High voltage test shield

Abstract

This utility model provides a shielding cover for high-voltage testing, including an upper cover and a lower cover located below the upper cover. The top of the lower cover is provided with a sliding groove, and the lower cover is divided into a left half and a right half. One end of the left half is provided with a hinge to connect to the right half. The upper cover is divided into multiple first shells and multiple second shells. One end of the first shell is provided with a first insert block and the other end is provided with a first insertion hole. One end of the second shell is provided with a second insert block that can connect to the first insertion hole, and the other end is provided with a second insertion hole that can connect to the first insert block. The bottom of both the first shell and the second shell is provided with a slider that matches the sliding groove, and the first shell and the second shell are connected in the sliding groove by the slider. By splitting the lower cover into a left half and a right half, and the upper cover into multiple first shells and second shells, the first shells and the second shells are slidably connected in the sliding groove by the slider, partial disassembly is achieved to meet different testing requirements.

Description

Technical Field

[0001] This utility model relates to the field of shielding covers, and more particularly to shielding covers for high voltage testing. Background Technology

[0002] As a key component in electronic equipment, shielding covers primarily function to reduce or eliminate electromagnetic interference, ensuring the equipment is protected from external electromagnetic waves and preventing electromagnetic waves generated internally from affecting the surrounding environment. Shielding covers are mainly made of metals such as copper, aluminum, or iron, which, due to their excellent conductivity, can effectively reflect and absorb electromagnetic waves. Furthermore, shielding cover designs for testing purposes typically consider portability and ease of use, facilitating rapid setup and disassembly in diverse testing environments.

[0003] A split-type shielding cover, as described in Chinese patent document CN201921938939.7, includes a symmetrically arranged first and second half-covers with their axis of symmetry vertically aligned along their length. The second half-cover has insert plates along its length at both ends near the first half-cover. The first half-cover near the second half-cover has slots that mate with the insert plates, and the insert plates are fixed in these slots by fasteners. In use, the current transformer is first installed into either the first or second half-cover. Then, the insert plates on the second half-cover are inserted into the slots on the first half-cover, and the fasteners are used to secure the plates. This achieves a locking and fixing between the first and second half-covers, thus shielding the current transformer. The split-type structure of this invention facilitates the installation of the current transformer, is convenient and easy to use, and has a wide range of applications.

[0004] However, the above-mentioned patent has certain defects in use. Since the shielding cover can only divide the integrated shielding cover into two independent parts, which are connected by inserts and slots, the design cannot meet the requirements of the test experimental scenario, which requires a completely sealed shielding environment. In some parts that need to be exposed for testing, this design cannot meet the requirements, resulting in limited shielding effect and affecting test accuracy and reliability.

[0005] Therefore, a shielding cover for high-voltage testing is proposed here to solve the problems mentioned above. Utility Model Content

[0006] In order to overcome the limitations of existing technologies where shielding covers cannot be partially disassembled for testing, thus affecting the accuracy of the shielding covers in testing experiments, this utility model provides a shielding cover for high-voltage testing.

[0007] This utility model is achieved using the following technical solution:

[0008] High-voltage test shielding, including

[0009] The upper cover and the lower cover located below the upper cover, the lower cover has a sliding groove at the top and is divided into a left half cover and a right half cover, and the left half cover has a hinge connecting the right half cover at one end.

[0010] The upper cover is divided into multiple first covers and multiple second covers. One end of the first cover is provided with a first insert block and the other end is provided with a first insertion hole. One end of the second cover is provided with a second insert block that can be connected to the first insertion hole and the other end is provided with a second insertion hole that can be connected to the first insert block. The bottom of both the first cover and the second cover is provided with a slider that matches the slide groove, and the first cover and the second cover are connected in the slide groove by the slider.

[0011] As a preferred embodiment of this utility model, a first protrusion is provided at one end of the left half cover, and a second protrusion is provided at the corresponding position of the right half cover, and a positioning bolt is fixedly welded to the second protrusion.

[0012] As a preferred embodiment of this utility model, the first protrusion is embedded with a rotating sleeve, the rotating sleeve is connected to a rotating handle, the rotating handle is provided with a pin plate on its peripheral wall, one end of the pin plate is provided with an opening that matches the positioning bolt, and the pin plate is connected to the positioning bolt through the opening.

[0013] As a preferred embodiment of this utility model, the end of the positioning bolt is provided with a nut, and the nut is used to fix the pin plate.

[0014] As a preferred embodiment of this utility model, both the left half cover and the right half cover are fixedly provided with a lower connection at their bottom.

[0015] As a preferred embodiment of this utility model, the outer surface of the rotating grip is made of an insulating material.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By splitting the lower cover into a left half and a right half, with a hinge connecting the left half to the right half, the lower cover can be opened and closed flexibly. Meanwhile, the upper cover is divided into multiple first and second shells, which are connected by sliders in a sliding groove, allowing for partial disassembly. This can satisfy both full-seal testing and partial testing by installing only a portion of the first and second shells, meeting different testing needs and improving testing accuracy and result reliability.

[0018] 2. The first cover has a first insert block on one side and a first insertion hole on the other end. The second cover has a second insert block on one end and a second insertion hole on the other end. The second cover is connected in sequence with the first insert block and the first insertion hole through the tight fit between the second insert block and the first insertion hole, forming a stable structure.

[0019] 3. By rotating the handle, the pin plate is inserted into the periphery of the positioning screw, and the bolt is used to fix it, so that the left half cover and the right half cover are tightly connected. The operation is simple and efficient during installation and disassembly. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the upper cover of this utility model;

[0022] Figure 3 This is a structural diagram of the lower cover of this utility model;

[0023] Figure 4 This is a structural diagram of the pin plate of this utility model;

[0024] Figure 5 This is a structural diagram of the first and second cover shells of this utility model;

[0025] Figure 6 This is a schematic diagram of the hinge structure of this utility model;

[0026] In the diagram: 1. Upper cover; 11. First cover; 12. Slider; 13. First insert; 14. First insertion hole; 2. Second cover; 21. Second insert; 22. Second insertion hole; 3. Lower cover; 31. Left half cover; 32. Right half cover; 33. Slide groove; 4. Hinge; 5. First protrusion; 6. Second protrusion; 7. Rotating sleeve; 71. Rotating handle; 72. Pin plate; 73. Opening; 8. Positioning bolt; 9. Nut; 10. Lower connection. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figures 1-6 High-voltage test shielding, including:

[0030] The upper cover 1 and the lower cover 3 located below the upper cover 1. The lower cover 3 is provided with a sliding groove 33 at its top end, and the lower cover 3 is divided into a left half cover 31 and a right half cover 32. One end of the left half cover 31 is provided with a hinge 4 to connect to the right half cover 32.

[0031] The upper cover 1 is divided into multiple first covers 11 and multiple second covers 2. One end of the first cover 11 is provided with a first insert block 13 and the other end is provided with a first insert hole 14. One end of the second cover 2 is provided with a second insert block 21 that can be connected to the first insert hole 14 and the other end is provided with a second insert hole 22 that can be connected to the first insert block 13. The bottom of the first cover 11 and the second cover 2 are provided with sliders 12 that match the slide groove 33, and the first cover 11 and the second cover 2 are connected in the slide groove 33 by the sliders 12.

[0032] In this embodiment, an upper cover 1 is provided, and a lower cover 3 is provided at the bottom directly below the upper cover 1. The top of the lower cover 3 is provided with a sliding groove 33. The lower cover 3 is divided into a left half cover 31 and a right half cover 32, and the sliding groove 33 is located at the top of the left half cover 31 and the right half cover 32. A hinge 4 is provided at one end of the left half cover 31, and the left half cover 31 is connected to the right half cover 32 through the hinge 4. The upper cover 1 is divided into multiple first cover shells 11 and multiple second cover shells 2. The first cover shells 11 are tightly fitted to the second cover shells 2, and a first insert is provided at one end of the first cover shell 11. 13. The other end is provided with a first insertion hole 14. One end of the second cover 2 is provided with a second insertion block 21, and the other end is provided with a second insertion hole 22. The second cover 2 is inserted into the first insertion hole 14 through the second insertion block 21 to achieve a tight connection between the first cover 11 and the second cover 2. The slider 12 at the bottom of the first cover 11 and the second cover 2 can be embedded in the sliding groove 33 at the top of the left half cover 31 and the right half cover 32 through the slider 12 to achieve partial disassembly and installation of the upper cover 1 and the lower cover 3.

[0033] Specifically, the left half cover 31 has a first protrusion 5 at one end, and the right half cover 32 has a second protrusion 6 at the corresponding position. The second protrusion 6 is fixedly welded with a positioning bolt 8.

[0034] In this embodiment, the left half cover 31 is provided with a first protrusion 5 at the end away from the hinge 4, and the left half cover 31 is provided with a second protrusion 6 at one end. The second protrusion 6 is fixed at the corresponding position of the right half cover 32, and a positioning bolt 8 is fixedly welded to the outer wall end face of the second protrusion 6.

[0035] Specifically, the first protrusion 5 is embedded with a rotating sleeve 7, and a rotating handle 71 is connected inside the rotating sleeve 7. A pin plate 72 is provided on the peripheral wall of the rotating handle 71. One end of the pin plate 72 is provided with an opening 73 that matches the positioning bolt 8, and the pin plate 72 is connected to the positioning bolt 8 through the opening 73.

[0036] In this embodiment, a rotating sleeve 7 is embedded in the outer wall end face of the first protrusion 5. A rotating handle 71 is movably connected inside the rotating sleeve 7. A pin plate 72 is provided on the periphery of the rotating handle 71. One end of the pin plate 72 is provided with an opening 73. The opening 73 matches the positioning bolt 8 to achieve precise fixation.

[0037] Specifically, the end of the positioning bolt 8 is provided with a nut 9, and the nut 9 is used to fix the pin plate 72.

[0038] In this embodiment, the end of the positioning bolt 8 is provided with a nut 9 to fasten the pin plate 72. When the rotating handle 71 rotates mechanically, it drives the pin plate 72 to move, and the opening 73 is tightly engaged with the positioning bolt 8. Finally, the nut 9 is used to tighten it, ensuring that the left half cover 31 and the right half cover 32 are firmly connected, which is convenient for installation.

[0039] Specifically, both the left half cover 31 and the right half cover 32 are fixedly provided with a lower connection 10 at their bottom.

[0040] In this embodiment, a lower connection 10 is fixedly provided at the bottom of the inner wall of both the left half cover 31 and the right half cover 32. The function of the lower connection 10 is to connect external electrical equipment.

[0041] Specifically, the outer surface of the rotating grip 71 is made of insulating material.

[0042] In this embodiment, the rotary handle 71 is made of insulating material to ensure operational safety and prevent current from being conducted from the rotary handle 71 to the operator.

[0043] The principle of this utility model is as follows: First, it is necessary to determine the test experiment plan. When a fully enclosed shield is required, the second inserts 21 at one end of multiple second shells 2 are inserted into the first insert holes 14 of the first shell 11. Then, the sliders 12 are embedded into the grooves 33. Subsequently, the left half of the shield 31 is tightly closed with the right half of the shield 32 through the hinge 4. The handle 71 is rotated to drive the pin plate 72 to be embedded into the positioning bolt 8, and the nut 9 is tightened. When a partial installation of the shield is required, the corresponding number of the second shells 2 and the first shell 11 are selected when installing them. The sliders 12 are embedded into the grooves 33 to achieve partial installation, ensuring flexibility and safety, and meeting the needs of different shield test experiments.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A shield for high voltage testing comprising an upper shield body and a lower shield body located below the upper shield body, characterised in that: The lower cover is provided with a sliding groove at the top, and the lower cover is divided into a left half cover and a right half cover. One end of the left half cover is provided with a hinge to connect to the right half cover. The upper cover is divided into multiple first covers and multiple second covers. One end of the first cover is provided with a first insert block and the other end is provided with a first insertion hole. One end of the second cover is provided with a second insert block that can be connected to the first insertion hole and the other end is provided with a second insertion hole that can be connected to the first insert block. The bottom of both the first cover and the second cover is provided with a slider that matches the slide groove, and the first cover and the second cover are connected in the slide groove by the slider.

2. The high voltage test shield of claim 1, wherein: The left half of the cover has a first protrusion at one end, and the right half of the cover has a second protrusion at the corresponding position. The second protrusion is fixedly welded with a positioning bolt.

3. The high voltage test shield of claim 2, wherein: The first protrusion has a rotating sleeve embedded in it, and a rotating handle is connected inside the rotating sleeve. A pin plate is provided on the peripheral wall of the rotating handle. One end of the pin plate has an opening that matches the positioning bolt, and the pin plate is connected to the positioning bolt through the opening.

4. The high voltage test shield of claim 3, wherein: The positioning bolt has a nut at its end.

5. The high voltage test shield of claim 4, wherein: Both the left and right halves of the cover are fixedly connected at the bottom.

6. The shielding cover for high-voltage testing according to claim 5, characterized in that: The outer surface of the rotating grip is made of insulating material.

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