Electromagnetic compatibility test device and method of using the same

Abstract

An electromagnetic compatibility test device, comprising a shell, a placement table, a transmitting antenna and a base bracket; the bottom of the shell is connected to the tops of the two base brackets, the top of the left base bracket is connected to the bottom of the placement table through a connector, a radio wave intensity monitor is provided on the top of the placement table, the top of the right base bracket is connected to the bottom of the transmitting antenna through a connector, the right end of the shell is connected to the inflation end of an air pump through a pipe, and one end of the transmitting antenna is connected to the transmitting antenna control box through a connecting line. The inner aluminum foil of the shell of this design can effectively reflect radio waves, and most of the radio waves that are not directed to the test object will definitely pass through the second focus of the ellipse after reflection, thereby increasing the radio wave intensity at the test object, which can effectively reduce the transmission power required by the antenna, will not cause radio wave dispersion, and can suppress the impact of the escaped radio waves on the external environment of the device.

Description

Technical Field

[0001] The invention relates to an improvement of an anti-interference radio test technology, belongs to the field of electromagnetic compatibility, and in particular to an electromagnetic compatibility test device and a use method thereof. Background Art

[0002] At present, in the field of electromagnetic compatibility testing, anti-interference radio testing is a common test item. In order to prevent the antenna radio waves, which are the source of interference signals, from causing harm to the surrounding people and equipment, the test is usually carried out in a vast unmanned field or in a specially built radio darkroom. Although this approach can avoid harm to the environment, suitable test sites are limited, and the test often cannot be carried out in time due to queuing. At the same time, when field tests must be carried out, it is necessary to find and plan a vast unmanned field in advance, which will incur additional site costs and energy investment. In addition, the longer the wavelength, the weaker the directivity of the radio wave, and a large amount of energy dissipates around the environment in the form of radio waves. For this reason, the radio darkroom usually uses a wedge structure and absorbing materials to suppress the dissipated radio waves. The actual radio wave intensity at the test object is much lower than the power emitted by the antenna, which is a huge waste.

[0003] A Chinese invention patent with application number CN202011119807.9 and application date October 19, 2020, discloses a detection test device suitable for electromagnetic compatibility of industrial robots. The patent adjusts the horizontal position of a small spectrum analyzer through a telescopic component, and a sliding component arranged inside the electromagnetic compatibility detection platform to achieve subtle adjustment of the position of the small spectrum analyzer to adapt to different angles of detection of the drive motor to be detected, thereby improving the detection efficiency. However, the directionality of radio waves is weak, and a large amount of energy will still dissipate to the surrounding environment in the form of radio waves.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem of radio wave dissipation and waste in the prior art, and to provide an electromagnetic compatibility test device for radio wave concentration and a method for using the same.

[0006] To achieve the above objectives, the technical solution of the present invention is: an electromagnetic compatibility test device, the electromagnetic compatibility test device comprises a housing, a placement table, a transmitting antenna and a base bracket;

[0007] The bottom of the shell is connected to the tops of the two base brackets, the top of the left base bracket is connected to the bottom of the placement table through a connecting piece, a radio wave intensity monitor is provided on the top of the placement table, the top of the right base bracket is connected to the bottom of the transmitting antenna through a connecting piece, the right end of the shell is connected to the inflation end of the inflation pump through a pipe, and one end of the transmitting antenna is connected to the transmitting antenna control box through a connecting line.

[0008] The shell comprises a reflective layer and a base layer, the outer side of the reflective layer is connected to the inner side of the base layer, the reflective layer is made of aluminum foil, and the base layer is made of conductive rubber.

[0009] The shell is provided with an airtight zipper, which makes the shell in a sealed state.

[0010] The shell includes an aviation socket, two aviation sockets and an inflation connector. The aviation socket and the two aviation sockets are respectively embedded in the left and right ends of the shell. An inflation connector is provided on the side of the shell below the two aviation sockets. The inflation connector is connected to the inflation pump through a pipeline. A plurality of connection holes for fixing are provided at the bottom of the shell.

[0011] The connecting piece comprises two flat nuts and a screw rod, one end of the screw rod is penetrated and arranged on the outer shell, and the two flat nuts are located on the inner wall and the outer side of the outer shell and are threadedly connected with the screw rod.

[0012] The base bracket includes a support and a connecting sleeve, the top of the support is connected to the bottom of the connecting rod, the top of the connecting rod is connected to the bottom of the inclined rod, and the top of the inclined rod is connected to the bottom of the connecting sleeve.

[0013] The bottom of the oblique rod and the top of the connecting rod are hinged via an articulated seat, and the movable angle between the oblique rod and the connecting rod is between zero and one hundred and eighty degrees.

[0014] A method for using an electromagnetic compatibility test device, the method comprising the following steps:

[0015] Step 1: Open the airtight zipper, install the connector at the bottom of the shell, and then gradually install the components inside the shell;

[0016] Step 2: Connect the control cable of the test object and the radio wave strength monitor to an aviation socket through an aviation plug, connect the control cable of the transmitting antenna to a second aviation socket through an aviation plug, and then install and connect the external cables and air pipes;

[0017] Step 3: Close the airtight zipper of the shell, and use an air pump to inflate the shell through the inflation connector to expand it until it is full;

[0018] Step 4: Place the test object on the placement table and operate the external transmitting antenna control box to carry out the electromagnetic compatibility anti-radio interference test.

[0019] The connection holes on the shell and the placement platform, the transmitting antenna and the bottom bracket are assembled and disassembled in the form of threaded fastening. After installation and fastening, the positions of the placement platform and the transmitting antenna are fixed at the spatial positions of the two foci of the elliptical cavity.

[0020] Placing the test object on the placement table specifically includes placing the test object at the second focus of the housing and detecting its electromagnetic changes through an electric wave intensity monitor.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In an electromagnetic compatibility test device and its use method of the present invention, the bottom of the shell is connected to the top of two base brackets, the top of the base bracket on the left is connected to the bottom of the placement table through a connector, the shell includes a reflective layer and a base layer, the reflective layer is made of aluminum foil, and the base layer is made of conductive rubber. After the shell is filled with air, the shell expands, and its internal cavity is elliptical. The inner aluminum foil of the shell can effectively reflect radio waves. Because of the geometric characteristics of the ellipse, most of the radio waves that are not directed to the test object will pass through the second focus of the ellipse after reflection, thereby increasing the radio wave intensity at the test object, which can effectively reduce the transmission power required by the antenna and will not cause radio wave dissipation. In addition, the outer layer of the shell is made of conductive rubber material, which can suppress the impact of the escaped radio waves on the external environment of the device. Therefore, the design has concentrated radio waves and stronger power.

[0023] 2. In an electromagnetic compatibility test device and its use method of the present invention, the shell includes an aviation socket, two aviation sockets and an air charging connector. The aviation socket and the two aviation sockets are respectively embedded on the left and right ends of the shell. The side of the shell is located below the two aviation sockets and is provided with an air charging connector. The air charging connector is connected to the air pump through a pipeline. The bottom of the shell is provided with a plurality of connection holes for fixing. The assembly structure is adopted. The components are connected by threads, aviation plugs or cable pipelines, which can realize quick disassembly and assembly, and are easy to temporarily build. The shell is made of soft rubber material with an inner layer of aluminum foil. After the air is exhausted by pulling the airtight zipper, it can be folded for storage, which can greatly save storage space and is easy to move and transport. Therefore, this design is easy to install and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a side view of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the shell in the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the reflective layer in the present invention.

[0028] Figure 5 It is a structural schematic diagram of the connecting piece in the present invention.

[0029] Figure 6 It is a side view of the base support in the present invention.

[0030] Figure 7 It is a bottom view of the present invention.

[0031] In the figure: an outer shell 1, a reflective layer 101, a base layer 102, an aviation socket 103, a second aviation socket 104, an inflation joint 105, an airtight zipper 106, a connecting hole 107, a placement table 2, a transmitting antenna 3, a connector 4, a flat nut 41, a screw 42, a base bracket 5, a support 51, a connecting rod 52, a diagonal rod 53, a connecting sleeve 54, a transmitting antenna control box 6, an air pump 7, and a radio wave intensity monitor 8. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figures 1 to 7 , an electromagnetic compatibility test device, the electromagnetic compatibility test device comprises a housing 1, a placement table 2, a transmitting antenna 3 and a base bracket 5;

[0034] The bottom of the shell 1 is connected to the tops of two base brackets 5. The top of the left base bracket 5 is connected to the bottom of the placement table 2 through a connector 4. A radio wave intensity monitor 8 is provided on the top of the placement table 2. The top of the right base bracket 5 is connected to the bottom of the transmitting antenna 3 through a connector 4. The right end of the shell 1 is connected to the inflation end of the inflation pump 7 through a pipe, and one end of the transmitting antenna 3 is connected to the transmitting antenna control box 6 through a connecting line.

[0035] The housing 1 includes a reflective layer 101 and a base layer 102 . The outer side of the reflective layer 101 is connected to the inner side of the base layer 102 . The reflective layer 101 is made of aluminum foil, and the base layer 102 is made of conductive rubber.

[0036] The housing 1 is provided with an airtight zipper 106 , which makes the housing 1 sealed.

[0037] The shell 1 includes an aviation socket 103, two aviation sockets 104 and an inflation connector 105. The aviation socket 103 and the two aviation sockets 104 are respectively embedded in the left and right ends of the shell 1. The side of the shell 1 is located below the two aviation sockets 104 and an inflation connector 105 is provided. The inflation connector 105 is connected to the inflation pump 7 through a pipeline. The bottom of the shell 1 is provided with a plurality of connection holes 107 for fixing.

[0038] The connecting member 4 includes two flat nuts 41 and a screw rod 42 . One end of the screw rod 42 is disposed through the housing 1 . The two flat nuts 41 are located on the inner wall and the outer wall of the housing 1 and are threadedly connected with the screw rod 42 .

[0039] The base bracket 5 includes a support 51 and a connecting sleeve 54 . The top of the support 51 is connected to the bottom of the connecting rod 52 . The top of the connecting rod 52 is connected to the bottom of the inclined rod 53 . The top of the inclined rod 53 is connected to the bottom of the connecting sleeve 54 .

[0040] The bottom of the inclined rod 53 and the top of the connecting rod 52 are hinged via a hinge seat, and the movable angle between the inclined rod 53 and the connecting rod 52 is between zero and one hundred and eighty degrees.

[0041] A method for using an electromagnetic compatibility test device, the method comprising the following steps:

[0042] Step 1: Open the airtight zipper 106, install the connector 4 at the bottom of the housing 1, and then gradually install various components inside the housing 1;

[0043] Step 2: Connect the control cable of the test object and the radio wave intensity monitor 8 to the first aviation socket 103 through the aviation plug, connect the control cable of the transmitting antenna 3 to the second aviation socket 104 through the aviation plug, and then install and connect the external cables and air pipes;

[0044] Step 3: Pull up the airtight zipper 106 of the housing 1, and use the air pump 7 to inflate the housing 1 through the inflatable connector 105 to inflate it until it is full;

[0045] Step 4: Place the test object on the placement table 2, and operate the external transmitting antenna control box 6 to carry out the electromagnetic compatibility anti-radio interference test.

[0046] The connection hole 107 on the housing 1 is fastened with the placement platform 2, the transmitting antenna 3 and the bottom bracket 5 by threaded fastening. After installation and fastening, the placement platform 2 and the transmitting antenna 3 are fixed at the spatial positions of the two foci of the elliptical cavity.

[0047] Placing the test object on the placement table 2 specifically includes placing the test object at the second focus of the housing 1 and detecting its electromagnetic changes through the radio wave intensity monitor 8 .

[0048] Embodiment 1:

[0049] An electromagnetic compatibility test device, comprising a shell 1, a placement table 2, a transmitting antenna 3 and a base bracket 5; the bottom of the shell 1 is connected to the tops of the two base brackets 5, the top of the left base bracket 5 is connected to the bottom of the placement table 2 through a connector 4, a radio wave intensity monitor 8 is provided on the top of the placement table 2, the top of the right base bracket 5 is connected to the bottom of the transmitting antenna 3 through a connector 4, the right end of the shell 1 is connected to the inflation end of an inflation pump 7 through a pipeline, and one end of the transmitting antenna 3 is connected to a transmitting antenna control box 6 through a connecting line.

[0050] A method for using an electromagnetic compatibility test device, the method comprising the following steps:

[0051] Step 1: Open the airtight zipper 106, install the connector 4 at the bottom of the housing 1, and then gradually install various components inside the housing 1;

[0052] Step 2: Connect the control cable of the test object and the radio wave intensity monitor 8 to the first aviation socket 103 through the aviation plug, connect the control cable of the transmitting antenna 3 to the second aviation socket 104 through the aviation plug, and then install and connect the external cables and air pipes;

[0053] Step 3: Pull up the airtight zipper 106 of the housing 1, and use the air pump 7 to inflate the housing 1 through the inflatable connector 105 to inflate it until it is full;

[0054] The outer layer of the shell 1 is made of soft conductive rubber which is not easy to expand and deform, so the inner cavity of the shell 1 forms an inherent elliptical space. The connection hole 107 on the shell 1 and the placement table 2, the transmitting antenna 3 and the bottom bracket 5 are fastened and assembled in the form of threaded fastening. After installation and fastening, the positions of the placement table 2 and the transmitting antenna 3 are fixed at the spatial positions of the two foci of the elliptical cavity.

[0055] Step 4: Place the test object on the placement table 2, and operate the external transmitting antenna control box 6 to carry out the electromagnetic compatibility anti-radio interference test.

[0056] Due to the reflection effect of the aluminum foil inside the housing 1, the radio wave intensity at the test object position will be significantly improved compared with the conventional radio darkroom test environment, thereby achieving a higher intensity anti-radio interference test under the premise of using the same transmission power antenna.

[0057] Embodiment 2:

[0058] Embodiment 2 is substantially the same as Embodiment 1, except that:

[0059] An electromagnetic compatibility test device, the shell 1 includes a reflection layer 101 and a base layer 102, the reflection layer 101 is made of aluminum foil, and the base layer 102 is made of conductive rubber; the shell 1 is provided with an airtight zipper 106, the airtight zipper 106 makes the shell 1 in a sealed state, the shell 1 can be folded at will in an uninflated state, and after being filled with air, the shell 1 expands, and its internal cavity is elliptical; the shell 1 includes an aviation socket 103, two aviation sockets 104 and an inflation joint 105, the aviation socket 103 and the two aviation sockets 104 are respectively embedded on the left and right ends of the shell 1, and the side of the shell 1 is located below the two aviation sockets 104. The inflation joint 105 is connected to the inflation pump 7 through a pipeline, and a plurality of connection holes 107 for fixing are opened at the bottom of the shell 1, and the aviation plugs and joint gaps on the shell 1 are all adhesively air-sealed.

[0060] Embodiment 3:

[0061] Embodiment 3 is substantially the same as Embodiment 2, except that:

[0062] An electromagnetic compatibility test device, the connecting piece 4 includes two flat nuts 41 and a screw 42, one end of the screw 42 is penetrated and arranged on the shell 1, the two flat nuts 41 are located on the inner wall and the outer side of the shell 1 and are threadedly connected with the screw 42, the connecting piece 4 passes through the connecting hole of the shell 1 and uses the threaded fastening method of the flat nuts 41 to fix the screw 42 in the connecting hole 107, the flat nuts 41 respectively located inside and outside the shell 1 can achieve air sealing effect after fastening, the screw 42 is made of plastic material, and the flat nuts 41 are made of rubber material; the base bracket 5 It includes a support 51 and a connecting sleeve 54, the top of the support 51 is connected to the bottom of the connecting rod 52, the top of the connecting rod 52 is connected to the bottom of the inclined rod 53, and the top of the inclined rod 53 is connected to the bottom of the connecting sleeve 54; the bottom of the inclined rod 53 and the top of the connecting rod 52 are hinged through a hinge seat, and the movable angle between the inclined rod 53 and the connecting rod 52 is between zero and one hundred and eighty degrees. The bottom bracket 5 adopts the form of threaded fastening and assembly and disassembly. After installation and fastening, it can ensure that the positions of the placement table 2 and the transmitting antenna 3 are fixed at the spatial positions of the two foci of the elliptical cavity of the shell 1.

[0063] Embodiment 4:

[0064] Embodiment 4 is substantially the same as Embodiment 3, except that:

[0065] A method for using an electromagnetic compatibility test device, wherein placing a test object on a placement table 2 specifically includes: the connection hole 107 on the shell 1 and the placement table 2, the transmitting antenna 3 and the bottom bracket 5 are fastened and assembled in the form of threaded fastening, and after installation and fastening, the positions of the placement table 2 and the transmitting antenna 3 are fixed at the spatial positions of the two foci of the elliptical cavity; placing the test object on the placement table 2 specifically includes: placing the test object at the second focus of the shell 1, and detecting its electromagnetic changes through the radio wave intensity monitor 8.

[0066] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. An electromagnetic compatibility test device, characterized in that The electromagnetic compatibility test device comprises a housing (1), a placement table (2), a transmitting antenna (3) and a base bracket (5); The bottom of the housing (1) is connected to the tops of the two base brackets (5), the top of the left base bracket (5) is connected to the bottom of the placement table (2) through a connector (4), a radio wave intensity monitor (8) is provided on the top of the placement table (2), the top of the right base bracket (5) is connected to the bottom of the transmitting antenna (3) through a connector (4), the right end of the housing (1) is connected to the inflation end of the inflation pump (7) through a pipeline, and one end of the transmitting antenna (3) is connected to the transmitting antenna control box (6) through a connecting line; The housing (1) comprises a reflective layer (101) and a base layer (102), the outer side of the reflective layer (101) is connected to the inner side of the base layer (102), the reflective layer (101) is made of aluminum foil, and the base layer (102) is made of conductive rubber; The outer shell (1) is provided with an airtight zipper (106), and the airtight zipper (106) makes the outer shell (1) in a sealed state; The housing (1) is filled with air to form an elliptical cavity, and after being installed and fastened, the positions of the placement platform (2) and the transmitting antenna (3) are fixed at the spatial positions of the two focal points of the elliptical cavity.

2. The electromagnetic compatibility test device according to claim 1, characterized in that: The housing (1) comprises an aviation socket (103), two aviation sockets (104) and an air charging connector (105); the aviation socket (103) and the two aviation sockets (104) are respectively embedded on the left and right ends of the housing (1); an air charging connector (105) is provided on the side of the housing (1) below the two aviation sockets (104); the air charging connector (105) is connected to the air pump (7) through a pipeline; and a plurality of connection holes (107) for fixing are provided at the bottom of the housing (1).

3. The electromagnetic compatibility test device according to claim 1, characterized in that: The connecting member (4) comprises two flat nuts (41) and a screw rod (42); one end of the screw rod (42) is arranged to penetrate the outer shell (1); and the two flat nuts (41) are located on the inner wall and the outer side of the outer shell (1) and are threadedly connected to the screw rod (42).

4. The electromagnetic compatibility test device according to claim 1, characterized in that: The base support (5) comprises a support (51) and a connecting sleeve (54), the top of the support (51) is connected to the bottom of the connecting rod (52), the top of the connecting rod (52) is connected to the bottom of the inclined rod (53), and the top of the inclined rod (53) is connected to the bottom of the connecting sleeve (54).

5. The electromagnetic compatibility test device according to claim 4, characterized in that: The bottom of the inclined rod (53) and the top of the connecting rod (52) are hinged via a hinge seat, and the movable angle between the inclined rod (53) and the connecting rod (52) is between zero and one hundred and eighty degrees.

6. A method for using the electromagnetic compatibility test device according to claim 1, characterized in that: The method comprises the following steps: Step 1: open the airtight zipper (106), install the connector (4) at the bottom of the housing (1), and then gradually install various components inside the housing (1); Step 2: Connect the control cable of the test object and the radio wave intensity monitor (8) to an aviation socket (103) through an aviation plug, connect the control cable of the transmitting antenna (3) to a second aviation socket (104) through an aviation plug, and then connect the external cables and air pipes; Step 3: Pull up the airtight zipper (106) of the outer shell (1), and use the air pump (7) to inflate the outer shell (1) through the air inflating connector (105) to expand it until it is full; Step 4: Place the test object on the placement table (2), and operate the external transmitting antenna control box (6) to carry out the electromagnetic compatibility anti-radio interference test.

7. The method for using the electromagnetic compatibility test device according to claim 6, characterized in that: The connection hole (107) on the housing (1) and the placement platform (2), the transmitting antenna (3) and the bottom bracket (5) are assembled and disassembled in the form of threaded fastening, so that after installation and fastening, the positions of the placement platform (2) and the transmitting antenna (3) are fixed at the spatial positions of the two foci of the elliptical cavity.

8. The method for using the electromagnetic compatibility test device according to claim 7, characterized in that: Placing the test object on the placement table (2) means placing the test object at the second focus of the housing (1) and detecting its electromagnetic changes through an electric wave intensity monitor (8).

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