An open-prevention socket structure
By employing sealant and PCB circuit board design in the socket structure, combined with microcontroller-controlled relays, the electrical control function of the anti-open-circuit socket is realized, solving the problem of sudden circuit disconnection when the connector is disconnected, and ensuring that the device's circuit remains connected and sealed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI YITONG ELECTRONICS
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-07
AI Technical Summary
Existing connectors are prone to causing sudden circuit disconnection when disconnected, which may damage the equipment and cannot meet the circuit continuity requirements of some devices.
Design an open-circuit-proof socket structure, using sealant for waterproof and dustproof sealing, and using electronic components such as PCB circuit board and microcontroller to realize the electrical control of the contacts to prevent open circuit, and using relays to control the short-circuiting and disconnection switching of the contacts.
It realizes the function of shorting and disconnecting the circuit, prevents the circuit from being suddenly disconnected, protects the equipment, is suitable for special functions that require the circuit to remain connected, and has good sealing and reliability.
Smart Images

Figure CN224472792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of socket technology, specifically to a socket structure that prevents open circuits. Background Technology
[0002] Connectors generally consist of a socket and a plug. When the socket and plug are disconnected, the connection circuit is in an open state. However, some customer needs and the implementation of some special functions of instruments and equipment require the circuit to remain connected, or switching some equipment to an open circuit may damage the equipment itself. Therefore, connectors with open circuit protection are needed to prevent the circuit from being suddenly disconnected.
[0003] Therefore, designing an electronically controlled structure that prevents open circuits and allows for switching between short-circuiting and disconnection 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 socket structure that can realize the functions of electrical control to prevent open circuit, circuit short circuit, and disconnection switching.
[0005] The technical solution adopted by this utility model device is as follows: an anti-open circuit socket structure, which includes a protrusion. The protrusion is disposed on the inner side of the end face of the housing. The end of the protrusion is sealed to the housing by a sealing ring. A round nut is threaded to the outer side of one end of the protrusion and locked to the side wall of the housing by the round nut. A contact insulator is disposed on the inner side of the protrusion. A contact cover plate is disposed on the side of the contact insulator. A retaining ring is disposed on the side of the contact cover plate and the inner side of the protrusion. A contact is inserted between the contact insulator and the contact cover plate. A sealant is disposed between the contact insulator and the contact cover plate and on the outer side of the contact. A PCB circuit board is electrically connected to the end of the contact. A cable is electrically connected to the PCB circuit board. The protrusion is bolted to a housing. A sealant is disposed on the inner side of the housing and the outer side of the PCB circuit board. A sealant is disposed between the inner side of the housing and the housing and on the outer side of the protrusion.
[0006] Furthermore, the PCB circuit board is connected to the contact via contact solder joints, and the PCB circuit board is electrically connected to relays and electronic components.
[0007] Furthermore, the protrusion includes a threaded protrusion.
[0008] Furthermore, the threaded protrusion includes a first flange, on which are evenly distributed first outer shell fixing threaded holes, and a first cylinder is connected to the end of the first flange. The first cylinder has a full thread on its circumferential surface, and a horizontally arranged first protrusion box fixing platform is provided at the upper end of the first cylinder.
[0009] Furthermore, the protrusion includes a bayonet-type protrusion.
[0010] Furthermore, the bayonet-type protrusion includes a second flange, on which are evenly distributed second outer shell fixing threaded holes are provided. A second cylinder is connected to the end of the second flange. A semi-thread is provided on the circumferential surface of the second cylinder. A horizontally arranged second protrusion box fixing platform is provided at the upper end of the second cylinder. Rivets are evenly distributed on the circumferential surface of the end of the second cylinder.
[0011] Furthermore, the contacts are evenly distributed on the PCB circuit board.
[0012] The beneficial effects of this utility model device are:
[0013] 1. This utility model uses sealant for waterproofing and dustproofing, and uses a PCB circuit board to electrically connect each contact. It also uses electronic components such as a microcontroller for coordinated control, so as to realize the short circuit prevention and open circuit protection between the contacts from the circuit perspective, and realize the functions of electrical control to prevent open circuit and circuit short circuit and disconnection switching. Attached Figure Description
[0014] Figure 1 This is a structural view of Embodiment 1 of the present utility model.
[0015] Figure 2 This is a front view of Embodiment 1 of this utility model.
[0016] Figure 3 This is a side view of an embodiment of the present utility model.
[0017] Figure 4 This is a rear view of a threaded protrusion according to Embodiment 1 of this utility model.
[0018] Figure 5 This is a top view of a threaded protrusion according to Embodiment 1 of this utility model.
[0019] Figure 6 This is a side view of a threaded protrusion according to Embodiment 1 of this utility model.
[0020] Figure 7 This is a front view of the threaded protrusion in Embodiment 1 of this utility model.
[0021] Figure 8 This is a structural view of Embodiment 2 of this utility model.
[0022] Figure 9 This is the front view of Embodiment 2 of this utility model.
[0023] Figure 10 This is a side view of Embodiment 2 of this utility model.
[0024] Figure 11 This is a rear view of the bayonet-type protrusion in Embodiment 2 of this utility model.
[0025] Figure 12 This is a top view of the bayonet-type protrusion in Embodiment 2 of this utility model.
[0026] Figure 13 This is a side view of the bayonet-type protrusion in Embodiment 2 of this utility model.
[0027] Figure 14 This is the front view of the bayonet-type protrusion in Embodiment 2 of this utility model.
[0028] Figure 15 This is a structural view of the PCB circuit board of this utility model.
[0029] Explanation of reference numerals in the attached drawings: 01-PCB circuit board, 011-contact solder joint, 012-fixing screw, 013-electronic component, 014-relay, 02-sealant, 03-housing, 04-sealing ring, 05-round nut, 06-contact cover plate, 07-contact, 08-contact insulator, 09A-threaded protrusion, 09A1-first housing fixing threaded hole, 09A2-first protrusion housing fixing platform, 09A3-full thread, 09B-bayonet protrusion, 09B1-second housing fixing threaded hole, 09B2-second protrusion housing fixing platform, 09B3-half thread, 10-retaining ring, 11-housing, 12-cable, 13-rivet. Detailed Implementation
[0030] 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.
[0031] Example 1: See Figures 1 to 7 , Figure 15This utility model includes a structural view, front view, side view, rear view of the threaded protrusion 09A, top view of the threaded protrusion 09A, side view of the threaded protrusion 09A, front view of the threaded protrusion 09A, and a PCB circuit board structural view. The protrusion is disposed inside the end face of the housing 11. The end of the protrusion is sealed to the housing 11 by a sealing ring 04. A round nut 05 is threaded to the outer side of one end of the protrusion and locked to the side wall of the housing 11 by the round nut 05. A contact insulator 08 is disposed inside the protrusion. A contact cover plate 06 is disposed on the side of the contact insulator 08. A retaining ring 10 is disposed on the side of the contact cover plate 06 and inside the protrusion. The retaining ring 10 serves to limit and fix the insulator cover plate. A contact 07 is inserted between a contact insulator 08 and a cover plate 06. A sealant 02 is applied between the contact insulator 08 and the cover plate 06, and on the outside of the contact 07. A PCB circuit board 01 is electrically connected to the end of the contact 07. A cable 12 is electrically connected to the PCB circuit board 01. A housing 03 is bolted to the protrusion. A sealant 02 is applied to the inside of the housing 03 and on the outside of the PCB circuit board 01. Sealant 02 is also applied between the inside of the housing 03 and the enclosure 11, and on the outside of the protrusion. Some spaces inside the housing 03 are sealed with sealant 02, effectively preventing oxidation and water ingress of the PCB circuit board 01 and its electronic components, and further waterproofing the entire socket.
[0032] The PCB circuit board 01 is soldered to the contact 07 via the contact solder joint 011. The PCB circuit board 01 is electrically connected to the relay 014. The contact 07 is evenly distributed on the PCB circuit board 01. The PCB circuit board 01 is electrically connected to the electronic component 013.
[0033] Electronic component 013 includes a microcontroller, which is electrically connected to PCB circuit board 01. The microcontroller controls relay 014 to control the on / off of a specified line, thereby controlling the short circuit between contacts 07. By short-circuiting the contacts 07, a circuit is formed, thus achieving the effect of preventing open circuit.
[0034] When the plug and socket are separated, the socket uses a circuit control system composed of relays 014 and electronic components 013 in the PCB circuit board 01 to achieve short-circuit state of contact pieces 07 with different core number combinations such as 1-6, 7-12, and 7-16, i.e., open-circuit protection state, so that the instrument and equipment can perform some special functions.
[0035] Once the plug and socket are connected, the control system disconnects the short circuit between the pins, enabling normal operation. Both ends of the pins in the socket are needle-shaped. One end of the pin mates with the corresponding plug, while the other end is a pointed needle that can be inserted into the corresponding PCB circuit board. No wires are needed for connection, making the connection more reliable.
[0036] The protrusion includes a threaded protrusion 09A, which includes a first flange. The first flange has evenly distributed first housing fixing threaded holes 09A1. The end of the first flange is connected to a first cylinder. The circumferential surface of the first cylinder is provided with a full thread 09A3. The upper end of the first cylinder is provided with a horizontally arranged first protrusion box fixing platform 09A2, which is suitable for plugs connected by threaded connection.
[0037] Example 2: See Figures 8 to 14 These are structural views, front view, side view, rear view, top view, side view, and front view of the bayonet-type protrusion 09B according to Embodiment 2 of this utility model. Based on the structure of the above embodiment, the protrusion includes a bayonet-type protrusion 09B, which includes a second flange. The second flange has evenly distributed second outer shell fixing threaded holes 09B1. A second cylinder is connected to the end of the second flange. A semi-threaded hole 09B3 is provided on the circumferential surface of the second cylinder. A horizontally arranged second protrusion box fixing platform 09B2 is provided at the upper end of the second cylinder. Rivets 13 are evenly distributed on the circumferential surface of the end of the second cylinder. Unlike the above embodiment, this is suitable for the connection of bayonet-type plugs, but for different plug connection methods.
[0038] This utility model uses sealant 02 for waterproof and dustproof sealing, and uses PCB circuit board 01 to electrically connect each contact 07. It also uses electronic components such as microcontroller for coordinated control, so as to realize the short circuit prevention and open circuit protection between the contact 07 from the circuit perspective, and realize the functions of electrical control to prevent open circuit, and circuit short circuit and disconnection switching.
Claims
1. A structure for preventing open circuits in a socket, characterized in that: The device includes a protrusion disposed on the inner side of the end face of the housing (11). The end of the protrusion is sealed to the housing (11) by a sealing ring (04). A round nut (05) is threaded to the outer side of one end of the protrusion and is locked to the side wall of the housing (11) by the round nut (05). A contact insulator (08) is disposed on the inner side of the protrusion. A contact cover plate (06) (07) is disposed on the side of the contact insulator (08). A retaining ring (10) is disposed on the side of the contact cover plate (07) (06) and the inner side of the protrusion. The contact insulator (08) and the contact cover plate (07) are... A contact (07) is inserted between (06). A sealant (02) is provided between the contact insulator (08) and the contact cover (06) and on the outside of the contact (07). The end of the contact (07) is electrically connected to a PCB circuit board (01). A cable (12) is electrically connected to the PCB circuit board (01). The protrusion is connected to a housing (03) by bolts. A sealant (02) is provided on the inside of the housing (03) and on the outside of the PCB circuit board (01). A sealant (02) is provided between the inside of the housing (03) and the box (11) and on the outside of the protrusion.
2. The anti-open-circuit socket structure according to claim 1, characterized in that: The PCB circuit board (01) is soldered to the contact (07) through the contact solder joint (011), and the PCB circuit board (01) is electrically connected to the relay (014) and the PCB circuit board (01) is electrically connected to the electronic component (013).
3. The anti-open-circuit socket structure according to claim 1, characterized in that: The protrusion includes a threaded protrusion (09A).
4. The anti-open-circuit socket structure according to claim 3, characterized in that: The threaded protrusion (09A) includes a first flange, on which are evenly distributed first housing fixing threaded holes (09A1), and a first cylinder is connected to the end of the first flange. The first cylinder has a full thread (09A3) on its circumferential surface, and a horizontally arranged first protrusion box fixing platform (09A2) is provided at the upper end of the first cylinder.
5. The anti-open-circuit socket structure according to claim 1, characterized in that: The protrusion includes a bayonet-type protrusion (09B).
6. The anti-open-circuit socket structure according to claim 5, characterized in that: The bayonet-type protrusion (09B) includes a second flange, on which are evenly distributed second outer shell fixing threaded holes (09B1). The end of the second flange is connected to a second cylinder, and a half thread (09B3) is provided on the circumferential surface of the second cylinder. A horizontally arranged second protrusion box fixing platform (09B2) is provided at the upper end of the second cylinder, and evenly distributed rivets (13) are provided on the circumferential surface of the end of the second cylinder.
7. The anti-open-circuit socket structure according to claim 1, characterized in that: The contacts (07) are evenly distributed on the PCB circuit board (01).