阅读说明：本技术 同轴连接器及其制造方法 (Coaxial connector and method of manufacturing the same ) 是由 杨凯杰 于 2020-05-26 设计创作，主要内容包括：本发明公开一种同轴连接器及其制造方法,所述同轴连接器包括绝缘本体、固持于绝缘本体的导电端子及包覆于绝缘本体外的金属壳体,导电端子包括固持于绝缘本体的常态下接触的静端子与动端子,绝缘本体包括基体及位于基体上端的具有插入腔的中空设置的筒部,动端子的抵接部暴露于插入腔内,动端子的第二接触部位于静端子的第一接触部的下方且常态下与第一接触部接触,金属壳体包括以抽引方式抽拉成型的环设于筒部的周缘的筒状部,筒状部包括筒状的无接缝的主体部及自主体部的顶部向外翻折形成的直径大于主体部的无接缝的外翻部,主体部的壁厚与所述外翻部的壁厚相同,主体部的外壁面构成位于外翻部的下方的环形锁扣槽。藉由将金属壳体的筒状部外翻形成连续不间断的外翻部,以提供对接同轴连接器对接锁扣,外翻部使得筒状部的壁厚不会发生变化,保证筒状部的整体结构强度。(The invention discloses a coaxial connector and a manufacturing method thereof, the coaxial connector comprises an insulating body, a conductive terminal fixed on the insulating body and a metal shell covering the insulating body, the conductive terminal comprises a static terminal and a movable terminal which are fixed on the insulating body and are contacted with each other under normal state, the insulating body comprises a base body and a hollow cylindrical part which is positioned at the upper end of the base body and is provided with an insertion cavity, an abutting part of the movable terminal is exposed in the insertion cavity, a second contact part of the movable terminal is positioned below the first contact part of the static terminal and is contacted with the first contact part under normal state, the metal shell comprises a cylindrical part which is drawn and formed and is annularly arranged on the periphery of the cylindrical part, the cylindrical part comprises a cylindrical seamless main body part and a seamless outward turning part which is formed by turning over from the top of the main body part to the outside and has a diameter larger than that of the main body part, and the wall thickness of the main body part is the same as that of the outward turning part, the outer wall surface of the main body forms an annular lock catch groove positioned below the eversion part. The cylindrical part of the metal shell is turned outwards to form a continuous and uninterrupted turning part so as to provide a butt joint lock catch for the butt joint coaxial connector, and the turning part enables the wall thickness of the cylindrical part not to change and guarantees the overall structural strength of the cylindrical part.)

1. A coaxial connector comprises an insulating body, a conductive terminal fixed on the insulating body and a metal shell coated outside the insulating body, wherein the conductive terminal comprises a static terminal and a movable terminal which are fixed on the insulating body and are contacted with each other under normal state, the insulating body comprises a base body and a hollow cylindrical part which is positioned at the upper end of the base body and is provided with an insertion cavity, the static terminal is provided with a first fixing part, a first welding part and a first contact part which are fixed on the base body, the movable terminal comprises a second fixing part, a second welding part and an elastic contact arm which are fixed on the base body, the elastic contact arm is provided with an abutting part exposed in the insertion cavity and a second contact part which is formed by extending from the abutting part, is contacted with the first contact part under normal state and is positioned below the first contact part, and the coaxial connector is characterized in that: the metal shell comprises a cylindrical part which is annularly arranged on the periphery of the cylinder part in a drawing mode, wherein the cylindrical part is formed by drawing and forming in a drawing mode, the cylindrical part comprises a cylindrical seamless main body part and an outward-turning part which is formed by turning over the top of the main body part outwards and has a diameter larger than that of the main body part, the wall thickness of the main body part is the same as that of the outward-turning part, and an annular lock catch groove positioned below the outward-turning part is formed in the outer wall surface of the main body part.

2. The coaxial connector of claim 1, wherein: the main body part is annularly arranged and attached to the outer wall surface of the cylinder part.

3. The coaxial connector of claim 1, wherein: the top of the eversion portion extends upward beyond the top of the barrel portion.

4. The coaxial connector of claim 2, wherein: the insertion cavity of the barrel portion comprises a circular cavity and a guide cavity which is located at the upper end of the circular cavity and communicated with the circular cavity, the diameter of the guide cavity is larger than that of the circular cavity, the diameter of the guide cavity is gradually increased from bottom to top to form a guide surface, and the eversion portion is provided with an inner wall surface which exceeds the guide cavity upwards and is in smooth transition with the guide surface of the guide cavity.

5. The coaxial connector of claim 4, wherein: the inner wall surface is coplanar with a guide surface of the guide chamber.

6. The coaxial connector of claim 1, wherein: the cylinder part and the base body are arranged independently, the fixed terminal and the movable terminal are integrally formed and are fixedly held on the base body, and the cylinder part is integrally formed on the cylinder part.

7. The coaxial connector of claim 6, wherein: the metal shell further comprises a plate-shaped part integrally connected to the periphery of the bottom edge of the cylindrical part, a standing part formed by bending and extending the plate-shaped part downwards, and a soldering lug bent inwards from the standing part and supported upwards at the lower end of the base body, the cylindrical part is arranged on the outer wall surface of the cylindrical part in a surrounding mode, and the plate-shaped part is attached to the substrate part in an abutting mode.

8. The coaxial connector of claim 7, wherein: the base body is provided with a pair of first sides and a pair of second sides, the first welding portion and the second welding portion are arranged on the pair of first sides respectively, the pair of second sides of the base body are provided with the standing portions, the standing portions are provided with penetrating grooves and a pair of limiting arms located on two sides of the penetrating grooves, the second sides laterally protrude outwards to form protruding block portions clamped in the penetrating grooves, and the inner edges of the limiting arms are limited on two sides of the protruding block portions respectively.

9. The coaxial connector of claim 8, wherein: the soldering lug comprises a first soldering lug positioned at the lower end of the protruding block part and a pair of second soldering lugs positioned at two sides of the first soldering lug, and a gap is formed between the first soldering lug and the pair of second soldering lugs.

10. A method of manufacturing a coaxial connector, comprising the steps of:

providing a metal plate, drawing and forming a metal shell with a cylindrical part in a drawing mode, wherein plate bodies are arranged on the periphery of the bottom edge of the cylindrical part;

the top of the cylindrical seamless main body part of the cylindrical part is folded outwards to form a seamless outwards-turned part with a diameter larger than that of the main body part, the wall thickness of the main body part is the same as that of the outwards-turned part, and the outer wall surface of the main body part forms an annular lock catch groove positioned below the outwards-turned part;

providing an insulating material, integrally molding the insulating material on the metal shell to form a hollow cylindrical part with an insertion cavity, wherein the cylindrical part comprises a base plate part and a cylindrical body formed by upwards extending from the base plate part, the cylindrical part is annularly arranged and attached to the outer wall surface of the cylindrical part, and the base plate part is attached to the lower surface of a plate-shaped part arranged on the plate body;

providing a static terminal and a movable terminal;

providing an insulating material, integrally forming the insulating material on the static terminal and the movable terminal to form a base body, wherein the static terminal is provided with a first fixing part fixedly held on the base body, a first welding part extending out of the base body and a first contact part exposed out of the upper end surface of the base body, the movable terminal comprises a second fixing part fixedly held on the base body, an elastic contact arm extending out of the second welding part of the base body and an upper end surface exposed out of the base body, the upper end surface of the base body is concavely provided with a deformation space for yielding when the elastic contact arm deforms downwards, and the elastic contact arm is provided with a butting part and a second contact part which is formed by extending from the butting part, normally contacts with the first contact part and is positioned below the first contact part;

assembling a metal shell and a cylinder part on the upper end surface of the base body from top to bottom, and exposing the abutting part of the elastic contact arm in an insertion cavity of the cylinder part;

and bending the plate body of the metal shell downwards from the plate-shaped part to form a standing part positioned on the side surfaces of the base plate part and the base body, and further bending the standing part inwards to form a soldering lug upwards supported at the lower end of the base body.

[ technical field ] A method for producing a semiconductor device

The present invention relates to a coaxial connector, and more particularly, to a coaxial connector having a metal shell with high structural strength.

[ background of the invention ]

Related prior art please refer to taiwan patent TWI558043B of the present invention, which discloses a coaxial connector, including an insulative housing, a conductive terminal fixed on the insulative housing, and a metal shell covering the insulative housing. The insulating body comprises a base body and a hollow cylindrical part which is positioned at the upper end of the base body and is provided with an insertion cavity, the conductive terminal comprises a static terminal and a movable terminal which are fixedly held on the base body, the movable terminal is in contact with the static terminal in a normal state, and the abutting part of the movable terminal is exposed in the insertion cavity and is abutted by the needle-shaped terminal of the butting connector. The outer wall surface of the cylindrical part of the metal shell is inwards punched to form an annular groove, and the annular groove is used for locking and fixing a butting shell of a butting connector. However, the annular grooves formed by stamping result in a reduced wall thickness of the cylindrical portion, thereby reducing the overall structural strength of the cylindrical portion.

Therefore, there is a need to provide a new coaxial connector to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide a coaxial connector, which has a high structural strength of a metal shell.

In order to achieve the above object, the present invention discloses a coaxial connector, comprising an insulating body, a conductive terminal held on the insulating body and a metal shell covering the insulating body, wherein the conductive terminal comprises a static terminal and a movable terminal which are held on the insulating body and are contacted with each other in a normal state, the insulating body comprises a base body and a hollow cylindrical part which is positioned at the upper end of the base body and is provided with an insertion cavity, the static terminal is provided with a first holding part, a first welding part and a first contact part which are held on the base body, the movable terminal comprises a second holding part, a second welding part and an elastic contact arm which are held on the base body, the elastic contact arm is provided with an abutting part exposed in the insertion cavity and a second contact part which is formed by extending from the abutting part and is contacted with the first contact part in the normal state and is positioned below the first contact part, the metal shell comprises a cylindrical part which is annularly arranged on the periphery of the cylindrical part in a drawing manner, the cylindrical part comprises a cylindrical seamless main body part and an outward turning part which is formed by turning the top of the main body part outwards and has a diameter larger than that of the main body part, the wall thickness of the main body part is the same as that of the outward turning part, and the outer wall surface of the main body part forms an annular lock catch groove positioned below the outward turning part.

Further, the main body portion is annularly arranged and attached to the outer wall surface of the cylinder portion.

Further, the top of the eversion portion extends upward beyond the top of the barrel portion.

Further, the insertion cavity of the cylinder portion includes a circular cavity and a guide cavity located at an upper end of the circular cavity and communicating with the circular cavity, the guide cavity having a diameter larger than that of the circular cavity, the guide cavity gradually increasing in diameter from bottom to top to form a guide surface, and the eversion portion has an inner wall surface which exceeds the guide cavity in a direction upward and smoothly transitions to the guide surface of the guide cavity.

Further, the inner wall surface is coplanar with a guide surface of the guide chamber.

Further, the cylinder portion and the base body are provided independently of each other, the stationary terminal and the movable terminal are integrally formed and held to the base body, and the cylinder portion is integrally formed to the cylinder portion.

Further, the cylindrical portion includes a base plate portion and a cylindrical portion extending upward from the base plate portion, the metal case further includes a plate portion integrally connected to a bottom edge peripheral side of the cylindrical portion, an upright portion formed by bending and extending downward from the plate portion, and a tab formed by bending inward from the upright portion and supported upward at a lower end of the base, the cylindrical portion is annularly provided on an outer wall surface of the cylindrical portion, and the plate portion abuts against the base plate portion.

Further, the base body is provided with a pair of first sides and a pair of second sides, the first welding portion and the second welding portion are arranged on the pair of first sides respectively, the pair of second sides of the base body are provided with the standing portion, the standing portion is provided with a through groove and a pair of limiting arms located on two sides of the through groove, the second sides laterally protrude outwards to form a protruding portion clamped in the through groove, and inner edges of the pair of limiting arms are limited on two sides of the protruding portion respectively.

Further, the soldering lug comprises a first soldering lug positioned at the lower end of the protruding block part and a pair of second soldering lugs positioned at two sides of the first soldering lug, and a gap is formed between the first soldering lug and the pair of second soldering lugs.

In order to achieve the above object, the present invention further discloses a method for manufacturing a coaxial connector, comprising the steps of: providing a metal plate, drawing and forming a metal shell with a cylindrical part in a drawing mode, wherein plate bodies are arranged on the periphery of the bottom edge of the cylindrical part; the top of the cylindrical seamless main body part of the cylindrical part is folded outwards to form a seamless outwards-turned part with a diameter larger than that of the main body part, the wall thickness of the main body part is the same as that of the outwards-turned part, and the outer wall surface of the main body part forms an annular lock catch groove positioned below the outwards-turned part; providing an insulating material, integrally molding the insulating material on the metal shell to form a hollow cylindrical part with an insertion cavity, wherein the cylindrical part comprises a base plate part and a cylindrical body formed by upwards extending from the base plate part, the cylindrical part is annularly arranged and attached to the outer wall surface of the cylindrical part, and the base plate part is attached to the lower surface of a plate-shaped part arranged on the plate body; providing a static terminal and a movable terminal; providing an insulating material, integrally forming the insulating material on the static terminal and the movable terminal to form a base body, wherein the static terminal is provided with a first fixing part fixedly held on the base body, a first welding part extending out of the base body and a first contact part exposed out of the upper end surface of the base body, the movable terminal comprises a second fixing part fixedly held on the base body, an elastic contact arm extending out of the second welding part of the base body and an upper end surface exposed out of the base body, the upper end surface of the base body is concavely provided with a deformation space for yielding when the elastic contact arm deforms downwards, and the elastic contact arm is provided with a butting part and a second contact part which is formed by extending from the butting part, normally contacts with the first contact part and is positioned below the first contact part; assembling a metal shell and a cylinder part on the upper end surface of the base body from top to bottom, and exposing the abutting part of the elastic contact arm in an insertion cavity of the cylinder part; and bending the plate body of the metal shell downwards from the plate-shaped part to form a standing part positioned on the side surfaces of the base plate part and the base body, and further bending the standing part inwards to form a soldering lug upwards supported at the lower end of the base body.

Compared with the prior art, the invention has the following beneficial effects: the coaxial connector of the invention is characterized in that the cylindrical part of the metal shell is turned outwards to form a continuous and uninterrupted turning-out part so as to provide a butt joint lock catch for the butt joint coaxial connector, and the turning-out part ensures that the wall thickness of the cylindrical part cannot be changed and the integral structural strength of the cylindrical part is ensured.

[ description of the drawings ]

Fig. 1 is a perspective assembly view of the coaxial connector of the present invention.

Fig. 2 is a perspective assembly view of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of the coaxial connector of the present invention.

Fig. 4 is an exploded perspective view of fig. 3 from another perspective.

Fig. 5 is a partial exploded perspective view of the coaxial connector of the present invention, wherein the stationary and moving terminals are secured to the base.

Fig. 6 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 7 is a schematic view of the manufacture of the coaxial connector of the present invention.

Fig. 8 is a schematic view of the manufacture of the coaxial connector of the present invention.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

An embodiment of the coaxial connector 100 of the present invention will be described with reference to fig. 1 to 8. The coaxial connector 100 of the present invention is mounted on a circuit board (not shown), and the coaxial connector 100 includes an insulative housing 1, a conductive terminal 2 fixed on the insulative housing 1, and a metal shell 3 covering the insulative housing 1. The conductive terminal 2 includes a stationary terminal 21 and a movable terminal 22 which are held in the insulating housing 1 and are in contact with each other in a normal state, and the insulating housing 1 includes a base 11 and a hollow cylindrical portion 12 having an insertion cavity 120 and located at an upper end of the base 11. A pin terminal (not shown) of a mating connector (not shown) is inserted into the insertion cavity 120 to abut against the movable terminal 22 and disconnect the movable terminal 22 from the stationary terminal 21.

The fixed terminal 21 has a first holding portion 211 held on the base 11, a first welding portion 212 formed by extending from one end of the first holding portion 211, and a first contact portion 213 formed by extending from the other end of the first holding portion 211. The movable terminal 22 includes a second holding portion 221 held on the base 11, a second welding portion 222 formed by extending from one end of the second holding portion 221, and an elastic contact arm 223 formed by extending from the other end of the second holding portion 221. The elastic contact arm 223 has an abutting portion 2231 exposed in the insertion cavity 120 and a second contact portion 2232 extending from the abutting portion 2231 and being in normal contact with the first contact portion 213 and located below the first contact portion 213, and a pin terminal (not shown) of a mating connector (not shown) is inserted into the insertion cavity 120 and then abuts against the abutting portion 2231 to disconnect the second contact portion 2232 of the movable terminal 22 from the first contact portion 213 of the stationary terminal 21. A pair of support arms 224 are formed by extending two sides of the elastic contact arm 223 of the movable terminal 22 in the width direction, a pair of limiting grooves 110 for accommodating the pair of support arms 224 is disposed on the upper end surface of the base body 11, and a deformation space 111 for yielding when the elastic contact arm 223 of the movable terminal 22 deforms downward is further concavely disposed on the upper end surface of the base body 11. In a preferred embodiment of the present invention, the second contact portions 2232 are convex hull structures protruding upward from the plate surfaces of the elastic contact arms 223, and are in point contact with the first contact portions 213.

The metal shell 3 includes a cylindrical portion 31 formed by drawing and forming a ring around the periphery of the cylindrical portion 12, and a plate body 32 integrally connected to the bottom peripheral side of the cylindrical portion 31. The cylindrical part 31 comprises a cylindrical seamless main body part 311 and a seamless outward turned part 312 which is formed by turning over the top of the main body part 311 and has a diameter larger than that of the main body part 311, the outward turned part 312 is a continuous and uninterrupted annular structure, and the wall thickness of the main body part 311 is the same as that of the outward turned part 312 due to the outward turned part 312, so that the overall structural strength of the cylindrical part 31 is not weakened. The outer wall surface of the main body 311 forms an annular locking groove 313 located below the evaginable portion 312, and when the mating connector (not shown) is mated with the coaxial connector 100, a mating housing (not shown) of the mating connector (not shown) passes over the evaginable portion 312 and is finally locked in the annular locking groove 313. Specifically, the main body 311 of the cylindrical portion 31 is disposed around and abuts against the outer wall surface of the cylindrical portion 12, that is, the outer wall surface of the cylindrical portion 12 can provide effective support for the main body 311, and the cylindrical portion 31 can be effectively prevented from being inserted and collapsed by a mating housing (not shown) of a mating connector (not shown). The insertion cavity 120 of the barrel 12 includes a circular cavity 1201 and a guide cavity 1202 located at the upper end of the circular cavity 1201 and communicating with the circular cavity 1201, the guide cavity 1202 having a diameter larger than that of the circular cavity 1201, and the diameter of the guide cavity 1202 gradually increases from bottom to top to form a guide surface 12021, i.e., the diameter of the guide cavity 1202 gradually increases from the connection with the circular cavity 1201 to form a guide surface 12021 for guiding a pin terminal (not shown) of a mating connector (not shown) into the circular cavity 1201. The top of the eversion 312 extends upward beyond the top of the barrel 12, i.e., the eversion 312 extends upward beyond the guide cavity 1202, and the eversion 312 has an inner wall surface 3121 that extends upward beyond the guide cavity 1202 and smoothly transitions with the guide surface 12021 of the guide cavity 1202. Preferably, the inner wall surface 3121 is coplanar with the guide surface 12021 of the guide cavity 1202, so that the pin terminals (not shown) can be better introduced.

In a preferred embodiment of the present invention, the tube portion 12 and the base 11 are provided independently of each other, that is, the tube portion 12 is assembled to the base 11 from the top down, but the present invention is not limited thereto, and the tube portion 12 may be provided integrally with the base 11. Only the cylindrical portion 12 and the base body 11 are provided independently of each other. The stationary terminal 21 and the movable terminal 22 are integrally formed and held on the base 11, the cylindrical portion 12 is integrally formed on the cylindrical portion 31, and then the entire cylindrical portion 12 and the cylindrical portion 31 are mounted downward on the base 11. The cylinder 12 includes a base plate 121 and a cylinder 122 integrally extending upward from the base plate 121, and the cylinder 31 is annularly disposed on and abuts against an outer wall surface of the cylinder 122. The plate 32 of the metal case 3 includes a plate 321 integrally connected to the bottom edge of the cylindrical portion 31, a rising portion 322 formed by bending and extending downward from the plate 321, and a tab 323 formed by bending inward from the rising portion 322 and supported upward at the lower end of the base 11. The base plate 121 is located below the plate 321 and abuts against the plate 321. The base 11 has a pair of first sides 112 disposed opposite to each other and a pair of second sides 113 disposed opposite to each other, and the pair of first sides 112 and the pair of second sides 113 are connected to each other to form a rectangular structure. The first welding portion 212 and the second welding portion 222 are respectively disposed on the pair of first sides 112, the pair of second sides 113 of the base 11 are respectively provided with the standing portion 322, the three-dimensional portion 322 is provided with a through groove 3221 and a pair of limiting arms 3222 located at two sides of the through groove 3221, the second side 113 protrudes outward to form a protruding portion 1131 which is inserted into the through groove 3221, and inner edges of the pair of limiting arms 3222 are respectively limited at two sides of the protruding portion 1131, so as to effectively limit the relative movement between the base 11 and the metal shell 3. In order to ensure the reliability of the soldering between the soldering lug 323 and the circuit board (not shown), the soldering lug 323 includes a first soldering lug 3231 located at the lower end of the protruding portion 1131 and a pair of second soldering lugs 3232 located at two sides of the first soldering lug 3231, a gap 3233 is provided between the first soldering lug and the second soldering lug 3232, the gap 3233 can ensure that the first soldering lug 3231 and the second soldering lug 3232 have a certain independence, and even if one of the first soldering lug 3231 or the second soldering lug 3232 is detached, the other can ensure the soldering between the metal shell 3 and the circuit board (not shown).

Referring to fig. 7 and 8, a method of manufacturing the electrical connector 100 of the present invention is described, the method comprising the steps of: providing a metal plate 200, drawing and forming the metal shell 3 with a cylindrical part 31 in a drawing mode, wherein a plate body 32 is arranged on the periphery of the bottom edge of the cylindrical part 31; the top of the tubular seamless main body 311 of the tubular part 31 is folded outwards to form a seamless outward turned part 312 with a diameter larger than that of the main body, the wall thickness of the main body 312 is the same as that of the outward turned part 312, and the outer wall surface of the main body 31 forms an annular locking groove 313 below the outward turned part 312; providing an insulating material, integrally molding the insulating material on the metal shell 3 to form a hollow cylindrical part 12 with an insertion cavity 120, wherein the cylindrical part 12 comprises a base plate part 121 and a cylindrical body 122 formed by extending upwards from the base plate part 121, the cylindrical part 31 is annularly arranged and attached to the outer wall surface of the cylindrical part 122, and the base plate part 121 is attached to the lower surface of a plate-shaped part 321 arranged on the plate body 32; providing a static terminal 21 and a movable terminal 22; providing an insulating material, integrally molding the insulating material on the fixed terminal 21 and the movable terminal 22 to form a base 11, where the fixed terminal 21 has a first holding portion 211 held on the base 11, a first welding portion 212 extending out of the base 11, and a first contact portion 213 exposed out of an upper end surface of the base 11, the movable terminal 22 includes a second holding portion 221 held on the base 11, a second welding portion 222 extending out of the base 11, and an elastic contact arm 223 exposed out of an upper end surface of the base 11, the upper end surface of the base 11 is recessed to provide a deformation space 111 for the elastic contact arm 223 to yield when deforming downward, and the elastic contact arm 223 has an abutting portion 2231 and a second contact portion 223 extending from the abutting portion 2231 and contacting with the first contact portion 213 in a normal state and located below the first contact portion 213; the metal shell 3 and the cylinder part 12 are assembled on the upper end surface of the base body 11 from top to bottom, and the abutting part 2231 of the elastic contact arm 223 is exposed in the insertion cavity 120 of the cylinder part 12; the plate 32 of the metal case 3 is bent downward from the plate 321 to form a rising portion 322 located on the side surfaces of the base plate 121 and the base 11, and further bent inward from the rising portion 322 to form a soldering terminal 323 supported upward at the lower end of the base 11.

The above description is only for the purpose of describing several embodiments of the present invention, and not for the purpose of describing all embodiments, and any equivalent variations of the technical solutions of the present invention which are obvious to those skilled in the art after reading the present specification are intended to be covered by the claims of the present invention.