Electric connector with long service life

Abstract

The utility model relates to an electric connector with a long service life, which comprises an upper electric connector and a lower electric connector, an insertion cavity is arranged in the upper electric connector, a plurality of metal conducting rings are arranged in the insertion cavity, the top surface of the upper electric connector is provided with a movable contact piece and a static contact piece which are connected in series on the metal conducting rings, and the movable contact piece and the static contact piece are connected in series on the metal conducting rings. The lower electric connector is provided with a plurality of rings of plug-in grooves matched in a plug-in mode, electric contacts are arranged in the plug-in grooves, the upper electric connector is provided with a movable piece, the movable piece abuts against or is close to the movable contact piece, and when the coupling degree of the upper electric connector and the lower electric connector reaches the first position, the metal conducting ring and the electric contacts form normal contact. The coupling degree of the upper electric connector and the lower electric connector reaches a position II, so that the lower electric connector triggers the movable piece to drive the movable contact piece and the static contact piece to form electric connection; according to the electric connector, the electric shock condition between the metal conducting ring and the electric contact is reduced or completely avoided, the service life of the metal conducting ring is prolonged, and therefore the purpose of reducing the production cost is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, specifically a long-life electrical connector. Background Technology

[0002] Modern electrical connectors mainly consist of an upper connector and a lower connector that are electrically connected and make contact with each other. The upper connector has several concentric metal conductive rings of different diameters, while the lower connector has insertion slots that are coupled to the metal conductive rings. Each insertion slot has a bottom-push or side-push electrical contact. After the upper and lower connectors are coupled, the metal conductive rings will contact the electrical contacts to conduct electricity.

[0003] However, an electric shock occurs between the metal conductive ring and the electrical contact at the moment of contact. Repeated electric shocks will affect the service life of the metal conductive ring. The only way to increase the service life of the metal conductive ring is to use expensive metal materials (such as silver or copper) to make the metal conductive ring, which will increase the production cost of the electrical connector and make it difficult for the electrical connector to be sold in a highly competitive market.

[0004] In addition, during production or use, it is difficult to ensure that the metal conductive ring always maintains a perfectly round structure. An elliptical metal conductive ring may reduce the contact area with the electrical contacts. The smaller the contact area, the greater the electric shock, which will further aggravate the wear of the metal conductive ring. Therefore, it is necessary to avoid electric shock between the metal conductive ring and the electrical contacts as much as possible, so further improvements are needed to the current electrical connectors. Utility Model Content

[0005] The purpose of this invention is to solve the aforementioned problems and provide a long-life electrical connector with a simple and reasonable structure.

[0006] A long-life electrical connector includes an upper connector and a lower connector. The upper connector has a mating cavity containing several concentric metal conductive rings of different diameters. The top surface of the upper connector has a moving contact and a stationary contact connected in series on the metal conductive rings. The lower connector has several mating slots corresponding to each metal conductive ring, and electrical contacts are provided in the mating slots. The upper connector has a movable member that abuts against or approaches the moving contact. When the coupling degree between the upper and lower connectors reaches position one, the metal conductive rings and electrical contacts are in constant contact. Subsequently, when the coupling degree between the upper and lower connectors reaches position two, the lower connector triggers the movable member to drive the moving contact and the stationary contact to form an electrical connection.

[0007] The objective of this utility model can also be achieved by the following technical measures:

[0008] As a more specific embodiment, the moving part is made of a high-temperature resistant insulating material, which includes at least ceramics.

[0009] As a further embodiment, the power connector includes an upper connector and a mounting bracket connected to the top surface of the upper connector. A return spring is abutted between the upper side of the movable part and the mounting bracket, and the movable part is elastically connected to the upper connector via the return spring.

[0010] As a further embodiment, the movable component includes a pressing part and a guide post. The upper connector is provided with a guide structure. The guide post slides linearly within the guide structure, and its lower part extends into the insertion cavity and contacts and engages with the top surface of the lower electrical connector. The pressing part is integrally connected to one side of the guide post, and the pressing part abuts against the upper side of the movable contact piece.

[0011] As a further embodiment, the pressing part and / or the guide post are provided with a foolproof mounting structure, and the upper connecting seat is provided with a foolproof mating structure that cooperates with the foolproof mounting structure.

[0012] As a further embodiment, the guide structure includes a guide through hole formed in the top wall of the upper connecting seat, and a guide enclosure surrounding the guide through hole and disposed on the top surface of the upper connecting seat. The lower and upper parts of the guide post form a linear sliding fit with the guide through hole and the guide enclosure, respectively, and a limiting step surface is provided between the lower and upper parts of the guide post.

[0013] As a further embodiment, the installation error prevention structure includes a cut surface, which is disposed at the lower part of the guide post, and the error prevention mating structure includes a plane, which forms part of the guide through hole wall and corresponds to the cut surface.

[0014] As a further embodiment, the installation anti-mistake structure also includes an anti-mistake protrusion, which is radially connected to the upper part of the guide post. The anti-mistake mating structure includes a groove, which is opened on the guide plate and engages with the anti-mistake protrusion.

[0015] As a further embodiment, the movable component is provided with a spring positioning groove, and one end of the return spring is embedded in the spring positioning groove; the lower side of the mounting bracket is provided with a positioning protrusion, and the other end of the return spring is sleeved on the positioning protrusion.

[0016] As a further embodiment, a bimetallic strip is fixedly connected to the mounting bracket, and an insulating rod is provided on the lower side of the deformed part of the bimetallic strip. One end of the movable part is provided with a guide hole that slides linearly with the insulating rod, and the insulating rod abuts or approaches the upper side of the movable contact piece.

[0017] As a further embodiment, the upper electrical connector has an upper mounting channel at its center, and an inlet valve core is assembled and connected within the upper mounting channel; the lower electrical connector has a lower mounting channel at its center, and an inlet pipe that is movably connected to the inlet valve core is assembled and connected within the lower mounting channel.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention relates to a long-life electrical connector that reduces or completely eliminates electric shock between the metal conductive ring and the electrical contacts, thereby increasing the service life of the metal conductive ring and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0021] Figure 2 This is a schematic cross-sectional view of the power connector in this utility model (in the non-coupled state).

[0022] Figure 3 This is an enlarged structural diagram showing the disassembly of the power connector and the installation of the movable parts in this utility model.

[0023] Figure 4 This is a schematic diagram of the moving parts in this utility model.

[0024] Figure 5 This is a schematic diagram of the guide hole structure in this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See Figures 1 to 5 As shown, a long-life electrical connector includes an upper connector 1 and a lower connector 2. The upper connector 1 has a mating cavity 101, which contains several concentric metal conductive rings 3 of different diameters. The top surface of the upper connector 1 has a movable contact 4 and a stationary contact 5 connected in series on the metal conductive rings 3. The lower connector 2 has several mating grooves 201 corresponding to each metal conductive ring 3, and each groove 201 contains an electrical contact 6. The upper connector 1 has a movable member 7 that abuts against or approaches the movable contact 4. When the coupling degree between the upper connector 1 and the lower connector 2 reaches position one, the metal conductive rings 3 and the electrical contact 6 are in constant contact. Subsequently, when the coupling degree between the upper connector 1 and the lower connector 2 reaches position two, the lower connector 2 triggers the movable member 7 to drive the movable contact 4 and the stationary contact 5 to form an electrical connection.

[0027] Specifically, in the initial stage of coupling between the upper connector 1 and the lower connector 2 (i.e., coupling level to position one), even if the metal conductive ring 3 contacts the electrical contact 6, the conductive circuit can still remain disconnected, ensuring that no electric shock occurs when the metal conductive ring 3 and the electrical contact 6 come into contact. When fully coupled (i.e., coupling level to position two), the lower connector 2 pushes up the movable part 7 and slides upward. The triggered movable part 7 leaves the upper side of the moving contact 4, and the released moving contact 4 contacts the stationary contact 5, thereby connecting the conductive circuit and energizing it. However, no electric shock occurs between the metal conductive ring 3 and the electrical contact 6 in the contact state. Even if an electric shock occurs between the moving contact 4 and the stationary contact 5, it will not affect the lifespan of either contact. Therefore, the lifespan of the metal conductive ring 3 can be increased, eliminating the need to use expensive metal materials to make the metal conductive ring 3, thus reducing production costs.

[0028] The movable part 7 is made of a high-temperature resistant insulating material, which includes at least ceramics. The movable part 7 is made of a high-temperature resistant insulating material similar to ceramics, so that it will not creep or melt at high temperatures during use, thus ensuring the stability of the movable part 7.

[0029] The power connector 1 includes an upper connector 10 and a mounting bracket 11 connected to the top surface of the upper connector 10. A return spring 8 abuts against the upper side of the movable part 7 and the mounting bracket 11. The movable part 7 is elastically connected to the upper connector 10 through the return spring 8. After the power connector 1 and the lower connector 2 are separated, the structure automatically pushes the movable part 7 to reset through the return spring 8. After the reset, the movable part 7 can press the moving contact 4 to disconnect from the stationary contact 5.

[0030] The movable component 7 includes a pressing part 71 and a guide post 72. The upper connecting seat 10 is provided with a guide structure. The guide post 72 slides linearly within the guide structure, and its lower part 72a extends into the insertion cavity 101 and contacts and engages with the top surface of the lower electrical connector 2. The pressing part 71 is integrally connected to one side of the guide post 72, and the pressing part 71 abuts against the upper side of the movable contact piece 4. The guide post 72 can ensure that the movable component 7 can slide up and down without wobbling left and right, while the pressing part 71 can press down on the upper side of the movable contact piece 4 from top to bottom in a non-coupled state.

[0031] The pressing part 71 and / or the guide post 72 are provided with a foolproof mounting structure, and the upper connecting seat 10 is provided with a foolproof mating structure that cooperates with the foolproof mounting structure; the foolproof mounting structure and the foolproof mating structure can constrain the installation position of the movable part 7 and improve the assembly efficiency of the movable part 7.

[0032] In this embodiment, the guide structure includes a guide through hole 102 formed on the top wall of the upper connecting seat 10, and a guide enclosure 103 surrounding the guide through hole 102 and disposed on the top surface of the upper connecting seat 10. The lower part 72a and the upper part 72b of the guide post 72 form a linear sliding fit with the guide through hole 102 and the guide enclosure 103, respectively. A limiting step surface 721 is provided between the lower part 72a and the upper part 72b of the guide post 72, which abuts against the top surface of the upper connecting seat 10, so that the entire guide post 72 has a guide constraint structure.

[0033] In this embodiment, the installation anti-mistake structure includes a cut surface 722, which is disposed at the lower part 72a of the guide post 72. The anti-mistake mating structure includes a plane 104, which forms part of the wall of the guide through hole 102 and corresponds to the cut surface 722. After installation, the movable part 7 abuts against the plane 104 in the guide through hole 102 through the cut surface 722 of the guide post 72, thus restricting the axial rotation of the movable part 7.

[0034] The installation anti-mistake structure also includes an anti-mistake protrusion 73, which is radially connected to the upper part 72b of the guide post 72. The anti-mistake mating structure includes a groove 105, which is formed on the guide plate 103 and engages with the anti-mistake protrusion 73. The engagement between the anti-mistake protrusion 73 and the groove 105 can further restrict the axial rotation of the movable part 7 when it slides up and down.

[0035] The movable part 7 is provided with a spring positioning groove 723, and one end of the reset spring 8 is embedded in the spring positioning groove 723; the lower side of the mounting bracket 11 is provided with a positioning protrusion 111, and the other end of the reset spring 8 is sleeved on the positioning protrusion 111. This structure is simple, easy and quick to assemble, and can stably position the two ends of the reset spring 8. During repeated use, it ensures that the reset spring 8 will not easily shift, and prevents the movable part 7 from failing to function due to the reset spring 8.

[0036] A bimetallic strip 12 is fixedly connected to the mounting bracket 11. An insulating rod 13 is provided on the lower side of the deformed part of the bimetallic strip 12. One end of the movable member 7 is provided with a guide hole 701 that slides linearly with the insulating rod 13. The insulating rod 13 is abutted or close to the upper side of the movable contact 4. The cooperation between the bimetallic strip 12 and the insulating rod 13 enables the electrical connector to prevent dry burning. This structure is existing technology, but the difference is that the insulating rod 13 also uses the movable member 7 as a support structure, so that the movable member 7 can achieve the characteristic of dual function. Even if the movable member 7 and the insulating rod 13 act at the same position of the movable contact 4, they can achieve the same function without interfering with each other.

[0037] The upper electrical connector 1 has an upper mounting channel 106 at its center, and a water inlet valve core 14 is assembled and connected in the upper mounting channel 106; the lower electrical connector 2 has a lower mounting channel 202 at its center, and a water inlet pipe 15 that is movably connected to the water inlet valve core 14 is assembled and connected in the lower mounting channel 202; this structure adds the water inlet valve core 14 and the water inlet pipe 15, enabling the electrical connector to have functions such as bottom water inlet and / or bottom water outlet.

[0038] 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 long-life electrical connector, comprising an upper electrical connector and a lower electrical connector, wherein the upper electrical connector has a mating cavity, and the mating cavity has a plurality of concentric but different diameter metal conductive rings; the top surface of the upper electrical connector has a moving contact and a stationary contact connected in series on the metal conductive rings; the lower electrical connector has a plurality of mating slots corresponding to each metal conductive ring, and the mating slots are provided with electrical contacts, characterized in that: The power connector has a movable component that abuts against or approaches the moving contact. When the coupling degree between the power connector and the power connector reaches position one, the metal conductive ring and the electrical contact form constant contact. Subsequently, when the coupling degree between the power connector and the power connector reaches position two, the power connector triggers the movable component to drive the moving contact to form an electrical connection with the stationary contact.

2. The long-life electrical connector according to claim 1, characterized in that: The power connector includes an upper connector and a mounting bracket connected to the top surface of the upper connector. A return spring is abutted between the upper side of the movable part and the mounting bracket. The movable part is elastically connected to the upper connector via the return spring.

3. The long-life electrical connector according to claim 2, characterized in that: The movable component includes a pressing part and a guide post. The upper connecting seat is provided with a guide structure. The guide post slides linearly within the guide structure, and its lower part extends into the insertion cavity and contacts and engages with the top surface of the lower electrical connector. The pressing part is integrally connected to one side of the guide post, and the pressing part abuts against the upper side of the movable contact piece.

4. A long-life electrical connector according to claim 3, characterized in that: The pressing part and / or the guide post are provided with a foolproof mounting structure, and the upper connecting seat is provided with a foolproof mating structure that cooperates with the foolproof mounting structure.

5. A long-life electrical connector according to claim 4, characterized in that: The guide structure includes a guide through hole opened on the top wall of the upper connecting seat, and a guide enclosure surrounding the guide through hole and set on the top surface of the upper connecting seat. The lower and upper parts of the guide post form a linear sliding fit with the guide through hole and the guide enclosure, respectively. A limiting step surface is provided between the lower and upper parts of the guide post.

6. A long-life electrical connector according to claim 5, characterized in that: The installation error prevention structure includes a cut surface, which is located at the lower part of the guide post. The error prevention mating structure includes a plane, which forms part of the guide through hole wall and mates with the cut surface. The installation anti-mistake structure also includes an anti-mistake protrusion, which is radially connected to the upper part of the guide post. The anti-mistake mating structure includes a groove, which is opened on the guide plate and correspondingly engages with the anti-mistake protrusion.

7. A long-life electrical connector according to claim 2, characterized in that: The movable part is provided with a spring positioning groove, and one end of the reset spring is embedded in the spring positioning groove; the lower side of the mounting bracket is provided with a positioning protrusion, and the other end of the reset spring is sleeved on the positioning protrusion.

8. A long-life electrical connector according to claim 2, characterized in that: A bimetallic strip is fixedly connected to the mounting bracket. An insulating rod is provided on the lower side of the deformed part of the bimetallic strip. One end of the movable part is provided with a guide hole that slides linearly with the insulating rod. The insulating rod is abutted or close to the upper side of the movable contact piece.

9. A long-life electrical connector according to claim 1, characterized in that: The upper electrical connector has an upper mounting channel at its center, and an inlet valve core is assembled and connected in the upper mounting channel; the lower electrical connector has a lower mounting channel at its center, and an inlet pipe that is movably connected to the inlet valve core is assembled and connected in the lower mounting channel.

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