A transportable radio frequency anechoic chamber

Abstract

The utility model relates to a movable radio frequency anechoic chamber. The utility model discloses a box body, the box body is assembled by the module of detachable, and the inner surface of box body is provided with the lining, and the inner surface of lining is provided with the wave -absorbing cotton, and forms a quiet zone that the electromagnetic environment meets the test needs of the product to be measured, and the front of box body is provided with the anechoic chamber door, and the inner surface of anechoic chamber door is provided with lining and wave -absorbing cotton in proper order, and the side of box body is provided with the signal interface board, and a plurality of sockets are provided on the signal interface board, and the socket is provided with the filter, and the bottom of box body is provided with a plurality of self -locking trundle. The utility model has the advantages of convenient transportation, movable, low cost.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency signal testing, and in particular to a portable radio frequency anechoic chamber for testing the electromagnetic compatibility characteristics of electronic products and the radiation parameters of antenna products. Background Technology

[0002] Testing the electromagnetic compatibility (EMC) characteristics of electronic products and the radiation parameters of antenna products requires an anechoic chamber. The primary function of this chamber is to prevent interference from external electromagnetic waves, ensuring that measurements are unaffected by the external electromagnetic environment and preventing test signals from radiating outwards and creating interference sources that could pollute the electromagnetic environment and cause interference to other electronic equipment. Traditional anechoic chambers use a seamless welded structure to form a complete sealed shell, constructed entirely of steel. This type of structure and material results in high cost, large size, and inconvenient transportation. Summary of the Invention

[0003] To address the aforementioned technical problems in the background art, this utility model provides a portable radio frequency anechoic chamber for testing the electromagnetic compatibility characteristics of electronic products and the radiation parameters of antenna products, which has the advantages of convenient transportation, portability, and low cost.

[0004] The technical solution of this utility model is as follows: This utility model is a portable radio frequency anechoic chamber, which is characterized in that: the portable radio frequency anechoic chamber includes a box, which is assembled on-site from detachable modules. The inner surface of the box is provided with a liner, and the inner surface of the liner is provided with wave-absorbing cotton to form a quiet zone with an electromagnetic environment that meets the testing requirements of the product under test; an anechoic chamber door is provided on one side of the box, and the inner surface of the anechoic chamber door is provided with a liner and wave-absorbing cotton in sequence; a signal interface board is provided on the side of the box.

[0005] Furthermore, the enclosure is assembled from components made of steel plates or galvanized plates.

[0006] Furthermore, the enclosure includes a left front panel assembly, a left side panel assembly, a left rear panel assembly, a rear panel assembly, a top panel assembly, a right rear panel assembly, a right side panel assembly, a right front panel assembly, a front panel assembly, and a bottom panel assembly. The left and right side panels are respectively positioned above the left and right sides of the bottom panel assembly. The left, front, and right front panel assemblies are positioned above the front of the bottom panel assembly. The left and right front panel assemblies are positioned on the left and right sides of the front panel assembly. The darkroom door is positioned on the front panel assembly. The left, rear, and right rear panel assemblies are positioned above the rear of the bottom panel assembly. The left and right rear panel assemblies are positioned on the left and right sides of the rear panel assembly. The top panel assembly is positioned on top of the left and right side panels.

[0007] Furthermore, an opening is provided in the middle of the front panel assembly of the enclosure, and a darkroom door is located at the opening. The top of the darkroom door is connected to the top of the opening via a hinge, and a door lock is provided between the bottom of the darkroom door and the bottom of the opening. Conductive sealing strips are provided on all four sides of the darkroom door.

[0008] Furthermore, hooks and climbing rings are installed above the front panel assembly of the enclosure, and door handles and hooks are installed on the darkroom door.

[0009] Furthermore, the inner lining is made of galvanized iron or aluminum sheet, and the joints are sealed with aluminum foil.

[0010] Furthermore, a support frame is installed at the bottom of the box, which is used to place the product to be tested.

[0011] Furthermore, a test probe is installed at the top of the enclosure, located above the support frame, and is connected to external test instruments via a signal interface board.

[0012] Furthermore, the signal interface board is equipped with multiple sockets, and filters are installed on the sockets.

[0013] Furthermore, the bottom of the box is equipped with self-locking casters, multiple of which are symmetrically arranged at the four corners of the bottom of the box.

[0014] This utility model provides a portable radio frequency anechoic chamber with an inner lining on the inner surface of the chamber. The inner surface of the lining is lined with wave-absorbing cotton. The lining is made of galvanized iron or aluminum sheet, and the joints are sealed with aluminum foil to shield electromagnetic waves. The wave-absorbing cotton absorbs electromagnetic waves and prevents them from being reflected inside, forming a quiet zone with an electromagnetic environment that meets the testing requirements of the product under test. The chamber is composed of components made of steel plate or galvanized plate and is assembled on-site, which greatly reduces the production cost of the anechoic chamber. Moreover, the components are small in size and easy to transport. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the darkroom door of this utility model;

[0018] Figure 4 This is a schematic diagram of the signal interface board of this utility model;

[0019] Figure 5 This is a schematic diagram of a specific application embodiment of the present invention.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Enclosure; 2. Lining; 3. Absorbing cotton; 4. Casters; 5. Darkroom door; 6. Support frame; 7. Product under test; 8. Test probe; 9. Signal interface board; 10. Tester; 11. Hanging buckle and carabiner; 12. Hinge; 13. Door handle; 14. Hanging ring; 15. Door lock; 16. Socket;

[0022] 101. Left front panel assembly of the enclosure; 102. Left side panel assembly of the enclosure; 103. Left rear panel assembly of the enclosure; 104. Rear panel assembly of the enclosure; 105. Top panel assembly of the enclosure; 106. Right rear panel assembly of the enclosure; 107. Right side panel assembly of the enclosure; 108. Right front panel assembly of the enclosure; 109. Front panel assembly of the enclosure; 110. Bottom panel assembly of the enclosure. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] See Figures 1 to 5 The structure of this utility model includes a housing 1, which is assembled on-site from components made of steel plate or galvanized sheet. The inner surface of the housing 1 is lined with a lining 2, which is made of galvanized iron or aluminum sheet, and the joints are sealed with aluminum foil. The inner surface of the lining 2 is lined with wave-absorbing cotton 3. Multiple self-locking casters 4 are symmetrically arranged at the bottom of the housing 1, allowing the housing 1 to be moved. A darkroom door 5 is located at the front of the housing 1, with the lining 2 and wave-absorbing cotton 3 arranged sequentially on its inner surface. A support frame 6 is located at the bottom of the housing 1, and a test probe 8 is located at the top of the housing 1, positioned above the support frame 6. A signal interface board 9 is located on one side of the housing 1, through which the test probe 8 connects to a test instrument 10. The signal interface board 9 has multiple sockets 16, each with a filter.

[0025] The structure of the box body 1 in a specific embodiment of this utility model includes a left front panel assembly 101, a left side panel assembly 102, a left rear panel assembly 103, a rear panel assembly 104, a top panel assembly 105, a right rear panel assembly 106, a right side panel assembly 107, a right front panel assembly 108, a front panel assembly 109, and a bottom panel assembly 110. The left side panel assembly 102 and the right side panel assembly 107 are respectively disposed on the upper left and right sides of the bottom panel assembly 110, and the left front panel assembly 109 is disposed on the upper front side of the bottom panel assembly. 01. The front panel assembly 109 and the right front panel assembly 108 of the enclosure, the left front panel assembly 101 and the right front panel assembly 108 of the enclosure are respectively located on the left and right sides of the front panel assembly 109. The left rear panel assembly 103, the rear panel assembly 104 and the right rear panel assembly 106 of the enclosure are located above the rear side of the bottom panel assembly 110. The left rear panel assembly 109 and the right rear panel assembly 106 of the enclosure are respectively located on the left and right sides of the rear panel assembly 104. The top panel assembly 105 of the enclosure is located on top of the left side panel assembly 102 and the right side panel assembly 107 of the enclosure. The front panel assembly 109 of the enclosure has an opening in the middle, and the darkroom door 5 is located at the opening. The top of the darkroom door 5 is connected to the top of the opening via a hinge 12. A door lock 15 is located between the bottom of the darkroom door 5 and the bottom of the opening. Conductive sealing strips are provided on all four sides of the darkroom door 5. A hook and a climbing ring 11 are provided above the front panel assembly 109 of the enclosure, and a door handle 13 and a hanging ring 14 are provided on the darkroom door 5.

[0026] The working process of this utility model is as follows: When using this utility model, the box is assembled at the test site. After assembly, the tester places the product under test 7 on the support frame 6. The product under test 7 and the test probe 8 are connected to the test instrument 10 outside the box 1 through the signal interface board 9. After closing the darkroom door 5, the tester can test the product under test 7 through the test instrument 10.

[0027] The content of this utility model and the technical content not specifically described in the above embodiments are the same as the prior art.

[0028] The above are merely specific embodiments disclosed in this utility model, but the scope of protection disclosed in this utility model is not limited thereto. The scope of protection disclosed in this utility model shall be determined by the scope of protection of the claims.

Claims

1. A portable radio frequency anechoic chamber, characterized in that: The movable radio frequency anechoic chamber includes a housing, the inner surface of which is provided with a lining, and the inner surface of the lining is provided with microwave absorbing cotton; an anechoic chamber door is provided on one side of the housing, and the inner surface of the anechoic chamber door is provided with a lining and microwave absorbing cotton in sequence; a signal interface board is provided on the side of the housing.

2. The portable radio frequency anechoic chamber according to claim 1, characterized in that: The enclosure is assembled from components made of steel plates or galvanized plates.

3. The portable radio frequency anechoic chamber according to claim 2, characterized in that: The enclosure includes a left front panel assembly, a left side panel assembly, a left rear panel assembly, a rear panel assembly, a top panel assembly, a right rear panel assembly, a right side panel assembly, a right front panel assembly, a front panel assembly, and a bottom panel assembly. The left and right side panels are respectively positioned above the left and right sides of the bottom panel assembly. The left, front, and right front panels are positioned above the front of the bottom panel assembly. The left and right front panels are positioned on the left and right sides of the front panel assembly. The darkroom door is located on the front panel assembly. The left, rear, and right rear panels are positioned above the rear of the bottom panel assembly. The left and right rear panels are positioned on the left and right sides of the rear panel assembly. The top panel assembly is positioned on top of the left and right side panels.

4. The portable radio frequency anechoic chamber according to claim 3, characterized in that: The front panel assembly of the enclosure has an opening in the middle, and the darkroom door is located at the opening. The top of the darkroom door is connected to the top of the opening via a hinge. A door lock is provided between the bottom of the darkroom door and the bottom of the opening. Conductive sealing strips are provided on all four sides of the darkroom door.

5. The portable radio frequency anechoic chamber according to claim 4, characterized in that: The front panel assembly of the enclosure is equipped with a hook and a climbing ring, and the darkroom door is equipped with a door handle and a hook.

6. The portable radio frequency anechoic chamber according to claim 5, characterized in that: The inner lining is made of galvanized iron or aluminum sheet, and the joints are sealed with aluminum foil.

7. The portable radio frequency anechoic chamber according to any one of claims 1 to 6, characterized in that: A support frame is installed at the bottom of the box.

8. The portable radio frequency anechoic chamber according to claim 7, characterized in that: A test probe is installed at the top of the housing, located above the support frame, and is connected to an external test instrument via a signal interface board.

9. The portable radio frequency anechoic chamber according to claim 8, characterized in that: The signal interface board is provided with multiple sockets, and filters are provided on the sockets.

10. The portable radio frequency anechoic chamber according to claim 9, characterized in that: The bottom of the box is equipped with self-locking casters, and there are multiple casters symmetrically arranged at the four corners of the bottom of the box.

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