CN103050809A - Separated protection type electric connector - Google Patents

Abstract

The invention relates to the field of electrical connectors, in particular to a separation protection type electrical connector. The electrical connector uses the front end as the plug-in terminal, and includes a housing and a floating insulator and a fixed insulator assembled in the housing. The fixed insulator is fixedly equipped with standard contacts, and the floating insulator is provided with one-to-one correspondence with the standard contacts. Socket hole, the standard contact is fitted on the fixed insulator through the contact mounting sleeve and blocks both ends of the contact mounting sleeve, the contact mounting sleeve extends into the socket hole of the floating insulator and prevents separation from the front and rear of the floating insulator Sliding and sealing fit; when the electrical connector is separated from the adapter connector, the contact mounting sleeve will separate the insertion hole of the floating insulator from the front and back, and the standard contact will separate the inner hole of the contact mounting sleeve from the front and back. It can be seen that this The invented separation protection type electrical connector solves the problem of poor self-protection and sealing performance after separation of the existing electrical connectors using standard contacts.

Description

Separation Protected Electrical Connector

technical field

The invention relates to the field of electrical connectors, in particular to a separation protection type electrical connector.

Background technique

With the rapid development of electric power and communication technology, the application range of electrical connectors is becoming more and more extensive. The existing electrical connectors generally include a housing, an insulator fixedly assembled in the housing, and an insulator fixedly assembled in the housing directly through the insulator. The contact piece, wherein the housing is a protective piece, and the contact piece is used to transmit electric energy. However, some occasions require that the electrical connector is still charged after separation, and these occasions often have climate factors such as heat flow and rain, which will cause a short circuit of the contacts at the corresponding electrical connector, so the electrical connector used in this occasion needs to have The function of self-protection and sealing after separation. In response to the above requirements, someone has developed an electrical connector with a floating insulator. Assuming that the front end is a plug-in terminal, the electrical connector includes a housing, one in front of the other in the housing. The latter is equipped with a floating insulator and a fixed insulator. The floating insulator is fixedly equipped with a transfer contact piece and can move in the front and rear directions in the housing. The fixed insulator is fixedly equipped with a fixed contact piece corresponding to the transfer contact piece one by one. The outer peripheral surface of the floating insulator is sealed and fitted with the inner wall of the housing, and the outer peripheral surface of the transfer contact is sealed and fitted with the floating insulator. When the electrical connector is separated from the mating connector, the floating insulator is separated from the fixed insulator And drive the transfer contact to separate from the fixed contact (under the action of the corresponding elastic member or under the pull-out force of the adapter connector), at this time, since the transfer contact is separated from the fixed contact and electrically connected The front interface of the device is sealed by the floating insulator with the transfer contact, so even if the transfer contacts are short-circuited with each other, it will not cause a short circuit between the fixed contacts, and thus will not cause electrical contact. Short-circuit damage to electrical equipment, etc. connected to the connector.

However, most of the above-mentioned transfer contacts use double-ended sockets or double-ended pins for transfer. In some special occasions, some special standard contacts (such as 12# coaxial contacts (M39029/ 102-558 and M39029/103-559), 8# double coaxial (M39059/90-529 and M39029/91-530), etc.), due to the structural limitations of standard contacts, most of them cannot adopt the transfer structure, and the sealing There are great difficulties in the design of the structure. Therefore, the current electrical connectors using the above-mentioned standard contacts all have the problem of poor self-protection and sealing performance after separation.

Contents of the invention

The purpose of the present invention is to provide a separation protection type electrical connector to solve the problem of poor self-protection and sealing performance after separation of the existing electrical connectors using standard contacts.

In order to solve the above problems, the separation protection type electrical connector of the present invention adopts the following technical solutions: separation protection type electrical connector, the electrical connector uses the front end as the insertion end, includes a housing and is assembled in the housing one by one The floating insulator and the fixed insulator, the fixed insulator is fixedly equipped with standard contacts, the floating insulator is provided with one-to-one corresponding to the standard contacts, and the front and rear through insertion holes, the standard contacts are assembled on the fixed insulator through the contact mounting sleeve and block the two ends of the contact installation sleeve, the contact installation sleeve extends into the insertion hole of the floating insulator and cooperates with the front and rear sliding seals of the floating insulator to prevent separation.

An annular slot is provided on the inner wall of the contact installation sleeve, and the standard contact is fixedly assembled in the contact installation sleeve through a fixed coil provided in the annular slot.

The front part of the inner hole of the contact mounting sleeve is fitted with the standard contact radially in a limited manner.

The fixed insulator is a split structure, which includes a front insulator and a rear insulator arranged in tandem. The contact mounting sleeve is provided with a protruding ring protruding to the periphery, and the protruding ring is pressed between the front and rear. Between the insulators, the contact mounting sleeve is assembled on the fixed insulator through the cooperation of the protruding ring with the front and rear insulators.

The contact mounting sleeve is slidingly and sealingly matched with the floating insulator through the sealing ring.

Because the standard contacts of the separation protection type electrical connector of the present invention are assembled on the fixed insulator through the contact mounting sleeve, and the two ends of the contact mounting sleeve are blocked by the standard contact, the contact mounting sleeve extends into the floating insulator In the insertion hole and with the sliding seal of the front and rear of the floating insulator to prevent disengagement; therefore, during use, when the electrical connector is separated from the mating connector, the floating insulator moves forward and covers the standard contacts, and this At the same time, the contact mounting sleeve separates the insertion hole of the floating insulator from the front and back, and the standard contact separates the inner hole of the contact mounting sleeve from the front and back, thereby realizing the sealing of the space behind the floating insulator and effectively preventing the standard contact from floating. A short circuit occurs in the space between the insulator and the fixed insulator. It can be seen that the separation protective electrical connector of the present invention solves the problem of poor self-protection and sealing performance after separation of the existing electrical connectors using standard contacts.

Furthermore, an annular slot is provided on the inner wall surface of the contact installation sleeve, and the standard contact is fixedly assembled in the contact installation sleeve through the fixed coil provided in the annular slot, so that it can be conveniently realized The fixed spring coil and assembly tooling in the prior art reduce the cost; the front part of the inner hole of the contact installation sleeve is matched with the radial limit of the standard contact to prevent the standard contact from swinging; the convex ring, press-fit The fixing method can simplify the structure of the electrical connector and further reduce the cost without adding other components; the sealing ring can be used as the sealing member to facilitate replacement.

Description of drawings

FIG. 1 is a schematic structural view of an embodiment of a separation-proof electrical connector of the present invention.

Detailed ways

An embodiment of the separation protection type electrical connector of the present invention, as shown in Figure 1, the electrical connector uses the front end as the plug-in end, and includes a housing (not shown in the figure), in which there are one front and one rear It is equipped with a floating insulator 11 and a fixed insulator. The floating insulator is in the form of a separate body and can float back and forth in the housing. It is sealed with the housing through a sealing ring (not shown in the figure), and the fixed insulator is fixedly assembled in the housing. Among them, in this embodiment, the fixed insulator adopts a split structure, including a front insulator 12 and a rear insulator 13 arranged one after the other. In addition, the fixed insulator is fixedly equipped with a standard contact piece 14, and the floating insulator 11 is provided with a plug connector. The hole 111, the insertion hole 111 is a through hole that corresponds to the standard contact piece 14 and runs through the front and back. The standard contact piece 14 is assembled on the fixed insulator through the contact piece installation sleeve 15. In this embodiment, the contact piece installation sleeve 15 There is a protruding ring protruding to the periphery at the rear end, the protruding ring is pressed between the front and rear insulators, and the contact mounting sleeve 15 is assembled on the fixed insulator through the cooperation of the protruding ring and the front and rear insulators And it is fixedly matched with the fixed insulator. In addition, the inner wall surface of the contact installation sleeve 15 is provided with an annular slot, and the standard contact 14 is fixed by the fixed coil 16 (the prior art) set in the annular slot. Assembled in the contact mounting sleeve 15, at the same time, the front part of the inner hole of the contact mounting sleeve 15 is fitted with the standard contact 14 in a radial limit, thereby effectively preventing the standard contact 14 from swinging, and the standard contact The front outer wall surface of the contact piece is sealed with the inner wall surface of the contact installation sleeve and blocks the two ends of the inner hole of the contact installation sleeve. The front end of the contact installation sleeve 15 extends into the insertion hole of the floating insulator 11 And it cooperates with the front and rear sliding seals of the floating insulator 11 to prevent detachment. In this embodiment, the sealing fit between the contact mounting sleeve 15 and the floating insulator 11 is realized by the sealing ring 17 arranged on the wall of the socket hole of the floating insulator 11. Yes, when the floating insulator 11 moves back and forth in the housing, the front end of the contact mounting sleeve 15 is always in sealing fit with the floating insulator 11 .

In other embodiments of the separation protection electrical connector of the present invention, the contact mounting sleeve can also be made of insulating material, in this case, it can be directly molded on the standard contact; the contact mounting sleeve can also It can be fixedly matched with the fixed insulator by means of bonding or the like.

Claims (5)

1. Separate protective electrical connector, the electrical connector uses the front end as the plug-in terminal, including a housing, a floating insulator and a fixed insulator assembled in the housing one after the other, and the fixed insulator is fixedly equipped with standard contacts. The floating insulator is provided with a one-to-one corresponding to the standard contact piece, and the front and rear through insertion holes are characterized in that the standard contact piece is fitted on the fixed insulator through the contact piece mounting sleeve and blocks both ends of the contact piece mounting sleeve. The contact mounting sleeve protrudes into the insertion hole of the floating insulator and cooperates with the front and rear sliding seals of the floating insulator to prevent detachment. 2. The separation protection type electrical connector according to claim 1, characterized in that, the inner wall surface of the contact mounting sleeve is provided with an annular slot, and the standard contact is fixed by a fixed coil provided in the annular slot. Assembled in a contact mounting sleeve. 3 . The separation protection electrical connector according to claim 2 , wherein the front part of the inner hole of the contact mounting sleeve is radially limited in fit with the standard contact. 4 . 4. The separation protection electrical connector according to claim 1, characterized in that, the fixed insulator is a split structure, which includes a front insulator and a rear insulator arranged in tandem, and the contact is installed on the sleeve A protruding ring protruding to the periphery is provided, and the protruding ring is pressed between the front and rear insulators, and the contact mounting sleeve is assembled on the fixed insulator through the cooperation of the protruding ring and the front and rear insulators. 5. The separation protection electrical connector according to any one of claims 1-4, characterized in that the contact mounting sleeve is in sliding and sealing engagement with the floating insulator through a sealing ring.