A battery module structure with high heat dissipation

Abstract

The utility model provides a high heat dissipation battery module structure, which relates to the field of battery technology and comprises an upper cover and a square shell frame. The upper cover and the square shell frame are longitudinally buckled structures. A liquid cooling plate is embedded in the upper cover, a valve port pipe is externally connected to one side of the liquid cooling plate, a patch slot is arranged on the upper surface of the upper cover, and a buckle is fixed between the inner side of the patch slot and the liquid cooling plate, wherein the buckle is a U-shaped aluminum profile. A plurality of aluminum-plastic brackets are embedded in the square shell frame, and on the basis of the structure, a liquid cooling plate and an aluminum-plastic bracket erected corresponding to the position of the liquid cooling plate and the upper cover are arranged at the same time, which serve as a plug-in interface for a battery cell, and can form efficient heat exchange with the liquid cooling plate and the space inside the upper cover through a partition plate arranged on the side of the aluminum-plastic bracket and a flow measuring slot formed by passing through the side, thereby avoiding rapid accumulation of heat under high-load operation.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a battery module structure with high heat dissipation. Background Art

[0002] A battery module is a unit assembled from multiple cells to provide higher voltage and capacity. It is usually composed of several cells, connectors, a battery management system, and a shell. The shell structure is usually used to protect the cells and provide physical support and isolation. It can also provide protection, heat dissipation, and protect the battery system from damage by the external environment. The existing module structure uses a composite plastic bracket and aluminum sheet and other substrate plates to encapsulate the cells. Heat dissipation is usually achieved by heat transfer and air cooling of the cell gaps. The actual structure's heat dissipation and heat dissipation efficiency are greatly affected by high temperature when the cells are under high load, and the heat dissipation of the battery structure is limited.

[0003] In light of this, the utility model provides an effective solution to the problem that the heat dissipation structure of the battery module structure is relatively limited, and the high temperature accumulated inside the battery cell when the battery cell is under high load has a significant impact on the heat dissipation of the structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the heat dissipation structure of the traditional battery module structure is greatly limited. When the battery cell is under high load, the high temperature accumulated inside has a great influence on the heat dissipation of the structure. In view of the problems existing in the prior art, a battery module structure with high heat dissipation is provided.

[0005] The purpose and effect of the utility model are achieved by the following specific technical means: comprising an upper cover and a square shell frame, the upper cover and the square shell frame are longitudinally buckled structures, a liquid cooling plate is embedded in the upper cover, a valve port pipe is externally connected to one side of the liquid cooling plate, a patch groove is provided on the upper surface of the upper cover, and a buckle is fixed between the inner side of the patch groove and the liquid cooling plate, and the buckle is a U-shaped aluminum profile;

[0006] A plurality of aluminum-plastic brackets are embedded in the square shell frame, and flow measuring troughs are formed on both sides of the aluminum-plastic brackets. Partition plates are arranged between adjacent aluminum-plastic brackets, and the flow measuring troughs and the openings between adjacent partition plates are longitudinally connected to the upper cover.

[0007] Furthermore, the cross section of the upper cover is T-shaped, and the protruding end of the T-shaped surface of the upper cover is longitudinally connected to the square shell frame, and a plurality of heat conducting strips are arranged in the protruding end of the T-shaped surface of the upper cover.

[0008] A further preferred solution is that a buckling head is buckled and fixed on one side of the connection end between the upper cover and the square shell frame.

[0009] A further preferred solution is that a side ring frame matching the edge is embedded on the outer side of the connecting end of the square shell frame with the upper cover, and a through groove connected to the heat conducting strip is formed through the surface of the side ring frame.

[0010] A further preferred solution is that a bracket is fixedly arranged between the bottom of the aluminum-plastic bracket and the square shell frame, and the aluminum-plastic bracket is a battery cell slot frame structure with a longitudinal through opening.

[0011] A further preferred solution: the heat conductive strips and the partition plates are staggered and closely fitted.

[0012] Beneficial effects of the utility model:

[0013] The battery module structure uses a buckled upper cover and a square shell frame as a cell packaging structure. On the basis of the structure, a liquid cooling plate and an aluminum-plastic bracket erected according to the position of the liquid cooling plate and the upper cover are provided as the insertion and placement interface of the cell. The partition plate arranged on the side of the aluminum-plastic bracket and the flow measuring groove formed by the side through-through can form efficient heat exchange with the liquid cooling plate and the space inside the upper cover to avoid rapid accumulation of heat under high-load operation. The separated aluminum-plastic brackets effectively avoid mutual influence and heat accumulation between the cells, and improve the heat dissipation of the structure compared with the traditional battery module structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal planar structure of the upper cover of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal planar structure of the square shell frame of the utility model.

[0018] Figure 1-Figure 3 Middle: upper cover 1, square shell frame 2, buckle head 3, side ring frame 4, patch slot 5, liquid cooling plate 6, buckle 7, valve port tube 8, heat conducting strip 9, aluminum-plastic bracket 10, partition plate 11, bracket 12, side flow slot 13. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, Figure 1-Figure 3 The utility model is further described in detail with specific implementation methods. The following embodiments are only examples for implementing the utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the utility model. On the contrary, changes and modifications made without departing from the scope of the utility model are all within the scope of patent protection of the utility model.

[0020] A high heat dissipation battery module structure, comprising an upper cover 1 and a square shell frame 2, wherein the upper cover 1 and the square shell frame 2 are longitudinally buckled structures, a liquid cooling plate 6 is embedded in the upper cover 1, a valve port pipe 8 is externally connected to one side of the liquid cooling plate 6, a patch slot 5 is arranged on the upper surface of the upper cover 1, and a buckle 7 is fixed between the inner side of the patch slot 5 and the liquid cooling plate 6, the buckle 7 is a U-shaped aluminum profile, and the buckle 7 cooperates with the liquid cooling plate 6 in an embracing connection, and the patch slot 5 is used as a heat dissipation surface of the upper cover 1 structure by means of heat exchange of a flowing medium of the liquid cooling plate 6;

[0021] A plurality of aluminum-plastic brackets 10 are embedded in the square shell frame 2. A flow measuring slot 13 is formed on both sides of the aluminum-plastic bracket 10. A partition plate 11 is arranged between adjacent aluminum-plastic brackets 10. The flow measuring slot 13 and the openings between adjacent partition plates 11 are longitudinally connected to the upper cover 1.

[0022] Specifically, the structure uses the upper cover 1 and the square shell frame 2 that are longitudinally buckled as the packaging structure of the battery cell, wherein the cell is plugged and combined with the frame space formed in the aluminum-plastic bracket 10. In its plug-in combination structure, the contact ends of adjacent cells are separated by adjacently arranged partition plates 11, and at the same time, the flow meter 13 formed through the side of the aluminum-plastic bracket 10 is used to guide the heat generated by the cell to the separation space between the partition plates 11. When the liquid cooling plate 6 is working, the flowing medium circulating in the external valve port pipe 8 is used to exchange heat with the space inside the upper cover 1 and the space inside the flow meter 13, and the heat is taken away by the flow of the medium to complete the heat dissipation. Compared with the traditional battery module structure, the structure avoids the mutual high-temperature influence and heat accumulation of the cell heating by separating the aluminum-plastic bracket 10 and the square shell frame 2 and separating adjacent cells, so as to ensure the high heat dissipation of the structure, and cooperates with the heat-conducting structure arranged with the liquid cooling plate 6 to complete the heat dissipation of the internal structure.

[0023] Furthermore, the cross section of the upper cover 1 is T-shaped, and the protruding end of the T-shaped surface of the upper cover 1 is longitudinally connected to the square shell frame 2, and a plurality of heat conducting strips 9 are arranged in the protruding end of the T-shaped surface of the upper cover 1, such as Figure 2 , 3 As shown, the longitudinal buckling structure of the structure uses the T-shaped surface as the connecting end with the square shell frame 2, and the plug-in matching combination structure ensures the sealing of the module structure combination end, and cooperates with the heat conducting strip 9 therein to improve the heat exchange efficiency between the upper cover 1 and the square shell frame 2;

[0024] At the same time, the square shell frame 2 is embedded with a side ring frame 4 that matches the edge on the outer side of the connection end with the upper cover 1, and a through-opening groove connected to the heat-conducting strip 9 is formed through the surface of the side ring frame 4, which cooperates with the side ring frame 4 arranged outside the square shell frame 2 to serve as an expansion structure of the heat-conducting strip 9, so as to cooperate with the side ring frame 4 structure and the through-opening groove to assist the heat conduction and heat dissipation of the outer surface of the heat-conducting strip 9;

[0025] On the basis of the above, the heat conducting strips 9 and the partition plates 11 are staggered and closely fitted, and further through the connection between the heat conducting strips 9 and the partition plates 11, the partition plates 11 are coordinated to conduct heat on the surface of the battery cell, so as to cooperate with the heat dissipation of the liquid cooling plate 6 to improve the heat exchange efficiency between the upper cover 1 and the space inside the square shell frame 2;

[0026] Furthermore, a buckle head 3 is buckled and fixed on one side of the connection end between the upper cover 1 and the square shell frame 2, and the longitudinal docking structure between the upper cover 1 and the square shell frame 2 is further fixed by the hinged combination of the end of the buckle head 3 and the upper cover 1 and the square shell frame 2, so as to ensure that the upper cover 1 and the square shell frame 2 are tightly connected;

[0027] Furthermore, a bracket 12 is fixedly arranged between the bottom of the aluminum-plastic bracket 10 and the square shell frame 2. The aluminum-plastic bracket 10 is a battery cell slot frame structure with a longitudinal through opening. The bracket 12 further separates the connecting end of the aluminum-plastic bracket 10 and the battery cell to further isolate the battery cell from the square shell frame 2 structure.

Claims

1. A high heat dissipation battery module structure, comprising an upper cover (1) and a square shell frame (2), wherein the upper cover (1) and the square shell frame (2) are longitudinally buckled structures, characterized in that: A liquid cooling plate (6) is embedded in the upper cover (1), one side of the liquid cooling plate (6) is externally connected to a valve port tube (8), a patch slot (5) is provided on the upper surface of the upper cover (1), and a fastening piece (7) is fixed between the inner side of the patch slot (5) and the liquid cooling plate (6), and the fastening piece (7) is a U-shaped aluminum profile; A plurality of aluminum-plastic brackets (10) are embedded in the square shell frame (2), and flow measuring grooves (13) are formed through both sides of the aluminum-plastic brackets (10), and partition plates (11) are arranged between adjacent aluminum-plastic brackets (10), and the openings between the flow measuring grooves (13) and adjacent partition plates (11) are longitudinally connected to the upper cover (1).

2. A high heat dissipation battery module structure according to claim 1, characterized in that: The upper cover (1) has a T-shaped cross section, and a protruding end of the T-shaped surface of the upper cover (1) is longitudinally connected to the square shell frame (2), and a plurality of heat conducting strips (9) are arranged in the protruding end of the T-shaped surface of the upper cover (1).

3. The high heat dissipation battery module structure according to claim 1, characterized in that: A buckling head (3) is buckled and fixed on one side of the connection end between the upper cover (1) and the square shell frame (2).

4. A high heat dissipation battery module structure according to claim 2, characterized in that: The square shell frame (2) is embedded with a side ring frame (4) matching the edge on the outer side of the connection end with the upper cover (1), and a through groove connected to the heat conducting strip (9) is formed through the surface of the side ring frame (4).

5. The high heat dissipation battery module structure according to claim 1, characterized in that: A bracket (12) is fixedly arranged between the bottom of the aluminum-plastic bracket (10) and the square shell frame (2); the aluminum-plastic bracket (10) is a battery cell slot frame structure with a longitudinal opening.

6. A high heat dissipation battery module structure according to claim 2, characterized in that: The heat conducting strips (9) and the partition plates (11) are staggered and butt-jointed and fit tightly together.

Images