Interval secondary wire harness integration module

By optimizing the integrated module structure of the secondary wiring harness in the ring main unit, and adopting a waterproof shell and pluggable terminals, the problems of large size, high wiring error rate and poor waterproof performance in the existing technology have been solved, achieving a miniaturized wiring effect with excellent waterproof performance.

CN224138378UActive Publication Date: 2026-04-17GOODALL ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GOODALL ELECTRIC CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing ring main unit's bay secondary wiring harness integrated module structure design is unreasonable, resulting in large size, high wiring error rate, and poor waterproof performance, especially in humid environments where it is prone to poor contact or short circuit.

Method used

The design incorporates a base plate, terminals, circuit board, and waterproof housing. The terminals and circuit board are fixed inside the waterproof housing, and the conductive pins are directly soldered to the circuit board. The wiring method has been changed to a plug-in type. Waterproof structures such as waterproof connectors and waterproof sleeves have been added. Nylon flame-retardant materials are used, and the conductive pins and cables are fixed by welding.

Benefits of technology

This design achieves a small product size, simple wiring, and good waterproof performance, reducing the wiring error rate and improving the product's practicality and ease of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an interval secondary wiring harness integration module, which comprises a bottom plate, a wiring terminal, a circuit board and a waterproof shell, the wiring terminal and the circuit board are both arranged in the waterproof shell, the wiring terminal is fixedly arranged on the upper end face of the circuit board, and the waterproof shell is arranged on the wiring terminal. The circuit board is also fixedly provided with a conductive pin, a circuit breaker, a relay, a resistor and a capacitor, and the upper end surface of the waterproof housing is provided with a grounding pile, a first waterproof joint, a heavy load connector pedestal, a circuit breaker protection pedestal, a circuit breaker visual transparent waterproof cover and a wiring terminal protection cover plate. The first waterproof joint is provided with a multi-core cable, the multi-core cable is sleeved with a cable protection sleeve and a waterproof sleeve, and the end, away from the first waterproof joint, of the multi-core cable is provided with a heavy-load connector. According to the technical scheme, the structure design is reasonable, the size is small, installation is convenient, wiring is easy, waterproof performance is good, and practicability is good.
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Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, specifically to an integrated module for a secondary wiring harness. Background Technology

[0002] A ring main unit is an electrical device that houses a group of power transmission and distribution equipment in a metal or non-metal insulated cabinet or is assembled into a modular ring main unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety.

[0003] However, the existing integrated modules for secondary wiring harnesses in the incoming and outgoing cabinets of ring main units are bulky due to unreasonable structural design, resulting in limited space utilization during customer installation. The wiring method generally involves inserting terminals through number tubes, crimping them, and then fixing them with screws. The conductive pins are installed by crimping, which has a high error rate. The waterproof performance is poor, and it is prone to poor contact or short circuits in humid environments. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated module for spaced secondary wire harnesses that has a reasonable structural design, small size, convenient installation, easy wiring, good waterproof performance, and good practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated module for a secondary wiring harness, comprising a base plate, terminals, a circuit board, and a waterproof housing. The terminals and the circuit board are both housed within the waterproof housing. The terminals are fixedly mounted on the upper surface of the circuit board. The circuit board is also fixedly provided with conductive pins, a circuit breaker, a relay, a resistor, and a capacitor. The upper surface of the waterproof housing is provided with a grounding post, a first waterproof connector, a heavy-duty connector base, a circuit breaker protective base, a circuit breaker visible transparent waterproof cover, and a terminal protective cover. A multi-core cable is mounted on the first waterproof connector. The multi-core cable is fitted with a cable protective sleeve and a waterproof sleeve. A heavy-duty connector is mounted on the end of the multi-core cable opposite to the first waterproof connector.

[0006] The present invention is further configured such that: a second waterproof connector is provided on the upper surface of the terminal protective cover, and a spare cable is provided on the second waterproof connector; the heavy-duty connector is a 33-core heavy-duty connector, the outer end of the multi-core cable is connected to the heavy-duty connector, and the inner end of the multi-core cable passes through the first waterproof connector and is welded and fixed to the circuit board.

[0007] The present invention is further configured such that: the number of conductive pins is 16, and the conductive pins are distributed in a rectangular shape; the upper end face of the waterproof shell is provided with a pin through hole aligned with the position of the conductive pin; the heavy-duty connector base is located at the upper port position of the pin through hole; the lower end of the conductive pin is welded and fixed to the upper end face of the circuit board; the upper end of the conductive pin extends into the heavy-duty connector base; and the heavy-duty connector base is a 16-pin heavy-duty connector base; the heavy-duty connector base is connected and fixed to the upper end face of the waterproof shell by screws.

[0008] The present invention is further configured such that: the upper end face of the waterproof housing is provided with a housing protrusion aligned with the upper end face of the circuit breaker, the housing protrusion is provided with a circuit breaker mounting cavity, the upper end face of the housing protrusion is provided with a circuit breaker mounting through hole, the circuit breaker protective base is provided at the upper port of the circuit breaker mounting through hole, and the circuit breaker protective base is fixed to the upper end face of the housing protrusion by screws, and the upper end of the circuit breaker protective base is hinged to the visible transparent waterproof cover of the circuit breaker by a pin or bolt.

[0009] The present invention is further configured such that: the wiring terminal is a pluggable wiring terminal, and bolt fixing parts are provided at both ends of the wiring terminal.

[0010] The present invention is further configured such that: the base plate is a nylon flame-retardant and waterproof base plate, the waterproof shell is a nylon flame-retardant and waterproof shell, the base plate and the waterproof shell are connected and fixed by screws, and connecting protrusions are provided at both the left and right ends of the base plate, and connecting through holes are provided on the upper surface of the connecting protrusions.

[0011] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has a reasonable structural design, the improved product is smaller in size, and the customer can utilize more space during installation. The wiring method has been upgraded from the original method of passing the terminal through the number tube, crimping, and then fixing it with screws to connecting the cable with copper foil on the circuit board. All cable positions are fixed with solder. The conductive pins are directly soldered to the circuit board, reducing the error rate and improving quality assurance. The waterproof shell, the first waterproof connector, the circuit breaker protective base, the circuit breaker visible transparent waterproof cover, the terminal protective cover, the cable protective sleeve, the waterproof sleeve, and the second waterproof connector are all reasonably designed and have good waterproof performance. The terminals are pluggable terminals, which are easy to connect, convenient to install, and practical.

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2This is an exploded view of an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the waterproof outer shell according to an embodiment of the present invention. Detailed Implementation

[0016] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] See Figures 1 to 3 This utility model discloses an integrated module for a secondary wiring harness, comprising a base plate 1, terminal blocks 2, a circuit board 3, and a waterproof housing 4. The terminal blocks 2 and the circuit board 3 are both disposed within the waterproof housing 4. The terminal blocks 2 are fixedly mounted on the upper surface of the circuit board 3. The circuit board 3 is also fixedly disposed on conductive pins 5, a circuit breaker 6, a relay 7, a resistor 8, and a capacitor 9. The upper surface of the waterproof housing 4 is provided with a grounding post 10, a first waterproof connector 11, a heavy-duty connector base 12, a circuit breaker protective base 13, a circuit breaker visible transparent waterproof cover 14, and a terminal block protective cover 15. A multi-core cable 16 is disposed on the first waterproof connector 11. The multi-core cable 16 is fitted with a cable protective sleeve 17 and a waterproof sleeve 18. A heavy-duty connector 19 is disposed on the multi-core cable 16 away from the end of the first waterproof connector.

[0018] Preferably, the terminal block 2 is fixed to the upper surface of the circuit board 3 by adhesive bonding or screw connection; the circuit breaker 6, relay 7, resistor 8, and capacitor 9 are all welded to the upper surface of the circuit board 3; the grounding stake 10 is integrally formed with the upper surface of the waterproof housing 4, or fixed by threaded connection or adhesive bonding; the upper surface of the waterproof housing 4 is provided with a connector mounting through hole, and the first waterproof connector 11 is threaded to the connector mounting through hole or fixed by adhesive bonding; the multi-core cable 16, facing away from the first waterproof connector end, is fixed to the heavy-duty connector 19 by welding, crimping, or locking with a terminal block. Copper foil is laid on the circuit board 3 to achieve electrical connection between various lines, meeting standardized customer requirements.

[0019] To make the structural design of this utility model more reasonable, as a preferred embodiment, a second waterproof connector 20 is provided on the upper surface of the terminal protective cover 15, and a spare cable 21 is provided on the second waterproof connector 20; the heavy-duty connector 19 is a 33-core heavy-duty connector, the outer end of the multi-core cable 16 is connected to the heavy-duty connector 19, and the inner end of the multi-core cable 16 passes through the first waterproof connector 11 and is welded and fixed to the circuit board 3.

[0020] The number of conductive pins 5 is 16, and the conductive pins 5 are distributed in a rectangular shape; the upper end face of the waterproof shell 4 is provided with a pin through hole 41 aligned with the position of the conductive pin; the heavy-duty connector base 12 is located at the upper port position of the pin through hole 41; the lower end of the conductive pin 5 is welded and fixed to the upper end face of the circuit board 3; the upper end of the conductive pin 5 extends into the heavy-duty connector base 12; and the heavy-duty connector base 12 is a 16-pin heavy-duty connector base; the heavy-duty connector base 12 is connected and fixed to the upper end face of the waterproof shell 4 by screws.

[0021] The upper end of the waterproof housing 4 is aligned with the upper end of the circuit breaker 6 and has a housing protrusion 42. The housing protrusion 42 has a circuit breaker mounting cavity. The upper end of the housing protrusion 42 has a circuit breaker mounting through hole 421. The circuit breaker protective base 13 is located at the upper port of the circuit breaker mounting through hole 421 and is fixed to the upper end of the housing protrusion 42 by screws. The upper end of the circuit breaker protective base 13 is hinged to the visible transparent waterproof cover 14 of the circuit breaker by a pin or bolt.

[0022] The terminal block 2 is a pluggable terminal block, and both ends of the terminal block 2 are provided with bolt fasteners. Preferably, the terminal block 2 is an existing quick-plug terminal block, and both ends of the terminal block 2 are provided with bolt holes or positioning clips.

[0023] The base plate 1 is a nylon flame-retardant and waterproof base plate, and the waterproof shell 4 is a nylon flame-retardant and waterproof shell. The base plate 1 and the waterproof shell 4 are connected and fixed by screws. Connecting protrusions 101 are provided at both the left and right ends of the base plate 1, and connecting through holes 102 are provided on the upper surface of the connecting protrusions 101.

[0024] In practical applications, base plate 1 is used for final product encapsulation and on-site installation and fixation; terminal blocks 2 provide quick-plug connection without bolt tightening, making it more convenient and faster, and have fixing bolts on both sides to prevent loosening during installation; circuit board 3 is covered with copper foil as required to achieve the connection between various circuits and meet standardized customer needs; waterproof housing 4 provides better protection for internal components and their matching installation; conductive pin 5 is used for quick installation of external wiring, this conductive pin is a male pin, and the external wiring terminal is a female pin; circuit breaker 6 is the main control module's power supply, providing protection and safe electricity use; relay 7 ensures stable operation, resistor 8 effectively protects the relay's voltage stability when energized, capacitor 9 protects the stable operation of the circuit; grounding stake 10 provides effective grounding protection for the product; first protection Water connector 11 and second waterproof connector 20 effectively prevent condensation and dust from entering when the cable passes through; heavy-duty connector base 12 connects to the existing 16-pin heavy-duty connector plug; circuit breaker protective base 13 facilitates circuit breaker installation and fits snugly against the protective housing; circuit breaker visible transparent waterproof cover 14 effectively prevents condensation on the circuit breaker; terminal protective cover 15 prevents condensation or dust accumulation on the terminal blocks; multi-core cable 16 effectively connects circuit board 3 and heavy-duty connector 19; cable protective sleeve 17 prevents scratches on the cable during manufacturing or installation; waterproof sleeve 18 has internal adhesive to effectively prevent movement of the cable and cable protective sleeve; heavy-duty connector 19 connects to external cables, enabling effective connection and transmission of various signals; spare cable 21 is reserved for customer use.

[0025] The improved product is smaller in size, allowing for more space utilization during installation. The wiring method has been upgraded from the original method of threading terminals through number tubes, crimping, and then fixing with screws to connecting the cables via copper foil on the circuit board. All cable positions are fixed with solder. The conductive pins are directly soldered to the circuit board, reducing the error rate and improving quality assurance. The waterproof shell, first waterproof connector, circuit breaker protective base, circuit breaker visible transparent waterproof cover, terminal protective cover, cable protective sleeve, waterproof sleeve, and second waterproof connector have a reasonable structural design and good waterproof performance. The terminals are pluggable terminals, which are easy to connect, convenient to install, and practical.

[0026] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A secondary wiring harness integrated module, comprising a base plate (1), terminals (2), a circuit board (3), and a waterproof housing (4), wherein the terminals (2) and the circuit board (3) are both disposed within the waterproof housing (4), and the terminals (2) are fixedly mounted on the upper surface of the circuit board (3), characterized in that: The circuit board (3) is also fixedly provided with conductive pins (5), circuit breakers (6), relays (7), resistors (8) and capacitors (9). The upper surface of the waterproof housing (4) is provided with grounding posts (10), first waterproof connectors (11), heavy-duty connector bases (12), circuit breaker protective bases (13), circuit breaker visible transparent waterproof covers (14) and terminal protective covers (15). The first waterproof connector (11) is provided with multi-core cables (16). The multi-core cables (16) are fitted with cable protective sleeves (17) and waterproof sleeves (18). The multi-core cables (16) are provided with heavy-duty connectors (19) away from the end of the first waterproof connector.

2. The module of claim 1, wherein: The upper surface of the terminal protective cover (15) is provided with a second waterproof connector (20), and a spare cable (21) is provided on the second waterproof connector (20); the heavy-duty connector (19) is a 33-core heavy-duty connector, the outer end of the multi-core cable (16) is connected to the heavy-duty connector (19), and the inner end of the multi-core cable (16) passes through the first waterproof connector (11) and is welded and fixed to the circuit board (3).

3. The integrated module of claim 2, wherein: The number of conductive pins (5) is 16, and the conductive pins (5) are distributed in a rectangular shape; the upper end of the waterproof shell (4) is provided with a pin through hole (41) aligned with the position of the conductive pin; the heavy-duty connector base (12) is located at the upper port position of the pin through hole (41); the lower end of the conductive pin (5) is welded and fixed to the upper end of the circuit board (3); the upper end of the conductive pin (5) extends into the heavy-duty connector base (12); and the heavy-duty connector base (12) is a 16-pin heavy-duty connector base; the heavy-duty connector base (12) is connected and fixed to the upper end of the waterproof shell (4) by screws.

4. The integrated module of claim 3, wherein: The upper end of the waterproof housing (4) is aligned with the upper end of the circuit breaker (6) and a housing protrusion (42) is provided. The housing protrusion (42) is provided with a circuit breaker mounting cavity. The upper end of the housing protrusion (42) is provided with a circuit breaker mounting through hole (421). The circuit breaker protective base (13) is located at the upper port of the circuit breaker mounting through hole (421). The circuit breaker protective base (13) is connected and fixed to the upper end of the housing protrusion (42) by screws. The upper end of the circuit breaker protective base (13) is hinged to the visible transparent waterproof cover (14) of the circuit breaker by a pin or bolt.

5. The integrated module of claim 4, wherein: The terminal block (2) is a pluggable terminal block, and bolt fasteners are provided at both ends of the terminal block (2).

6. The module of claim 5, wherein: The base plate (1) is a nylon flame-retardant and waterproof base plate, and the waterproof shell (4) is a nylon flame-retardant and waterproof shell. The base plate (1) and the waterproof shell (4) are connected and fixed by screws. Both the left and right ends of the base plate (1) are provided with connecting protrusions (101), and the upper surface of the connecting protrusions (101) is provided with connecting through holes (102).