Waterproof connector water entry sensing automatic power-off structure
By introducing a conductive closed-loop sensing ring into the connector, water flow is sensed and power is automatically cut off, solving the short circuit problem caused by connector waterproofing failure. This provides a safe water ingress sensing and automatic power-off mechanism, ensuring the safety of the connector in high-voltage current and water ingress risk environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-18
- Publication Date
- 2026-04-14
AI Technical Summary
Existing connectors fail to provide waterproofing in high-voltage current or water-risk environments, potentially leading to short circuits and fires. They also lack effective water ingress sensing and automatic power-off mechanisms.
A waterproof connector structure was designed, including male and female connectors, each with a sensing ring having a conductive closed ring body. Water flow is sensed through the channel between the sensing rings, forming a path to automatically cut off power and avoid short circuits. The sensing rings are connected to a power source to realize water ingress warning and automatic power cut-off.
It achieves automatic power-off before water enters, providing a double-protection waterproof function to ensure the safety of the connector in high-voltage current and water ingress risk environments, avoiding short circuit and fire risks.
Smart Images

Figure CN116505319B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a waterproof connector with automatic power-off structure based on water ingress detection, and more particularly to a waterproof connector structure that can detect water ingress and automatically power off after the waterproofing measures fail. Background Technology
[0002] Connectors are now a common electronic component used to connect circuits. They can be used as connection points for different components in a circuit system, and can also be used as a tool for connecting power or signals in a circuit system. As a bridge between current and signals in modern electronic products, poor transmission quality or damage will definitely affect the entire electronic product.
[0003] However, if a connector short-circuits, it may damage the devices connected to both ends of the connector. One possible cause of a short circuit is water, especially when using high-voltage current or in extreme environments with a risk of water ingress. This can lead to the destruction of the entire device or even a fire. Therefore, waterproofing of connectors is extremely important. Although conventional connectors have basic waterproofing measures, there is still a possibility of failure. How to reliably prevent water ingress and short circuits is a breakthrough that manufacturers urgently need to make. Summary of the Invention
[0004] The main objective of this invention is to provide a waterproof connector with an automatic power-off structure that senses water ingress, so as to reliably prevent the connector from short-circuiting due to water ingress.
[0005] To achieve the above objectives, the waterproof connector water ingress sensing automatic power-off structure of the present invention includes a male connector and a female connector. The male connector has a male body with several power male terminals and several signal male terminals, and a male sensing ring, which is a conductive closed ring, is disposed within the male body. The female connector has a female body with several power female terminals and several signal female terminals, and a female sensing ring, which is also a conductive closed ring, is disposed on the female body. A water-stop groove is recessed in the female body, and a water-stop ring is accommodated in the water-stop groove. The male power terminal is connected to the female power terminal to transmit power, and the male signal terminal is connected to the female signal terminal to transmit signals. The male terminal body rests against the water-stop ring to prevent water from entering between the male terminal body and the female terminal body, thus completing the combination of the male and female connectors. A channel is formed between the male and female terminal bodies, slightly larger than the gap between the male and female sensing rings. A sensing section is formed within the gap between the male and female sensing rings in the channel. The male and female sensing rings are connected to a power source, and the waterproof connector automatically disconnects power upon water ingress detection. The sensing principle of this structure is based on the fact that the male and female sensing rings are connected to the power supply. Initially, because the male and female sensing rings are not connected, an open circuit is formed. When water flows between the male and female sensing rings and comes into contact with them, a path is formed between the male and female sensing rings and the power supply. This path allows the user to sense the water flowing between the male and female sensing rings. With this structure, if water accidentally seeps through the water-stop ring and enters the channel due to vibration, deformation of the water-stop ring, or poor sealing, the water will flow through the channel to the male power terminal, the male signal terminal, and the female power terminal. Before a short circuit occurs on the male or female terminal of the signal connector, water will first flow to the sensing section and contact the male and female sensing rings to form a path with the power supply. This allows the system to detect water leakage inside the male and female connectors, achieving the function of water ingress detection. The system also sends out a signal for warning and automatic power-off purposes. By automatically disconnecting the power to the male and female connectors before a short circuit occurs, the system is safe to use. Furthermore, since both the male and female sensing rings are conductive closed rings, the system prevents water from flowing into the sensing section without contacting the male and female sensing rings to form a path.
[0006] Furthermore, the male end body is provided with two male end fastening parts, and the female end body is provided with two female end fastening parts. The female end fastening parts are fastened to the male end fastening parts, which has the effect of ensuring that the male end connector and the female end connector are securely combined, so as to prevent the male end connector from detaching from the female end connector and enhance the waterproof effect of the water-stop ring.
[0007] The beneficial effects of the present invention are as follows: the waterproof connector of the present invention achieves the waterproof effect of the first part by using a water-stop ring when water enters, and then senses whether there is water leakage inside the connector by forming a passage through the contact of water flow with the male end sensing ring and the female end sensing ring, and achieves warning and automatic power-off through this passage, which has the effect of double insurance in terms of safety. Attached Figure Description
[0008] Figure 1 This is a three-dimensional assembly diagram of the present invention.
[0009] Figure 2 This is an exploded perspective view of the present invention.
[0010] Figure 3 This is an exploded view of the male connector of the present invention.
[0011] Figure 4 This is an exploded view of the female connector of the present invention.
[0012] Figure 5 This is a side sectional view of the present invention, showing the state before docking.
[0013] Figure 6 This is a side sectional view of the present invention, showing the assembly in a docked state.
[0014] Figure 7 This is a top sectional view of the present invention, showing the assembly in a docked state.
[0015] Figure 8 This is a schematic diagram of the leakage sensing principle of the present invention, with the sensing ring in an open circuit state.
[0016] Figure 9 This is a schematic diagram of the water leakage sensing principle of the present invention, in which the sensing ring and water are in a through-circuit state.
[0017] Figure 10 This is a side cross-sectional view of the present invention, showing that water leakage causes the sensing ring to be in a state of flow with water.
[0018] Figure 11 This is a top sectional view of the present invention, showing that water leakage causes the sensing ring to be in a state of flow with water.
[0019] In the picture:
[0020] Male connector -- 10; Male connector body -- 11;
[0021] Power male terminal – 12; Signal male terminal – 13;
[0022] Male sensing ring – 14; Male fastening part – 15;
[0023] Female connector -- 20; Female body -- 21;
[0024] Waterstop groove -- 211; Power bus terminal -- 22;
[0025] Signal female terminal -- 23; Female terminal sensing ring -- 24;
[0026] Water-stop ring – 25; Female end snap-fit part – 26;
[0027] Channel 30; Sensing Section 31;
[0028] Power supply -- 40;
[0029] Water -- 50. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.
[0031] According to the present invention, firstly please... Figures 1 to 5 As shown, it includes a male connector 10 and a female connector 20. The male connector 10 has a male body 11, which has a plurality of power male terminals 12 and a plurality of signal male terminals 13. The male body 11 also has a male sensing ring 14, which is a conductive closed ring. The female connector 20 has a female body 21, which has a plurality of power female terminals 22 and a plurality of signal female terminals 23. The female body 21 also has a female sensing ring 24, which is a conductive closed ring. The female body 21 has a recessed water-stop groove 211, which accommodates a water-stop ring 25.
[0032] Depend on Figures 5 to 7As shown, in the implementation of the present invention, the male power terminal 12 is connected to the female power terminal 22 to transmit power, the male signal terminal 13 is connected to the female signal terminal 23 to transmit signals, and the male terminal body 11 abuts against the water-stop ring 25 to prevent water from entering between the male terminal body 11 and the female terminal body 21, thus completing the combination of the male terminal connector 10 and the female terminal connector 20. A channel 30 is formed between the male terminal body 11 and the female terminal body 21 with a gap slightly larger than that between the male terminal sensing ring 14 and the female terminal sensing ring 24. A sensing section 31 is formed in the gap between the male terminal sensing ring 14 and the female terminal sensing ring 24 within the channel 30.
[0033] Depend on Figure 8 As shown, the male sensing ring 14 and the female sensing ring 24 are connected to a power supply 40. The sensing principle of the waterproof connector's automatic power-off structure for water ingress detection is based on the fact that the male sensing ring 14 and the female sensing ring 24 are connected to the power supply 40. Initially, because the male sensing ring 14 and the female sensing ring 24 are not connected, an open circuit is formed, and then... Figure 9 As shown, when water 50 flows between the male sensing ring 14 and the female sensing ring 24 and comes into contact with them, the male sensing ring 14, the female sensing ring 24, and the power supply 40 form a path, allowing the user to sense that water 50 is flowing between the male sensing ring 14 and the female sensing ring 24.
[0034] Depend on Figures 10 to 11 As shown, with the above structure, when water 50 accidentally seeps through the water-stop ring 25 and enters the channel 30 due to vibration, deformation of the water-stop ring 25, or poor sealing effect, before the water 50 flows through the channel 30 to the power male terminal 12, the signal male terminal 13, the power female terminal 22, or the signal female terminal 23 and causes a short circuit, it will first flow to the sensing section 31 and contact the male sensing ring 14 and the female sensing ring 24 to form a path with the power supply 40, thus sensing the male connector 1. The male connector 10 and the female connector 20 are leaking water, which achieves the function of water ingress detection. The signal is sent through this channel for warning and automatic power-off purposes. The power is automatically cut off to the male connector 10 and the female connector 20 before a short circuit occurs, which has the effect of safe use. Since the male sensing ring 14 and the female sensing ring 24 are both conductive closed rings, the situation where water 50 flows into the sensing section 31 without contacting the male sensing ring 14 and the female sensing ring 24 to form a passage is avoided.
[0035] This invention provides a waterproof connector with an automatic power-off structure for water ingress sensing. The male end body 11 is provided with two male end fastening parts 15, and the female end body 21 is provided with two female end fastening parts 26. The female end fastening parts 26 are fastened to the male end fastening parts 15, which has the effect of ensuring that the male end connector 10 and the female end connector 20 are securely combined, thereby preventing the male end connector 10 from detaching from the female end connector 20 and enhancing the waterproof effect of the water-stop ring 25.
[0036] The present invention provides a waterproof connector with water ingress sensing and automatic power-off structure, wherein the male end sensing ring 14 and the female end sensing ring 24 form a path with the power supply 40, and a relay is connected in the path to interrupt the power and signal transmission between the male end connector 10 and the female end connector 20.
[0037] The present invention provides a waterproof connector with water ingress sensing and automatic power-off structure, wherein the male end sensing ring 14 and the female end sensing ring 24 form a path with the power supply 40, and a microcontroller is connected in the path. The microcontroller receives the water ingress sensing signal and issues a warning and automatically cuts off the power to the male end connector 10 and the female end connector 20.
[0038] The above-mentioned waterproof connector water ingress sensing automatic power-off structure has the following advantages: (i) The male end body 11 abuts against the water-stop ring 25, so that the water-stop ring 25 prevents water from entering between the male end body 11 and the female end body 21, thus having a waterproof effect; (ii) If water 50 accidentally seeps through the water-stop ring 25 and enters the channel 30, the water 50 will first flow to the sensing section 31 and contact the male end sensing ring 14 and the female end sensing ring 24 to form a path with the power supply 40, thereby detecting that there is water leakage inside the male end connector 10 and the female end connector 20; (iii) Through the water-stop ring 25, the water ingress sensing ring 25 can prevent water from entering between the male end body 11 and the female end body 21, thus having a waterproof effect; The water ring 25 prevents water from entering or the male end sensing ring 14 and the female end sensing ring 24 detect whether there is a water leakage, providing double protection in terms of waterproof function; (iv) the male end sensing ring 14 and the female end sensing ring 24 form a path with the power supply 40, so as to send out signals for warning and automatic power-off purposes, and automatically disconnect the power to the male end connector 10 and the female end connector 20 before a short circuit occurs, making it safer to use; (v) because it is waterproof, can detect water ingress, and can automatically disconnect power, it is more suitable for use in high voltage current or in extreme environments with the risk of water ingress.
[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.
Claims
1. A waterproof connector with automatic power-off structure for water ingress sensing, comprising a male connector and a female connector, characterized in that: The male connector has a male body, which is provided with a plurality of power male terminals and a plurality of signal male terminals, and a male sensing ring is provided within the male body, which is a conductive closed ring. The female connector has a female body, which is provided with a plurality of power female terminals and a plurality of signal female terminals. The female body is also provided with a female sensing ring, which is a conductive closed ring. The female body is recessed with a water-stop groove, which accommodates a water-stop ring. The male power terminal is connected to the female power terminal to transmit power, and the male signal terminal is connected to the female signal terminal to transmit signals. The male terminal body abuts against the water-stop ring to prevent water from entering between the male terminal body and the female terminal body, thus completing the combination of the male terminal connector and the female terminal connector. A channel is formed between the male terminal body and the female terminal body by leaving a gap slightly larger than the male terminal sensing ring and the female terminal sensing ring. A sensing segment is formed in the gap between the male terminal sensing ring and the female terminal sensing ring within the channel. The male sensing ring and the female sensing ring are connected to a power source. The sensing principle of the waterproof connector's water ingress sensing automatic power-off structure is that the male sensing ring and the female sensing ring are connected to the power source. Initially, because the male sensing ring and the female sensing ring are not connected, an open circuit is formed. When water flows to the male sensing ring and the female sensing ring and comes into contact with them, a path is formed between the male sensing ring, the female sensing ring, and the power source. This path allows the user to sense that water is flowing between the male sensing ring and the female sensing ring.
2. The waterproof connector water ingress sensing automatic power-off structure as described in claim 1, characterized in that, The male connector body has two male fastening parts, and the female connector body has two female fastening parts. The female fastening parts are fastened to the male fastening parts, which has the effect of ensuring that the male connector and the female connector are securely combined, so as to prevent the male connector from detaching from the female connector.
3. The waterproof connector water ingress sensing automatic power-off structure as described in claim 1 or 2, characterized in that, The male sensing ring and the female sensing ring form a path with the power supply, and a relay is connected in the path to interrupt the power and signal transmission between the male connector and the female connector.
4. The waterproof connector water ingress sensing automatic power-off structure as described in claim 1 or 2, characterized in that, The male sensing ring and the female sensing ring form a path with the power supply. A microcontroller is connected in the path to receive the water ingress signal and issue a warning and automatically power off the male connector and the female connector.
Citation Information
Patent Citations
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