Male head connector with good waterproof effect
By incorporating waterproof rings on the outer surfaces of the signal and power terminals of the male connector and securing them with nuts, the problem of poor waterproofing performance in existing male connectors is solved, resulting in better waterproofing and a longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHENGYI PRECISION MFG CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-05
AI Technical Summary
Existing male connectors have poor waterproof performance, allowing external water to easily enter and cause damage to the connectors, posing safety hazards. They also have poor product quality and short service life.
It adopts a combined structure design of front shell, signal terminals, power terminals, waterproof ring and rear cover. The waterproof effect is enhanced by setting waterproof ring on the outer side of the contact part and installing waterproof ring in the slot and fixing it with nut.
It effectively prevents water from entering through the gaps between the plug and the signal and power terminals, improving the connector's waterproof performance, enhancing safety and product quality, and extending its service life.
Smart Images

Figure CN224204453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, and in particular to a male connector with good waterproof performance. Background Technology
[0002] Power connectors, also known as circuit connectors or electrical connectors, are conductive devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to the other. A power connector is an electrical system that provides a separable interface for connecting two electronic systems. Simply put, a connector is a component used to complete the electrical connection between circuits or electronic devices; it is the bridge between the two. Examples include power plugs / sockets, IC sockets, telephone line plugs, etc.
[0003] Power connectors are widely used in various electrical circuits to connect or disconnect current or signals. This connection can be temporary and easily plugged in and out, or it can be a permanent connection between electrical equipment or wires. Power connectors are divided into male connectors and female connectors; male connectors and female connectors are mated together to establish a conductive connection in the circuit.
[0004] Current male connectors generally consist of a housing, multiple signal terminals, and two power terminals. These terminals are fixed into slots on the housing. While this structure is relatively simple and enables basic connection and circuit conduction, male connectors have poor waterproofing. External water can easily enter the connector through gaps between the connector plug and signal terminals, and between the connector plug and power terminals, causing damage and posing significant safety hazards. This results in poor product quality, a short lifespan, and inconvenience for users, failing to meet current needs. Therefore, it is necessary to research a new technical solution to improve current male connectors. Utility Model Content
[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a male connector with good waterproof performance. It can effectively solve the problems of poor waterproof performance of existing male connectors, where external water can easily enter the male connector through the gap between the plug and signal terminal of the housing, and the gap between the plug and power terminal of the housing, causing damage to the male connector, posing a significant safety hazard, poor product quality, and short product life.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A waterproof male connector includes a front shell, multiple signal terminals, multiple first waterproof rings, two power terminals, two second waterproof rings, and a rear cover. The front shell includes a main body and a plug extending forward from the main body for mating with a female connector. The plug is provided with multiple first slots and two second slots. The multiple signal terminals are embedded in the front shell. Each signal terminal includes a first contact portion and a first wiring portion. The first contact portion is disposed in a first slot, and a first mounting groove is provided on the outer side of the first contact portion. The first wiring portion extends outward from the front shell. The first waterproof rings are respectively disposed in the corresponding first mounting grooves and the plurality of first waterproof rings are respectively located in the corresponding first slots; the two power terminals are embedded in the front shell, each power terminal including a second contact portion and a second wiring portion, the second contact portion being disposed in the second slot, the outer side of the second contact portion being provided with a second mounting groove, and the second wiring portion extending outward from the front shell; the two second waterproof rings are respectively disposed in the corresponding second mounting grooves and the two second waterproof rings are respectively located in the corresponding second slots; the rear cover is disposed on the rear side of the front shell and covers the plurality of signal terminals and the two power terminals.
[0008] As a preferred embodiment, the outer side of the plug is provided with a third mounting groove, and a third waterproof ring is further provided. The third waterproof ring is disposed in the third mounting groove and fixed in place. When the male connector and the female connector are inserted into each other, the third waterproof ring on the outer side of the plug can achieve a good waterproof function.
[0009] As a preferred embodiment, the front side of the main body is provided with a fourth mounting groove, which is located around the plug. A fourth waterproof ring is further provided, which is disposed in the fourth mounting groove and fixed in place. The fourth waterproof ring can effectively prevent water from entering from the gap between the panel and the male connector, thus playing a good waterproof role.
[0010] As a preferred embodiment, the main body has positioning holes on its left and right sides, and two nuts for fixing with external screws are further provided. The two nuts are respectively set in the corresponding positioning holes. Tightening the screws and nuts can compress the fourth waterproof ring, thereby achieving a better waterproof effect.
[0011] As a preferred option, the first waterproof ring is a corrugated waterproof ring, which has good waterproof function.
[0012] As a preferred option, the second waterproof ring is a corrugated waterproof ring, which has good waterproof function.
[0013] As a preferred embodiment, the rear side of the front shell is recessed inward with a groove that communicates with multiple first slots and two second slots. The rear cover is disposed in the groove, and the rear cover and the front shell together form a mounting cavity. Multiple first wires and two second wires are further provided. One end of each of the multiple first wires is connected to a corresponding first connector. One end of each of the multiple first wires and the multiple first connectors are disposed in the mounting cavity. The other end of each of the multiple first wires extends outward from the front shell and the rear cover. One end of each of the two second wires is connected to a corresponding second connector. One end of each of the two second wires and the two second connectors are disposed in the mounting cavity. The other end of each of the two second wires extends outward from the front shell and the rear cover. The rear cover can press down on multiple signal terminals and two power terminals, preventing the multiple signal terminals and two power terminals from retracting or loosening, thus improving product quality.
[0014] As a preferred embodiment, the rear end of the main body is provided with a rearwardly extending portion, the outer side of which is provided with a first through hole, and the outer side of the rear cover is provided with a second through hole, which communicates with the mounting cavity and the first through hole. A positioning block is further provided, which is disposed in the first and second through holes to connect and fix the front shell and the rear cover, effectively enhancing the stability of the connection structure between the front shell and the rear cover, and making assembly convenient and quick.
[0015] As a preferred embodiment, the signal terminal includes a first terminal sleeve and a first crown spring terminal. The front end of the first terminal sleeve is recessed inward and has a first fixing groove. The outer side of the first terminal sleeve is provided with the aforementioned first mounting groove. The rear end of the first terminal sleeve is bent and extends out to form the aforementioned first wiring portion. The first crown spring terminal is disposed in the first fixing groove for fixed engagement. The structural design of the first crown spring terminal makes the contact of the signal terminal more stable, increases the number of contact points of the terminal, and makes the conduction current more stable and reliable, with a stronger flow capacity.
[0016] As a preferred embodiment, the power terminal includes a second terminal sleeve, a second crown spring terminal, and an OT terminal. The front end of the second terminal sleeve is recessed with a second fixing groove, and the outer side of the second terminal sleeve is provided with the aforementioned second mounting groove. The rear end of the second terminal sleeve is provided with a riveting part. The second crown spring terminal is disposed in the second fixing groove for fixation. One end of the OT terminal is provided with a riveting hole. After the riveting part passes through the riveting hole, it is riveted and flanged to form a more stable and reliable connection structure. The other end of the OT terminal is provided with the aforementioned second wiring part. The structural design of the second crown spring terminal makes the contact of the power terminal more stable, the terminal has more contact points, the conduction current is more stable and reliable, and the current flow is stronger.
[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:
[0018] By providing a first mounting groove on the outer side of the first contact portion of the signal terminal, a first waterproof ring is placed in the first mounting groove, and the first contact portion and the first waterproof ring are located in a first slot. Similarly, by providing a second mounting groove on the outer side of the second contact portion of the power terminal, a second waterproof ring is placed in the second mounting groove, and the second contact portion and the second waterproof ring are located in a second slot. This structure of the male connector effectively enhances its waterproof performance, making it difficult for external water to enter the male connector through the gaps between the plug and the signal terminal, and between the plug and the power terminal. This provides good waterproofing, prevents damage to the male connector, improves safety during use, enhances product quality, extends product lifespan, brings convenience to users, and meets current needs.
[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;
[0022] Figure 3 This is an exploded view of a preferred embodiment of the present invention;
[0023] Figure 4 This is an exploded view from another angle of a preferred embodiment of the present invention;
[0024] Figure 5 This is a cross-sectional view of a preferred embodiment of the present invention;
[0025] Figure 6 This is a partial structural schematic diagram of a preferred embodiment of the present utility model;
[0026] Figure 7 This is an exploded view of the signal terminal in a preferred embodiment of the present invention;
[0027] Figure 8 This is an exploded view of the power supply terminals in a preferred embodiment of the present invention;
[0028] Figure 9 This is an exploded view of the power terminal from another angle in a preferred embodiment of the present invention.
[0029] Explanation of reference numerals in the attached diagram:
[0030] 10. Front shell 11. Main body
[0031] 111. Fourth mounting slot; 112. Positioning hole
[0032] 12. Plug 121. Third mounting slot
[0033] 13. Extension 131. First through hole
[0034] 101. First slot; 102. Second slot
[0035] 103, Groove 20, Signal Terminal
[0036] 21. First contact portion; 211. First mounting groove
[0037] 22. First wiring section; 23. First terminal sleeve
[0038] 231, First fixing groove; 24, First crown spring terminal
[0039] 30. First waterproof ring; 40. Power terminal
[0040] 41. Second contact portion; 411. Second mounting groove
[0041] 42. Second wiring section; 43. Second terminal sleeve
[0042] 431. Second fixing groove; 432. Riveting part
[0043] 44. Second crown spring terminal; 45. OT terminal
[0044] 451, Riveting hole 50, Second waterproof ring
[0045] 60. Back cover; 61. Second through hole
[0046] 601, Mounting cavity 70, Third waterproof ring
[0047] 80. Fourth waterproof ring; 90. Nut
[0048] 100, First wire; 110, Second wire
[0049] 120. Positioning block. Detailed Implementation
[0050] Please refer to Figures 1 to 9 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a front cover 10, multiple signal terminals 20, multiple first waterproof rings 30, two power terminals 40, two second waterproof rings 50, and a rear cover 60.
[0051] The front housing 10 includes a main body 11 and a plug 12 extending forward from the main body 11 for mating with a female connector. The plug 12 is provided with a plurality of first slots 101 and two second slots 102. In this embodiment, the outer side of the plug 12 is provided with a third mounting groove 121 and a third waterproof ring 70. The third waterproof ring 70 is disposed in the third mounting groove 121 and fixed in place. When the male connector and the female connector are mated, the third waterproof ring 70 on the outer side of the plug 12 can achieve a good waterproof function. The third waterproof ring 70 is a corrugated waterproof ring. The front side of the main body 11 is provided with a fourth mounting groove 111, which is located around the plug 12. The fourth mounting groove 111 is further provided with a fourth waterproof ring 80. The fourth waterproof ring 80 is disposed in the fourth mounting groove 121. The fourth waterproof ring 80 is fixed in the groove 111 and can effectively prevent water from entering through the gap between the panel and the male connector, thus providing a good waterproof effect. The fourth waterproof ring 80 is a corrugated waterproof ring. The left and right sides of the main body 11 are provided with positioning holes 112, and two nuts 90 are further provided for fixing with external screws. The two nuts 90 are respectively set in the corresponding positioning holes 112. Tightening the screws and nuts 90 can compress the fourth waterproof ring 80, thereby achieving a better waterproof effect. The rear side of the front shell 10 is recessed with a groove 103, which communicates with multiple first slots 101 and two second slots 102. The rear end of the main body 11 is provided with a rearwardly extending extension 13, and the outer side of the extension 13 is provided with a first through hole 131.
[0052] The multiple signal terminals 20 are embedded in the front housing 10. Each signal terminal 20 includes a first contact portion 21 and a first wiring portion 22. The first contact portion 21 is disposed in a first slot 101, and a first mounting groove 211 is provided on the outer side of the first contact portion 21. The first wiring portion 22 extends outward from the front housing 10. In this embodiment, the signal terminal 20 includes a first terminal sleeve 23 and a first crown spring terminal 24. The front end of the first terminal sleeve 23 is recessed inward with a first fixing groove 231. The outer side of the first terminal sleeve 23 is provided with the aforementioned first mounting groove 211. The rear end of the first terminal sleeve 23 is bent and extends outward from the aforementioned first wiring portion 22. The first crown spring terminal 24 is disposed in the first fixing groove 231 for fixation. The structural design of the first crown spring terminal 24 makes the contact of the signal terminal 20 more stable, the terminal has more contact points, the conduction current is more stable and reliable, and the flow rate is stronger.
[0053] The plurality of first waterproof rings 30 are respectively disposed in the corresponding first mounting grooves 211 and the plurality of first waterproof rings 30 are respectively located in the corresponding first slots 101; in this embodiment, the first waterproof ring 30 is a corrugated waterproof ring, which has good waterproof function.
[0054] The two power terminals 40 are embedded in the front housing 10. Each power terminal 40 includes a second contact portion 41 and a second wiring portion 42. The second contact portion 41 is disposed in the second slot 102, and the outer side of the second contact portion 41 is provided with a second mounting groove 411. The second wiring portion 42 extends outward from the front housing 10. In this embodiment, the power terminal 40 includes a second terminal sleeve 43, a second crown spring terminal 44, and an OT terminal 45. The front end of the second terminal sleeve 43 is recessed inward with a second fixing groove 431, and the outer side of the second terminal sleeve 43 is provided with a second mounting groove 431. The second mounting groove 411 is provided with a riveting part 432 at the rear end of the second terminal sleeve 43. The second crown spring terminal 44 is provided in the second fixing groove 431 for fixed cooperation. One end of the OT terminal 45 is provided with a riveting hole 451. The riveting part 432 passes through the riveting hole 451 and is riveted and flanged to form a more stable and reliable connection structure. The other end of the OT terminal 45 is provided with the second wiring part 42. The structural design of the second crown spring terminal 44 makes the contact of the power terminal 40 more stable, the terminal has more contact points, the conduction current is more stable and reliable, and the flow is stronger.
[0055] The two second waterproof rings 50 are respectively disposed in the corresponding second mounting grooves 411 and the two second waterproof rings 50 are respectively located in the corresponding second slots 102; in this embodiment, the second waterproof ring 50 is a corrugated waterproof ring, which has good waterproof function.
[0056] The rear cover 60 is disposed on the rear side of the front shell 10 and covers multiple signal terminals 20 and two power terminals 40. In this embodiment, the rear cover 60 is disposed in the groove 103, and the rear cover 60 and the front shell 10 form a mounting cavity 601. Multiple first wires 100 and two second wires 110 are further disposed thereon. One end of each of the multiple first wires 100 is connected to a corresponding first connector 22. One end of each of the multiple first wires 100 and the multiple first connectors 22 are disposed in the mounting cavity 601. The other ends of the multiple first wires 100 extend outward from the front shell 10 and the rear cover 60. One end of each of the two second wires 110 is connected to a corresponding second connector 42. One end of the 10 and the two second wiring portions 42 are disposed in the mounting cavity 601. The other ends of the two second wires 110 extend outward to form the front shell 10 and the rear cover 60. The rear cover 60 can press down multiple signal terminals 20 and two power terminals 40 to prevent the multiple signal terminals 20 and two power terminals 40 from retracting or loosening, thereby improving the quality of the product. A second through hole 61 is provided on the outer side of the rear cover 60. The second through hole 61 communicates with the mounting cavity 601 and the first through hole 131. A positioning block 120 is further provided. The positioning block 120 is disposed in the first through hole 131 and the second through hole 61 to connect and fix the front shell 10 and the rear cover 60, thereby effectively enhancing the stability of the connection structure between the front shell 10 and the rear cover 60.
[0057] The manufacturing and assembly process of this embodiment is described in detail below:
[0058] First, prepare multiple signal terminals 20, multiple first waterproof rings 30, two power terminals 40, two second waterproof rings 50, a back cover 60, a third waterproof ring 70, a fourth waterproof ring 80, two nuts 90, multiple first wires 100, two second wires 110, and a positioning block 120. Next, install the multiple first waterproof rings 30 into the corresponding first mounting slots 211 of the signal terminals 20, connect one end of each of the multiple first wires 100 to the corresponding first wiring portion 22 of the signal terminals 20, and install the two second waterproof rings 50 into the corresponding second mounting slots 411 of the power terminals 40. In the process, one end of each of the two second wires 110 is connected to the corresponding second wiring portion 42 of the power terminal 40; then, multiple signal terminals 20, two power terminals 40, and two nuts 90 are placed into a mold and injection molded to form the front shell 10; next, the third waterproof ring 70 is installed into the third mounting groove 121 of the plug 12 for fixing, and the fourth waterproof ring 80 is installed into the fourth mounting groove 111 of the main body 11 for fixing; finally, the rear cover 60 is installed into the groove 103 of the front shell 10, and the positioning block 120 is installed into the first through hole 131 and the second through hole 61 to connect and fix the front shell 10 and the rear cover 60.
[0059] In use, install the male connector onto the panel, ensuring the front side of the male connector body 11 fits tightly against the panel. Tighten the screws through the nuts 90 on the panel and front housing 10 to secure the panel and male connector. Tightening the screws and nuts 90 compresses the fourth waterproof ring 80, which effectively prevents water from entering through the gap between the panel and the male connector, providing excellent waterproofing. Insert the female connector into the male connector to achieve electrical conductivity.
[0060] The key design feature of this utility model is:
[0061] By providing a first mounting groove on the outer side of the first contact portion of the signal terminal, a first waterproof ring is placed in the first mounting groove, and the first contact portion and the first waterproof ring are located in a first slot. Similarly, by providing a second mounting groove on the outer side of the second contact portion of the power terminal, a second waterproof ring is placed in the second mounting groove, and the second contact portion and the second waterproof ring are located in a second slot. This structure of the male connector effectively enhances its waterproof performance, making it difficult for external water to enter the male connector through the gaps between the plug and the signal terminal, and between the plug and the power terminal. This provides good waterproofing, prevents damage to the male connector, improves safety during use, enhances product quality, extends product lifespan, brings convenience to users, and meets current needs.
[0062] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A male connector with good waterproof performance, characterized in that: The device includes a front housing, multiple signal terminals, multiple first waterproof rings, two power terminals, two second waterproof rings, and a rear cover. The front housing includes a main body and a plug extending forward from the main body for mating with a female connector. The plug has multiple first slots and two second slots. The multiple signal terminals are embedded in the front housing. Each signal terminal includes a first contact portion and a first wiring portion. The first contact portion is disposed in a first slot, and the outer side of the first contact portion has a first mounting groove. The first wiring portion extends outward from the front housing. The multiple first waterproof rings are respectively... The first waterproof rings are respectively located in the corresponding first mounting slots and the first waterproof rings are respectively located in the corresponding first slots; the two power terminals are embedded in the front shell, each power terminal includes a second contact portion and a second wiring portion, the second contact portion is located in the second slot, the outer side of the second contact portion is provided with a second mounting slot, and the second wiring portion extends outward from the front shell; the two second waterproof rings are respectively located in the corresponding second mounting slots and the two second waterproof rings are respectively located in the corresponding second slots; the rear cover is located on the rear side of the front shell and covers the multiple signal terminals and the two power terminals.
2. The waterproof male connector according to claim 1, characterized in that: The outer side of the plug is provided with a third mounting groove, and a third waterproof ring is further provided therein, which is fixed in the third mounting groove.
3. The waterproof male connector according to claim 1, characterized in that: The front side of the main body is provided with a fourth mounting groove, which is located around the plug. A fourth waterproof ring is further provided, which is disposed in the fourth mounting groove and fixed in place.
4. The waterproof male connector according to claim 3, characterized in that: The main body has positioning holes on its left and right sides, and two nuts for fixing with external screws are further provided. The two nuts are respectively set in the corresponding positioning holes.
5. The waterproof male connector according to claim 1, characterized in that: The first waterproof ring is a corrugated waterproof ring.
6. The waterproof male connector according to claim 1, characterized in that: The second waterproof ring is a corrugated waterproof ring.
7. The waterproof male connector according to claim 1, characterized in that: The rear side of the front shell is recessed inward with a groove that communicates with a plurality of first slots and two second slots. The rear cover is disposed in the groove and the rear cover and the front shell together form an installation cavity. A plurality of first wires and two second wires are further provided. One end of each of the plurality of first wires is connected to a corresponding first connector. One end of each of the plurality of first wires and the plurality of first connectors are disposed in the installation cavity. The other end of each of the plurality of first wires extends outward from the front shell and the rear cover. One end of each of the two second wires is connected to a corresponding second connector. One end of each of the two second wires and the two second connectors are disposed in the installation cavity. The other end of each of the two second wires extends outward from the front shell and the rear cover.
8. The waterproof male connector according to claim 7, characterized in that: The rear end of the main body is provided with a rearward extension portion, the outer side of which is provided with a first through hole, and the outer side of the rear cover is provided with a second through hole. The second through hole communicates with the mounting cavity and the first through hole. A positioning block is further provided, which is disposed in the first through hole and the second through hole to connect and fix the front shell and the rear cover.
9. The waterproof male connector according to claim 1, characterized in that: The signal terminal includes a first terminal sleeve and a first crown spring terminal. The front end of the first terminal sleeve is recessed inward and has a first fixing groove. The outer side of the first terminal sleeve is provided with the aforementioned first mounting groove. The rear end of the first terminal sleeve is bent and extends out to form the aforementioned first wiring portion. The first crown spring terminal is disposed in the first fixing groove and fixed in place.
10. The waterproof male connector according to claim 1, characterized in that: The power terminal includes a second terminal sleeve, a second crown spring terminal, and an OT terminal. The front end of the second terminal sleeve is recessed inward and has a second fixing groove. The outer side of the second terminal sleeve is provided with the aforementioned second mounting groove. The rear end of the second terminal sleeve is provided with a riveting part. The second crown spring terminal is disposed in the second fixing groove for fixation. One end of the OT terminal is provided with a riveting hole. The riveting part passes through the riveting hole and is riveted and flanged. The other end of the OT terminal is provided with the aforementioned second wiring part.