Coaxial switch connector

Abstract

The application discloses a coaxial switch connector, comprising: a main body, which is formed with a receiving cavity and a hole for inserting a probe and communicating with the receiving cavity; a fixed terminal, which comprises a fixed terminal fixed segment fixed in the main body, a fixed terminal contact segment extended from the fixed terminal fixed segment and exposed to the receiving cavity, and a fixed terminal mating segment extended from the fixed terminal fixed segment and exposed to the outside of the main body; a movable terminal, which comprises a movable terminal fixed segment fixed in the main body, a movable terminal elastic segment extended from the movable terminal fixed segment and protruding into the receiving cavity, and a movable terminal mating segment extended from the movable terminal elastic segment and exposed to the outside of the main body; the probe is inserted into the receiving cavity through the hole, the movable terminal elastic segment is elastically deformed along a predetermined direction perpendicular to the insertion direction of the probe, and the movable terminal elastic segment is contacted or separated from the fixed terminal contact segment. It is beneficial to thin design.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of connectors, in particular to a coaxial switch connector. BACKGROUND

[0002] Please refer to Chinese Utility Model Patent CN204349134U, which discloses a coaxial connector capable of independently switching multiple signal paths. A main body (12) is formed with holes (34a-1, 34a-2) for inserting probes downward. Fixed terminals (22-1, 22-2) are fixed to the main body (12). Movable terminals (20-1, 20-2) include movable terminal fixing portions (42-1, 42-2) fixed to the main body (12), and plate spring portions (44-1, 44-2) extending from the movable terminal fixing portions (42-1, 42-2) toward the fixed terminals (22-1, 22-2) and bent so that central portions of the plate spring portions protrude upward and are pressed downward by the fixed terminals (22-1, 22-2), and the front ends contact the main body (12). The movable terminals (20-1, 20-2) are separated from each other.

[0003] However, the movable terminals of such coaxial connectors in the prior art are elastically deformed along the insertion and extraction direction of the probes after being pushed by the probes, so as to realize contact or disconnection with the fixed terminals. Thus, the movable terminals need a relatively long elastic displacement space in the insertion and extraction direction of the probes, which is very unfavorable for the overall thin design of the coaxial connector.

[0004] Therefore, it is necessary to design a new coaxial switch connector to make up for the above-mentioned defects in the prior art. SUMMARY

[0005] The purpose of the present application is to provide a coaxial switch connector which is beneficial to thin design.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A coaxial switch connector, comprising:

[0008] a main body formed with a receiving cavity and a hole for inserting a probe in communication with the receiving cavity;

[0009] a fixed terminal comprising a fixed terminal fixing segment fixed in the main body, a fixed terminal contact segment extended from the fixed terminal fixing segment and exposed to the receiving cavity, and a fixed terminal mating segment extended from the fixed terminal fixing segment and exposed to outside of the main body;

[0010] a movable terminal comprising a movable terminal fixing segment fixed in the main body, a movable terminal elastic segment extended from the movable terminal fixing segment and protruding into the receiving cavity, and a movable terminal mating segment extended from the movable terminal elastic segment and exposed to outside of the main body.

[0011] The probe is inserted into the accommodating cavity through the hole, the elastic section of the movable terminal is elastically deformed along a predetermined direction perpendicular to the insertion direction of the probe, and the elastic section of the movable terminal is contacted or separated from the contact section of the fixed terminal.

[0012] Further, the elastic section of the movable terminal comprises a first section and a second section which are integrally connected, a first contact is defined on the surface of the first section, and a second contact is defined on the surface of the second section, and the first contact and the second contact are simultaneously located on a circle with the center axis of the hole as the center.

[0013] Further, the elastic section of the movable terminal forms at least two points of contact with the probe.

[0014] Further, a positioning portion is further formed on the main body, and the positioning portion limits the probe along a direction perpendicular to the insertion direction of the probe.

[0015] Further, the positioning portion forms a contact surface which faces the accommodating cavity, the contact surface limits the probe along a direction perpendicular to the insertion direction of the probe, and the contact surface forms a surface contact or a line contact with the probe.

[0016] Further, the main body comprises an insulating body and an upper cover portion which is fixedly connected to the insulating body, the accommodating cavity is formed by the insulating body and the upper cover portion, and the hole is formed on the upper cover portion.

[0017] Further, a metal member is further included, the insulating body forms an upper surface and a lower surface which are opposite along the insertion and extraction direction of the probe, the metal member forms a peripheral wall which surrounds the accommodating cavity and is embedded in the insulating body, the peripheral wall at least partially exposes the upper surface, and the upper cover portion comprises a metal cover part which is attached to the peripheral wall which exposes the upper surface along the insertion direction of the probe.

[0018] Further, the metal member further comprises a bending portion which at least partially exposes two end surfaces of the insulating body in a first direction and forms an end surface portion, and the metal cover part comprises a limiting portion which is attached to the end surface portion.

[0019] Further, the insulating body forms an upper surface and a lower surface which are opposite along the insertion and extraction direction of the probe, the metal member comprises a bottom surface portion which exposes the lower surface, the limiting portion is further bent and extended to form a buckling portion, and the buckling portion buckles and is attached to the bottom surface portion.

[0020] Further, the insulating body forms an adjusting groove which is recessed downward from the upper surface at a position on the side of the positioning portion.

[0021] Compared with the prior art, the beneficial effect of this application is that the coaxial switch connector disclosed in this application is more conducive to thinner design. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the coaxial switch connector of this application.

[0023] Figure 2 yes Figure 1 The exploded perspective view of the coaxial switch connector shown here is a detailed perspective view of the upper cover after it has been separated from the insulating body.

[0024] Figure 3 yes Figure 1 The exploded perspective view of the coaxial switch connector shown here is a detailed perspective view of the upper cover and metal parts after they have been separated from the insulating body.

[0025] Figure 4 yes Figure 1 The diagram shows an exploded perspective view of the coaxial switch connector.

[0026] Figure 5 yes Figure 1 A three-dimensional diagram viewed from another angle.

[0027] Figure 6 yes Figure 2 A three-dimensional diagram viewed from another angle.

[0028] Figure 7 yes Figure 3 A three-dimensional diagram viewed from another angle.

[0029] Figure 8 It is self Figure 1 A cross-sectional view along line AA in the middle.

[0030] Figure 9 This is a top view of the coaxial switch connector of this application, and further, a top view showing the upper cover after it has been separated from the insulating body.

[0031] Figure 10 Is Figure 9 The diagram illustrates the state of the moving and fixed terminals after the probe is inserted, primarily to demonstrate the contact and engagement relationship between the probe, the moving terminal, the fixed terminal, and the positioning part. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] For the sake of accuracy of the entire description, all directions are defined with reference to the following: Figure 1 wherein: the direction in which the X axis lies is defined as the first direction (i.e. the length direction of the coaxial switch connector); the direction in which the Y axis lies is defined as the up-down direction (i.e. the plugging direction of the probe 6); and the direction in which the Z axis lies is defined as the second direction (i.e. the width direction of the coaxial switch connector).

[0034] Please refer to Figures 1 to 10 Fig. 1, which shows a coaxial switch connector disclosed in the present application, which comprises an insulating body 1, a first terminal set 3 fixed to the insulating body 1, a second terminal set 4 fixed to the insulating body 1, a metal piece 5 fixed to the insulating body 1, and an upper cover part 2 buckled to the insulating body 1 along the up-down direction. The upper cover part 2 is formed with a first hole 201 and a second hole 202 for the insertion of a probe 6 towards the downside.

[0035] The insulating body 1 is formed by injection molding of insulating plastic, and is formed with a first terminal region 11 and a second terminal region 12 arranged integrally along the first direction. The first terminal region 11 is formed with a first accommodating cavity 110 communicating with the first hole 201, and the second terminal region 12 is formed with a second accommodating cavity 120 communicating with the second hole 202. The first terminal set 3 is fixed to the first terminal region 11, and the second terminal set 4 is fixed to the second terminal region 12. The insulating body 1 is defined with an upper surface 101 and a lower surface 102 opposite along the plugging direction of the probe 6, and the first accommodating cavity 110 and the second accommodating cavity 120 are formed by the downward recess of the upper surface 101.

[0036] Please refer to Figure 3 and Figure 4 In the present application, the shapes and structures of the first terminal set 3 and the second terminal set 4 are exactly the same, and the first terminal set 3 is taken as an example for illustration. The first terminal set 3 comprises a first fixed terminal 31 and a first movable terminal 32. The first fixed terminal 31 comprises a first fixed terminal fixed segment 311 embedded and fixed in the insulating body 1, a first fixed terminal contact segment 312 extended from the first fixed terminal fixed segment 311 and exposed to the first accommodating cavity 110, and a first fixed terminal mating segment 313 extended from the first fixed terminal fixed segment 311 and protruding out of the insulating body 1 for corresponding electrical contact with a mating circuit board. The first movable terminal 32 comprises a first movable terminal fixed segment 321 embedded and fixed in the insulating body 1, a first movable terminal contact segment 322 extended from the first movable terminal fixed segment 321 and protruding into the first accommodating cavity 110, and a first movable terminal mating segment 323 extended from the first movable terminal fixed segment 321 and protruding out of the insulating body 1 for corresponding electrical contact with a mating circuit board.

[0037] In this application, both the first fixed terminal 31 and the first movable terminal 32 are formed by stamping and bending a metal plate, and the thickness direction of the first movable terminal contact section 322 is perpendicular to the vertical direction. The first movable terminal contact section 322 includes a straight plate-shaped first section 3221 and a straight plate-shaped second section 3222 connected to the first section 3221. Viewed from above, the first section 3221 and the second section 3222 form a generally L-shaped (or possibly V-shaped) structure. The first section 3221 is formed by extending and bending the first movable terminal fixed section 321, and the second section 3222 is formed by further bending and extending the first section 3221. The free end of the second section 3222 is in electrical contact with the first fixed terminal contact section 312.

[0038] The first moving terminal contact segment 322 is elastically deformable along a predetermined direction perpendicular to the vertical direction (which may refer to one or more directions perpendicular to the vertical direction), such as a first direction and / or a second direction. In this application, a first contact point (unlabeled) is defined on the surface of the first segment 3221, and a second contact point (unlabeled) is defined on the surface of the second segment 3222. The first contact point and the second contact point simultaneously fall on a circle centered on the central axis of the hole 11. The first moving terminal contact segment 322 achieves two-point contact with the probe 6 (see reference). Figure 10 (As shown). Of course, in other embodiments, the first segment 3221 and / or the second segment 3222 can also be designed as non-straight plates, for example, they can have a certain curvature, or each can be bent into multiple segments, so that the first moving terminal contact segment 322 and the probe 6 can achieve three-point contact or even more.

[0039] Please refer to Figures 2 to 4 and Figure 9 As shown, the insulating body 1 also includes a positioning part 13. A contact surface 131 is formed on the side of the positioning part 13 facing the first receiving cavity 110. A probe space 1310 is formed between the contact surface 131 and the first moving terminal contact section 322. When the head of the probe 6 passes through the first hole 201 and is inserted into the probe space 1310, the outer peripheral surface of the probe 6 simultaneously touches the contact surface 131, the surface of the first section 3221, and the surface of the first section 3221. The first moving terminal contact section 322 undergoes elastic deformation and breaks the electrical contact with the first fixed terminal contact section 312 to achieve a switching function (in this embodiment, when the probe 6 is not inserted, the fixed terminal and the moving terminal are normally closed in contact; when the probe 6 is inserted, the fixed terminal and the moving terminal are normally open and not in contact; the reverse is also possible). During this process, the contact surface 131 is used to limit and guide the insertion of the probe 6, preventing the probe 6 from deflecting at a large angle during insertion and affecting the switching function. In this application, the contact surface 131 forms a surface contact or a line contact with the probe 6.

[0040] Further, the insulating body 1 is formed with an adjusting groove 111 recessed downward from the upper surface 101 at the position of the positioning portion 13. The adjusting groove 111 is designed to make the thickness of the insulating plastic at the position of the positioning portion 13 uniform, so that the fluid plastic flows uniformly when the insulating body 1 is injection molded, the temperature difference of the fluid plastic during injection molding is adjusted, and the structure of the molded insulating body 1 is more stable, more firm, and has better flatness.

[0041] Please refer to Figures 2 to 8 As shown in the drawings, the metal piece 5 is formed by punching and bending a metal plate, and includes a peripheral wall portion 50 and a bent portion 53. The peripheral wall portion 50 is combined with the upper surface 101 of the insulating body 1, and includes a first peripheral wall 501 surrounding the first accommodating cavity 110 and a second peripheral wall 502 surrounding the second accommodating cavity 120. The first peripheral wall 501 and the second peripheral wall 502 are combined with the insulating body 1 and exposed to the upper surface 101 of the insulating body 1. The bent portion 53 is formed by bending downward from both ends of the peripheral wall portion 50 in the first direction, and includes an end surface portion 531 exposed to the opposite end surfaces 103 of the insulating body 1 in the first direction and a bottom surface portion 532 exposed to the lower surface 102 of the insulating body 1.

[0042] The upper cover portion 2 is composed of a metal cover member 211 and an insulating piece 212 by injection molding, and is assembled and buckled to the insulating body 1 in the insertion direction of the probe 6. Specifically, the metal cover member 211 is attached to the first peripheral wall 501 and the second peripheral wall 502, and further extends and bends at both ends in the first direction to form a limiting portion 211 and a buckling portion 212. The limiting portion 211 is attached to the end surface portion 531, and the buckling portion 212 is attached to the bottom surface portion 532. The assembly and fixation of the upper cover portion 2 and the insulating body 1 are achieved by the cooperation between the limiting portion 211, the buckling portion 212, the end surface portion 531, and the bottom surface portion 532. It should be noted that in this application, the insulating body 1, the metal cover member 211, and the insulating piece 212 are collectively referred to as the main body.

[0043] Please refer to Figures 2 to 8As shown, the metal piece 5 further comprises a partition 51 embedded and fixed to the insulating body 1, and the partition 51 is located between the first terminal set 3 and the second terminal set 4. Specifically, the partition 51 is formed by the connecting position of the first peripheral wall 501 and the second peripheral wall 502 extending in the insertion direction of the probe 6. In the second direction, the partition 51 extends from one end of the first accommodating cavity 110 and / or the second accommodating cavity 120 to the other end. In the insertion and extraction direction of the probe 6, the partition 51 extends from one end of the first accommodating cavity 110 and / or the second accommodating cavity 120 to the other end. In the first direction, the projection of the partition 51 completely covers the projection of the first accommodating cavity 110 and the projection of the second accommodating cavity 120. In addition, in the present application, the partition 51 is provided with two and is spaced apart in the first direction. The provision of the partition 51 can form sufficient electrical isolation between the first terminal set 3 and the second terminal set 4, so as to avoid signal crosstalk between the first terminal set 3 and the second terminal set 4 during the contact of each with the corresponding probe 6.

[0044] In addition, by providing the metal piece 5, the structural strength of the insulating body 1 can be increased, which is beneficial to thin design. Meanwhile, the abutting and buckling cooperation of the metal piece 5 and the metal cover part 211 can make the assembly and combination between the insulating body 1 and the upper cover part 2 more stable. The assembly tolerance and design tolerance can be more accurately controlled. The overall design size precision of the coaxial switch connector product is higher.

Claims

1. A coaxial switch connector, characterized by, The coaxial switch connector comprises: a main body formed with a receiving cavity and a hole for inserting a probe; a fixed terminal comprising a fixed terminal fixed segment fixed in the main body, a fixed terminal contact segment extended from the fixed terminal fixed segment and exposed to the receiving cavity, and a fixed terminal mating segment extended from the fixed terminal fixed segment and exposed to outside of the main body; a movable terminal comprising a movable terminal fixed segment fixed in the main body, a movable terminal elastic segment extended from the movable terminal fixed segment and protruding into the receiving cavity, and a movable terminal mating segment extended from the movable terminal elastic segment and exposed to outside of the main body; by inserting the probe into the receiving cavity through the hole, the movable terminal elastic segment is elastically deformed along a predetermined direction perpendicular to the direction of inserting the probe, and the movable terminal elastic segment is in contact with or separated from the fixed terminal contact segment; the main body comprises an insulating body, a metal piece and an upper cover part; the upper cover part is formed with a first hole and a second hole for inserting a probe, the insulating body is formed with a first terminal area and a second terminal area arranged along a first direction, the first terminal area is formed with a first receiving cavity communicating with the first hole, and the second terminal area is formed with a second receiving cavity communicating with the second hole; a first terminal group is provided with one fixed terminal and one movable terminal matched with the fixed terminal; a second terminal group is provided with one fixed terminal and one movable terminal matched with the fixed terminal; the first terminal group is fixed to the first terminal area, and the second terminal group is fixed to the second terminal area; the metal piece comprises a first peripheral wall, a second peripheral wall, a bending part and a partition piece integrally connected; the first peripheral wall and the second peripheral wall respectively correspond to one turn around the first receiving cavity and the second receiving cavity, are embedded in the insulating body and are exposed to the insulating body upwardly; the partition piece is formed by downwardly bending and extending from the first peripheral wall and / or the second peripheral wall and is correspondingly embedded and fixed in the insulating body, the partition piece is located between the first receiving cavity and the second receiving cavity and extends from one end of the first receiving cavity and / or the second receiving cavity to the other end along a second direction; the bending part is formed by downwardly bending and extending from both ends of the first peripheral wall and the second peripheral wall away from each other along the first direction, the bending part comprises an end face part and a bottom face part, the end face part is combined with the end faces of both ends of the insulating body along the first direction and is exposed to the end faces, and the bottom face part is exposed from the lower surface of the insulating body; the upper cover part is provided with a metal cover part, the metal cover part is attached to the upper surfaces of the first peripheral wall and the second peripheral wall, both ends of the metal cover part along the first direction are further extended to form a limiting part and a buckling part, the limiting part is correspondingly attached to the end face part, and the buckling part is correspondingly attached to the bottom face part.

2. The coaxial switch connector according to claim 1, wherein the movable terminal elastic segment comprises a first segment part in a straight plate shape extended from the movable terminal fixed segment and a second segment part in a straight plate shape connected with the first segment part; a free end of the second segment part is in electrical contact with the fixed terminal contact segment; a surface of the first segment part defines a first contact point in contact with the probe, and a surface of the second segment part defines a second contact point in contact with the probe; and the first contact point and the second contact point are respectively located at different positions in a circumferential direction of the probe.

3. The coaxial switch connector according to claim 2, wherein The first section and the second section form an L shape or a V shape when viewed from above the elastic section of the movable terminal.

4. The coaxial switch connector according to claim 1 or 2 or 3, wherein A positioning portion is further formed on the main body, and the positioning portion limits the probe in a direction perpendicular to the insertion direction of the probe.

5. The coaxial switch connector according to claim 4, wherein The positioning portion is formed with a contact surface facing the accommodation cavity, the contact surface limits the probe in a direction perpendicular to the insertion direction of the probe, and the contact surface forms a surface contact or a line contact with the probe.

6. The coaxial switch connector according to claim 4, wherein An adjusting groove is formed on the side of the positioning portion in the insulating body, and the adjusting groove is recessed downward from the upper surface.

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