Through-wall type terminal

Abstract

The utility model provides a wall-through type terminal, relates to electrical connection technical field, including wall-through type terminal and wallboard, the wall-through type terminal is composed of shell right and shell left, shell right is provided on the right side of wallboard, shell left is provided on the left side of wallboard. According to the utility model, the right shell and the left shell are matched with the embedding of the inserting column and the connecting slot through the staggered clamping structure of the connecting tooth sleeve and the fixed tooth plate, so that during installation, the right shell and the left shell are respectively arranged on the two sides of the wallboard, and the connecting tooth sleeve is meshed with the fixed tooth plate, and the inserting column is inserted into the connecting slot; meanwhile, the diversion strip penetrates through the right shell and the left shell to form an electrical path, and on the basis of the structure, wall-through wiring can be rapidly completed without disassembling the box body or damaging the wall, so that the installation efficiency is greatly improved; and the modular splicing mode is also convenient for later maintenance, and the structural integrity of the wallboard or the case is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, and in particular to a through-wall terminal. Background Technology

[0002] Terminal blocks are basic components used to achieve electrical connections. They are usually composed of a conductor and an insulating shell. Their main function is to reliably fix and conduct wires. They are key components for wiring connections and maintenance in electrical systems.

[0003] The existing technology has the following shortcomings:

[0004] In scenarios such as chassis, power distribution cabinets, or building wiring, it is often necessary to connect internal wiring to external wiring. Traditional wiring methods require disassembling the chassis or chiseling through the wall, which is not only inefficient but may also damage the structural integrity. At the same time, the wire fixing methods of some existing terminals are not stable enough, and poor contact is prone to occur under vibration, external pulling force, etc., affecting the reliability and safety of electrical connections. Utility Model Content

[0005] This utility model proposes a through-wall terminal that achieves convenient through-wall installation and stable electrical connection through optimized structural design, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a through-wall terminal, comprising a through-wall terminal and a wall panel, wherein the through-wall terminal consists of a right outer shell and a left outer shell, the right outer shell being disposed on the right side of the wall panel and the left outer shell being disposed on the left side of the wall panel; a right insertion slot is provided at the bottom right side of the right outer shell and a left insertion slot is provided at the bottom left side of the left outer shell; a connecting toothed sleeve is fixedly connected to the bottom left side of the right outer shell and two fixing toothed plates are fixedly connected to the bottom right side of the left outer shell; the right and left outer shells are engaged with each other through the connecting toothed sleeve and the fixing toothed plates; a plug post is fixedly connected to the upper left side of the right outer shell; connecting slots are provided at the upper left and right sides of the outer shell; and a guide strip penetrating through the left and right sides is inserted into the inner surface of the connecting toothed sleeve.

[0007] Preferably, a pressure frame is slidably connected inside the right side of the outer casing, an iron block is snapped into the inner top of the pressure frame, a slotted screw is threaded into the middle of the iron block, the top of the slotted screw extends to the top of the outer casing, and the right end of the guide strip penetrates into the inner side of the pressure frame.

[0008] Preferably, a pressure frame is slidably connected inside the left side of the outer casing, an iron block is snapped into the top of the inner side of the pressure frame, a slotted screw is threaded into the middle of the iron block, the top of the slotted screw extends to the top of the left side of the outer casing, and the left end of the guide strip penetrates to the inner side of the pressure frame.

[0009] Preferably, the teeth of the connecting tooth sleeve and the fixed tooth plate are designed in an interleaved manner.

[0010] Preferably, the guide strip is made of a highly conductive copper alloy and is tin-plated.

[0011] Preferably, the inner left and right sides of the pressure frame are provided with anti-slip texture.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. In this utility model, the right and left outer shells are connected by an interlocking structure of connecting toothed sleeves and fixed toothed plates, and the plug-in post and connecting slot are engaged. During installation, the right and left outer shells are placed on both sides of the wall panel. The engagement of the connecting toothed sleeves and fixed toothed plates, and the insertion of the plug-in post into the connecting slot, achieve a stable splicing of the right and left outer shells. At the same time, the guide strip runs through to form an electrical path. Based on this structure, through-wall wiring can be quickly completed without disassembling the box or damaging the wall, which greatly improves the installation efficiency. The modular splicing method also facilitates later maintenance and does not affect the structural integrity of the wall panel or the chassis.

[0014] 2. In this utility model, the left and right pressure frame, the left flathead screw, and the left iron block, as well as the right and right pressure frame, the right flathead screw, and the right iron block, constitute a wire fixing assembly. The wire is placed under the current-guiding strip inside the left and right pressure frames, respectively. By tightening the left and right flathead screws, the left and right iron blocks slide, causing the left and right pressure frames to tightly press the wire, making the wire adhere tightly to the current-guiding strip. At the same time, the anti-slip texture on the inner side of the pressure frame further increases the friction. This structure can effectively prevent the wire from loosening or falling off due to vibration or external pulling, ensuring the stability of the electrical connection. The tin-plated, highly conductive current-guiding strip is in close contact with the wire, reducing contact resistance and improving the reliability and safety of current transmission. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the through-wall terminal of this utility model;

[0016] Figure 2 This is a schematic diagram of a single structure of the through-wall terminal of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the through-wall terminal of this utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the through-wall type terminal of this utility model.

[0019] Legend: 1. Through-wall terminal; 11. Right side of the outer casing; 12. Left side of the outer casing; 13. Right insertion slot; 14. Left insertion slot; 15. Connecting tooth sleeve; 16. Fixing tooth plate; 17. Plug post; 18. Connecting slot; 19. Guide bar; 110. Left side of flathead screw; 111. Left side of iron block; 112. Left side of wire clamping frame; 113. Right side of flathead screw; 114. Right side of iron block; 115. Right side of wire clamping frame; 2. Wall panel. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution: it includes a through-wall terminal 1 and a wall panel 2. The through-wall terminal 1 is composed of a right outer shell 11 and a left outer shell 12. The right outer shell 11 is located on the right side of the wall panel 2, and the left outer shell 12 is located on the left side of the wall panel 2. A right insertion slot 13 is provided at the bottom right side of the right outer shell 11, and a left insertion slot 14 is provided at the bottom left side of the left outer shell 12. A connecting toothed sleeve 15 is fixedly connected to the bottom left side of the right outer shell 11, and two fixing toothed plates 16 are fixedly connected to the bottom right side of the left outer shell 12. The right outer shell 11 and the left outer shell 12 are engaged with each other through the connecting toothed sleeve 15 and the fixing toothed plates 16. A plug post 17 is fixedly connected to the upper left side of the right outer shell 11, and a connecting slot 18 is provided at the upper right side of the left outer shell 12. A guide strip 19 that runs through the left and right sides is inserted into the inner surface of the connecting toothed sleeve 15.

[0023] The effect achieved by the entire embodiment 1 is as follows: during the installation process, a through hole adapted to the through-wall terminal is pre-drilled on the wall panel 2, the left 12 of the outer casing passes through the through hole from the left side of the wall panel 2, so that the fixing tooth plate 16 extends out of the right side surface of the wall panel 2; then the right 11 of the outer casing approaches from the right side of the wall panel 2, so that the connecting tooth sleeve 15 and the fixing tooth plate 16 interlock and engage, while the plug post 17 is precisely inserted into the connecting slot 18. The interlocking tooth design of the connecting sleeve 15 and the fixed tooth plate 16 generates dual lateral and longitudinal limiting forces during engagement. Combined with the tight fit of the plug post 17 and the connecting slot 18, this ensures a secure connection between the right 11 and left 12 of the housing without the need for additional tools or adhesive. The guide strip 19 passes through the connecting sleeve 15 during the connection process, extending to predetermined positions inside the left 12 and right 11 of the housing, respectively, laying the foundation for subsequent electrical connections. Through the modular quick-installation structure of the connecting sleeve 15 and the fixed tooth plate 16, and the plug post 17 and the connecting slot 18, rapid and stable installation of the through-wall terminal on the wall panel 2 is achieved. Compared to traditional wiring methods that require damage to the wall or enclosure, this installation process requires no complex tools or professional skills, significantly shortening construction time and causing no damage to the wall panel 2 or the enclosure structure, while ensuring the mechanical strength and stability of the terminal.

[0024] Example 2: As Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a right pressure frame right 115 is slidably connected inside the right 11 of the outer shell; an iron block right 114 is snapped into the inner top of the right 115 of the pressure frame; a slotted screw right 113 is threaded into the middle of the iron block right 114; the top of the slotted screw right 113 extends to the top of the right 11 of the outer shell; the right end of the guide strip 19 penetrates to the inner side of the right 115 of the pressure frame; a left pressure frame left 112 is slidably connected inside the left 12 of the outer shell; the left pressure frame left 11... The top of the inner side of 2 is fitted with an iron block left 111. The middle of the iron block left 111 is threaded with a slotted screw left 110. The top of the slotted screw left 110 extends to the top of the outer shell left 12. The left end of the guide strip 19 penetrates to the inner side of the wire frame left 112. The teeth of the connecting tooth sleeve 15 and the fixing tooth plate 16 are designed in an interlaced manner. The guide strip 19 is made of highly conductive copper alloy and is tin-plated. The inner sides of the wire frame left 112 and the wire frame right 115 are provided with anti-slip texture.

[0025] The overall effect of Embodiment 2 is as follows: When a wire needs to be connected, the external wire is inserted into the inside of the outer casing 11 from the right insertion slot 13, so that the end of the wire covers the upper right end of the guide strip 19 and is placed inside the wire clamping frame 115. A screwdriver is used to rotate the flathead screw 113 clockwise. As the flathead screw 113 is turned downwards, it causes the iron block 114 to press down vertically. The iron block 114 pushes the wire clamping frame 115 to tightly press the wire onto the guide strip 19. Because the inner side of the wire clamping frame 115 has anti-slip textures, it can effectively increase the friction with the wire sheath, preventing the wire from slipping. Simultaneously, the tin-plated high conductivity... The electrical guide strip 19 fits tightly against the wire to form a low-resistance electrical connection. Similarly, the internal wire is securely connected to the left end of the guide strip 19 through the cooperation of the left insertion slot 14, the left wire clamping frame 112, the left iron block 111, and the left slotted screw 110. The wire fixing assembly with mechanical clamping and anti-slip design, combined with the highly conductive guide strip 19, achieves a reliable electrical connection between the wire and the terminal. This structure can not only resist the influence of environmental factors such as vibration and external pulling force to ensure long-term stable connection of the wire, but also reduce contact resistance through tin plating, reduce power loss, and improve the safety and reliability of the electrical system.

[0026] The working principle of the entire device is as follows: In terms of structural fixation, the right 11 and left 12 of the outer shell are connected by the interlocking of the connecting tooth sleeve 15 and the fixing tooth plate 16, and the insertion post 17 and the connecting slot 18 to form a stable through-wall installation structure. This structure firmly fixes the terminal to the wall plate 2 while maintaining the integrity of the wall plate 2 and avoiding damage to the wall caused by traditional wiring methods.

[0027] In terms of electrical conduction, the wires are tightly bonded to both ends of the current guide strip 19 by the mechanical compression of the left 112 and right 115 of the wire clamping frame. The current guide strip 19 is made of highly conductive copper alloy and tin-plated. The tin layer on its surface can prevent oxidation and enhance the tightness of contact with the wires, greatly reducing contact resistance and ensuring efficient current transmission. When the external circuit and the internal circuit are respectively connected to the wires on both sides of the terminal, the current is conducted to the current guide strip 19 through the wires, and then passes through the wall panel 2 through the current guide strip 19 to realize the conduction of the internal and external circuits, thereby completing the electrical connection process. At the same time, the anti-slip texture on the inside of the wire clamping frame further enhances the wire fixing effect, ensuring the stability of the electrical connection in complex environments and realizing safe and reliable power transmission.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A through-wall terminal block, characterized in that: The device includes a through-wall terminal (1) and a wall panel (2). The through-wall terminal (1) consists of a right outer casing (11) and a left outer casing (12). The right outer casing (11) is located on the right side of the wall panel (2), and the left outer casing (12) is located on the left side of the wall panel (2). A right insertion slot (13) is provided at the bottom right side of the right outer casing (11), and a left insertion slot (14) is provided at the bottom left side of the left outer casing (12). A connector is fixedly connected to the bottom left side of the right outer casing (11). Connecting sleeve (15), two fixed tooth plates (16) are fixedly connected to the bottom right side of the outer shell left (12), the outer shell right (11) and the outer shell left (12) are engaged with each other by connecting sleeve (15) and fixed tooth plates (16); a plug-in post (17) is fixedly connected to the upper left side of the outer shell right (11), a connecting slot (18) is opened on the upper right side of the outer shell left (12), and a guide strip (19) that runs through the left and right sides is inserted into the inner surface of the connecting sleeve (15).

2. A through-wall terminal according to claim 1, characterized in that: The right side of the outer casing (11) is slidably connected to the inside of the right pressure frame (115). The top of the inner side of the right pressure frame (115) is fitted with an iron block (114). The middle part of the iron block (114) is threaded with a slotted screw (113). The top of the slotted screw (113) extends to the top of the right side of the outer casing (11). The right end of the guide strip (19) penetrates to the inside of the right pressure frame (115).

3. A through-wall terminal according to claim 2, characterized in that: The left side of the outer casing (12) is slidably connected to the left side of the wire frame (112). The top of the left side of the wire frame (112) is engaged with the left side of the iron block (111). The middle part of the left side of the iron block (111) is threaded with the left side of the slotted screw (110). The top of the left side of the slotted screw (110) extends to the top of the left side of the outer casing (12). The left end of the guide strip (19) penetrates to the inside of the left side of the wire frame (112).

4. A through-wall terminal according to claim 1, characterized in that: The teeth of the connecting tooth sleeve (15) and the fixed tooth plate (16) are designed in an interlaced manner.

5. A through-wall terminal according to claim 1, characterized in that: The guide strip (19) is made of highly conductive copper alloy and is tin-plated.

6. A through-wall terminal according to claim 3, characterized in that: The inner sides of the left (112) and right (115) of the pressure frame are provided with anti-slip texture.

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