CN105811140A - Electrical connector and jack and inner sleeve thereof - Google Patents

Abstract

The invention relates to an electrical connector and its socket and inner sleeve. The socket includes an inner sleeve and a plurality of wire spring wires arranged at intervals along the circumferential direction of the inner sleeve. The front end of the spring wire has a front overhang structure that turns outward to the outside of the inner sleeve body and overhangs backward, and the rear end of the wire spring wire has a rear overhang structure that turns over to the outside of the inner sleeve body and overhangs forward. Structure, the inner sleeve body is provided with multiple pairs of wire spring wire limit grooves, each pair of wire spring wire limit grooves includes a wire spring wire front limit groove set on the front surface of the inner sleeve body and a wire spring wire front limit groove set on the inner sleeve body. The front limit groove on the end face and the front limit groove of the wire spring wire deviate from each other in the circumferential direction of the inner sleeve body, the front overhang structure of the wire spring wire passes through the front limit groove of the wire spring wire in the radial direction, and the rear overhang of the wire spring wire The structure passes through the rear limiting groove of the corresponding wire spring wire in the radial direction. The invention solves the problem of easy movement and dislocation of the wire spring wire in the prior art.

Description

A kind of electrical connector and its jack and inner sleeve

technical field

The invention relates to an electric connector for electric signal transmission, a socket and an inner sleeve thereof.

Background technique

The common jacks are wired spring jacks and crown spring jacks, etc. This kind of jacks also have certain particularities in their fixing structures due to the particularity of their spring body structure. Fig. 1 is a kind of wire spring socket, including inner cover 4, outer cover and spring body made of a plurality of wire spring wires 1, the front end of the spring body is turned outward and has a front overhang structure 2 overhanging backward, the spring body There is a rear overhang structure 5 that overhangs forward. Special tools are required to ensure that the angle between the wire spring wire and the center line of the inner sleeve is 6 degrees, that is to say, the contact position between the front overhang structure and the inner sleeve and the rear The contact positions of the overhanging structure and the inner sleeve do not correspond to each other in the circumferential direction. When in use, the front and rear overhanging structures are clamped between the inner and outer jackets, and in order to ensure that the front and rear overhanging structures can be smoothly assembled into the outer jacket, the outer jacket includes the front cover 3 and the rear cover 6. When assembling, the thread The spring wire is fitted with the inner sleeve, and then the rear end and rear overhang structure of the inner sleeve are loaded into the rear sleeve from front to back, and the front end and front overhang structure of the inner sleeve are loaded into the front sleeve from back to front. In the sleeve, the front and rear sleeves are welded and fixed to realize the assembly of the entire jack. The problem with the existing socket is that in order to prevent the corresponding overhanging structure from being damaged during installation, the direction in which the overhanging structure is put into the jacket must be opposite to the overhanging direction of the overhanging structure. Some assembly occasions will cause great inconvenience. In addition, it is necessary to set the jacket into a front and rear sleeve structure, and then weld the front and rear sleeves together. The entire assembly process is very complicated and the assembly efficiency is low; There is a risk of misalignment. In addition, in order to prevent the corresponding spring wires from contacting each other after the misalignment of the wire spring wires, the number of wire spring wires should not be too many, generally only six, resulting in limited flow capacity of the socket.

Contents of the invention

The purpose of the present invention is to provide a socket to solve the problem of easy movement and dislocation of the wire spring wire in the prior art; set.

In order to solve the problems referred to above, the technical scheme of jack among the present invention is:

The socket includes an inner sleeve and a plurality of wire spring wires arranged at intervals along the circumference of the inner sleeve. The inner sleeve includes an inner sleeve body whose axis extends in the front-rear direction. A front overhang structure that overhangs backwards. The rear end of the wire spring wire has a rear overhang structure that is turned outward to the outside of the inner sleeve body and overhangs forward. There are multiple pairs of wire spring wire limiters on the inner sleeve body. Each pair of wire spring wire limit grooves includes a wire spring wire front limit groove set on the front end surface of the inner sleeve body and a wire spring wire front limit groove set on the inner sleeve body rear end surface. Deviated from each other in the circumferential direction, the front overhang structure of the wire spring wire passes through the front limit groove of the wire spring wire radially, and the rear overhang structure of the wire spring wire passes through the rear limit groove of the corresponding wire spring wire along the radial direction Pass.

There are at least 20 spring wires.

The socket also includes a jacket with a jacket body, and an annular installation cavity is arranged on the inner hole wall of the jacket body on the periphery of the rear overhanging structure. The rear overhang holds the fixed sleeve.

The front end of the overcoat is a plug-in end, and the back side of the overcoat body is provided with a stopper that cooperates with the fixed sheath to limit the backward movement of the fixed sheath.

The limiting member is a limiting nut threadedly engaged with the wall of the inner hole of the casing body.

On the inner wall of the jacket body, a rear stop step is provided on the front side of the fixed sleeve to cooperate with the fixed sleeve to limit the forward movement limit of the fixed sleeve.

The front end of the overcoat is a plug-in end, and the inner hole wall of the overcoat body is provided with spring contact fingers on the front side of the spring body.

The outer casing is of integral structure, and the inner wall of the outer casing body is provided with a front stop step which is used to stop and cooperate with the front overhang structure to limit the forward movement limit of the front overhang structure and the inner sleeve.

The technical scheme of inner cover among the present invention is:

The inner sleeve of the socket includes the inner sleeve body whose axis extends in the front-to-back direction. The inner sleeve body is provided with a plurality of pairs of wire spring wire limit grooves, and each pair of wire spring wire limit grooves is provided on the front surface of the inner sleeve body. The front limit groove of the wire spring wire for the front overhang structure on the corresponding wire spring wire to pass through in the radial direction and the rear overhang structure provided on the rear end surface of the inner sleeve body for the corresponding wire spring wire along the radial direction The rear limit groove of the threaded spring wire, the rear limit groove of the wire spring wire and the front limit groove of the wire spring wire deviate from each other in the circumferential direction of the inner sleeve body.

The technical scheme of the electrical connector in the present invention is:

The electrical connector includes a socket. The socket includes an inner sleeve and a plurality of wire spring wires arranged at intervals along the circumference of the inner sleeve. The outer side of the inner sleeve body and the front overhang structure that hangs backward. For wire spring wire limit grooves, each pair of wire spring wire limit grooves includes a wire spring wire front limit groove arranged on the front end surface of the inner sleeve body and a wire spring wire front limit groove arranged on the rear end surface of the inner sleeve body. The position grooves deviate from each other in the circumferential direction of the inner sleeve body, the front overhang structure of the wire spring wire passes through the front limiting groove of the wire spring wire in the radial direction, and the rear overhang structure of the wire spring wire is radially passed by the corresponding wire spring wire. Pass through the rear limit slot.

There are at least 20 spring wires.

The socket also includes a jacket with a jacket body, and an annular installation cavity is arranged on the inner hole wall of the jacket body on the periphery of the rear overhanging structure. The rear overhang holds the fixed sleeve.

The front end of the overcoat is a plug-in end, and the back side of the overcoat body is provided with a stopper that cooperates with the fixed sheath to limit the backward movement of the fixed sheath.

The limiting member is a limiting nut threadedly engaged with the wall of the inner hole of the casing body.

On the inner wall of the jacket body, a rear stop step is provided on the front side of the fixed sleeve to cooperate with the fixed sleeve to limit the forward movement limit of the fixed sleeve.

The front end of the overcoat is a plug-in end, and the inner hole wall of the overcoat body is provided with spring contact fingers on the front side of the spring body.

The outer casing is of integral structure, and the inner wall of the outer casing body is provided with a front stop step which is used to stop and cooperate with the front overhang structure to limit the forward movement limit of the front overhang structure and the inner sleeve.

The beneficial effects of the present invention are as follows: in the present invention, the wire spring wire limit groove corresponding to the number of wire spring wires is arranged on the inner sleeve body, and the front overhanging structure of the wire spring wire is separated from the front limit groove of the wire spring wire in the radial direction. Through the middle, the rear overhang structure of the wire spring wire passes through the rear limiting groove of the wire spring wire in the radial direction, so that each wire spring wire is reliably positioned to prevent the wire spring wire from moving and misaligning.

Further, the reliably positioned wire spring wires can increase the number of wire spring wires, thereby ensuring the flow capacity.

Further, the inner hole wall of the jacket body is provided with an annular mounting cavity on the periphery of the rear overhanging structure. Due to the setting of the annular mounting cavity, there is a certain distance between the cavity wall of the annular mounting cavity and the rear overhanging structure, so the spring The body and the inner sleeve can be loaded into the inner hole of the outer sleeve body from back to front without causing damage to the rear overhang structure, and then the fixed sleeve is installed in the annular installation cavity, and the fixing sleeve and the inner sleeve are matched to complete The clamping and fixing of the rear overhanging structure realizes that the extending direction of the rear overhanging structure is consistent with the direction in which the rear overhanging structure is loaded into the jacket, thereby improving the convenience of use of the product.

Further, the jacket can realize the overall structure, and only need to make the spring body together with the inner jacket be loaded into the inner hole of the jacket body from back to front during assembly. The jacket with the overall structure is not only convenient for production, but also helps Improve assembly efficiency.

Description of drawings

Fig. 1 is the structural representation of background technology among the present invention;

Fig. 2 is a schematic structural diagram of a jack in an embodiment of the electrical connector in the present invention, and is also a structural schematic diagram of an embodiment of the jack in the present invention;

Fig. 3 is the structural representation of coat among Fig. 2;

Fig. 4 is a schematic structural view of the inner sleeve in Fig. 2;

FIG. 5 is a schematic structural diagram of the spring contact finger in FIG. 2 .

detailed description

An embodiment of an electrical connector is shown in Figures 2 to 5: it includes a jack, and the jack includes a spring body and an inner sleeve and an outer sleeve 5 whose axis extends along the front and rear directions. Both the inner sleeve and the outer sleeve adopt an integral structure, and the front end of the outer sleeve 5 For the plug-in terminal. The casing includes a casing body 14, the inner hole of the casing body 14 is a stepped hole structure, and the stepped hole structure includes a small-diameter hole section 17, a middle-diameter hole section 15 and a large-diameter hole section 12 whose diameter gradually increases from front to back. The inner sleeve includes an inner sleeve body 6, the outer peripheral surface of the inner sleeve body 6 is a stepped shaft structure, and the outer peripheral surface of the stepped shaft structure includes a large-diameter shaft section 61 in the middle and small-diameter shaft sections 62 on both sides of the large-diameter shaft section 61, Wherein the size of the large-diameter shaft section 61 is adapted to the size of the middle-diameter hole section 15, the spring body includes 60 cylindrical wire spring wires 3 arranged at intervals along the circumferential direction, and the front end surface of the inner sleeve body is provided with a A corresponding front limit groove 18 of the wire spring wire, the rear end surface of the inner sleeve body is provided with a wire spring wire rear limit groove 19 corresponding to the wire spring wire one by one, and the front end of each wire spring wire has a function of valgus to the inner sleeve. The front overhang structure 2 that overhangs outside and backward, the rear end of each wire spring wire has a rear overhang structure 9 that is turned outward to the outside of the inner sleeve and overhangs forward, and the front and rear overhang structures are all in the corresponding small diameter Shaft section 62. The front and rear overhanging structures of the same wire spring respectively pass through the front limit groove of the corresponding wire spring wire and the rear limit groove of the wire spring wire along the radial direction, corresponding to the front limit of the same wire spring wire. The groove and the rear limit groove of the wire spring wire deviate from each other in the circumferential direction, that is, the projections of the front limit groove of the wire spring wire and the rear limit groove of the corresponding wire spring wire in the axial direction are staggered, corresponding to the same wire spring wire. The front limit groove of the wire spring wire and the rear limit groove of the wire spring wire form a pair of wire spring wire limit grooves, so that the wire spring wire can form a certain deflection angle with the center line of the inner sleeve to ensure that the wire spring wire and the corresponding Reliable insertion of pins. In use, the inner sleeve 6 equipped with a spring body is inserted into the middle-diameter hole section 15 and the large-diameter hole section 12 of the stepped hole structure from back to front, and the step surface between the small-diameter hole section 17 and the middle-diameter hole section 15 is formed. The front stop step 16 is used to cooperate with the front overhang structure to limit the forward movement limit of the spring body and the inner sleeve. The large-diameter hole section forms an annular installation cavity located on the periphery of the rear overhang structure. The ring-shaped installation cavity is equipped with a fixed sleeve 8 that cooperates with the inner sleeve and clamps and fixes the rear overhang structure from back to front. The middle diameter hole section The step surface between the large-diameter hole section constitutes a rear stop step 13 for limited cooperation with the fixed sleeve to limit the forward movement limit of the fixed sleeve. The inner hole wall of the jacket body is provided with a threaded section 11 on the rear side of the annular mounting cavity, and the threaded section 11 is screwed with a limit nut 10. The limit nut 10 includes a threaded section that is threaded with the jacket body and is arranged on the threaded section. The baffle plate at the front end cooperates with the fixed sleeve and the rear overhang structure to limit the backward movement of the fixed sleeve, the inner sleeve and the spring body. The inner hole wall of the jacket body is provided with a spring contact finger 1 on the front side of the spring body, and conducts electricity through the cooperation of the spring contact finger and each wire spring body to ensure the flow capacity.

When assembling, first assemble each wire spring wire into the corresponding wire spring wire front and rear limit grooves, because the wire spring wire front and rear limit grooves of each pair of wire spring wire limit grooves deviate from each other in the circumferential direction ( That is, the centerlines of the front and rear limit grooves of each pair of wire spring wire limit grooves form a certain angle), so each wire spring wire will generate radial retraction force, when used with the matching pin, The wire spring wire and the contact pin produce a radial clamping force to ensure reliable contact. The use of the front and rear limit grooves of the wire spring wire forms a limit for each wire spring wire, ensuring that the wire spring wire will not move, and also makes the quantity It is possible to assemble more wire spring wires to ensure the flow capacity of the product. After the front overhanging structure is stopped by the front stop step, the fixed sleeve is loaded into the annular installation cavity from back to front, and then the limit nut is screwed into the inner hole of the outer casing body to complete the assembly. The process is simple and convenient, and the assembly efficiency is greatly improved.

In other embodiments of the present invention: the number of wire spring wires can also be set according to needs, such as 10, 20, 35, etc.; The structure; the limit nut can also be replaced by some other limit parts that can realize the stop and limit of the fixed sleeve and the inner sleeve, such as the snap ring that is clamped on the inner wall of the outer cover; of course, when the fixed sleeve and the outer cover And when the interference force between the rear overhang end and the inner sleeve can ensure that the inner sleeve will not move backward, the limiter can also be omitted; the limit fixation of the front extension structure can also be similar to that of the rear extension structure. In the form of fixing, for example, an annular installation cavity is provided on the inner wall of the outer casing at the periphery of the front extension structure, and then a fixing sleeve is inserted into the annular installation cavity from front to back, thereby realizing the fixation of the front extension structure.

The embodiment of the jack is shown in Figures 2-5: the specific structure of the jack is the same as that of the jack described in the above connector embodiments, and will not be described in detail here.

The embodiment of the inner sleeve is shown in Figures 2 to 5: the specific structure of the inner sleeve is the same as the inner sleeve described in the above connector embodiments, and will not be described in detail here.

Claims (10)

1. The socket includes an inner sleeve and a plurality of wire spring wires arranged at intervals along the circumference of the inner sleeve. The inner sleeve includes an inner sleeve body whose axis extends in the front and rear directions. A front overhang structure that overhangs from the outside to the rear. The rear end of the wire spring wire has a rear overhang structure that turns outward to the outside of the inner sleeve body and overhangs forward. It is characterized in that: the inner sleeve body is provided with multiple For wire spring wire limit grooves, each pair of wire spring wire limit grooves includes a wire spring wire front limit groove arranged on the front end surface of the inner sleeve body and a wire spring wire front limit groove arranged on the rear end surface of the inner sleeve body. The position grooves deviate from each other in the circumferential direction of the inner sleeve body, the front overhang structure of the wire spring wire passes through the front limiting groove of the wire spring wire in the radial direction, and the rear overhang structure of the wire spring wire is radially passed by the corresponding wire spring wire. Pass through the rear limit slot. 2. The jack according to claim 1, wherein there are at least 20 wire spring wires. 3. The socket according to claim 1, characterized in that: the socket also includes a jacket with a jacket body, the inner hole wall of the jacket body is provided with a ring-shaped installation cavity on the periphery of the rear overhang structure, and the ring mount A fixed sleeve that cooperates with the inner sleeve and clamps and fixes the rear overhanging structure is installed in the cavity from back to front. 4. The socket according to claim 3, characterized in that: the front end of the outer sleeve is a plug-in end, and the rear side of the outer sleeve body is provided with a limiter that cooperates with the fixed sleeve to limit the backward movement of the fixed sleeve. bit pieces. 5 . The socket according to claim 4 , wherein the limiting member is a limiting nut threadedly engaged with the wall of the inner hole of the casing body. 6 . 6. The jack according to claim 3, characterized in that: the inner wall of the jacket body is provided with a rear stop step on the front side of the fixed sleeve for blocking and cooperating with the fixed sleeve to limit the forward movement limit of the fixed sleeve. 7. The jack according to claim 3, wherein the front end of the jacket is a plug-in end, and spring contacts are provided on the wall of the inner hole of the jacket body on the front side of the spring body. 8. The jack according to any one of claims 3 to 7, characterized in that: the jacket is an integral structure, and the inner wall of the jacket body is provided with a stopper for cooperating with the front overhang structure to limit the front overhang structure and the inner wall. Set of front stop steps for forward movement limit. 9. The inner sleeve of the socket, including the inner sleeve body whose axis extends in the front and rear direction, is characterized in that: the inner sleeve body is provided with a plurality of pairs of wire spring wire limit grooves, and each pair of wire spring wire limit grooves includes a The front limit groove of the wire spring wire on the front end surface of the inner sleeve body for the front overhang structure on the corresponding wire spring wire radially passes through and the rear end of the wire spring wire provided on the rear end surface of the inner sleeve body. The overhanging structure radially passes through the rear limit groove of the wire spring wire, and the rear limit groove of the wire spring wire and the front limit groove of the wire spring wire deviate from each other in the circumferential direction of the inner sleeve body. 10. An electrical connector, characterized in that it comprises the socket according to any one of claims 1-8.