Dustproof high-low voltage switch cabinet

Abstract

The utility model discloses a dustproof high-low voltage switch cabinet, and relates to the technical field of high-low voltage switch cabinets. The device comprises a switch cabinet, one side of the switch cabinet is connected with an air inlet pipe, a filter screen and a fan are arranged in the air inlet pipe, the output end of the fan is connected with a transmission shaft, the transmission shaft is connected with a wind shield, the transmission shaft penetrates through the side portion of one end of the filter screen and is connected with a scraper blade, and a cabinet door is in running fit with an opening of the switch cabinet. The fan is started to drive air to be filtered through the filter screen, the fan drives the transmission shaft to rotate, the transmission shaft drives the wind shield and the scraper to synchronize, and the wind shield shields a scraping area of the scraper on the filter screen, so that the situation that the scraping effect of the scraper is affected due to air circulation in the scraping area on the filter screen is avoided, and dust scraped by the scraper is thrown out through the opening conveniently; the filter screen can be cleaned while heat dissipation is conducted through the fan, and the equipment cost and the filter screen cleaning cost can be reduced conveniently.

Description

Technical Field

[0001] The utility model belongs to the field of high and low voltage switch cabinets, and specifically relates to a dustproof high and low voltage switch cabinet. Background Art

[0002] Switchgear refers to equipment that opens, closes, controls and protects electrical equipment during power generation, transmission, distribution and energy conversion in the power system. It is an indispensable device in the power system. Because the switchgear needs to control electricity, a large number of electronic components are installed inside it to help it complete its work. These electronic components will generate a lot of heat during operation. If the heat is not discharged, the service life of the internal electronic components will be reduced. Under long-term operation, there will also be a hidden danger of causing fire. Therefore, a heat sink will be used to dissipate the heat of the switchgear. The heat sink currently used is generally a fan. However, when the fan works for a long time, its dust removal net will accumulate a lot of dust and impurities. These dust and impurities will block the filter holes, resulting in the inability of outside air to flow into the switchgear, resulting in poor heat dissipation.

[0003] The Chinese patent with the publication number CN213885408U discloses a dustproof high and low voltage switch cabinet, including a switch cabinet, a cooling fan is fixedly connected to the outer wall of one side of the switch cabinet, and a filter box is fixedly connected to the outer wall of the cooling fan, a dust removal net is fixedly connected inside the filter box, and a high-pressure pipe is provided on the side of the dust removal net away from the cooling fan, a plurality of high-pressure air nozzles are fixedly connected to the outer wall of one side of the high-pressure pipe, and a threaded slider is fixedly connected to the outer wall of the other side of the high-pressure pipe, a threaded rod is threadedly connected inside the threaded slider, and the threaded rod is rotatably connected to the inner wall of the filter box. The utility model device is provided with a threaded rod, a threaded slider, a high-pressure pipe, and a high-pressure air nozzle. When too much dust and impurities accumulate on the dust removal net and the filter hole is blocked, the high-pressure air nozzle is moved up and down to spray high-pressure gas, so that the dust on the dust removal net can be removed, and the dust is prevented from blocking the dust removal net, so that the ventilation and heat dissipation effect is better. However, the dustproof high and low voltage switch cabinet in the application needs to clean the dust removal net by controlling the high-pressure air nozzle to move separately, which increases the equipment cost and the cleaning cost of the dust removal net.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a dustproof high and low voltage switch cabinet.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A dustproof high and low voltage switch cabinet comprises a switch cabinet, one side of the switch cabinet is connected to an air intake pipe, a filter screen and a fan are arranged in the air intake pipe, the output end of the fan is connected to a transmission shaft, a wind shield is connected to the transmission shaft, the transmission shaft passes through the filter screen and is connected to a scraper at one end side thereof, and a cabinet door is rotatably matched at the opening of the switch cabinet.

[0008] Optionally, one side of the wind shield and the scraper is in contact with the filter, an air outlet pipe is provided on one side of the switch cabinet, and the wind shield and the scraper are both fan-shaped plate structures. The fan-shaped area of ​​the wind shield is larger than the fan-shaped area of ​​the scraper, which makes it convenient to shield the scraping area of ​​the scraper on the filter through the wind shield, thereby avoiding air circulation in the scraping area of ​​the filter and affecting the scraping effect of the scraper.

[0009] Optionally, the relatively inner sides of the switch cabinets are connected to air passage plates, which are hollow shell structures, and the relatively inner sides of the air passage plates are evenly distributed with a plurality of air holes, and the two air passage plates are respectively connected to the air inlet pipe and the air outlet pipe, and a heat conduction mounting plate is provided between the two air passage plates, and a plurality of electrical components are provided on the heat conduction mounting plate to facilitate the filtered air to be blown to the electrical components on the heat conduction mounting plate through the air passage holes on the air plate, and then discharged into the air outlet pipe through the air passage holes on the other air passage plate, and then discharged from the switch cabinet. By setting the air passage holes on the air passage plates to blow the filtered air to the electrical components on the heat conduction mounting plate, the uniformity of air heat dissipation in the switch cabinet can be improved.

[0010] Optionally, a bearing is embedded in the filter screen, and the middle portion of the transmission shaft is fixed in the bearing, so as to improve the stability of the rotation of the transmission shaft through the bearing.

[0011] Optionally, an opening is provided at the lower part of one end of the air inlet pipe extending out of the switch cabinet, and a protective cover is provided at the one end of the air inlet pipe extending out of the switch cabinet, so that dust scraped by the scraper can be thrown out through the opening and pass through the protective cover.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] By turning on the fan to drive the air to be filtered through the filter, the fan drives the transmission shaft to rotate, and the transmission shaft drives the wind shield and scraper synchronously. The wind shield blocks the scraping area of ​​the scraper on the filter to prevent air circulation in the scraping area of ​​the filter and affect the scraping effect of the scraper. The dust scraped by the scraper is thrown out through the opening, so that the filter can be cleaned while the fan dissipates heat, thereby reducing equipment costs and filter cleaning costs.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of an intake pipe according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the scraper structure of an embodiment of the utility model;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] Switch cabinet 1, air inlet pipe 2, filter 3, fan 4, transmission shaft 5, wind shield 6, scraper 7, air outlet pipe 8, opening 9, protective cover 10, air passing plate 11, heat conduction mounting plate 12, bearing 13.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The utility model will now be further described in detail with reference to the accompanying drawings.

[0024] See also Figure 1-4 As shown, in this embodiment, a dustproof high and low voltage switch cabinet is provided, including a switch cabinet 1, an air inlet pipe 2 is connected to one side of the switch cabinet 1, a filter screen 3 and a fan 4 are arranged in the air inlet pipe 2, a transmission shaft 5 is connected to the output end of the fan 4, a wind shield plate 6 is connected to the transmission shaft 5, a scraper 7 is connected to the side of one end of the transmission shaft 5 that passes through the filter screen 3, and a cabinet door is rotatably matched at the opening of the switch cabinet 1.

[0025] By turning on the fan 4, the air is driven to be filtered through the filter 3, the fan 4 drives the transmission shaft 5 to rotate, and the transmission shaft 5 drives the wind shield 6 and the scraper 7 synchronously. The wind shield 6 blocks the scraping area of ​​the scraper 7 on the filter 3, so as to avoid air circulation in the scraping area on the filter 3 and affect the scraping effect of the scraper 7, so that the dust scraped by the scraper 7 is thrown out through the opening 9, so that the filter 3 can be cleaned while the heat is dissipated by the fan 4, so as to reduce the equipment cost and the cost of cleaning the filter 3.

[0026] One side of the windshield 6 and scraper 7 of this embodiment is in contact with the filter 3, an air outlet pipe 8 is provided on one side of the switch cabinet 1, and a dustproof net is provided at the opening of the air outlet pipe 8. The windshield 6 and scraper 7 are both fan-shaped plate structures, and the fan-shaped area of ​​the windshield 6 is larger than the fan-shaped area of ​​the scraper 7, so that the scraping area of ​​the scraper 7 on the filter 3 can be shielded by the windshield 6, so as to avoid air circulation in the scraping area on the filter 3 and affect the scraping effect of the scraper 7, so that the dust scraped by the scraper 7 can be thrown out through the opening 9.

[0027] The switch cabinet 1 of this embodiment is connected to an air passage plate 11 on the relatively inner side. The air passage plate 11 is a hollow shell structure. A plurality of air holes are evenly distributed on the relatively inner side of the air passage plate 11. The two air passage plates 11 are respectively connected to the air inlet pipe 2 and the air outlet pipe 8. A heat conduction mounting plate 12 is provided between the two air passage plates 11. The heat conduction mounting plate 12 is provided with a plurality of electrical components so that the filtered air can be blown to the electrical components on the heat conduction mounting plate 12 through the air passage holes on the air plate 11, and then discharged into the air outlet pipe 8 through the air passage holes on the other air passage plate 11, and then discharged from the switch cabinet 1. By setting the air passage holes on the air passage plate 11 to blow the filtered air to the electrical components on the heat conduction mounting plate 12, the uniformity of air heat dissipation in the switch cabinet 1 is improved, and the uniformity of heat dissipation of the electrical components is improved.

[0028] In this embodiment, a bearing 13 is embedded in the filter screen 3, and the middle part of the transmission shaft 5 is fixed in the bearing 13, so that the bearing 13 can improve the rotation stability of the transmission shaft 5 and the synchronous rotation stability of the windshield plate 6 and the scraper 7.

[0029] In this embodiment, an opening 9 is provided at the lower part of one end of the air inlet pipe 2 extending out of the switch cabinet 1, and a protective cover plate 10 is provided at the one end of the air inlet pipe 2 extending out of the switch cabinet 1, so that dust scraped by the scraper 7 can be thrown out through the opening 9 and pass through the protective cover plate 10, so as to avoid accidental touching of the scraper 7 during operation and cause safety accidents.

[0030] Working principle: Turn on the fan 4 to drive the air to be filtered through the filter 3, and then blow it through the air holes on the air plate 11 to the electrical components on the heat transfer mounting plate 12, and then discharge it into the air outlet pipe 8 through the air holes on another air plate 11, and then discharge it out of the switch cabinet 1. By setting the air holes on the air plate 11 after filtering, the air is blown to the electrical components on the heat transfer mounting plate 12, so as to improve the uniformity of air heat dissipation in the switch cabinet 1, and to improve the uniformity of heat dissipation of the electrical components. The fan 4 drives the transmission shaft 5 to rotate, and the transmission shaft 5 drives the wind shield 6 and the scraper 7 synchronously. The wind shield 6 blocks the scraping area of ​​the scraper 7 on the filter 3, so as to avoid air circulation in the scraping area on the filter 3 and affect the scraping effect of the scraper 7, so as to facilitate the dust scraped by the scraper 7 to be thrown out through the opening 9, so as to facilitate the cleaning of the filter 3 while dissipating heat through the fan 4, so as to reduce the equipment cost and the cost of cleaning the filter 3.

[0031] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A dustproof high and low voltage switch cabinet, characterized in that: include: A switch cabinet (1), wherein one side of the switch cabinet (1) is connected to an air intake pipe (2), a filter screen (3) and a fan (4) are arranged in the air intake pipe (2), an output end of the fan (4) is connected to a transmission shaft (5), a wind shield (6) is connected to the transmission shaft (5), the transmission shaft (5) passes through the filter screen (3) and is connected to a scraper (7) at one end side thereof, and a cabinet door is rotatably matched at the opening of the switch cabinet (1).

2. The dustproof high and low voltage switch cabinet according to claim 1 is characterized in that: One side of the windshield (6) and the scraper (7) is in contact with the filter (3); one side of the switch cabinet (1) is provided with an air outlet pipe (8); the windshield (6) and the scraper (7) are both fan-shaped plate structures; the fan-shaped area of ​​the windshield (6) is larger than the fan-shaped area of ​​the scraper (7).

3. The dustproof high and low voltage switch cabinet according to claim 2 is characterized in that: The switch cabinet (1) is connected to an air passage plate (11) on the inner side thereof. The air passage plate (11) is a hollow shell structure. A plurality of air passage holes are evenly distributed on the inner side thereof. The two air passage plates (11) are respectively connected to the air inlet pipe (2) and the air outlet pipe (8).

4. The dustproof high and low voltage switch cabinet according to claim 3 is characterized in that: A heat-conducting mounting plate (12) is provided between the two air-passing plates (11), and a plurality of electrical components are provided on the heat-conducting mounting plate (12).

5. The dustproof high and low voltage switch cabinet according to claim 1, characterized in that: A bearing (13) is embedded in the filter screen (3), and the middle portion of the transmission shaft (5) is fixed in the bearing (13).

6. The dustproof high and low voltage switch cabinet according to claim 1, characterized in that: An opening (9) is provided at the lower part of one end of the air inlet pipe (2) extending out of the switch cabinet (1), and a protective cover plate (10) is provided at one end of the air inlet pipe (2) extending out of the switch cabinet (1).

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