Detachable connector and connector assembly

Abstract

The invention relates to a detachable connector and a connector assembly, the connector comprises a shell and a transmission module detachably assembled in the shell, the transmission module comprises an insulation assembly formed by connecting an insulator and an insulation pressing plate end to end and a plurality of contact pieces assembled in the insulation assembly; a fixing boss is arranged on the outer side of a cantilever on the tail portion of the insulation pressing plate, a boss is arranged on the periphery of the insulator, and the insulation assembly is limited forwards in the shell in the axial direction through matching of the boss on the periphery of the insulator at the front end of the insulation assembly and the step face in the shell. And the fixed boss on the insulating pressing plate at the rear end is matched with the locking groove in the shell to realize axial backward stopping and limiting in the shell. When the module needs to be replaced, a user only needs to align a dismounting tool to a dismounting surface and apply force to the inner side, the insulator pressing plate is taken out, mounting and dismounting are convenient, and maintenance and replacement are convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of connectors, and particularly relates to a detachable connector. Background Art

[0002] To ensure the fixed stability of the pins and sockets inside the connector, existing connectors fix the pins and sockets by potting. However, this fixing method makes it extremely difficult or even impossible to repair when there is a damaged pin or socket inside the connector, resulting in the overall scrapping of the connector, a great waste of resources, or affecting the project progress. Summary of the Invention

[0003] To solve the above problems, the present invention provides a detachable connector, which realizes the fixed assembly of the insulating component and the contact member in the housing through a limiting structure, and can realize the removal of the insulating component and the contact member through a removal tool to meet the maintenance requirements.

[0004] The object of the present invention and the technical problems it solves are achieved by the following technical solutions. A detachable connector according to the present invention includes a housing 1 and a transmission module detachably assembled in the housing. The transmission module includes an insulating component composed of an insulator 3 and an insulating pressing plate 4 connected end to end, and a plurality of contact members 2 fixedly assembled in the insulating component. A fixing boss 8 is provided outside the cantilever 42 at the tail of the insulating pressing plate 4, and a boss 32 is provided on the outer periphery of the insulator 3. The insulating component realizes axial forward limiting in the housing 1 through the cooperation of the boss 32 on the outer periphery of the front-end insulator 3 and the stepped surface 11 in the housing 1, and realizes axial backward blocking and limiting in the housing 1 through the cooperation of the fixing boss 8 on the rear-end insulating pressing plate 4 and the locking groove 9 in the housing 1.

[0005] The object of the present invention and the technical problems it solves can also be further realized by the following technical measures.

[0006] In the aforementioned detachable connector, two cantilevers 42 are oppositely arranged on both sides of the tail of the insulating pressing plate 4, and a removal surface 7 is provided in the middle of the outer sides of the two cantilevers 42. This removal surface is used to enable the removal tool to simultaneously apply a force to the two cantilevers 42 to make them swing inward, so that the fixing boss 8 is disengaged from the locking groove 9 to unlock.

[0007] In the aforementioned detachable connector, the removal surface 7 is an inclined surface that gradually extends from the front to the direction of the other cantilever 42.

[0008] In the aforementioned detachable connector, an avoidance groove 10 for facilitating the application of force by the removal device is further provided in the middle of the cantilever 42. The avoidance groove 10 extends axially along the insulating pressing plate 4 to the position where it is connected to the removal surface 7.

[0009] The aforementioned detachable connector, a long groove is provided at the tail of the housing 1 for inserting a removal tool and applying force to the removal surface 7.

[0010] The aforementioned detachable connector, there is an overlap in the radial direction projection between the removal surface 7 and the fixing boss 8.

[0011] The aforementioned detachable connector, the fixing boss 8 is a wedge-shaped boss with a gradually increasing thickness from front to back.

[0012] The aforementioned detachable connector, an annular boss 21 is provided on the outer periphery of the contact 2, and an annular groove adapted to the annular boss 21 is provided in the hole for the contact 2 to pass through in the insulator 3 or the insulating pressure plate 4. The front end face of the annular boss 21 is axially limited by the insulator 3, and the rear end face is axially limited by the insulator 4.

[0013] The aforementioned detachable connector, the contact 2 is a stranded pin contact.

[0014] The aforementioned detachable connector, the hole on the insulating pressure plate 4 adapted to the contact 2 located at the edge position is a through hole open on one side.

[0015] To achieve the object of the present invention and solve its technical problems, the following technical solutions are also adopted. A connector assembly proposed according to the present invention includes the above-mentioned connector and a tail attachment housing. The housing 1 is a conductive housing. The tail attachment housing is fixed to the tail of the housing 1, and a shielding spring piece 6 for elastically contacting the outer peripheral surface of the housing 1 to achieve shielding conduction is provided on the inner wall of the tail attachment housing.

[0016] The object of the present invention and the solution to its technical problems can also be further achieved by the following technical measures.

[0017] The aforementioned connector assembly, the tail attachment housing is formed by two sub-housings 5 buckling with each other, and at least one shielding spring piece 6 is provided on the inner side of each sub-housing 5.

[0018] The aforementioned connector assembly, at least one shielding pressing rib 52 extending along the length direction of the housing 1 is further provided on the inner wall of the tail attachment housing.

[0019] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solutions, the present invention can achieve quite a high level of technical progressiveness and practicality, and has wide industrial utilization value. It has at least the following advantages:

[0020] The transmission module of the present invention is designed with a split structure and consists of an insulator, an insulator pressing plate, and a pin contact. The contact is fixed by clamping its outer circular boss between the insulator and the pressing plate, and the transmission module is installed in the groove of the corresponding housing through the limit fixing boss on the insulator pressing plate. When the module needs to be replaced, just align the removal tool with the removal surface and apply force inward to take out the insulator pressing plate, which is convenient for installation, removal, maintenance, and replacement.

[0021] In the connector assembly of the present invention, an elastic connection is achieved by adding a shielding spring piece between the housing and the tail attachment housing to ensure reliable shielding conduction between the housing and the tail attachment housing. At the same time, by adding a shielding pressing rib structure in the tail attachment housing, the connection between the tail attachment housing and the wire shield is effectively realized, which can significantly improve the electrical conductivity between the overall outer shells of the product and the overall shielding performance of the product. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of an existing connector;

[0023] Figure 2 It is a schematic overall structural diagram of the detachable connector of the present invention;

[0024] Figure 3 It is a cross-sectional view of the detachable connector of the present invention;

[0025] Figure 4 It is a partial exploded view of the detachable connector of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the insulating pressing plate of the detachable connector of the present invention;

[0027] Figure 6 It is a schematic diagram of the force application for removing the insulating pressing plate of the detachable connector of the present invention;

[0028] Figure 7 It is a schematic diagram of removing the insulating pressing plate of the detachable connector of the present invention;

[0029] Figure 8 It is a schematic diagram of the tail attachment of the detachable connector assembly of the present invention;

[0030] Figure 9 It is a schematic diagram of the elastic piece on the tail attachment of the detachable connector assembly of the present invention;

[0031] Figure 10 It is a schematic diagram of the partially assembled state of the tail attachment of the detachable connector assembly of the present invention.

[0032]

Description of the Main Element Symbols

[0033] 101: Metal housing

[0034] 201: Jack

[0035] 301: Glue injection location

[0036] 1: Housing

[0037] 11: Step surface

[0038] 2: Contact

[0039] 21: Annular boss

[0040] 3: Insulator

[0041] 31: Contact mounting hole

[0042] 31: Boss

[0043] 4: Insulating pressure plate

[0044] 41: Contact positioning hole

[0045] 42: Cantilever

[0046] 5: Sub-housing

[0047] 6: Shielding spring piece

[0048] 7: Removal surface

[0049] 8: Fixing boss

[0050] 9: Locking groove

[0051] 10: Avoidance groove Detailed implementation manners

[0052] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the detachable connector proposed according to the present invention as follows.

[0053] Please refer to Figure 2-7 , which is a schematic diagram of the structures of various parts of the detachable connector of the present invention. In this embodiment, the connector is a micro-rectangular connector, which includes a housing 1, a contact 2, an insulator 3 and an insulating pressure plate 4. Among them, the insulator 3 is assembled in the front-end cavity of the housing 1 and is axially forwardly blocked and limited by the housing 1. The insulating pressure plate 4 is assembled in the rear-end cavity of the housing 1. The insulating pressure plate 4 is locked and fixed in the housing 1 through the cooperation of the fixing boss 8 on its outer periphery and the locking groove 9 in the housing 1. And the front end of the insulating pressure plate 4 also axially blocks and limits the tail of the insulator 3 to prevent the insulator 3 from moving backward axially.

[0054] The front end of the contact member 2 is located in the contact member mounting hole 31 within the insulator 3, and the rear end extends out of the contact member positioning hole 41 on the insulating pressure plate 4. Moreover, a ring-shaped boss 21 is provided on the outer periphery of the contact member 2. The contact member 2 is circumferentially limited by mating with the annular groove in either the insulator 3 or the insulating pressure plate 4 through this ring-shaped boss 22. Also, the front and rear end faces of this ring-shaped boss 22 are coaxially limited by the insulator 3 and the insulating pressure plate 4, thereby achieving axial and circumferential positioning of the contact member 2 within the insulating structure composed of the insulator 3 and the insulating pressure plate 4. In this embodiment, a ring groove adapted to the ring-shaped boss 21 is formed at the tail of the contact mounting hole 31 within the insulator 3, and the ring-shaped boss 21 is located within this ring groove. This ring groove has a structure that is open at the rear side. The ring-shaped boss 21 enters from the rear side of this ring groove and is blocked and limited by the front wall body of this ring groove, while the bottom of this ring groove circumferentially limits the ring-shaped boss 21. In this embodiment, the axial extension length of the ring-shaped boss 21 is consistent with the length of the ring groove, such that the rear end face of the ring-shaped boss 21 is flush with the rear end face of the insulator 3, and the front end face of the insulating pressure plate 4 presses against the rear end face of the insulator 3 and the rear end face of the ring-shaped boss 21.

[0055] In this embodiment, the housing 1 has a stepped cavity that is smaller at the front and larger at the rear. This stepped cavity forms a rearward stepped surface 11 due to the change in the inner diameter size. The housing 1 axially and forwardly blocks and limits the insulator 3 through the stepped surface 11. Specifically, a boss 32 is provided on the outer periphery of the rear end of the insulator 3, and the front end face of this boss 32 presses against the stepped surface 11 within the housing 1 to achieve axially forward blocking and limiting relative to the housing 1.

[0056] On both sides of the tail of the insulating pressure plate 4, there are oppositely arranged cantilevers 42. These cantilevers 42 extend axially along the insulating pressure plate 4, and these cantilevers 42 can swing inward (towards the side of the other cantilever 42) under the extrusion of an external force. The fixed boss 8 is provided outside these cantilevers 4, and its rear end face is blocked and limited by the rear wall body of the locking groove 9 within the housing 1, thereby achieving axial limitation of the insulating pressure plate 4 within the housing 1.

[0057] In the embodiment of the present invention, the fixed boss 8 is a wedge-shaped boss whose thickness gradually increases from front to rear, and the rear end face of this wedge-shaped boss is a plane perpendicular to the axis of the housing 1. The locking groove 9 is also a wedge-shaped groove adapted to this fixed boss 9. So, when assembling the insulating pressure plate 4, the fixed boss 8 can gradually squeeze the cantilever 42 inward and enter the locking groove 9, and cooperate with the locking groove 9 to achieve reliable fixing and locking within the housing 1. Preferably, the outer side face of the front end of the fixed boss 8 is an inclined plane that gradually rises from front to rear, the outer side face of the rear end is a plane parallel to the cantilever, the rear end face is a plane perpendicular to the cantilever, and the two opposite side faces are trapezoidal.

[0058] In an embodiment of the present invention, two fixing bosses 9 are distributed at intervals along the width direction of each outer side of the cantilever 42. When the extension length of the housing 1 in the width direction increases, the number of the fixing bosses 9 can be increased.

[0059] In an embodiment of the present invention, in order to facilitate the removal and installation of the insulating pressing plate 4, a removal surface 7 is provided in the middle of the outer sides of the two cantilevers 42. The removal surface 7 is an inclined surface that gradually extends in the direction close to the other cantilever 42 from the front to the back. The setting of the removal surface 7 facilitates the removal tool to enter the housing 1 and apply force inward through the two removal surfaces 7, so that the two cantilevers 42 swing inward, and then the fixing boss 8 is disengaged from the locking groove 9. At this time, by pulling the removal tool outward, the insulating pressing plate 4 can be taken out for the maintenance and replacement of the contact or other components.

[0060] In an embodiment of the present invention, a relief groove 10 for facilitating the operation of the removal tool is formed by the inward depression in the middle of the cantilever 42. The removal surface 7 extends from the front to the back to the bottom of the relief groove 10, and the bottom of the relief groove 10 is located between the end face of the tail of the cantilever 42 and the end face of the tail of the fixing boss 8. Thus, there is an overlapping part between the projection of the removal surface 7 of the cantilever 42 and the fixing boss 8 in the radial direction, so that the axial position of the removal force application is near the fixing boss 8, ensuring that the fixing boss 8 can be disengaged from the locking groove 9. At the same time, the removal force during removal can also be reduced. At the same time, the setting of the relief groove 10 can also provide sufficient space for the removal operation of the removal tool, facilitating the insertion and force application of the removal tool.

[0061] In other embodiments of the present invention, the relief groove 10 in the middle of the cantilever 42 can be cancelled. At this time, the removal surface 7 can be an inclined surface that gradually extends inward from the front to the back, a groove extending along the axial direction of the housing, or a plane extending along the axial direction of the housing. When the removal surface 7 is a plane extending along the axial direction of the housing, a long groove extending along the axial direction is provided on the housing 1 to facilitate the insertion of the removal tool and the application of force to the removal surface 7.

[0062] In an embodiment of the present invention, there are 4 contact members 2. The contact positioning holes 41 on the insulating pressing plate 4 for positioning the rear ends of the respective contact members 2 are through holes with one side open. Thus, the contact members 2 can be connected to the tail wires and then inserted into the insulating pressing plate 4. In other embodiments of the present invention, the contact positioning holes 41 can also be a circumferentially closed structure. At this time, the insulating pressing plate 4 needs to be sleeved on the wire first, and then the tail wires of the contact members 2 are connected.

[0063] When the number of the contact members 2 of the present invention is more than 4, all the contact positioning holes 41 can be set as circumferentially closed through hole structures, or the contact positioning holes 41 at the edges can be designed as through holes with one side open, and the other contact positioning holes 41 are circumferentially closed structures.

[0064] In an embodiment of the present invention, the contact member 2 is a stranded needle contact member, but is not limited thereto.

[0065] In an embodiment of the present invention, the connector is a high-speed connector, and the housing 1 is a conductive housing, but is not limited thereto.

[0066] In an embodiment of the present invention, the insulator 3 and the insulating pressure plate 4 are joined end to end to form an insulating assembly. At this time, the positioning of the contact member 2 by the insulating assembly is a preliminary positioning. Only when the transmission module composed of the contact member 2 and the insulating assembly is installed in the housing 1 can the contact member 2 be reliably positioned.

[0067] In other embodiments of the present invention, the insulator 3 and the insulating pressure plate 4 can also be connected and fixed through other connection structures. The positioning of the contact member 2 by the insulating assembly is stable and reliable, and the transmission module composed of the contact member 2 and the insulating assembly has a stable and reliable structure before being installed in the housing 1.

[0068] Please refer to Figure 8-10 , the present invention also provides a connector assembly, which includes the above-mentioned tail attachment housing connected and fixed to the tail of the connector. Wherein, an installation panel 13 for fixing the connector is provided on the outer periphery of the housing 1, and fixing through holes 14 for the fixing member to pass through are oppositely provided on the installation panel 13. The tail attachment housing is a two-piece snap-fit structure, which is formed by snap-fitting two symmetrical sub-housings 5, and the two sub-housings 5 forming the tail attachment housing are fixed into one body by screws, and the two sub-housings 5 together form a through hole for the connecting member for connecting and fixing the tail attachment housing 5 and the installation panel 13 to pass through. In this embodiment, the connecting member is a connecting bolt. Both ends of the two sub-housings 5 have a semi-circular groove 51 extending along the axial direction of the connector. When the two sub-housings 5 are snap-fitted to form a complete tail attachment housing, the two semi-circular grooves 51 are snap-fitted to form a through hole for the bolt to pass through, and this through hole corresponds to the fixing through hole 14 on the installation panel.

[0069] On the inner side of the tail attachment housing, at least one shielding spring piece 6 is further provided on the surface that is adaptively in contact with the outer peripheral surface of the housing 1. The tail attachment housing realizes elastic connection with the housing 1 through the shielding spring piece 6 to ensure reliable conduction of the shielding between the tail attachment housing and the housing 1. In this embodiment, at least one shielding spring piece 6 is provided on the inner side of each sub-housing 5. One end of the shielding spring piece 6 is fixed in the fixing groove 53 in the sub-housing 5, and the other end has at least two cantilever-shaped elastic pieces, and the cantilever-shaped elastic pieces realize elastic contact between the tail attachment housing and the housing 1.

[0070] In an embodiment of the present invention, shielding pressing ribs 52 for enhancing the connection with the wire shielding are further provided on the inner wall of the tail attachment housing. Preferably, at least one shielding pressing rib 52 extending along the length direction of the housing 1 is provided on the inner wall of each sub-housing 5.

[0071] In other embodiments of the present invention, the tail attachment housing may also be an integral structure.

[0072] In the present invention, an elastic connection is added between the connector assembly housing and the tail attachment through a shielding spring piece. A shielding pressing rib structure is provided inside the attachment, effectively realizing the connection between the attachment and the wire shielding, significantly improving the conductivity between the overall housings of the product and the overall shielding performance of the product, and solving the problem that the shielding between the existing tail attachment and the housing mainly depends on screw connection and the shielding effect is not good.

[0073] In other embodiments of the present invention, the connector may also be a circular connector or other rectangular connectors. The insulator and the insulating pressing plate have dimensions and shapes adapted to the connector housing. The insulating pressing plate realizes the adaptation locking, unlocking and limiting of the insulator and the contact member through two cantilevers distributed relatively at its tail, meeting the requirement of the detachable connector. The dimensions and shapes of the connector do not affect the implementation of the technical solution of the present invention.

[0074] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the technical content disclosed above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A detachable connector, characterized in that: It includes a housing (1) and a transmission module detachably assembled in the housing. The transmission module includes an insulating assembly composed of an insulator (3) and an insulating pressure plate (4) connected end to end, and several contact members (2) assembled in the insulating assembly. A fixing boss (8) is provided on the outer side of the cantilever (42) at the tail of the insulating pressure plate (4). A boss (32) is provided on the outer periphery of the insulator (3). The insulating assembly is axially limited forward in the housing (1) by the cooperation of the boss (32) on the outer periphery of the front-end insulator (3) and the stepped surface (11) in the housing (1), and is axially blocked and limited backward in the housing (1) by the cooperation of the fixing boss (8) on the rear-end insulating pressure plate (4) and the locking groove (9) in the housing (1).

2. The detachable connector according to claim 1, wherein: On both sides of the tail of the insulating pressure plate (4), there are oppositely arranged cantilevers (42). On the middle part of the outer sides of the two cantilevers (42), there is a removal surface (7) each. This removal surface is used to enable a removal tool to apply a force to make the two cantilevers (42) deflect inward simultaneously, so that the fixing boss (8) disengages from the locking groove (9) to unlock.

3. The detachable connector according to claim 2, characterized in that: The removal surface (7) is an inclined surface that gradually extends from the front to the direction of the other cantilever (42).

4. The detachable connector according to claim 3, characterized in that: In the middle part of the cantilever (42), there is also an avoidance groove (10) facilitating the application of force by the removal device. This avoidance groove (10) extends axially along the insulating pressure plate (4) to the position where it connects with the removal surface (7).

5. The detachable connector according to claim 2, wherein: At the tail of the housing (1), there is a long groove for the removal tool to insert and apply force to the removal surface (7).

6. The detachable connector according to any one of claims 2-5, characterized in that: There is an overlap between the projection of the removal surface (7) and the fixing boss (8) in the radial direction.

7. The detachable connector according to claim 6, wherein: The fixing boss (8) is a wedge-shaped boss with a gradually increasing thickness from the front to the rear.

8. The detachable connector according to any one of claims 1-5 and 7, characterized in that: A ring-shaped boss (21) is provided on the outer periphery of the contact member (2). In the hole in the insulator (3) or the insulating pressure plate (4) through which the contact member (2) passes, there is a ring groove adapted to the ring-shaped boss (21). The front end face of the ring-shaped boss (21) is axially limited by the insulator (3), and the rear end face is axially limited by the insulator (4).

9. The detachable connector according to claim 8, wherein: The contact member (2) is a stranded pin contact member.

10. The detachable connector according to claim 8, wherein: The hole on the insulating pressure plate (4) adapted to the contact member (2) located at the edge position is a through hole open on one side.

11. A connector assembly, comprising the connector according to any one of claims 1-10 and a tail attachment housing, characterized in that: The housing (1) is a conductive housing. The tail attachment housing is fixed to the tail of the housing (1), and on the inner wall of the tail attachment housing, there are shielding spring pieces (6) for elastically contacting the outer peripheral surface of the housing (1) to achieve shielding conduction.

12. The connector assembly according to claim 11, wherein: The tail attachment housing is formed by two split housings (5) buckling with each other. At least one shielding spring piece (6) is provided on the inner side of each split housing (5).

13. The connector assembly according to claim 11 or 12, characterized in that: On the inner wall of the tail attachment housing, there are also at least one shielding pressing rib (52) extending along the length direction of the housing (1).

Images