Lithium battery module

Abstract

The utility model provides a lithium battery module which comprises a shell and a lithium battery core, and the shell is provided with a heat dissipation structure and a heat conduction paste; the heat dissipation structure is composed of a plurality of heat dissipation tooth pieces, the heat dissipation tooth pieces form the heat dissipation structure of heat dissipation fins on the shell, and the heat conduction paste is provided with a plurality of positioning grooves used for positioning and exhaust holes used for exhausting. According to the heat dissipation structure, the plurality of heat dissipation tooth sheets are arranged on the shell, and the plurality of heat dissipation tooth sheets form the heat dissipation structure of the heat dissipation fins on the shell, so that the heat dissipation area of the shell can be effectively increased, and heat conducted to the shell through the heat conduction paste effectively exchanges heat with air in the external environment; further, the heat dissipation effect of the lithium battery module is improved, the requirement for heat management of the battery module is met, and the safety is improved; moreover, the heat conduction paste is attached between the lithium battery core and the shell, so that heat generated by the lithium battery core can be effectively guided into the shell, and the heat guided into the shell is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to lithium battery module. BACKGROUND

[0002] In the rapid development of internet and big data, the data era of day by day changing, as its foundation, UPS is also in the development and update unceasingly. Especially in the rapid development and application of lithium battery, new energy industry rapid expansion today, the previous application lead-acid battery scene, more and more to lithium battery scene switching and conversion. The safe application of lithium battery is more and more important, becomes the terminal customer and market consideration the most important.

[0003] Due to the high energy density, high activity, long standby time, discharge rate and other advantages of lithium battery become the important factor of personnel selection. In meeting the lithium battery module large standby rate discharge requirement while needing to meet the thermal management of battery module, the heat dissipation structure of the aluminum battery on the market is relatively complex, the space required is larger, and the heat dissipation effect is not ideal, which cannot meet the demand of the thermal management of the battery module, resulting in low safety. Utility model content

[0004] The utility model discloses a lithium battery module, including the shell and the lithium electric core of setting in the shell, the shell has the heat dissipation structure and a plurality of heat conduction stickers that fit in between the lithium electric core with the shell on,

[0005] The utility model discloses a lithium battery module, including the shell and the lithium electric core of setting in the shell, the shell has the heat dissipation structure and a plurality of heat conduction stickers that fit in between the lithium electric core with the shell on,

[0006] The heat dissipation structure consists of several heat dissipation fins disposed on the outer edge surface of the housing. The several heat dissipation fins form a heat dissipation structure of heat dissipation fins on the housing. The thermal conductive patch has several positioning grooves for positioning and exhaust holes for exhaust. By utilizing several heat dissipation fins set on the housing, forming a heat dissipation structure, the heat dissipation area of ​​the housing can be effectively increased. This allows heat transferred to the housing via the thermal pad to exchange with the air in the external environment, thereby improving the heat dissipation effect of the lithium battery module, meeting the thermal management requirements of the battery module, and enhancing safety. Furthermore, by attaching the thermal pad between the lithium battery cell and the housing, the heat generated by the lithium battery cell can be effectively transferred to the housing, increasing the amount of heat transferred to the housing. The heat dissipation structure formed by the heat dissipation fins on the housing then exchanges heat with the air in the external environment, further improving the heat dissipation effect of the lithium battery module. In addition, by utilizing the positioning grooves on the thermal pad, the positioning accuracy between the thermal pad and the aluminum battery cell can be effectively improved, ensuring the adhesion between the thermal pad and the lithium battery cell and the housing. Moreover, the several vents on the thermal pad can effectively transfer the heat generated by the lithium battery cell to the housing, where it then exchanges heat with the air in the external environment through the heat dissipation structure of the heat dissipation fins, ensuring the heat dissipation effect of the lithium battery module.

[0007] Furthermore, the thermal conductive patch is a rectangular thermal conductive patch, and several of the vent holes are arranged side by side on the thermal conductive patch, thereby improving the adhesion between the thermal conductive patch and the shell, and improving the uniformity of the vent holes on the thermal conductive patch, further improving the thermal conductivity of the thermal conductive patch.

[0008] Furthermore, the vent is a rectangular vent, which makes the shape of the vent match the shape of the thermal pad and maximizes the vent area, so as to ensure that the heat generated by the lithium battery cell is promptly transferred to the casing through the vent.

[0009] Furthermore, several positioning grooves are symmetrically arranged at the ends of the thermal conductive patch, thereby effectively improving the uniformity of the positioning grooves on the thermal conductive patch. By utilizing the positioning grooves on the thermal conductive patch, the positioning accuracy between the thermal conductive patch and the aluminum battery cell can be effectively improved, thereby effectively ensuring the adhesion between the thermal conductive patch and the lithium battery cell and the casing.

[0010] Furthermore, the heat dissipation fins are vertical heat dissipation fins, and several of the vertical heat dissipation fins form vertical heat dissipation fins on the housing. This not only effectively ensures the heat dissipation effect of the heat dissipation fins formed by multiple heat dissipation fins on the housing, but also provides a variety of heat dissipation fin shape designs to meet the heat dissipation needs in different usage scenarios.

[0011] Further, the heat dissipation fins are rhombic heat dissipation fins, and a plurality of the rhombic heat dissipation fins form a rhombic heat dissipation fin on the shell, so as to effectively ensure the heat dissipation effect of the heat dissipation fin formed by the plurality of heat dissipation fins on the shell, and provide a plurality of heat dissipation fin shape designs to meet the heat dissipation requirements in different use scenarios.

[0012] Further, the heat dissipation fins are oblique heat dissipation fins, and a plurality of the oblique heat dissipation fins form an oblique heat dissipation fin on the shell, so as to effectively ensure the heat dissipation effect of the heat dissipation fin formed by the plurality of heat dissipation fins on the shell, and provide a plurality of heat dissipation fin shape designs to meet the heat dissipation requirements in different use scenarios.

[0013] Further, the lithium battery cell includes a positive electrode cell and a negative electrode cell, and the positive electrode cell and the negative electrode cell are provided with the heat conduction pad between the positive electrode cell and the negative electrode cell and the shell. By providing the heat conduction pad between the positive electrode cell and the negative electrode cell and the shell, the heat generated by the positive electrode cell and the negative electrode cell can be effectively introduced into the shell in time, and the heat dissipation fin on the shell can be used for heat dissipation, so as to ensure the heat dissipation effect of the lithium battery module.

[0014] Further, the heat conduction pad between the positive electrode cell and the negative electrode cell and the shell is located close to the heat dissipation fin, so as to ensure that the heat generated by the positive electrode cell and the negative electrode cell is introduced into the shell in time through the heat conduction pad, and the heat dissipation structure of the heat dissipation fin exchanges heat with the air in the external environment, so as to ensure the heat dissipation effect of the lithium battery module.

[0015] Further, the shell is provided with a closing plate at both ends, and the closing plate is fixed to the shell by a plurality of locking members. By using bolts, studs, pins and other locking members to lock the closing plate in the shell, a closed structure can be formed in the shell, so that the heat generated by the lithium battery cell can only be introduced into the shell through the heat conduction pad and dissipated through the heat dissipation fin on the shell, so as to ensure the heat conduction effect of the heat conduction pad.

[0016] The lithium battery module has the advantages that: the heat dissipation fins are arranged on the shell, the heat dissipation fins form the heat dissipation structure of the heat dissipation fins on the shell, the heat dissipation area of the shell is effectively increased, the heat on the shell is exchanged with the air in the external environment through the heat-conducting paste, the heat dissipation effect of the lithium battery module is improved, the safety is improved, the heat management of the battery module is met, the heat generated by the lithium battery cell is effectively introduced to the shell through the heat-conducting paste, the heat on the shell is increased, the heat is exchanged with the air in the external environment through the heat dissipation structure of the heat dissipation fins on the shell, the heat dissipation effect of the lithium battery module is further improved, the positioning precision between the heat-conducting paste and the lithium battery cell is effectively improved through the positioning groove on the heat-conducting paste, the adhesion between the heat-conducting paste and the lithium battery cell and the shell is effectively ensured, the heat generated by the lithium battery cell is introduced to the shell through the exhaust holes on the heat-conducting paste, and then the heat is exchanged with the air in the external environment through the heat dissipation structure of the heat dissipation fins, so that the heat dissipation effect of the lithium battery module is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the lithium battery module provided by the utility model Figure 1 ;

[0018] Figure 2 The structure diagram of the lithium battery module provided by the utility model Figure 2 ;

[0019] Figure 3 The structure diagram of the heat-conducting paste in the lithium battery module provided by the utility model;

[0020] Figure 4 The schematic diagram of the vertical heat dissipation fin, the rhombus heat dissipation fin and the inclined heat dissipation fin in the lithium battery module provided by the utility model.

[0021] In the drawing:

[0022] 100-lithium battery module,

[0023] 10-shell, 11-closed plate, 20-heat dissipation fin, 21-heat dissipation fin, 22-vertical heat dissipation fin,

[0024] 23-rhombus heat dissipation fin, 24-inclined heat dissipation fin, 30-heat-conducting paste, 31-exhaust hole, 32-positioning groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be described in further detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0026] Referring to Figures 1-4 The lithium battery module 100 provided by the utility model, the lithium battery module 100, including the shell 10 and the lithium cell arranged in the shell 10, the shell 10 has the heat dissipation structure and the plurality of heat-conducting stickers 30 pasted between the lithium cell and the shell 10;The heat dissipation structure is the plurality of heat dissipation fins 20 arranged on the outer edge surface of the shell 10, and the plurality of heat dissipation fins 20 form the heat dissipation structure of the heat dissipation fin 21 on the shell 10, and the heat-conducting sticker 30 has the plurality of positioning grooves 32 for positioning and the exhaust hole 31 for exhaust. By using the plurality of heat dissipation fins 20 arranged on the shell 10, and making the plurality of heat dissipation fins 20 form the heat dissipation structure of the heat dissipation fin 21 on the shell 10, the heat dissipation area of the shell 10 can be effectively increased, so that the heat introduced into the shell 10 by the heat-conducting sticker 30 exchanges with the air in the external environment, thereby improving the heat dissipation effect of the lithium battery module 100, meeting the demand of the heat management of the battery module, and improving the safety.

[0027] And, as Figure 2 And Figure 3 Indicated, by pasting the heat-conducting sticker 30 between the lithium cell and the shell 10, the heat generated by the lithium cell can be effectively introduced into the shell 10, thereby increasing the heat introduced into the shell 10, and using the heat dissipation structure of the heat dissipation fin 21 formed on the shell 10 and the air in the external environment for heat exchange, thereby further improving the heat dissipation effect of the lithium battery module 100;In addition, by using the positioning grooves 32 on the heat-conducting sticker 30, the positioning accuracy between the heat-conducting sticker 30 and the aluminum cell can be effectively improved, thereby effectively ensuring the adhesion between the heat-conducting sticker 30 and the lithium cell and the shell 10, and by the plurality of exhaust holes 31 on the heat-conducting sticker 30, the heat generated by the lithium cell can be effectively introduced into the shell 10 through the exhaust hole 31, and then exchanged with the air in the external environment through the heat dissipation structure of the heat dissipation fin 21, thereby ensuring the heat dissipation effect of the lithium battery module 100.

[0028] As Figure 3As shown, the thermal conductive patch 30 is a rectangular thermal conductive patch 30, with multiple vent holes 31 arranged side by side on the thermal conductive patch 30. This allows the shape of the thermal conductive patch 30 to match the shape of the lithium battery cell, thereby effectively improving the adhesion between the thermal conductive patch 30 and the housing 10. Furthermore, arranging the multiple vent holes 31 side by side on the thermal conductive patch 30 effectively improves the uniformity of the vent holes 31's distribution, further enhancing the heat conduction effect of the thermal conductive patch 30. Moreover, the vent holes 31 provided by this invention are rectangular vent holes 31, ensuring that the shape of the vent holes 31 matches the shape of the thermal conductive patch 30 and maximizing the venting area of ​​the vent holes 31. This further ensures that the heat generated by the lithium battery cell is promptly transferred to the housing 10 through the vent holes 31.

[0029] like Figure 3 As shown, in the embodiment provided by this utility model, the positioning grooves 32 are symmetrically arranged at the ends of the thermal conductive patch 30, thereby effectively improving the uniformity of the positioning grooves 32 on the thermal conductive patch 30. By utilizing the positioning grooves 32 on the thermal conductive patch 30, the positioning accuracy between the thermal conductive patch 30 and the aluminum battery cell can be effectively improved, thereby effectively improving the fit between the thermal conductive patch 30 and the lithium battery cell and the housing 10. It also provides clearance for bolts, studs and pins and other locking parts when they are locked on the housing 10, avoiding interference with the locking operation of the locking parts, ensuring the structural integrity of the thermal conductive patch 30, and ensuring the heat conduction effect of the thermal conductive patch 30.

[0030] like Figure 4 As shown, in the embodiment provided by this utility model, the heat dissipation fin 20 is a vertical heat dissipation fin, and multiple vertical heat dissipation fins form vertical heat dissipation fins 22 on the housing 10. This effectively ensures the heat dissipation effect of the heat dissipation fins 21 formed by multiple heat dissipation fins 20 on the housing 10, while providing a variety of heat dissipation fin 20 shape designs to meet the heat dissipation needs in different usage scenarios.

[0031] like Figure 4 As shown, in other embodiments provided by this utility model, the heat dissipation fins 20 are diamond-shaped heat dissipation fins, and multiple diamond-shaped heat dissipation fins form diamond-shaped heat dissipation fins 23 on the housing 10. This effectively ensures the heat dissipation effect of the heat dissipation fins 21 formed by multiple heat dissipation fins 20 on the housing 10, while providing a variety of heat dissipation fin shape designs to meet the heat dissipation needs in different usage scenarios.

[0032] like Figure 4 As shown, in other embodiments provided by this utility model, the heat dissipation fins 20 are oblique heat dissipation fins, and multiple oblique heat dissipation fins form oblique heat dissipation fins 24 on the housing 10. This effectively ensures the heat dissipation effect of the heat dissipation fins 21 formed by multiple heat dissipation fins 20 on the housing 10, while providing a variety of heat dissipation fin shape designs to meet the heat dissipation needs in different usage scenarios.

[0033] As Figure 2 shown, the lithium cell provided by the utility model includes positive cell and negative cell, and the lithium cell includes positive cell and negative cell and shell 10 and is provided with heat conduction paste 30 between them. By being provided with heat conduction paste 30 between positive cell and negative cell and shell 10, the heat generated by positive cell and negative cell can be effectively introduced into shell 10 in time and radiated through radiating fin 21 on shell 10, so that the radiating effect of the lithium battery module 100 is guaranteed. Moreover, the heat conduction paste 30 between positive cell and negative cell and shell 10 is located at the position of radiating fin 21, the shell 10 provided by the utility model is aluminum profile, and the radiating fin 21 formed by the plurality of radiating teeth 20 is arranged on the upper surface and the lower surface of the aluminum profile, so that the radiating fin 21 corresponds to the position of the heat conduction paste 30, so that the heat generated by positive cell and negative cell can be introduced into shell 10 in time through the heat conduction paste 30, and the radiating structure of the radiating fin 21 exchanges heat with the air in the external environment, so that the radiating effect of the lithium battery module 100 is guaranteed.

[0034] As Figure 1 shown, the both ends of the shell 10 are also provided with closing plates 11, and the closing plates 11 are fixed on the shell 10 through a plurality of locking members. By locking the closing plates 11 in the shell 10 through bolts, studs and pins and other locking members, the closed structure can be formed in the shell 10, so that the heat generated by the lithium cell can only be introduced into the shell 10 through the heat conduction paste 30 and radiated through the radiating fin 21 on the shell 10, so that the heat conduction effect of the heat conduction paste 30 is guaranteed.

[0035] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lithium battery module, characterized by, The application relates to a lithium battery cell, which comprises a shell (10) and a lithium battery cell arranged in the shell (10), wherein the shell (10) is provided with a heat dissipation structure and a plurality of heat-conducting pads (30) arranged between the lithium battery cell and the shell (10). The heat dissipation structure is a plurality of heat dissipation fins (20) arranged on the outer edge surface of the shell (10), the plurality of heat dissipation fins (20) form a heat dissipation fin structure of a heat dissipation fin (21) on the shell (10), and the heat-conducting pad (30) is provided with a plurality of positioning grooves (32) for positioning and a plurality of exhaust holes (31) for exhausting.

2. The lithium battery module of claim 1, wherein, The heat-conducting pad (30) is a rectangular heat-conducting pad (30), and the plurality of exhaust holes (31) are arranged side by side on the heat-conducting pad (30).

3. The lithium battery module of claim 2, wherein, The exhaust hole (31) is a rectangular exhaust hole.

4. The lithium battery module of claim 2, wherein, The plurality of positioning grooves (32) are symmetrically arranged at two ends of the heat-conducting pad (30).

5. The lithium battery module of claim 1, wherein, The heat dissipation fin (20) is a vertical heat dissipation fin, and the plurality of vertical heat dissipation fins form a vertical heat dissipation fin (22) on the shell (10).

6. The lithium battery module of claim 1, wherein, The heat dissipation fin (20) is a rhombic heat dissipation fin, and the plurality of rhombic heat dissipation fins form a rhombic heat dissipation fin (23) on the shell (10).

7. The lithium battery module of claim 1, wherein, The heat dissipation fin (20) is an inclined heat dissipation fin, and the plurality of inclined heat dissipation fins form an inclined heat dissipation fin (24) on the shell (10).

8. The lithium battery module of claim 1, wherein, The lithium battery cell comprises a positive electrode cell and a negative electrode cell, and the heat-conducting pad (30) is arranged between the positive electrode cell and the negative electrode cell and the shell (10).

9. The lithium battery module of claim 8, wherein, The heat-conducting pad (30) between the positive electrode cell and the negative electrode cell and the shell (10) is located close to the heat dissipation fin (21).

10. The lithium battery module of claim 1, wherein, The two ends of the shell (10) are further provided with a closing plate (11), and the closing plate (11) is fixed to the shell (10) through a plurality of locking members.

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