Coaxial connector

Abstract

The application discloses a coaxial connector with a mating hole for inserting an external probe, the coaxial connector is used for fixing to a circuit substrate, the coaxial connector comprises a body, a shell module fixed with the body, and a fixed terminal and a movable terminal assembled in the body and / or the shell module, the fixed terminal comprises a contact part and a mating foot, the movable terminal comprises a cantilever-shaped base, a mating foot formed by bending and extending from a longitudinal one end of the base, a contact part formed by extending from a longitudinal opposite end of the base to a direction close to the fixed terminal, and an abutting part connected to the contact part, the contact part of the movable terminal is used for mating with the contact part of the fixed terminal, the base of the movable terminal is at least partially exposed from the mating hole, the base of the movable terminal can be elastically deformed in a direction of plugging and unplugging of the external probe, the body is provided with a limiting block, after the external probe acts on the base of the movable terminal, the abutting part abuts against the limiting block and moves along the limiting block, and the contact part of the movable terminal is separated from the contact part of the fixed terminal.

Description

Technical Field

[0001] This application relates to a coaxial connector, and more particularly to a coaxial connector having fixed terminals and movable terminals that are in contact or separate from each other. Background Technology

[0002] In today's increasingly miniaturized electronic information field, devices such as mobile phones, tablets, and wireless LAN devices often require the switching function of coaxial connectors to freely switch between internal and external antennas. Additionally, these coaxial connectors are frequently mounted on circuit boards to connect external test heads to the circuit board for testing its high-frequency characteristics. As electronic information devices become smaller and smaller, the demand for these coaxial connectors is becoming increasingly widespread. It is well known that the smaller the form factor, the more difficult it is to implement the switching function. Therefore, the key technology for such coaxial connectors lies in how to solve the problems of switching failure and unreliable intermittent functionality within a miniaturized structure.

[0003] Traditional coaxial connectors typically consist of an insulating body, a movable terminal fixed within the insulating body, and a fixed terminal. The movable terminal contacts or disconnects from the fixed terminal through elastic deformation, forming an electrical switch function. This process relies entirely on the elastic deformation of the movable terminal itself to achieve contact or disconnection. Therefore, the movable terminal must not only provide electrical contact with the fixed terminal but also provide the restoring force needed to return to contact when disconnected. When miniaturizing the structure, ensuring both the contact stability between the movable and fixed terminals and the durability of the movable terminal's elastic deformation becomes a significant challenge in the industry.

[0004] In view of this, this application proposes a new coaxial connector. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application aims to provide a coaxial connector that, while ensuring a sufficiently miniaturized external size, maintains stable and reliable contact and disconnection performance between the movable terminal and the fixed terminal even after multiple operations.

[0006] This application is achieved through the following technical solution:

[0007] A coaxial connector having mating holes for insertion of external probes, the coaxial connector being used to secure to a circuit board.

[0008] The coaxial connector includes a body, a housing module fixed to the body, and fixed terminals and movable terminals correspondingly assembled within the body and / or the housing module.

[0009] The main body and the outer shell module together define a displacement space, and the movable terminal is at least partially located within the displacement space.

[0010] The fixed terminal includes a fixed terminal contact portion and a fixed terminal mating pin, and the fixed terminal mating pin is connected to the circuit board.

[0011] The movable terminal includes a movable terminal base, a movable terminal mating leg formed by bending and extending from one longitudinal end of the movable terminal base, and a movable terminal contact portion formed from the opposite longitudinal end of the movable terminal base. The movable terminal base is at least partially exposed from the mating hole, and the movable terminal base is elastically displaceable in the insertion and removal direction of the external probe.

[0012] The movable terminal contact portion is in normal contact with the fixed terminal contact portion.

[0013] The movable terminal base also has a stop portion formed at the opposite end in the longitudinal direction. After the external probe acts on the movable terminal base, the movable terminal base elastically displaces in the direction of insertion of the external probe. The stop portion abuts against the body and moves longitudinally along the movable terminal base. The movable terminal contact portion separates from the fixed terminal contact portion.

[0014] Furthermore, the movable terminal contact portion is located above the fixed terminal contact portion.

[0015] Furthermore, the fixed terminal contact portion forms an inner edge on the side away from the movable terminal mating foot, and the movable terminal base portion extends from the movable terminal mating foot toward the movable terminal contact portion, the movable terminal base portion passes over the fixed terminal contact portion and contacts the inner edge, and the body is also provided with a receiving cavity, the free end portion of the movable terminal base portion that passes over the fixed terminal contact portion is accommodated in the receiving cavity.

[0016] Furthermore, the abutting part is formed by the lower surface of the movable terminal base protruding downwards longitudinally relative to the other end. The body is provided with a limiting block. The abutting part is suspended above the limiting block. After the external probe acts on the movable terminal base, the abutting part slides on the limiting block.

[0017] Furthermore, the direction of movement of the abutting part against the body and moving longitudinally along the base of the movable terminal is horizontal.

[0018] Furthermore, the main body is provided with a limiting block, and the limiting block is provided with a guide ramp. After the external probe acts on the base of the movable terminal, the abutting part abuts against the guide ramp and slides and rises on the guide ramp, and the contact part of the movable terminal separates from the contact part of the fixed terminal.

[0019] Furthermore, the movable terminal contact portion and the fixed terminal contact portion are in surface contact. After the external probe acts on the base of the movable terminal, the movable terminal contact portion slides on the fixed terminal contact portion and then separates.

[0020] Furthermore, along the insertion and removal direction of the external probe, the contact position between the movable terminal contact and the fixed terminal contact is not lower than the highest point of the sliding position of the abutment on the guide slope.

[0021] Furthermore, the body extends to form a protrusion below the portion of the movable terminal base that exposes the mating hole, the upper surface of the protrusion is higher than the contact position between the movable terminal contact portion and the fixed terminal contact portion, and the upper surface of the protrusion is higher than the highest point of the sliding position of the abutment portion on the body.

[0022] Furthermore, the outer casing module includes an outer conductor made of conductive material and an insulating module made of insulating material that is fixed to the outer conductor. The insulating module and the body together define a displacement space. The movable terminal is at least partially located in the displacement space. The two longitudinal edges of the base of the movable terminal extend to both sides to form support arms. The support arms elastically abut against the lower surface of the insulating module along the pull-out direction of the external probe to form a simply supported structure.

[0023] Compared with the prior art, the movable terminal of the coaxial connector in this application includes an arc-shaped simply supported structure formed by the portion of the movable terminal base between the two support arms and the two support arms. After the housing module is assembled into the body, the extended ends of the two support arms abut against the insulating module. Since the arc-shaped simply supported structure generates a holding force on the insulating module, the insulating module generates a reaction force on the movable terminal, thereby ensuring stable contact between the movable terminal contact portion and the fixed terminal contact portion. In addition, the movable terminal includes a stop portion connected to the movable terminal contact portion. When an external probe acts on the movable terminal base, the movable terminal base drives the movable terminal contact portion to move. The stop portion abuts against the limiting block in the receiving cavity of the body and moves along the limiting block, thereby separating the movable terminal contact portion from the fixed terminal contact portion. This design provides better durability of the movable terminal's elastic deformation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the coaxial connector with external probe according to the first embodiment of this application;

[0025] Figure 2 yes Figure 1 The diagram shows a coaxial connector with an external probe from another perspective.

[0026] Figure 3 yes Figure 2An exploded perspective view of a coaxial connector with an external probe is shown.

[0027] Figure 4 yes Figure 3 A further exploded perspective view of the coaxial connector with external probes shown.

[0028] Figure 5 yes Figure 4 In the diagram, the external probe is not applied to the coaxial connector.

[0029] Figure 6 yes Figure 5 Exploded perspective view of the fixed terminal and the main body;

[0030] Figure 7-1 yes Figure 1 The cross-sectional view along the AA direction shows, specifically, the cross-sectional view before the external probe is inserted;

[0031] Figure 7-2 yes Figure 2 A cross-sectional view along the BB direction;

[0032] Figure 8 yes Figure 4 In the middle, a schematic diagram of the structure after the external probe acts on the coaxial connector;

[0033] Figure 9 yes Figure 8 Enlarged view of the circled area;

[0034] Figure 10 yes Figure 1 The cross-sectional view along the AA direction shows, specifically, the cross-sectional view with the external probe not inserted;

[0035] Figure 11 This is a perspective view of the second embodiment of the coaxial connector of this application, including the body, fixed terminal, and movable terminal. It mainly shows the state before the external probe is inserted, and the outer shell module has been removed.

[0036] Figure 12 yes Figure 11 A three-dimensional schematic diagram of the main body and fixed terminals;

[0037] Figure 13 yes Figure 11 The cross-sectional view along the CC direction further shows the state diagram after the outer shell module is combined with the body.

[0038] Figure 14 yes Figure 11 The cross-sectional view along the CC direction further shows both the state diagram after the outer shell module is combined with the body and the state diagram after the external probe is inserted.

[0039] Figure 15 This is a perspective view of the third embodiment of the coaxial connector of this application, including the body, fixed terminals, and movable terminals. It mainly shows the state before the external probe is inserted, and the outer shell module has been removed.

[0040] Figure 16 yes Figure 15 Diagram showing the combined state of the main body and the fixed terminals;

[0041] Figure 17 yes Figure 16 Exploded view of the main body and fixed terminals;

[0042] Figure 18 yes Figure 15 The cross-sectional view along the DD direction further shows the state diagram after the outer shell module is combined with the body.

[0043] Figure 19 yes Figure 15 The cross-sectional view along the DD direction further shows the state diagram after the shell module is combined with the body, and also shows the state diagram after the external probe is inserted. Detailed Implementation

[0044] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] Please see Figures 1 to 10 This application describes a coaxial connector 100 with an external probe 15, as described in the first embodiment. The coaxial connector 100 is used to fix to a circuit board (not shown). The coaxial connector 100 includes a body 11, a housing module 12 stacked and fixed above and below the body 11, and fixed terminals 13 and movable terminals 14 correspondingly fixed between the body 11 and the housing module 12. The fixed terminals 13 and movable terminals 14 are respectively assembled near the sides of the body 11. The movable terminals 14 elastically engage with the fixed terminals 13. The coaxial connector 100 can be soldered to the internal circuit boards of various electronic devices. The switching function between the movable terminals 14 and the fixed terminals 13 enables free switching between internal and external antennas. Additionally, it can be used to connect external test heads to the circuit board for testing the high-frequency characteristics of the circuit board.

[0046] In this application, the body 11 and the outer casing module 12 together define a displacement space 101, and the movable terminal 14 is at least partially located within the displacement space 101. The displacement space 101 defines an upper inner wall surface 1011 that is away from the circuit board along the insertion and removal direction of the external probe. Figure 7-2 As shown), the two support arms 144 abut against the upper inner wall surface 1011 along the pull-out direction of the external probe.

[0047] The body 11 is made of insulating material and includes a longitudinally extending body portion 111, two limiting portions 112 extending upward from opposite sides of the body portion 111, and two mounting portions 113 extending upward from other opposite sides of the body portion 111. Specifically, the two mounting portions 113 are located on opposite longitudinal sides of the body portion 111, and the two limiting portions 112 are located on opposite transverse sides of the body portion 111 perpendicular to the longitudinal direction. The body portion 111, the two limiting portions 112, and the two mounting portions 113 together form a receiving space 110. The receiving space 110 includes a first receiving space 1101 in the shape of a cuboid and two second receiving spaces 1102 located on opposite transverse sides of the first receiving space 1101. The two second receiving spaces 1102 are symmetrically arranged transversely. The first receiving space 1101 communicates with the two second receiving spaces 1102, and the sidewalls of the second receiving spaces 1102 are defined by the limiting portions 112. The main body 11 also includes a protrusion 114 extending upward from the bottom wall of the first receiving space 1101. The protrusion 114 is located in the middle of the first receiving space 1101 and is aligned laterally with the two second receiving spaces 1102. The main body 11 also includes two limiting posts 115 extending upward from the bottom wall of the first receiving space 1101. The two limiting posts 115 are located on both sides of the central longitudinal axis of the first receiving space 1101 and are symmetrically arranged laterally. The main body 11 also includes a receiving cavity 1103 recessed downward from the bottom wall of the first receiving space 1101. In the longitudinal direction, the receiving cavity 1103 and the two limiting posts 115 are located on both sides of the protrusion 114. A limiting block 1104 is provided inside the receiving cavity 1103. In the transverse direction, the limiting block 1104 is located in the middle of the receiving cavity 1103. In the longitudinal direction, the limiting block 1104 is located close to the protrusion 114 and connected to the side wall of the receiving cavity 1103. The two mounting portions 113 include a first mounting portion 116 and a second mounting portion 117. The first mounting portion 116 has a first mounting space 118, and the second mounting portion 117 has a second mounting space 119. A receiving cavity 1103 is disposed near the first mounting portion 116. A portion of the fixed terminal 13 is located within the receiving cavity 1103, and another portion of the fixed terminal 13 is located within the first mounting space 118, with its end connected to the circuit board. A portion of the movable terminal 14 is located within the first receiving space 1101 and the second receiving space 1102, and another portion of the movable terminal 14 is located within the second mounting space 119, with its end connected to the circuit board.

[0048] The outer casing module 12 includes an outer conductor 121 made of conductive material and an insulating module 122 made of insulating material, which is fixed to the outer conductor 121. The outer conductor 121 includes a flat outer conductor substrate 1211, a cylindrical portion 1212 that is drawn upward from the middle of the outer conductor substrate 1211 and is generally cylindrical, and a retaining portion 1213 formed by bending the opposite side edges of the outer conductor substrate 1211. In this embodiment, two retaining portions 1213 are formed on the opposite side edges of the outer conductor substrate 1211. The insulating module 122 includes an insulating base 1221 that is fixed to the lower surface of the outer conductor substrate 1211 and an insulating cylindrical portion 1222 that is fixed to and accommodated within the cylindrical portion 1212. An insertion hole 1220 is formed in the middle of the insulating module 122, extending vertically through the insulating cylinder 1222 and the insulating base 1221. The insertion hole 1220 allows the insertion of an external probe 15. After insertion, one end of the external probe 15 abuts against the movable terminal 14. The movable terminal 14 is pressed by the external probe 15, causing elastic deformation and thus separating from the fixed terminal 13. The insulating module 122 is injection molded to correspond with and be fixed to the outer conductor 121, forming the outer shell module 12. The outer shell module 12 is fixed to the body 11 from top to bottom by stacking. The insulating base 1221 is accommodated within the accommodating space 110 of the body 11 and is located above the movable terminal 14 and the fixed terminal 13. The retaining portion 1213 of the outer conductor 121 passes through the clearance spaces on both sides of the protrusion 1120 of the limiting portion 112 and is correspondingly retained on the lower surface of the body portion 111.

[0049] The fixed terminal 13 is formed by stamping and bending a metal plate. It includes a flat fixed terminal contact portion 131 and a fixed terminal mating foot 132 formed by bending one end of the fixed terminal contact portion 131 downward. The fixed terminal contact portion 131 is used to mate with the movable terminal 14, and the fixed terminal mating foot 132 is used to mate with the circuit board. The fixed terminal contact portion 131 is generally rectangular, and one side wall 16 of the rectangular frame has a recess 160 located in the middle of its side wall 16. After the fixed terminal 13 is assembled into the body 11, the fixed terminal contact portion 131 is located in the receiving cavity 1103. Each side wall of the fixed terminal contact portion 131 abuts against each side wall of the receiving cavity 1103. The limiting block 1104 in the receiving cavity 1103 is limited to the recess 160 of the one side wall 16 of the fixed terminal contact portion 131, and the fixed terminal mating foot 132 is located in the first mounting space 118.

[0050] The movable terminal 14 is formed by stamping and bending a metal sheet. It includes a movable terminal base 141 extending longitudinally, a movable terminal mating foot 142 formed by bending downward from one longitudinal end of the movable terminal base 141, and a movable terminal contact portion 143 formed by extending from the opposite longitudinal end of the movable terminal base 141 toward the fixed terminal 13. The movable terminal base 141 is cantilevered, and the movable terminal contact portion 143 is generally arc-shaped. The movable terminal 14 also includes two support arms 144 extending laterally from the two side edges of the movable terminal base 141. The portion of the movable terminal base 141 between the two support arms 144 and the two support arms 144 together form an arc-shaped structure, which forms a simply supported structure. The movable terminal 14 also includes an abutment portion 145 connected to the movable terminal contact portion 143. After the movable terminal 14 is assembled into the body 11, the base 141 of the movable terminal is suspended in the first receiving space 1101 and confined between the two limiting posts 115. The portion of the movable terminal base 141 between the two support arms 144 is suspended above the protrusion 114 in the first receiving space 1101. The protrusion 114 is mainly provided to prevent the movable terminal base 141 from being excessively pressed down. The movable terminal contact portion 143 is located in the first receiving space 1101 and is located above the fixed terminal contact portion 131. The abutment portion 145 connected to the movable terminal contact portion 143 is suspended above the limiting block 1104 in the receiving cavity 1103. The outer arc wall of the movable terminal contact portion 143 contacts the inner edge 17 of the side wall 16 with the recess 160 of the fixed terminal contact portion 131. The movable terminal mating foot 142 is located in the second mounting space 119. The extended ends 146 of the two support arms 144 are respectively located within the two second receiving spaces 1102. After the outer shell module 12 is assembled to the body 11, the extended ends 146 of the two support arms 144 abut against the insulating module 122. Since the simply supported structure formed by the portion of the movable terminal base 141 between the two support arms 144 and the two support arms 144 generates a holding force on the insulating module 122, the insulating module 122 generates a reaction force on the movable terminal 14, thereby ensuring stable contact between the movable terminal contact portion 143 and the fixed terminal contact portion 131. The portion of the movable terminal base 141 between the two support arms 144 protrudes from the mating hole 1220 for the external probe 15 to abut against. The movable terminal base 141 can be elastically displaced in the insertion and removal direction of the external probe 15.

[0051] In use, the external probe 15 is inserted from top to bottom through the mating hole 1220 and presses against the movable terminal base 141, thereby pressing the movable terminal base 141 downward. The movable terminal base 141, along with the movable terminal contact portion 143, moves downward together. At this time, the abutment portion 145 connected to the movable terminal contact portion 143 contacts the limiting block 1104 in the receiving cavity 1103 and moves along the limiting block 1104 towards the first mounting portion 116, thereby disconnecting the movable terminal contact portion 143 from the fixed terminal contact portion 131. After the external probe 15 is removed from the movable terminal base 141, due to the elasticity of the cantilevered movable terminal base 141 itself, the movable terminal base 141 returns to its original position, and the movable terminal contact portion 143 resumes contact with the fixed terminal contact portion 131. Due to the simply supported structure, the contact stability between the fixed terminal contact portion 131 and the movable terminal contact portion 143 can be maximized.

[0052] Please see Figures 11 to 14This is a coaxial connector with an external probe according to the second embodiment of this application. The coaxial connector of the second embodiment differs from the coaxial connector of the first embodiment in that: the body 11 is provided with a first receiving space 1101, the first receiving space 1101 is recessed downward from its bottom wall to form a receiving cavity 1103, the body 11 includes a limiting block 1104 protruding upward from the bottom wall of the receiving cavity 1103, the upper end surface of the limiting block 1104 is horizontal, and in the longitudinal direction, one side of the limiting block 1104 has a guide ramp 1105, the guide ramp 1105 is disposed toward the movable terminal 14. The fixed terminal 13 includes a flat fixed terminal contact portion 131 and a fixed terminal mating foot 132 formed by bending one end of the fixed terminal contact portion 131 downward. The fixed terminal contact portion 131 has a recessed portion 160 on one side edge away from the fixed terminal mating foot 132. The fixed terminal contact portion 131 is installed in the receiving cavity 1103, and the recessed portion 160 cooperates with the limiting block 1104. The movable terminal 14 includes a movable terminal base 141, a movable terminal mating foot 142 formed by bending downward from one longitudinal end of the movable terminal base 141, a movable terminal contact portion 143 formed by extending longitudinally from the other end of the movable terminal base 141 toward the fixed terminal 13, and an abutment portion 145 connected to the movable terminal contact portion 143. The movable terminal base 141 is cantilevered, and the movable terminal contact portion 143 is flat. When the external probe 15 is not acting on the movable terminal base 141, the flat movable terminal contact portion 143 is located above the flat fixed terminal contact portion 131 and the two are in contact with each other. The abutment portion 145 of the movable terminal 14... The guide ramp 1105 of the limiting block 1104 is positioned opposite to and at a certain distance from the guide ramp 1105. After the external probe 15 acts on the movable terminal base 141, the abutment part 145 contacts the guide ramp 1105 of the limiting block 1104 and moves along the guide ramp 1105 toward the first mounting part 116. At this time, the movable terminal contact part 143 disengages from the fixed terminal contact part 131. After the external probe 15 disengages from the movable terminal base 141, due to the elasticity of the cantilevered movable terminal base 141 itself, the movable terminal base 141 returns to its original position, and the movable terminal contact part 143 resumes contact with the fixed terminal contact part 131. The other structures of the coaxial connector in the second embodiment are the same as those in the first embodiment, and will not be described again here.

[0053] Please see Figures 15 to 19This is a coaxial connector with an external probe according to the third embodiment of this application. The coaxial connector of the third embodiment differs from the coaxial connector of the first embodiment in that: the body 11 has a first receiving space 1101, the first receiving space 1101 is recessed downward from its bottom wall to form a receiving cavity 1103, and the body 11 includes a limiting block 1104 protruding upward from the bottom wall of the receiving cavity 1103. The fixed terminal 13 includes a fixed terminal contact portion 131 in the shape of a flat plate and a fixed terminal mating foot 132 formed by bending downward from one end of the fixed terminal contact portion 131. The fixed terminal contact portion 131 is a rectangular frame, and the fixed terminal contact portion 131 is installed in the receiving cavity 1103 and sleeved on the limiting block 1104. The fixed terminal contact portion 131 has a recessed portion 160 formed from top to bottom on a side wall 16 away from the fixed terminal mating foot 132, and the limiting block 1104 has a guide ramp 1105 adjacent to the recessed portion 160. The movable terminal 14 includes a movable terminal base 141, a movable terminal mating foot 142 formed by bending downward from one longitudinal end of the movable terminal base 141, a movable terminal contact portion 143 formed by extending from the other longitudinal end of the movable terminal base 141 toward the fixed terminal 13, and an abutment portion 145 connected to the movable terminal contact portion 143. The movable terminal base 141 is cantilevered, and the movable terminal contact portion 143 is arc-shaped. When the external probe 15 is not acting on the movable terminal base 141, the movable terminal contact portion 143 is located above the fixed terminal contact portion 131 and in contact with it. The abutment portion 145 is located within the recess 160. Specifically... The outer arc wall of the movable terminal contact portion 143 contacts the side wall 16 of the fixed terminal 13 with a recessed portion 160. After the external probe 15 acts on the movable terminal base 141, the abutment portion 145 moves along the guide ramp 1105 of the limiting block 1104 toward the first mounting portion 116. At this time, the movable terminal contact portion 143 disengages from the fixed terminal contact portion 131. After the external probe 15 disengages from the movable terminal base 141, due to the elasticity of the cantilevered movable terminal base 141 itself, the movable terminal base 141 returns to its original position, and the movable terminal contact portion 143 resumes contact with the fixed terminal contact portion 131. The other structures of the coaxial connector in the third embodiment are the same as those in the first embodiment, and will not be described again here.

[0054] In this application, the movable terminal 14 includes a movable terminal base 141 located between two support arms 144, forming an arc-shaped simply supported structure together with the two support arms 144. After the outer shell module 12 is assembled to the body 11, the extended ends 146 of the two support arms 144 abut against the insulating module 122. Due to the abutting force generated by the arc-shaped simply supported structure on the insulating module 122, the insulating module 122 generates a reaction force on the movable terminal 14, thereby ensuring that the movable terminal contact portion 143 and the fixed terminal contact portion 13 are in contact. 1. Stable contact; In addition, the movable terminal 14 includes an abutment portion 145 connected to the movable terminal contact portion 143. When the external probe 15 acts on the movable terminal base 141, the movable terminal base 141 drives the movable terminal contact portion 143 to move. The abutment portion 145 abuts against the limiting block 1104 in the receiving cavity 1103 of the body 11 and moves along the limiting block 1104, thereby separating the movable terminal contact portion 143 from the fixed terminal contact portion 131. With this design, the elastic displacement of the movable terminal 14 has better durability.

[0055] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A coaxial connector having a mating hole for insertion of an external probe, the coaxial connector being used to fix to a circuit board. The coaxial connector includes a body, a housing module fixed to the body, and fixed terminals and movable terminals correspondingly assembled within the body and / or the housing module. The main body and the outer shell module together define a displacement space, and the movable terminal is at least partially located within the displacement space. The fixed terminal includes a fixed terminal contact portion and a fixed terminal mating pin, and the fixed terminal mating pin is connected to the circuit board. The movable terminal includes a movable terminal base, a movable terminal mating leg formed by bending and extending from one longitudinal end of the movable terminal base, and a movable terminal contact portion formed from the opposite longitudinal end of the movable terminal base. The movable terminal base is at least partially exposed from the mating hole, and the movable terminal base is elastically displaceable in the insertion and removal direction of the external probe. The movable terminal contact portion is in normal contact with the fixed terminal contact portion. Its features are: The base of the movable terminal also has a contact portion formed longitudinally opposite to the other end. The main body is provided with a limiting block. When the external probe acts on the base of the movable terminal, the base of the movable terminal elastically shifts in the direction of insertion of the external probe. The abutting part abuts against the limiting block and slides on the limiting block longitudinally along the base of the movable terminal. The contact part of the movable terminal separates from the contact part of the fixed terminal. The fixed terminal contact portion forms an inner edge on the side away from the movable terminal mating foot, and the base of the movable terminal contacts the inner edge; The outer casing module includes an outer conductor made of conductive material and an insulating module made of insulating material that is fixed to the outer conductor. The insulating module and the body together define a displacement space. The movable terminal is at least partially located in the displacement space. The two longitudinal edges of the base of the movable terminal extend to both sides to form support arms. The support arms elastically abut against the lower surface of the insulating module along the pull-out direction of the external probe to form a simply supported structure.

2. The coaxial connector according to claim 1, characterized in that, The movable terminal contact is located above the fixed terminal contact.

3. The coaxial connector according to claim 1, characterized in that, The body is also provided with a receiving cavity, and the free end portion of the movable terminal base that extends beyond the contact portion of the fixed terminal is accommodated in the receiving cavity.

4. The coaxial connector according to claim 1, characterized in that, The fixed terminal contact portion is generally in the shape of a rectangular frame, with the inner edge formed on one of the side walls of the rectangular frame.

5. The coaxial connector according to claim 4, characterized in that, A recess is formed on the sidewall that forms the inner edge, and the recess engages with the limiting block.

6. The coaxial connector according to claim 1, 2, 3, 4, or 5, characterized in that, The abutting part is formed by the lower surface of the movable terminal base protruding downwards from the opposite end. When the movable terminal contact part is in normal contact with the fixed terminal contact part, the abutting part is suspended above the limiting block.

7. The coaxial connector according to claim 1, 2, 3, 4, or 5, characterized in that, The moving direction of the abutting part against the limiting block and moving longitudinally along the base of the movable terminal is horizontal.

8. The coaxial connector according to claim 1, 2, 3, 4, or 5, characterized in that, The body extends below the portion of the movable terminal base that exposes the mating hole to form a protrusion. The upper surface of the protrusion is higher than the contact position between the movable terminal contact portion and the fixed terminal contact portion, and the upper surface of the protrusion is higher than the highest point of the sliding position of the abutment portion on the body.

9. A coaxial connector having a mating hole for insertion of an external probe, The coaxial connector includes a body, a housing module fixed to the body, and fixed terminals and movable terminals correspondingly assembled within the body and / or the housing module. The main body and the outer shell module together define a displacement space, and the movable terminal is at least partially located within the displacement space; The movable terminal includes a movable terminal base, a movable terminal mating leg formed by bending and extending from one longitudinal end of the movable terminal base, and a movable terminal contact portion formed from the opposite longitudinal end of the movable terminal base. The movable terminal base is at least partially exposed from the mating hole, and the movable terminal base is elastically displaceable in the insertion and removal direction of the external probe. The movable terminal contact portion is in normal contact with the fixed terminal. Its features are: The base of the movable terminal also has a contact portion formed longitudinally opposite to the other end. The main body is provided with a limiting block. When the external probe acts on the base of the movable terminal, the base of the movable terminal elastically shifts in the direction of insertion of the external probe. The abutting part abuts against the limiting block and slides on the limiting block longitudinally along the base of the movable terminal. The contact part of the movable terminal separates from the fixed terminal. The limiting block is provided with a guide ramp. After the external probe acts on the base of the movable terminal, the abutment part abuts against the guide ramp and slides and rises on the guide ramp, and the contact part of the movable terminal separates from the fixed terminal.

10. The coaxial connector according to claim 9, characterized in that, The movable terminal contact portion is located above the fixed terminal, and the abutment portion is formed by the lower surface of the movable terminal base protruding downwards relative to the other end.

11. The coaxial connector according to claim 9, characterized in that, The movable terminal contact portion is in surface contact with the fixed terminal. After the external probe acts on the base of the movable terminal, the movable terminal contact portion slides on the fixed terminal and then separates.

12. The coaxial connector according to claim 9, characterized in that, Along the insertion and removal direction of the external probe, the contact position between the movable terminal contact and the fixed terminal is not lower than the highest point of the sliding position of the abutment on the guide slope.

13. The coaxial connector according to claim 9, 10, 11, or 12, characterized in that, The body extends below the portion of the movable terminal base that exposes the mating hole to form a protrusion. The upper surface of the protrusion is higher than the contact position between the movable terminal contact portion and the fixed terminal, and the upper surface of the protrusion is higher than the highest point of the sliding position of the abutment portion on the body.

14. The coaxial connector according to claim 9, 10, 11, or 12, characterized in that, The outer casing module includes an outer conductor made of conductive material and an insulating module made of insulating material that is fixed to the outer conductor. The insulating module and the body together define a displacement space. The movable terminal is at least partially located in the displacement space. The two longitudinal edges of the base of the movable terminal extend to both sides to form support arms. The support arms elastically abut against the lower surface of the insulating module along the pull-out direction of the external probe to form a simply supported structure.

Images