Heat conduction assembly and battery module

Abstract

The utility model provides a heat-conducting assembly and a battery module, the heat-conducting assembly comprises a first side plate, a second side plate and a heat-conducting layer, the supporting piece is arranged between the first side plate and the second side plate, the supporting piece extends in the length direction of the first side plate, the supporting piece is provided with a first side opposite to the first side plate and a second side opposite to the second side plate, and the first side and / or the second side are / is spaced from the inner side wall of the first side plate and the inner side wall of the second side plate; the heat insulation part is arranged at the interval between the supporting part and the first side plate and / or the second side plate; the supporting piece and the heat insulation piece are matched together so that the space between the first side plate and the second side plate can be divided into a plurality of heat conduction channels. By applying the technical scheme of the utility model, the technical problem of poor heat dissipation effect in related technologies can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a heat-conducting component and a battery module. Background Art

[0002] With the widespread application of lithium batteries, the safety of lithium batteries has become a major problem plaguing the development of the industry. The main reason for this problem is that the energy density of the battery cell is too high, which causes the temperature inside the battery module or battery box to be too high. When the temperature of the battery cell exceeds the limit temperature, the battery module will experience thermal runaway, and the stable operation of the device cannot be guaranteed.

[0003] In the related art, an air duct clamp is set between adjacent battery cells. The air duct clamp is mainly formed by casting. When in use, a heat insulating material is filled between the battery cell and the air duct clamp to prevent the heat from spreading in the thermal runaway state of the battery cell. However, under normal working conditions of the battery cell, the above structure will reduce the heat dissipation effect of the heat sink on the battery cell due to the presence of the heat insulating material, thereby failing to ensure the heat dissipation efficiency of the battery cell. Utility Model Content

[0004] The embodiments of the utility model provide a heat-conducting component and a battery module, which can improve the technical problem of poor heat dissipation effect in the related art.

[0005] In a first aspect, an embodiment of the utility model provides a heat-conducting component, which includes: a first side plate, a second side plate, which is spaced apart from the first side plate; a support member, which is arranged between the first side plate and the second side plate, the support member extending along the length direction of the first side plate, the support member having a first side arranged relative to the first side plate, and a second side arranged relative to the second side plate, the first side and / or the second side being spaced apart from the inner side wall of the first side plate and the inner side wall of the second side plate; a heat-insulating member, which is arranged at the space between the support member and the first side plate and / or the second side plate; wherein the support member and the heat-insulating member cooperate to separate the space between the first side plate and the second side plate into a plurality of heat-conducting channels.

[0006] In one embodiment, the heat conduction component further includes an adjusting member, which is rotatably disposed in the heat conduction channel, wherein the rotation axis of the adjusting member is parallel to the width direction of the first side plate, and the adjusting member is used to adjust the medium flow in the heat conduction channel.

[0007] In one embodiment, the heat-conducting component also includes: a transmission rod, which is connected to the adjusting member along the rotation axis of the adjusting member, the transmission rod and the adjusting member can rotate synchronously, and the rotation axis of the transmission rod coincides with the rotation axis of the adjusting member; a driving member, the driving end of the driving member is connected to the transmission rod to drive the transmission rod and the adjusting member to rotate synchronously.

[0008] In one embodiment, the adjusting member has a first position and a second position which are arranged relatively to each other. When the adjusting member is located at the first position, the medium flow in the heat conduction channel is the smallest, and the cross section of the adjusting member along the thickness direction of the first side plate is the first cross section.

[0009] When the adjusting member is located at the second position, the medium flow in the heat conduction channel is the largest, the cross section of the adjusting member along the thickness direction of the first side plate is the second cross section, and the cross-sectional area of ​​the first cross section is greater than the cross-sectional area of ​​the second cross section.

[0010] In one embodiment, there are multiple adjusting members, and the multiple adjusting members are arranged in a one-to-one correspondence with the multiple heat conduction channels.

[0011] In one embodiment, the first side and the first side plate are an integrally formed structure or the second side and the second side plate are an integrally formed structure.

[0012] In one embodiment, an extension length of the support member is the same as an extension length of the first side plate.

[0013] In one embodiment, the angle between the support member and the first side plate and / or the second side plate is a right angle.

[0014] In one embodiment, the extension length of the heat insulating member along the length direction of the first side plate is L, 1mm≤L≤3mm.

[0015] In one embodiment, the thermal insulation element is a porous structure.

[0016] In one embodiment, the included angle between the support member and the first side plate and / or the second side plate is an acute angle or an obtuse angle, and the support member is used to absorb the expansion force of the battery cell.

[0017] In one embodiment, the heat conduction channel includes an air cooling channel or a liquid cooling channel.

[0018] In the second aspect, an embodiment of the utility model provides a battery module, the battery module comprising: the above-mentioned heat-conducting component; a plurality of battery cells arranged at intervals, a heat-conducting component is arranged between the intervals between two adjacent battery cells, and the outer wall of the first side plate of the heat-conducting component is connected to the side wall of one of the battery cells, and the outer wall of the second side plate of the heat-conducting component is connected to the side wall of another battery cell, and the heat-conducting component exchanges heat with adjacent battery cells through a plurality of heat-conducting channels of the heat-conducting component.

[0019] In one embodiment, the heat conductive component has an inlet and an outlet arranged relatively along the air duct, and the battery module further includes: a heat sink arranged at the inlet and / or the outlet, and the medium flow direction of the heat sink is parallel to the medium flow direction in the heat conductive channel.

[0020] By applying the technical solution of the utility model, a support member is arranged between the first side plate and the second side plate, and the support member has a first side arranged relative to the first side plate, and a second side arranged relative to the second side plate, and at least one of the first side and the second side has a gap with the inner side wall of the first side plate and the inner side wall of the second side plate, and then a heat insulating member is arranged in the above-mentioned gap, which can prevent the heat of the first side plate and the heat of the second side plate from being mutually conducted, thereby preventing the heat from being conducted to other battery cells when thermal runaway occurs in the battery cell, and the support member and the heat insulating member divide the space between the first side plate and the second side plate into a plurality of heat conduction channels, and the outer side wall of the first side plate and the outer side wall of the second side plate are respectively connected to the side walls of the battery cell, so that the first side plate and the second side plate can exchange heat with the battery cell, thereby improving the heat dissipation effect of the heat dissipation member on the battery cell and ensuring the heat dissipation efficiency of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of a heat conduction component provided by an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Figure 3 It is a schematic diagram of the structure of the air duct in the heat conduction component provided by the embodiment of the utility model;

[0025] Figure 4 is a schematic top view of a heat conduction component provided in an embodiment of the utility model;

[0026] Figure 5 yes Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 6 It is a structural schematic diagram of a battery module provided by an embodiment of the utility model.

[0028] The above drawings include the following reference numerals:

[0029] 10. First side panel;

[0030] 20. Second side panel;

[0031] 30. Supporting parts;

[0032] 40. Thermal insulation;

[0033] 50. Heat conduction channel;

[0034] 60. adjusting member; 70. transmission rod; 80. driving member; 90. battery cell; 100. heat sink; X, length direction of the first side plate; Y, width direction of the first side plate; Z, thickness direction of the first side plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] like Figures 1 to 5 As shown, in the first aspect, an embodiment of the utility model provides an air duct assembly, the air duct assembly comprising: a first side plate 10, a second side plate 20, which is spaced apart from the first side plate 10; a support member 30, which is arranged between the first side plate 10 and the second side plate 20, the support member 30 extends along the length direction of the first side plate 10, the support member 30 has a first side arranged relative to the first side plate 10, and a second side arranged relative to the second side plate 20, the first side and / or the second side is spaced apart from the inner side wall of the first side plate 10 and the inner side wall of the second side plate 20; a heat insulating member 40, which is arranged at the space between the support member 30 and the first side plate 10 and / or the second side plate 20; wherein the support member 30 and the heat insulating member 40 cooperate to separate the space between the first side plate 10 and the second side plate 20 into a plurality of heat conducting channels 50.

[0037] By applying the technical solution of the utility model, a support member 30 is arranged between the first side plate 10 and the second side plate 20, and the support member 30 has a first side arranged relative to the first side plate 10, and a second side arranged relative to the second side plate 20, at least one of the first side and the second side is spaced apart from the inner side wall of the first side plate 10 and the inner side wall of the second side plate 20, and the heat insulating member 40 is arranged in the above-mentioned space, so that the heat of the first side plate 10 and the heat of the second side plate 20 can be prevented from being mutually conducted, thereby being able to It is able to prevent the battery cell 90 from transferring heat to other battery cells 90 when thermal runaway occurs, and the support member 30 and the heat insulating member 40 divide the space between the first side plate 10 and the second side plate 20 into a plurality of heat conduction channels 50, and the outer side wall of the first side plate 10 and the outer side wall of the second side plate 20 are respectively connected to the side walls of the battery cell 90, so that the first side plate 10 and the second side plate 20 can exchange heat with the battery cell 90, thereby improving the heat dissipation effect of the heat sink 100 on the battery cell 90 and ensuring the heat dissipation efficiency of the battery cell 90.

[0038] In the present application, by setting a support member 30 between the first side panel 10 and the second side panel 20, when the two sides of the air duct assembly are subjected to extrusion force, at least one side of the support member 30 can abut against the inner wall of the first side panel 10 or the inner wall of the second side panel 20, so that the support member 30 can support the first side panel 10 and the second side panel 20 on both sides. In this way, the mechanical load capacity of the air duct assembly is larger, so that the air duct assembly can absorb the expansion of the battery cells 90 on the adjacent two sides, and the reliability of the air duct assembly during use can be improved.

[0039] In addition, a cavity is formed between the first side plate 10 and the second side plate 20, and the two ends of the cavity are connected to the outside world. The support member 30 can separate the cavity, thereby forming a ventilated heat conduction channel 50, so that the outside wind can pass through the heat conduction channel 50 to dissipate the heat of the battery cells 90 on both sides of the air duct assembly, thereby ensuring that the heat dissipation effect of the air duct assembly is good, the possibility of thermal runaway is reduced, and the safety performance is high.

[0040] Furthermore, in the embodiment of the present application, the first side plate 10 and the second side plate 20 may be made of aluminum alloy, because aluminum alloy has the following advantages:

[0041] 1. Lightweight and high strength: Since the density of aluminum alloy is relatively low, about one-third of that of steel, but the strength of aluminum alloy is relatively high, it has excellent specific strength (ratio of strength to weight). This not only reduces the overall weight of the air duct assembly, but also ensures that the device has sufficient structural strength to meet different usage environments.

[0042] 2. Good thermal conductivity and electrical conductivity: Since aluminum alloy has excellent thermal conductivity and electrical conductivity, it can improve the heat conduction efficiency, so that the battery cell 90 can exchange heat with the outside air in time, and reduce the thermal runaway phenomenon of the battery cell 90 as much as possible, which is conducive to maintaining the normal operation of the battery cell 90.

[0043] 3. Corrosion resistance: When aluminum alloy contacts air, a dense oxide film will form on the surface, which can prevent the aluminum alloy from corroding, so the aluminum alloy has good corrosion resistance. At the same time, by implementing a specific surface treatment process, such as an aluminum oxide film treatment method, its corrosion resistance can be further enhanced. In this application, the service life of the component structure can be extended, thereby reducing the use cost of the device.

[0044] 4. Easy processing: Since aluminum alloy materials have good plasticity, they can be made into parts of various shapes and sizes through various processing methods such as extrusion, stretching, rolling and forging, which can reduce the production cost of the structure and facilitate the mass production of components. In addition, the welding performance of aluminum alloy is relatively good, and it can be connected through a variety of welding methods, which can reduce the processing difficulty of the device.

[0045] 5. Renewability: Due to the relatively low melting point of aluminum, aluminum alloy is easy to regenerate during waste treatment, and the regeneration process is pollution-free and in line with the sustainable development strategy, thus meeting the green development of the environment.

[0046] Of course, in other embodiments of the present application, the first side plate 10 and the second side plate 20 can also be set to other materials such as copper, as long as they can meet the use requirements of the device. The specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0047] In the present application, the heat insulating member 40 is set as a silicone heat insulating pad, because silicone has the following advantages:

[0048] 1. Good elasticity and cushioning performance: Since the silicone pad has excellent elasticity and cushioning performance, it can effectively absorb and disperse the impact force, thereby protecting the first side plate 10 and the second side plate 20 from colliding during use and causing damage to its own structure. Therefore, the structure of the first side plate 10 and the second side plate 20 can be protected to further improve the service life of the first side plate 10 and the second side plate 20.

[0049] 2. High and low temperature resistance: Since silicone can maintain the stability of its physical and chemical properties in a wide temperature range, it can maintain its good elasticity and durability regardless of high or low temperature environments. Therefore, it can prevent the first side plate 10 and the second side plate 20 from conducting heat as much as possible. This can effectively prevent the heat of the battery cell 90 from being transferred to other battery cells 90 when thermal runaway occurs, thereby ensuring the normal operation of the component.

[0050] 3. Excellent insulation performance: Since silica gel has excellent insulation performance, it can effectively prevent the current generated between the battery cells 90 from winding, thereby also ensuring the stability of the battery cells 90 in the present application when in use.

[0051] 4. Easy to process and shape: Since silicone can be processed and formed through molds to produce gaskets of various shapes and sizes to meet the use requirements in different environments, it can reduce the processing difficulty of the structure, thereby improving the production efficiency of the structure and reducing the implementation cost of the structure.

[0052] Optionally, in other embodiments of the present application, the thermal insulation member 40 may also be set to aerogel, etc., as long as it can meet the use requirements of the device. The specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0053] Furthermore, the air duct assembly further includes an adjusting member 60, which is rotatably disposed in the heat conduction channel 50, and the rotation axis of the adjusting member 60 is parallel to the width direction of the first side plate 10, and the adjusting member 60 is used to adjust the air flow in the heat conduction channel 50. In this arrangement, when there is a difference in the heat dissipation efficiency between the battery cells 90, the heat dissipation efficiency between the multiple battery cells 90 can be made the same by adjusting the air flow by using the adjusting member 60, so as to ensure the stable operation of the multiple battery cells 90.

[0054] In the present application, the adjusting member 60 is a square structure. Since the cross section of the heat conduction channel 50 along the thickness direction of the first side plate 10 is a square, the space utilization of the adjusting member 60 can be improved, thereby reducing unnecessary space waste. Optionally, in other embodiments of the present application, the adjusting member 60 can also be set to other structures such as a trapezoid or an ellipse, as long as it can meet the use requirements of the device. The specific setting should be selected according to the use environment of the device, so that the applicability and scope of application of the device can be improved.

[0055] Meanwhile, the adjusting member 60 may also be made of aluminum alloy, which can ensure the service life of the adjusting member 60 .

[0056] Specifically, the air duct assembly also includes: a transmission rod 70, which is connected to the adjusting member 60 along the rotation axis of the adjusting member 60, and the transmission rod 70 and the adjusting member 60 can rotate synchronously, and the rotation axis of the transmission rod 70 coincides with the rotation axis of the adjusting member 60; a driving member 80, the driving end of the driving member 80 is connected to the transmission rod 70 to drive the transmission rod 70 and the adjusting member 60 to rotate synchronously. This arrangement can realize the automatic adjustment of the flow size of the heat conduction channel 50, thereby eliminating the instability of the manual adjustment factor, ensuring that the battery cell 90 works continuously and stably, thereby improving the adjustment efficiency of the device, and at the same time, the automatic adjustment can be accurately adjusted according to the preset adjustment strategy. This high-precision adjustment method can ensure that the temperature parameters of the battery cell 90 are always kept within the set range, improving the accuracy and reliability of the adjustment.

[0057] In the present application, the driving member 80 is specifically a driving motor and is arranged outside the air duct assembly. Since the driving motor can efficiently convert electrical energy into mechanical energy, the energy loss in the conversion process is reduced, thereby improving energy utilization efficiency. At the same time, the driving motor has good speed regulation performance and can accurately adjust the speed according to actual needs to meet the needs of different use environments. In addition, during the startup phase, the driving motor can provide a large torque so that the adjusting member 60 can quickly reach the desired position. At the same time, the driving motor has high reliability, so it can reduce the maintenance cost of the structure, so that it can maintain stable performance during long-term operation.

[0058] Furthermore, the adjusting member 60 has a first position and a second position that are relatively arranged. When the adjusting member 60 is located at the first position, the air flow in the heat conduction channel 50 is the smallest, and the cross section of the adjusting member 60 along the thickness direction of the first side plate 10 is the first cross section; when the adjusting member 60 is located at the second position, the air flow in the heat conduction channel 50 is the largest, and the cross section of the adjusting member 60 along the thickness direction of the first side plate 10 is the second cross section, and the cross-sectional area of ​​the first cross section is greater than the cross-sectional area of ​​the second cross section. This arrangement can ensure the control effect of the adjusting member 60 on the air flow, thereby ensuring the accuracy and speed of the adjusting member 60 when adjusting, so as to meet the use requirements of customers.

[0059] Specifically, there are multiple adjusting members 60, and the multiple adjusting members 60 are arranged in a one-to-one correspondence with the multiple heat conduction channels 50. This arrangement can make the adjusting member 60 more accurate in adjusting the air flow, thereby further improving the accuracy of the adjustment of the adjusting member 60.

[0060] Of course, in other embodiments of the present application, the number of adjusting parts 60 can be set to be less than the number of heat conducting channels 50, as long as the use requirements of the device can be met. The specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0061] Further, the first side and the first side plate 10 are an integrally formed structure or the second side and the second side plate 20 are an integrally formed structure. In the present application, the second side and the second side plate 20 are an integrally formed structure. Of course, in other embodiments of the present application, the first side and the second side plate 20 can be set as an integrally formed structure. The specific setting should be selected according to the use environment of the device.

[0062] Since the one-piece structure is relatively stable and has high structural strength, it can withstand greater pressure and load, thereby preventing the risk of structural fracture during use of the component and ensuring the stability of the device during use. At the same time, the one-piece structure can reduce unnecessary lines and seams, making the appearance of the structure more beautiful. And since the one-piece structure reduces the steps of assembly and connection, it has higher production efficiency and is conducive to the mass production of components. At the same time, the one-piece structure also reduces material waste and energy consumption in the production process, which is conducive to reducing production costs.

[0063] Furthermore, since the one-piece structure has no welding points or connectors, the risk of corrosion and fatigue fracture caused by welding or connection is reduced, which makes the component have a longer service life and better durability, thereby further reducing the cost of using the device.

[0064] Optionally, the support member 30 can also be configured as a split structure with the first side plate 10 and the second side plate 20. This design allows for flexible configuration of various components according to specific needs and performance requirements to meet diverse performance requirements. It is also easy to expand and upgrade: when the support performance needs to be improved, the split structure can easily add new components or upgrade existing components. The split structure is also easy to repair. When the support member 30 fails, it can be quickly replaced or repaired, thereby reducing maintenance costs and improving the availability and reliability of the device.

[0065] Specifically, the extension length of the support member 30 is the same as the extension length of the first side plate 10. This arrangement can ensure that the support member 30 has sufficient supporting area for the first side plate 10 and the second side plate 20, so as to improve the supporting effect of the support member 30 as much as possible.

[0066] Optionally, the extension length of the support member 30 can also be set to be different from the extension length of the first side panel 10, as long as it can meet the use requirements of the device. The specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0067] Furthermore, the angle between the support member 30 and the first side panel 10 and the second side panel 20 is a right angle. When the two sides of the air duct assembly are subjected to extrusion force, the support member 30 can fit closely with the wall surface of the second side panel 20, so that the support effect between the first side panel 10 and the second side panel 20 is more stable. At the same time, the pressure on the surface of the first side panel 10 is small, and it is not easy to cause the first side panel 10 to bend and deform, and the service life is longer. Optionally, the angle between the support member 30 and the first side panel 10 and / or the second side panel 20 can also be set to an acute angle or an obtuse angle, as long as it can meet the use requirements of the device. The specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0068] Specifically, the extension length of the heat insulating member 40 along the length direction of the first side plate 10 is L, 1mm≤L≤3mm. When L>3mm, the extension length of the heat insulating member 40 along the length direction of the first side plate 10 is too large, which will cause the heat insulating member 40 to be partially located in the heat conducting channel 50, thereby blocking the medium in the heat conducting channel 50 and reducing the heat dissipation effect of the battery cell 90. When L<1mm, the extension length of the heat insulating member 40 along the length direction of the first side plate 10 is too small, which will cause the heat insulating member 40 to be difficult to align with the support member 30, thereby reducing the installation efficiency. At the same time, since the contact area between the heat insulating member 40 and the support member 30 will also be reduced, the heat insulating effect is reduced, which easily causes the temperature of the support member 30 to rise, affecting the normal use of the adjacent battery cells 90. Therefore, setting 1mm≤L≤3mm can not only ensure the heat insulating effect of the heat insulating member 40, but also facilitate the alignment of the heat insulating member 40 and the support member 30, thereby ensuring the effective contact area between the heat insulating member 40 and the support member 30. Optionally, L can be set to 1 mm, 2 mm or 3 mm, etc. The specific setting should be selected according to the use environment of the device, which can improve the application range of the device.

[0069] Furthermore, the heat insulating member 40 is a porous structure, which can enable the heat insulating member 40 to absorb part of the expansion force, so as to improve the applicability of the heat conducting component.

[0070] Specifically, the angle between the support member 30 and the first side plate 10 and / or the second side plate 20 is an acute angle or an obtuse angle, and the support member 30 is used to absorb the expansion force of the battery cell 90. When the battery cell 90 expands, since the support member 30 is an inclined structure relative to the first side plate 10 and / or the second side plate 20, the support member 30 can be deformed at this time, so that the heat conductive component provides expansion space for the battery cell 90 in time, thereby absorbing part of the expansion force of the battery cell 90, so as to reduce the probability of structural damage to the heat conductive component, thereby extending the service life of the heat conductive component.

[0071] Further, the heat conduction channel includes an air cooling channel or a liquid cooling channel. In the present application, the heat conduction channel is specifically an air cooling channel.

[0072] like Figure 6 As shown, in the second aspect, an embodiment of the utility model provides a battery module, the battery module comprising: the above-mentioned heat-conducting component; a plurality of battery cells 90 arranged at intervals, a heat-conducting component is arranged between the intervals of two adjacent battery cells 90, and the outer wall of the first side plate 10 of the heat-conducting component is connected to the side wall of one of the battery cells 90, and the outer wall of the second side plate 20 of the heat-conducting component is connected to the side wall of another battery cell 90, and the heat-conducting component exchanges heat with adjacent battery cells 90 through a plurality of heat-conducting channels 50 of the heat-conducting component.

[0073] In the present application, a heat-conducting member is provided between the battery cell 90 and the heat-conducting component. The material of the heat-conducting member can be set to heat-conducting silica gel or phase change sheet. Phase change sheet is also called phase change material or smart material. It is a material that can produce phase change and morphological change by changing temperature. Its structure is usually composed of a layer of phase change material sandwiched between two layers of metal foil or plastic film. Common phase change materials include Ge2Sb2Te5, etc. This material can change from a crystalline state to an amorphous state, or from an amorphous state to a crystalline state within a certain temperature range, thereby realizing changes in performance such as capacitance, resistance, and inductance. The working principle of the phase change sheet is to use the phase change material to absorb or release heat at the phase change temperature, thereby realizing the storage and release of thermal energy.

[0074] Thermally conductive silicone is a silicone material with thermal conductivity, usually used to conduct heat and improve heat dissipation. It is a silicone made of organic silicone as the main body, with fillers, thermal conductive materials and other polymer materials added. It has good thermal conductivity and electrical insulation properties, will not solidify, and will not conduct electricity, which can avoid risks such as circuit short circuits. Thermally conductive silicone includes room temperature vulcanized and high temperature vulcanized silicone, generally including thermally conductive silicone adhesives, thermally conductive potting glue, and thermally conductive gaskets that have been vulcanized into a certain shape.

[0075] The advantages of thermally conductive silicone are its high thermal conductivity, stability and durability, good filling performance, extremely low resistance and chemical resistance. Compared with other common heat dissipation materials, such as thermal paste and thermal pads, thermally conductive silicone usually has a higher thermal conductivity, can more effectively transfer heat and reduce temperature, and improve heat dissipation efficiency. In addition, it can maintain stable performance under extreme temperatures, has good aging resistance and long service life. Therefore, it can be selected according to the use requirements of the device in different environments, so as to maximize the use range of the device.

[0076] Furthermore, the heat conducting component has an inlet and an outlet arranged relatively along the heat conducting channel 50, and the battery module further comprises: a heat sink 100 arranged at the inlet and / or the outlet, and the medium flow direction of the heat sink 100 is parallel to the medium flow direction of the heat conducting channel 50. The number of heat sinks 100 can be set to correspond to the heat conducting components one by one, and the number of heat sinks 100 can also be set to be less than the number of heat conducting components, as long as the use requirements of the device can be met. The specific setting situation should be selected according to the use environment of the device, so as to improve the applicability and application range of the device.

[0077] In the present application, the heat sink 100 is specifically a heat dissipation fan. The above structure is simple, which not only facilitates the installation between components, but also improves the assembly efficiency and reduces the use cost of the device.

[0078] By applying the technical solution of the utility model, a support member 30 is arranged between the first side plate 10 and the second side plate 20, and the support member 30 has a first side arranged relative to the first side plate 10, and a second side arranged relative to the second side plate 20, at least one of the first side and the second side is spaced apart from the inner side wall of the first side plate 10 and the inner side wall of the second side plate 20, and the heat insulating member 40 is arranged in the above-mentioned space, so that the heat of the first side plate 10 and the heat of the second side plate 20 can be prevented from being mutually conducted, thereby being able to It is able to prevent the battery cell 90 from transferring heat to other battery cells 90 when thermal runaway occurs, and the support member 30 and the heat insulating member 40 divide the space between the first side plate 10 and the second side plate 20 into a plurality of heat conduction channels 50, and the outer side wall of the first side plate 10 and the outer side wall of the second side plate 20 are respectively connected to the side walls of the battery cell 90, so that the first side plate 10 and the second side plate 20 can exchange heat with the battery cell 90, thereby improving the heat dissipation effect of the heat sink 100 on the battery cell 90 and ensuring the heat dissipation efficiency of the battery cell 90.

[0079] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0080] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0081] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0082] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0083] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0084] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat-conducting component, arranged between two adjacent battery cells, characterized in that: The heat conducting component comprises: A first side plate, wherein an outer side wall of the first side plate is connected to a side wall of one of the battery cells; A second side plate, spaced apart from the first side plate, an outer side wall of the second side plate being connected to a side wall of another of the battery cells; a support member, arranged between the first side plate and the second side plate, the support member extending along the length direction of the first side plate, the support member having a first side arranged relative to the first side plate, and a second side arranged relative to the second side plate, the first side and / or the second side being spaced apart from the inner side wall of the first side plate and the inner side wall of the second side plate; a heat insulating member, arranged at a gap between the supporting member and the first side plate and / or the second side plate; Wherein, the support member cooperates with the heat insulating member to divide the space between the first side plate and the second side plate into a plurality of heat conduction channels.

2. The heat conducting component according to claim 1, characterized in that: The heat conduction component further includes an adjusting member, which is rotatably disposed in the heat conduction channel, wherein a rotation axis of the adjusting member is parallel to a width direction of the first side plate, and the adjusting member is used to adjust a flow rate of a medium in the heat conduction channel.

3. The heat conducting component according to claim 2, characterized in that: The thermally conductive component further comprises: A transmission rod is connected to the adjusting member along the rotation axis of the adjusting member, the transmission rod and the adjusting member can rotate synchronously, and the rotation axis of the transmission rod coincides with the rotation axis of the adjusting member; A driving member, wherein a driving end of the driving member is connected to the transmission rod to drive the transmission rod and the adjusting member to rotate synchronously.

4. The heat conducting component according to claim 2, characterized in that: The adjusting member has a first position and a second position which are arranged opposite to each other. When the adjusting member is located at the first position, the medium flow in the heat conduction channel is the smallest, and the cross section of the adjusting member along the thickness direction of the first side plate is a first cross section. When the adjusting member is located at the second position, the medium flow in the heat conduction channel is maximum, the cross section of the adjusting member along the thickness direction of the first side plate is a second cross section, and the cross-sectional area of ​​the first cross section is greater than the cross-sectional area of ​​the second cross section.

5. The heat conducting component according to claim 3, characterized in that: There are a plurality of the adjusting members, and the plurality of the adjusting members are arranged in a one-to-one correspondence with the plurality of the heat conduction channels.

6. The heat conducting component according to any one of claims 1 to 5, characterized in that: The first side and the first side plate are an integrally formed structure or the second side and the second side plate are an integrally formed structure.

7. The heat conducting component according to any one of claims 1 to 5, characterized in that: The extension length of the support member is the same as the extension length of the first side plate.

8. The heat conducting component according to any one of claims 1 to 5, characterized in that: The included angle between the support member and the first side plate and / or the second side plate is a right angle.

9. The heat conducting component according to any one of claims 1 to 5, characterized in that: The extension length of the heat insulating member along the length direction of the first side plate is L, 1mm≤L≤3mm.

10. The heat conducting component according to any one of claims 1 to 5, characterized in that: The heat insulating member is a porous structure.

11. The heat conducting component according to any one of claims 1 to 5, characterized in that: The angle between the support member and the first side plate and / or the second side plate is an acute angle or an obtuse angle.

12. The heat conducting component according to any one of claims 1 to 5, characterized in that: The heat conduction channel includes an air cooling channel or a liquid cooling channel.

13. A battery module, characterized in that: The battery module comprises: A thermally conductive component as claimed in any one of claims 1 to 12; A plurality of battery cells are arranged at intervals, and the heat-conducting component is disposed between the intervals between two adjacent battery cells, and the outer side wall of the first side plate of the heat-conducting component is connected to the side wall of one of the battery cells, and the outer side wall of the second side plate of the heat-conducting component is connected to the side wall of another battery cell, and the heat-conducting component exchanges heat with the adjacent battery cells through the plurality of heat-conducting channels of the heat-conducting component.

14. The battery module according to claim 13, characterized in that: The heat-conducting component has an inlet and an outlet arranged opposite to each other along the heat-conducting channel, and the battery module further comprises: A heat sink is arranged at the inlet and / or the outlet, and a medium flow direction of the heat sink is parallel to a medium flow direction in the heat conduction channel.

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