A waterproof secondary module

Abstract

This utility model discloses a waterproof secondary interval module, including a lower secondary interval box and an upper secondary interval box. A circuit board assembly is mounted inside the lower secondary interval box via circuit board fixing screws. The circuit board assembly includes a circuit board with a 33-pin connector, a 16-pin connector, a soldered toggle switch, a relay, and terminals soldered onto it. A groove is formed at the edge of the lower secondary interval box, and a lower box sealing ring is provided inside the groove. The upper and lower secondary interval boxes are connected by bolts and sealed by the lower box sealing ring. A 16-pin socket is integrally mounted on the lower secondary interval box. Mounting bosses are provided on both sides of the 16-pin socket, and clips are installed on the mounting bosses. The 16-pin socket is assembled with the 16-pin connector. This utility model improves efficiency, reduces costs, and lowers assembly difficulty and error rate.

Description

Technical Field

[0001] This utility model relates to the field of secondary module technology, specifically a waterproof spacer secondary module. Background Technology

[0002] In the power distribution field, 12 kV primary and secondary integrated ring main units and power distribution automation terminals are common devices. Among them, bay secondary modules are frequently used. In a typical bay secondary module, independent 33-pin sockets and 16-pin sockets are assembled on the upper box of the bay secondary module. The grounding terminal is disassembled and assembled on the upper box of the bay secondary module. The circuit board is connected to the 33-pin socket and 16-pin socket through wires. This connection method and structural composition affect the assembly efficiency and increase the cost due to the large number of parts. At the same time, the assembly of multiple components leads to more wire connections and assembly steps, which increases the error rate.

[0003] Therefore, designing a secondary module that improves efficiency, reduces costs, and lowers assembly difficulty and error rate is precisely the problem the inventors wanted to solve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof secondary module that can improve efficiency, reduce costs, and reduce assembly difficulty and error rate.

[0005] The technical solution adopted by this utility model device is as follows: a waterproof secondary interval module, comprising a lower secondary interval box and an upper secondary interval box. A circuit board assembly is mounted inside the lower secondary interval box via circuit board fixing screws. The circuit board assembly includes a circuit board on which a 33-pin connector, a 16-pin connector, a soldered toggle switch, a relay, and terminals are soldered. A groove is formed at the edge of the lower secondary interval box, and a lower box sealing ring is provided inside the groove. The upper and lower secondary interval boxes are connected by bolts and sealed by the lower box sealing ring. A 16-pin socket is integrally formed on the lower secondary interval box. Mounting bosses are provided on both sides of the 16-pin socket, and latches are mounted on the mounting bosses. The 16-pin socket is inserted into and assembled with the 16-pin connector. A first opening, opposite to the terminal position, is formed on the end face of the upper secondary interval box and on the side of the latches. A terminal protective cover assembly is provided on the outer side of the first opening via a terminal protective cover sealing ring and a hand-tightening screw. An upper box toggle switch cover is integrally provided on the end face of the secondary upper box and on the side of the terminal protective cover assembly. The upper box toggle switch cover is provided with a toggle switch cover assembly via a toggle switch sealing ring. An upper box 33-pin socket is integrally provided on the secondary upper box. The upper box 33-pin socket is assembled with a 33-pin pin. A grounding terminal assembly is provided at the edge of the secondary upper box. A DTU waterproof connector assembly is provided on the side of the grounding terminal assembly. A 33-pin socket is provided with a 33-pin plug via a plug sealing gasket and a plug fixing screw. The 33-pin plug is assembled with the upper box 33-pin socket. A 16-pin socket is fixed with a 16-pin plug via an upper box socket sealing ring and a buckle. The 16-pin plug is assembled with the upper box 16-pin socket.

[0006] Furthermore, the welded toggle switch is disposed inside the toggle switch cover and toggle switch top cover assembly of the upper box.

[0007] Furthermore, all the wiring terminals are located below the inside of the first opening.

[0008] Furthermore, the grounding terminal assembly includes an injection-molded copper stud, which is integrally formed with the secondary spacer box through injection molding. A locking cap is provided on the outer thread of the upper end of the injection-molded copper stud, and a flat washer is provided on the outer thread of the upper end of the injection-molded copper stud below the locking cap. Two second locking nuts are provided on the outer thread of the lower end of the injection-molded copper stud, and a locking washer is provided between the two second locking nuts.

[0009] Furthermore, the terminal protective cover assembly includes a terminal protective cover, and two sleeves are provided on the end face of the terminal protective cover. A sealing sleeve is provided on the inner side of the end of the sleeve, and a first locking nut is threadedly connected to the outer side of the sleeve and the outer side of the sealing sleeve. Both the first locking nut and the sealing sleeve have through holes in the middle.

[0010] Furthermore, a first recessed structure is provided at the first opening, and the lower end face of the first recessed structure is lower than the upper end face of the wiring terminal.

[0011] Furthermore, a second recessed structure is provided at the 33-pin socket of the upper box.

[0012] Furthermore, the circuit board fixing screws are evenly distributed on the circuit board.

[0013] The beneficial effects of this utility model device are: 1. This utility model integrates a 33-pin socket, a 16-pin socket, and a grounding terminal onto a secondary module, reducing wire connections and installation seams. Combined with sealing elements at multiple component locations, it significantly reduces assembly difficulty and complexity, thereby improving efficiency, reducing costs, and lowering assembly difficulty and error rate. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model.

[0015] Figure 2 This is a top view of the present invention.

[0016] Figure 3 This is the left view of this utility model.

[0017] Figure 4 This is the right view of this utility model.

[0018] Figure 5 This is a cross-sectional view of the terminal block protective cover assembly of this utility model.

[0019] Figure 6 This is a cross-sectional view of the grounding terminal assembly of this utility model.

[0020] Figure 7 yes Figure 6 A magnified view of the area within the middle circle.

[0021] Figure 8 This is a structural view of the injection-molded copper stud of this utility model.

[0022] Figure 9 This is a structural view of the spaced-out double-layer upper box of this utility model.

[0023] Figure 10 This is a structural view of the spaced-out secondary lower box of this utility model.

[0024] Explanation of reference numerals in the attached diagram: 1-Secondary upper box, 101-33-pin socket of upper box, 102-16-pin socket of upper box, 103-Toggle switch cover of upper box, 2-Secondary lower box, 3-Terminal protective cover assembly, 301-Terminal protective cover, 302-First locking nut, 303-Sealing sleeve, 4-33-pin plug, 401-Plug sealing gasket, 402-Plug fixing screw, 5-16-pin plug, 6-Grounding terminal assembly, 601-Flat washer, 602-Second locking nut 603-Locking washer, 604-Injection-molded copper stud, 7-DTU waterproof connector assembly, 8-Toggle switch cover assembly, 9-Circuit board assembly, 901-33-pin connector, 902-16-pin connector, 903-Soldered toggle switch, 904-Relay, 905-Terminal block, 906-Circuit board fixing screw, 10-Lower box sealing ring, 11-Hand-tightening screw, 12-Terminal protective cover sealing ring, 13-Toggle switch sealing ring, 14-Snap-fit, 15-Upper box socket sealing ring. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0026] Example 1: See Figures 1 to 10 This utility model includes a front view, top view, left view, right view, sectional view of the terminal block protective cover assembly, and sectional view of the grounding terminal assembly 6. Figure 6A partial enlarged view of the area circled in the middle, a structural view of the injection-molded copper stud 604, a structural view of the upper secondary box 1, and a structural view of the lower secondary box 2 are shown. A waterproof secondary interleaving module includes a lower secondary box 2 and an upper secondary box 1. A circuit board assembly 9 is mounted inside the lower secondary box 2 via circuit board fixing screws 906. The circuit board assembly 9 includes a circuit board on which 33-pin connectors 901, 16-pin connectors 902, a soldered toggle switch 903, a relay 904, and terminal blocks 905 are soldered. The circuit board fixing screws 906 are evenly distributed throughout the circuit. On the board, to achieve uniform stress distribution and secure the circuit board, these electronic components are placed directly on the front of the circuit board using a soldering fixture. After placement, they are integrated into a wave soldering oven for one-time soldering. This efficiently solves the problem of wasted time and soldering defects caused by secondary or even multiple soldering of other circuit boards, greatly improving production efficiency and product quality. Direct soldering on the circuit board can save nearly 50 wires, effectively solving the routing difficulties caused by wire connections and reducing material costs. At the same time, no secondary assembly is required, effectively solving human assembly errors and improving product quality.

[0027] The edge of the secondary lower box 2 is provided with a groove and the inner side of the groove is provided with a lower box sealing ring 10. The secondary upper box 1 and the secondary lower box 2 are connected by bolts and sealed by the lower box sealing ring 10. After the bolts are tightened, the secondary upper box 1 and the secondary lower box 2 are firmly sealed.

[0028] The upper box 102 is integrally formed with a 16-pin socket 102 on the secondary lower box 2. It is formed in one piece by a mold. The upper box 16-pin socket 102 has mounting bosses on both sides. The mounting bosses are equipped with buckles 14. The 16-pin socket and the 16-pin pin 902 are connected and assembled. The upper box 16-pin socket 102 is fixed with a 16-pin plug 5 by the upper box socket sealing ring 15 and the buckles 14. The 16-pin plug 5 is connected and assembled with the upper box 16-pin socket 102. The mold is made by boldly incorporating front and rear sliders for core pulling, which successfully solves the bottleneck encountered in the mold making process of placing the 16-pin socket into the secondary upper box 1, reduces material and labor consumption, and improves the sealing and waterproof effect.

[0029] A first opening is provided on the end face of the secondary upper box 1 and the side of the buckle 14, which is opposite to the position of the wiring terminal 905. A terminal protective cover assembly 3 is provided on the outside of the first opening through the terminal protective cover sealing ring 12 and the hand screw 11. The wiring terminals 905 are all located on the lower inside of the first opening.

[0030] An upper box toggle switch cover 103 is integrally provided on the end face of the secondary upper box 1 and the side of the terminal protective cover assembly 3. The upper box toggle switch cover 103 is provided with a toggle switch upper cover assembly 8 through the toggle switch sealing ring 13. A welded toggle switch 903 is provided inside the upper box toggle switch cover 103 and the toggle switch upper cover assembly 8.

[0031] The secondary interleaving box 1 is integrally equipped with a 33-pin socket 101, which is formed in one piece by a mold. The 33-pin socket 101 is assembled with a 33-pin pin 901. The 33-pin socket 101 is fitted with a 33-pin plug 4 through a plug sealing gasket 401 and a plug fixing screw 402. The 33-pin plug 4 is assembled with the 33-pin socket 101. The 33-pin socket 101 has a second recessed structure, which brings the lower end of the socket closer to the circuit board, greatly reducing the required pin length and reducing component costs. At the same time, it effectively reduces the overall height of the secondary interleaving module, making it more suitable for low-profile installation spaces. This design solves the material waste and labor time loss caused by the assembly of the 33-pin socket. At the same time, placing the 33-pin socket directly on the secondary interleaving box 1 avoids gaps caused by poor assembly and effectively improves the sealing and waterproof effect at this location.

[0032] A grounding terminal assembly 6 is provided at the edge of the secondary upper box 1. A DTU waterproof connector assembly 7 is provided on the side of the grounding terminal assembly 6. The DTU waterproof connector assembly 7 is fixed on the secondary upper box 1. The external wiring harness is passed through the DTU waterproof connector assembly 7 into the interior of the secondary upper box 1. Each wiring harness is inserted into the corresponding hole in the circuit board assembly 9 of the secondary lower box 2 according to the definition. The wiring harness is then bundled and fixed.

[0033] The grounding terminal assembly 6 includes an injection-molded copper stud 604, which is integrally formed with the secondary spacer box through injection molding. A locking cap is threaded on the outer upper end of the injection-molded copper stud 604. A flat washer 601 is located on the outer upper end of the injection-molded copper stud 604 below the locking cap. Two second locking nuts 602 are threaded on the outer lower end of the injection-molded copper stud 604, and a locking washer 603 is located between the two second locking nuts 602. This structure can firmly and securely fasten the grounding wire, preventing it from falling off. The injection-molded copper stud 604 is then... The injection-molded copper stud 604 is equipped with a limit anti-rotation flat plate. The flat plate is used for positioning, which can both stop rotation and prevent the grounding terminal from moving up and down. After the grounding wire is pressed, the locking washer 603 is used to firmly lock the locking nut, which improves the reliability of the product and ensures the stable operation of the product. This process and structure can effectively solve the problem that the grounding terminal assembly 6 may rotate or even fall off due to the locking nut not being tightened during assembly. It can also prevent poor grounding, increased contact resistance, and the generation of huge heat, which may burn out the equipment or even cause personal safety problems.

[0034] The terminal protective cover assembly 3 includes a terminal protective cover 301. Two sleeves are provided on the end face of the terminal protective cover 301. A sealing sleeve 303 is provided on the inner side of the end of the sleeve. A first locking nut 302 is threadedly connected to the outer side of the sleeve and the outer side of the sealing sleeve 303. Both the first locking nut 302 and the sealing sleeve 303 have through holes in the middle. The waterproof connector of the protective cover is directly designed onto the terminal protective cover 301. During assembly, the sealing sleeve 303 is directly placed on the terminal protective cover 301, and then the first locking nut 302 is screwed on to achieve cable locking and waterproofing. This effectively solves the cumbersome problem of purchasing waterproof connectors, which requires disassembly into individual parts and then tightening and reassembling with special tools. It reduces the number of parts and assembly steps and improves production efficiency.

[0035] A first recessed structure is provided at the first opening, and the lower end face of the first recessed structure is lower than the upper end face of the terminal 905.

[0036] This utility model integrates a 33-pin socket, a 16-pin socket, and a grounding terminal onto a secondary module, reducing wire connections and installation seams. Combined with sealing elements at multiple component locations, it significantly reduces assembly difficulty and complexity, thereby improving efficiency, reducing costs, and lowering assembly difficulty and error rates.

Claims

1. A waterproof secondary module with intervals, characterized in that: The system includes a secondary lower box (2) and a secondary upper box (1). A circuit board assembly (9) is mounted inside the secondary lower box (2) via circuit board fixing screws (906). The circuit board assembly (9) includes a circuit board on which a 33-pin connector (901), a 16-pin connector (902), a soldered toggle switch (903), a relay (904), and a terminal block (905) are soldered. A groove is formed at the edge of the secondary lower box (2), and a lower box sealing ring (10) is provided inside the groove. The secondary upper box (1) and the secondary lower box (2) are... The boxes (2) are connected by bolts and sealed by a lower box sealing ring (10). The upper box 16-pin socket (102) is integrally provided on the secondary lower box (2). The upper box 16-pin socket (102) has mounting bosses on both sides. The mounting bosses are fitted with buckles (14). The 16-pin socket is connected to the 16-pin pin (902). The end face of the secondary upper box (1) and the side of the buckle (14) have a first opening opposite to the position of the wiring terminal (905). The outside of the first opening is sealed by a terminal protective cover sealing ring (12). A terminal protective cover assembly (3) is provided on the hand-tightening screw (11). An upper box toggle switch cover (103) is integrally provided on the end face of the secondary upper box (1) and the side of the terminal protective cover assembly (3). An upper box toggle switch cover (103) is provided with a toggle switch cover assembly (8) through a toggle switch sealing ring (13). An upper box 33-pin socket (101) is integrally provided on the secondary upper box (1). The upper box 33-pin socket (101) is connected to a 33-pin pin (901). A grounding terminal assembly (6) is provided at the edge of the secondary upper box (1). The grounding terminal assembly (6) is provided with a DTU waterproof connector assembly (7) on its side. The upper box 33-pin socket (101) is provided with a 33-pin plug (4) through a plug sealing gasket (401) and a plug fixing screw (402). The 33-pin plug (4) is connected to the upper box 33-pin socket (101) for assembly. The upper box 16-pin socket (102) is fixed with a 16-pin plug (5) through an upper box socket sealing ring (15) and a buckle (14). The 16-pin plug (5) is connected to the upper box 16-pin socket (102) for assembly.

2. The waterproof secondary module according to claim 1, characterized in that: The welded toggle switch (903) is located inside the toggle switch cover (103) and the toggle switch cover assembly (8) of the upper box.

3. The waterproof secondary module according to claim 1, characterized in that: The terminals (905) are all located below the inside of the first opening.

4. A waterproof secondary module according to claim 1, characterized in that: The grounding terminal assembly (6) includes an injection-molded copper stud (604), which is integrally formed with the secondary spacer box by injection molding. The upper outer thread of the injection-molded copper stud (604) is provided with a locking cap. A flat washer (601) is provided on the upper outer side of the injection-molded copper stud (604) and below the locking cap. Two second locking nuts (602) are provided on the lower outer thread of the injection-molded copper stud (604), and a locking washer (603) is provided between the two second locking nuts (602).

5. A waterproof secondary module according to claim 1, characterized in that: The terminal protective cover assembly (3) includes a terminal protective cover (301). Two sleeves are provided on the end face of the terminal protective cover (301). A sealing sleeve (303) is provided on the inner side of the end of the sleeve. A first locking nut (302) is threadedly connected to the outer side of the sleeve and the outer side of the sealing sleeve (303). Both the first locking nut (302) and the sealing sleeve (303) have through holes in the middle.

6. A waterproof secondary module according to claim 1, characterized in that: A first recessed structure is provided at the first opening, and the lower end face of the first recessed structure is lower than the upper end face of the wiring terminal (905).

7. A waterproof secondary module according to claim 1, characterized in that: A second recessed structure is provided at the 33-pin socket (101) of the upper box.

8. A waterproof secondary module according to claim 1, characterized in that: The circuit board fixing screws (906) are evenly distributed on the circuit board.

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