0051] In some embodiments, the surface of the second heat exchange plate 2 perpendicular to the set direction is in contact with the side surface of the battery cell 4 perpendicular to the set direction. Figure 1 and Figure 2 As shown, the set direction can be the left-right direction, and the left side or right side of the second heat exchange plate 2 perpendicular to the left-right direction is used to fit with the surface of the battery cell 4, and the left side or right side of the battery cell 4 perpendicular to the left-right direction is used to fit with the surface of the corresponding second heat exchange plate 2. As a result, the heat exchange surface of the second heat exchange plate 2 and the battery cell 4 is perpendicular to the heat transfer and heat exchange direction of the single battery cell 4, which is conducive to improving the heat exchange efficiency.

[0052] In some embodiments, a filler 6 is disposed between the second heat exchange plate 2 and the first heat exchange plate 1 , and the filler 6 is used to achieve heat conduction between the second heat exchange plate 2 and the first heat exchange plate 1 .

[0053] For example, Figure 4As shown, the second heat exchange plate 2 is arranged above the first heat exchange plate 1, and a certain gap is left between the second heat exchange plate 2 and the first heat exchange plate 1. When the second heat exchange plate 2 and the first heat exchange plate 1 are assembled, the filler 6 can be filled in the gap between the second heat exchange plate 2 and the first heat exchange plate 1, so that the second heat exchange plate 2 and the first heat exchange plate 1 can be connected.

[0054] The filler 6 has good thermal conductivity, thereby achieving heat conduction between the first heat exchange plate 1 and the second heat exchange plate 2, so that the heat of the battery cell 4 can be passively balanced to each heat exchange plate, which is conducive to the rapid dissipation of local heat. In addition, the filler 6 can also play a supporting role, thereby ensuring the compactness and stability of the assembly structure of the second heat exchange plate 2 and the first heat exchange plate 1.

[0055] In some embodiments, the filler 6 is in close contact with two battery cells 4 adjacent to each other in a set direction. Figure 4 As shown, the set direction can be the left-right direction, the left side of the filler 6 can be in contact with or connected to the left battery cell 4, and the right side of the filler 6 can be in contact with or connected to the right battery cell 4.

[0056] Therefore, the filler 6 can also be supported between the two battery cells 4, so as to play the role of separating and positioning the two battery cells 4, avoiding the situation where the two adjacent battery cells 4 are too close to each other and squeeze the second heat exchange plate 2, thereby avoiding the situation where the second heat exchange plate 2 is squeezed by the two battery cells 4 and causing a large deformation, thereby avoiding the problem of flattening the internal channel for the circulation of the temperature regulating medium, resulting in the inability to circulate and exchange heat.

[0057] In some embodiments, the filler 6 is provided with a first groove 61, and the first groove 61 is used for the corner of the battery cell 4 to be embedded. Figure 4 As shown, a first groove 61 can be provided on both the left and right sides of the filler 6. The first groove 61 can be roughly a quarter arc groove. The arc corners of the battery cell 4 on the left side of the filler 6 can be embedded in the first groove 61 on the left side of the filler 6, and the arc corners of the battery cell 4 on the right side of the filler 6 can be embedded in the first groove 61 on the right side of the filler 6.

[0058] Therefore, on the one hand, the restraint and positioning effect between the filler 6 and the battery cell 4 can be enhanced, and on the other hand, the fitting contact area between the filler 6 and the battery cell 4 can be increased, which is beneficial to improving the overall heat exchange efficiency.

[0059] In some embodiments, the filler 6 is provided with a second groove 62, and the second groove 62 is used for the second heat exchange plate 2 to be embedded. Figure 4As shown, the second groove 62 may be an arc groove, and the second groove 62 may be arranged on the top side of the filler 6 , and the notch of the second groove 62 may be arranged upward. The bottom side edge of the second heat exchange plate 2 may be embedded in the second groove 62 .

[0060] Therefore, on the one hand, the restraining and positioning effect between the filler 6 and the second heat exchange plate 2 can be enhanced, and on the other hand, the fitting contact area between the filler 6 and the second heat exchange plate 2 can be increased, which is beneficial to improving the overall heat exchange efficiency.

[0061] In some embodiments, the width dimension of the filler 6 in the set direction is not less than the width dimension of the second heat exchange plate 2 in the set direction. Figure 4 As shown, the width dimension of the filler 6 can be dimension M1, and the width dimension of the second heat exchange plate 2 can be dimension M2, and dimension M1 is greater than or equal to dimension M2. Therefore, under normal conditions, since the filler 6 is supported between the two battery cells 4, the second heat exchange plate 2 will not be squeezed by the two battery cells 4, thereby ensuring the stability of the shape of the second heat exchange plate 2 and facilitating assembly and arrangement.

[0062] In some embodiments, the filler 6 can be elastically deformed. For example, the filler 6 can be a heat-conducting structural adhesive, thereby playing a certain buffering role and avoiding rigid contact between battery cells 4 and battery cells 4, and between the second heat exchange plate 2 and the first heat exchange plate 1.

[0063] In some embodiments, the first heat exchange plate 1 is provided with an opening 11, and the opening 11 is used to expose the explosion-proof valve 44 of the battery cell 4. Figure 5 As shown, the first heat exchange plate 1 may be provided with three openings 11. In some other embodiments, the openings 11 may be provided with four, five, etc. The three openings 11 may be arranged in parallel and spaced apart in the left-right direction, and each opening 11 may extend in the front-back direction.

[0064] When the battery cells 4 are installed in each compartment 3 , the explosion-proof valves 44 of the multiple battery cells 4 in the same compartment 3 can be exposed from the corresponding openings 11 , thereby playing a role in avoiding the exhaust of the explosion-proof valves 44 .

[0065] In some embodiments, the battery temperature control assembly includes a plurality of heat insulating members 5 , which are respectively disposed between two adjacent battery cells 4 in the same spacing space 3 , and the heat insulating members 5 are used to suppress heat transfer between two adjacent battery cells 4 .

[0066] For example, Figure 1As shown, the heat insulating member 5 can be generally in the shape of a rectangular plate, and the material of the heat insulating member 5 can be aerogel or other heat insulating materials. The heat insulating member 5 can be clamped and fixed between the large surfaces of two adjacent battery cells 4, and the heat insulating member 5 can play a heat insulating effect, thereby avoiding the heat transfer between the battery cells 4, thereby avoiding the local heat from spreading to the other battery cells 4, so that the heat can be controlled in a smaller range.

[0067] In some embodiments, Figure 5 As shown, the first heat exchange plate 1 is provided with a first liquid inlet 12 and a first liquid outlet 13, and the first liquid inlet 12 and the first liquid outlet 13 are arranged diagonally on the first heat exchange plate 1. The first liquid inlet 12 can be arranged at the right front corner of the first heat exchange plate 1, and the first liquid outlet 13 can be arranged at the left rear corner of the first heat exchange plate 1. This is conducive to ensuring the adequacy of heat exchange of the temperature control medium.

[0068] In some embodiments, Figure 7 As shown, the battery temperature control assembly includes a liquid inlet pipe 7 and a liquid discharge pipe 8, which are arranged on the same side of the plurality of second heat exchange plates 2 and are connected to the plurality of second heat exchange plates 2. Specifically, the liquid inlet pipe 7 and the liquid discharge pipe 8 can both extend in the left-right direction, wherein the liquid inlet pipe 7 can be arranged below the liquid discharge pipe 8, the inlet of the channel of each second heat exchange plate 2 can be connected to the liquid inlet pipe 7, and the outlet of the channel of each second heat exchange plate 2 can be connected to the liquid discharge pipe 8.

[0069] The liquid inlet pipe 7 is used to introduce the temperature regulating medium into the plurality of second heat exchange plates 2 and is provided with a second liquid inlet port 71. The liquid discharge pipe 8 is used to discharge the temperature regulating medium in the plurality of second heat exchange plates 2 and is provided with a second liquid outlet port 81. The second liquid inlet port 71 can be provided at a position adjacent to the left end of the liquid inlet pipe 7, and the second liquid outlet port 81 can be provided at a position adjacent to the right end of the liquid discharge pipe 8.

[0070] Therefore, the temperature control medium can be introduced into or discharged from the plurality of second heat exchange plates 2 via the liquid inlet pipe 7 and the liquid discharge pipe 8 at the same time, thus meeting the use requirements of centralized supply and simplifying the overall pipeline layout.

[0071] The battery device according to the embodiment of the present utility model is described below.

[0072] The battery device of the embodiment of the utility model comprises a plurality of battery cells 4 and a battery temperature regulating assembly as in any of the above embodiments. The plurality of battery cells 4 are all assembled in the partition space 3 and are in close contact with the second heat exchange plate 2 .

[0073] The following describes a vehicle according to an embodiment of the present utility model.

[0074] The vehicle of the embodiment of the utility model includes a battery device, and the battery device can be a battery device as described in any of the above embodiments. The vehicle can be a car, SUV, bus and other vehicles, and of course can also be other vehicles powered by the battery device.

[0075] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A battery temperature control component, characterized in that: include: A first heat exchange plate, the first heat exchange plate being used to be in contact with the bottom surfaces of the plurality of battery cells to achieve heat conduction; Multiple second heat exchange plates are thermally connected to the same side of the first heat exchange plate, and multiple second heat exchange plates are arranged at intervals along a set direction. The interval space between two adjacent second heat exchange plates is used to place battery cells. The second heat exchange plates are used to fit in contact with the side of the battery cell to achieve heat conduction.

2. The battery temperature control assembly according to claim 1, characterized in that: The surface of the second heat exchange plate perpendicular to the set direction is in contact with the side surface of the battery cell perpendicular to the set direction.

3. The battery temperature control assembly according to claim 1, characterized in that: A filler is disposed between the second heat exchange plate and the first heat exchange plate, and the filler is used to achieve heat conduction between the second heat exchange plate and the first heat exchange plate.

4. The battery temperature control assembly according to claim 3, characterized in that: The filler is in contact with two adjacent battery cells in the set direction.

5. The battery temperature control assembly according to claim 4, characterized in that: The filler is provided with a first groove, and the first groove is used for the corner of the battery cell to be embedded; And / or, the filler is provided with a second groove, and the second groove is used for the second heat exchange plate to be embedded.

6. The battery temperature control assembly according to claim 3, characterized in that: The width dimension of the filler in the set direction is not less than the width dimension of the second heat exchange plate in the set direction.

7. The battery temperature control assembly according to claim 3, characterized in that: The filler is elastically deformable.

8. The battery temperature control assembly according to claim 1, characterized in that: The first heat exchange plate is provided with an opening, and the opening is used to expose the explosion-proof valve of the battery cell.

9. The battery temperature control assembly according to claim 1, characterized in that: It comprises a plurality of heat insulating members, which are respectively arranged between two adjacent battery cells in the same spacing space, and are used to suppress heat transfer between the two adjacent battery cells.

10. The battery temperature control assembly according to claim 1, characterized in that: The first heat exchange plate is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet and the first liquid outlet are arranged diagonally on the first heat exchange plate.

11. The battery temperature control assembly according to any one of claims 1 to 10, characterized in that: It includes a liquid inlet pipe and a liquid discharge pipe, which are arranged on the same side of the plurality of second heat exchange plates and are connected to the plurality of second heat exchange plates. The liquid inlet pipe is used to introduce a temperature regulating medium into the plurality of second heat exchange plates and is provided with a second liquid inlet. The liquid discharge pipe is used to discharge the temperature regulating medium in the plurality of second heat exchange plates and is provided with a second liquid outlet.

12. A battery device, characterized in that: It comprises a plurality of battery cells and a battery temperature regulating assembly as claimed in any one of claims 1 to 11, wherein the plurality of battery cells are assembled in the partition space and in close contact with the second heat exchange plate.

13. A vehicle, characterized in that: Comprising a battery device as described in claim 12 above.

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