Connector assembly and coaxial connector

Abstract

A connector assembly and a coaxial connector, wherein the connector assembly comprises: a coaxial connector comprising a layer-by-layer nested outer limiting structure, a shell and a probe, the probe being capable of extending from a first end of the shell, and the shell being capable of extending from a first end of the outer limiting structure; a socket comprising a shell with a central hole, the shell being capable of moving in an axial direction to insert the probe into the central hole, and an outer peripheral surface of the shell being provided with a groove portion; the first end of the shell is provided with an elastic portion capable of moving in a direction perpendicular to the axial direction, and the elastic portion comprises a protruding portion for being engaged with the groove portion; and the outer limiting structure is used to directly or indirectly press the elastic portion so that the protruding portion is engaged with the groove portion. Through the scheme disclosed by the present application, the reliability of the positioning connection between the coaxial connector and the socket can be improved, and the service life of the device can be further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of coaxial connector technology, specifically to a connector assembly and a coaxial connector. Background Technology

[0002] Radio frequency (RF) circuits are widely used in mobile communications, satellite communications, cellular networks, and other fields. In practical applications, the circuit boards used to implement the antenna system function and the circuit boards used to implement the processor function in terminal equipment are generally electrically connected through sockets.

[0003] When the terminal device is in normal use, the front-end pins (e.g., pins for coupling the processor) and rear-end pins (e.g., pins for coupling the antenna system) of the socket are in a connected state, which can be regarded as a 0-ohm resistor connected in series between the antenna system and the processor. During the RF testing phase of the terminal device manufacturing process, the probes of the coaxial connector (also known as an RF test socket or adapter) are inserted into the socket. The internal switch of the socket automatically disconnects the connection between the front-end pins and the rear-end pins, switching to connecting the front-end pins and the probes. At this time, the coaxial connector can sample the processor's signal to test the RF performance (e.g., check the electrical characteristics of the high-frequency circuitry of the terminal device).

[0004] To ensure continuous and stable signal sampling by the coaxial connector during RF testing, the coaxial connector and socket need to be locked together to prevent unexpected relative movement. However, existing locking solutions are unreliable, affecting RF testing results. Utility Model Content

[0005] The technical problem solved by this invention is how to improve the reliability of the positioning connection between the coaxial connector and the socket.

[0006] To solve the above-mentioned technical problems, this utility model provides a connector assembly, including: a coaxial connector, comprising a housing having a receiving cavity, an outer limiting structure sleeved on the housing, and a probe housed in the receiving cavity, wherein a first end of the housing has a first opening exposing the receiving cavity, and the probe can extend out of the receiving cavity from the first opening; a first end of the outer limiting structure has a second opening for the housing to extend out; a socket, comprising a housing having a central hole, the housing having a third opening communicating with the central hole, the housing being axially movable to allow the probe to be inserted into the central hole from the third opening, and a groove being provided on the outer peripheral surface of the housing; an elastic portion being provided at a first end of the housing, the elastic portion being movable in a direction perpendicular to the axial direction, the elastic portion including a protrusion for engaging with the groove; wherein the outer limiting structure is used to directly or indirectly compress the elastic portion to allow the protrusion to engage with the groove.

[0007] Optionally, the outer peripheral surface of the cover near the first end is provided with an outwardly protruding enlarged diameter portion. In the direction perpendicular to the axial direction, the maximum size of the enlarged diameter portion is larger than the size of the first end of the outer limiting structure. The outer limiting structure can move along the axial direction to squeeze the enlarged diameter portion until the protrusion engages with the groove.

[0008] Optionally, in the engaged state, the end face of the outer limiting structure abuts against the substrate where the socket is located.

[0009] Optionally, along a direction perpendicular to the axial direction, the dimension of the first end of the outer limiting structure is larger than the maximum dimension of the socket.

[0010] Optionally, the inner surface of the outer limiting structure is parallel to the axial direction.

[0011] Optionally, the outer limiting structure includes a cylindrical structure near the first end, the cylindrical structure being used to cooperate with the enlarged diameter portion.

[0012] Optionally, the enlarged diameter portion includes a first segment extending along the axial direction and a second and third segment located on both sides of the first segment along the axial direction, wherein the second and third segments extend obliquely from the first segment toward the outer peripheral surface of the cover.

[0013] Optionally, the second segment is further away from the first opening along the axial direction than the third segment, wherein the slope of the second segment is greater than the slope of the third segment.

[0014] Optionally, the extension length of the second segment is greater than the extension length of the third segment.

[0015] Optionally, the coaxial connector further includes a bushing located between the probe and the housing, the bushing being provided with a clearance structure to avoid the elastic portion.

[0016] Optionally, the external limiting structure includes a sleeve portion or a clamp-like structure.

[0017] Optionally, during the movement of the housing along the axial direction, the protrusion and the socket do not interact with each other in a direction perpendicular to the axial direction.

[0018] Optionally, the protrusion includes a first surface facing the receiving cavity, and in the engaged state, the area of ​​the protrusion that contacts the groove is located on the first surface.

[0019] Optionally, the first surface is perpendicular to the axial direction.

[0020] Optionally, the groove includes a first groove wall that is closer to the third opening along the axial direction, and the first surface is parallel to the first groove wall.

[0021] Optionally, the extent to which the protrusion extends from the elastic portion is less than the extent to which the groove is recessed toward the central hole.

[0022] Optionally, the elastic portion includes multiple lobe main body portions spaced circumferentially along the cover, each of the main body portions being independently movable in a direction perpendicular to the axial direction.

[0023] To solve the above-mentioned technical problems, this utility model embodiment also provides a coaxial connector, including: a housing having a receiving cavity and a first opening at a first end exposing the receiving cavity, the housing being movable along the axial direction; an outer limiting structure sleeved on the housing and having a second opening at a first end for the housing to extend out; a probe housed in the receiving cavity and capable of extending out of the receiving cavity from the first opening; and an elastic part disposed at the first end of the housing and including a protrusion, the elastic part being movable in a direction perpendicular to the axial direction to change the size of the area where the protrusion is located; wherein, the outer limiting structure can directly or indirectly compress the elastic part to cause the elastic part to move.

[0024] Optionally, the diameter-expanding portion protrudes outward from the outer peripheral surface of the cover near the first end, and the outer limiting structure can move along the axial direction to compress the diameter-expanding portion and cause the elastic portion to move.

[0025] Optionally, the inner surface of the outer limiting structure is parallel to the axial direction.

[0026] Optionally, the outer limiting structure includes a cylindrical structure near the first end, the cylindrical structure being used to cooperate with the enlarged diameter portion.

[0027] Optionally, the enlarged diameter portion includes a first segment extending along the axial direction and a second and third segment located on both sides of the first segment along the axial direction, wherein the second and third segments extend obliquely from the first segment toward the outer peripheral surface of the cover.

[0028] Optionally, the second segment is further away from the first opening along the axial direction than the third segment, wherein the slope of the second segment is greater than the slope of the third segment.

[0029] Optionally, the extension length of the second segment is greater than the extension length of the third segment.

[0030] Optionally, the coaxial connector further includes a bushing located between the probe and the housing, the bushing being provided with a clearance structure to avoid the elastic portion.

[0031] Optionally, the external limiting structure includes a sleeve portion or a clamp-like structure.

[0032] Optionally, the protrusion includes a first surface facing the receiving cavity, the angle between the first surface and the axial direction ranging from (0, 90) degrees.

[0033] Optionally, the elastic portion includes multiple lobe main body portions spaced circumferentially along the cover, each of the main body portions being independently movable in a direction perpendicular to the axial direction.

[0034] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects:

[0035] The connector assembly provided in this application applies a direct or indirect action to the elastic portion through an external limiting structure, ensuring that the protrusion and slot remain reliably engaged during RF testing. This improves the reliability of the positioning connection between the coaxial connector and the socket.

[0036] In a connector assembly provided in this application, the elastic part has no contact or interference fit with the socket in its natural state (i.e., unfitted or pre-fitted state), reducing wear on the protrusion. An expanded diameter part is provided on the outer periphery of the housing. The outer limiting structure and the expanded diameter part cooperate to compress the elastic part to achieve a locking fit. During the entire fitting process, the outer limiting structure only rubs against the expanded diameter part. The larger size of the expanded diameter part makes it more wear-resistant, ensuring that the coaxial connector can still reliably connect and position with the socket even after long-term use. This extends the device's service life and improves the reliability of the positioning connection.

[0037] This application further provides a coaxial connector with an expanded diameter portion, wherein the elastic movement of the elastic portion is achieved through the cooperation of the outer limiting structure and the expanded diameter portion. Therefore, the coaxial connector experiences less wear or is more wear-resistant during engagement or disengagement with the socket, extending the service life of the coaxial connector. Even after long-term use, the coaxial connector can still reliably maintain its position and connection to the socket.

[0038] In another connector assembly provided in this application, the area where the protrusion and the slot effectively contact each other in the mating state is shifted from the tip of the protrusion in the prior art to the first surface of the protrusion facing the receiving cavity. This is beneficial for extending the service life of the device and improving the reliability of the positioning connection. Specifically, in the process of frequent mating and unmatting with the socket, the tip of the protrusion in the prior art coaxial connector gradually becomes dull, resulting in a shorter radial distance that the protrusion can penetrate into the slot, and thus it can no longer reliably engage with the slot. In contrast, this embodiment designs the first surface as the effective area for the protrusion and the slot to engage. Even if the tip of the protrusion is worn during long-term use of the coaxial connector, it will not affect the engagement reliability of the first surface and the slot, so that the coaxial connector can still reliably be positioned and connected to the socket under long-term use. Furthermore, even if the first surface wears during long-term use, this wear can indirectly increase the radial distance that the protrusion can penetrate into the slot, so that the first surface of the protrusion can still maintain surface contact with the slot. This is beneficial for improving the connection reliability of the coaxial connector and the socket, and further extends the service life of the coaxial connector.

[0039] This application further provides a coaxial connector with an angle between the first surface of the protrusion and the axial direction ranging from (0, 90) degrees. By specially designing the shape of the protrusion, the problem of mating failure caused by wear during long-term use of the coaxial connector can be effectively solved. Even if the coaxial connector is worn during mating or unmatting with the socket, the mating reliability will not be affected. Thus, the service life of the coaxial connector is extended, and the coaxial connector can still be reliably positioned and connected to the socket under long-term use. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of a connector assembly according to the first embodiment of the present invention;

[0041] Figure 2 yes Figure 1 A cross-sectional view of the structure shown;

[0042] Figure 3 yes Figure 1 A schematic diagram of a coaxial connector;

[0043] Figure 4 yes Figure 3 Schematic diagram of the inner and outer limiting structure;

[0044] Figure 5 yes Figure 3 A partial schematic diagram of the inner casing;

[0045] Figure 6 This is a schematic diagram of a coaxial connector and socket in their unengaged state;

[0046] Figure 7 yes Figure 6 A cross-sectional view of the structure shown;

[0047] Figures 8 to 10 It is a cross-sectional view of the mating process of the coaxial connector and socket;

[0048] Figure 11 This is a schematic diagram of a coaxial connector according to the second embodiment of the present invention;

[0049] Figure 12 This is a schematic diagram of a coaxial connector according to the third embodiment of this utility model;

[0050] Figure 13 yes Figure 12 Exploded view of region A in the middle;

[0051] Figure 14 It is a cross-sectional comparison of the mating area of ​​the coaxial connector and socket before and after wear;

[0052] Figure 15 A cross-sectional comparison of the mating areas of the coaxial connector and socket before and after wear in a variation of the third embodiment of this utility model. Detailed Implementation

[0053] As mentioned in the background section, existing positioning and connection schemes for coaxial connectors and sockets can cause significant damage to the coaxial connectors. Long-term use of these schemes is detrimental to the reliability of the positioning and connection of the coaxial connectors and sockets, thus affecting the RF testing results.

[0054] To address the aforementioned technical problems, this application provides a connector assembly, comprising: a coaxial connector including an outer limiting structure, a housing, and a probe nested from the outside in; the probe extending from a first end of the housing, and the housing extending from a first end of the outer limiting structure; a socket including a housing with a central hole; the housing being axially movable to allow the probe to be inserted into the central hole; a groove being provided on the outer peripheral surface of the housing; and an elastic portion being provided at the first end of the housing, movable in a direction perpendicular to the axial direction, the elastic portion including a protrusion for engaging with the groove; wherein the outer limiting structure is used to directly or indirectly compress the elastic portion to engage the protrusion with the groove.

[0055] Therefore, by applying direct or indirect action to the elastic portion through the external limiting structure, it is ensured that the protrusion and slot remain reliably engaged during RF testing. This improves the reliability of the positioning connection between the coaxial connector and the socket.

[0056] Specifically, the coaxial connector includes a sleeve, a housing, and a probe nested sequentially from the outside in. The sleeve is adapted to form an outer limiting structure, the housing has an elastic portion with a protrusion, and the socket has a groove that mates with the protrusion. One possible engagement method (denoted as Method 1) is that as the housing moves toward the socket, the elastic portion is pushed open by the socket and continues to abut against the socket as the housing moves until the protrusion is inserted into the groove. At this point, the elastic portion is still pushed open by the groove and slightly deformed outwards. Then, the sleeve presses down to push the outwardly deformed elastic portion back to a vertical position, thus locking the coaxial connector and socket. Another possible engagement method (denoted as Method 2) is that the sleeve always covers the elastic portion, and the housing and sleeve move synchronously toward the socket until the protrusion is inserted into the groove. Since the elastic portion is always held in place by the sleeve, locking the coaxial connector and socket is achieved simultaneously with the protrusion inserting into the groove.

[0057] Regarding method 1, the inventors of this application further discovered that during the entire locking process, the elastic part and the socket continuously rub against each other. With prolonged use, the protrusion wears severely, and even with the compression of the sleeve later on, it cannot reliably engage the groove. Furthermore, the sleeve continuously rubs against the entire outer circumference of the elastic part during the pressing process, resulting in significant frictional wear over time. Eventually, the sleeve may be unable to provide sufficient compressive force to the elastic part, further causing engagement failure and affecting the positioning and connection reliability of the coaxial connector and socket.

[0058] To address the aforementioned technical problems, this application provides a connector assembly, comprising: a coaxial connector including an outer limiting structure, a housing, and a probe nested from the outside in; the probe extending from a first end of the housing, and the housing extending from a first end of the outer limiting structure; a socket including a housing with a central hole; the housing being axially movable to allow the probe to be inserted into the central hole; a groove being provided on the outer peripheral surface of the housing; an elastic portion being provided at the first end of the housing, movable in a direction perpendicular to the axial direction; the elastic portion including a protrusion for engaging with the groove; an outwardly protruding enlarged diameter portion being provided on the outer peripheral surface of the housing near the first end; the maximum dimension of the enlarged diameter portion being larger than the dimension of the first end of the outer limiting structure in a direction perpendicular to the axial direction; and the outer limiting structure being axially movable to compress the enlarged diameter portion until the protrusion engages with the groove.

[0059] In this implementation scheme, the elastic part has no contact or interference fit with the socket in its natural state, reducing wear on the protrusion. An expanded diameter section is provided on the outer periphery of the housing. The outer limiting structure and the expanded diameter section cooperate to compress the elastic part and achieve a locking fit. Throughout the entire engagement process, the outer limiting structure only rubs against the expanded diameter section. The larger size of the expanded diameter section makes it more wear-resistant, ensuring that the coaxial connector can reliably connect and position with the socket even after long-term use. This extends the device's lifespan and improves the reliability of the positioning connection.

[0060] On the other hand, existing coaxial connectors generally achieve locking through the engagement of the protrusion tip and the groove. The inventors of this application further discovered that, in method 2, during the movement of the housing towards the socket, because the sleeve always covers the elastic part, the extent to which the elastic part is pushed open by the socket is significantly limited. The protrusion tip is pressed down with strong interference to the socket until it is embedded in the groove. This results in the protrusion tip gradually becoming dull during frequent engagement and disengagement with the socket, causing the radial distance the protrusion can penetrate into the groove to shorten, ultimately preventing reliable engagement with the groove.

[0061] To address the aforementioned technical problems, this application provides a connector assembly, comprising: a coaxial connector including a housing with a receiving cavity, an outer limiting structure sleeved on the housing, and a probe housed in the receiving cavity; the housing has a first opening at a first end exposing the receiving cavity, and the probe can extend out of the receiving cavity from the first opening; the outer limiting structure has a second opening at a first end for the housing to extend out; a socket including a housing with a central hole, the housing having a third opening communicating with the central hole, the housing being axially movable to allow the probe to be inserted into the central hole from the third opening, and the outer peripheral surface of the housing having a groove; the housing has an elastic portion at a first end, the elastic portion being movable in a direction perpendicular to the axial direction, the elastic portion including a protrusion for engaging with the groove; the outer limiting structure is used to directly or indirectly compress the elastic portion to engage the protrusion with the groove, the protrusion including a first surface facing the receiving cavity, and in the engaged state, the area of ​​the protrusion contacting the groove is located on the first surface.

[0062] By adopting this embodiment, the first surface is designed as the effective area for the engagement of the protrusion and the groove. Even if the tip of the protrusion wears down during long-term use of the coaxial connector, the engagement reliability between the first surface and the groove will not be affected. Thus, the coaxial connector can still reliably be positioned and connected to the socket under long-term use. Furthermore, even if the first surface wears down during long-term use, this wear can actually increase the distance the protrusion can penetrate into the groove radially, allowing the first surface of the protrusion to maintain surface contact with the groove. This is beneficial for improving the connection reliability of the coaxial connector and the socket, and further extends the service life of the coaxial connector.

[0063] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0064] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same parts in each drawing. The embodiments are merely illustrative, and of course, partial substitutions or combinations can be made to the structures shown in different embodiments. In the variations, descriptions of matters common to Embodiment 1 are omitted, and only the differences are described. In particular, the same effects produced by the same structure will not be mentioned one by one in each embodiment.

[0065] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0066] (Example 1)

[0067] Figure 1 This is a schematic diagram of a connector assembly 100 according to the first embodiment (referred to as Embodiment 1) of this utility model. Figure 2 yes Figure 1 A cross-sectional view of the structure shown.

[0068] The connector assembly 100 described in this embodiment may include a coaxial connector 1 and a socket 2. The coaxial connector 1 may be an inspection tool for checking the characteristics of the socket 2. The socket 2 may be used to establish an electrical connection between two independent circuit boards, thereby acting as a bridge between two circuit boards that cannot be directly connected, for example. For example, in a mobile terminal, a circuit board for implementing the antenna system function and a circuit board for implementing the processor function can be electrically connected through the socket 2. The socket 2 receives high-frequency signals from the antenna system and transmits them to the processor.

[0069] The connector assembly 100 may further include a coaxial cable 101 for electrically connecting the coaxial connector 1 and a measuring instrument (not shown) at the rear end to deliver a sampled signal to the measuring instrument.

[0070] Next, combine Figures 1 to 10 The specific structures of coaxial connector 1 and socket 2, and their mating, are described in detail. For ease of description, in this embodiment, the lower part along the z-axis in the figure is referred to as the lower end or head end, and the upper part as the upper end or tail end. The direction perpendicular to the z-axis (i.e., the r-direction in the figure) can also be understood as radial.

[0071] Specifically, refer to Figure 1 and Figure 2 The coaxial connector 1 may include a probe 13, a bushing 16, a housing 12, an outer limiting structure 11, and a cap 18. The coaxial connector 1 extends generally along the axial direction z. In a direction perpendicular to the axial direction z (e.g., the r direction shown in the figure), the outer limiting structure 11, the housing 12, the bushing 16, and the probe 13 are nested from the outside to the inside, with the cap 18 located above the aforementioned nested structure and covering at least a portion of the tail end of the housing 12.

[0072] The probe 13 may include a plunger 131 made of conductive material, a helical spring 17, and a plunger sleeve 132. The plunger 131 has a pointed front end and a corresponding rear end along the axial direction z, and the rear end of the plunger 131 is inserted into the plunger sleeve 132 from below through the helical spring 17. The center conductor 102 of the coaxial cable 101 may be inserted through the opening of the cap 18 and soldered into the plunger sleeve 132, so that the center conductor 102 can pass through the plunger sleeve 132 and the helical spring 17 to form an electrically conductive state with the plunger 131.

[0073] Further, refer to Figure 6 and Figure 7 The socket 2 may include a housing 21 having a central hole 211. The housing 21 contains a grounding terminal (also called an external conductor) 213, a first internal terminal 214, and a second internal terminal 215. The second internal terminal 215 makes elastic contact with the first internal terminal 214 from below. The second internal terminal 215 contacts the first internal terminal 214 using its own elasticity and can be pushed downwards by a probe 13 (e.g., a plunger 131) to separate it from the first internal terminal 214. For example, the housing 21 may have a third opening 212 communicating with the central hole 211, and the housing 12 may move axially (z) to allow the probe 13 to be inserted into the central hole 211 through the third opening 212. In this example, one of the first internal terminal 214 and the second internal terminal 215 is adapted to form a preamplifier pin, and the other is adapted to form a postamplifier pin.

[0074] The housing 12 may be made of a conductive material and has a first end 12a and a second end 12b opposite each other along the axial direction z, wherein the dimension of the housing 12 near the first end 12a is smaller than the dimension near the second end 12b (for a housing 12 that is generally cylindrical as shown in Embodiment 1, the dimension may also be described in terms of diameter). The housing 12 may be hollow, and the hollow portion is adapted to form a receiving cavity 121 to accommodate the probe 13. The first end 12a of the housing 12 may have a first opening 122 exposing the receiving cavity 121, through which the probe 13 (e.g., the tip of a plunger 131) may extend out of the receiving cavity 121.

[0075] Furthermore, combined with Figure 5 The first end 12a of the cover 12 may be provided with an elastic portion 14, the elastic portion 14 including a protrusion 141 for engaging with a groove 22 provided around the outer periphery of the cover 21 (e.g. Figure 10 (As shown). For example, the groove 22 may be annular and specifically formed on the outer peripheral surface of the grounding terminal 213 of the socket 2.

[0076] The elastic part 14 can move along the r direction. For example, the elastic part 14 can be composed of a plurality of slits formed along the axial direction z at the first end 12a of the housing 12, so that it can be elastically displaced in the r direction orthogonal to the axial direction z.

[0077] As the elastic portion 14 moves along the r direction, the size of the area where the protrusion 141 is located changes accordingly. For example, the protrusion 141 is arranged around the elastic portion 14 and extends inward from the elastic portion 14 along the r direction. As the elastic portions 14 move towards each other along the r direction, the distance between the protrusions 141 located on both sides of the probe 13 along the r direction decreases accordingly. Thus, the elastic portion 14 and the protrusions 141 cooperate to form an openable and closable claw structure.

[0078] Furthermore, the bushing 16 may be made of an insulator, with the probe 13 housed in its central hole, and the bushing 16 containing the probe 13 is housed within the receiving cavity 121. In other words, the bushing 16 is located between the probe 13 and the housing 12.

[0079] refer to Figure 2 and Figure 7 The bushing 16 may be provided with a clearance structure 161 to avoid the elastic part 14. Specifically, the outer peripheral surface of the bushing 16 may be narrowed inward from the rear end to the front end to form a clearance structure 161 at the front end, so as to make way for the protrusion 141 of the elastic part 14 moving along the axial z and avoid interference with the protrusion 141.

[0080] Further, refer to Figures 1 to 4 The outer limiting structure 11 may include a cylindrical portion made of metal material, having a first end 11a and a second end 11b opposite each other along the axial direction z. The first end 11a of the outer limiting structure 11 has a second opening 111 for the cover 12 to extend out.

[0081] The diameter of the cylindrical portion is smaller the closer it is to the first end 11a of the outer limiting structure 11. The dimension L2 (e.g., diameter) of the first end 11a of the outer limiting structure 11 is the smallest compared to the dimensions of other parts of the outer limiting structure 11.

[0082] Further, refer to Figure 10 The first end 11a of the outer limiting structure 11 can be used to limit the outward expansion of the elastic part 14, so as to keep the coaxial connector 1 and the socket 2 in a mating state. The mating state refers to... Figure 10 The protrusion 141 shown is embedded in the groove 22. At this time, the coaxial connector 1 cannot disengage from the socket 2 along the axial direction z.

[0083] refer to Figures 1 to 10The outer peripheral surface of the cover 12 near the first end 12a may be provided with an outwardly protruding enlarged diameter portion 15. In the r direction, the maximum size L1 of the enlarged diameter portion 15 is greater than the size L2 of the first end 11a of the outer limiting structure 11. Considering that the enlarged diameter portion 15 can move along the r direction with the elastic portion 14, the maximum size L1 of the enlarged diameter portion 15 is variable. In the natural state (i.e., the state where the protrusion 141 is not engaged with the groove 22), the maximum size L1 of the enlarged diameter portion 15 (that is, the maximum diameter of the elastic portion 14) is greater than the size L2 of the first end 11a of the outer limiting structure 11, such as... Figure 8 As shown.

[0084] Furthermore, the outer limiting structure 11 can move along the axial direction z to compress the enlarged diameter portion 15 until the protrusion 141 engages with the groove portion 22, such as... Figure 10 As shown. At this time, the elastic part 14 is squeezed inward, causing the maximum size L1 of the expanded diameter part 15 to be slightly smaller than that in its natural state. The maximum size L1 of the expanded diameter part 15 is close to or equal to the size L2 of the first end 11a of the outer limiting structure 11.

[0085] For example, the enlarged diameter portion 15 can be located in the lower middle part of the elastic portion 14 along the axial direction z (i.e., closer to the protrusion 141). The enlarged diameter portion 15 causes the elastic portion 14, which is originally surrounded by multiple thin lobes, to thicken and bulge near the first end 12a of the cover 12. The thicker elastic portion 14 is correspondingly more wear-resistant, and the wear caused by the outer limiting structure 11 pressing the enlarged diameter portion 15 is almost negligible relative to the thickness of the enlarged diameter portion 15 along the r direction. Furthermore, the outwardly bulging enlarged diameter portion 15 makes it easier for the outer limiting structure 11 to press against the elastic portion 14, which is beneficial for quickly achieving the engagement between the protrusion 141 and the groove 22. The enlarged diameter portion 15 and the elastic portion 14 can be integrally formed, or the enlarged diameter portion 15 can be attached to the outer surface of the elastic portion 14, for example, by means of glue, welding, etc.

[0086] When the cover 12 is self Figure 8 The indicated position moves downward along the axial direction z until the projections of the protrusion 141 and the groove 22 in the plane perpendicular to the axial direction z at least partially overlap (e.g. Figure 9 As shown, as the outer limiting structure 11 moves downward along the axial direction z, the expanded diameter portion 15 is squeezed by the first end 11a of the smaller outer limiting structure 11, causing the petal-shaped elastic portion 14 due to the slit to be squeezed inward (correspondingly, the size of the area where the protrusion 141 is located becomes smaller) until the protrusion 141 fits into the groove portion 22, as shown. Figure 10 As shown. The elastic part 14 from... Figure 9 The state change shown is as follows: Figure 10 The process shown can be similar to the chuck retracting.

[0087] Furthermore, during the movement of the housing 12 along the axial direction z, the protrusion 141 and the socket 2 have no interaction force in the r direction. That is, the housing 12 moves from... Figure 8 Move to the position shown Figure 9 In the position shown, the protrusion 141 is not inserted into the groove 22, and the coaxial connector 1 can move relatively easily (or almost without resistance) along the z-axis to disengage from the socket 2. Figure 9 , Figure 1 and Figure 2 The state of the connector assembly 100 shown can be called the pre-fitting state, in which the projections of the protrusion 141 and the groove 22 along the r direction at least partially overlap, but the two have a non-zero gap along the r direction.

[0088] Furthermore, during the downward movement of the protrusion 141 along the axial direction z with the housing 12 (e.g., from...), Figure 8 Move to the position shown Figure 9 During the period indicated, the outward displacement of the protrusion 141 along the r direction is almost negligible. Figure 9 After the pre-fitting state is shown, as the outer limiting structure 11 moves downward along the axial direction z, the expanded diameter portion 15 is squeezed, causing the elastic portion 14 to move inward along the r direction, realizing the fitting of the protrusion 141 and the groove 22. The connector assembly 100 is then in the position shown. Figure 10 The shown is the engagement state. In the engagement state, the protrusion 141 and the socket 2 can have an interaction force in the r direction, and the protrusion 141 firmly clamps the groove 22 under the action of the first end 11a of the outer limiting structure 11.

[0089] In some embodiments, such as Figure 9 In the pre-fitting state shown, the protrusion 141 and the socket 2 can interact along the axial direction z. For example, the protrusion 141 can abut against the lower groove wall forming the groove 22, and the groove wall can act as a stop to a certain extent, preventing the cover 12 from being pushed down excessively and damaging the internal structure of the socket 2. Furthermore, during the compression of the expanded diameter portion 15 by the first end 11a of the outer limiting structure 11, the elastic portion 14 has basically only displacement in the r direction and no displacement in the axial direction z, which is conducive to quickly and accurately completing the fitting of the protrusion 141 and the groove 22.

[0090] In a specific implementation, continue to refer to Figure 10 The socket 2 can be soldered to the substrate 3. Specifically, the substrate 3 can be, for example, a printed circuit board (PCB), on which electronic devices for implementing various functions of the terminal device are integrated. For example, a processor (e.g., a circuit board for implementing processor functions) and an antenna system (e.g., a circuit board for implementing antenna system functions) are integrated on the substrate 3, and the socket 2 is used to electrically connect the processor and the antenna system.

[0091] Furthermore, in the mating state, the end face 112 of the outer limiting structure 11 can abut against the substrate 3. In other words, along the r direction, the dimension L2 of the first end 11a of the outer limiting structure 11 is greater than the maximum dimension L3 of the socket 2. For example, in the natural state, the maximum dimension L1 of the expanded diameter portion 15 > the dimension L2 of the first end 11a of the outer limiting structure 11 > the maximum dimension L3 of the socket 2.

[0092] since Figure 9 In the pre-fitting state shown, the first end 11a of the outer limiting structure 11 continues to move downward along the axial direction z, and the inner surface 113 of the outer limiting structure 11 first contacts the diameter-expanding portion 15. The outer limiting structure 11, on the one hand, presses the elastic portion 14 inward along the r direction, and on the other hand, continues to move downward along the axial direction z until the end face 112 of the outer limiting structure 11 abuts against the substrate 3, as shown. Figure 10 As shown. For socket 2, it is equivalent to being completely housed inside coaxial connector 1 via the second opening 111.

[0093] Therefore, in the mating state, the first end 11a of the outer limiting structure 11 completely covers the socket 2. During testing, the coaxial connector 1 is supported on the substrate 3, resulting in better positioning and connection reliability.

[0094] In a specific implementation, refer to Figure 2 and Figure 10 The inner surface 113 of the outer limiting structure 11 can be parallel to the axial direction z. Specifically, the cylindrical portion includes multiple cylindrical sections with different diameters along the axial direction z, and the cylindrical section closest to the first end 11a of the outer limiting structure 11 is referred to as the cylindrical structure 114.

[0095] Furthermore, the cylindrical structure 114 can be a straight cylinder extending along the axial direction z, for mating with the expanded diameter section 15. (See reference) Figure 10 The connector assembly 100 reaches the mating state mainly by the compression of the expanded diameter portion 15 by the cylindrical structure 114. Furthermore, the inner surface 113 of the outer limiting structure 11 (specifically the inner surface of the cylindrical structure 114) does not contact the elastic portion 14 or other parts of the housing 12 before contacting the expanded diameter portion 15. That is, the mutual wear between the outer limiting structure 11 and the housing 12 is concentrated at the moment of achieving the mating function.

[0096] Therefore, the outer limiting structure 11 is composed of multiple straight cylinders with different diameters. When sliding downwards, it encounters the expanded diameter section 15 and is instantly squeezed to achieve the locking of the protrusion 141 and the groove 22. The entire mating process has less contact time and contact area, reducing wear.

[0097] In a specific implementation, refer to Figures 5 to 10The enlarged diameter portion 15 may include: a first segment 151 extending along the axial direction z, and a second segment 152 and a third segment 153 located on both sides of the first segment 151 along the axial direction z. The second segment 152 is further away from the first opening 122 along the axial direction z than the third segment 153.

[0098] Specifically, the second segment 152 and the third segment 153 extend obliquely from the first segment 151 toward the outer peripheral surface of the casing 12. In this example, the extension directions of the first segment 151, the second segment 152 and the third segment 153 all refer to the extension direction of the outer surface of each segment.

[0099] For example, the first end 12a of the cover 12 splits into multiple lobes along the axial direction z, wherein each lobe extends downward along the axial direction z and expands downward at an angle along the direction r to form a second segment 152, then continues to extend downward along the axial direction z to form a first segment 151, and then continues to extend downward along the axial direction z and converges inward along the direction r to form a third segment 153. Further, a protrusion 141 is formed at the end of the third segment 153 that protrudes inward along the direction r.

[0100] Therefore, the first segment 151 is adapted to form the largest part of the expanded diameter portion 15, and cooperates with the outer limiting structure 11 to compress the elastic portion 14. Furthermore, the inclined design of the second segment 152 and the third segment 153 makes the outer peripheral surface of the first segment 151 and the cover 12 smoothly transition, and appropriately guides the outer limiting structure 11 to cooperate with the first segment 151 during the downward movement of the first end 11a of the outer limiting structure 11.

[0101] In some embodiments, the slope of the second segment 152 can be greater than the slope of the third segment 153. Specifically, the larger the angle between the line and the horizontal line, the greater the slope. In this example, the angle between the outer surface of the second segment 152 and the r direction is greater than the angle between the outer surface of the third segment 153 and the r direction. As a result, the slope of the outer surface of the expanded diameter portion 15 away from the first opening 122 is steeper, which helps to guide the first end 11a of the outer limiting structure 11 to slide down smoothly and avoids collisions at the junction of the second segment 152 and the first segment 151 that could cause stopping or damage.

[0102] Furthermore, the slope of the outer surface of the enlarged diameter portion 15 near the first opening 122 can be adapted to adjust the contact area between the outer limiting structure 11 and the first segment 151, balancing wear resistance, smooth sliding, and the squeezing effect on the elastic portion 14. For example, the length of the first segment 151 extending along the axial z-axis must be long enough to ensure that the squeezing force of the outer limiting structure 11 is effectively transmitted to the elastic portion 14, reliably locking the protrusion 141 in the position of the locking groove 22. However, the length of the first segment 151 extending along the axial z-axis cannot be too long, otherwise the contact wear between the outer limiting structure 11 and the enlarged diameter portion 15 during sliding will be too great. Therefore, the length of the first segment 151 extending along the axial z-axis can be controlled within a reasonable range by adjusting the slope of the third segment 153.

[0103] In some embodiments, the extension length of the second segment 152 may be greater than the extension length of the third segment 153. This is beneficial for improving the structural strength of the first segment 151 and also for better guiding function.

[0104] Furthermore, the inner surfaces of the first segment 151, the second segment 152, and the third segment 153 are all parallel to the axial direction z, so as to facilitate the movement of the probe 13 along the axial direction z.

[0105] In a typical application scenario, refer to Figures 6 to 10 The procedure of mounting the coaxial connector 1 onto the socket 2 is described. Figure 6 and Figure 7 This indicates the state before installation (also known as the unfitted state). At this time, the outer limiting structure 11 retracts upward along the axial direction z to the position where the restriction on the elastic part 14 is released.

[0106] The housing 12 is pressed down along the axial direction z, and the tip of the probe 13, which extends out of the receiving cavity 121 from the first opening 122, is inserted into the central hole 211 through the third opening 212, as follows. Figure 8 As shown. Continue pressing down on the cover 12, the elastic part 14 naturally incorporates the outer periphery of the grounding terminal 213 of the socket 2, until the lower end of the elastic part 14 along the axial direction z abuts against the lower groove wall of the groove forming portion 22 of the grounding terminal 213, as shown. Figure 9 As shown. During this period, the elastic portion 14 did not expand outwards substantially along the r direction. Figure 9 In the pre-engaged state shown, the space enclosed by the elastic part 14 partially covers the periphery of the grounding terminal 213, and the protrusion 141 aligns with the groove 22 but has not yet actually engaged. At this time, the head end of the plunger 131 pushes the second internal terminal 215 downward, causing the second internal terminal 215 to disconnect from the first internal terminal 214. Thus, the second internal terminal 215 forms a conductive state through the plunger 131, the helical spring 17, the plunger sleeve 132, and the central conductor 102 of the coaxial cable 101, and transmits signals using this path.

[0107] Then, the outer limiting structure 11 is moved further downward along the axial direction z. The first end 11a of the outer limiting structure 11 presses against the expanded diameter portion 15, causing the elastic portion 14 to move towards each other along the r direction. The protrusion 141, moving synchronously with the elastic portion 14, moves towards the groove portion 22 until it is engaged. The outer limiting structure 11 is pressed down further until the end face 113 of the outer limiting structure 11 abuts against the substrate 3, as shown. Figure 10As shown. At this time, the outer limiting structure 11 surrounds the outer periphery of the elastic part 14 and the expanded diameter part 15, and restricts the outward expansion of the elastic part 14 by continuously pressing the expanded diameter part 15. In this way, the outward expansion of the elastic part 14 is restricted, and even if a force is applied in the direction of the outer diameter, there will be no situation where the engagement with the groove part 22 is released. In addition, deformation or damage to the elastic part 14 can also be prevented.

[0108] To detach the coaxial detector 1 from the socket 2, the reverse process can be used: clamping the outer limiting structure 11 and pulling it upwards along the axial direction z. First, the outer limiting structure 11 moves upwards, releasing the squeezing effect on the expanded diameter portion 15, and the restriction on the outward movement of the elastic portion 14 is released. Thus, as the outer limiting structure 11 moves upwards, the cover 12 is driven to move upwards synchronously, the protrusion 141 disengages from the groove portion 22, and the probe 13 then disengages from the central hole 211. At this time, in the socket 2, the second internal terminal 215 uses its own elasticity to displace upwards, restoring the connection state with the first internal terminal 214.

[0109] Therefore, by adopting this embodiment, the elastic part 14 in the connector assembly 100 has no contact or interference fit with the socket 2 in its natural state (i.e., unfitted state or pre-fitted state), reducing wear on the protrusion 141. An expanded diameter part 15 is provided on the outer periphery of the housing 12. The outer limiting structure 11 and the expanded diameter part 15 cooperate to compress the elastic part 14 to achieve a fitted lock. During the entire fitting process, the outer limiting structure 11 only rubs against the expanded diameter part 15. The larger size of the expanded diameter part 15 makes it more wear-resistant, ensuring that the coaxial connector 1 can still reliably connect and position with the socket 2 even after long-term use. Thus, the coaxial connector 1 experiences less wear or is more wear-resistant during fitting or unfitting with the socket 2, extending the device's service life and improving the reliability of the positioning connection.

[0110] The mating fit between the groove 22 and the protrusion 141 helps improve test accuracy. Specifically, the movement of the coaxial connector 1 can be driven by a motor. During the test, the motor may also vibrate, causing the probe 13 to shake. The aforementioned mating fit can reduce vibration, alleviate the shaking of the probe 13 caused by motor vibration, and prevent relative displacement between the probe 13 and the socket 2 from affecting the test results.

[0111] (Example 2)

[0112] Figure 11 This is a schematic diagram of a coaxial connector 4 according to the second embodiment (referred to as embodiment 2) of this utility model.

[0113] In this embodiment, the main difference from Embodiment 1 is that the outer limiting structure 11 includes a clip-like structure 115. Specifically, in a plane perpendicular to the axial direction z, the clip-like structure 115 can clamp and squeeze the expanded diameter portion 15 from both sides, which can also cause the elastic portion 14 to move, thereby achieving the engagement of the protrusion 141 and the groove 22.

[0114] In this example, the expanded diameter portion 15 can protrude outward from opposite sides of the elastic portion 14 in a plane perpendicular to the axial direction z, instead of having an expanded diameter portion 15 protruding outward all around the elastic portion 14 as in Embodiment 1 described above. This saves material and reduces manufacturing costs.

[0115] (Example 3)

[0116] Figure 12 This is a schematic diagram of a coaxial connector 5 according to the third embodiment (referred to as Embodiment 3) of this utility model. Figure 13 yes Figure 12 Exploded view of region A in the middle.

[0117] In this embodiment, the main difference from Embodiment 1 is that the enlarged diameter portion 15 is omitted. Specifically, in Embodiment 1, the outer limiting structure 11 indirectly compresses the elastic portion 14 through the enlarged diameter portion 15, while in this embodiment, the outer limiting structure 51 directly compresses the elastic portion 14 to make the protrusion 141 engage with the groove 22. For example, the outer limiting structure 51 can be formed of a cylindrical structure 114, and the inner surface 113 of the outer limiting structure 51 (specifically the inner surface of the cylindrical structure 114) compresses the outer surface of the elastic portion 14 to keep the protrusion 141 in the state of being embedded in the groove 22.

[0118] Furthermore, during the movement of the coaxial connector 5 toward or away from the socket 2 in the z-direction, the outer limiting structure 51 always remains covered by the elastic portion 14 located at the first end 52a of the housing 52. That is, there is no relative movement between the outer limiting structure 51 and the elastic portion 14 in the z-direction. The first end 51a of the outer limiting structure 51 can always remain flush with the first end 52a of the housing 52.

[0119] Furthermore, the elastic portion 14 may include multi-lobed main body portions 144 arranged circumferentially along the cover 52, each main body portion 144 being able to move independently in the r direction. A non-zero gap may exist between adjacent main body portions 144. That is, each main body portion 144 of the elastic portion 14 can undergo slight relative movement in the r direction relative to the outer limiting structure 51 to achieve a flowering configuration at the first end 52a of the cover 52.

[0120] Furthermore, the protrusion 141 can be formed at the end of the main body 144. For example, as the outer limiting structure 51 and the cover 52 move synchronously toward the socket 2 in the z direction, when the protrusion 141 abuts against the socket 2, as the cover 52 continues to press down, the protrusion 141 is pushed open by the socket 2, and each main body 144 moves toward the outer limiting structure 51 in the r direction. Furthermore, under the restriction of the outer limiting structure 51, the range of movement of each main body 144 in the r direction is limited, for example, less than the range of free movement of each lobe of the main body of the elastic part 14 in the r direction when the cylindrical structure 114 is not pressed down in the above embodiment 1. Furthermore, each main body part 144 moving outward along the r direction presses against the outer limiting structure 51 and is correspondingly subjected to the reaction force of the outer limiting structure 51. Under the action of the reaction force, each main body part 144 tends to move inward along the r direction. As the outer limiting structure 51 and the cover 52 continue to synchronously press the protrusion 141 into the upper groove wall of the groove 22 (denoted as the first groove wall 221), the main body part 22 moves inward along the r direction under the aforementioned tendency, causing the protrusion 141 to embed into the groove 22 to achieve engagement and locking. Among them, the first groove wall 221 is the groove wall of the groove 22 that is closer to the third opening 212 along the z direction.

[0121] Further, refer to Figure 14 In view (a), the protrusion 141 may include a first surface 142 facing the receiving cavity 121. For example, the protrusion 141 may protrude from the body portion 144 along the r-direction toward the central axis of the housing 52, the protruding portion having a first surface 142 closer to the interior of the receiving cavity 121 along the z-direction and a bottom surface away from the receiving cavity 121 along the z-direction. The bottom surface is adapted to form a first end 52a of the housing 52. Furthermore, there may be an arc transition between the bottom surface and the first surface 142, the arc transition portion being adapted to form the tip of the protrusion.

[0122] Furthermore, in the engaged state, the area where the protrusion 141 contacts the groove 22 can be located on the first surface 142. That is, in the engaged state, the protrusion 141 and the groove 22 are in surface-to-surface contact, and the contact surface can specifically be the first surface 142 and the first groove wall 221.

[0123] In some embodiments, the angle between the first surface 142 and the z-direction can be within the range of (0, 90) degrees. For example, the first surface 142 can be tilted about 5 degrees relative to the z-direction to make the protrusion of the protrusion 141 from the main body 144 more gradual, the pressing process of the elastic part 14 smoother, and reduce the wear of the protrusion tip. Alternatively, the first surface 142 can be perpendicular to the z-direction. Thus, after the protrusion 141 is inserted into the groove 22, the contact area between the first surface 142 and the first groove wall 221 is substantially perpendicular to the z-direction, and the first groove wall 221 maximizes its function of preventing the protrusion 141 from moving along the z-direction, ensuring the connection reliability of the coaxial connector 5 and the socket 22. Yet another example is that the first surface 142 can be tilted about 45 degrees relative to the z-direction to balance the smoothness of the pressing of the elastic part 14 and the reliability of the mating connection.

[0124] In some embodiments, the first surface 142 may be parallel to the first groove wall 221. Thus, in the mating state, the first surface 142 can fully contact the first groove wall 221 to ensure the reliable connection between the coaxial connector 5 and the socket 22.

[0125] In some embodiments, the extent to which the protrusion 141 extends from the elastic portion 14 may be less than the extent to which the groove 22 is recessed toward the central hole 211. In other words, in the engaged state, a non-zero gap may exist between the tip of the protrusion along the r direction and the wall of the groove 22, and a non-zero gap gap may also exist between the lower groove wall of the groove 22 and the bottom surface of the protrusion 141, such as... Figure 14 As shown in view (b).

[0126] It should be noted that with the use of the coaxial connector 5, the protrusion 141 frequently engages with the slots 22 of different sockets 2, and the protrusion 141 will inevitably be worn. Correspondingly, the aforementioned gap may gradually decrease or even become zero, and the tip of the protrusion may be worn flat. However, since this embodiment designs the first surface 142 as the effective area for the engagement of the protrusion 141 and the slot 22, even if the tip of the protrusion is worn during long-term use of the coaxial connector 5, it will not affect the engagement reliability of the first surface 142 and the slot 22. Therefore, the coaxial connector 5 can still be reliably positioned and connected to the socket 2 under long-term use. Similarly, changes in the gap will not affect the connection reliability.

[0127] In a typical application scenario, refer to Figure 14 (b) The red dashed line indicates the engagement state of the elastic part 14 with the socket 2 when it is unworn or only slightly worn. Figure 14The engagement state shown in (a) indicates the engagement state of the elastic part 14 and the socket 2 with wear or severe wear, represented by the green dashed line. The red dotted line is used to help illustrate that the change in engagement position between the elastic part 14 and the socket 2 from the red dashed line to the green dashed line is due to the wear of the protrusion 141 by the value x. The value x is the equivalent wear amount of the protrusion 141 in the r direction, or simply the wear amount.

[0128] Furthermore, the first surface 142 may initially be curved or flat, but it wears down over time. For example, it may wear down from a curved surface to a flat surface. Or, if it was originally flat, the first surface 142 may gradually move downwards towards the bottom surface of the protrusion 141 as it wears down. See also Figure 14 As can be seen from (b), this wear can indirectly increase the distance that the protrusion 141 can penetrate into the groove 22 along the r direction, so that the first surface 142 of the protrusion 141 can still maintain surface contact with the groove 22. This is beneficial to improving the connection reliability of the coaxial connector 5 and the socket 2, and further extends the service life of the coaxial connector 5.

[0129] In a variation of Example 3, reference is made to... Figure 15 In variation (a), the main difference from embodiment 3 described above is that the socket 6 further includes a third surface 222 located between the third opening 212 and the first groove wall 221, and the inner surface of the elastic portion 14 includes a second surface 143 close to the first surface 142. In the mating state, the third surface 222 and the second surface 143 are in surface-to-surface contact. That is, in this variation, in the mating state, there are two contact areas between the coaxial connector 5 and the socket 6: the contact area formed by the first surface 142 and the first groove wall 221, and the contact area formed by the second surface 143 and the third surface 222. Multi-point contact is beneficial for further improving the connection reliability of the coaxial connector 5 and the socket 6.

[0130] Further, refer to Figure 15 (b) Even if the first surface 142 wears down during long-term use, this wear can indirectly increase the distance that the protrusion 141 can penetrate into the groove 22 along the r direction, so that the first surface 142 of the protrusion 141 can still maintain surface contact with the groove 22. Furthermore, even if the protrusion 141 is worn, the surface contact between the third surface 222 and the second surface 143 remains effective, and the elastic part 14 can still clamp the socket 6. Thus, the connection reliability between the coaxial connector 5 and the socket 2 is guaranteed.

[0131] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims. Attached image description:

[0133] 100 Connector Assembly

[0134] 101 coaxial cable

[0135] 102 Center Conductor

[0136] 1, 4, 5 coaxial connectors

[0137] 11, 51 External limiting structure

[0138] The first end of the external limiting structure of 11a and 51a

[0139] 11b The second end of the external limiting structure

[0140] 111 Second opening

[0141] 112 End face of the external limiting structure

[0142] 113 Inner surface of the external limiting structure

[0143] 114 Cylindrical structure

[0144] 115 Clip-like structure

[0145] 12, 52 casing

[0146] The first end of the 12a and 52a casings

[0147] 12b The second end of the casing

[0148] 121 Receiving cavity

[0149] 122 First Opening

[0150] 13 probes

[0151] 131 Plunger

[0152] 132 plunger sleeve

[0153] 14. Elastic part

[0154] 141 protuberance

[0155] 142 First Surface

[0156] 143 Second Surface

[0157] 144 Main Body

[0158] 15. Expanded Diameter Section

[0159] 151 First paragraph

[0160] 152 Second paragraph

[0161] 153 Third paragraph

[0162] 16 Bushing

[0163] 161 Avoidance Structure

[0164] 17. Coil Spring

[0165] 18 hats

[0166] 2, 6 sockets

[0167] 21. Outer shell

[0168] 211 Center Hole

[0169] 212 Third opening

[0170] 213 Grounding terminal

[0171] 214 First internal terminal

[0172] 215 Second Internal Terminal

[0173] 22. Groove

[0174] 221 First trench wall

[0175] 222 Third Surface

[0176] 3 substrate

[0177] z-axis

[0178] r is the direction perpendicular to the axis.

[0179] Maximum dimension of L1 expansion section

[0180] The dimensions of the first end of the L2 external limiting structure

[0181] Maximum size of L3 socket

[0182] x Wear

[0183] The gap between the bottom surface of the protrusion and the lower wall of the groove.

Claims

1. A connector assembly, comprising: A coaxial connector includes a housing with a receiving cavity, an outer limiting structure sleeved on the housing, and a probe housed in the receiving cavity. The first end of the housing has a first opening that exposes the receiving cavity, and the probe can extend out of the receiving cavity from the first opening. The first end of the outer limiting structure has a second opening that allows the housing to extend out. A socket includes a housing having a central hole, the housing having a third opening communicating with the central hole, the housing being axially movable to allow a probe to be inserted into the central hole through the third opening, and the outer peripheral surface of the housing having a groove. Its features are, The first end of the cover is provided with an elastic part, which can move in a direction perpendicular to the axis. The elastic part includes a protrusion for engaging with the groove. The outer limiting structure is used to directly or indirectly compress the elastic part so that the protrusion engages with the groove.

2. The connector assembly according to claim 1, characterized in that, The outer peripheral surface of the cover near the first end is provided with an outwardly protruding enlarged diameter portion. In the direction perpendicular to the axial direction, the maximum size of the enlarged diameter portion is greater than the size of the first end of the outer limiting structure. The outer limiting structure can move along the axial direction to compress the enlarged diameter portion until the protrusion engages with the groove portion.

3. The connector assembly according to claim 2, characterized in that, In the engaged state, the end face of the outer limiting structure abuts against the substrate on which the socket is located; and / or, in a direction perpendicular to the axial direction, the size of the first end of the outer limiting structure is greater than the maximum size of the socket.

4. The connector assembly according to claim 2, characterized in that, The inner surface of the outer limiting structure is parallel to the axial direction; and / or, the outer limiting structure includes a cylindrical structure near the first end, the cylindrical structure being used to mate with the enlarged diameter portion.

5. The connector assembly according to claim 2, characterized in that, The enlarged diameter portion includes a first segment extending along the axial direction and a second and a third segment located on both sides of the first segment along the axial direction, wherein the second and the third segments extend obliquely from the first segment toward the outer peripheral surface of the cover.

6. The connector assembly according to claim 5, characterized in that, The second segment is further away from the first opening along the axial direction than the third segment, wherein the slope of the second segment is greater than the slope of the third segment, and / or the extension length of the second segment is greater than the extension length of the third segment.

7. The connector assembly according to claim 1, characterized in that, The coaxial connector also includes a bushing located between the probe and the housing, the bushing being provided with a clearance structure to avoid the elastic portion.

8. The connector assembly according to claim 1, characterized in that, The external limiting structure includes a sleeve portion or a clamp-like structure.

9. The connector assembly according to claim 1, characterized in that, During the movement of the housing along the axial direction, the protrusion and the socket do not interact with each other in a direction perpendicular to the axial direction.

10. The connector assembly according to claim 1, characterized in that, The protrusion includes a first surface facing the receiving cavity, and in the engaged state, the area of ​​the protrusion that contacts the groove is located on the first surface.

11. The connector assembly according to claim 10, characterized in that, The first surface is perpendicular to the axial direction; and / or, the groove includes a first groove wall along the axial direction closer to the third opening, the first surface being parallel to the first groove wall.

12. The connector assembly according to claim 10, characterized in that, The extent to which the protrusion extends from the elastic portion is less than the extent to which the groove is recessed toward the central hole.

13. The connector assembly according to claim 1, characterized in that, The elastic part includes multiple lobe main body parts spaced circumferentially along the cover, each of which can move independently in a direction perpendicular to the axial direction.

14. A coaxial connector, characterized in that, include: A housing having a receiving cavity and a first opening at a first end exposing the receiving cavity, the housing being movable axially; An external limiting structure is fitted onto the cover and has a second opening at the first end for the cover to extend out. A probe is housed in the receiving cavity and can extend out of the receiving cavity from the first opening; An elastic part is disposed at the first end of the cover and includes a protrusion. The elastic part can move in a direction perpendicular to the axial direction to change the size of the area where the protrusion is located. The external limiting structure can directly or indirectly compress the elastic part to make the elastic part move.

15. The coaxial connector according to claim 14, characterized in that, Also includes: The diameter-expanding portion protrudes outward from the outer peripheral surface of the cover near the first end, and the outer limiting structure can move along the axial direction to compress the diameter-expanding portion and cause the elastic portion to move.

16. The coaxial connector according to claim 15, characterized in that, The inner surface of the outer limiting structure is parallel to the axial direction; and / or, the outer limiting structure includes a cylindrical structure near the first end, the cylindrical structure being used to mate with the enlarged diameter portion.

17. The coaxial connector according to claim 15, characterized in that, The enlarged diameter portion includes a first segment extending along the axial direction and a second and a third segment located on both sides of the first segment along the axial direction, wherein the second and the third segments extend obliquely from the first segment toward the outer peripheral surface of the cover.

18. The coaxial connector according to claim 17, characterized in that, The second segment is further away from the first opening along the axial direction than the third segment, wherein the slope of the second segment is greater than the slope of the third segment, and / or the extension length of the second segment is greater than the extension length of the third segment.

19. The coaxial connector according to claim 14, characterized in that, Also includes: A bushing, located between the probe and the housing, is provided with a clearance structure to avoid the elastic part.

20. The coaxial connector according to claim 14, characterized in that, The external limiting structure includes a sleeve portion or a clamp-like structure.

21. The coaxial connector according to claim 14, characterized in that, The protrusion includes a first surface facing the receiving cavity, the angle between the first surface and the axial direction ranging from (0, 90) degrees.

22. The coaxial connector according to claim 14, characterized in that, The elastic part includes multiple lobe main body parts spaced circumferentially along the cover, each of which can move independently in a direction perpendicular to the axial direction.

Images