CN212845480U

CN212845480U - Detection connector

Info

Publication number: CN212845480U
Application number: CN202020948195.3U
Authority: CN
Inventors: 梁红梅; 黄颗; 吕银涛
Original assignee: Shenzhen Electric Connector Technology Co Ltd
Current assignee: Shenzhen Electric Connector Technology Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-29
Publication date: 2021-03-30
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a detection connector, which comprises a first sleeve, a second sleeve and a connector body, wherein the first sleeve is provided with a first shaft shoulder and a second shaft shoulder; the first insulating column is fixed in the inner hole of the first sleeve and provided with a first through hole; the center needle is fixed in the first through hole; the second sleeve is fixedly connected with the first sleeve, and the second sleeve is electrically connected with the first sleeve; the third sleeve is connected with the second sleeve in a sliding mode, and the second sleeve is electrically connected with the third sleeve; the probe and the central needle are of an integrated structure; the clamp spring is connected with the outer peripheral surface of the first sleeve in a sliding manner; the inner hole of the fastening ring is in interference fit with the outer peripheral surface of the clamp spring, so that the wall surface of the inner hole of the clamp spring is in contact with the outer peripheral surface of the first sleeve, and the inner diameter of the clamp spring is smaller than the outer diameter of the first shaft shoulder. Compared with the prior art, the structure is simplified.

Description

Detection connector

Technical Field

The utility model relates to a high frequency signal tests technical field, especially relates to a survey connector.

Background

Prior art 1(CN106680540A) discloses a coaxial connector for probing, which includes a main sleeve, an outer sleeve, a socket, an insulating spacer, a probe, a socket elastic piece, a probe elastic piece, and an assembly base, wherein the probe sleeve and the probe head are a single component.

The disadvantages are as follows: the coaxial connector has many parts and complex structure.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a detection connector, which simplifies the structure.

In order to realize the purpose, the utility model discloses the technical scheme who takes is:

a probe connector comprising:

a first sleeve having a first shoulder and a second shoulder;

the first insulating column is fixed in the inner hole of the first sleeve and provided with a first through hole;

the center needle is fixed in the first through hole;

the second sleeve is fixedly connected with the first sleeve, and the second sleeve is electrically connected with the first sleeve;

the third sleeve is connected with the second sleeve in a sliding mode, and the second sleeve is electrically connected with the third sleeve;

the probe and the central needle are of an integrated structure;

the clamp spring is connected with the outer peripheral surface of the first sleeve in a sliding manner;

the inner hole of the fastening ring is in interference fit with the outer peripheral surface of the clamp spring, so that the wall surface of the inner hole of the clamp spring is in contact with the outer peripheral surface of the first sleeve, and the inner diameter of the clamp spring is smaller than the outer diameter of the first shaft shoulder;

the first spring is arranged between the clamp spring and the second shaft shoulder and applies force in the direction that the clamp spring is far away from the second shaft shoulder.

Preferably, the device further comprises a fourth sleeve, one end of the fourth sleeve is fixedly connected with the first sleeve, one end of the fourth sleeve is electrically connected with the first sleeve, the other end of the fourth sleeve is slidably connected with the third sleeve, a convex part is arranged on the peripheral surface of the fourth sleeve, the convex part is in surface contact with the inner hole wall of the third sleeve, and the third sleeve is electrically connected with the fourth sleeve;

preferably, the second sleeve is provided with a retaining ring, the third sleeve is provided with a third shaft shoulder, the third shaft shoulder is in clearance fit with the inner hole of the second sleeve, and the inner diameter of the retaining ring is smaller than the outer diameter of the third shaft shoulder.

Preferably, the fluid pressure sensor further includes a second spring that is provided between the first sleeve and the third sleeve and biases the third sleeve in a direction away from the first sleeve.

Preferably, the first sleeve is in threaded connection with the second sleeve.

Preferably, the probe further comprises a fifth sleeve and a second insulating column, the fifth sleeve is fixedly connected with the third sleeve, the second insulating column is fixed in an inner hole of the fifth sleeve, the second insulating column is provided with a second through hole, and the probe is fixed in the second through hole.

The beneficial effects of the utility model reside in that: the probe and the central needle are of an integrated structure, and compared with the prior art, the structure is simplified. In addition, the fastening ring is mounted in the clamp of the drive device, reducing the space required for mounting compared to prior art assembly sockets. In addition, through the combined action of the first sleeve, the clamp spring and the fastening ring, the clamp spring is tightly matched with the first sleeve, the fastening ring is tightly matched with the clamp spring, the concentricity of the fastening ring and the first sleeve is improved, the installation precision of the whole detection connector in the driving equipment clamp is improved, and therefore abrasion generated when the detection connector is matched with a product to be detected is reduced.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is a perspective view of the first sleeve, the second sleeve, the third sleeve, the fourth sleeve, the fifth sleeve, the snap spring and the fixing sleeve in the embodiment of the present invention;

fig. 4 is a cross-sectional view of the first sleeve, the second sleeve, the third sleeve, the fourth sleeve, the fifth sleeve, the snap spring and the fixing sleeve of the embodiment of the present invention;

fig. 5 is a cross-sectional view of the embodiment of the present invention installed in a driving device clamp.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

As shown in fig. 1 to 5, a probe connector includes a first sleeve 110, a first insulating post 120, a center pin 130, a second sleeve 140, a third sleeve 150, a probe 160, a snap spring 170, a fastening ring 180, and a first spring 190.

The first sleeve 110 is made of a metal conductive material and has a cylindrical shape, a first shoulder 111 and a second shoulder 112 are provided on an outer circumferential surface of the first sleeve 110, and the second shoulder 112 is located below the first shoulder 111.

The first insulating column 120 is made of an insulating material and fixed in the inner hole of the first sleeve 110, and the first insulating column 120 is provided with a first through hole (not shown).

The center pin 130 is made of a metal conductive material and has a pin body shape, the center pin 130 is electrically connected to a center conductor of a coaxial line in the prior art to transmit a high frequency signal, and the center pin 130 is fixed in the first through hole.

The second sleeve 140 is made of a metal conductive material and is cylindrical, the upper end of the second sleeve 140 is fixedly connected with the lower end of the first sleeve 110, and the inner hole of the first sleeve 110 is communicated with the inner hole of the second sleeve 140.

The third sleeve 150 is made of a metal conductive material and has a cylindrical shape, and the outer circumferential surface of the third sleeve 150 is in clearance fit with the inner hole of the second sleeve 140 to be slidably connected.

The probe 160 is made of a metal conductive material and has a needle shape, one end of the probe 160 is electrically connected to the center pin 130, and when testing, the other end of the probe 160 is electrically contacted to a high frequency terminal of a product to be tested to perform a high frequency signal test. The probe 160 is of an integral construction with the central needle 130.

The first sleeve 110 is in contact with the insulating layer of the coaxial line and is conductive, the first sleeve 110 is in contact with the second sleeve 140 and is conductive, the second sleeve 140 is in contact with the third sleeve 150 and is conductive, and the third sleeve 150 is in contact with the grounding terminal of a product to be tested during testing, so that the electromagnetic shielding effect can be achieved on the center pin 130 and the probe 160, and the testing result is more accurate and reliable.

The clamp spring 170 is C-shaped, and the clamp spring 170 is sleeved on the outer circumferential surface of the first sleeve 110 and is slidably connected with the first sleeve 110.

The fastening ring 180 is in a circular shape, and an inner hole of the fastening ring 180 is in interference fit with the outer peripheral surface of the snap spring 170, so that the inner hole of the snap spring 170 is in close fit with the outer peripheral surface of the first sleeve 110, and the inner diameter of the snap spring 170 is smaller than the outer diameter of the first shoulder 111.

And the first spring 190 is arranged between the snap spring 170 and the second shaft shoulder 112, and applies force in a direction in which the snap spring 170 is away from the second shaft shoulder 112, one end of the first spring 190 abuts against the snap spring 170, and the other end of the first spring 190 abuts against the second shaft shoulder 112. The circlip 170 interferes with the first shoulder 111 by the first spring 190 to position the circlip 170.

The probe 160 and the center pin 130 of the present invention are integrated, and compared with the prior art, the structure is simplified. In addition, as shown in fig. 5, the fastening ring 180 is installed into the jig of the driving apparatus, reducing a space required for installation as compared with the related art assembly socket. In addition, through the combined action of the first sleeve 110, the clamp spring 170 and the fastening ring 180, the clamp spring 170 is tightly matched with the first sleeve 110, the fastening ring 180 is tightly matched with the clamp spring 170, the concentricity of the fastening ring 180 and the first sleeve 110 is improved, the installation precision of the whole detection connector installed in a driving device clamp is improved, and therefore abrasion generated when the detection connector is matched with a product to be detected is reduced.

Preferably, the sleeve further comprises a fourth sleeve 210, an outer peripheral surface of the fourth sleeve 210 is in interference fit with an inner hole of the first sleeve 110, the fourth sleeve 210 is in contact with the first sleeve 110 to be conductive, an outer peripheral surface of the fourth sleeve 210 is in sliding connection with the inner hole of the third sleeve 150, a convex portion 211 is arranged on the outer peripheral surface of the fourth sleeve 210, and the convex portion 211 is in surface contact with the inner hole of the third sleeve 150 to be conductive. Through the effect of the fourth sleeve 210, the first sleeve 110, the second sleeve 140 and the third sleeve 150 are ensured to be conducted together, and the stability of the shielding effect is good.

Preferably, the second sleeve 140 is provided with a retainer ring 141, the retainer ring 141 and the second sleeve are of an integrated structure, the third sleeve 150 is provided with a third shaft shoulder 151, the third shaft shoulder 151 is in clearance fit with an inner hole of the second sleeve 140, and the inner diameter of the retainer ring 141 is smaller than the outer diameter of the third shaft shoulder 151. The third sleeve 150 is prevented from being removed from the second sleeve 140 by the cooperation of the retainer ring 141 and the third shoulder 151.

The second spring 220 is disposed between the first sleeve 110 and the third sleeve 150, and the second spring 220 applies a force in a direction in which the third sleeve 150 is away from the first sleeve 110. The second spring 220 not only has a buffering function, but also provides a pre-tightening force, so that the third sleeve 150 is not easy to be deflected up and down by external force, and the detection connector and a product to be tested are ensured to be matched in place during testing.

The first sleeve 110 is threadedly coupled to the second sleeve 140. Through the structure, the first sleeve 110 and the second sleeve 140 are assembled in a threaded state, and the risks of riveting deviation and overpressure can be prevented.

Preferably, the probe further comprises a fifth sleeve 230 and a second insulating column 240, the fifth sleeve 230 is connected with the third sleeve 150 by riveting, the second insulating column 240 is fixed in an inner hole of the fifth sleeve 230, the second insulating column 240 is provided with a second through hole (not shown), and the probe 160 is fixed in the second through hole.

The utility model discloses an equipment step as follows:

1. the first insulating column 120 is fitted into the first sleeve 110, and then the center pin 130 and the probe 160 are inserted into the first through hole 121 of the first insulating column 120;

2. the fourth sleeve 210 is arranged in the inner hole of the first sleeve 110 and is riveted in place by a jig;

3. fitting the second spring 220 on the outer circumferential surface of the fourth sleeve 210;

4. the second insulating column 240 is arranged in an inner hole of the fifth sleeve 230, and then the third sleeve 150 is riveted with the fifth sleeve 230 through a jig;

5. the third sleeve 150 is arranged in the second sleeve 140, the second sleeve 140 is connected with the first sleeve 110 in a threaded manner, and glue is applied after the threaded connection so as to prevent loosening and falling off;

6. the first spring 190 is installed on the outer circumferential surface of the first sleeve 110, and then the snap spring 170 is installed on the outer circumferential surface of the first sleeve 110;

7. and finally, sleeving the fastening ring 180 with the snap spring 170, and then, riveting the fastening ring 180 and the snap spring 170 in interference fit.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A probe connector, comprising:

a first sleeve having a first shoulder and a second shoulder;

the center needle is fixed in the first through hole;

the probe and the central needle are of an integrated structure;

2. A probe connector according to claim 1, further comprising a fourth sleeve, wherein one end of the fourth sleeve is fixedly connected to the first sleeve, one end of the fourth sleeve is electrically connected to the first sleeve, the other end of the fourth sleeve is slidably connected to the third sleeve, a protrusion is formed on an outer circumferential surface of the fourth sleeve, the protrusion is in surface contact with an inner wall of the third sleeve, and the third sleeve is electrically connected to the fourth sleeve.

3. A probe connector as in claim 2 wherein said second sleeve is provided with a retaining ring and said third sleeve is provided with a third shoulder, said third shoulder being in clearance fit with said second sleeve bore, said retaining ring having an inner diameter less than an outer diameter of said third shoulder.

4. A probe connector according to claim 3, further comprising a second spring disposed between said first sleeve and said third sleeve and biasing said third sleeve in a direction away from said first sleeve.

5. A probe connector as in claim 1 wherein said first sleeve is threadably connected to said second sleeve.

6. A probe connector according to any of claims 1-5, further comprising a fifth sleeve and a second insulating post, wherein the fifth sleeve is fixedly connected to the third sleeve, the second insulating post is fixed in the inner bore of the fifth sleeve, the second insulating post is provided with a second through hole, and the probe is fixed in the second through hole.