CN102819073B - Contact element module and connector using same - Google Patents

Abstract

The invention relates to a contact module, which includes an insulator and an optical contact assembled on the insulator. The optical contact includes ceramic pins and tail pipes that are coaxially plugged together in front and back. The ceramic pins The outer sleeve of the tail pipe is provided with a ceramic sleeve, and the outer movable anti-falling sleeve of the tail pipe is provided with a contact housing. The corresponding through hole, the ceramic sleeve is located in the corresponding through hole, and the front end is limitedly matched with the step surface on the wall of the corresponding through hole; because the contact module of the present invention is detachably connected to the front end of the insulator. In the front insulating pressing plate, the ceramic bushing is located in the through hole of the front insulating pressing plate, so when the ceramic bushing is damaged, the front insulating pressing plate can be disassembled, thereby easily replacing the damaged ceramic bushing, which solves the problem of existing The problem that the ceramic sleeve of the optical contact in the optical fiber connector and the photoelectric hybrid connector cannot be replaced. The invention also relates to a connector using the contact module.

Description

A contact module and a connector using the contact module

technical field

The invention relates to the technical field of optical and electrical connections, in particular to a contact module and a connector using the contact module.

Background technique

There are many types of optical connectors and photoelectric hybrid connectors currently on the market, but in terms of their structure, they all include a housing and a contact module fixedly assembled in the housing. The contact module includes an insulator . An optical contact piece assembled on the insulator (the mixed connector contact piece module also includes an electrical contact piece), the optical contact piece includes a ceramic pin and a tail pipe that are coaxially inserted together one after the other, The ceramic pin is covered with a ceramic sleeve, and the coaxial movable anti-falling sleeve on the tail pipe is provided with a contact shell, and the contact shell is fixedly assembled in the insulator, and the front end of the tail pipe has a flange The disc is equipped with a buffer spring between the rear side of the flange and the stepped surface on the inner wall of the contact housing. The above-mentioned contact module has been widely used in optical fiber connectors and photoelectric hybrid connectors, but the ceramic sleeve is a vulnerable part in the optical contact, and the ceramic sleeve of the above-mentioned optical contact is It is fixedly assembled on the insulator, so it cannot be replaced. Therefore, once the ceramic sleeve is damaged, it will directly lead to the scrapping of the entire contact module and even the connector.

Contents of the invention

The purpose of the present invention is to provide a contact module to solve the problem that the ceramic sleeve of the optical contact in the existing optical fiber connector and photoelectric hybrid connector cannot be replaced.

Meanwhile, the object of the present invention is to provide a connector using the above-mentioned contact module.

In order to solve the above problems, the contact module of the present invention adopts the following technical solution: a contact module includes an insulator and an optical contact assembled on the insulator, and the optical contact includes a front-to-back coaxial insert The ceramic pin and the tail pipe together, the outer part of the ceramic pin is provided with a ceramic bushing, the outer movable anti-falling sleeve of the tail pipe is provided with a contact housing, and the front end of the insulator is detachable and fixed. There is a front insulating pressing plate, and the front insulating pressing plate is provided with through holes corresponding to the optical contacts one by one. The ceramic sleeve is located in the corresponding through hole and passes through the front end and the corresponding through hole wall. Step face limit fit.

The rear end of the insulator is fixedly connected with a rear insulating pressure plate, and the rear insulating pressure plate is provided with an inlet hole corresponding to the optical contacts one by one. The rear end of the body and the positioning claw that limit the cooperation with the contact housing.

The rear end of the rear insulation pressing plate is fixedly connected with a sealing wire body.

The outer periphery of the rear insulating pressing plate is covered with a sealing ring for sealingly matching with the corresponding connector housing.

Electrical contacts are mounted on the insulator, and the axis of each electrical contact is parallel to the axis of the optical contact.

The connector of the present invention adopts the following technical solution: a connector, including a connector housing and a contact module fixedly assembled in the connector housing, the contact module includes an insulator and an optical contact, the optical The contact piece includes a ceramic pin and a tail pipe that are coaxially plugged together in front and back. The ceramic pin is covered with a ceramic sleeve, and the outer movable sleeve of the tail pipe is provided with a contact shell. The front end of the insulator is detachably connected with a front insulating pressure plate, and the front insulating pressure plate is provided with through holes corresponding to the optical contacts one by one, and the ceramic sleeve is located in the corresponding through hole and passes through the front end and The step surface on the wall of the corresponding through hole is limited fit.

The rear end of the insulator is fixedly connected with a rear insulating pressure plate, and the rear insulating pressure plate is provided with inlet holes corresponding to the optical contacts one by one. The rear end of the housing is limitedly matched with the positioning claw of the contact housing.

The rear end of the rear insulation pressing plate is fixedly connected with a sealing wire body.

The contact module is sealingly matched with the connector housing through a sealing ring arranged on the outer periphery of the insulating pressing plate thereafter.

Electrical contacts are mounted on the insulator, and the axis of each electrical contact is parallel to the axis of the optical contact.

Since the contact module of the present invention is detachably connected with the front insulating pressure plate at the front end of its insulator, the ceramic bushing of the optical contact is located in the through hole on the front insulating pressure plate, so when the ceramic bushing is damaged , the front insulating pressure plate can be disassembled, so that the damaged ceramic sleeve can be replaced conveniently, which solves the problem that the ceramic sleeve of the optical contact in the existing optical fiber connector and photoelectric hybrid connector cannot be replaced.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the contact module of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a schematic structural view of Embodiment 1 of the connector of the present invention;

Fig. 4 is a schematic structural diagram of the contact module in Fig. 3;

Fig. 5 is a left side view of Fig. 4 .

Detailed ways

Embodiment 1 of the contact module of the present invention, as shown in Figure 1-2, the contact module is a photoelectric hybrid contact module, which has an insulator 1 and a front insulating pressure plate 2 and a rear insulating The pressure plate 3 and the insulator 1 are equipped with optical contacts and electrical contacts 4. The optical contacts include ceramic pins 5 and tail pipes 6 that are plugged together one after the other. The ceramic pins are covered with ceramic sleeves. The tail pipe 6 is provided with a contact housing 7 movable in the axial direction. The contact housing 7 is located in the assembly hole on the insulator 1 and passes through its front end and the inversion edge stop limit set at the front end of the corresponding assembly hole. The rear insulating pressure plate 3 is bonded to the rear end of the insulator 1, and the rear insulating pressure plate 3 is provided with an inlet hole, which corresponds to the optical contact piece and the electrical contact piece one by one, and the contact of each optical contact piece The housings 7 of the contact pieces all extend into the corresponding wire inlet holes, and the outer wall surface of the housing 7 of the contact pieces is provided with a stepped surface facing the rear at the rear end, and the wire inlet holes on the rear insulating pressure plate 3 are large in front and small in back. The step hole and each inlet hole are provided with positioning claws 8, and the rear end of the positioning claws 8 is provided with a step surface corresponding to the step surface on the outer wall surface of the contact housing 7, so that the optical contact The rear of the tail pipe 6 is provided with an everted flange at the front end, and the rear side of the flange is in contact with the contact housing 7 to prevent the contact housing 7 from moving in the axial direction. Buffer springs 9 are installed between the stepped surfaces on the inner wall surface of the component housing 7; the front insulating pressure plate 2 is fixedly assembled on the front end of the insulator 1 through bolts 10 and corresponding nuts 11; The through holes corresponding to the contact parts one by one, the ceramic bushings of each optical contact part are C-shaped tubes and are all located in the corresponding through holes on the front insulating pressure plate 2, and the hole walls of each through hole are equipped with facing For the stepped surface at the rear, the front ends of the ceramic bushings respectively cooperate with the stepped surface on the wall of the corresponding through hole; the rear end of the ceramic pin 5 is coaxially inserted into the front end of the corresponding tail pipe 6 and tightened through it. The force is fixedly matched with the tail pipe 6, and the rear end of the ceramic pin 5 is further limitedly matched with the stepped hole on the inner wall surface of the tail pipe 6. When the ceramic sleeve needs to be replaced, the ceramic sleeve 5 can be removed from the corresponding ceramic pin. Pull it up and replace it; the rear end of the rear insulating pressure plate 3 is fixedly connected with a sealing wire body 12, which is a prior art and can be used to prevent moisture from entering the contact module from the tail end of the contact module. 3. A sealing ring 13 is sheathed in the circumferential direction, and the sealing ring 13 is used for sealing and matching with the corresponding connector housing, so as to prevent water or moisture from entering the contact module from the joint between the insulator and the rear insulating pressure plate.

In other embodiments of the contact module, the electrical contact described in Embodiment 1 of the contact module can also be omitted, and in this case the contact module is an optical contact module; the front insulating pressure plate can also be It is detachably connected to the insulator by screws.

Embodiment 1 of the contact module of the present invention, as shown in Figures 3-5, consists of a connector housing 101 and a contact module 102 fixedly assembled in the connector housing 101. The contact module is equipped with an insulator 51 and a front insulating press plate 52 and a rear insulating press plate 53 respectively arranged at the front and rear ends of the insulator 51. The insulator 51 is equipped with an optical contact and an electrical contact 54. The optical contacts include a front and a rear insert The ceramic pin 55 and the tail pipe 56 assembled together are connected. The outer part of the ceramic pin is covered with a ceramic sleeve, and the tail pipe 56 is provided with a contact housing 57 movable in the axial direction. The contact housing 57 is located on the insulator 51 in the assembly hole and through its front end and the inversion edge stop limit located at the front end of the corresponding assembly hole, the rear insulating pressure plate 53 is bonded to the rear end of the insulator 51, and the rear insulating pressure plate 53 is provided with an inlet hole , the inlet holes correspond to the optical contacts and electrical contacts one by one, the contact housing 57 of each optical contact extends into the corresponding inlet hole, and the outer wall surface of the contact housing 57 is on the rear end There is a stepped surface facing the rear, and the inlet holes on the rear insulating pressure plate 53 are stepped holes with a large front and a small size at the back, and positioning claws 58 are arranged in each inlet hole, and the rear end of the positioning claws 58 is provided with a contact The stepped surface on the outer wall surface of the component housing 57 corresponds to the stepped surface of the stop fit, so that it can limitly cooperate with each contact component housing 57 at the rear of the optical contact to prevent the contact component housing 57 from moving in the axial direction, and the tail The front end of the tube 56 is provided with an everted flange, and a buffer spring 59 is installed between the rear side of the flange and the stepped surface on the inner wall surface of the contact housing 57; 60 and the corresponding nut 61 are fixedly assembled on the front end of the insulator 51, and the front insulating pressure plate 52 is provided with through holes corresponding to each optical contact one by one, and the ceramic bushings of each optical contact are C-shaped tubes and are located in the front In the corresponding through-holes on the insulating pressure plate 52, the walls of each through-hole are provided with step surfaces facing the rear, and the front ends of the ceramic sleeves respectively cooperate with the step surfaces on the walls of the corresponding through-holes. The rear end of the ceramic pin 55 is coaxially inserted in the front end of the corresponding tail pipe 56 and is fixedly matched with the tail pipe 56 by its tension force, and the rear end of the ceramic pin 55 is further connected with the step hole on the inner wall surface of the tail pipe 56. Limit fit, when the ceramic bushing needs to be replaced, the ceramic bushing can be pulled out from the corresponding ceramic pin and replaced; the rear end of the rear insulating pressure plate 53 is fixedly connected with a sealing line body 62, and the sealing line body 62 is The existing technology can be used to prevent moisture from entering the contact module from the tail end of the contact module. The rear insulating pressure plate 53 is sleeved with a sealing ring 63 in the circumferential direction. The sealing ring 63 is used for sealing and matching with the connector housing 101, which can prevent Water or moisture enters the contact module 102 from the joint between the insulator and the rear insulating press plate.

In other embodiments of the connector, the electrical contacts of the contact module described in Embodiment 1 of the connector can also be omitted. In this case, the contact module is an optical contact module; the front insulation The pressing plate can also be detachably connected to the insulator by screws.

Claims (8)

1. a contact module, comprise insulator and be assemblied in the light contact on described insulator, described smooth contact comprises one in front and one in back coaxially plug-in ceramic contact pin and tail pipe, the outer cover of described ceramic contact pin is provided with porcelain bushing, the external activity Anti-slip cover of described tail pipe is provided with contact housing, it is characterized in that, the front end of described insulator is removable is fixed with front insulating press boards, described front insulating press boards is provided with and described smooth contact through hole one to one, described porcelain bushing is arranged in corresponding through hole and by front end and the spacing cooperation of step surface be located on corresponding through hole hole wall, the rear end of described insulator is fixed with rear insulating press boards, described rear insulating press boards is provided with and described smooth contact entrance hole one to one, the rear end locating detent that coordinate spacing with contact housing for the contact housing in correspondence is provided with in described entrance hole, the rear end of locating detent is provided with the step surface coordinated with the corresponding block of step surface on contact housing exterior walls face.

2. contact module according to claim 1, is characterized in that, the rear end of described rear insulating press boards is fixed with grommet.

3. contact module according to claim 1, is characterized in that, described rear insulating press boards is arranged with the sealing ring for being sealed and matched with corresponding connector shell in periphery.

4. contact module according to claim 1, is characterized in that, described insulator is equipped with electric contact piece, the axis of each electric contact piece and the axis of described smooth contact parallel to each other.

5. a connector, comprise connector shell and be fixedly assemblied in the contact module in described connector shell, described contact module comprises insulator and light contact, described smooth contact comprises one in front and one in back coaxially plug-in ceramic contact pin and tail pipe, the outer cover of described ceramic contact pin is provided with porcelain bushing, the external activity of described tail pipe is arranged with contact housing, it is characterized in that, the front end of described insulator is removable is fixed with front insulating press boards, described front insulating press boards is provided with and described smooth contact through hole one to one, described porcelain bushing is arranged in corresponding through hole and by front end and the spacing cooperation of step surface be located on corresponding through hole hole wall, the rear end of described insulator is fixed with rear insulating press boards, described rear insulating press boards is provided with and described smooth contact entrance hole one to one, the rear end locating detent that coordinate spacing with contact housing for the contact housing in correspondence is provided with in described entrance hole, the rear end of locating detent is provided with the step surface of joining with the corresponding block of step surface on contact housing exterior walls face.

6. connector according to claim 5, is characterized in that, the rear end of described rear insulating press boards is fixed with grommet.

7. connector according to claim 5, is characterized in that, described contact module is sealed and matched by the sealing ring and connector shell being located at insulating press boards periphery thereafter.

8. connector according to claim 5, is characterized in that, described insulator is equipped with electric contact piece, the axis of each electric contact piece and the axis of described smooth contact parallel to each other.