Metal and plastic composite circuit board shell structure with antenna

Abstract

The utility model discloses a metal and plastic composite shell structure with an antenna circuit board. The metal and plastic composite shell structure comprises an upper shell structure, a lower shell structure and a plastic antenna bin cover structure, the upper shell structure and the lower shell structure are connected through connecting structures arranged at four corners; the plastic antenna bin cover structure and the upper shell structure are connected through connecting structures arranged on the two sides. The shell structure adopts a split structure of an upper shell structure, a lower shell structure and a plastic antenna bin cover structure, the upper shell structure, the lower shell structure and the plastic antenna bin cover structure are connected through a connecting structure and are sealed through a sealing piece, the shell structure can be disassembled, an internal antenna and a circuit board can be conveniently maintained and cleaned, and a strip-shaped groove and a decorative bulge of the upper shell structure effectively increase the heat dissipation area; and the plastic antenna bin cover avoids the shielding influence of the metal shell on the antenna in the signal receiving and releasing process of the antenna, so that the shell has the advantages of reliability and signal stability, and also has the advantages of convenience in carrying and high integration degree.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a metal-plastic composite circuit board shell structure with an antenna. Background Art

[0002] With the rise of smart wearable devices, people generally wear a variety of smart devices to obtain the required external information during activities such as mountaineering, skiing, paragliding, etc. These devices include but are not limited to smart glasses, smart communication headsets, control terminal pads, radio stations, and smart batteries. In order to facilitate the unified management of these smart devices, a device information processing controller is needed to connect these devices together through networking, similar to a wireless router in a home.

[0003] Existing controllers have a fully plastic internal antenna shell structure, which ensures signal stability. However, during the above-mentioned activities, the controller is often exposed to environments with large temperature differences and high humidity, and the plastic shell is easily aged and deformed, making it unusable. The fully metal internal antenna shell structure will greatly reduce the signal strength due to the electromagnetic shielding characteristics of metal, and even cause signal loss in some devices.

[0004] In order to take into account both reliability and signal stability, some controller shell structures simply use a metal shell with a plastic external antenna module. On the one hand, this makes it inconvenient to carry because the shell and antenna need to be carried separately. Once the external antenna is lost, it cannot be used. On the other hand, the antenna needs to be exposed at all times during wearing, and it is easy to cause damage to the antenna during collision and friction. Utility Model Content

[0005] The purpose of the utility model is to provide a metal-plastic composite circuit board shell structure with an antenna, so as to solve the problems that the existing device information processing controller cannot guarantee reliability when using a plastic internal antenna shell, cannot guarantee signal stability when using a metal internal antenna shell, and the use of a metal shell with a plastic external antenna module will cause trouble in carrying and increase the antenna damage rate.

[0006] The technical solution adopted by the utility model is as follows: a metal-plastic composite housing structure of a circuit board with an antenna, comprising an upper housing structure, a lower housing structure and a plastic antenna compartment cover structure;

[0007] The upper shell structure includes an upper shell, an integrally formed connection groove is provided at the bottom of the upper shell, evenly distributed strip grooves are provided on both sides of the top of the upper shell, sink holes are provided at the four corners of the upper shell, and two connector socket openings are provided on the side of the upper shell; an antenna compartment is provided at the top of the upper shell, and the antenna compartment is provided with a wiring through hole, countersunk through holes are provided at the upper ends of both sides of the upper shell, and hexagonal grooves are provided on both sides of the interior of the upper shell;

[0008] The lower shell structure is located at the lower end of the upper shell structure, and the lower shell structure includes a lower shell, the top of the lower shell is provided with an integrally formed connecting lip, the outer side of the lower shell is provided with evenly distributed strip grooves, the four corners of the lower shell are provided with threaded hole columns, the side of the lower shell is provided with five connector socket openings, and the lower shell is provided with a hexagonal groove inside;

[0009] The plastic antenna compartment cover structure comprises a compartment cover body, the upper end of which is provided with evenly distributed strip grooves and protrusions, so that the compartment cover body and the upper shell body maintain the appearance consistency; threaded holes are provided on both sides of the compartment cover body;

[0010] The upper shell structure and the lower shell structure are connected via connecting structures arranged at four corners;

[0011] The plastic antenna compartment cover structure is connected to the upper shell structure via connecting structures arranged on both sides;

[0012] A sealing member is provided between the upper shell structure and the lower shell structure, and between the upper shell structure and the plastic antenna compartment cover structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the shell structure adopts a split structure of an upper shell structure, a lower shell structure and a plastic antenna compartment cover structure, and is connected by a connecting structure and sealed by a sealing member, and can be disassembled to facilitate maintenance and cleaning of the internal antenna and circuit board. The strip grooves and decorative protrusions of the upper shell structure effectively increase the heat dissipation area and improve the heat dissipation speed. The plastic antenna compartment cover avoids the shielding effect of the metal shell on the antenna during the process of retracting and releasing signals, thereby achieving the advantages of reliability and signal stability as well as easy carrying and high degree of integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a metal-plastic composite circuit board housing with an antenna.

[0015] Figure 2 It is a schematic diagram of the upper shell structure.

[0016] Figure 3 It is a schematic diagram of the lower shell structure.

[0017] Figure 4 This is a schematic diagram of the plastic antenna compartment cover structure.

[0018] Explanation of the reference numerals in the accompanying drawings: upper shell structure 1, lower shell structure 2, plastic antenna compartment cover structure 3, flat head screw 4, countersunk screw 5, hexagonal nut 6, seal 7, upper shell 101, first strip groove 102, first connector socket opening 103, connecting groove 104, countersunk screw through hole 105, sunken screw hole 106, antenna compartment 107, circular through hole 108, slot-shaped through hole 109, lower shell 201, connecting lip 202, second connector socket opening 203, threaded hole column 204, universal Type C socket opening 205, compartment cover body 301, connecting threaded hole 302, second strip groove 303. DETAILED DESCRIPTION

[0019] A metal-plastic composite housing structure of a circuit board with an antenna, comprising an upper housing structure 1, a lower housing structure 2 and a plastic antenna compartment cover structure 3;

[0020] The upper shell structure 1 includes an upper shell 101, an integrally formed connection groove 104 is provided at the bottom of the upper shell 101, evenly distributed first strip grooves 102 are provided on both sides of the top of the upper shell, sink holes are provided at the four corners of the upper shell, and two first connector socket openings 103 are provided on the side of the upper shell. An antenna compartment 107 is provided on the top of the upper shell, and the antenna compartment 107 is provided with a wiring through hole, countersunk through holes are provided at the upper ends of both sides of the upper shell, and hexagonal grooves are provided on both sides of the interior of the upper shell.

[0021] The lower shell structure 2 is located at the lower end of the upper shell structure 1, and the lower shell structure 2 includes a lower shell 201. An integrally formed connecting lip 202 is provided on the top of the lower shell, and evenly distributed strip grooves are provided on the outer side of the lower shell. Threaded hole columns 204 are provided at the four corners of the lower shell, and five second connector socket openings 203 are provided on the side of the lower shell. A hexagonal groove is provided inside the lower shell.

[0022] The plastic antenna compartment cover structure 3 comprises a compartment cover body 301, and the upper end of the compartment cover body is provided with evenly distributed second strip grooves 303 and protrusions, so that the compartment cover body 301 and the upper shell 101 maintain the appearance consistency. The compartment cover body 301 is provided with threaded holes on both sides.

[0023] The upper shell structure and the lower shell structure are connected via connecting structures arranged at four corners;

[0024] The plastic antenna compartment cover structure is connected to the upper shell structure via connecting structures arranged on both sides;

[0025] A sealing member is provided between the upper shell structure and the lower shell structure, and between the upper shell structure and the plastic antenna compartment cover structure.

[0026] Preferably, the top of the upper shell has a decorative protrusion for identifying the front and back sides of the overall shell structure, while also increasing the surface heat dissipation area and improving heat dissipation efficiency. At the same time, the decorative protrusion of the upper shell is connected to the protrusion on the top of the compartment cover body, maintaining the overall consistency of the appearance and ensuring the consistency of the feel during holding.

[0027] Preferably, the threaded hole column inside the lower shell is divided into two sections, the diameter of the first section of the column is larger than the diameter of the second section of the column, and the cross-section of the first section of the column is mainly used to provide a circuit board mounting platform to prevent the circuit board from directly contacting the bottom of the lower shell and causing a short circuit.

[0028] Preferably, both sides of the upper shell and the lower shell are provided with connector socket openings, the opening positions correspond to each other, and the openings of the upper shell and the lower shell are of the same shape and size, each occupying half, laying the foundation for the installation of the connector socket. The two openings of the upper shell correspond to the two openings of the lower shell to form two connector openings on the side of the whole, and the lower shell is provided with 3 connector openings, mainly because the PCB is located in the lower shell, and the connector socket can be directly welded on the board for easy connection.

[0029] Preferably, hexagonal grooves are provided inside the upper shell and the lower shell at the screw through holes around the opening of the connector socket to facilitate the installation of the hexagonal nuts and lay the foundation for the matching installation of the connector socket.

[0030] Preferably, a connecting groove is provided at the bottom end of the upper shell, which is matched with the connecting lip provided at the top end of the lower shell, so as to ensure the matching installation of the connecting groove and the connecting lip, and lay the foundation for the connection and installation of the lower shell and the upper shell.

[0031] Preferably, a platform protrusion is provided on the side of the antenna compartment of the upper shell body for supporting the compartment cover body to ensure that the upper edge of the compartment cover is flush with the upper edge of the upper shell body, thereby ensuring the consistency of the structural appearance.

[0032] Preferably, the connection structure includes a first connection screw and a second connection screw. The first connection screw passes through the countersunk hole of the upper shell and is screwed into the threaded hole of the lower shell that matches it, so as to realize the installation of the connection structure. Meanwhile, the second connection screw passes through the countersunk through holes at the upper ends of both sides of the upper shell and is screwed into the threaded holes on both sides of the compartment cover body that match it, so as to realize the installation of the connection structure between the upper shell structure and the plastic antenna compartment cover structure, thus laying a foundation for the matching installation and connection installation of the shell structure. Specifically, the first connection screw and the second connection screw are respectively a flat head screw and a countersunk screw.

[0033] Preferably, the upper shell and the lower shell are both provided with mounting holes corresponding to the first connecting screw, and the first connecting screw is adapted to the mounting holes on the upper shell and the lower shell, and the upper shell and the bin cover body are both provided with mounting holes corresponding to the second connecting screw, and the second connecting screw is adapted to the mounting holes on the upper shell and the bin cover body, laying the foundation for the adaptation of the connecting structure.

[0034] Preferably, the seal is a sealant, and the seal is filled between the connecting groove and the connecting lip, and the seal is filled between the platform protrusion and the bottom edge of the compartment cover body, to ensure the installation of the seal and to ensure the sealing between the upper shell structure and the lower shell structure in the outer shell structure, and between the upper shell structure and the plastic antenna compartment cover.

[0035] The utility model is described in further detail below in conjunction with the accompanying drawings.

[0036] Example

[0037] See also Figure 1-Figure 4 As shown, the utility model provides a metal-plastic composite shell structure of a circuit board with an antenna, comprising an upper shell structure 1, a lower shell structure 2 and a plastic antenna compartment cover structure 3. Specifically, the upper shell structure 1 comprises an upper shell 101, a strip groove 102 is distributed on the outer side of the upper shell 101, connector socket openings 103 are distributed on both sides of the upper shell 101, a connecting groove 104 is arranged at the bottom of the upper shell 101, countersunk screw through holes 105 are distributed on both sides of the upper shell 101, sinking screw holes 106 are distributed at the four corners of the top of the upper shell 101, and an antenna compartment 107 is arranged on one side of the upper shell 101; the lower shell structure 2 is located at the lower end of the upper shell structure 1, specifically, the lower shell structure 2 comprises a lower shell 201, a connecting lip 202 is arranged at the top of the lower shell 201, a connector socket opening 203 is arranged on the side of the lower shell 201, threaded hole columns 204 are arranged at the four corners of the lower shell 201, and a universal T ypeC socket opening 205; the plastic antenna compartment cover structure 3 is located at the top of the antenna compartment 107, and the plastic antenna compartment cover structure 3 includes a compartment cover body 301. Specifically, a connecting threaded hole 302 is provided on the side of the compartment cover body 301, and a strip groove 303 is provided on the top. The strip groove 303 is conformal with the strip groove 102 under structural adaptation, thereby ensuring the consistency of the overall structure; further, the connecting groove 104 is adapted to the connecting lip 202, and the socket opening 103 is adapted to the socket opening 203. The above structure can ensure the matching installation of the connecting groove 104 and the connecting lip 202, and the matching installation of the socket opening 103 and the socket opening 203, thereby laying a foundation for the connection and installation of the upper shell 101 and the lower shell 201 and the alignment of the socket hole;

[0038] See also Figure 1 , 2As shown, further, the upper shell 101 has four countersunk through holes 106 at the four corners for installing the flat head screws 4, and has four countersunk through holes 105 on the sides for installing the countersunk screws 5. The top has an antenna compartment 107. Further, the bottom of the antenna compartment 107 has a circular through hole 108 and a slot-shaped through hole 109. Further, the circular through hole 108 is used for the patch antenna signal line to pass through and connect with the circuit board inside the shell structure, and the slot-shaped through hole 109 is used to disassemble the plastic antenna compartment cover structure 3;

[0039] See also Figure 3 As shown, further, four threaded hole columns 204 are distributed at the four corners of the lower shell 201, two Type C socket openings 205 are arranged on one side, and eight hexagonal nuts 6 are distributed on the inner side. Further, the diameter of the lower end of the threaded hole column 204 is larger than the diameter of the top end, forming a platform for placing the circuit board, the Type C socket opening 205 is aligned with the Type C socket on the circuit board, and the external Type C plug can pass through the Type C socket opening 205 to be connected to the socket, and the hexagonal nut 6 is used to be connected to the connector connecting screws to play a tightening role to prevent the plug and socket from loosening and detaching.

[0040] See also Figure 2 , 4 As shown, further, four threaded holes 302 are provided on the side of the bin cover body 301, and the threaded holes 302 are adapted to the countersunk screws 5, and the bin cover body 301 is adapted to the antenna bin 107, so as to ensure that the bin cover body 301 and the antenna bin 107 are installed in coordination;

[0041] See also Figure 1 As shown, further, the connection structure between the upper shell structure 1 and the lower shell structure 2 is fastened by four flat head screws 4, and the flat head screws 4 are screwed into the threaded hole columns 204 at the four corners of the lower shell 201 through the sunken through holes 106 set at the four corners of the upper shell 101 for fastening. At the same time, the connecting groove 104 at the bottom of the upper shell 101 cooperates with the connecting lip 202 of the lower shell 201, and at the same time, the connector socket opening 103 on the side of the upper shell 101 cooperates with the connector socket opening 203 on the side of the lower shell 201 to form a connector socket opening as a whole; further, the connection structure between the antenna bin 107 in the upper shell 101 and the plastic antenna bin cover structure 3 is fastened by four countersunk screws 5, and the plastic antenna bin cover structure 3 is placed in the antenna bin 107. After alignment, the countersunk screws 5 are screwed into the connecting threaded holes 302 on the side of the bin cover body 301 through the countersunk screw through holes 105 set on the side of the upper shell 101 for fastening.

[0042] It should be noted that the seal 7 adopts waterproof sealant, which is evenly distributed in the gap between the connecting groove 104 and the connecting lip 202 during the connection process of the upper shell 101 and the lower shell 201, ensuring the sealed connection between the upper shell 101 and the lower shell 201. Furthermore, the seal 7 is evenly distributed on the raised platform around the antenna bin 107 during the connection process of the upper shell 101 and the bin cover body 301, ensuring the sealed connection between the upper shell 101 and the bin cover body 301, thereby ensuring the sealing of the overall structural shell.

[0043] In one embodiment of the utility model, a metal-plastic composite housing structure with an antenna circuit board of the above-mentioned structure is adopted. First, the hexagonal nut 6 is fixed to the side of the lower shell 201, and then the circuit board is placed on the threaded hole column 204 platform set at the four corners of the lower shell 201. At the same time, the antenna signal line passes through the circular through hole 108 or the slot-shaped through hole 109 in the antenna compartment 107 as needed and is connected to the circuit board. Further, the seal 7 is evenly distributed on the inner side of the connecting lip 202, and is installed by matching the connecting groove 104 and the connecting lip 202. Further, the upper shell 101 and the lower shell 201 are fastened and connected by 4 flat head screws 4. Tightening the flat head screws 4 can achieve compression of the seal 7. It should be noted that after performing the above operations, the antenna should be placed in the antenna compartment 107, and the antenna signal line is connected to the circuit board through the circular through hole 108 or the slot-shaped through hole 109. Furthermore, the seal 7 is evenly distributed on the raised platform around the antenna compartment 107, the plastic antenna compartment cover structure 3 is placed in the antenna compartment 107, the countersunk through hole 105 and the threaded hole 302 are aligned, and the countersunk screw 5 is screwed into the threaded hole 302 through the countersunk through hole 105 to achieve a mating connection. Tightening the countersunk screw 5 can compress the seal 7 while ensuring the structural sealing and appearance integrity. Furthermore, the connector socket is installed corresponding to the connector socket openings 103, 203, and is matingly tightened with the connecting screw and the hexagonal nut 6 to achieve the sealing operation of the outer shell structure.

[0044] It should be noted that, in the present embodiment, the metal shell structure, including the upper shell structure 1 and the lower shell structure 2, is made of 6061 aluminum alloy through machine tool processing, and the plastic antenna compartment cover structure 3 is made of photocurable resin material through 3D printing.

[0045] The metal-plastic composite shell structure of the circuit board with antenna in this embodiment adopts a split structure of an upper shell structure 1, a lower shell structure 2 and a plastic antenna compartment cover structure 3, and is connected by connecting structures 4 and 5 and sealed by a seal 7. It can be disassembled to facilitate the maintenance and cleaning of the internal antenna and circuit board. The strip groove 102 and the decorative protrusion of the upper shell structure 1 effectively increase the heat dissipation area and improve the heat dissipation speed. The plastic antenna compartment cover structure 3 avoids the shielding effect of the metal shell on the antenna during the process of retracting and releasing signals, so that the shell has the advantages of reliability and signal stability, as well as the advantages of easy carrying and high degree of integration.

Claims

1. A metal-plastic composite housing structure of a circuit board with an antenna, characterized in that: It comprises an upper shell structure (1), a lower shell structure (2) and a plastic antenna compartment cover structure (3); The upper shell structure (1) comprises an upper shell (101), the bottom end of the upper shell is provided with an integrally formed connection groove (104), both sides of the top of the upper shell are provided with evenly distributed first strip grooves (102), the four corners of the upper shell are provided with sink holes, and the side of the upper shell is provided with a first connector socket opening (103); the top of the upper shell is provided with an antenna compartment (107), and the antenna compartment is provided with a wiring through hole, the upper ends of both sides of the upper shell are provided with countersunk through holes, and the inside of the upper shell is provided with hexagonal grooves on both sides; The lower shell structure (2) is located at the lower end of the upper shell structure (1), and the lower shell structure (2) comprises a lower shell (201), the top of the lower shell is provided with an integrally formed connecting lip (202), the outer side of the lower shell is provided with evenly distributed strip grooves, the four corners of the lower shell are provided with threaded hole columns (204), the side of the lower shell is provided with a second connector socket opening (203), and the interior of the lower shell is provided with a hexagonal groove; The plastic antenna compartment cover structure (3) comprises a compartment cover body (301), the upper end of which is provided with evenly distributed second strip grooves (303) and protrusions, so that the compartment cover body (301) and the upper shell (101) maintain the consistency of appearance; threaded holes are provided on both sides of the compartment cover body (301); The upper shell structure (1) and the lower shell structure (2) are connected via connection structures arranged at four corners; The plastic antenna compartment cover structure (3) is connected to the upper shell structure (1) via connection structures arranged on both sides; A sealing member is provided between the upper shell structure (1) and the lower shell structure (2), and between the upper shell structure (1) and the plastic antenna compartment cover structure (3).

2. The metal-plastic composite housing structure of a circuit board with an antenna according to claim 1, characterized in that: The top of the upper shell (101) is provided with a decorative protrusion for identifying the front and back sides of the overall shell structure, and the decorative protrusion of the upper shell is connected to the protrusion on the top of the compartment cover body.

3. The metal-plastic composite housing structure of a circuit board with an antenna according to claim 1, characterized in that: The threaded hole column inside the lower shell is divided into two sections, the diameter of the first section column is larger than the diameter of the second section column, and the cross section of the first section column is used to provide a circuit board installation platform to prevent the circuit board from directly contacting the bottom of the lower shell and causing a short circuit.

4. The metal-plastic composite circuit board housing structure with antenna according to claim 1, characterized in that: Connector socket openings are arranged on both sides of the upper shell and the lower shell, the positions of the openings correspond to each other, and the shapes and sizes of the openings of the upper shell and the lower shell are the same.

5. The metal-plastic composite circuit board housing structure with antenna according to claim 1, characterized in that: Hexagonal grooves are arranged at screw through holes around the connector socket opening inside the upper shell and the lower shell to facilitate the installation of hexagonal nuts.

6. The metal-plastic composite housing structure of a circuit board with an antenna according to claim 1, characterized in that: The bottom end of the upper shell is provided with a connecting groove (104), which is matched with the connecting lip provided at the top end of the lower shell, so as to ensure the matching installation of the connecting groove and the connecting lip.

7. The metal-plastic composite housing structure of a circuit board with an antenna according to claim 1, characterized in that: The side of the antenna compartment of the upper shell is provided with a platform protrusion, which is used to abut against the compartment cover body to ensure that the upper edge of the compartment cover is flush with the upper edge of the upper shell.

8. The metal-plastic composite circuit board housing structure with antenna according to claim 1, characterized in that: The connecting structure includes a first connecting screw and a second connecting screw. The first connecting screw passes through the countersunk hole of the upper shell and is screwed into the connecting threaded hole of the lower shell that is compatible with it to achieve the installation of the connecting structure. At the same time, the second connecting screw passes through the countersunk through holes on both sides of the upper end of the upper shell and is screwed into the threaded holes on both sides of the compartment cover body that are compatible with it to achieve the installation of the connecting structure between the upper shell structure and the plastic antenna compartment cover structure, laying the foundation for the coordinated installation and connection installation of the outer shell structure.

9. The metal-plastic composite circuit board housing structure with antenna according to claim 8, characterized in that: The upper shell and the lower shell are both provided with mounting holes corresponding to the first connecting screw, and the first connecting screw is adapted to the mounting holes on the upper shell and the lower shell. The upper shell and the bin cover body are both provided with mounting holes corresponding to the second connecting screw, and the second connecting screw is adapted to the mounting holes on the upper shell and the bin cover body.

10. The metal-plastic composite circuit board housing structure with antenna according to claim 1, characterized in that: The sealing member is a sealant, and the sealing member is filled between the connecting groove and the connecting lip, and the sealing member is filled between the platform protrusion and the bottom edge of the bin cover body.

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