Multi-channel anti-interference radio frequency chip

Abstract

The utility model relates to the field of radio frequency chips, and discloses a multi-channel anti-interference radio frequency chip, which comprises a circuit board and a fixed frame, a chip is fixedly mounted at the top of the circuit board, a connecting hole is formed in the inner wall of the fixed frame, a baffle plate is slidably connected to the inner wall of the connecting hole, a bottom plate is fixedly mounted at the bottom end of the baffle plate, and the bottom plate is fixedly connected with the circuit board. The bottom end of the bottom plate is movably connected with the top of the chip, the bottom end of the bottom plate is movably connected with a connecting frame, and a plurality of shielding frames are fixedly mounted on the surface of the connecting frame; the fixing frame is installed at the upper end of the circuit board, the shielding plate is installed on the inner wall of the fixing frame, the bottom plate is installed at the bottom end of the shielding plate, the connecting frame is connected to the bottom end of the bottom plate, and the multiple shielding frames are installed on the surface of the connecting frame, so that the shielding frames are installed at the upper end of the circuit board through the shielding plate; and the plurality of shielding frames disperse the signals of the chip to the upper end of the signal transmission element, so that the situation that the signals of the chip are directly interfered to influence the use is effectively avoided.

Description

Technical Field

[0001] The present application relates to the field of radio frequency chips, and in particular to a multi-channel anti-interference radio frequency chip. Background Art

[0002] An RF chip is an integrated circuit used to process RF signals. RF signals refer to electromagnetic wave signals with frequencies between 300kHz and 300GHz. The main function of an RF chip is to receive, modulate and send RF signals, enabling wireless communication devices to achieve wireless transmission and reception. The working principle of an RF chip is based on analog circuits, and it is usually composed of an RF front-end circuit and a digital signal processing circuit. The RF front-end circuit is responsible for amplifying, filtering, modulating and converting RF signals into digital signals, while the digital signal processing circuit is responsible for processing and decoding digital signals and converting them into a usable format. RF chips are widely used, and the most common application is in the field of communications, especially in wireless communication systems. They are widely used in mobile phones, wireless network equipment, satellite communications, radar and radio broadcasting, and other fields. In addition, RF chips can also be used in medical equipment, aerospace, security systems and radio spectrum monitoring.

[0003] With respect to the above-mentioned related technologies, the inventors believe that when conventional RF chips are in use, the existence of external electromagnetic fields or other wireless devices can easily cause interference to the use of the RF chips. Conventionally, frequency selective filters are used to block interference signals. When in use, when operating in a small range, this can easily affect the signal of the RF chip itself.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that conventional anti-interference methods are prone to affect RF chip signals, the present application provides a multi-channel anti-interference RF chip.

[0006] The multi-channel anti-interference radio frequency chip provided in this application adopts the following technical solution:

[0007] A multi-channel anti-interference radio frequency chip comprises a circuit board and a fixed frame, wherein a chip is fixedly mounted on the top of the circuit board, a connecting hole is opened on the inner wall of the fixing frame, a shielding plate is slidably connected to the inner wall of the connecting hole, a bottom plate is fixedly mounted on the bottom end of the shielding plate, the bottom end of the bottom plate is movably connected to the top of the chip, and the bottom end of the bottom plate is movably connected to the connecting frame, a plurality of shielding frames are fixedly mounted on the surface of the connecting frame, the surface of the bottom plate is snap-fitted to the inner wall of the fixing frame, and the size specification of the bottom end of the bottom plate is adapted to the size specification of the top of the chip, and a plurality of the shielding frames are distributed in a circular array with the chip as the axis.

[0008] Preferably, the size of the bottom plate surface is compatible with the size of the inner wall of the fixing frame, the inner wall of the fixing frame is clamped with two fixing bolts, the surface of the fixing bolts is threadedly connected to the inner wall of the circuit board, and the two fixing bolts are symmetrically distributed with the fixing frame as the axis.

[0009] Preferably, the baffle plate is a copper plate, and the size of the surface of the baffle plate is compatible with the size of the inner wall of the connecting hole.

[0010] Preferably, a mounting hole is provided on the inner wall of the connection frame, the inner wall of the mounting hole is snap-fitted with the chip surface, and the size of the inner wall of the mounting hole is compatible with the size of the chip surface, and the bottom ends of the connection frame and the shielding frame are both provided with connecting grooves.

[0011] Preferably, a shielding ring is fixedly connected to the top of the bottom plate, the top of the shielding ring is clamped with the bottom end of the fixed frame, and the shielding ring is a rubber ring.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. By installing the fixing frame on the upper end of the circuit board, a baffle plate is installed on the inner wall of the fixing frame, a bottom plate is installed on the bottom end of the baffle plate, a connecting frame is connected to the bottom end of the bottom plate, and several baffle frames are installed on the surface of the connecting frame, so that the baffle plate can be used to install the baffle frame on the upper end of the circuit board, and the baffle plate and the chip surface are used to protect the signal from interference. Several baffle frames disperse the chip signal to the upper end of the signal transmission element, effectively avoiding the situation where the chip signal is directly interfered with and affects the use. The inner wall of the fixing frame is clamped with a fixing bolt, and the surface of the fixing bolt is threadedly connected to the inner wall of the circuit board, so that the fixing frame can be easily disassembled with the help of the fixing bolt, so as to facilitate the disassembly of the chip for inspection, and the copper baffle plate is clamped on the fixing frame with the help of the bottom plate, so as to connect the baffle plate to the top of the chip, so as to shield the surface of the chip with the help of the copper of the baffle plate that can prevent electromagnetic radiation, thereby effectively improving the anti-interference effect of the device; compared with the prior art, the anti-interference effect of the radio frequency chip is effectively improved;

[0014] 2. A mounting hole can also be opened on the inner wall of the connecting frame, and the inner wall of the mounting hole is connected to the surface of the chip. A connecting groove is opened at the bottom of the connecting frame and the shielding frame, so that the connecting frame and the shielding frame can be installed on the upper end of the circuit connected to the chip with the help of the connecting groove, thereby protecting the periphery of the connecting circuit. A rubber shielding ring is installed on the top of the bottom plate, and the top of the shielding ring is clamped with the bottom of the fixed frame, so that the connection between the bottom plate and the fixed frame can be shielded with the help of the shielding ring, effectively preventing external impurities from entering the fixed frame and causing damage to the chip; effectively improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a multi-channel anti-interference radio frequency chip according to an embodiment of the application;

[0016] Figure 2 is a schematic diagram of a fixed frame structure of an embodiment of the application;

[0017] Figure 3 is a side view schematic diagram of the structure of an embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the structure at location A of an embodiment of the application.

[0019] Explanation of the accompanying drawings: 1. Circuit board; 2. Chip; 3. Fixing frame; 4. Connecting hole; 5. Shielding plate; 6. Bottom plate; 7. Fixing bolt; 8. Shielding ring; 9. Connecting frame; 10. Mounting hole; 11. Shielding frame; 12. Connecting groove. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 —4 Provide further details of this application.

[0021] The present application embodiment discloses a multi-channel anti-interference radio frequency chip, referring to Figure 1 - Figure 2, including a circuit board 1, which is installed on the inner wall of the wireless communication device. A chip 2 is installed on the surface of the circuit board 1. With the help of the chip 2, a digital signal is converted into an analog signal, or an analog signal is converted into a digital signal, so that the wireless communication device can receive and send wireless signals. A fixing frame 3 is installed on the upper end of the circuit board 1. A connecting hole 4 is opened on the inner wall of the fixing frame 3. A shielding plate 5 is installed on the inner wall of the connecting hole 4. A bottom plate 6 is installed on the bottom end of the shielding plate 5. A connecting frame 9 is connected to the bottom end of the bottom plate 6. A plurality of shielding frames 11 are installed on the surface of the connecting frame 9. With the help of the shielding plate 5, the shielding frame 11 is installed on the upper end of the circuit board 1. With the help of the shielding frame 11, the shielding plate 5 and the surface of the chip 2 are protected from signal interference. The plurality of shielding frames 11 disperse the signal of the chip 2 to the upper ends of other signal transmission elements. With the help of multiple signal transmission elements, the transmission signal of the chip 2 is dispersed, which effectively avoids the situation where the signal of the chip 2 is directly interfered with and affects the use of the device.

[0022] Reference Figure 2 The inner wall of the fixing frame 3 is clamped with a fixing bolt 7, and the surface of the fixing bolt 7 is threadedly connected to the inner wall of the circuit board 1. The fixing frame 3 is installed on the upper end of the circuit board 1 with the help of the fixing bolt 7, and the fixing frame 3 can be disassembled after the fixing bolt 7 is removed, so that the chip 2 in the fixing frame 3 can be inspected and repaired, and the copper shielding plate 5 is clamped on the fixing frame 3 with the help of the bottom plate 6, so that the shielding plate 5 is connected to the top of the chip 2. The copper of the shielding plate 5 can prevent electromagnetic radiation and shield the surface of the chip 2, thereby effectively improving the anti-interference effect of the device.

[0023] Reference Figure 2 - Figure 4 A mounting hole 10 is provided on the inner wall of the connecting frame 9, and the inner wall of the mounting hole 10 is connected to the surface of the chip 2. A connecting groove 12 is provided at the bottom of the connecting frame 9 and the shielding frame 11. With the help of the connecting groove 12, the connecting frame 9 and the shielding frame 11 are installed on the upper end of the circuit connected to the chip 2, so as to protect the periphery of the connecting circuit. A shielding ring 8 made of rubber is installed on the top of the bottom plate 6, and the top of the shielding ring 8 is clamped with the bottom end of the fixed frame 3. With the help of the shielding ring 8, the connection between the bottom plate 6 and the fixed frame 3 is shielded, which effectively prevents external impurities from entering the fixed frame 3 and causing damage to the chip 2.

[0024] The implementation principle of a multi-channel anti-interference radio frequency chip in the embodiment of the present application is as follows: by installing a fixing frame 3 on the upper end of a circuit board 1, a shielding plate 5 is installed on the inner wall of the fixing frame 3, a bottom plate 6 is installed on the bottom end of the shielding plate 5, a connecting frame 9 is connected to the bottom end of the bottom plate 6, and a plurality of shielding frames 11 are installed on the surface of the connecting frame 9, so that the shielding frame 11 is installed on the upper end of the circuit board 1 with the help of the shielding plate 5, and the shielding frame 11 and the shielding plate 5 are used to protect the surface of the chip 2 from signal interference, and the plurality of shielding frames 11 disperse the signal of the chip 2 to the upper end of the signal transmission element , effectively avoiding the situation where the signal of the chip 2 is directly interfered with and affects the use. The inner wall of the fixing frame 3 is clamped with a fixing bolt 7, and the surface of the fixing bolt 7 is threadedly connected to the inner wall of the circuit board 1, so that the fixing frame 3 can be easily disassembled with the help of the fixing bolt 7, thereby facilitating the disassembly of the chip 2 for inspection and repair. The copper shielding plate 5 is clamped on the fixing frame 3 with the help of the bottom plate 6, so that the shielding plate 5 is connected to the top of the chip 2, so that the copper shielding plate 5 can prevent electromagnetic radiation and shield the surface of the chip 2, effectively improving the anti-interference effect of the device.

[0025] A mounting hole 10 can also be opened on the inner wall of the connecting frame 9, and the inner wall of the mounting hole 10 is connected to the surface of the chip 2. A connecting groove 12 is opened at the bottom of the connecting frame 9 and the shielding frame 11, so that the connecting frame 9 and the shielding frame 11 can be installed on the upper end of the circuit connected to the chip 2 with the help of the connecting groove 12, so as to protect the periphery of the connecting circuit. A shielding ring 8 made of rubber material is installed on the top of the base plate 6, and the top of the shielding ring 8 is clamped with the bottom end of the fixed frame 3, so that the connection between the base plate 6 and the fixed frame 3 can be shielded with the help of the shielding ring 8, so as to effectively prevent external impurities from entering the fixed frame 3 and causing damage to the chip 2.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-channel anti-interference radio frequency chip, comprising a circuit board (1) and a fixing frame (3), characterized in that: A chip (2) is fixedly mounted on the top of the circuit board (1); a connection hole (4) is provided on the inner wall of the fixing frame (3); a shielding plate (5) is slidably connected to the inner wall of the connection hole (4); a bottom plate (6) is fixedly mounted on the bottom end of the shielding plate (5); the bottom end of the bottom plate (6) is movably connected to the top of the chip (2); and the bottom end of the bottom plate (6) is movably connected to a connection frame (9); and a plurality of shielding frames (11) are fixedly mounted on the surface of the connection frame (9).

2. The multi-channel anti-interference radio frequency chip according to claim 1, characterized in that: The surface of the bottom plate (6) is snap-fitted to the inner wall of the fixed frame (3), and the size of the bottom end of the bottom plate (6) matches the size of the top of the chip (2). A plurality of shielding frames (11) are distributed in a circular array with the chip (2) as the axis.

3. The multi-channel anti-interference radio frequency chip according to claim 1, characterized in that: The size specifications of the surface of the base plate (6) are compatible with the size specifications of the inner wall of the fixing frame (3); the inner wall of the fixing frame (3) is clamped with two fixing bolts (7); the surface of the fixing bolts (7) is threadedly connected to the inner wall of the circuit board (1); and the two fixing bolts (7) are symmetrically distributed with the fixing frame (3) as the axis.

4. The multi-channel anti-interference radio frequency chip according to claim 1, characterized in that: The shielding plate (5) is a copper plate, and the size specifications of the surface of the shielding plate (5) are compatible with the size specifications of the inner wall of the connecting hole (4).

5. The multi-channel anti-interference radio frequency chip according to claim 1, characterized in that: The inner wall of the connection frame (9) is provided with a mounting hole (10), the inner wall of the mounting hole (10) is snap-fitted with the surface of the chip (2), and the size of the inner wall of the mounting hole (10) is compatible with the size of the surface of the chip (2), and the bottom ends of the connection frame (9) and the shielding frame (11) are both provided with a connecting groove (12).

6. The multi-channel anti-interference radio frequency chip according to claim 1, characterized in that: A shielding ring (8) is fixedly connected to the top of the bottom plate (6); the top of the shielding ring (8) is clamped with the bottom end of the fixed frame (3); and the shielding ring (8) is a rubber ring.

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