Preassembled sealed radio frequency coaxial male joint

Abstract

The utility model discloses a preassembled sealed radio frequency coaxial male joint, and belongs to the technical field of radio frequency connector production. The male joint comprises an outer conductor; comprising a shell, a connecting flange and a threaded connector, a sealing cavity is formed in one side of the connecting flange, and a connecting chamber is formed in the other side of the sealing cavity; the connecting sleeve comprises a connecting port; the sealing block comprises a completely through passage, a first sealing groove and a second sealing groove; the guide pin comprises a contact and a compression spring. According to the preassembled and sealed radio frequency coaxial male joint, the sealing effect is ensured through the preassembled sealing block, the assembling stability and consistency are improved, the installation process is simplified, the manual operation risk is reduced, the installation efficiency is improved, the sealing structure is optimized through the design of the guide pin and the contact, the sealing performance of the connector is enhanced, the compression spring provides continuous pressure, and the service life of the connector is prolonged. Therefore, the contact is adaptively aligned with the electrical interface of the equipment, and the stability of the connector in a dynamic environment is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to radio frequency connector technical field, especially a kind of preloaded sealed radio frequency coaxial male connector. BACKGROUND

[0002] Under the background of the rapid development of modern communication technology, radio frequency connector plays a vital role in the field of wireless communication, satellite communication, radar system etc. In the manufacturing and using process of traditional radio frequency connector, there are many problems, first, in many application occasions, radio frequency coaxial connector needs to be exposed in harsh environment, such as damp, high temperature or corrosive gas etc., traditional radio frequency coaxial connector cannot effectively prevent the invasion of moisture, dust and corrosive gas after connection, which not only leads to signal attenuation, but also may cause equipment failure, second, the sealing of existing radio frequency coaxial connector often needs to be assembled on site when using, process is cumbersome and error-prone, so as to cause the instability of sealing performance, in addition, in the existing design, sealing sheet or sealing O-ring used for sealing is often exposed to air, very easy to be corroded and aged, reduce its service life.

[0003] Based on the above problems, a new type of radio frequency coaxial connector design is needed to improve its sealing, simplify installation process and prolong service life, for this purpose, we propose a kind of preloaded sealed radio frequency coaxial male connector to solve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of preloaded sealed radio frequency coaxial male connector, to solve the deficiency of the sealing performance, installation convenience and durability of existing radio frequency coaxial connector, to meet the demand of modern communication technology to high-performance radio frequency connector.

[0005] To solve the above technical problems, the utility model provides a kind of preloaded sealed radio frequency coaxial male connector, including outer conductor;The outer conductor is annular straight cylinder, including shell, the connecting flange of being arranged in the shell one side, and the threaded interface of being arranged in the connecting flange other side, the connecting flange towards shell one side forms sealing cavity, the other side of the sealing cavity is connecting chamber;

[0006] Connecting sleeve, the connecting sleeve is connected on shell by screw thread, and it includes connecting port, and the connecting port is used to connect with electrical equipment;

[0007] Sealing block, the sealing block includes complete through passage, first sealing groove being arranged in the outer wall of the sealing block, and second sealing groove being arranged in the inner wall of the passage;

[0008] The guide needle is a columnar structure inserted into the passage of the sealing block, comprising a contact head arranged at one end and a compression spring arranged outside the contact head.

[0009] Preferably, the sealing block is installed in a sealing cavity, the first sealing groove is full-wrapping, and the sealing block is sealed by a first sealing ring installed in the first sealing groove.

[0010] Preferably, the second sealing groove is sealed by a second sealing ring, the second sealing groove is half-wrapping, the guide needle can slide in the section of the second sealing groove, and the slidable distance is consistent with the elastic range of the compression spring.

[0011] Preferably, the contact head is inserted into the connecting port from the connecting chamber, and the other end of the compression spring is fixed to the inner wall of the connecting sleeve, so as to improve the electrical connection strength of the contact head and the external electrical equipment.

[0012] Preferably, the connecting flange comprises a third sealing groove and a plurality of connecting holes arranged at the edge of the third sealing groove.

[0013] Compared with the prior art, the pre-installed sealed radio frequency coaxial male connector of the utility model is pre-installed by a mechanical pressing device, and the sealing block, the guide needle and the sealing ring are installed in the sealing cavity of the male head outer conductor, the electrical equipment is connected with the contact head on the guide needle after pre-installation, and finally the elastic locking is performed through the compression spring.

[0014] 1. The pre-installed sealing block in the radio frequency coaxial male connector can ensure the position accuracy of the sealing block and the sealing ring, thereby improving the assembly sealing effect, ensuring the stability and consistency between parts, greatly simplifying the installation process, reducing the human operation risk and improving the overall installation efficiency.

[0015] 2. The design of the guide needle and the contact head can better cooperate with the sealing structure, enhance the sealing performance of the connector, the compression spring can provide continuous pressure, the contact head can be self-adaptively aligned with the electrical interface of the equipment, the contact head and the electrical interface can always maintain good contact, and the use of the compression spring can effectively absorb external vibration and impact, thereby enhancing the stability of the connector in a dynamic environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is the overall structure schematic diagram of the pre-installed sealed radio frequency coaxial male connector provided by the utility model;

[0017] Fig. 2 is the structure explosion schematic diagram of the pre-installed sealed radio frequency coaxial male connector provided by the utility model;

[0018] Fig. 3It is the cross section view of a pre-sealed radio frequency coaxial male joint provided by the utility model;

[0019] In the figure: 1, outer conductor; 101, shell; 102, connecting flange; 102a, third sealing groove; 102b, connecting hole; 103, threaded interface; 104, sealing cavity; 105, connecting chamber; 2, connecting sleeve; 201, connecting port; 3, sealing block; 301, passage; 302, first sealing groove; 303, second sealing groove; 304, first sealing ring; 305, second sealing ring; 4, guide needle; 401, contact; 402, compression spring. DETAILED DESCRIPTION

[0020] The utility model makes further detailed description in combination with the drawings and specific embodiment. According to the following description and claims, the advantages and features of the utility model will be more clear. It should be noted that the drawings all adopt very simplified form and all use non-precise proportion, only to facilitate, clear and assist the purpose of description of the embodiment of the utility model.

[0021] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. EMBODIMENT

[0023] The utility model provides a kind of pre-sealed radio frequency coaxial male joint, please refer to Figs. 1-3The outer conductor 1 is in the shape of a ring-shaped straight cylinder, comprising an outer shell 101, a connecting flange 102 arranged on one side of the outer shell 101, and a threaded interface 103 arranged on the other side of the connecting flange 102, the connecting flange 102 forms a sealing cavity 104 towards one side of the outer shell 101, and the other side of the sealing cavity 104 is a connecting chamber 105; a connecting sleeve 2 is threadedly connected to the outer shell 101, comprising a connecting port 201 for connecting with an electrical device; a sealing block 3 comprises a through passage 301, a first sealing groove 302 arranged on the outer wall of the sealing block 3, and a second sealing groove 303 arranged on the inner wall of the through passage 301; a guide pin 4 is in the shape of a column, inserted into the through passage 301 of the sealing block 3, comprising a contact 401 arranged on one end, and a compression spring 402 surrounding the outside of the contact 401.

[0024] The sealing block 3 is installed in the sealing cavity 104, the first sealing groove 302 is fully wrapped, and the sealing block 3 is sealed by a first sealing ring 304 installed in the first sealing groove 302; the second sealing groove 303 is sealed by a second sealing ring 305 between the second sealing groove 303 and the guide pin 4, the second sealing groove 303 is semi-wrapped, the guide pin 4 can slide in the section of the second sealing groove 303, and the slidable distance is consistent with the elastic range of the compression spring 402; the contact 401 is inserted into the connecting port 201 from the connecting chamber 105, and the other end of the compression spring 402 is fixed to the inner wall of the connecting sleeve 2, for improving the electrical connection strength between the contact 401 and the external electrical device; the connecting flange 102 comprises a third sealing groove 102a and a plurality of connecting holes 102b arranged on the edge thereof.

[0025] It should be noted that the outer conductor 1 and the connecting sleeve 2 are made of stainless steel material, which has excellent corrosion resistance and high mechanical strength, and is more suitable for the working environment of the radio frequency connector, the connecting flange 102 is square, and the four corners are chamfered, comprising a ring-shaped third sealing groove 102a and connecting holes 102b arranged at the four corners, the connecting holes 102b are used to fix the cable connector mounting member, the center of the connecting flange 102 is the threaded interface 103, the outer wall of the threaded interface 103 is provided with external threads, and the external threads are connected with the female threads of the outer conductor 1, thereby connecting the external cable with the guide pin 4.

[0026] Preferably, the connecting sleeve 2 is used for plugging into the port of the electrical equipment through the connecting port 201 and locking, the connecting port 201 is in communication with the contact 401 of the guide needle 4, the electrical equipment is connected with the guide needle 4 through the connecting port for signal transmission, the connecting port 201 is sealed with the outside world through the contact 401, the contact point of the contact is hemispherical, the contact area can be increased, and the contact resistance can be reduced, when the port of the electrical equipment is inserted into the connecting port 201, the contact 401 abuts against the port position under the elastic force of the compression spring 402, the electrical connection strength is increased, and poor contact is prevented.

[0027] Preferably, the outer wall of the sealing block 3 is provided with two first sealing grooves 302, and the inner wall of the passage 301 is also provided with two second sealing grooves 303, the sealing grooves are used for inserting sealing rings, the sealing block-the first sealing ring 302-the close fit of the inner wall of the sealing cavity 104 achieves the effect of effectively achieving the air-tightness, and the combination of the second sealing ring 305 and the multiple sealing structures not only enhances the sealing performance, but also ensures more reliable sealing effect.

[0028] Preferably, the connecting port 201 adopts a circular jack design with four petals. This structure divides the jack into four petals, forming a unique geometric shape, so that the plug can be better aligned and fixed when inserted. The four-petal design provides a larger contact area, enhancing the stability of the plug-in, preventing shifting or loosening during connection. The contact 401 is inserted into the connecting port 201, and is compressed by the compression spring 402, as shown in Fig. 3 When the compression spring 402 pulls the guide needle 4 to slide in the passage 301, the guide needle 4 can only slide within the sliding distance of the second sealing groove 303, so that the contact 401 is self-adapted to align with the electrical interface of the device.

[0029] In summary, the pre-sealed RF coaxial male connector of the utility model is pre-installed in the sealing cavity of the male head outer conductor by a mechanical compression device, the electrical equipment is connected with the contact on the guide needle after pre-installation, and finally the elastic locking is performed by the compression spring.

[0030] By pre-installing the sealing block in the RF coaxial male connector, the position accuracy of the sealing block and the sealing ring can be ensured, the assembly sealing effect is improved, the stability and consistency between parts are ensured, the installation process is greatly simplified, the human operation risk is reduced, and the overall installation efficiency is improved. In addition, the design of the guide needle and the contact can better cooperate with the sealing structure, enhance the sealing performance of the connector, and the compression spring can provide continuous pressure, so that the contact can be self-adapted to align with the electrical interface of the device, and the contact and the electrical interface can always maintain good contact. At the same time, the use of the compression spring can effectively absorb external vibration and impact, and enhance the stability of the connector in a dynamic environment.

[0031] The above description is only the description of the preferred embodiment of the utility model, and is not any limitation on the range of the utility model. Any change and modification of the above disclosure by the ordinary skilled in the art is within the protection scope of the claims.

Claims

1. A pre-sealed radio frequency coaxial male connector characterized in that, The utility model relates to a kind of electrical equipment connection device, including: Outer conductor (1);The outer conductor (1) is annular straight cylinder, including shell (101), the connecting flange (102) being arranged to the shell (101) one side, and the threaded interface (103) being arranged to the connecting flange (102) other side, the connecting flange (102) forms sealing cavity (104) towards shell (101) one side, the other side of the sealing cavity (104) is connecting chamber (105); Connecting sleeve (2), the connecting sleeve (2) is connected by screwing on shell (101), it includes connecting port (201), and the connecting port (201) is used to connect with electrical equipment; Sealing block (3), the sealing block (3) includes complete through passage (301), the first sealing groove (302) being arranged to the outer wall of the sealing block (3), and the second sealing groove (303) being arranged to the inner wall of the passage (301); Guide needle (4), the guide needle (4) is columnar structure, inserts in the passage (301) of sealing block (3), and it includes the contact (401) being arranged to one end, and the compression spring (402) being surrounded in the contact (401) exterior.

2. A preassembled sealed radio frequency coaxial male connector as defined in Claim 1, wherein, The sealing block (3) is installed in sealing cavity (104), the first sealing groove (302) is full-wrapping type, and the sealing block (3) is sealed by the first sealing ring (304) being installed in the first sealing groove (302).

3. A preassembled sealed radio frequency coaxial male connector as defined in Claim 2, wherein, The second sealing groove (303) is sealed by the second sealing ring (305) between the second sealing groove (303) and guide needle (4), and the second sealing groove (303) is half-wrapping type, and guide needle (4) can slide in the section of the second sealing groove (303), and the slidable distance is consistent with the elastic range of compression spring (402).

4. A preassembled sealed radio frequency coaxial male connector as defined in Claim 3, wherein, The contact (401) is inserted into connecting port (201) from connecting chamber (105), and the other end of compression spring (402) is fixed in the inner wall of connecting sleeve (2), for improving the electrical connection strength of contact (401) and external electrical equipment.

5. A preassembled sealed radio frequency coaxial male connector as defined in Claim 1, wherein, The connecting flange (102) includes third sealing groove (102a), and a plurality of connecting holes (102b) are arranged to the edge thereof.

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