Vehicle-mounted battery protection device and automobile

Abstract

The utility model discloses a vehicle-mounted battery protection device and car with it. Vehicle-mounted battery protection device includes casing assembly, first elastic support mechanism and second elastic support mechanism, and casing assembly includes first casing and second casing, and first elastic support mechanism sets up inside the first accommodating cavity of first casing, and second elastic support mechanism sets up inside the second accommodating cavity of second casing, through adopting above -mentioned structure, make first elastic support mechanism and second elastic support mechanism cooperation support battery and make battery inside protection cavity be in the suspension state of being able to float up and down, and casing assembly can prevent extraneous matter collision or extrude battery, and when the vibration of outside is passed to casing group assembly, the first elastic support mechanism and second elastic support mechanism in casing assembly interior can absorb and filter the vibration, greatly have weakened the vibration that passes to battery, and then make battery can keep the relatively stable state under various working conditions.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an on-board battery protection device and a car having the same. Background Technology

[0002] Currently, with the rapid development of the new energy vehicle industry, the safety of new energy vehicles is receiving increasing attention. Among these, the vehicle battery, as the core power source, is of paramount importance for its stable operation and safety protection. Existing new energy vehicles generally have the vehicle battery fixedly mounted on the chassis, which is equipped with a protective plate to effectively isolate the battery from impacts by external objects.

[0003] However, during driving, vehicles inevitably encounter various complex driving situations, such as driving on bumpy roads, rapid acceleration, or sudden braking. These situations will cause multi-directional impacts and vibrations on the vehicle battery, which will affect the battery's performance and lifespan. Utility Model Content

[0004] This invention aims to at least partially solve one of the problems of the prior art. To this end, the first aspect of this invention proposes an on-board battery protection device, which helps reduce vibration or impact on the on-board battery during vehicle operation, making the on-board battery more stable; the second aspect of this invention proposes a car using the aforementioned on-board battery protection device, which helps the car's on-board battery maintain a relatively stable state under various operating conditions.

[0005] According to a first aspect of the present invention, a vehicle battery protection device includes a housing assembly, a first elastic support mechanism, and a second elastic support mechanism. The housing assembly includes a first housing and a second housing. The first housing has a first receiving cavity with an upper opening, and the second housing has a second receiving cavity with a lower opening. The second housing is disposed on the upper part of the first housing. The first receiving cavity and the second receiving cavity can be joined together to form a protective cavity. The first elastic support mechanism includes a first connecting plate and one or more first elastic support components. The first elastic support components are located inside the first receiving cavity, and the lower end of the first elastic support component is connected to or abuts against the first housing. The first connecting plate is connected to or abuts against the upper end of the first elastic support component. The second elastic support mechanism includes a second connecting plate and one or more second elastic support components. The second elastic support components are located inside the second receiving cavity, and the upper end of the second elastic support component is connected to or abuts against the second housing. The second connecting plate is connected to or abuts against the lower end of the second elastic support component. The first connecting plate and the second connecting plate are used to cooperate in supporting or installing a battery.

[0006] The vehicle battery protection device according to this utility model has the following beneficial effects: By configuring the housing assembly as a combination of a first housing and a second housing, the first housing has an upper open first receiving cavity, inside which a first elastic support mechanism composed of a first connecting plate and a first elastic support component is provided. The second housing has a lower open second receiving cavity, inside which a second elastic support mechanism composed of a second connecting plate and a second elastic support component is provided. Therefore, when the vehicle battery protection device of this embodiment is used to protect the vehicle battery, the battery is placed between the first and second connecting plates, with the lower and upper parts of the battery correspondingly connected to the first and second connecting plates. At this time, the first and second elastic support mechanisms cooperate to support the battery, allowing the battery to be in a suspended state that can float up and down inside the protection cavity. The housing assembly can prevent external objects from colliding with or squeezing the battery. Moreover, when external vibrations are transmitted to the housing assembly, the first and second elastic support components inside the housing assembly can absorb and filter the vibrations, greatly reducing the vibrations transmitted to the battery. This makes the vibrations or impacts on the battery smaller, helping the battery to maintain a relatively stable state under various operating conditions, ensuring the normal operation and service life of the battery.

[0007] In some embodiments, the first elastic support assembly includes a first fixed base, a first damper, a first elastic element, a first movable base, and a first transmission element. The first fixed base is fixedly disposed inside the first receiving cavity. One end of the first damper is connected to the first fixed base. The first movable base is disposed at the other end of the first damper. One end of the first transmission element is rotatably connected to the first movable base. The other end of the first transmission element is rotatably connected to the first connecting plate. One end of the first elastic element is connected to or abuts against the first movable base. The other end of the first elastic element is connected to or abuts against the first fixed base.

[0008] In some embodiments, a first rotating connecting seat is provided on the side surface of the first connecting plate away from the second connecting plate, and there are two sets of the first elastic support components, which are symmetrically arranged on both sides of the first rotating connecting seat; the ends of the two first transmission members away from the first moving seat are rotatably connected to the first rotating connecting seat.

[0009] In some embodiments, the first elastic support mechanism includes one or more first elastic damping components disposed inside the first receiving cavity. One end of the first elastic damping component is connected to or abuts against the first housing, and the other end of the first elastic damping component is connected to or abuts against the side surface of the first connecting plate away from the second connecting plate.

[0010] In some embodiments, the first elastic damping assembly includes two first positioning blocks and a first spring, wherein one of the first positioning blocks is fixedly disposed on the inner wall of the first receiving cavity, and the other first positioning block is fixedly disposed on the side surface of the first connecting plate away from the second connecting plate, and the two ends of the first spring are respectively sleeved on the outer periphery of the two first positioning blocks.

[0011] In some embodiments, the second elastic support assembly includes a second fixed base, a second damper, a second elastic element, a second movable base, and a second transmission element. The second fixed base is fixedly disposed inside the second receiving cavity. One end of the second damper is connected to the second fixed base, and the second movable base is disposed at the other end of the second damper. One end of the second transmission element is rotatably connected to the second movable base, and the other end of the second transmission element is rotatably connected to the second connecting plate. One end of the second elastic element is connected to or abuts against the second movable base, and the other end of the second elastic element is connected to or abuts against the second fixed base.

[0012] In some embodiments, a second rotating connecting seat is provided on the side surface of the second connecting plate away from the first connecting plate, and there are two sets of the second elastic support components, which are symmetrically arranged on both sides of the second rotating connecting seat; the ends of the two second transmission members away from the second moving seat are rotatably connected to the second rotating connecting seat.

[0013] In some embodiments, the second elastic support mechanism includes one or more second elastic damping components disposed inside the second receiving cavity. One end of the second elastic damping component is connected to or abuts against the second housing, and the other end of the second elastic damping component is connected to or abuts against the surface of the second connecting plate away from the first connecting plate.

[0014] In some embodiments, a first buffer pad is provided on the surface of the first connecting plate facing the second connecting plate, and a second buffer pad is provided on the surface of the second housing facing the first connecting plate.

[0015] According to a second aspect of the present invention, a car includes a car body, the car body being equipped with the aforementioned on-board battery protection device.

[0016] The automobile according to this utility model has the following beneficial effects: By employing the aforementioned vehicle battery protection device, the car battery can be placed inside the housing assembly, with the lower and upper parts of the battery correspondingly connected to the first and second connecting plates. At this time, the first and second elastic support mechanisms work together to support the battery, allowing it to float vertically within the protection cavity. When vibrations generated during vehicle operation are transmitted to the housing assembly, the first and second elastic support components inside the housing assembly can absorb and filter the vibrations, greatly reducing the vibrations transmitted to the battery. This ensures that the battery maintains a relatively stable state under various operating conditions, guaranteeing the normal operation and lifespan of the battery, thereby improving the reliability of vehicle operation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a vehicle battery protection device according to certain embodiments of the present invention; Figure 2 yes Figure 1 The diagram shows an exploded view of the vehicle battery protection device when the first housing, battery, and second housing are separated. Figure 3 yes Figure 1 The diagram shows an exploded view of the structure of the vehicle battery protection device when the first housing, the first elastic support mechanism, the battery, the second elastic support mechanism, and the second housing are in a separated state. Figure 4 yes Figure 1 The image shows a cross-sectional view of the internal structure of the vehicle battery protection device. Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 yes Figure 4 Enlarged diagram of point B in the middle. Detailed Implementation

[0018] The embodiments of this implementation are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this implementation, and should not be construed as limiting this implementation.

[0019] The accompanying drawings used in this embodiment are schematic and principle-based, and are only for the purpose of facilitating and simplifying the description of this embodiment. Therefore, they should not be construed as limiting this embodiment.

[0020] In the description of this embodiment, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this embodiment, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this embodiment in conjunction with the specific content of the technical solution.

[0022] Figures 1 to 6 This is a schematic diagram of one embodiment of the vehicle battery protection device of this utility model.

[0023] Reference Figures 1 to 6 The on-board battery protection device according to this embodiment (which will sometimes be referred to as "protection device" for ease of explanation) is used to protect the power battery of new energy vehicles.

[0024] Reference Figures 1 to 6 The vehicle battery protection device according to certain embodiments of the first aspect of this utility model includes a housing assembly 100, a first elastic support mechanism 200, and a second elastic support mechanism 300. In this embodiment, the housing assembly 100 includes a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 are generally in the shape of a flat cuboid. Therefore, the housing assembly 100 formed by splicing the first housing 110 and the second housing 120 is also in the shape of a flat cuboid. The first housing 110 has a first receiving cavity 111 with an open upper part, and the second housing 120 has a second receiving cavity 121 with an open lower part. The second housing 120 is disposed above the first housing 110. The first receiving cavity 111 and the second receiving cavity 121 can be spliced ​​together to form a protective cavity. The first elastic support mechanism 200 is disposed inside the protective cavity. The first elastic support mechanism 200 includes a first connecting plate 210 and a first elastic support assembly. The first elastic support assembly is located inside the first receiving cavity 111, and the lower end of the first elastic support assembly is connected to or abuts against the first housing 110. The first connecting plate 210 is connected to or abuts against the upper end of the first elastic support assembly. The second elastic support mechanism 300 includes a second connecting plate 310 and a second elastic support assembly. The second elastic support assembly is located inside the second receiving cavity 121, and the upper end of the second elastic support assembly is connected to or abuts against the second housing 120. The second connecting plate 310 is connected to or abuts against the lower end of the second elastic support assembly. The first connecting plate 210 and the second connecting plate 310 are used to support or install the battery 400.

[0025] In this embodiment, the vehicle battery protection device is configured such that the housing assembly 100 is formed by splicing a first housing 110 and a second housing 120. The first housing 110 has a first receiving cavity 111 with an upper opening, and a first elastic support mechanism 200 composed of a first connecting plate 210 and a first elastic support assembly is disposed inside the first receiving cavity 111. The second housing 120 has a second receiving cavity 121 with a lower opening, and a second elastic support mechanism 300 composed of a second connecting plate 310 and a second elastic support assembly is disposed inside the second receiving cavity 121. Therefore, when the vehicle battery protection device of this embodiment is used to protect the vehicle battery, the battery 400 is placed between the first connecting plate 210 and the second connecting plate 310, and the lower part of the battery 400 and the first connecting plate 210 are connected. The upper part of the battery 400 is connected to the second connecting plate 310 via the connecting plate 210. At this time, the first elastic support mechanism 200 and the second elastic support mechanism 300 cooperate to support the battery 400 and make the battery 400 float up and down inside the protective cavity. The housing assembly 100 can prevent foreign objects from colliding with or squeezing the battery 400. Moreover, when external vibrations are transmitted to the housing assembly 100, the first elastic support component and the second elastic support component inside the housing assembly 100 can absorb and filter the vibrations, which greatly weakens the vibrations transmitted to the battery 400. This makes the vibrations or impacts on the battery 400 smaller, which helps the battery 400 maintain a relatively stable state under various working conditions, ensuring the normal operation and service life of the battery 400.

[0026] It should be noted that in the above embodiments, the first elastic support mechanism 200 adopts a structure composed of a first connecting plate 210 and a set of first elastic support components, and the second elastic support mechanism 300 adopts a structure composed of a second connecting plate 310 and a set of second elastic support components. In some embodiments of this utility model, the first elastic support mechanism 200 and the second elastic support mechanism 300 may also adopt other structures, such as the first elastic support mechanism 200 including a first connecting plate 210 and multiple sets of first elastic support components, and the second elastic support mechanism 300 including a second connecting plate 310 and multiple sets of second elastic support components. All the first elastic support components are arranged at intervals inside the first receiving cavity 111, and the lower ends of all the first elastic support components are connected to or abut against the first housing 110, and the first connecting plate 210 is connected to or abuts against the upper ends of all the first elastic support components; all the second elastic support components are located inside the second receiving cavity 121, and the upper ends of all the second elastic support components are connected to or abut against the second housing 120, and the second connecting plate 310 is connected to or abuts against the lower ends of all the second elastic support components. By adopting the above structure, the first elastic support mechanism 200 and the second elastic support mechanism 300 can better absorb and filter vibrations, so that when the vehicle battery protection device of this embodiment protects the battery 400, the battery 400 is subjected to less impact and vibration.

[0027] Reference Figure 3 , Figure 4 and Figure 5To simplify the structure of the first elastic support mechanism 200 of this utility model, in some embodiments, the first elastic support assembly includes a first fixed base 220, a first damper 221, a first elastic element 222, a first movable base 223, and a first transmission element 224. The first fixed base 220 is fixedly disposed inside the first receiving cavity 111. One end of the first damper 221 is connected to the first fixed base 220, and the first movable base 223 is disposed at the other end of the first damper 221, i.e., the first movable base 223 is disposed at the end of the first damper 221 away from the first fixed base 220. One end of the first transmission element 224 is rotatably connected to the first movable base 223, and the other end of the first transmission element 224 is rotatably connected to the first connecting plate 210. One end of the first elastic element 222 is connected to or abuts against the first movable base 223, and the other end of the first elastic element 222 is connected to or abuts against the first fixed base 220. In this embodiment, the first elastic element 222 is a spring capable of stretching or shortening. The first elastic element 222 is movably sleeved on the outer periphery of the first damper 221. One end of the first elastic element 222 abuts against the first movable seat 223, and the other end abuts against the first fixed seat 220. By adopting the above structure, the structure of the first elastic support mechanism 200 can be made simpler and more compact. Furthermore, when the housing assembly 100 is subjected to external impact or vibration, the first elastic element 222 acts as a buffer to absorb energy, while the first damper 221 acts to dampen vibration. Through the synergistic effect of the first elastic element 222 and the first damper 221, the first elastic support mechanism 200 of this embodiment can quickly absorb impact energy and effectively dampen vibration, thereby making the battery 400 supported by the first elastic support mechanism 200 more stable.

[0028] In some embodiments of this utility model, a first rotating connecting seat 225 is provided on the surface of the first connecting plate 210 away from the second connecting plate 310. Two sets of first elastic support components are symmetrically arranged on both sides of the first rotating connecting seat 225. The ends of the two first transmission members 224 of each set of first elastic support components away from the first moving seat 223 are rotatably connected to the first rotating connecting seat 225. By adopting the above structure, the two sets of first elastic support components cooperate in a V-shape to support the first connecting plate 210, thereby allowing the first elastic support mechanism 200 to better float and support the battery 400. Furthermore, by absorbing impact energy and damping vibration through the two sets of first elastic support components, the battery 400 supported by the first elastic support mechanism 200 can maintain a relatively stable state.

[0029] In order for the first elastic support mechanism 200 to offset or weaken impact forces from other directions, in some embodiments of this utility model, the first elastic support mechanism 200 includes a set of first elastic damping components. The first elastic damping components are disposed inside the first receiving cavity 111. One end of the first elastic damping components is connected to or abuts against the first housing 110, and the other end of the first elastic damping components is connected to or abuts against the side surface of the first connecting plate 210 away from the second connecting plate 310. Specifically, the first elastic damping components include two first positioning blocks 230 and a first spring 231. One first positioning block 230 is fixedly disposed on the inner wall of the first receiving cavity 111, and the other first positioning block 230 is fixedly disposed on the side surface of the first connecting plate 210 away from the second connecting plate 310. The two ends of the first spring 231 are correspondingly sleeved on the outer periphery of the two first positioning blocks 230. By adopting the above structure, when the housing assembly 100 is subjected to impact forces from other directions, causing the first connecting plate 210 to cause the battery 400 to shake irregularly, the first spring 231 can exert a reverse constraint force on the first connecting plate 210, suppressing the irregular shaking of the first connecting plate 210, thereby enabling the first elastic support mechanism 200 to support and fix the battery 400 more stably.

[0030] It should be noted that in the above embodiments, the number of the first elastic damping components is one set. However, in other embodiments of this utility model, the number of the first elastic damping components can be set to two or more sets. For example, in some embodiments of this utility model, the number of the first elastic damping components is multiple sets. Multiple sets of the first elastic damping components are arranged at intervals along the outer periphery of the first connecting plate 210 inside the first receiving cavity 111. One end of all the first elastic damping components is connected to the first housing 110, and the other end of all the first elastic damping components is connected to the first connecting plate 210. In this case, multiple sets of the first elastic damping components can work together to suppress the irregular shaking of the first connecting plate 210, resulting in a better vibration damping effect.

[0031] Reference Figure 3 , Figure 4 and Figure 6To simplify the structure of the second elastic support mechanism 300 of this utility model, in some embodiments of this utility model, the second elastic support assembly includes a second fixed seat 320, a second damper 321, a second elastic element 322, a second movable seat 323, and a second transmission element 324. The second fixed seat 320 is fixedly disposed inside the second receiving cavity 121. One end of the second damper 321 is connected to the second fixed seat 320. The second movable seat 323 is disposed at the other end of the second damper 321. One end of the second transmission element 324 is rotatably connected to the second movable seat 323, and the other end of the second transmission element 324 is rotatably connected to the second connecting plate 310. One end of the second elastic element 322 is connected to or abuts against the second movable seat 323, and the other end of the second elastic element 322 is connected to or abuts against the second fixed seat 320. In this embodiment, the second elastic element 322 is a spring capable of stretching or shortening. The second elastic element 322 is movably sleeved on the outer periphery of the second damper 321. One end of the second elastic element 322 abuts against the second movable seat 323, and the other end abuts against the second fixed seat 320. By adopting the above structure, the structure of the second elastic support assembly is simplified, and the structure of the second elastic support mechanism 300 is made compact. When the housing assembly 100 is subjected to external impact or vibration, the second elastic element 322 can buffer and absorb energy, while the second damper 321 can dampen vibration. Through the synergistic effect of the second elastic element 322 and the second damper 321, the second elastic support mechanism 300 in this embodiment can quickly absorb impact energy and effectively dampen vibration, thereby making the battery 400 supported by the second elastic support mechanism 300 more stable.

[0032] In some embodiments of this utility model, a second rotating connecting seat 325 is provided on the surface of the second connecting plate 310 away from the first connecting plate 210. Two sets of second elastic support components are symmetrically arranged on both sides of the second rotating connecting seat 325. The ends of the two second transmission members 324 of each set of second elastic support components away from the second moving seat 323 are rotatably connected to the second rotating connecting seat 325. By adopting the above structure, the two sets of second elastic support components cooperate in a figure-eight shape to support the second connecting plate 310, thereby enabling the second elastic support mechanism 300 to quickly absorb impact energy and effectively dampen vibrations. This allows the second elastic support mechanism 300 to better support the fixed, floating battery 400. Furthermore, by having the two sets of second elastic support components work together to absorb impact energy and dampen vibrations, the battery 400 supported by the second elastic support mechanism 300 can maintain better stability and experience less vibration.

[0033] In order for the second elastic support mechanism 300 to offset or reduce impact forces from different directions, in some embodiments of this utility model, the second elastic support mechanism 300 includes a set of second elastic damping components. The second elastic damping components are disposed inside the second receiving cavity 121. One end of the second elastic damping components is connected to or abuts against the second housing 120, and the other end of the second elastic damping components is connected to or abuts against the surface of the second connecting plate 310 away from the first connecting plate 210. Specifically, the second elastic damping assembly includes two second positioning blocks 330 and a second spring 331. One second positioning block 330 is fixedly disposed on the inner wall of the second receiving cavity 121, and the other second positioning block 330 is fixedly disposed on the side surface of the second connecting plate 310 away from the first connecting plate 210. The two ends of the second spring 331 are correspondingly sleeved on the outer periphery of the two second positioning blocks 330. By adopting the above structure, when the housing assembly 100 is subjected to impact forces from other directions, causing the second connecting plate 310 to cause the battery 400 to shake irregularly, the second spring 331 can generate a reverse constraint force on the second connecting plate 310, suppressing the irregular shaking of the second connecting plate 310, thereby enabling the second elastic support mechanism 300 to support and fix the battery 400 more stably.

[0034] It should be noted that in the above embodiments, the number of second elastic damping components is one set, while in other embodiments of the present invention, the number of second elastic damping components can be set to two or more sets. For example, in some embodiments of the present invention, the number of second elastic damping components is multiple sets, and multiple sets of second elastic damping components are arranged at intervals along the outer periphery of the second connecting plate 310 inside the second receiving cavity 121. The two ends of each set of second elastic damping components are respectively connected to the second housing 120 and the second connecting plate 310 in a one-to-one correspondence. In this case, multiple sets of second elastic damping components can work together to suppress the irregular shaking of the second connecting plate 310, and the vibration damping effect is better.

[0035] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6To better support and secure the battery 400, the first elastic support mechanism 200 and the second elastic support mechanism 300 are provided with a first buffer pad 510 on the surface of the first connecting plate 210 facing the second connecting plate 310, and a second buffer pad 520 is provided on the surface of the second housing 120 facing the first connecting plate 210. In this embodiment, the first buffer pad 510 and the second buffer pad 520 are composite plates made of carbon fiber reinforced epoxy resin composite material. Therefore, when the battery 400 is placed between the first elastic support mechanism 200 and the second elastic support mechanism 300, one end of the battery 400 is connected to the first buffer pad 510, and the other end of the battery 400 is connected to the second buffer pad 520. By cooperating to support and secure the battery 400, the impact on the battery 400 can be further reduced.

[0036] It should be noted that in the above embodiments, the first buffer pad 510 and the second buffer pad 520 are composite boards made of carbon fiber reinforced epoxy resin composite material. However, in other embodiments of this utility model, the first buffer pad 510 and the second buffer pad 520 can also be made of other materials, such as rubber pads or silicone pads.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In order to facilitate the splicing of the first housing 110 and the second housing 120 to form a housing assembly 100, in some embodiments of this utility model, a first mounting frame 610 is provided on the outer periphery of the first housing 110 near the second housing 120, and a second mounting frame 620 is provided on the outer periphery of the second housing 120 near the first housing 110. The second mounting frame 620 and the first mounting frame 610 are used in pairs. Therefore, when the first housing 110 and the second housing 120 are spliced ​​together to form a housing assembly 100, the worker can use bolts to lock the first mounting frame 610 and the second mounting frame 620 together. The first housing 110 and the second housing 120 can be spliced ​​to form a complete and sturdy housing assembly 100, which can better protect the internal battery 400.

[0038] Reference Figures 1 to 6 The automobile of some embodiments of the second aspect of the present invention includes an automobile body, the automobile body being equipped with the above-described on-board battery protection device.

[0039] Since the automobile adopts all the technical solutions of the on-board battery protection device of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0040] Although embodiments of this implementation have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this implementation, the scope of which is defined by the claims and their equivalents.

Claims

1. An in-vehicle battery protection device characterized by comprising: include: The housing assembly (100) includes a first housing (110) and a second housing (120). The first housing (110) has a first receiving cavity (111) with an upper opening inside, and the second housing (120) has a second receiving cavity (121) with a lower opening inside. The second housing (120) is disposed on the upper part of the first housing (110), and the first receiving cavity (111) and the second receiving cavity (121) can be spliced ​​together to form a protective cavity. The first elastic support mechanism (200) includes a first connecting plate (210) and one or more first elastic support components. The first elastic support components are located inside the first receiving cavity (111), and the lower end of the first elastic support components is connected to or abuts against the first housing (110). The first connecting plate (210) is connected to or abuts against the upper end of the first elastic support components. The second elastic support mechanism (300) includes a second connecting plate (310) and one or more second elastic support components. The second elastic support components are located inside the second receiving cavity (121), and the upper end of the second elastic support components is connected to or abuts against the second housing (120). The second connecting plate (310) is connected to or abuts against the lower end of the second elastic support components. The first connecting plate (210) and the second connecting plate (310) are used to support or install the battery (400).

2. The vehicle battery protection device according to claim 1, characterized in that, The first elastic support assembly includes a first fixed seat (220), a first damper (221), a first elastic element (222), a first movable seat (223), and a first transmission element (224). The first fixed seat (220) is fixedly disposed inside the first receiving cavity (111). One end of the first damper (221) is connected to the first fixed seat (220). The first movable seat (223) is disposed at the other end of the first damper (221). One end of the first transmission element (224) is rotatably connected to the first movable seat (223). The other end of the first transmission element (224) is rotatably connected to the first connecting plate (210). One end of the first elastic element (222) is connected to or abuts against the first movable seat (223). The other end of the first elastic element (222) is connected to or abuts against the first fixed seat (220).

3. The vehicle battery protection device according to claim 2, characterized in that, The first connecting plate (210) is provided with a first rotating connecting seat (225) on the side surface away from the second connecting plate (310). The number of the first elastic support components is two sets, and the two sets of the first elastic support components are symmetrically arranged on both sides of the first rotating connecting seat (225). The ends of the two first transmission members (224) away from the first movable seat (223) are rotatably connected to the first rotating connecting seat (225).

4. The vehicle battery protection device according to claim 1, characterized in that, The first elastic support mechanism (200) includes one or more first elastic damping components. The first elastic damping components are disposed inside the first receiving cavity (111). One end of the first elastic damping component is connected to or abuts against the first housing (110), and the other end of the first elastic damping component is connected to or abuts against the side surface of the first connecting plate (210) away from the second connecting plate (310).

5. The vehicle battery protection device according to claim 4, characterized in that, The first elastic damping assembly includes two first positioning blocks (230) and a first spring (231). One of the first positioning blocks (230) is fixedly disposed on the inner wall of the first receiving cavity (111), and the other first positioning block (230) is fixedly disposed on the side surface of the first connecting plate (210) away from the second connecting plate (310). The two ends of the first spring (231) are respectively sleeved on the outer periphery of the two first positioning blocks (230).

6. The vehicle battery protection device according to claim 1, characterized in that, The second elastic support assembly includes a second fixed seat (320), a second damper (321), a second elastic element (322), a second movable seat (323), and a second transmission element (324). The second fixed seat (320) is fixedly disposed inside the second receiving cavity (121). One end of the second damper (321) is connected to the second fixed seat (320). The second movable seat (323) is disposed at the other end of the second damper (321). One end of the second transmission element (324) is rotatably connected to the second movable seat (323). The other end of the second transmission element (324) is rotatably connected to the second connecting plate (310). One end of the second elastic element (322) is connected to or abuts against the second movable seat (323). The other end of the second elastic element (322) is connected to or abuts against the second fixed seat (320).

7. The vehicle battery protection device according to claim 6, characterized in that, The second connecting plate (310) has a second rotating connecting seat (325) on the side surface away from the first connecting plate (210). The number of the second elastic support components is two sets, and the two sets of the second elastic support components are symmetrically arranged on both sides of the second rotating connecting seat (325). The ends of the two second transmission members (324) away from the second moving seat (323) are rotatably connected to the second rotating connecting seat (325).

8. The vehicle battery protection device according to claim 1, characterized in that, The second elastic support mechanism (300) includes one or more second elastic damping components. The second elastic damping components are disposed inside the second receiving cavity (121). One end of the second elastic damping component is connected to or abuts against the second housing (120), and the other end of the second elastic damping component is connected to or abuts against the surface of the second connecting plate (310) away from the first connecting plate (210).

9. The vehicle battery protection device according to any one of claims 1 to 8, characterized in that, The first connecting plate (210) has a first buffer pad (510) on the side surface facing the second connecting plate (310), and the second housing (120) has a second buffer pad (520) on the side surface facing the first connecting plate (210).

10. A motor vehicle comprising a motor vehicle body, characterised in that The vehicle body is equipped with an on-board battery protection device as described in any one of claims 1 to 9.

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