Electrical Connection Device

Abstract

To provide an electrical connection device that certainly avoids power instantaneous interruption and signal interruption.SOLUTION: An electrical connection device includes a plug connector 20. The plug connector includes a conductive body, an outer conductor, an insulative body, and a central terminal. The outer conductor has a rear end, a front latching portion, and an elastic piece. The rear end electrically connects the conductive body, the front latching portion is opposite to the rear end and is positioned in front of the rear end, and the elastic piece is positioned between the rear end and the front latching portion and connects the front latching portion. At least one of the conductive body and outer conductor is formed with a stopping surface, and a position of the stopping surface corresponds to the elastic piece of the outer conductor and is close to the front latching portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This application claims the benefit of and priority to Chinese Patent Application No. 202211471880.1, entitled "Electrical Connection Device," filed on November 23, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to an electrical connection device, and more particularly to an electrical connection device in which a coaxial connector mates with a mating connector. [Background technology]

[0003] Existing microminiature coaxial (MMCX) connectors typically latch onto conductors with a C-shaped latch ring that acts as a latching structure that locks onto the mating connector.

[0004] When a microminiature coaxial connector is mated with a mating connector and vibrates, a gap exists between the C-shaped latch ring and the conductor, making the C-shaped latch ring and the conductor highly susceptible to power interruptions or signal disruption when transmitting current or signals, thereby impairing the functionality of the C-shaped latch ring and the conductor. A gap also exists between the conductor and the mating connector, making the microminiature coaxial connector highly susceptible to vibration relative to the mating connector, resulting in poor transmission stability. Furthermore, because the C-shaped latch ring is short in length and has poor elasticity, repeated insertion and withdrawal of the microminiature coaxial connector easily causes elastic fatigue in the C-shaped latch ring, deforming it, resulting in poor transmission stability and even power interruptions or signal disruption. For the reasons mentioned above, existing microminiature coaxial connectors, such as the connector disclosed in Chinese Patent No. 207504225(U), cannot be applied to environments that require current application and transmission, such as sound source equipment or automobile rearview mirror fatigue detection.

[0005] To overcome the problem of power interruption or signal interruption, some connectors, such as the connector disclosed in Chinese Patent No. 209786238(U), provide a latch structure at the front end of the microminiature coaxial connector. However, such a structure cannot be applied to existing mating connectors that comply with the MMCX standard. Therefore, a new mating connector must be redesigned to match, which increases manufacturing costs. Summary of the Invention

[0006] Therefore, an object of the present disclosure is to provide an electrical connection device that can improve at least one drawback in the prior art.

[0007] Therefore, the electrical connection device of the present disclosure includes a plug connector. The plug connector includes a conductor, an outer conductor, an insulator, and a center terminal. The outer conductor has a rear end, at least one front latch portion, and at least one elastic piece. The rear end electrically connects the conductor, the front latch portion is located opposite and forward of the rear end, and the elastic piece is located between the rear end and the front latch portion to connect the front latch portion. At least one of the conductor and the outer conductor has a locking surface, and the position of the locking surface corresponds to the position of the elastic piece of the outer conductor and is adjacent to the front latch portion. The insulator is provided within the conductor. The center terminal is provided within the insulator.

[0008] In some embodiments, the resilient piece is formed with a locking surface.

[0009] In some embodiments, the resilient piece has a shoulder, the shoulder having a shoulder surface, the shoulder surface forming a locking surface.

[0010] In some embodiments, the electrical conductor has an annular peripheral wall extending forward and surrounding the resilient piece, the annular peripheral wall having a front end surface, the front end surface forming the locking surface.

[0011] In some embodiments, the resilient piece has a shoulder. The shoulder has a shoulder surface. The electrical conductor has an annular peripheral wall extending forward and surrounding the resilient piece. The annular peripheral wall has a front end surface. The shoulder surface and the front end surface together form a locking surface.

[0012] In some embodiments, the outer conductor has at least one slit formed therein, the slit extending from the front latch portion to proximate the rear end, the slit having an opening located in the front latch portion and a closed portion opposite the open portion and proximate the rear end.

[0013] In some embodiments, the outer conductor has a plurality of front latch portions and a plurality of resilient pieces, and a plurality of slits formed therein, each slit extending from two corresponding adjacent front latch portions to proximate the rear end, and each slit being located between two corresponding adjacent front latch portions and between two corresponding adjacent resilient pieces.

[0014] In some embodiments, the outer conductor further includes a through gap extending from two corresponding adjacent front latch portions to the rear end, the through gap having two through openings located between the two corresponding adjacent front latch portions and at the rear end, respectively.

[0015] In some embodiments, the outer conductor has a through gap formed therein, the through gap extending from the front latch portion to the rear end, and the through gap having two through openings located in the front latch portion and the rear end, respectively.

[0016] In some embodiments, the electrical conductor is a one-piece component and has an annular groove that opens to the outside. The outer conductor covers the electrical conductor, forming a through gap. The through gap extends from the forward latch portion to the rear end. The outer conductor has an inner flange connected to the rear end. The inner flange snaps into the annular groove and applies a resilient force to clamp the electrical conductor.

[0017] In some embodiments, the electrical conductor is an integral component. The rear end of the outer conductor is integrally connected to the electrical conductor. The outer conductor and the electrical conductor are integrally formed to together constitute an integral component. The insulator has a providing segment provided to the electrical conductor and the outer conductor, and a head segment formed at a front end of the providing segment and protruding from a front end of the forward latch portion.

[0018] In some embodiments, the electrical conductor may be a one-piece component, with a forward-opening annular channel formed therein. The outer conductor has a through gap formed therein extending from the forward latch portion to the rear end. The outer conductor covers the electrical conductor and applies a resilient force to clamp the electrical conductor. The rear end and the resilient piece are housed within the annular channel, and the forward latch portion is exposed from the annular channel.

[0019] In some embodiments, the outer conductor has a plurality of front latch portions and a plurality of resilient pieces, and a plurality of slits are formed. The through gap extends from two corresponding adjacent front latch portions to the rear end. Each slit extends from two corresponding adjacent front latch portions to proximate the rear end. Each slit is located between two corresponding adjacent front latch portions and between two corresponding adjacent resilient pieces. Each resilient piece has a first resilient piece body connected to the corresponding front latch portion and a second resilient piece body extending rearward from the first resilient piece body and applying a resilient force to contact the conductor.

[0020] In some embodiments, the electrical conductor is a one-piece component, forming a forwardly opening annular channel. The outer conductor further has an outer flange connected to the rear end. The outer conductor covers the electrical conductor and the rear end, and the outer flange is received within the annular channel. The electrical conductor has an annular latch pressure wall extending forward and surrounding the annular channel. The front end of the annular latch pressure wall is deformed to bend inward and latch onto and press against the outer flange.

[0021] In some embodiments, the electrical conductor includes a first conductive member and a second conductive member disposed within the first conductive member and partially protruding from a front end of the first conductive member. The first conductive member and the second conductive member together define an annular channel that opens forward. The outer conductor further includes an outer flange connected to the rear end. The rear end, the elastic piece, and the outer flange are housed within the annular channel. A front latch portion is exposed from the annular channel and protrudes from the front end of the first conductive member. The outer flange is clamped by the first conductive member and the second conductive member.

[0022] In some embodiments, the electrical conductor includes a first conductive member, a second conductive member disposed within the first conductive member and partially protruding from the front end of the first conductive member, and a third conductive member disposed within the first conductive member and partially protruding from the rear end of the first conductive member. The first conductive member and the second conductive member together define an annular channel that opens forward. The outer conductor further includes an outer flange connected to the rear end of the outer conductor. The rear end of the outer conductor, the elastic piece, and the outer flange are housed within the annular channel. A forward latch portion is exposed from the annular channel and protrudes from the front end of the first conductive member. The outer flange is clamped by the first conductive member and the second conductive member.

[0023] In some embodiments, the electrical conductor includes a first conductive member and a second conductive member. The rear end of the outer conductor is integrally connected to the first conductive member. The outer conductor and the first conductive member are integrally formed to form a one-piece component. The second conductive member is disposed within the first conductive member and the outer conductor and partially protrudes from the front end of the forward latch portion.

[0024] In some embodiments, the electrical conductor has a first conductive member and a second conductive member. The rear end of the outer conductor is integrally connected to the first conductive member. The outer conductor and the first conductive member are integrally formed to form a one-piece component. The second conductive member is disposed within the first conductive member and the outer conductor and partially protrudes from the front end of the forward latch portion. The insulator has a providing segment disposed on the second conductive member and a head segment formed at the front end of the providing segment and protruding from the front end of the second conductive member.

[0025] In some embodiments, the electrical conductor includes a first conductive member and a second conductive member. The rear end of the outer conductor is integrally connected to the first conductive member. The outer conductor and the first conductive member are integrally formed to form a one-piece component. The second conductive member is disposed within the first conductive member and the outer conductor and partially protrudes from the front end of the forward latch portion, and the first conductive member has an inner interfering circumferential wall that interfers with the second conductive member.

[0026] In some embodiments, the electrical conductor includes a first conductive member and a second conductive member disposed within the first conductive member and partially protruding from a front end of the first conductive member. The first conductive member has an inner interfering circumferential wall. The second conductive member interferes with the inner interfering circumferential wall, and an annular recessed groove is formed therein, opening outward. The first conductive member and the second conductive member together define an annular channel that opens forward and communicates with the annular recessed groove. The outer conductor may cover the second conductive member, and a through gap may be formed therethrough. The through gap extends from the forward latch portion to the rear end. The outer conductor further has an inner flange connected to the rear end. The rear end, the elastic piece, and the inner flange are housed within the annular channel. The forward latch portion is exposed from the annular channel. The inner flange is snap-fitted into the annular recessed groove, applying an elastic force to clamp the second conductive member.

[0027] In some embodiments, the front end of the front latch portion has a front abutment surface.

[0028] In some embodiments, the forward latch portion is a protrusion. The center terminal is a male terminal. The electrical connection device further includes a receptacle connector. The receptacle connector includes an outer shell, an insulator disposed within the outer shell, and a female terminal disposed within the insulator and used to electrically connect the center terminal. The outer shell is formed with an inner annular groove used to enable the forward latch portion to latch therein. The outer shell has a mating end face used to abut a locking surface thereon. When the plug connector is mated with the receptacle connector, the forward latch portion latches into the inner annular groove. The locking surface firmly abuts against the mating end face.

[0029] In some embodiments, the outer shell further includes a forward inner conical surface surrounding the inner annular groove and spaced apart from and positioned forward of the mating end face, and the forward latch portion includes an arcuate surface that latches onto and applies a thrust force to the forward inner conical surface to promote firm abutment of the locking surface against the mating end face when the plug connector is mated with the receptacle connector.

[0030] In some embodiments, the outer shell further includes a front locking surface spaced apart from the front inner conical surface, located forward of the front inner conical surface and surrounding the inner annular groove. The front latch portion further includes a front abutment surface connected to the front end of the arcuate surface and used to abut against the front locking surface. When the plug connector is mated with the receptacle connector, the front abutment surface firmly abuts against the front locking surface.

[0031] The present disclosure has the effect that at least no gap occurs between the external conductor and the conductor, no gap occurs between the locking surface and the mating end surface, each elastic piece has better elasticity, can withstand repeated insertion and withdrawal, is less likely to deform, can ensure stability in the transmission of current or signals, and can also avoid the occurrence of momentary power outages or signal interruptions. [Brief explanation of the drawings]

[0032] Other features and advantages of the present disclosure will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings.

[0033] [Figure 1] 1 is an exploded perspective view of a first embodiment of the electrical connecting device of the present disclosure, showing the assembled relationship between a receptacle connector and a plug connector. FIG. [Figure 2] FIG. 2 is an exploded cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 1 is an exploded perspective view of a first embodiment. [Figure 4] FIG. 4 is an exploded perspective view of the first embodiment as seen from another angle. [Figure 5] 3 is a cross-sectional view similar to FIG. 2 showing the plug connector mated with the receptacle connector. [Figure 6] 1 is a cross-sectional view of a second embodiment of the electrical connection device of the present disclosure. [Figure 7] FIG. 10 is a perspective view of a plug connector of a third embodiment of the electrical connecting device of the present disclosure. [Figure 8] FIG. 10 is an exploded perspective view of a plug connector according to a third embodiment. [Figure 9] FIG. 10 is a cross-sectional view of the third embodiment. [Figure 10] FIG. 10 is a perspective view of a plug connector of a fourth embodiment of the electrical connecting device of the present disclosure. [Figure 11] FIG. 10 is an exploded perspective view of a plug connector according to a fourth embodiment. [Figure 12] FIG. 10 is a cross-sectional view of the fourth embodiment. [Figure 13] FIG. 10 is a perspective view of a plug connector of a fifth embodiment of the electrical connecting device of the present disclosure. [Figure 14] FIG. 10 is an exploded perspective view of a plug connector according to a fifth embodiment. [Figure 15] FIG. 10 is a cross-sectional view of the fifth embodiment. [Figure 16] FIG. 10 is an exploded perspective view of a plug connector of a sixth embodiment of the electrical connecting device of the present disclosure. [Figure 17] FIG. 10 is a cross-sectional view of the sixth embodiment. [Figure 18] FIG. 10 is a perspective view of a plug connector of a seventh embodiment of the electrical connecting device of the present disclosure. [Figure 19] FIG. 13 is an exploded perspective view of a plug connector according to a seventh embodiment. [Figure 20] FIG. 10 is a cross-sectional view of the seventh embodiment. [Figure 21] FIG. 13 is a perspective view of a plug connector of an eighth embodiment of the electrical connecting device of the present disclosure. [Figure 22] FIG. 13 is an exploded perspective view of a plug connector according to an eighth embodiment. [Figure 23] FIG. 13 is a cross-sectional view of the eighth embodiment. [Figure 24] FIG. 13 is a perspective view of a plug connector of a ninth embodiment of the electrical connecting device of the present disclosure. [Figure 25] FIG. 13 is an exploded perspective view of a plug connector according to a ninth embodiment. [Figure 26] FIG. 13 is a cross-sectional view of the ninth embodiment. [Figure 27] FIG. 20 is an exploded perspective view of a plug connector of a tenth embodiment of the electrical connecting device of the present disclosure. [Figure 28] FIG. 19 is a cross-sectional view of the tenth embodiment. [Figure 29] FIG. 23 is an exploded perspective view of a plug connector of an eleventh embodiment of the electrical connecting device of the present disclosure. [Figure 30] FIG. 11 is a cross-sectional view of the eleventh embodiment. [Figure 31] FIG. 23 is an exploded perspective view of a plug connector of a twelfth embodiment of the electrical connecting device of the present disclosure. [Figure 32] FIG. 12 is a cross-sectional view of the twelfth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0034] Before describing the present disclosure in detail, it should be noted that like elements are designated with the same reference numerals in the following description.

[0035] Referring to FIG. 1, a first embodiment of an electrical connection device 100 of the present disclosure includes a receptacle connector 10 and a plug connector 20 used to mate with the receptacle connector 10 .

[0036] For the convenience of the following description, in the electrical connection device 100, a first direction D1, a second direction D2 perpendicular to the first direction D1, and a third direction D3 perpendicular to the first direction D1 and the second direction D2 are defined. In the first embodiment, the first direction D1 is taken as an example of the front-to-rear direction, where the direction indicated by the arrow in FIG. 1 is the front, and the direction opposite to the front is the rear. The second direction D2 is taken as an example of the left-to-right direction, where the direction indicated by the arrow in FIG. 1 is the left, and the direction opposite to the left is the right. The third direction D3 is taken as an example of the up-down direction, where the direction indicated by the arrow in FIG. 1 is the up, and the direction opposite to the up is the down.

[0037] 2, 3, and 4, the receptacle connector 10 includes an outer shell 11, an insulator 12, and a female terminal 13. For example, the outer shell 11 is a conductor made of a metal material. The outer shell 11 is formed with a positioning groove 110, a through hole 111 communicating with the rear end of the positioning groove 110, an insertion groove 112 communicating with the rear end of the through hole 111, and an inner annular groove 113 communicating with the outer periphery of the insertion groove 112 and adjacent to the rear end of the insertion groove 112. The positioning groove 110 is used to accommodate the insulator 12 therein. The insertion groove 112 and the inner annular groove 113 are used to insert the plug connector 20 therein.

[0038] The outer shell 11 has a plurality of connection blocks 114, a mating end face 115, a rearward inner conical surface 116, an inner annular surface 117, and a forward inner conical surface 118. The plurality of connection blocks 114 face forward and can be welded to a circuit board (not shown), for example, by welding. The mating end face 115 is annular, faces rearward, and faces the plurality of connection blocks 114. The mating end face 115 is spaced a fixed distance from the inner annular groove 113 along the first direction D1 and is used to abut the plug connector 20 thereto. The rearward inner conical surface 116 extends obliquely forward and inward from the inner edge of the mating end face 115. The inner annular surface 117 extends forward from the leading edge of the rearward inner conical surface 116. The forward inner conical surface 118 extends obliquely forward and outward from the leading edge of the inner annular surface 117 and surrounds the inner annular groove 113.

[0039] The insulator 12 is disposed in the positioning groove 110 of the outer shell 11. The female terminal 13 is disposed in the through hole 111 of the insulator 12 and the outer shell 11, and extends partially into the insertion groove 112.

[0040] The plug connector 20 includes a conductor 2, an outer conductor 3, an insulator 4, a center terminal 5, a cover 6, a cable 7, and a bushing 8. The conductor 2 and the outer conductor 3 are made of, for example, a metal material. The outer conductor 3 has a rear end 31, at least one front latch portion 32, and at least one elastic piece 33. The rear end 31 electrically connects the conductor 2. The front latch portion 32 faces the rear end 31 and is located forward of the rear end 31. The elastic piece 33 is located between the rear end 31 and the front latch portion 32 and connects the front latch portion 32. At least one of the conductor 2 and the outer conductor 3 has a locking surface, which corresponds to the elastic piece 33 of the outer conductor 3 and is adjacent to the front latch portion 32. The locking surface is used to lock the mating end face 115 of the receptacle connector 10 so as to limit the depth to which the plug connector 20 is inserted into the receptacle connector 10.

[0041] In the first embodiment, the plug connector 20 is a right-angle connector. The conductor 2 has a first conductive member 21 and a second conductive member 22. The first conductive member 21 has an outer casing 210, an annular peripheral wall 211, and a guide post 212. The outer casing 210 is in the form of a hollow rectangular shell, and the interior of the outer casing 210 has a rear engagement surface 213 facing rearward. The annular peripheral wall 211 extends forward from the front end of the outer casing 210 and has a front end surface 214, which forms the engagement surface 215 used to abut against the mating end surface 115. The guide post 212 is in the form of a hollow cylinder and extends downward from the lower end of the outer casing 210. The second conductive member 22 has an annular barrel shape and is assembled to the outer casing 210 of the first conductive member 21 from rear to front, with the second conductive member 22 being disposed within the outer casing 210 and the annular peripheral wall 211 and partially protruding from a front end face 214. The second conductive member 22 has an annular face 221 facing forward and spaced apart from and positioned rearward of the rear engagement face 213. The first conductive member 21 and the second conductive member 22 together define an annular channel 216 that opens forward.

[0042] In the first embodiment, the outer conductor 3 is an annular component formed by stamping. The outer conductor 3 has a plurality of front latch portions 32, a plurality of resilient pieces 33, and an outer flange 34. The plurality of front latch portions 32 are arranged in an annular shape, and the plurality of resilient pieces 33 are also arranged in an annular shape. Each front latch portion 32 is connected to the front end of a corresponding resilient piece 33 and is a protrusion used to latch into the inner annular groove 113 of the receptacle connector 10. Each front latch portion 32 has an arcuate surface 321 used to latch into the front inner conical surface 118. The outer flange 34 is connected to the rear end 31. A plurality of slits 35 are formed in the outer conductor 3, and each slit 35 extends from two corresponding adjacent front latch portions 32 to approach the rear end 31, and each slit 35 is located between two corresponding adjacent front latch portions 32 and between two corresponding adjacent resilient pieces 33. Each slit 35 has an opening portion 351 located between two corresponding adjacent front latch portions 32 and a closing portion 352 opposite the opening portion 351 and adjacent to the rear end 31 .

[0043] The outer conductor 3 is assembled to the outer casing 210 of the first conductive member 21 from rear to front, and the outer conductor 3 is disposed within the outer casing 210 and the annular surrounding wall 211, partially protruding from the front end face 214. The rear end 31 of the outer conductor 3, the multiple elastic pieces 33, and the outer flange 34 are housed in the annular channel 216. The outer flange 34 is clamped by the rear locking surface 213 of the first conductive member 21 and the annular surface 221 of the second conductive member 22. The multiple front latch portions 32 are exposed from the annular channel 216 and protrude from the front end face 214 of the first conductive member 21.

[0044] The insulator 4 is provided within the second conductive member 22 of the conductor 2. The center terminal 5 is a male terminal provided within the insulator 4. The center terminal 5 protrudes from the front and rear ends of the insulator 4 and is used to electrically connect to the female terminal 13 of the receptacle connector 10. The cover 6 is assembled within the outer casing 210 of the first conductive member 21 and closes the rear end of the outer casing 210. The cable 7 is provided within the outer casing 210 and the guide post 212 of the first conductive member 21 and is electrically connected to the center terminal 5. The bushing 8 covers the guide post 212 of the first conductive member 21 and is used to cover the connection position between the cable 7 and the guide post 212.

[0045] The outer flange 34 of the outer conductor 3 is clamped by the rear engagement surface 213 of the first conductive member 21 and the annular surface 221 of the second conductive member 22, so that the outer flange 34 can be firmly fixed between the first conductive member 21 and the second conductive member 22 to prevent a gap from occurring between the outer flange 34 and the first conductive member 21 or between the outer flange 34 and the second conductive member 22, and a contact state is maintained between the outer flange 34, the first conductive member 21, and the second conductive member 22. This ensures the stability of current or signal transmission through the outer conductor 3 and the conductor 2 to prevent a power outage or an interruption of a generated signal. Furthermore, since only the front latch portions 32 of the outer conductor 3 are exposed from the annular channel 216 and the entire remaining portion of the outer conductor 3 is housed within the annular channel 216, the second conductive member 22 and the first conductive member 21 of the conductor 2 can function to protect the elastic pieces 33 from the inside and outside of the elastic pieces 33, respectively. This makes it possible to prevent the elastic pieces 33 from being damaged by human influence.

[0046] 2 and 5 , when the plug connector 20 is mated with the receptacle connector 10, a portion of the second conductive member 22 of the plug connector 20 protruding from the front end face 214 and the plurality of front latch portions 32 of the outer conductor 3 are aligned with the insertion groove 112 and the rear inner conical surface 116 of the receptacle connector 10, respectively. Next, the plug connector 20 is moved toward the receptacle connector 10 along the first direction D1. As the plug connector 20 moves, the portion of the second conductive member 22 protruding from the front end face 214 is first inserted into the insertion groove 112. Then, the arcuate surface 321 of each front latch portion 32 contacts and is blocked by the rear inner conical surface 116. The force applied to the arcuate surfaces 321 by the rear inner conical surface 116 urges the front latch portions 32, displacing and flexibly deforming the corresponding elastic pieces 33 connected to the front latch portions 32 toward the second conductive member 22, accumulating elastic restoring force and allowing the arcuate surfaces 321 of the front latch portions 32 to move forward along the rear inner conical surface 116. At the same time, the center terminal 5 is inserted into and electrically connected to the female terminal 13. Then, the arcuate surfaces 321 move away from the rear inner conical surface 116 and contact the inner annular surface 117.

[0047] When the multiple arcuate surfaces 321 move away from the inner annular surface 117 and toward the inner annular groove 113, the elastic restoring force accumulated by each elastic piece 33 restores the corresponding front latch portion 32 connected to the elastic piece 33, allowing each front latch portion 32 to automatically latch into the inner annular groove 113 and latch onto the front inner conical surface 118 via the arcuate surface 321. When the arcuate surface 321 of each front latch portion 32 latches onto the front inner conical surface 118, the arcuate surface 321 applies a thrust T parallel to the first direction D1 and directed rearward to the front inner conical surface 118, so as to urge the locking surface 215 to firmly abut against the mating end surface 115. Therefore, it is possible to avoid the occurrence of a gap between the locking surface 215 and the mating end surface 115, and therefore the plug connector 20 can be securely mated with the receptacle connector 10 and will not vibrate relative to the receptacle connector 10, thereby promoting stability when transmitting current or signals.

[0048] When the plug connector 20 is removed from the receptacle connector 10, a force is applied along the first direction D1 to remove the plug connector 20 rearward. Because the arcuate surface 321 of each front latch portion 32 is blocked by the front inner conical surface 118, the force applied to the arcuate surface 321 by the front inner conical surface 118 urges the front latch portion 32 to displace and flexibly deform the corresponding elastic piece 33 connected to the front latch portion 32 toward the second conductive member 22, accumulating an elastic restoring force, so that the multiple arcuate surfaces 321 of the multiple front latch portions 32 can move rearward along the front inner conical surface 118. As the multiple arcuate surfaces 321 sequentially move away from the front inner conical surface 118 and the inner annular surface 117, the elastic restoring force accumulated by each elastic piece 33 restores the corresponding front latch portion 32 connected to the elastic piece 33, causing each front latch portion 32 to automatically return to its initial position shown in FIG. 2 .

[0049] 1 and 3, each slit 35 of the outer conductor 3 extends from two corresponding adjacent front latch portions 32 to approach the rear end 31, allowing each elastic piece 33 to occupy a certain length in the axial direction of the outer conductor 3. Therefore, each elastic piece 33 has better elasticity, can withstand repeated insertion and withdrawal, and is less likely to deform, so as to promote stability in transmitting current or signals and avoid power outages or interruptions in generated signals.

[0050] 1, 2, and 5, the outer flange 34 is clamped by the first conductive member 21 and the second conductive member 22, thereby preventing a gap between the outer flange 34 and the first conductive member 21 or the second conductive member 22. When the plug connector 20 is mated with the receptacle connector 10, the locking surface 215 firmly abuts against the mating end face 115, preventing a gap between the locking surface 215 and the mating end face 115. Because each slit 35 of the outer conductor 3 extends from the two corresponding adjacent front latch portions 32 to the rear end 31, each elastic piece 33 has better elasticity, can withstand repeated withdrawal, and is less likely to deform. The above structural design prevents power interruptions or signal interruptions in the electrical connection device 100 caused by vibration. Therefore, the plug connector 20 can be used in environments requiring current application and transmission, such as audio equipment or automobile rearview mirror fatigue detection.

[0051] Because the positions of the multiple front latch portions 32 of the outer conductor 3 are the same as the positions of the C-shaped latch rings of existing microminiature coaxial connectors, the receptacle connector 10 can be mated with the plug connector 20, provided that the receptacle connector 10 conforming to the MMCX specification does not need to be modified in structure to fit the plug connector 20. Therefore, since there is no need to redesign the structure of the receptacle connector 10 to match the plug connector 20, the overall manufacturing cost of the electrical connecting device 100 can be reduced.

[0052] It should be noted that the plug connector 20 of the first embodiment may also have one each of the front latch portion 32, the elastic piece 33, and the slit 35, and is not limited to the numbers disclosed by the first embodiment. In a modified implementation of the receptacle connector 10 of the first embodiment, the inner annular surface 117 may also be eliminated so that the rear inner conical surface 116 and the front inner conical surface 118 are directly connected to each other. In another modified implementation of the receptacle connector 10 of the first embodiment, the rear inner conical surface 116 may also be eliminated so that the inner annular surface 117 is directly connected to the mating end face 115.

[0053] Referring to FIG. 6, the second embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first embodiment in overall structure, with the difference between them being in the plug connector 20.

[0054] The outer shell 11 of the receptacle connector 10 further has a front locking surface 119 located forward of and spaced apart from the front inner conical surface 118, and surrounding the inner annular groove 113. Each front latch portion 32 of the outer conductor 3 further has a front abutment surface 322 connected to the front end of the arcuate surface 321, and the front abutment surface 322 is used to abut against the front locking surface 119. When the plug connector 20 is mated with the receptacle connector 10, the locking surface 215 and the front abutment surface 322 firmly abut against the mating end surface 115 and the front locking surface 119, respectively. This further promotes the reliability of the mating between the plug connector 20 and the receptacle connector 10.

[0055] 7, 8, and 9, the third embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first embodiment in overall structure, with the difference between them being in the plug connector 20.

[0056] The plug connector 20 is a straight connector. The outer casing 210 of the first conductive member 21 of the conductor 2 is sleeve-shaped, and the rear end of the outer casing 210 is open. An annular peripheral wall 211 extends forward from the front end of the outer casing 210. The conductor 2 further includes a third conductive member 23 having a hollow cylindrical shape. The third conductive member 23 is disposed within the outer casing 210 of the first conductive member 21, located rearward of the second conductive member 22, and partially protrudes from the rear end of the outer casing 210. A cable 7 is disposed within the third conductive member 23 and the insulator 4 and is electrically connected to the center terminal 5. A bushing 8 covers the third conductive member 23. The third embodiment provides another different form of the plug connector 20, and the plug connector 20 has the same effects as the plug connector 20 of the first embodiment.

[0057] Referring to Figures 10, 11, and 12, the fourth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first embodiment in overall structure, with the difference between them being in the plug connector 20.

[0058] The conductor 2 is a one-piece component similar in structure to the first conductive member 21 of the first embodiment. The conductor 2 has an outer casing 210, guide posts 212, and an annular circumferential wall 217. The annular circumferential wall 217 extends forward from the front end of the outer casing 210. The annular circumferential wall 217 is radially recessed to form an annular recessed groove 218 that opens outward adjacent the outer casing 210.

[0059] The outer conductor 3 covers the annular circumferential wall 217 of the electrical conductor 2, and a through gap 36 is formed. The through gap 36 extends from two corresponding adjacent front latch portions 32 to the rear end 31. The through gap 36 has two through openings 361, which are located between the two corresponding adjacent front latch portions 32 and at the rear end 31, respectively. Therefore, the cross section of the outer conductor 3 taken in a direction perpendicular to the axial direction of the outer conductor 3 is C-shaped so that the outer conductor 3 has a clamping elastic force that can clamp the annular circumferential wall 217. The outer conductor 3 further has an inner flange 37 connected to the rear end 31. The inner flange 37 is snap-fitted into the annular groove 218, and the inner flange 37 applies an elastic force to clamp the annular circumferential wall 217 of the electrical conductor 2 by the clamping elastic force.

[0060] Each elastic piece 33 of the outer conductor 3 has a shoulder 331. The shoulder 331 has a forward-facing shoulder surface 332 that is formed to be used for abutting against a locking surface 333 of the mating end face 115. Thus, each elastic piece 33 is formed with a locking surface 333. When the plug connector 20 is mated with the receptacle connector 10, the locking surface 333 firmly abuts against the mating end face 115.

[0061] The inner flange 37 applies an elastic force to clamp the annular circumferential wall 217, thereby maintaining contact between the inner flange 37 and the annular circumferential wall 217 and preventing the outer conductor 3 from arbitrarily vibrating relative to the annular circumferential wall 217 in the two-dimensional plane defined by the second direction D2 and the third direction D3. The inner flange 37 is snap-fitted into the annular groove 218, preventing the outer conductor 3 from arbitrarily moving relative to the annular circumferential wall 217 along the first direction D1. This prevents a gap from forming between the outer conductor 3 and the annular circumferential wall 217, ensuring stable current or signal transmission via the outer conductor 3 and the conductor 2 and also preventing momentary power or signal interruptions.

[0062] Since the conductor 2 is an integrated component, the number of components of the plug connector 20 can be reduced. Therefore, the convenience of assembling the conductor 2 with other components can be promoted, and the structure of the plug connector 20 after assembly is simple, which can further reduce the manufacturing cost of the plug connector 20.

[0063] 13, 14, and 15, the fifth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first and fourth embodiments in overall structure, with the difference between them being in the plug connector 20.

[0064] The rear end 31 of the outer conductor 3 is integrally connected to the front end of the outer casing 210 of the first conductive member 21, so that the outer conductor 3 and the first conductive member 21 are integrally formed and together constitute an integrated component. By integrally connecting the rear end 31 to the front end of the outer casing 210, no gap is created between the outer conductor 3 and the first conductive member 21. Each elastic piece 33 of the outer conductor 3 is similar in structure to that of the fourth embodiment, and each elastic piece 33 also has a shoulder 331, and the shoulder 331 has a shoulder surface 332 that is configured to be used for abutting against the locking surface 333 of the mating end face 115. The second conductive member 22 is disposed within the outer casing 210 of the first conductive member 21 and the outer conductor 3, and partially protrudes from the front ends of the multiple front latch portions 32, and the annular surface 221 of the second conductive member 22 abuts against the rear engagement surface 213 of the first conductive member 21.

[0065] The outer conductor 3 and the first conductive member 21 are integrally formed and configured as an integrated component, thereby reducing the number of components constituting the plug connector 20. Therefore, the convenience of assembling between the conductor 2 and other components can be promoted, and the structure of the plug connector 20 after assembly is simple, which can further reduce the manufacturing cost of the plug connector 20.

[0066] 16 and 17, the sixth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the fifth embodiment in overall structure, with the difference between them being in the plug connector 20.

[0067] The conductor 2 is an integral component and has the same structure as the first conductive member 21 of the fifth embodiment. The rear end 31 of the outer conductor 3 is integrally connected to the front end of the outer casing 210 of the conductor 2, and the outer conductor 3 and the conductor 2 are integrally formed and together constitute an integral component. The insulator 4 has the same structure as the second conductive member 22 of the fifth embodiment. The insulator 4 has a providing segment 41 and a head segment 42 formed at the front end of the providing segment 41. The providing segment 41 of the insulator 4 is provided within the outer casing 210 of the conductor 2 and the outer conductor 3. The head segment 42 protrudes from the front ends of the multiple front latch portions 32 and is used for insertion into the insertion grooves 112. The providing segment 41 has an annular surface 411 that abuts the rear locking surface 213 of the conductor 2. By having the head segment 42 surround the outer periphery of the center terminal 5, it is possible to prevent the female terminal 13 of the receptacle connector 10 from coming into contact with conductors other than the center terminal 5 and causing a short circuit when a user improperly inserts or pulls out the plug connector 20 at an angle.

[0068] Since the conductor 2 is an integrated component and the outer conductor 3 and the conductor 2 are integrally formed to form the integrated component together, the number of components constituting the plug connector 20 can be further reduced. Therefore, the convenience of assembling the conductor 2 with the other components can be promoted, and the structure of the plug connector 20 after assembly is simple, which can further reduce the manufacturing cost of the plug connector 20.

[0069] Referring to Figures 18, 19, and 20, the seventh embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first and fourth embodiments in overall structure, with the difference between them being in the plug connector 20.

[0070] The conductor 2 is an integral component and is similar in structure to the conductor 2 of the fourth embodiment. The conductor 2 has an outer casing 210, an annular peripheral wall 211, guide posts 212, and an annular circumferential wall 217. The annular peripheral wall 211 surrounds the annular circumferential wall 217. The annular circumferential wall 217 partially protrudes from a front end face 214 of the annular peripheral wall 211. The outer casing 210, the annular peripheral wall 211, and the annular circumferential wall 217 together define an annular channel 216.

[0071] The outer conductor 3 has a structure similar to that of the outer conductor 3 of the fourth embodiment. The outer conductor 3 covers the annular circumferential wall 217 of the conductor 2. The rear end 31 and the multiple elastic pieces 33 of the outer conductor 3 are housed in the annular channel 216, and the multiple front latch portions 32 are exposed from the annular channel 216. The portion of the outer conductor 3 adjacent to the rear end 31 clamps the annular circumferential wall 217 of the conductor 2 by applying an elastic force through a tightening elastic force. Each elastic piece 33 has a first elastic piece body 334 connected to the corresponding front latch portion 32 and a second elastic piece body 335 extending rearward from the first elastic piece body 334. The second elastic piece body 335 is used to apply an elastic force so as to abut against the annular circumferential wall 217 of the conductor 2. The multiple elastic pieces 33 clamp the annular circumferential wall 217 by applying an elastic force through the multiple second elastic piece bodies 335. Therefore, the contact state between the outer conductor 3 and the annular circumferential wall 217 is maintained, and the outer conductor 3 can be prevented from arbitrarily swinging relative to the annular circumferential wall 217 in a two-dimensional plane defined by the second direction D2 and the third direction D3, and the outer conductor 3 can be further prevented from arbitrarily moving along the first direction D1 relative to the annular circumferential wall 217. Therefore, it is possible to prevent a gap from being generated between the outer conductor 3 and the annular circumferential wall 217, ensuring stability in the transmission of current or signals via the outer conductor 3 and the conductor 2, and also preventing the occurrence of momentary power blackouts or signal interruptions.

[0072] Only the front latch portions 32 of the outer conductor 3 are exposed from the annular channel 216, and the entire remaining portion of the outer conductor 3 is housed within the annular channel 216, so that the annular circumferential wall 217 and the annular peripheral wall 211 of the conductor 2 can function to protect the elastic pieces 33 from the inside and outside of the elastic pieces 33, respectively. This makes it possible to prevent the elastic pieces 33 from being damaged by human influence.

[0073] Referring to Figures 21, 22, and 23, the eighth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the first, fourth, and seventh embodiments in overall structure, with the difference between them being in the plug connector 20.

[0074] The conductor 2 is an integrated component and has a structure similar to that of the conductor 2 of the seventh embodiment. The outer conductor 3 has a structure similar to that of the outer conductor 3 of the fourth embodiment, except that the outer conductor 3 of the eighth embodiment does not have a through gap 36 or an inner flange 37. When the outer conductor 3 is assembled to the conductor 2, the outer conductor 3 first covers the annular circumferential wall 217 of the conductor 2, so that the rear end 31 and the outer flange 34 are accommodated in the annular channel 216. Then, a processing operation such as rolling riveting is performed on the annular peripheral wall 211, so that the annular peripheral wall 211 forms an annular latch pressure wall 211'. The front end of the annular latch pressure wall 211' is deformed to bend inward and engage and press the outer flange 34, preventing the outer flange 34 from coming out of the annular channel 216. The rear end 31 and the outer flange 34 can be firmly fixed in the annular channel 216, preventing a gap from occurring between the outer conductor 3 and the conductor 2. Therefore, the stability of the transmission of current or signals via the outer conductor 3 and the conductor 2 can be ensured, and the occurrence of momentary power interruptions or interruptions of signals can also be avoided.

[0075] Referring to Figures 24, 25, and 26, the ninth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the fifth embodiment in overall structure, with the difference between them being in the plug connector 20.

[0076] The insulator 4 has a hollow cylindrical shape and includes a providing segment 41 and a head segment 42 formed at the front end of the providing segment 41. The providing segment 41 of the insulator 4 is provided on the second conductive member 22. The head segment 42 protrudes from the front end of the second conductive member 22 and is used for insertion into the insertion groove 112. The head segment 42 surrounds the outer periphery of the center terminal 5, thereby preventing the female terminal 13 of the receptacle connector 10 from coming into contact with conductors other than the center terminal 5 and causing a short circuit when a user improperly inserts or pulls out the plug connector 20 at an angle.

[0077] 27 and 28, the tenth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the fifth embodiment in overall structure, with the difference between them being in the plug connector 20.

[0078] The outer casing 210 of the first conductive member 21 has an inner interference circumferential wall 219. The second conductive member 22 is assembled from front to rear within the outer casing 210 of the first conductive member 21 and interferes with the inner interference circumferential wall 219. The second conductive member 22 is provided within the outer casing 210 of the first conductive member 21 and the outer conductor 3, and partially protrudes from the front ends of the plurality of forward latch portions 32.

[0079] 29 and 30, the eleventh embodiment of the electrical connecting device 100 of the present disclosure is substantially the same as the first embodiment in overall structure, with the difference between them being in the plug connector 20.

[0080] The outer casing 210 of the first conductive member 21 has an inner interfering circumferential wall 219. The second conductive member 22 is assembled from front to rear within the outer casing 210 of the first conductive member 21 and interfers with the inner interfering circumferential wall 219. The second conductive member 22 is disposed within the outer casing 210 and the annular peripheral wall 211 of the first conductive member 21 and partially protrudes from the front end face 214. The second conductive member 22 is radially recessed to form an annular groove 222 that opens outward and is adjacent to the inner interfering circumferential wall 219. The first conductive member 21 and the second conductive member 22 together define an annular channel 216 that opens forward and communicates with the annular groove 222.

[0081] The outer conductor 3 covers the second conductive member 22, forming a through gap 36. The rear end 31 and the multiple elastic pieces 33 are housed in the annular channel 216, and the multiple front latch portions 32 are exposed from the annular channel 216. The outer conductor 3 further has an inner flange 37 connected to the rear end 31, which is snap-fitted into the annular groove 222 and applies an elastic force to clamp the second conductive member 22 by means of a tightening elastic force.

[0082] 31 and 32, the twelfth embodiment of the electrical connection device 100 of the present disclosure is substantially the same as the eleventh embodiment in overall structure, with the difference between them being in the plug connector 20.

[0083] Each elastic piece 33 of the outer conductor 3 has a structure similar to that of the fourth embodiment, and each elastic piece 33 similarly has a shoulder 331, and the shoulder 331 has a shoulder surface 332. The shoulder surface 332 of the front end face 214 and the conductor 2 together form a locking surface 220 used to abut against the mating end face 115. Therefore, when the plug connector 20 is mated with the receptacle connector 10, the conductor 2 and the outer conductor 3 can firmly abut against the mating end face 115 by means of the front end face 214 and the shoulder surface 332, respectively.

[0084] It should be noted that in each of the alternative implementations of the third to twelfth embodiments, each forward latch portion 32 is identical in structure to that of the second embodiment and similarly has a forward abutment surface 322 that is used to abut against the forward engagement surface 119 to further promote firm mating of the plug connector 20 with the receptacle connector 10.

[0085] In conclusion, in each embodiment of the electrical connection device 100, there is no gap between the outer conductor 3 and the conductor 2, there is no gap between the locking surfaces 215, 333, 220 and the mating end surface 115, each elastic piece 33 has better elasticity, can withstand repeated insertion and withdrawal, is less likely to deform, can ensure the stability of current or signal transmission, and can also avoid the occurrence of power outages or signal interruptions, so the purpose of the present disclosure can actually be achieved.

[0086] However, the above description is only for the embodiments of the present disclosure and is not intended to limit the scope of the present disclosure, and simple equivalent changes and modifications made in accordance with the claims and the contents of the specification still fall within the scope of the present disclosure.

Claims

1. An electrical connection device, the electrical connection device including a plug connector and a receptacle connector; The plug connector comprises: a conductor having an outer casing in the form of a hollow rectangular shell; an outer conductor having a rear end, at least one front latch portion, and at least one elastic piece, the rear end electrically connected to a conductor, the front latch portion facing the rear end and located forward of the rear end, the elastic piece located between the rear end and the front latch portion and connected to the front latch portion, the outer conductor assembled in an outer casing of the conductor, the conductor having a locking surface formed on it, the locking surface being located corresponding to the elastic piece of the outer conductor and adjacent to the front latch portion; an insulator provided within the conductor; a center terminal provided on the insulator; The receptacle connector includes: The connector includes an outer shell, an insulator, and a female terminal. the outer shell includes a mating end face, an inner annular groove, and an inner annular surface, the mating end face being configured in an annular shape and spaced apart from the inner annular groove; an electrical connection device, wherein when the plug connector is inserted into the receptacle connector, a forward latch portion of the outer conductor latches into the inner annular groove, and the locking surface is used to lock against the mating end face of the receptacle connector so as to limit the depth to which the plug connector is inserted into the receptacle connector.

2. 2. The electrical connecting device according to claim 1, wherein said engaging surface is formed on said elastic piece.

3. 3. The electrical connection device of claim 2, wherein said resilient piece has a shoulder, said shoulder having a shoulder surface, said shoulder surface forming said locking surface.

4. 2. The electrical connection device of claim 1, wherein the conductor has an annular peripheral wall extending forward and surrounding the resilient piece, the annular peripheral wall having a front end surface, the front end surface forming the locking surface.

5. The elastic piece has a shoulder portion, the shoulder portion having a shoulder surface, the conductor has an annular peripheral wall extending forward and surrounding the elastic piece, the annular peripheral wall having a front end surface; 2. The electrical connection device of claim 1, wherein said shoulder surface and front end surface together form said locking surface.

6. 2. The electrical connection device of claim 1, wherein the outer conductor has at least one slit formed therein, the slit extending from the front latch portion to proximate the rear end, the slit having an open portion located in the front latch portion and a closed portion opposite the open portion and proximate the rear end.

7. 7. The electrical connection device of claim 6, wherein the outer conductor has a plurality of front latch portions and a plurality of resilient pieces, and a plurality of slits are formed in the outer conductor, each slit extending from two corresponding adjacent front latch portions to close to the rear end, and each slit is located between two corresponding adjacent front latch portions and two corresponding adjacent resilient pieces.

8. 8. The electrical connection device of claim 7, wherein the outer conductor further has a through gap formed therein, the through gap extending from two corresponding adjacent front latch portions to the rear end, and the through gap has two through openings, the two through openings being located between the two corresponding adjacent front latch portions and at the rear end, respectively.

9. 2. The electrical connection device of claim 1, wherein the outer conductor has a through gap formed therein, the through gap extending from the front latch portion to the rear end, and the through gap having two through openings located at the front latch portion and the rear end, respectively.

10. The conductor is an integral component, and the conductor has an annular groove formed therein that opens outward; 2. The electrical connection device of claim 1, wherein the outer conductor covers the conductor, the outer conductor has a through gap formed therein, the through gap extending from the front latch portion to the rear end, the outer conductor has an inner flange connected to the rear end, the inner flange snap-fitting into an annular recessed groove and applying a resilient force to clamp the conductor.

11. the electrical conductor is an integral component, and the rear end of the outer conductor is integrally connected to the electrical conductor; the outer conductor and the electrical conductor are integrally formed to together form an integrated component; 2. The electrical connection device of claim 1, wherein the insulator has a presentation segment provided on the conductor and outer conductor, and a head segment formed at a front end of the presentation segment and protruding from a front end of the front latch portion.

12. the electrical conductor is a unitary component, the electrical conductor having a forwardly opening annular channel formed therein; 2. The electrical connection device according to claim 1, wherein the outer conductor has a through gap extending from the front latch portion to the rear end, the outer conductor covers the conductor and applies an elastic force to clamp the conductor, the rear end and the elastic piece are housed in the annular channel, and the front latch portion is exposed from the annular channel.

13. the outer conductor has a plurality of front latch portions and a plurality of elastic pieces, and a plurality of slits are formed in the outer conductor; the through gaps extend from corresponding two adjacent forward latch portions to a rear end; 13. The electrical connecting device of claim 12, wherein each slit extends from two corresponding adjacent front latch portions so as to be close to the rear end, each slit is located between two corresponding adjacent front latch portions and between two corresponding adjacent resilient pieces, and each resilient piece has a first resilient piece body connected to the corresponding front latch portion and a second resilient piece body extending rearward from the first resilient piece body to apply a resilient force to abut against the conductor.

14. the electrical conductor is a unitary component, the electrical conductor having a forwardly opening annular channel formed therein; the outer conductor further comprises an outer flange connected to a rear end, the outer conductor covering the conductor, the rear end and the outer flange being received within an annular channel; the electrical conductor has an annular latch pressure wall extending forwardly and surrounding an annular channel; 2. The electrical connection device of claim 1, wherein a front end of the annular latch pressure wall is deformed to bend inward to latch and press against the outer flange.

15. the electrical conductor includes a first conductive member and a second conductive member disposed within the first conductive member and partially projecting from a front end of the first conductive member, the first conductive member and the second conductive member together defining a forwardly opening annular channel; the outer conductor further has an outer flange connected to a rear end; 2. The electrical connection device of claim 1, wherein the rear end, the resilient piece, and the outer flange are housed within an annular channel, a front latch portion is exposed from the annular channel and protrudes from a front end of the first conductive member, and the outer flange is clamped by the first conductive member and the second conductive member.

16. the electrical conductor comprises a first conductive member, a second conductive member disposed within the first conductive member and partially projecting from a front end of the first conductive member, and a third conductive member disposed within the first conductive member and partially projecting from a rear end of the first conductive member, the first conductive member and second conductive member together defining a forwardly opening annular channel; the outer conductor further has an outer flange connected to a rear end of the outer conductor; 2. The electrical connection device of claim 1, wherein the rear end of the outer conductor, the elastic piece, and the outer flange are housed within an annular channel, the front latch portion is exposed from the annular channel and protrudes from the front end of the first conductive member, and the outer flange is clamped by the first conductive member and the second conductive member.

17. the conductor has a first conductive member and a second conductive member; a rear end of the outer conductor is integrally connected to the first conductive member, the outer conductor and the first conductive member being integrally formed to together define an integrated component; 2. The electrical connection device of claim 1, wherein the second conductive member is disposed within the first conductive member and the outer conductor and partially protrudes beyond the front end of the forward latch portion.

18. the conductor has a first conductive member and a second conductive member; a rear end of the outer conductor is integrally connected to the first conductive member, and the outer conductor and the first conductive member are integrally formed to form an integrated component; the second conductive member is disposed within the first conductive member and the outer conductor and partially projects beyond the front end of the forward latch portion; 2. The electrical connection device of claim 1, wherein the insulator has a provided segment provided on the second conductive member, and a head segment formed at a front end of the provided segment and protruding from the front end of the second conductive member.

19. the conductor has a first conductive member and a second conductive member; a rear end of the outer conductor is integrally connected to the first conductive member, and the outer conductor and the first conductive member are integrally formed to form an integrated component; the second conductive member is disposed within the first conductive member and the outer conductor and partially projects beyond the front end of the forward latch portion; 2. The electrical connection device of claim 1, wherein said first conductive member has an inner interference circumferential wall that interferes with said second conductive member.

20. the electrical conductor comprises a first conductive member and a second conductive member disposed within the first conductive member and partially projecting from a front end of the first conductive member, the first conductive member having an inner interfering circumferential wall, the second conductive member interfering with the inner interfering circumferential wall, the second conductive member having an outwardly opening annular recessed groove formed therein, the first conductive member and the second conductive member together defining an annular channel that opens forwardly and communicates with the annular recessed groove; the outer conductor covers the second conductive member, the outer conductor has a through gap formed therein, the through gap extending from the forward latch portion to the rear end; the outer conductor further has an inner flange connected to a rear end; 2. The electrical connection device of claim 1, wherein the rear end, the elastic piece, and the inner flange are housed within an annular channel, the front latch portion is exposed from the annular channel, and the inner flange is snap-fit ​​into an annular recessed groove to apply an elastic force to clamp the second conductive member.

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