A waterproof board-end connector box antenna and a manufacturing method thereof

Abstract

The present invention provides a waterproof board-end connector box antenna and a manufacturing method thereof, which relates to the technical field of waterproof box antennas and comprises: two shells, the two shells are sealed and connected, and a containing space is formed inside the two shells, a printed circuit board is arranged in the containing space, an antenna module is arranged on the printed circuit board, and a cylindrical shell is integrally injection-molded on the outer side of one of the shells; an electrical connection component, the electrical connection component comprises a cylindrical outer conductor and an insulator and a center conductor arranged in sequence inside the outer conductor, the electrical connection component is arranged in the cylindrical shell to form a board-end connector, and the outer conductor and the center conductor are connected to the printed circuit board; the problem of high process difficulty and manufacturing cost and poor sealing reliability caused by the waterproof board-end connector box antenna in the prior art adopting an integral board-end connector for sealing connection on the box is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of waterproof box antennas, and more specifically, relates to a waterproof board-end connector type box antenna and a manufacturing method thereof. Background Art

[0002] Currently, most of the existing waterproof board-end connector box antennas use an integral board-end connector type. The board-end connector and the box are sealed and waterproofed by gluing, or the board-end connector is equipped with an O-ring, and the sealing and waterproofing function is achieved by the interference fit of the upper and lower covers and the O-ring. These methods are limited by the selection of glue and relatively complex process requirements, and on the other hand, they are also limited by different O-ring materials and different interference fit designs. At the same time, the costs of the above two existing technologies will also be high, and they can no longer meet the fiercely competitive market environment. Summary of the invention

[0003] The purpose of the present invention is to provide a waterproof board-end connector box antenna and a method for manufacturing the same in view of the deficiencies in the prior art, so as to solve the problems in the prior art of the waterproof board-end connector box antenna using an integral board-end connector for sealing connection on the box, resulting in high process difficulty and production cost and poor sealing reliability.

[0004] In order to achieve the above object, the present invention provides a waterproof board-end connector box antenna, comprising:

[0005] Two shells, the two shells are sealed and connected, and a receiving space is formed inside the two shells, a printed circuit board is arranged in the receiving space, and an antenna module is arranged on the printed circuit board, and a cylindrical shell is integrally injection-molded on the outer side of one of the shells;

[0006] An electrical connection component includes a cylindrical outer conductor and an insulator and a center conductor sequentially arranged inside the outer conductor. The electrical connection component is arranged in the cylindrical shell to form a board-end connector. The outer conductor and the center conductor are connected to the printed circuit board.

[0007] Optionally, a grounding plate is further included, a first end of the grounding plate is connected to the outer conductor, a second end of the grounding plate is connected to the printed circuit board, and part of the grounding plate is embedded in the shell where the cylindrical shell is located.

[0008] Optionally, a first mounting portion is provided on the outer side of at least one shell, and the first mounting portion is used to fix the waterproof board-end connector box antenna.

[0009] Optionally, the two shells are both box-shaped structures with one side open, and the two shells are welded.

[0010] Optionally, a second mounting portion is provided in the housing where the cylindrical shell is located, and the printed circuit board is mounted on the second mounting portion.

[0011] Optionally, a bending portion is provided at one end of the central conductor located inside the shell.

[0012] Optionally, the grounding plate includes a plate-like portion and a first connecting portion and a second connecting portion which are integrally formed on the plate-like portion and bent toward one side of the plate-like portion, the first connecting portion being the first end and being riveted to the electrical connection component, and the second connecting portion being the second end and being welded to the printed circuit board.

[0013] Optionally, the shell is made of plastic.

[0014] The present invention also provides a method for manufacturing a waterproof board-end connector box antenna, which is used to manufacture the above-mentioned waterproof board-end connector box antenna, comprising:

[0015] Obtaining an integrated electrical connection assembly;

[0016] Connect a grounding strap to one end of the electrical connection assembly;

[0017] A shell with a cylindrical shell is formed by injection molding, and an electrical connection component connected with a grounding plate is injection molded in the cylindrical shell;

[0018] forming another housing by injection molding;

[0019] Install the printed circuit board and then seal and connect the two shells.

[0020] Optionally, installing the printed circuit board and then sealingly connecting the two housings comprises:

[0021] Installing the printed circuit board in the housing where the cylindrical housing is located;

[0022] Connect the grounding strap and center conductor to the printed circuit board;

[0023] The two shells are welded ultrasonically.

[0024] The present invention provides a waterproof board-end connector box antenna and a manufacturing method thereof, which has the beneficial effect that the waterproof board-end connector box antenna does not adopt an integral board-end connector to be installed on a shell, but adopts an electrical connection component to be injection-molded in a cylindrical shell to form a board-end connector, and the cylindrical shell is integrally injection-molded and connected to one of the shells, which naturally has a reliable waterproof effect, and does not require gluing or setting a sealing ring, which can reduce the process difficulty and manufacturing cost.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0027] Figure 1 A schematic diagram of the exploded structure of a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0028] Figure 2 A schematic diagram of an electrical connection assembly of a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0029] Figure 3 A schematic diagram showing the connection between an electrical connection component and a grounding plate of a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0030] Figure 4 A cross-sectional schematic diagram of the connection between an electrical connection component and a grounding plate of a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0031] Figure 5 A schematic structural diagram of a lower shell of a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0032] Figure 6 A flow chart of a method for manufacturing a waterproof board-end connector box antenna according to an embodiment of the present invention is shown.

[0033] Description of reference numerals:

[0034] 1. Lower shell; 2. Upper shell; 3. Printed circuit board; 4. Cylindrical shell; 5. Electrical connection assembly; 6. Outer conductor; 7. Insulator; 8. Center conductor; 9. Grounding plate; 10. First connecting portion; 11. Second connecting portion; 12. First mounting portion; 13. Second mounting portion; 14. Bending portion; 15. Flat plate portion; 16. Riveted section. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0036] like Figures 1 to 5As shown, the present invention provides a waterproof board-end connector box antenna, comprising:

[0037] Two shells are sealed and connected to form a receiving space inside the two shells. A printed circuit board 3 is arranged in the receiving space. An antenna module is arranged on the printed circuit board 3. A cylindrical shell 4 is integrally injection-molded on the outer side of one of the shells.

[0038] The electrical connection component 5 includes a cylindrical outer conductor 6 and an insulator 7 and a center conductor 8 sequentially arranged inside the outer conductor 6. The electrical connection component 5 is arranged in the cylindrical shell 4 to form a board-end connector. The outer conductor 6 and the center conductor 8 are connected to the printed circuit board 3.

[0039] Specifically, in order to solve the problems in the prior art that the waterproof board-end connector box antenna uses an integral board-end connector to seal the box, which leads to high process difficulty and production cost and poor sealing reliability; the waterproof board-end connector box antenna provided by the present invention does not use an integral board-end connector for installation on the shell, but uses an electrical connection component 5 to be injection molded in a cylindrical shell 4 to form a board-end connector. The cylindrical shell 4 is integrally injection-molded and connected to one of the shells, which naturally has a reliable waterproof effect, and does not require gluing or setting a sealing ring, which can reduce process difficulty and production cost.

[0040] Optionally, a grounding plate 9 is further included, a first end of the grounding plate 9 is connected to the outer conductor 6, a second end of the grounding plate 9 is connected to the printed circuit board 3, and part of the grounding plate 9 is embedded in the shell where the cylindrical shell 4 is located.

[0041] Specifically, the grounding plate 9 can be injection molded in the housing where the cylindrical shell 4 is located, and its first end and second end are exposed and respectively connected to the outer conductor 6 and the printed circuit board 3, thereby reducing the difficulty of manufacturing and assembly.

[0042] Optionally, a first mounting portion 12 is provided on the outer side of at least one shell, and the first mounting portion 12 is used to fix the waterproof board-end connector box antenna.

[0043] Specifically, the first mounting portion 12 may be a connecting ear integrally formed on the housing, and a first mounting hole is provided on the connecting ear for mounting the waterproof board-end connector box antenna.

[0044] In this embodiment, the two shells are a lower shell 1 and an upper shell 2 , the cylindrical shell 4 is arranged in the lower shell 1 , and the printed circuit board 3 is also installed in the lower shell 1 .

[0045] Optionally, both shells are box-shaped structures with one side open, and the two shells are welded.

[0046] Specifically, the two box-shaped shells are buckled together and sealed by welding, which simplifies assembly and improves waterproof effect.

[0047] Optionally, a second mounting portion 13 is provided in the housing where the cylindrical shell 4 is located, and the printed circuit board 3 is mounted on the second mounting portion 13 .

[0048] Specifically, the second mounting portion 13 may be a mounting column integrally formed inside the housing, and a second mounting hole is provided inside the mounting column to facilitate supporting and mounting the printed circuit board 3 .

[0049] In this embodiment, the printed circuit board 3 is a PCBA.

[0050] Optionally, a bent portion 14 is provided at one end of the central conductor 8 inside the housing.

[0051] Specifically, Figure 2 As shown, the electrical connection assembly 5 is an integrated component and can be directly purchased from outside. Its outer conductor 6, insulator 7 and center conductor 8 form an integral connection, and the outer conductor 6 has a waterproof function; the bending portion 14 on the center conductor 8 is bent toward the printed circuit board 3 to facilitate connection with the printed circuit board 3.

[0052] In this embodiment, the first end and the second end of the grounding sheet 9 are respectively welded to the grounding connection portion and the signal connection portion of the printed circuit board 3 .

[0053] Optionally, the grounding plate 9 includes a plate-like portion and a first connecting portion 10 and a second connecting portion 11 that are integrally formed on the plate-like portion and bent toward one side of the plate-like portion, the first connecting portion 10 being the first end and being riveted to the electrical connection component 5, and the second connecting portion 11 being the second end and being welded to the printed circuit board 3.

[0054] Specifically, Figure 3 and Figure 4 As shown, the grounding plate 9 can be processed by a plate bending process, wherein the first connection portion 10 and the second connection portion 11 are bent upward, a riveting hole is opened on the first connection portion 10, and the first connection portion 10 is riveted and connected to the riveting section 16 of the electrical connection component 5 through the riveting hole, and the riveting section 16 is conductively connected to the outer conductor 6, and the outer end of the second connection portion 11 can be inserted into the printed circuit board 3 and connected thereto, and the flat plate portion 15 is embedded in the injection molding material of the shell.

[0055] Optionally, the housing is made of plastic.

[0056] Specifically, the housing can be manufactured by using an injection molding process.

[0057] In this embodiment, if Figure 5As shown, the electrical connection assembly 5 connected with the grounding plate 9 is integrally injection molded in the lower shell 1 during the injection molding of the shell, so that at least part of the grounding plate 9 is inside the injection molding material of the shell, and the second connection part 11 is exposed to connect with the printed circuit board 3.

[0058] like Figure 6 As shown, the present invention also provides a method for manufacturing a waterproof board-end connector box antenna, which is used to manufacture the above-mentioned waterproof board-end connector box antenna, comprising:

[0059] Obtaining an integrated electrical connection assembly 5;

[0060] Connect the grounding plate 9 to one end of the electrical connection assembly 5;

[0061] A housing with a cylindrical housing 4 is formed by injection molding, and an electrical connection component 5 connected with a grounding plate 9 is injection molded in the cylindrical housing 4;

[0062] forming another housing by injection molding;

[0063] The printed circuit board 3 is installed and the two housings are sealed and connected.

[0064] Specifically, the integral electrical connection component 5 can be directly purchased from outside, or can also be processed by itself. The grounding plate 9 can be connected to one end of the electrical connection component 5 by riveting, and it is electrically conductive with the outer conductor 6. When the shell is injection molded, the electrical connection component 5 connected with the grounding plate 9 is placed, and the electrical connection component 5 connected with the grounding plate 9 is injection molded in the shell, so that the electrical connection section is in the cylindrical shell 4, forming a board-end connector, and at least part of the grounding plate 9 is in the injection molding material of the shell, and the second end is exposed to connect with the printed circuit board 3. After the printed circuit board 3 is installed, the other injection molded shell is sealed and connected to the shell to form the above-mentioned waterproof board-end connector box antenna. The entire production process does not use glue or a sealing ring to ensure the sealed connection between the board-end connector and the shell, but uses the electrical connection component 5 to be injection molded in the cylindrical shell 4 to form a board-end connector. The cylindrical shell 4 is integrally injection molded and connected with one of the shells, which not only has a reliable waterproof effect, but also can reduce the process difficulty and production cost.

[0065] Optionally, installing the printed circuit board 3 and then sealingly connecting the two housings includes:

[0066] The printed circuit board 3 is installed in the housing where the cylindrical housing 4 is located;

[0067] Connect the grounding plate 9 and the center conductor 8 to the printed circuit board 3;

[0068] The two shells are welded ultrasonically.

[0069] In summary, when the manufacturing method of the waterproof board-end connector box antenna provided by the present invention is used, an integrated electrical connection component 5 and a grounding plate 9 are riveted to form a semi-finished product of the board-end connector, and the semi-finished product is then injection molded by an insert mold. After injection molding and encapsulation, a shell with a board-end connector is formed, and the PCBA is screwed to the shell with the board-end connector, and the first end and the second end of the grounding plate 9 are connected to the PCBA. Another injection-molded shell is then sealed and connected by ultrasonic welding, so that the waterproof function of the waterproof board-end connector box antenna itself can be realized.

[0070] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A waterproof board-end connector box antenna, characterized in that: include: Two shells, the two shells are sealed and connected, and a receiving space is formed inside the two shells, a printed circuit board is arranged in the receiving space, and an antenna module is arranged on the printed circuit board, and a cylindrical shell is integrally injection-molded on the outer side of one of the shells; An electrical connection component includes a cylindrical outer conductor and an insulator and a center conductor sequentially arranged inside the outer conductor. The electrical connection component is injection molded in the cylindrical shell to form a board-end connector. The outer conductor and the center conductor are connected to the printed circuit board.

2. The waterproof board-end connector box antenna according to claim 1, characterized in that: It also includes a grounding plate, a first end of which is connected to the outer conductor, a second end of which is connected to the printed circuit board, and a part of the grounding plate is embedded in the shell where the cylindrical shell is located.

3. The waterproof board-end connector box antenna according to claim 1, characterized in that: A first mounting portion is disposed on the outer side of at least one shell, and the first mounting portion is used to fix the waterproof board-end connector box antenna.

4. The waterproof board-end connector box antenna according to claim 1, characterized in that: The two shells are both box-shaped structures with one side open, and the two shells are welded.

5. The waterproof board-end connector box antenna according to claim 1, characterized in that: A second mounting portion is provided in the housing where the cylindrical shell is located, and the printed circuit board is mounted on the second mounting portion.

6. The waterproof board-end connector box antenna according to claim 1, characterized in that: A bent portion is provided at one end of the central conductor located inside the housing.

7. The waterproof board-end connector box antenna according to claim 2, characterized in that: The grounding plate includes a plate-like portion and a first connecting portion and a second connecting portion that are integrally formed on the plate-like portion and bent toward one side of the plate-like portion. The first connecting portion is the first end and is riveted to the electrical connection component, and the second connecting portion is the second end and is welded to the printed circuit board.

8. The waterproof board-end connector box antenna according to claim 1, characterized in that: The shell is made of plastic.

9. A method for manufacturing a waterproof board-end connector box antenna, used for manufacturing the waterproof board-end connector box antenna according to any one of claims 1 to 8, characterized in that: include: Obtaining an integrated electrical connection assembly; Connect the grounding strap to one end of the electrical connection assembly; A shell with a cylindrical shell is formed by injection molding, and an electrical connection component connected with a grounding plate is injection molded in the cylindrical shell; forming another housing by injection molding; Install the printed circuit board and then seal and connect the two shells.

10. The method for manufacturing a waterproof board-end connector box antenna according to claim 9, characterized in that: Installing the printed circuit board and then sealing the two shells includes: Installing the printed circuit board in the housing where the cylindrical housing is located; Connect the grounding strap and center conductor to the printed circuit board; The two shells are welded ultrasonically.

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