TWI878559B - Coaxial connector - Google Patents

Abstract

A coaxial connector includes an insulating body, a static terminal and a movable terminal received in the insulating body, and a metal shell arranged on the outside of the insulating body. The movable terminal is normally connected to the lower surface of the static terminal. Contact, the upper end surface of the insulating body is recessed with a first insertion hole and a second insertion hole whose size is smaller than the first insertion hole located beside the first insertion hole, and the movable terminal is provided with an exposed hole In the first contact portion of the first insertion hole, the static terminal is provided with a second contact portion exposed to the second insertion hole. By separately setting the jacks corresponding to the moving terminal and the static terminal, different signal measurements can be performed on the moving terminal and the static terminal using the plug.

Description

Coaxial connector

The present invention relates to a coaxial connector, and in particular to a coaxial connector with a switch arranged in a communication device.

Chinese mainland invention patent No. CN104584340B discloses a coaxial connector, which includes a first resin component, a second resin component, a fixed terminal, a movable terminal and a metal shell, wherein the fixed terminal and the movable terminal are arranged between the first resin component and the second resin component, and the metal shell is installed on the outer side of the first resin component and the second resin component. The movable terminal contacts the lower end of the fixed terminal under normal conditions, and the first resin component is provided with a through hole, and the contact part of the movable terminal is exposed to the through hole for the insertion of a pin. However, the pin can only achieve electrical connection with the movable terminal through the above-mentioned through hole to realize signal measurement of the movable terminal, while the fixed terminal cannot achieve the purpose of measurement.

Therefore, it is necessary to provide a new coaxial connector to overcome the above-mentioned defects.

The object of the present invention is to provide a switch coaxial connector capable of measuring signals of a moving terminal and a stationary terminal.

To achieve the above-mentioned purpose, the present invention can be implemented by the following technical solutions: a coaxial connector, comprising an insulating body, a static terminal and a movable terminal accommodated in the insulating body, and a metal shell arranged on the outer side of the insulating body, wherein the movable terminal is in contact with the lower surface of the static terminal in a normal state, and the upper end surface of the insulating body is concavely provided with a first plug hole and a second plug hole located beside the first plug hole and smaller than the first plug hole, the movable terminal is provided with a first contact portion exposed to the first plug hole, and the static terminal is provided with a second contact portion exposed to the second plug hole.

Furthermore, looking downward from the upper end surface of the insulating body, the second socket is connected to the first socket.

Furthermore, the first socket is used to receive a first pin, and the first socket and the second socket are used together to receive a second pin, the first pin is a first metal plug-in inserted into the first socket to abut the first contact portion, and the second pin includes a second metal plug-in inserted into the second socket to abut the second contact portion and an insulating plug-in located next to the second metal plug-in and inserted into the first socket to abut the first contact portion, and the insulating plug-in extends downward beyond the second metal plug-in.

Furthermore, when the first jack is inserted into the first metal plug-in, the first metal plug-in presses the first contact portion downward so that the movable terminal is disconnected from the static terminal downward, and the first metal plug-in is electrically connected to the first contact portion; when the first jack and the second jack are inserted into the second pin, the insulating plug-in of the second pin presses the first contact portion downward so that the movable terminal is disconnected from the static terminal downward, and the second metal plug-in is electrically connected to the second contact portion.

Furthermore, the insulating plug-in is injection molded or assembled and fixed to the second metal plug-in.

Furthermore, the insulating body includes a base and an annular butt joint portion installed at the upper end of the base, the first jack and the second jack are formed by passing through the upper and lower end surfaces of the annular butt joint portion, the movable terminal and the static terminal are integrally formed on the base, the movable terminal includes a first holding portion fixed in the base, an elastic arm formed by bending and extending from one end of the first holding portion and located at the upper end of the base, and a first welding portion formed by bending and extending from the other end of the first holding portion, the elastic arm The elastic arm is provided with the first contact portion exposed to the first jack, the static terminal includes a second holding portion held in the base, a contact arm bent and extended from one end of the second holding portion and located above the elastic arm and in contact with the elastic arm in a normal state, and a second welding portion bent and extended from the other end of the second holding portion, the upper surface of the contact arm forms the second contact portion exposed to the second jack, and the free end of the elastic arm is in contact with the lower surface of the contact arm in a normal state.

Furthermore, the insulating body extends longitudinally, the first jack and the second jack constitute a jack group, the movable terminal and the static terminal constitute a terminal group, the annular docking portion is provided with at least two of the jack groups arranged at intervals along the longitudinal direction, and the base is integrally formed with at least two of the terminal groups arranged at intervals along the longitudinal direction.

Furthermore, the metal shell includes a base and an annular wall extending upward from the base and arranged outside the annular docking portion, the lateral sides of the base extend downward to form grounding pins, the first welding portions of the adjacent terminal groups and the second welding portions of the adjacent terminal groups are respectively located on the lateral sides of the base, and the grounding pins are arranged between the first welding portions of the adjacent terminal groups and the second welding portions of the adjacent terminal groups.

Furthermore, the upper end of the base is recessed downwardly and is provided with a yielding groove located below the elastic arm, the yielding groove provides a yielding space for the elastic arm to deform downward elastically, and the two sides of the elastic arm are connected to a pair of supporting arms whose lower ends are suspended on the upper end of the base, and the free ends of the supporting arms are against the steps provided on the base.

Furthermore, both sides of the contact arm of the static terminal protrude to form abutment portions, and the upper end of the base protrudes to form a protrusion that supports the abutment portions upwards.

Compared with the prior art, the coaxial connector of the present invention has a first jack corresponding to the moving terminal and a second jack corresponding to the static terminal whose size is smaller than the first jack, which is recessed on the upper end surface of the insulating body. In this way, the signal can be measured by inserting a pin into the first jack and the second jack to measure the moving terminal and the static terminal.

The specific implementation of the coaxial connector 100 of the present invention is described below in conjunction with the first to ninth figures. The coaxial connector 100 of the present invention is installed on a circuit board (not shown), and the coaxial connector 100 includes an insulating body 1, a static terminal 21 and a movable terminal 22 accommodated and retained in the insulating body, and a metal shell 3 disposed on the outer side of the insulating body 1. The static terminal 21 and the movable terminal 22 constitute a terminal group 2, and the movable terminal 22 is in contact with the lower surface of the static terminal 21 in normal state.

The upper end surface 10 of the insulating body 1 is concavely provided with a first plug hole 101 and a second plug hole 102 located beside the first plug hole 101. Preferably, the size of the second plug hole 102 is smaller than that of the first plug hole 101. The movable terminal 22 is provided with a first contact portion 221 exposed to the first plug hole 101, and the static terminal 21 is provided with a second contact portion 211 exposed to the second plug hole 102. The first plug hole 101 is used for a first pin 200 to be inserted to electrically connect with the first contact portion 221 of the movable terminal 22, and the second plug hole 102 is used for a second pin 300 to be inserted to electrically connect with the second contact portion 211 of the static terminal 21. In a preferred embodiment of the present invention, looking downward from the upper end of the insulating body 1, the second jack 102 is connected to the first jack 101, but the second jack 102 may not be connected to the first jack 101. In the present invention, the first jack 101 is roughly circular, and the second jack 102 is roughly rectangular.

Specifically, the insulating body 1 includes a base 11 and an annular docking portion 12 installed from top to bottom on the upper end of the base 11. The first plug hole 101 and the second plug hole 102 are formed through the upper and lower end surfaces of the annular docking portion 12. The movable terminal 22 and the static terminal 21 are integrally formed on the base 11, and the movable terminal 22 and the static terminal 21 are respectively fixed on opposite sides of the base 11. The movable terminal 22 includes a first holding portion 222 fixed in the base 11, an elastic arm 223 formed by bending and extending from one end of the first holding portion 222 and located at the upper end of the base 11, and a first welding portion 224 formed by bending and extending from the other end of the first holding portion 222, and the elastic arm 223 is provided with the first contact portion 221 exposed to the first plug hole 101. The static terminal 21 includes a second holding portion 212 held in the base 11, a contact arm 213 formed by bending and extending from one end of the second holding portion 212 and located above the elastic arm 223 and in contact with the elastic arm 223 under normal conditions, and a second welding portion 214 formed by bending and extending from the other end of the second holding portion 212. The upper surface of the contact arm 213 forms the second contact portion 211 exposed to the second jack 102, and the free end 2231 of the elastic arm 223 is in contact with the lower surface of the contact arm 213 under normal conditions.

The first jack 101 is used to receive the first pin 200, which is a first metal plug inserted into the first jack 101 to abut against the first contact portion 221. When the first jack 101 is inserted into the first metal plug, the first metal plug presses the first contact portion 221 downward to make the movable terminal 22 break contact with the static terminal 21 downward. At this time, the first metal plug is electrically connected to the first contact portion 221, so that the signal of the movable terminal can be measured, that is, the characteristics of the high-frequency circuit can be measured. The first plug hole 101 and the second plug hole 102 are used to receive the second plug pin 300. The second plug pin 300 includes a second metal plug 301 inserted into the second plug hole 102 to abut against the second contact portion 211 and an insulating plug 302 located beside the second metal plug 301 and inserted into the first plug hole 101 to abut against the first contact portion 221. The insulating plug 302 extends downward beyond the second metal plug 301. The insulating plug 302 is injection molded on the second metal plug 301 or assembled and fixed on the second metal plug 301, so that the insulating plug 302 and the second metal plug 301 constitute an integral component. When the first jack 101 and the second jack 102 are inserted into the second pin 300, the insulating plug 302 of the second pin 300 presses the first contact portion 221 downward to disconnect the moving terminal 22 from the static terminal 21. At this time, the second metal plug 301 is electrically connected to the second contact portion 211, so that the signal of the static terminal 21 can be measured, that is, the characteristics of the antenna can be measured. In addition, it should be particularly noted that the connection relationship between the high-frequency circuit and the antenna can also be reversed.

The upper end of the base 11 is concave downwardly provided with a clearance groove 111 located below the elastic arm 223, and the clearance groove 111 provides clearance space for the elastic arm 223 to deform downward elastically. A pair of supporting arms 225 are connected to both sides of the elastic arm 223 in the width direction, and the lower ends of the pair of supporting arms 225 are suspended on the upper end of the base 11, and the free ends of the supporting arms 225 are against the steps 112 provided on the base 11, and the supporting arms 225 provide reliable elastic support force for the elastic arm 223. Since the static terminal 21 is abutted by the second metal plug 301, in order to prevent the static terminal 21 from being deformed downward by the abutment of the second metal plug 301, the two sides of the contact arm 213 of the static terminal 21 protrude in the width direction to form abutment parts 215, and the upper end of the base 11 protrudes with a protrusion 113 that supports the abutment inner part 215 upward.

In the present invention, the insulating body 1 extends in the longitudinal direction, the first jack 101 and the second jack 102 form a jack set 400, the movable terminal 22 and the static terminal 21 form a terminal set 500, the annular docking portion 12 is provided with at least two jack sets 400 arranged at intervals in the longitudinal direction, and the base 11 is integrally formed with at least two terminal sets 500 arranged at intervals in the longitudinal direction. Compared with the coaxial connector having only one terminal set 500 arranged in parallel, the coaxial connector 100 of the present invention integrates at least two terminal sets 500 in one body, which can effectively reduce the area of the circuit board (not shown) occupied by the coaxial connector 100. The lower end of the annular abutting portion 12 extends outward to form a base plate 121 . The metal housing 3 includes a base 31 abutting against the upper end of the base plate 121 and an annular wall 32 extending upward from the base 31 and disposed around the annular abutting portion 12 . The first welding portion 224 of the adjacent terminal group 500 and the second welding portion 214 of the adjacent terminal group 500 are respectively located on the lateral sides of the base 11. The lateral sides of the base 31 extend downward to form a grounding pin 33. The grounding pin 33 is arranged between the first welding portions 224 of the adjacent terminal groups 500 located on the same side of the base 11, and the grounding pin 33 is arranged between the second welding portions 214 of the adjacent terminal groups 500 located on the same side of the base 11. The setting of the grounding pin 33 is used to reduce signal interference between the adjacent terminal groups 500. In addition, the longitudinal sides of the base 31 are bent downward to form a welding plate portion 34 located at the lower end of the base 11, and the welding plate portion 34 provides the coaxial connector 100 with reliable welding plate reliability.

The above is only a partial implementation of the present invention, not all implementations. Any equivalent changes made to the technical solution of the present invention by ordinary technical personnel in this field after reading the specification of the present invention are covered by the scope of the patent application of the present invention.

100: coaxial connector 1: insulated body 10: upper end surface 101: first socket 102: second socket 11: base 111: clearance groove 112: step 113: protrusion 12: annular docking portion 121: substrate 2: terminal assembly 200: first pin 21: static terminal 211: second contact portion 212: second retaining portion 213: contact arm 214: second welding portion 215: abutment 22: moving terminal 221: first contact part 222: first holding part 223: elastic arm 2231: free end 224: first welding part 225: support arm 3: metal shell 300: second pin 301: second metal plug 302: insulating plug 31: base 32: annular wall 33: grounding pin 34: welding plate 400: socket assembly 500: terminal assembly

The first figure is a three-dimensional diagram of the coaxial connector of the present invention; The second figure is a three-dimensional diagram of the first figure from another angle; The third figure is a three-dimensional exploded diagram of the coaxial connector of the present invention; The fourth figure is a three-dimensional exploded diagram of the third figure from another angle; The fifth figure is a three-dimensional exploded diagram of the coaxial connector of the present invention, wherein the terminal group is arranged on the base; The sixth figure is a cross-sectional view of the first figure along the VI-VI line; The seventh figure is a cross-sectional view of the first figure along the VII-VII line; The eighth figure is a schematic diagram of the sixth figure with the first pin inserted; The ninth figure is a schematic diagram of the sixth figure with the second pin inserted.

without

211: Second contact part 221: First contact part 2231: Free end 300: Second pin 301: Second metal plug-in 302: Insulation plug-in

Claims (9)

A coaxial connector comprises an insulating body, a static terminal and a movable terminal received in the insulating body, and a metal shell disposed outside the insulating body, wherein the movable terminal is in contact with the lower surface of the static terminal in a normal state, wherein the upper end surface of the insulating body is concavely provided with a first plug hole and a second plug hole located beside the first plug hole and having a smaller size than the first plug hole, the movable terminal is provided with a first contact portion exposed to the first plug hole, and the static terminal is provided with a second contact portion exposed to the second plug hole, The first socket is used to receive a first pin, and the first socket and the second socket are used together to receive a second pin, the first pin is a first metal plug-in inserted into the first socket to abut the first contact portion, the second pin includes a second metal plug-in inserted into the second socket to abut the second contact portion and an insulating plug-in located beside the second metal plug-in and inserted into the first socket to abut the first contact portion, the insulating plug-in extending downward beyond the second metal plug-in. A coaxial connector as described in claim 1, wherein, looking downward from the upper end surface of the insulating body, the second socket is connected to the first socket. A coaxial connector as described in claim 1, wherein, when the first jack is inserted into the first metal plug-in, the first metal plug-in presses downward against the first contact portion so that the movable terminal is downwardly disconnected from the static terminal, and the first metal plug-in is electrically connected to the first contact portion; when the first jack and the second jack are inserted into the second pin, the insulating plug-in of the second pin presses downward against the first contact portion so that the movable terminal is downwardly disconnected from the static terminal, and the second metal plug-in is electrically connected to the second contact portion. A coaxial connector as described in claim 1, wherein the insulating plug is injection molded or assembled and fixed to the second metal plug. A coaxial connector as described in claim 1, wherein the insulating body includes a base and an annular mating portion installed at the upper end of the base, the first jack and the second jack are formed by passing through the upper and lower end surfaces of the annular mating portion, the movable terminal and the static terminal are integrally formed on the base, and the movable terminal includes a first holding portion fixed in the base, an elastic arm formed by bending and extending from one end of the first holding portion and located at the upper end of the base, and a first welding portion formed by bending and extending from the other end of the first holding portion. The elastic arm is provided with the first contact portion exposed to the first jack, the static terminal includes a second holding portion held in the base, a contact arm bent and extended from one end of the second holding portion and located above the elastic arm and in contact with the elastic arm in a normal state, and a second welding portion bent and extended from the other end of the second holding portion, the upper surface of the contact arm forms the second contact portion exposed to the second jack, and the free end of the elastic arm is in contact with the lower surface of the contact arm in a normal state. A coaxial connector as described in claim 5, wherein the insulating body extends longitudinally, the first jack and the second jack constitute a jack group, the movable terminal and the static terminal constitute a terminal group, the annular docking portion is provided with at least two of the jack groups arranged at intervals along the longitudinal direction, and the base is integrally formed with at least two of the terminal groups arranged at intervals along the longitudinal direction. A coaxial connector as described in claim 6, wherein the metal shell includes a base and an annular wall extending upward from the base and arranged outside the annular docking portion, the lateral sides of the base extend downward to form grounding pins, the first welding portions of adjacent terminal groups and the second welding portions of adjacent terminal groups are respectively located on the lateral sides of the base, and the grounding pin is arranged between the first welding portions of adjacent terminal groups and the second welding portions of adjacent terminal groups. A coaxial connector as described in claim 5, wherein the upper end of the base is recessed downwardly to form a clearance groove located below the elastic arm, the clearance groove provides a clearance space for the elastic arm to deform elastically downward, and the two sides of the elastic arm are connected to a pair of support arms whose lower ends are suspended from the upper end of the base, and the free ends of the support arms rest against the steps provided on the base. A coaxial connector as described in claim 5, wherein the contact arm of the static terminal has abutment portions protruding from both sides thereof, and a protrusion that supports the abutment portions upwards protrudes from the upper end of the base.

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