A magnetic shielding shell for electric power equipment
By designing a magnetic shielded shell including sliding columns and limiting parts, the long maintenance time problem caused by repeated disassembly of the magnetic shielded shell in the prior art is solved, and the rapid fixing and removal of electrical appliances is achieved, reducing the impact on the power system.
Patent Information
- Application Number
- CN202510134924.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing magnetic shielded shell needs to be repeatedly disassembled during use, resulting in a long maintenance time for electrical appliances, affecting the normal operation of the power system and causing economic losses.
A magnetic shielded housing including a cabinet, a slide rail, a stage, a sliding column and a limiting member is designed, and the sliding column passes through the through holes on the electrical appliance through the sliding column, and the limiting member extends out of the second slide chute to limit the electrical appliance, so as to achieve rapid fixing and removal.
Through this design, the rapid installation and disassembly of electrical appliances is achieved, which significantly shortens the maintenance time and reduces the impact on the power system.
Smart Images
Figure CN119767660A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power equipment casings, and in particular to a magnetic shielding casing for power equipment. Background Art
[0002] The main purpose of using magnetic shielding enclosures in power equipment is to reduce or eliminate the impact of external magnetic fields on sensitive components inside the equipment, and to prevent the magnetic field generated by the equipment itself from leaking into the surrounding environment, thereby protecting electronic components from interference, ensuring measurement accuracy, and improving system stability and safety. The basic principle of magnetic shielding is to use high magnetic permeability materials to guide magnetic field lines so that they bypass the space that needs to be protected. In this way, the strength of the magnetic field in the area can be effectively reduced. For DC magnetic fields and low-frequency AC magnetic fields, magnetic materials such as iron, nickel or mu metal are usually used because these materials have high magnetic permeability and can attract and redirect magnetic field lines well.
[0003] When the existing magnetic shielding shell is in use, the electrical appliance is fixed therein. When the electrical appliance needs to be repaired and maintained due to a malfunction or other reasons, the magnetic shielding shell needs to be removed, and then the electrical appliance is repaired and maintained on site or replaced. After the maintenance is completed, the electrical appliance is fixed again, and then the magnetic shielding shell is reassembled. This type of shell is repeatedly disassembled and assembled during use, resulting in a long time for the repair and maintenance of the electrical appliance. Therefore, the impact time on the entire power system is also long, affecting the normal operation of the entire power system and causing great economic losses. Summary of the invention
[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a magnetic shielding housing for electric power equipment.
[0005] Technical solution: A magnetic shielding shell for electric power equipment, comprising: A cabinet body, wherein the cabinet body is rotatably connected to a cabinet door; The slide rails have two symmetrically distributed rails, both of which are fixedly connected to the cabinet; The loading platform is slidably connected to the two slide rails, the loading platform is provided with a plurality of first slide grooves, a sliding column is slidably connected in the first slide grooves, an electrical appliance is provided on the loading platform, the electrical appliance is provided with a plurality of through holes, the sliding column is provided with a second slide groove, a limiting member is slidably connected in the second slide groove, and the limiting member and the electrical appliance are pressed against each other.
[0006] Preferably, the sliding column is slidably connected with a sliding ring, a buffer is provided between the sliding ring and the loading platform, and the sliding ring and the electrical appliance are pressed against each other.
[0007] Preferably, the loading platform is fixedly connected to a first shell, a first sliding plate is slidably connected inside the first shell, a first spring is provided between the first sliding plate and the first shell, and all the second sliding grooves are connected to the first shell via a hose.
[0008] Preferably, the first shell is provided with a spring telescopic rod, the telescopic end of the spring telescopic rod is fixedly connected to the first sliding plate, the telescopic end of the spring telescopic rod is slidably connected to the first shell and penetrates it, and a blocking member is fixedly connected to the slide rail close to the first shell.
[0009] Preferably, the loading platform is fixedly connected to a first tension spring telescopic rod, the telescopic end of the first tension spring telescopic rod is fixedly connected to a first limiting rod, the first sliding plate is fixedly connected to a first sliding rod, the first sliding rod is slidably connected to the first shell and penetrates it, and the first limiting rod is used to limit the first sliding rod.
[0010] Preferably, it also includes: A second shell is fixedly connected to the loading platform, and all the first slide slots are connected to the second shell via a hose; The second sliding plate is slidably connected in the second shell.
[0011] Preferably, a second tension spring telescopic rod is fixedly connected in the cabinet, a second sliding plate is fixedly connected to a second sliding rod, the second sliding rod is slidably connected to the second shell and penetrates the second shell, and a telescopic end of the second tension spring telescopic rod is fixedly connected to the second sliding rod.
[0012] Preferably, the first limiting rod is fixedly connected to a second limiting rod, the second limiting rod is slidably connected to the second shell and penetrates the second shell, and the second limiting rod limits the second sliding rod.
[0013] Preferably, the sliding column is slidably connected with a friction block, a second spring is arranged between the friction block and the sliding column, and the friction block and the inner wall of the adjacent through hole on the electrical appliance are pressed against each other.
[0014] Preferably, the friction block is provided with friction material to increase its resistance to the electrical appliance.
[0015] The beneficial effect is that the present invention limits the electrical appliance by allowing the sliding column to pass through the through hole on the electrical appliance, and then the limiting member extends from the adjacent second slide groove, thereby limiting the electrical appliance, thereby achieving rapid fixation of the electrical appliance, and retracting the limiting member into the adjacent second slide groove to release the limiting of the electrical appliance, thereby achieving rapid removal of the electrical appliance, thereby improving the installation and disassembly rate of the electrical appliance in the device during inspection and maintenance, and reducing the impact on the entire power system.
[0016] The movement of the limit member and the sliding column are controlled respectively by the first sliding plate and the second sliding plate, so that the device can release the fixation of the electrical appliance when the loading platform extends out of the cabinet, and fix the electrical appliance when the loading platform enters the cabinet, thereby realizing rapid fixation and disassembly of the electrical appliance, thereby further improving the efficiency of the inspection and maintenance of the electrical appliances in the device.
[0017] The first limiting rod and the second limiting rod are used to limit the first sliding rod and the second sliding rod respectively, so that the limiting member will not release the limit on the appliance when it moves outside the cabinet, thereby preventing the appliance from tipping over due to inertia when the loading platform stops moving. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the slide rail and the loading platform of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the electrical appliance and the limiting member of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the first chute and the second chute of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the first tension spring telescopic rod and the first limiting rod of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the first sliding plate and the spring telescopic rod of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the second sliding rod and the second limiting rod of the present invention.
[0019] In the accompanying drawings: 1-cabinet body, 2-cabinet door, 3-slide rail, 4-loading platform, 401-first slide groove, 5-sliding column, 501-second slide groove, 6-electrical appliance, 7-limiting member, 701-sliding ring, 8-first shell, 9-first sliding plate, 10-spring telescopic rod, 1001-blocking member, 11-first tension spring telescopic rod, 12-first limiting rod, 13-first sliding rod, 14-second shell, 15-second sliding plate, 16-second tension spring telescopic rod, 17-second sliding rod, 18-second limiting rod, 19-friction block. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] Embodiment 1: A magnetic shielding housing for electric power equipment, such as Figure 1-Figure 3 As shown, it includes a cabinet body 1, which is rotatably connected to a cabinet door 2; two slide rails 3 are symmetrically distributed and fixed in the cabinet body 1; a loading platform 4 is slidably connected between the two slide rails 3, the loading platform 4 is provided with a plurality of first slide grooves 401, and a sliding column 5 is slidably connected in the first slide grooves 401, an electrical appliance 6 is provided on the loading platform 4, the electrical appliance 6 is provided with a plurality of through holes, the sliding column 5 is provided with a second slide groove 501, and a limiting member 7 is slidably connected in the second slide groove 501, and the limiting member 7 and the electrical appliance 6 are pressed against each other.
[0022] In the above scheme, the electrical appliance 6 is intended to be quickly installed and removed. The cabinet 1 and the cabinet door 2 are both made of magnetic metal materials to shield the magnetic field. The two slide rails 3 are arranged in parallel. The two slide rails 3 are respectively located on the left and right sides of the cabinet 1. The number of the first slide grooves 401 is the same as the number of through holes on the electrical appliance 6 and corresponds one to one. A seal is arranged between the sliding column 5 and the first slide groove 401. The limiter 7 is composed of a limiter block and a cylinder. A seal is arranged between the cylinder of the limiter 7 and the second slide groove 501.
[0023] like Figure 3 As shown, the sliding column 5 is slidably connected with a sliding ring 701, a buffer is provided between the sliding ring 701 and the loading platform 4, and the sliding ring 701 and the electrical appliance 6 are pressed against each other.
[0024] In the above solution, the purpose is to buffer the electrical appliance 6. The sliding ring 701 is made of hard material to provide a support point for the electrical appliance 6, and the buffering member can be a device such as a shock absorber to buffer the electrical appliance 6 when it vibrates.
[0025] like Figure 5 and Figure 6 As shown, the loading platform 4 is fixedly connected to the first shell 8, a first sliding plate 9 is slidably connected inside the first shell 8, a first spring is arranged between the first sliding plate 9 and the first shell 8, and all the second slide grooves 501 are connected to the first shell 8 through a hose.
[0026] In the above solution, the position of the limiter 7 is adjusted. The first housing 8 and the second slide groove 501 are filled with liquid for transmission, such as hydraulic oil and water, and a seal is provided between the first sliding plate 9 and the first housing 8 .
[0027] like Figure 2 , Figure 5 and Figure 6 As shown, the first shell 8 is provided with a spring telescopic rod 10, the telescopic end of the spring telescopic rod 10 is fixedly connected to the first sliding plate 9, the telescopic end of the spring telescopic rod 10 is slidably connected to the first shell 8 and penetrates it, and a blocking member 1001 is fixedly connected to the slide rail 3 near the first shell 8.
[0028] In the above scheme, the purpose is to delay the movement of the first sliding plate 9. The elastic coefficient of the spring in the spring telescopic rod 10 is greater than the elastic coefficient of the first spring between the first sliding plate 9 and the first housing 8, so that the spring telescopic rod 10 can push the first sliding plate 9 to move a longer distance when it is extended. A sealing member is provided between the spring telescopic rod 10 and the first housing 8, and the blocking member 1001 is used to block the spring telescopic rod 10 when the stage 4 moves outward, so that the spring telescopic rod 10 is shortened and accumulates force.
[0029] like Figure 2 , Figure 5 and Figure 6 As shown, the loading platform 4 is fixedly connected to a first tension spring telescopic rod 11, the telescopic end of the first tension spring telescopic rod 11 is fixedly connected to a first limiting rod 12, the first sliding plate 9 is fixedly connected to a first sliding rod 13, the first sliding rod 13 is slidably connected to the first shell 8 and penetrates it, and the first limiting rod 12 is used to limit the first sliding rod 13.
[0030] In the above scheme, the first sliding plate 9 is limited so as to control the moving time of the first sliding plate 9. The first tension spring telescopic rod 11 is located at the lower side of the loading platform 4, and the first limiting rod 12 clamps the first sliding rod 13 so that the first sliding plate 9 cannot move.
[0031] Working process: when using the device, first place the device at the work place, then open the cabinet door 2, and then pull out the loading platform 4, the loading platform 4 moves forward, the loading platform 4 drives the first shell 8 to move, and the first shell 8 drives the spring telescopic rod 10 to move, when the spring telescopic rod 10 contacts the blocking member 1001, the fixed end of the spring telescopic rod 10 stops moving, at this time the loading platform 4 and the first shell 8 continue to move, and because the first sliding rod 13 is limited by the first limiting rod 12, the first sliding plate 9 will not produce relative to the first shell 8. The first sliding plate 9 moves, so the telescopic end of the spring telescopic rod 10 is squeezed to move backward, so that the spring telescopic rod 10 accumulates force. When the loading platform 4 moves to the limit position, it stops moving, and then the first limiting rod 12 is moved downward. The first limiting rod 12 drives the telescopic end of the first tension spring telescopic rod 11 to move, so that the first tension spring telescopic rod 11 accumulates force. At the same time, the first limiting rod 12 releases the limit on the first sliding rod 13. At this time, the first sliding plate 9 moves backward under the action of the spring telescopic rod 10, and the first sliding plate 9 compresses the adjacent The first spring, when the first sliding plate 9 moves backward, sucks the liquid in the second slide groove 501 into the first shell 8 through the hose, so that the limit member 7 moves into the second slide groove 501, and then installs the electrical appliance 6, uses the through hole of the electrical appliance 6 to align the sliding column 5, and then puts the electrical appliance 6 on the sliding ring 701. After the placement is completed, push the loading platform 4 back, and the loading platform 4 drives the first shell 8 to move. The first shell 8 is farther and farther away from the blocking member 1001, and the fixed part of the spring telescopic rod 10 continues to resist the blocking member 1001. The spring The telescopic end of the telescopic rod 10 moves backward with the first shell 8, so that the spring telescopic rod 10 is gradually reset. As the spring telescopic rod 10 is reset, its elastic force decreases, so the first sliding plate 9 is reset under the action of the adjacent first spring, and the transmission limit member 7 is reset, so that the limit member 7 clamps the electrical appliance 6 for fixation. When the electrical appliance 6 needs to be inspected and maintained, the above steps can be repeated to remove and replace the electrical appliance 6, thereby shortening the time used for installation and disassembly of the electrical appliance 6, and further reducing the impact of the inspection and maintenance of the electrical appliance 6 on the entire power system.
[0032] Example 2: Figure 2 , Figure 5 and Figure 7 As shown, it also includes: a second shell 14 fixedly connected to the loading platform 4, all the first slide grooves 401 are connected to the second shell 14 through a hose; and a second sliding plate 15 slidably connected in the second shell 14.
[0033] In the above scheme, the position of the sliding column 5 is adjusted, so as to adjust the pressure when fixing the electrical appliance 6. The second housing 14 is located at the lower side of the loading platform 4, the first slide groove 401 and the second housing 14 are both filled with liquid, and a seal is provided between the second sliding plate 15 and the second housing 14.
[0034] like Figure 2 , Figure 5 and Figure 7 As shown, a second tension spring telescopic rod 16 is fixedly connected in the cabinet 1 , a second sliding plate 15 is fixedly connected to a second sliding rod 17 , the second sliding rod 17 is slidably connected to the second shell 14 and penetrates it, and the telescopic end of the second tension spring telescopic rod 16 is fixedly connected to the second sliding rod 17 .
[0035] In the above solution, the purpose is to delay the movement of the second sliding plate 15. The second tension spring telescopic rod 16 is located at the rear side of the cabinet 1, and a sealing member is provided between the second sliding rod 17 and the second housing 14.
[0036] like Figure 5 and Figure 7 As shown, the first limiting rod 12 is fixedly connected to the second limiting rod 18 , the second limiting rod 18 is slidably connected to the second housing 14 and penetrates the second housing 14 , and the second limiting rod 18 limits the second sliding rod 17 .
[0037] In the above solution, the second sliding rod 17 is limited. The second limiting rod 18 clamps the second sliding rod 17 so that the second sliding plate 15 cannot move.
[0038] Working process: when the loading platform 4 moves forward, the loading platform 4 drives the second shell 14 to move, and the second shell 14 drives the second limiting rod 18 to move. Since the second limiting rod 18 limits the second sliding rod 17, the second sliding rod 17 moves together and pulls the telescopic end of the second tension spring telescopic rod 16 to move. When the loading platform 4 moves to the limit position, it stops moving, and then moves the second limiting rod 18 downward to release the second limiting rod 18 from limiting the second sliding rod 17. At this time, the telescopic end of the second tension spring telescopic rod 16 starts to reset and pulls the second sliding rod 17 to move backward. The second sliding rod 17 drives the second sliding plate 15 to move, and the second sliding plate 1 5 pushes the liquid in the second housing 14 into all the first slide grooves 401 through the hose, so that all the sliding columns 5 move upward synchronously, and the sliding columns 5 drive the limiter 7 to move upward, so that the limiter 7 reduces the pressure on the electrical appliance 6. When the loading platform 4 moves backward, the telescopic end of the second tension spring telescopic rod 16 cannot continue to move backward, so the second sliding rod 17 and the second sliding plate 15 will not move. At this time, the second housing 14 moves backward, and the liquid in the first slide groove 401 is sucked into the second housing 14, so that the sliding columns 5 move downward, and the sliding columns 5 drive the limiter 7 to move downward, so as to enhance the fixation of the limiter 7 to the electrical appliance 6 and make it more stable.
[0039] Example 3: Figure 4As shown, the sliding column 5 is slidably connected with a friction block 19, a second spring is arranged between the friction block 19 and the sliding column 5, and the friction block 19 and the inner wall of the adjacent through hole on the electrical appliance 6 are pressed against each other. The friction block 19 is provided with friction material to increase its resistance to the electrical appliance 6.
[0040] In the above scheme, the electrical appliance 6 is intended to be pre-fixed, thereby preventing the electrical appliance 6 from tipping over. The second spring between the friction block 19 and the sliding column 5 has a larger elastic coefficient and is initially in a compressed state, so that the friction block 19 has a greater resistance to the electrical appliance 6 to pre-fix it. The friction material on the friction block 19 is arranged on the side thereof in contact with the electrical appliance 6.
[0041] Working process: when the electrical appliance 6 is installed, the through hole of the electrical appliance 6 squeezes the friction block 19, and the friction block 19 compresses the adjacent second spring. Then the through hole of the electrical appliance 6 covers the sliding column 5. At this time, the friction block 19 presses against the inner wall of the through hole on the electrical appliance 6, thereby preliminarily fixing the electrical appliance 6 to prevent shaking when the stage 4 drives the electrical appliance 6 to move.
[0042] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A magnetic shielding shell for electric power equipment, characterized in that it comprises: A cabinet body (1), wherein the cabinet body (1) is rotatably connected to a cabinet door (2); The slide rails (3) have two symmetrically distributed rails, both of which are fixedly connected to the cabinet (1); The loading platform (4) is slidably connected between the two slide rails (3), the loading platform (4) is provided with a plurality of first slide grooves (401), a sliding column (5) is slidably connected in the first slide grooves (401), an electrical appliance (6) is provided on the loading platform (4), the electrical appliance (6) is provided with a plurality of through holes, the sliding column (5) is provided with a second slide groove (501), a limiting member (7) is slidably connected in the second slide groove (501), and the limiting member (7) and the electrical appliance (6) are pressed against each other.
2. The magnetic shielding housing for electric power equipment according to claim 1, characterized in that: The sliding column (5) is slidably connected to a sliding ring (701), a buffer is provided between the sliding ring (701) and the loading platform (4), and the sliding ring (701) and the electrical appliance (6) are pressed against each other.
3. The magnetic shielding case for electric power equipment according to claim 1, characterized in that: The loading platform (4) is fixedly connected to a first shell (8), a first sliding plate (9) is slidably connected inside the first shell (8), a first spring is provided between the first sliding plate (9) and the first shell (8), and all the second sliding grooves (501) are connected to the first shell (8) via a hose.
4. The magnetic shielding case for electric power equipment according to claim 3 is characterized in that: The first shell (8) is provided with a spring telescopic rod (10), the telescopic end of the spring telescopic rod (10) is fixedly connected to the first sliding plate (9), the telescopic end of the spring telescopic rod (10) is slidably connected to the first shell (8) and penetrates through it, and a blocking member (1001) is fixedly connected to the sliding rail (3) close to the first shell (8).
5. The magnetic shielding case for electric power equipment according to claim 4, characterized in that: The loading platform (4) is fixedly connected to a first tension spring telescopic rod (11), the telescopic end of the first tension spring telescopic rod (11) is fixedly connected to a first limiting rod (12), the first sliding plate (9) is fixedly connected to a first sliding rod (13), the first sliding rod (13) is slidably connected to the first shell (8) and penetrates through it, and the first limiting rod (12) is used to limit the first sliding rod (13).
6. The magnetic shielding case for electric power equipment according to claim 5, characterized in that: Also included are: A second shell (14) is fixedly connected to the loading platform (4), and all the first slide grooves (401) are connected to the second shell (14) via a hose; The second sliding plate (15) is slidably connected inside the second shell (14).
7. The magnetic shielding case for electric power equipment according to claim 6, characterized in that: A second tension spring telescopic rod (16) is fixedly connected inside the cabinet (1), a second sliding plate (15) is fixedly connected to a second sliding rod (17), the second sliding rod (17) is slidably connected to the second housing (14) and penetrates the second housing (14), and a telescopic end of the second tension spring telescopic rod (16) is fixedly connected to the second sliding rod (17).
8. The magnetic shielding case for electric power equipment according to claim 7, characterized in that: The first limiting rod (12) is fixedly connected to a second limiting rod (18), the second limiting rod (18) is slidably connected to the second housing (14) and penetrates the second housing (14), and the second limiting rod (18) limits the second sliding rod (17).
9. The magnetic shielding case for electric power equipment according to claim 1, characterized in that: The sliding column (5) is slidably connected to a friction block (19), a second spring is provided between the friction block (19) and the sliding column (5), and the friction block (19) and the inner wall of the adjacent through hole on the electrical appliance (6) are pressed against each other.
10. The magnetic shielding case for electric power equipment according to claim 9, characterized in that: The friction block (19) is provided with friction material, which is used to increase its resistance to the electrical appliance (6).