Test probe for connector function detection

Abstract

The utility model discloses a test probe for connector function detection, which comprises a connecting main body, a head sleeve body and a connecting flange, and is characterized in that the first end of the head sleeve body is provided with an input connecting cavity, and the second end of the head sleeve body is sleeved on the connecting main body; the second end of the connecting main body is provided with an output connecting cavity, a Pogo Pi n center pin is fixed in the connecting main body in a penetrating manner, and the Pogo Pi n center pin is insulated and isolated from the connecting main body through an insulating medium; the first end of the Pogo Pi n center pin extends into the input connecting cavity, and the second end of the Pogo Pi n center pin extends into the output connecting cavity. According to the utility model, through the elastic floating design of the head sleeve body, the head sleeve body can move reversely under the counter-acting force of the connector to be tested, so that the head sleeve body claw sheets can be prevented from being excessively pressed, and meanwhile, the head sleeve body can be ensured to be fully contacted with the head sleeve body claw sheets of the connector to be tested. In addition, the connecting flange adopts an elastic floating design, so that the test probe can be prevented from excessively extruding the to-be-tested connector.

Description

Technical Field

[0001] The utility model belongs to the field of testing, and particularly relates to a test probe for detecting the functions of a connector. Background Art

[0002] The existing test probes have no floating design and are only suitable for manual testing. Since the connector to be tested is provided with a head sleeve body claw piece in contact with the head sleeve body and a center claw piece in contact with the center conductor on the rubber core, and a positioning convex ring for probe positioning is provided at the front end of the rubber core, excessive insertion or incorrect insertion of the probe when testing the connector to be tested will cause deformation and damage of the positioning convex ring. At the same time, the center claw piece may not be able to rebound to the initial state normally due to being over-expanded, and the head sleeve body claw piece also has the problem of being over-pressed and stuck with the rubber core or being over-deformed and unable to rebound. All of the above are quality hazards that the existing test probes cannot solve. Therefore, it is necessary to improve the structure of the test probe to avoid damaging the connector to be tested. Content of the Utility Model

[0003] Aiming at the deficiencies of the above-mentioned existing technologies, the technical problem to be solved by the utility model is to provide a test probe for detecting the functions of a connector.

[0004] To solve the above technical problem, the utility model provides the following technical solutions:

[0005] A test probe for detecting the functions of a connector includes a connection main body, a head sleeve body elastically connected to the first end of the connection main body, and a connection flange elastically connected to the second end of the connection main body. An input connection cavity is provided at the first end of the head sleeve body, and the second end is sleeved on the connection main body, and the first end of the connection main body extends into the input connection cavity; an output connection cavity is provided at the second end of the connection main body, and a Pogo Pin center pin is fixedly arranged through the connection main body, and the Pogo Pin center pin is connected to the connection main body through an insulating medium; the first end of the Pogo Pin center pin extends into the input connection cavity, and the second end extends into the output connection cavity.

[0006] Further, a probe mounting hole is axially arranged on the connection main body, and the Pogo Pin center pin is arranged in the probe mounting hole; the insulating medium includes a first insulator arranged at the first end of the probe mounting hole and a second insulator arranged at the second end of the probe mounting hole; the Pogo Pin center pin is an elastic probe, including a first probe part, a second probe part and a probe spring. The first probe part is arranged through the first insulator, the second probe part is arranged through the second insulator, and the first probe part and the second probe part are elastically connected through the probe spring.

[0007] Furthermore, a first convex portion is provided at the first end of the connecting body, and a second convex portion is provided at the second end of the connecting body. A first concave portion is formed between the first convex portion and the third convex portion; the headgear body is sleeved on the first concave portion, and an auxiliary spring is further sleeved on the first concave portion. The first end of the auxiliary spring is elastically abutted against the second end of the headgear body, and the second end is elastically abutted against the third convex portion. The headgear body is abutted against and limited by the first convex portion, thereby forming a floating guiding tolerance structure of the headgear body.

[0008] Furthermore, a third convex portion is provided in the middle of the connecting body. A second concave portion is formed between the second convex portion and the third convex portion; the connecting flange is sleeved on the second concave portion, and a main spring is further sleeved on the second concave portion. The first end of the main spring is elastically abutted against the third convex portion, and the second end is elastically abutted against the connecting flange. The connecting flange is abutted against and limited by the second convex portion, thereby forming a floating guiding tolerance structure of the connecting body.

[0009] Furthermore, the connecting body includes a first cylinder, a second cylinder, and a connecting ring. A first fixing hole is provided at the first end of the connecting ring, and the second end of the first cylinder is fixedly connected in the first fixing hole; a second fixing hole is provided at the second end of the connecting ring, and the first end of the second cylinder is fixedly connected in the second fixing hole;

[0010] The connecting ring is further provided with a connecting hole communicating the first fixing hole and the second fixing hole. The first fixing hole, the second fixing hole, and the connecting hole are coaxially arranged, and the aperture of the connecting hole is smaller than the apertures of the first fixing hole and the second fixing hole; a first mounting hole is provided in the first cylinder, and a second mounting hole is provided in the second cylinder. The first mounting hole and the second mounting hole are communicated through the connecting hole, thereby forming a probe mounting hole.

[0011] Furthermore, a first annular boss is provided at the first end of the first cylinder, and the first annular boss forms the first convex portion; a second annular boss is provided at the second end of the second cylinder, and the second annular boss forms the second convex portion; the outer diameter of the connecting ring is larger than the outer diameters of the first cylinder and the second cylinder, thereby forming the third convex portion.

[0012] Furthermore, both the first mounting hole and the second mounting hole are stepped holes. The first mounting hole includes a first large hole, a first small hole, and a first step surface. The first insulator is arranged in the first large hole and abutted against and limited by the first step surface; the second mounting hole includes a second large hole, a second small hole, and a second step surface. The second insulator is arranged in the second large hole and abutted against and limited by the second step surface.

[0013] Further, a first through hole is provided on the connecting flange, the second recess is inserted into the first through hole, an annular groove is formed at one end of the first through hole, and an annular limiting block is fixedly arranged in the annular groove; a second through hole is provided in the middle of the annular limiting block, the inner diameter of the second through hole is adapted to the outer diameter of the second recess, and the inner diameter of the first through hole is larger than the inner diameter of the second through hole.

[0014] Further, the input connection cavity adopts a structure in which trumpet holes and cylindrical holes are alternately arranged.

[0015] Further, the connector includes a plastic core, the plastic core is provided with a spring piece cavity, an inner metal structure is arranged in the spring piece cavity, and a plurality of central claw pieces are arranged on the inner metal structure along the circumferential direction; a probe through hole communicating with the spring piece cavity is provided in the middle of the front end of the plastic core, and a positioning convex ring is further provided at the front end of the plastic core; an outer metal structure is sleeved on the plastic core, and a plurality of head sleeve body claw pieces are arranged on the outer metal structure along the circumferential direction;

[0016] The input connection cavity includes a guiding section, a transition section, an abutting section and a buffering section arranged in sequence from the first end to the second end of the connection main body. The guiding section is a trumpet hole with a large outer diameter and a small inner diameter, and the inner diameter of the guiding section is adapted to the structure defined by the plurality of head sleeve body claw pieces in the open state; the transition section is a cylindrical hole, and the aperture of the transition section is the same as the inner diameter of the guiding section; the abutting section is a trumpet hole with a large outer diameter and a small inner diameter, the outer diameter of the abutting section is the same as the aperture of the transition section, and the inner diameter of the abutting section is adapted to the outer diameter of the positioning convex ring; the buffering section is a cylindrical hole, and the aperture of the buffering section is the same as the inner diameter of the abutting section.

[0017] In the present utility model, through the elastic floating design of the head sleeve body, the head sleeve body will move in the reverse direction under the reaction force of the connector to be tested, which can avoid excessive pressing of the head sleeve body claw pieces. At the same time, under the action of the spring, it is ensured that the head sleeve body is in full contact with the head sleeve body claw pieces of the connector to be tested. In addition, the connecting flange adopts an elastic floating design, which can prevent the test probe from excessively squeezing the connector to be tested. The elastic Pogo Pin center pin adopts an elastically contractible pogo pin form, which can also avoid excessive pressing of the central claw pieces and ensure full contact between the Pogo Pin center pin and the central claw pieces of the connector to be tested. The alternating design of the trumpet hole and the cylindrical hole in the input connection cavity not only realizes the yaw guiding function but also has the positioning function. Through the above elastic floating design, the problem of possible failure during the automatic connection of the test probe and the connector to be tested is solved, thereby realizing the automatic test ability, eliminating the need for manual testing, with a simple structure, reliable test performance, high detection efficiency and strong practicability. Description of the Drawings

[0018] The accompanying drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0019] Figure 1 It is a schematic cross-sectional view of a connector.

[0020] Figure 2 It is a schematic structural view of a preferred embodiment of a test probe for connector function detection of the present utility model after being connected to a connector to be tested.

[0021] Figure 3 is Figure 2 exploded view of.

[0022] Figure 4 is Figure 2 top view of.

[0023] Figure 5 is Figure 4 A-A cross-sectional view of.

[0024] Figure 6 It is a cross-sectional view after removing the center pin of the Pogo Pin, the insulating medium and the connector to be tested.

[0025] Figure 7 It is a cross-sectional view of the Pogo Pin center pin.

[0026] The reference numerals in the specification drawings are as follows:

[0027] Connection body - 100; First convex part - 101; Second convex part - 102; Third convex part - 103; First concave part - 104; Second concave part - 105; Output connection cavity - 106;

[0028] First cylinder - 110; First annular boss - 111; First large hole - 112; First small hole - 113; First step surface - 114;

[0029] Second cylinder - 120; Second annular boss - 121; Second large hole - 122; Second small hole - 123; Second step surface - 124;

[0030] Connection ring - 130; First fixing hole - 131; Second fixing hole - 132; Connection hole - 133;

[0031] First insulator - 140; Second insulator - 150; Auxiliary spring - 160; Main spring - 170;

[0032] Pogo Pin center pin - 200; First probe part - 210; First connection part - 211; First needle head - 212;

[0033] Third step surface - 213; Second probe part - 220; Second connecting part - 221; Second needle - 222; Fourth step surface - 223; First spring cavity - 224; Probe spring - 230;

[0034] Head cover body - 300; Input connection cavity - 310; Guide section - 311; Transition section - 312; Abutting section - 313; Buffer section - 314;

[0035] Connection flange - 400; First through hole - 410; Annular groove - 420; Annular limit block - 430; Second through hole - 431;

[0036] Connector - 900; Positioning convex ring - 901; Plastic core - 910; Shrapnel cavity - 911; Probe through hole - 912; Inner metal structure - 920; Central claw - 921; Outer metal structure - 930; Head cover body claw - 931. Specific embodiments

[0037] The following specific examples illustrate the implementation manners of the present utility model. The diagrams provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0038] Please refer to Figure 1 , the connector 900 includes a plastic core 910. The plastic core 910 is provided with a shrapnel cavity 911. An inner metal structure 920 is arranged in the shrapnel cavity 911. A plurality of central claws 921 are arranged on the inner metal structure 920 along the circumferential direction. A probe through hole 912 communicating with the shrapnel cavity 911 is arranged in the middle of the front end of the plastic core 910. A positioning convex ring 901 is further arranged at the front end of the plastic core 910. An outer metal structure 930 is sleeved on the plastic core 910. A plurality of head cover body claws 931 are arranged on the outer metal structure 930 along the circumferential direction.

[0039] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, A preferred embodiment of a test probe for connector function detection according to the present utility model includes a connection body 100, a head sleeve body 300 elastically connected to the first end of the connection body 100, and a connection flange 400 elastically connected to the second end of the connection body 100. The connection body 100, the head sleeve body 300, and the connection flange 400 are all made of metal. A first end of the head sleeve body 300 is provided with an input connection cavity 310, and a second end thereof is sleeved on the connection body 100, and a first end of the connection body 100 extends into the input connection cavity 310. A second end of the connection body 100 is provided with an output connection cavity 106. A Pogo Pin center pin 200 is fixedly disposed through the connection body 100. The Pogo Pin center pin 200 is connected to the connection body 100 through an insulating medium to achieve electrical insulation isolation between the Pogo Pin center pin 200 and the connection body 100. A first end of the Pogo Pin center pin 200 extends into the input connection cavity 310, thereby forming an input port for connecting to a connector 900 to be tested. A second end of the Pogo Pin center pin 200 extends into the output connection cavity 106, thereby forming an output port for connecting to a connector detection device.

[0040] Please refer to Figure 6 , The input connection cavity 310 adopts a structure in which trumpet holes and cylindrical holes are alternately arranged. Specifically, the input connection cavity 310 includes a guiding section 311, a transition section 312, an abutting section 313, and a buffering section 314 arranged in sequence from the first end to the second end of the connection body 100. The guiding section 311 is a trumpet hole with a larger outer diameter and a smaller inner diameter. The inner diameter of the guiding section 311 is adapted to the structure defined by the plurality of head sleeve body claw pieces 931 in the open state, so that the connector 900 can be guided by the guiding section 311 when the connector 900 is inserted obliquely, and the connector 900 can accurately extend into the transition section 312.

[0041] The transition section 312 is a cylindrical hole, and the aperture of the transition section 312 is the same as the inner diameter of the guiding section 311, so that after the connector 900 extends into the transition section 312, the head sleeve body claw pieces 931 still remain in the open state or are only slightly compressed.

[0042] The abutting section 313 is a flared hole with a larger outer diameter and a smaller inner diameter. The outer diameter of the abutting section 313 is the same as the diameter of the transition section 312, and the inner diameter of the abutting section 313 is adapted to the outer diameter of the positioning convex ring 901. Through the abutting section 313, the positioning convex ring 901 at the front end of the plastic core 910 can be guided, so that the positioning convex ring 901 accurately extends into the buffer section 314. And it can make the head sleeve body claw 931 push the head sleeve body 300 to move relatively to the third convex part 103 after contacting with the abutting section 313, thereby compressing the auxiliary spring 160. Through the elastic force of the auxiliary spring 160, the head sleeve body claw 931 and the head sleeve body 300 are elastically abutted. At this time, the deformation amplitude of the head sleeve body claw 931 is small, so that it can ensure good electrical contact between the head sleeve body claw 931 and the head sleeve body 300, and the head sleeve body claw 931 will not be excessively deformed.

[0043] The buffer section 314 is a cylindrical hole, and the diameter of the buffer section 314 is the same as the inner diameter of the abutting section 313. Since the positioning convex ring 901 extends into the buffer section 314, the head sleeve body claw 931 contacts the abutting section 313, so that the positioning convex ring 901 only extends into the buffer section 314 for a short distance, ensuring that the positioning convex ring 901 will not be excessively deformed. At this time, under the positioning action of the positioning convex ring 901, one end of the Pogo Pin center pin 200 can accurately extend into the probe through hole 912 and abut against the center claw 921, thereby realizing the electrical connection between the Pogo Pin center pin 200 and the center claw 921.

[0044] For the convenience of installing the Pogo Pin center pin 200 and ensuring the insulation between the Pogo Pin center pin 200 and the connection body 100, in this embodiment, the connection body 100 is provided with a probe installation hole along the axial direction, and the Pogo Pin center pin 200 is arranged in the probe installation hole; the insulating medium includes a first insulator 140 arranged at the first end of the probe installation hole and a second insulator 150 arranged at the second end of the probe installation hole.

[0045] Please refer to Figure 7, in order to prevent the central claw piece 921 from not being able to rebound normally due to excessive expansion, in this embodiment, the Pogo Pin center pin 200 adopts an elastic probe, including a first probe part 210, a second probe part 220 and a probe spring 230. The first probe part 210 is disposed in the first insulator 140, and the second probe part 220 is disposed in the second insulator 150. In this embodiment, both the first probe part 210 and the second probe part 220 are stepped. The first probe part 210 includes a first needle head 212 and a first connecting part 211. A third step surface 213 is formed between the first needle head 212 and the first connecting part 211, and the third step surface 213 abuts against and limits the first insulator 140. The second probe part 220 includes a second needle head 222 and a second connecting part 221. A fourth step surface 223 is formed between the second needle head 222 and the second connecting part 221, and the fourth step surface 223 abuts against and limits the second insulator 150.

[0046] The first probe part 210 and the second probe part 220 are elastically connected by a probe spring 230. In this embodiment, a first spring cavity 224 is provided at the first end of the second probe part 220, and the second end of the first probe part 210 is slidably disposed in the first spring cavity 224. The probe spring 230 is disposed in the first spring cavity 224, and the first end of the probe spring 230 elastically abuts against the second end of the first probe part 210, and the second end elastically abuts against the cavity wall of the first spring cavity 224, thereby realizing the elastic connection between the first probe part 210 and the second probe part 220. When the first needle head 212 of the first probe part 210 abuts against the central claw piece 921, the first needle head 212 will move into the first spring cavity 224 under the abutting force of the central claw piece 921 and compress the probe spring 230. Thus, under the elastic force of the probe spring 230, the first needle head 212 and the central claw piece 921 elastically abut against each other, ensuring good electrical connection between the Pogo Pin center pin 200 and the central claw piece 921, and not pressing the central claw piece 921 to cause large deformation.

[0047] Of course, a second spring cavity (not shown in the figure) may also be provided at the second end of the first probe part 210, and the first end of the second probe part 220 is slidably disposed in the second spring cavity; and the probe spring 230 is disposed in the second spring cavity, so that the first end of the probe spring 230 elastically abuts against the cavity wall of the second spring cavity, and the second end elastically abuts against the first end of the second probe part 220. Using the above structure can also ensure good electrical connection between the Pogo Pin center pin 200 and the central claw piece 921.

[0048] A first convex portion 101 is provided at the first end of the connection body 100, and a second convex portion 102 is provided at the second end of the connection body 100. A first concave portion 104 is formed between the first convex portion 101 and the third convex portion 103. The headrest body 300 is sleeved on the first concave portion 104, and an auxiliary spring 160 is also sleeved on the first concave portion 104. The first end of the auxiliary spring 160 is elastically abutted against the second end of the headrest body 300, and the second end is elastically abutted against the third convex portion 103. The headrest body 300 is abutted against and limited by the first convex portion 101, thereby forming a floating guiding tolerance structure of the headrest body 300. A third convex portion 103 is provided in the middle of the connection body 100, and a second concave portion 105 is formed between the second convex portion 102 and the third convex portion 103. The connection flange 400 is sleeved on the second concave portion 105, and a main spring 170 is also sleeved on the second concave portion 105. The first end of the main spring 170 is elastically abutted against the third convex portion 103, and the second end is elastically abutted against the connection flange 400. The connection flange 400 is abutted against and limited by the second convex portion 102, thereby forming a floating guiding tolerance structure of the connection body 100.

[0049] In this embodiment, the connection body 100 includes a first cylinder 110, a second cylinder 120, and a connection ring 130. A first fixing hole 131 is provided at the first end of the connection ring 130, and the second end of the first cylinder 110 is fixedly connected in the first fixing hole 131; a second fixing hole 132 is provided at the second end of the connection ring 130, and the first end of the second cylinder 120 is fixedly connected in the second fixing hole 132. The connection ring 130 is further provided with a connection hole 133 communicating the first fixing hole 131 and the second fixing hole 132. The first fixing hole 131, the second fixing hole 132, and the connection hole 133 are coaxially arranged, and the aperture of the connection hole 133 is smaller than the apertures of the first fixing hole 131 and the second fixing hole 132. A first installation hole is provided in the first cylinder 110, and a second installation hole is provided in the second cylinder 120. The first installation hole and the second installation hole are communicated through the connection hole 133, thereby forming a probe installation hole.

[0050] A first annular boss 111 is provided at the first end of the first cylinder 110, and the first annular boss 111 forms the first convex portion 101. A second annular boss 121 is provided at the second end of the second cylinder 120, and the second annular boss 121 forms the second convex portion 102. The outer diameter of the connection ring 130 is larger than the outer diameters of the first cylinder 110 and the second cylinder 120, thereby forming the third convex portion 103. The portion of the first cylinder 110 between the first annular boss 111 and the connection ring 130 forms the first concave portion 104, and the portion of the second cylinder 120 between the second annular boss 121 and the connection ring 130 forms the second concave portion 105.

[0051] To limit the Pogo Pin center pin 200 and prevent the Pogo Pin center pin 200 from disengaging from the probe mounting hole, in this embodiment, both the first mounting hole and the second mounting hole are stepped holes. The first mounting hole includes a first large hole 112, a first small hole 113, and a first step surface 114. The first insulator 140 is disposed in the first large hole 112 and abuts against the first step surface 114 for limiting. The second mounting hole includes a second large hole 122, a second small hole 123, and a second step surface 124. The second insulator 150 is disposed in the second large hole 122 and abuts against the second step surface 124 for limiting.

[0052] To reduce the wear between the connection body 100 and the connection flange 400, a first through hole 410 is provided on the connection flange 400. The second recess 105 passes through the first through hole 410. An annular groove 420 is formed at one end of the first through hole 410. An annular limiting block 430 is fixedly disposed in the annular groove 420. The annular limiting block 430 can be made of plastic material. A second through hole 431 is provided in the middle of the annular limiting block 430. The inner diameter of the second through hole 431 is adapted to the outer diameter of the second recess 105, and the inner diameter of the first through hole 410 is larger than the inner diameter of the second through hole 431. When the connection body 100 compresses the main spring 170 and moves, the connection body 100 only rubs against the plastic annular limiting block 430 and does not rub against the inner wall of the first through hole 410, thereby avoiding the wear caused by the mutual friction of two metal parts.

[0053] The working principle of this embodiment is as follows:

[0054] Please refer to Figures 1 to 7 , before the test, first fix the test probe on a test fixture (not shown in the figure) through the connection flange 400, and make the first end of the test probe face vertically downward, and place the front end of the connector under test 900 upward directly below the test probe. During the test, the test fixture drives the test probe to move downward, so that the front end of the connector under test 900 first extends into the guiding section 311. Since the outer end opening of the guiding section 311 is relatively large, even if the connector under test 900 is inserted obliquely, it can accurately extend into the transition section 312 through the guiding action of the guiding section 311.

[0055] Then, the positioning convex ring 901 of the connector 900 first passes through the transition section 312 and extends into the abutting section 313. Since the lower end opening of the abutting section 313 is relatively large, it can guide the positioning convex ring 901 to accurately extend into the buffer section 314. After that, the head sleeve body claw piece 931 passes through the transition section 312 and contacts the abutting section 313, and the head sleeve body 300 stops moving downward through the abutting section 313, so that the third convex part 103 compresses the auxiliary spring 160 downward. Through the elastic force of the auxiliary spring 160, the head sleeve body claw piece 931 elastically abuts against the head sleeve body 300. At this time, the deformation amplitude of the head sleeve body claw piece 931 is small and will not cause excessive deformation of the head sleeve body claw piece 931.

[0056] After that, under the positioning action of the positioning convex ring 901, the first needle head 212 of the Pogo Pin center pin 200 can accurately extend into the probe through hole 912 and abut against the center claw piece 921, so as to realize the electrical connection between the Pogo Pin center pin 200 and the center claw piece 921. Then, the first needle head 212 moves into the first spring cavity 224 under the abutting force of the center claw piece 921 and compresses the probe spring 230. Thus, under the elastic force of the probe spring 230, the first needle head 212 and the center claw piece 921 elastically abut. Since the first needle head 212 stops moving downward after abutting against the center claw piece 921, it will not cause large deformation of the center claw piece 921.

[0057] When the front end of the plastic core 910 abuts against the first end of the connection body 100, the connection body 100 as a whole can stop moving downward, and the connection flange 400 continues to move downward and compress the main spring 170. Thus, it can not only ensure good electrical contact between the head sleeve body claw piece 931 and the head sleeve body 300, and ensure good electrical connection between the Pogo Pin center pin 200 and the center claw piece 921, but also prevent the center claw piece 921, the head sleeve body claw piece 931 and the positioning convex ring 901 from being deformed due to excessive extrusion.

[0058] In this embodiment, through the elastic floating design of the headgear body 300, the headgear body 300 will move in the reverse direction under the reaction force of the connector under test 900, which can avoid excessive pressing on the headgear body claw 931. At the same time, under the action of the spring, the headgear body 300 is ensured to be in full contact with the headgear body claw 931 of the connector under test 900. In addition, the connection flange 400 adopts an elastic floating design, which can prevent the test probe from excessively squeezing the connector under test 900. The elastic Pogo Pin center pin 200 adopts an elastic probe, which can also avoid excessive pressing on the center claw 921 and ensure that the Pogo Pin center pin 200 is in full contact with the center claw 921 of the connector under test 900. The input connection cavity 310 adopts an alternating design of trumpet holes and cylindrical holes, which not only realizes the yaw guiding function but also has the positioning function. The problem of possible failure caused by the automatic connection of the test probe and the connector under test equipment is solved, thereby realizing the automatic test ability without manual testing.

[0059] The above embodiments only represent the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A test probe for connector function detection, characterized in that: It includes a connection body, a head sleeve body elastically connected to the first end of the connection body, and a connection flange elastically connected to the second end of the connection body; an input connection cavity is provided at the first end of the head sleeve body, the second end of which is sleeved on the connection body, and the first end of the connection body extends into the input connection cavity; an output connection cavity is provided at the second end of the connection body, and a Pogo Pin center pin is fixedly arranged through the connection body, and the Pogo Pin center pin is connected to the connection body through an insulating medium; the first end of the Pogo Pin center pin extends into the input connection cavity, and the second end extends into the output connection cavity.

2. The test probe for connector function detection according to claim 1, characterized in that: The connection body is axially provided with a probe mounting hole, and the Pogo Pin center pin is arranged in the probe mounting hole; the insulating medium includes a first insulator arranged at the first end of the probe mounting hole and a second insulator arranged at the second end of the probe mounting hole; the Pogo Pin center pin is an elastic probe, including a first probe part, a second probe part and a probe spring, the first probe part is arranged through the first insulator, the second probe part is arranged through the second insulator, and the first probe part and the second probe part are elastically connected through the probe spring.

3. The test probe for connector function detection according to claim 2, characterized in that: The first end of the connection body is provided with a first convex part, and the second end of the connection body is provided with a second convex part, and a first concave part is formed between the first convex part and the third convex part; the head sleeve body is sleeved on the first concave part, and an auxiliary spring is also sleeved on the first concave part, the first end of the auxiliary spring is elastically abutted against the second end of the head sleeve body, and the second end is elastically abutted against the third convex part, and the head sleeve body is abutted and limited by the first convex part, so as to form a floating guiding tolerance structure of the head sleeve body.

4. The test probe for connector function detection according to claim 3, wherein: The middle part of the connection body is provided with a third convex part, and a second concave part is formed between the second convex part and the third convex part; the connection flange is sleeved on the second concave part, and a main spring is also sleeved on the second concave part, the first end of the main spring is elastically abutted against the third convex part, and the second end is elastically abutted against the connection flange, and the connection flange is abutted and limited by the second convex part, so as to form a floating guiding tolerance structure of the connection body.

5. The test probe for connector function detection according to claim 4, wherein: The connection body includes a first cylinder, a second cylinder and a connection ring, the first end of the connection ring is provided with a first fixing hole, and the second end of the first cylinder is fixedly connected in the first fixing hole; the second end of the connection ring is provided with a second fixing hole, and the first end of the second cylinder is fixedly connected in the second fixing hole; The connection ring is also provided with a connection hole communicating the first fixing hole and the second fixing hole, the first fixing hole, the second fixing hole and the connection hole are coaxially arranged, and the aperture of the connection hole is smaller than the apertures of the first fixing hole and the second fixing hole; a first mounting hole is arranged in the first cylinder, a second mounting hole is arranged in the second cylinder, and the first mounting hole and the second mounting hole are communicated through the connection hole, so as to form a probe mounting hole.

6. The test probe for connector function detection according to claim 5, wherein: A first annular boss is provided at the first end of the first cylinder body, and the first annular boss forms a first convex part; a second annular boss is provided at the second end of the second cylinder body, and the second annular boss forms a second convex part; the outer diameter of the connecting ring is larger than the outer diameters of the first cylinder body and the second cylinder body, thereby forming a third convex part.

7. The test probe for connector function detection according to claim 6, characterized in that: Both the first mounting hole and the second mounting hole are stepped holes. The first mounting hole includes a first large hole, a first small hole, and a first stepped surface. The first insulator is disposed in the first large hole and abuts against the first stepped surface for limiting; the second mounting hole includes a second large hole, a second small hole, and a second stepped surface. The second insulator is disposed in the second large hole and abuts against the second stepped surface for limiting.

8. The test probe for connector function detection according to claim 4, characterized in that: A first through hole is provided on the connecting flange, the second concave part is inserted through the first through hole, an annular groove is formed at one end of the first through hole, and an annular limiting block is fixedly arranged in the annular groove; a second through hole is provided in the middle of the annular limiting block, the inner diameter of the second through hole is adapted to the outer diameter of the second concave part, and the inner diameter of the first through hole is larger than the inner diameter of the second through hole.

9. A test probe for connector function detection according to any one of claims 1 to 8, characterized in that: The input connection cavity adopts a structure in which trumpet holes and cylindrical holes are alternately arranged.

10. A test probe for connector function detection according to claim 9, characterized in that: The connector includes a plastic core. The plastic core is provided with a spring piece cavity, and an inner metal structure is arranged in the spring piece cavity. A plurality of central claw pieces are arranged on the inner metal structure along the circumferential direction; a probe through hole communicating with the spring piece cavity is provided in the middle of the front end of the plastic core, and a positioning convex ring is further provided at the front end of the plastic core; an outer metal structure is sleeved on the plastic core, and a plurality of head sleeve body claw pieces are arranged on the outer metal structure along the circumferential direction. The input connection cavity includes a guiding section, a transition section, an abutting section, and a buffering section arranged in sequence from the first end to the second end of the connection body. The guiding section is a trumpet hole with a large outer diameter and a small inner diameter, and the inner diameter of the guiding section is adapted to the structure defined by the plurality of head sleeve body claw pieces in the open state; the transition section is a cylindrical hole, and the aperture of the transition section is the same as the inner diameter of the guiding section; the abutting section is a trumpet hole with a large outer diameter and a small inner diameter, the outer diameter of the abutting section is the same as the aperture of the transition section, and the inner diameter of the abutting section is adapted to the outer diameter of the positioning convex ring; the buffering section is a cylindrical hole, and the aperture of the buffering section is the same as the inner diameter of the abutting section.

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