A shielded box and cabinet

Abstract

The application provides a shielding box and cabinet, relates to the technical field of shielding test, and comprises a box body, a plurality of joints are arranged on one side surface of a rear end panel of the box body, a test module is arranged outside the box body, the test module is electrically connected with the plurality of joints, an opening is arranged on a front end panel of the box body, a supporting frame for placing a measured product is arranged in the box body in a sliding mode, and the supporting frame slides in or out of the box body through the opening. The supporting frame is driven to slide into the box body, so that the measured product is correspondingly connected with the joints on the rear end panel of the box body, the joints are electrically connected with the test module, the electrical connection between the measured product and the test module is realized, the operation is simple, the connection rate of the measured product and the test module is accelerated, and the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of shielding testing technology, and more specifically, to a shielding box and cabinet. Background Technology

[0002] A shielded enclosure is a sealed chamber used for electromagnetic compatibility (EMC) testing. Through a specially designed structure, it creates an independent electromagnetic isolation environment. Its core function is to block the transmission of electromagnetic waves between the internal equipment and the external environment. This prevents electromagnetic signal leakage from the electronic device under test (DUT) from interfering with the outside world, and also blocks external electromagnetic signals from entering the enclosure and affecting test results. This equipment is widely used in the research, calibration, and certification testing of RF products such as mobile communication devices, Bluetooth modules, and Wi-Fi devices. It effectively improves measurement accuracy and ensures that the testing process complies with electromagnetic radiation regulations.

[0003] The shielded enclosure needs to be connected to testing instruments to test the product under test inside. Existing shielded enclosures require manual connection of numerous terminals to the testing instruments. This increases the workload of connecting the enclosure to the instruments, making the operation cumbersome and prone to errors, leading to incorrect data acquisition and impacting testing efficiency. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of the prior art by providing a shielding box and cabinet, thereby solving the problem that the prior art involves manually connecting a large number of terminals of the shielding box to the test instruments, which is cumbersome and prone to connection errors.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows: In one aspect of this application, a shielding box is provided, including a box body. A plurality of connectors are provided on one side surface of the rear panel of the box body inside the box body. A test module is provided outside the box body. The test module is electrically connected to the connectors on the rear panel of the box body. The front panel of the box body has an opening. A support for placing the product under test is slidably disposed inside the box body. The opening is located in the sliding path of the support. The support is driven to slide toward the rear panel so that the product under test is correspondingly inserted into the connectors on the rear panel.

[0006] Optionally, the shielding box includes a telescopic drive component, which is fixedly connected to the box body, and the movable end of the telescopic drive component is driven to connect with the support frame; the support frame is provided with a cover plate for closing the opening on the side opposite to the rear panel.

[0007] Optionally, the front panel has an extension lug for connection with the cabinet, and a through hole is provided on the extension lug. The through hole is located on the side of the opening. The cover plate has a cover lug that covers the through hole. The movable end of the telescopic drive extends through the through hole and is fixedly connected to the cover lug. Optionally, the bottom of the housing is provided with a slide rail, and the bottom of the support frame is provided with a slide groove. The slide rail and the slide groove are slidably connected so that the product under test can be inserted into the connector by sliding the support frame.

[0008] Optionally, the connector includes a magnetic connector and a plug connector, and the product under test is plugged into the magnetic connector and the plug connector respectively by sliding the support bracket.

[0009] Optionally, a guide is provided inside the housing, which is located beside the connector. The protrusion height of the guide relative to the rear panel is greater than that of the connector relative to the rear panel. The product under test is provided with a corresponding insertion hole. The guide and the insertion hole are engaged to guide the product under test to be inserted into the connector.

[0010] Optionally, a cushioning element is also provided inside the box, located at the bottom of the box. Optionally, the support frame has a bearing station, the product under test is located at the bearing station, a position sensor is installed on the support frame, the position sensor is used to monitor the position of the product under test relative to the bearing station; a cable chain is installed inside the box, and the cable chain is sleeved on the outer periphery of the wiring harness of the position sensor. Optionally, the shielding box also includes a rear fixing plate, which is located on the side of the box away from the front panel and is fixedly connected to the box. A control component is provided on the rear fixing plate, and the control component is electrically connected to the telescopic drive component. In another aspect of this application, a cabinet is provided, including a cabinet body and the aforementioned shielding box, wherein the shielding box is fixedly connected to the cabinet body via a front panel and a rear fixing plate.

[0011] The beneficial effects of this application include: This application provides a shielded box, including a box body. Multiple connectors are provided on one side of the rear panel of the box body, located inside the box. A test module is provided outside the box body, and the test module is electrically connected to the multiple connectors. The front panel of the box body has an opening, and a support bracket for placing the product under test (DUT) is slidably disposed inside the box body. The support bracket slides through the opening inside or outside the box body. By driving the support bracket to slide inwards, the DUT is inserted into the corresponding connectors on the rear panel of the box body. The connectors are electrically connected to the test module, thereby realizing the electrical connection between the DUT and the test module. This method is simple to operate, accelerates the connection speed between the DUT and the test module, and improves testing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is one of the structural schematic diagrams of a shielding box provided in an embodiment of this application; Figure 2 This is a second schematic diagram of the structure of a shielding box provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a cabinet provided in an embodiment of this application.

[0014] Icons: 100-Shielding box; 110-Box body; 111-Rear panel; 112-Front panel; 1121-Opening; 1122-Extension ear; 1122a-Through hole; 113-Connector; 1131-Magnetic connector; 1132-Plug connector; 114-Box buckle; 120-Support bracket; 121-Cover plate; 1211-Cover ear; 130-Telescopic drive component; 140-Slide rail; 150-Guide component; 160-Buffer component; 170-Drag chain; 180-Rear fixing plate; 181-Control component; 182-Filter; 183-Power socket; 184-Inflation port; 185-Adjustment knob; 200-Rack; 210-Cabinet body; 300-Product under test; 310-Magnetic connector; 320-Plug interface; 330-Socket. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] One aspect of the embodiments of this application, such as Figure 1 As shown, a shielded box 100 is provided, including a box body 110. A plurality of connectors 113 are provided on one side surface of the rear panel 111 of the box body 110 inside the box body 110. A test module is provided outside the box body 110. The test module is electrically connected to the connectors 113 on the rear panel 111 of the box body 110. The front panel 112 of the box body 110 has an opening 1121. A support bracket 120 for placing a product under test 300 is slidably disposed inside the box body 110. The opening 1121 is located in the sliding path of the support bracket 120. The support bracket 120 is driven to slide toward the rear panel 111 so that the product under test 300 is correspondingly inserted into the connectors 113 on the rear panel 111.

[0021] Specifically, the shielded enclosure 100 includes an enclosure 110 and a test module disposed outside the enclosure 110. It should be noted that the test module is disposed as follows: Figure 1 The test module is located inside the shielded enclosure 100, while the enclosure 110 is external. In other words, the test module is integrated inside the shielded enclosure 100. Multiple connectors 113 are provided on the rear panel 111 of the enclosure 110; specifically, the multiple connectors 113 are located on the side of the rear panel 111 facing the interior of the enclosure 110. The test module is electrically connected to the multiple connectors 113. The front panel 112 of the enclosure 110 has an opening 1121. A support bracket 120 is provided inside the enclosure 110. The support bracket 120 is slidably connected to the enclosure 110 and is used to support the product under test 300. The support bracket 120 slides through the opening 1121 inside or outside the enclosure 110.

[0022] When the product under test (DUT) 300 needs to be tested, the drive support 120 slides from inside the housing 110 through the opening 1121 to the outside of the housing 110. The DUT 300 is placed on the support 120, and the drive support 120 slides inward toward the rear panel 111 of the housing 110, so that the DUT 300 is plugged into the corresponding connectors 113 on the rear panel 111. This achieves electrical connection between the DUT 300 and the test module. By activating the test module, the DUT 300 can be tested. By driving the support 120 to slide inward toward the housing 110, the DUT 300 is plugged into the corresponding connectors 113 on the rear panel 111 of the housing 110. The connectors 113 are electrically connected to the test module, thus achieving electrical connection between the DUT 300 and the test module. This method is simple to operate, speeds up the connection between the DUT 300 and the test module, and improves testing efficiency.

[0023] After the product under test (DUT) 300 completes testing, the support bracket 120 carrying the DUT 300 is slid outward from the housing 110. By moving the support bracket 120 away from the rear panel 111 of the housing 110, the DUT 300 is disconnected from the multiple connectors 113, thus severing the electrical connection with the test module. The support bracket 120 then slides outside the housing 110 through the opening 1121, removing the DUT 300 from the support bracket 120, completing the test. By driving the support bracket 120 outward from the housing 110, the DUT 300 is disconnected from the connectors 113 on the rear panel 111 of the housing 110. Since the connectors 113 are electrically connected to the test module, this disconnection speeds up the disconnection process. When multiple DUTs 300 need to be tested, this accelerated connection or disconnection speed improves testing efficiency.

[0024] Optionally, such as Figure 1 As shown, the shielding box 100 includes a telescopic drive component 130, which is fixedly connected to the box body 110. The movable end of the telescopic drive component 130 is driven to connect with the support frame 120. The support frame 120 is provided with a cover plate 121 for covering the opening 1121 on the side opposite to the rear panel 111.

[0025] Specifically, the shielding box 100 includes a telescopic drive component 130. The fixed end of the telescopic drive component 130 is fixedly connected to the box body 110, and the movable end is drivenly connected to the support frame 120. A cover plate 121 is provided on the side of the support frame 120 away from the rear panel 111, and the cover plate 121 is used to cover the opening 1121.

[0026] When the product under test 300 needs to be tested, the telescopic drive component 130 drives the support bracket 120 to slide from the inside of the housing 110 through the opening 1121 to the outside of the housing 110, placing the product under test 300 on the support bracket 120. The telescopic drive component 130 then drives the support bracket 120 to slide inward toward the inside of the housing 110, that is, toward the rear panel 111 of the housing 110, so that the product under test 300 is plugged into the multiple connectors 113 on the rear panel 111, thus realizing the electrical connection between the product under test 300 and the test module. At this time, the cover plate 121 closes the opening 1121, making the housing 110 a sealed space (a cover is provided on the top of the housing 110, not shown in the figure). The product under test 300 can be tested by starting the test module. After the product under test 300 has been tested, the telescopic drive component 130 drives the support frame 120 carrying the product under test 300 to slide outward from the housing 110. At this time, the cover plate 121 moves away from the opening 1121, and the support frame 120 moves away from the rear panel 111 of the housing 110, so that the product under test 300 is disconnected from the multiple connectors 113, that is, the electrical connection with the test module is disconnected. The support frame 120 slides outside the housing 110 through the opening 1121, and the product under test 300 is removed from the support frame 120, completing the test.

[0027] In some embodiments, at least two telescopic drive members 130 are provided on both sides of the housing 110 respectively. The specific number can also be three, four, five or more, and there is no specific limitation.

[0028] In some embodiments, the telescopic drive 130 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, and no limitation is made here.

[0029] In some embodiments, a buckle 114 is provided on the outer surface of the side wall of the enclosure 110, and the buckle 114 fixes the enclosure 110 and the enclosure cover. The buckle 114 enables the enclosure cover to be closed or opened, facilitating the inspection and maintenance of the interior of the enclosure 110.

[0030] Optionally, such as Figure 1 As shown, the front panel 112 has an extension ear 1122 for connecting to the cabinet 200. A through hole 1122a is provided on the extension ear 1122. The through hole 1122a is located next to the opening 1121. The cover plate 121 has a cover ear 1211 that covers the through hole 1122a. The movable end of the telescopic drive member 130 passes through the through hole 1122a and is fixedly connected to the cover ear 1211. Specifically, the front panel 112 has extension ears 1122, which are located on the left and right sides of the front panel 112 and are used to connect with the cabinet 200. Through holes 1122a are provided on the extension ears 1122, located beside the opening 1121. A cover ear 1211 is provided on the cover plate 121, and the movable end of the telescopic drive component 130 passes through the through hole 1122a and is fixedly connected to the cover ear 1211. When the telescopic drive component 130 drives the support frame 120 to slide into the enclosure 110, the tested product 300 is correspondingly inserted into multiple connectors 113 on the rear panel 111. At this time, the cover plate 121 opens and closes the opening 1121, and the cover ear 1211 closes the through hole 1122a.

[0031] Optionally, such as Figure 1 As shown, the bottom of the housing 110 is provided with a slide rail 140, and the bottom of the support frame 120 is provided with a slide groove. The slide rail 140 and the slide groove are slidably connected so that the product under test 300 can be inserted into the connector 113 through the sliding of the support frame 120.

[0032] Specifically, a slide rail 140 is provided at the bottom of the housing 110, and a slide groove is provided at the bottom of the support frame 120, which is slidably connected to the slide rail 140. It should be noted that the slide rail 140 and the slide groove remain connected at all times. When the telescopic drive component 130 drives the support frame 120 to move into the housing 110, the slide rail 140 and slide groove are slidably connected, allowing the tested product 300 to be inserted into the housing 110 via the slide of the support frame 120 and the corresponding connector 113. When the telescopic drive component 130 drives the support frame 120 to move outward from the housing 110, the slide rail 140 and slide groove are slidably connected, allowing the tested product 300 to be disengaged from the housing 110 via the slide of the support frame 120 and the connector 113.

[0033] Optionally, such as Figure 1 and Figure 2 As shown, connector 113 includes magnetic connector 1131 and plug connector 1132. The product under test 300 is plugged into magnetic connector 1131 and plug connector 1132 respectively by sliding the support bracket 120.

[0034] Specifically, connector 113 includes a magnetic connector 1131 and a plug connector 1132. The product under test (DUT) 300 is provided with a magnetic connector 310 and a plug interface 320, respectively corresponding to the magnetic connector 1131 and plug connector 1132. The telescopic drive component 130 drives the support frame 120 to slide into the housing 110, causing the magnetic connector 310 on the DUT 300 to connect with the magnetic connector 1131, and the plug interface 320 to plug into the plug connector 1132. This allows the DUT 300 to plug into the connector 113 on the rear panel 111 of the housing 110, and the connector 113 to be electrically connected to the test module, thus achieving electrical connection between the DUT 300 and the test module. The magnetic connector 1131 facilitates the automatic attraction of the DUT 300 to the correct position. Simultaneously, the magnetic connection reduces mechanical wear on the connector 113 itself, extending its service life.

[0035] Optionally, such as Figure 1 As shown, a guide 150 is provided inside the housing 110. The guide 150 is located beside the connector 113, and the protrusion height of the guide 150 relative to the rear panel 111 is greater than the protrusion height of the connector 113 relative to the rear panel 111. A socket 330 corresponding to the guide 150 is provided on the product under test 300. The guide 150 and the socket 330 are inserted and cooperated to guide the product under test 300 to be inserted into the connector 113.

[0036] Specifically, a guide 150 is provided inside the housing 110. Specifically, the guide 150 is located beside the connector 113, that is, on the side surface of the rear panel 111 of the housing 110 facing inwards. The length of the guide 150 extending from the rear panel 111 to the front panel is greater than the length of the connector 113 extending from the rear panel 111 to the front panel 112. The product under test 300 is provided with insertion holes 330 corresponding to the guide 150. When the drive support 120 slides into the housing 110, the insertion holes 330 on the product under test 300 first engage with the guide 150 to guide the product under test 300 to the position corresponding to the multiple connectors 113. The support 120 continues to move, allowing the product under test 300 to be inserted into the multiple connectors 113.

[0037] In some embodiments, the guide 150 may be a cylindrical pin or a tapered pin, and no limitation is made here.

[0038] Optionally, such as Figure 2 As shown, a buffer 160 is also provided inside the housing 110, and the buffer 160 is located at the bottom of the housing 110.

[0039] Specifically, a buffer 160 is provided at the bottom of the housing 110, and a baffle is provided at the bottom of the support frame 120. When the drive support frame 120 slides into the housing 110, the product under test 300 is inserted into the multiple connectors 113 on the rear panel 111. At this time, the buffer 160 contacts the baffle to reduce the buffering force when the product under test 300 is inserted into the multiple connectors 113 under the drive of the telescopic drive 130.

[0040] In some embodiments, the buffer 160 may be a rubber buffer, a spring buffer, or a composite buffer, and no limitation is made herein. Optionally, such as Figure 1 As shown, the support frame 120 has a bearing station, and the product under test 300 is located in the bearing station. A position sensor is installed on the support frame 120 to monitor the position of the product under test 300 relative to the bearing station. A cable chain 170 is installed inside the housing 110 and is sleeved around the wire harness of the position sensor. Specifically, a support station for carrying the product under test 300 is provided on the support frame 120. A position sensor is also installed on the support frame 120. By placing the product under test 300 on the support station, the position sensor monitors the position of the product under test 300, ensuring that the position of the product under test 300 corresponds to the multiple connectors 113. A cable chain 170 is installed inside the housing 110. By placing the wiring harness of the position sensor inside the cable chain 170, when the support frame 120 slides inward or outward through the opening 1121 into the housing 110, the cable chain 170 can prevent friction between the wiring harness and the housing 110, and can also guide the wiring harness to reciprocate along a preset trajectory.

[0041] Optionally, such as Figure 2 As shown, the shielding box 100 also includes a rear fixing plate 180. The rear fixing plate 180 is located on the side of the box body 110 away from the front panel 112 and is fixedly connected to the box body 110. A control component 181 is provided on the rear fixing plate 180, and the control component 181 is electrically connected to the telescopic drive component 130. Specifically, the shielding box 100 also includes a rear fixing plate 180, which is fixedly connected to the box body 110 and located on the side of the box body 110 away from the front panel 112. A control component 181 is provided on the side of the rear fixing plate 180 away from the front panel 112. The control component 181 is electrically connected to the telescopic drive component 130, and controls the telescopic movement of the telescopic drive component 130. For example, the control component 181 includes a host computer, a PLC (Programmable Logic Controller), and a solenoid valve. The telescopic drive component 130 is a pneumatic cylinder. The host computer sends instructions to the PLC, which controls the solenoid valve to operate, thereby controlling the flow of gas to achieve the telescopic movement of the pneumatic cylinder.

[0042] In some implementations, such as Figure 2 As shown, a filter 182 is provided on the rear mounting plate 180. The filter 182 is electrically connected to the control component 181. The filter 182 ensures the accuracy of the input signal to the control component 181, thus improving control precision. A power socket 183 is provided on the rear mounting plate 180. The power socket 183 is electrically connected to the control component 181 and the filter 182, allowing the control component 181 and the filter 182 to operate normally by connecting to an external power source. When the telescopic drive component 130 is a pneumatic cylinder, the rear mounting plate 180 is also provided with an air inlet and an adjustment knob 185. The air inlet is connected to the pneumatic cylinder, and an external air source is connected to the pneumatic cylinder through the air inlet to provide gas for the telescopic movement of the pneumatic cylinder. The adjustment knob 185 is used to adjust the normal operation of the pneumatic cylinder.

[0043] Another aspect of the embodiments of this application, such as Figure 2 and Figure 3 As shown, a cabinet 200 is provided, including a cabinet body 210 and the aforementioned shielding box 100. The shielding box 100 is fixedly connected to the cabinet body 210 via a front panel 112 and a rear fixing plate 180.

[0044] Specifically, the cabinet 200 includes a cabinet body 210 and a shielding box 100. The shielding box 100 is fixedly installed inside the cabinet body 210 via an extension lug 1122 on the front panel 112 and a rear fixing plate 180. Multiple workstations are provided inside the cabinet body 210, for example, three or more workstations. Multiple shielding boxes 100 can be fixedly installed at these workstations, allowing multiple products under test (DUTs) 300 to be tested simultaneously through multiple shielding boxes 100. By driving the support bracket 120 to slide into the cabinet body 110, the DUTs 300 are inserted into the connector 113 on the rear panel 111 of the cabinet body 110. The connector 113 is electrically connected to the test module, thus realizing the electrical connection between the DUTs 300 and the test module. This simple operation accelerates the connection speed between the DUTs 300 and the test module, improving testing efficiency.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A shielding box, characterized in that, include: The enclosure has multiple connectors on one side of the rear panel inside the enclosure. A test module is disposed outside the enclosure and is electrically connected to the connectors on the rear panel. The front panel of the enclosure has an opening. A support bracket for placing the product under test is slidably disposed inside the enclosure. The opening is located in the sliding path of the support bracket. The support bracket is driven to slide toward the rear panel so that the product under test is inserted into the connector on the rear panel.

2. The shielding box as described in claim 1, characterized in that, The shielding box includes a telescopic drive component, which is fixedly connected to the box body. The movable end of the telescopic drive component is driven to be connected to the support frame. The support frame has a cover plate on the side opposite to the rear panel for closing the opening.

3. The shielding box as described in claim 2, characterized in that, The front panel has an extension lug for connecting to the cabinet, and a through hole is provided on the extension lug. The through hole is located on the side of the opening. The cover plate has a cover lug that covers the through hole. The movable end of the telescopic drive member passes through the through hole and is fixedly connected to the cover lug.

4. The shielding box as described in any one of claims 1 to 3, characterized in that, The bottom of the housing is provided with a slide rail, and the bottom of the support frame is provided with a slide groove. The slide rail and the slide groove are slidably connected so that the product under test can be inserted into the connector by sliding the support frame.

5. The shielding box as described in any one of claims 1 to 3, characterized in that, The connector includes a magnetic connector and a plug connector. The product under test is slidably connected to the magnetic connector and the plug connector respectively via the support frame.

6. The shielding box as described in any one of claims 1 to 3, characterized in that, The housing is provided with a guide member, which is located beside the connector. The protrusion height of the guide member relative to the rear panel is greater than that of the connector relative to the rear panel. The product under test is provided with an insertion hole corresponding to the guide member. The guide member and the insertion hole are engaged to guide the product under test to be inserted into the connector.

7. The shielding box as described in any one of claims 1 to 3, characterized in that, The box is also equipped with a buffer, which is located at the bottom of the box.

8. The shielding box as described in any one of claims 1 to 3, characterized in that, The support frame has a bearing station, the product under test is located at the bearing station, a position sensor is installed on the support frame, the position sensor is used to monitor the position of the product under test relative to the bearing station; a cable chain is installed inside the box, the cable chain is sleeved on the outer periphery of the wiring harness of the position sensor.

9. The shielding box as described in claim 2, characterized in that, The shielding box also includes a rear fixing plate, which is located on the side of the box away from the front panel and is fixedly connected to the box. A control component is provided on the rear fixing plate, and the control component is electrically connected to the telescopic drive component.

10. A server rack, characterized in that, It includes a cabinet and a shielding box as described in any one of claims 1 to 9, wherein the shielding box is fixedly connected to the cabinet via the front panel and the rear fixing plate.

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