Crystal head and connector assembly
By designing a crystal head structure with first and second elastic parts, the problems of small contact area and easy failure of the spring contact are solved, and more stable signal transmission and pluggability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-03-27
AI Technical Summary
The existing RJ45 crystal head has a small contact area between the spring and the contact point, which is prone to failure, resulting in problems such as reduced signal quality and loose contact.
Design a crystal head structure in which the spring includes first and second elastic parts. The first elastic part contacts the parallel surface of the contact surface, and the second elastic part is set at an angle to deform in coordination to increase the contact area and improve elasticity. Combined with the design of the shell and conductive probe, a stable connection is ensured.
The increased contact area improves signal quality and pluggability, prevents spring failure, and ensures stable signal transmission.
Smart Images
Figure CN121748846A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical connector technology, and more particularly to a crystal head and connector assembly. Background Technology
[0002] RJ45 is a standardized physical connector assembly consisting of a female connector and a crystal head, primarily used for Ethernet data signal transmission. The RJ45 female connector has eight parallel gold-plated pins, and the crystal head has eight blade contacts. After the crystal head is inserted into the female connector, the eight gold-plated pins and eight blade contacts make contact one-to-one, establishing a wired network connection between devices. The gold-plated pins include angled springs. The gold-plated pins contact the contacts through these springs, and the elastic contact improves the tightness of the connection. However, the contact area between the springs and the contacts is relatively small. Repeated insertion and removal, or exposure to air, can increase contact resistance, affecting signal quality. Furthermore, the springs can lose their elasticity due to repeated insertion and removal, resulting in a looser contact with the contacts. Summary of the Invention
[0003] One embodiment of the present invention aims to provide a crystal head and connector assembly that solves the problems of small contact area between the spring and the contact point and poor contact between the spring and the contact point.
[0004] One embodiment of the present invention adopts the following technical solution: A crystal head for connecting to a female connector, the female connector including a socket and a contact surface disposed within the socket, the crystal head comprising: A plug that is inserted into the socket, the plug including a mounting base; The spring includes a first elastic part, a second elastic part, and a support part arranged sequentially along a first direction. The support part is fixed to the mounting base. The first elastic part and the second elastic part are arranged at an angle. The first elastic part is planar and parallel to the contact surface. The first elastic part abuts against the contact surface.
[0005] In some embodiments, the spring sheet further includes a bent portion connected to the first elastic portion, the bent portion, the first elastic portion and the second elastic portion being arranged sequentially along the first direction and forming a groove shape with the slot facing away from the contact surface.
[0006] In some embodiments, the angle between the bent portion and the first elastic portion, and the angle between the second elastic portion and the first elastic portion, are both obtuse angles.
[0007] In some embodiments, the mounting base has two insertion holes, and the support portion includes a first pin and a second pin, which are respectively inserted into the two insertion holes.
[0008] In some embodiments, the first pin and the second pin are spaced apart and both extend along the first direction.
[0009] In some embodiments, the mounting base has a plurality of spring contacts arranged along a second direction, and the first pin and the second pin are arranged along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.
[0010] In some embodiments, the length of the first pin is greater than the length of the second pin, the mounting base is connected to a circuit board, the first pin extends out of the mounting base and is electrically connected to the circuit board.
[0011] In some embodiments, the first pins of all the spring contacts are located on the same side of the circuit board along the third direction; or, the first pins of a portion of the spring contacts are located on one side of the circuit board along the third direction, and the first pins of another portion of the spring contacts are located on the other side of the circuit board along the third direction, with the two portions of spring contacts alternately spaced along the second direction.
[0012] In some embodiments, the mounting base is provided with a plurality of the spring clips.
[0013] In some embodiments, the support portion is inserted into the mounting base.
[0014] In some embodiments, the plug further includes a housing fixedly connected to the mounting base, at least a portion of the spring contacts being housed within the housing, the first elastic portion being exposed outside the housing, and the housing being plugged into the socket.
[0015] In some embodiments, the housing is provided with a plurality of baffles, and a receiving groove is formed between adjacent baffles. The spring is received in the receiving groove. The housing is provided with an L-shaped opening, through which the first elastic part is exposed to the outside, and the height of the first elastic part is lower than the height of the baffle. The contact surface passes through the opening and abuts against the first elastic part.
[0016] In some embodiments, the housing has an opening communicating with the receiving groove, the opening being inserted into the outer periphery of the mounting base; or, the sidewall of the opening is engaged with the peripheral surface of the mounting base.
[0017] In some embodiments, the receiving groove is provided with a limiting platform, the limiting platform and the end face of the mounting base form a limiting groove, and the spring sheet further includes a limiting part disposed between the support part and the second elastic part, the limiting part being limited in the limiting groove.
[0018] In some embodiments, the outer side of the housing is provided with an elastic buckle, which engages with the side wall of the socket.
[0019] In some embodiments, the mounting base has a groove on the side opposite to the first elastic portion, the circuit board is mounted into the groove, and the spring extends out of the mounting base and is soldered to the pads of the circuit board.
[0020] A connector assembly includes a female socket and a crystal head as described in any of the preceding claims. The female socket includes a socket and a contact surface disposed within the socket. The plug is inserted into the socket. A first elastic portion is planar and parallel to the contact surface, and the first elastic portion abuts against the contact surface.
[0021] In some embodiments, the ratio of the width of the first elastic portion along the first direction to the width of the contact surface along the first direction is greater than or equal to 1 and less than or equal to 3.
[0022] In some embodiments, the female connector is fixed with a conductive probe, the conductive probe including a strip-shaped probe body and a protrusion provided on the probe body, the probe body being fixed to the side wall of the socket, and the top of the protrusion forming the contact surface.
[0023] In some embodiments, the sidewall of the socket is provided with a mounting groove, the probe body is accommodated in the mounting groove, the protrusion protrudes from the opening of the mounting groove, and the end of the probe body is embedded in the bottom wall of the socket.
[0024] In some embodiments, the side of the protrusion along the first direction serves as a guide surface connecting the top and the probe body.
[0025] Beneficial effects of the embodiments of the present invention: One embodiment of the present invention provides a crystal head and connector assembly. The spring contact is elastic, with a support portion at one end fixed to a mounting base. When the plug is inserted into the socket, the contact surface presses down on the first elastic portion, causing it to elastically deform and possess elastic restoring force, thus achieving contact with the contact surface. The first elastic portion is planar and parallel to the contact surface. When the first elastic portion abuts against the contact surface, there is surface contact, increasing the contact area and achieving a stable connection. This solves the problem of small contact area between the spring contact and the contact point in the prior art, ensuring signal quality. The second elastic portion is located on one side of the first elastic portion at an angle. When the first elastic portion is deformed by the contact surface, the second elastic portion deforms downwards accordingly. The deformation and elastic restoring force of the first and second elastic portions are superimposed, improving the overall elasticity of the spring contact and resulting in a tighter contact between the first elastic portion and the contact surface. Furthermore, the coordinated deformation of the first and second elastic portions effectively prevents spring contact failure, making the crystal head and module assembly more resistant to insertion and removal, and solving the problem of loose contact between the spring contact and the contact point. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the connector assembly after insertion according to a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the connector assembly before insertion according to a specific embodiment of the present invention; Figure 3 This is a front view of the connector assembly after insertion, provided in a specific embodiment of the present invention; Figure 4 yes Figure 3 AA section view; Figure 5 This is an exploded view of a crystal head provided by a specific embodiment of the present invention; Figure 6 This is a schematic diagram of the outer casing provided in a specific embodiment of the present invention; Figure 7 This is a schematic diagram of another crystal head provided by a specific embodiment of the present invention; Figure 8 This is a schematic diagram of the female connector and conductive probe provided in a specific embodiment of the present invention.
[0027] In the picture: 100. Crystal head; 110. Mounting base; 111. Socket; 112. Protrusion; 113. Groove; 120. Spring; 121. First elastic part; 122. Second elastic part; 123. Support part; 1231. First pin; 1232. Second pin; 124. Bending part; 125. Limiting part; 126. Connecting part; 130. Circuit board; 131. Solder pad; 140. Housing; 141. Barrier; 142. Receiving groove; 143. Opening; 144. Opening; 145. Bayonet; 146. Limiting platform; 147. Elastic buckle; 150. Limiting groove; 160. Plug; 200, female connector; 210, socket; 211, mounting groove; 212, bottom wall; 230, conductive probe; 231, probe body; 232, protrusion; 2321, contact surface; 2322, guide surface. Detailed Implementation
[0028] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] like Figures 1-8As shown, this embodiment provides a connector assembly, including a female socket 200 and a crystal head 100. The female socket 200 includes a socket 210 and a contact surface 2321 disposed within the socket 210.
[0032] like Figures 1-5 As shown, this embodiment also provides a crystal head, including a plug 160 and a spring contact 120. The plug 160 is inserted into the socket 210, and the plug 160 includes a mounting base 110. The spring contact 120 includes a first elastic portion 121, a second elastic portion 122, and a support portion 123 arranged sequentially along a first direction. The support portion 123 is fixed to the mounting base 110. The first elastic portion 121 and the second elastic portion 122 are arranged at an angle. The first elastic portion 121 is planar and parallel to the contact surface 2321, and the first elastic portion 121 abuts against the contact surface 2321. When the crystal head 100 and the female socket 200 are used together, the plug 160 is inserted into the socket 210, and the first elastic portion 121 abuts against the contact surface 2321.
[0033] The spring 120 is elastic, and its support portion 123 at one end is fixed to the mounting base 110. When the plug 160 is inserted into the socket 210, the contact surface 2321 presses down on the first elastic portion 121, causing the first elastic portion 121 to undergo elastic deformation and have elastic restoring force, thus achieving contact with the contact surface 2321. The first elastic portion 121 is planar and parallel to the contact surface 2321. When the first elastic portion 121 abuts against the contact surface 2321, the first elastic portion 121 and the contact surface 2321 are in surface contact, thereby increasing the contact area between the two. This solves the problem of the small contact area between the spring 120 and the contact in the prior art, ensuring signal quality. The larger area of stable connection can be compatible with all Ethernet devices (such as routers, switches, computers, etc.). The second elastic part 122 is located at an angle to one side of the first elastic part 121. When the first elastic part 121 is deformed by the contact surface 2321, the second elastic part 122 deforms downwards accordingly. The deformation and elastic recovery force of the first and second elastic parts 121 are superimposed, improving the overall elasticity of the spring 120 and making the contact between the first elastic part 121 and the contact surface 2321 tighter. Furthermore, the coordinated deformation of the first and second elastic parts 121 effectively prevents the spring 120 from failing, making the crystal head 100 and module assembly more resistant to insertion and removal, and solving the problem of loose contact between the spring 120 and the contact.
[0034] The spring piece 120 also includes a bent portion 124 connected to the first elastic portion 121. The bent portion 124, the first elastic portion 121, and the second elastic portion 122 are arranged sequentially along a first direction, forming a groove with the opening facing away from the contact surface 2321. The bent portion 124 and the second elastic portion 122 are located on both sides of the first elastic portion 121 along the first direction, and are both arranged at an angle to the first elastic portion 121. When the first elastic portion 121 is deformed by being pressed down by the contact surface 2321, the bent portion 124 and the second elastic portion 122 also deform downwards, so that the deformation and elastic recovery force of the bent portion 124, the first elastic portion 121, and the second elastic portion 122 are superimposed, further improving the overall elasticity of the spring piece 120, and making the contact between the first elastic portion 121 and the contact surface 2321 tighter. Furthermore, the bent portion 124 is located at the front end of the first elastic portion 121. During insertion, the bent portion 124 serves as a guide to the contact surface 2321, facilitating insertion.
[0035] like Figure 5 As shown, the angle between the bent portion 124 and the first elastic portion 121, and the angle between the second elastic portion 122 and the first elastic portion 121, are both obtuse angles. For example, the included angles are 100°, 120°, 135°, or 150°, which can effectively reduce the stress concentration of the spring piece 120, improve fatigue life and elastic reliability, and is more suitable for repeated insertion and removal conditions.
[0036] The mounting base 110 is provided with multiple spring contacts 120. In one embodiment, the mounting base 110 is provided with eight metal spring contacts 120, and the female base 200 is provided with eight conductive probes 230 forming a contact surface 2321. The eight spring contacts 120 and the eight contact surfaces 2321 are in close contact with each other to form eight independent conductive paths.
[0037] like Figure 2 As shown, the mounting base 110 has a groove 113 on the side opposite to the first elastic part 121. The circuit board 130 is installed in the groove 113, and the spring contacts 120 extend out of the mounting base 110 and are soldered to the pads 131 of the circuit board 130. During assembly, the eight spring contacts 120 are assembled with the circuit board 130 using SMT (Surface Mount Technology), and then the twisted pair is soldered to the circuit board 130 by hand. By controlling the SMT and hand solder joints, contact resistance is reduced, avoiding problems such as high resistance, reducing signal attenuation, and thus making signal transmission more stable, ensuring signal integrity, and avoiding signal reflection problems caused by impedance changes. The groove 113 serves to support the mounting circuit board 130, and it is fixed by soldering the spring contacts 120 to the pads 131 of the circuit board 130, thereby realizing the connection between the spring contacts 120, the circuit board 130, and the mounting base 110.
[0038] like Figure 5As shown, the support portion 123 is inserted into the mounting base 110, facilitating the assembly of the mounting base 110 and the spring piece 120. In one embodiment, the mounting base 110 has two insertion holes 111, and the support portion 123 includes a first pin 1231 and a second pin 1232. The first pin 1231 and the second pin 1232 are correspondingly inserted into the two insertion holes 111. By having the two pins correspondingly inserted into the two insertion holes 111, the connection reliability between the support portion 123 and the mounting base 110 is increased. The first pin 1231 and the second pin 1232 are spaced apart and both extend along a first direction. They are inserted into the mounting base 110 along the extension direction of the spring piece 120 itself. The axis of the spring piece 120 itself can serve as an assembly guide reference, enabling quick alignment and insertion into the insertion holes 111, which is beneficial for improving installation efficiency. The first elastic part 121 and the contact surface 2321 abut against each other in a third direction. The direction of force and deformation of the first elastic part 121 is perpendicular to the direction in which the spring piece 120 is inserted into the mounting base 110, so as to prevent the installation between the spring piece 120 and the mounting base 110 from being affected by the force on the first elastic part 121 and to prevent loosening.
[0039] When the mounting base 110 has multiple spring clips 120, the multiple spring clips 120 are arranged along the second direction, and the first pin 1231 and the second pin 1232 are arranged along the third direction. The first direction, the second direction and the third direction are perpendicular to each other, thus making the structure compact and the size small.
[0040] The length of the first pin 1231 is greater than the length of the second pin 1232. The mounting base 110 is connected to the circuit board 130. The first pin 1231 extends out of the mounting base 110 and is electrically connected to the circuit board 130. Only the first pin 1231 needs to be connected to the circuit board 130, which simplifies the structure.
[0041] like Figures 1-5 As shown, in one embodiment, the first pins 1231 of all spring contacts 120 are located on the same side of the circuit board 130 along a third direction. During soldering, the first pins 1231 of all spring contacts 120 are soldered to the circuit board 130 on one side only, avoiding double-sided soldering and making the operation more convenient. Figure 7 As shown, in another embodiment, the first pins 1231 of a portion of the spring contacts 120 are all located on one side of the circuit board 130 along the third direction, and the first pins 1231 of another portion of the spring contacts 120 are all located on the other side of the circuit board 130 along the third direction. The two portions of spring contacts 120 are alternately spaced along the second direction, and adjacent first pins 1231 are soldered to both sides of the circuit board 130. For example, the first pins 1231 of the first spring contact 120 and the first pins 1231 of the third spring contact 120 are soldered to the same side of the circuit board 130, with a large interval between them, which facilitates the soldering operation.
[0042] like Figures 2-6As shown, the plug 160 also includes a housing 140, which is fixedly connected to the mounting base 110. At least a portion of the spring contacts 120 are housed within the housing 140, and the first elastic portion 121 is exposed outside the housing 140. The housing 140 is inserted into the socket 210. The housing 140 serves to connect with the female socket 200 and to protect a portion of the spring contacts 120.
[0043] The housing 140 has multiple baffles 141 inside, with accommodating grooves 142 formed between adjacent baffles 141. The spring piece 120 is accommodated in the accommodating grooves 142. The housing 140 has an L-shaped opening 143, through which the first elastic part 121 is exposed to the outside, and the height of the first elastic part 121 is lower than the height of the baffles 141. The contact surface 2321 passes through the opening 143 and abuts against the first elastic part 121. The baffles 141 effectively isolate the contact combinations formed by adjacent contact surfaces 2321 and the first elastic part 121, preventing different contact combinations from becoming interconnected due to foreign objects or other reasons, thus improving reliability.
[0044] The outer casing 140 has an opening 144 communicating with the receiving groove 142, and the opening 144 is inserted into the outer periphery of the mounting base 110; or, the side wall of the opening 144 is engaged with the peripheral surface of the mounting base 110, thereby allowing the outer casing 140 to be inserted into or engaged with the mounting base 110, achieving a detachable connection. Optionally, the outer casing 140 has two latches 145 on two opposite side walls along a third direction, and the mounting base 110 has two latching protrusions 112 on two opposite side sides along a third direction, with the latching protrusions 112 engaging with the latches 145, thereby achieving a latching connection between the mounting base 110 and the outer casing 140.
[0045] The receiving groove 142 is provided with a limiting platform 146. The end faces of the limiting platform 146 and the mounting base 110 form a limiting groove 150. The spring piece 120 also includes a limiting part 125 disposed between the support part 123 and the second elastic part 122. The limiting part 125 is limited in the limiting groove 150. Specifically, one side of the limiting part 125 is connected to the first pin 1231 and the second pin 1232, and the other side of the limiting part 125 is connected to the second elastic part 122 through the connecting part 126. When the first pin 1231 and the second pin 1232 are inserted into the two sockets 111, the limiting part 125 is limited to one side of the mounting base 110, thereby realizing the assembly of the spring piece 120 and the mounting base 110. Then, the outer shell 140 is installed on the mounting base 110, and the limiting platform 146 is installed on the side of the limiting part 125 away from the mounting base 110, thereby realizing that the limiting platform 146 and the mounting base 110 form a limiting groove 150 for limiting the limiting part 125, which improves the installation stability of the spring piece 120 along the first direction.
[0046] The outer surface of the outer casing 140 is provided with an elastic buckle 147, which engages with the side wall of the socket 210. By pressing the elastic buckle 147, the outer casing 140 can be smoothly inserted into or removed from the socket 210. Furthermore, the side wall of the socket 210 has a communicating groove that communicates with the socket 210, and the elastic buckle 147 abuts against the groove wall. The shape of the outer casing 140 matches the shape of the socket 210, allowing the outer casing 140 and the socket 210 to fit together, providing a certain degree of restraint and sealing. Furthermore, a sealing ring can be provided between them to achieve waterproof and dustproof effects.
[0047] like Figures 1 to 4 as well as Figure 8 As shown, this embodiment also provides a female connector. A conductive probe 230 is fixed to the female connector 200. The conductive probe 230 includes a strip-shaped probe body 231 and a protrusion 232 on the probe body 231. The probe body 231 is fixed to the side wall of the socket 210, and the protrusion 232 forms a contact surface 2321. The contact surface 2321 is fixed to the female connector 200 by the conductive probe 230. Compared with the prior art, no elastic deformation is required, the structure is simple and compact, and the reliability is good. Furthermore, when the crystal head 100 is inserted into the female connector 200, the protrusion 232 can pass through the opening 143 on the outer shell 140 to abut against the first elastic part 121. The position and size of the protrusion 232 are specifically set according to actual needs. Optionally, the width of the first elastic part 121 along the first direction is L2 and the width of the contact surface 2321 along the first direction is L1. The ratio of L2 to L1 is greater than or equal to 1 and less than or equal to 3. This avoids the width of the first elastic part 121 being less than the width of the contact surface 2321, resulting in a small contact area between the two. It also avoids the width of the first elastic part 121 being too large, resulting in excessive redundancy and waste. For example, the ratio of the width L2 of the first elastic part 121 to the width L1 of the contact surface 2321 is 1, 1.5, 2, 2.5 or 3, etc.
[0048] The side of the protrusion 232 along the first direction is a guide surface 2322 that connects the top surface and the probe body 231. The guide surface 2322 is an inclined plane or arc surface. During the process of inserting the crystal head 100 into the female socket 200, the guide surface 2322 plays a guiding role with the spring 120, which facilitates the insertion.
[0049] The side wall of the socket 210 is provided with a mounting groove 211, the probe body 231 is accommodated in the mounting groove 211, and the protrusion 232 protrudes from the groove of the mounting groove 211. The probe body 231 is accommodated in the mounting groove 211, making the structure compact. The end of the probe body 231 is embedded in the bottom wall 212 of the socket 210, realizing the fixed connection between the probe body 231 and the female socket 200.
[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A crystal head for insertion into a female connector, the female connector comprising a socket and a contact surface disposed within the socket, characterized in that, The crystal head includes: A plug that is inserted into the socket, the plug including a mounting base; The spring includes a first elastic part, a second elastic part, and a support part arranged sequentially along a first direction. The support part is fixed to the mounting base. The first elastic part and the second elastic part are arranged at an angle. The first elastic part is planar and parallel to the contact surface. The first elastic part abuts against the contact surface.
2. The crystal head according to claim 1, characterized in that, The spring sheet also includes a bent portion connected to the first elastic portion. The bent portion, the first elastic portion, and the second elastic portion are arranged sequentially along the first direction and form a groove with the opening facing away from the contact surface.
3. The crystal head according to claim 2, characterized in that, The angles between the bent portion and the first elastic portion, as well as the angles between the second elastic portion and the first elastic portion, are both obtuse angles.
4. The crystal head according to claim 1, characterized in that, The mounting base has two insertion holes, and the support includes a first pin and a second pin, which are respectively inserted into the two insertion holes.
5. The crystal head according to claim 4, characterized in that, The first pin and the second pin are spaced apart and both extend along the first direction.
6. The crystal head according to claim 4, characterized in that, The mounting base has a plurality of spring contacts arranged along the second direction, and the first pin and the second pin are arranged along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other.
7. The crystal head according to claim 6, characterized in that, The length of the first pin is greater than the length of the second pin. The mounting base is connected to a circuit board. The first pin extends out of the mounting base and is electrically connected to the circuit board.
8. The crystal head according to claim 7, characterized in that, The first pins of all the spring contacts are located on the same side of the circuit board along the third direction; or, the first pins of a portion of the spring contacts are located on one side of the circuit board along the third direction, and the first pins of another portion of the spring contacts are located on the other side of the circuit board along the third direction, with the two portions of spring contacts alternately spaced along the second direction.
9. The crystal head according to claim 1, characterized in that, The mounting base is provided with multiple spring clips.
10. The crystal head according to claim 1, characterized in that, The support portion is inserted into the mounting base.
11. The crystal head according to claim 1, characterized in that, The plug also includes a housing, which is fixedly connected to the mounting base. At least a portion of the spring contacts are housed within the housing, and the first elastic portion is exposed outside the housing. The housing is plugged into the socket.
12. The crystal head according to claim 11, characterized in that, The housing has multiple baffles inside, and a receiving groove is formed between adjacent baffles. The spring is received in the receiving groove. The housing has an L-shaped opening, through which the first elastic part is exposed to the outside, and the height of the first elastic part is lower than the height of the baffle. The contact surface passes through the opening and abuts against the first elastic part.
13. The crystal head according to claim 12, characterized in that, The outer casing has an opening that communicates with the receiving groove, and the opening is inserted into the outer periphery of the mounting base; or, the side wall of the opening is engaged with the peripheral surface of the mounting base.
14. The crystal head according to claim 12, characterized in that, The receiving groove is provided with a limiting platform, and the end face of the limiting platform and the mounting base form a limiting groove. The spring sheet also includes a limiting part disposed between the support part and the second elastic part, and the limiting part is limited in the limiting groove.
15. The crystal head according to claim 11, characterized in that, The outer side of the housing is provided with an elastic buckle, which is snapped onto the side wall of the socket.
16. The crystal head according to claim 1, characterized in that, The mounting base has a groove on the side opposite to the first elastic part. The circuit board is installed into the groove, and the spring extends out of the mounting base and is soldered to the pads of the circuit board.
17. A connector assembly, characterized in that, The device includes a female connector and a crystal head as described in any one of claims 1-16. The female connector includes a socket and a contact surface disposed within the socket. The plug is inserted into the socket. A first elastic portion is planar and parallel to the contact surface. The first elastic portion abuts against the contact surface.
18. The connector assembly according to claim 17, characterized in that, The ratio of the width of the first elastic part along the first direction to the width of the contact surface along the first direction is greater than or equal to 1 and less than or equal to 3.
19. The connector assembly according to claim 17, characterized in that, The female connector is fixed with a conductive probe, which includes a strip-shaped probe body and a protrusion on the probe body. The probe body is fixed to the side wall of the socket, and the top of the protrusion forms the contact surface.
20. The connector assembly according to claim 19, characterized in that, The side wall of the socket is provided with a mounting groove, the probe body is housed in the mounting groove, the protrusion protrudes from the opening of the mounting groove, and the end of the probe body is embedded in the bottom wall of the socket.
21. The connector assembly according to claim 19, characterized in that, The side of the protrusion along the first direction serves as a guide surface connecting the top and the probe body.