Horizontal battery module structure

Abstract

The utility model relates to a flat type battery module structure. Belongs to the technical field of low-voltage new energy batteries. The low-voltage new energy battery system mainly solves the problems of low relative space utilization rate, limited installation position and overlarge size of the existing low-voltage new energy battery system. The battery pack is mainly characterized by comprising a lower box body assembly, a module carrier assembling assembly and a positive electrode copper bar, wherein the module carrier assembling assembly comprises a soft package battery cell, a carrier positive electrode copper bar, a carrier negative electrode copper bar and an FPCB (Flexible Printed Circuit Board); the soft package battery cell is in a flat state in the module carrier assembling assembly; the carrier cathode copper bar is connected with the cathode column, and the carrier anode copper bar is connected with the anode column through the anode copper bar. The device has the characteristics of improving the production efficiency, improving the quality qualification rate and reducing the product cost, and is mainly used for a low-voltage new energy battery system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to low -voltage new energy battery technical field, concretely relates to a flat lying formula battery module structure. BACKGROUND

[0002] Low -voltage new energy battery system is used more and more in vehicle, and the installation environment in whole vehicle tends to the diversified demand, and the standard size structure of traditional alternative lead -acid battery has not been able to satisfy customer installation demand.Relative space utilization is low, and installation position is limited, and the problems such as cost increase caused by too big volume. INVENTION CONTENTS

[0003] The utility model discloses a flat lying formula battery system structure, and the installation mode between product structural members is optimized, the overall height of product is reduced, and the installation demand under different environments in whole vehicle is satisfied.With the optimization of the assembly mode of product and the reduction of overall volume, the assembly difficulty of battery structural components is reduced, thereby improving production efficiency, improving quality qualification rate and reducing product cost.

[0004] The utility model discloses a flat lying formula battery module structure, including lower box assembly, module carrier assembly and positive pole copper row, the module carrier assembly includes soft package electric core, carrier positive pole copper row, carrier negative pole copper row and FPCB, and it is characterized that: the soft package electric core is in the lying state in the module carrier assembly assembly;The carrier negative pole copper row is connected with the negative pole column, and the carrier positive pole copper row is connected with the positive pole column through the positive pole copper row.

[0005] The module carrier assembly is fixedly installed in the lower box assembly through the module pressing plate and the bottom foam in the technical solution of the utility model.

[0006] The bottom foam is pasted on the bottom of the inner side of the lower box assembly in the technical solution of the utility model;Module heat insulation pads are arranged between the module pressing plate and the module carrier assembly;Carrier insulating sheets are arranged between the side surfaces of the carrier positive pole copper row and the carrier negative pole copper row of the module carrier assembly and the lower box assembly.

[0007] The positive pole copper row is fixed on the module pressing plate through the positive pole copper row support in the technical solution of the utility model.

[0008] The lower box assembly is provided with a sealing ring on the top edge, and the sealing ring is provided with a circular arc transition at the box bolt mounting hole position;The module pressing plate is provided with positive pole copper row support fixing holes and positioning holes.

[0009] The upper and lower faces of the positive copper bar are provided with positive copper bar top foam and positive copper bar bottom foam; and the lower box assembly is fixed with a breathable film in a back adhesive paste form.

[0010] The module pressing plate is a crimping boss structure composed of a middle part and a periphery; the middle part is provided with module pressing plate reinforcing ribs, positive copper bar support fixing holes and positioning holes, and the periphery is provided with pressing plate positioning holes and pressing plate fixing holes.

[0011] The soft package battery cell stack is fixed by winding with a battery cell fixing adhesive tape or by gluing.

[0012] The lower box assembly and the carrier negative copper bar and the carrier positive copper bar are assembled by hot melting or by integral injection molding.

[0013] The battery cell output positive and negative pole pieces of the soft package battery cell are connected with the carrier positive copper bar and the carrier negative copper bar respectively.

[0014] The battery cell flat lying assembly structure reduces the product height space requirement, is more conducive to installation in a vehicle, optimizes the overall assembly structure, simplifies the assembly process, and reduces the material cost of the product.

[0015] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application.

[0016] The present application has the characteristics of improving production efficiency, improving quality pass rate and reducing product cost, and is mainly used for low-voltage new energy battery systems. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation of the present application.

[0018] Figure 1 It is a module assembly schematic diagram of the present application.

[0019] Figure 2 It is an explosion schematic diagram of the module assembly of the present application.

[0020] Figure 3 It is a module assembly schematic diagram of the present application.

[0021] Figure 4 It is a module pressing plate schematic diagram of the present application.

[0022] Figure 5 Figure is a lower box assembly diagram.

[0023] In the figure: 1-lower box assembly; 2-sealing gasket; 3-bottom foam; 4-positive copper bar support fixing screw; 5-module pressing plate; 6-positive copper bar support; 7-flange nut; 8-positive copper bar; 9-positive copper bar top foam; 10-positive copper bar bottom foam; 11-fixing bolt; 12-module heat insulation pad; 13-fixing nut; 14-module carrier assembly; 15-carrier insulating sheet; 16-heat insulation pad; 17-FPCB; 18-carrier negative copper bar; 19-soft package battery cell; 20-battery cell fixing tape; 21-carrier positive copper bar; 22-pressing plate reinforcing rib; 23-pressing plate positioning hole; 24-positive copper bar support fixing hole and positioning hole; 25-pressing plate fixing hole; 26-breathable film. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the utility model clearer, the following will combine the utility model specific embodiment and corresponding drawings to make the utility model technical scheme clear and complete. Obviously, the described embodiment is only a part of the utility model embodiment, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0025] As Figures 1 to 5 shown, one embodiment of the utility model flat lying type battery module structure is composed of lower box assembly 1, positive copper bar 8, positive copper bar support 6, module pressing plate 5 and module carrier assembly 14 etc.

[0026] Module carrier assembly 14 includes soft package battery cell 19, carrier positive copper bar 21, carrier negative copper bar 18 and FPCB 17, and soft package battery cell 19 is in flat lying state in module carrier assembly 14. Soft package battery cell 19 stack adopts battery cell fixing tape 20 winding fixation, and can also use glue to bond fixation. After series-parallel connection, the battery cell output positive and negative pole piece of soft package battery cell 19 is connected with carrier positive copper bar 21 and carrier negative copper bar 18 respectively. The side where carrier positive copper bar 21 and carrier negative copper bar 18 of module carrier assembly 14 are located is provided with carrier insulating sheet 15.

[0027] The lower box assembly 1 is in the shape of a rectangular body, and a breathable film 26 is fixed on the side wall by using a back adhesive. The top edge of the lower box assembly 1 is reserved for the installation of a sealing ring. The lower box assembly 1 is provided with positioning holes and mounting holes for fixing the module carrier assembly 14. The module carrier assembly 14 is assembled with the carrier negative copper bar 18 and the carrier positive copper bar 21 by using a hot melting method, and can also be integrally injection molded.

[0028] The module pressing plate 5 is a crimping boss structure composed of a middle part and a periphery. The middle part is provided with a module pressing plate reinforcing rib 22 and positive copper bar support fixing holes and positioning holes 24, and the periphery is provided with pressing plate positioning holes 23 and pressing plate fixing holes 25.

[0029] Specifically, the bottom foam 3 is first pasted on the inner bottom of the lower box assembly 1, and then the module carrier assembly 14 is placed horizontally in the lower box assembly 1, and is fixed through the positioning holes and mounting holes on the module carrier assembly 14 and the positioning holes and mounting holes in the lower box assembly 1. Then the heat insulation pad 16, the module heat insulation pad 12 and the module pressing plate 5 are sequentially installed in the lower box assembly 1, and are fixed by using M4 fixing bolts 11. Under the action of the module pressing plate 5 and the bottom foam 3, the soft pack battery cell 19 is fixed firmly. The positive copper bar support 6 is installed on the module pressing plate 5 through the positive copper bar support fixing screw 4. One end of the positive copper bar 8 is connected with the module carrier assembly 14 and the positive copper bar support 6 through an M6 flange nut 7, and the other end is connected with the carrier positive copper bar 21 through an M6 fixing nut 13. The upper and lower surfaces of the positive copper bar 8 are provided with the positive copper bar top foam 9 and the positive copper bar bottom foam 10. The carrier negative copper bar 18 is connected with a negative pole, and the carrier positive copper bar 21 is connected with a positive pole through the positive copper bar, so as to connect the module positive connection circuit with the upper cover assembly. Finally, the sealing ring is arranged at the reserved width at the top of the lower box assembly 1, and the sealing ring is provided with a circular arc transition at the box bolt mounting hole position. The upper cover assembly is installed and fixed on the lower box assembly 1, and is fixed on the module pressing plate 5 through the positive copper bar support 6.

[0030] The carrier insulation sheet 15 of the utility model can realize the insulation requirement between the carrier positive and negative copper bars 21 and 18 and the lower box assembly 1, and the module carrier assembly 14 is provided with a heat insulation sheet 16 at the top, which is used for insulating the heat transmitted from the upper cover assembly.

[0031] The utility model assembly pressing plate 5 and soft pack battery cell 19 are provided with a module heat insulation pad 12, which is used for insulating the heat transmitted from the upper cover assembly.

[0032] The positive copper bar 8 is supported by the positive copper bar bottom foam 10 and the positive copper bar top foam 9, so as to fix the positive copper bar 8 and absorb the pressure generated by the deformation of the positive copper bar 8 on the upper cover assembly.

[0033] It can be seen that the utility model discloses a cell installation structure of lying type, innovatively designs the lying of cell module, and through module carrier assembly 14 and positive pole copper bar 8 switching array and upper cover assembly structure. Synchronously through module pressing plate 5 and bottom foam 3, make soft package cell 19 fixed, the direction of pole of external reservation is consistent with the consistency of traditional lead-acid battery, and the overall height is reduced.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A flat lying battery module structure, comprising a lower box assembly (1), a module carrier assembly (14) and a positive copper bar (8), the module carrier assembly (14) comprising a soft package battery cell (19), a carrier positive copper bar (21), a carrier negative copper bar (18) and an FPCB (17), characterized in that: The soft package battery cell (19) is in a lying state in the module carrier assembly (14); the carrier negative copper bar (18) is connected with the negative pole, and the carrier positive copper bar (21) is connected with the positive pole through the positive copper bar.

2. The flat battery module structure according to claim 1, characterized in that: The module carrier assembly (14) is fixedly installed in the lower box assembly (1) through the module pressing plate (5) and the bottom foam (3).

3. The flat battery module structure according to claim 2, characterized in that: The bottom foam (3) is pasted on the bottom of the inner side of the lower box assembly (1); the module heat insulation pad (12) is arranged between the module pressing plate (5) and the module carrier assembly (14); the side where the carrier positive copper bar (21) and the carrier negative copper bar (18) of the module carrier assembly (14) are located is provided with the carrier insulating sheet (15) between the lower box assembly (1).

4. The flat battery module structure according to claim 1, 2 or 3, characterized in that: The positive copper bar (8) is fixed on the module pressing plate (5) through the positive copper bar support (6).

5. The flat battery module structure of claim 4, wherein: The lower box assembly (1) is provided with a sealing ring at the top edge, and the sealing ring is provided with a circular arc transition at the box bolt mounting hole position; the module pressing plate (5) is provided with a positive copper bar support fixing hole and a positioning hole (24).

6. The lying battery module structure according to any one of claims 1 to 3, 5, characterized in that: The upper and lower surfaces of the positive copper bar (8) are provided with a positive copper bar top foam (9) and a positive copper bar bottom foam (10); the lower box assembly (1) is fixed with a breathable film (26) in the form of back adhesive paste.

7. The lying battery module structure according to any one of claims 2-3, characterized in that: The module pressing plate (5) is a crimping boss structure composed of a middle part and a periphery; the middle part is provided with a module pressing plate reinforcing rib (22) and a positive copper bar support fixing hole and positioning hole (24), and the periphery is provided with a pressing plate positioning hole (23) and a pressing plate fixing hole (25).

8. The flat battery module structure according to any one of claims 1-3, 5, characterized in that: The soft package battery cell (19) is fixed by winding with a cell fixing adhesive tape (20) or by gluing.

9. The flat battery module structure according to any one of claims 1-3, 5, characterized in that: The lower box assembly (1) and the carrier negative copper bar (18) and the carrier positive copper bar (21) are assembled by using a hot melting method or by using an integrated injection molding.

10. The flat battery module structure according to any one of claims 1-3, 5, characterized in that: The cell output positive and negative pole pieces of the soft package battery cell (19) are connected with the carrier positive copper bar (21) and the carrier negative copper bar (18) respectively.

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