High current transfer terminal for low voltage distribution equipment

Abstract

A high-current transfer terminal for low-voltage power distribution equipment belongs to the technical field of electrical connection components for low-voltage power distribution systems. It includes a base, with an incoming line block cavity on the upward-facing side of the base, containing an incoming line block seat; an incoming terminal mechanism and an outgoing line block. The incoming terminal mechanism includes an incoming line block and first and second fixed incoming line terminals. The rear end of the incoming line block is fitted and fixed to the incoming line block seat, and the front end of the incoming line block extends to the front of the incoming line block cavity. The first fixed incoming line terminal, along with the upper rear end of the incoming line block, is fixed to the upper part of the incoming line block seat. The second fixed incoming line terminal, along with the front end of the incoming line block, is fixed to the incoming line block cavity. The front end of the outgoing line block is fixed to the upper rear end of the incoming line block and the upper part of the incoming line block seat. The rear end of the outgoing line block is configured as a horizontal cantilever end. Advantages: Reliable electrical connection; meets the requirements for enhanced adaptability to harsh environments in ships; saves space and improves the space utilization rate of low-voltage power distribution equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical connection components for low-voltage power distribution systems, and specifically relates to a high-current adapter terminal for low-voltage power distribution equipment. Background Technology

[0002] Low-voltage power distribution equipment, often referred to as the "last mile" of the power system, is widely used in various fields, such as data centers, new energy and infrastructure, industrial manufacturing, commercial buildings, and urban complexes. Especially in certain specific scenarios, such as large ships, oil tankers, LNG carriers, and marine engineering projects, which integrate complex systems to ensure power, navigation, and living conditions, the power distribution system is the lifeline for maintaining the operation of all systems. Therefore, in the aforementioned marine sector, the technical requirements for low-voltage power distribution equipment are extremely stringent. This can be evidenced by at least the following aspects, not limited to those listed: First, high reliability. Because ships are far from land, repair and / or emergency rescue are extremely difficult once the power system fails. Therefore, the equipment and internal components must have extremely high reliability and an extremely long service life. Second, adaptability to extreme environments. Because ships sail at sea, internal equipment must have a high degree of adaptability to extreme external environments, such as the salt spray, high temperature, and high humidity in the marine air, which can cause corrosion and aging of equipment. In addition, the continuous vibrations and occasional mechanical shocks caused by ship operation can lead to loosening of the connections of internal components; thirdly, there is the issue of space. Ship design usually pursues the maximization of space utilization, and the layout of its internal power distribution equipment is compact. How to safely arrange high-current lines and ensure reliable electrical connections within a limited space or volume has always been an important technical challenge.

[0003] High-current terminals are key components within the aforementioned internal device category, and are also essential basic elements of the aforementioned low-voltage electrical equipment. Therefore, it is of great significance to explore high-current terminals that can ensure excellent reliability, meet the adaptability requirements of ships to special harsh environments, and save space. The technical solution described below arose in this context. Utility Model Content

[0004] The objective of this invention is to provide a high-current transfer terminal for low-voltage power distribution equipment that facilitates the electrical connection of multiple incoming cables to the same incoming busbar using a parallel busbar connection method, and enables power supply through a single outgoing cable from a single outgoing busbar electrically connected to the incoming busbar. This significantly reduces the number of connection points and correspondingly reduces the failure rate, thereby ensuring excellent reliability. It also helps to reduce the vulnerability to external environmental attacks from the source, thus enhancing the adaptability of ships to special harsh environments. Furthermore, it demonstrates good integration and outstanding modularity, resulting in significant space savings.

[0005] The present invention achieves its objective as follows: a high-current transfer terminal for low-voltage power distribution equipment includes a base, with an inlet bus seat cavity spaced on the upward-facing side of the base, and an inlet bus seat formed within the inlet bus seat cavity; an inlet terminal mechanism, equal in number to the number of inlet bus seats and cooperating with the inlet bus seats, and an outlet bus connected to the inlet terminal mechanism, disposed within the inlet bus seat cavity; characterized in that: the inlet terminal mechanism includes an inlet bus, a first inlet fixed terminal, and a second inlet fixed terminal, and the rear end of the inlet bus is connected to the inlet bus seat. The cable is fitted and fixed to the cable tray seat. The front end of the cable tray extends forward from the bottom of the cable tray seat to the front of the cable tray seat cavity. The first cable fixing terminal is fixed to the upper part of the cable tray seat along with the upper part of the rear end of the cable tray at the position corresponding to the upper part of the rear end of the cable tray. The second cable fixing terminal is fixed to the cable tray seat cavity along with the front end of the cable tray at the position corresponding to the upper part of the front end of the cable tray. The front end of the cable tray is fixed to both the upper part of the rear end of the cable tray and the upper part of the cable tray seat. The rear end of the cable tray is configured as a horizontal cantilever end that extends rearward.

[0006] In a specific embodiment of this utility model, a cable tray cavity partition plate is formed from front to back along the length direction of the cable tray cavity on the upward side of the base and between each pair of adjacent cable tray cavities. A cable tray cavity fixing wall extends upward on the upper part of the cable tray cavity partition plate and at the position corresponding to the side of the cable tray. The cable tray and the opposite side of the cable tray fixing wall form an integral structure.

[0007] In another specific embodiment of this utility model, a cable insertion gap is formed between the bottom surface of the cable tray and the opposite side of the bottom wall of the cable tray cavity.

[0008] In another specific embodiment of this utility model, the rear end of the input cable bar is folded upward to form a longitudinal folded edge with a height adapted to the height of the input cable bar seat. Above this longitudinal folded edge, a horizontal folded edge with a length adapted to the length of the input cable bar seat is folded forward in a horizontal state. The longitudinal folded edge of the input cable bar abuts against and is fixed to the rear side of the input cable bar seat, while the horizontal folded edge covers the upper surface of the input cable bar seat and extends along with the front end of the output cable bar and the first input cable bar. The fixed terminal is fixed to the cable tray seat. The front end of the cable tray extends forward through the cable tray insertion gap to the top of the cable tray seat cavity and is fixed to the bottom wall of the cable tray seat cavity along with the second fixed terminal. The cable tray is fixed to the cable tray seat at the position corresponding to the bottom surface of the cable tray seat. A longitudinal flange fixing screw hole is provided on the longitudinal flange of the cable tray, and the longitudinal flange fixing screw is fixed to the rear side of the cable tray seat at the position corresponding to the longitudinal flange fixing screw hole.

[0009] In another specific embodiment of this utility model, the space formed by the rear end of the cable tray, the longitudinal folded edge of the cable tray, and the horizontal folded edge of the cable tray together constitutes a U-shaped enveloping cavity for the cable tray seat to enclose the upper and lower surfaces and the rear side of the cable tray seat.

[0010] In another specific embodiment of this utility model, the first incoming line fixing terminal includes a first incoming cable core bare crimp end, a first bare crimp end electrical connection fixing plate, a second incoming cable core bare crimp end, and a second bare crimp end electrical connection fixing plate. The rear end of the first incoming cable core bare crimp end is welded to the front end of the first bare crimp end electrical connection fixing plate. The front end of the first incoming cable core bare crimp end extends forward to form a horizontal cantilever end. A first bare crimp end electrical connection fixing plate fixing screw hole is opened at the rear end of the first bare crimp end electrical connection fixing plate, and a first bare crimp end electrical connection fixing plate fixing is provided on the first bare crimp end electrical connection fixing plate fixing screw hole. The screw, the second incoming cable core bare crimp end corresponds to the lower part of the first incoming cable core bare crimp end, and the rear end of the second incoming cable core bare crimp end is welded to the front end of the second bare crimp end electrical connection fixing plate. The front end of the second incoming cable core bare crimp end extends forward to form a horizontal cantilever end. A second bare crimp end electrical connection fixing plate fixing screw hole is opened at the rear end of the second bare crimp end electrical connection fixing plate, which corresponds to the fixing screw hole of the first bare crimp end electrical connection fixing plate. The fixing screw of the first bare crimp end electrical connection fixing plate passes through the fixing screw hole of the second bare crimp end electrical connection fixing plate and the horizontal fold of the incoming cable bus and the front of the incoming cable bus seat. The first end is fixed to the upward-facing side; the second incoming cable fixing terminal includes a third incoming cable core bare crimping end, a third bare crimping end electrical connection fixing plate, a fourth incoming cable core bare crimping end, and a fourth bare crimping end electrical connection fixing plate. The rear end of the third incoming cable core bare crimping end is welded to the front end of the third bare crimping end electrical connection fixing plate. The front end of the third incoming cable core bare crimping end extends forward to form a horizontal cantilever end. A third bare crimping end electrical connection fixing plate fixing screw hole is opened at the rear end of the third bare crimping end electrical connection fixing plate, and a third bare crimping end electrical connection fixing plate fixing screw is provided in the third bare crimping end electrical connection fixing plate fixing screw hole. The fourth incoming cable... The bare crimped end of the cable core corresponds to the lower part of the bare crimped end of the third incoming cable core, and the rear end of the bare crimped end of the fourth incoming cable core is welded to the front end of the electrical connection fixing plate of the fourth bare crimped end. The front end of the bare crimped end of the fourth incoming cable core extends forward to form a horizontal cantilever end. A fixing screw hole for the electrical connection fixing plate of the fourth bare crimped end is opened at the rear end of the electrical connection fixing plate of the fourth bare crimped end, which corresponds to the fixing screw hole of the electrical connection fixing plate of the third bare crimped end. The fixing screw of the electrical connection fixing plate of the third bare crimped end passes through the fixing screw hole of the electrical connection fixing plate of the fourth bare crimped end and is fixed to the front end of the cable busbar and the front end of the cable busbar seat cavity facing upward.

[0011] In a further specific embodiment of this utility model, a screw through hole for the horizontal folded edge of the input cable is provided on the horizontal folded edge of the input cable and at a position corresponding to the fixing screw hole of the second bare crimping end electrical connection fixing plate. A bare crimping end electrical connection plate fixing screw connecting nut is embedded in front of the upper surface of the input cable seat and at a position corresponding to the screw through hole of the horizontal folded edge of the input cable. The fixing screw of the first bare crimping end electrical connection fixing plate passes through the screw through hole of the horizontal folded edge of the input cable and is fixed to the fixing screw connecting nut of the bare crimping end electrical connection plate. At the front end of the inlet busbar, a third bare crimping terminal electrical connection fixing plate fixing screw through hole is provided at the position corresponding to the fixing screw hole of the fourth bare crimping terminal electrical connection fixing plate. A bare crimping terminal electrical connection fixing plate fixing screw mating nut is embedded on the bottom wall of the inlet busbar seat cavity of the base at the position corresponding to the third bare crimping terminal electrical connection fixing plate fixing screw through hole. The third bare crimping terminal electrical connection fixing plate fixing screw passes through the third bare crimping terminal electrical connection fixing plate fixing screw through hole and is fixed with the bare crimping terminal electrical connection fixing plate fixing screw mating nut.

[0012] In a further specific embodiment of this utility model, a stud sleeve hole is provided at the bottom of the cable tray seat, and at both the front and rear ends. A stud sleeve is inserted into the stud sleeve hole. A cable tray middle fixing screw hole is provided in the middle of the cable tray, corresponding to the stud sleeve hole. A cable tray middle fixing screw is provided at the position corresponding to the cable tray middle fixing screw hole. The middle part of the cable tray seat cavity in the length direction and at the position corresponding to the bottom of the cable tray seat is formed as a base hollow cavity communicating with the outside. The cable tray middle fixing screw is screwed upward into the stud sleeve at the position corresponding to the base hollow cavity.

[0013] In another specific embodiment of this utility model, a front-end fixing hole is provided at the front end of the cable outlet, and a front-end fixing screw is provided in the front-end fixing hole. A middle fixing screw hole is provided in the middle of the cable outlet, and a middle fixing screw is provided at the position corresponding to the middle fixing screw hole. An electrical connection hole for the cable core is provided at the rear end of the cable outlet. A front-end fixing screw hole is provided on the horizontal folded edge of the cable inlet, and a front-end fixing screw hole is provided on the horizontal folded edge of the cable inlet, and a fixing screw hole is provided on the horizontal folded edge of the cable inlet, and a fixing screw hole is provided on the horizontal folded edge of the cable inlet, and a fixing screw hole is provided on the horizontal folded edge of the cable inlet, and a fixing screw hole is provided on the horizontal folded edge of the cable inlet, at the position corresponding to the middle fixing screw hole of the cable outlet. A middle fixing screw sleeve is added to the upper part of the cable tray seat at the position of the end fixing screw hole. A rear end fixing screw sleeve is embedded at the rear end of the upper surface of the cable tray seat and at the position corresponding to the fixing screw hole of the horizontal folded edge of the cable tray. The front end fixing screw of the cable tray passes through the front end fixing hole of the cable tray and the front end fixing screw hole of the horizontal folded edge of the cable tray in sequence and is screwed into the middle fixing screw sleeve of the upper part of the cable tray seat to fix the front end of the cable tray together with the middle part of the horizontal folded edge of the cable tray to the middle part of the surface of the cable tray seat. At the same time, the middle fixing screw of the cable tray passes through the middle fixing screw hole of the cable tray and the fixing screw hole of the horizontal folded edge of the cable tray in sequence and is screwed into the rear end fixing screw sleeve of the upper part of the cable tray seat to fix the middle part of the cable tray together with the rear end of the horizontal folded edge of the cable tray to the rear end of the upper surface of the cable tray seat.

[0014] In another specific embodiment of this utility model, an inlet busbar isolation plate slot is provided on the front side of the inlet busbar seat cavity partition plate, and an inlet busbar fixing wall front slot is provided on the front side of the inlet busbar seat fixing wall. The inlet busbar isolation plate slot and the inlet busbar fixing wall front slot correspond to and communicate with each other. An inlet busbar isolation plate is inserted into both the inlet busbar isolation plate slot and the inlet busbar fixing wall front slot. The cross-sectional shape of both the inlet busbar isolation plate slot and the inlet busbar fixing wall front slot is C-shaped. An inlet busbar isolation plate guide pin is formed at the upper and lower parts of the rear side of the inlet busbar isolation plate in the height direction. The rear side of the inlet busbar isolation plate in the height direction is inserted into the inlet busbar fixing wall front slot and the inlet busbar seat cavity partition plate in a top-to-bottom insertion manner. The isolation plate slot is inserted and fitted; an outlet isolation plate slot is provided on the rear side of the inlet bus seat cavity partition plate, and an inlet bus seat fixing wall rear slot is provided on the rear side of the inlet bus seat fixing wall. The outlet isolation plate slot corresponds to and communicates with the inlet bus seat fixing wall rear slot. An outlet isolation plate is inserted into both the outlet isolation plate slot and the inlet bus seat fixing wall rear slot. The cross-sectional shape of both the outlet isolation plate slot and the inlet bus seat fixing wall rear slot is C-shaped. An outlet isolation plate guide pin is formed on the upper and lower parts of the front side of the outlet isolation plate in the height direction. The front side of the outlet isolation plate in the height direction is inserted and fitted into the inlet bus seat fixing wall rear slot and the outlet isolation plate slot in a top-to-bottom insertion manner.

[0015] The technical advantages of this utility model are as follows: Because the first incoming cable fixing terminal is fixed at the upper rear end of the incoming cable bar, together with the upper rear end of the incoming cable bar and the upper part of the incoming cable bar seat; because the second incoming cable fixing terminal is fixed at the upper front end of the incoming cable bar, together with the front end of the incoming cable bar and the incoming cable bar seat cavity; and because the front end of the outgoing cable bar is simultaneously fixed to the upper rear end of the incoming cable bar and the upper part of the incoming cable bar seat, and the rear end of the outgoing cable bar is configured as a rearward-extending horizontal cantilever end for connecting outgoing cables, this achieves the effect of electrically connecting multiple incoming cables to the same incoming cable bar using a parallel busbar connection method, allowing multiple incoming cables to converge into a single outgoing cable connection component. The outlet busbar of this invention significantly reduces the number of electrical connection points, thus ensuring excellent electrical connection reliability. Because each electrical connection point is a potential source of loosening, corrosion, overheating, etc., this invention achieves this by significantly reducing the number of connection points. Its integrated busbar structure minimizes the number of connection points compared to series connections, providing excellent environmental adaptability and making it highly suitable for meeting the enhanced adaptability requirements of ships to harsh environments. Furthermore, the base, incoming terminal mechanism, and outlet busbar have a high degree of integration and modular design, significantly saving space and improving the space utilization of low-voltage power distribution equipment. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the present utility model; Figure 2 for Figure 1 The diagram shows a detailed structural diagram of the inlet terminal mechanism and the outlet busbar.

[0017] In the diagram: 1. Base; 11. Cable tray cavity; 111. Cable tray seat; 1111. Cable tray insertion gap; 1112. Bare crimp terminal electrical connection plate fixing screw connecting nut; 1113. Stud sleeve hole; 11131. Stud sleeve; 1114. Upper middle fixing screw sleeve of cable tray seat; 1115. Upper rear end fixing screw sleeve of cable tray seat; 112. Bare crimp terminal electrical connection plate fixing screw mating nut; 12. Cable tray cavity partition plate; 121. Cable tray seat fixing wall; 1211. Front slot of cable tray fixing wall; 1212. Rear slot of cable tray fixing wall; 122. Cable tray isolation plate slot; 13. Base hollow cavity; 14. Left side wall of base; 15. Right side wall of base; 2. Cable terminal mechanism; 21. Cable tray; 211. Longitudinal fold of the cable tray, 2111. Screw hole for fixing the longitudinal fold of the cable tray, 21111. Screw for fixing the longitudinal fold of the cable tray, 212. Horizontal fold of the cable tray, 2121. Screw through hole for the horizontal fold of the cable tray, 2122. Screw hole for fixing the front end of the horizontal fold of the cable tray, 2123. Screw hole for fixing the horizontal fold of the cable tray, 213. U-shaped envelope cavity of the cable tray seat, 214. Screw through hole for fixing the electrical connection fixing plate of the third bare crimp terminal, 215. Screw hole for fixing the middle of the cable tray, 2151. Screw for fixing the middle of the cable tray, 22. First cable tray fixing terminal, 221. Bare crimp terminal of the first cable tray core, 222. Electrical connection fixing plate of the first bare crimp terminal, 2221. Screw hole for fixing the electrical connection fixing plate of the first bare crimp terminal, 22211. 22212. First bare crimp terminal electrical connection fixing plate fixing screw; 223. Second incoming cable core bare crimp terminal; 2231. Extension transition ear; 224. Second bare crimp terminal electrical connection fixing plate; 2241. Second bare crimp terminal electrical connection fixing plate fixing screw hole; 23. Second incoming fixing terminal; 231. Third incoming cable core bare crimp terminal; 232. Third bare crimp terminal electrical connection fixing plate; 2321. Third bare crimp terminal electrical connection fixing plate fixing screw hole; 23211. Third bare crimp terminal electrical connection fixing plate fixing screw; 23212. Second washer; 233. Fourth incoming cable core bare crimp terminal; 2331. Connection transition ear; 234. Fourth bare crimp terminal electrical connection fixing plate; 2341. Fourth bare crimp terminal electrical connection fixing plate fixing screw hole; 3. Outgoing cable busbar; 31. 311. Front end fixing hole of cable outlet; 32. Middle fixing screw hole of cable outlet; 321. Middle fixing screw of cable outlet; 33. Electrical connection hole of cable core of cable outlet; 4. Inlet cable outlet isolation plate; 41. Guide pin of inlet cable outlet isolation plate; 5. Outlet cable outlet isolation plate. Detailed Implementation

[0018] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0019] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on the current position. Figure 1 The location and state of the object are taken as examples, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0020] Please see Figure 1 The image shows a base 1, on which an inlet cable tray cavity 11 is provided on the upward-facing side. An inlet cable tray 111 (also called an "inlet / outlet cable tray connector") is formed in the inlet cable tray cavity 11. The image also shows an inlet terminal mechanism 2, which is equal in number to the inlet cable tray 111 and cooperates with the inlet cable tray 111, and an outlet cable tray 3 connected to the inlet terminal mechanism 2.

[0021] The key technical points of the technical solution provided by this utility model are as follows: The aforementioned inlet terminal mechanism 2 includes an inlet bus 21, a first inlet fixing terminal 22, and a second inlet fixing terminal 23. The rear end of the inlet bus 21 is fitted with and fixed to the aforementioned inlet bus seat 111. The front end of the inlet bus 21 extends forward from the bottom of the inlet bus seat 111 to the front of the aforementioned inlet bus seat cavity 11. The first inlet fixing terminal 22 is fixed to the upper part of the inlet bus seat 111 along with the upper part of the rear end of the inlet bus 21 at a position corresponding to the upper part of the rear end of the inlet bus 21. The second inlet fixing terminal 23 is fixed to the inlet bus seat cavity 11 along with the upper part of the front end of the inlet bus 21 at a position corresponding to the upper part of the front end of the inlet bus 21. The front end of the aforementioned outlet bus 3 is fixed to both the upper part of the rear end of the inlet bus 21 and the upper part of the inlet bus seat 111. The rear end of the outlet bus 3 is configured as a horizontal cantilever end extending backward.

[0022] As a preferred embodiment, by Figure 1 As shown, the aforementioned base 1 has three cable tray cavities 11 spaced apart on its upward-facing side. Correspondingly, there are three cable terminal mechanisms 2 and three cable outlets 3. The number of cable trays 111 is also three. The left and right sides of the base 1 are the left side wall 14 and the right side wall 15, respectively. The front and rear openings of the cable tray cavities 11 are not closed, and the cable tray 111 is located in the middle. The applicant should clarify that regardless of the number of cable tray cavities 11 formed on the base 1, they should be considered as formal rather than substantive changes and should all be considered within the scope of the technical content disclosed in this utility model.

[0023] See you later Figure 1 On the upward-facing side of the aforementioned base 1 and at a position between each of the two adjacent aforementioned cable tray cavities 11, a cable tray cavity partition plate 12 is integrally formed from front to back along the length direction of the cable tray cavity 11. On the upper part of the cable tray cavity partition plate 12 and at a position corresponding to the side of the aforementioned cable tray 111, a cable tray fixing wall 121 extends upward. The cable tray 111 and the opposite side of the cable tray fixing wall 121 are also integrally formed. Since this utility model exemplifies an example of three cable tray cavities 11, based on common knowledge, the first cable tray 111 from left to right forms an integral structure with the opposite side of the left side wall 14 of the base and the cable tray fixing wall 121. The middle cable tray 111 (the one in the middle position among the three cable trays 111) forms an integral structure with the opposite side of the two adjacent cable tray fixing walls 121. The third and last cable tray 111 from left to right forms an integral structure with the right cable tray fixing wall 121 and the opposite side of the right side wall 15 of the base.

[0024] A cable tray insertion gap 1111 is formed between the bottom surface of the aforementioned cable tray holder 111 and the opposing side of the bottom wall of the aforementioned cable tray holder cavity 11. That is, a distance for inserting the cable tray is maintained between the cable tray holder 111 and the bottom of the cable tray holder cavity 11. Preferably, the height of the aforementioned cable tray insertion gap 1111 is adapted to the thickness of the cable tray 21 so that the cable tray insertion gap 1111 is compensated by the cable tray 21.

[0025] Depend on Figure 1As shown, the rear end of the aforementioned cable inlet 21 is folded upward to form a longitudinal flange 211 with a height adapted to the height of the aforementioned cable inlet seat 111. Above the longitudinal flange 211, a horizontal flange 212 with a length adapted to the length of the aforementioned cable inlet seat 111 is folded forward in a horizontal state. The longitudinal flange 211 abuts against and is fixed to the rear side of the cable inlet seat 111, while the horizontal flange 212 covers the upper surface of the cable inlet seat 111 and is attached to the front end of the aforementioned cable outlet 3 and the aforementioned first cable inlet fixing terminal 22 and the cable inlet seat 111. The front end of the cable tray 21 extends forward through the cable tray insertion gap 1111 to the top of the cable tray seat cavity 11 and is fixed to the bottom wall of the cable tray seat cavity 11 along with the second cable tray fixing terminal 23. The cable tray 21 is fixed to the cable tray seat 111 at the portion corresponding to the bottom surface of the cable tray seat 111. A cable tray longitudinal folded edge fixing screw hole 2111 is provided on the cable tray longitudinal folded edge 211, and the cable tray longitudinal folded edge fixing screw 21111 is fixed to the rear side of the cable tray seat 111 at the position corresponding to the cable tray longitudinal folded edge fixing screw hole 2111.

[0026] Depend on Figure 1 and Figure 2 As shown, the space formed by the rear end of the aforementioned cable tray 21, the longitudinal folded edge 211 of the cable tray, and the horizontal folded edge 212 of the cable tray together constitutes a U-shaped enveloping cavity 213 of the cable tray seat for enveloping (i.e. surrounding) the upper and lower surfaces and the rear side of the aforementioned cable tray seat 111.

[0027] Please see Figure 2 And combined Figure 1The aforementioned first incoming cable core fixing terminal 22 includes a first incoming cable core bare crimping end 221, a first bare crimping end electrical connection fixing plate 222, a second incoming cable core bare crimping end 223, and a second bare crimping end electrical connection fixing plate 224. The rear end of the first incoming cable core bare crimping end 221 is welded to the front end of the first bare crimping end electrical connection fixing plate 222 facing upward. The front end of the first incoming cable core bare crimping end 221 extends forward to form a horizontal suspension. At the arm end, a first bare crimping terminal electrical connection fixing plate 222 has a first bare crimping terminal electrical connection fixing plate fixing screw hole 2221 at its rear end. A first bare crimping terminal electrical connection fixing plate fixing screw 2221 is provided in the first bare crimping terminal electrical connection fixing plate fixing screw hole 2221. Preferably, a first washer 22212 is fitted onto the first bare crimping terminal electrical connection fixing plate fixing screw 22211. The first washer 22212 is preferably a spring washer. The second incoming line electrical... The bare crimp end 223 of the cable core corresponds to the lower part of the bare crimp end 221 of the first incoming cable core, and the rear end of the bare crimp end 223 of the second incoming cable core is welded to the front end face of the electrical connection fixing plate 224 of the second bare crimp end, and is also fixed (welded) to the lower front surface of the electrical connection fixing plate 224 of the second bare crimp end by an added extension transition ear 2231. The front end of the bare crimp end 223 of the second incoming cable core extends forward to form a horizontal cantilever end. The rear end of the two bare crimp terminal electrical connection fixing plate 224 has a second bare crimp terminal electrical connection fixing plate fixing screw hole 2241, which is corresponding to the fixing screw hole 2221 of the first bare crimp terminal electrical connection fixing plate. The fixing screw 22211 of the first bare crimp terminal electrical connection fixing plate passes downward through the fixing screw hole 2241 of the second bare crimp terminal electrical connection fixing plate and the horizontal folded edge 212 of the inlet busbar is fixed to the front end of the inlet busbar seat 111 facing upward.The aforementioned second incoming cable fixing terminal 23 includes a third incoming cable core bare crimping end 231, a third bare crimping end electrical connection fixing plate 232, a fourth incoming cable core bare crimping end 233, and a fourth bare crimping end electrical connection fixing plate 234. The rear end of the third incoming cable core bare crimping end 231 is welded to the upper front end of the third bare crimping end electrical connection fixing plate 232. The front end of the third incoming cable core bare crimping end 231 extends forward to form a horizontal cantilever end. A third bare crimping end electrical connection fixing plate fixing screw hole 2321 is provided at the rear end of the third bare crimping end electrical connection fixing plate 232. A third bare crimping end electrical connection fixing plate fixing screw 2321 with a second washer 23212 (using a spring washer) is provided on the third bare crimping end electrical connection fixing plate fixing screw hole 2321. The fourth incoming cable core bare crimping end 233 corresponds to the third incoming cable core bare crimping end 234. Below the bare crimped end 231 of the fourth incoming cable core, and the rear end of the bare crimped end 233 is welded to the front end of the fourth bare crimped end electrical connection fixing plate 234, and is also welded to the lower surface of the front end of the fourth bare crimped end electrical connection fixing plate 224 through an added connecting transition ear 2331. The front end of the fourth incoming cable core bare crimped end 233 extends forward to form a horizontal cantilever end. A fourth bare crimped end electrical connection fixing plate fixing screw hole 2341 is opened at the rear end of the fourth bare crimped end electrical connection fixing plate 234, which corresponds to the fixing screw hole 2321 of the aforementioned third bare crimped end electrical connection fixing plate. The fixing screw 23211 of the aforementioned third bare crimped end electrical connection fixing plate passes through the fixing screw hole 2341 of the aforementioned fourth bare crimped end electrical connection fixing plate and is fixed to the front end of the aforementioned incoming cable bus 21 and the front end of the aforementioned incoming cable bus seat cavity 11 facing upward.

[0028] See you later Figure 1 and Figure 2A horizontal flange 212 of the aforementioned cable tray is provided with a screw through hole 2121 corresponding to the screw hole 2241 of the aforementioned second bare crimp terminal electrical connection fixing plate. A bare crimp terminal electrical connection plate fixing screw nut 1112 is embedded in front of the upper surface of the aforementioned cable tray seat 111 and in the position corresponding to the screw through hole 2121. The aforementioned first bare crimp terminal electrical connection fixing plate fixing screw 22211 passes through the screw through hole 2121 and is fixed to the aforementioned bare crimp terminal electrical connection plate fixing screw nut 1112. At the front end of 1, a third bare crimping terminal electrical connection fixing plate fixing screw through hole 214 is provided at the position corresponding to the aforementioned fourth bare crimping terminal electrical connection fixing plate fixing screw hole 2341. A bare crimping terminal electrical connection plate fixing screw mating nut 112 is embedded on the bottom wall of the inlet seat cavity 11 of the aforementioned base 1 at the position corresponding to the third bare crimping terminal electrical connection fixing plate fixing screw through hole 214. The aforementioned third bare crimping terminal electrical connection fixing plate fixing screw 23211 passes through the third bare crimping terminal electrical connection fixing plate fixing screw through hole 214 and is fixed with the aforementioned bare crimping terminal electrical connection plate fixing screw mating nut 112.

[0029] A stud hole 1113 is provided at the bottom of the aforementioned cable tray seat 111, and at both the front and rear ends. A stud sleeve 11131 is inserted into the stud hole 1113. A cable tray middle fixing screw hole 215 is provided in the middle of the aforementioned cable tray 21, corresponding to the stud hole 1113. A cable tray middle fixing screw 2151 is provided in the position corresponding to the cable tray middle fixing screw hole 215. The middle part of the aforementioned cable tray seat cavity 11 in the length direction and at the position corresponding to the aforementioned cable tray seat 111 below it is formed as a base hollow cavity 13 communicating with the outside. The aforementioned cable tray middle fixing screw 2151 is screwed upward into the aforementioned stud sleeve 11131 at the position corresponding to the base hollow cavity 13.

[0030] See you later Figure 1 and Figure 2 A cable outlet front fixing hole 31 is provided at the front end of the aforementioned cable outlet 3, and a cable outlet front fixing screw 311 is provided in the cable outlet front fixing hole 31. A cable outlet middle fixing screw hole 32 is provided in the middle of the cable outlet 3, and a cable outlet middle fixing screw 321 is provided at the position corresponding to the cable outlet middle fixing screw hole 32. An outgoing cable core electrical connection hole 33 is provided at the rear end of the cable outlet 3. A cable outlet horizontal folded edge front fixing screw hole 2122 is provided on the aforementioned ingoing cable outlet horizontal folded edge 212 at the position corresponding to the aforementioned cable outlet front fixing hole 31. Figure 2As shown), a horizontal flange 2123 for fixing the inlet cable is provided on the inlet cable horizontal flange 212 and at a position corresponding to the fixing screw hole 32 in the middle of the aforementioned outlet cable. Figure 2 (See illustration). A middle fixing sleeve 1114 for the upper part of the cable tray is added to the middle of the upper surface of the aforementioned cable tray seat 111, at a position corresponding to the fixing screw hole 2122 at the front end of the horizontal folded edge of the aforementioned cable tray. A rear end fixing sleeve 1115 for the upper part of the cable tray is embedded at the rear end of the upper surface of the cable tray seat 111, at a position corresponding to the fixing screw hole 2123 at the front end of the aforementioned cable tray. The aforementioned front end fixing screw 311 (equipped with a spring washer) passes sequentially through the aforementioned front end fixing hole 31 of the cable tray and the front end fixing screw hole 21 of the horizontal folded edge of the cable tray. 22. Screw in the middle fixing sleeve 1114 of the upper part of the aforementioned inlet cable tray to fix the front end of the outlet cable tray 3 together with the middle part of the horizontal folded edge 212 of the inlet cable tray to the middle part of the surface of the aforementioned inlet cable tray 111. At the same time, the aforementioned outlet cable tray middle fixing screw 321 (equipped with a spring washer) passes through the aforementioned outlet cable tray middle fixing screw hole 32 and the inlet cable tray horizontal folded edge fixing screw hole 2123 in sequence and screws in the upper rear fixing sleeve 1115 of the aforementioned inlet cable tray to fix the middle part of the outlet cable tray 3 together with the rear end of the horizontal folded edge 212 of the inlet cable tray to the rear end of the upper surface of the aforementioned inlet cable tray 111.

[0031] Preferably, by Figure 1As shown, an inlet busbar isolation plate slot 122 is provided on the front side of the aforementioned inlet busbar seat cavity partition plate 12, and an inlet busbar fixing wall front slot 1211 is provided on the front side of the aforementioned inlet busbar seat fixing wall 121. The inlet busbar isolation plate slot 122 and the inlet busbar fixing wall front slot 1211 correspond to and communicate with each other. An inlet busbar isolation plate 4 is inserted into both the inlet busbar isolation plate slot 122 and the inlet busbar fixing wall front slot 1211. The cross-sectional shape of both the inlet busbar isolation plate slot 122 and the inlet busbar fixing wall front slot 1211 is C-shaped. An inlet busbar isolation plate guide pin 41 is formed on the upper and lower parts of the rear side of the aforementioned inlet busbar isolation plate 4 in the height direction. The rear side of the inlet busbar isolation plate 4 in the height direction is inserted into the inlet busbar fixing wall front slot 1211 and the inlet busbar isolation plate slot 122 in a top-to-bottom insertion manner. A cable outlet isolation plate slot (not shown in the figure) with the same shape and size as the cable inlet isolation plate slot 122 is provided on the rear side of the cable outlet cavity partition plate 12. A cable inlet fixing wall rear slot 1212 is provided on the rear side of the aforementioned cable outlet seat fixing wall 121. The cable outlet isolation plate slot corresponds to and communicates with the cable inlet fixing wall rear slot 1212. A cable outlet isolation plate 5 is inserted into both the cable outlet isolation plate slot and the cable inlet fixing wall rear slot 1212. The cross-sectional shape of both the cable outlet isolation plate slot and the cable inlet fixing wall rear slot 1212 is C-shaped. A cable outlet isolation plate guide pin 51 is formed on the upper and lower parts of the front side of the aforementioned cable outlet isolation plate 5 in the height direction. The front side of the cable outlet isolation plate 5 in the height direction is inserted and engaged with the cable inlet fixing wall rear slot 1212 and the cable outlet isolation plate slot in a top-to-bottom insertion manner.

[0032] In this embodiment, the inlet busbar 21, the first and second inlet fixed terminals 22 and 23, and the outlet busbar 3 of the aforementioned inlet terminal mechanism 2 are preferably made of T2 copper as mentioned in Chinese National Standard GB / T 5231. The base 1 of this utility model, together with the aforementioned inlet busbar seat fixing wall 121 and inlet busbar seat 111, is preferably integrally molded from molding compound.

[0033] As can be seen from the above description, the relationship between the inlet terminal mechanism 2 and the outlet busbar 3 of this utility model is as follows: In the structural system of the inlet terminal mechanism 2, the inlet busbar 21 is electrically connected to the first and second inlet fixed terminals 22 and 23. The first and second inlet fixed terminals 22 and 23 have a total of four ends (i.e., each has two pairs of ends), specifically: the first, second, third, and fourth inlet cable core bare crimping ends 221, 223, 231, and 233, so that the inlet busbar 21 has a combiner effect, which gathers the four currents together and then leads them out through the outlet busbar 3, that is, the gathered current flows to the outlet busbar 3. If the current of the cables connected to the bare crimp terminals 221, 223, 231, and 233 of the first, second, third, and fourth incoming cable cores is 100A, then the structure of this utility model can greatly reduce the space occupation while ensuring a current carrying capacity of 400A, which is very beneficial to the integration of the layout space and improves the space utilization rate of low-voltage power distribution equipment.

[0034] In summary, this utility model combines the advantages of optimized space, compact structure, and high reliability, making it an excellent technical solution.

Claims

1. A high-current transfer terminal for low-voltage power distribution equipment, comprising a base (1), an inlet bus seat cavity (11) provided on the upward-facing side of the base (1), an inlet bus seat (111) formed within the inlet bus seat cavity (11); an inlet terminal mechanism (2) provided within the inlet bus seat cavity (11) in number equal to and cooperating with the inlet bus seat (111); and an outlet bus (3) connected to the inlet terminal mechanism (2), characterized in that: The cable inlet terminal mechanism (2) includes a cable inlet bus (21), a first cable inlet fixing terminal (22), and a second cable inlet fixing terminal (23). The rear end of the cable inlet bus (21) is fitted into and fixed to the cable inlet bus seat (111). The front end of the cable inlet bus (21) extends forward from the bottom of the cable inlet bus seat (111) to the front of the cable inlet bus seat cavity (11). The first cable inlet fixing terminal (22) is located at the rear end of the cable inlet bus (21). The upper part of the upper part of the cable inlet (21) is fixed to the upper part of the cable inlet seat (111). The second cable inlet fixing terminal (23) is fixed to the upper part of the cable inlet (21) along with the front end of the cable inlet (21) and the cable inlet seat cavity (11). The front end of the cable outlet (3) is fixed to the upper part of the rear end of the cable inlet (21) and the upper part of the cable inlet seat (111). The rear end of the cable outlet (3) is configured as a horizontal cantilever end that extends backward.

2. The high current transfer terminal for low voltage power distribution equipment of claim 1, wherein: On the upward-facing side of the base (1) and between each pair of adjacent cable tray cavities (11), a cable tray cavity partition plate (12) is formed from front to back along the length of the cable tray cavity (11). Above the cable tray cavity partition plate (12) and at a position corresponding to the side of the cable tray (111), a cable tray fixing wall (121) extends upward. The cable tray (111) and the opposite side of the cable tray fixing wall (121) form an integral structure.

3. The high current transfer terminal for low voltage power distribution equipment of claim 1, wherein: A cable insertion gap (1111) is formed between the bottom surface of the cable tray (111) and the opposite side of the bottom wall of the cable tray cavity (11).

4. The high current transfer terminal for low voltage power distribution equipment of claim 3, wherein: The rear end of the input cable bar (21) is folded upward to form a longitudinal fold (211) with a height adapted to the height of the input cable bar seat (111). Above the longitudinal fold (211), a horizontal fold (212) with a length adapted to the length of the input cable bar seat (111) is folded forward horizontally. The longitudinal fold (211) abuts against and is fixed to the rear side of the input cable bar seat (111). The horizontal fold (212) covers the upper surface of the input cable bar seat (111) and is fixed to the input cable bar seat (111) along with the front end of the output cable bar (3) and the first input cable fixing terminal (22). The front end of the cable tray (21) extends forward through the cable tray insertion gap (1111) to the top of the cable tray seat cavity (11) and is fixed to the bottom wall of the cable tray seat cavity (11) along with the second cable fixing terminal (23). The cable tray (21) is fixed to the cable tray seat (111) at a position corresponding to the bottom surface of the cable tray seat (111). A cable tray longitudinal folding edge fixing screw hole (2111) is provided on the cable tray longitudinal folding edge (2111), and the cable tray longitudinal folding edge fixing screw (21111) is fixed to the rear side of the cable tray seat (111) at a position corresponding to the cable tray longitudinal folding edge fixing screw hole (2111).

5. The high current transfer terminal for low voltage power distribution equipment of claim 4, wherein: The space formed by the rear end of the cable tray (21), the longitudinal fold (211) of the cable tray, and the horizontal fold (212) of the cable tray together constitutes a U-shaped enveloping cavity (213) of the cable tray seat for enveloping the upper and lower surfaces and the rear side of the cable tray seat (111).

6. The high current transfer terminal for low voltage power distribution equipment of claim 4, wherein: The first incoming cable core fixing terminal (22) includes a first incoming cable core bare crimp terminal (221), a first bare crimp terminal electrical connection fixing plate (222), a second incoming cable core bare crimp terminal (223), and a second bare crimp terminal electrical connection fixing plate (224). The rear end of the first incoming cable core bare crimp terminal (221) is welded to the front end of the first bare crimp terminal electrical connection fixing plate (222). The front end of the first incoming cable core bare crimp terminal (221) extends forward to form a horizontal cantilever end. A first bare crimp terminal electrical connection fixing plate fixing screw hole (2221) is opened at the rear end of the first bare crimp terminal electrical connection fixing plate (222), and a first bare crimp terminal electrical connection fixing plate fixing screw (22211) is provided in the first bare crimp terminal electrical connection fixing plate fixing screw hole (2221). The second incoming cable core bare crimp terminal... The head (223) corresponds to the lower part of the bare crimp end (221) of the first incoming cable core, and the rear end of the bare crimp end (223) of the second incoming cable core is welded to the front end of the second bare crimp end electrical connection fixing plate (224). The front end of the bare crimp end (223) of the second incoming cable core extends forward to form a horizontal cantilever end. A second bare crimp end electrical connection fixing plate fixing screw hole (2241) is opened at the rear end of the second bare crimp end electrical connection fixing plate (2221) corresponding to the fixing screw hole (2221) of the first bare crimp end electrical connection fixing plate. The fixing screw (22211) of the first bare crimp end electrical connection fixing plate passes through the fixing screw hole (2241) of the second bare crimp end electrical connection fixing plate and is fixed to the front end of the horizontal folded edge (212) of the incoming cable and the side facing upward of the incoming cable seat (111).The second incoming cable fixing terminal (23) includes a third incoming cable core bare crimping end (231), a third bare crimping end electrical connection fixing plate (232), a fourth incoming cable core bare crimping end (233), and a fourth bare crimping end electrical connection fixing plate (234). The rear end of the third incoming cable core bare crimping end (231) is welded to the front end of the third bare crimping end electrical connection fixing plate (232). The front end of the third incoming cable core bare crimping end (231) extends forward to form a horizontal cantilever end. A third bare crimping end electrical connection fixing plate fixing screw hole (2321) is opened at the rear end of the third bare crimping end electrical connection fixing plate (2321), and a third bare crimping end electrical connection fixing plate fixing screw (23211) is provided on the third bare crimping end electrical connection fixing plate fixing screw hole (2321). The fourth incoming cable core bare crimping end... The end (233) corresponds to the lower part of the bare crimp end (231) of the third incoming cable core, and the rear end of the bare crimp end (233) of the fourth incoming cable core is welded to the front end of the electrical connection fixing plate (234) of the fourth bare crimp end. The front end of the bare crimp end (233) of the fourth incoming cable core extends forward to form a horizontal cantilever end. A fixing screw hole (2341) of the electrical connection fixing plate of the fourth bare crimp end is opened at the rear end of the electrical connection fixing plate of the fourth bare crimp end, which corresponds to the fixing screw hole (2321) of the electrical connection fixing plate of the third bare crimp end. The fixing screw (23211) of the electrical connection fixing plate of the third bare crimp end passes through the fixing screw hole (2341) of the electrical connection fixing plate of the fourth bare crimp end and is fixed to the front end of the cable tray (21) and the front end of the cable tray seat cavity (11) facing upward.

7. The high current transfer terminal for low voltage power distribution equipment of claim 6, wherein: A screw through hole (2121) is provided on the horizontal folded edge (212) of the input busbar and at a position corresponding to the fixing screw hole (2241) of the second bare crimping end electrical connection fixing plate. A bare crimping end electrical connection plate fixing screw connecting nut (1112) is embedded in front of the upper surface of the input busbar seat (111) and at a position corresponding to the screw through hole (2121). The first bare crimping end electrical connection fixing plate fixing screw (22211) passes through the screw through hole (2121) of the input busbar and is fixed to the bare crimping end electrical connection plate fixing screw connecting nut (1112). 1) has a third bare crimping terminal electrical connection fixing plate fixing screw through hole (214) at the front end and at the position corresponding to the fourth bare crimping terminal electrical connection fixing plate fixing screw hole (2341). A bare crimping terminal electrical connection plate fixing screw mating nut (112) is embedded on the bottom wall of the inlet seat cavity (11) of the base (1) at the position corresponding to the third bare crimping terminal electrical connection fixing plate fixing screw through hole (214). The third bare crimping terminal electrical connection fixing plate fixing screw (23211) passes through the third bare crimping terminal electrical connection fixing plate fixing screw through hole (214) and is fixed with the bare crimping terminal electrical connection plate fixing screw mating nut (112).

8. The large current transfer terminal for low voltage distribution equipment according to claim 1 or 6 or 7, characterized in that: A stud hole (1113) is provided at the bottom of the cable tray seat (111) and at the front and rear ends. A stud sleeve (11131) is inserted into the stud sleeve hole (1113). A cable tray middle fixing screw hole (215) is provided in the middle of the cable tray (21) and at the position corresponding to the stud sleeve hole (1113). A cable tray middle fixing screw (2151) is provided at the position corresponding to the cable tray middle fixing screw hole (215). The middle part of the cable tray seat cavity (11) in the length direction and at the position corresponding to the bottom of the cable tray seat (111) is formed as a base hollow cavity (13) communicating with the outside. The cable tray middle fixing screw (2151) is screwed upward into the stud sleeve (11131) at the position corresponding to the base hollow cavity (13).

9. The high current transfer terminal for low voltage power distribution equipment of claim 4, wherein: A front-end fixing hole (31) is provided at the front end of the outlet bar (3), and a front-end fixing screw (311) is provided in the front-end fixing hole (31). A middle fixing screw hole (32) is provided in the middle of the outlet bar (3), and a middle fixing screw (321) is provided at the position corresponding to the middle fixing screw hole (32). An electrical connection hole (33) for the cable core is provided at the rear end of the outlet bar (3). A horizontal flange front fixing screw hole (2122) for the inlet busbar is provided on the flange (212) at a position corresponding to the front fixing hole (31) of the outlet busbar. A horizontal flange fixing screw hole (2123) for the inlet busbar is provided on the horizontal flange (212) for the inlet busbar at a position corresponding to the middle fixing screw hole (32) of the outlet busbar. An inlet busbar is added at the middle of the upper surface of the inlet busbar seat (111) at a position corresponding to the front fixing screw hole (2122) of the horizontal flange (212) of the inlet busbar. A middle fixing sleeve (1114) is provided on the upper part of the cable tray seat. A rear end fixing sleeve (1115) is embedded at the rear end of the upper surface of the cable tray seat (111) and at a position corresponding to the fixing screw hole (2123) of the horizontal folded edge of the cable tray. The front end fixing screw (311) of the cable tray passes sequentially through the front end fixing hole (31) of the cable tray and the front end fixing screw hole (2122) of the horizontal folded edge of the cable tray, and is screwed into the middle fixing sleeve (1114) of the upper part of the cable tray seat to secure the cable tray (311). The front end of the cable outlet (3) together with the middle part of the horizontal fold (212) of the cable inlet is fixed to the middle part of the surface of the cable inlet seat (111). At the same time, the middle fixing screw (321) of the cable outlet passes through the middle fixing screw hole (32) of the cable outlet and the fixing screw hole (2123) of the horizontal fold of the cable inlet and screws into the upper rear fixing screw sleeve (1115) of the cable inlet seat, thereby fixing the middle part of the cable outlet (3) together with the rear end of the horizontal fold (212) of the cable inlet to the rear end of the upper surface of the cable inlet seat (111).

10. The high current transfer terminal for low voltage power distribution equipment of claim 2, wherein: An inlet busbar isolation plate slot (122) is provided on the front side of the inlet busbar seat cavity partition plate (12), and an inlet busbar fixing wall front slot (1211) is provided on the front side of the inlet busbar seat fixing wall (121). The inlet busbar isolation plate slot (122) and the inlet busbar fixing wall front slot (1211) correspond to and communicate with each other. An inlet busbar isolation plate (4) is inserted into both the inlet busbar isolation plate slot (122) and the inlet busbar fixing wall front slot (1211). The cross-sectional shape of both the inlet busbar isolation plate slot (122) and the inlet busbar fixing wall front slot (1211) is C-shaped. An inlet busbar isolation plate guide pin (41) is formed on the upper and lower parts of the rear side of the inlet busbar isolation plate (4) in the height direction. The rear side of the inlet busbar isolation plate (4) in the height direction is inserted into the inlet busbar fixing wall front slot (1211) and the inlet busbar isolation plate in a top-to-bottom insertion manner. The plate slot (122) is inserted and fitted; a cable outlet isolation plate slot is provided on the rear side of the cable inlet seat cavity partition plate (12), and a cable outlet fixing wall rear slot (1212) is provided on the rear side of the cable inlet seat fixing wall (121). The cable outlet isolation plate slot corresponds to and communicates with the cable outlet fixing wall rear slot (1212). A cable outlet isolation plate (5) is inserted into both the cable outlet isolation plate slot and the cable outlet fixing wall rear slot (1212). The cross-sectional shape of the cable outlet isolation plate slot and the cable outlet fixing wall rear slot (1212) is C-shaped. A cable outlet isolation plate guide pin (51) is formed on the upper and lower parts of the front side of the cable outlet isolation plate (5) in the height direction. The front side of the cable outlet isolation plate (5) in the height direction is inserted and fitted into the cable outlet fixing wall rear slot (1212) and the cable outlet isolation plate slot in a top-to-bottom insertion manner.

Images