Three-protection cover for battery box of electric vehicle
By designing a three-protection cover for the battery box, and utilizing the combination of the top cover, slide rails, and protective components, the problems of easy damage and inconvenient installation of the battery box are solved, thereby improving stability and safety, simplifying the installation and maintenance process of the battery box, and extending the battery's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JUNQIANG MOULD CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-02
AI Technical Summary
The existing battery box protective cover has a simple structure and lacks cushioning and shock absorption measures, which makes the battery easy to damage. It is also inconvenient to install and disassemble, increasing the difficulty of handling and labor intensity.
A battery box with three protective covers was designed, including a top cover, a slide rail, protective components, and auxiliary components. The top cover is equipped with a light-transmitting plate, a pressure relief valve, and a handle, while the slide rail is equipped with a protective plate and a rubber pad. Through the cooperation of these components, the battery can be buffered and shock-absorbing, installed conveniently, and its status can be observed.
It improves the stability and safety of the battery box, simplifies the installation and maintenance process, extends the battery life, and ensures stable operation of the battery in complex environments.
Smart Images

Figure CN224318634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery box equipment, and in particular to a three-protective cover for a battery box used in electric vehicles. Background Technology
[0002] A battery box is a battery pack consisting of several individual batteries, a housing, a battery management system, and related installation components. It has a standard battery box structure, battery box monitoring equipment, battery box connectors, and battery box environmental control equipment. With the widespread use of electric vehicles, the battery box, as one of their core components, is of particular importance in terms of safety and stability.
[0003] The aforementioned devices have the following drawbacks: the existing battery box protective cover structure is relatively simple and lacks effective cushioning and shock absorption measures, making it difficult to cope with bumps, vibrations, and accidental collisions during electric vehicle operation, which can easily damage the battery and affect its lifespan and performance. Furthermore, the existing battery box protective cover is not convenient to install and remove, which is not conducive to battery maintenance and replacement. Common battery box protective covers do not have easily operable parts designed during transportation, increasing the difficulty and labor intensity of transportation. Therefore, a three-protective cover for battery boxes used on electric vehicles is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a three-protective cover for battery boxes used in electric vehicles, which aims to improve the problems of insufficient stability and inconvenient installation and disassembly of battery boxes in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a three-protection cover for a battery box used in electric vehicles, comprising a box body, a top cover detachably connected to the upper surface of the box body, slide rails fixedly connected to the left and right surfaces inside the box body, a protective component inside the box body, an auxiliary component on the upper surface of the top cover, the auxiliary component including a mounting groove, a connecting seat fixedly installed at the left end of the inner wall of the mounting groove, a pressure relief valve fixedly installed at the right end of the inner wall of the mounting groove, a light-transmitting plate fixedly installed at the axial center of the upper surface of the top cover, and strip grooves opened at the left and right ends of the upper surface of the top cover, with handles hinged in the inner walls of the strip grooves.
[0006] As a further description of the above technical solution: the protective component includes a protective plate, and multiple sets of rubber pads are fixedly connected to the front and rear surfaces of the protective plate. Through holes are opened between the multiple sets of rubber pads. Screws are threaded to the left and right ends of the upper surface of the protective plate, and screw discs are fixedly connected to the top of the screws.
[0007] As a further description of the above technical solution: the front and rear ends of the top cover are fixedly connected to a fixing seat, and the fixing seat is detachably connected to a fixing bolt in the groove.
[0008] As a further description of the above technical solution: the cross-sectional area of the inner wall of the strip groove is adapted to the cross-sectional area of the outer surface of the handle, and the side surface of the handle is placed in the groove of the inner wall of the strip groove.
[0009] As a further description of the above technical solution: the outer surface of the handle is provided with a wavy arc structure, and the top corner of the handle is provided with a rounded corner structure.
[0010] As a further description of the above technical solution: the lower surface of the screw is connected through the groove on the upper surface of the slide rail.
[0011] As a further description of the above technical solution: the mounting groove is formed on the front surface of the top cover.
[0012] As a further description of the above technical solution: the protective plate is slidably connected to the outer wall of the slide rail.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the top cover, light-transmitting plate, hydraulic valve and other components in the equipment cooperate with each other through the connection relationship, which not only facilitates battery charging, pressure release, status observation and equipment handling, but also ensures that the battery box is installed firmly on the electric vehicle, improves the overall practicality and safety of the equipment, and simplifies the installation and maintenance process of the battery box.
[0015] 2. In this utility model, by utilizing the mutual cooperation between the protective plate, rubber pad, slide rail and other components in the equipment through the connection relationship, foreign objects are effectively prevented from entering the battery area, the damage of vibration to the battery is reduced, a solid protection is formed for the battery, the battery service life is extended, and the stable operation of the battery is ensured in complex driving environments. Attached Figure Description
[0016] Figure 1 This is an overall schematic diagram of a three-protective cover for a battery box used on an electric vehicle, as proposed in this utility model.
[0017] Figure 2 This is a side view of the overall design of a battery box with three protective covers for electric vehicles according to the present invention.
[0018] Figure 3 This is a schematic diagram of a light-transmitting plate for a three-layer protective cover for a battery box used in an electric vehicle, as proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of a protective assembly with three protective covers for a battery box used in an electric vehicle, as proposed in this utility model.
[0020] Figure 5This is a schematic diagram of a protective plate for a battery box with three protective covers for use in electric vehicles, as proposed in this utility model.
[0021] Legend:
[0022] 1. Housing; 2. Top cover; 3. Auxiliary components; 31. Mounting slot; 32. Pressure relief valve; 33. Connecting seat; 34. Light-transmitting plate; 35. Handle; 36. Strip groove; 37. Fixing seat; 38. Fixing bolt; 4. Slide rail; 5. Protective components; 51. Protective plate; 52. Rubber pad; 53. Through hole; 54. Threaded disc; 55. Threaded rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figures 1-2 This utility model provides an embodiment of a battery box with three protective covers for electric vehicles, including a box body 1. The box body 1 serves as the basic outer shell of the entire battery box, accommodating the battery and internal components such as protective components 5, and providing a relatively stable operating environment for the battery. A top cover 2 is detachably connected to the upper surface of the box body 1. The top cover 2 provides a certain degree of protection for the battery and related components inside the box body 1. The top cover 2 and the box body 1 work together to form a relatively enclosed space. Slide rails 4 are fixedly connected to the left and right surfaces inside the box body 1. The protective components 5 are provided inside the box body 1, and auxiliary components 3 are provided on the upper surface of the top cover 2.
[0025] Reference Figures 2-4The auxiliary component 3 includes a mounting slot 31, which is used to install components such as a connecting seat 33 and a pressure relief valve 32, providing a fixed position space for these components. The mounting slot 31 is opened on the front surface of the top cover 2. The connecting seat 33 is fixedly installed on the left end of the inner wall of the mounting slot 31 for connecting and cooperating with external charging equipment to charge the battery inside the box 1. The pressure relief valve 32 is fixedly installed on the right end of the inner wall of the mounting slot 31. When the internal pressure of the battery box is too high, the pressure relief valve 32 is opened to release the excess pressure, preventing damage to the box 1 or danger caused by excessive internal pressure, thus improving the protection of the equipment. A light-transmitting plate 34 is fixedly installed at the axis of the upper surface of the top cover 2. The light-transmitting plate 34 allows light to enter the battery box, making it easy for maintenance personnel to observe the status of the battery inside the battery box and to understand the working status of the battery in a timely manner. The left and right ends of the upper surface of the top cover 2 are provided with strip grooves 36, which provide installation positions and movement space for the handle 35, making it easy to fold or unfold the handle 35 and move the battery box.
[0026] Reference Figures 2-4 A handle 35 is hinged to the inner wall of the strip groove 36. The outer surface of the handle 35 has a wavy arc structure to increase grip comfort and anti-slip properties. The top corner of the handle 35 is rounded to prevent injury to the hand. The cross-sectional area of the inner wall of the strip groove 36 and the cross-sectional area of the outer surface of the handle 35 are matched to ensure that the handle 35 can fit snugly inside the strip groove 36 when not in use, without affecting the overall appearance and storage of the battery box. When in use, the handle 35 can be pulled out of the strip groove 36 for easy handling and movement of the battery box. The side surface of the handle 35 is placed in the groove of the inner wall of the strip groove 36. The front and rear ends of the top cover 2 are fixedly connected to the fixing seats 37. The fixing bolts 38 are detachably connected to the grooves of the fixing seats 37. The design of the fixing seats 37 ensures the stability of the battery box installation on the electric vehicle and prevents the battery box from loosening or shifting due to bumps during driving. The fixing bolts 38 are used in conjunction with external fixing structures to achieve a stable installation of the battery box.
[0027] Reference Figure 2 and Figure 4 , Figure 5The protective component 5 includes a protective plate 51, which is slidably connected to the outer wall of the slide rail 4. The slide rail 4 is designed to provide a track for the sliding of the protective plate 51 in the protective component 5, allowing the protective plate 51 to slide smoothly along the slide rail 4. This facilitates the adjustment of the position of the protective plate 51 to adapt to different protection needs or battery installation conditions. The protective plate 51 protects the battery, preventing foreign objects from entering the battery area and causing damage to the battery. It also isolates the battery from the external environment to a certain extent, providing a certain degree of safety protection. Multiple sets of rubber pads 52 are fixedly connected to the front and rear surfaces of the protective plate 51. The rubber pads 52 can buffer the collision between the protective plate 51 and the battery or other components, reducing the damage to the battery caused by vibration. When the battery box is subjected to external force... When subjected to impact or shaking during the operation of an electric vehicle, the protective plate 52 serves to protect the battery. Through holes 53 are provided between the multiple sets of rubber pads 52. The through holes 53 are used to pass through some connectors or wires, which facilitates the wiring layout and connection inside the battery box and helps to reduce the overall weight of the protective component 5, making it easier to install and adjust. The left and right ends of the upper surface of the protective plate 51 are threaded with screws 55. The top of the screws 55 is fixedly connected to a screw plate 54. The lower surface of the screws 55 is connected through the groove on the upper surface of the slide rail 4. By rotating the screw plate 54, the screws 55 can be moved up and down in the groove of the slide rail 4, which can fix or loosen the position of the protective plate 51. This allows for easy adjustment of the position of the protective plate 51 according to the actual situation, so that it can better adapt to the battery installation and protection requirements.
[0028] Working principle:
[0029] The mounting slot 31 is located on the front surface of the top cover 2. The connecting seat 33 on the left end of the inner wall connects to an external charging device to charge the battery. The pressure relief valve 32 on the right end automatically opens when the internal pressure of the battery box is too high, releasing excess pressure to prevent damage to the box 1 or any danger, thus improving the equipment's protective capabilities. The light-transmitting plate 34 at the center of the upper surface of the top cover 2 allows light to enter the battery box, facilitating maintenance personnel to observe the battery status and understand its working condition. The handles 35 are hinged in the strip grooves 36 on the left and right ends of the upper surface of the top cover 2. The wave-shaped arc structure and rounded corner design on the outer surface of the handles increase grip comfort and anti-slip properties, while preventing hand injuries. When not in use, the handles 35 are nestled in the strip grooves 36. When in use, the handles 35 are pulled up for easy transport and movement of the battery box. The fixing seats 37 at the front and rear ends of the top cover 2 cooperate with the fixing bolts 38 to ensure that the battery box is securely installed on the electric vehicle, preventing loosening or displacement due to bumps during driving and ensuring driving safety.
[0030] Inside the battery box, the protective plate 51 is slidably connected to the outer wall of the slide rail 4. Depending on the battery installation or protection requirements, the position of the protective plate 51 can be adjusted by rotating the screw 54 to drive the screw 55 to move up and down in the groove of the slide rail 4, thereby achieving flexible protection of the battery area, preventing foreign objects from entering and isolating the external environment, and ensuring battery safety. The rubber pads 52 on the front and rear surfaces of the protective plate 51 can buffer collisions when it comes into contact with the battery or other components, reducing the damage to the battery from vibration. When the battery box is subjected to external impact or the electric vehicle shakes, the rubber pads 52 play a key role in shock absorption and protection. The through holes 53 between the multiple sets of rubber pads 52 are used to pass through connectors or wires, which facilitates the internal wiring layout and connection of the battery box, while reducing the weight of the protective component 5 and facilitating the installation and adjustment of the protective plate 51.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery box protective cover for electric vehicles, comprising a box body (1), characterized in that: The top surface of the box (1) is detachably connected to a top cover (2), and the left and right surfaces inside the box (1) are fixedly connected to slide rails (4). The inside of the box (1) is provided with a protective component (5), and the top surface of the top cover (2) is provided with an auxiliary component (3). The auxiliary component (3) includes a mounting groove (31), a connecting seat (33) is fixedly installed on the left end of the inner wall of the mounting groove (31), a pressure relief valve (32) is fixedly installed on the right end of the inner wall of the mounting groove (31), a light-transmitting plate (34) is fixedly installed at the center of the upper surface of the top cover (2), and strip grooves (36) are opened at the left and right ends of the upper surface of the top cover (2), and a handle (35) is hinged in the inner wall of the strip groove (36).
2. The battery box protective cover for electric vehicles according to claim 1, characterized in that: The protective component (5) includes a protective plate (51), and multiple sets of rubber pads (52) are fixedly connected to the front and rear surfaces of the protective plate (51). Through holes (53) are opened between the multiple sets of rubber pads (52). Screws (55) are threaded to the left and right ends of the upper surface of the protective plate (51), and screw discs (54) are fixedly connected to the top of the screws (55).
3. The battery box protective cover for electric vehicles according to claim 1, characterized in that: The top cover (2) is fixedly connected to the front and rear ends with a fixing seat (37), and a fixing bolt (38) is detachably connected in the groove of the fixing seat (37).
4. The battery box protective cover for electric vehicles according to claim 1, characterized in that: The cross-sectional area of the inner wall of the strip groove (36) is adapted to the cross-sectional area of the outer surface of the handle (35), and the side surface of the handle (35) is placed in the groove of the inner wall of the strip groove (36).
5. A battery box protective cover for electric vehicles according to claim 1, characterized in that: The outer surface of the handle (35) is provided with a wave-shaped arc structure, and the top corner of the handle (35) is provided with a rounded corner structure.
6. The battery box protective cover for electric vehicles according to claim 2, characterized in that: The lower surface of the screw (55) is connected through the groove on the upper surface of the slide rail (4).
7. The battery box protective cover for electric vehicles according to claim 1, characterized in that: The mounting groove (31) is formed on the front surface of the top cover (2).
8. A battery box protective cover for electric vehicles according to claim 2, characterized in that: The protective plate (51) is slidably connected to the outer wall of the slide rail (4).