Battery explosion-proof box

Abstract

The utility model relates to new energy automobile technical field, specifically disclose a battery explosion -proof box, including the box body of top open and the detachable cover combination on the top plate of box body, the inner surface of top plate towards box body inner chamber is fixed with metal fibre layer, dacron microfiber layer, polytetrafluoroethylene layer, silver fibre layer and polyamide fibre layer in proper order, the box body top is equipped with at least 2 connecting grooves, and the fixed plate for inserting connecting groove is fixed on the top plate, a plurality of through -holes are all set up on the groove wall of each connecting groove, and the connecting screw hole that corresponds with the number and position of through -hole is equipped with on each fixed plate, and the fixed connection of top plate and box body is realized through the insertion connecting bolt in through -hole and connecting screw hole.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, specifically to a battery explosion-proof box. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source and integrate advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and hydrogen engine vehicles.

[0003] The prior art patent document CN218867296U discloses an explosion-proof battery box. This technology provides an internal cavity for accommodating batteries through the main body structure of the box, and is equipped with a top water inlet, a bottom drain outlet, an external level gauge, and a top self-relief valve. By using the main body structure of the box as the main body for battery protection, it can effectively meet the cooling needs of the battery in case of emergencies through a water circulation structure and the level gauge, avoiding the risk of thermal runaway of the battery cells. However, in this technology, the box door is located on the side, which is inconvenient for inserting batteries. In addition, the impact resistance of its main body structure is somewhat lacking, and the connection and locking ability between the box door and the main body structure is also not good, which has a certain impact on the testing of the explosion-proof battery box. Utility Model Content

[0004] The present invention aims to provide a battery explosion-proof box to solve the problem of poor impact resistance of existing explosion-proof battery boxes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A battery explosion-proof box includes a box body with an open top and a top plate that can be detachably covered on the box body. A metal fiber layer, a polyester microfiber layer, a polytetrafluoroethylene layer, a silver fiber layer and a polyamide fiber layer are sequentially fixed on the inner surface of the top plate facing the inner cavity of the box body.

[0006] Preferably, as an improvement, the polyamide fiber layer is further fixed to the surface of the housing facing the box to further improve its impact and explosion resistance.

[0007] Preferably, as an improvement, an annular buffer pad is provided between the bottom surface of the top plate and the top surface of the box to improve the sealing effect.

[0008] Preferably, as an improvement, an explosion-proof shell is fixed to the cavity wall of the box.

[0009] Preferably, as an improvement, the top surface of the enclosure is provided with at least two connecting grooves, and a fixing plate for inserting the connecting grooves is fixed on the top plate. Multiple through holes are opened on the groove wall of each connecting groove, and each fixing plate is provided with connecting screw holes in a number and position corresponding to the through holes. The top plate and the enclosure are fixedly connected by inserting connecting bolts into the through holes and connecting screw holes. This solution improves the stability of the connection between the top plate and the enclosure by using a plug-in connection method with multiple connecting bolts, and further improves the impact resistance and explosion-proof performance.

[0010] Preferably, as an improvement, the number of connecting slots on the housing is two, and the two connecting slots are located on both sides of the housing respectively. Preferably, as an improvement, the side wall of the enclosure is provided with an observation window that allows observation of the internal cavity of the enclosure, so as to facilitate observation of the battery's condition inside the enclosure.

[0011] Preferably, as an improvement, the bottom of the box is provided with multiple casters to facilitate the transfer of the battery explosion-proof box.

[0012] Preferably, as an improvement, each moving wheel is provided with a rigid telescopic structure between itself and the box. The rigid telescopic structure is one of an adjustable telescopic rod or a lifting device, so as to facilitate the adjustment of the support length through the rigid telescopic structure, thereby ensuring that the box is adjusted to a horizontal state after the battery explosion-proof box is moved to a suitable position, avoiding the problem of unstable support or box tilting caused by uneven floor in the placement area.

[0013] Preferably, as an improvement, at least one of the moving wheels has a braking function to facilitate braking after moving to a suitable position, thus preventing the explosion-proof box from moving randomly.

[0014] Preferably, as an improvement, a support base is fixed between the rigid telescopic structure and the bottom of the box.

[0015] Preferably, as an improvement, the enclosure is equipped with a power interface and a signal interface connecting the inside and outside of the enclosure, so as to facilitate the direct connection of the power supply inside the enclosure for charging of the object under test, such as a whole vehicle or a separate power supply, after the object is placed inside, and to output the detection status as a corresponding signal through the signal interface, and to facilitate the control of the object under test through the signal interface.

[0016] The technical principles and beneficial effects of this utility model are as follows: 1. This battery explosion-proof box can be used for testing new energy vehicles or individual batteries. Through improvements to the box body, the explosion-proof and connection locking capabilities of the box have been enhanced. In actual use, the explosion-proof and impact-resistant performance of the tested object (such as a vehicle with a battery or a single battery) can be tested as needed (the number of connecting bolts used is selected according to the needs; different numbers of connecting bolts will result in different explosion-proof capabilities). It facilitates the fixing and locking of the box body and the top plate, improving its applicability for testing new energy vehicles.

[0017] 2. The open-top box facilitates the placement of the test object. After the test object is placed into the box, the fixing plate at the bottom of the top plate is aligned with the connecting slot on the box and inserted. The connecting bolts are then screwed into the through holes and connecting screw holes to fix the top plate to the box, improving the fixed connection effect between the box and the top plate.

[0018] 3. The use of metal fiber layer, polyester microfiber layer, polytetrafluoroethylene layer and silver fiber layer improves the corrosion resistance of the explosion-proof box used for explosion-proof testing, and the use of polyamide fiber layer and polypropylene fiber layer improves the impact resistance of the explosion-proof box.

[0019] 4. The use of casters at the bottom of the enclosure makes it easy to move the explosion-proof enclosure to a suitable position, and the rigid telescopic structure allows the enclosure to be adjusted to a horizontal state. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the battery explosion-proof box according to an embodiment of the present utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the battery explosion-proof box of this utility model after the top plate has been removed.

[0022] Figure 3 This is a three-dimensional structural diagram of the top plate in an embodiment of the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram showing the arrangement of the layers below the top plate in an embodiment of this utility model.

[0024] The reference numerals in the accompanying drawings include: 1. Housing; 2. Explosion-proof shell; 3. Connecting groove; 4. Connecting bolt; 5. Top plate; 6. Metal fiber layer; 7. Polyester microfiber layer; 8. Polytetrafluoroethylene layer; 9. Silver fiber layer; 10. Polyamide fiber layer; 11. Polypropylene fiber layer; 12. Buffer pad; 13. Fixing plate; 14. Connecting screw hole; 15. Observation window; 16. Support base; 17. Rigid telescopic structure; 18. Output rod; 19. Moving wheel; 20. Brake leg; 21. Power interface; 22. Signal interface. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation methods: The basic implementation examples are as follows: Figures 1 to 4 As shown.

[0026] An explosion-proof battery box includes a box body 1 with an open top. An explosion-proof shell 2 is fixedly installed on the inner wall of the box body 1. A connecting groove 3 is opened on the top surface of the box body 1, and the connecting groove 3 is located along the length of the box body 1. A top plate 5 is detachably connected to the top of the box body 1. A fixing plate 13 is fixed to the lower edge of the top plate 5. The number of fixing plates 13 is the same as the number of connecting grooves 3, and the fixing plates 13 are used to insert into the connecting grooves 13. Multiple through holes are opened on the groove wall of each connecting groove 3. The multiple through holes are arranged at equal intervals along the length of the box body 1. Each fixing plate 13 has a number and position of connecting screw holes 14 corresponding to the through holes. The top plate 5 is fixedly connected to the box body 1 by inserting connecting bolts 4 into the through holes and connecting screw holes 14. The fixing effect of the box body 1 and the top plate 5 on the battery explosion-proof box is improved by inserting multiple connecting bolts 4.

[0027] A metal fiber layer 6 is fixedly installed on the bottom surface of the area of ​​the top plate 5 facing the inner cavity of the box 1. A polyester microfiber layer 7 is fixedly installed at the lower end of the metal fiber layer 6. A polytetrafluoroethylene layer 8 is fixedly installed at the lower end of the polyester microfiber layer 7. A silver fiber layer 9 is fixedly installed at the lower end of the polytetrafluoroethylene layer 8. A polyamide fiber layer 10 is fixedly installed at the lower end of the silver fiber layer 9. A polypropylene fiber layer 11 is fixedly installed at the lower end of the polyamide fiber layer 10. Through the multi-layer structure, the explosion-proof, impact-resistant and corrosion-resistant performance of the top plate is improved.

[0028] An observation window 15 is provided on the side of the enclosure 1 in the width direction. The use of the observation window 15 facilitates the observation of the test conditions inside the enclosure 1.

[0029] A support base 16 is fixedly installed at the lower end of the housing 1. Rigid telescopic structures 17 are fixedly installed at the four corners of the lower end of the support base 16. In this embodiment, the rigid telescopic structure 17 is selected as a lifter, which is specifically an electric push rod 17. The housing of the electric push rod 17 is fixed below the support base 16. The bottom of the output rod 18 of each electric push rod 17 is fixedly installed with a moving wheel 19. The moving wheel 19 is a universal wheel. Each moving wheel 19 is equipped with a brake leg 20. The use of the brake leg 20 facilitates the braking and fixing of the moving universal wheel 19, which facilitates the movement of the battery explosion-proof box. After the box is moved into place, the support base 16 is adjusted to a horizontal state through the various rigid telescopic structures.

[0030] A power interface 21 and a signal interface 22 are installed on the housing 1 to connect the inside and outside of the housing 1, so that after the object to be tested is placed in the housing 1, it can be directly connected to the power supply in the housing 1 for charging, and the detection status can be output as a corresponding signal through the signal interface, and the object to be tested can be controlled through the signal interface.

[0031] Working principle: First, the battery explosion-proof box for testing new energy vehicles (or just the battery) is moved to a suitable position using the casters 19. Then, the brake legs 20 are used to brake and fix the casters 19. Next, the support base 16 is adjusted to a horizontal state by controlling the extension and retraction of the electric push rod 17. Then, the box body 1 and the explosion-proof shell 2 facilitate the placement of the object to be tested. After the object to be tested is placed, the top plate 5 is installed through the connecting groove 3 and the connecting bolts 4.

[0032] In summary, the battery explosion-proof box of this embodiment has good explosion-proof, impact-resistant and corrosion-resistant performance, and can also facilitate observation during the test through the observation window 15, and can be easily moved by the casters 19, and the horizontal state of the box 1 after it has been moved into place can be adjusted by the rigid telescopic structure 17.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A battery explosion-proof box, comprising an open-top box body and a detachable top plate that covers the box body, characterized in that: On the inner surface of the top plate facing the internal cavity of the box, a metal fiber layer, a polyester microfiber layer, a polytetrafluoroethylene layer, a silver fiber layer and a polyamide fiber layer are fixed in sequence. The top surface of the enclosure is provided with at least two connecting grooves. A fixing plate for inserting the connecting grooves is fixed on the top plate. Multiple through holes are opened on the groove wall of each connecting groove. Each fixing plate is provided with connecting screw holes in a number and position corresponding to the through holes. The top plate and the enclosure are fixedly connected by inserting connecting bolts into the through holes and connecting screw holes.

2. The battery explosion-proof box according to claim 1, characterized in that: A polypropylene fiber layer is also fixed to the surface of the polyamide fiber layer facing the box.

3. The battery explosion-proof box according to claim 1, characterized in that: An annular buffer pad is also provided between the bottom surface of the top plate and the top surface of the box.

4. The battery explosion-proof box according to claim 1, characterized in that: An explosion-proof shell is fixed to the cavity wall of the box.

5. The battery explosion-proof box according to claim 1, characterized in that: The box body has two connecting slots, which are located on both sides of the box body.

6. The battery explosion-proof box according to claim 1, characterized in that: The side wall of the enclosure is provided with an observation window that allows observation of the internal cavity of the enclosure.

7. A battery explosion-proof box according to any one of claims 1-6, characterized in that: The bottom of the box is equipped with multiple casters.

8. A battery explosion-proof box according to claim 7, characterized in that: Each moving wheel is equipped with a rigid telescopic structure between itself and the box. The rigid telescopic structure is one of the following: an adjustable telescopic rod or a lifting device.

9. A battery explosion-proof box according to any one of claims 1-6 and 8, characterized in that: The enclosure is equipped with power and signal interfaces that connect the inside and outside of the enclosure.

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