New energy automobile power box

Abstract

The utility model provides a new energy automobile power box which comprises a box body, a box cover, a buffering mechanism and a limiting mechanism. The box cover is arranged above the box body, a buffering mechanism is arranged on the inner side of the box cover, a limiting mechanism is arranged in the box body, and a safety assembly is arranged on the limiting mechanism. Through the arrangement of the buffer mechanism, the limiting mechanism and the safety assembly, the safety of the power box is ensured, and explosion is prevented from being further expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a new energy vehicle power box. Background Art

[0002] New energy generally refers to renewable energy that is developed and utilized on the basis of new technologies, including solar energy, biomass energy, wind energy, geothermal energy, wave energy, ocean current energy and tidal energy, as well as thermal circulation between the ocean surface and deep layers. In addition, there are hydrogen energy, biogas, alcohol, methanol, etc.; and coal, oil, natural gas, hydropower and other energies that have been widely used are called conventional energy; with the limited nature of conventional energy and the increasingly prominent environmental problems, new energy with the characteristics of environmental protection and renewableness is increasingly valued by various countries.

[0003] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. Electric vehicle batteries are divided into two categories, batteries and fuel cells. Batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries. Fuel cells are specifically used in fuel cell electric vehicles, including alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC), proton exchange membrane fuel cells (PEMFC), and direct methanol fuel cells (DMFC). When leaving the factory, the batteries for new energy power sources for vehicles need to be tested, and during the test, the batteries need to be placed in the power box and stored separately to reduce the risk of explosion caused by placing the batteries together.

[0004] For example, the patent document with publication number CN216268711U discloses a new energy vehicle power box with an explosion-proof structure, including a power box body, a conduction tube and a motor, the top of the power box body is fixedly connected with a conduction tube, and the top of the conduction tube is provided with a nut through a thread, the top of the power box body is installed with a motor, the inside of the conduction tube is provided with a shaft through a bearing, and the back end of the shaft passes through the conduction tube and extends to the outside of the conduction tube and is connected to the output end of the motor through a bevel gear, and the front end of the shaft is connected to a first transmission rod through a bevel gear; the patent structure enables the automobile power box to cool down through various components when the automobile power box is heated due to long-term operation, and the cooling method can ensure that the automobile power box maintains the best constant temperature state during operation, thereby avoiding the cause of the explosion of the automobile power box to the greatest extent; however, there is no protection device in the box, and once the battery explodes, the safety of the power box cannot be guaranteed. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to ensure the safety of the power supply box and prevent the explosion from further expanding.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] A new energy vehicle power box comprises a box body (1), a box cover (2), a buffer mechanism (4), and a limit mechanism (5); the box cover (2) is arranged above the box body (1), the buffer mechanism (4) is arranged on the inner side of the box cover (2), the limit mechanism (5) is arranged inside the box body (1), and a safety component is arranged on the limit mechanism (5).

[0008] Beneficial effect: By setting up the buffer mechanism, the limit mechanism and the safety component, the safety of the power box is ensured and the explosion is prevented from further expanding.

[0009] Furthermore, a box cover (2) is snap-fitted and connected to the top of the box body (1).

[0010] Furthermore, both sides of the box cover (2) are connected with snap-fitting parts (21), and both sides of the box body (1) are fixed with matching fixing parts (11) near the snap-fitting parts (21), and the box cover (2) can be snap-fitted and locked with the fixing parts (11) on the box body (1) by means of the snap-fitting parts (21).

[0011] Furthermore, an air release valve (22) is symmetrically mounted on the top wall of the box cover (2).

[0012] Beneficial effect: By setting the air release valve, the gas inside the box can be released, reducing the occurrence of safety accidents.

[0013] Furthermore, the buffer mechanism (4) comprises a return spring (402) and an explosion-proof plate (404); the return spring (402) is arranged on the bottom wall of the box cover (2); and the explosion-proof plate (404) is fixed to the free end of the return spring (402).

[0014] Furthermore, the buffer mechanism (4) further comprises a base plate (401), the base plate (401) being fixed on the bottom wall of the box cover (2), and a return spring (402) being fixed at the center position of the bottom wall of the base plate (401).

[0015] Furthermore, the buffer mechanism (4) further comprises a buffer pad (403), and the buffer pads (403) are symmetrically arranged along the center position of the substrate (401).

[0016] Beneficial effect: Through the cooperation between the reset spring and the buffer pad, when the explosion-proof plate moves toward the top under impact, the reset spring is used for one buffering, and the buffer pad is used for two buffering, which can effectively reduce the damage to the power box.

[0017] Furthermore, limiting mechanisms (5) are fixed on both sides of the interior of the box body (1).

[0018] Furthermore, the limiting mechanism (5) includes a telescopic spring (501), a clamping slide (502), a clamping plate (503), and a thermal insulation pad (504); two telescopic springs (501) are provided, which are respectively installed inside the bottom groove of the box body (1) and on the inner wall of the box body (1); the outer end of the telescopic spring (501) in the groove is fixed with a clamping slide (502), and the clamping slide (502) is slidably connected to the groove; the end of the clamping slide (502) away from the telescopic spring (501) is fixed with a clamping plate (503), and the outer surface of the clamping plate (503) is bonded with a thermal insulation pad (504), and a safety component is arranged inside the thermal insulation pad (504).

[0019] Beneficial effect: Through the cooperation of the telescopic spring, the clamping slide, the clamping plate and the heat-insulating rubber pad, the batteries of different sizes can be limited, the displacement of the batteries can be reduced, and the batteries can be prevented from being hit and causing accidents.

[0020] Furthermore, the safety component comprises an airbag (6), a powder fire extinguishing agent (7), and a contact head (8); the airbag (6) is fixed inside the thermal insulation rubber pad (504); the airbag (6) is filled with a powder fire extinguishing agent (7); and the outer side of the airbag (6) penetrates the thermal insulation rubber pad (504) and is connected to the contact head (8).

[0021] Beneficial effect: Through the cooperation of the airbag, powder fire extinguishing agent and contact head, when an explosion occurs inside, the contact head is damaged, causing the powder fire extinguishing agent inside the airbag to spray out to reduce the fire and improve the safety of the power box.

[0022] The advantages of the utility model are:

[0023] The utility model ensures the safety of the power box and prevents the explosion from further expanding by arranging the buffer mechanism, the limit mechanism and the safety component.

[0024] The utility model can release the gas inside the box body by setting the air release valve, thereby reducing the occurrence of safety accidents.

[0025] The utility model uses the reset spring and the buffer pad to cooperate with each other. When the explosion-proof plate moves toward the top under impact, the reset spring is used to perform a buffer once, and the buffer pad is used to perform a buffer twice, so that the damage to the power box can be effectively reduced.

[0026] The utility model can limit the position of batteries of different sizes through the mutual cooperation of the telescopic spring, the clamping slide seat, the clamping plate and the heat-insulating rubber pad, reduce the displacement of the battery, and prevent the battery from being hit and causing accidents.

[0027] The utility model uses the cooperation of the airbag, the powder fire extinguishing agent and the contact head. When an explosion occurs inside, the contact head is damaged, causing the powder fire extinguishing agent inside the airbag to be sprayed out to reduce the fire, thereby improving the safety of the power box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of a power box for a new energy vehicle according to a first embodiment of the utility model;

[0029] Figure 2 This is an assembly diagram of a box cover and a buffer mechanism in a power box of a new energy vehicle according to a first embodiment of the utility model;

[0030] Figure 3 This is an assembly diagram of a box body and a limiting mechanism in a power box for a new energy vehicle according to a first embodiment of the utility model;

[0031] Figure 4 for Figure 3 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0033] Embodiment 1

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a new energy vehicle power box, including a box body 1, a box cover 2, a buffer mechanism 4, and a limiting mechanism 5. The box cover 2 is snap-connected on the top of the box body 1, and both sides of the box cover 2 are connected with snap-fitting fasteners 21 for snap-fitting connection. The buffer mechanism 4 is fixed on the bottom wall of the box cover 2, and the air release valve 22 is symmetrically installed on the top wall of the box cover 2; both sides of the box body 1 are fixed with matching fixing members 11 near the snap-fitting fasteners 21, and the box cover 2 can be snap-fitted and locked with the fixing members 11 on the box body 1 by using the snap-fitting fasteners 21, so as to improve the overall sealing of the box body; grooves are symmetrically opened on the bottom of the box body 1 (not shown in the figure), and limiting mechanisms 5 are fixed on both sides of the inside of the box body 1.

[0035] like Figure 2 As shown, the buffer mechanism 4 includes a base plate 401, a return spring 402, a buffer pad 403 and an explosion-proof plate 404. The base plate 401 is fixed on the bottom wall of the box cover 2. The return spring 402 is fixed at the center position of the bottom wall of the base plate 401, and the buffer pad 403 is symmetrically arranged along the center position of the base plate 401. The explosion-proof plate 404 is fixed at the free end of the return spring 402; the explosion-proof plate 404 is elastically connected to the bottom wall of the box cover 2 by the return spring 402, so that when the battery explodes, the elastically connected explosion-proof plate 404 can be used for buffering, thereby reducing the impact force on the box cover 2. When the explosion-proof plate 404 is impacted and moves toward the top, the return spring 402 is used for one buffering, and the buffer pad 403 is used for two buffering, which can effectively reduce the damage to the power box.

[0036] like Figure 3 , Figure 4 As shown, the limiting mechanism 5 includes a telescopic spring 501, a clamping slide 502, a clamping plate 503, and a heat-insulating rubber pad 504; two telescopic springs 501 are provided, which are respectively installed in the bottom groove of the box body 1 and on the inner wall of the box body 1; the outer end of the telescopic spring 501 in the groove is fixed with a clamping slide 502, and the clamping slide 502 is slidably connected with the groove, and the clamping slide 502 is fixed with a clamping plate 503 at one end away from the telescopic spring 501, and the outer surface of the clamping plate 503 is bonded with a heat-insulating rubber pad 504, and a cavity is provided inside the heat-insulating rubber pad 504, and a safety component is fixed in the cavity of the heat-insulating rubber pad 504, and the safety component includes an airbag 6, a powder fire extinguishing agent 7, and a contact head 8, and the airbag 6 is fixed inside the cavity of the heat-insulating rubber pad 504, and the airbag 6 is filled with a powder fire extinguishing agent 7, and the outer side of the airbag 6 penetrates the heat-insulating rubber pad 504 and is connected with a contact head 8;

[0037] like Figure 3 , Figure 4 As shown, the groove at the bottom of the box body 1 and the telescopic spring 501 on the inner wall of the box body 1 enable the clamping slide 502 to slide elastically, and combined with the clamping plate 503, the battery can be adaptively clamped, so as to facilitate the limiting of batteries of different sizes, reduce the displacement of the battery, and prevent the battery from being hit and causing accidents; the airbag 6 is embedded in the inside of the thermal insulation pad 504, and when an explosion occurs inside, the contact head 8 is damaged, causing the powder fire extinguishing agent 7 inside the airbag 6 to spray out to reduce the fire, thereby improving the safety of the power box.

[0038] When in use, first open the box cover 2, then place the battery inside the box body 1, then use the groove at the bottom of the box body 1 and the telescopic spring 501 on the inner wall of the box body 1 to make the clamping slide 502 slide elastically, and combine with the clamping plate 503 to adaptively clamp the battery, so as to facilitate the positioning of batteries of different sizes, reduce the displacement of the battery, and prevent the battery from being hit and causing accidents; embed the airbag 6 inside the heat-insulating rubber pad 504, and when an explosion occurs inside, the contact head 8 is damaged, causing the powder inside the airbag 6 to The fire extinguishing agent 7 is sprayed to reduce the fire. Combined with the setting of the air release valve 9, the gas inside the box body 1 can be released to reduce the occurrence of safety accidents. The return spring 402 is used to elastically connect the explosion-proof plate 404 at the bottom of the box cover 2, so that when the battery explodes, the elastically connected explosion-proof plate 404 can be used for buffering to reduce the impact force on the box cover 2. When the explosion-proof plate 404 is impacted and moves toward the top, the return spring 402 is used for one buffering, and the buffer pad 403 is used for two buffering to reduce the damage to the power box.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new energy vehicle power box, characterized in that: It comprises a box body (1), a box cover (2), a buffer mechanism (4), and a limiting mechanism (5); The box cover (2) is arranged above the box body (1), a buffer mechanism (4) is arranged on the inner side of the box cover (2), a limit mechanism (5) is arranged inside the box body (1), and a safety component is arranged on the limit mechanism (5).

2. A new energy vehicle power box according to claim 1, characterized in that: The top of the box body (1) is snap-connected with a box cover (2).

3. A new energy vehicle power box according to claim 2, characterized in that: Both sides of the box cover (2) are connected with snap-fitting fasteners (21), and both sides of the box body (1) are fixed with matching fixing members (11) near the snap-fitting fasteners (21). The box cover (2) can be snap-fitted and locked with the fixing members (11) on the box body (1) by means of the snap-fitting fasteners (21).

4. A new energy vehicle power box according to claim 1, characterized in that: An air release valve (22) is symmetrically mounted on the top wall of the box cover (2).

5. The new energy vehicle power box according to claim 1, characterized in that: The buffer mechanism (4) comprises a return spring (402) and an explosion-proof plate (404); the return spring (402) is arranged on the bottom wall of the box cover (2); and the explosion-proof plate (404) is fixed to the free end of the return spring (402).

6. A new energy vehicle power box according to claim 5, characterized in that: The buffer mechanism (4) further comprises a base plate (401), wherein the base plate (401) is fixed on the bottom wall of the box cover (2), and a return spring (402) is fixed at the center position of the bottom wall of the base plate (401).

7. A new energy vehicle power box according to claim 6, characterized in that: The buffer mechanism (4) further comprises a buffer pad (403), and the buffer pad (403) is symmetrically arranged along the center position of the substrate (401).

8. The new energy vehicle power box according to claim 1, characterized in that: Limiting mechanisms (5) are fixed on both sides of the interior of the box body (1).

9. A new energy vehicle power box according to claim 8, characterized in that: The limiting mechanism (5) comprises a telescopic spring (501), a clamping slide (502), a clamping plate (503), and a heat-insulating rubber pad (504); two telescopic springs (501) are provided, which are respectively installed inside the bottom groove of the box body (1) and on the inner wall of the box body (1); the outer end of the telescopic spring (501) in the groove is fixed with a clamping slide (502), and the clamping slide (502) is slidably connected to the groove; the end of the clamping slide (502) away from the telescopic spring (501) is fixed with a clamping plate (503); the outer surface of the clamping plate (503) is bonded with a heat-insulating rubber pad (504), and a safety component is arranged inside the heat-insulating rubber pad (504).

10. A new energy vehicle power box according to claim 9, characterized in that: The safety component comprises an airbag (6), a powder fire extinguishing agent (7), and a contact head (8); the airbag (6) is fixed inside the thermal insulation rubber pad (504); the airbag (6) is filled with a powder fire extinguishing agent (7); and the outer side of the airbag (6) penetrates the thermal insulation rubber pad (504) and is connected to the contact head (8).

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