Anti-collision vehicle-mounted storage battery

Abstract

The utility model discloses an anti-collision type vehicle-mounted storage battery, which is used for providing electric power for a vehicle and solves the problem that the safety of the vehicle-mounted storage battery on the existing vehicle is relatively poor when the vehicle has an accident and suffers from large impact force, and adopts the technical scheme that the anti-collision type vehicle-mounted storage battery comprises a shell and is arranged in the shell, the storage battery fixing device comprises a shell, a fixing structure is arranged in the shell, and the storage battery fixing device is characterized in that the fixing structure is of a frame type structure, storage batteries are arranged in the shell in groups, one group of storage batteries are arranged in one set of fixing structure, the fixing structures are fixedly connected in the shell, the fixing structures clamp the storage batteries, and a gap is formed between the outer side face of each fixing structure and the side wall of the shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of vehicle battery structure, in particular to a kind of anti-collision vehicle battery for realizing certain anti-collision function. BACKGROUND

[0002] Motorized vehicles generally need to be provided with vehicle batteries to provide power for the driving of the vehicles or to provide power for the starting of the vehicles. Vehicle batteries are mainly arranged in two ways. One is that several batteries are directly arranged in a group in a mounting position on a vehicle in a naked manner. The other is that several batteries are arranged in a group in a closed shell, and the closed shell with the batteries is arranged in the mounting position on the vehicle. In the first arrangement of the batteries, the safety of the wiring between the batteries mainly depends on the sealing of the mounting position on the vehicle. In the second arrangement of the batteries, the safety of the wiring between the batteries mainly depends on the sealing of the closed shell. Accidents are inevitable during the driving of the vehicle. If the batteries are subjected to a large impact force in the accident, the batteries are easily damaged. In particular, if the lithium batteries are severely damaged and the shells are broken, the batteries are easily ignited and burned.

[0003] Chinese patent document (publication number: CN 218400828U) discloses a battery pack convenient to disassemble, which comprises an outer shell, a protective cover is sleeved on the outer shell, the protective cover is connected with the outer shell through a locking assembly, the inner side of the outer shell is provided with a partition plate, the partition plate is provided in multiple groups, the multiple partition plates divide the inside of the outer shell into a plurality of placement cavities, the inner side of each placement cavity is provided with a hollow placement rack, the inner side of the hollow placement rack is placed with a battery body, both sides of the battery body are provided with elastic sheets, both sides of the elastic sheet are connected with the outer shell and the partition plate, the elastic sheet is arranged in an arc shape, and the elastic sheet is in contact with the battery body. The battery pack convenient to disassemble cancels the mode of fixing by transmission screws, adopts a hollow placement rack in an insertion mode, facilitates the installation of the battery body into the outer shell, and the elastic sheet can self-adaptively clamp the battery body and cooperate with the protective cover to fix the battery body, so that when disassembled, the cumbersome steps of disassembling screws are not needed, and the battery body can be pulled out.

[0004] The battery pack discloses a closed shell, which is mainly composed of an outer shell and a protective cover sleeved on the outer shell. However, after the batteries are assembled in the outer shell, if the outer shell is deformed due to a large external force impact, the deformation of the outer shell will directly act on the batteries, which easily causes damage to the batteries, thereby affecting the safety of the batteries. UTILITY MODEL CONTENTS

[0005] The utility model needs to solve the technical problem: provide a kind of anti-collision vehicle battery, the anti-collision performance of this battery is relatively high when using.

[0006] To solve the technical problem, the utility model discloses a technical scheme: an anti-collision vehicle-mounted storage battery, which comprises a shell, a storage battery is arranged in the shell, and a fixing structure is arranged in the shell, characterized in that the fixing structure is a frame structure, the storage batteries are arranged in groups in the shell, one group of storage batteries is arranged in one set of fixing structure, the fixing structure is fixedly connected to the shell, the fixing structure clamps and connects the storage batteries, and a space is formed between the outer side of the fixing structure and the side wall of the shell.

[0007] The storage battery can be a lithium iron phosphate storage battery or a lead-acid storage battery. The shell is generally made of iron and has a certain impact resistance.

[0008] Further, the fixing structure comprises a fixing block and a partition plate connected together, and a coupling bolt is connected to the bottom of the shell through the fixing block.

[0009] Further, a coupling strip is protrudingly arranged on the bottom surface of the shell, the fixing block is stacked on the coupling strip, and the coupling bolt is threadedly connected with the coupling strip.

[0010] Further, the coupling strip is a hollow structure formed by bending a plate body.

[0011] Further, a protruding lug is arranged on the lower end surface of the fixing block, a notch is arranged on the coupling strip corresponding to the position of the lug, and the lug is inserted into the notch.

[0012] Further, an electric heating film is attached to the partition plate, the electric heating film is electrically connected with a BMS control panel arranged in the shell, a temperature sensor is connected to the BMS control panel, and the BMS control panel starts the electric heating film to heat the partition plate when the ambient temperature is lower than the set temperature during charging of the storage battery.

[0013] Further, an insulating film is arranged on the side surface of the partition plate facing the storage battery, and the storage battery is attached to the insulating film.

[0014] Further, in each group of batteries, two adjacent batteries are provided with an inter-cell foam, and the two batteries are attached to the inter-cell foam. By arranging the inter-cell foam, the batteries can be prevented from being abraded, and the batteries in the battery group can be closely arranged.

[0015] Further, a buffer pad is arranged on the bottom surface of the shell, and the batteries are arranged on the buffer pad. The buffer pad can protect the batteries and improve the stability of the batteries in the shell.

[0016] Compared with the prior art, the present application has the beneficial effects that: the frame-shaped fixing structure is arranged in the shell, the fixing structure can clamp the battery group, and the position of the batteries in the shell is stable after the fixing structure is fixed in the shell. A space is arranged between the fixing structure and the side wall of the shell, and the space can adapt to the deformation of the shell when the shell is subjected to a large external force, so that the external impact force cannot directly act on the batteries, thereby protecting the batteries in the shell and improving the safety of the batteries in the event of an accident during driving. In addition, the position of the batteries in the shell is stable, which improves the safety of the vehicle-mounted batteries. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the present anti-collision vehicle-mounted battery.

[0018] Figure 2 is Figure 1 an exploded view.

[0019] Figure 3 is Figure 2 a structure diagram after removing part of the structure in

[0020] Figure 4 is a perspective view of part of the batteries installed in the fixing structure.

[0021] Figure 5 is Figure 4 an exploded view of

[0022] In the figure, 1 is a shell, 2 is an upper cover, 3 is a connecting strip, 31 is a notch, 4 is an electric heating film, 5 is a partition plate, 6 is a BMS control panel, 7 is a fixing block, 71 is a protrusion, 8 is a fixing plate, 9 is a battery, 10 is a connecting bolt, 11 is an inter-cell foam, 12 is a buffer pad, and 13 is an insulating film. DETAILED DESCRIPTION

[0023] The anti-collision type vehicle-mounted battery is arranged on a vehicle and used for providing power for the vehicle or providing power for the electric elements on the vehicle. The structure of the vehicle-mounted battery comprises a shell 1 which is generally made of iron and has an opening for mounting a battery 9 in the shell 1. In order to close the battery 9, an upper cover 2 is buckled at the opening of the shell 1, and the upper cover 2 and the shell 1 are fixed together by a plurality of screws.

[0024] A fixing structure is arranged in the shell 1 and has a frame structure. The batteries 9 are arranged in groups in the shell 1, and a group of the batteries 9 is arranged in a set of the fixing structure. The fixing structure can be welded in the shell 1 or connected and fixed in the shell 1 by a connecting bolt 10. The fixing structure clamps the batteries 9 so that the group of the batteries 9 forms an integral whole with the fixing structure. The outer side of the fixing structure is spaced apart from the side wall of the shell 1, and the spacing is generally in centimeters. Figure 2 、 3 As shown in the drawings, two groups of the batteries 9 are arranged in the shell 1, and one group of the batteries 9 is shorter. A fixing plate 8 is arranged at the end of the shorter group of the batteries 9, and a BMS control board 6 is fixed on the outer side of the fixing plate 8 to balance the current and voltage among the batteries 9.

[0025] The fixing structure comprises a fixing block 7 and a partition plate 5 which are connected together. As shown in the drawings, a set of the fixing structure is mainly composed of two fixing blocks 7 and two partition plates 5 which are connected together. The two fixing blocks 7 are arranged at opposite sides of a group of the batteries 9, and the two partition plates 5 are arranged at the other opposite sides of the group of the batteries 9. The fixing block 7 and the partition plate 5 are generally made of aluminum alloy or stainless steel. The same side ends of the two partition plates 5 are respectively welded and fixed at opposite sides of the fixing block 7. The thickness of the fixing block 7 is greater than that of the partition plate 5. The connecting bolt 10 passes through the fixing block 7 and is connected to the bottom of the shell 1. In order to facilitate the connection and fixation of the fixing block 7, a connecting strip 3 is protrusively arranged on the bottom surface of the shell 1 and arranged in the width direction of the group of the batteries 9. The length of the connecting strip 3 corresponds to the width of the group of the batteries 9. One group of the batteries 9 corresponds to two connecting strips 3, and the distance between the two connecting strips 3 corresponds to the length of the group of the batteries 9. The fixing block 7 is stacked on the connecting strip 3, and the connecting bolt 10 is threadedly connected with the connecting strip 3. In order to facilitate quick installation, a protruding head 71 is arranged at the middle position of the lower end surface of the fixing block 7, and a notch 31 is arranged at the middle position of the connecting strip 3 to cooperate with the head 71. The connecting strip 3 is a hollow structure formed by bending an iron plate, and the connecting strip 3 is buckled on the bottom surface of the shell 1 by welding.

[0026] The side of the partition plate 5 facing the battery 9 is provided with an insulating film 13, which is usually made of PC material and is attached to the side of the partition plate 5. When the battery 9 is installed in the fixed structure, the battery 9 is attached to the insulating film 13. In each group of batteries 9, a certain elastic inter-cell foam 11 is arranged between two adjacent batteries 9, and the thickness of the inter-cell foam 11 is in the order of millimeters. The two batteries 9 are attached to the inter-cell foam 11. In order to improve the stability of the battery 9 in the shell 1, a buffer pad 12 is arranged on the bottom surface of the shell 1, which is usually made of EVA material, and the battery 9 is placed on the buffer pad 12.

[0027] The partition plate 5 is attached with an electric heating film 4, which usually has a plurality of graphite heating elements. When the electric heating film 4 is powered on, the graphite heating elements will generate heat, and the generated heat will be transmitted to the battery 9 through the partition plate 5. The electric heating film 4 is electrically connected to the BMS control board 6 arranged in the shell 1, and the BMS control board 6 is provided with a temperature sensor for sensing the ambient temperature in the shell 1. When the ambient temperature is lower than the set temperature, the BMS control board 6 starts to heat the partition plate 5 by the electric heating film 4 when charging the battery 9. The set temperature is usually -5°C.

[0028] When assembling, a group of batteries 9 is arranged together, and the inter-cell foam 11 is inserted between two adjacent batteries 9. The two partition plates 5 are clamped on the opposite sides of the group of batteries 9 by a clamp, and the two fixed blocks 7 are clamped on the other opposite sides of the group of batteries 9. The end of the partition plate 5 is welded to the corresponding side of the fixed block 7 by a laser welding machine, so that the group of batteries 9 forms a whole under the clamping of the fixed structure and can be moved and installed as a whole. The EVA buffer pad 12 is arranged on the bottom surface of the shell 1, and the group of batteries 9 is placed on the EVA buffer pad 12, and the fixed block 7 is stacked on the connecting strip 3. The connecting bolt 10 is passed through the fixed block 7, and the lower end of the connecting bolt 10 is screwed to the connecting strip 3 by rotating the connecting bolt 10, so that the group of batteries is finally fixed in the shell 1. Several groups of batteries 9 can be arranged in one shell 1, which can be arranged horizontally or vertically. After the group of batteries is arranged in the shell 1, the welding wires between the batteries 9 are welded by the wiring board, the BMS control board 6 is connected to the shell 1, the BMS control board 6 is connected to the power supply interface, and then the upper cover 2 is clamped and fixed to the shell 1.

Claims

1. An anti-collision type vehicle-mounted battery comprising a case in which a battery is disposed, and a fixing structure provided in the case, characterized in that, The fixing structure is a frame structure, the batteries are arranged in groups in the shell, and each group of batteries is arranged in a set of fixing structures which are fixedly connected in the shell and clamp the batteries.

2. The crash-protected automotive battery of claim 1, wherein The fixing structure comprises fixing blocks and a partition plate which are connected together, and the coupling bolts are connected to the bottom of the shell through the fixing blocks.

3. The crash-protected automotive battery of claim 2, wherein A coupling strip is protrusively arranged on the bottom surface of the shell, the fixing blocks are stacked on the coupling strip, and the coupling bolts are threadedly connected to the coupling strip.

4. The crash-protected automotive battery of claim 3, wherein The coupling strip is a hollow structure formed by bending a plate body.

5. The crash-protected automotive battery of claim 3, wherein A protruding lug is arranged on the lower end surface of the fixing block, and a notch corresponding to the lug is arranged on the coupling strip, and the lug is inserted into the notch.

6. The crash-protected automotive battery as set forth in any one of claims 2 to 5, wherein An electric heating film is attached to the partition plate, the electric heating film is electrically connected to a BMS control panel arranged in the shell, a temperature sensor is connected to the BMS control panel, and the BMS control panel starts the electric heating film to heat the partition plate when the ambient temperature is lower than a set temperature during charging of the batteries.

7. The crash-protected automotive battery as claimed in any one of claims 2 to 5, characterized in that An insulating film is arranged on the side surface of the partition plate facing the batteries, and the batteries are attached to the insulating film.

8. The crash-protected automotive battery as claimed in any one of claims 1 to 5, characterized in that In each group of batteries, a bubble cotton is arranged between two adjacent batteries, and the two batteries are attached to the bubble cotton.

9. The crash-protected automotive battery as claimed in any one of claims 1 to 5, characterized in that A buffer pad is arranged on the bottom surface of the shell, and the batteries are placed on the buffer pad.

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