Double-loop high-voltage power supply switching power supply equipment

Abstract

The utility model discloses a double-loop high-voltage power supply switching power supply device which comprises a power supply box body, the top of the power supply box body is provided with an air exchange port, the top of the air exchange port is communicated with a hollow block, an inner cavity of the hollow block is fixedly connected with two sets of fans, and a filter bin is arranged in the inner cavity of the hollow block and located above the fans. An inner cavity of the filtering bin is filled with an adsorption layer, mounting rings are fixedly connected to the two sides of the power supply box body, and a box door is rotationally connected to the surface of the power supply box body. According to the utility model, through the arrangement of the fans and the adsorption layer, the air inlet ends of one group of fans blow air to the inner cavity of the power supply box body, the air inlet ends of the other group of fans blow air outwards, external air is blown into the power supply box body, and the air in the power supply box body is blown out through the other group of fans; therefore, the air flowing speed inside and outside the power supply box body is accelerated, and then heat dissipation is carried out on electrical elements in the cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply equipment, in particular to a dual-circuit high-voltage power supply switching power supply equipment. Background Art

[0002] When the normal power suddenly fails or the power is cut off, the dual power switch is used to automatically switch to the backup power supply (the backup power supply can also be supplied by the generator under light load), so that the equipment can still operate normally. The most common ones are elevators, fire protection, monitoring, lighting, etc.

[0003] According to a Chinese patent with publication number CN221102846U, a dual power switching distribution box is disclosed, including an electric box body, an electric box door is hinged at the front end of the electric box body, a device mounting plate is fixedly installed on the inner wall of the electric box body, a heat dissipation mechanism is arranged at the rear end of the electric box body, and a heat dissipation structure is arranged at the upper end of the electric box body. The dual power switching distribution box consists of an electric box body, an electric box door, a heat dissipation mechanism, a heat dissipation structure and a device mounting plate. The heat dissipation mechanism is flexible and adjustable, so that the position of the blowing fan can be adjusted according to the size and number of distribution parts. By moving the blowing fan to the position directly behind the distribution parts and ensuring that the blowing path is aligned with the distribution parts, a direct blowing heat dissipation effect can be achieved. The heat dissipation structure can effectively discharge the heat and exhaust gas generated inside the electric power supply box body, ensuring that the temperature inside the distribution box is controlled within a safe range, and improving the reliability and effect of the entire dual power switching distribution box system.

[0004] The above-mentioned dual power switching distribution box has some problems in use. Although it can ensure that the blowing path is aligned with the distribution parts and can achieve a direct blowing and heat dissipation effect, when in a humid environment, the fan will blow the external humid air into the box, increasing the humidity in the box, which may cause damage to the electrical components in the box. Utility Model Content

[0005] The purpose of the utility model is to provide a dual-circuit high-voltage power switching power supply device to solve the problem raised in the above background technology that when in a humid environment, the fan will blow external humid air into the box, increasing the humidity in the box, which may cause damage to the electrical components in the box.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dual-circuit high-voltage power switching power supply device comprises a power supply box, a ventilation port is provided on the top of the power supply box, the top of the ventilation port is connected to a hollow block, the inner cavity of the hollow block is fixedly connected to two groups of fans, a filter bin is provided in the inner cavity of the hollow block and above the fan, the inner cavity of the filter bin is filled with an adsorption layer, mounting rings are fixedly connected on both sides of the power supply box, a box door is rotatably connected to the surface of the power supply box, and an adjustment component for controlling the air intake volume of the ventilation port is provided above the hollow block.

[0008] Preferably, the adjustment assembly includes a baffle plate rotatably connected to the top of the hollow block, a groove is provided on the surface of the baffle plate, an air inlet is provided on the bottom surface of the groove, a sealing plate for closing the air inlet is slidably connected to the bottom inner wall of the groove, a connecting rod is fixedly connected to the surface of the sealing plate located on the outside, one end of the connecting rod passes through the sealing plate in turn and extends to the outside of the other side of the baffle plate.

[0009] Preferably, both sides of the blocking plate are fixedly connected with connecting blocks, the surface of the connecting block is threadedly connected with a first bolt, and one end of the first bolt passes through the connecting block and is threadedly connected to the surface of the hollow block.

[0010] Preferably, a limiting ring is fixedly connected to the surface of the blocking plate and located at a position corresponding to the outer cylindrical surface of the connecting rod, a sliding groove is provided in the inner cavity of the limiting ring, a sliding block is slidably connected to the inner cavity of the sliding groove, a second bolt is threadedly connected to the top of the limiting ring, one end of the second bolt extends to the inner cavity of the sliding groove and is rotatably connected to the top of the sliding block.

[0011] Preferably, both sides of the fan are fixedly connected to limiting blocks, and limiting grooves are provided on the inner wall of the hollow block at positions opposite to the limiting blocks, and the limiting blocks are slidably connected to the inner cavity of the limiting grooves.

[0012] Preferably, a third bolt is threadedly connected to the top of the limiting block, and the screw thread of the third bolt passes through the limiting block and is threadedly connected to the bottom inner wall of the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model arranges fans and adsorption layers, wherein the air inlet end of one group of fans blows toward the inner cavity of the power supply box, and the air inlet end of the other group of fans blows outwards, blowing external air into the power supply box, and the air inside the power supply box is blown out to the outside through another group of fans, thereby accelerating the air flow speed inside and outside the power supply box, and then dissipating the heat of the electrical components in the cabinet, and in the process of ventilation, the external air is first adsorbed by the adsorption layer to adsorb the moisture contained in the air, thereby improving the dryness of the air and preventing humid air from entering the power supply box and affecting the electrical components.

[0015] 2. The utility model adjusts the setting of the components and pushes the connecting rod according to the seasonal climate to move the sealing plate toward the air inlet, thereby reducing the area of ​​the air inlet and controlling the air intake volume, thereby controlling the ventilation speed between the inner cavity and the outside of the power supply box. Alternatively, when the temperature is relatively low, the air inlet is completely closed to achieve internal circulation of the air inside the power supply box, thereby increasing the temperature of the inner cavity of the power supply box, thereby ensuring that the electrical components are in a suitable working environment, thereby greatly extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a dual-circuit high-voltage power supply switching power supply device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another perspective of the dual-circuit high-voltage power supply switching power supply device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the filter bin of the utility model;

[0019] Figure 4 This is a schematic cross-sectional structural diagram of the blocking plate of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at A in the middle.

[0021] In the figure: 100, power supply box; 101, mounting ring; 102, hollow block; 103, baffle; 104, ventilation port; 105, box door; 200, sealing plate; 201, connecting rod; 202, first bolt; 203, connecting block; 204, sliding groove; 205, second bolt; 206, sliding groove; 207, slider; 208, sliding block; 209, limiting ring; 210, groove; 211, air inlet; 300, limiting groove; 301, fan; 302, limiting block; 303, third bolt; 304, filter compartment; 305, adsorption layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The present embodiment provides a dual-circuit high-voltage power switching power supply device, including a power supply box 100, a ventilation port 104 is provided on the top of the power supply box 100, the top of the ventilation port 104 is connected to a hollow block 102, the inner cavity of the hollow block 102 is fixedly connected with two sets of fans 301, the inner cavity of the hollow block 102 and above the fan 301 is provided with a filter bin 304, the inner cavity of the filter bin 304 is filled with an adsorption layer 305, both sides of the power supply box 100 are fixedly connected with mounting rings 101, the surface of the power supply box 100 is rotatably connected with a box door 105, and an adjusting component for controlling the air intake of the ventilation port 104 is provided above the hollow block 102, through the fan 301 and the adsorption The layer 305 is set up, in which the air inlet end of one group of fans 301 blows air into the inner cavity of the power supply box 100, and the air inlet end of the other group of fans 301 blows air outward, so as to blow the external air into the power supply box 100, and the air inside the power supply box 100 is blown out to the outside through another group of fans 301, thereby accelerating the air flow speed between the inside and outside of the power supply box 100, and then dissipating the heat of the electrical components in the cabinet, and in the process of ventilation, the external air is first adsorbed by the adsorption layer 305 to adsorb the moisture contained in the air, thereby increasing the dryness of the air and preventing humid air from entering the power supply box 100 and affecting the electrical components.

[0024] Among them, the power supply box 100 is provided with a first power input terminal and a second power input terminal, and a control circuit board and a switching control module are installed inside the power supply box 100. The switching control module can monitor the voltage, frequency, phase and other parameters of the power system in real time, and automatically switch to the backup power supply when the main power supply fails.

[0025] The switching control module includes a voltage detection sensor, a signal processor and an actuator.

[0026] Among them, the actuator includes a first intermediate relay and a second intermediate relay, which are arranged inside the power supply box 100, and each intermediate relay includes a coil, a normally open contact, and a normally closed contact. The actuator realizes automatic switching between the main power supply and the backup power supply by controlling the coil of the intermediate relay to be energized or de-energized. The voltage detection sensor collects the voltage signals of the main power supply and the backup power supply in real time and transmits them to the signal processor. The signal processor processes the collected signal to determine whether the main power supply fails. If the main power supply fails, a switching instruction is issued to the actuator. After receiving the switching instruction, the actuator controls the coil of the intermediate relay to be energized or de-energized, so that the normally open contact and the normally closed contact switch states, thereby realizing automatic switching between the main power supply and the backup power supply. This automatic switching mechanism greatly improves the reliability and continuity of the power supply system, and ensures the normal operation of important equipment and the security of data.

[0027] It is worth noting that the signal processor is arranged on the control circuit board, and the signal processor is a single chip microcomputer of model STC89C51, and the voltage detection sensor can select a closed loop Hall voltage sensor of model CHV-25P.

[0028] Furthermore, the adjustment component includes a blocking plate 103 rotatably connected to the top of the hollow block 102, a groove 210 is provided on the surface of the blocking plate 103, an air inlet 211 is provided on the bottom surface of the groove 210, a sealing plate 200 for closing the air inlet 211 is slidably connected to the bottom inner wall of the groove 210, sliders 207 are fixedly connected to both sides of the sealing plate 200, and slide grooves 206 corresponding to the sliders 207 are provided on the inner walls of both sides of the groove 210, the sliders 207 are slidably connected to the inner cavity of the slide grooves 206, and a connecting rod 201 is fixedly connected to the surface of the sealing plate 200 located on the outside, and one side of the connecting rod 201 is connected to the sealing plate 200. The ends pass through the sealing plate 200 in sequence and extend to the outside of the other side of the blocking plate 103. By adjusting the setting of the component, according to the seasonal climate, the connecting rod 201 is pushed to move the sealing plate 200 to the air inlet 211, thereby reducing the area of ​​the air inlet 211 and controlling the air intake amount, thereby controlling the ventilation speed between the inner cavity and the outside of the power supply box 100; or when in an environment with a lower temperature, completely close the air inlet 211 to achieve internal circulation of the air inside the power supply box 100, thereby increasing the temperature of the inner cavity of the power supply box 100, thereby ensuring that the electrical components are in a suitable working environment, thereby greatly extending their service life.

[0029] Furthermore, both sides of the blocking plate 103 are fixedly connected with connecting blocks 203, and the surface of the connecting block 203 is threadedly connected with a first bolt 202, one end of the first bolt 202 penetrates the connecting block 203 and is threadedly connected to the surface of the hollow block 102. Through the arrangement of the connecting block 203 and the first bolt 202, one end of the first bolt 202 penetrates the connecting block 203 and is threadedly connected to the surface of the hollow block 102, thereby fixing the blocking plate 103 to prevent the blocking plate 103 from flipping over during use.

[0030] Preferably, a limiting ring 209 is fixedly connected to the surface of the blocking plate 103 and located at a position corresponding to the outer cylindrical surface of the connecting rod 201. A sliding groove 204 is provided in the inner cavity of the limiting ring 209. A sliding block 208 is slidably connected to the inner cavity of the sliding groove 204. A second bolt 205 is threadedly connected to the top of the limiting ring 209. One end of the second bolt 205 extends to the inner cavity of the sliding groove 204 and is rotatably connected to the top of the sliding block 208 to fix the connecting rod 201 to prevent the connecting rod 201 from being moved due to external force, thereby affecting the air inlet 211.

[0031] It is worth mentioning that the limiting blocks 302 are fixedly connected to both sides of the fan 301, and the limiting groove 300 is provided on the inner wall of the hollow block 102 and at a position opposite to the limiting block 302. The limiting block 302 is slidably connected to the inner cavity of the limiting groove 300, and the top of the limiting block 302 is threadedly connected with a third bolt 303, and the screw thread of the third bolt 303 penetrates the limiting block 302 and is threadedly connected to the bottom inner wall of the limiting groove 300. When installing the fan 301, it is only necessary to slide the limiting blocks 302 on both sides of the fan 301 to the inner cavity of the limiting groove 300, and use the third bolt 303 to penetrate the limiting block 302 and threadedly connect it to the inner cavity of the limiting groove 300. This is very convenient and quick, and when the fan 301 is damaged, it is easy to replace it.

[0032] Working principle:

[0033] First, the fans 301 are started, and the air inlet ends of one group of fans 301 blow air toward the inner cavity of the power supply box 100, and the air inlet ends of the other group of fans 301 blow air outward, so as to blow the external air into the power supply box 100, and then the air inside the power supply box 100 is blown out to the outside through another group of fans 301, thereby accelerating the air flow speed between the inside and outside of the power supply box 100, and then dissipating the heat of the electrical components in the cabinet, and in the process of ventilation, the external air is first adsorbed by the adsorption layer 305 to adsorb the moisture contained in the air, thereby increasing the dryness of the air, and preventing humid air from entering the power supply box 100 and affecting the electrical components, and according to the seasonal climate, the connecting rod 201 is pushed to move the sealing plate 200 toward the air inlet 211, thereby reducing the size of the air inlet 211. area, control the air intake amount, and then control the ventilation speed between the inner cavity and the outside of the power supply box 100, or when in a low temperature environment, completely close the air inlet 211 to realize the internal circulation of the air inside the power supply box 100, thereby increasing the temperature of the inner cavity of the power supply box 100, and then ensuring that the electrical components are in a suitable working environment, thereby greatly extending the service life, and when used for a long time and the adsorption effect of the adsorption layer 305 is not good, remove the first bolts 202 on both sides of the blocking plate 103 in turn, and support the blocking plate 103 and flip it to the other side to expose the filter bin 304, and then replace the adsorption layer 305 in the filter bin 304. When the replacement is completed, flip the blocking plate 103 to the other side, and use the second bolt 205 to fix the connecting block 203 and the power supply box 100 together.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-circuit high-voltage power supply switching power supply device, characterized in that: The invention comprises a power supply box (100), wherein a ventilation port (104) is provided at the top of the power supply box (100), wherein the top of the ventilation port (104) is connected to a hollow block (102), wherein the inner cavity of the hollow block (102) is fixedly connected to two groups of fans (301), wherein a filter chamber (304) is provided in the inner cavity of the hollow block (102) and above the fans (301), wherein the inner cavity of the filter chamber (304) is filled with an adsorption layer (305), wherein mounting rings (101) are fixedly connected to both sides of the power supply box (100), wherein a box door (105) is rotatably connected to the surface of the power supply box (100), and wherein an adjustment component for controlling the air intake volume of the ventilation port (104) is provided above the hollow block (102).

2. A dual-circuit high-voltage power supply switching power supply device according to claim 1, characterized in that; The regulating assembly comprises a blocking plate (103) rotatably connected to the top of the hollow block (102); a groove (210) is provided on the surface of the blocking plate (103); an air inlet (211) is provided on the bottom surface of the groove (210); a sealing plate (200) for closing the air inlet (211) is slidably connected to the bottom inner wall of the groove (210); a connecting rod (201) is fixedly connected to the surface of the sealing plate (200) located on the outside; one end of the connecting rod (201) passes through the sealing plate (200) in sequence and extends to the outside of the other side of the blocking plate (103).

3. A dual-circuit high-voltage power supply switching power supply device according to claim 2, characterized in that: Both sides of the blocking plate (103) are fixedly connected with connecting blocks (203), and the surface of the connecting block (203) is threadedly connected with a first bolt (202), and one end of the first bolt (202) passes through the connecting block (203) and is threadedly connected to the surface of the hollow block (102).

4. A dual-circuit high-voltage power supply switching power supply device according to claim 3, characterized in that: A limiting ring (209) is fixedly connected to the surface of the blocking plate (103) and located at a position corresponding to the outer cylindrical surface of the connecting rod (201); a sliding groove (204) is provided in the inner cavity of the limiting ring (209); a sliding block (208) is slidably connected to the inner cavity of the sliding groove (204); a second bolt (205) is threadedly connected to the top of the limiting ring (209); one end of the second bolt (205) extends to the inner cavity of the sliding groove (204) and is rotatably connected to the top of the sliding block (208).

5. A dual-circuit high-voltage power supply switching power supply device according to claim 1, characterized in that: The fan (301) is fixedly connected to limit blocks (302) on both sides, and a limit slot (300) is provided on the inner wall of the hollow block (102) at a position opposite to the limit block (302), and the limit block (302) is slidably connected to the inner cavity of the limit slot (300).

6. A dual-circuit high-voltage power supply switching power supply device according to claim 5, characterized in that: The top of the limiting block (302) is threadedly connected to a third bolt (303), and the screw thread of the third bolt (303) passes through the limiting block (302) and is threadedly connected to the bottom inner wall of the limiting groove (300).

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