CN110676624A

CN110676624A - Contact and connector

Info

Publication number: CN110676624A
Application number: CN201910906990.8A
Authority: CN
Inventors: 李永聪; 杨国刚; 户晓磊
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-01-10

Abstract

The invention relates to a contact and a connector. The contact includes the contact pin and locates the grounding lug of contact pin afterbody, thereby the grounding lug realizes with connector housing elasticity butt that the ground connection switches on, the grounding lug includes the main leaf body, and the main leaf body is connected with the shell fragment, and the shell fragment includes first section of bending, and first section of bending is connected with the second section of bending that is used for with connector housing elasticity butt through first changeover portion, and the second section of bending is connected with the third section of bending that is used for with insulator elasticity butt through the second changeover portion, forms the buffer space that is used for elastic deformation between third section of bending and connector housing. The contact piece is directly connected with the connector shell through the tail grounding sheet to realize grounding conduction, so that the contact reliability of the contact piece and the connector shell is improved; after the connector is installed, the connector shell is conducted with the equipment shell to realize ground protection, and the problems that installation is inconvenient and the connector occupies too large internal space of the equipment due to line pressing operation are avoided.

Description

Contact and connector

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a contact element and a connector adopting the same.

Background

When the alternating current power connector is used, the grounding pin is generally required to be connected to a panel of the equipment for grounding treatment, so as to guide faults or prevent lightning strike grounding and electromagnetic shielding grounding, thereby preventing damage to the equipment or human body.

The grounding mode of the existing connector is generally that a contact is connected with a connector through a metal sheet or a wire, the other end of the wire is connected with the connector, finally, the metal sheet or the connector is connected to an equipment panel in equipment, and then the panel is conducted with an equipment shell to realize grounding protection. However, both grounding methods, whether through a metal sheet or a connector at the other end of the wire, have the following disadvantages: (1): the occupied internal space of the equipment is large; (2): the installation is inconvenient, and the wire pressing operation is required; (3): the contact needs to be communicated with the equipment panel firstly, and then the equipment panel is communicated with the equipment shell to be grounded, so that the cost is increased.

Disclosure of Invention

In order to solve the technical problems, the invention designs the contact element, the tail part of the contact element is directly connected with the connector shell through the elastic sheet to realize grounding, and the problems that the connector occupies too large internal space of equipment and is inconvenient to install are solved.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The contact piece provided by the invention comprises a contact pin and a grounding sheet arranged at the tail part of the contact pin, wherein the grounding sheet is elastically abutted with the connector shell after the contact piece is installed, so that the contact pin is grounded and conducted with the connector shell.

The contact element of the invention is further realized by adopting the following technical scheme.

Further, the grounding piece is including being used for the main lamellar body that links to each other with the contact pin, and the bottom of main lamellar body is connected with the shell fragment, the shell fragment is including being used for the first section of bending of being connected with main lamellar body, and the first changeover portion that the bottom of first section of bending set up through the downward sloping is connected with the second section of bending that is used for with connector housing elasticity butt, and the second section of bending is connected with the third section of bending that is used for with insulator elasticity butt through the second changeover portion that the tilt up set up, and the back is accomplished in the contact installation form the buffer space that is used for elastic deformation between third section of bending and the connector housing.

Furthermore, the contact pin and the grounding piece are arranged in a split mode and are detachably and fixedly connected.

Furthermore, a connecting hole for fixedly connecting the main sheet body and the contact pin through a screw is formed in the main sheet body.

Furthermore, the grounding plate and the contact pin are of an integrated punch forming structure.

Furthermore, the included angle between the main sheet body and the contact pin is 90 degrees.

Furthermore, more than two spring plates are arranged in parallel along the width direction of the main plate body.

Furthermore, the elastic sheet is of a Z-shaped structure.

The technical scheme of the connector provided by the invention is as follows:

the connector comprises a connector shell installed on the equipment shell, an insulator assembled in the connector shell and a contact element assembled in the insulator, wherein the contact element comprises a contact pin and a grounding sheet arranged at the tail part of the contact pin, and the grounding sheet is elastically abutted with the connector shell after the contact element is installed so as to realize the grounding conduction of the contact pin and the connector shell.

The connector of the invention is further realized by adopting the following technical scheme.

Further, the contact includes the contact pin and locates the grounding lug of contact pin afterbody, and this grounding lug is including being used for the main lamellar body that links to each other with the contact pin, and the bottom of main lamellar body is connected with the shell fragment, the shell fragment is including being used for the first section of bending of being connected with the main lamellar body, and the first changeover portion that the bottom of first section of bending set up through the downward sloping is connected with the second section of bending that is used for with connector housing elasticity butt, and the second section of bending is connected with the third section of bending that is used for with insulator elasticity butt through the second changeover portion that the tilt up set up, and the back is accomplished in the contact installation formation is used for elastic deformation's buffer space between third section of bending and the connector.

Furthermore, the elastic sheet is of a Z-shaped structure.

By means of the technical scheme, the contact piece is connected with the connector shell through the grounding piece arranged at the tail of the contact piece, the second bending section deforms when being in elastic abutting contact with the connector shell and provides elastic contact force for the third bending section to abut against the insulator, and the third bending section feeds back to the second bending section and provides elastic contact pressure with the second bending section and the connector shell after being in elastic abutting deformation with the insulator, so that the elastic contact pressure between the second bending section and the connector shell is increased, the contact reliability of the grounding piece and the connector shell is improved, and the grounding protection of the contact pin contact piece and the connector shell can be guaranteed even if equipment is in a high-frequency vibration environment. Thereby the connector housing switches on with equipment housing after the connector installation that is equipped with this contact realizes ground protection, reduces ground connection treatment cost, and it is too big to have avoided the installation that needs the line ball operation to bring inconvenient and the connector to occupy the equipment inner space.

Drawings

Fig. 1 is a perspective view of a contact in an embodiment of a connector of the present invention.

Fig. 2 is a side view of a grounding plate in a contact in an embodiment of the connector of the present invention.

Fig. 3 is a schematic view of a structure after the contact mounting in the connector embodiment of the present invention is completed.

Fig. 4 is a schematic structural view of the connector in the connector embodiment of the present invention after being mounted on the device housing.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

In the embodiment of the connector of the present invention, as shown in fig. 1 to 4, the connector includes a connector housing 3 mounted on an equipment housing 4, an insulator 2 fitted in the connector housing 3, and a contact member fitted in the insulator 2, wherein the contact member includes a pin 10 and a grounding strip 11 provided at a tail portion of the pin; with reference to fig. 2, the grounding plate 11 includes a main plate 111 connected to the contact pin, the main plate is a plate structure vertically extending toward the connector housing so as to be close to the connector housing and further achieve contact, a bottom end of the main plate 111 is connected to an elastic plate 112, the elastic plate 112 includes a first bending section 1121 for being connected to the main plate 111, a second bending section 1123 for being elastically abutted to the connector housing 3 is connected to a bottom end of the first bending section 1121 through a first transition section 1122 inclined downward, and the second bending section 1123 is connected to a third bending section 1125 for being elastically abutted to the insulator 2 through a second transition section 1124 inclined upward. The bending directions of the second bending section and the third bending section are opposite, so that the elastic sheet is of a Z-shaped structure on the whole, the bottom end of the second bending section is higher than that of the third bending section, and after the contact element is installed, a buffer space 5 used for elastic deformation is formed between the third bending section 1125 and the connector shell 3. The bottom of the second bending section is a contact part which is abutted against the connector shell, and the top of the third bending section is a contact part which is abutted against the insulator.

In this embodiment, the elastic sheet 112 formed by the first bending section 1121, the first transition section 1122, the second bending section 1123, the second transition section 1124 and the third bending section 1125 connected in sequence is an integrally formed sheet type part, and the elastic sheet and the main sheet body are integrally formed to form the grounding sheet. The pin 10 and the grounding strip 11 are detachable structures that are separately arranged, and the main body 111 of the grounding strip is provided with a connecting hole for fixedly connecting with the pin through a screw 13.

Preferably, the included angle between the main body 111 and the pin 10 is 90 °, and the included angle between the first transition portion 1122 and the second transition portion 1124 is 90 °, but the present invention does not limit the included angles. In this embodiment, as shown in fig. 1, four spring plates 112 are arranged in parallel along the width direction of the main plate 111, so as to ensure the reliability of the ground conduction with the connector housing.

With reference to fig. 3, after the contact is mounted in the insulator 2 of the connector housing 3, the first transition section 1122 is obliquely disposed so that the spring plate has a certain elastic deformation when elastically abutting against the connector housing, and the elastic deformation enables the spring plate to stably contact with the connector housing; when the third bending section 1125 elastically abuts against the insulator, the elastic piece has elastic deformation capability due to the second transition section obliquely arranged, on one hand, the third bending section reliably abuts against the insulator, and on the other hand, under the action of contact pressure of the insulator 2 pressing the third bending section 1125 downwards, the second transition section 1124 can transmit the contact pressure to the second bending section 1123, so that the contact pressure of the second bending section 1123 and the connector housing 3 is increased, and the contact reliability is guaranteed.

In this embodiment, the insulator 2 is composed of a front insulator 21 and a rear insulator 22, which are combined to mount and position the contacts; the mounting process is to insert the contact into the tail of the front insulator, then to mount the rear insulator on the tail of the front insulator to fix the contact, in the mounting process of the rear insulator, the rear insulator 22 elastically abuts against the third bent section 1125 and presses and deforms it downward, and the buffer space 5 provides a moving space for the elastic deformation.

Referring to fig. 4, after the connector is mounted on the device housing 4, the connector housing 3 is in contact with the device housing 4 to achieve conduction, so that ground protection of the connector is achieved. It should be noted that the connector housing and the insulator described in this embodiment are only for convenience of describing the plug-in fitting relationship between the two, and do not limit the structure thereof.

In the embodiment of the contact according to the present invention, the structure of the contact is the same as that of the contact in the above-mentioned connector embodiment, and details are not described herein.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims

1. A contact member, characterized in that: including the contact pin and locate the grounding strip of contact pin afterbody, thereby this grounding strip realizes the ground connection of contact pin and connector housing to switch on with connector housing elasticity butt after the contact installation is accomplished.

2. The contact of claim 1, wherein: the grounding piece is including being used for the main lamellar body that links to each other with the contact pin, and the bottom of main lamellar body is connected with the shell fragment, the shell fragment is including being used for the first section of bending of being connected with main lamellar body, and the first changeover portion that the bottom of first section of bending set up through the downward sloping is connected with the second section of bending that is used for with connector housing elasticity butt, and the second section of bending that the second section of bending set up through the tilt up is connected with the third section of bending that is used for with insulator elasticity butt, and the back is accomplished in the contact installation form the buffer space that is used for elastic deformation between third section of bending and the connector housing.

3. The contact of claim 1 or 2, wherein: the contact pin and the grounding piece are arranged in a split mode and detachably and fixedly connected.

4. The contact of claim 3, wherein: the main piece body is provided with a connecting hole for fixedly connecting with the contact pin through a screw.

5. The contact of claim 1 or 2, wherein: the grounding piece and the contact pin are of an integrated punch forming structure.

6. The contact of claim 2, wherein: the main blade body and the contact pin form an included angle of 90 degrees.

7. The contact of claim 2, wherein: the elastic sheets are provided with more than two sheets in parallel along the width direction of the main sheet body.

8. The contact of claim 2, wherein: the elastic sheet is of a Z-shaped structure.

9. A connector including a connector housing mounted on an apparatus housing, an insulator fitted in the connector housing, and a contact fitted in the insulator, characterized in that: the contact is according to any one of claims 1 to 8.