Battery module frame and battery module

Abstract

The utility model provides a battery module frame and a battery module, which are used for fixing a plurality of battery cells and assisting in heat dissipation, and comprise a heat conduction structure, a heat dissipation bottom plate and two heat dissipation end plates, the heat conduction structure comprises a heat conduction main plate and a plurality of heat conduction side plates, the plurality of heat conduction side plates are arranged at intervals and are vertically arranged on one side of the heat conduction main plate, the heat conduction side plates are intensively arranged in the middle of the heat conduction main plate, and one or more battery cells are clamped between two adjacent heat conduction side plates; the heat dissipation bottom plate is attached to the other side of the heat conduction mainboard; the heat conduction side plates at the two ends of the heat conduction structure are attached to one sides of the two heat dissipation end plates correspondingly. And heat generated by the battery cell can be conducted to the two heat dissipation end plates and the heat dissipation bottom plate through the heat conduction structure. By arranging the heat dissipation bottom plate and the heat dissipation end plate, heat, guided out through the heat conduction structure, of the middle battery cell can be taken away by the heat dissipation bottom plate and the heat dissipation end plate, so that the temperature of the middle of the battery cell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery field especially relates to a battery module frame and battery module. BACKGROUND

[0002] The battery module is composed of multiple battery cells, and each battery cell generates heat during operation, especially in a long-time high-power working state. The chemical reaction and current conduction inside the battery cell can cause temperature rise. In the battery module, the battery cells are usually arranged closely, and the battery cells in the middle of the module are difficult to dissipate heat. The peripheral battery cells can dissipate heat more effectively through contact with the outside world, while the middle battery cells are surrounded by other battery cells, and the heat is not easily dissipated, which can cause the temperature of the middle battery cells to be higher than that of the peripheral battery cells. Long-term local overheating can accelerate the aging of the battery cells and reduce the service life of the battery. Moreover, when the temperature of the battery cells is too high, the discharge efficiency and charging efficiency of the battery will decrease, affecting the overall performance of the equipment. More seriously, if the internal temperature of the battery is not uniform and the local overheating is serious, the battery cells may experience thermal runaway, which can even cause a fire or explosion.

[0003] The existing battery module mainly uses air cooling and liquid cooling for heat dissipation. Air cooling is to use fans or natural air flow to carry away heat. This method is suitable for low-power battery systems, but for the middle battery cells, the efficiency of air flow is low, and it cannot fully cover the entire battery module, resulting in uneven heat dissipation. Liquid cooling is to use liquid (such as coolant or deionized water) to flow inside the battery module to carry away heat. The liquid cooling system is usually installed at the bottom or around the battery cells, but the direct effect of the liquid cooling system on the middle battery cells is weak, which can easily cause insufficient heat dissipation in the middle.

[0004] In summary, the existing heat dissipation methods cannot provide good heat dissipation effect for the middle battery cells. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a heavy truck battery module frame and a heavy truck battery module to solve the problem that the existing heat dissipation method cannot provide good heat dissipation effect for the middle battery cells.

[0006] To achieve the above object, the utility model discloses a first aspect provides a kind of battery module frame, for fixing and assisting heat dissipation to multiple electric cores, comprising: heat conduction structure, heat dissipation bottom plate and two heat dissipation end plates;Wherein, the heat conduction structure includes heat conduction main plate and several heat conduction side plates, several heat conduction side plates are arranged at intervals and vertically arranged in the side of heat conduction main plate, and heat conduction side plate is respectively arranged in the both ends and middle part of heat conduction main plate, and one or more electric cores are clamped between two adjacent heat conduction side plates;The heat dissipation bottom plate and the other side of heat conduction main plate are mutually attached;The heat conduction side plate of heat conduction structure both ends is respectively mutually attached with the side of the two heat dissipation end plates;The heat generated by electric core can be conducted to two heat dissipation end plates and heat dissipation bottom plate through heat conduction structure.

[0007] In an embodiment of the first aspect of the application, the heat conduction structure surface is covered with a layer of graphite film.

[0008] In an embodiment of the first aspect of the application, the heat conduction structure is an integrally formed graphite structure.

[0009] In an embodiment of the first aspect of the application, between every two adjacent electric cores without heat conduction side plate spacing, a heat insulation pad is arranged to avoid direct contact between the surfaces of adjacent electric cores.

[0010] In an embodiment of the first aspect of the application, the heat dissipation bottom plate is a liquid cooling plate, and the liquid cooling plate comprises a body, a water inlet and a water outlet.

[0011] In an embodiment of the first aspect of the application, a plurality of heat dissipation fins are vertically arranged on the other side of the heat dissipation end plate.

[0012] To achieve the above object and other related purposes, the second aspect of the application provides a kind of battery module, comprising: any one of the battery module frame of the first aspect of the application and several electric cores.

[0013] In an embodiment of the second aspect of the application, it further includes a tie, and the tie encloses the end of the battery module away from the heat dissipation bottom plate and fixes the electric cores and the battery module frame.

[0014] In an embodiment of the second aspect of the application, the surface of the electric core is an aluminum shell structure.

[0015] In an embodiment of the second aspect of the application, the battery module can accommodate single-row or multi-row electric cores in the width direction.

[0016] As described above, the utility model relates to a kind of battery module frame and battery module, with the following beneficial effects:

[0017] The battery module frame provided by the application is used for fixing a plurality of battery cells and assisting heat dissipation, and comprises a heat conduction structure, a heat dissipation bottom plate and two heat dissipation end plates. The heat conduction structure comprises a heat conduction main plate and a plurality of heat conduction side plates. The plurality of heat conduction side plates are arranged at intervals and vertically arranged on one side of the heat conduction main plate, and the heat conduction side plates are centrally arranged on the middle part of the heat conduction main plate, and one or more battery cells are clamped between two adjacent heat conduction side plates. By centrally arranging the heat conduction side plates on the middle part of the heat conduction main plate where the heat is more concentrated, the heat generated by the middle battery cells can be conducted to other low-temperature areas of the heat conduction structure. The heat dissipation bottom plate is in close contact with the other side of the heat conduction main plate. The heat conduction side plates at both ends of the heat conduction structure are in close contact with one side of the two heat dissipation end plates, respectively. The heat generated by the battery cells can be conducted to the two heat dissipation end plates and the heat dissipation bottom plate through the heat conduction structure. By arranging the heat dissipation bottom plate and the heat dissipation end plate, the heat of the middle battery cells conducted through the heat conduction structure can be taken away by the heat dissipation bottom plate and the heat dissipation end plate, so as to reduce the temperature of the middle part of the battery cells.

[0018] Similarly, the battery module provided by the application adds battery cells on the basis of the foregoing battery module frame, and preferably sets the shell of the battery cell as an aluminum shell, so that the heat conduction can be better promoted, the heat can be quickly conducted from the battery cell to the two heat dissipation end plates and the heat dissipation bottom plate through the heat conduction structure, and the heat dissipation effect on the middle part of the battery cell can be better achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic diagram of the heat conduction structure in an embodiment of the application is shown.

[0020] Figure 2 The structure and assembly schematic diagram of the heat conduction structure and the heat insulation pad in an embodiment of the application is shown.

[0021] Figure 3 The structure and assembly schematic diagram of the heat conduction structure and the heat dissipation bottom plate in an embodiment of the application is shown.

[0022] Figure 4 The structure and assembly schematic diagram of the heat conduction structure and the heat dissipation end plate in an embodiment of the application is shown.

[0023] Figure 5 The structure schematic diagram of the battery module in an embodiment of the application is shown.

[0024] ELEMENT NUMBER EXPLANATION

[0025] 1 heat conduction structure

[0026] 11 heat conduction main plate

[0027] 12 heat conduction side plate

[0028] 2 heat insulation pad

[0029] 21 Border

[0030] 22 Aerogel

[0031] 3 Heat dissipation base plate

[0032] 4 Heat dissipation end plate

[0033] 41 Heat dissipation fins

[0034] 5 battery cells

[0035] 6 Cable ties Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0037] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" when used herein, specify the presence of stated features, operations, elements, components, items, kinds and / or groups but do not preclude the presence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups thereof. As used herein, the terms "or" and "and / or" are to be interpreted as inclusive, i.e., as meaning one or any combination of the items. Thus, "A, B or C" or "A, B and / or C" means any of the following: A; B; C; A and B; A and C; B and C; A, B and C. An exception to this definition will occur only when a combination of elements, functions, or operations are in some way inherently mutually exclusive.

[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the further detailed description of the technical solutions in the embodiments of the present application will be given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0041] To achieve the above object, the first aspect of the present application provides a battery module frame for fixing and assisting heat dissipation of a plurality of battery cells 5, comprising: a heat conduction structure 1, a heat dissipation bottom plate 3 and two heat dissipation end plates 4.

[0042] As shown in Figure 1 The heat conduction structure 1 comprises a heat conduction main plate 11 and a plurality of heat conduction side plates 12. The plurality of heat conduction side plates 12 are arranged at intervals and vertically arranged on one side of the heat conduction main plate 11, and the heat conduction side plates 12 are arranged at both ends and the middle of the heat conduction main plate 11, and one or more battery cells 5 are clamped between two adjacent heat conduction side plates 12. The heat dissipation bottom plate 3 is attached to the other side of the heat conduction main plate 11.

[0043] Preferably, in an embodiment of the first aspect of the present application, the surface of the heat conduction structure 1 is covered with a layer of graphite film.

[0044] Preferably, in an embodiment of the first aspect of the present application, the heat conduction structure 1 is an integrally formed graphite structure.

[0045] It should be understood that the graphite material has the characteristics of in-plane high thermal conductivity and interlayer thermal diffusion. The in-plane high thermal conductivity refers to the fact that the graphite material has a very high thermal conductivity coefficient in the two-dimensional plane direction (in-plane), which can generally reach 1500 W / mK. This means that when the graphite sheet is used above or beside the heat-generating element, heat can quickly spread in the plane, avoiding concentration in one point. This uniform heat conduction can quickly reduce the local temperature and reduce heat accumulation, thereby effectively protecting the core components in the device from overheating. The interlayer thermal diffusion refers to the fact that although the interlayer thermal conductivity of graphite (about 20 W / mK) is not as high as the in-plane thermal conductivity, the interlayer thermal conduction also plays a role in buffering and heat dissipation, which is particularly important in scenarios where heat needs to be evenly dissipated from multiple directions. This interlayer thermal diffusion characteristic allows heat to spread from the battery cell 5 to the heat dissipation bottom plate 3 below it and dissipate into the air or other medium via the heat dissipation bottom plate 3. In addition, graphite also has the characteristics of light weight, good flexibility, high temperature resistance, and corrosion resistance. Specifically, in terms of weight, the density of graphite material is significantly lower than that of traditional metal materials such as copper and aluminum, especially in electronic products with high lightweight requirements. In terms of flexibility, graphite film is very soft and can closely fit the surface of any shape of the device. Its flexibility not only ensures the maximum contact area, but also improves the effective conduction of heat. Moreover, graphite film can be made to a micron level thickness, which improves the heat dissipation performance without occupying internal space of the device. Therefore, based on the flexibility of graphite, graphite is easy to process and assemble, and graphite film can be cut into any shape and size according to different needs, so that it can be easily integrated into various devices without interfering with other functional modules. In terms of high temperature resistance and corrosion resistance, graphite can withstand temperatures as high as 3000°C without melting, with excellent high temperature resistance. At the same time, graphite has good oxidation resistance in most environments and is not easily corroded or oxidized, making it suitable for long-term use in harsh conditions. Compared with other materials that are easily affected by the environment, graphite can significantly improve the service life of the heat dissipation assembly.

[0046] When a graphite film is coated onto the outer surface of the heat-conducting structure 1, the heat-conducting structure 1 can be made of metal materials with good thermal conductivity, such as aluminum or copper. The graphite film, as a heat-conducting layer, is attached to the surface of the heat-conducting structure 1, playing a highly efficient role in in-plane heat conduction. This solution, because it only involves coating with a single layer of graphite film, is generally less expensive than a one-piece graphite structure. Furthermore, the graphite film has a very high in-plane thermal conductivity (approximately 1500 W / mK), which can quickly diffuse heat in the horizontal plane, reducing localized high temperatures and thus not significantly affecting the in-plane heat dissipation effect. However, because heat conduction in the thickness direction requires passing through both the aluminum or copper heat-conducting structure 1 and the graphite film, some thermal resistance may be created, reducing the thermal conductivity in the thickness direction. Consequently, the heat from the battery cell 5 cannot be smoothly conducted to the heat dissipation base plate 3 below through the graphite film and heat-conducting structure 1, reducing the contribution of the heat dissipation base plate 3 to heat dissipation.

[0047] When the heat-conducting structure 1 is a one-piece graphite structure, that is, the entire heat-conducting structure 1 is directly manufactured from graphite material as a whole. This design eliminates the thermal resistance problem caused by the graphite film attachment method used in the previous embodiment, and enables continuous heat conduction in the thickness direction, thereby improving the efficiency of heat conduction from the battery cell 5 to the heat dissipation base plate 3. Furthermore, the one-piece structure is less prone to delamination or adhesion problems, and can maintain stable thermal conductivity during long-term use, making it suitable for applications in high-temperature and harsh environments, and enhancing the durability of the structure. However, this structure requires more graphite material and has a complex manufacturing process, resulting in higher manufacturing costs.

[0048] like Figure 2 As shown, in one embodiment of the first aspect of this application, a heat insulation pad 2 is provided between two adjacent battery cells 5 that are not separated by heat-conducting side plates 12, so as to avoid direct contact between the surfaces of adjacent battery cells 5.

[0049] It should be understood that the thermal insulation pad 2 refers to a layer of material used to isolate the heat conduction between the battery cells 5, and the main function is to prevent heat from directly transferring between the battery cells 5 in the case of adjacent arrangement of multiple battery cells 5, so as to ensure the safety and temperature balance of the battery pack. The battery cells 5 will generate heat during charging and discharging, and if there is no thermal insulation pad 2, the heat is easy to quickly transfer from one battery cell 5 to the adjacent battery cell 5, which may cause the temperature of the entire battery pack to rise rapidly, affecting the battery life and even causing thermal runaway. The thermal insulation pad 2 can effectively slow down the speed of temperature transfer by isolating the heat conduction between the battery cells 5. It should be understood that thermal runaway refers to a phenomenon in which the temperature of the battery rises rapidly, the electrolyte decomposes, and a large amount of heat and gas is released. The thermal insulation pad 2 forms a physical isolation layer between the battery cells 5, which can block part of the propagation path of thermal runaway, providing a layer of safety protection for the battery pack to prevent the rapid spread of thermal runaway to other battery cells 5 once it occurs. Moreover, by setting the thermal insulation pad 2, it can also help the battery system to maintain uniform temperature distribution, prevent some battery cells 5 from being too high or too low in temperature, and affect the performance of the entire battery pack, which is particularly important for prolonging the cycle life of the battery and improving its performance.

[0050] Preferably, in an embodiment of the first aspect of the present application, the thermal insulation pad 2 is composed of an outer frame and an aerogel 22 pad, the outer frame is vertically arranged on one side of the heat conduction main plate 11 of the heat conduction structure 1, that is, the outer frame is located on the same side of the heat conduction main plate 11 as the heat conduction side plate 12, and the hollow part of the outer frame is filled with the aerogel 22 pad. The aerogel 22 is injected into the hollow part of the outer frame in a liquid or semi-solid state, and after drying or solidification, a solid aerogel 22 is formed which is tightly combined with the outer frame. This way can make the aerogel 22 fill the gap of the frame and form a very stable overall structure. In addition, the aerogel 22 and the outer frame can also be fixed by the following methods: one is the film fixing method, that is, a layer of film (such as high-temperature resistant polyester film or Teflon film) is coated on the surface of the aerogel 22, and then the edge of the film is fixed with the frame 21. This film can keep the aerogel 22 in the frame and protect the surface of the aerogel 22 from direct contact with the outside. The second is the adhesive fixing method, that is, a special high-temperature resistant and heat-conductive adhesive is used to bond and fix the edge of the aerogel 22 with the inner side of the outer frame. The adhesive only needs to be applied to the part where the aerogel 22 and the outer frame contact to ensure that the aerogel 22 is firmly combined with the outer frame. It should be understood that the aforementioned fixing method of the aerogel 22 and the outer frame does not constitute a limitation on the fixing method of the aerogel 22 and the outer frame in the present application, and all methods that can fix the aerogel 22 on the outer frame fall within the scope of the present application. Moreover, it should be understood that the thermal insulation pad 2 can adopt other design structures in addition to the combination of the outer frame and the aerogel 22, as long as the thermal insulation structure can isolate the heat conduction between the two adjacent battery cells 5, which falls within the protection scope of the present application.

[0051] AsFigure 3 As shown in the embodiment of the first aspect of the present application, the heat dissipation base plate 3 is a liquid cooling plate, which comprises a body, an inlet and an outlet.

[0052] The body of the liquid cooling plate is internally provided with a flow channel or a cavity, which is made of a material with good thermal conductivity, such as copper or aluminum alloy. The flow channel or cavity is connected with the inlet and the outlet. The cooling liquid can enter the flow channel or cavity through the inlet, and the heat of the liquid cooling plate can be taken away through the heat exchange between the cooling liquid and the flow channel or cavity, and then discharged from the outlet. After the cooling liquid is cooled outside the liquid cooling plate, it reflows into the body of the liquid cooling plate, i.e. the flow channel or cavity in the body, to take away the heat of the body again, and the cycle is repeated. In this way, the heat generated by the battery cell 5 and transferred to the heat dissipation base plate 3 through the heat conduction structure 1 can be taken away more quickly.

[0053] As shown in the embodiment of the first aspect of the present application, the heat dissipation base plate 3 is a liquid cooling plate, which comprises a body, an inlet and an outlet. Figure 4 As shown in the embodiment of the first aspect of the present application, the heat dissipation base plate 3 is a liquid cooling plate, which comprises a body, an inlet and an outlet.

[0054] In an embodiment of the first aspect of the present application, a plurality of heat dissipation fins 41 are vertically arranged on the other side of the heat dissipation end plate 4.

[0055] It should be understood that the side of the heat dissipation end plate 4 that is in close contact with the heat conduction side plate 12 at both ends of the heat conduction structure 1 is a smooth plane, so as to ensure that the heat dissipation end plate 4 and the heat conduction structure 1 can be closely attached, reduce the contact thermal resistance, and make the heat more directly and quickly transferred from the heat conduction structure 1 to the heat dissipation end plate 4. A plurality of heat dissipation fins 41 are arranged on the other side of the heat dissipation end plate 4. It should be understood that the heat dissipation fin 41 is a commonly used heat dissipation enhancement design, which can greatly improve the heat dissipation efficiency by increasing the surface area of the air contact. The plurality of vertical heat dissipation fins 41 arranged on the other side of the heat dissipation end plate 4 effectively increase the total surface area of the heat dissipation end plate 4, so that more heat can be dissipated through air convection and radiation in a shorter time. Moreover, the vertically arranged heat dissipation fins 41 form air channels in the air, which are beneficial to natural convection or air cooling, so that the cold air can more easily flow through the surface of the heat dissipation fins 41 to take away the heat. Under the condition of ventilation, this design can further improve the heat dissipation efficiency.

[0056] To achieve the above object and other related objects, the second aspect of the present application provides a battery module, which comprises the battery module frame of any one of the first aspect of the present application and a plurality of battery cells 5.

[0057] In an embodiment of the second aspect of the present application, a cable tie 6 is further included, which encloses an end of the battery module away from the heat dissipation base plate 3 and fixes the battery cell 5 and the battery module frame.

[0058] As shown in Figure 5 The cable tie 6 encloses the battery module frame and the battery cell 5, so that the battery cell 5 can be fixed on the battery module frame to reduce displacement and shaking. When there are multiple rows of battery cells 5 in the width direction, one cable tie 6 can be used to bundle one row of battery cells 5, or one cable tie 6 can be used to bundle multiple rows of battery cells 5 (not shown). It should be understood that the foregoing bundling method of the cable tie 6 for the battery module and the battery cell 5 does not constitute a limitation on the bundling method of the cable tie 6 of the present application, and all conventional methods known to those skilled in the art for bundling and fixing the battery cell 5 module using the cable tie 6 fall within the protection scope of the present application.

[0059] In an embodiment of the second aspect of the present application, the surface of the battery cell 5 is an aluminum shell structure.

[0060] In an embodiment of the second aspect of the present application, the battery module can accommodate single or multiple rows of battery cells 5 in the width direction.

[0061] In summary, the present application effectively overcomes the shortcomings of the prior art and has a high industrial utilization value.

[0062] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A battery module frame for fixing a plurality of battery cells (5) and assisting heat dissipation, characterized by, The application relates to a battery module frame. The battery module frame comprises a heat-conducting structure (1), a heat-dissipating bottom plate (3) and two heat-dissipating end plates (4); wherein the heat-conducting structure (1) comprises a heat-conducting main plate (11) and a plurality of heat-conducting side plates (12), the heat-conducting side plates (12) are arranged at intervals and vertically arranged on one side of the heat-conducting main plate (11), and the heat-conducting side plates (12) are arranged at two ends and the middle of the heat-conducting main plate (11) respectively, one or more battery cells (5) are arranged between two adjacent heat-conducting side plates (12); the heat-dissipating bottom plate (3) is attached to the other side of the heat-conducting main plate (11); the heat-conducting side plates (12) at two ends of the heat-conducting structure (1) are respectively attached to one side of the two heat-dissipating end plates (4); the heat generated by the battery cells (5) can be conducted to the two heat-dissipating end plates (4) and the heat-dissipating bottom plate (3) through the heat-conducting structure (1).

2. The battery module frame of claim 1, wherein, The heat-conducting structure (1) is covered with a layer of graphite film.

3. The battery module frame of claim 1, wherein, The heat-conducting structure (1) is an integrally-formed graphite structure.

4. The battery module frame of claim 1, wherein, A heat-insulating pad (2) is arranged between two adjacent battery cells (5) without heat-conducting side plates (12) arranged at intervals, so as to avoid the direct contact between the surfaces of the adjacent battery cells (5).

5. The battery module frame of claim 1, wherein, The heat-dissipating bottom plate (3) is a liquid-cooled plate, and the liquid-cooled plate comprises a body, a water inlet and a water outlet.

6. The battery module frame of claim 1, wherein, A plurality of heat-dissipating fins (41) are vertically arranged on the other side of the heat-dissipating end plate (4).

7. A battery module, characterized by The application relates to a battery module frame. The battery module frame comprises a heat-conducting structure (1), a heat-dissipating bottom plate (3) and two heat-dissipating end plates (4); wherein the heat-conducting structure (1) comprises a heat-conducting main plate (11) and a plurality of heat-conducting side plates (12), the heat-conducting side plates (12) are arranged at intervals and vertically arranged on one side of the heat-conducting main plate (11), and the heat-conducting side plates (12) are arranged at two ends and the middle of the heat-conducting main plate (11) respectively, one or more battery cells (5) are arranged between two adjacent heat-conducting side plates (12); the heat-dissipating bottom plate (3) is attached to the other side of the heat-conducting main plate (11); the heat-conducting side plates (12) at two ends of the heat-conducting structure (1) are respectively attached to one side of the two heat-dissipating end plates (4); the heat generated by the battery cells (5) can be conducted to the two heat-dissipating end plates (4) and the heat-dissipating bottom plate (3) through the heat-conducting structure (1).

8. The battery module of claim 7, wherein, The heat-conducting structure (1) is covered with a layer of graphite film.

9. The battery module of claim 8, wherein, The heat-conducting structure (1) is an integrally-formed graphite structure.

10. The battery module of claim 9, wherein, A heat-insulating pad (2) is arranged between two adjacent battery cells (5) without heat-conducting side plates (12) arranged at intervals, so as to avoid the direct contact between the surfaces of the adjacent battery cells (5). The heat-dissipating bottom plate (3) is a liquid-cooled plate, and the liquid-cooled plate comprises a body, a water inlet and a water outlet. A plurality of heat-dissipating fins (41) are vertically arranged on the other side of the heat-dissipating end plate (4). The application relates to a battery module frame. The battery module frame comprises a heat-conducting structure (1), a heat-dissipating bottom plate (3) and two heat-dissipating end plates (4); wherein the heat-conducting structure (1) comprises a heat-conducting main plate (11) and a plurality of heat-conducting side plates (12), the heat-conducting side plates (12) are arranged at intervals and vertically arranged on one side of the heat-conducting main plate (11), and the heat-conducting side plates (12) are arranged at two ends and the middle of the heat-conducting main plate (11

Images