Connecting structure for fixing battery module

Abstract

The utility model discloses a connecting structure for fixing a battery module, which comprises a pressing plate, two T-shaped inserting rods and a plurality of side plates, a plurality of L-shaped abutting plates are arranged on the pressing plate at intervals, two ends of the pressing plate are respectively provided with a first through hole, a plurality of elastic balls are arranged on the inserting rods, and the elastic balls are arranged on the pressing plate. The side plate is arranged on one side of the module and provided with L-shaped bent parts, and second through holes are formed in two of the bent parts. According to the utility model, the pressing plate and the plurality of side plates are connected into a whole, so that the weight is increased relative to that of a single module, the module cannot vibrate up and down in the Z-axis direction, the safety of the battery pack in the driving process is met, and the whole structure is simple, convenient to disassemble and assemble and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a connection structure for fixing a battery module. Background Art

[0002] A battery module is a unit assembled from multiple cells to provide higher voltage and capacity. It is a component in a battery system and is usually composed of several cells, connectors, a battery management system, and a casing. The main function of a battery module is to connect multiple cells together to increase the voltage and energy storage capacity of the battery system. The existing battery modules are relatively long, and their vibration and modal strength in the Z-axis direction are relatively weak. In order to ensure the stability and strength of the module, a multi-piece plastic strip structure is currently used in the middle of the large module. The structure is feasible but the cost is high and there are shortcomings. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a connection structure for fixing a battery module.

[0004] The technical solution of the utility model: a connection structure for fixing a battery module, comprising a pressing plate, two T-shaped insertion rods and a plurality of side plates, wherein a plurality of L-shaped abutment plates are arranged at intervals on the pressing plate, a first through hole is arranged at each end of the pressing plate, a plurality of elastic balls are arranged on the insertion rods, the side plate is arranged on one side of the module and is provided with an L-shaped bending portion, wherein two of the bending portions are provided with second through holes.

[0005] Preferably, the pressure plate is a sheet metal pressure plate.

[0006] Preferably, an insulating member is provided on the pressing plate.

[0007] Preferably, a U-shaped groove is provided on the pressing plate.

[0008] Preferably, the insertion rod is a long insertion rod, and a plurality of the elastic balls are arranged at the bottom of the insertion rod.

[0009] The beneficial effects of the utility model are as follows: in the utility model, the pressure plate and several side plates are connected into a whole, and the weight of a single module is increased so that it will not vibrate up and down in the Z-axis direction, thereby ensuring the safety of the battery pack during driving, and the overall structure is simple, easy to disassemble and assemble, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a stereoscopic diagram of the overall structure of the preferred embodiment of the utility model;

[0011] Figure 2 This is a front view of the overall structure of the preferred embodiment of the utility model;

[0012] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0013] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0014] Figure 5 It is a side view of the pressing plate in the preferred embodiment of the utility model;

[0015] Figure 6 This is a front view of the insertion rod in the preferred embodiment of the utility model;

[0016] Figure 7 It is a three-dimensional diagram of several module connections.

[0017] Reference numerals: pressing plate 10 , abutting plate 101 , insulating member 102 , U-shaped groove 103 , inserting rod 2 , elastic ball 201 , side plate 3 , bending portion 301 . DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figures 1 to 7 A connection structure for fixing a battery module comprises a pressing plate 10, two T-shaped insertion rods 2 and a plurality of side plates 3, wherein a plurality of L-shaped abutment plates 101 are arranged at intervals on the pressing plate 10, a first through hole is arranged at each end of the pressing plate 10, a plurality of elastic balls 201 are arranged on the insertion rods 2, the side plate 3 is arranged on one side of the module and is provided with an L-shaped bending portion 301, wherein two of the bending portions 301 are provided with second through holes. In the utility model, side panels 3 are provided on both sides of a single module, and several modules equipped with side panels 3 are placed in the battery box. Since a bending portion 301 is provided on the side panel 3 and an abutment plate 101 is provided at the bottom of the pressing plate 10, when the pressing plate 10 is installed, the pressing plate 10 is pushed so that the several abutment plates 101 respectively cooperate with the bending portion 301, and the insertion rod 2 passes through the first through hole at the end of the pressing plate 10 and the second through hole on the outermost bending portion 301 in sequence, and the pressing plate 10 is limited horizontally and vertically so that it cannot move, and then the several modules are connected into a whole through the pressing plate 10 and the several side panels 3, and the weight of the single module becomes larger, so that it will not vibrate up and down in the Z-axis direction.

[0020] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0021] In this embodiment, the pressing plate 10 is a sheet metal pressing plate, which reduces the weight of the pressing plate 10 and further reduces the weight of the entire battery box.

[0022] In this embodiment, an insulating member 102 is provided on the pressing plate 10 to isolate it from the box cover to ensure insulation safety.

[0023] In this embodiment, the pressing plate 10 is provided with a U-shaped groove 103 for placing an insulating member 102. Specifically, the insulating member 102 is foam.

[0024] In this embodiment, the insertion rod 2 is a long insertion rod, and a plurality of elastic balls 201 are arranged at the bottom of the insertion rod 2. When the insertion rod 2 passes through the first through hole and the second through hole, the plurality of elastic balls 201 will be squeezed by the walls of the first through hole and the second through hole, allowing the insertion rod 2 to pass through. The function of the insertion rod 2 is to limit the lateral movement of the pressure plate 10. The insertion rod 2 is a long insertion rod. When the battery box is vibrated, the insertion rod 2 will move up and down in the first through hole and the second through hole. The function of the elastic balls 201 prevents the insertion rod 2 from being vibrated and detaching from the second through hole.

[0025] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for fixing a battery module, characterized in that: The invention comprises a pressing plate (10), two T-shaped insertion rods (2) and a plurality of side plates (3); the pressing plate (10) is provided with a plurality of L-shaped abutment plates (101) at intervals; both ends of the pressing plate (10) are provided with a first through hole; the insertion rods (2) are provided with a plurality of elastic balls (201); the side plate (3) is arranged on one side of the module and is provided with an L-shaped bending portion (301); two of the bending portions (301) are provided with a second through hole.

2. A connection structure for fixing a battery module according to claim 1, characterized in that: The pressing plate (10) is a sheet metal pressing plate.

3. A connection structure for fixing a battery module according to claim 1, characterized in that: An insulating member (102) is provided on the pressing plate (10).

4. A connection structure for fixing a battery module according to claim 3, characterized in that: The pressing plate (10) is provided with a U-shaped groove (103).

5. The connection structure for fixing a battery module according to claim 1, characterized in that: The insertion rod (2) is a long insertion rod, and a plurality of elastic balls (201) are arranged at the bottom of the insertion rod (2).

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