Parking starting battery pack structure

Abstract

The utility model discloses a parking starting battery pack structure, and belongs to the technical field of battery packs. Comprising a battery module, a circuit module, a box-type shell provided with a battery containing cavity and an upper cover capable of blocking a top opening of the battery containing cavity, the battery containing cavity comprises a battery chamber where the battery module can be embedded and a wiring chamber capable of storing the circuit module, and a front baffle capable of abutting against the side edge of the battery module is arranged on the box-type shell; reinforcing ribs are arranged on the side wall and the bottom of the battery chamber; pressing sheets capable of pressing the tops of the battery modules are arranged on the reinforcing ribs; a partition plate and an elastic insulating sheet are arranged between the side wall of the battery chamber and the battery module; heating pieces are arranged on the inner interlayer and the outer side of the battery module, and an external assembly which can be electrically connected with the battery module and the circuit module is arranged outside the upper cover; the parking starting battery pack structure can solve the problems that a battery pack structure in the prior art is poor in environmental adaptability and cannot effectively resist vibration impact.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery packs, and particularly relates to a parking start battery pack structure. Background Art

[0002] With the improvement of environmental awareness and the progress of battery technology, the disadvantages of traditional lead-acid batteries in vehicles have gradually emerged, including short service life, large weight, easy power loss, etc. These problems limit the performance of lead-acid batteries and the user experience. In contrast, lithium batteries have the advantages of high energy density, long service life, light weight, etc., and can better meet the requirements of modern cars for high performance and environmental protection. Therefore, from the perspective of the automotive starting battery market, using lithium batteries instead of lead-acid batteries is the future development trend.

[0003] Since the vehicle application environment is more complex and changeable than that of household products, and is greatly affected by the climate environment, geographical environment, and driving road conditions, there is an urgent need for a parking start battery pack structure that is highly adaptable to the environment, resistant to vibration and shock, and waterproof and dustproof. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a parking start battery pack structure, which can solve the problems of poor environmental adaptability and inability to effectively resist vibration and shock in the existing battery pack structure.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a parking start battery pack structure, including a battery module, a circuit module, a box-shaped outer shell provided with a battery accommodation cavity, and an upper cover capable of sealing the top opening of the battery accommodation cavity. The battery accommodation cavity includes a battery chamber capable of embedding the battery module and a wiring chamber capable of storing the circuit module, and a front baffle capable of abutting against the side of the battery module is provided on the box-shaped outer shell;

[0006] Wherein, reinforcing ribs are provided on both the side wall and the bottom of the battery chamber, and pressing pieces capable of pressing down on the top of the battery module are provided on the reinforcing ribs;

[0007] Partition plates and elastic insulating sheets are provided between the side wall of the battery chamber and the battery module;

[0008] Heating sheets are provided inside the inner layer and outside the battery module, and external components capable of being electrically connected to the battery module and the circuit module are provided outside the upper cover.

[0009] Optionally, the circuit module includes a circuit control board and a protection board. An installation ear seat for installing the protection board is provided on the side wall of the cable arrangement chamber. The circuit control board is arranged on the protection board. The top of the protection board is fixed to the installation ear seat by bolts, and a buffer block is arranged between the bottom of the protection board and the installation ear seat.

[0010] Optionally, heat conducting sheets are provided between the protection board and the circuit control board, and between the protection board and the box-shaped housing.

[0011] Optionally, a heat conducting adhesive is provided between the heating sheet and the battery module.

[0012] Optionally, flange portions are provided on the outer periphery of the top of the box-shaped housing and the outer periphery of the upper cover.

[0013] Optionally, a sealing gasket is provided between the box-shaped housing and the upper cover.

[0014] Optionally, the external components include connection terminals, a switch, and an antenna.

[0015] Optionally, the box-shaped housing is an integral steel housing.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: Reinforcing ribs are provided inside the box-shaped housing, and the upper cover is hermetically connected to the top, increasing the strength and dust and water protection performance of the battery pack structure. The top of the battery module is fixed using a pressing plate, and the front part is limited by a front baffle. A partition and an elastic insulating sheet are used to isolate the battery module from the housing, preventing short circuits between the battery module and the box-shaped housing, and enabling the battery pack structure to have good shock absorption and impact resistance performance. A heating sheet is provided inside the sandwich layer and externally attached to the battery module, enabling the battery module to operate normally in a low-temperature environment and enhancing the environmental adaptability of the battery pack structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is a schematic structural diagram of the parking start battery pack structure in the preferred embodiment of the present utility model;

[0019] Figure 2 is a schematic structural diagram when the battery module is placed inside the box-shaped housing in the preferred embodiment of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the battery module, the partition, and the elastic insulating board in the preferred embodiment of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the box-shaped housing in the preferred embodiment of the present utility model;

[0022] Figure 5 It is a partial structural schematic diagram of the box-shaped outer shell in the preferred embodiment of the present utility model;

[0023] Figure 6 It is in the preferred embodiment of the present utility model Figure 5 A partial structural schematic diagram from another perspective;

[0024] Among them, 1 is the battery module; 102 is the partition; 103 is the elastic insulating sheet; 104 is the heating sheet; 2 is the box-shaped outer shell; 201 is the reinforcing rib; 3 is the pressing sheet; 4 is the front baffle; 5 is the upper cover; 501 is the gasket; 503 is the terminal; 504 is the switch; 505 is the antenna; 6 is the circuit control board; 601 is the protection board; 602 is the mounting ear seat; 603 is the buffer block; 604 is the heat conducting sheet. Specific embodiments

[0025] Now, the present utility model will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If this specific posture changes, then such directional indications will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As Figures 1-6 shown, a parking start battery pack structure includes a battery module 1, a circuit module, a box-shaped outer shell 2 provided with a battery accommodation cavity, and an upper cover 5 capable of sealing the top opening of the battery accommodation cavity. The battery accommodation cavity includes a battery chamber capable of embedding the battery module 1 and a wiring chamber capable of storing the circuit module, and a front baffle 4 capable of abutting against the side of the battery module 1 is provided on the box-shaped outer shell 2;

[0028] Among them, reinforcing ribs 201 are provided on both the side wall and the bottom of the battery chamber, and pressing pieces 3 capable of pressing down on the top of the battery module 1 are provided on the reinforcing ribs 201;

[0029] A partition plate 102 and an elastic insulating sheet 103 are provided between the side wall of the battery chamber and the battery module 1;

[0030] Heating sheets 104 are provided inside the interlayer and outside of the battery module 1, and an external connection component capable of electrically connecting with the battery module 1 and the circuit module is provided outside the upper cover 5.

[0031] Specifically, the upper cover 5 is hermetically connected to the box-shaped outer shell 2, and can completely block the battery accommodation cavity after the upper cover 5 and the box-shaped outer shell 2 are installed. The battery module 1 includes a plurality of battery cells arranged in a matrix, and elastic insulating sheets 103 are also provided between the battery cells. Through the elastic insulating sheets 103 between the battery cells inside the battery module 1 and between the battery module 1 and the side wall of the battery chamber, the dimensional deviation caused by the superposition of the thickness tolerances of the battery cells can be compensated, and insulation and shock absorption effects can be achieved, increasing the safety of the battery module 1. At the same time, the interlayer between the battery cells in the battery module 1 and the externally attached heating sheets 104 can appropriately heat the battery pack when the battery pack structure is in a low-temperature environment, raising the temperature inside the battery accommodation cavity and protecting the battery module 1 and the circuit module; the reinforcing ribs 201 provided in the battery chamber can enhance the strength of the box-shaped housing, enabling the box-shaped housing to have better anti-external impact performance. At the same time, the stress generated by the swelling of the battery cells can also be effectively released, preventing the box-shaped housing from being deformed or cracked due to stress, and enhancing the safety of the battery pack structure; the reinforcing ribs 201 and the pressing pieces 3 are tightly fitted and installed on the outer periphery of the battery module 1, which can prevent the battery cells from swelling. In this technical solution, the top of the battery module 1 is fixed using the pressing pieces 3, the front part is limited using the front baffle 4, and the battery module 1 and the outer shell are isolated using the partition plate 102 and the elastic insulating sheet 103, which can prevent a short circuit between the battery module 1 and the box-shaped outer shell 2, and at the same time can also play a role in shock absorption and anti-impact protection.

[0032] As described above, the battery module 1 and the circuit module are respectively placed in the battery chamber and the wiring chamber, with a simple structure, convenient for assembly and disassembly. At the same time, the box-shaped outer shell 2 is an integral steel outer shell, which can greatly increase the strength of the battery pack structure.

[0033] Further, specifically, as Figure 3 、 Figure 5 、 Figure 6As shown in the figure, the circuit module includes a circuit control board 6 and a protection board 601. An installation ear seat 602 for installing the protection board 601 is provided on the side wall of the cable arrangement chamber. The circuit control board 6 is arranged on the protection board 601. The top of the protection board 601 is fixed to the installation ear seat 602 by bolts, and a buffer block 603 is arranged between the bottom of the protection board 601 and the installation ear seat 602. The installation ear seat 602 is a thin metal sheet with a certain elasticity. The buffer block 603 is made of materials such as rubber and plastic. Since the top of the protection board 601 is fixed by bolts and the bottom is limited by the buffer block 603, when the battery pack structure encounters vibration and bumps, the vibration of vehicle driving can be effectively prevented from being directly transmitted to the circuit control board 6, preventing adverse effects on the circuit control board 6.

[0034] Further, as Figure 6 shown, heat-conducting sheets 604 are arranged between the protection board 601 and the circuit control board 6, and between the protection board 601 and the box-shaped housing, which can enable the internal heat to be quickly dissipated through the box-shaped outer shell 2, avoiding overheating of the circuit control board 6.

[0035] Further, a heat-conducting adhesive is arranged between the heating sheet 104 and the battery module 1 to improve the efficiency of heat conduction.

[0036] Further, flange parts are arranged on the outer periphery of the top of the box-shaped outer shell 2 and the outer periphery of the upper cover 5, which is convenient for assembly.

[0037] Further, a sealing gasket 501 is arranged between the box-shaped outer shell 2 and the upper cover 5 to increase the sealing performance between the box-shaped outer shell 2 and the upper cover 5, so that the battery pack structure in this technical solution has good waterproof and dustproof performances.

[0038] In this technical solution, the external components include a terminal 503, a switch 504, and an antenna 505. The terminal 503, the switch 504, and the antenna 505 are prior arts, all having functions such as waterproof and dustproof, and when installed on the box-shaped structure, they will not affect the sealing performance between the box-shaped structure and the upper cover 5.

[0039] Working principle: The elastic insulating sheets 103 between the battery cells inside the battery module 1 and between the battery module 1 and the side wall of the battery chamber can compensate for the dimensional deviation caused by the superposition of the thickness tolerances of the battery cells, and play the roles of insulation and shock absorption, increasing the safety of the battery module 1. At the same time, the interlayer between the battery cells in the battery module 1 and the externally attached heating sheet 104 can appropriately heat the battery pack when the battery pack structure is in a low-temperature environment, raising the temperature in the battery accommodation cavity and protecting the battery module 1 and the circuit module; the reinforcing ribs 201 provided in the battery chamber can enhance the strength of the box-shaped housing, enabling the box-shaped housing to have better anti-external impact performance. At the same time, it can also effectively release the stress generated by the swelling of the battery cells, preventing the box-shaped housing from deforming or cracking under stress and enhancing the safety of the battery pack structure; the reinforcing ribs 201 and the pressing sheet 3 are tightly fitted and installed on the outer periphery of the battery module 1, which can prevent the battery cells from swelling. In this technical solution, the top of the battery module 1 is fixed with the pressing sheet 3, and the front part is limited by the front baffle 4. The battery module 1 and the outer shell are isolated by the partition 102 and the elastic insulating sheet 103, which can prevent a short circuit between the battery module 1 and the box-shaped outer shell 2, and at the same time can also play a protective role of shock absorption and anti-impact; at the same time, since the top of the protection board 601 is fixed by bolts and the bottom is limited by the buffer block 603, when the battery pack structure encounters vibration and bumps, it can effectively prevent the vibration of vehicle driving from being directly transmitted to the circuit control board 6, preventing adverse effects on the circuit control board 6. The battery pack structure in this technical solution has strong environmental adaptability, is resistant to vibration and impact, and is waterproof and dustproof, and can be used in a variety of scenarios.

[0040] Based on the ideal embodiments of the present utility model as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A parking start battery pack structure, characterized in that: It includes a battery module (1), a circuit module, a box-shaped housing (2) provided with a battery accommodation cavity, and an upper cover (5) capable of sealing the top opening of the battery accommodation cavity. The battery accommodation cavity includes a battery chamber capable of embedding the battery module (1) and a cable routing chamber capable of storing the circuit module. A front baffle (4) capable of abutting against the side of the battery module (1) is provided on the box-shaped housing (2). Among them, reinforcing ribs (201) are provided on both the side wall and the bottom of the battery chamber, and pressing pieces (3) capable of pressing down on the top of the battery module (1) are provided on the reinforcing ribs (201). A partition (102) and an elastic insulating sheet (103) are provided between the side wall of the battery chamber and the battery module (1). Heating sheets (104) are provided on the inner sandwich and the outside of the battery module (1), and an external connection component capable of electrically connecting to the battery module (1) and the circuit module is provided outside the upper cover (5).

2. The parking start battery pack structure according to claim 1, wherein: The circuit module includes a circuit control board (6) and a protection board (601). An installation ear seat (602) for installing the protection board (601) is provided on the side wall of the cable routing chamber. The circuit control board (6) is arranged on the protection board (601). The top of the protection board (601) is fixed to the installation ear seat (602) by bolts, and a buffer block (603) is provided between the bottom of the protection board (601) and the installation ear seat (602).

3. The parking start battery pack structure according to claim 2, characterized in that: Thermal conductive sheets (604) are provided between the protection board (601) and the circuit control board (6), and between the protection board (601) and the box-shaped housing.

4. The parking start battery pack structure according to claim 1, characterized in that: A thermal conductive adhesive is provided between the heating sheet (104) and the battery module (1).

5. The parking start battery pack structure according to claim 1, characterized in that: Flange portions are provided on the outer periphery of the top of the box-shaped housing (2) and the outer periphery of the upper cover (5).

6. The parking start battery pack structure according to claim 1, characterized in that: A sealing gasket (501) is provided between the box-shaped housing (2) and the upper cover (5).

7. The structure of the parking start battery pack according to claim 1, characterized in that: The external connection component includes a terminal (503), a switch (504), and an antenna (505).

8. The structure of the parking start battery pack according to claim 1, characterized in that: The box-shaped housing (2) is an integral steel housing.

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