Waterproof battery connection terminal

Abstract

The utility model relates to the field of battery systems, in particular to a waterproof battery connecting terminal which comprises a terminal seat and a protective cover, the terminal seat comprises a seat plate, a lower surrounding plate is arranged on the periphery of the top of the seat plate, a lower wire passing hole is formed in the front side wall of the lower surrounding plate, a sealing groove is formed in the top of the lower surrounding plate, and a sealing ring is arranged in the sealing groove; the protective cover comprises a cover plate, an upper surrounding plate is arranged on the periphery of the bottom of the cover plate, an upper wire passing hole is formed in the front side wall of the upper surrounding plate, an inserting convex edge is arranged at the bottom of the upper surrounding plate and matched with the sealing groove in an inserting mode, and a shielding edge is arranged on the outer side of the inserting convex edge and covers and shields a gap formed by the inserting convex edge and the sealing groove. According to the utility model, the shielding outer edge and the sealing groove are designed at the buckling position of the terminal seat and the protective cover, the sealing ring is arranged in the sealing groove, the shielding outer edge can shield the buckling gap, and the waterproof sealing performance of the whole battery connecting terminal can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of battery systems, and more particularly to a waterproof battery connection terminal. Background Technology

[0002] In a battery system, different numbers of battery pack modules are configured according to actual capacity requirements. These battery packs are electrically connected to each other via connectors, and the battery packs can also be connected to external components. The connector structure typically includes connecting wires and terminals, with the terminals mounted on the battery pack. Existing technology, Chinese utility model patent application number CN202122913877.8 discloses a battery terminal using copper busbars. This terminal uses copper busbars to effectively increase the electrical connection area. Limiting grooves are provided on both sides of the terminal block for fixing a protective cover (the protective cover is fixed to the limiting grooves via a snap-fit ​​structure; for details of the protective cover's structure, see patents application numbers 202121807078.6 and 202223116646.5). However, there is no waterproof structure between the protective cover and the terminal block, resulting in low waterproof performance after the connecting wires and terminals are installed. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a waterproof battery connection terminal. This utility model adopts the following technical solution:

[0004] This utility model provides a waterproof battery connection terminal, including a terminal base, a metal connecting piece disposed in the terminal base, a protective cover disposed on the top of the terminal base, the terminal base including a base plate, the base plate being provided with mounting holes for the metal connecting piece to pass through, a lower surrounding plate being provided around the top of the base plate, a lower wire hole being provided on the front side wall of the lower surrounding plate, a sealing groove being provided on the top of the lower surrounding plate, and a sealing ring being disposed in the sealing groove;

[0005] The protective cover includes a cover plate, and an upper enclosure plate is provided around the bottom of the cover plate. An upper wire-passing hole is provided on the front side wall of the upper enclosure plate. The upper wire-passing hole and the lower wire-passing hole correspond to each other to form a complete wire-passing through hole. An insertion protrusion is provided at the bottom of the upper enclosure plate. The insertion protrusion is inserted into the sealing groove. A blocking edge is provided on the outer side of the insertion protrusion. The blocking edge is connected to the outer side wall of the upper enclosure plate, and the blocking edge covers and blocks the gap formed by the insertion protrusion and the sealing groove.

[0006] Preferably, a limiting plate is provided on the inner wall of the mounting hole, the limiting plate extends downward at an angle, and a limiting hole is provided on the metal connecting piece, the metal connecting piece being inserted into the limiting hole.

[0007] Preferably, the base plate is provided with two mounting holes to facilitate the passage of the metal connecting piece.

[0008] Preferably, a lower wire sleeve is provided at the corresponding position of the outer port of the lower wire hole, the lower wire sleeve is connected to the outer wall of the lower enclosure, and the sealing groove extends to the front end of the lower wire sleeve; an upper wire sleeve is provided at the corresponding position of the outer port of the upper wire hole, the upper wire sleeve is connected to the outer wall of the upper enclosure, and the insertion protrusion and the blocking edge both extend to the front end of the upper wire sleeve; the lower wire sleeve and the upper wire sleeve correspond to each other to form a complete wire wrapping ring.

[0009] Preferably, a lower sealing gasket is provided on the inner wall of the lower cable sleeve, and the lower sealing gasket is connected to the sealing ring; an upper sealing gasket is provided on the inner wall of the upper cable sleeve; the lower sealing gasket and the upper sealing gasket correspond to each other to form a complete sealing sleeve.

[0010] Preferably, the left and right side walls of the protective cover are provided with pivots, and the pivots on both sides are rotatably connected to a U-shaped handle arranged above the protective cover. The U-shaped handle is provided with arc-shaped guide grooves on both sides, and the side wall of the U-shaped handle is provided with an insertion port at a position corresponding to the upper end of the arc-shaped guide groove. The insertion port communicates with the arc-shaped guide groove.

[0011] The left and right side walls of the terminal block are provided with pivot posts. The pivot posts enter the arc-shaped guide groove from the insertion port and slide and engage with the arc-shaped guide groove. The lower inner wall of the arc-shaped guide groove is provided with a limit protrusion.

[0012] Preferably, the rear end of the U-shaped handle is provided with an elastic retaining plate, and the elastic retaining plate is provided with a snap-fit ​​hole; the rear part of the terminal block is provided with a slot, and the slot is provided with a snap-fit ​​protrusion, which snaps into the snap-fit ​​hole.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This invention features a shielding outer edge and a sealing groove at the connection point between the terminal block and the protective cover. A sealing ring is arranged in the sealing groove, and the shielding outer edge can cover the gaps in the connection. This invention can effectively improve the overall waterproof and sealing performance of the battery connection terminal. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the waterproof battery connection terminal in Embodiment 1 of this utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the waterproof battery connection terminal in Embodiment 1 of this utility model;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the terminal block structure in Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the protective cover in Embodiment 1 of this utility model;

[0021] Figure 6 This is a cross-sectional view of the waterproof battery connection terminal in Embodiment 1 of this utility model;

[0022] Figure 7 This is a schematic diagram of the arrangement of the rotating shaft on the protective cover in Embodiment 1 of this utility model;

[0023] Figure 8 This is a schematic diagram of the U-shaped handle in Embodiment 1 of this utility model;

[0024] Figure 9 This is a schematic diagram of the arrangement of the pivot pin on the terminal block in Embodiment 1 of this utility model;

[0025] Figure 10 This is a schematic diagram of the U-shaped handle and the pivot post used in the first embodiment of this utility model.

[0026] Figure 11 This is a schematic diagram of the waterproof battery connection terminal in Embodiment 2 of this utility model.

[0027] Figure 12 This is a schematic diagram of the internal structure of the waterproof battery connection terminal in Embodiment 2 of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Terminal block; 101. Base plate; 102. Mounting hole; 103. Lower surround plate; 104. Lower wire passage hole; 105. Sealing groove; 106. Lower wire sleeve; 107. Limiting plate; 2. Metal connecting piece; 201. Limiting hole; 3. Protective cover; 301. Cover plate; 302. Upper surround plate; 303. Upper wire passage hole; 304. Insertion protrusion; 305. Covering edge; 306. Upper wire sleeve; 4. Sealing ring; 401. Lower sealing gasket; 402. Upper sealing gasket; 5. Pivot post; 6. Rotating shaft; 7. U-shaped handle; 701. Arc-shaped guide groove; 702. Insertion port; 703. Limiting protrusion; 8. Slot; 801. Snap-fit ​​protrusion; 9. Elastic retaining plate; 901. Snap-fit ​​hole. Detailed Implementation

[0029] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] Example 1

[0031] like Figures 1 to 5 As shown, this embodiment discloses a waterproof battery connection terminal, including a terminal base 1, a metal connecting piece 2 disposed in the terminal base 1, the metal connecting piece 2 may be a copper busbar, a protective cover 3 disposed on the top of the terminal base 1, the terminal base 1 includes a base plate 101, the base plate 101 is provided with mounting holes 102 for the metal connecting piece 2 to pass through, a lower surrounding plate 103 is provided around the top of the base plate 101, a lower wire hole 104 is provided on the front side wall of the lower surrounding plate 103, a sealing groove 105 is provided on the top of the lower surrounding plate 103, and a sealing ring 4 is disposed in the sealing groove 105.

[0032] The protective cover 3 includes a cover plate 301. An upper surrounding plate 302 is provided around the bottom of the cover plate 301. An upper wire-passing hole 303 is provided on the front side wall of the upper surrounding plate 302. The upper wire-passing hole 303 and the lower wire-passing hole 104 correspond to each other to form a complete through-hole for wire transmission. Connecting wires pass through the through-hole. An insertion flange 304 is provided at the bottom of the upper surrounding plate 302. The insertion flange 304 is inserted into and engages with the sealing groove 105. The insertion flange 304 abuts against the sealing ring 4. A blocking flange 305 is provided on the outer side of the insertion flange 304. The blocking flange 305 connects to the outer side wall of the upper surrounding plate 302 and covers and blocks the gap formed between the insertion flange 304 and the sealing groove 105.

[0033] In this embodiment, a lower cable sleeve 106 is provided at the corresponding position of the outer port of the lower cable hole 104. The lower cable sleeve 106 is connected to the outer wall of the lower enclosure 103, and the sealing groove 105 extends to the front end of the lower cable sleeve 106. An upper cable sleeve 306 is provided at the corresponding position of the outer port of the upper cable hole 303. The upper cable sleeve 306 is connected to the outer wall of the upper enclosure 302, and the insertion protrusion 304 and the blocking edge 305 both extend to the front end of the upper cable sleeve 306. The lower cable sleeve 106 and the upper cable sleeve 306 correspond to each other to form a complete cable wrapping ring, which is then sleeved on the connecting wire.

[0034] In this embodiment, a lower sealing gasket 401 is provided on the inner wall of the lower cable sleeve 106, and the lower sealing gasket 401 is integrally formed and connected with the sealing ring 4; an upper sealing gasket 402 is provided on the inner wall of the upper cable sleeve 306; the lower sealing gasket 401 and the upper sealing gasket 402 correspond to each other to form a complete sealing sleeve, and the sealing sleeve covers the connecting wire to improve waterproof sealing.

[0035] like Figure 6As shown, a limiting plate 107 is provided on the inner wall of the mounting hole 102. The limiting plate 107 extends downward at an angle. A limiting hole 201 is provided on the metal connecting piece 2. After the metal connecting piece 2 is inserted into the mounting hole 102, the lower end of the limiting plate 107 is inserted into the limiting hole 201 to prevent the metal connecting piece 2 from coming out. In this embodiment, the metal connecting piece 2 is L-shaped. The metal connecting piece 2 is also provided with an upper connecting hole for typical connection with connecting wires and a lower connecting hole for connection with the internal circuit of the battery pack. The structure of the metal connecting piece 2 has been disclosed in the prior art in patent application number 202122913877.8. Other details not described herein will not be repeated here.

[0036] like Figures 7 to 10 As shown, in this embodiment, the protective cover 3 and the terminal block 1 are connected by a handle-type snap-fit ​​structure. Specifically, a rotating shaft 6 is fixed on both the left and right side walls of the protective cover 3. The rotating shaft 6 on both sides is rotatably connected to a U-shaped handle 7 arranged above the protective cover 3. An arc-shaped guide groove 701 is provided on both sides of the U-shaped handle 7. An insertion port 702 is provided on the side wall of the U-shaped handle 7 at a position corresponding to the upper port of the arc-shaped guide groove 701. The insertion port 702 communicates with the arc-shaped guide groove 701. A pivot post 5 is fixed on both the left and right side walls of the terminal block 1. The pivot post 5 enters the arc-shaped guide groove 701 from the insertion port 702 and slides and snaps into the arc-shaped guide groove 701. A limit protrusion 703 is provided on the lower inner wall of the arc-shaped guide groove 701.

[0037] In use, align the insertion port 702 with the pivot post 5 so that the pivot post 5 slides into the arc-shaped guide groove 701. Rotate the U-shaped handle 7 downward so that the arc-shaped guide groove 701 slides upward around the pivot post 5, thereby enabling the protective cover 3 to be fastened on the terminal block 1. When the pivot post 5 passes the limiting protrusion 703, the U-shaped handle 7 is basically in a horizontal state, and the limiting protrusion 703 abuts against the pivot post 5 to prevent the U-shaped handle 7 from rebounding and resetting.

[0038] It should be noted that both the terminal block 1 and the protective cover 3 are made of plastic and can be manufactured using injection molding.

[0039] Example 2

[0040] like Figure 11 and 12 As shown, in this embodiment, an elastic retaining plate 9 is designed at the rear end of the U-shaped handle 7, and a snap-fit ​​hole 901 is provided on the elastic retaining plate 9. At the same time, a slot 8 is designed at the rear of the terminal block 1, and a snap-fit ​​protrusion 801 is provided in it. When the U-shaped handle 7 is rotated to a horizontal position, the elastic retaining plate 9 is inserted into the slot 8, and the snap-fit ​​protrusion 801 engages with the snap-fit ​​hole 901, thereby further preventing the U-shaped handle 7 from being accidentally opened.

[0041] In this embodiment, the base plate 101 is designed with two mounting holes 102 to facilitate the passage of the metal connecting piece 2. The two mounting holes 102 are arranged alternately. In use, the mounting position of the metal connecting piece 2 is adjusted according to the internal structure of the battery pack.

[0042] The remaining structures in this embodiment are the same as in Embodiment 1.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A waterproof battery connector, comprising a terminal block (1), wherein a metal connecting piece (2) is disposed in the terminal block (1), and a protective cover (3) is disposed on the top of the terminal block (1), characterized in that: The terminal block (1) includes a base plate (101), the base plate (101) is provided with mounting holes (102) to facilitate the passage of the metal connecting piece (2), a lower surrounding plate (103) is provided around the top of the base plate (101), a lower wire hole (104) is provided on the front side wall of the lower surrounding plate (103), a sealing groove (105) is provided on the top of the lower surrounding plate (103), and a sealing ring (4) is provided in the sealing groove (105). The protective cover (3) includes a cover plate (301), and an upper enclosure plate (302) is provided around the bottom of the cover plate (301). An upper wire hole (303) is provided on the front side wall of the upper enclosure plate (302). The upper wire hole (303) and the lower wire hole (104) correspond to each other to form a complete wire through hole. An insertion protrusion (304) is provided at the bottom of the upper enclosure plate (302). The insertion protrusion (304) is inserted into the sealing groove (105). A shielding edge (305) is provided on the outer side of the insertion protrusion (304). The shielding edge (305) is connected to the outer side wall of the upper enclosure plate (302), and the shielding edge (305) covers and shields the gap formed by the insertion protrusion (304) and the sealing groove (105).

2. The waterproof battery connection terminal according to claim 1, characterized in that: A limiting plate (107) is provided on the inner wall of the mounting hole (102). The limiting plate (107) extends downward at an angle. A limiting hole (201) is provided on the metal connecting piece (2). The metal connecting piece (2) is inserted into the limiting hole (201).

3. The waterproof battery connection terminal according to claim 2, characterized in that: The base plate (101) is provided with two mounting holes (102) to facilitate the passage of the metal connecting piece (2).

4. The waterproof battery connection terminal according to claim 1, characterized in that: A lower wire sleeve (106) is provided at the corresponding position of the outer port of the lower wire hole (104). The lower wire sleeve (106) is connected to the outer wall of the lower enclosure (103). The sealing groove (105) extends to the front end of the lower wire sleeve (106). An upper wire sleeve (306) is provided at the corresponding position of the outer port of the upper wire hole (303). The upper wire sleeve (306) is connected to the outer wall of the upper enclosure (302). The insertion protrusion (304) and the blocking edge (305) both extend to the front end of the upper wire sleeve (306). The lower wrapping sleeve (106) and the upper wrapping sleeve (306) correspond to each other to form a complete wrapping loop.

5. The waterproof battery connection terminal according to claim 4, characterized in that: A lower sealing gasket (401) is provided on the inner wall of the lower cable sleeve (106), and the lower sealing gasket (401) is connected to the sealing ring (4); Each of the upper wrapping sleeves (306) has an upper sealing gasket (402) on its inner wall. The lower sealing gasket (401) and the upper sealing gasket (402) correspond to each other to form a complete sealing sleeve.

6. The waterproof battery connection terminal according to claim 1, characterized in that: The protective cover (3) has a rotating shaft (6) on both the left and right sides. The rotating shaft (6) on both sides is rotatably connected to the U-shaped handle (7) arranged above the protective cover (3). The U-shaped handle (7) has an arc-shaped guide groove (701) on both sides. The side wall of the U-shaped handle (7) has an insertion port (702) at a position corresponding to the upper port of the arc-shaped guide groove (701). The insertion port (702) is connected to the arc-shaped guide groove (701). The left and right side walls of the terminal block (1) are provided with pivot posts (5). The pivot posts (5) enter the arc-shaped guide groove (701) from the insertion port (702) and slide and engage with the arc-shaped guide groove (701). The lower inner wall of the arc-shaped guide groove (701) is provided with a limit protrusion (703).

7. The waterproof battery connection terminal according to claim 6, characterized in that: The U-shaped handle (7) is provided with an elastic plate (9) at its rear end, and the elastic plate (9) is provided with a snap-fit ​​hole (901). The terminal block (1) is provided with a slot (8) at the rear, and a snap-fit ​​protrusion (801) is provided in the slot (8), which engages with the snap-fit ​​hole (901).

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