CN211670352U - Resistance-free plug connector - Google Patents
Resistance-free plug connector Download PDFInfo
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- CN211670352U CN211670352U CN202020490641.0U CN202020490641U CN211670352U CN 211670352 U CN211670352 U CN 211670352U CN 202020490641 U CN202020490641 U CN 202020490641U CN 211670352 U CN211670352 U CN 211670352U
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- right connecting
- left connecting
- connecting piece
- contact
- connecting sheet
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Abstract
A resistance-free plug connector comprises a conducting strip and an internal connection terminal, wherein the conducting strip comprises a left connecting strip and a right connecting strip, one end of the left connecting strip and one end of the right connecting strip are fixedly connected or abutted to the internal connection terminal, and the other ends of the left connecting strip and the right connecting strip are close to or contacted with each other; the left connecting sheet and the right connecting sheet are provided with expanding mechanisms which are linked; and the left connecting piece and the right connecting piece are connected with a pressure spring in a butting way. Before the plug-in connection with the external terminal, one end of the conducting strip is opened through the cam contact, so that the resistance-free plug-in connection with the external terminal is realized, the wear of the plug-in contact and the external terminal can be fundamentally avoided, and the service life of the plug-in connector is prolonged to the maximum extent; because the resistance-free insertion is realized, any auxiliary force-adding propelling mechanism is not required to be installed, and the manual direct operation is realized; the arc conducting strip and the pressure spring of design can increase the packing force of grafting contact by great extent, reduce the contact and generate heat, reduce electric fire risk.
Description
Technical Field
The utility model relates to a plug connector of cubical switchboard, concretely relates to non-resistance plug connector.
Background
In domestic low-voltage power distribution cabinets, a large part of the low-voltage power distribution cabinets are draw-out type switch cabinets, such as GCS, GCK, MNS and other cabinet types. The draw-out switch cabinet must use a primary plug connector, and the existing primary plug connector increases the number of plug contact pieces or makes an opening gap of the plug contact small to increase the occlusion pressure because the problem of self contact heating is solved. Due to economic cost considerations, a method of reducing the contact opening gap is generally used. But brings about at least two negative factors, namely, because the meshing pressure of the contacts is increased, the resistance is very high when the plug is plugged, so that the thrust must be increased, and the existing mechanism is difficult to realize; secondly, because the meshing pressure of the contact is increased, the friction force during plugging is increased, and the abrasion of the contact is greatly increased. The wear damages the conductive coating on the one hand and accelerates the decay of the crimping force on the other hand.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a non-resistance plug connector.
The utility model provides a non-resistance plug connector, includes conducting strip and inscription terminal, its characterized in that: the conducting strip comprises a left connecting piece and a right connecting piece, one end of the left connecting piece and one end of the right connecting piece are fixedly connected or abutted to the internal connecting terminal, and the other ends of the left connecting piece and the right connecting piece are close to or contacted with each other and are used for being contacted with an external terminal; the left connecting sheet and the right connecting sheet are provided with expanding mechanisms, and the left connecting sheet and the right connecting sheet are linked with the expanding mechanisms; and the left connecting piece and the right connecting piece are connected with a pressure spring in a butting way.
The utility model discloses a theory of operation: before the plug connector is plugged, the expansion mechanism acts and enables the contact ends of the left connecting sheet and the right connecting sheet to be opened, so that a plugging port is formed, the expansion mechanism recovers after the external terminal is plugged into the plugging port, and the left connecting sheet and the right connecting sheet press the external terminal under the action of the pressure spring.
Further comprises the following steps: the expansion mechanism comprises a cam contact which is rotatably arranged, and two sides of the cam contact are respectively attached to the inner walls of the left connecting sheet and the right connecting sheet. The cam rotates to expand the left connecting sheet and the right connecting sheet, and the contact ends of the left connecting sheet and the right connecting sheet are separated.
Further comprises the following steps: the cam contact is elliptical, the cam contact is located in the middle of the left connecting sheet and the right connecting sheet, contact blocks are arranged on the inner walls of the left connecting sheet and the right connecting sheet and correspond to the positions of the cam contact in a whole body, and the positions, in contact with the cam contact, of the contact blocks are inner arc-shaped. The cam contact and the contact block are stable in matching structure and long in service life.
Further comprises the following steps: the left connecting piece and the right connecting piece are of arc structures and are arranged oppositely, the pressure spring is an arc spring pressing piece, the pressure spring is arranged on the outer sides of the left connecting piece and the right connecting piece in a buckled mode, the two ends of the pressure spring are respectively abutted to the end portions of the two ends of the left connecting piece or the right connecting piece, and the middle of the pressure spring is fixedly arranged. Left side connection piece and right connection piece and pressure spring structure all belong to simple arc structure, but the assembly back elasticity is less, and the stable joint of left side connection piece and right connection piece of being convenient for catches and compresses tightly external terminal.
Further comprises the following steps: the cam contact comprises a support frame and an insulating connecting column, wherein the insulating connecting column is rotatably installed on the support frame, one end of the insulating connecting column is fixedly connected to the central point of the cam contact, and the other end of the insulating connecting column is fixedly connected with a hand wheel. The opening and closing of the conducting strip are indirectly controlled by rotating the hand wheel to rotate the cam contact.
The utility model has the advantages that: 1. before the plug-in connection with the external terminal, one end of the conducting strip is opened through the cam contact, so that the non-resistance plug-in connection with the external terminal is realized, the wear of the plug-in contact (conducting strip) and the external terminal can be fundamentally avoided, and the service life of the connector is prolonged to the maximum extent;
2. because the resistance-free insertion is realized, any auxiliary force-adding propelling mechanism is not required to be installed, and the manual direct operation is realized;
3. the designed arc-shaped conducting plate and the pressure spring can greatly increase the pressing force of the plug contact, reduce the heating of the contact and reduce the risk of electrical fire;
4. the utility model is simple in operation, the operating force is little, and the sexual valence is than higher.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the state of the present invention before plugging;
fig. 5 is a schematic diagram of the state after the insertion of the present invention.
In the figure, 1, a conductive sheet; 11. a contact block; 2. a pressure spring; 3. a cam contact; 4. an insulating connecting column; 5. a support frame; 6. an internal connection terminal; 7. an external terminal; 8. a handwheel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention. It should be noted that the terms of orientation such as left, middle, right, up and down in the examples of the present invention are only relative to each other or are referred to the normal use status of the product, and should not be considered as limiting.
A resistance-free plug connector comprises a conducting strip 1 and an internal terminal 6, wherein the conducting strip 1 comprises a left connecting strip and a right connecting strip which are identical in structure and symmetrical to each other, one ends of the left connecting strip and the right connecting strip are fixedly connected or abutted (pressed) on the internal terminal 6, and the other ends of the left connecting strip and the right connecting strip are close to or contacted with each other; the left connecting sheet and the right connecting sheet are provided with expanding mechanisms, and the left connecting sheet and the right connecting sheet are linked with the expanding mechanisms; and the left connecting piece and the right connecting piece are connected with a pressure spring 2 in a butting way.
The expansion mechanism comprises a cam contact 3 which is rotatably arranged, and two sides of the cam contact 3 are respectively attached to the inner walls of the left connecting sheet and the right connecting sheet; the cam contact 3 is elliptical, the cam contact 3 is positioned in the middle of the left connecting sheet and the right connecting sheet, contact blocks 11 are integrally arranged on the inner walls of the left connecting sheet and the right connecting sheet and correspond to the positions of the cam contact 3, and the positions, which are in contact with the cam contact 3, of the contact blocks 11 are in an inner arc shape; left side connection piece and right connection piece are the arc structure and set up in opposite directions, compression spring 2 is the arc spring preforming the outside of left side connection piece and right connection piece is all detained and is equipped with compression spring 2, compression spring 2's both ends respectively the butt be in the both ends tip of left side connection piece or right connection piece, compression spring 2's middle part is fixed to be set up.
In addition, including support frame 5 and insulating spliced pole 4, insulating spliced pole 4 rotates to be installed on support frame 5, the one end fixed connection of insulating spliced pole 4 is in on the central point of cam contact 3, the other end fixedly connected with hand wheel 8 of insulating spliced pole 4.
The utility model discloses a theory of operation: before the plug connector is plugged, the expansion mechanism acts and enables the contact ends of the left connecting sheet and the right connecting sheet to be opened, so that a plugging port is formed, the expansion mechanism recovers after the external terminal is plugged into the plugging port, and the left connecting sheet and the right connecting sheet press the external terminal under the action of the pressure spring. The hand wheel is rotated, the cam contact is rotated by the hand wheel through the insulation connecting column, and after the cam contact is rotated, the side face of the long shaft pushes the contact block to move towards the outer side of the conducting sheet, so that the left connecting sheet and the right connecting sheet are opened.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a non-resistance plug connector, includes conducting strip and inscription terminal, its characterized in that: the conducting strip comprises a left connecting piece and a right connecting piece, one end of the left connecting piece and one end of the right connecting piece are fixedly connected or abutted to the internal connecting terminal, and the other ends of the left connecting piece and the right connecting piece are close to or contacted with each other; the left connecting sheet and the right connecting sheet are provided with expanding mechanisms, and the left connecting sheet and the right connecting sheet are linked with the expanding mechanisms; and the left connecting piece and the right connecting piece are connected with a pressure spring in a butting way.
2. The non-resistance plug connector of claim 1, wherein: the expansion mechanism comprises a cam contact which is rotatably arranged, and two sides of the cam contact are respectively attached to the inner walls of the left connecting sheet and the right connecting sheet.
3. The non-resistance plug connector of claim 2, wherein: the cam contact is elliptical, the cam contact is located in the middle of the left connecting sheet and the right connecting sheet, contact blocks are arranged on the inner walls of the left connecting sheet and the right connecting sheet and correspond to the positions of the cam contact in a whole body, and the positions, in contact with the cam contact, of the contact blocks are inner arc-shaped.
4. A resistance-free plug connector according to claim 2 or 3, wherein: the left connecting piece and the right connecting piece are of arc structures and are arranged oppositely, the pressure spring is an arc spring pressing piece, the pressure spring is arranged on the outer sides of the left connecting piece and the right connecting piece in a buckled mode, the two ends of the pressure spring are respectively abutted to the end portions of the two ends of the left connecting piece or the right connecting piece, and the middle of the pressure spring is fixedly arranged.
5. The non-resistance plug connector of claim 2, wherein: the cam contact comprises a support frame and an insulating connecting column, wherein the insulating connecting column is rotatably installed on the support frame, one end of the insulating connecting column is fixedly connected to the central point of the cam contact, and the other end of the insulating connecting column is fixedly connected with a hand wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020490641.0U CN211670352U (en) | 2020-04-07 | 2020-04-07 | Resistance-free plug connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020490641.0U CN211670352U (en) | 2020-04-07 | 2020-04-07 | Resistance-free plug connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211670352U true CN211670352U (en) | 2020-10-13 |
Family
ID=72743048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020490641.0U Active CN211670352U (en) | 2020-04-07 | 2020-04-07 | Resistance-free plug connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211670352U (en) |
-
2020
- 2020-04-07 CN CN202020490641.0U patent/CN211670352U/en active Active
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