Radio frequency coaxial connector and circuit board

Abstract

The utility model discloses a radio frequency coaxial connector and a circuit board. The radio frequency coaxial connector can be installed on a circuit board, and comprises an insulating body, and a central conductor and a shell which are arranged on the insulating body, the central conductor comprises a base body part horizontally extending on the insulating body and a contact part extending from the base body part to the direction protruding out of the insulating body; the shell comprises a cylinder part which is annularly arranged at the periphery of the contact part and a pin part which horizontally extends outwards from the root part of the cylinder part; wherein at least one of the base body part and the pin part can be clamped with a circuit board, so that the radio frequency coaxial connector is clamped on the circuit board. The radio frequency coaxial connector can be directly clamped with the circuit board, welding operation is not needed, installation is simple, cost is low, and poor products caused by welding can be avoided.

Description

Technical Field

[0001] This application belongs to the technical field of connectors, and particularly relates to a radio frequency coaxial connector and a circuit board. Background Art

[0002] Currently, the connection between the board end of the existing radio frequency coaxial connector and the circuit board is achieved by soldering with solder paste, welding the central conductor and the outer shell of the board end to the corresponding connection points on the circuit board. The soldering process is relatively complex, costly, time-consuming and laborious. Moreover, the use of the soldering process may also lead to quality abnormalities due to poor soldering. Summary of the Utility Model

[0003] The purpose of this application is to provide a radio frequency coaxial connector and a circuit board to solve the deficiencies of the prior art.

[0004] To achieve the above purpose, this application provides the following technical solutions:

[0005] A radio frequency coaxial connector that can be installed on a circuit board, comprising an insulating body, a central conductor and an outer shell provided on the insulating body; the central conductor includes a base portion horizontally extending on the insulating body, and a contact portion extending from the base portion in a direction protruding from the top surface of the insulating body; the outer shell includes a cylindrical portion surrounding the periphery of the contact portion, and a pin portion horizontally extending outward from the root of the cylindrical portion; wherein, at least one of the base portion and the pin portion can be snap-fitted with the circuit board, so as to snap-fit the radio frequency coaxial connector onto the circuit board.

[0006] In some embodiments, a snap is provided at the end of the base portion and / or the end of the pin portion, and the radio frequency coaxial connector is snap-fitted with the circuit board through the snap.

[0007] In some embodiments, the snap is hook-shaped, and the orientation of the hook surface is opposite to the installation direction of installing the radio frequency coaxial connector onto the circuit board, so as to prevent the radio frequency coaxial connector from falling off through the hook surface.

[0008] In some embodiments, the back surface of the snap is an inclined guiding surface to facilitate snapping the snap into the circuit board.

[0009] In some embodiments, there are two pin portions, and the two pin portions are symmetrically arranged on both sides of the cylindrical portion along the first horizontal direction, and the snap is provided at the end of the pin portion.

[0010] In some embodiments, the base portion is located on one side of the cylindrical portion along the second horizontal direction, and the snap is provided at the end of the base portion; the second horizontal direction is perpendicular to the first horizontal direction.

[0011] In some embodiments, the housing further includes a support portion that horizontally extends on the insulating body from the root of the cylindrical portion, and the support portion is located on the opposite side of the base portion.

[0012] In some embodiments, the base portion is provided with a claw that extends toward the insulating body to grip the insulating body.

[0013] A circuit board for mating with the above radio frequency coaxial connector includes:

[0014] A circuit board base body, on which there is a receiving groove for receiving the radio frequency coaxial connector, and a card slot is provided on the side wall of the receiving groove for clamping with the base portion and / or the pin portion.

[0015] In some embodiments, circuit board connection points are provided in the card slot.

[0016] The advantages of the present application are as follows:

[0017] By setting at least one of the central conductor base portion and the housing pin portion of the radio frequency coaxial connector to be capable of clamping with the circuit board, the radio frequency coaxial connector is clamped on the circuit board without welding, simplifying the installation process, reducing costs, and avoiding product defects caused by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the radio frequency coaxial connector in an embodiment of the present application;

[0020] Figure 2 is an exploded structural diagram of the radio frequency coaxial connector in an embodiment of the present application;

[0021] Figure 3 is a schematic side view structure diagram of the housing in an embodiment of the present application;

[0022] Figure 4 is a schematic structural diagram of the connection between the radio frequency coaxial connector and the circuit board in an embodiment of the present application;

[0023] Figure 5 is a schematic top view structure diagram of the connection between the radio frequency coaxial connector and the circuit board in an embodiment of the present application;

[0024] Figure 6 is Figure 5 a cross-sectional structural diagram of A-A in

[0025] Figure 7 For Figure 5 Schematic cross-sectional structure diagram taken along line B-B in

[0026] Figure 8 Schematic structure diagram of the circuit board in the embodiment of the present application.

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0028] 10. Radio frequency coaxial connector;

[0029] 11. Insulating body; 111. Top end face; 112. Bottom end face

[0030] 12. Central conductor; 121. Substrate part; 1211. Claw; 1212. Anti-slip pattern; 122. Contact part;

[0031] 13. Outer shell; 131. Cylindrical part; 132. Pin part; 133. Support part;

[0032] 14. Buckle; 141. Hook surface; 142. Guide surface;

[0033] 20. Circuit board; 201. Accommodating groove; 202. Card slot. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0035] The embodiment of the present application provides a radio frequency coaxial connector. As Figure 1 and Figure 2 shown, the radio frequency coaxial connector 10 includes an insulating body 11, a central conductor 12, and an outer shell 13. As Figure 4 shown, the radio frequency coaxial connector 10 can be installed on the circuit board 20 and electrically connected to the circuit board 20. The central conductor 12 and the outer shell 13 are both arranged on the insulating body 11, and are insulated from each other through the insulating body 11. Specifically, both the central conductor 12 and the outer shell 13 are metal parts. After the central conductor 12 and the outer shell 13 are separately formed, the insulating body 11 is formed between the two through an injection molding process. As Figure 1 shown, the central conductor 12 and the outer shell 13 are embedded in the insulating body 11.

[0036] As Figure 2As shown, the center conductor 12 includes a base portion 121 and a contact portion 122. The base portion 121 extends horizontally on the insulating body 11. Here, the horizontal extension means extending substantially along a direction parallel to the insulating body 11. As Figure 1 and Figure 2 shown, the insulating body 11 is generally plate-shaped. The contact portion 122 extends from the base portion 121 in a direction protruding from the top end surface of the insulating body 11. As Figure 2 shown, the insulating body 11 includes opposite top end surface 111 and bottom end surface 112. Combining Figure 2 and Figure 4 , when the RF coaxial connector 10 is mounted to the circuit board 20, the bottom end surface 112 of the insulating body 11 is in contact with the circuit board 20. It can be understood that when the placement position of the RF coaxial connector 10 is different, the spatial positions of the top end surface 111 and the bottom end surface 112 also change accordingly. Here, "top" and "bottom" are only for facilitating the description of the relative relationship between the two end surfaces, and should not be construed as a limitation on the structure of the RF coaxial connector 10.

[0037] Combining Figure 1 and Figure 2 , the contact portion 122 of the center conductor 12 protrudes from the top end surface 111 of the insulating body 11, so as to facilitate the mating connector to contact the contact portion 122.

[0038] Continuing to refer to Figure 2 , the outer shell 13 includes a cylindrical portion 131 and a pin portion 132. The cylindrical portion 131 is disposed around the contact portion 122 of the center conductor 12. As Figure 2 shown, the contact portion 122 of the center conductor 12 is generally cylindrical, and the cylindrical portion 131 of the outer shell 13 is coaxially disposed with the contact portion 122. The top of the contact portion 122 is smooth, facilitating the insertion of the mating connector. As Figure 2 shown, the pin portion 132 of the outer shell 13 extends horizontally outward from the root of the cylindrical portion 131. As Figure 2 shown, the pin portion 132 extends horizontally from the root of the cylindrical portion 131 to the outside of the cylindrical portion 131.

[0039] In the embodiment of the present application, referring to Figure 2 , at least one of the base portion 121 of the center conductor 12 and the pin portion 132 of the outer shell 13 can be snap-fitted to the circuit board 20, so as to snap-fit the RF coaxial connector 10 to the circuit board 20.

[0040] In the present application, innovatively, the RF coaxial connector 10 is snap-fitted to the circuit board 20 instead of using traditional soldering. This not only facilitates installation, has a lower cost, but also avoids product defects caused by soldering.

[0041] There are many snap - fit structures and will not be listed one by one here. In the embodiments of the present application, the snap - 14 method is adopted for snap - fitting. As Figure 2 shown, a snap 14 is provided at the end of the base portion 121 and / or the end of the pin portion 132. The radio frequency coaxial connector 10 is snap - fitted to the circuit board 20 through this snap 14. That is to say, the snap 14 can be provided only at the end of the base portion 121 of the center conductor 12, or only at the end of the pin portion 132 of the outer shell 13, or snaps 14 are provided at both the end of the base portion 121 and the end of the pin portion 132. In the embodiments of the present application, as Figure 2 shown, in order to improve the snap - fit strength, snaps 14 are provided at both the end of the base portion 121 and the end of the pin portion 132. Considering that there is generally only one base portion 121 of the center conductor 12, if the snap 14 is provided only on the base portion 121, there is a risk of unstable snapping. However, as Figure 2 shown, generally multiple pin portions 132 can be provided on the outer shell 13. Therefore, it is preferred to provide the snap 14 on the pin portion 132, or to provide snaps 14 on both the pin portion 132 and the base portion 121, rather than only providing the snap 14 on the base portion 121 alone.

[0042] In one embodiment, as Figure 2 shown, there are two pin portions 132 of the outer shell 13, and the two pin portions 132 are symmetrically arranged on both sides of the cylindrical portion 131 along the first horizontal direction, and the first horizontal direction is Figure 2 the X - direction shown. As Figure 2 shown, a snap 14 is provided at the end of the pin portion 132.

[0043] In one embodiment, continue to refer to Figure 2 , the base portion 121 is located on one side of the cylindrical portion 131 along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction, and the second horizontal direction is Figure 2 the Y - direction shown. In the embodiments of the present application, the definition of the direction is for the posture shown in the drawings. In other postures, the definition of the direction changes with the change of the posture and will not be limited here. Continue to refer to Figure 2 , a snap 14 is provided at the end of the base portion 121.

[0044] In the embodiments of the present application, the two pin portions 132 and one base portion 121 are arranged on different three sides, which can not only avoid mutual interference among them, but also form a stable snap - fit structure to firmly snap - fit the radio frequency coaxial connector 10 on the circuit board 20.

[0045] In one embodiment, as Figure 2 shown, the outer shell 13 further includes a support portion 133. The support portion 133 extends horizontally outward from the root of the cylindrical portion 131, and the support portion 133 is located on the opposite side of the base portion 121. AsFigure 2 As shown, that is, the base part 121, the support part 133, and the two pin parts 132 are respectively distributed on the front, back, left, and right sides of the cylindrical part 131. The base part 121 and the support part 133 are respectively located on the left and right sides of the cylindrical part 131, and the two pin parts 132 are respectively located on the front and back sides of the cylindrical part 131. This can avoid interference. The support part 133 can not only be used to support the RF coaxial connector 10, but also be used to connect the outer shell 13 to the tape when the RF coaxial connector 10 is used, facilitating the fixation of the outer shell 13 during molding.

[0046] As described above, when the RF coaxial connector 10 is molded, the outer shell 13 and the center conductor 12 need to be integrally formed by injection molding to form the RF coaxial connector 10. During injection molding, the outer shell 13 needs to be fixed through a tape, and the center conductor 12 also needs to be fixed through another tape, so as to relatively fix the outer shell 13 and the center conductor 12, and then injection molding is carried out. After injection molding, the tape can be cut off. The support part 133 of the outer shell 13 serves as a connecting part for connecting the outer shell 13 to the tape.

[0047] Similarly, the base part 121 of the center conductor 12 also serves as a connecting part for connecting the center conductor 12 to the tape. Therefore, as Figure 2 shown, only a part of the end of the base part 121 is provided with the buckle 14, and the other part is used to connect the tape.

[0048] As Figure 3 shown, the buckle 14 is hook-shaped, and the orientation of the hook surface 141 is opposite to the installation direction of installing the RF coaxial connector 10 onto the circuit board 20, that is, the orientation of the hook surface 141 is Figure 3 shown as upward in the figure, which can prevent the RF coaxial connector 10 from falling off. As Figure 6 and Figure 7 shown, when the hook surface 141 is arranged upward and the buckle 14 is snapped into the circuit board 20, the hook-shaped buckle 14 hooks into the slot 202, which can prevent the RF coaxial connector 10 from falling off.

[0049] Continuing to refer to Figure 3 , in an embodiment, the back surface of the buckle 14 is an inclined guiding surface 142 to facilitate snapping the buckle 14 into the circuit board 20. The RF coaxial connector 10 is smoothly snapped into the circuit board 20 through the guiding surface 142, and the RF coaxial connector 10 is prevented from falling off the circuit board 20 through the hook surface 141.

[0050] Figure 3 The structure of the buckle 14 is illustrated by taking the outer shell 13 as an example in the figure. Similarly, the buckle 14 on the center conductor 12 can also be set to a similar structure, can also be set to a hook shape, and can also include an upward hook surface 141 and an inclined guiding surface 142, which will not be repeated here.

[0051] In one embodiment, as Figure 2 shown, on the base portion 121 of the center conductor 12, there are provided claws 1211, and the claws 1211 extend towards the insulating body 11 to tightly hold the insulating body 11. After the claws 1211 are provided, during injection molding, the claws 1211 can be embedded into the insulating body 11, so that the center conductor 12 is more firmly fixed on the insulating body 11. As Figure 2 shown, the claws 1211 can be provided on both sides of the base portion 121.

[0052] Furthermore, as Figure 2 shown, anti-slip grooves 1212 can also be provided on the base portion 121 of the center conductor 12. The anti-slip grooves 1212 can increase the friction between the center conductor 12 and the insulating body 11, and prevent the center conductor 12 from slipping on the insulating body 11.

[0053] The embodiment of the present application also provides a circuit board. As Figure 4 shown, the circuit board 20 is used to cooperate with the above-mentioned radio frequency coaxial connector 10. As Figure 8 shown, on the circuit board 20, there is provided a receiving groove 201 for receiving the radio frequency coaxial connector 10, and the receiving groove 201 is formed by recessing downward from the top end surface of the circuit board 20. As Figure 8 shown, on the side wall of the receiving groove 201, there is provided a clamping groove 202, and the clamping groove 202 is used for clamping with the base portion 121 and / or the pin portion 132.

[0054] Specifically, as described above, a buckle 14 can be provided at the end of the base portion 121 and / or the end of the pin portion 132. Refer to Figure 6 and Figure 7 , and the buckle 14 can be snapped into the clamping groove 202 of the circuit board 20. As described above, the buckle 14 can include a guiding surface 142 and a hook surface 141, so that the buckle 14 can not only be smoothly snapped into the clamping groove 202, but also be stably fixed in the clamping groove 202 to prevent falling off. The specific details have been described in detail above and will not be repeated here.

[0055] In the embodiment of the present application, electrical connection points are provided in the clamping groove 202 of the circuit board 20. The electrical connection points can be copper foils, or other materials that can be electrically connected to the circuit on the circuit board 20. When the buckle 14 at the end of the base portion 121 and / or the end of the pin portion 132 is snapped into the clamping groove 202, the buckle 14 can contact the electrical connection points in the clamping groove 202, thereby electrically connecting the center conductor 12 and / or the outer shell 13 to the circuit board 20. The outer shell 13 is connected to the circuit board 20 as a grounding member. The copper foil can be provided only in a part of the area in the clamping groove 202, or the copper foil can be provided in the entire clamping groove 202, and no limitation is made here.

[0056] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the meanings of the above terms in the present application can be understood according to specific circumstances.

[0057] In the description of this embodiment, the orientation or positional relationship such as "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. The terms "first" and "second" are only used for distinction in description and have no special meaning.

[0058] The above-described embodiments merely represent the implementation manners of the present application, and the description thereof is relatively specific and detailed, but should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A radio frequency coaxial connector that can be mounted on a circuit board, characterized in that, It includes an insulating body, a center conductor and a housing provided on the insulating body; the center conductor includes a base portion horizontally extending on the insulating body and a contact portion extending from the base portion in a direction protruding from the top surface of the insulating body; the housing includes a cylindrical portion surrounding the periphery of the contact portion and a pin portion horizontally extending outward from the root of the cylindrical portion; wherein at least one of the base portion and the pin portion can be snap-connected to the circuit board, so as to snap-connect the radio frequency coaxial connector to the circuit board.

2. The RF coaxial connector according to claim 1, characterized in that, A snap is provided at the end of the base portion and / or the end of the pin portion, and the radio frequency coaxial connector is snap-connected to the circuit board through the snap.

3. The RF coaxial connector according to claim 2, wherein, The snap is hook-shaped, and the orientation of the hook surface is opposite to the installation direction of installing the radio frequency coaxial connector to the circuit board, so as to prevent the radio frequency coaxial connector from falling off.

4. The RF coaxial connector according to claim 2, characterized in that, The back surface of the snap is an inclined guiding surface to facilitate snapping the snap into the circuit board.

5. The RF coaxial connector according to claim 2, wherein There are two pin portions, and the two pin portions are symmetrically arranged on both sides of the cylindrical portion along the first horizontal direction, and the snap is provided at the end of the pin portion.

6. The RF coaxial connector according to claim 5, characterized in that, The base portion is located on one side of the cylindrical portion along the second horizontal direction, and the snap is provided at the end of the base portion; the second horizontal direction is perpendicular to the first horizontal direction.

7. The RF coaxial connector according to claim 6, characterized in that, The housing further includes a support portion, the support portion horizontally extends outward from the root of the cylindrical portion, and the support portion is located on the opposite side of the base portion.

8. The radio frequency coaxial connector according to any one of claims 1 to 7, characterized in that Claws are provided on the base portion, and the claws extend towards the insulating body to grip the insulating body.

9. A circuit board for cooperating with the radio frequency coaxial connector according to any one of claims 1 to 8, characterized in that, A receiving groove for receiving the radio frequency coaxial connector is provided on the circuit board, and a card slot is provided on the side wall of the receiving groove, and the card slot is used for snap-connecting with the base portion and / or the pin portion.

10. The circuit board according to claim 9, characterized in that, A circuit board electrical connection point is provided in the card slot.

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