A high-voltage power supply protection box

Abstract

The utility model discloses a high voltage power supply protection box belongs to power protection technical field. This high voltage power supply protection box includes box body and apron, and apron can open and shut, is provided with compressed air air inlet and heat dissipation hole on the box body, and the compressed air air inlet outside is connected pressure regulating valve, and the other end of pressure regulating valve is connected air filter, and pressure regulating valve is used for the steady voltage treatment to compressed air, makes compressed air reach proper pressure range, and air filter is used for filtering compressed air, obtains more pure air and passes into protection box, and is provided with transparent observation board on the box body. Through compressed air circulation replaces traditional fan, solves low heat dissipation efficiency, loud noise and dust invasion problem, and the dustproof performance is improved in the combination of sealing structure and positive pressure environment, and the transparent observation window realizes the reading of exempting from opening apron, and provides efficient heat dissipation and pure working environment for high voltage power supply.

Description

Technical Field

[0001] This utility model relates to a high-voltage power supply protection box, belonging to the field of power supply protection technology. Background Technology

[0002] In spinning engineering, high-voltage power supplies are widely used in processes such as electrospinning and melt spinning. They drive polymer solutions or melts to form micro and nanofibers through high-voltage electric fields. The stability and safety of high-voltage power supplies directly affect fiber quality and production continuity. Traditional protection technologies, such as using sealed shells to enclose high-voltage power supplies, employing one-time protection devices such as fuses or mechanical circuit breakers, and designing overvoltage and overcurrent circuit systems, mainly focus on solving problems such as high-voltage breakdown, electromagnetic interference, and environmental temperature and humidity. Furthermore, the long-term effects of industrial dust and corrosive gases on high-voltage components must be considered. Therefore, high-voltage power supply protection in modern spinning engineering requires the integration of electrical engineering, materials science, and automation technology to improve equipment reliability and reduce maintenance costs.

[0003] The utility model patent with announcement number CN214800189U discloses a high-voltage power supply protection device. This device can protect the casing of the high-voltage power supply through a protective frame to prevent it from being corroded by rain or sun. When the high-voltage power supply is working and generating heat, the drive motor drives the first and second fan blades to rotate, which increases the air circulation speed inside the protective frame. The wind force generated when the first fan blade rotates causes the heat sink to press against the casing of the high-voltage power supply, which accelerates the heat dissipation of the casing of the high-voltage power supply, thereby avoiding the problem of the high-voltage power supply being damaged by overheating.

[0004] However, the above-mentioned disclosed technology does not overcome the following problems when used: (1) Cooling fans require airflow to remove heat, and their heat dissipation efficiency is limited; (2) The fan requires continuous power supply to operate, which increases energy consumption, and the motor will generate additional heat when it is working; (3) The presence of ventilation openings makes it easy for dust to enter the protective device and further come into contact with the high-voltage power supply, causing damage. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a high-voltage power supply protection box.

[0006] The technical solution is as follows: A high-voltage power supply protection box includes: a box body and a cover plate, the cover plate being openable and closable; the box body is provided with a compressed air inlet and a heat dissipation hole; the compressed air inlet is externally connected to a pressure regulating valve, and the other end of the pressure regulating valve is connected to an air filter; the pressure regulating valve is used to stabilize the compressed air to achieve a suitable pressure range; the air filter is used to filter the compressed air to obtain cleaner air that enters the protection box.

[0007] In one embodiment, a sealing gasket is installed around the cover plate to ensure the airtightness of the high-voltage power supply protection box and prevent dust from entering.

[0008] In one embodiment, handles are provided on both sides of the box to facilitate handling.

[0009] In one embodiment, one side of the box is made of a transparent observation plate, which allows for direct observation of the internal structure and facilitates reading.

[0010] In one embodiment, the cover plate is fixed to one side of the shell by means of a hinge, and the cover plate can be opened and closed without being removed; a box buckle is provided on the other side, and the cover plate is closed to form a sealed space.

[0011] In one embodiment, each of the two side plates of the box has two corresponding fixing blocks inside for fixing the high-voltage power supply.

[0012] Advantages of this utility model: (1) In this utility model, a compressed air inlet connected to the pressure regulating valve is designed to circulate compressed air into the protective box through the air pipe, thereby cooling the box and replacing the traditional cooling fan. This solves the problem of limited cooling efficiency of the cooling fan, avoids the mechanical noise generated when the fan is running, solves the problem of the motor generating extra heat when the cooling fan is running, and maintains positive pressure inside the protective box. (2) In this utility model, compressed air is continuously introduced into the protective box. The compressed air carries away the heat generated during the operation of the power supply through the only heat dissipation hole. The inside of the protective box is always kept under positive pressure, which solves the problem that dust can easily enter through the heat dissipation hole and come into contact with the high voltage power supply and cause damage under the traditional fan heat dissipation situation. It further provides a clean working environment for the high voltage power supply. (3) In this utility model, sealing gaskets are installed around the cover plate, which solves the problem of dust entering the protective box and causing damage due to contact with the high voltage power supply caused by poor sealing, and ensures the airtightness of the shell; (4) The side of the box is equipped with a handle, which solves the problem of inconvenient handling of the protective box and the internal power supply; (5) The front of the box in this utility model is made of acrylic material observation plate, which is transparent. This solves the problem that traditional protective boxes are inconvenient to read and require opening the protective box to read, which can easily lead to dust entering and damaging the power supply. This makes it convenient for high voltage power supplies to observe and read in a clean working environment. (6) The cover plate of this utility model adopts a hinged opening and closing design, so there is no need to remove the cover plate when opening it, which is convenient for operation; a box buckle is provided on the other side of the cover plate to provide a sealed environment for the high voltage power supply inside the box. (7) In this utility model, there are two corresponding fixing blocks inside the two side plates of the box body for fixing the high voltage power supply, which can better play a protective role. Attached Figure Description

[0013] Figure 1 A schematic diagram of the three-dimensional structure of the back of a high-voltage power supply protection box; Figure 2 A schematic diagram of the internal structure of a high-voltage power supply protection box; The components include: air filter 1, pressure regulating valve 2, compressed air inlet 3, box body 4, hinge 5, cover plate 6, transparent observation plate 7, handle 8, box buckle 9, observation plate sealing gasket 10, fixing block 11, top horizontal sealing gasket 12, and heat dissipation hole 13. Detailed Implementation

[0014] The following is a detailed description of this utility model.

[0015] Example 1 See attached document Figure 1 Appendix Figure 2 This embodiment provides a high-voltage power supply protection box, including: a box body 4 and a cover plate 6. The box body 4 is provided with a compressed air inlet 3 and a heat dissipation hole 13. A pressure regulating valve 2 is externally connected to the compressed air inlet 3, and the other end of the pressure regulating valve 2 is sequentially connected to an air filter 1 and an externally connected air compressor. A transparent observation plate 7 is used on one side of the housing, and handles 8 are correspondingly provided on the other two sides of the housing. Four corresponding fixing blocks 11 are provided inside the box body 4, and a top horizontal sealing gasket 12 and an observation plate sealing gasket 10 are respectively provided inside the cover plate 6.

[0016] A sealing component, namely a sealing ring, is provided between the box body 4 and the cover plate 6 to ensure the airtightness of the high-voltage power protection box. The cover plate 6 is fixed to the box body 4 by means of hinge connection, rotation connection, bayonet connection, or pin connection. The cover plate 6 is locked to the box body 4 by means of latching, button locking, rotating locking, magnetic locking, or sliding rail locking.

[0017] The box body 4 and cover plate 6 are made of carbon steel with a baked enamel finish. One side of the cover plate 6 is fixed to the shell with screws via hinges 5, and the other side of the cover plate 6 is locked to the shell with a snap-on buckle 9. Compressed air inlets 3 and heat dissipation holes 13 are respectively provided on the adjacent sides of the box body 4. The handles 8 on both sides of the box body 4 are fixed to the shell with bolts. The transparent observation panel 7 of the protective box is made of acrylic. There are two corresponding fixing blocks 11 inside each of the two side panels of the box body 4. These blocks are made of carbon steel with a baked enamel finish. The power panel is fixed to the fixing blocks 11 inside the protective box with screws to prevent the power panel from shifting or being damaged by bumps during transportation. The top horizontal sealing gasket 12 and the observation panel sealing gasket 10 are made of rubber to achieve good airtightness. The pressure regulating valve 2 is connected to the compressed air inlet 3 with a 16-inch pipe joint.

[0018] It should be noted that the compressed air flows into the inner cavity of the protection box through the narrow channel of the pressure regulating valve 2, expands rapidly, and does work on the outside. The internal energy of the gas decreases, resulting in a drop in temperature and a significant cooling effect. At the same time, it continuously maintains the positive pressure inside the protection box to prevent external dust from entering and damaging the high-voltage power supply.

[0019] This high-voltage power supply protection box can effectively maintain a positive pressure inside the box, reduce the temperature inside the box, and isolate dust to maintain a clean working environment. Specific usage steps include: S1, open the protective box buckle 9, lift the cover plate 6, put the high voltage power supply into the protective box, and fix it to the fixing block 11 with screws; S2, close the cover plate 6, rely on the sealing gaskets around the cover plate to form a good airtightness, and lock the protective box buckle 9; S3 generates compressed air through an external air compressor at the front end. After opening the external air filter 1 and pressure regulating valve 2, the compressed air is filtered and stabilized and then introduced into the protective box through the compressed air inlet 3. S4, after the inside of the protective box reaches positive pressure, the excess compressed air is discharged through the heat dissipation hole 13, thus maintaining positive pressure and a clean working environment inside the box. S5, the protective box continues to work normally, and the readings are taken through the front acrylic transparent observation plate 7 of the box body 4, specifically the current, voltage and status indicator lights.

[0020] The working principle of this utility model: The high-voltage power supply protection box filters and stabilizes compressed air through an external air filter and a pressure regulating valve before introducing it into the box through the air inlet. As the compressed air flows into the inner cavity of the protection box through the narrow channel of the pressure regulating valve, it expands rapidly and performs work, reducing the internal energy of the gas and causing the temperature to drop significantly. At the same time, it maintains a positive pressure inside the protection box to prevent external dust from entering and damaging the high-voltage power supply. The high-voltage power supply generates heat during operation, and the compressed air is discharged from the protection box through the heat dissipation holes, carrying away the heat and maintaining a positive pressure inside the box while preventing dust contamination.

[0021] The cover is fitted with sealing gaskets around its perimeter to ensure the airtightness of the protective box and prevent dust contamination; the cover opens and closes with hinges for easy operation; handles are installed on the sides of the box for easy handling of the high-voltage power supply; a transparent observation panel is provided on the front of the box for easy reading of the internal high-voltage power supply; each of the two side panels of the box has two corresponding fixing blocks inside to secure the high-voltage power supply and provide protection.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A high-voltage power supply protection box, characterized in that, It includes a box body (4) and a cover plate (6), wherein the box body (4) is provided with a compressed air inlet (3) and a heat dissipation hole (13), the compressed air inlet (3) is externally connected to a pressure regulating valve (2), the other end of the pressure regulating valve (2) is connected to an air filter (1), and the box body (4) is provided with a transparent observation plate (7).

2. The high-voltage power supply protection box according to claim 1, characterized in that, A sealing component is provided between the box body (4) and the cover plate (6) to ensure the airtightness of the high-voltage power protection box.

3. The high-voltage power supply protection box according to claim 2, characterized in that, The sealing component is a sealing ring.

4. A high-voltage power supply protection box according to claim 1, characterized in that, The cover plate (6) is fixed to the box body (4) by means of hinge connection, rotation connection, bayonet connection or pin connection.

5. A high-voltage power supply protection box according to claim 1, characterized in that, The cover plate (6) is locked to the box body (4) by means of a snap-on lock, a button lock, a rotary lock, a magnetic lock or a slide rail lock.

6. A high-voltage power supply protection box according to claim 1, characterized in that, The box body (4) is provided with a handle (8).

7. A high-voltage power supply protection box according to claim 1, characterized in that, The box (4) is equipped with a fixing block (11).

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