Novel reliable terminal and radio frequency connector

Abstract

The utility model discloses a novel reliable terminal and a radio frequency connector, comprising a female end terminal and a male end terminal which are mutually plugged and cooperated, the female end terminal is composed of a female end housing with a cylindrical structure and an intermediate conductor member, the front end of the female end housing is provided with a female end contact hole, and the male end contact hole is provided with a male end contact hole. The middle conductor piece is integrally sleeved in a female end contact hole of the female end shell and can slide in a contact manner along the inner wall surface of the female end contact hole; and the female end terminal and the female end shell form a contact state of at least one electrical contact point and two supporting points with the male end terminal in a contact area of the female end terminal and the female end shell by virtue of a bridging effect of the middle conductor piece. According to the radio frequency connector of the structure, the terminal of a two-point supporting and multi-point contact structure is adopted, stable transmission of signals is achieved, and the structure is reliable in contact and high in stability and vibration and impact resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and particularly relates to a novel reliable terminal and a radio frequency connector. Background Art

[0002] Vehicle-mounted connectors are the links connecting various subsystem modules in a vehicle. With the rapid development of new energy vehicles, their application environment is becoming more and more complex. As a movable means of transportation, a vehicle often faces and endures complex different mechanical environments and harsh climate conditions, and requires its vehicle-mounted devices to be able to meet the application requirements of resisting extreme climates (high temperature, low temperature, humidity, etc.) and extreme environments such as vibration and shock, and ensure high-reliable contact stability under severe mechanical vibration and shock conditions to ensure the stable transmission of vehicle-mounted signals.

[0003] At present, the contact forms of the inner and outer conductors of most radio frequency connectors all adopt a cantilever beam structure, and the positive pressure provided by its cantilever is used to form a predetermined elastic contact. The main possible disadvantages of this contact method are as follows:

[0004] 1) The elastic force decreases as the deformation of its cantilever decreases, and there may be a risk of discontinuous contact;

[0005] 2) When the inner and outer conductors are inserted into each other, the elastic arm or the inner aperture will change, affecting impedance continuity; 3) The inner and outer conductors of the existing contact form structure perform poorly under the working conditions of vibration and mechanical shock. Especially under severe shock conditions, there may be a risk of instantaneous breakage, which affects signal transmission and even has potential safety hazards. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a novel reliable terminal and a radio frequency connector with reliable structural contact, high stability and high vibration and shock resistance performance to solve the deficiencies of the prior art.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A novel reliable terminal, used as the inner conductor of a radio frequency connector, includes a female terminal and a male terminal that are inserted and matched with each other. The female terminal is composed of a female terminal housing with a cylindrical structure and an intermediate conductor. A female contact hole is provided at the front end of the female terminal housing. The intermediate conductor is integrally sleeved in the female contact hole of the female terminal housing and can undergo contact sliding along the inner wall surface of the female contact hole. The female terminal and its female terminal housing form a contact pattern with at least one electrical contact point and two support points in the contact area with the male terminal through the bridging action of the intermediate conductor.

[0009] Preferably, the intermediate conductor member is columnar, and a front convex portion is provided at its front end; a male contact hole is provided at the front end of the male terminal, and a contact flange extending radially around the circumference is provided on the outer wall of the contact area that is inserted and cooperated with the female terminal; when the male and female terminals are inserted and cooperated, the contact flange slides along the inner wall surface of the female contact hole and protrudes into the female contact hole to form at least one electrical contact point, and the front convex portion protrudes into the male contact hole under the pushing action of the male terminal, so that two support points can be formed at the front and rear ends of the electrical contact point.

[0010] Preferably, the two support points are respectively formed between the front convex portion of the intermediate conductor member and the inner wall of the male contact hole, and between the inner wall surface of the female contact hole and the front outer wall of the male terminal.

[0011] Preferably, a guiding surface is provided at least at one of the outer edges of the female contact hole of the female terminal and the male contact hole of the male terminal.

[0012] Preferably, the front end of the male terminal is a claw-shaped structure, and at least two contact lobes are formed on the contact flange.

[0013] A novel and reliable terminal, used as the outer conductor of a radio frequency connector, includes a female housing and a male housing that are inserted and cooperated with each other. The male housing is composed of a hollow cylindrical male outer sleeve and a male housing body. The front end of the female housing is provided with claw-shaped contact lobes. The male outer sleeve is sleeved on the front end of the male housing body to form a contact space for the claw-shaped contact lobes to slide in a contacting manner. The male housing and its male housing body form a contact pattern with at least one electrical contact point and two support points in the contact area with the female housing by means of the bridging action of the male outer sleeve.

[0014] Preferably, the claw-shaped contact lobes at the front end of the female housing and the contact area of the male housing have a waist-shaped flange, forming at least 6 linear contact areas.

[0015] Preferably, the front end of the claw-shaped contact lobe is provided with an arc-shaped guiding surface.

[0016] A radio frequency connector has a new and reliable terminal serving as the inner conductor of the radio frequency connector. The female terminal is composed of a female housing with a cylindrical structure and an intermediate conductor member. A female contact hole is provided at the front end of the female housing, and the intermediate conductor member is integrally sleeved in the female contact hole of the female housing; the intermediate conductor member is in a columnar shape, and a front convex portion is provided at its front end; a male contact hole is provided at the front end of the male terminal, and a contact flange extending circumferentially around the outer wall in the contact area where it is inserted and mated with the female terminal is provided; when the male and female terminals are inserted and mated, the contact flange slides along the inner wall surface of the female contact hole and protrudes into the female contact hole to form at least one electrical contact point, and the front convex portion protrudes into the male contact hole under the pushing action of the male terminal, so that two support points can be formed at the front and rear ends of the electrical contact point.

[0017] Preferably, it also has a new and reliable terminal serving as the outer conductor of the radio frequency connector, including a female outer shell and a male outer shell that are inserted and mated with each other. The male outer shell is composed of a hollow cylindrical male outer sleeve body and a male outer shell body. Claw-shaped contact petals are provided at the front end of the female outer shell. The male outer sleeve body is sleeved on the front end of the male outer shell body to form a contact space for the claw-shaped contact petals to contact and slide. The male outer shell and its male outer shell body form a contact pattern with at least one electrical contact point and two support points with the female outer shell in their contact area by means of the bridging action of the male outer sleeve body.

[0018] Compared with the prior art, the beneficial technical effects of the new and reliable terminal and the radio frequency connector provided by the present utility model are as follows: For the new and reliable terminal provided by the present utility model, the female terminal and the male terminal of the inner conductor that are inserted and mated with each other, the female housing forms a contact pattern with at least one electrical contact point and two support points with the male terminal in the contact area by means of the bridging action of the intermediate conductor member. For the radio frequency connector, or for the female outer shell and the male outer shell of the outer conductor that are inserted and mated with each other, the male outer shell and its male outer shell body form a contact pattern with at least one electrical contact point and two support points with the female outer shell in their contact area by means of the bridging action of the male outer sleeve body; that is, the structural design of the inner conductor and the outer conductor adopts a design principle of two-point support and multi-point contact (similar to a simply supported beam structure) to achieve stable signal transmission. The reliable terminal and the radio frequency connector with such a new structure have reliable contact, high stability, and high vibration and shock resistance. Description of the Drawings

[0019] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0020] Figure 1Schematic diagram of the structure when the male connector and the female connector of a radio frequency connector provided in a preferred embodiment of the present utility model are plugged together;

[0021] Figure 2 Schematic diagram of the structure when the male connector and the female connector of a radio frequency connector provided in a preferred embodiment of the present utility model are separated;

[0022] Figure 3 For Figure 1 Cross-sectional view taken along the center of the radio frequency connector shown in;

[0023] Figure 4 Cross-sectional view taken along the center of the female terminal provided in a preferred embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the male terminal provided in a preferred embodiment of the present utility model;

[0025] Figure 6 Cross-sectional view of the plugged state of the male terminal and the female terminal of a new type of terminal provided in a preferred embodiment of the present utility model;

[0026] Figure 7 Cross-sectional view of the plugged state of the male housing and the female housing of a new type of terminal provided in a preferred embodiment of the present utility model;

[0027] Figure 8 For Figure 7 Schematic diagram of the structure of the female housing in; Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] As Figures 1 to 3 shown, an embodiment of the present utility model provides a radio frequency connector, which includes a female connector 100 and a male connector 200 that are plugged and matched with each other. The female connector 100 includes a female plastic housing 1, a female housing 2, a female insulating medium 3, and a female terminal 4. The female terminal 4 is coaxially fixed in the female housing 2 through the female insulating medium 3 to form a first terminal assembly. A first installation cavity 1a is provided in the female plastic housing 1. The first terminal assembly is installed in the first installation cavity 1a through a holding member. The tail end of the first terminal assembly is connected to a coaxial cable 10 to realize signal transmission.

[0030] The male terminal connector 200 includes a male housing 6' composed of a hollow cylindrical male outer housing 5 and a male housing body 6, a male insulating medium 7, and male terminals 8. The male terminals 8 are fixedly installed in the male housing body 6 through the male insulating medium 7. The male housing body 6 has a shielding body 61 and a welding body 62. A male plastic housing 5 is coaxially sleeved outside the shielding body 61 for docking with the female terminal connector 100. A plurality of welding pins 64 are vertically provided below the welding body 62 to facilitate welding the male terminal connector to a PCB board (not shown in the figure) of a vehicle-mounted device. The female terminal connector 200 is provided with a locking mechanism that is symmetric left and right. The locking mechanism includes a secondary locking structure 9. The secondary locking structure 9 includes an integrally injection-molded mounting body and an actuating body. The mounting body is a fixed frame 901. There are two groups of the actuating bodies, symmetrically arranged on the left and right sides of the fixed frame 901. Each group of actuating bodies has the same structure and includes a supporting part, a pressing part, and a fastening part 906.

[0031] In this preferred embodiment, to achieve highly reliable signal connection, the above radio frequency connectors (including the female terminal connector and the male terminal connector) adopt a new and reliable inner conductor structure, and its manufacturing process is not limited to stamping.

[0032] The female terminal 4 is composed of a female housing 41 with a cylindrical structure and an intermediate conductor 42. The front end of the female housing 41 is provided with a female contact hole 411. The intermediate conductor 42 is in a columnar shape, and its side surface has a contact protrusion 42a electrically connected to the female contact hole 411. Its front end is provided with a front protrusion 421. The intermediate conductor 42 is integrally sleeved in the female contact hole 411 of the female housing and can make contact sliding along the inner wall surface of the female contact hole 411.

[0033] The front end of the male terminal 8 is provided with a male contact hole 81, and a circumferentially annular contact flange 82 is provided on the outer wall of the contact area where it is inserted and matched with the female terminal 4. The front end is in a claw shape structure, and at least two contact lobes are formed on the contact flange. In this embodiment, there are six contact lobes.

[0034] When the male and female terminals are plugged and mated, the contact flange 82 of the male terminal 8 slides along the inner wall surface of the female contact hole 411 of the female terminal housing 41 and protrudes into the female contact hole 411, forming at least one electrical contact point c1. The front protrusion 421 of the intermediate conductor 42 protrudes into the male contact hole 81 under the pushing action of the male terminal 8. In this way, two support points z1 and z2 are formed at two positions between the front protrusion 421 of the intermediate conductor 42 and the inner wall of the male contact hole 81 and between the inner wall surface of the female contact hole 411 and the front outer wall 83 of the male terminal. These two support points z1 and z2 are located at the front and rear ends of the electrical contact point c1. Such a structure is similar to a simply supported beam structure, which can achieve a stable and reliable electrical contact effect of two-point support and multi-point contact, and further achieve the purpose of reliable contact, high stability and high vibration and shock resistance.

[0035] Preferably, at least one of the outer edges of the female contact hole 411 of the female terminal and the male contact hole 81 of the male terminal is provided with a guiding surface 411a, 81a, which is beneficial to better guiding the plugging and unplugging actions.

[0036] More specifically, when the male terminal and the female terminal are mated and inserted, the male terminal 8 is inserted into the female terminal housing 41 through the guiding surface 411a. After insertion, the contact flange 82 contacts the inner hole wall of the female terminal housing 41 and provides a positive pressure under compression. The front end of the male terminal 8 contacts the intermediate conductor 42, expanding the cantilever of the male terminal to ensure that the contact flange 82 provides sufficient contact force. In this way, two support points z1 and z2 are formed, and the contact flange 82 can continuously and reliably contact the inner hole wall of the female terminal housing 41, thus achieving the effect of highly reliable electrical connection.

[0037] Furthermore, in a more preferred embodiment, to achieve a highly reliable signal ground connection, the above radio frequency connector (including the male connector and the female connector) adopts a new and reliable outer conductor structure, and its manufacturing process is not limited to stamping.

[0038] More specifically, the male end housing 6' is composed of a hollow cylindrical male end outer sleeve 5 and a male end housing body 6. The front end of the female end housing 2 is provided with claw-shaped contact petals 21. The male end outer sleeve 5 can be a metal part or a plastic part. In this embodiment, the male end outer sleeve 5 is set as an insulating plastic part, which is sleeved on the front end of the male end housing body 6 to form a contact space 5a for the contact petals 21 to slide in a contact manner. The contact area between the claw-shaped contact petals 21 at the front end of the female end housing 2 and the male end housing body 6 has a waist-drum-shaped flange 21a, forming at least 6 linear contact areas, but not limited to 6, so as to achieve a better contact effect. The male end housing 6' and its male end housing body 6 form a contact type with at least one electrical contact point c' and two support points z1', z2' in the contact area with the female end housing 2 by means of the bridging action of the male end outer sleeve 5, so as to achieve the effect of high-reliability electrical connection.

[0039] Further, the front end of the claw-shaped contact petal 21 is provided with an arc-shaped guiding surface 21b, which is beneficial for guiding during plugging and unplugging.

[0040] More specifically, when the female end housing 2 is inserted and mated with the male end housing 6', the arc-shaped surface 21b at the front end of the contact arm of the female end housing 2 contacts the guiding surface 5b of the male end outer sleeve 5 and contracts under the action of the inner wall of the male end outer sleeve 5. Further, as the insertion continues, the waist-drum-shaped flange 21a on the contact arm contacts the outer circular surface of the male end housing body 6, and the waist-drum-shaped flange 21a of the female end housing 2 expands outward under force. In this way, z1' and z2' are used as support points in the structure, and the electrical contact point c' maintains continuous and reliable contact. This design theory of using two-point support on the left and right and force application in the middle improves the contact reliability and stability of the elastic connector of the RF connector, designs the outer conductor in an external contact form, reduces the interface impedance discontinuity introduced by the structural design and assembly gap, and provides the stability and consistency of high-frequency performance.

[0041] Specifically, the fixed frame 901 is sleeved on the insertion end of the female plastic housing 1. To make the fixed frame 901 more firmly fixed, fixing holes 902 are provided on the fixed frame 901, and fixing buckles 104 are provided on the outer wall of the insertion end of the female plastic outer housing 1. The fixed frame 901 is detachably clamped on the insertion end of the female plastic housing 1 through the fixing holes 902 and the fixing buckles 104. In addition, a stop block 903 extending in the insertion direction is provided at the front end of the fixed frame 901. The end of the stop block 903 can abut against the end face of the male housing 6 when the male connector 200 is inserted into and mated with the female connector 100, so as to perform axial limit on the insertion depth and avoid damaging the locking mechanism. The supporting part is formed on the left and right side walls of the fixed frame 901 and is perpendicular to the side wall of the fixed frame 901. The pressing part is formed at the top of the supporting part and extends in the wiring direction. The fastening part 906 is formed at the top of the supporting part and extends in the insertion direction, and a first barb 907 is provided on the inner side of the end of the fastening part 906. The front ends of the first barbs 907 are all chamfered. Correspondingly, a first secondary locking platform 63 is provided on the male housing 6 of the male connector 200. When the male connector is fully inserted into the female connector, the first barbs 907 of the fastening part 906 can automatically engage with the first secondary locking platform 63 under the action of elastic force to complete the locking after the male connector 200 and the female connector 100 are inserted and mated.

[0042] As Figure 2 and Figure 3 shown, as a preferred embodiment, in order to improve the reliability of connection with the female connector, a second barb 908 is further provided in the middle of the fastening part 906. The second barb 908 is located in front of the elastic clamping arm and the front end of the second barb 908 is chamfered. Correspondingly, a main locking boss 51 is provided at the corresponding position on the male outer sleeve 5, which is higher than the outer side surface of the male housing 6, so that one end of the main locking boss 51 close to the male housing 6 forms a second secondary locking structure capable of engaging with the second barb 908. And, the height of the second barb 908 protruding in the direction of the connector axis is the same as the height of the main locking limiting part 909 protruding in the direction of the connector axis, so that the limiting of the main locking structure can be synchronously released while the secondary locking structure 9 is unlocked. In this way, both the reliability of the structure is ensured and the locking state of the structure can be conveniently released.

[0043] In summary, the novel reliable terminals provided by the present invention have reliable contact during the mating of the pluggable pairs, realizing stable signal transmission. Therefore, the stability and vibration and shock resistance of the reliable terminals and the RF connectors of the reliable terminals with such a novel structure are high.

[0044] The above-described embodiments merely represent the implementation modes of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A new type of reliable terminal, used as an inner conductor of a radio frequency connector, comprising a female terminal and a male terminal that are plugged into each other, characterized in that: The female terminal is composed of a female shell with a cylindrical structure and an intermediate conductor. A female contact hole is provided at the front end of the female shell. The intermediate conductor is integrally sleeved in the female contact hole of the female shell and can slide in contact along the inner wall surface of the female contact hole. The female terminal and its female shell form a contact pattern with at least one electrical contact point and two supporting points with the male terminal in the contact area of ​​the two with the help of the bridging effect of the intermediate conductor.

2. The novel reliable terminal according to claim 1 is characterized in that: The intermediate conductor part is cylindrical and has a front convex portion at its front end; a male contact hole is provided at the front end of the male terminal, and a contact flange circumferentially arranged around the male terminal is provided on the outer wall of the contact area for plugging with the female terminal; when the male and female terminals are plugged in, the contact flange slides along the inner wall surface of the female contact hole and protrudes into the female contact hole to form at least one electrical contact point, and the front convex portion protrudes into the male contact hole under the pushing action of the male terminal, thereby forming two support points at the front and rear ends of the electrical contact point.

3. The novel reliable terminal according to claim 2 is characterized in that: The two supporting points are respectively formed between the front protrusion of the intermediate conductor and the wall of the male contact hole, and between the inner wall surface of the female contact hole and the front end outer wall of the male terminal.

4. The novel reliable terminal according to claim 2 or 3, characterized in that: A guide surface is provided at at least one of the outer edges of the female contact hole of the female terminal and the male contact hole of the male terminal.

5. The novel reliable terminal according to claim 2 or 3, characterized in that: The front end of the male terminal is a claw-shaped structure, and at least two contact petals are formed on the contact flange.

6. A new type of reliable terminal, used as the outer conductor of a radio frequency connector, comprising a female end housing and a male end housing that are plugged into each other, characterized in that: The male end shell is composed of a hollow cylindrical male end outer shell body and a male end outer shell body. The front end of the female end shell is provided with a claw-shaped contact flap. The male end outer shell body is sleeved on the front end of the male end outer shell body to form a contact space for accommodating the contact sliding of the claw-shaped contact flap. The male end shell and its male end outer shell body form a contact pattern with at least one electrical contact point and two supporting points in the contact area of ​​the two with the help of the bridging effect of the male end outer shell body.

7. The novel reliable terminal according to claim 6 is characterized in that: The claw-shaped contact petal at the front end of the female end housing and the contact area with the male end housing have a waist drum-shaped flange to form at least 6 linear contact areas.

8. The novel reliable terminal according to claim 6 or 7, characterized in that: The front end of the claw-shaped contact flap is provided with an arc-shaped guide surface.

9. A radio frequency connector, comprising a novel reliable terminal as an inner conductor of a radio frequency connector according to any one of claims 1 to 5, characterized in that: The female terminal is composed of a female shell with a cylindrical structure and an intermediate conductor part. The front end of the female shell is provided with a female contact hole, and the intermediate conductor part is integrally sleeved in the female contact hole of the female shell; the intermediate conductor part is cylindrical, and a front convex part is provided at its front end; the front end of the male terminal is provided with a male contact hole, and a contact flange with a radial circumference is provided on the outer wall of the contact area that is plugged with the female terminal; when the male and female terminals are plugged together, the contact flange slides along the inner wall surface of the female contact hole and protrudes into the female contact hole to form at least one electrical contact point, and the front convex part protrudes into the male contact hole under the pushing action of the male terminal, thereby forming two support points at the front and rear ends of the electrical contact point.

10. The radio frequency connector according to claim 9, characterized in that: It also has a new type of reliable terminal used as the outer conductor of the radio frequency connector, including a female shell and a male shell that are plugged into each other, the male shell is composed of a hollow cylindrical male outer shell and a male shell body, the front end of the female shell is provided with a claw-shaped contact flap, the male outer shell is sleeved on the front end of the male shell body to form a contact space for accommodating the contact sliding of the claw-shaped contact flap, the male shell and its male shell body form a contact pattern with at least one electrical contact point and two supporting points in the contact area of ​​the two with the help of the bridging effect of the male outer shell.

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