Battery box body structure for preventing battery from burning into carriage

Abstract

The utility model discloses a battery box body structure capable of preventing a battery from burning into a carriage, which comprises a vehicle body, limiting grooves are arranged on two sides of the inner wall of the vehicle body, a battery box main body is arranged on the inner side of the vehicle body, a sealing cover body is arranged at the top of the battery box main body, and connecting rods are arranged on two sides of the bottom of the sealing cover body. And the outer wall of the connecting rod is sleeved with an extrusion plate. According to the utility model, the two groups of extrusion plates are connected through the second fusing block, the first fusing block is arranged on the extrusion plates, and the limiting mechanism is arranged in the first mounting groove, so that the second fusing block and the first fusing block are fused and contacted to extrude the limiting mechanism when combustion occurs in the battery box main body; and the limiting mechanisms leave the interiors of the corresponding limiting grooves under the elastic action of the first springs, so that the battery box main body can fall off from the vehicle body, and further combustion is prevented from easily occurring to cause greater damage to the vehicle and people.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box structure which can prevent batteries from burning in a vehicle compartment. Background Art

[0002] Batteries are one of the important components of new energy vehicles. With the continuous popularization of new energy vehicles, the market demand for batteries is also increasing. When assembling the batteries of new energy vehicles, the batteries will be assembled into battery packs and then installed in battery boxes, so as to provide a protective coating for the batteries. Finally, the battery boxes will be installed on the vehicle body to complete the assembly.

[0003] When the existing battery box structure is in use, because the internal battery pack is composed of multiple groups of batteries and is limited by existing battery technology, in some extreme cases, the battery may overheat or even burn. The battery box is completely fixed on the vehicle body, which makes it easy for further combustion to cause damage to the vehicle and personnel, and the safety performance is insufficient. Utility Model Content

[0004] The utility model aims to provide a battery box structure that prevents batteries from burning in a vehicle compartment. The battery box structure that prevents batteries from burning in a vehicle compartment automatically falls off the vehicle body through a fuse mechanism when the battery burns to solve the above-mentioned background problems.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A battery box structure for preventing batteries from burning in a vehicle compartment comprises a vehicle body, and both sides of the inner wall of the vehicle body are provided with limiting grooves.

[0007] A battery box body is provided on the inner side of the vehicle body, and a closed cover body is installed on the top of the battery box body, connecting rods are installed on both sides of the bottom of the closed cover body, and an extrusion plate is sleeved on the outer wall of the connecting rod, a first fuse block is installed on the side of the extrusion plate close to the closed cover body, and two groups of the extrusion plates are connected by a second fuse block, and first mounting grooves are opened on both sides of the battery box body, and a second mounting groove is reserved on the side of the first mounting groove close to the closed cover body;

[0008] A limiting mechanism for fixing the battery box body is arranged in the first installation groove.

[0009] As a further solution of the utility model: the connecting rod and the closed cover body are made in one piece, and the connecting rod and the extrusion plate form a sliding structure.

[0010] As a further solution of the utility model: the limiting mechanism includes a limiting support block, which passes through the first mounting groove on one side close to the closed cover body, and extends to the inside of the limiting groove and the battery box body, an extrusion block is installed on the side of the limiting support block close to the closed cover body, and a guide mounting plate is installed on the outer wall of the limiting support block, a first spring is connected between the guide mounting plate and the battery box body, and an extrusion rod is installed on the top of the guide mounting plate on the side close to the closed cover body.

[0011] As a further solution of the utility model: the cross-sectional shape of the extrusion block is trapezoidal, and the extrusion block and the limiting support block are made in one piece.

[0012] As a further solution of the utility model: air discharge pipes are installed through the bottom of both sides inside the battery box body, and air flow inlet holes are evenly opened at the top and bottom of the air discharge pipes, and closing plates are installed through both sides of the top of the air discharge pipes, and the closing plates extend to the inside of the first mounting groove, and a third spring is connected between the closing plate and the battery box body.

[0013] As a further solution of the utility model: the top of the closing plate is arc-shaped, and the closing plate forms a sliding structure with the battery box body and the airflow exhaust pipe respectively.

[0014] As a further solution of the utility model: a squeezing button is arranged inside the second mounting groove, and a second spring is connected between the squeezing button and the battery box body, a connecting wire is connected to the top of the squeezing button, and the connecting wire runs through the battery box body, and an alarm is connected to the end of the connecting wire away from the squeezing button.

[0015] Beneficial effects of the utility model:

[0016] The two groups of extrusion plates are connected by a second fuse block, the extrusion plate is provided with a first fuse block, and a limiting mechanism is provided in the first installation groove, so that when combustion occurs in the battery box body, the second fuse block and the first fuse block will be melted and contact the limiting mechanism, and the limiting mechanism will leave the corresponding limiting groove under the elastic action of the first spring, so that the battery box body can fall off the vehicle body, thereby preventing further combustion from causing greater damage to the vehicle and personnel;

[0017] An airflow discharge pipe is provided on the battery box body, and an airflow inlet hole and a closing plate are provided on the airflow discharge pipe. A third spring is connected between the closing plate and the battery box body, so that when combustion initially occurs and the second fuse block is moved halfway by the fuse limit support block, the suppression of the closing plate can be released. The third spring drives the closing plate to release the sealing of the airflow discharge pipe from the outside world, so that the burning smoke and the like are discharged through the airflow discharge pipe, thereby preventing pressurized gas and smoke from rushing out of the upper gap seal into the interior of the vehicle and causing harm to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a main structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model in a top view.

[0023] In the figure: 1. body; 2. limit groove; 3. battery box body; 4. closed cover; 5. connecting rod; 6. extrusion plate; 7. first fuse block; 8. second fuse block; 9. first mounting groove; 10. second mounting groove; 11. limit support block; 12. extrusion block; 13. guide mounting plate; 14. first spring; 15. extrusion rod; 16. extrusion button; 17. second spring; 18. connecting wire; 19. alarm; 20. airflow discharge pipe; 21. airflow inlet hole; 22. closing plate; 23. third spring. DETAILED DESCRIPTION

[0024] 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 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. Example 1

[0025] See also Figure 1-Figure 4As shown, the utility model is a battery box structure for preventing batteries from burning in a vehicle compartment, comprising a vehicle body 1, both sides of the inner wall of the vehicle body 1 are provided with a limiting groove 2, a battery box body 3 is arranged on the inner side of the vehicle body 1, and a closed cover body 4 is installed on the top of the battery box body 3, both sides of the bottom of the closed cover body 4 are provided with connecting rods 5, and the outer wall of the connecting rod 5 is sleeved with an extrusion plate 6, a first fuse block 7 is installed on the side of the extrusion plate 6 close to the closed cover body 4, and the two groups of extrusion plates 6 are connected by a second fuse block 8, both sides of the battery box body 3 are provided with a first installation groove 9, and the inside of the first installation groove 9 is close to the closed cover body 4. A second mounting groove 10 is reserved on one side near the closed cover body 4, the connecting rod 5 and the closed cover body 4 are made as one piece, and the connecting rod 5 and the extrusion plate 6 form a sliding structure, the connecting rod 5 is located inside the slide groove on the extrusion plate 6 near the second fuse block 8, so that the extrusion plate 6 can only slide in the direction close to the middle relative to the corresponding connecting rod 5, the second fuse block 8 is completely covered on the outside of the first fuse block 7, and the melting point of the second fuse block 8 is lower than the melting point of the first fuse block 7, so that the second fuse block 8 can be melted before the first fuse block 7, and there is a melting time difference between the second fuse block 8 and the first fuse block 7;

[0026] like Figure 2 and Figure 3 As shown, the limiting mechanism includes a limiting support block 11, which runs through the first mounting groove 9 on one side close to the closed cover body 4, and extends to the inside of the limiting groove 2 and the battery box body 3. An extrusion block 12 is installed on the side of the limiting support block 11 close to the closed cover body 4, and a guide mounting plate 13 is installed on the outer wall of the limiting support block 11. A first spring 14 is connected between the guide mounting plate 13 and the battery box body 3, and an extrusion rod 15 is installed on the top of the guide mounting plate 13 close to the closed cover body 4. The cross-sectional shape of the extrusion block 12 is a trapezoid. The extrusion block 12 and the limiting support block 11 are made in one piece. During installation, the extrusion plate 6 can drive the limiting support block 11 to be inserted into the limiting groove 2 by extruding the hypotenuse of the extrusion block 12, thereby completing the fixation of the battery box body 3 and the vehicle body 1. The limiting support block 11 and the guide mounting plate 13 independently provide support force for the battery box body 3 without the participation of the second fuse block 8. When the second fuse block 8 and the first fuse block 7 are blown, the first spring 14 will drive the limiting support block 11 to leave the corresponding limiting groove 2, so that the battery box body 3 can fall off the vehicle body 1. Example 2

[0027] like Figure 2 and Figure 3As shown, a squeeze button 16 is arranged inside the second installation groove 10, and a second spring 17 is connected between the squeeze button 16 and the battery box body 3, a connecting wire 18 is connected to the top of the squeeze button 16, and the connecting wire 18 runs through the battery box body 3, and an alarm 19 is connected to the end of the connecting wire 18 away from the squeeze button 16, and the alarm 19 is installed in the cab through the connecting wire 18, and the alarm 19 and the squeeze button 16 are powered by independent button batteries. When the second fuse block 8 is blown and the first fuse block 7 has no solubility, the limit support block 11 can move in a direction close to the middle and the general stroke does not completely leave the inside of the limit groove 2. At this time, the squeeze rod 15 can press the squeeze button 16, so that the alarm 19 sends an alarm to the driver, giving the driver time for emergency handling, the pressing elasticity of the squeeze button 16 is less than the elasticity of the second spring 17, and the elasticity of the second spring 17 is less than the elasticity of the first spring 14, so that the limit support block 11 can complete the task of pressing the squeeze button 16; Example 3

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, air discharge pipes 20 are installed through the bottom of both sides of the battery box body 3, and air inlet holes 21 are evenly opened at the top and bottom of the air discharge pipe 20, and closing plates 22 are installed on both sides of the top of the air discharge pipe 20, and the closing plate 22 extends to the inside of the first mounting groove 9, and a third spring 23 is connected between the closing plate 22 and the battery box body 3. The top of the closing plate 22 is arc-shaped, and the closing plate 22 forms a sliding structure with the battery box body 3 and the air discharge pipe 20 respectively, so that when the limiting support block 11 is located at a position where the battery box body 3 is fully limited and fixed, the closing plate 22 can be It is pressed inside the airflow exhaust pipe 20 so that the airflow exhaust pipe 20 is not connected to the outside world, thereby ensuring the sealing of the battery box body 3. When the second fuse block 8 blows and the limit support block 11 moves half of the stroke toward the middle, the pressure on the closing plate 22 can be released, and the third spring 23 drives the closing plate 22 to move upward for a distance to release the seal of the airflow exhaust pipe 20. At this time, the high-pressure and high-temperature gas generated in the battery box body 3 drives the smoke into the airflow exhaust pipe 20 from the airflow inlet hole 21, and is further discharged from the bottom of the vehicle through the airflow exhaust pipe 20, thereby preventing the smoke from breaking through the seal above and flowing into the interior of the vehicle body to cause harm to personnel.

[0029] The working principle of the utility model is as follows: the battery pack is connected to the vehicle through an extension wire. During installation, the battery pack is respectively installed at the two ends of the airflow exhaust pipe 20 in the battery box body 3, the alarm 19 is installed in the cab, and the battery box body 3 is inserted into the inner side of the vehicle body 1. In the initial state, the first spring 14 drives the limit support block 11 to be completely located inside the first spring 14, so that the battery box body 3 can be inserted into the inner side of the vehicle body 1 at this time, and the closed cover body 4 is squeezed and installed on the battery box body 3. At this time, the connecting rod 5 is located in the slide groove on the extrusion plate 6 on the side close to the second fuse block 8. The extrusion plate 6 cannot move laterally relative to the connecting rod 5, so that during the installation process, the extrusion plate 6 can be squeezed with the beveled portion of the corresponding extrusion block 12, so that the limiting support block 11 is inserted into the corresponding limiting groove 2, so that the battery box body 3 and the vehicle body 1 are fixed together, and the limiting support block 11 and the guide installation plate 13 provide a supporting force for the battery box body 3 without the participation of the second fuse block 8, thereby preventing the second fuse block 8 from being damaged. At the same time, the guide installation plate 13 squeezes the arc surface of the closing plate 22 so that the closing plate 22 moves downward to close the airflow discharge pipe 20;

[0030] When the vehicle encounters an extreme situation during use, when the battery pack is overheated and produces smoke and there is a risk of combustion, the second fuse block 8 is first melted, and the first spring 14 drives the limit support block 11 and squeezes the squeeze plate 6 to move toward the middle direction until the first fuse block 7 that has not been melted is abutted together. At this time, the limit support block 11 moves half of the stroke toward the middle direction and releases the pressure on the closing plate 22. The third spring 23 then drives the closing plate 22 to move upward to release the sealing of the airflow exhaust pipe 20, and the high-pressure gas and smoke in the battery box body 3 are discharged from the bottom of the vehicle through the airflow exhaust pipe 20;

[0031] When the guide mounting plate 13 moves the above-mentioned half stroke, the squeezing rod 15 squeezes and presses the squeezing button 16 at the same time, so that the alarm 19 then issues an alarm to the driver. At this time, if the driver is in a safe position, the driver should turn off the vehicle and get off in time. Subsequently, if the battery further burns and the first fuse block 7 is melted, the first spring 14 will drive the limiting support block 11 to completely leave the corresponding limiting groove 2. At the same time, the squeezing rod 15 can further squeeze the squeezing button 16 into the second mounting groove 10 without affecting the movement of the limiting support block 11. The battery box body 3 is then completely separated from the vehicle body 1, reducing subsequent damage to the vehicle. If it is located on a highway or a troubled area, the driver can use the vehicle inertia to adjust the direction to a safe driving area such as an emergency lane away from the place. In this process, when the first fuse block 7 is melted and the battery box body 3 falls, the vehicle can completely leave the top of the battery box body 3 under the action of inertia, thereby protecting the safety of the vehicle and the driver. At the same time, the battery box body 3 is taken away from the highway or the troubled area, further reducing possible damage.

[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A battery box structure for preventing batteries from burning in a vehicle compartment, comprising a vehicle body (1), wherein both sides of the inner wall of the vehicle body (1) are provided with limiting grooves (2), characterized in that: A battery box body (3) is arranged on the inner side of the vehicle body (1), and a closed cover body (4) is installed on the top of the battery box body (3), connecting rods (5) are installed on both sides of the bottom of the closed cover body (4), and an extrusion plate (6) is sleeved on the outer wall of the connecting rod (5), a first fuse block (7) is installed on the side of the extrusion plate (6) close to the closed cover body (4), and two groups of the extrusion plates (6) are connected by a second fuse block (8), and first installation grooves (9) are opened on both sides of the battery box body (3), and a second installation groove (10) is reserved inside the first installation groove (9) on the side close to the closed cover body (4); A limiting mechanism for fixing the battery box body (3) is provided in the first installation groove (9).

2. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 1, characterized in that: The connecting rod (5) and the closed cover body (4) are manufactured in an integrated manner, and the connecting rod (5) and the extrusion plate (6) form a sliding structure.

3. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 1, characterized in that: The limiting mechanism comprises a limiting support block (11), the limiting support block (11) passes through a side of the first mounting groove (9) close to the closed cover body (4), and the limiting support block (11) extends to the inside of the limiting groove (2) and the battery box body (3), an extrusion block (12) is installed on the side of the limiting support block (11) close to the closed cover body (4), and a guide mounting plate (13) is installed on the outer wall of the limiting support block (11), a first spring (14) is connected between the guide mounting plate (13) and the battery box body (3), and an extrusion rod (15) is installed on the top of the side of the guide mounting plate (13) close to the closed cover body (4).

4. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 3, characterized in that: The cross-sectional shape of the extrusion block (12) is a trapezoid, and the extrusion block (12) and the limiting support block (11) are manufactured in one piece.

5. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 1, characterized in that: The bottom of both sides of the battery box body (3) is penetrated by an airflow discharge pipe (20), and the top and bottom of the airflow discharge pipe (20) are evenly provided with airflow inlet holes (21). Both sides of the top of the airflow discharge pipe (20) are penetrated by a closing plate (22), and the closing plate (22) extends to the inside of the first installation groove (9). A third spring (23) is connected between the closing plate (22) and the battery box body (3).

6. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 5, characterized in that: The top of the closing plate (22) is arc-shaped, and the closing plate (22) forms a sliding structure with the battery box body (3) and the airflow exhaust pipe (20) respectively.

7. A battery box structure for preventing batteries from burning in a vehicle compartment according to claim 1, characterized in that: A squeeze button (16) is arranged inside the second mounting groove (10), and a second spring (17) is connected between the squeeze button (16) and the battery box body (3); a connecting wire (18) is connected to the top of the squeeze button (16), and the connecting wire (18) passes through the battery box body (3); and an alarm (19) is connected to one end of the connecting wire (18) away from the squeeze button (16).

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