Box type high-voltage direct-current power supply equipment
By designing air inlet and exhaust port structures in high-voltage DC power supply equipment, equipping it with filter frames and dust filters, and combining intake and exhaust fans, the problem of poor dust prevention during heat dissipation is solved, achieving efficient heat dissipation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANGJING SANSHI COMM TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
Existing high-voltage DC power supply equipment has poor dust prevention during heat dissipation and is inconvenient for dust maintenance and handling.
The design incorporates an air intake and exhaust port structure, equipped with a filter rack and dust filter. It features quick-release installation via locking components, combined with forced ventilation from the intake and exhaust fans to enhance heat dissipation, and the dust filter prevents dust from entering.
It achieves efficient heat dissipation and dust prevention, is easy to maintain, and improves the practicality of the equipment.
Smart Images

Figure CN224123748U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply equipment technology, specifically a box-type high-voltage DC power supply device. Background Technology
[0002] High-voltage DC power supplies, also known as DC high-voltage power supplies, are power supplies that take AC mains or three-phase power as input and output DC voltage of several thousand volts or tens of thousands of volts or more. The output power ranges from several hundred watts to several thousand watts. They can generally stabilize voltage or current. Early DC high-voltage power supplies were made by stepping up AC mains or three-phase power through an industrial frequency high-voltage transformer to AC high-voltage power, and then rectifying and filtering it to obtain DC high-voltage power. With the development of society, they have been widely used.
[0003] In order to improve heat dissipation, existing high-voltage DC power supply equipment usually has a heat dissipation structure installed inside the equipment during use. For example, Chinese utility model patent with announcement number CN212210242U discloses a high-voltage DC power supply device.
[0004] However, in actual use, it is found that the above-mentioned high-voltage DC power supply device takes in air through the side air inlet and exhausts air through the air outlet. However, this structure has poor dust protection and is not convenient for maintaining and treating the filtered dust, making it less practical. Utility Model Content
[0005] The purpose of this invention is to provide a box-type high-voltage DC power supply device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a box-type high-voltage DC power supply device, comprising a main body, an air inlet and an exhaust outlet on the side of the main body, the exhaust outlet being located above the air inlet, and mounting sockets fixed to the outer sides of both the air inlet and exhaust outlet. A slot is provided inside the mounting socket, into which a filter frame is inserted, and a dustproof net is fixed. A positioning groove is provided on the side of the filter frame, and a movable cylinder is fixed to the side of the mounting socket, with a locking assembly inside the movable cylinder. The air inlet allows external air to enter the main body for heat dissipation, while the exhaust outlet exhausts hot air from inside the main body. The dustproof net serves as a dustproof barrier, and the locking assembly allows for the installation and removal of the filter frame.
[0007] The locking assembly includes a positioning block inserted into a positioning groove, a connecting rod fixed to the positioning block, and an elastic component sleeved on the outside of the connecting rod. The elastic component is connected to the positioning block and the movable cylinder, and the connecting rod passes through the movable cylinder and is connected to a pull rod. The filter frame is fixed by inserting the positioning block into the positioning groove on the filter frame. To release the fixation, simply pull the pull rod, which, through the connecting rod, moves the positioning block, pulling it out of the positioning groove.
[0008] As a preferred embodiment of this invention, several lifting lugs are fixed above the main body of the equipment. These lifting lugs serve to suspend the main body of the equipment.
[0009] As a preferred embodiment of this invention, the device body is provided with several casters at its base. The casters facilitate the movement of the device body, and each caster is equipped with a brake pad.
[0010] As a preferred embodiment of this invention, an intake fan is provided inside the air inlet. The intake fan assists in air intake to improve heat dissipation.
[0011] As a preferred embodiment of this invention, an exhaust fan is installed inside the exhaust port. The exhaust fan assists in exhaust and improves heat dissipation.
[0012] As a preferred embodiment of this invention, the main body of the equipment is equipped with an inspection door. The inspection door can be opened to allow for maintenance of the electrical components inside the main body of the equipment.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model forms a convection heat dissipation channel through the air inlet and exhaust outlet, and uses an intake fan and an exhaust fan for forced ventilation to enhance heat dissipation efficiency; the filter frame is installed in the air inlet and exhaust outlet through slots, and has a built-in dustproof net to prevent dust from entering the equipment; the quick-release filter frame makes it easy to replace the dustproof net and is easy to maintain. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the structure for removing the dustproof netting according to this utility model;
[0018] Figure 4 This is a schematic diagram of the socket structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the filter frame structure of this utility model.
[0020] In the diagram: 1. Main body of the equipment; 101. Air inlet; 102. Exhaust outlet; 2. Mounting socket; 201. Slot; 202. Movable cylinder; 3. Filter frame; 301. Dustproof net; 302. Positioning groove; 4. Locking assembly; 401. Positioning block; 402. Connecting rod; 403. Elastic assembly; 404. Pull rod; 5. Lifting lug; 6. Casters; 7. Inlet fan; 8. Exhaust fan; 9. Inspection door. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "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 utility model according to the specific circumstances.
[0024] Please see Figure 1-5This utility model provides a technical solution: a box-type high-voltage DC power supply device, including a device body 1. The device body 1 has an air inlet 101 and an exhaust outlet 102 on its side, with the exhaust outlet 102 located above the air inlet 101. Both the air inlet 101 and the exhaust outlet 102 have mounting sockets 2 fixed to their outer sides. The mounting sockets 2 have slots 201 on their inner sides, into which a filter frame 3 is inserted. A dustproof net 301 is fixed inside the filter frame 3. The filter frame 3 has positioning grooves 302 on its side. A movable cylinder 202 is fixed to the side of the mounting sockets 2, and a locking assembly 4 is installed inside the movable cylinder 202. The air inlet 101 allows external air to enter the device body 1 for heat dissipation, while the exhaust outlet 102 exhausts hot air from inside the device body 1. The dustproof net 301 serves as a dustproof barrier, and the locking assembly 4 allows for the installation and removal of the filter frame 3.
[0025] The locking assembly 4 includes a positioning block 401 inserted into the positioning groove 302. A connecting rod 402 is fixed to the positioning block 401. An elastic component 403 is sleeved on the outside of the connecting rod 402. The elastic component 403 is connected to the positioning block 401 and the movable cylinder 202. The connecting rod 402 passes through the movable cylinder 202 and is connected to a pull rod 404. The filter frame 3 is fixed by inserting the positioning block 401 into the positioning groove 302 on the filter frame 3. To remove the fixation, simply pull the pull rod 404, which drives the positioning block 401 through the connecting rod 402, pulling the positioning block 401 out of the positioning groove 302.
[0026] Furthermore, several lifting lugs 5 are fixed above the main body of the equipment 1. The lifting lugs 5 serve to lift the main body of the equipment 1.
[0027] Furthermore, several casters 6 are provided below the main body 1 of the device. The casters 6 are mainly for the convenience of moving the main body 1 of the device, and the casters 6 are equipped with brake pads.
[0028] Furthermore, an intake fan 7 is provided inside the air intake 101. The intake fan 7 assists in air intake to improve heat dissipation.
[0029] Furthermore, an exhaust fan 8 is installed inside the exhaust port 102. The exhaust fan 8 serves to assist in exhaust and improve heat dissipation.
[0030] Furthermore, an inspection door 9 is installed on the main body of the equipment 1. The inspection door 9 can be opened to allow maintenance of the electrical components inside the main body of the equipment 1.
[0031] In summary, when this equipment is in use, by activating the intake fan 7 and exhaust fan 8, the intake fan 7 blows dry external air into the main body 1 through the air inlet 101 to dissipate heat from the inside of the main body 1, while the exhaust fan 8 blows out the hot air from inside the main body 1, thus achieving a heat dissipation effect. Furthermore, the dustproof net 301 at the air inlet prevents dust from entering the main body 1, and the dustproof net 301 at the exhaust port 102 prevents external dust from entering the main body 1 when it is stopped. When maintenance of the dustproof net 301 is required, simply pull the lever 404, which, through the connecting rod 402, moves the positioning block 401, causing the positioning block 401 to compress the elastic component 403, causing the elastic component 403 to contract. Once the positioning block 401 is pulled out of the positioning groove 302, the filter frame can be pulled out of the mounting socket 2, thereby removing the dustproof net 301. During installation, simply pull the lever 404 again, then insert the filter frame from above the mounting socket 2. After insertion, release the lever 404 so that the elastic component 403 pushes the positioning block 401 back, and then reinserts the positioning block 401 into the positioning groove 302.
[0032] It is worth noting that the entire device is controlled by a master control button. Since the device matched with the control button is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A box-type high-voltage DC power supply device, characterized in that: The device includes a main body (1), on which an air inlet (101) and an exhaust outlet (102) are provided on the side. The exhaust outlet (102) is located above the air inlet (101). An installation socket (2) is fixed on the outside of both the air inlet (101) and the exhaust outlet (102). A slot (201) is provided on the inside of the installation socket (2). A filter frame (3) is inserted into the slot (201). A dustproof net (301) is fixed inside the filter frame (3). A positioning groove (302) is provided on the side of the filter frame (3). A movable cylinder (202) is fixed on the side of the installation socket (2). A locking component (4) is provided inside the movable cylinder (202).
2. The enclosure-type high-voltage DC power supply device according to claim 1, characterized in that: The locking assembly (4) includes a positioning block (401) inserted into the positioning groove (302), a connecting rod (402) fixed on the positioning block (401), an elastic component (403) sleeved on the outside of the connecting rod (402), the elastic component (403) being connected to the positioning block (401) and the movable cylinder (202), and the connecting rod (402) passing through the movable cylinder (202) and being connected to a pull rod (404).
3. The enclosure-type high-voltage DC power supply device according to claim 1, characterized in that: Several lifting lugs (5) are fixed on the top of the main body (1) of the equipment.
4. A box-type high-voltage DC power supply device according to claim 1, characterized in that: Several casters (6) are provided below the main body (1) of the equipment.
5. A box-type high-voltage DC power supply device according to claim 1, characterized in that: An air intake fan (7) is installed inside the air intake (101).
6. A box-type high-voltage DC power supply device according to claim 1, characterized in that: An exhaust fan (8) is installed inside the exhaust port (102).
7. A box-type high-voltage DC power supply device according to claim 1, characterized in that: The main body (1) of the equipment is equipped with an inspection door (9).
Citation Information
Patent Citations
High-voltage direct-current power supply device
CN212210242U