Flame-retardant automobile electrical component shell

Abstract

The utility model relates to a flame-retardant automobile electrical component shell which comprises a bottom shell, the interior of the bottom shell is hollow, a constant-temperature assembly is arranged in a cavity in the bottom shell, a plurality of sliding grooves are formed in the bottom shell, pressure relief pipes are arranged in the sliding grooves, and air pressure ejector rods are arranged on the two sides of the top end of each pressure relief pipe. The utility model relates to the technical field of new energy battery shells. According to the flame-retardant automobile electrical component shell, when collision occurs at the bottom, force generated by collision can push the pressure relief pipe to move upwards, the pressure relief pipe corresponds to the position of the battery jar after moving upwards, high-pressure gas in the bottom shell can be sprayed out at the moment, and pressure is gradually reduced; and a large amount of heat energy can be absorbed in the process of converting the high pressure into the low pressure, so that the temperature of the collision part can be quickly reduced after collision, and the aim of preventing the battery from being on fire due to high temperature caused by collision is fulfilled.

Description

Technical Field

[0001] This utility model relates to the technical field of new energy battery housings, and in particular to a flame-retardant automotive electrical component housing. Background Technology

[0002] The specifics vary slightly depending on the type of electric vehicle. In pure electric vehicles equipped only with a battery, the battery serves as the sole power source for the vehicle's drive system.

[0003] In the existing technology, due to the chemical composition and physical characteristics of chemical batteries, when used as batteries for new energy vehicles, they are prone to explosion and fire under strong collisions, leading to vehicle destruction and personal injury accidents. At present, it is difficult to solve the problem of battery fire and explosion caused by high temperature or short circuit due to collisions from the perspective of battery chemical elements and battery structure. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flame-retardant automotive electrical component housing in order to solve the technical problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A flame-retardant automotive electrical component housing, comprising:

[0007] The bottom shell is hollow inside. A constant temperature component is installed in the cavity inside the bottom shell. Several sliding grooves are opened inside the bottom shell. Pressure relief pipes are installed inside the sliding grooves. Air pressure rods are installed on both sides of the top of the pressure relief pipes.

[0008] The upper housing has several battery slots at its bottom, and modular batteries are slidably installed inside the battery slots. The top of the upper housing has series wires for connecting the various modular batteries in series.

[0009] Furthermore, the top of the inner side of the groove is provided with an air guide hole that communicates with the internal cavity of the bottom shell.

[0010] Furthermore, the pneumatic push rod includes a sliding tube that is connected to the pressure relief tube, and a support rod is slidably installed inside the sliding tube.

[0011] Furthermore, the bottom end of the bottom shell is provided with a bottom armor, and a support groove is provided at the position of the bottom armor corresponding to the sliding groove.

[0012] Furthermore, the bottom of the module battery is provided with a support plate, the bottom of the support plate is in contact with the top of the support rod, and a spring is provided at the center of the bottom of the support plate.

[0013] Furthermore, the constant temperature component includes a bent copper tube that is coiled and inserted into the cavity inside the bottom shell. One end of the bent copper tube penetrates the bottom shell and is equipped with a water pump. The water inlet of the water pump is connected to a water tank, and a heating coil is installed inside the water tank.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. This flame-retardant automotive electrical component housing, when a collision occurs at the bottom, the force generated by the impact will push the pressure relief pipe upward. After the pressure relief pipe moves upward, it corresponds to the position of the battery compartment. At this time, the high-pressure gas inside the bottom housing will be ejected, and the pressure will gradually decrease. In the process of converting high pressure to low pressure, a large amount of heat energy will be absorbed. Therefore, after the collision, the temperature at the collision point will be reduced very quickly, so as to prevent the battery from catching fire due to high temperature caused by the collision.

[0016] 2. This flame-retardant automotive electrical component housing, after depressurization, the pressure inside the bottom shell cannot push the pneumatic push rod to push the module battery upward. Therefore, the module battery will detach from the series wires under the action of gravity, thereby achieving the purpose of separating the module battery from the series wires, disconnecting the circuit, and avoiding the purpose of battery fire due to short circuit caused by collision. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a flame-retardant automotive electrical component housing according to the present invention.

[0019] Figure 2 This is an exploded view of the structure of a flame-retardant automotive electrical component housing according to this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of a pneumatic push rod for a flame-retardant automotive electrical component housing according to the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of a temperature-regulating component for a flame-retardant automotive electrical component housing according to the present invention.

[0022] Figure 5 This is a plan view of the structure between the pressure relief pipe and the module battery of a flame-retardant automotive electrical component housing according to this utility model.

[0023] In the diagram, 1. Bottom shell; 2. Temperature control component; 21. Bending copper pipe; 22. Water pump; 23. Water tank; 3. Slide groove; 4. Pressure relief pipe; 5. Pneumatic push rod; 51. Sliding pipe; 52. Support rod; 6. Upper shell; 7. Battery slot; 8. Modular battery; 9. Series wire; 10. Air vent; 11. Bottom armor; 12. Support groove; 13. Support plate; 14. Spring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example:

[0026] Reference Figures 1-5 This utility model discloses a flame-retardant automotive electrical component housing, comprising:

[0027] The bottom shell 1 is hollow inside. A constant temperature component 2 is installed in the cavity inside the bottom shell 1. Several sliding grooves 3 are opened inside the bottom shell 1. Pressure relief pipes 4 are installed inside the sliding grooves 3. Air pressure rods 5 are installed on both sides of the top of the pressure relief pipes 4.

[0028] The upper housing 6 has several battery slots 7 at its bottom, and modular batteries 8 are slidably disposed inside the battery slots 7. The top of the upper housing 6 is provided with series wires 9 for connecting the various modular batteries 8 in series.

[0029] In this embodiment, the side wall of the bottom shell 1 is provided with an air inlet. By filling the bottom shell 1 with an inert gas such as nitrogen or other non-flammable gas, the pressure inside the bottom shell 1 is increased, and the air pressure rod 5 is pushed. The air pressure rod 5 pushes the module battery 8 upward. The bottom shell 1 and the slide groove 3 are used to install the pressure relief pipe 4. The air pressure rod 5 is used to press the module battery 8 at the top of the battery slot 7, so that the positive and negative electrodes at the top of the module battery 8 are in contact with the series wire 9, thereby achieving the purpose of connecting the module batteries 8 in series to form a battery pack.

[0030] When a collision occurs at the bottom, the force generated by the impact will push the pressure relief pipe 4 upward. After the pressure relief pipe 4 moves upward, it will correspond to the position of the battery compartment 7. At this time, the high-pressure gas inside the bottom shell 1 will be ejected, and the pressure will gradually decrease. In the process of converting high pressure to low pressure, a large amount of heat energy will be absorbed. Therefore, the temperature at the collision point will be reduced very quickly after the collision, so as to prevent high temperature from occurring.

[0031] On the other hand, after depressurization, the pressure inside the bottom shell 1 cannot push the pneumatic push rod 5 to push the module battery 8 upward. Therefore, the module battery 8 will separate from the series wire 9 under the action of gravity, thereby achieving the purpose of separating the module battery 8 from the series wire 9, disconnecting the circuit, and avoiding the purpose of battery fire caused by short circuit due to collision.

[0032] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the top of the inner side of the slide groove 3 is provided with an air guide hole 10 that communicates with the internal cavity of the bottom shell 1.

[0033] In this embodiment, by setting the air vent 10, the cavity inside the bottom shell 1 can only be connected to the pressure relief pipe 4 through the upper edge of the inner wall of the slide groove 3. Thus, when the pressure relief pipe 4 moves upward, the compressed gas inside the bottom shell 1 can only be discharged through the upper part of the pressure relief pipe 4, allowing the gas to enter the interior of the battery compartment 7, thereby achieving the purpose of precise cooling of the collision point.

[0034] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the pneumatic push rod 5 includes a sliding tube 51, which is connected to the pressure relief tube 4, and a support rod 52 is slidably arranged inside the sliding tube 51.

[0035] In this embodiment, since the sliding tube 51 and the pressure relief tube 4 are interconnected, when the inflation work is carried out inside the bottom shell 1, the air inside the bottom shell 1 will enter the interior of the pressure relief tube 4 through the air guide hole 10, and then enter the interior of the sliding tube 51 through the pressure relief tube 4. The sliding tube 51 pushes the support rod 52 upward, so that the module battery 8 can be pressed against the upper wall of the battery slot 7 to achieve the purpose of contacting the series wire 9.

[0036] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the bottom end of the bottom shell 1 is provided with a bottom armor 11, and a support groove 12 is provided at the position corresponding to the sliding groove 3 on the bottom armor 11.

[0037] In this embodiment, as Figure 5 As shown, the size of the bracket 12 is smaller than the size of the pressure relief pipe 4, so it can effectively limit the bottom end of the pressure relief pipe 4 and prevent the pressure relief pipe 4 from falling off.

[0038] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the bottom of the module battery 8 is provided with a support plate 13, the bottom of the support plate 13 is in contact with the top of the support rod 52, and a spring 14 is provided at the center of the bottom of the support plate 13.

[0039] In this embodiment, the spring 14 provides a certain pushing force to the tray 13 and the module battery 8 in the initial state. At this time, the module battery 8 is not in contact with the top of the battery slot 7. After the air pressure gradually increases, the spring 14 is stretched so that after the collision and pressure relief, the module battery 8 is pulled downward by the contraction of the spring 14, so as to quickly separate the module battery 8 from the series wire 9.

[0040] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the constant temperature component 2 includes a bent copper tube 21, which is coiled and inserted into the cavity inside the bottom shell 1. One end of the bent tube passes through the bottom shell 1 and is equipped with a water pump 22. The water inlet end of the water pump 22 is connected to a water tank 23, and a heating coil is installed inside the water tank 23.

[0041] In this embodiment, during winter, the heating coil inside the water tank 23 is in working condition, allowing water with a moving temperature to flow through the bent pipe into the cavity, maintaining a certain temperature inside the cavity, and preventing the module battery 8 from failing to contact the series wire 9 due to pressure reduction in winter.

[0042] The implementation principle of the above embodiment is as follows: when a collision occurs at the bottom, the force generated by the impact will push the pressure relief pipe 4 to move upward. After the pressure relief pipe 4 moves upward, it corresponds to the position of the battery slot 7. At this time, the high pressure gas inside the bottom shell 1 will be ejected, and the pressure will gradually decrease. In the process of converting high pressure to low pressure, a large amount of heat energy will be absorbed. Therefore, the temperature at the collision point will be reduced very quickly after the collision occurs.

[0043] At the same time, after the pressure is released, the pressure inside the bottom shell 1 cannot push the pneumatic push rod 5 to push the module battery 8 upward. Therefore, the module battery 8 will be separated from the series wire 9 under the action of gravity, thereby achieving the purpose of separating the module battery 8 from the series wire 9 and disconnecting the circuit.

[0044] In summary, this method can effectively prevent the battery from overheating and short-circuiting after a collision.

[0045] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A flame-retardant automotive electrical component housing, characterized in that, Including: The bottom shell (1) is hollow inside. A constant temperature component (2) is installed in the cavity inside the bottom shell (1). Several sliding grooves (3) are opened inside the bottom shell (1). A pressure relief pipe (4) is installed inside the sliding groove (3). A pneumatic top rod (5) is installed on both sides of the top of the pressure relief pipe (4). The upper housing (6) has several battery slots (7) at its bottom. Module batteries (8) are slidably arranged inside the battery slots (7). Series wires (9) are provided at the top of the upper housing (6) to connect the various module batteries (8) in series.

2. The flame-retardant automotive electrical component housing according to claim 1, characterized in that, The top of the inner side of the chute (3) is provided with an air vent (10) that communicates with the cavity inside the bottom shell (1).

3. The flame-retardant automotive electrical component housing according to claim 2, characterized in that, The pneumatic push rod (5) includes a sliding tube (51) which is connected to the pressure relief tube (4), and a support rod (52) is slidably installed inside the sliding tube (51).

4. The flame-retardant automotive electrical component housing according to claim 3, characterized in that, The bottom end of the bottom shell (1) is provided with a bottom armor (11), and a support groove (12) is provided at the position corresponding to the slide groove (3) of the bottom armor (11).

5. The flame-retardant automotive electrical component housing according to claim 4, characterized in that, The bottom of the module battery (8) is provided with a support plate (13), the bottom of the support plate (13) is in contact with the top of the support rod (52), and a spring (14) is provided at the center of the bottom of the support plate (13).

6. The flame-retardant automotive electrical component housing according to claim 5, characterized in that, The constant temperature component (2) includes a bent copper tube (21) which is coiled and inserted into the cavity inside the bottom shell (1). One end of the bent tube passes through the bottom shell (1) and is equipped with a water pump (22). The water inlet of the water pump (22) is connected to a water tank (23). A heating coil is installed inside the water tank (23).

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