Onboard multi-channel wifi antenna

Abstract

The utility model relates to a kind of on-board multi-channel WIFI antenna, front surface fin is fixed on the front surface of mounting plate, first, second, third, fourth printed circuit board antenna is fixed on the mounting plate outside the front surface fin by their respective support, first, second, third, fourth printed circuit board antenna are all connected with their respective connector by their respective coaxial cable, first, second metal sheet antenna is fixed on the mounting plate outside the front surface fin, first, second metal sheet antenna are all connected with their respective connector by their respective coaxial cable;Back surface fin and wave-absorbing sheet are fixed on the back surface of mounting plate.The utility model effectively shields and isolates the chip of antenna part and user end circuit part, prevents the chip of user end circuit part from being interfered by antenna signal, and also plays the heat dissipation effect for the chip of user end circuit part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a WIFI antenna, and specifically discloses an on-board multi-channel WIFI antenna. BACKGROUND

[0002] On-board antennas can provide better connection capability and higher data transmission speed for devices, and also meet the needs of consumers for low power consumption, small size and multi-function. Compared with external antennas, on-board antennas have simpler, more compact design and higher anti-interference capability. Direct integration with devices has smaller size and simpler design. This not only saves space, but also reduces production cost. Now, on-board antennas have been widely used in wireless communication, smart home, Internet of Things and other fields. SUMMARY

[0003] The utility model discloses a kind of on-board multi-channel WIFI antennas, which can prevent the chip of user end circuit part from being interfered and simultaneously play the role of heat dissipation for the chip of user end circuit part.

[0004] According to the technical scheme provided by the utility model, the on-board multi-channel WIFI antenna comprises a mounting plate, a first printed circuit board antenna, a second printed circuit board antenna, a third printed circuit board antenna, a fourth printed circuit board antenna, a first metal sheet antenna, a second metal sheet antenna, a front heat sink, a coaxial cable, a connector, a back heat sink and a wave-absorbing sheet.

[0005] The front heat sink is fixed on the front surface of the mounting plate, and the back surface of the front heat sink is attached to the front surface of the mounting plate. The first printed circuit board antenna, the second printed circuit board antenna, the third printed circuit board antenna and the fourth printed circuit board antenna are fixed on the mounting plate outside the front heat sink through their respective supports. The first printed circuit board antenna, the second printed circuit board antenna, the third printed circuit board antenna and the fourth printed circuit board antenna are connected to their respective connectors through their respective coaxial cables. The first metal sheet antenna and the second metal sheet antenna are fixed on the mounting plate outside the front heat sink. The first metal sheet antenna and the second metal sheet antenna are connected to their respective connectors through their respective coaxial cables.

[0006] The back heat sink and the wave-absorbing sheet are fixed on the back surface of the mounting plate. The front surface of the back heat sink and the front surface of the wave-absorbing sheet are attached to the back surface of the mounting plate.

[0007] Preferably, the front heat sink is fixed at the center position of the front surface of the mounting plate.

[0008] As a preference, the first printed circuit board antenna, the second printed circuit board antenna, the third printed circuit board antenna, the fourth printed circuit board antenna, the first metal sheet antenna and the second metal sheet antenna are fixed at the edge position of the mounting plate.

[0009] The antenna part and the chip of the user terminal circuit part are effectively shielded and isolated, the chip of the user terminal circuit part is prevented from being interfered by the antenna signal, and the chip of the user terminal circuit part is also cooled. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a perspective view of the utility model.

[0011] Figure 2 is a front view of the utility model.

[0012] Figure 3 is a right view of the utility model.

[0013] Figure 4 is a rear view of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0015] A kind of on-board multi-channel WIFI antenna, it includes mounting plate 1, first printed circuit board antenna 2, second printed circuit board antenna 3, third printed circuit board antenna 4, fourth printed circuit board antenna 5, first metal sheet antenna 6, second metal sheet antenna 7, front heat sink 8, coaxial cable 9, connecting head 10, back heat sink 11 and wave-absorbing sheet 12;

[0016] A front heat sink 8 is fixed on the front side of the mounting plate 1, and the back side of the front heat sink 8 is in contact with the front side of the mounting plate 1. The first printed circuit board antenna 2, the second printed circuit board antenna 3, the third printed circuit board antenna 4 and the fourth printed circuit board antenna 5 are fixed on the mounting plate 1 outside the front heat sink 8 by their respective brackets. The first printed circuit board antenna 2, the second printed circuit board antenna 3, the third printed circuit board antenna 4 and the fourth printed circuit board antenna 5 are all connected to their respective connectors 10 through their respective coaxial cables 9. The first metal sheet antenna 6 and the second metal sheet antenna 7 are fixed on the mounting plate 1 outside the front heat sink 8. The first metal sheet antenna 6 and the second metal sheet antenna 7 are all connected to their respective connectors 10 through their respective coaxial cables 9.

[0017] A back heat sink 11 and a wave-absorbing sheet 12 are fixed on the back of the mounting plate 1. The front of the back heat sink 11 and the front of the wave-absorbing sheet 12 are both in contact with the back of the mounting plate 1.

[0018] The front heat sink 8 is fixed at the center of the front of the mounting plate 1.

[0019] The first printed circuit board antenna 2, the second printed circuit board antenna 3, the third printed circuit board antenna 4, the fourth printed circuit board antenna 5, the first metal sheet antenna 6, and the second metal sheet antenna 7 are fixed at the edge of the mounting plate 1.

[0020] In this utility model, the mounting plate 1 is a metal plate.

[0021] In this invention, the frequency band of the first printed circuit board antenna 2 is 5150-5850MHz, the frequency bands of the second printed circuit board antenna 3, the third printed circuit board antenna 4 and the fourth printed circuit board antenna 5 are all 5925MHz-7125MHz, and the first metal sheet antenna 6 and the second metal sheet antenna 7 are dual-band antennas with frequency bands of 2400-2500MHz and 5150-5825MHz respectively.

[0022] In use, the front of the chip casing of the user terminal circuit section is attached to the back of the heat sink 11. The heat generated by the chip in the user terminal circuit section during operation is conducted through the back heat sink 11 to the mounting plate 1, then to the front heat sink 8, and finally radiated into the surrounding space, thus improving the heat dissipation capacity of the user terminal circuit section. The absorbing sheet 12 can absorb the wireless signals leaking to the back of the mounting plate 1 and generated by the antenna section of this invention (including the first printed circuit board antenna 2, the second printed circuit board antenna 3, the third printed circuit board antenna 4, the fourth printed circuit board antenna 5, the first metal sheet antenna 6, and the second metal sheet antenna 7), preventing interference to the chip in the user terminal circuit section.

[0023] Finally, it should be noted that the above specific embodiments are merely intended to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. An on-board multi-channel WIFI antenna, characterized in that: It includes installation plate (1), first printed circuit board antenna (2), second printed circuit board antenna (3), third printed circuit board antenna (4), fourth printed circuit board antenna (5), first metal sheet antenna (6), second metal sheet antenna (7), front heat sink (8), coaxial cable (9), connector (10), back heat sink (11) and wave absorbing sheet (12). The front heat sink (8) is fixed on the front of the installation plate (1), the back of the front heat sink (8) is attached to the front of the installation plate (1), the first printed circuit board antenna (2), the second printed circuit board antenna (3), the third printed circuit board antenna (4) and the fourth printed circuit board antenna (5) are fixed on the installation plate (1) outside the front heat sink (8) through their respective supports, the first printed circuit board antenna (2), the second printed circuit board antenna (3), the third printed circuit board antenna (4) and the fourth printed circuit board antenna (5) are connected to their respective connectors (10) through their respective coaxial cables (9), the first metal sheet antenna (6) and the second metal sheet antenna (7) are fixed on the installation plate (1) outside the front heat sink (8), the first metal sheet antenna (6) and the second metal sheet antenna (7) are connected to their respective connectors (10) through their respective coaxial cables (9). The back heat sink (11) and the wave absorbing sheet (12) are fixed on the back of the installation plate (1), the front of the back heat sink (11) and the front of the wave absorbing sheet (12) are attached to the back of the installation plate (1).

2. The on-board multi-channel WIFI antenna of claim 1, wherein: The front heat sink (8) is fixed on the front center of the installation plate (1).

3. The on-board multi-channel WIFI antenna of claim 2, wherein: The first printed circuit board antenna (2), the second printed circuit board antenna (3), the third printed circuit board antenna (4), the fourth printed circuit board antenna (5), the first metal sheet antenna (6) and the second metal sheet antenna (7) are fixed on the edge of the installation plate (1). The first printed circuit board antenna (2), the second printed circuit board antenna (3), the third printed circuit board antenna (4), the fourth printed circuit board antenna (5), the first metal sheet antenna (6) and the second metal sheet antenna (7) are fixed on the edge of the installation plate (1). ​

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