CN106953188B - An adapter connector - Google Patents

Abstract

The invention provides a transfer connector, which comprises a connector shell, wherein the connector shell is provided with a plug-in section which is inserted into a mounting panel through a mounting hole of the mounting panel, and an elastic conductive ring which is used for being contacted with the inner hole wall surface of the mounting hole on the mounting panel is also arranged on the outer peripheral surface of the plug-in section. By arranging the elastic conductive ring on the inserting section of the connector, the contact conduction between the connector shell and the mounting panel can be realized in the radial direction, and the problem that the contact is unreliable due to the mounting factor of the connector in the traditional mode of realizing the conduction between the connector shell and the mounting panel through axial contact is avoided; and the radial contact is adopted, so that the installation space occupied by the connector is saved.

Description

An adapter connector

Technical field

The present invention relates to a conductive connector device, and in particular to an adapter connector.

Background technique

When connecting the printed board in the cabinet to the equipment outside the cabinet, it is often necessary to provide an adapter connector on the cabinet that is electrically connected to the printed board in the cabinet. For example, the Chinese invention patent with application date 2016.03.28 and publication number CN105826779A discloses an adapter connector and an equipment cabinet using the adapter connector. This kind of connector housing is provided with a mounting flange on the periphery, and is fixed on the mounting panel of the cabinet through the mounting flange. One end of the connector housing is connected to the printed circuit board, and the outer end is used for conductive connection with external equipment.

When designing this kind of adapter connector for grounding or shielding, it is often necessary to connect the connector shell to the installation panel of the cabinet, so as to realize the conduction between the ground end of the internal printed board and the cabinet or the connection of the connector. The shielding layer of the cable is connected to the installation panel of the cabinet. Currently, there are two main ways of connecting the connector shell and the mounting panel: one is to provide a spring piece on the mounting flange of the connector shell. When the connector is installed on the mounting panel, the spring piece is used to realize the connection in the axial direction. The effective connection between the connector housing and the mounting panel; the other is to set a boss on the housing mounting flange. During installation, the connection and conduction function is achieved through the contact between the boss and the panel.

Both of these two commonly used grounding methods achieve conduction between the connector shell and the panel through axial contact. Since human factors have a great impact on the reliability of this axial connection, it is easy to cause grounding when the installation is not in place. The contact contact is unreliable; in addition, whether the grounding is achieved through a shrapnel or a boss, it will increase the space occupied by the housing on the installation panel, affecting the overall volume of the product.

Contents of the invention

The object of the present invention is to provide an adapter connector that is reliably connected to an installation panel.

The adapter connector of the present invention includes a connector housing. The connector housing has an insertion section inserted into a mounting hole of a mounting panel and extending into the mounting panel. The connector housing also has an outer periphery of the insertion section. An elastic conductive ring is installed on the surface for contact with the inner hole wall surface of the mounting hole on the mounting panel. By arranging an elastic conductive ring in the insertion section of the connector, contact and conduction between the connector shell and the mounting panel can be achieved in the radial direction, avoiding the traditional conduction between the connector shell and the mounting panel through axial contact. The common method causes unreliable contact due to connector installation factors; and the use of radial contact also saves the installation space occupied by the connector.

The elastic conductive ring is a C-shaped ring, which facilitates installation with the connector housing.

The C-shaped ring includes a base body on which a plurality of axially extending grooves are spaced along the circumferential direction, and between two adjacent grooves there is an elastic bulging structure that can be elastically deformed in the radial direction. When the connector is installed in the mounting hole of the mounting panel, the elastic bulge structure can be radially extruded and deformed, and elastically compressed with the inner wall of the mounting hole, which increases the contact area and ensures the reliability of the connector shell and the mounting panel. touch.

The insertion section is provided with an installation ring groove at a position corresponding to the installation hole on the installation panel, and the C-shaped hoop is in the installation ring groove and connected by spot welding to at least one side of the groove wall of the installation ring groove.

A mounting flange is provided on the outer peripheral surface of the connector housing. The mounting flange is located outside the elastic conductive ring and is used to connect with the outer side of the mounting panel. The mounting flange is arranged on the outside of the elastic conductive ring, which can block the gap between the elastic conductive ring and the mounting hole of the mounting panel to prevent external water vapor and dust from entering.

The connector housing is provided with a ground contact piece for electrically contacting the ground end of the printed board, and the ground contact piece is electrically connected to the connector housing.

The ground contact piece includes an annular base body. The inner wall surface of the annular base body is connected with two corresponding up and down and axially extending ground contact pieces. The two ground contact pieces constitute a ground contact piece pair and the two ground contact pieces are connected to the inner wall surface of the annular base body. The gap between them constitutes an insertion space for the axial insertion of the adapted ground terminal gold finger. The annular base body contacts the connector shell through the contact portion provided on its outer peripheral surface.

The annular base body is a C-shaped annular structure, and two ground contact pieces are connected at both ends of the C-shaped annular base body.

The two ends of the C-shaped annular base body are bent radially inward and form clamping arms for clamping connection with the clamping grooves on the insulator. The ground contact piece is integrally connected to the clamping arms at both ends of the C-shaped annular base body.

The annular base body is provided with a plurality of axially extending elongated holes at intervals along the circumferential direction, and the contact portion is an elastic bulge structure provided between two adjacent elongated holes.

Description of drawings

Figure 1 is a schematic structural diagram of Embodiment 1 of the adapter connector of the present invention;

Figure 2 is a schematic diagram of an adapter connector according to Embodiment 1 of the present invention installed on a mounting panel;

Figure 3 is a schematic structural diagram of the adapter connector according to Embodiment 1 of the present invention without the elastic conductive ring installed;

Figure 4 is a schematic structural diagram of the elastic conductive ring in Figure 1;

Figure 5 is a schematic diagram of the cross-sectional shape of the elastic conductive ring;

Figure 6 is an exploded three-dimensional view of Figure 3;

Figure 7 is a schematic structural diagram of the chip contact in Figure 6.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

The first specific embodiment of the adapter connector of the present invention, as shown in Figures 1 to 7, includes a connector housing 1. The connector housing 1 has a mounting hole inserted into the mounting panel and an insert extending into the mounting panel. segment, the connector housing 1 is equipped with an elastic conductive ring 2 on the outer peripheral surface of the insertion segment for contacting the inner hole wall surface of the mounting hole on the mounting panel 9 . By arranging the elastic conductive ring 2 in the insertion section of the connector, contact and conduction between the connector housing 1 and the mounting panel 9 can be achieved in the radial direction.

Specifically, the elastic conductive ring 2 includes a C-shaped annular base body 20. The base body 20 is provided with a plurality of axially extending grooves 21 spaced in the circumferential direction. There is a gap between two adjacent grooves 21 that can be extended in the radial direction. The elastic bulging structure 22 of the elastic conductive ring undergoes elastic deformation. When the connector is installed in the mounting hole of the mounting panel, the elastic bulge structure 22 of the elastic conductive ring can be radially extruded and deformed, and elastically compressed with the inner wall of the mounting hole, thereby increasing the contact area and ensuring that the connector shell and the mounting panel are reliable contact. In other embodiments, the elastic conductive ring can also be directly used as a watch strap contact finger or a spring contact finger.

The plug-in section of the connector housing 1 is provided with a mounting ring groove 19 at a position corresponding to the mounting hole on the mounting panel 9. The C-type hoop is in the mounting ring groove 19 and is spot welded to the wall of the mounting ring groove. Connect as shown in Figure 1 at position B. Of course, in other embodiments, the C-ring housing is connected to the connector housing via radial connecting screws. A mounting flange 11 is provided on the outer peripheral surface of the connector housing 1 , and a mounting ring groove 19 extends axially inward from the inner side of the mounting flange 11 . In this way, the mounting flange is arranged outside the elastic conductive ring, which can block the gap between the elastic conductive ring and the mounting hole of the mounting panel to prevent external water vapor and dust from entering.

The connector housing 1 is provided with a ground contact for electrically contacting the ground end of the printed board. The ground contact is in conduction with the connector housing. In this way, the transfer connector realizes the connection between the printed board inside the cabinet and the cabinet shell. The conduction of the body is grounded. Among them, there are many ways to realize the conduction between the ground contact and the connector shell in the prior art. The embodiment of the adapter connector of the present invention provides a more preferred way, which is as follows:

As shown in Figures 6-7, an insulator 10 is inserted into the connector housing 1, and the ground contact 13 and the conductive contacts used for power transmission are installed on the insulator. The ground contact 13 includes a C-shaped annular base body 130. The C-shaped annular base body 130 is hooped on the rear end outer peripheral surface of the insulator 10 and is in contact with the inner peripheral surface of the connector housing 1 through the outer peripheral surface. The C-shaped annular base body 130 is 130 is provided with axially extending ground contact pieces 1302 at both ends. The two ground contact pieces 1302 are arranged up and down opposite to form a ground contact piece pair, and the gap between the two ground contact pieces 1302 constitutes a grounding golden finger axis for adaptation. Towards the insertion space.

Specifically, both ends of the C-shaped annular base 130 are bent radially inward to form clamping arms 1301. The ground contact piece 1302 is integrally connected to the clamping arms 1301 at both ends of the C-shaped annular base 130. The insulator 10 is used for The outer circumferential surface of the C-ring base body 130 is provided with two radially inwardly extending clamping grooves 101, and the clamping arms 1301 are stuck in the clamping slots 101, which conveniently realizes the fixed connection between the chip contact and the insulator. , simplifying the connection structure. The C-shaped annular base 130 is provided with a plurality of axially extending elongated holes 1300 at intervals along the circumferential direction. A sheet contact elastic bulge structure 1303 is provided between two adjacent elongated holes 1300. The sheet contact is in the hoop. After the insulator 10 is installed, the elastic bulge 1303 of the chip contact piece comes into contact with the inner peripheral surface of the connector housing 1, so that good contact between the chip contact piece and the inner peripheral surface of the connector housing can be achieved, ensuring the stability of grounding. and reliability.

The conductive contacts installed in the insulator 10 include a pin 12 at the front end and a pair of conductive contacts 120 connected to the rear end of the pin 12. The pair of conductive contacts 120 includes two upper and lower opposite conductive contacts. The conductive contacts and the conductive contacts form a chip type. The two ground contact pieces 1302 of the contact piece have the same structure, and the front ends of the conductive contact pieces are integrally connected through vertical parts and riveted to the rear ends of the pins 12 . The pair of contact blades of the conductive contact piece and the pair of contact blades of the chip contact piece are arranged side by side in the radial direction, and together form the rear plug-in end of the adapter connector.

In order to protect the contact pieces of the conductive contacts and the chip contacts, the rear end of the insulator 10 is provided with cantilever arms 100 on the upper and lower sides of the contact piece pair, and the rear end of the cantilever arm 100 is on the upper and lower sides of the contact piece pair. The rear side is provided with oppositely bent protective plates 102. The protective plates 102 block the rear sides of the upper and lower contact plates of the contact plate pair to prevent the contact plate pair from being printed during the insertion process of the adapter connector and the printed board. The board is bent or damaged due to collision.

The two contact pieces of the contact piece pair of the conductive contact piece and the chip contact piece are symmetrically bent, so that the gap between them is large at both ends and small in the middle in the axial direction. In this way, when the adapted gold finger guides the electrical contact, The elastic force of bending deformation can be pressed against the upper and lower sides of the gold finger to ensure the stability and reliability of conductive contact.

In the above embodiments, the ring-shaped base body of the chip contact is a C-shaped ring structure, and the ground contact piece is integrally connected to both ends of the C-shaped ring. In other embodiments, the ring-shaped base body is a closed ring, and the contact piece passes through Spot welding or screw connection is fixed on the inner wall surface of the annular base body; or the ground contact piece is connected to both ends of the C-shaped ring through spot welding; in the above embodiment, the insulator is provided with a snap-in groove and is connected to the annular base body by The clamping arm snaps into the clamping groove to realize the fixed installation of the chip contact piece and the insulator. In other embodiments, the clamping slot may not be provided on the insulator, and only accommodating grooves for accommodating the ground contact pair are provided on the insulator. The chip contact can be fixed on the insulator by providing connecting screws connected to the insulator on the annular base; or the insulator can also be provided with a backward-facing annular groove for the front end of the annular base to be inserted to fix the chip insulator on the insulator. on the insulator.

In the above embodiments, the contact portion of the annular base for contacting the connector housing is provided as an elastic bulge between the two elongated holes of the annular base. In other embodiments, the contact portion can be directly the annular base. The outer peripheral surface, or the outer peripheral surface of the annular base body is a straight cylindrical surface, and protrusions are provided on its outer periphery to form the contact portion.

In other usage situations, such as when connecting a cable to an adapter connector, the shielding layer of the cable can be connected to the connector shell. Then the elastic conductive ring can also connect the shielding layer of the cable to the cabinet, which plays a better role. Shielding effect.

The transfer connector of the present invention has a simple structure, conveniently realizes the connection between the connector shell and the cabinet installation panel, and facilitates grounding design.

Claims (8)

1. An adapter connector, comprising a connector housing, the connector housing having an insertion section extending into the mounting panel through a mounting hole of the mounting panel, characterized in that the connector housing is also An elastic conductive ring is installed on the outer peripheral surface of the plug-in section for contact with the inner hole wall of the mounting hole on the mounting panel; The connector housing is provided with a ground contact for electrically contacting the ground end of the printed board, and the ground contact is in conduction with the connector housing; The ground contact piece includes an annular base body. The inner wall surface of the annular base body is connected with two corresponding up and down and axially extending ground contact pieces. The two ground contact pieces constitute a ground contact piece pair and the two ground contact pieces are connected to the inner wall surface of the annular base body. The gap between them constitutes an insertion space for the axial insertion of the adapted ground terminal gold finger, and the annular base body contacts the connector shell through the contact portion provided on its outer peripheral surface; The adapter connector has an insulator, and the insulator is inserted into the connector housing; The ground contact piece is sleeved on the insulator. 2. The adapter connector according to claim 1, wherein the elastic conductive ring is a C-shaped ring. 3. The adapter connector according to claim 2, wherein the C-shaped ring includes a base body, and a plurality of axially extending grooves are provided on the base body at intervals along the circumferential direction, and two adjacent grooves are There is an elastic drum structure that can elastically deform in the radial direction. 4. The adapter connector according to claim 3, wherein the insertion section is provided with a mounting ring groove at a position corresponding to the mounting hole on the mounting panel, and the C-type hoop is installed when the In the ring groove and connected by spot welding to at least one side of the groove wall where the ring groove is installed. 5. The adapter connector according to any one of claims 1 to 4, characterized in that the outer peripheral surface of the connector housing is provided with a mounting flange, and the mounting flange is located outside the elastic conductive ring. Connect to the outside of the mounting panel. 6. The adapter connector according to any one of claims 1 to 4, characterized in that the annular base body is a C-shaped annular structure, and two ground contact pieces are connected to both ends of the C-shaped annular base body. . 7. The adapter connector according to claim 6, wherein both ends of the C-shaped annular base body are bent radially inward and form clamping arms for clamping connection with the clamping grooves on the insulator. , the ground contact piece is integrally connected to the clamping arms at both ends of the C-shaped annular base body. 8. The adapter connector according to claim 7, wherein the annular base body is provided with a plurality of axially extending elongated holes at intervals along the circumferential direction, and the contact portion is provided at two adjacent elongated holes. The elastic drum structure between them.