Anti-interference centralized high-frequency circuit element

Abstract

The invention provides an anti-interference centralized high-frequency circuit element which comprises a substrate, a centralized high-frequency circuit board is arranged on the substrate, and the outer surface of the centralized high-frequency circuit board is sleeved with an electromagnetic shielding frame located on the substrate. The top side of the electromagnetic shielding frame is provided with a field intensity monitor used for monitoring the shielding condition of the electromagnetic shielding frame in real time and an alarm located on the side of the field intensity monitor, the substrate is provided with a controller located on the side of the electromagnetic shielding frame, and the controller is electrically connected with the field intensity monitor and the alarm. Compared with the prior art, the centralized high-frequency circuit board has the following beneficial effects that external electromagnetism is blocked through the electromagnetic shielding frame, so that the centralized high-frequency circuit board is in a sealed and interference-free state, the use state of the centralized high-frequency circuit board can be kept stable, the shielding condition of the electromagnetic shielding frame can be monitored in real time through the field intensity monitor, and the working efficiency of the centralized high-frequency circuit board is improved. And the anti-interference capability of the centralized high-frequency circuit board is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-frequency circuit elements, and in particular to an anti-interference centralized high-frequency circuit element. Background Art

[0002] High-frequency circuits are basically composed of passive components, active devices and passive networks. The frequency characteristics of components used in high-frequency circuits are different from those used in low-frequency circuits. The abbreviation of electromagnetic compatibility EMC means that an electronic device neither interferes with other devices nor is affected by other devices. Electromagnetic compatibility, like the safety we are familiar with, is one of the most important indicators of product quality. Safety involves personal and property, while electromagnetic compatibility involves personal and environmental protection. The interference of electronic components to the outside world is called EMI; electromagnetic waves will interact with electronic components and cause interference, which is called EMS.

[0003] When the existing centralized high-frequency circuit components are in use, the equipment is easily affected by external electromagnetic interference, resulting in unstable electromagnetic use inside the equipment, which in turn affects the transmission of information and the use of the equipment; after shielding, the results must be detected by an EMC laboratory. Combining the two in the existing electromagnetic radiation monitor technology can achieve good anti-interference and monitoring functions; therefore, in response to the above technical problems, it is necessary to provide an anti-interference centralized high-frequency circuit component. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an interference-resistant centralized high-frequency circuit element to solve the problem in the prior art that it is impossible to shield the centralized high-frequency circuit element while using an electromagnetic radiation monitor to monitor the shielding situation in real time.

[0005] To achieve the above objectives and other related objectives, the present invention provides the following technical solutions:

[0006] An anti-interference centralized high-frequency circuit element comprises a substrate, on which a centralized high-frequency circuit board is provided, the outer surface of the centralized high-frequency circuit board is provided with an electromagnetic shielding frame located on the substrate, on which first driving components are provided on both sides of the electromagnetic shielding frame and used to drive the electromagnetic shielding frame to move up and down, both sides of the electromagnetic shielding frame away from the first driving components are provided with movable doors movably connected by rotating rods, on the side of the electromagnetic shielding frame close to one of the first driving components, two second driving components are provided for driving the rotating rod to rotate, a field strength monitor for real-time monitoring of the shielding condition of the electromagnetic shielding frame and an alarm located on the side of the field strength monitor are provided on the top side of the electromagnetic shielding frame, and a controller located on the side of the electromagnetic shielding frame is provided on the substrate, and the controller is electrically connected to the field strength monitor and the alarm respectively.

[0007] The field strength monitor in the above technical solution can monitor the field strength outside the electromagnetic shielding frame and determine whether the electromagnetic shielding frame is leaking, and monitor the shielding condition of the electromagnetic shielding frame in real time, thereby improving the anti-interference ability of the centralized high-frequency circuit board. The alarm can sound an alarm when the electromagnetic shielding frame leaks, thereby notifying the staff in time.

[0008] In one embodiment of the present invention, a rectangular groove is provided on the substrate, which is located around the centralized high-frequency circuit board and matches the shape of the bottom side of the electromagnetic shielding frame. The bottom side of the electromagnetic shielding frame can be inserted into the rectangular groove.

[0009] In one embodiment of the present invention, the first driving assembly includes a first electric push rod, a fixing plate installed on the telescopic rod of the first electric push rod, and a fixing connecting frame connected to the fixing plate, and the side of the fixing connecting frame away from the fixing plate is connected to the electromagnetic shielding frame; this technical solution can drive the fixing plate to move up and down by the telescopic rod of the first electric push rod moving up and down, thereby driving the fixing connecting frame to move up and down, and the electromagnetic shielding frame can be moved up and down, thereby achieving the purpose of opening and closing the electromagnetic shielding frame.

[0010] In one embodiment of the present invention, a notch is provided on the electromagnetic shielding frame corresponding to the movable door, and a limiting area located inside the electromagnetic shielding frame is provided on the side of the notch. When the movable door is in a closed state, it is located exactly inside the limiting area. This technical solution can repair and rectify the centralized high-frequency circuit board through the notch.

[0011] In one embodiment of the present invention, electromagnetic sealing gaskets are provided on the bottom sides of the electromagnetic shielding frame and the movable door, and the shapes formed by the electromagnetic sealing gaskets on the bottom sides of the electromagnetic shielding frame and the movable door match the shape of the rectangular groove.

[0012] In one embodiment of the present invention, the second driving assembly includes a second electric push rod installed on the electromagnetic shielding frame, a rack installed on the telescopic rod of the second electric push rod, and a gear meshing with the rack, and one end of the rotating rod passes through the electromagnetic shielding frame and is connected to the gear; this technical solution can drive the rack to move up and down by moving the telescopic rod of the second electric push rod up and down, thereby causing the gear to rotate, and then driving the rotating rod to rotate, thereby achieving the purpose of opening and closing the movable door.

[0013] In one embodiment of the present invention, the first electric push rod and the second electric push rod are both electrically connected to the controller, and the first electric push rod is electrically connected to the second electric push rod, and the driving directions of the first electric push rod and the second electric push rod remain synchronized and consistent.

[0014] As described above, the anti-interference centralized high-frequency circuit element of the present invention has the following beneficial effects:

[0015] The present invention blocks external electromagnetic radiation through an electromagnetic shielding frame, thereby keeping the centralized high-frequency circuit board in a sealed and interference-free state, and can keep the use state of the centralized high-frequency circuit board stable; when the electromagnetic shielding frame is in a closed state under the action of the first electric push rod, the second electric push rod can control the movable door to be closed at the same time, thereby ensuring the sealing of the electromagnetic shielding frame; when the electromagnetic shielding frame is opened under the action of the first electric push rod, the second electric push rod can control the movable door to open, and reserve a larger space at the upper end of the centralized high-frequency circuit board, which is convenient for staff to trim the centralized high-frequency circuit board; and a field strength monitor is used to monitor the field strength outside the electromagnetic shielding frame and determine whether the electromagnetic shielding frame is leaking, and the shielding condition of the electromagnetic shielding frame is monitored in real time, thereby improving the anti-interference ability of the centralized high-frequency circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a left front view schematic diagram of the electromagnetic shielding frame of the anti-interference centralized high-frequency circuit element disclosed in the embodiment of the present invention when it is closed;

[0017] Figure 2 It is a left front view schematic diagram of an electromagnetic shielding frame in an anti-interference centralized high-frequency circuit element disclosed in an embodiment of the present invention when it is opened;

[0018] Figure 3 The anti-interference centralized high-frequency circuit element disclosed in the embodiment of the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4It is a left-side cross-sectional schematic diagram showing a closed movable door in an anti-interference centralized high-frequency circuit element disclosed in an embodiment of the present invention;

[0020] Figure 5 It is a left-side cross-sectional schematic diagram showing the opening of a movable door in the anti-interference centralized high-frequency circuit element disclosed in an embodiment of the present invention.

[0021] Component number description

[0022] 1. Base plate; 2. Electromagnetic shielding frame; 3. Movable door; 4. First drive assembly; 401. First electric push rod; 402. Fixed plate; 403. Fixed connecting frame; 5. Second drive assembly; 501. Second electric push rod; 502. Rack; 503. Gear; 6. Controller; 7. Field strength monitor; 8. Alarm; 9. Centralized high-frequency circuit board; 10. Rectangular groove; 11. Notch; 12. Electromagnetic sealing gasket; 13. Rotating rod; 14. Limiting area. DETAILED DESCRIPTION

[0023] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] See also Figures 1 to 5 The present invention provides an interference-resistant centralized high-frequency circuit element, including a substrate 1, a centralized high-frequency circuit board 9 is provided in the middle position of the substrate 1, an electromagnetic shielding frame 2 located on the outer surface of the centralized high-frequency circuit board 9 is set, and a rectangular groove 10 is opened on the substrate 1, which is located on the peripheral side of the centralized high-frequency circuit board 9 and matches the bottom side shape of the electromagnetic shielding frame 2. When the electromagnetic shielding frame 2 is in a closed state, the bottom side of the electromagnetic shielding frame 2 is inserted into the rectangular groove 10; specifically, the electromagnetic shielding frame 2 is used to block external electromagnetic radiation, so that the centralized high-frequency circuit board 9 is in a sealed and interference-free state, so the electromagnetic shielding frame 2 can protect the centralized high-frequency circuit board 9 and keep the use state of the centralized high-frequency circuit board 9 stable.

[0025] Depend on Figure 1 and Figure 2It can be seen that the substrate 1 is provided with a first driving component 4 located on the left and right sides of the electromagnetic shielding frame 2 and used to drive the electromagnetic shielding frame 2 to move up and down. The first driving component 4 includes a first electric push rod 401, a fixing plate 402 installed on the telescopic rod of the first electric push rod 401, and a fixing connection frame 403 connected to the fixing plate 402. The side of the fixing connection frame 403 away from the fixing plate 402 is connected to the electromagnetic shielding frame 2, wherein the shape of the fixing connection frame 403 is a Z shape; specifically, the use of the electromagnetic shielding frame 2 can be controlled by the first electric push rod 401, and the first electric push rod 401 is started. The first electric push rod 401 drives the telescopic rod, the fixing plate 402, the fixing connection frame 403 and the electromagnetic shielding frame 2 inside it to move up and down. When the electromagnetic shielding frame 2 moves up, it is in an open state. When the electromagnetic shielding frame 2 moves down and the bottom side of the electromagnetic shielding frame 2 is inserted into the rectangular groove 10, the electromagnetic shielding frame 2 is in a closed state, which can shield the external electromagnetic of the electromagnetic shielding frame 2 and improve the anti-interference ability of the centralized high-frequency circuit board 9.

[0026] See also Figure 4 and Figure 5 , the front and rear sides of the electromagnetic shielding frame 2 are both connected to the movable door 3 by a rotating rod 13, the front and rear sides of the electromagnetic shielding frame 2 are provided with a notch 11, and the side of the notch 11 is provided with a limiting area 14 located in the electromagnetic shielding frame 2, and the movable door 3 is just located in the limiting area 14 when it is in a closed state, wherein the length and width of the limiting area 14 are both greater than the length and width of the notch 11; the bottom sides of the electromagnetic shielding frame 2 and the movable door 3 are both provided with an electromagnetic sealing gasket 12, and the shape formed by the electromagnetic sealing gasket 12 on the bottom side of the electromagnetic shielding frame 2 and the electromagnetic sealing gasket 12 on the bottom side of the movable door 3 matches the shape of the rectangular groove 10; specifically, when the electromagnetic shielding frame 2 is in a closed state, the movable door 3 is closed, and when the electromagnetic shielding frame 2 is in an open state, the movable door 3 is opened at the same time, thereby increasing the gap between the electromagnetic shielding frame 2 and the centralized high-frequency circuit board 9, making it convenient for the staff to repair and rectify the centralized high-frequency circuit board 9;

[0027] Depend on Figure 3 It can be seen that two second driving components 5 for driving the rotating rod 13 to rotate are provided on the left side of the electromagnetic shielding frame 2. The second driving component 5 includes a second electric push rod 501 installed on the electromagnetic shielding frame 2, a rack 502 installed on the telescopic rod of the second electric push rod 501, and a gear 503 meshing with the rack 502. One end of the rotating rod 13 passes through the electromagnetic shielding frame 2 and is connected to the gear 503. The first electric push rod 401 is electrically connected to the second electric push rod 501. The driving directions of the first electric push rod 401 and the second electric push rod 501 are kept synchronous and consistent. Starting the second electric push rod 501 can realize the control of the two movable doors 3. Since the driving directions of the first electric push rod 401 and the second electric push rod 501 are the same;

[0028] It should be noted that when the first electric push rod 401 drives the electromagnetic shielding frame 2 to move upward, the electromagnetic shielding frame 2 opens, and at the same time, the second electric push rod 501 drives the rack 502 to move upward, so that the two gears 503 and the movable door 3 flip inward, and the movable door 3 opens; conversely, when the first electric push rod 401 drives the electromagnetic shielding frame 2 to move downward, the electromagnetic shielding frame 2 is closed, and at the same time, the second electric push rod 501 drives the rack 502 to move downward, so that the two gears 503 and the movable door 3 flip outward, and the movable door 3 closes; through the synchronous control of the first electric push rod 401 and the second electric push rod 501, it is convenient to control the movable door 3, so that the movable door 3 can move synchronously with the electromagnetic shielding frame 2 more accurately, thereby improving the practicality of the electromagnetic shielding frame 2 ; It should be further explained that, in actual application, in order to prevent the bottom of the movable door 3 from hitting the centralized high-frequency circuit board 9 when it is opened, the length, width and height of the centralized high-frequency circuit board can be adjusted according to actual conditions, and the length, width and height of the electromagnetic shielding frame 2 can also be set according to the size of the centralized high-frequency circuit board 9. The extension and retraction speeds of the first electric push rod 401 and the second electric push rod 501 can also be set by the controller 6 described below. When the electromagnetic shielding frame 2 moves up, the extension speed of the first electric push rod 401 is greater than the extension speed of the second electric push rod 501, and when the electromagnetic shielding frame 2 moves down, the contraction speed of the first electric push rod 401 is less than the contraction speed of the second electric push rod 501.

[0029] See also Figure 1 and Figure 2 A field strength monitor 7 for real-time monitoring of the shielding condition of the electromagnetic shielding frame 2 and an alarm 8 located on the side of the field strength monitor 7 are provided in the middle position of the top side of the electromagnetic shielding frame 2. A controller 6 located on the left side of the electromagnetic shielding frame 2 is provided on the substrate 1. The controller 6 is electrically connected to the field strength monitor 7 and the alarm 8 respectively, and the first electric push rod 401 and the second electric push rod 501 are both electrically connected to the controller 6; specifically, the field strength monitor 7 monitors the field strength outside the electromagnetic shielding frame 2. When the electromagnetic shielding frame 2 switches from the open state to the closed state, the field strength monitor 7 can judge the shielding effect and display it on the controller 6. The larger the shielding attenuation value, the better the shielding effect; at the same time, when the electromagnetic shielding frame 2 is in the closed state, when the value monitored by the field strength monitor 7 changes, the field strength monitor 7 will send a signal to the controller 6, and the controller 6 will be electrically connected to the alarm 8 and start the alarm 8 to alarm, and the controller 6 will also send an alarm signal to the mobile terminal of the staff to notify the staff to come for inspection as soon as possible.

[0030] The present invention blocks external electromagnetic radiation through the electromagnetic shielding frame 2, thereby keeping the centralized high-frequency circuit board 9 in a sealed and interference-free state, and can keep the use state of the centralized high-frequency circuit board 9 stable. The shielding condition of the electromagnetic shielding frame 2 can be monitored in real time through the field strength monitor 7, thereby improving the anti-interference ability of the centralized high-frequency circuit board 9.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An anti-interference centralized high-frequency circuit element, comprising a substrate (1), characterized in that: The substrate (1) is provided with a centralized high-frequency circuit board (9), the outer surface of the centralized high-frequency circuit board (9) is provided with an electromagnetic shielding frame (2) located on the substrate (1), and the substrate (1) is provided with a first driving component (4) located on both sides of the electromagnetic shielding frame (2) and used for driving the electromagnetic shielding frame (2) to move up and down; The two sides of the electromagnetic shielding frame (2) away from the first driving assembly (4) are both connected to movable doors (3) through rotating rods (13); the side of the electromagnetic shielding frame (2) close to one of the first driving assemblies (4) is provided with two second driving assemblies (5) for driving the rotating rod (13) to rotate; the top side of the electromagnetic shielding frame (2) is provided with a field strength monitor (7) for real-time monitoring of the shielding condition of the electromagnetic shielding frame (2) and an alarm (8) located on the side of the field strength monitor (7); the base plate (1) is provided with a controller (6) located on the side of the electromagnetic shielding frame (2); the controller (6) is electrically connected to the field strength monitor (7) and the alarm (8) respectively.

2. The anti-interference centralized high-frequency circuit element according to claim 1, characterized in that: The substrate (1) is provided with a rectangular groove (10) located on the peripheral side of the centralized high-frequency circuit board (9) and matching the shape of the bottom side of the electromagnetic shielding frame (2); the bottom side of the electromagnetic shielding frame (2) can be inserted into the rectangular groove (10).

3. The anti-interference centralized high-frequency circuit element according to claim 1, characterized in that: The first driving assembly (4) comprises a first electric push rod (401), a fixing plate (402) mounted on a telescopic rod of the first electric push rod (401), and a fixing connecting frame (403) connected to the fixing plate (402), wherein the side of the fixing connecting frame (403) away from the fixing plate (402) is connected to the electromagnetic shielding frame (2).

4. The anti-interference centralized high-frequency circuit element according to claim 1, characterized in that: The electromagnetic shielding frame (2) is provided with a notch (11) corresponding to the movable door (3), and a limiting area (14) located inside the electromagnetic shielding frame (2) is provided on the side of the notch (11). When the movable door (3) is in a closed state, it is located exactly inside the limiting area (14).

5. The anti-interference centralized high-frequency circuit element according to claim 2, characterized in that: The bottom sides of the electromagnetic shielding frame (2) and the movable door (3) are both provided with electromagnetic sealing gaskets (12), and the shapes formed by the electromagnetic sealing gaskets (12) on the bottom sides of the electromagnetic shielding frame (2) and the electromagnetic sealing gaskets (12) on the bottom sides of the movable door (3) match the shape of the rectangular groove (10).

6. The anti-interference centralized high-frequency circuit element according to claim 3, characterized in that: The second driving assembly (5) comprises a second electric push rod (501) mounted on the electromagnetic shielding frame (2), a rack (502) mounted on the telescopic rod of the second electric push rod (501), and a gear (503) meshing with the rack (502); one end of the rotating rod (13) passes through the electromagnetic shielding frame (2) and is connected to the gear (503).

7. The anti-interference centralized high-frequency circuit element according to claim 6, characterized in that: The first electric push rod (401) and the second electric push rod (501) are both electrically connected to the controller (6), and the first electric push rod (401) is electrically connected to the second electric push rod (501), and the driving directions of the first electric push rod and the second electric push rod are kept synchronous and consistent.

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