TWI852428B - Signal connector - Google Patents

Abstract

The invention is a signal connector, comprising a housing, a clip, a first pin, a second pin, and a coupling column. The housing is made of hard plastic material and has a first housing and a second housing that can be connected to form a cylindrical shape. The housing has a sleeve groove at the front end, and the sleeve groove has a ring wall and a bottom wall, and is provided with a first group of connection holes and a second group of connection holes. The clip is made of metal. Made of a material, it is arranged at the annular wall position of the socket groove of the housing, and has a flexible clamping part at the front; the first pin is arranged at the first set of connection holes; the second pin is arranged at the second set of connection holes; the front of the connection column is connected to the housing; thereby, the present invention can have better plug-in stability, better signal transmission, prevent housing welding damage, and environmental protection effect.

Description

Signal connector

The present invention relates to a signal connector, mainly referring to a connector that is combined with an electrical connection line and can be plugged into a socket for signal transmission.

It is known that the signal connector can be used for audio and video signal transmission, such as the signal connector can be plugged into a socket on an amplifier, a speaker, or a television for signal transmission. It is known that the signal connector has several different types, for example, the signal connector has a metal shell, the front of the shell has an annular socket, the socket has an annular socket groove that can fit the outer periphery of the socket and can transmit electricity, the socket groove and the outer edge of the socket have an annular wall, and the back of the socket has a pin that can be connected to the negative pole of the electrical connection line. A plug post is provided in the center of the socket slot, which is insulated from the socket slot wall and can be plugged into the center of the socket. The back of the plug post is provided with a pin that can be connected to the positive pole of the electrical connection line, so that the signal connector can transmit signals after being plugged into the socket.

The wall of the socket must be thick enough to ensure that the socket can be stably fitted with the socket without deformation. However, the thick metal wall has poor elasticity, which makes it difficult for the socket to be stably fitted with the socket and difficult to separate and remove the socket, resulting in poor insertion and assembly stability. In order to improve the signal transmission effect, the socket must use expensive metal with better conductivity and signal transmission effect, but the socket made entirely of expensive metal will greatly increase the cost of the signal connector, which is not economical.

In order to improve the above-mentioned defects, the applicant designed a socket connector No. M463447 made of plastic material. The center and side edges of the socket connector are respectively formed with a first pin and a second pin. The first and second pins are components of different materials from the plug connector. Therefore, the first pin and the second pin are made of expensive metal materials with better conductivity and signal transmission efficiency without significantly increasing the cost. However, when the user welds the electrical connection wires to the first pin and the second pin, the plastic socket connector may be melted, damaged, and lost if the operation is not careful. Moreover, although the plastic socket connector is more elastic than the metal plug connector with a thicker ring wall, its elasticity is still not as good as that of the metal spring, and there is still a need for improvement. Furthermore, the first and second metal pins are not easy to separate from the plastic sleeve connector after being molded and assembled, which makes it difficult to recycle when damaged and is not environmentally friendly.

The purpose of the present invention is to provide a signal connector with better combination stability, better signal transmission, and environmental protection.

The signal connector of the present invention includes a housing, a clip, a first pin, a second pin, and a coupling column. The housing is made of hard plastic material and has a first housing and a second housing that can be connected to form a cylindrical shape. The housing has a central axis and an end ring at the front end. A sleeve groove recessed toward the rear is arranged in the center of the end ring. The sleeve groove has an annular wall and a bottom wall. A first set of connecting holes is axially arranged in the center of the bottom wall corresponding to the central axis position and penetrating forward and backward; and a second set of connecting holes is arranged in the bottom wall near the annular wall position and penetrating forward and backward corresponding to the axis. ; The clip is made of metal material and is an arc-shaped sheet disposed on the annular wall of the socket groove of the housing, with a flexible clamping portion at the front; the first pin is a straight strip body disposed at the first set of connection holes of the housing, with its front section protruding from the front end of the housing, and its rear section having a first electrical connection portion protruding from the rear end of the housing; the second pin is a straight strip body disposed at the second set of connection holes of the housing, with its front section located in the socket groove of the housing, and its rear section having a second electrical connection portion protruding from the rear of the housing; the front of the coupling column is coupled to the housing.

In one embodiment of the present invention, the clip, the first pin and the second pin are made of different metal materials, and a notch is set in the clip corresponding to the second set of connection holes of the housing, which penetrates axially and does not contact the second pin.

In one embodiment of the present invention, the front end of the annular wall of the sleeve groove of the housing has an annular baffle with a diameter smaller than the diameter of the annular wall, and at least one protrusion is arranged on the annular wall toward the center, and the axial length of the clamping piece is slightly smaller than the distance between the bottom wall of the sleeve groove and the baffle, and the clamping part is in front of the clamping piece and shrinks toward the center, and the clamping part and the annular wall of the housing have space for elastic displacement of the clamping part, and a groove that can engage with the protrusion is arranged at the position of the clamping part corresponding to the protrusion of the sleeve groove.

In one embodiment of the present invention, a first positioning groove having a diameter larger than that of the first group of connecting holes is disposed in the center of the first group of connecting holes of the housing, a first stopping surface for preventing the first pin from rotating is disposed around the first positioning groove, a first protruding ring is disposed in the center of the first pin at a position corresponding to the first positioning groove of the housing, and a first abutting surface is disposed at a position of the first protruding ring corresponding to the first stopping surface of the housing.

In one embodiment of the present invention, a second positioning groove is provided in front of the second set of connection holes of the housing, and a front abutment surface is provided at the rear of the second positioning groove. The rear width of the second set of connection holes is smaller than the diameter of the second positioning groove, and a second abutment surface is provided at a portion of the rear of the second positioning groove. A second convex ring is provided at the center of the second pin corresponding to the second positioning groove of the second set of connection holes, and a concave second abutment surface is provided at the rear of the second convex ring corresponding to the second abutment surface, and the rear end of the second abutment surface has a rear abutment surface that can abut against the rear end of the housing.

The present invention has a separable design of the housing and the first pin and the second pin. Therefore, the first electrical connection part behind the first pin and the second electrical connection part behind the second pin can be welded with the electrical connection wire before assembling the housing and the clip assembly, which can prevent the housing from melting and being damaged during the welding process.

The signal connector of the present invention can be plugged into a socket for signal transmission, and the clamping portion can stably clamp the socket by its elastic force. The elastic force of the clamping piece is better than that of plastic and traditional thicker metal connectors, and can have better connection stability.

The clip of the present invention only has a clamping function, so the clip does not need to use expensive metal materials with better conductivity and signal transmission. The present invention only needs to use small-volume first pins and second pins with better conductivity and signal transmission materials to have an excellent signal transmission effect, which can reduce the finished product and have high quality effects. In addition, the metal clip, the first pin, the second pin and the plastic housing of the present invention are easily separable components, which can be easily separated and recycled to protect the environment.

Please refer to Figures 1 to 5. The signal connector of the present invention includes a housing 1, a clip 2, a first pin 3, a second pin 4, and a coupling column 5. The housing 1 is made of hard plastic material and has a first housing 11 and a second housing 12 that can be connected to form a cylindrical shape. The cylindrical housing 1 has a central axis 13. The first housing 11 and the second housing 12 are approximately symmetrical semi-cylindrical bodies, and a buckle hole 111 and a buckle body 121 that can be buckled with each other are respectively provided in the circumferential direction of the housing 1. The housing 1 has an end ring 14 at the front end, and a radially protruding convex ring 141 is provided on the outer periphery of the end ring 14. A sleeve groove 15 is provided at the center of the end ring 14 and is recessed toward the rear. The sleeve groove 15 has a ring wall 151 and a bottom wall 152. The front end of the ring wall 151 has a ring-shaped baffle 153 with a diameter smaller than that of the ring wall 151. The ring wall 151 has a number of positioning protrusions 154 disposed toward the center.

A first set of connection holes 16 that penetrate forward and backward are axially arranged at the center of the bottom wall 152 corresponding to the position of the central axis 13. A first positioning groove 161 that has a larger diameter than the first set of connection holes 16 and can be axially positioned is arranged at the center of the first set of connection holes 16. At least one first stop surface 162 that is not circular and is a plane and can prevent the first pin 3 from rotating is arranged at the circumferential portion of the first positioning groove 161. The first stop surface 162 is provided with a first stop edge 163 protruding toward the center. A second set of connection holes 17 that penetrate forward and backward are arranged at the bottom wall 152 near the annular wall 151 corresponding to the position of the annular wall 151. A second positioning groove 171 that can be axially positioned is arranged in front of the second set of connection holes 17. The second positioning groove 171 has a front abutment surface 172 at the rear, and the width of the second group connection hole 17 at the rear is smaller than the diameter of the second positioning groove 171, and at least one non-arc-shaped and flat second abutment surface 173 is provided at the rear part of the second positioning groove 171 to prevent the second pin 4 from rotating. In this embodiment, two relatively parallel second abutment surfaces 173 are provided at the second group connection hole 17, and the second abutment surface 173 and the second group connection hole 17 are provided with a second abutment edge 174 protruding toward the center. An external threaded portion 18 is provided at the outer edge of the housing 1.

The clip 2 is made of a metal material with good elasticity and is an arc-shaped sheet disposed at the annular wall 151 of the sleeve slot 15 of the housing 1. Its axial length is slightly smaller than the distance between the bottom wall 152 and the baffle 153 of the sleeve slot 15, and the front has a clamping portion 21 that shrinks toward the center and has a diameter smaller than the rear diameter of the clip 2. The clamping portion 21 is provided with a groove 22 that can engage with the protrusion 154 at the position corresponding to the protrusion 154 of the sleeve slot 15, and a guide slope 23 with a diameter that gradually decreases toward the rear is provided on the front inner wall. A notch 24 is provided at the position of the clip 2 corresponding to the second set of holes 17 of the housing 1, and the clip 2 can be arranged at the position of the annular wall 151 of the sleeve groove 15 of the housing 1, and the groove 22 is engaged with the protrusion 154, so that the clip 2 can be axially positioned by the front end of the groove 22 abutting against the protrusion 154 and the rear end of the clip 2 abutting against the bottom wall 152, and the engagement of the groove 22 and the protrusion 154 ensures that the clip 2 will not rotate and the position of the notch 24 will not change. The rear of the clip 2 can be abutted against the annular wall 151 of the sleeve groove 15, and the clamping part 21 and the annular wall 151 of the sleeve groove 15 have a space 25 that can be deformed and expanded under force as shown in FIG. 5.

The first pin 3 is made of a material different from that of the clip 2 and having better conductivity and signal transmission. The material can be tellurium copper and the surface can also be silver-plated. The first pin 3 is a straight strip and is arranged at the first group of connection holes 16 of the housing 1. The front section protrudes from the front end of the housing 1, and the rear section has a first electrical connection portion 31 protruding from the rear end of the housing 1. The first convex ring 32 is arranged at the center of the first pin 3 corresponding to the first positioning groove 161 of the housing 1, and the first convex ring 32 is arranged at the position corresponding to the first abutment surface 162 of the housing 1. The first abutment surface 33 which is non-circular and flat is arranged. When the first protruding ring 32 is disposed in the first positioning groove 161, the front and rear ends of the first protruding ring 32 can be abutted by the front and rear end walls of the first positioning groove 161 to ensure that the first pin 3 will not be axially displaced corresponding to the housing 1. The first abutting surface 33 corresponds to the first abutting surface 162, and the first abutting edge 163 is pressed against the first abutting surface 33 to ensure that the first pin 3 will not rotate corresponding to the housing 1.

The second pin 4 is made of a material different from that of the clip 2 and having better conductivity and signal transmission. The material can be tellurium copper and the surface can also be silver-plated. The second pin 4 is a straight strip and is located at the second set of holes 17 of the housing 1. Its front section is located at the socket groove 15 of the housing 1 and the position corresponding to the notch 24 of the clip 2. A protrusion 41 is provided at its front end toward the central axis 13 of the housing 1. The rear section of the second pin 4 has a second electrical connection portion 42 protruding from the rear of the housing 1. A second convex ring 43 is provided at the center of the second pin 4 at a position corresponding to the second positioning groove 171 of the second set of connecting holes 17, and a second abutting surface 44 is concave at the rear of the second convex ring 43 at a position corresponding to the second abutting surface 173. The second abutting surface 44 can abut against the second abutting edge 174, and the rear end of the second abutting surface 44 has a rear abutting surface 45 that can abut against the rear end of the housing 1. The rear end of the second protrusion 43 of the second pin 4 can abut against the front abutment surface 172 of the shell 1, and the rear abutment surface 45 of the rear end of the second pin 4 can abut against the rear end of the shell 1 to ensure that the second pin 4 will not axially displace with respect to the shell 1. The position correspondence between the second abutment surface 44 and the second abutment surface 173 can ensure that the second pin 4 will not rotate with respect to the shell 1.

The coupling column 5 is a hollow column made of hard material, with an inner threaded portion 51 on the front inner edge and coupled with the outer threaded portion 18 of the housing 1 , and the convex ring portion 141 of the housing 1 is located on the outer side of the front end of the coupling column 5 .

In the present invention, the housing 1 and the first pin 3 and the second pin 4 are designed to be separable, so the first electrical connection portion 31 behind the first pin 3 and the second electrical connection portion 42 behind the second pin 4 can be welded to the electrical connection wire 6 before the housing 1 and the clip 2 are assembled, thereby preventing the plastic housing 1 from melting and being damaged during the welding process.

The present invention separates the first shell 11 and the second shell 12 of the shell 1, and then assembles the clip 2, the first pin 3, and the second pin 4 on the first shell 11 or the second shell 12. After the assembly, the buckle hole 111 of the first shell 11 and the buckle hole 111 of the second shell 12 are buckled and positioned, and the outer threaded portion 18 of the shell 1 is screwed with the inner threaded portion 51 of the coupling column 5 to ensure that the first shell 11 and the second shell 12 will not be separated.

After the assembly of the present invention, the clamping piece 2 is positioned by the groove 22 and the protrusion 154 so that the clamping piece 2 will not rotate relative to the housing 1, which can ensure that the notch 24 of the clamping piece 2 corresponds to the second pin 4 and does not contact the second pin 4, so that the clamping piece 2 can only be used for clamping without signal transmission. In addition, the first pin 3 is axially positioned by the first protrusion 32 and the first positioning groove 161, and the first abutment surface 33 and the first blocking surface 162 are correspondingly engaged to ensure that the first pin 3 will not be axially displaced and rotate relative to the housing 1 after assembly. The second pin 4 is engaged with the second positioning groove 171 by the second protruding ring 43, and the second abutting surface 44 is correspondingly engaged with the second blocking surface 173 to ensure that the second pin 4 will not be axially displaced and the corresponding housing 1 will not rotate after assembly, which can have better assembly stability.

Please refer to Figures 6 and 7. The signal connector of the present invention can be plugged into the socket 7 for signal transmission. When plugged in, the front section of the first pin 3 can be inserted into the positive slot 71 in the center of the socket 7, and the negative outer edge 72 of the socket 7 can be inserted into the socket slot 15 of the housing 1 and its outer edge 72 can be electrically connected to the protrusion 41 of the second pin 4. When plugged in, the guiding inclined surface 23 of the clip 2 can enhance the convenience of better insertion, and the clamping part 21 can be displaced in the direction of the ring wall 151 of the socket slot 15 and stably clamp the socket 7 by its elastic force. The elastic force of the clip 2 is better than that of plastic and traditional thick metal connectors, and can have better stability in connecting the socket 7.

The clip 2 of the present invention only has the function of clamping, so the clip 2 does not need to use expensive metal materials with good conductivity and signal transmission. The present invention only needs to use small-volume first pin 3 and second pin 4 with good conductivity and signal transmission materials to achieve excellent signal transmission effect, which can reduce finished products and have high quality effects.

In addition, the metal clip 2, the first pin 3, the second pin 4 and the plastic housing 1 of the present invention are easily separable components, so the present invention can be easily separated and recycled to protect the environment.

Therefore, from the above, the present invention can have better plugging stability, better signal transmission, prevent shell welding damage, and environmental protection effects. The above embodiments are illustrative of the present invention and are not limited to the present invention. Any equivalent changes made according to the spirit of the present invention should also fall within the scope of the present invention.

1: Shell

11: First Shell

111: Button hole

12: Second shell

121: Button

13: Center axis

14: End ring

141: convex ring

15: socket slot

151: Ring Wall

152: Bottom wall

153:Block

154: Convex

16: The first set of holes

161: first positioning groove

162: First stop surface

163: The first place of support

17: The second set of ports

171: Second positioning groove

172: front abutment surface

173: Second stop surface

174: The Second Edge of Support

18: External thread

2: Clip

21: Clamping part

22: Groove

23: Guide bevel

24: Gap

25: Space

3: First pin

31: First electrical connection portion

32: First convex ring

33: First contact surface

4: Second pin

41: protrusion

42: Second electrical connection portion

43: Second convex ring

44: Second contact surface

45: Rear abutment surface

5:Joint column

51: Internal thread

6: Electrical connection line

7: Socket

71: Slot

72: External Edge

FIG. 1 is an exploded view of the signal connector of the present invention.

FIG. 2 is an assembly diagram of the housing, the clip, the first pin, and the second pin of the signal connector of the present invention.

FIG. 3 is an overall assembly diagram of the signal connector of the present invention.

FIG. 4 is a schematic diagram of the signal connector of the present invention corresponding to the A-A cross-sectional view of FIG. 3 and the combined electrical connection line.

FIG. 5 is a cross-sectional view of the signal connector of the present invention corresponding to the B-B view of FIG. 3 .

FIG. 6 is a cross-sectional view of the signal connector and the socket of the present invention.

FIG. 7 is a cross-sectional view of the signal connector and the socket of the present invention.

1: Shell

11: First shell

111: Buttonhole

12: Second shell

121: Button body

14: End ring

141: convex ring part

15: socket slot

151: Ring wall

152: Bottom wall

153:Blocking edge

154: convex body

16: The first set of ports

161: First positioning groove

162: First blocking surface

163: The first reliance

17: The second set of ports

171: Second positioning groove

172: Front abutment surface

173: Second blocking surface

174: The second affiliation

18: External thread part

2: Clip

21: Clamping part

22: Groove

23: Bevel guide surface

24: Gap

3: First pin

31: First electrical connection part

32: First convex ring

33: First contact surface

4: Second pin

41: protrusion

42: Second electrical connection part

43: Second convex ring

44: Second contact surface

45: Rear abutment surface

5:Joint column

51: Internal thread part

Claims (10)

A signal connector includes: A housing made of hard plastic material, having a first housing and a second housing that can be connected to form a cylindrical shape, the housing having a central axis and an end ring at the front end, a sleeve groove recessed toward the rear is arranged in the center of the end ring, the sleeve groove has an annular wall and a bottom wall, and a first set of connection holes axially penetrating forward and backward are arranged in the center of the bottom wall corresponding to the central axis position; and a second set of connection holes axially penetrating forward and backward are arranged in the bottom wall near the annular wall position; A clip, made of metal material, and is an arc-shaped sheet arranged at the annular wall position of the sleeve groove of the housing, and has a flexible clamping part at the front; A first pin is a straight bar-shaped body disposed at the first set of connection holes of the housing, and its front section protrudes from the front end of the housing, and its rear section has a first electrical connection portion protruding from the rear end of the housing; A second pin is a straight bar-shaped body disposed at the second set of connection holes of the housing, and its front section is located in the socket groove of the housing, and its rear section has a second electrical connection portion protruding from the rear of the housing; A coupling column is coupled to the housing at the front. The signal connector as described in claim 1, wherein the clip and the first pin and the second pin are made of different metal materials, and a notch is set in the clip corresponding to the second set of connection holes of the housing, which penetrates axially and does not contact the second pin. A signal connector as described in claim 1, wherein the front end of the annular wall of the socket groove of the housing has an annular baffle with a diameter smaller than the diameter of the annular wall, and the annular wall is provided with at least one protrusion toward the center, and the axial length of the clamp is slightly smaller than the distance between the bottom wall of the socket groove and the baffle, and the clamping part is in front of the clamping part and shrinks toward the center, and the clamping part and the annular wall of the housing have space for elastic displacement of the clamping part, and the clamping part is provided with a groove that can engage with the protrusion at the position of the protrusion of the socket groove. A signal connector as described in claim 3, wherein the inner wall of the front end of the clamping portion is provided with a guide slope with a diameter gradually decreasing toward the rear. A signal connector as described in claim 1, wherein a first positioning groove having a diameter larger than that of the first group of connecting holes is disposed in the center of the first group of connecting holes of the housing, a first stopping surface for preventing the first pin from rotating is disposed around the first positioning groove, a first protrusion is disposed in the center of the first pin at a position corresponding to the first positioning groove of the housing, and a first abutment surface is disposed at a position of the first protrusion corresponding to the first stopping surface of the housing. A signal connector as described in claim 5, wherein the first abutment surface has a first abutment edge protruding toward the center and capable of abutting against the first abutment surface. A signal connector as described in claim 1, wherein a second positioning groove is arranged in front of the second set of connection holes of the housing, a front abutment surface is provided at the rear of the second positioning groove, the rear width of the second set of connection holes is smaller than the diameter of the second positioning groove, a second abutment surface is provided at a portion of the rear of the second positioning groove, a second protrusion is provided at the center of the second pin corresponding to the second positioning groove of the second set of connection holes, a concave second abutment surface is provided at the rear of the second protrusion corresponding to the second abutment surface, and the rear end of the second abutment surface has a rear abutment surface that can abut against the rear end of the housing. A signal connector as described in claim 7, wherein the second abutment surface is provided with a second abutment edge protruding toward the center and capable of abutting against the second abutment surface. As described in claim 1, the first shell part and the second shell part of the shell are approximately symmetrical semi-cylindrical, and a buckle hole and a buckle body that can be buckled with each other are respectively arranged corresponding to the circumferential direction of the shell. The signal connector as described in claim 1, wherein the outer edge of the housing is provided with an external threaded portion; and the front inner edge of the coupling post is provided with an internal threaded portion that can be coupled with the external threaded portion of the housing.

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