Waterproof terminal structure

By using waterproof rubber rings, pressure rings, and sealing gaskets in the terminals, the problem of water ingress and short circuits in outdoor environments has been solved, achieving higher waterproof performance and safety.

CN224502371UActive Publication Date: 2026-07-14KEBEN ELECTRIC (DONGGUAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEBEN ELECTRIC (DONGGUAN) CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-14

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    Figure CN224502371U_ABST
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Abstract

The utility model discloses a waterproof wiring terminal structure, including base, the upper end of base is open -ended structure, and the left and right ends of the front and back two side faces of base are respectively provided with the opening, and the rear end of opening is fixedly connected with the connecting seat, the outside middle part of connecting seat is provided with the bolt bottom hole corresponding with opening, and the inside middle part of base is fixedly connected with the shock attenuation board of U shape structure, and the inside of shock attenuation board is fixedly connected with the conducting seat, and the left and right ends of conducting seat are respectively provided with the wire insertion hole, and the upper end of wire insertion hole is provided with the screw hole, and the inside screw thread connection of screw hole has the compression bolt, and the left and right sides of base are respectively provided with the U groove corresponding with wire insertion hole, and the upper end of base is clamped with the upper cover, and the wiring terminal can effectively seal the joint part when using, avoids the short circuit phenomenon of wiring terminal end under the water of house or special environment, avoids the abnormality of electrical equipment, and protects the electrical equipment simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically a waterproof terminal block structure. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections and belong to the category of connectors. With the development of the electronics industry, the application range of terminal blocks is increasing, and the types are also increasing. A common terminal block is a metal piece sealed in insulating plastic, with holes at both ends for inserting wires, and the wires are tightened or loosened by screws. With terminal blocks, two wires can be connected and disconnected at any time without soldering or winding them together, making the connection convenient and quick.

[0003] In certain special applications of electrical equipment (such as electric vehicle drives and high-current equipment used outdoors), there may be situations where water ingress can cause short circuits in the terminals, leading to malfunctions or even damage to the electrical equipment using the terminals. To address this, we propose a waterproof terminal structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a waterproof terminal block structure. This terminal block can effectively seal the joint part during use, prevent water from entering the terminal block in outdoor or special environments and causing short circuits, prevent electrical equipment from malfunctioning, and protect the electrical equipment. It can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof terminal block structure, including a base, the upper end of which is an open structure, openings at the left and right ends of the front and rear sides of the base, and a connecting seat fixedly connected to the rear end of the openings, a bolt bottom hole corresponding to the openings at the middle of the outer side of the connecting seat, a U-shaped shock-absorbing plate fixedly connected to the middle of the interior of the base, and a conductive seat fixedly connected to the inner side of the shock-absorbing plate, a wire insertion hole at the left and right ends of the conductive seat, and a screw hole at the upper end of the wire insertion hole, with a clamping bolt threaded into the screw hole, U-shaped grooves corresponding to the wire insertion holes at the left and right sides of the base, and a top cover snapped onto the upper end of the base, with through holes at the left and right ends of the front and rear sides of the top cover, and slots corresponding to the U-shaped grooves at the left and right sides of the top cover;

[0006] Specifically, the perforations on the side surface of the top cover are fixedly connected to the connecting seat by connecting bolts.

[0007] Furthermore, it also includes a waterproof rubber ring and a pressure ring. The waterproof rubber ring is engaged with the inside of the U-shaped groove opened on the side of the base, and the pressure ring is engaged with the inside of the groove opened on the side of the top cover, with the waterproof rubber ring and the pressure ring corresponding to each other. The waterproof rubber ring and the pressure ring can seal the part where the outer shell contacts the cable sheath, preventing water leakage at the gaps from affecting the waterproof performance of the terminal block.

[0008] Furthermore, it also includes sealing gaskets. The upper surface of the base has mounting grooves on the outer sides of both the front and rear ends, and sealing gaskets are fixedly connected inside the mounting grooves. The outer surface of the sealing gaskets is in contact with the inner surface of the top cover. The sealing gaskets can effectively improve the sealing performance of the gaps in the terminals, prevent water from seeping into the joints and affecting the waterproof performance of the terminals, and make the use of the terminals safer.

[0009] Furthermore, the damping plate is made of flexible insulating material, and its surface is coated with a flame-retardant coating; the damping plate can effectively improve the stability of the terminal block during use, and the flame-retardant and insulating damping plate can make the use of the terminal block safer.

[0010] Furthermore, both the base and the top cover are made of insulating and flame-retardant material, and the conductive base and the clamping bolts are made of brass. The insulating and flame-retardant outer shell makes the use of the terminal block safer, and the brass conductive parts can prevent the phenomenon of internal combustion and power failure due to increased resistance, thus making the use of the terminal block safer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This waterproof terminal structure has the following advantages:

[0012] 1. This terminal block effectively seals the connector during use, preventing short circuits caused by water ingress in outdoor or special environments, thus protecting electrical equipment from malfunctions.

[0013] 2. The waterproof rubber ring and pressure ring can seal the parts where the outer shell contacts the cable sheath, preventing water leakage from gaps and affecting the waterproof performance of the terminals.

[0014] 3. The sealing gasket can effectively improve the sealing performance of the gaps in the terminal blocks, prevent water seepage at the joints from affecting the waterproof performance of the terminal blocks, and make the use of the terminal blocks safer. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the upper cross-sectional structure of this utility model.

[0018] In the diagram: 1. Base, 2. Top cover, 3. Waterproof rubber ring, 4. Pressure ring, 5. Sealing gasket, 6. Connecting seat, 7. Shock absorber plate, 8. Conductive seat, 9. Tightening bolt. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 This embodiment provides a technical solution: a waterproof terminal block structure, including a base 1, the upper end of the base 1 is an open structure, the front and rear sides of the base 1 are provided with openings at the left and right ends respectively, and the rear end of the openings is fixedly connected to a connecting seat 6, the outer middle of the connecting seat 6 is provided with a bolt bottom hole corresponding to the opening, the inner middle of the base 1 is fixedly connected with a U-shaped shock-absorbing plate 7, and the inner side of the shock-absorbing plate 7 is fixedly connected with a conductive seat 8, the left and right ends of the conductive seat 8 are provided with insertion holes respectively, and the upper end of the insertion hole is provided with a screw hole, the screw hole is threaded with a clamping bolt 9, the left and right sides of the base 1 are provided with U-shaped grooves corresponding to the insertion holes respectively, the upper end of the base 1 is snapped with a top cover 2, and the front and rear sides of the top cover 2 are provided with through holes at the left and right ends respectively, and the left and right sides of the top cover 2 are provided with slots corresponding to the U-shaped grooves respectively.

[0021] The perforation on the side surface of the top cover 2 is fixedly connected to the connecting seat 6 by connecting bolts.

[0022] In this embodiment, a waterproof rubber ring 3 and a pressure ring 4 are also included. The waterproof rubber ring 3 is snapped into the U-shaped groove opened on the side of the base 1, and the pressure ring 4 is snapped into the slot opened on the side of the top cover 2. The waterproof rubber ring 3 and the pressure ring 4 correspond to each other. The waterproof rubber ring 3 and the pressure ring 4 can seal the part where the outer shell contacts the cable sheath, so as to prevent water leakage at the gaps and affect the waterproof performance of the terminal block.

[0023] In this embodiment, a sealing gasket 5 is also included. The upper surface of the base 1 has mounting grooves on the outer sides of the front and rear ends, and the sealing gasket 5 is fixedly connected inside the mounting grooves. The outer surface of the sealing gasket 5 is in contact with the inner surface of the upper cover 2. The sealing gasket 5 can effectively improve the sealing performance of the gaps in the wiring terminals, prevent water from seeping into the joints and affecting the waterproof performance of the wiring terminals, and make the use of the wiring terminals safer.

[0024] In this embodiment, the damping plate 7 is made of flexible insulating material, and the surface of the damping plate 7 is coated with a flame-retardant coating; the damping plate 7 can effectively improve the stability of the terminal block during use, and the flame-retardant and insulating damping plate 7 can make the use of the terminal block safer.

[0025] In this embodiment, the base 1 and the top cover 2 are both made of insulating and flame-retardant material, and the conductive base 8 and the clamping bolt 9 are both made of brass. The insulating and flame-retardant outer shell makes the use of the terminal block safer, and the brass conductive parts can prevent the phenomenon of internal combustion and power failure due to increased resistance, thus making the use of the terminal block safer.

[0026] The working principle of the waterproof terminal block structure provided by this utility model is as follows: Insert the corresponding wire end into the insertion hole opened on the side of the conductive base 8, and then use the clamping bolt 9 to clamp the wire end. After the wire end is fixed, the upper cover 2 is clipped on the upper side of the base 1, so that the waterproof rubber ring 3 and the pressure ring 4 clamp the cable sheath and seal the gap. Then, use the external connecting bolt to lock the base 1 and the upper cover 2 to complete the wiring.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waterproof terminal block structure, characterized in that: The base (1) is an open structure at the top. Openings are provided on the left and right sides of the front and rear sides of the base (1), and a connecting seat (6) is fixedly connected to the rear end of the opening. A bolt bottom hole corresponding to the opening is provided in the middle of the outer side of the connecting seat (6). A U-shaped shock-absorbing plate (7) is fixedly connected in the middle of the interior of the base (1), and a conductive seat (8) is fixedly connected to the inner side of the shock-absorbing plate (7). A wire insertion hole is provided on the left and right sides of the conductive seat (8), and a screw hole is provided at the top of the wire insertion hole. A clamping bolt (9) is connected to the thread inside the screw hole. A U-shaped groove corresponding to the wire insertion hole is provided on the left and right sides of the base (1). A top cover (2) is snapped onto the top of the base (1), and through holes are provided on the left and right sides of the front and rear sides of the top cover (2). A slot corresponding to the U-shaped groove is provided on the left and right sides of the top cover (2). Among them, the perforation opened on the side surface of the top cover (2) is fixedly connected to the connecting seat (6) by connecting bolts.

2. The waterproof terminal block structure according to claim 1, characterized in that: It also includes a waterproof rubber ring (3) and a pressure ring (4). The waterproof rubber ring (3) is engaged with the inside of the U-shaped groove opened on the side of the base (1), and the pressure ring (4) is engaged with the inside of the slot opened on the side of the top cover (2). The waterproof rubber ring (3) and the pressure ring (4) correspond to each other.

3. The waterproof terminal structure according to claim 1, characterized in that: It also includes a sealing gasket (5). The upper surface of the base (1) has mounting grooves on the front and rear outer sides, and the mounting grooves are fixedly connected to the sealing gaskets (5). The outer surface of the sealing gasket (5) is in contact with the inner surface of the cover (2).

4. The waterproof terminal block structure according to claim 1, characterized in that: The damping plate (7) is made of flexible insulating material, and the surface of the damping plate (7) is coated with a flame-retardant coating.

5. The waterproof terminal block structure according to claim 1, characterized in that: The base (1) and the top cover (2) are both made of insulating and flame-retardant materials, and the conductive base (8) and the clamping bolt (9) are both made of brass.