Battery pack structure capable of effectively soaking and guiding heat dissipation

Abstract

The utility model relates to a battery pack structure capable of effectively soaking and guiding heat dissipation. The battery pack structure comprises a battery cell module, the battery cell module comprises a plurality of battery cells arranged in the bracket; battery cell vacant areas are formed among the battery cells; a busbar is arranged at the end part of the battery cell; an insulating sheet is arranged at one end, far away from the battery core, of the busbar; the battery cell module is connected with a soaking assembly; and the soaking assembly comprises a special-shaped column inserted into the cell vacant area. According to the utility model, the abutting surface on the extension column is attached to the outer end surface of the battery cell, so that accurate positioning and fixing are realized, and heat conduction is facilitated; the glue storage tank stores heat-conducting glue, and a heat dissipation path is optimized; the leakage window controls overflow of the heat-conducting glue, so that the surface of the cell is uniformly covered, and the heat dissipation uniformity and effectiveness are improved. The first soaking body quickly absorbs and uniformly disperses battery heat, reduces temperature difference, improves battery performance and service life, maintains stable working temperature of the battery, and improves charge-discharge efficiency and cycle stability. The special-shaped columns increase the heat dissipation area, guide heat transfer and improve the heat dissipation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery field especially relates to an effective even heat guide heat dissipation's battery package structure. BACKGROUND

[0002] With the progress and development of society, the intelligentization of storage, family, travel and the diversification of mobile consumer electronics, batteries as the provider of clean energy, make it more and more by the majority of consumers and favor, become an indispensable part of electronic products. In the application process, through the distribution of high-density electric core, the application of high-power equipment, cause the use of high-power scene, too much heat production becomes the technical problem that battery package needs to solve. UTILITY MODEL CONTENT

[0003] In order to solve the above problems of prior art, the utility model provides an effective even heat guide heat dissipation's battery package structure.

[0004] In order to achieve the above purpose, the utility model adopts the main technical scheme includes:

[0005] An effective even heat guide heat dissipation's battery package structure, including electric core module, the electric core module includes the electric core of a plurality of electric core that is arranged in the support, the electric core is formed with electric core empty area between the electric core, the end of the electric core is equipped with the busbar, the one end of the busbar is equipped with the insulating sheet away from the electric core, the electric core module is connected with even heat subassembly, the even heat subassembly includes the special-shaped column that inserts electric core empty area.

[0006] In an embodiment of the utility model, one side of the electric core module is equipped with the protection board, the support is arranged at the both ends of the electric core, and the support is fixed through the screw between the support.

[0007] In an embodiment of the utility model, the support includes the extension column that inserts electric core empty area, and the special-shaped column is located in the extension column.

[0008] In an embodiment of the utility model, the electric core is cylindrical electric core, the extension column includes the abutment surface that is attached with the outer end surface of the electric core, the extension column is equipped with the rubber storage groove that cooperates with the special-shaped column in the inside, the rubber storage groove is equipped with the heat conduction glue in the rubber storage groove, and the abutment surface is equipped with the leakage window for spilling the heat conduction glue to the surface of the electric core when the special-shaped column cooperates with the rubber storage groove.

[0009] In an embodiment of the utility model, the even heat subassembly includes the first even heat body that is packaged in the first packaging piece, and the bottom of the first packaging piece is equipped with the special-shaped column.

[0010] In an embodiment of the utility model, the heat equalizing assembly is provided with one on both ends of the battery cell module, the first packaging piece comprises a heat conducting plate, the top of the heat conducting plate is provided with a sealing plate, and the heat conducting plate and the sealing plate form a cavity for accommodating the first heat equalizing body.

[0011] In an embodiment of the utility model, the inner side of the heat conducting plate is provided with a supporting column, the side of the supporting column away from the heat conducting plate is provided with a heat conducting patch, the heat conducting patch abuts on the sealing plate, the supporting column is arranged opposite the special-shaped column, and the side of the sealing plate away from the heat conducting plate is provided with heat conducting glue.

[0012] In an embodiment of the utility model, the heat conducting plate is provided with a through hole for leading the first heat equalizing body into the cavity, the through hole is provided with a plug for sealing the through hole, and the first heat equalizing body is water.

[0013] In an embodiment of the utility model, the side of the sealing plate away from the heat conducting plate is provided with a positioning pin.

[0014] In an embodiment of the utility model, the battery cell module is externally provided with an upper cover and a bottom shell, the upper cover and the bottom shell are fixed and packaged outside the battery cell module by screws to form a battery pack assembly, the upper cover and the bottom shell are provided with positioning grooves matched with the positioning pins, and the middle parts of the upper cover and the bottom shell are provided with heat dissipation fins.

[0015] The utility model has the advantages that the abutting surface on the extension column is attached to the outer end surface of the battery cell, accurate positioning and fixing are realized, and heat conduction is facilitated; the storage glue groove stores heat conducting glue, and the heat dissipation path is optimized; the leakage window controls the overflow of the heat conducting glue, ensures uniform coverage of the surface of the battery cell, and improves heat dissipation uniformity and effectiveness. The first heat equalizing body quickly absorbs and uniformly disperses battery heat, reduces temperature difference, improves battery performance and service life, maintains stable battery working temperature, and improves charging and discharging efficiency and cycle stability. The special-shaped column increases the heat dissipation area, guides heat transfer, optimizes the installation structure, improves the heat dissipation efficiency, and ensures the battery module thermal management effect. The supporting column provides internal support, enhances the strength of the packaging piece, and positions the special-shaped column; the heat conducting patch enhances the heat conduction performance between the supporting column and the sealing plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is the utility model battery cell module perspective view;

[0018] Figure 2 is an explosion view of the battery cell module of the utility model;

[0019] Figure 3 is the utility model Figure 2 A part of the enlarged view of the middle;

[0020] Figure 4 is the utility model even heat subassembly perspective drawing;

[0021] Figure 5 is the utility model even heat subassembly explosion view;

[0022] Figure 6 is the utility model battery pack assembly explosion view;

[0023] Figure 7 is the utility model battery pack assembly cross section view;

[0024] Mark explanation:

[0025] 100, battery cell module;110, battery cell;111, battery cell empty area;120, support;121, extension column;122, abutment surface;123, leakage window;130, bus;140, insulating sheet;150, protection plate;160, screw;200, even heat subassembly;210, first packaging piece;211, heat conduction plate;212, sealing plate;213, support column;214, heat conduction paste;215, through hole;216, plug;220, first even heat body;230, special-shaped column;240, heat conduction glue;250, positioning pin;300, battery pack assembly;310, upper cover;320, bottom shell;330, heat dissipation fin. Specific implementation

[0026] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will be combined with the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents the selected embodiment of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0027] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "two ends", "one end", "the other end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate with a particular orientation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "installation", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Embodiment:

[0030] As Figures 1-2 Indicated, an effective heat conduction heat dissipation battery pack structure, including the battery cell module 100;The battery cell module 100 includes the battery cell 110 arranged in the support 120;The support 120 is used for fixing and supporting the battery cell 110, so that the battery cell 110 keeps relatively stable position, prevents the battery cell 110 from being damaged due to shaking, collision and the like in use process, and simultaneously provides certain structural strength for the whole battery pack.

[0031] The battery cell 110 is the core component of the battery pack, is the carrier of storing and releasing electric energy, and provides the required electric power for electronic products;The battery cell 110 is formed with the battery cell empty area 111;In an embodiment, the battery cell 110 is cylindrical battery cell, when several battery cells 110 are combined, the cylindrical battery cell 110 cannot be closely fitted, and the battery cell empty area 111 is naturally formed;

[0032] The end of the battery cell 110 is provided with busbar 130;Busbar 130 is used for connecting each battery cell 110, realizing the electrical connection between the battery cell 110, so that electric energy can be effectively transmitted and distributed between the battery cell 110, and the consistency and stability of the overall performance of the battery pack are ensured. The end of the busbar 130 away from the battery cell 110 is provided with insulating sheet 140;The insulating sheet 140 separates the busbar 130 from other components, prevents short circuit, and improves the safety and reliability of the battery pack.

[0033] The even-heating assembly 200 is connected to the battery cell module 100; the even-heating assembly 200 includes a special-shaped column 230 inserted into the battery cell empty area 111; the special-shaped column 230 inserted into the battery cell empty area 111 can increase the contact area with the battery cell 110, effectively guide and conduct the heat generated by the battery cell 110, make the heat evenly distributed in the battery pack, avoid local overheating, improve the overall heat dissipation effect of the battery pack, prolong the service life of the battery, and improve the battery performance and safety; in an embodiment, the special-shaped column 230 is made of metal aluminum.

[0034] In an embodiment, the battery cell module 100 is provided with a protection plate 150 on one side; the support 120 is arranged at both ends of the battery cell 110, and the supports 120 are fixed by screws 160.

[0035] In an embodiment, the support 120 includes an extension column 121 inserted into the battery cell empty area 111; the special-shaped column 230 is located in the extension column 121; the extension column 121 provides a precise positioning and mounting position for the special-shaped column 230, so that the special-shaped column 230 can be accurately inserted into the battery cell empty area 111, ensuring the accuracy and stability of the installation of the even-heating assembly 200. At the same time, the fixing effect of the extension column 121 on the special-shaped column 230 can prevent the special-shaped column 230 from being displaced due to vibration, shaking, etc. during the use of the battery pack, affecting the heat dissipation effect. On the other hand, when the special-shaped column 230 is made of metal aluminum, the extension column 121 can also avoid the direct contact between the special-shaped column 230 and the battery cell 110, causing damage to the battery cell 110;

[0036] The extension column 121 inserted into the battery cell empty area 111 shortens the heat conduction path between the special-shaped column 230 and the battery cell 110. The heat can be more directly and quickly transferred from the battery cell 110 to the special-shaped column 230, reducing the loss and accumulation of heat in the transfer process and improving the heat dissipation efficiency. Moreover, the extension column 121 can guide the heat to transfer along a specific direction, so that the heat can be more evenly distributed on the special-shaped column 230, and then the heat can be more effectively dissipated through the special-shaped column 230, avoiding local overheating of the battery cell 110.

[0037] As Figure 3As shown, in an embodiment, the battery cell 110 is a cylindrical battery cell; the extension column 121 comprises an abutting surface 122 which is attached to the outer end surface of the battery cell 110; the abutting surface 122 is attached to the outer end surface of the cylindrical battery cell 110, which can accurately position the battery cell 110 and keep it stable in the bracket 120, preventing it from shaking or rolling in the battery pack, enhancing the stability of the battery pack structure, and ensuring the reliability of the connection between the battery cells 110; the abutting surface 122 increases the contact area between the bracket 120 and the battery cell 110, which is beneficial to quickly conduct the heat generated by the battery cell 110 to the bracket 120, and then to the heat dissipation components such as the special-shaped column 230 through the extension column 121, improving the heat dissipation efficiency, which helps to maintain the battery cell 110 within the appropriate working temperature range, and improves the battery performance and service life.

[0038] The extension column 121 is internally provided with a glue storage groove matched with the special-shaped column 230; the glue storage groove is internally provided with a heat-conducting glue 240; the abutting surface 122 is provided with a leakage window 123 for overflowing the heat-conducting glue 240 to the surface of the battery cell 110 when the special-shaped column 230 is matched with the glue storage groove. When the special-shaped column 230 is matched with the glue storage groove, the leakage window 123 can accurately control the overflow of the heat-conducting glue 240 to the surface of the battery cell 110, ensuring that the heat-conducting glue 240 uniformly covers the parts of the battery cell 110 that need to be cooled, improving the uniformity and effectiveness of heat dissipation; and this structure can effectively reduce the amount of heat-conducting glue 240 used, and more accurately achieve the heat equalization effect through the overflow of the glue; for example, the heat release of the middle part of the battery cell module 100 is more difficult, the heat-conducting glue 240 in the glue storage groove can be used in a larger amount, and the size of the leakage window 123 can be set larger, so that the contact area of the middle battery cell 110 with the special-shaped column 230 is larger and the tightness of the contact is stronger, and the heat dissipation effect of the battery cell 110 located at the edge of the battery cell module 100 is better, which can appropriately reduce the amount of heat-conducting glue used in the glue storage groove.

[0039] In an embodiment, the heat-conducting glue 240 is in a state close to solid, and the heat-conducting coefficient is greater than 2W / (m.k), so as to facilitate the placement of the heat-conducting glue 240 and avoid its random flow, and the heat-conducting glue 240 can better adhere and fill between the battery cell 110 and the special-shaped column 230 after being pressed.

[0040] As shown in the drawings, Figure 4 As shown, in an embodiment, the heat equalization assembly 200 comprises a first heat equalization body 220 encapsulated in a first encapsulating member 210; the bottom of the first encapsulating member 210 is provided with a special-shaped column 230; the first heat equalization body 220 can quickly absorb and uniformly disperse the heat generated by the battery, reduce the temperature difference in the battery module, and avoid local overheating, thereby improving the overall performance and service life of the battery.

[0041] As shown in the drawings, Figure 5As shown, in an embodiment, the heat equalizing assembly 200 is arranged at both ends of the battery cell module 100; the first packaging member 210 comprises a heat conducting plate 211; the top of the heat conducting plate 211 is provided with an enclosing plate 212; the heat conducting plate 211 and the enclosing plate 212 are sealed, and the inside of the heat conducting plate 211 and the enclosing plate 212 forms a cavity for accommodating the first heat equalizing body 220. The heat equalizing assembly 200 arranged at both ends of the battery cell module 100 can simultaneously dissipate heat from both ends of the battery cell 110, forming a more effective heat dissipation path. Heat can be more quickly conducted from the battery cell 110 to the heat equalizing assembly 200, and then dissipated to the external environment, improving the overall heat dissipation efficiency, helping to maintain the battery cell 110 within an appropriate working temperature range, and reducing the impact of high temperature on the performance and service life of the battery cell 110. The heat equalizing assembly 200 at both ends of the battery cell module 100 can better balance the temperature distribution within the module. Due to the differences in temperature between the two ends and the middle part of the battery during charging and discharging, the heat equalizing assembly 200 at both ends can effectively adjust the temperature gradient, making the overall temperature of the battery cell module 100 more uniform, avoiding local overheating, and improving the consistency and stability of the battery module.

[0042] In an embodiment, the inner side of the heat conducting plate 211 is provided with a support column 213; the side of the support column 213 away from the heat conducting plate 211 is provided with a heat conducting pad 214; the heat conducting pad 214 abuts against the enclosing plate 212; the support column 213 is arranged opposite to the special-shaped column 230; the side of the enclosing plate 212 away from the heat conducting plate 211 is provided with a heat conducting adhesive 240. The support column 213 connects the heat conducting plate 211 and the enclosing plate 212, providing an internal support structure for the first packaging member 210, enhancing the overall strength and stability of the packaging member, enabling it to withstand certain external forces and pressures, and protecting the first heat equalizing body 220 inside; the support column 213 is arranged opposite to the special-shaped column 230, which can serve as a positioning function, ensuring the accurate relative position of the special-shaped column 230 and the heat equalizing assembly 200, facilitating the efficient transfer of heat through the special-shaped column 230 to the heat equalizing assembly 200, and also ensuring the installation precision of the entire heat equalizing assembly 200 in the battery module; the support column 213 is tightly connected with the enclosing plate 212, improving the heat conduction performance between the two, enabling heat to be more smoothly transferred from the heat conducting plate 211 to the enclosing plate 212, and then to the outside, reducing the thermal resistance in the transfer process, and improving the heat dissipation efficiency of the heat equalizing assembly 200. The heat conducting adhesive 240 further enhances the heat conduction effect between the enclosing plate 212 and the external heat dissipation structure or component;

[0043] In an embodiment, the heat-conducting plate 211 is provided with a through hole 215 for introducing the first heat evenly 220 into the cavity; the through hole 215 is provided with a plug 216 for sealing the through hole 215; the first heat evenly 220 is water; the through hole 215 is used for introducing the first heat evenly 220 into the cavity, so that the water heat medium can be conveniently injected into the inside of the packaging. The plug 216 is used for sealing the through hole 215 to prevent the water in the cavity from leaking. This ensures the sealing of the heat evenly assembly 200 and maintains the integrity of the heat evenly system, avoiding the influence of the heat evenly effect caused by the leakage of water, and preventing the damage of the leakage of water to other parts of the battery module. Water has high specific heat capacity and good heat conductivity, can absorb a large amount of heat and the temperature rise is relatively small, so it can effectively take away the heat generated by the battery cell 110, realize high-efficiency heat evenly effect, and help to maintain the battery cell 110 in a stable working temperature range, improve the performance and service life of the battery module.

[0044] In an embodiment, the sealing plate 212 is provided with a positioning pin 250 away from one side of the heat-conducting plate 211; the cooperation of the positioning pin 250 and the positioning groove can ensure the accurate installation position of the heat evenly assembly 200 in the battery pack assembly 300, so that the relative position between the heat evenly assembly 200 and the battery cell module 100 and other components is fixed, which is beneficial to the effective heat transfer and the exertion of the heat evenly effect. At the same time, the assembly precision of the overall structure of the battery pack assembly 300 is improved, and the cooperation between the components is tight and stable.

[0045] As shown in Figures 6-7 The upper cover 310 and the bottom shell 320 are fixed to the outside of the battery cell module 100 by screws 160 to form the battery pack assembly 300; the upper cover 310 and the bottom shell 320 are provided with positioning grooves matched with the positioning pin 250; the upper cover 310 and the bottom shell 320 are both provided with heat dissipation fins 330 in the middle; the heat dissipation fins 330 greatly increase the heat dissipation area of the battery pack assembly 300, and can dissipate the heat generated in the battery module to the surrounding environment more quickly. Through air convection and other methods, the conduction and dissipation of heat are accelerated, the overall temperature of the battery pack assembly 300 is reduced, which helps to maintain the battery in a suitable working temperature range and improve the performance and service life of the battery.

[0046] The above-mentioned is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A battery pack structure for effective heat dissipation and heat conduction, characterized in that: The battery module (100) includes a plurality of battery cells (110) disposed within a bracket (120); a battery cell vacancy area (111) is formed between the battery cells (110); a busbar (130) is provided at the end of each battery cell (110); an insulating sheet (140) is provided at the end of the busbar (130) away from the battery cell (110); a heat dissipation assembly (200) is connected to the battery module (100); the heat dissipation assembly (200) includes a shaped post (230) inserted into the battery cell vacancy area (111).

2. The battery pack structure for effective heat dissipation and heat conduction according to claim 1, characterized in that: A protective plate (150) is provided on one side of the battery cell module (100); the bracket (120) is provided at both ends of the battery cell (110), and the brackets (120) are fixed together by screws (160).

3. The battery pack structure for effective heat dissipation and heat conduction according to claim 1, characterized in that: The bracket (120) includes an extension post (121) for inserting into the empty area (111) of the battery cell; the irregular post (230) is located inside the extension post (121).

4. The battery pack structure for effective heat dissipation and heat conduction according to claim 3, characterized in that: The battery cell (110) is a cylindrical battery cell; the extension post (121) includes an abutment surface (122) that fits against the outer end face of the battery cell (110); the extension post (121) is provided with a glue storage tank that cooperates with the irregular post (230); the glue storage tank is provided with thermally conductive glue (240); the abutment surface (122) is provided with a leakage window (123) for overflowing the thermally conductive glue (240) onto the surface of the battery cell (110) when the irregular post (230) cooperates with the glue storage tank.

5. The battery pack structure for effective heat dissipation and heat conduction according to claim 1, characterized in that: The heat spreader assembly (200) includes a first heat spreader (220) encapsulated within a first encapsulation (210); the bottom of the first encapsulation (210) is provided with an irregularly shaped column (230).

6. The battery pack structure for effective heat dissipation and heat conduction according to claim 5, characterized in that: One heat-spreading component (200) is provided at each end of the battery cell module (100); the first package (210) includes a heat-conducting plate (211); a sealing plate (212) is provided on the top of the heat-conducting plate (211); after the heat-conducting plate (211) and the sealing plate (212) are sealed, a cavity is formed inside to accommodate the first heat-spreading body (220).

7. The battery pack structure for effective heat dissipation and heat conduction according to claim 6, characterized in that: The inner side of the heat-conducting plate (211) is provided with a support column (213); the side of the support column (213) away from the heat-conducting plate (211) is provided with a thermally conductive sticker (214); the thermally conductive sticker (214) abuts against the sealing plate (212); the support column (213) is set opposite to the irregular column (230); the side of the sealing plate (212) away from the heat-conducting plate (211) is provided with thermally conductive adhesive (240).

8. The battery pack structure for effective heat dissipation and heat conduction according to claim 6, characterized in that: The heat-conducting plate (211) is provided with a through hole (215) for introducing the first heat-spreading body (220) into the cavity; a plug (216) for sealing the through hole (215) is provided in the through hole (215); the first heat-spreading body (220) is water.

9. The battery pack structure for effective heat dissipation and heat conduction according to claim 6, characterized in that: The sealing plate (212) is provided with a positioning pin (250) on the side away from the heat-conducting plate (211).

10. The battery pack structure for effective heat dissipation and heat conduction according to claim 9, characterized in that: The cell module (100) is provided with an upper cover (310) and a bottom shell (320); the upper cover (310) and the bottom shell (320) are fixedly packaged on the outside of the cell module (100) by screws (160) to form a battery pack assembly (300); the upper cover (310) and the bottom shell (320) are provided with positioning grooves that cooperate with positioning pins (250); the upper cover (310) and the bottom shell (320) are both provided with heat dissipation fins (330) in the middle.

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