Heat exchange assembly and battery module
The liquid-cooled and heated matrix in battery modules addresses thermal management issues by maintaining cell temperature within safe limits, preventing thermal runaway and ensuring stable operation.
Patent Information
- Application Number
- CN202422026802.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The existing battery modules cannot effectively dissipate heat when the temperature is too high, resulting in life attenuation and even thermal runaway, and cannot effectively heat when the temperature is too low, affecting the stable operation of the battery.
The rectangular liquid-cooled plate design is adopted, combining the liquid-cooled part and the heating part, coolant is passed through the channel of the liquid-cooled plate for heat dissipation, and the battery cell is heated through the heating film to ensure that the battery cell temperature remains in the normal range.
It effectively prevents thermal runaway caused by excessive battery temperature, and heats up when the temperature is too low to ensure the stable operation of the battery module.
Smart Images
Figure CN223108974U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and more specifically, to a heat exchange component and a battery module. Background Art
[0002] During the use of a battery, the operating temperature of the battery plays a crucial role in its performance, that is, both too high and too low battery temperatures will affect the normal use of the battery. However, existing battery modules usually only use heating wires to supply heat to the battery and cannot dissipate heat from the battery, resulting in a decline in battery life or even thermal runaway when the temperature is high. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a heat exchange component and a battery module, which can absorb the heat of the battery cells by introducing a coolant into the channels of the liquid cooling plate, thereby dissipating heat from the battery cells, preventing thermal runaway due to excessive temperature of the battery cells, and heating the battery cells through a heating part, so as to maintain the temperature of the battery cells within a normal range and ensure the stable operation of the battery module.
[0004] The embodiments of the utility model are implemented as follows:
[0005] In a first aspect, the utility model provides a heat exchange component, comprising:
[0006] A liquid cooling plate, which is in the shape of a rectangular plate. The liquid cooling plate includes a liquid cooling part and a heating part. Both the liquid cooling part and the heating part extend along the length direction of the liquid cooling plate. The liquid cooling part is provided with channels for introducing a coolant, and the liquid cooling part is used to be disposed in contact with the battery cells;
[0007] A heating film, which is attached to the heating part and is used to be disposed in contact with the battery cells.
[0008] In the above embodiment, the liquid cooling plate is in the shape of a rectangular plate, that is, the liquid cooling plate is rectangular, so as to facilitate contact with multiple battery cells in the length direction of the liquid cooling plate; by providing the liquid cooling part and the heating part in the length direction of the liquid cooling plate, that is, both the liquid cooling part and the heating part are also rectangular, multiple battery cells can be simultaneously in contact with the liquid cooling part and the heating part, thereby absorbing the heat of the battery cells by introducing a coolant into the channels of the liquid cooling plate, dissipating heat from the battery cells, preventing thermal runaway due to excessive temperature of the battery cells, and heating the battery cells through the heating part, so as to maintain the temperature of the battery cells within a normal range and ensure the stable operation of the battery module.
[0009] In an alternative embodiment, the number of the liquid cooling parts is two, and the two liquid cooling parts are respectively disposed at both ends in the width direction of the liquid cooling plate, and the heating part is disposed between the two liquid cooling parts.
[0010] In an alternative embodiment, the heating part is in the shape of a groove, and the heating film is attached to the bottom wall of the groove of the heating part.
[0011] In an alternative embodiment, the channels of the two liquid cooling parts communicate with each other to form a loop.
[0012] In an alternative embodiment, the heating parts are arranged on both side surfaces of the liquid cooling plate, the number of the heating films is two, and the two heating films are respectively attached to the two heating parts.
[0013] In an alternative embodiment, a clamping part is arranged at the end of the liquid cooling plate, the clamping part protrudes from the side edge in the width direction of the liquid cooling plate, and the clamping part is used for clamping with the mounting plate.
[0014] In a second aspect, the present utility model provides a battery module, including battery cells and a heat exchange component as described in any one of the foregoing embodiments. The number of the battery cells is multiple, and the multiple battery cells are distributed in two groups, and the heat exchange component is arranged between the two groups of battery cells.
[0015] In the above embodiment, by arranging the heat exchange component between the two groups of battery cells, the heat exchange component is used to heat or cool the two groups of battery cells, so as to cool the battery cells when the temperature of the battery cells is too high, and heat the battery cells when the temperature of the battery cells is too low, thereby ensuring that the battery cells operate within a preset temperature range and ensuring the stable operation of the battery module.
[0016] In an alternative embodiment, the battery module further includes a mounting plate, and a plurality of mounting grooves are arranged on both sides of the mounting plate. Each of the multiple battery cells in each group is correspondingly mounted in the multiple mounting grooves.
[0017] In an alternative embodiment, the multiple mounting grooves are arranged on the upper and lower sides of the mounting plate, and the multiple mounting grooves on the upper and lower sides are staggeredly distributed.
[0018] In an alternative embodiment, the battery module further includes two end plates, and one ends of the two groups of battery cells away from the mounting plate are respectively connected to the two end plates.
[0019] The beneficial effects of the heat exchange component and the battery module provided by the embodiments of the present utility model include: the liquid cooling plate is in the shape of a rectangular plate, that is, the liquid cooling plate is rectangular, so as to facilitate contacting with multiple battery cells in the length direction of the liquid cooling plate; by arranging the liquid cooling part and the heating part in the length direction of the liquid cooling plate, that is, the liquid cooling part and the heating part are also rectangular, it is possible to simultaneously make multiple battery cells contact with the liquid cooling part and the heating part, so as to absorb the heat of the battery cells by the coolant introduced into the channels of the liquid cooling plate, thereby dissipating heat from the battery cells, preventing the temperature of the battery cells from being too high and causing thermal runaway, and heating the battery cells through the heating part, so as to keep the temperature of the battery cells within a normal range and ensure the stable operation of the battery module. Brief Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0021] Figure 1 Schematic structural diagram of the battery module provided by the embodiment of the present utility model;
[0022] Figure 2 Schematic structural diagram of the heat exchange component provided by the embodiment of the present utility model;
[0023] Figure 3 Schematic cross-sectional structural diagram of the heat exchange component provided by the embodiment of the present utility model;
[0024] Figure 4 Schematic structural diagram of the mounting plate provided by the embodiment of the present utility model.
[0025] Icons: 10 - battery module; 100 - heat exchange component; 110 - liquid cooling plate; 111 - liquid cooling part; 112 - heating part; 113 - channel; 114 - clamping part; 120 - heating film; 200 - battery cell; 300 - mounting plate; 310 - mounting groove; 400 - end plate. Detailed Description of the Embodiments
[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0028] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.
[0030] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0032] During the use of the battery, the operating temperature of the battery plays a crucial role in the performance of the battery, that is, too high or too low battery temperature will affect the normal use of the battery. However, the existing battery modules usually only use heating wires to supply heat to the battery and cannot dissipate heat from the battery, resulting in the attenuation of the battery life when the temperature is high or even causing thermal runaway.
[0033] Based on the above problems, please refer to Figures 1 to 4 , the present utility model provides a battery module 10, including a battery cell 200 and a heat exchange component 100. The number of battery cells 200 is multiple, and the multiple battery cells 200 are distributed in two groups. The heat exchange component 100 is arranged between the two groups of battery cells 200.
[0034] In this embodiment, by arranging the heat exchange component 100 between the two groups of battery cells 200, the heat exchange component 100 is used to heat or dissipate heat from the two groups of battery cells 200, so as to cool the battery cells 200 when the temperature of the battery cells 200 is too high and heat the battery cells 200 when the temperature of the battery cells 200 is too low, thereby ensuring that the battery cells 200 operate within a preset temperature range and ensuring the stable operation of the battery module 10.
[0035] Specifically, the heat exchange component 100 includes a liquid cooling plate 110 and a heating film 120.
[0036] Among them, the liquid cooling plate 110 is in the shape of a rectangular plate, that is, the liquid cooling plate 110 is rectangular, so as to facilitate contact with multiple battery cells in the length direction of the liquid cooling plate 110. The liquid cooling plate 110 includes a liquid cooling part 111 and a heating part 112. Both the liquid cooling part 111 and the heating part 112 extend along the length direction of the liquid cooling plate 110. Therefore, both the liquid cooling part 111 and the heating part 112 are also rectangular, which is convenient for the liquid cooling part 111 and the heating part 112 to contact multiple battery cells, so as to heat or dissipate heat for multiple battery cells; the liquid cooling part 111 is provided with a channel 113 for passing a coolant, and the liquid cooling part 111 is used to be attached to the battery cell 200 for dissipating heat from the battery cell 200; the heating film 120 is attached to the heating part 112, and the heating film 120 is used to be attached to the battery cell 200 for heating the battery cell 200.
[0037] In this embodiment, by arranging the liquid cooling part 111 and the heating part 112 in the length direction of the liquid cooling plate 110, multiple battery cells 200 can be simultaneously brought into contact with the liquid cooling part 111 and the heating part 112. Thus, the coolant passed into the channel 113 of the liquid cooling plate 110 absorbs the heat of the battery cell 200 to dissipate heat from the battery cell 200, preventing the battery cell 200 from overheating and experiencing thermal runaway, and heating the battery cell 200 through the heating part 112, so as to maintain the temperature of the battery cell 200 within a normal range and ensure the stable operation of the battery module 10.
[0038] It can be understood that the channel 113 is provided with an inlet (not shown in the figure) and an outlet (not shown in the figure). The coolant is conveyed through the inlet and the coolant that has undergone heat exchange with the battery cell 200 flows out from the outlet.
[0039] Optionally, the heating film 120 can be fixed on the liquid cooling plate 110 by means of pasting or the like. The heating film 120 can be made of a silicone material. Since silicone has good heat conduction effect, it is convenient for the heating film 120 to heat the battery cell 200 and has a high heating efficiency; moreover, when the heating film 120 is not used, that is, when the liquid cooling part 111 is required to cool the battery module 10, the silicone heating film 120 can also play a heat conduction role, so that the liquid cooling plate 110 quickly cools the battery cell 200 through the silicone heating film 120.
[0040] Furthermore, the number of the liquid cooling parts 111 is two, and the two liquid cooling parts 111 are respectively arranged at both ends in the width direction of the liquid cooling plate 110, and the heating part 112 is arranged between the two liquid cooling parts 111.
[0041] In this embodiment, by providing two liquid cooling parts 111, the contact area with the battery cells 200 is increased, thereby effectively dissipating heat from the battery cells 200 and avoiding phenomena such as thermal runaway.
[0042] It can be understood that each battery cell is in contact with at least one liquid cooling part 111 and one heating part 112. As Figure 1 shown, multiple battery cells are distributed in two layers. The battery cells in the first layer are in contact with the liquid cooling part 111 on the top of the liquid cooling plate 110 and the heating part 112 between the two liquid cooling parts 111 at the same time. The battery cells in the second layer are in contact with the liquid cooling part 111 at the bottom of the liquid cooling plate 110 and the heating part 112 between the two liquid cooling parts 111 at the same time. Thus, the liquid cooling plate 110 can heat or cool each battery cell simultaneously, thereby ensuring that the temperature of the battery cells 200 is maintained within a normal range and further ensuring the stable operation of the battery module 10.
[0043] Furthermore, the heating part 112 is in a groove shape, and the heating film 120 is attached to the bottom wall of the groove of the heating part 112.
[0044] In this embodiment, the area between the two liquid cooling parts 111 is the groove-shaped heating part 112. The groove can limit the heating film 120 and also prevent the heating film 120 from detaching, thereby realizing the stable installation of the heating film 120 in the groove and improving the structural stability of the heat exchange component 100.
[0045] Furthermore, the channels 113 of the two liquid cooling parts 111 communicate with each other to form a loop.
[0046] In this embodiment, the channels 113 of the two liquid cooling parts 111 can communicate with each other at the end of the liquid cooling plate 110 to form a loop, which can achieve the purpose of saving space.
[0047] Furthermore, heating parts 112 are provided on both side surfaces of the liquid cooling plate 110. The number of heating films 120 is two, and the two heating films 120 are respectively attached to the two heating parts 112.
[0048] In this embodiment, by providing two heating films 120 on both sides of the liquid cooling plate 110 respectively, the multiple battery cells 200 on both sides of the liquid cooling plate 110 can be heated simultaneously, thereby improving the heating efficiency.
[0049] Furthermore, a clamping part 114 is provided at the end of the liquid cooling plate 110. The clamping part 114 protrudes from the side edge in the width direction of the liquid cooling plate 110, and the clamping part 114 is used for clamping with the mounting plate 300.
[0050] In this embodiment, by providing the clamping part 114 on the end plate 400 of the liquid cooling plate 110, the liquid cooling plate 110 is stably installed by clamping the clamping part 114 with the mounting plate 300.
[0051] Further, the battery module 10 further includes a mounting plate 300. A plurality of mounting grooves 310 are provided on both sides of the mounting plate 300, and the plurality of battery cells 200 in each group are respectively mounted in the plurality of mounting grooves 310 in a one-to-one correspondence.
[0052] In this embodiment, by mounting the plurality of battery cells 200 in each group in the plurality of mounting grooves 310 in a one-to-one correspondence.
[0053] It can be understood that the number of the mounting plates 300 is two, and the two groups of battery cells 200 are respectively mounted on the two mounting plates 300.
[0054] Further, the plurality of mounting grooves 310 are provided on the upper and lower sides of the mounting plate 300, and the plurality of mounting grooves 310 on the upper and lower sides are arranged in a staggered manner.
[0055] In this embodiment, since the battery cells 200 are cylindrical, by providing the plurality of mounting grooves 310 on the upper and lower sides of the mounting plate 300 and making the plurality of mounting grooves 310 on the upper and lower sides arranged in a staggered manner, a plurality of battery cells 200 can be mounted to the greatest extent, and the mounting space can be fully utilized.
[0056] Further, the battery module 10 further includes two end plates 400. One ends of the two groups of battery cells 200 away from the mounting plate 300 are respectively connected to the two end plates 400.
[0057] In this embodiment, by respectively mounting the two end plates 400 at the two ends of the two groups of battery cells 200 away from the mounting plate 300, the two groups of battery cells 200 are stably mounted, thereby improving the mounting stability of the battery module 10.
[0058] In summary, the present utility model provides a heat exchange assembly 100 and a battery module 10. The liquid cooling plate 110 is in the shape of a rectangular plate, that is, the liquid cooling plate 110 is rectangular, so as to facilitate contacting with a plurality of battery cells in the length direction of the liquid cooling plate 110; by providing the liquid cooling part 111 and the heating part 112 in the length direction of the liquid cooling plate 110, that is, both the liquid cooling part 111 and the heating part 112 are also rectangular, a plurality of battery cells 200 can be simultaneously contacted with the liquid cooling part 111 and the heating part 112. Thus, the coolant introduced into the channel 113 of the liquid cooling plate 110 absorbs the heat of the battery cells 200, so as to dissipate heat from the battery cells 200, prevent the temperature of the battery cells 200 from being too high and causing thermal runaway, and heat the battery cells 200 through the heating part 112, so as to keep the temperature of the battery cells 200 within a normal range and ensure the stable operation of the battery module 10.
[0059] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A heat exchange component, characterized in that, Comprising: A liquid cooling plate, the liquid cooling plate being in the shape of a rectangular plate. The liquid cooling plate includes a liquid cooling part and a heating part. Both the liquid cooling part and the heating part extend along the length direction of the liquid cooling plate. The liquid cooling part is provided with a channel for passing a coolant, and the liquid cooling part is used to be attached to the battery cell. A heating film, the heating film being attached to the heating part, and the heating film being used to be attached to the battery cell.
2. The heat exchange component according to claim 1, wherein The number of the liquid cooling parts is two, and the two liquid cooling parts are respectively arranged at both ends in the width direction of the liquid cooling plate, and the heating part is arranged between the two liquid cooling parts.
3. The heat exchange assembly according to claim 2, characterized in that The heating part is in a groove shape, and the heating film is attached to the bottom wall of the groove of the heating part.
4. The heat exchange component according to claim 2, characterized in that, The channels of the two liquid cooling parts are communicated with each other to form a loop.
5. The heat exchange component according to claim 1, wherein Both side surfaces of the liquid cooling plate are provided with the heating parts, the number of the heating films is two, and the two heating films are respectively attached to the two heating parts.
6. The heat exchange component according to claim 1, wherein A clamping part is arranged at the end of the liquid cooling plate, the clamping part protruding from the side edge in the width direction of the liquid cooling plate, and the clamping part is used for clamping with the mounting plate.
7. A battery module, characterized in that, Comprising a battery cell and a heat exchange assembly as described in any one of claims 1-6. The number of the battery cells is multiple, and the multiple battery cells are distributed in two groups, and the heat exchange assembly is arranged between the two groups of battery cells.
8. The battery module according to claim 7, characterized in that, The battery module further includes a mounting plate, and both sides of the mounting plate are provided with a plurality of mounting grooves, and the multiple battery cells in each group are respectively mounted in the plurality of mounting grooves in a one-to-one correspondence.
9. The battery module according to claim 8, wherein, The multiple mounting grooves are arranged on the upper and lower sides of the mounting plate, and the multiple mounting grooves on the upper and lower sides are arranged in a staggered manner.
10. The battery module according to claim 8, wherein, The battery module further includes two end plates, and one ends of the two groups of battery cells far away from the mounting plate are respectively connected to the two end plates.