New energy battery pack safety protection device

Abstract

The utility model relates to the related field of battery pack protection devices, in particular to a new energy battery pack safety protection device which comprises a connecting beam, a mounting frame, a battery pack and a protection device, according to the utility model, through the protection device and the energy absorption structure in the protection device, when impact comes, the impact is firstly transmitted to the connecting rod, and then the impact is transmitted to the gland through the connecting rod, so that the gland downwards extrudes the spring, the spring deforms to absorb energy, the received impact is absorbed, and the damage to the battery pack caused by collision is reduced; according to the battery pack, collision impact can be buffered firstly, and the energy absorption structure is matched, so that the safety of the battery pack can be greatly improved, and damage to the battery pack due to collision at the front end is reduced; and by arranging the mounting plates mounted at the front end of the battery pack in an array, the device can be better fixed at the front end of the battery pack, the situation that the device falls off due to impact is prevented, the stability and the safety are improved, and the safety of the battery pack is better.

Description

Technical Field

[0001] The utility model relates to the field related to battery pack protection devices, and in particular to a new energy battery pack safety protection device. Background Art

[0002] With the development of the times, the world pays more and more attention to environmental protection. In order to protect the environment, my country has begun to vigorously promote the development of new energy vehicles. New energy vehicles have many advantages such as environmental protection, high energy efficiency, resource sustainability, reduced noise pollution, economic benefits and technological innovation. New energy vehicles use unconventional automotive fuels as a power source, including new energy battery packs, which are representatives of low carbon, environmental protection and energy saving. Because the battery pack is fragile, a protective device is generally provided on the battery pack.

[0003] The problems with the existing technology are as follows: Due to the body structure problem, the battery packs of some new energy vehicles are exposed under the chassis. The protection measure is to install chassis armor under the battery pack. This protection method can only effectively protect the bottom of the battery, and has little effect on protecting against bumps when the car is driving forward. It is impossible to fully protect the battery pack, which has some disadvantages.

[0004] To this end, we propose a new energy battery pack safety protection device to solve the above problems. Utility Model Content

[0005] The utility model provides a new energy battery pack safety protection device to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new energy battery pack safety protection device, including a connecting beam and a protection device, the left and right ends of the bottom of the connecting beam are provided with mounting frames, and the battery pack is installed on the mounting frames; the protection device is arranged at the front end of the battery pack, and the protection device includes a mounting plate, an energy absorption box, a connecting plate, a limit plate, a buffer plate and an energy absorption structure, the back of the mounting plate is connected to the front end of the battery pack, the front end of the mounting plate is fixedly connected with the energy absorption box, the top of the energy absorption box is installed with a limit plate, and the front end of the energy absorption box is embedded with a connecting plate, and the front end of the connecting plate is fixedly connected to the back of the buffer plate, the energy absorption structure is placed inside the energy absorption box, and the front end is connected to the back of the connecting plate.

[0007] Preferably, the energy absorption structure includes a pressure cover, a spring, a connecting rod, a connecting head and a base. The outer ring of the bottom of the pressure cover is connected to the spring, the bottom of the spring is installed on the outer ring of the top of the base, the bottom of the base is installed on the inner wall of the energy absorption box, the connecting rod passes through one end of the pressure cover and is connected to the middle part of the top of the base, and the other end is installed with a connecting head, and the front end of the connecting head is connected to the back of the connecting plate.

[0008] Preferably, at least two energy absorbing structures are provided, and a transverse array is installed in the energy absorbing box.

[0009] Preferably, the spring is distributed on the periphery of the connecting rod in a spiral shape.

[0010] Preferably, the connecting rod is a cylindrical structure.

[0011] Preferably, at least two mounting plates are provided, and the array is installed at the front end of the battery pack.

[0012] Preferably, the limit plate is installed at the top of the energy absorption box at an upward inclination angle.

[0013] Preferably, the buffer plate is designed as an arc-shaped structure.

[0014] Beneficial effects of the utility model:

[0015] The utility model uses a protective device and an energy absorbing structure therein. When an impact comes, the impact is first transmitted to the connecting rod, and then the connecting rod transmits the impact to the pressure cover, so that the pressure cover presses the spring downward, and the spring deforms and absorbs energy to absorb the impact, thereby reducing the damage to the battery pack caused by bumps. The buffer plate is designed with an arc structure, so that the impact of the bump can be buffered first. With the energy absorbing structure, the safety of the battery pack can be greatly improved, and the damage to the battery pack caused by front-end bumps can be reduced.

[0016] The utility model provides a mounting plate with an array mounted on the front end of the battery pack, so that the device can be better fixed to the front end of the battery pack to prevent the device from falling off due to impact, thereby increasing stability and safety and improving the safety of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the protection device of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the cross section of the protection device of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure inside the energy absorption box of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the energy absorption structure of the utility model.

[0022] Among them: connecting beam-1, mounting frame-2, battery pack-3, protection device-4, mounting plate-41, energy absorption box-42, connecting plate-43, limiting plate-44, buffer plate-45, energy absorption structure-46, pressure cover-461, spring-462, connecting rod-463, connecting head-464, base-465. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] As shown in the figure, the utility model provides a new energy battery pack safety protection device, including a connecting beam 1, which is used to install a battery pack 3 in a frame, and mounting frames 2 are provided at the left and right ends of the bottom of the connecting beam 1 to fix the battery pack. The battery pack 3 is installed on the mounting frame 2, and the battery pack 3 is used to provide a power source for the vehicle.

[0025] As shown in the figure, the protection device 4 of the utility model is used to protect the safety of the bottom battery pack 3 when the vehicle is driving forward. The protection device 4 is arranged at the front end of the battery pack 3. The protection device 4 includes a mounting plate 41, an energy absorption box 42, a connecting plate 43, a limiting plate 44, a buffer plate 45 and an energy absorption structure 46. The back of the mounting plate 41 is connected to the front end of the battery pack 3. The mounting plate 41 is used for installation and connection. The front end of the mounting plate 41 is fixedly connected with an energy absorption box 42. The energy absorption box 42 is used to buffer the impact of the battery pack 3 at the bottom of the car when it collides, and protect the safety of the battery pack 3. A limiting plate 44 is installed on the top of the energy absorption box 42 for blocking. The energy absorbing box 42 is provided with a connecting plate 43 embedded in the front end thereof for installation and connection, and is also used to transmit the impact to the energy absorbing structure 46 for buffering. The front end of the connecting plate 43 is fixedly connected to the back of the buffer plate 45, and the buffer plate is used to absorb the first wave of impact and cooperate with the energy absorbing structure 46 to protect the battery pack 3. The energy absorbing structure 46 is placed inside the energy absorbing box 42, and the front end is connected to the back of the connecting plate 43, and is used to cooperate with the buffer plate 45 to reduce the damage to the battery pack caused by the front end collision, thereby greatly improving the safety of the battery pack 3.

[0026] In this embodiment, three mounting plates 41 are provided, and the array is installed at the front end of the battery pack 3. The provision of three mounting plates can achieve a better connection effect and prevent the device from falling off due to impact.

[0027] The limit plate 44 is installed at the top of the energy absorption box 42 at an upward tilt angle. The upward tilt angle installation can better catch obstacles higher than the battery pack 3, further protecting the safety of the battery pack 3;

[0028] The buffer plate 45 is designed as an arc-shaped structure, which has better shock absorption properties and can absorb shock more completely, thereby reducing the shock on the battery pack 3 .

[0029] As shown in the figure, the energy absorption structure 46 of the utility model includes a pressure cover 461, a spring 462, a connecting rod 463, a connecting head 464 and a base 465. The outer ring at the bottom of the pressure cover 461 is connected with a spring 462. The pressure cover 461 is used for installation and connection, and is also used to press the spring 462 to absorb energy. The bottom of the spring 462 is installed on the outer ring at the top of the base 465. The bottom of the base 465 is installed on the inner wall of the energy absorption box 42. The base 465 is used for support and connection. The connecting rod 463 passes through one end of the pressure cover 461 and is connected to the middle of the top of the base. The connecting rod 463 is used to transmit impact and drive the pressure cover 461 to squeeze the spring 462 downward. The other end is installed with a connecting head 464 for installation and connection, and is also used to transmit impact. The front end of the connecting head 464 is connected to the back of the connecting plate 43.

[0030] In this embodiment, three energy absorbing structures 46 are provided, and are installed in a transverse array in the energy absorbing box 42. The provision of three energy absorbing structures 46 can better absorb impact and provide better protection for the battery pack 3.

[0031] The spring 462 is distributed in a spiral shape around the connecting rod 463 , and the connecting rod 463 is a cylindrical structure. The cylindrical structure design can be better installed, and can better transmit the impact and drive the pressure cover 461 to squeeze the spring 462 downward.

[0032] Working principle:

[0033] The battery pack 3 is installed in the vehicle frame through the connecting beam 1 and the mounting frame 2. The battery pack 3 is used to provide a power source for the vehicle. The energy absorbing structure 46 is installed at the front end of the battery pack 3. When the battery pack 3 is about to hit an obstacle, the energy absorbing structure 46 will absorb the impact to protect the safety of the battery pack 3 at the bottom when the vehicle is driving forward.

[0034] The energy absorption structure 46 includes a mounting plate 41, through which the entire device is mounted at the front end of the battery pack 3. When an impact occurs, the impact first enters the buffer plate 45 for buffering and energy absorption, and the remaining impact is transmitted to the energy absorption structure 46 inside the energy absorption box 42 through the connecting plate 43 to further absorb the impact and protect the safety of the battery pack 3. The limit plate 44 is installed at an upward inclination angle to clamp obstacles higher than the battery pack 3, further protecting the safety of the battery pack 3.

[0035] The energy absorbing structure 46 includes a base 465 for connection and installation. When an impact occurs, the connector 464 will transmit the impact to the connecting rod 463, so that the connecting rod 463 drives the pressure cover 461 to press the spring 462 downward, so that the spring 462 is compressed to absorb energy, thereby absorbing the impact and protecting the safety of the battery pack 3.

[0036] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new energy battery pack safety protection device, comprising a connecting beam (1), a mounting frame (2) being arranged at the left and right ends of the bottom of the connecting beam (1), and a battery pack (3) being mounted on the mounting frame (2); Features: The invention also comprises a protection device (4), which is arranged at the front end of the battery pack (3), and comprises a mounting plate (41), an energy absorption box (42), a connecting plate (43), a limiting plate (44), a buffer plate (45) and an energy absorption structure (46). The back of the mounting plate (41) is connected to the front end of the battery pack (3), the front end of the mounting plate (41) is fixedly connected to the energy absorption box (42), the top end of the energy absorption box (42) is equipped with a limiting plate (44), the front end of the energy absorption box (42) is embedded with a connecting plate (43), the front end of the connecting plate (43) is fixedly connected to the back of the buffer plate (45), and the energy absorption structure (46) is placed inside the energy absorption box (42), and the front end is connected to the back of the connecting plate (43).

2. A new energy battery pack safety protection device according to claim 1, characterized in that: The energy absorption structure (46) includes a pressure cover (461), a spring (462), a connecting rod (463), a connecting head (464) and a base (465). The outer ring at the bottom of the pressure cover (461) is connected to the spring (462). The bottom of the spring (462) is installed on the outer ring at the top of the base (465). The bottom of the base (465) is installed on the inner wall of the energy absorption box (42). One end of the connecting rod (463) passes through the pressure cover (461) and is connected to the middle of the top of the base. The other end is installed with a connecting head (464). The front end of the connecting head (464) is connected to the back of the connecting plate (43).

3. A new energy battery pack safety protection device according to claim 2, characterized in that: No less than two energy absorbing structures (46) are provided, and are installed in a transverse array in the energy absorbing box (42).

4. A new energy battery pack safety protection device according to claim 2, characterized in that: The spring (462) is distributed in a spiral shape around the periphery of the connecting rod (463).

5. A new energy battery pack safety protection device according to claim 4, characterized in that: The connecting rod (463) is a cylindrical structure.

6. A new energy battery pack safety protection device according to claim 1, characterized in that: No less than two mounting plates (41) are provided, and an array is mounted at the front end of the battery pack (3).

7. A new energy battery pack safety protection device according to claim 1, characterized in that: The limiting plate (44) is installed at an upward inclination angle on the top of the energy absorption box (42).

8. A new energy battery pack safety protection device according to claim 1, characterized in that: The buffer plate (45) is designed as an arc-shaped structure.

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