CN214849186U - Electronic connector for transmitting large current - Google Patents
Electronic connector for transmitting large current Download PDFInfo
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- CN214849186U CN214849186U CN202120987377.6U CN202120987377U CN214849186U CN 214849186 U CN214849186 U CN 214849186U CN 202120987377 U CN202120987377 U CN 202120987377U CN 214849186 U CN214849186 U CN 214849186U
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- needle
- spring
- peripheral surface
- axle
- electronic connector
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Abstract
The utility model relates to an electronic connector of transmission heavy current, including the needle tubing and set gradually the needle axle in the needle tubing, spring and tail stopper, tail stopper and needle tubing interference fit, be provided with the insulating pearl of electrical property between needle axle and the spring, the needle axle has extension and connecting portion, the needle tubing inner peripheral surface is provided with the restriction portion of restriction needle axle, connecting portion are mobilizable under the restriction of restriction portion set up in the needle tubing, the inner peripheral surface of restriction portion and the outer peripheral face cooperation of needle axle extension, the terminal surface of connecting portion is provided with the inclined plane, be provided with a contact glide plane between inclined plane lower extreme and the connecting portion outer peripheral face, insulating pearl under the effect of spring with inclined plane sliding contact. The utility model discloses a ceramic insulation pearl makes the electric current of needle axle can not flow to the tail stopper through the spring, makes the connector can transmit heavy current, and the equipment of connector need not the riveting needle tubing, has avoided the risk that the needle tubing collapses; the needle tube limiting part is matched with the longer extending part of the needle shaft, so that the swing angle of the needle shaft is very small.
Description
Technical Field
The utility model relates to a connector technical field, in particular to transmit electronic connector of heavy current.
Background
The spring needle is a spring type probe formed by three basic components, namely a needle shaft, a spring and a needle tube, is widely applied to semiconductor equipment, plays a role in electric connection, and is a connector widely applied. The spring needle is in the use, need needle axle, the needle tubing is the electric conduction, in order to guarantee that needle axle and needle tubing have good conducting state, the needle axle needs the slope for the needle axle has two contacts with the needle tubing steady contact, but if the slope is too much, can make needle axle beat angle big, thereby make the terminal surface displacement volume of needle axle big, can make the needle axle terminal surface shift out the scope that can contact with connector matched with terminal, lead to contact failure between connector and the complex terminal. Furthermore, when the connector needs to transmit a large high-frequency current, the spring connected to the pin shaft, which is also metal, generates impedance due to the current flowing through the spring, so that the spring is burned out, thereby damaging the connector.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides an electronic connector for transmitting large current.
In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides an electronic connector of transmission heavy current, includes the needle tubing and sets gradually needle axle, spring and tail stopper in the needle tubing, tail stopper and needle tubing interference fit, be provided with the insulating pearl of electrical property between needle axle and the spring, the needle axle has extension and connecting portion, the needle tubing inner peripheral surface is provided with the restriction portion of restriction needle axle, connecting portion are mobilizable under the restriction of restriction portion set up in the needle tubing, the inner peripheral surface of restriction portion and the outer peripheral face cooperation of needle axle extension, the terminal surface of connecting portion is provided with the inclined plane, be provided with a contact glide plane between inclined plane lower extreme and the connecting portion outer peripheral face, insulating pearl under the effect of spring with inclined plane sliding contact.
In the above technical solution, a ratio of a length of the defining portion in the axial direction to a length of the protruding portion in the axial direction is 1: 3.5.
In the technical scheme, the included angle between the inclined plane and the axial direction of the needle shaft is 12 degrees.
In the above technical solution, the inner diameter of the limiting portion is smaller than the outer diameter of the connecting portion.
In the above technical solution, the contact sliding surface is an arc surface, and a projection of the arc surface on a radial plane is a triangle.
In the technical scheme, the tail plug comprises a positioning column, a guide part, an interference connecting part, a flange and a pin which are coaxially arranged in sequence, wherein one end of the spring is sleeved on the positioning column, the outer peripheral surface of the guide part is in clearance fit with the inner peripheral surface of the interference connecting part, the outer peripheral surface of the interference connecting part is in interference fit with the inner peripheral surface of the needle tube, and the end surface of the needle tube is abutted against one side of the flange.
In the above technical solution, the outer peripheral surface of the flange is flush with the outer peripheral surface of the needle tube.
In the technical scheme, the outer peripheral surface of the needle tube is provided with an annular step, and the annular step is positioned on the outer periphery of the tail plug.
In the above technical scheme, the insulating beads are ceramic insulating beads.
The utility model has the advantages that the utility model has reasonable structure, novel design and strong practicability, the needle tube, the needle shaft and the tail plug are made of copper materials, the spring is made of stainless steel, the insulating beads are ceramic insulating beads, the electric conductivity between the needle tube, the needle shaft and the tail plug is ensured, the current of the needle shaft can not flow to the tail plug through the spring through the ceramic insulating beads, and the current can be completely prevented from passing through the spring, so that the connector can transmit large current; during assembly, a needle shaft is inserted from the tail of the needle tube, an insulating bead is arranged from the tail of the needle tube, then a spring is assembled from the tail of the needle tube, and finally a tail plug is pressed in to complete the assembly of the connector, the needle tube does not need to be riveted, and the risk of collapse of the needle tube is avoided; the needle tube limiting part is matched with the longer extending part of the needle shaft, and the length of the limiting part is longer, so that the swing angle of the needle shaft is very small, and the risk of poor contact between the connector and the other matched connector terminal is reduced; the spring acts on the needle shaft inclined plane through the insulating ball, so that the needle shaft can incline, the contact sliding surface is stably contacted with the inner peripheral surface of the needle tube, the current is prevented from flowing through the spring, the cup spring is prevented, and the connector can be used for carrying out overlarge current.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional structure of the present invention.
Fig. 3 is an exploded schematic view of the present invention.
Fig. 4 is a schematic view of the three-dimensional structure of the needle shaft of the present invention.
Fig. 5 is a schematic view of the needle shaft of the present invention.
In the figure: 1. a needle tube; 11. a limiting part; 12. a step; 2. a needle shaft; 21. a protruding portion; 22. a connecting portion; 23. a bevel; 24. contacting the sliding surface; 3. a spring; 4. a tail plug; 41. a positioning column; 42. a guide section; 43. an interference connection; 44. a flange; 45. a pin; 5. and (4) insulating beads.
Detailed Description
The embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-5, an electronic connector for transmitting large current comprises a needle tube 1, a needle shaft 2, a spring 3 and a tail plug 4, which are sequentially arranged in the needle tube 1, wherein the tail plug 4 is in interference fit with the needle tube 1, an electrically insulating bead 5 is arranged between the needle shaft 2 and the spring 3, the needle shaft 2 is provided with an extending part 21 and a connecting part 22, the inner circumferential surface of the needle tube 1 is provided with a limiting part 11 for limiting the needle shaft 2, the connecting part 22 is movably arranged in the needle tube 1 under the limitation of the limiting part 11, the inner circumferential surface of the limiting part 11 is matched with the outer circumferential surface of the extending part 21 of the needle shaft 2, the end surface of the connecting part 22 is provided with an inclined surface 23, a contact sliding surface 24 is arranged between the lowest end of the inclined surface 23 and the outer circumferential surface of the connecting part 22, and the insulating bead 5 is in sliding contact with the inclined surface 23 under the action of the spring 3. The insulating beads 5 are ceramic insulating beads 5.
The ratio of the length of the defining portion 11 in the axial direction to the length of the projecting portion 21 in the axial direction is 1: 3.5. Thereby reducing the deflection angle of the needle shaft 2 and ensuring that the needle shaft 2 can be accurately contacted with another connector terminal.
The angle between the inclined surface 23 and the axial direction of the needle shaft 2 is 12 degrees. When the needle shaft 2 is pressed down, the insulating bead 5 on the inclined surface 23 of the needle shaft 2 pushes the needle shaft 2 under the action of the spring 3, so that the needle shaft 2 is inclined, the contact sliding surface 24 of the connecting part 22 is contacted with the inner circumferential surface of the needle tube 1, and the needle tube 1 is kept in good contact with the needle shaft 2.
The inner diameter of the defining portion 11 is smaller than the outer diameter of the connecting portion 22.
The contact sliding surface 24 is a curved surface whose projection on a radial plane is triangular.
The tail plug 4 comprises a positioning column 41, a guide part 42, an interference connection part 43, a flange 44 and a pin 45 which are coaxially arranged in sequence, one end of the spring 3 is sleeved on the positioning column 41, the outer peripheral surface of the guide part 42 is in clearance fit with the inner peripheral surface of the interference connection part 43, the outer peripheral surface of the interference connection part 43 is in interference fit with the inner peripheral surface of the needle tube 1, and the end surface of the needle tube 1 is abutted to one side of the flange 44. During assembly, the guide part 42 of the tail plug 4 is inserted into the needle tube 1, and then the tail plug 4 is forcibly pressed into the needle tube 1 by a machine, so that the tail plug 4 is stably fixed in the needle tube 1, and the assembly is completed.
The outer peripheral surface of the flange 44 is flush with the outer peripheral surface of the needle tube 1.
The outer circumference of the needle tube 1 is provided with an annular step 12, and the annular step 12 is positioned on the outer circumference of the tail plug 4. The installation of the connector is convenient.
The utility model has the advantages of reasonable structure, novel design and strong practicability, the needle tube 1, the needle shaft 2 and the tail plug 4 are made of copper materials, the spring 3 is made of stainless steel, the insulating beads 5 are ceramic insulating beads 5, the electric conductivity between the needle tube 1, the needle shaft 2 and the tail plug 4 is ensured, the current of the needle shaft 2 can not flow to the tail plug 4 through the spring 3 through the ceramic insulating beads 5, the current can be completely prevented from passing through the spring 3, and the connector can transmit large current; during assembly, the needle shaft 2 is inserted from the tail part of the needle tube 1, the insulating beads 5 are arranged from the tail part of the needle tube 1, then the spring 3 is assembled from the tail part of the needle tube 1, and finally the tail plug 4 is pressed in, so that the assembly of the connector is completed, the needle tube 1 is not required to be riveted, and the risk of collapse of the needle tube 1 is avoided; the limiting part 11 of the needle tube 1 is matched with the longer extension part 21 of the needle shaft 2, and the length of the limiting part 11 is longer, so that the swing angle of the needle shaft 2 is small, and the risk of poor contact between the connector and the other matched connector terminal is reduced; the spring 3 acts on the inclined surface 23 of the needle shaft 2 through the insulating ball 5, so that the needle shaft 2 can incline, the contact sliding surface 24 is stably contacted with the inner circumferential surface of the needle tube 1, the current is prevented from flowing through the spring 3, the cup spring 3 is prevented from being burnt, and the connector can be used for over-current.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the present invention.
Claims (9)
1. The utility model provides an electronic connector of transmission heavy current, its characterized in that includes the needle tubing and sets gradually needle axle, spring and tail stopper in the needle tubing, tail stopper and needle tubing interference fit, be provided with the insulating pearl of electrical property between needle axle and the spring, the needle axle has extension and connecting portion, the needle tubing inner peripheral surface is provided with the restriction portion of restriction needle axle, connecting portion are mobilizable under the restriction of restriction portion in setting up the needle tubing, the inner peripheral surface of restriction portion and the outer peripheral face cooperation of needle axle extension, the terminal surface of connecting portion is provided with the inclined plane, be provided with a contact glide plane between inclined plane lower extreme and the connecting portion outer peripheral face, insulating pearl under the effect of spring with inclined plane sliding contact.
2. An electronic connector for transmitting a large current according to claim 1, wherein the ratio of the length of said defining portion in the axial direction to the length of said projecting portion in the axial direction is 1: 3.5.
3. An electronic connector for transmitting large electric current according to claim 2, wherein the angle between the inclined surface and the axial direction of the pin shaft is 12 °.
4. An electronic connector for transmitting large current according to claim 3, wherein the inner diameter of the defining portion is smaller than the outer diameter of the connecting portion.
5. An electronic connector for transmitting large electric currents as claimed in claim 4, wherein said contact sliding surface is a curved surface having a triangular projection on a radial plane.
6. The electronic connector for transmitting large current according to claim 5, wherein the tail plug includes a positioning column, a guiding portion, an interference connection portion, a flange and a pin, the positioning column, the guiding portion, the interference connection portion, the flange and the pin are coaxially arranged in sequence, one end of the spring is sleeved on the positioning column, an outer peripheral surface of the guiding portion is in clearance fit with an inner peripheral surface of the interference connection portion, an outer peripheral surface of the interference connection portion is in interference fit with an inner peripheral surface of the needle tube, and an end surface of the needle tube abuts against one side of the flange.
7. An electronic connector for carrying large electrical currents as claimed in claim 6, wherein said flange has an outer peripheral surface flush with the outer peripheral surface of said barrel.
8. An electronic connector for transmitting large electric current according to claim 7, wherein the outer peripheral surface of the needle tube is provided with an annular step, and the annular step is located on the outer periphery of the tail plug.
9. An electronic connector for transmitting high current according to claim 8, wherein the insulating beads are ceramic insulating beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120987377.6U CN214849186U (en) | 2021-05-10 | 2021-05-10 | Electronic connector for transmitting large current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120987377.6U CN214849186U (en) | 2021-05-10 | 2021-05-10 | Electronic connector for transmitting large current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214849186U true CN214849186U (en) | 2021-11-23 |
Family
ID=78771509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120987377.6U Active CN214849186U (en) | 2021-05-10 | 2021-05-10 | Electronic connector for transmitting large current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214849186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084897A (en) * | 2022-06-28 | 2022-09-20 | 东莞市燊瑞电子科技有限公司 | Satisfy stable transmission's of big current bullet needle that charges for bluetooth earphone |
-
2021
- 2021-05-10 CN CN202120987377.6U patent/CN214849186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084897A (en) * | 2022-06-28 | 2022-09-20 | 东莞市燊瑞电子科技有限公司 | Satisfy stable transmission's of big current bullet needle that charges for bluetooth earphone |
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