Connector capable of protecting ground wire electrode

By setting an annular groove structure on the lower connector of the electrical connector to hide the ground wire conductive spring, and fixing it with screws and thermoplastic protrusions, the problem of exposed ground wires being easily damaged and contaminated is solved, thereby improving safety and reliability.

CN224264406UActive Publication Date: 2026-05-19FOSHAN HUILAIDE ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN HUILAIDE ELECTRIC APPLIANCE CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing electrical connectors, the ground electrode is exposed and easily touched, damaged by external forces, and prone to the adhesion of scale, foreign matter, or oil, resulting in low safety.

Method used

A concentric protrusion is designed on the lower connector to form an annular groove, and a ground wire conductive spring is inserted into the annular groove. Combining the high-voltage and low-voltage conductive spring structures, it is fixed by screws and thermoplastic protrusions to prevent the ground wire from being exposed, and the contact structure is hidden in the annular groove.

Benefits of technology

It effectively prevents the grounding contact structure from being damaged by external forces, avoids the adhesion of scale, foreign objects or oil stains, improves safety, and ensures the reliability of grounding contact and user safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a connector capable of protecting a ground wire electrode, which comprises a lower connecting seat, a plurality of concentric convex rings with different diameters extend on the lower connecting seat, an annular groove is enclosed between two adjacent convex rings, and the lower connecting seat is connected with a ground wire conductive reed, two groups of strong current conductive reeds and two groups of weak current conductive reeds. The ground wire conductive reed comprises a ground wire fixing part connected to the bottom surface of the lower connecting seat and a ground wire contact structure connected to the ground wire fixing part, and the ground wire contact structure is inserted into any annular groove and is attached to the inner groove wall or the outer groove wall of the annular groove; the ground wire conductive reed in the connector is not exposed on the lower connecting seat, so that the ground wire contact structure is prevented from being damaged by external force, scale, foreign matters or greasy dirt is not easy to stick, and the ground wire contact structure is hidden in the annular groove so as to be prevented from being touched by a user and improve the safety under the condition that the ground wire is electrified due to the fact that part of products borrow the ground wire as weak current.
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Description

Technical Field

[0001] This utility model relates to the field of connectors, specifically a connector that can protect the ground electrode. Background Technology

[0002] The current electrical connector structure is shown in Chinese patent document, application number: 202222217548.4, which describes an improved electrical connector for data line connection, as illustrated in the attached drawings. Figure 4 The specification discloses that an exposed electrode is provided on the outer wall of the connector base. Paragraph 0032 of the specification states that this electrode is mainly used to connect to the ground wire. In some non-standard products, the ground wire is used as a low-voltage circuit, which causes the ground wire electrode to be electrified. Exposing the ground wire electrode makes it easy for users to touch it, which is unsafe. Furthermore, the ground wire is exposed and is easily damaged by external forces. In addition, during long-term use, the ground wire is prone to accumulating scale, foreign matter, oil, etc. Therefore, the connector needs to be further improved for the ground wire electrode. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable connector that can protect the ground electrode.

[0004] A connector for protecting the ground electrode includes a lower connector base with several concentric but different diameter convex rings extending from the lower connector base. An annular groove is formed between adjacent convex rings. The lower connector base is connected to a ground conductive spring, two sets of high-voltage conductive springs, and two sets of low-voltage conductive springs. The ground conductive spring includes a ground fixing part connected to the bottom surface of the lower connector base and a ground contact structure connected to the ground fixing part. The ground contact structure is inserted into any one of the annular grooves and abuts against the inner or outer groove wall of the annular groove.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific solution, a water inlet pipe is assembled and connected to the center of the lower connecting seat. The water inlet pipe can form a first annular groove between a convex ring and an adjacent convex ring. The ground wire contact structure is inserted into the first annular groove and abuts against the outer groove wall inside the first annular groove.

[0007] As a further embodiment, the number of convex rings is four, with a second annular groove, a third annular groove, and a fourth annular groove arranged sequentially between adjacent convex rings.

[0008] As a further embodiment, any set of high-voltage conductive springs includes a high-voltage fixing part connected to the bottom surface of the lower connecting seat and a high-voltage contact structure connected to the high-voltage fixing part, wherein one high-voltage contact structure is inserted into the second annular groove and abuts against the outer groove wall of the second annular groove, and the other high-voltage contact structure is inserted into the third annular groove and abuts against the inner groove wall of the third annular groove.

[0009] As a further embodiment, any set of low-voltage conductive springs includes a low-voltage fixing part connected to the bottom surface of the lower connecting seat and a low-voltage contact structure connected to the low-voltage fixing part. Both low-voltage contact structures are inserted into the third annular groove, with one low-voltage contact structure abutting against the outer groove wall of the third annular groove and the other low-voltage contact structure abutting against the inner groove wall of the third annular groove.

[0010] As a further embodiment, any low-voltage contact structure includes two low-voltage springs arranged side by side. The two low-voltage springs are spaced apart from each other and extend longitudinally. The tops of the two low-voltage springs are integrally stamped with side-impact contacts facing the third annular groove.

[0011] As a further solution, the ground wire fixing part, the high voltage fixing part, and the low voltage fixing part are all provided with connection through holes. The bottom surface of the lower connecting seat extends with mounting bosses corresponding to the number of conductive springs. The mounting bosses are provided with threaded blind holes corresponding to the connection through holes. By passing screws through the connection through holes and the threaded blind holes, each conductive spring is fastened to the lower connecting seat.

[0012] As a further embodiment, the ground wire fixing part has a connecting through hole on the side of its connecting through hole, and a hot-melt protrusion extends from the mounting boss of the ground wire conductive spring and is inserted into the connecting through hole. After the hot-melt protrusion is melted and pressed at high temperature, the ground wire conductive spring is permanently fixed on the mounting boss.

[0013] As a further solution, an avoidance groove is provided on the inner side wall of the convex ring corresponding to the ground contact structure. The left and right sides of the avoidance groove face the limiting part, and the left and right sides of the ground contact structure are bent backward to limit the limiting spring piece located behind the limiting part.

[0014] As a further embodiment, each assembly boss is provided with a positioning groove that cooperates with the ground wire fixing part, or the high-voltage fixing part, or the low-voltage fixing part. A positioning block extends from the left or right wall of the positioning groove, and a positioning slot that cooperates with the positioning block is provided on the high-voltage fixing part or the low-voltage fixing part.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model discloses a connector that can protect the ground electrode. The ground conductive spring in this connector is not exposed on the lower connector, which prevents the ground contact structure from being damaged by external forces. It is also less likely to stick to scale, foreign objects or oil stains. Even if some products use the ground wire as a weak current and the ground wire becomes live, the ground contact structure is hidden in the annular groove to prevent users from touching it, thus improving safety. Attached Figure Description

[0017] Figure 1 This is a top view of the lower connecting seat structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the ground wire conductive spring, the high-voltage conductive spring, and the low-voltage conductive spring in this utility model.

[0019] Figure 3 This is an exploded structural diagram of the conductive springs and the lower connecting seat of this utility model.

[0020] Figure 4 This is a partial structural diagram of the lower connecting seat in this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1 to 4 As shown, a connector that can protect the ground electrode includes a lower connector 1. Several concentric but different diameter convex rings 2 extend from the lower connector 1. An annular groove is formed between two adjacent convex rings 2. A ground conductive spring 3, two sets of high-voltage conductive springs 4 and two sets of low-voltage conductive springs 5 ​​are connected to the lower connector 1. The ground conductive spring 3 includes a ground fixing part 31 connected to the bottom surface of the lower connector 1 and a ground contact structure 32 connected to the ground fixing part 31. The ground contact structure 32 is inserted into any annular groove and abuts against the inner or outer groove wall of the annular groove.

[0023] In this connector, the ground conductive spring 3 is not exposed on the lower connector 1, preventing the ground contact structure 32 from being damaged by external forces. It also prevents the accumulation of scale, foreign matter, or oil. Even if some products use the ground wire for low-voltage communication, causing the ground wire to become energized, the ground contact structure 32, hidden within the annular groove, prevents user contact and improves safety.

[0024] The ground contact structure 32 includes a ground spring 321, and the top of the ground spring 321 is connected to a side contact 6.

[0025] The lower connecting seat 1 is equipped with a water inlet pipe 7 at its center. The water inlet pipe 7 can form a first annular groove 101 between a convex ring 2 and an adjacent convex ring 2. The ground contact structure 32 is inserted into the first annular groove 101 and abuts against the outer groove wall of the first annular groove 101. Since the water inlet pipe 7 may leak, the safest ground contact structure 32 is set in an annular groove close to the water inlet pipe 7 to maximize safety.

[0026] The number of the convex rings 2 is four, and a second annular groove 102, a third annular groove 103 and a fourth annular groove 104 are arranged sequentially between two adjacent convex rings 2.

[0027] Each set of high-voltage conductive springs 4 includes a high-voltage fixing part 41 connected to the bottom surface of the lower connecting seat 1 and a high-voltage contact structure 42 connected to the high-voltage fixing part 41. One high-voltage contact structure 42 is inserted into the second annular groove 102 and abuts against the outer groove wall of the second annular groove 102, and the other high-voltage contact structure 42 is inserted into the third annular groove 103 and abuts against the inner groove wall of the third annular groove 103.

[0028] The high-voltage contact structure 42 includes a high-voltage spring 421, and the top of the high-voltage spring 421 is connected to a side-touch contact 6.

[0029] Each set of low-voltage conductive springs 5 ​​includes a low-voltage fixing part 51 connected to the bottom surface of the lower connecting seat 1 and a low-voltage contact structure 52 connected to the low-voltage fixing part 51. Both low-voltage contact structures 52 are inserted into the third annular groove 103. One low-voltage contact structure 52 is attached to the outer groove wall of the third annular groove 103, and the other low-voltage contact structure 52 is attached to the inner groove wall of the third annular groove 103.

[0030] Any low-voltage contact structure 52 includes two low-voltage springs 521 arranged side by side. The two low-voltage springs 521 are spaced apart and extended longitudinally. The top of each of the two low-voltage springs 521 is integrally stamped with a side-touching contact 6 facing the third annular groove 103.

[0031] The low-voltage contact structure 52 adds one or more contacts to the existing contact to make contact with the conductor copper ring of the lower connector 1. This can prevent poor contact caused by oxidation or impurities and ensure that the low-voltage circuit for data feedback remains connected.

[0032] The ground wire fixing part 31, the high voltage fixing part 41, and the low voltage fixing part 51 are all provided with connection through holes 8. The bottom surface of the lower connecting seat 1 extends with mounting bosses 9 corresponding to the number of conductive springs. The mounting bosses 9 are provided with threaded blind holes 901 corresponding to the connection through holes 8. The conductive springs are fastened to the lower connecting seat 1 by passing screws 10 through the connection through holes 8 and the threaded blind holes 901. The structure is simple and easy to install.

[0033] The ground wire fixing part 31 has a connecting through hole 311 on the side of its connecting through hole 8. A hot melt protrusion 902 extends from the mounting boss 9 of the ground wire conductive spring 3 and is inserted into the connecting through hole 311. After the hot melt protrusion 902 is melted and pressed at high temperature, the ground wire conductive spring 3 is permanently fixed on the mounting boss 9. The ground wire conductive spring 3 is fixed by the melting point, making the connection of the ground wire conductive spring 3 more secure.

[0034] The inner wall of the convex ring 2 is provided with a clearance groove 201 corresponding to the ground contact structure 32. The left and right sides of the clearance groove 201 face the limiting part 202. The left and right sides of the ground contact structure 32 are bent backward to limit the limiting spring piece 322 located behind the limiting part 202. The limiting part 202 can prevent the ground contact structure 32 from popping out of the first annular groove 101 and causing the ground contact structure 32 to be crushed.

[0035] Each assembly boss 9 has a positioning groove 903 that cooperates with the ground wire fixing part 31, or the high-voltage fixing part 41, or the low-voltage fixing part 51. A positioning block 904 extends from the left or right groove wall of the positioning groove 903. The high-voltage fixing part 41 or the low-voltage fixing part 51 has a positioning slot 11 that cooperates with the positioning block 904.

[0036] The two positioning slots 903 used for the high-voltage fixing part 41 have a positioning block 904 extending from the left wall of one positioning slot 903 and a positioning block 904 extending from the right wall of the other positioning slot 903. Therefore, the positioning slots 11 on the two high-voltage fixing parts 41 are opened in different directions, which ultimately prevents the two sets of high-voltage conductive springs 4 with different structures (mainly reflected in the side contact 6 being connected on the inner or outer side) from being installed incorrectly, thus playing a foolproof role. The positioning block 904 and positioning slot 11 on the low-voltage fixing part 51 are similar to the above.

[0037] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A connector for protecting a ground electrode, comprising a lower connector base, wherein a plurality of concentric but different diameter protrusions extend from the lower connector base, an annular groove is formed between adjacent protrusions, and a ground conductive spring, two sets of high-voltage conductive springs and two sets of low-voltage conductive springs are connected to the lower connector base, characterized in that: The ground wire conductive spring includes a ground wire fixing part connected to the bottom surface of the lower connecting seat and a ground wire contact structure connected to the ground wire fixing part. The ground wire contact structure is inserted into any annular groove and abuts against the inner or outer groove wall of the annular groove.

2. The connector for protecting the ground electrode according to claim 1, characterized in that: The lower connecting seat is equipped with a water inlet pipe at its center. The water inlet pipe can form a first annular groove between a convex ring and an adjacent convex ring. The ground wire contact structure is inserted into the first annular groove and abuts against the outer groove wall inside the first annular groove.

3. A connector for protecting the ground electrode according to claim 2, characterized in that: The number of convex rings is four, and a second annular groove, a third annular groove, and a fourth annular groove are arranged sequentially between two adjacent convex rings.

4. A connector for protecting the ground electrode according to claim 3, characterized in that: Any set of high-voltage conductive springs includes a high-voltage fixing part connected to the bottom surface of the lower connecting seat and a high-voltage contact structure connected to the high-voltage fixing part. One high-voltage contact structure is inserted into the second annular groove and abuts against the outer groove wall of the second annular groove, and the other high-voltage contact structure is inserted into the third annular groove and abuts against the inner groove wall of the third annular groove.

5. A connector for protecting the ground electrode according to claim 4, characterized in that: Each set of low-voltage conductive springs includes a low-voltage fixing part connected to the bottom surface of the lower connecting seat and a low-voltage contact structure connected to the low-voltage fixing part. Both low-voltage contact structures are inserted into the third annular groove, with one low-voltage contact structure abutting against the outer groove wall of the third annular groove and the other low-voltage contact structure abutting against the inner groove wall of the third annular groove.

6. A connector for protecting the ground electrode according to claim 5, characterized in that: Any low-voltage contact structure includes two low-voltage springs arranged side by side. The two low-voltage springs are spaced apart and extended longitudinally. The tops of the two low-voltage springs are integrally stamped with side-impact contacts facing the third annular groove.

7. A connector for protecting the ground electrode according to claim 5, characterized in that: The grounding fixing part, the high-voltage fixing part, and the low-voltage fixing part are all provided with connection through holes. The bottom surface of the lower connecting seat extends with mounting bosses corresponding to the number of conductive springs. The mounting bosses are provided with threaded blind holes corresponding to the connection through holes. By passing screws through the connection through holes and the threaded blind holes, each conductive spring is fastened to the lower connecting seat.

8. A connector for protecting the ground electrode according to claim 7, characterized in that: The ground wire fixing part has a connecting through hole on the side of its connecting through hole, and a hot melt protrusion extends from the mounting boss of the ground wire conductive spring and is inserted into the connecting through hole. After the hot melt protrusion is melted and pressed at high temperature, the ground wire conductive spring is permanently fixed on the mounting boss.

9. A connector for protecting the ground electrode according to claim 2, characterized in that: The inner wall of the convex ring is provided with a clearance groove corresponding to the ground contact structure. The left and right sides of the clearance groove face the limiting part, and the left and right sides of the ground contact structure are bent backward to limit the limiting spring piece located behind the limiting part.

10. A connector for protecting the ground electrode according to claim 7, characterized in that: Each assembly boss has a positioning groove that mates with the ground wire fixing part, or the high-voltage fixing part, or the low-voltage fixing part. A positioning block extends from the left or right wall of the positioning groove, and a positioning slot that mates with the positioning block is provided on the high-voltage fixing part or the low-voltage fixing part.