Battery box body structure based on glass fiber preimpregnated polyphenylene sulfide

Abstract

The utility model relates to the technical field of battery box bodies, and discloses a battery box body structure based on glass fiber preimpregnated polyphenylene sulfide, which comprises a machine body, and the machine body comprises a battery lower box body. According to the battery box body structure based on the glass fiber preimpregnated polyphenylene sulfide, a spring pushes a fixed plate to move, and the fixed plate moves to drive a guide plate to move in a guide groove, so that the movement of the fixed plate is guided, and the position of the fixed plate is prevented from shifting in the moving process; one side of the fixing plate is gradually attached to the surface of the wire under the pushing of a spring, so that the position of the wire can be fixed, and the problem that the diameter of a wire outlet hole formed in an existing battery box body is fixed, and the wire shakes during working when encountering the wire with the diameter smaller than that of the wire outlet hole is solved; the problem that the service life of the wire is shortened due to the fact that the wire collides with the inner wall of the wire outlet hole for many times in the shaking process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box structure based on glass fiber pre-impregnated polyphenylene sulfide. Background Technique

[0002] With the rapid development of the electric vehicle industry, lithium batteries, as new energy batteries, are one of the most important core components of electric vehicles. It is extremely important to protect the safety of the battery against high temperature, water immersion, and impact. The outer shell of the battery box is of utmost importance. Therefore, high requirements are placed on the strength, stiffness, waterproofness, corrosion resistance, etc. of the battery box. Traditional battery box materials are mainly made of materials such as aluminum and thermosetting epoxy resin. Due to the inability to be thermoplastically formed, it is restricted in structural design. The battery box requires good insulation and waterproofness, making it difficult for existing materials to meet the development needs of the battery box. Especially in the context of replacing steel with plastic, the battery box shell material is gradually expanding towards thermoplastic special engineering composite materials.

[0003] Thermoplastic prepreg is a reinforcing material obtained by pre-impregnating glass fiber, glass fiber cloth, etc. with a thermoplastic resin after melting or dissolving. It has the advantages of low density, high strength, corrosion resistance, low coefficient of thermal expansion, and high dimensional stability, and has become the main choice for high-performance reinforcing materials. Carbon fiber prepreg has become a necessary choice in special scenarios such as aerospace, wind power generation, high-speed rail, and automobiles.

[0004] Polyphenylene sulfide (PPS) is a resin with excellent rigidity, high temperature resistance, corrosion resistance, and flame retardancy. It has great advantages in preparing large-scale reinforced components after being pre-impregnated with glass fiber.

[0005] However, the diameter of the wire outlet hole provided in the existing battery box is fixed. When encountering a wire smaller than the diameter of the wire outlet hole, the wire will shake during operation and collide with the inner wall of the wire outlet hole multiple times during the shaking process, resulting in a reduction in the service life of the wire.

[0006] To solve the above problems, we made improvements and proposed a battery box structure based on glass fiber pre-impregnated polyphenylene sulfide. Content of the Utility Model

[0007] The purpose of the utility model is to provide a battery box structure based on glass fiber pre-impregnated polyphenylene sulfide to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solutions:

[0009] A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide, comprising a body, the body includes a battery lower box body, the top of the battery lower box body is movably connected with a battery upper box cover, the top of the inner cavity of the battery upper box cover is fixedly connected with a wire arranging board, a wire arranging groove is opened in the inner cavity of the wire arranging board, and a fixing mechanism is installed in the inner cavity of the battery upper box cover;

[0010] The fixing mechanism includes an inlet and outlet wire hole and a movable groove, the surface of the inlet and outlet wire hole is fixedly connected with the inner cavity of the battery upper box cover, the movable groove is opened in the inner cavity of the battery upper box cover, one side of the inlet and outlet wire hole is fixedly connected with the surface of the wire arranging board, one side of the inner cavity of the movable groove is fixedly connected with a spring, one side of the spring is fixedly connected with a fixing plate, and one side of the fixing plate is movably connected with the surface of the inlet and outlet wire hole.

[0011] As a further scheme of the present invention: a guiding groove is opened at the top of the inner cavity of the movable groove, a guiding plate is movably connected in the inner cavity of the guiding groove, and the bottom of the guiding plate is fixedly connected with the top of the fixing plate.

[0012] As a further scheme of the present invention: positioning mechanisms are installed on both sides of the battery lower box body, the positioning mechanisms include a sub buckle and a mother buckle, one side of the sub buckle is fixedly connected with the surface of the battery upper box cover, one side of the mother buckle is fixedly connected with the surface of the battery lower box body, a second baffle is opened in the inner cavity of the mother buckle, a positioning plate is inserted and connected in the inner cavity of the second baffle, and the top of the positioning plate is fixedly connected with the bottom of the sub buckle.

[0013] As a further scheme of the present invention: positioning grooves are fixedly connected to both sides of the inner cavity of the second baffle, first baffles are fixedly connected to both sides of the surface of the positioning plate, and one side of the first baffle is movably connected with the surface of the positioning groove.

[0014] As a further scheme of the present invention: fastening bolts are threadedly connected to the front side and the back side of the inner cavity of the sub buckle, and the surface of the fastening bolts is threadedly connected with the inner cavity of the mother buckle.

[0015] As a further scheme of the present invention: a nut is threadedly connected to the surface of the fastening bolt, and the top of the nut is movably connected with the bottom of the mother buckle.

[0016] As a further scheme of the present invention: a sealing groove is opened in the inner cavity of the battery upper box cover, a plug-in board is inserted and connected in the inner cavity of the sealing groove, and the top of the plug-in board is fixedly connected with the bottom of the battery upper box cover.

[0017] As a further scheme of the present invention: a high-temperature resistant silicone rubber strip is fixedly connected to one side of the inner cavity of the sealing groove, and one side of the high-temperature resistant silicone rubber strip is movably connected with the surface of the plug-in board.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The present utility model drives the fixed plate to move through a spring, and drives the guide plate to move inside the guide groove through the movement of the fixed plate to guide the movement of the fixed plate, preventing the position of the fixed plate from shifting during the movement. Under the push of the spring, one side of the fixed plate will gradually fit with the surface of the wire, and the position of the wire can be fixed, solving the problem that the diameter of the wire outlet hole provided in the existing battery box body is fixed. When encountering a wire smaller than the diameter of the wire outlet hole, the wire will shake during operation and collide with the inner wall of the wire outlet hole multiple times during the shaking process, resulting in a reduction in the service life of the wire.

[0020] 2. Through the setting of the guide groove, the present utility model enables the guide plate to move inside the movable groove, thereby guiding the movement of the guide plate and preventing the position of the guide plate from shifting during the movement. Through the setting of the second baffle, the positioning plate can be inserted into the female buckle, thereby playing a positioning role between the male buckle and the female buckle. Description of the Drawings

[0021] Figure 1 It is a structural schematic diagram of a battery box body structure based on glass fiber pre-impregnated polyphenylene sulfide;

[0022] Figure 2 It is a connection schematic diagram of the battery lower box body structure in a battery box body structure based on glass fiber pre-impregnated polyphenylene sulfide;

[0023] Figure 3 It is a connection schematic diagram of the female buckle structure in a battery box body structure based on glass fiber pre-impregnated polyphenylene sulfide;

[0024] Figure 4 It is a connection schematic diagram of the battery upper box cover structure in a battery box body structure based on glass fiber pre-impregnated polyphenylene sulfide;

[0025] Figure 5 It is a connection schematic diagram of the wire inlet and outlet hole structure in a battery box body structure based on glass fiber pre-impregnated polyphenylene sulfide.

[0026] In the figure: 1. Body; 101. Lower battery box; 102. Upper battery cover; 103. Plug-in board; 104. Sealing groove; 105. High-temperature resistant silicone rubber strip; 106. Wiring board; 107. Wiring groove; 2. Fixing mechanism; 201. Wire inlet and outlet hole; 202. Spring; 203. Fixed plate; 204. Guide plate; 205. Guide groove; 206. Movable groove; 3. Positioning mechanism; 301. Sub buckle; 302. Fastening bolt; 303. Nut; 304. First baffle; 305. Mother buckle; 306. Second baffle; 307. Positioning groove; 308. Positioning plate. Detailed implementation mode

[0027] To make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment

[0029] Please refer to Figure 1 、 4 and Fig. 5, a battery box structure based on glass fiber pre-impregnated polyphenylene sulfide, including a body 1, the body 1 includes a lower battery box 101, the top of the lower battery box 101 is movably connected with an upper battery cover 102, the top of the inner cavity of the upper battery cover 102 is fixedly connected with a wiring board 106, a wiring groove 107 is opened in the inner cavity of the wiring board 106, and a fixing mechanism 2 is installed in the inner cavity of the upper battery cover 102;

[0030] The fixing mechanism 2 includes a wire inlet and outlet hole 201 and a movable groove 206. The surface of the wire inlet and outlet hole 201 is fixedly connected with the inner cavity of the upper battery cover 102. The movable groove 206 is opened in the inner cavity of the upper battery cover 102. One side of the wire inlet and outlet hole 201 is fixedly connected with the surface of the wiring board 106. One side of the inner cavity of the movable groove 206 is fixedly connected with a spring 202. One side of the spring 202 is fixedly connected with a fixed plate 203. One side of the fixed plate 203 is movably connected with the surface of the wire inlet and outlet hole 201.

[0031] A guide groove 205 is opened at the top of the inner cavity of the movable groove 206. A guide plate 204 is movably connected in the inner cavity of the guide groove 205. The bottom of the guide plate 204 is fixedly connected with the top of the fixed plate 203. Through the above technical solution, through the setting of the guide groove 205, the guide plate 204 can move inside the movable groove 206, so as to play a guiding role in the movement of the guide plate 204 and prevent the position of the guide plate 204 from shifting during the movement.

[0032] Please refer to Figure 1 、 2 and 3, a battery box structure based on glass fiber pre-impregnated polyphenylene sulfide. Positioning mechanisms 3 are installed on both sides of the battery lower box body 101. The positioning mechanism 3 includes a sub-buckle 301 and a mother-buckle 305. One side of the sub-buckle 301 is fixedly connected to the surface of the battery upper cover 102, and one side of the mother-buckle 305 is fixedly connected to the surface of the battery lower box body 101. A second baffle 306 is provided in the inner cavity of the mother-buckle 305. A positioning plate 308 is inserted and connected in the inner cavity of the second baffle 306. The top of the positioning plate 308 is fixedly connected to the bottom of the sub-buckle 301. Through the above technical solution, through the setting of the second baffle 306, the positioning plate 308 can be inserted into the interior of the mother-buckle 305, so as to play a positioning role between the sub-buckle 301 and the mother-buckle 305.

[0033] Positioning grooves 307 are fixedly connected to both sides of the inner cavity of the second baffle 306. First baffles 304 are fixedly connected to both sides of the surface of the positioning plate 308. One side of the first baffle 304 is movably connected to the surface of the positioning groove 307. Through the above technical solution, through the setting of the positioning groove 307, it plays a limiting role in the movement of the first baffle 304, preventing the first baffle 304 from disengaging from the interior of the second baffle 306 in a non-loaded state. Tightening bolts 302 are threadedly connected to the front side and the back side of the inner cavity of the sub-buckle 301. The surface of the tightening bolt 302 is threadedly connected to the inner cavity of the mother-buckle 305. Through the above technical solution, through the setting of the tightening bolt 302, it plays a fixing role on the sub-buckle 301 and the mother-buckle 305, preventing the bottom of the sub-buckle 301 from disengaging from the top of the mother-buckle 305.

[0034] The surface of the fastening bolt 302 is threadedly connected with a nut 303. The top of the nut 303 is movably connected to the bottom of the female buckle 305. Through the above technical solution, the position of the fastening bolt 302 is fixed by the setting of the nut 303, thereby preventing the fastening bolt 302 from detaching from the inside of the male buckle 301 and the female buckle 305. A sealing groove 104 is provided in the inner cavity of the battery upper cover 102. A plug-in board 103 is inserted and connected in the inner cavity of the sealing groove 104. The top of the plug-in board 103 is fixedly connected to the bottom of the battery upper cover 102. Through the above technical solution, the plug-in board 103 can enter the inside of the battery lower box body 101 through the setting of the sealing groove 104, so that the battery upper cover 102 can be stably attached to the surface of the battery lower box body 101. One side of the inner cavity of the sealing groove 104 is fixedly connected with a high-temperature resistant silicone rubber strip 105. One side of the high-temperature resistant silicone rubber strip 105 is movably connected to the surface of the plug-in board 103. Through the above technical solution, the sealing performance of the connection between the battery lower box body 101 and the high-temperature resistant silicone rubber strip 105 is increased through the setting of the high-temperature resistant silicone rubber strip 105, thereby protecting the battery inside the battery lower box body 101.

[0035] The working principle of the present utility model is as follows: First, place the battery inside the battery lower box body 101, and then move the battery upper cover 102 downward. During the movement of the battery upper cover 102, place the wire inside the wire slot 107 and stretch it through the inside of the wire inlet and outlet hole 201 to the outside of the battery upper cover 102. The movement of the battery upper cover 102 drives the plug-in board 103 to move until the surface of the plug-in board 103 is inserted into the inside of the sealing groove 104. At the same time, the movement of the battery upper cover 102 drives the sub-fastener 301 to move, and the movement of the sub-fastener 301 drives the positioning plate 308 to move. When the battery upper cover 102 is completely fitted with the battery lower box body 101, the positioning plate 308 is inserted into the inside of the second baffle 306. The movement of the positioning plate 308 drives the first baffle 304 to move. After the positioning plate 308 enters the inside of the second baffle 306, the surface of the first baffle 304 will be in contact with the surface of the positioning groove 307, thereby preventing the positioning plate 308 from disengaging from the inside of the second baffle 306 in a non-loaded state. Then, hold the fastening bolt 302 and rotate it until the surface of the fastening bolt 302 is threadedly connected to the inside of the sub-fastener 301 and the female fastener 305, thereby positioning between the sub-fastener 301 and the female fastener 305. Then, hold the nut 303 and rotate it on the surface of the fastening bolt 302 until the top of the nut 303 is in contact with the bottom of the female fastener 305, thereby fixing the position of the fastening bolt 302, so that the battery lower box body 101 and the battery upper cover 102 can be stably fixed and fitted. When the wire is inside the wire inlet and outlet hole 201, the spring 202 pushes the fixing plate 203 to move. The movement of the fixing plate 203 drives the guiding plate 204 to move inside the guiding groove 205 to guide the movement of the fixing plate 203 and prevent the fixing plate 203 from shifting in position during movement. Under the push of the spring 202, one side of the fixing plate 203 will gradually be in contact with the surface of the wire, thus completing the fixation of the position of the wire inside the wire inlet and outlet hole 201 and preventing it from shaking during operation.

[0036] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide, comprising a body (1), characterized in that: The machine body (1) comprises a battery lower box (101), the top of the battery lower box (101) is movably connected to a battery upper box cover (102), the top of the inner cavity of the battery upper box cover (102) is fixedly connected to a wiring board (106), the inner cavity of the wiring board (106) is provided with a wiring groove (107), and the inner cavity of the battery upper box cover (102) is installed with a fixing mechanism (2); The fixing mechanism (2) comprises an inlet and outlet hole (201) and a movable groove (206); the surface of the inlet and outlet hole (201) is fixedly connected to the inner cavity of the battery upper box cover (102); the movable groove (206) is opened in the inner cavity of the battery upper box cover (102); one side of the inlet and outlet hole (201) is fixedly connected to the surface of the wiring board (106); one side of the inner cavity of the movable groove (206) is fixedly connected to a spring (202); one side of the spring (202) is fixedly connected to a fixing plate (203); one side of the fixing plate (203) is movably connected to the surface of the inlet and outlet hole (201).

2. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 1, characterized in that: A guide groove (205) is provided at the top of the inner cavity of the movable groove (206), and a guide plate (204) is movably connected to the inner cavity of the guide groove (205), and the bottom of the guide plate (204) is fixedly connected to the top of the fixed plate (203).

3. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 1, characterized in that: Positioning mechanisms (3) are installed on both sides of the battery lower box (101), and the positioning mechanism (3) includes a sub-clip (301) and a main clip (305), one side of the sub-clip (301) is fixedly connected to the surface of the battery upper box cover (102), one side of the main clip (305) is fixedly connected to the surface of the battery lower box (101), the inner cavity of the main clip (305) is provided with a second baffle (306), the inner cavity of the second baffle (306) is plugged with a positioning plate (308), and the top of the positioning plate (308) is fixedly connected to the bottom of the sub-clip (301).

4. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 3, characterized in that: Both sides of the inner cavity of the second baffle plate (306) are fixedly connected with positioning grooves (307), and both sides of the surface of the positioning plate (308) are fixedly connected with the first baffle plate (304), and one side of the first baffle plate (304) is movably connected to the surface of the positioning groove (307).

5. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 3, characterized in that: The front side and the back side of the inner cavity of the sub-clip (301) are both threadedly connected with a fastening bolt (302), and the surface of the fastening bolt (302) is threadedly connected to the inner cavity of the female clip (305).

6. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 5, characterized in that: The surface of the fastening bolt (302) is threadedly connected with a nut (303), and the top of the nut (303) is movably connected to the bottom of the female buckle (305).

7. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 1, characterized in that: The inner cavity of the battery upper case cover (102) is provided with a sealing groove (104), the inner cavity of the sealing groove (104) is plugged with a plug board (103), and the top of the plug board (103) is fixedly connected to the bottom of the battery upper case cover (102).

8. A battery box structure based on glass fiber pre-impregnated polyphenylene sulfide according to claim 7, characterized in that: A high temperature resistant silicone rubber strip (105) is fixedly connected to one side of the inner cavity of the sealing groove (104), and one side of the high temperature resistant silicone rubber strip (105) is movably connected to the surface of the plug board (103).

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