AGV battery protection device
By designing a battery protection device with a protective shell, buffer components, and sealing components, the problem of spontaneous combustion of AGV batteries has been solved, achieving safe buffering, ventilation and heat dissipation, and flame extinguishing of the battery, thus ensuring the safe operation of AGVs.
Patent Information
- Application Number
- CN202520314271.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-26
AI Technical Summary
AGV batteries are prone to spontaneous combustion during use, which can cause flames to endanger the entire automated guided vehicle. Current technology lacks effective protective measures.
A battery protection device was designed, comprising a protective shell, a protective cover, a buffer assembly, a sealing assembly, and a flame-retardant layer. It provides cushioning and vibration reduction, ventilation and heat dissipation, and seals the ventilation holes when the battery spontaneously combusts, while using the flame-retardant layer to consume oxygen and extinguish the flames.
This effectively avoids the harm of battery spontaneous combustion to AGVs, ensures the safety and reliability of batteries during use, and prevents the spread of fire.
Smart Images

Figure CN223967300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of AGV battery technology, specifically an AGV battery protection device. Background Technology
[0002] Automated Guided Vehicles (AGVs) are industrial vehicles that load goods automatically or manually, travel automatically along a set route or tow a cargo trolley to a designated location, and then load and unload goods automatically or manually.
[0003] Automated Guided Vehicles (AGVs) require built-in batteries to drive the corresponding electrical equipment during use. To protect the batteries, they are usually installed in a protective casing. However, due to the characteristics of batteries, they are prone to spontaneous combustion, and the flames generated by spontaneous combustion can gradually endanger the entire AGV. Therefore, improvements are needed. To address this, those skilled in the art have proposed an AGV battery protection device to solve the problems mentioned in the background. Utility Model Content
[0004] The purpose of this invention is to provide an AGV battery protection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An AGV battery protection device includes a protective shell and a protective cover detachably mounted on the top of the protective shell. The inner wall of the protective shell is provided with a first flame-retardant layer, and the inner wall of the protective cover is provided with a second flame-retardant layer. The protective shell has several first ventilation holes on both sides. The device also includes:
[0007] Mounting bracket, on which the battery body is mounted;
[0008] A buffer assembly, which is disposed at the bottom of the protective housing, is used to buffer and reduce vibration of the battery body;
[0009] A sealing assembly is disposed on both sides of the inner wall of the protective housing and is used to seal the first ventilation hole.
[0010] As a further embodiment of this utility model, limit plates are installed on both sides of the mounting base.
[0011] As a further embodiment of this utility model: the buffer assembly includes several telescopic rods installed at the bottom of the protective housing, the top of the telescopic rods being connected to the mounting base, and several buffer springs being provided between the bottom of the protective housing and the mounting base.
[0012] As a further improvement of this utility model: a plurality of connecting brackets are installed at the bottom of the protective cover, and a rubber plate is installed at the bottom of the connecting brackets.
[0013] As a further embodiment of this utility model: the sealing assembly includes side plates installed on both sides of the inner wall of the protective shell, with two side plates on each side, and two symmetrically distributed fixing rods installed between the two side plates. The fixing rods are slidably connected to the movable plate, which is in contact with the inner wall of the protective shell. The movable plate is provided with a second ventilation hole corresponding to the first ventilation hole. Guide wheels are rotatably provided on both sides of the top of the protective shell, and the two movable plates are connected by a connecting rope that passes around the guide wheels.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By installing the battery body on the mounting base and installing the protective cover on the top of the protective shell, the battery body can be buffered and vibration reduced in conjunction with the buffer component. This avoids the impact of bumps on the battery body during the use of the AGV. In addition, the battery body can be ventilated and cooled through the first ventilation holes on both sides of the protective shell. When the battery body catches fire, the flame will trigger the sealing component, which will block the first ventilation hole, thus making the battery body in a sealed space. With the first flame-retardant layer and the second flame-retardant layer, the battery body can burn inside the protective shell. Since the interior is sealed, the oxygen will be gradually consumed until the flame is extinguished, thereby preventing the battery from spontaneously combusting and endangering the entire automated guided vehicle (AGV). Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an AGV battery protection device.
[0016] Figure 2 This is a schematic diagram of the movable plate and connecting rope in an AGV battery protection device.
[0017] Figure 3 This is a three-dimensional structural diagram of a movable plate in an AGV battery protection device.
[0018] In the diagram: 1. Protective outer shell; 2. Protective cover; 3. Mounting base; 4. Telescopic rod; 5. Buffer spring; 6. Limiting plate; 7. Battery body; 8. First ventilation hole; 9. Side plate; 10. Fixing rod; 11. Movable plate; 12. Second ventilation hole; 13. Connecting rope; 14. Guide wheel; 15. First flame-retardant layer; 16. Second flame-retardant layer; 17. Connecting frame; 18. Rubber plate. Detailed Implementation
[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0020] Please see Figures 1-3An AGV battery protection device includes a protective shell 1 and a protective cover 2 detachably mounted on the top of the protective shell 1. The inner wall of the protective shell 1 is provided with a first flame-retardant layer 15, and the inner wall of the protective cover 2 is provided with a second flame-retardant layer 16. The protective shell 1 has several first ventilation holes 8 on both sides. The device also includes:
[0021] Mounting base 3, on which battery body 7 is mounted;
[0022] A buffer assembly is disposed at the bottom of the protective housing 1 and is used to buffer and reduce vibration of the battery body 7.
[0023] A sealing assembly is disposed on both sides of the inner wall of the protective housing 1 to seal the first ventilation hole 8.
[0024] By mounting the battery body 7 on the mounting base 3 and installing the protective cover 2 on the top of the protective shell 1, the buffer assembly can buffer and reduce the vibration of the battery body 7, thus avoiding the impact of bumps on the battery body 7 during the use of the AGV. In addition, the first ventilation holes 8 on both sides of the protective shell 1 enable ventilation and heat dissipation of the battery body 7. When the battery body 7 catches fire, the flame will trigger the sealing assembly, which will block the first ventilation holes 8, thus placing the battery body 7 in a sealed space. With the first flame-retardant layer 15 and the second flame-retardant layer 16, the battery body 7 can burn inside the protective shell 1. Since the interior is sealed, the oxygen will be gradually consumed until the flame is extinguished, thus preventing the battery from spontaneously combusting and endangering the entire automated guided vehicle AGV.
[0025] In one embodiment, limiting plates 6 are installed on both sides of the mounting base 3.
[0026] The placement position of the battery body 7 is restricted by the limiting plate 6, thereby facilitating the precise fixing of the battery body 7 onto the mounting base 3.
[0027] In one embodiment, the buffer assembly includes several telescopic rods 4 installed at the bottom of the protective housing 1. The top of the telescopic rods 4 is connected to the mounting base 3. Several buffer springs 5 are provided between the bottom of the protective housing 1 and the mounting base 3. A damping damper is also provided between the mounting base 3 and the bottom of the protective housing 1 to achieve damping and vibration reduction in conjunction with the buffer springs 5.
[0028] When using the AGV, the mounting base 3 will move up and down when encountering bumps. The mounting base 3 will compress the buffer spring 5, which will absorb the impact of the bumps on the battery body 7. In conjunction with the damping shock absorber, the battery body 7 can be damped and its vibration reduced, thus preventing the bumps from affecting the battery body 7.
[0029] In one embodiment, a plurality of connecting brackets 17 are installed at the bottom of the protective cover 2, and a rubber plate 18 is installed at the bottom of the connecting brackets 17.
[0030] During the process of installing the protective cover 2 on the top of the protective housing 1, the rubber plate 18 of the connecting bracket 17 will press on the top of the battery body 7 and squeeze the battery body 7, causing the battery body 7 to push the mounting base 3 down and squeeze the buffer spring 5, thereby elastically limiting the top and bottom of the battery body 7.
[0031] In one embodiment, the sealing assembly includes side plates 9 installed on both sides of the inner wall of the protective housing 1. There are two side plates 9 on each side, and two symmetrically distributed fixing rods 10 are installed between the two side plates 9. The fixing rods 10 are slidably connected to movable plates 11. The movable plates 11 are in contact with the inner wall of the protective housing 1. The movable plates 11 are provided with second ventilation holes 12 corresponding to the first ventilation holes 8. Guide wheels 14 are rotatably provided on both sides of the top of the protective housing 1. The two movable plates 11 are connected by a connecting rope 13 that passes around the guide wheels 14.
[0032] In the initial state, the second through hole on the movable plate 11 of the sealing assembly overlaps and connects with the first through hole, thereby allowing ventilation inside the protective shell 1 and facilitating ventilation and heat dissipation for the battery body 7. When the battery body 7 inside the protective shell 1 spontaneously combusts and produces flames, the flames will burn through the connecting rope 13 when they come into contact with it. The connecting rope 13 will then break, and the movable plate 11 will slide down along the fixed rod 10 under its own weight until it contacts the bottom side plate 9. At this time, the first ventilation hole 8 is misaligned with the second ventilation hole 12 on the movable plate 11, and the first ventilation hole 8 is blocked, making the battery body 7 a sealed space. As the battery spontaneously combusts, the oxygen inside the protective shell 1 is gradually depleted until the flames are extinguished.
[0033] It should be noted that the movable panel 11 is made of flame-retardant material.
[0034] This invention mounts the battery body 7 onto the mounting base 3 and the protective cover 2 onto the top of the protective shell 1. Combined with a buffer assembly, this provides cushioning and vibration reduction for the battery body 7, preventing the impact of bumps on the battery body 7 during AGV operation. Furthermore, the first ventilation holes 8 on both sides of the protective shell 1 allow for ventilation and heat dissipation of the battery body 7. When a flame appears on the battery body 7, it triggers a sealing assembly, which blocks the first ventilation holes 8, thus placing the battery body 7 in a sealed space. Combined with the first flame-retardant layer 15 and the second flame-retardant layer 16, the battery body 7 can burn within the protective shell 1. Since the interior is sealed, oxygen is gradually consumed until the flame is extinguished, preventing spontaneous combustion of the battery and thus avoiding damage to the entire automated guided vehicle (AGV).
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An AGV battery protection device, comprising a protective housing and a protective cover detachably mounted on the top of the protective housing, characterized in that, The inner wall of the protective shell is provided with a first flame-retardant layer, the inner wall of the protective cover is provided with a second flame-retardant layer, and several first ventilation holes are provided on both sides of the protective shell. It also includes: Mounting bracket, on which the battery body is mounted; A buffer assembly, which is disposed at the bottom of the protective housing, is used to buffer and reduce vibration of the battery body; A sealing assembly is disposed on both sides of the inner wall of the protective housing and is used to seal the first ventilation hole.
2. The AGV battery protection device according to claim 1, characterized in that, Limiting plates are installed on both sides of the mounting base.
3. The AGV battery protection device according to claim 2, characterized in that, The buffer assembly includes several telescopic rods installed at the bottom of the protective housing, with the top of the telescopic rods connected to the mounting base, and several buffer springs provided between the bottom of the protective housing and the mounting base.
4. The AGV battery protection device according to claim 1, characterized in that, The bottom of the protective cover is equipped with several connecting brackets, and the bottom of the connecting brackets is equipped with rubber plates.
5. The AGV battery protection device according to claim 1, characterized in that, The sealing assembly includes side plates installed on both sides of the inner wall of the protective housing. There are two side plates on each side, and two symmetrically distributed fixed rods are installed between the two side plates. The fixed rods are slidably connected to movable plates. The movable plates are in contact with the inner wall of the protective housing. The movable plates are provided with second ventilation holes corresponding to the first ventilation holes. Guide wheels are rotatably provided on both sides of the top of the protective housing. The two movable plates are connected by a connecting rope that passes around the guide wheels.