Miniature coaxial connector with high reliability
By designing a miniature coaxial connector with elastic contacts at the front end of the outer conductor of the coaxial connector, the problem of unstable contact in the prior art is solved, and stable insertion and reliable signal transmission are achieved, which is suitable for fields such as automotive smart cockpits and high-definition cameras.
Patent Information
- Application Number
- CN202423319012.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The mating parts of existing coaxial connectors lack elasticity, resulting in unstable contact and problems such as shaking and poor signal transmission.
Design a miniature coaxial connector with several first slots forming elastic contact arms at the front end of the outer conductor, and elastic contacts on the outer surface of the front end. When mating the connector, elastic contact is achieved by setting an annular groove inner wall in the insertion slot, and a spring piece is set at the center pin to further stabilize the connection.
It achieves stable connection, avoids shaking and poor contact, and makes signal transmission more reliable. It is suitable for video transmission to avoid screen tearing or black screen.
Smart Images
Figure CN223757733U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to connector product technical field, especially a high reliability's micro coaxial connector. BACKGROUND
[0002] The main supporting field of connector has traffic, communication, network, IT, medical treatment, household appliance etc., and the rapid development of the product technical level of supporting field and the rapid growth of its market strongly pull the development of connector technology.
[0003] As a kind of connector, coaxial connector can be used for interconnection between circuit board and circuit board, radio frequency module and radio frequency module, and circuit board and radio frequency module.
[0004] Combining Figures 1-2 The elbow coaxial connector and straight head coaxial connector in the prior art include outer conductor 101 and center pin fixed in the inner part of outer conductor 101 by passing through insulator, and the center pin is coaxially arranged with the outer conductor 101.
[0005] Wherein, the above-mentioned outer conductor 101 front end is the plug-in part 102 of barrel or circular ring, the plug-in part 102 has no elasticity, so that when the plug-in part 102 is plugged with the mating connector, the two are in hard contact, which is easy to cause the plug-in part to shake stably, and the connection reliability is poor, which further leads to the phenomenon of poor contact and unstable signal transmission, and there is the risk of bad screen or black screen when used for video transmission.
[0006] Therefore, the present application provides the following technical scheme. UTILITY MODEL CONTENTS
[0007] The utility model aims at overcoming the defects of prior art, and provides a high reliability's micro coaxial connector.
[0008] In order to solve the above technical problems, the utility model adopts the following technical scheme: the high reliability's micro coaxial connector includes outer conductor and center pin fixed in the center hole of outer conductor by passing through insulator, and the center pin is coaxially arranged with the outer conductor, the outer conductor includes plug-in conductor for plugging with mating connector and annular, a plurality of first slits are formed in the front end of plug-in conductor, so that a plurality of elastic contact arms are formed in the front end of plug-in conductor, and the front end outer surface of elastic contact arm is formed with elastic contact point outwardly protruding.
[0009] Further, in the technical scheme, the elastic contact is a convex rib distributed along the circumference of the front end outer surface of the elastic contact arm and protruding from inside to outside.
[0010] Further, in the technical scheme, the longitudinal section of the elastic contact is a convex arc.
[0011] Further, in the technical scheme, the front end outer side of the elastic contact arm is provided with a round chamfer, and the round chamfer and the elastic contact are smoothly connected through a concave arc surface.
[0012] Further, in the technical scheme, the rear section of the plug-in conductor is provided with a ring groove, and a fixing ring is sleeved in the ring groove, and the outer surface of the fixing ring protrudes from the outer surface of the plug-in conductor.
[0013] Further, in the technical scheme, the outer conductor further comprises a conductor seat and a rear cover, the upper end of the conductor seat is provided with a mounting hole penetrating the front and rear end surfaces, the rear end of the plug-in conductor is embedded and fixed in the mounting hole, and is distributed vertically with the conductor seat to form an elbow structure; the lower end of the conductor seat is provided with a first wire hole for the wire to pass through, and the rear end of the plug-in conductor is further provided with a second wire hole corresponding to the first wire hole, and the wire is welded and fixed to the rear end of the center needle after passing through the first wire hole and the second wire hole, and the rear cover is embedded and fixed at the opening of the rear end of the mounting hole.
[0014] Further, in the technical scheme, an insulating gasket is further included, and the insulating gasket is embedded and fixed at the opening of the rear end of the center hole and contacts the front end of the rear cover.
[0015] Further, in the technical scheme, the outer conductor further comprises a conductor seat, the upper end of the conductor seat is provided with a mounting hole penetrating the front and rear end surfaces, the rear end of the plug-in conductor is embedded and fixed in the mounting hole and is distributed on the same straight line with the conductor seat to form a straight head structure; and the wire is welded and fixed to the rear end of the center needle after passing through the mounting hole.
[0016] Further, in the technical scheme, the plug-in conductor is formed with an outwardly protruding retaining rim at the outer periphery of the middle part, and the rear end surface of the retaining rim abuts against the front end surface of the conductor seat in the outer conductor; the rear end of the center needle has a wire slot, and the outer part of the center needle is further formed with a plurality of barbs for clamping and positioning with the insulator.
[0017] Further, in the technical scheme, the mating connector comprises an outer conductor and a center conductor embedded and fixed inside the outer conductor through an insulating seat, a plug-in slot is formed between the outer conductor and the insulating seat, the front end of the center conductor is exposed in the plug-in slot, and the front end of the center conductor is formed with a plurality of spaced elastic pieces through a second slot, and the elastic pieces surround an elastic contact slot for the center needle to be inserted and elastically contacted.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1、 the utility model discloses before the front end of the plug-in conductor is provided with a plurality of first slotted groove to the front end and forms a plurality of elastic contact arm that is mutually spaced distribution, and the elastic contact arm front end outer surface is formed with the elastic contact point that is outward convex. When the plug-in conductor is inserted with the mating connector, the elastic contact point of the elastic contact arm contacts the inner wall of the insertion slot of the mating connector, at this time, the inner wall of the insertion slot compresses the elastic contact arm from outside to inside, and the elastic contact arm generates the elastic force from inside to outside, and then drives the elastic contact point and the inner wall of the insertion slot to realize the elastic contact, which plays the purpose of outwardly opening to guide and connect, and then ensures that the plug-in conductor of the miniature coaxial connector can form the elastic contact after being inserted with the mating connector, makes the miniature coaxial connector and the mating connector form stable, high reliability assembly, and there is no shaking phenomenon between them, and ensures that the signal transmission is stable, and there is no contact failure phenomenon, and there is no bad risk such as screen or black screen for video transmission, and reaches the purpose of high reliability.
[0020] 2、 the center conductor of the mating connector also forms a plurality of elastic sheets by opening the first slotted groove, when the center needle is embedded in the elastic butt joint groove in the front end of the center conductor, and is positioned by the elastic sheet from outside to inside, so as to ensure the stability of the guide and connection, and further ensure that the signal transmission is stable, and there is no contact failure phenomenon, and there is no bad risk such as screen or black screen for video transmission, and further improve the reliability. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the perspective view of the elbow coaxial connector in the prior art;
[0022] Figure 2 It is the perspective view of the straight head coaxial connector in the prior art;
[0023] Figure 3 It is the perspective view of the utility model;
[0024] Figure 4 It is the perspective view of another view of the utility model;
[0025] Figure 5 It is the perspective exploded view of the utility model;
[0026] Figure 6 It is the perspective view of the plug-in conductor in the utility model;
[0027] Figure 7 It is the sectional view of the utility model;
[0028] Figure 8 It is the assembly drawing of the utility model and the mating connector;
[0029] Figure 9is another embodiment of the utility model three-dimensional view of the utility model;
[0030] Figure 10 is another embodiment of the utility model three-dimensional exploded view of the utility model;
[0031] Figure 11 is another embodiment of the utility model and the assembly drawing of the mating connector. CONCRETE EMBODIMENT
[0032] The utility model is further explained below in combination with specific embodiment and drawing.
[0033] See Figures 3-11 As shown in the figure, it is a high-reliability miniature coaxial connector, which can be applied to the field of automobile intelligent cockpit, high-definition camera, recorder, streaming media rearview mirror, etc., of course, can also be applied to other fields or products.
[0034] The high-reliability miniature coaxial connector includes an outer conductor 2 and a center pin 4 fixed in the outer conductor 2 by an insulator 3, wherein the center pin 4 is coaxially arranged with the outer conductor 2, and the outer conductor 2 includes a plug-in conductor 21 for plug-in with a mating connector 6 and in the form of a ring;Wherein, the plug-in conductor 21 is provided with a center hole 20 penetrating the front and rear end faces, the insulator 3 is embedded and fixed in the center hole 20, and the center pin 4 also emerges in the center hole 20.
[0035] The utility model mainly makes the following design: the plug-in conductor 21 is provided with a plurality of first slits 211 along the front end, so that a plurality of elastic contact arms 212 are formed at the front end of the plug-in conductor 21, and the front end outer surface of the elastic contact arm 212 is formed with an outwardly protruding elastic contact 213. When the plug-in conductor 21 is plugged with the mating connector 6, the elastic contact arm 212 of the plug-in conductor 21 is inserted into the plug-in slot 60 of the mating connector 6, and the elastic contact 213 on the front end outer surface of the elastic contact arm 212 contacts the inner wall of the plug-in slot 60 of the mating connector 6. At this time, the inner wall of the plug-in slot 60 compresses the elastic contact arm 212 from outside to inside, and the elastic contact arm 212 generates elastic force from inside to outside, thereby driving the elastic contact 213 to realize elastic contact with the inner wall of the plug-in slot 60, which plays a role of outwardly expanding to guide connection, thereby ensuring that the plug-in conductor 21 of the miniature coaxial connector can form elastic contact after being plugged with the mating connector 6, so that the miniature coaxial connector and the mating connector 6 form stable and high-reliability assembly, and there is no shaking phenomenon between them, and the signal transmission is stable, there is no contact failure phenomenon, and there is no risk of bad risk such as screen or black screen for video transmission, achieving the purpose of high reliability.
[0036] In the embodiment, the first slot 211 is four in number to form four elastic contact arms 212. Of course, more or fewer first slots 211 can also be provided, which can all achieve elastic contact of the elastic contact arms 212 of the plug-in conductor 21 with the mating connector 6.
[0037] The elastic contact 213 is a convex rib distributed along the circumference of the front end outer surface of the elastic contact arm 212 and protruding from inside to outside. It is a line contact, which can ensure the stability of the elastic contact.
[0038] The longitudinal section of the elastic contact 213 is in the shape of a convex arc, which can serve the purpose of guidance or orientation. That is, when the elastic contact 213 contacts the inner wall of the plug-in slot 60 of the mating connector 6, it can gradually contact from the low point to the high point of the elastic contact 213, so as to better compress the elastic contact arm 212, make the plug-in smoother, and avoid the phenomenon of jamming. At the same time, the convex arc-shaped elastic contact 213 can also prevent scratching the inner wall of the plug-in slot 60, and play a protective role.
[0039] In addition, the front end outer side of the elastic contact arm 212 is provided with a round chamfer 214, which can make the elastic contact arm 212 more smoothly inserted into the plug-in slot 60 of the mating connector 6, improve the smoothness of the plug-in, and the round chamfer 214 and the elastic contact 213 are smoothly connected through a concave arc surface 215. Through the concave arc surface 215, the front end opening part of the plug-in slot 60 can smoothly slide along the surface of the elastic contact arm 212, so that the elastic contact arm 212 and the plug-in slot 60 are in elastic extrusion contact.
[0040] The rear section of the plug-in conductor 21 is provided with a ring groove 216, and the ring groove 216 is sleeved with a fixing ring 217, and the outer surface of the fixing ring 217 protrudes from the outer surface of the plug-in conductor 21. The fixing ring 217 is also embedded in the plug-in slot 60 of the mating connector 6, which plays a role of positioning and contact. The fixing ring 217 is a non-closed metal ring in the shape of a C.
[0041] In the embodiment, the outer conductor 2 further comprises a conductor seat 22 and a rear cover 23. The upper end of the conductor seat 22 is provided with a mounting hole 221 penetrating the front and rear end faces. The rear end of the plug-in conductor 21 is embedded and fixed in the mounting hole 221, and is distributed perpendicularly to the conductor seat 22, forming an elbow structure.
[0042] The lower end of the conductor seat 22 is provided with a first wire hole 222 for the wire to pass through, and the rear end of the plug-in conductor 21 is also provided with a second wire hole 218 corresponding to the first wire hole 222. After the wire passes through the first wire hole 222 and the second wire hole 218, it is welded and fixed to the rear end of the center needle 4. The rear cover 23 is embedded and fixed at the rear end opening of the mounting hole 221, so that foreign matter cannot enter the mounting hole 221.
[0043] The outer periphery of the center of the plug-in conductor 21 is shaped with an outward protruding retaining rim 210, the rear end face of which abuts against the front end face of the conductor seat 22 in the outer conductor 2, which can effectively prevent the plug-in conductor 21 from being excessively inserted into the conductor seat 22; the rear end of the center pin 4 has a wiring slot 41, and the outer part of the center pin 4 is further shaped with a plurality of barbs 42 for clamping and positioning with the insulator 3, so as to ensure that the center pin 4 and the insulator 3 form a stable assembly.
[0044] In the embodiment, the utility model still includes insulating gasket 24, insulating gasket 24 inlaying fixed in center hole 20 rear end opening, and with the front end of rear cover 23 contact.
[0045] The specific structure of the mating connector 6 will be described below.
[0046] The mating connector 6 comprises an outer conductor 61 and a center conductor 63 fixed in the inner part of the outer conductor 61 through an insulating seat 62, and a plug-in slot 60 is formed between the outer conductor 61 and the insulating seat 62, the front end of the center conductor 63 is exposed in the plug-in slot 60, the front end of the center conductor 63 is provided with a plurality of spaced elastic pieces 631 by opening a second slot, and the elastic pieces 631 surround an elastic mating slot 630 for the insertion of the center pin 4 and the elastic contact. On the basis of the above, the elastic pieces 631 are arranged on the center conductor 63 of the mating connector 6, when the plug-in conductor 21 is plugged into the mating connector 6, the elastic arms 212 of the plug-in conductor 21 are inserted into the plug-in slot 60 of the mating connector 6, and the elastic contact points 213 on the outer surface of the front end of the elastic arms 212 are in elastic contact with the plug-in slot 60 of the mating connector 6, which serves to outwardly expand for the purpose of guiding and connecting, so that the miniature coaxial connector and the mating connector 6 form a stable and highly reliable assembly, and there is no shaking phenomenon between them; at the same time, the center pin 4 is also embedded in the elastic mating slot 630 at the front end of the center conductor 63, and is positioned by the elastic pieces 631 from the outside to the inside, so as to ensure the stability of the guiding and connecting, further ensure the stability of signal transmission, and there is no risk of poor performance such as screen or black screen for video transmission, and the reliability is further improved.
[0047] In another embodiment, in combination Figures 9-11 As shown, the outer conductor 2 further comprises a conductor seat 22, the upper end of the conductor seat 22 is provided with a mounting hole 221 penetrating through the front and rear end faces, the rear end of the plug-in conductor 21 is inlaid and fixed in the mounting hole 221, and is distributed on the same straight line with the conductor seat 22, forming a straight head structure; the wire is welded and fixed with the rear end of the center pin 4 after passing through the mounting hole 221.
[0048] The embodiment is basically the same as the other structures of the above-mentioned embodiments, and can achieve the same technical effects, which will not be described here.
[0049] Of course, the above only the specific embodiments of the present application, not to limit the scope of the present application, all equivalent changes or modifications made in accordance with the principles of the application described in the scope of the present application, should be included in the scope of the present application.
Claims
1. A micro coaxial connector with high reliability, comprising an outer conductor (2) and a center pin (4) fixed in a center hole (20) of the outer conductor (2) by an insulator (3), wherein, The center pin (4) is coaxially arranged with the outer conductor (2), the outer conductor (2) includes a plug-in conductor (21) for plugging with a mating connector (6) and in the form of a ring, Characterized in that: the plug-in conductor (21) is provided with a plurality of first slits (211) along the front end thereof, so that the front end of the plug-in conductor (21) forms a plurality of elastic contact arms (212) distributed at intervals, and the front end of the elastic contact arm (212) is formed with an elastic contact point (213) protruding outward.
2. A high reliability micro coaxial connector according to claim 1, characterized in that: The elastic contact point (213) is a protruding rib distributed along the circumference of the front end of the elastic contact arm (212) and protruding from inside to outside.
3. A high reliability micro coaxial connector as recited in claim 1, wherein: The longitudinal section of the elastic contact point (213) is in the form of a convex arc.
4. A high reliability micro coaxial connector as recited in claim 3, wherein: The front end of the elastic contact arm (212) is provided with a circular chamfer (214), and the circular chamfer (214) and the elastic contact point (213) are smoothly connected through a concave surface (215).
5. A high reliability micro coaxial connector as recited in claim 1, wherein: The rear section of the plug-in conductor (21) is provided with a ring groove (216), and the ring groove (216) is sleeved with a fixing ring (217), and the outer surface of the fixing ring (217) protrudes from the outer surface of the plug-in conductor (21).
6. A high reliability micro coaxial connector according to any one of claims 1-5, characterized in that: The outer conductor (2) further comprises a conductor seat (22) and a rear cover (23), the upper end of the conductor seat (22) is provided with a mounting hole (221) penetrating the front and rear end faces, the rear end of the plug-in conductor (21) is embedded and fixed in the mounting hole (221), and is vertically distributed with the conductor seat (22), forming an elbow structure; the lower end of the conductor seat (22) is provided with a first wire hole (222) for the wire to pass through, and the rear end of the plug-in conductor (21) is further provided with a second wire hole (218) corresponding to the first wire hole (222), the wire passes through the first wire hole (222) and the second wire hole (218) and is welded and fixed to the rear end of the center pin (4), and the rear cover (23) is embedded and fixed at the rear end opening of the mounting hole (221).
7. A high reliability micro coaxial connector as recited in claim 6, characterized by: Further comprising an insulating gasket (24), the insulating gasket (24) is embedded and fixed at the rear end opening of the center hole (20), and the front end of the rear cover (23) is in contact with the insulating gasket (24).
8. A high reliability micro coaxial connector according to any one of claims 1-5, characterized in that: The outer conductor (2) further comprises a conductor seat (22), the upper end of the conductor seat (22) is provided with a mounting hole (221) penetrating the front and rear end faces, the rear end of the plug-in conductor (21) is embedded and fixed in the mounting hole (221), and is distributed on the same straight line with the conductor seat (22), forming a straight head structure; the wire passes through the mounting hole (221) and is welded and fixed to the rear end of the center pin (4).
9. A high reliability micro coaxial connector according to any one of claims 1-5, characterized in that: The plug-in conductor (21) is formed with an outwardly protruding retaining rim (210) at the periphery of the middle portion, the rear end face of the retaining rim (210) abuts against the front end face of the conductor seat (22) in the outer conductor (2); the rear end of the center pin (4) has a wire slot (41), and the outer portion of the center pin (4) is further formed with a plurality of barbs (42) for clamping and positioning with the insulator (3).
10. A high reliability micro coaxial connector as claimed in any one of claims 1 to 5, wherein: The mating connector (6) comprises an outer conductor (61) and a center conductor (63) fixed inside the outer conductor (61) through an insulating seat (62), a plug slot (60) is formed between the outer conductor (61) and the insulating seat (62), the front end of the center conductor (63) is exposed to the plug slot (60) The front end of the center conductor (63) is provided with a second slot to form a plurality of elastic pieces (631) distributed at intervals, The elastic pieces (631) surround an elastic counter slot (630) for the insertion of the center needle (4) and can form elastic contact.