A hair pin connector

Abstract

The present application relates to the technical field of electric connector, in particular to a pin connector, the pin connector comprises a connecting module, the connecting module comprises a pin assembly, the pin assembly comprises an insulator and a pin, the insulator is provided with a pin mounting hole, the pin is mounted in the pin mounting hole, the hole wall surface of the pin mounting hole is provided with a dielectric constant adjusting groove, the dielectric constant adjusting groove has an inner notch on the hole wall surface of the pin mounting hole, the width of the inner notch is less than the radial dimension of the pin, so that when the pin is compressed and in contact with the hole wall surface of the pin mounting hole, the dielectric constant adjusting groove keeps an air gap between the pin and the insulator at the periphery of the pin, and the signal loss can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connectors, in particular to a pin connector. BACKGROUND

[0002] The pin connector can realize solderless compression interconnection, meet the demand of high-speed transmission, and is suitable for application in the fields of military, aerospace, automobile, etc. The pin connector comprises an insulator and a pin mounted in the insulator. For the existing mounting structure of the pin, such as the pin connector disclosed in the Chinese Utility Model Patent with the publication number CN212434881U, which comprises a shell, an upper connecting module, and a lower connecting module, the lower connecting module comprises a pin assembly, the pin assembly comprises a lower insulator and a lower pin, the mounting hole in the lower insulator for assembling the pin is a stepped hole, the lower part of the stepped hole has a smaller diameter, and the upper part of the stepped hole has a larger diameter, the pin is mounted in the large-diameter section of the stepped hole, a fixing cap is further arranged below the pin, the fixing cap is a stepped column, the large-end of the fixing cap is located in the large-diameter section of the stepped hole, the small-end of the fixing cap extends out of the small-diameter section of the stepped hole, the small-end of the fixing cap is used for electrically contacting the contact of the printed board, and the fixing cap moves upward when the fixing cap and the contact are in top pressure contact, thereby top pressing the pin to make the pin compressively deform.

[0003] The above mounting structure of the pin is also the commonly used mounting structure at present, but this structure still has limitations, and the high transmission performance of the signal is still relatively low. After the pin compressively deforms, the pin and the hole wall of the mounting hole on the insulator form a close fit, and when the signal propagates, the electromagnetic wave is affected by the dielectric constant of the insulator, the dielectric constant of the insulator is much larger than that of the air, the larger the dielectric constant is, the greater the substrate loss is, and the stronger the attenuation of the electromagnetic wave is, and the signal loss is large. SUMMARY

[0004] The present application aims to provide a pin connector to solve the problem of large signal loss when the existing pin connector is used.

[0005] The technical scheme of the pin connector of the present application is as follows:

[0006] A pin connector comprises a connecting module, the connecting module comprises a pin assembly, the pin assembly comprises an insulator and a pin, the insulator is provided with a pin mounting hole, the pin is mounted in the pin mounting hole, a dielectric constant adjusting groove is arranged on the hole wall surface of the pin mounting hole, the dielectric constant adjusting groove has an inner groove opening located on the hole wall surface of the pin mounting hole, the width of the inner groove opening is smaller than the radial dimension of the pin, so that when the pin is compressed and top pressed with the hole wall surface of the pin mounting hole, the dielectric constant adjusting groove keeps an air gap between the pin and the insulator at the periphery of the pin.

[0007] Beneficial effects: By setting the dielectric constant adjusting groove on the hole wall of the pin hole, and making the inner slot width of the dielectric constant adjusting groove smaller than the radial dimension of the pin, when the pin connector is connected to the printed board, the pin is compressed and deformed to expand radially, the outer circumferential surface of the pin contacts the hole wall surface of the pin hole, and the pin does not fill into the dielectric constant adjusting groove, so that the dielectric constant adjusting groove allows the compressed pin to still maintain sufficient air gap with the insulator, electromagnetic waves can be conducted through the air gap, and the dielectric constant of air is smaller than that of the insulator, thereby reducing signal loss.

[0008] Further, the dielectric constant adjusting groove is provided with two or more, which are arranged at intervals along the circumference of the pin hole.

[0009] Beneficial effects: The number of dielectric constant adjusting grooves is large, thereby increasing the air gap and further reducing signal loss.

[0010] Further, the insulator is provided with two or more pin holes, and the pin holes are arranged side by side, and a communication cavity is arranged between the adjacent pin holes, the communication cavity is used to communicate the adjacent pin holes with each other, and the part of the communication cavity close to the pin hole is used to form the dielectric constant adjusting groove corresponding to the pin hole.

[0011] Beneficial effects: The two pins arranged in pairs can form a differential pair to transmit differential signals, and based on the two pin holes, the pin holes are communicated with each other, so that the communication cavity formed after the communication can be used to form the dielectric constant adjusting groove, that is, the part of the insulator between the two pin holes is used to form the dielectric constant adjusting groove, which is beneficial to increase the air gap.

[0012] Further, the pin hole is a through hole, and the dielectric constant adjusting groove has an opening on the end surface of the insulator.

[0013] Beneficial effects: The dielectric constant adjusting groove has an upper opening on the upper end surface of the insulator, that is, the dielectric constant adjusting groove has an upward opening, so that it can be communicated with the space above the insulator, which is beneficial to increase the air gap and reduce signal loss.

[0014] Further, the outer shell has an inner cavity, and the connecting module is provided with two or more, each of which is arranged side by side in the inner cavity of the outer shell, and the connecting module further includes a module shell, and the pin assembly of the same connecting module has two or more, each of which is arranged side by side on the module shell.

[0015] Beneficial effects: By setting the module shell for the connecting module, the hair button assembly is installed in the module shell, so that the module shell and the hair button assembly installed on the module shell form a relatively independent module, thereby facilitating the installation of the connecting module into the shell.

[0016] Further, the connecting module further comprises a cable, the cable corresponds to the hair button assembly one by one, the cable is in conductive connection with one end of the hair button, and the other end of the hair button is used for conductive connection with the printed board.

[0017] Beneficial effects: The cable can be connected with the printed board in conductive connection through the hair button, and is suitable for a board end connector.

[0018] Further, the end of the cable is provided with a terminal, the terminal extends into the hair button mounting hole to be in conductive connection with the hair button.

[0019] Beneficial effects: When the hair button is compressed, the terminal extending into the hair button mounting hole can be in reliable contact with the hair button.

[0020] Further, one side of the hair button is provided with a fixing cap, the fixing cap is a stepped column body, including a large diameter section and a small diameter section, the hair button mounting hole has a large hole section and a small hole section, a dielectric constant adjusting groove is arranged on the hole wall surface of the large hole section, a stop surface is formed between the large hole section and the small hole section, the large diameter section of the fixing cap is supported on the stop surface, the small diameter section of the fixing cap extends out of the small hole section of the hair button mounting hole, and the small hole sections of the two hair button mounting holes on the same insulator are through.

[0021] Beneficial effects: By setting the fixing cap and supporting the fixing cap on the stop surface, the hair button is prevented from falling downward, and at the same time, the small hole sections of the two hair button mounting holes are through left and right, so that the air gap can be increased.

[0022] Further, a shielding plate is further included, the shielding plate is arranged on one side of the module shell of each connecting module, the shielding plate covers each hair button, and the shielding plate is provided with an elastic sheet, the elastic sheet is used for conductive contact with the printed board.

[0023] Beneficial effects: By setting the shielding plate, the connection part of the hair button connector and the printed board can be shielded, and the elastic sheet on the shielding plate can be shielded and conducted with the corresponding grounding contact on the printed board.

[0024] Further, a fixing plate is further included, the fixing plate is arranged between the module shell of the connecting module and the shielding plate, the shielding plate is provided with a fixing protrusion, the fixing plate is provided with a fixing hole, and the fixing protrusion is pierced into the fixing hole to fix the shielding plate and the fixing plate.

[0025] Beneficial effects: By setting the fixing plate and piercing the fixing protrusion on the shielding plate into the fixing hole on the fixing plate to fix the shielding plate, the installation is stable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure diagram of the present application when the pin connector is connected with a printed board;

[0027] Figure 2 Structure diagram of the present application when the pin connector is connected with a printed board; Figure 1 Structure diagram of the present application when the pin connector is connected with a printed board;

[0028] Figure 3 Structure diagram of the present application when the pin connector is connected with a printed board;

[0029] Figure 4 Structure diagram of the present application when the pin connector is connected with a printed board;

[0030] Figure 5 Structure diagram of the present application when the pin connector is connected with a printed board;

[0031] Figure 6 Structure diagram of the present application when the pin connector is connected with a printed board;

[0032] Figure 7 Structure diagram of the present application when the pin connector is connected with a printed board;

[0033] Figure 8 Structure diagram of the present application when the pin connector is connected with a printed board; Figure 1 Structure diagram of the present application when the pin connector is connected with a printed board;

[0034] Figure 9 Structure diagram of the present application when the pin connector is connected with a printed board; Figure 1 Structure diagram of the present application when the pin connector is connected with a printed board;

[0035] Figure 10 Structure diagram of the present application when the pin connector is connected with a printed board; Figure 4 Structure diagram of the present application when the pin connector is connected with a printed board;

[0036] Figure 11 Structure diagram of the present application when the pin connector is connected with a printed board;

[0037] Figure 12 Structure diagram of the present application when the pin connector is connected with a printed board;

[0038] Figure 13 Structure diagram of the present application when the pin connector is connected with a printed board.

[0039] In the figure: 1, housing; 11, lug; 12, insert nut; 13, guide post; 2, module housing; 3, cable; 31, terminal; 4, printed board; 41, screw through hole; 42, guide hole; 43, ground contact; 44, signal contact; 5, screw; 6, shielding plate; 61, avoidance via; 62, spring; 63, fixing protrusion; 7, fixing cap; 8, fixing plate; 81, avoidance through hole; 82, embedding hole; 83, fixing hole; 9, insulator; 91, pin mounting hole; 92, dielectric constant adjusting groove; 93, avoidance groove; 10, pin. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and are not intended to limit the present application, i.e., the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0041] Therefore, the detailed description of the embodiments of the present application provided below in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of the present application.

[0042] It should be noted that the relationship terms such as "first" and "second" and the like that can appear in the specific embodiments of the present application are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms such as "include", "contain" or any other variants that can appear are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the possible appearing statements "include a" and the like do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] In the description of the present application, unless explicitly specified and limited, the terms "mount", "connect", "connect" that can appear should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0044] In the description of the present application, unless explicitly specified and limited, the term "provided with" that can appear should be understood broadly, for example, the object "provided with" can be a part of the body, or it can be arranged separately from the body and connected to the body, and the connection can be detachable or non-detachable. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0045] The application will be further described in detail in connection with the following examples.

[0046] Embodiment 1 of the pin connector of the application:

[0047] As shown in Figure 1 , Figure 2 , the pin connector is used to realize the connection between the cable 3 and the printed board 4, and the pin connector comprises a shell 1, a plurality of connection modules, the shell 1 has an inner cavity extending through up and down, the connection modules are arranged side by side in the inner cavity of the shell 1 along the front and back direction, a plurality of module mounting positions are arranged in the inner cavity of the shell 1 along the front and back direction, the module mounting positions correspond to the connection modules one by one for mounting the connection modules, the connection module comprises the cable 3, a module shell 2, a pin assembly, the pin assembly comprises an insulator 9, a pin 10, a fixing cap 7, the pin assemblies of the same connection module are four, the module shell 2 is provided with mounting cavities, the mounting cavities correspond to the pin assemblies one by one, the pin assemblies are mounted in the mounting cavities, the mounting cavities are arranged at intervals along the left and right directions for the pin assemblies of the same connection module to be installed side by side on the module shell 2 along the left and right directions, the cable 3 corresponds to the pin assemblies one by one, the cable 3 extends into the mounting cavities and is electrically connected with the pin 10.

[0048] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , the end of the cable 3 is provided with a terminal 31, the terminal 31 is welded with the signal line of the cable 3, and the terminal 31 is electrically connected with the upper end of the pin 10.

[0049] The insulator 9 is provided with a pin mounting hole 91 extending up and down, the pin mounting hole is a through hole extending up and down, the pin 10 is mounted in the pin mounting hole 91, the upper end of the pin 10 is located in the pin mounting hole 91, two pin mounting holes 91 are arranged on each insulator 9, so that two pins 10 are installed in pairs on the insulator 9, the two pins 10 installed in pairs can form a differential pair to transmit differential signals, correspondingly, the end of the cable 3 is provided with two terminals 31, the two terminals 31 respectively electrically connect the signal line with the corresponding pin 10, and the terminal 31 extends into the pin mounting hole 91 to be electrically connected with the pin 10.

[0050] The lower side of the hair button 10 is provided with a fixing cap 7, which is a stepped cylinder and includes a large-diameter section and a small-diameter section arranged in an upper-lower direction. The outer diameter of the large-diameter section is larger than that of the small-diameter section. The large-diameter section is used to press the lower end of the hair button 10 to compress the hair button 10. The hair button mounting hole 91 has a large-hole section and a small-hole section arranged in an upper-lower direction. The hole diameter of the large-hole section is larger than that of the small-hole section. The hair button 10 is located in the large-hole section. An upward stop surface is formed at the transition position between the large-hole section and the small-hole section. The large-diameter section of the fixing cap 7 is supported on the stop surface. The small-diameter section of the fixing cap 7 is arranged in the small-hole section and extends downward from the small-hole section of the hair button mounting hole 91. The lower end surface of the small-diameter section of the fixing cap 7 is used to make conductive contact with the printed board 4 to realize the conductive connection between the lower end of the hair button 10 and the printed board 4.

[0051] The hole wall surface of the large-hole section of the hair button mounting hole 91 is provided with a dielectric constant adjusting groove 92 extending in an upper-lower direction. The dielectric constant adjusting groove 92 has an inner groove opening located on the hole wall surface of the large-hole section of the hair button mounting hole 91. The inner groove opening of the dielectric constant adjusting groove 92 faces the central axis of the hair button mounting hole 91. The dielectric constant adjusting groove 92 extends upward to the upper end surface of the insulator 9 and downward to the stop surface. The dielectric constant adjusting groove 92 has an upper opening located on the upper end surface of the insulator. The side wall surface of the dielectric constant adjusting groove 92 is circularly arc-shaped and transitions with the hole wall surface of the hair button mounting hole 91. The groove bottom surface of the dielectric constant adjusting groove 92 is arc-shaped and transitions with the side wall surface. Two hair button mounting holes 91 on the same insulator 9 are arranged side by side. Four dielectric constant adjusting grooves 92 are uniformly distributed in the circumferential direction of the hair button mounting hole 91. The four dielectric constant adjusting grooves 92 arranged at the same hair button mounting hole 91 are respectively located in the front, rear, left and right positions of the hair button mounting hole 91. The upper-lower direction is the length direction of the dielectric constant adjusting groove 92. The width direction of the dielectric constant adjusting groove 92 is perpendicular to the length direction. The width of the inner groove opening of the dielectric constant adjusting groove 92 is smaller than the radial dimension of the hair button 10. Therefore, when the hair button 10 is compressed and in contact with the hole wall surface of the hair button mounting hole 91, the hair button 10 does not fill the space in the dielectric constant adjusting groove 92. The space in the dielectric constant adjusting groove 92 is not occupied and forms an air gap. Therefore, an air gap is maintained between the hair button 10 and the insulator 9 around the hair button 10.

[0052] For the two stud mounting holes 91 on the same insulator 9, the left and right stud mounting holes 91 are communicated with each other, and the large hole sections and the small hole sections are communicated with each other. The communication space between the left and right large hole sections forms a communication cavity, and the upper cavity opening of the communication cavity is provided with an upward step surface. The part of the communication cavity close to the left stud mounting hole 91 is used to form the dielectric constant adjusting groove 92 in the right position at the left stud mounting hole 91, and the part of the communication cavity close to the right stud mounting hole 91 is used to form the dielectric constant adjusting groove 92 in the left position at the right stud mounting hole 91. That is, the dielectric constant adjusting groove 92 in the right position at the left stud mounting hole 91 and the dielectric constant adjusting groove 92 in the left position at the right stud mounting hole 91 are left and right through, which is beneficial to increase the air gap. Moreover, the small hole sections of the two stud mounting holes 91 on the same insulator 9 are left and right through, and the communication space between the left and right small hole sections is up and down through with the communication space between the left and right large hole sections, so that the air gap can be increased. Since the width of the end of the terminal 31 used for abutting with the stud 10 in the left and right directions is wide, the upper end groove wall of the dielectric constant adjusting groove 92 in the left position at the left stud mounting hole 91 and the upper end groove wall of the dielectric constant adjusting groove 92 in the right position at the right stud mounting hole 91 are respectively provided with the avoiding groove 93 to avoid the abutting of the terminal 31 extending into the stud 10 hole with the stud 10.

[0053] As shown in Figure 2 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 As shown in the drawings, the lower cavity opening of the inner cavity of the shell 1 is provided with a fixed plate 8 and a shielding plate 6, the fixed plate 8 is arranged at the lower cavity opening of the inner cavity of the shell 1, the lower end surface of the shell 1 is provided with a groove communicating with the inner cavity of the shell 1, the groove is matched with the fixed plate 8, the shielding plate 6 is matched with the fixed plate 8, and the shielding plate 6 and the fixed plate 8 are installed in the groove. Among them, the fixed plate 8 is below the module shell of each connection module, the shielding plate 6 is below the fixed plate 8, the shielding plate 6 is fixed on the fixed plate 8, the fixed plate 8 covers each connection module, and the upper plate surface of the fixed plate 8 is connected with the lower end surface of the module shell 2. The insulator 9 is a stepped structure including a thicker upper part and a thinner lower part, the upper part of the insulator 9 is in the installation cavity of the module shell 2 and above the upper plate surface of the fixed plate 8, and the lower part of the insulator 9 passes through the fixed plate 8 and the shielding plate 6 downwardly.

[0054] The fixed plate 8 is provided with an avoiding through hole 81, an embedding hole 82 and a fixing hole 83. The avoiding through hole 81 is shaped to match the lower part of the insulator 9 so that the lower part of the insulator 9 can pass through the avoiding through hole 81. The fixing hole 83 is used to fix the shielding plate 6. The fixed plate 8 is made of plastic coated with conductive coating. The mounting cavity of the module housing 2 is also provided with a shielding sheet used to shield the connecting part of the shielding terminal 31 and the terminal block 10. The end of the cable 3 inserted into the mounting cavity is provided with a shielding ring which is clamped on the shielding layer of the cable. The shielding layer of the cable constitutes the cable shielding. The shielding sheet provided in the mounting cavity is in conductive contact with the shielding layer of the cable 3 to realize shielding conduction. The shielding sheet is provided with an embedding part extending downward out of the mounting cavity and embedded in the embedding hole 82 of the fixed plate 8 to realize conductive contact.

[0055] The shielding plate 6 covers each terminal block 10. The shielding plate 6 is provided with an avoiding through hole 61, a spring sheet 62 and a fixing protrusion 63. The avoiding through hole 61 is shaped to match the lower part of the insulator 9 so that the lower part of the insulator 9 can pass through the avoiding through hole 61. The fixing protrusion 63 is integrally formed on the shielding plate 6. The fixing protrusion 63 is L-shaped and includes a horizontal part and a vertical part. One end of the horizontal part is integrally connected with the main body of the shielding plate 6, and the other end is connected with the vertical part. The vertical part protrudes upward. The shielding plate 6 is fixed with the fixed plate 8 by making the vertical part of the fixing protrusion 63 penetrate into the fixing hole 83. The horizontal part forms a cantilever to make the fixing protrusion 63 have a certain elasticity to realize elastic contact between the shielding plate 6 and the fixed plate 8. The spring sheet 62 is integrally formed on the shielding plate 6. The spring sheet 62 is in cantilever structure and is bent downward based on the main body of the shielding plate 6. The spring sheet 62 protrudes downward from the lower surface of the shielding plate 6. The spring sheet 62 is used to be in elastic contact with the printed board 4. The spring sheet 62 and the fixing protrusion 63 are provided on the side of each avoiding through hole 61 to meet the shielding and fixing requirements.

[0056] The printed board 4 is provided with a screw through hole 41, a guide hole 42, a grounding contact 43 and a signal contact 44. The signal contacts 44 are provided in pairs. Each pair of signal contacts 44 is arranged on the upper surface of the printed board 4. The signal contacts 44 are used to be in contact with the fixing cap 7 of the terminal block assembly to realize signal conduction. The shielding plate shields the connecting part of the fixing cap and the signal contact. The spring sheet 62 of the shielding plate 6 is used to be in contact with the grounding contact 43 to realize shielding conduction through the shielding plate, the fixed plate, the shielding sheet and the shielding layer of the cable. The housing 1 is provided with two lugs 11 on the front and rear sides respectively. The lugs 11 are provided with an insert nut 12. The nut hole of the insert nut 12 constitutes a screw connecting hole. The screw connecting hole corresponds to the screw through hole 41 of the printed board 4 to realize locking connection between the housing 1 and the printed board 4 through the screw 5. The lower end surface of the housing 1 is also provided with a guide column 13 extending downward. The guide column 13 forms a guide structure and is used to be inserted into the guide hole 42 to guide the terminal block connector when the terminal block connector is connected with the printed board 4.

[0057] When the pin header is connected with the printed board 4, the part of the fixed cap 7 which downwardly extends the small hole section of the pin mounting hole 91 is pressed against the signal contact 44 on the printed board 4, the signal contact 44 upwardly presses the fixed cap 7, the fixed cap 7 moves upwardly, and the pin 10 is compressed, the pin 10 is compressed and deformed to expand radially, the outer circumferential surface of the pin 10 contacts the hole wall surface of the pin mounting hole 91, and the upper end surface of the pin 10 contacts the terminal 31; due to the setting of the dielectric constant adjusting groove 92, the pin 10 after being compressed can still maintain a sufficient air gap with the insulator 9, electromagnetic waves can be conducted through the air gap around the pin 10, and the dielectric constant of air is smaller than that of the insulator 9, so that the signal loss can be reduced.

[0058] Embodiment 2 of the pin header of the present application:

[0059] The difference between the present embodiment and embodiment 1 is that in embodiment 1, the dielectric constant adjusting grooves are arranged in the front, rear, left and right four directions of the pin mounting hole, while in the present embodiment, only one dielectric constant adjusting groove which extends upwardly and downwardly is arranged on the hole wall surface of the pin mounting hole.

[0060] Embodiment 3 of the pin header of the present application:

[0061] The difference between the present embodiment and embodiment 1 is that in embodiment 1, the lower side of the pin is provided with a fixed cap, and the lower end of the pin is electrically connected with the signal contact on the printed board through the fixed cap, while in the present embodiment, the lower end surface of the pin is used to directly electrically contact with the signal contact on the printed board, and the pin is interference fitted in the pin mounting hole to be fixed.

[0062] Embodiment 4 of the pin header of the present application:

[0063] The difference between the present embodiment and embodiment 1 is that in embodiment 1, the pin mounting holes on the insulator are communicated with each other, while in the present embodiment, the pin mounting holes on the insulator are independently arranged and not communicated with each other.

[0064] Finally, it should be noted that the above description is only for the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified without creative labor, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A button connector, comprising a connecting module, the connecting module including a button assembly, the button assembly including an insulator and a button, the insulator having a button mounting hole, the button being mounted in the button mounting hole, characterized in that, The dielectric constant adjusting groove is provided on the hole wall surface of the pin hole, and has an inner groove mouth on the hole wall surface of the pin hole. The width of the inner groove mouth is smaller than the radial dimension of the pin, so that when the pin is compressed and in contact with the hole wall surface of the pin hole, the dielectric constant adjusting groove keeps an air gap between the pin and the insulator at the periphery of the pin. The insulator is provided with two or more pin holes, and the pin holes are arranged side by side. A communication cavity is arranged between the adjacent pin holes, and is used to communicate the adjacent pin holes. The part of the communication cavity close to the pin hole is used to form the dielectric constant adjusting groove corresponding to the pin hole.

2. The hair clip connector according to claim 1, wherein The dielectric constant adjusting groove is provided with two or more grooves, which are arranged at intervals along the circumference of the pin hole.

3. The hair clip connector according to claim 1 or 2, wherein The pin hole is a through hole, and the dielectric constant adjusting groove has an opening on the end surface of the insulator.

4. The hair clip connector according to claim 1 or 2, wherein The shell has an inner cavity, and the connection module is provided with two or more modules, which are arranged side by side in the inner cavity of the shell. The connection module further includes a module shell, and the pin assembly of the same connection module is provided with two or more pin assemblies, which are arranged side by side on the module shell.

5. The hair clip connector of claim 4, wherein The connection module further includes a cable, which corresponds to the pin assembly one by one. The cable is electrically connected to one end of the pin, and the other end of the pin is used to be electrically connected to the printed board.

6. The hair clip connector of claim 5, wherein The end of the cable is provided with a terminal, which extends into the pin hole to be electrically connected to the pin.

7. The hair clip connector of claim 6, wherein One side of the pin is provided with a fixing cap, which is a stepped column and includes a large diameter section and a small diameter section. The pin hole has a large hole section and a small hole section, and the dielectric constant adjusting groove is arranged on the hole wall surface of the large hole section. A stop surface is formed between the large hole section and the small hole section, and the large diameter section of the fixing cap is supported on the stop surface. The small diameter section of the fixing cap extends out of the small hole section of the pin hole, and the small hole sections of the two pin holes on the same insulator are communicated.

8. The hair clip connector of claim 4, wherein The shielding plate is arranged on one side of the module shell of each connection module, and covers the pins. The shielding plate is provided with a spring sheet, which is used to be electrically connected to the printed board.

9. The hair clip connector of claim 8, wherein, The fixing plate is arranged between the module shell of the connection module and the shielding plate, and the shielding plate is provided with a fixing protrusion. The fixing plate is provided with a fixing hole, and the fixing protrusion penetrates into the fixing hole to fix the shielding plate and the fixing plate.

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