Anti-winding cable interface of low-voltage cable branch box

By employing multiple assembled conductive structures and insulating sleeve designs in the cable interface, the problems of poor mechanical strength and electrical performance stability of the cable interface are solved, achieving stable current transmission and a highly adaptable cable interface, thereby improving electrical continuity and service life.

CN120855014AActive Publication Date: 2025-10-28CHENGDU CHANGZHENG ELECTRIC CO LTD

Patent Information

Application Number
CN202511348725.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-10-28
Estimated Expiration
2045-09-22

AI Technical Summary

Technical Problem

Existing cable interfaces have poor mechanical strength and electrical performance stability when connecting conductive cables. They are easily affected by vibration and impact, and are difficult to adjust according to site conditions, making them inconvenient to use.

Method used

Employing multiple assembled conductive structures and insulating sleeve designs, the combination of split cables and embedded blocks enables split transmission and stable fixation of current, enhancing electrical continuity and mechanical stability. Furthermore, the current path is expanded through conductive electrode plates, and real-time detection is achieved in conjunction with the power distribution hub and conductive safety protection module.

Benefits of technology

It improves the current transmission efficiency and stability of cable interfaces, reduces signal loss and electromagnetic interference, extends service life, and adapts to the laying requirements of various circuits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an anti-winding cable interface of a low-voltage cable branch box, relates to the technical field of cable interfaces, and solves the problems of poor electrical continuity and mechanical stability and short service life during connection of the cable interface. The invention discloses an anti-winding cable interface of a low-voltage cable branch box. The anti-winding cable interface comprises a three-way cable interface shell, the external conductive assembly is arranged at the top in the three-way cable interface shell; the electric conductor is arranged in the three-way cable interface shell and is electrically connected with the external conductive component; and the assembled conductive structure is electrically connected with the conductor and is arranged at the bottom in the three-way cable interface shell. According to the invention, the cable can be combined and assembled according to the requirements of a multi-strand shunting cable in an actual circuit, and it is ensured that the laid cable meets different requirements. Meanwhile, during current transmission, the ionization phenomenon under high voltage and energy loss in the discharging process can be reduced, the current transmission efficiency is effectively improved, the electrical continuity and mechanical stability are improved to the maximum extent, and the service life is prolonged to the maximum extent.
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Description

Technical Field

[0001] This invention relates to the field of cable interface technology, specifically to an anti-tangle cable interface for a low-voltage cable branch box. Background Technology

[0002] Low-voltage cable distribution boxes are key equipment in power distribution networks used for cable line branching, switching, and circuit conversion, and are mostly used in outdoor environments. When switching cables from low-voltage cable distribution boxes, intermediate joints need to be added to long-distance cable lines. These intermediate cable joints improve safety and reduce cable laying and procurement costs.

[0003] A cable interface, also known as a cable joint, is a connection made at a junction point after a cable has been laid to ensure a continuous circuit. To accommodate multiple cable lines, multi-connection cable joints are sometimes required.

[0004] However, this cable interface has the following drawbacks in practical use: 1. Existing cable interfaces require connecting the plug of the conductive cable to the cable connector when connecting conductive cables to power transmission cables, meeting the needs of transfer, branching, and circuit conversion in long-distance power transmission operations. To meet the requirements of quick insertion and removal, traditional cable plugs typically use rotatable threaded connectors to connect to the cable connector, ensuring stability and safety in the conductive connection state. This, combined with the internal conductor structure of the cable connector, facilitates current transmission. However, during current transmission within the cable connector, subsequent safety checks and other laying requirements necessitate repeated pulling and adjustment of the laid cable. This makes the cable interface susceptible to vibration and impact, resulting in high internal mechanical strength, poor electrical stability, increased signal transmission loss, susceptibility to electromagnetic interference, poor electrical continuity and mechanical stability, and a short service life. 2. Existing cable interfaces require the cable plug to be inserted into the interface for conductive connections when laying cables, enabling power transmission across multiple cables. However, in actual cable laying, the cables need to meet the requirements of multiple circuit transitions, and traditional cable interfaces are difficult to adjust according to site conditions, making them inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-tangle cable interface for low-voltage cable branch boxes to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an anti-tangle cable interface for a low-voltage cable branch box, comprising: a tee cable interface housing; an external conductive component disposed at the top inside the tee cable interface housing; a conductive body disposed inside the tee cable interface housing and electrically connected to the external conductive component; and an assembled conductive structure electrically connected to the conductive body and installed at the bottom inside the tee cable interface housing, wherein two assembled conductive structures are provided, both of which are disposed below the external conductive component. The assembled conductive structure includes: an embedded conductive component installed at the bottom of the housing of the three-way cable interface; a separate cable installed inside the embedded conductive component and electrically connected to an external plug; an insulating sleeve sleeved on the outside of the separate cable and installed inside the embedded conductive component; multiple abutment springs disposed at the center inside the insulating sleeve; an assembly positioning component installed on the top of the embedded conductive component; and a conductive intermediate module installed inside the assembly positioning component and electrically connected to the conductor and the separate cable respectively. The split cable has multiple strands, and the internal electrical connection of the embedded conductive component is an external plug.

[0007] In a preferred embodiment of the present invention, a threaded sleeve is threaded to one side of the top of the tee cable interface housing, an embedded tail sleeve is threaded to the other side of the top of the tee cable interface housing, and a threaded inner sleeve is threaded to the bottom of the tee cable interface housing. The threaded sleeve has an external plug fixed inside, and the threaded inner sleeve has an external plug connected to its internal threads.

[0008] As a preferred embodiment of the present invention, the external conductive component includes: an upper embedded metal block installed at the top of the housing of the tee cable interface; a conductor protective sleeve installed at the bottom of the upper embedded metal block and extending to the bottom of the housing of the tee cable interface; a conductive electrode plate installed on the inner wall of the upper embedded metal block; conductive sockets electrically connected to the front and rear sides of the conductive electrode plate; a power transmission module electrically connected between the two conductive sockets; a power distribution hub electrically connected to the power transmission module and installed at the center of the top of the housing of the tee cable interface; and a power transmission plug electrically connected to the power transmission module and installed inside the threaded sleeve. The power supply plug has an external plug fixed inside.

[0009] In a preferred embodiment of the present invention, a conductive body extending into the interior of the upper embedded metal block is provided through the inner side of the conductor protective sleeve. A snap-fit ​​plug is connected to the top of the conductive body via a wire. The snap-fit ​​plug is installed inside the intermediate electrical socket and is electrically connected to the intermediate electrical socket. The intermediate electrical socket is electrically connected to the center of the side of the conductive electrode plate.

[0010] In a preferred embodiment of the present invention, a conductive safety protection module is electrically connected to the bottom of the power transmission module located at the bottom. The conductive safety protection module is installed inside the embedded tail sleeve and is connected to a relay via a wire. The conductive safety protection module is disposed on the side of the conductive electrode sheet.

[0011] As a preferred embodiment of the present invention, the embedded conductive component includes: a bottom housing installed at the bottom of the three-way cable interface housing; an upper connecting housing threadedly connected to the top of the bottom housing and extending above the bottom housing; a split conductive module installed inside the bottom housing and extending into the upper connecting housing; a split conductive head installed at the center of the split conductive module; conductive pins electrically connected to the split conductive head and extending to the bottom of the split conductive module; and inner inserts installed at the bottom of the split conductive module and located on the left and right sides of the conductive pins. The top of the split conductive module is equipped with an assembly positioning component that extends to the outside.

[0012] As a preferred embodiment of the present invention, an insulating sleeve is provided above the split conductive head and installed inside the split conductive module. The insulating sleeve extends to the outside of the split conductive module, and a split cable is electrically connected to the top of the split conductive head.

[0013] As a preferred embodiment of the present invention, the assembly positioning component includes: a lower embedded block installed on top of the split conductive module; an upper embedded port formed at the top of the lower embedded block and located outside the split cable; an intermediate embedded block installed on top of the lower embedded block through the upper embedded port; a protrusion installed on top of the intermediate embedded block and located outside the split cable; an upper embedded block installed on top of the intermediate embedded block through the protrusion; an outer protective cover installed on top of the upper embedded block and threaded to the outer side of the top of the intermediate embedded block; and a top sealing cap threaded to the top of the outer protective cover and extending to the outer side.

[0014] In a preferred embodiment of the present invention, a conductive intermediate module is mounted on the top of the upper embedded block, located inside the outer protective cover. The conductive intermediate module is disposed below the top sealing cover, and a conductive element is disposed throughout the interior of the top sealing cover. Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: By using multiple independently designed prefabricated conductive structures, each cable that is conductively connected to the cable interface can be individually conductively connected, reducing the probability of cables getting tangled when connected to the cable interface.

[0015] 1. In the anti-tangle cable interface of low-voltage cable branch boxes, when transmitting current through the laid cable, the combinable cable interface allows for assembly according to the requirements of multiple branch cables in the actual circuit, ensuring that the laid cable meets different requirements and has strong applicability. Simultaneously, when the current is transmitted inside the cable interface, the design of multiple split cables can split the concentrated current transmission, disperse the surface electric field intensity during current transmission, reduce ionization under high voltage and energy loss during discharge, effectively improving current transmission efficiency. Furthermore, each split cable can be pressed and fixed (longitudinal direction) by the insulating sleeve on its outer side and the contact spring inside the insulating sleeve, reducing the probability of the split cable shaking and shifting due to external interference during current transmission, maximizing electrical continuity, mechanical stability, and service life. 2. In the anti-tangle cable interface of the low-voltage cable branch box, when the split cable transmits current to its internal parts, the design of multiple embedded blocks (lower embedded block, middle embedded block, and upper embedded block) serves two purposes. First, it positions the split cable passing through the inside, reducing the probability of the split cable shaking during power transmission. Second, the multiple embedded blocks (lower embedded block, middle embedded block, and upper embedded block) can apply downward pressure to the metal spring, causing the middle part of the metal spring to protrude inward, squeezing the split cable part inside, applying longitudinal pressure to the middle of the split cable, and ensuring the safety and stability of the split cable when transmitting current. 3. In the anti-tangle cable interface of the low-voltage cable branch box, the design of setting two conductive electrode plates connected to the conductor can expand the path length of the current transmission on the conductive electrode plates, thereby increasing the intensity of the current transmitted by the conductive electrode plates, the transmission area during current transmission, improving the stability and transmission capacity of the current, and enhancing the conductivity of the cable interface during current transmission. Simultaneously, when merging and transmitting multiple currents, the design of the power distribution center and conductive safety protection module allows for real-time detection of the transmitted voltage intensity, ensuring safety during current transmission. 4. In the anti-tangle cable interface of the low-voltage cable branch box, when the plug part of the cable is inserted into the inside of the cable interface and made conductive connection with the conductive pins, the conductive metal protrusion of the cable connector (socket) is squeezed and fixed (by the elastically set inner insert tab), which can further ensure the stability and firmness of the connection and assembly of the cable plug and the cable interface, and ensure the conductivity and conductivity stability of the two after connection. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the entire structure of the present invention; Figure 3 This is a schematic diagram of the overall front cross-section of the present invention; Figure 4 This is a cross-sectional view of the external conductive component of the present invention after assembly; Figure 5 This is the present invention. Figure 4 Enlarged structural diagram of region A in the middle; Figure 6 This is an exploded view of the connection between the outer shell and the conductor protective sleeve of the three-way cable interface of the present invention. Figure 7 This is a cross-sectional structural diagram showing the connection between the three-way cable interface shell and the external conductive component of the present invention; Figure 8 This is a cross-sectional structural diagram showing the connection between the external conductive component and the conductor of the present invention; Figure 9 This is a cross-sectional structural diagram showing the connection between the assembled conductive structure and the external conductive components of the present invention. Figure 10 This is an exploded view of the assembled conductive structure of the present invention after cross-section. Figure 11 This is a cross-sectional schematic diagram of the assembled conductive structure of the present invention; Figure 12 This is an exploded view of the connection between the outer shell and the assembly positioning component in this invention. Figure 13 This is a schematic diagram of the connection between the insulating sleeve and the contact spring of the present invention; In the picture: 10. Three-way cable interface housing; 101. Threaded sleeve; 102. Embedded tail sleeve; 103. Threaded inner sleeve; 20. External conductive component; 201. Embedded metal block; 202. Conductor protective sleeve; 203. Conductive electrode plate; 204. Conductive socket; 205. Power transmission module; 2051. Conductive safety protection module; 206. Power distribution hub; 207. Power transmission plug; 30. Conductor; 301. Snap-fit ​​plug; 302. Intermediate electrical socket; 40. Assembled conductive structure; 401. Embedded conductive component; 402. Split cable; 403. Insulating sleeve; 404. Contact spring; 405. Assembly positioning component; 406. Conductive intermediate module; 4011. Bottom housing; 4012. Upper connecting housing; 4013. Split conductive module; 4014. Split conductive head; 4015. Conductive pin; 4016. Internal connector; 4051. Lower embedded block; 4052. Upper embedded opening; 4053. Middle embedded block; 4054. Protrusion; 4055. Upper embedded block; 4056. Outer protective cover; 4057. Top sealing cover; 50. Metal spring; 501. Pressing protrusion. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] Example 1

[0021] Please see Figures 1-13A low-voltage cable branch box anti-tangle cable interface includes a three-way cable interface housing 10; an external conductive component 20 disposed at the top inside the three-way cable interface housing 10; a conductor 30 disposed inside the three-way cable interface housing 10 and electrically connected to the external conductive component 20; and an assembled conductive structure 40 electrically connected to the conductor 30 and installed at the bottom inside the three-way cable interface housing 10. Two assembled conductive structures 40 are provided, both disposed below the external conductive component 20. Each assembled conductive structure 40 includes an embedded conductive component installed at the bottom inside the three-way cable interface housing 10. 401; a split cable 402 installed inside the embedded conductive component 401 and electrically connected to an external plug; an insulating sleeve 403 sleeved on the outside of the split cable 402 and installed inside the embedded conductive component 401; multiple contact springs 404 disposed at the center inside the insulating sleeve 403; an assembly positioning component 405 installed on the top of the embedded conductive component 401; a conductive intermediate module 406 installed inside the assembly positioning component 405 and electrically connected to the conductor 30 and the split cable 402 respectively, wherein the split cable 402 is provided with multiple strands, and an external plug is electrically connected inside the embedded conductive component 401.

[0022] In this invention, the external conductive components 20 of the two cable interfaces can be connected via connectors.

[0023] The working principle described above is as follows: When laying and electrically connecting cables in a low-voltage cable branch box, the cable plug can be inserted into the bottom of the T-junction cable interface housing 10 through its threaded movable auger, and electrically connected to the embedded conductive component 401 inside the T-junction cable interface housing 10. This allows the transmitted current to be delivered to the interior of the embedded conductive component 401, and the split cable 402 electrically connected to the embedded conductive component 401 is then transmitted to the interior of the conductive intermediate module 406. Subsequently, the current transmitted to the conductive intermediate module 406 is delivered to the interior of the conductor 30, and electrically connected to another cable through the external conductive component 20 electrically connected to the conductor 30, thus realizing the current transfer and splitting operation. The multiple split cables 402 transmitting current can split the transmitted current, reducing the current load on each split cable 402 and extending the service life of the split cables 402. The split cable 402 that transmits current can be longitudinally squeezed and fixed by the contact spring 404 inside the insulating sleeve 403, which reduces the probability of the cable interface shaking or shifting when it is vibrated or impacted, and improves the electrical continuity, mechanical stability and service life of the cable interface.

[0024] It should be noted that multiple contact springs 404 are arranged in a ring at equal intervals at the center inside the insulating sleeve 403, with gaps between adjacent contact springs 404, and the middle part inside the insulating sleeve 403 is arranged in an inwardly concave cone shape.

[0025] Specific reference Figure 6 and Figure 7 A threaded sleeve 101 is threadedly connected to one side of the top of the three-way cable interface housing 10, and an embedded tail sleeve 102 is threadedly connected to the other side of the top of the three-way cable interface housing 10. A threaded inner sleeve 103 is threadedly connected to the bottom of the three-way cable interface housing 10. An external plug is inserted and fixed inside the threaded sleeve 101, and an external plug is threadedly connected inside the threaded inner sleeve 103.

[0026] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, the design of the threaded sleeve 101 allows the cable plug connected to it to be screwed into the interior of the three-way cable interface housing 10 and electrically connected to the external conductive component 20 to realize the transmission of current; the design of the threaded inner sleeve 103 allows the cable plug connected to it to be screwed into the interior of the three-way cable interface housing 10 and electrically connected to the embedded conductive component 401 to realize the transmission of current.

[0027] Specific reference Figure 6 and Figure 7 The external conductive component 20 includes: an upper embedded metal block 201 installed at the top inside the three-way cable interface housing 10; a conductor protective sleeve 202 installed at the bottom of the upper embedded metal block 201 and extending to the bottom inside the three-way cable interface housing 10; a conductive electrode plate 203 installed on the inner wall of the upper embedded metal block 201; conductive sockets 204 electrically connected to the front and rear sides of the conductive electrode plate 203; a power transmission module 205 electrically connected between the two conductive sockets 204; a power distribution hub 206 electrically connected to the power transmission module 205 and installed at the top center inside the three-way cable interface housing 10; and a power transmission plug 207 electrically connected to the power transmission module 205 and installed inside the threaded sleeve 101, wherein an external plug is inserted and fixed inside the power transmission plug 207.

[0028] In this scheme, a conductor 30 extending into the metal block 201 is provided through the inner side of the conductor protective sleeve 202. The top of the conductor 30 is connected to a snap-fit ​​plug 301 via a wire. The snap-fit ​​plug 301 is installed inside the intermediate electrical socket 302 and is electrically connected to the intermediate electrical socket 302. The intermediate electrical socket 302 is electrically connected to the center of the side of the conductive electrode sheet 203.

[0029] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, during current transmission, the transmitted current is transmitted through the conductor 30 to the snap-fit ​​plug 301, and then through the intermediate electrical socket 302, which snaps into and is conductively connected to the snap-fit ​​plug 301, to the interior of the conductive electrode plate 203. Afterwards, the current transmitted to the conductive electrode plate 203 is transmitted to the conductive socket 204, and then through the power transmission module 205 conductively connected to the conductive socket 204, to the power transmission plug 207, where it is transmitted to another cable conductively connected to the power transmission plug 207. The design of the power distribution hub 206 integrates the current of multiple stranded cables transmitted centrally, ensuring safety during current transmission.

[0030] Specific reference Figure 6 and Figure 7 The bottom of the power transmission module 205 located at the bottom is electrically connected to a conductive safety protection module 2051. The conductive safety protection module 2051 is installed inside the embedded tail sleeve 102 and is connected to the relay through a wire. The conductive safety protection module 2051 is located on the side of the conductive electrode plate 203.

[0031] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, a conductive safety protection module 2051 is provided at the bottom of the three-way cable interface housing 10 at the tail end of the cable interface. This module can detect the voltage intensity of the entire current transmission in real time, ensuring the safety and stability of the current transmission process. Simultaneously, the conductive safety protection module 2051 is connected to the power transmission module 205 via a plug-in connection. When multiple cable interfaces need to be combined, the conductive safety protection module 2051 inside the head cable interface can be disassembled, and the power transmission module 205 can be connected to the power transmission module 205 inside another cable interface via a connector.

[0032] Specific reference Figure 6 and Figure 7 The embedded conductive component 401 includes: a bottom housing 4011 installed at the bottom inside the three-way cable interface housing 10; an upper connecting housing 4012 threadedly connected to the top inside the bottom housing 4011 and extending above the bottom housing 4011; a split conductive module 4013 installed inside the bottom housing 4011 and extending into the upper connecting housing 4012; a split conductive head 4014 installed at the center inside the split conductive module 4013; conductive pins 4015 electrically connected to the split conductive head 4014 and extending to the bottom inside the split conductive module 4013; and inner insert tabs 4016 installed at the bottom inside the split conductive module 4013 and located on the left and right sides of the conductive pins 4015. The top of the split conductive module 4013 is equipped with an assembly positioning component 405 extending to the outside.

[0033] In this solution, an insulating sleeve 403 is installed above the split conductive head 4014 and is installed inside the split conductive module 4013. The insulating sleeve 403 extends to the outside of the split conductive module 4013, and a split cable 402 is electrically connected to the top of the split conductive head 4014.

[0034] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, when current is transmitted to the threaded cable plug, the current on the cable is transmitted to the conductive pin 4015 that is conductively connected to it, and then transmitted to the interior of the split conductive head 4014 through the conductive pin 4015. Subsequently, the split conductive head 4014 transmits the current to multiple split cables 402 that are conductively connected to it, and then transmits the current to the conductive intermediate module 406 through the split cables 402, achieving a highly safe current transmission operation.

[0035] In this invention, the design of the inner connector 4016 can compress the metal rod part of the socket at the bottom of the split conductive module 4013, further improving the safety and robustness of the cable plug and cable interface during current transmission operations.

[0036] Specific reference Figure 6 and Figure 7 The assembly positioning component 405 includes: a lower embedding block 4051 mounted on top of the split conductive module 4013; an upper embedding port 4052 formed inside the top of the lower embedding block 4051 and located outside the split cable 402; an intermediate embedding block 4053 mounted on top of the lower embedding block 4051 through the upper embedding port 4052; a protrusion 4054 mounted on top of the intermediate embedding block 4053 and located outside the split cable 402; an upper embedding block 4055 mounted on top of the intermediate embedding block 4053 through the protrusion 4054; an outer protective cover 4056 mounted on top of the upper embedding block 4055 and threadedly connected to the outer side of the top of the intermediate embedding block 4053; and a top sealing cap 4057 threadedly connected to the top of the outer protective cover 4056 and extending to the outside.

[0037] In this scheme, a conductive intermediate module 406 is installed on the top of the upper embedded block 4055, located inside the outer protective cover 4056. The conductive intermediate module 406 is located below the top sealing cover 4057, and a conductor 30 is provided through the interior of the top sealing cover 4057.

[0038] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, the stacked lower embedded block 4051, middle embedded block 4053 and upper embedded block 4055 can guide and limit the multiple split cables 402 passing through them, and squeeze and position them vertically. This ensures that the multiple split cables 402 and the insulating sleeve 403 are not prone to shaking due to external interference, thus ensuring the conductivity of the current transmission. At the same time, the limiting and squeezing of the position of the conductive intermediate module 406 can also ensure that the conductivity of the conductive intermediate module 406 is not affected by external interference when the current is transmitted into the conductive intermediate module 406.

[0039] Example 2

[0040] Specific reference Figure 5 and Figure 12 A metal spring 50 is installed on the inner top of the split conductive module 4013 and on the outside of the split cable 402. The metal spring 50 abuts against the outside of the split cable 402. The top of the metal spring 50 abuts against a pressing protrusion 501. The pressing protrusion 501 is installed at the bottom of the lower embedded block 4051 and is located on the outside of the split cable 402. Multiple metal springs 50 are provided.

[0041] In the anti-tangle cable interface of the low-voltage cable branch box of the present invention, the design of the metal spring pieces 50 on the left and right sides of the split cable 402 allows the metal spring pieces 50 that abut against the upper pressing protrusion 501 to be squeezed by the downward pressure of the upper pressing protrusion 501 during the assembly of the split cable 402. This causes the inner center of the metal spring piece 50 to be concave inward and form an inward protrusion, which squeezes the split cable 402 inside the metal spring piece 50. This elastically squeezes and limits the split cable 402 that transmits current, further reducing the probability of the split cable 402 shaking or shifting during use, and improving the electrical continuity, mechanical stability and service life of the current transmission.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0043] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0044] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. A low-voltage cable branch box anti-tangle cable interface, characterized in that, include: A three-way cable interface housing (10); an external conductive component (20) disposed at the top inside the three-way cable interface housing (10); a conductor (30) disposed inside the three-way cable interface housing (10) and electrically connected to the external conductive component (20); and an assembled conductive structure (40) electrically connected to the conductor (30) and installed at the bottom inside the three-way cable interface housing (10), wherein two assembled conductive structures (40) are provided, and both assembled conductive structures (40) are disposed below the external conductive component (20). The assembled conductive structure (40) includes: an embedded conductive component (401) installed at the bottom of the inner part of the three-way cable interface housing (10); a split cable (402) installed inside the embedded conductive component (401) and electrically connected to the external plug; an insulating sleeve (403) sleeved on the outside of the split cable (402) and installed inside the embedded conductive component (401); a plurality of abutment springs (404) disposed at the center inside the insulating sleeve (403); an assembly positioning component (405) installed on the top of the embedded conductive component (401); and a conductive intermediate module (406) installed inside the assembly positioning component (405) and electrically connected to the conductor (30) and the split cable (402) respectively. The split cable (402) has multiple strands, and the internal electrical connection of the embedded conductive component (401) is an external plug.

2. The anti-tangle cable interface for a low-voltage cable branch box according to claim 1, characterized in that: The top side of the three-way cable interface housing (10) is threaded with a threaded sleeve (101), the other side of the top of the three-way cable interface housing (10) is threaded with an embedded tail sleeve (102), and the bottom of the three-way cable interface housing (10) is threaded with a threaded inner sleeve (103). The threaded sleeve (101) is internally connected to an external plug, and the threaded inner sleeve (103) is internally connected to an external plug.

3. The anti-tangle cable interface for a low-voltage cable branch box according to claim 2, characterized in that: The external conductive assembly (20) includes: an upper embedded metal block (201) installed at the top inside the three-way cable interface housing (10); a conductor protective sleeve (202) installed at the bottom of the upper embedded metal block (201) and extending to the bottom inside the three-way cable interface housing (10); a conductive electrode plate (203) installed on the inner wall of the upper embedded metal block (201); conductive sockets (204) electrically connected to the front and rear sides of the conductive electrode plate (203); a power transmission module (205) electrically connected between the two conductive sockets (204); a power distribution hub (206) electrically connected to the power transmission module (205) and installed at the top center inside the three-way cable interface housing (10); and a power transmission plug (207) electrically connected to the power transmission module (205) and installed inside the threaded sleeve (101). The power supply plug (207) has an external plug fixed inside.

4. The anti-tangle cable interface for a low-voltage cable branch box according to claim 3, characterized in that: The inner side of the conductor protective sleeve (202) is provided with a conductor (30) extending into the interior of the upper embedded metal block (201). The top of the conductor (30) is connected to a snap-fit ​​plug (301) via a wire. The snap-fit ​​plug (301) is installed inside the intermediate electrical socket (302) and is electrically connected to the intermediate electrical socket (302). The intermediate electrical socket (302) is electrically connected to the center of the side of the conductive electrode sheet (203).

5. The anti-tangle cable interface for a low-voltage cable branch box according to claim 3, characterized in that: The bottom of the power transmission module (205) located at the bottom is electrically connected to a conductive safety protection module (2051). The conductive safety protection module (2051) is installed inside the embedded tail sleeve (102). The conductive safety protection module (2051) is connected to a relay via a wire. The conductive safety protection module (2051) is disposed on the side of the conductive electrode sheet (203).

6. The anti-tangle cable interface for a low-voltage cable branch box according to claim 5, characterized in that: The embedded conductive component (401) includes: a bottom housing (4011) installed at the bottom inside the three-way cable interface housing (10); an upper connecting housing (4012) threaded to the top inside the bottom housing (4011) and extending above the bottom housing (4011); a split conductive module (4013) installed inside the bottom housing (4011) and extending into the upper connecting housing (4012); a split conductive head (4014) installed at the center inside the split conductive module (4013); conductive pins (4015) electrically connected to the split conductive head (4014) and extending into the bottom inside the split conductive module (4013); and inner inserts (4016) installed at the bottom inside the split conductive module (4013) and located on the left and right sides of the conductive pins (4015). The top of the split conductive module (4013) is equipped with an assembly positioning component (405) extending to the outside.

7. The anti-tangle cable interface for a low-voltage cable branch box according to claim 6, characterized in that: An insulating sleeve (403) is provided above the split conductive head (4014) and installed inside the split conductive module (4013). The insulating sleeve (403) extends to the outside of the split conductive module (4013). A split cable (402) is electrically connected to the top of the split conductive head (4014).

8. The anti-tangle cable interface for a low-voltage cable branch box according to claim 6, characterized in that: The assembly positioning component (405) includes: a lower embedding block (4051) mounted on top of the split conductive module (4013); an upper embedding port (4052) formed inside the lower embedding block (4051) and located outside the split cable (402); an intermediate embedding block (4053) mounted on top of the lower embedding block (4051) through the upper embedding port (4052); a protrusion (4054) mounted on top of the intermediate embedding block (4053) and located outside the split cable (402); an upper embedding block (4055) mounted on top of the intermediate embedding block (4053) through the protrusion (4054); an outer protective cover (4056) mounted on top of the upper embedding block (4055) and threaded to the outer side of the top of the intermediate embedding block (4053); and a top sealing cap (4057) threaded to the top of the outer protective cover (4056) and extending to the outside.

9. The anti-tangle cable interface for a low-voltage cable branch box according to claim 8, characterized in that: The top of the upper embedded block (4055) is equipped with a conductive intermediate module (406) located inside the outer protective cover (4056). The conductive intermediate module (406) is located below the top sealing cover (4057). A conductor (30) is provided through the interior of the top sealing cover (4057).

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