Radio frequency connector

Abstract

The utility model discloses a radio frequency connector, which comprises a male end connector and a female end connector which are mutually plugged and matched, the female end connector is provided with locking mechanisms which are in bilateral symmetry, and each locking mechanism comprises a main lock structure and an auxiliary lock structure. According to the utility model, the main lock structure and the auxiliary lock structure are arranged in a linkage manner, the operation is convenient, and multiple locking actions of the connector locking structure can be directly and quickly completed only through one-time plugging; in the unlocking process, only the pressing parts on the two sides of the auxiliary lock structure need to be pinched with the hand, and limiting on the main lock structure can be relieved while the locking state of the auxiliary lock structure is relieved. The locking structures are symmetrically arranged on the side faces of the connector, deflection abnormity is not prone to occurring, locking force is more stable and even, main and auxiliary lock structures are matched, multiple locking is achieved, a locking function area can be observed, stable connection of male and female connectors is guaranteed through the structures, the vibration and impact resistance is high, operation and self-inspection of a whole machine production line are facilitated, and the service life of the male and female connectors is prolonged. And a complex application scene in the market can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a radio frequency connector. Background Art

[0002] The vehicle connector is the link between the various subsystem modules in the car. With the rapid development of new energy vehicles and the complexity of the application environment, cars, as mobile devices, often face complex mechanical environments and harsh climatic conditions. Vehicle components are required to meet environmental requirements such as extreme climate (high temperature, low temperature, humidity) and vibration and shock, and have reliable contact stability under harsh mechanical vibration and shock conditions to ensure stable transmission of vehicle signals.

[0003] Most of the similar products on the market are sealed electrical connectors for transmitting high-speed radio frequency or differential signals in vehicles, such as the publication number CN216145871U. The connector buckles are arranged on one side of the top, and a secondary locking mechanism is required to provide locking protection to prevent accidental touch. The disadvantages of this design are: 1) It is inconvenient to operate, and multiple locking actions are required during use; 2) It is arranged on one side, and the male and female mating is prone to abnormal deflection; 3) The connector buckles are not fastened tightly, which can easily lead to a larger interface gap and affect the impedance connectivity. Utility Model Content

[0004] The utility model aims to provide a radio frequency connector with reliable connection, convenient operation, and resistance to vibration and mechanical shock, so as to solve the shortcomings of the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A radio frequency connector comprises a male connector and a female connector which are plugged into and matched with each other, the female connector being provided with a left-right symmetrical locking mechanism, the locking mechanism comprising a main locking structure and a secondary locking structure, wherein the main locking structure comprises an elastic clamping arm which is arranged at the left and right side wall ends of the female plastic shell of the female connector and extends in the plugging direction; correspondingly, main locking bosses are arranged at both sides of the male plastic shell of the male connector, and main locking slots which are engaged with the elastic clamping arm are arranged on the main locking bosses; the secondary locking structure comprises a supporting portion which is fixedly arranged on the left and right side walls of the female plastic shell, a pressing portion which is located at the top of the supporting portion and extends in the wiring direction, and a buckling portion which is located at the top of the supporting portion and extends in the plugging direction, and a first inverted hook is arranged at the end of the buckling portion; correspondingly, a first secondary locking return platform which is engaged with the first inverted hook is arranged on the metal shell of the male connector.

[0007] Furthermore, the elastic clamping arm includes a first clamping arm and a second clamping arm which are arranged in parallel, and arc-shaped clamping protrusions are arranged facing each other on the first clamping arm and the second clamping arm. Correspondingly, the main lock clamping groove is an arc-shaped groove symmetrically arranged on the main lock boss.

[0008] Furthermore, a main lock limiting portion extending downwardly and used to limit the deformation degree of the elastic clamping arm is provided in the middle of the buckling portion.

[0009] Furthermore, the main lock limiting portion includes two limiting surfaces respectively arranged beside the first clamping arm and the second clamping arm to prevent the elastic clamping arm from loosening after being locked with the main lock slot.

[0010] Furthermore, a second inverted hook is provided in the middle of the snap-fitting portion, and the second inverted hook is located at the front end of the elastic arm. Correspondingly, the main lock boss is higher than the outer side surface of the metal shell, so that the main lock boss is close to one end of the metal shell to form a second secondary lock return platform that can be engaged with the second inverted hook.

[0011] Furthermore, the height of the second inverted hook protruding toward the axis of the connector is the same as the height of the primary lock limiting portion protruding toward the axis of the connector, so that the secondary lock structure can be unlocked and the limiting of the primary lock structure can be released synchronously.

[0012] Furthermore, an observation window for observing the locking status of the main lock structure is provided on the buckling portion.

[0013] Furthermore, the front ends of the first barb and the second barb are both rounded.

[0014] Furthermore, the secondary lock structure further comprises a fixing frame, the fixing frame is sleeved on the plug-in end of the female plastic housing, and the supporting portion is integrally fixed on the side wall of the fixing frame.

[0015] Furthermore, a stopper extending in the plugging direction and used for axially limiting the plugging depth is provided at the front end of the fixing frame.

[0016] Compared with the prior art, the radio frequency connector provided by the utility model has the following beneficial technical effects:

[0017] 1. The utility model arranges the locking structure symmetrically on the side of the connector, which is not prone to abnormal deflection and has a more stable and uniform locking force. The main and auxiliary lock structures cooperate with each other, multiple locking, and the locking functional area is observable. This structure ensures stable connection between male and female connectors, high vibration and impact resistance, and is convenient for whole machine production line operation and self-inspection, and can meet complex application scenarios in the market.

[0018] 2. The main and auxiliary lock structures of the utility model are linked and easy to operate. Only one plugging is required to directly and quickly complete the multiple locking actions of the connector locking structure. When unlocking, only the pressing parts on both sides of the auxiliary lock structure need to be pinched by hand. While releasing the locking state of the auxiliary lock structure, the limit of the main lock structure can also be released. Then, the male connector and the female connector can be quickly separated by directly pulling back. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 A schematic diagram of the overall structure of a male connector and a female connector of a radio frequency connector provided by an embodiment of the utility model when plugged in;

[0021] Figure 2 A schematic diagram of the overall structure of a radio frequency connector provided by an embodiment of the utility model when the male connector and the female connector are separated;

[0022] Figure 3 An exploded view of a radio frequency connector provided by an embodiment of the utility model;

[0023] Figure 4 A side view of a radio frequency connector provided by an embodiment of the utility model;

[0024] Figure 5 A cross-sectional view along AA of a radio frequency connector provided by an embodiment of the utility model;

[0025] Figure 6 A schematic diagram of the structure of a female plastic housing in a radio frequency connector provided by an embodiment of the utility model;

[0026] Figure 7 A schematic structural diagram of a secondary lock structure in a radio frequency connector provided by an embodiment of the utility model;

[0027] Figure 8 A schematic diagram of the structure of a metal shell in a radio frequency connector provided by an embodiment of the utility model;

[0028] Fig. 9 The present invention is a schematic structural diagram of a male plastic housing in a radio frequency connector provided by an embodiment of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-female end plastic shell, 101-first clamp arm, 102-second clamp arm, 103-clamp convex part, 104-fixing buckle, 2-outer conductor, 3-female end insulating medium, 4-female end inner conductor, 5-male end plastic shell, 501-main lock boss, 502-main lock slot, 503-second secondary lock return platform, 6-metal shell, 601-shielding body, 602-welding body, 603-first secondary lock return platform, 604-welding pin, 7-male end insulating medium, 8-male end inner conductor, 9-secondary lock structure, 901-fixing frame, 902-fixing hole, 903-stopper, 904-support part, 905-pressing part, 906-fastening part, 907-first inverted hook, 908-second inverted hook, 909-main lock limiting part, 910-observation window, 10-coaxial cable. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figures 1 to 5 As shown, the embodiment of the utility model provides a radio frequency connector, including a male connector and a female connector that are plugged into each other, the female connector includes a female plastic shell 1, an outer conductor 2, a female insulating medium 3 and a female inner conductor 4, the female inner conductor 4 is coaxially fixed in the outer conductor 2 through the female insulating medium 3 to form a first terminal assembly, the female plastic shell 1 is provided with a first installation chamber, the first terminal assembly is installed in the first installation chamber through a retaining member, and the tail end of the first terminal assembly is connected to the coaxial cable 10 to achieve signal transmission. The male connector includes a male plastic shell 5, a metal shell 6, a male insulating medium 7, and a male inner conductor 8. The male end inner conductor 8 is fixedly installed in the metal shell 6 through the male end insulating medium 7. The metal shell 6 includes a shielding body 601 and a welding body 602. The shielding body 601 is coaxially sleeved with a male end plastic shell 5 for docking with the female end connector; a plurality of welding pins 604 are vertically arranged below the welding body 602 to facilitate welding the male end connector to the PCB board of the vehicle-mounted device. The female end connector is provided with a left-right symmetrical locking mechanism, which includes a main locking structure and a secondary locking structure 9, specifically:

[0033] like Figure 6 and Fig. 9As shown, in this embodiment, the main lock structure includes elastic clamping arms, and there are two groups of elastic clamping arms, which are symmetrically arranged at the left and right side wall ends of the female end plastic shell 1 of the female end connector and extend in the plug-in direction; each group of elastic clamping arms includes a first clamping arm 101 and a second clamping arm 102 arranged in parallel, and the first clamping arm 101 and the second clamping arm 102 are provided with arc-shaped clamping protrusions 103 facing each other, and correspondingly, main lock bosses 501 are provided on both sides of the male end plastic shell 5 of the male end connector, and the main lock bosses 501 are provided with main lock grooves 502 that are engaged with the elastic clamping arms, and the main lock grooves 502 are arc-shaped grooves symmetrically arranged on the upper and lower side walls of the main lock bosses 501, so that the main lock bosses 501 are butterfly-shaped. During the plugging process of the female connector and the male connector, after the latching protrusion 103 contacts the side of the main lock boss 501, the first latch arm 101 and the second latch arm 102 will open in the opposite direction to the outside under the guidance of the arc surface and the elastic force of the latch arm itself. When the female connector and the male connector are completely plugged in, the latching protrusion 103 of the elastic latch arm will be stuck in the main lock slot 502 to complete the locking.

[0034] like Figure 7 and Figure 8 The secondary lock structure 9 includes an integrally injection-molded installation body and an execution body. The installation body is a fixed frame 901. There are two groups of execution bodies, which are symmetrically arranged on the left and right sides of the fixed frame 901. Each group of execution bodies has the same structure and includes a supporting part, a pressing part and a buckling part 906.

[0035] Specifically, the fixing frame 901 is sleeved on the plug-in end of the female plastic shell 1. In order to make the fixing frame 901 more firmly fixed, a fixing hole 902 is opened on the fixing frame 901, and a fixing buckle 104 is provided on the outer wall of the plug-in end of the female plastic shell 1. The fixing frame 901 is detachably fixed to the plug-in end of the female plastic shell 1 through the fixing hole 902 and the fixing buckle 104; in addition, a stopper 903 extending in the plug-in direction is provided at the front end of the fixing frame 901, and the end of the stopper 903 can abut against the end face of the metal shell 6 when the male connector and the female connector are plugged in, thereby axially limiting the plug-in depth to avoid damage to the locking mechanism. The supporting portion is formed on the left and right side walls of the fixing frame 901 and is perpendicular to the side walls of the fixing frame 901; the pressing portion is formed on the top of the supporting portion and extends in the wiring direction; the snap-fitting portion 906 is formed on the top of the supporting portion and extends in the plug-in direction; and a first barb 907 is provided on the inner side of the end of the snap-fitting portion 906, and the front end of the first barb 907 has rounded corners; correspondingly, a first secondary locking return platform 603 is provided on the metal shell 6 of the male connector. When the male connector is fully inserted into the female connector, the first barb 907 of the snap-fitting portion 906 can automatically engage with the first secondary locking return platform 603 under the action of elastic force to complete the locking after the male connector and the female connector are plugged in.

[0036] like Figure 3 and Figure 7 As shown, in order to prevent the elastic card arm from loosening after being locked with the main lock slot 502, a main lock limiting portion 909 protruding downward is provided in the middle of the snap-fit ​​portion 906. The main lock limiting portion 909 is located on the deformation path of the first card arm 101 and the second card arm 102, and specifically includes two limiting surfaces respectively arranged beside the first card arm 101 and the second card arm 102, so as to limit the deformation degree of the first card arm 101 and the second card arm 102 in the locked state.

[0037] like Figure 5 and Figure 7 As shown, as a preferred embodiment, in order to improve the reliability of connection with the female connector, a second hook 908 is further provided in the middle of the buckle portion 906, the second hook 908 is located in front of the elastic clamp arm and the front end of the second hook 908 has a rounded corner. Correspondingly, the main lock boss 501 is higher than the outer side of the metal shell 6, so that the end of the main lock boss 501 close to the metal shell 6 forms a second secondary lock check platform 503 that can be engaged with the second hook 908. In addition, the height of the second hook 908 protruding toward the axis of the connector is the same as the height of the main lock limit portion 909 protruding toward the axis of the connector, so that the secondary lock structure 9 can be unlocked and the limit of the main lock structure can be released synchronously.

[0038] Furthermore, an observation window 910 is provided on the buckle portion 906 to facilitate the user to observe the locking status of the main lock structure at any time to ensure reliable connection between the male connector and the female connector.

[0039] The working process of the locking mechanism of the radio frequency connector provided by the utility model is as follows:

[0040] Locking of the male connector and the female connector: When the male connector is inserted into the female connector, the first hook 907 of the secondary lock structure 9 contacts the main lock boss 501 of the male plastic shell 5. Under the thrust and the guiding action of the arc-shaped contact surface, the buckle 906 is lifted. At the same time, the main lock limiter 909 will also avoid the space for the elastic deformation of the elastic clamp arm in the main lock structure. When the clamping protrusion 103 on the elastic clamp arm contacts the main lock boss 501, the elastic clamp arm will first open outwards and then retract under the action of the cantilever elastic force. When the stopper 903 contacts the metal shell 6, the arc-shaped clamping protrusion 103 will be completely embedded in the main lock slot 502 of the main lock boss 501, and the main lock structure is locked in place. At the same time, as the insertion deepens, the buckling part 906 in the lifted state will also be locked in place after the main lock structure. Under the action of the cantilever elastic force, the first inverted hook 907 will be buckled with the first secondary lock return platform 603, and the second inverted hook 908 will be buckled with the second secondary lock return platform 503. The main lock limit part 909 will rebound to the initial position on both sides of the elastic clamping arm to limit the elastic clamping arm from opening outward. Finally, by observing the observation window 910 on the buckling part 906, it can be ensured that both the main and secondary lock structures 9 are in a locked state.

[0041] Unlocking the male and female connectors: You only need to pinch the pressing parts on both sides of the secondary lock structure 9 with your hands, and the locking area of ​​the secondary lock structure 9 (i.e. the first inverted hook 907, the second inverted hook 908, and the main lock limiting part 909) will be lifted up under the action of the lever, and the main lock limiting part 909 will gradually give way to the deformation space of the elastic clamping arm. When the second inverted hook 908 is higher than the upper top surface of the main lock boss 501, pull the connector axially backward, and release the locking state of the secondary lock structure 9 under the action of the pulling force. At the same time, the elastic clamping arm of the main lock structure will expand outward under the guidance of the arc-shaped clamping protrusion 103 and the arc-shaped main lock slot 502, thereby synchronously releasing the locking state of the main lock structure. After releasing your hands, the elastic parts of the main and secondary lock structures 9 will automatically rebound to their original positions, preparing for the next connection between the male and female connectors.

[0042] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A radio frequency connector, comprising a male connector and a female connector that are plugged into each other, characterized in that: The female connector is provided with a left-right symmetrical locking mechanism, which includes a main locking structure and a secondary locking structure (9), wherein: The main lock structure comprises elastic clamping arms arranged at the left and right side wall ends of the female end plastic shell (1) of the female end connector and extending in the plugging direction; correspondingly, main lock bosses (501) are arranged on both sides of the male end plastic shell (5) of the male end connector, and main lock slots (502) are arranged on the main lock bosses (501) to engage with the elastic clamping arms; The secondary lock structure (9) includes a support portion fixedly mounted on the left and right side walls of the female end plastic shell (1), a pressing portion located at the top of the support portion and extending in the wiring direction, and a snap-fit ​​portion (906) located at the top of the support portion and extending in the plug-in direction, wherein a first barb (907) is disposed at the end of the snap-fit ​​portion (906); correspondingly, a first secondary lock return platform (603) which is snap-fitted with the first barb (907) is disposed on the metal shell (6) of the male end connector.

2. A radio frequency connector according to claim 1, characterized in that: The elastic clamping arm comprises a first clamping arm (101) and a second clamping arm (102) which are arranged in parallel, and arc-shaped clamping protrusions (103) are arranged on the first clamping arm (101) and the second clamping arm (102) facing each other, and correspondingly, the main lock clamping groove (502) is an arc-shaped groove symmetrically arranged on the main lock boss (501).

3. A radio frequency connector according to claim 2, characterized in that: A main lock limiting portion (909) extending downwards and used to limit the degree of deformation of the elastic clamping arm is provided in the middle of the buckling portion (906).

4. A radio frequency connector according to claim 3, characterized in that: The main lock limiting portion (909) comprises two limiting surfaces respectively arranged beside the first clamping arm (101) and beside the second clamping arm (102) to prevent the elastic clamping arm from loosening after being locked with the main lock clamping slot (502).

5. The radio frequency connector according to claim 3, characterized in that: A second inverted hook (908) is provided in the middle of the snap-fitting portion (906), and the second inverted hook (908) is located at the front end of the elastic arm. Correspondingly, the main lock boss (501) is higher than the outer side surface of the metal shell (6), so that the main lock boss (501) is close to one end of the metal shell (6) to form a second secondary lock return platform (503) that can be snap-fitted with the second inverted hook (908).

6. A radio frequency connector according to claim 5, characterized in that: The height of the second hook (908) protruding toward the axis of the connector is the same as the height of the main lock limit portion (909) protruding toward the axis of the connector, so that when the secondary lock structure (9) is unlocked, the limit on the main lock structure can also be released synchronously.

7. The radio frequency connector according to claim 5, characterized in that: The buckle portion (906) is provided with an observation window (910) for observing the locking status of the main lock structure.

8. The radio frequency connector according to claim 5, characterized in that: The front ends of the first barb (907) and the second barb (908) are both rounded.

9. The radio frequency connector according to claim 1, characterized in that: The secondary lock structure (9) further comprises a fixing frame (901), wherein the fixing frame (901) is sleeved on the plug-in end of the female plastic housing (1), and the supporting portion is integrally fixed on the side wall of the fixing frame (901).

10. The radio frequency connector according to claim 9, characterized in that: A stopper (903) extending in the plugging direction and used for axially limiting the plugging depth is provided at the front end of the fixing frame (901).

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