A heat dissipating switchgear

Abstract

This invention belongs to the field of switchgear technology, specifically relating to a heat-dissipating switchgear, comprising: a cabinet; two air supply components; a dust scraper component located at the main air duct inlet of the air supply components; a sealing component; a rectangular sealing frame; an air inlet slot; a drive component mounted on the air supply components; a linkage control component mounted on the drive component, air supply components, and dust scraper components; a housing tube; and air inlet components, heat dissipation components, and exhaust components, all mounted on the housing tube. This invention addresses the problem of existing switchgear heat dissipation systems' metal filter plate maintenance solutions. Manual cleaning, while ensuring cleanliness, sacrifices continuous heat dissipation, easily leading to temperature rise failures. Automatic cleaning, while maintaining airflow, exacerbates internal contamination risks, affecting long-term operational safety. Therefore, there is an irreconcilable contradiction between continuous heat dissipation and dust prevention reliability.

Description

Technical Field

[0001] This invention belongs to the field of switch cabinet technology, and specifically relates to a heat dissipation switch cabinet. Background Technology

[0002] Switchgear, as a critical power distribution, control, and protection device in a power system, typically houses a variety of electrical components, including circuit breakers, disconnectors, instrument transformers, protection devices, and busbars. During operation, these components generate significant heat due to current flow, contact resistance, and core losses. If this heat cannot be dissipated promptly, the internal temperature of the switchgear will rise continuously, potentially leading to component performance degradation, accelerated aging of insulation materials, increased contact oxidation, and even localized overheating or malfunctions, seriously threatening the safe and stable operation of the power system. Therefore, effective heat dissipation design is crucial for ensuring the long-term reliable operation of switchgear.

[0003] Currently, most common heat dissipation solutions for switchgear employ forced air cooling. A typical structure involves an air inlet on one side of the cabinet, where an air supply component (such as a fan) is installed to deliver cooling air into the cabinet; a corresponding exhaust vent on the other side of the cabinet, equipped with an extraction component, draws the hot air, after heat exchange, out of the cabinet, thus forming a through airflow channel for convective heat dissipation. To protect the precision electrical equipment inside the cabinet from external environmental contamination, a metal filter plate is usually installed at the air inlet to intercept dust and other impurities in the air.

[0004] However, metal filter plates gradually accumulate dust over long-term use, causing mesh blockage, increased airflow resistance, and reduced air volume, severely impacting heat dissipation efficiency. Currently, there are two main methods for cleaning dust from metal filter plates:

[0005] 1. Manual periodic cleaning method: Maintenance personnel remove the metal filter screen for cleaning. Although this method can thoroughly remove accumulated dust, the air supply components must be stopped during the cleaning operation. The airflow inside the cabinet is interrupted, and the heat source continues to generate heat without being effectively discharged. This can cause the temperature inside the cabinet to rise significantly in a short period of time, which may cause thermal shock to the operating equipment and easily affect the normal operation of the cabinet.

[0006] 2. Online Automatic Scraping Method: A mechanical automatic scraping or cleaning device is installed at the air inlet, which is activated periodically to scrape away dust and dirt from the surface of the metal filter plate. This method does not require shutdown, maintaining the continuous operation of the heat dissipation system. However, it has a significant drawback: during the scraping process, the air supply components usually continue to operate normally, and the airflow will directly blow the loosened or peeled dust particles into the cabinet, affecting the contact reliability and heat dissipation of electrical components inside the cabinet, creating a potential safety hazard.

[0007] Therefore, the existing maintenance solutions for metal filter plates in switchgear heat dissipation systems rely on manual cleaning, which ensures cleanliness but sacrifices continuous heat dissipation and is prone to causing temperature rise failures. Relying on automatic cleaning, while maintaining smooth airflow, exacerbates the risk of internal contamination and affects long-term operational safety. Thus, there is an irreconcilable contradiction between the continuity of heat dissipation and the reliability of dust prevention. Summary of the Invention

[0008] Based on the problems mentioned in the background technology above, the present invention provides a heat dissipation switch cabinet to solve the problem of the maintenance scheme of the metal filter plate of the existing switch cabinet heat dissipation system. Although manual cleaning ensures cleanliness, it sacrifices continuous heat dissipation and is prone to temperature rise failure. Although automatic cleaning maintains airflow, it exacerbates the risk of internal contamination and affects long-term operational safety. Therefore, there is an irreconcilable contradiction between heat dissipation continuity and dust prevention reliability.

[0009] The technical solution adopted in this invention is as follows:

[0010] A heat-dissipating switch cabinet, comprising:

[0011] The cabinet has two opposing assembly holes on the top two sides and two opposing assembly holes on the bottom two sides.

[0012] The air supply assembly has two components, which are respectively installed in assembly hole one and assembly hole two on the left side of the cabinet. The air supply assembly is provided with a main air duct and a secondary air duct, and the main air duct is located inside the secondary air duct.

[0013] A dust scraper assembly is installed at the inlet of the main air duct of the air supply assembly;

[0014] A sealing component is hinged at the outlet of the main air duct of the air supply component;

[0015] A rectangular sealing frame plate, which is hinged at the inlet of the secondary air duct of the air supply assembly;

[0016] An air inlet slot is provided between the main air duct and the secondary air duct.

[0017] A drive assembly is mounted on the air supply assembly and is used to synchronously drive the sealing assembly and the rectangular sealing frame plate to achieve 90° reciprocating rotation.

[0018] The linkage control component is installed on the drive component, the air supply component, and the dust scraper component, and is located inside the main air duct. It is used to control the connection / disconnection of the air supply component and the dust scraper component while the sealing component and the rectangular sealing frame plate achieve 90° reciprocating rotation.

[0019] The cabinet has two tubes, which are respectively located between the assembly hole one and the assembly hole two on the right side of the cabinet and the corresponding air supply component outlet end.

[0020] The unit includes an air intake component, a heat dissipation component, and an exhaust component. All three components are mounted on the housing pipe, and the inlet of the exhaust component extends to the inner middle of the cabinet.

[0021] Based on the above technical solution, the present invention has made the following improvements:

[0022] Furthermore, the air supply assembly includes an outer air box shell and an inner air box shell. An outer air box shell is installed in both assembly hole one and assembly hole two on the left side of the cabinet. The inner air box shell is installed inside the outer air box shell by a bracket. The interior of the inner air box shell is the main air duct. The inner wall of the outer air box shell and the outer wall of the inner air box shell are spaced apart to form a secondary air duct. The air inlet slot is installed through the top and bottom walls of the inner air box shell. A baffle is installed on the side of the air inlet slot located in the secondary air duct. A metal filter plate is installed at the inlet of the inner air box shell. A conical sleeve is installed around the filter hole on the side wall of the metal filter plate located outside the inner air box shell. A rectangular filter plate is installed at the inlet of the secondary air duct.

[0023] A motor is installed at the bottom of the outer air box shell. A rotating shaft is rotatably installed at the bottom of both the outer and inner air box shells. The end of the rotating shaft extending to the outside of the bottom of the outer air box shell is connected to the main shaft of the motor. A bevel gear is installed at the end of the rotating shaft inside the inner air box shell. A rotating shaft is rotatably installed inside the inner air box shell via a mounting base. A bevel gear is installed on the rotating shaft, which meshes with the bevel gear. A fan blade is installed on the rotating shaft, which is located outside the outlet of the inner air box shell and at the outlet of the outer air box shell.

[0024] Furthermore, the dust scraping assembly includes a vertical frame and a mounting shaft. The vertical frame is disposed on the top inner wall at the inlet of the inner air box shell. The mounting shaft is rotatably disposed at the end of the vertical frame and located at the center of the metal filter plate. Two scrapers are disposed on the mounting shaft, one of which is attached to the inner side of the metal filter plate and the other scraper is attached to the outer side of the metal filter plate.

[0025] Furthermore, the sealing assembly includes two door hinges, both of which are vertically rotatable between the upper and lower side walls at the outlet of the inner air box shell. Each of the two door hinges is equipped with a sealing door, and both sealing doors are located inside the outlet of the inner air box shell. The rectangular sealing frame plate is hinged at the inlet of the outer air box shell and can be flipped to cover the outer side wall of the rectangular filter plate.

[0026] Furthermore, the drive assembly includes a servo motor and a rotating shaft three. The servo motor is mounted on the top of the outer air box housing. The rotating shaft three is vertically rotatable within the tops of the outer and inner air box housings and located between the two door hinges. The servo motor spindle is connected to the top of the rotating shaft three. Synchronous pulley one is provided on the rotating shaft three and on the tops of the two door hinges. The three synchronous pulleys one are connected together by a synchronous belt one. Synchronous pulley five is provided on the rotating shaft three. Synchronous pulley six is ​​provided on the hinge shaft of the rectangular sealing plate. Synchronous pulley five is connected to synchronous pulley six through synchronous belt three.

[0027] Furthermore, the linkage control component includes a horizontal frame, a sleeve, and a mounting groove. The horizontal frame is set on the side wall of the vertical frame, and an assembly shaft is rotatably mounted on the horizontal frame. A cam is set at the bottom of the assembly shaft, and a synchronous pulley four is set at the top. A synchronous pulley three is set at the bottom of the rotating shaft three, and the synchronous pulley three is connected to the synchronous pulley four through a synchronous belt two.

[0028] The sleeve is slidably sleeved on the shaft of the second rotating shaft near the inlet of the inner air box shell. Two fixing blocks are arranged opposite each other on the shaft end of the second rotating shaft near the inlet of the inner air box shell. A stabilizing column is provided on the side of the two fixing blocks opposite to the sleeve. The sleeve is slidably sleeved on the stabilizing column. A return spring is sleeved on the stabilizing column located between the fixing block and the opposite side of the sleeve.

[0029] Two mounting slots are provided, and they are arranged opposite each other on the shaft end of the second rotating shaft near the inlet of the inner air box shell. Both mounting slots are hinged with arc-shaped sleeves. Both arc-shaped sleeves are provided with rubber anti-slip teeth one on their inner arc-shaped walls. The end of the mounting shaft located inside the inner air box shell is provided with rubber anti-slip teeth two on its peripheral wall. Both mounting slots are provided with mounting cylinders at the bottom. Both mounting cylinders are provided with a stop post and a stop spring. The stop spring is located between the inner bottom of the mounting cylinder and the end of the stop post.

[0030] Furthermore, the box tube is located between the assembly hole one and assembly hole two on the right side of the cabinet and the corresponding outer air box shell outlet side wall, and a partition is provided inside the box tube;

[0031] The air intake component includes a cold air cavity and air spray nozzles. The cold air cavity is located between the inner wall of the box tube near the middle of the cabinet and the side wall of the partition near the middle of the cabinet. Multiple air spray nozzles are arranged in an array on the side wall of the box tube near the middle of the cabinet, and each air spray nozzle is connected to the cold air cavity.

[0032] Furthermore, the heat dissipation component includes a heat dissipation cavity and a heat insulation sleeve. The heat dissipation cavity is located between the inner wall of the tube away from the middle of the cabinet and the side wall of the partition away from the middle of the cabinet. A grid plate is provided at the right cavity opening of the heat dissipation cavity. Multiple heat insulation sleeves are provided and are arranged in a horizontal array in the cold air cavity. Each heat insulation sleeve is fitted with a heat-conducting rod. One end of each heat-conducting rod extends to the outside of the side wall of the tube near the middle of the cabinet, and the other end extends into the heat dissipation cavity and is jointly provided with multiple heat dissipation fins.

[0033] Furthermore, the exhaust component includes an exhaust duct, which is installed in the heat dissipation cavity via a support rod. The end of the exhaust duct near the outer air box shell is closed. One end of the rotating shaft extends into the exhaust duct and is equipped with a fan blade. Two heat exhaust main pipes are arranged opposite each other on the exhaust duct. The ends of the two heat exhaust main pipes extend to the outside of the side wall of the cabinet near the middle of the tube and are located on the left and right inner side walls of the cabinet. Multiple heat exhaust branch pipes are clamped on the two heat exhaust main pipes. Each heat exhaust branch pipe extends to the middle of the cabinet and has multiple openings arranged in an array.

[0034] Furthermore, the inner wall of the cold air cavity, the heat insulation sleeve located in the cold air cavity, and the outer peripheral wall of the heat exhaust pipe are all provided with heat insulation coatings; the synchronous pulleys one, three, four, five, and six are all of the same specification and size; and a controller is provided on the outside of the cabinet.

[0035] The beneficial effects of this invention are:

[0036] 1. Through the combination of an air supply component, main air duct, secondary air duct, dust scraper component, sealing component, rectangular sealing frame plate, air inlet slot, drive component, and linkage control component, the air supply component can deliver air into the cabinet. The drive component can simultaneously drive the sealing component and rectangular sealing frame plate to rotate 90° back and forth, realizing the air supply conversion between the main air duct and the secondary air duct. The linkage control component is used to control the connection / disconnection of the air supply component and the dust scraper component while the sealing component and rectangular sealing frame plate are rotating 90° back and forth. When dust cleaning is not required, the secondary air duct is closed, and cooling air is delivered through the main air duct. When dust cleaning is required, the main air duct is closed, and cooling air is delivered through the secondary air duct. Therefore, cooling air is delivered into the cabinet regardless of whether dust cleaning is required, thus solving the irreconcilable contradiction between heat dissipation continuity and dust prevention reliability.

[0037] 2. Furthermore, during the process of cooling air being transported through the secondary air duct, the dust scraping component is also simultaneously linked with the air supply component through the linkage control component, so that the dust scraping component also starts to clean the metal filter plate on the air supply component. At the same time, when the cooling air is transported through the secondary air duct, some of the cooling air can also enter the main air duct through the air inlet, thereby forcing out the dust inside the main air duct and preventing dust from remaining in the main air duct.

[0038] 3. Through the combination of the set box pipe, air inlet component, heat dissipation component and exhaust component, when the cooling air is delivered through the main air duct or the secondary air duct, the cooling air will enter the box pipe. The part of the cooling air entering the box pipe can be delivered into the cabinet under the action of the air inlet component to cool the cabinet.

[0039] 4. After the cooling air enters the housing pipe, some of the cooling air, combined with the heat dissipation components, can dissipate the heat inside the cabinet, thus making full use of the cooling air entering the housing pipe.

[0040] 5. At the same time, the driving force of the air supply component is combined with the exhaust component, so that the exhaust component can exhaust the hot air inside the cabinet, achieving heat dissipation through exhaust, avoiding the need to set up other exhaust fans for heat dissipation, thus achieving the effect of reducing consumption and saving energy. Attached Figure Description

[0041] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0042] Figure 1 The present invention relates to a heat-dissipating switch cabinet structure. Figure 1 ;

[0043] Figure 2 The present invention relates to a heat-dissipating switch cabinet structure. Figure 2 ;

[0044] Figure 3 An explosion of a heat-dissipating switchgear according to the present invention Figure 1 ;

[0045] Figure 4 An explosion of a heat-dissipating switchgear according to the present invention Figure 2 ;

[0046] Figure 5 This is the internal state of some components in a heat-dissipating switch cabinet according to the present invention. Figure 1 ;

[0047] Figure 6 This is the internal state of some components in a heat-dissipating switch cabinet according to the present invention. Figure 2 ;

[0048] Figure 7This invention relates to the internal structure of some components in a heat-dissipating switchgear. Figure 1 ;

[0049] Figure 8 This invention relates to the internal structure of some components in a heat-dissipating switchgear. Figure 2 ;

[0050] Figure 9 This invention relates to the internal structure of some components in a heat-dissipating switchgear. Figure 3 ;

[0051] Figure 10 This is a structural diagram of some components in a heat-dissipating switch cabinet according to the present invention;

[0052] Figure 11 for Figure 7 A magnified view of region A in the middle.

[0053] The attached diagram is labeled as follows:

[0054] 101. Cabinet body; 102. Electrical component one; 103. Electrical component two; 104. Assembly hole one; 105. Assembly hole two; 106. Cabinet door; 201. Outer air box shell; 202. Card holder; 203. Inner air box shell; 204. Metal filter plate; 205. Rectangular filter plate; 206. Conical sleeve; 207. Rectangular sealing frame plate; 301. Motor; 302. Rotating shaft one; 303. Bevel gear one; 304. Mounting bracket; 305, Shaft 2; 306, Fan blade 1; 307, Bevel gear 2; 401, Servo motor; 402, Shaft 3; 403, Synchronous pulley 1; 404, Door hinge; 405, Synchronous belt 1; 406, Enclosed door; 501, Vertical frame; 502, Horizontal frame; 503, Mounting shaft; 504, Scraper; 601, Synchronous pulley 3; 602, Assembly shaft; 603, Synchronous pulley 4; 604, Synchronous belt 2 605. Cam; 606. Sleeve; 607. Mounting slot; 608. Arc-shaped sleeve; 609. Mounting cylinder; 610. Abutment; 611. Abutment spring; 612. Fixing block; 613. Stabilizing column; 614. Return spring; 615. Rubber anti-slip tooth one; 616. Rubber anti-slip tooth two; 701. Air inlet slot; 702. Baffle; 801. Box tube; 802. Partition; 803. Cold air cavity; 80 4. Heat dissipation cavity; 805. Grid plate; 901. Air jet slot; 1001. Heat insulation sleeve; 1002. Heat conduction rod; 1003. Heat sink; 1101. Exhaust duct; 1102. Support rod; 1103. Fan blade two; 1104. Main heat dissipation pipe; 1105. Branch heat dissipation pipe; 1106. Opening; 1201. Synchronous pulley five; 1202. Synchronous pulley six; 1203. Synchronous belt three; 13. Controller. Detailed Implementation

[0055] like Figures 1 to 11As shown, a heat-dissipating switch cabinet includes:

[0056] The cabinet 101 has an electrical component 102 located in the upper middle part and an electrical component 103 located in the lower middle part. The cabinet door 106 is located at the cabinet opening, which constitutes a switch cabinet with basic functions. During the use of the switch cabinet, both electrical component 102 and electrical component 103 will generate heat, causing the temperature inside the switch cabinet to rise.

[0057] The top two sides of the cabinet 101 are provided with assembly holes 104 facing each other, and the bottom two sides are provided with assembly holes 105 facing each other. There are two air supply components, which are respectively installed in the assembly holes 104 and 105 on the left side of the cabinet 101, so that the top and bottom of the cabinet 101 are provided with heat dissipation components.

[0058] The air supply assembly is equipped with a main air duct and a secondary air duct. The main air duct is located inside the secondary air duct. The air supply assembly includes an outer air box shell 201 and an inner air box shell 203. An outer air box shell 201 is installed in both the first assembly hole 104 and the second assembly hole 105 on the left side of the cabinet 101. The inner air box shell 203 is installed inside the outer air box shell 201 through a bracket 202. The interior of the inner air box shell 203 is the main air duct. The space between the inner wall of the outer air box shell 201 and the outer wall of the inner air box shell 203 forms the secondary air duct.

[0059] An air inlet 701 is provided through the top and bottom walls of the inner air box shell 203, and a baffle 702 is provided on the side of the air inlet 701 located in the secondary air duct. The baffle 702 allows some of the cooling air to enter the main air duct during the process of cooling air being transported through the secondary air duct, and then blow it out from the entrance of the main air duct.

[0060] A metal filter plate 204 is installed at the inlet of the inner air box shell 203. The metal filter plate 204 can intercept dust at the inlet of the main air duct to prevent dust from entering the interior of the main air duct. A conical sleeve 206 is installed around the filter holes on the side wall of the metal filter plate 204 outside the inner air box shell 203. The conical sleeve 206 can guide the dust scraped off the metal filter plate 204 away from the inlet of the secondary air duct to prevent dust from entering the secondary air duct. A rectangular filter plate 205 is installed at the inlet of the secondary air duct to intercept dust at the inlet of the secondary air duct to prevent dust from entering the interior of the secondary air duct.

[0061] See Figures 5 to 10A motor 301 is installed at the bottom of the outer air box shell 201. A rotating shaft 302 is installed at the bottom of the outer air box shell 201 and the inner air box shell 203. The end of the rotating shaft 302 extending to the bottom of the outer air box shell 201 is connected to the main shaft of the motor 301. A bevel gear 303 is installed at the end of the rotating shaft 302 located inside the inner air box shell 203. By using the motor 301 to drive the rotating shaft 302 to rotate, the bevel gear 303 can be driven to rotate.

[0062] Inside the inner air box shell 203, a rotating shaft 305 is rotatably mounted via a mounting base 304. A bevel gear 307 meshes with a bevel gear 303 on the rotating shaft 305. A fan blade 306 is mounted on the rotating shaft 305. The fan blade 306 is located outside the outlet of the inner air box shell 203 and at the outlet of the outer air box shell 201. When the bevel gear 303 rotates, it can drive the rotating shaft 305 and the fan blade 306 to rotate after meshing with the bevel gear 307. During the rotation of the fan blade 306, external cooling air can be drawn in through the main air duct / sub-air duct inlet and discharged to the outlet of the outer air box shell 201.

[0063] See Figure 5 The dust scraping assembly is located at the main air duct inlet of the air supply assembly. The dust scraping assembly includes a vertical frame 501 and a mounting shaft 503. The vertical frame 501 is located on the top inner wall of the inner air box shell 203 inlet. The mounting shaft 503 is rotatably mounted at the end of the vertical frame 501 and located at the center of the metal filter plate 204. Two scrapers 504 are mounted on the mounting shaft 503, allowing for the assembly of the two scrapers 504. One scraper 504 is attached to the inner side of the metal filter plate 204, and the other scraper 504 is attached to the outer side of the metal filter plate 204. When the mounting shaft 503 rotates, it drives the two scrapers 504 to rotate along the inner and outer walls of the metal filter plate 204 respectively, scraping off and cleaning the accumulated dust on the metal filter plate 204.

[0064] See Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10 The sealing assembly is hinged at the main air duct outlet of the air supply assembly. The sealing assembly includes two door hinges 404, both of which are vertically rotatable between the upper and lower side walls at the outlet of the inner air box shell 203. Each door hinge 404 has a sealing door 406, both of which are located inside the outlet of the inner air box shell 203. Both door hinges 404 can rotate. When the two sealing doors 406 rotate to a parallel position (…), Figure 5 , Figure 9 As shown), the outlet of the main air duct is open; when the two closed doors 406 rotate to the same plane ( Figure 6As shown in the diagram, the outlet of the main air duct is closed.

[0065] A rectangular sealing plate 207 is hinged at the inlet of the secondary air duct of the air supply assembly. The rectangular sealing plate 207 is also hinged at the inlet of the outer air box shell 201 and can be flipped to cover the outer wall of the rectangular filter plate 205. The rectangular sealing plate 207 can rotate around the hinge point at the inlet of the outer air box shell 201. When the two closed doors 406 are parallel, the rectangular sealing plate 207 covers the outer wall of the rectangular filter plate 205, making the outlet of the main air duct open and the inlet of the secondary air duct closed. When the two closed doors 406 are on the same plane, the rectangular sealing plate 207 is not covered on the outer wall of the rectangular filter plate 205, making the outlet of the main air duct closed and the inlet of the secondary air duct open.

[0066] Without cleaning the dust accumulated on the metal filter plate 204, the outlet of the main air duct is open and the inlet of the secondary air duct is closed, meaning that cooling air is delivered by the main air duct; with cleaning the dust accumulated on the metal filter plate 204, the outlet of the main air duct is closed and the inlet of the secondary air duct is open, meaning that cooling air is delivered by the secondary air duct.

[0067] See Figure 6 An air inlet 701 is located between the main air duct and the secondary air duct. The air inlet 701 is installed on the top and bottom walls of the inner air box shell 203. A baffle 702 is installed on the side of the air inlet 701 located in the secondary air duct. When the outlet of the main air duct is closed and the inlet of the secondary air duct is open, allowing cooling air to be transported by the secondary air duct, some of the cooling air in the secondary air duct can be injected into the main air duct through the air inlet 701 under the shielding effect of the baffle 702. This creates positive air pressure inside the main air duct, causing the cooling air injected into the main air duct to be blown back out from the inlet of the main air duct.

[0068] See Figure 5 , Figure 6 , Figure 8 , Figure 9 , Figure 10The drive assembly is mounted on the air supply assembly and includes a servo motor 401 and a rotating shaft 402. The servo motor 401 is located on the top of the outer air box housing 201, and its main shaft can rotate 90° in both directions. The rotating shaft 402 is vertically rotatable within the top of the outer air box housing 201 and the inner air box housing 203, and is located between two door hinges 404. The main shaft of the servo motor 401 is connected to the top of the rotating shaft 402, and the servo motor 401 can drive the rotating shaft 402. 02. Achieve 90° reciprocating rotation in both directions; Synchronous pulleys 403 are installed on the rotating shaft 402 and at the top of the two door shafts 404. The three synchronous pulleys 403 are connected by a synchronous belt 405. When the rotating shaft 402 achieves 90° reciprocating rotation in both directions, the meshing belt drive between each synchronous pulley 403 and the synchronous belt 405 drives the two closed doors 406 to rotate synchronously and in the same direction, causing the two closed doors 406 to rotate in a parallel state. Figure 5 As shown), the same plane state ( Figure 6 (as shown)

[0069] A synchronous pulley five 1201 is installed on the rotating shaft three 402, and a synchronous pulley six 1202 is installed on the hinge shaft of the rectangular sealing frame plate 207. The synchronous pulley five 1201 is connected to the synchronous pulley six 1202 through the synchronous belt three 1203. The synchronous pulleys one 403, five 1201, and six 1202 are all of the same specification and size, so that during the 90° forward and reverse reciprocating rotation of the rotating shaft three 402, the synchronous pulleys five 1201, three 1203, and six 1202 pass through the synchronous pulleys three 1201, three 1203, and six 1202. After the meshing belt drives the rectangular sealing plate 207, it can synchronously drive the rectangular sealing plate 207 to rotate 90° in both directions. When the two closed doors 406 rotate in a parallel state, the rectangular sealing plate 207 is on the outside of the rectangular filter plate 205. When the two closed doors 406 rotate in the same plane, the rectangular sealing plate 207 is not on the outside of the rectangular filter plate 205. Ultimately, when the outlet of the main air duct is closed, the inlet of the secondary air duct is open, and when the outlet of the main air duct is open, the inlet of the secondary air duct is closed.

[0070] See Figures 5 to 11The linkage control component is installed on the drive component, air supply component, and dust scraper component, and is located inside the main air duct. The linkage control component includes a horizontal frame 502, a sleeve plate 606, and a mounting groove 607. The horizontal frame 502 is installed on the side wall of the vertical frame 501. An assembly shaft 602 is rotatably mounted on the horizontal frame 502. A cam 605 is installed at the bottom of the assembly shaft 602, and a synchronous pulley 603 is installed at the top. A synchronous pulley 601 is installed at the bottom of the rotating shaft 402. The synchronous pulley 601 is connected to the synchronous pulley 603 via a synchronous belt 604. The synchronous pulleys 403, 601, and 603 are all of the same size. When the two closed doors 406 and the rectangular sealing frame 207 rotate counterclockwise (with... Figure 9 (The diagram shown can be used to confirm the counterclockwise and clockwise directions). After the synchronous belt drives the assembly shaft 602 to rotate counterclockwise synchronously through the meshing belt of synchronous pulley 3 601, synchronous belt 2 604 and synchronous pulley 4 603.

[0071] The sleeve 606 is slidably sleeved on the shaft of the second rotating shaft 305 near the inlet of the inner air box shell 203. Two fixing blocks 612 are arranged opposite each other on the shaft end of the second rotating shaft 305 near the inlet of the inner air box shell 203. Each of the two fixing blocks 612 is provided with a stabilizing column 613 on the side of the sleeve 606. The sleeve 606 is slidably sleeved on the stabilizing column 613, thereby realizing the slidable sleeve 606 on the shaft of the second rotating shaft 305 near the inlet of the inner air box shell 203, so that the sleeve 606 can only slide along the axial direction of the shaft. A return spring 614 is sleeved on the stabilizing column 613 located between the fixing block 612 and the opposite side of the sleeve 606. The return spring 614 can push the sleeve 606 to move away from the metal filter plate 204.

[0072] When the assembly shaft 602 rotates counterclockwise, it drives the cam 605 to rotate counterclockwise. During the counterclockwise rotation, the protrusion of the cam 605 can abut against the sleeve 606, causing the return spring 614 to compress and store force, causing the sleeve 606 to move in the direction close to the metal filter plate 204.

[0073] Two mounting slots 607 are provided, facing each other on the shaft end of the second rotating shaft 305 near the inlet of the inner air box shell 203. Each mounting slot 607 has a hinged arc-shaped sleeve 608, which can rotate within the mounting slot. Rubber anti-slip teeth 615 are provided on the arc-shaped walls of both arc-shaped sleeves 608. Rubber anti-slip teeth 616 are provided on the peripheral wall of the end of the mounting shaft 503 located inside the inner air box shell 203. Each mounting slot 607 has a mounting cylinder 609 at its bottom, and each mounting cylinder 609 contains a stop post 610 and a stop spring 611. The stop spring 611 is located between the bottom of the mounting cylinder 609 and the end of the stop post 610. Between; when the cam 605 rotates 90° counterclockwise, the sleeve 606 moves along the direction close to the metal filter plate 204 and is fitted onto the root of the two arc-shaped sleeves 608, so that the two arc-shaped sleeves 608 close, and the rubber anti-slip teeth 615 on the two arc-shaped sleeves 608 are tightly clamped onto the rubber anti-slip teeth 616 on the mounting shaft 503, thus completing the connection between the rotating shaft 305 and the mounting shaft 503. This allows the mounting shaft 503 to rotate synchronously during the rotation of the rotating shaft 305, that is, to drive the two scrapers 504 to rotate against the inner and outer walls of the metal filter plate 204 respectively, so as to scrape off and clean the dust accumulated on the metal filter plate 204.

[0074] When the dust on the metal filter plate 204 is not cleaned during normal use, the two closed doors 406 rotate in a parallel state, and the rectangular sealing plate 207 is in a state of covering the outside of the rectangular filter plate 205. That is, the outlet of the main air duct is open and the inlet of the secondary air duct is closed. At this time, when the rotating shaft 2 305 rotates and drives the fan blade 1 306 to rotate, the external cooling air can be drawn in through the inlet of the main air duct (metal filter plate 204) and discharged to the outlet of the outer air box shell 201.

[0075] Furthermore, a controller 13 is installed on the outside of the cabinet 101. The controller 13 has a built-in timed start program, which is set to start the servo motor 401 for five minutes every Monday at 12:00 noon. When the time reaches the Monday at 12:00 noon set in the controller 13, the controller 13 controls the main shaft of the servo motor 401 to rotate 90° counterclockwise and maintain this position for five minutes, causing the rotating shaft 402 to rotate 90° counterclockwise. After being driven by the meshing belt of the synchronous pulley 1201, synchronous belt 1203, and synchronous pulley 1202, the rectangular sealing plate 207 is driven to rotate 90° counterclockwise, so that the rectangular sealing plate 207... 7. The cover is not fastened on the outside of the rectangular filter plate 205, i.e., the secondary air duct inlet is open; simultaneously, after being driven by the meshing belts of each synchronous pulley 403 and synchronous belt 405, the two closed doors 406 are driven to rotate synchronously 90° counterclockwise, so that the two closed doors 406 can rotate to the same plane, i.e., the main air duct outlet is closed; and after being driven by the meshing belts of synchronous pulley 601, synchronous belt 604 and synchronous pulley 603, the assembly shaft 602 is driven to rotate synchronously 90° counterclockwise, so that the cam 605 rotates 90° counterclockwise, causing the protrusion of the cam 605 to abut against the sleeve 606, so that the return spring 614 is compressed. Force causes the sleeve 606 to move along the direction close to the metal filter plate 204 and fit onto the root of the two arc-shaped sleeves 608, so that the two arc-shaped sleeves 608 close, and the rubber anti-slip teeth 615 on the two arc-shaped sleeves 608 tightly clamp onto the rubber anti-slip teeth 616 on the mounting shaft 503, completing the connection between the rotating shaft 305 and the mounting shaft 503. Finally, during the rotation of the rotating shaft 305, the mounting shaft 503 can be driven to rotate synchronously, that is, the two scrapers 504 are driven to rotate against the inner and outer walls of the metal filter plate 204 for five minutes respectively, so as to scrape off the accumulated dust on the metal filter plate 204. During the cleaning process, while the dust on the metal filter plate 204 is scraped off, the cooling air is drawn into the secondary air duct from the inlet (rectangular filter plate 205) and then discharged to the outlet of the outer air box shell 201. During the process of the cooling air being transported from the secondary air duct, some of the cooling air in the secondary air duct can be injected into the main air duct through the air inlet 701 under the shielding effect of the baffle 702, so that there is positive air pressure inside the main air duct, which causes the cooling air injected into the main air duct to be blown out from the inlet of the main air duct, so that the dust scraped off the metal filter plate 204 is blown out from the inlet of the main air duct, thus preventing the scraped dust from remaining in the main air duct.

[0076] When the five-minute timeout period is reached, i.e., five minutes of cleaning has been completed, the controller 13 controls the main shaft of the servo motor 401 to rotate 90° clockwise (return). After transmission through the corresponding components, the two closed doors 406 rotate to a parallel state, i.e., the main air duct outlet opens, and the rectangular sealing plate 207 rotates and covers the outside of the rectangular filter screen plate 205, i.e., the secondary air duct inlet closes. At the same time, the cam 605 rotates, causing the cam 605 to release its abutment against the sleeve plate 606. At this time, the compressed and stored return spring 614 rebounds and pushes the sleeve plate 606 away from the metal filter screen plate 204, releasing the sleeve from the two... At the root of the arc-shaped sleeve 608, under the action of the abutment spring 611, the abutment post 610 abuts the root of the arc-shaped sleeve 608, causing the two arc-shaped sleeves 608 to open, releasing the gripping of the rubber anti-slip teeth 616 on the mounting shaft 503, disconnecting the connection between the rotating shaft 305 and the mounting shaft 503, causing the scraper 504 to stop scraping dust, and causing the cooling air to be transported through the main air duct. Therefore, the cooling air is ultimately transported into the cabinet 101 regardless of whether dust is cleaned or not, thus solving the irreconcilable contradiction between heat dissipation continuity and dust prevention reliability.

[0077] See Figures 1 to 4 There are two box tubes 801. The box tubes 801 are located between the assembly hole 104 and the assembly hole 105 on the right side of the cabinet 101 and the corresponding outer air box shell 201 outlet side wall. A partition 802 is installed inside the box tube 801.

[0078] See Figures 5 to 8 The air intake component includes a cold air cavity 803 and air spray nozzles 901. The cold air cavity 803 is located between the inner wall of the housing tube 801 near the middle of the cabinet 101 and the side wall of the partition 802 near the middle of the cabinet 101. The inner wall of the cold air cavity 803 is provided with a heat insulation coating. When the cooling air is discharged from the outlet of the outer air box shell 201, some of the cooling air can enter the cold air cavity 803. The heat insulation coating can play a heat insulation role, preventing the heat in the cabinet 101 from being transferred to the cold air cavity 803, so that the cooling air in the cold air cavity 803 will not heat up. Multiple air spray nozzles 901 are arranged in an array on the side wall of the housing tube 801 near the middle of the cabinet 101. Each air spray nozzle 901 is connected to the cold air cavity 803. When some of the cooling air can enter the cold air cavity 803, the cooling air can be blown into the cabinet 101 to cool the cabinet 101.

[0079] See Figures 5 to 7The heat dissipation component includes a heat dissipation cavity 804 and a heat insulation sleeve 1001. The heat dissipation cavity 804 is located between the inner wall of the housing tube 801 away from the middle of the cabinet 101 and the side wall of the partition plate 802 away from the middle of the cabinet 101. A grid plate 805 is provided at the right cavity opening of the heat dissipation cavity 804. Multiple heat insulation sleeves 1001 are provided and are arranged in a horizontal array in the cold air cavity 803. Each heat insulation sleeve 1001 is fitted with a heat-conducting rod 1002. One end of each heat-conducting rod 1002 extends to the outside of the side wall of the housing tube 801 near the middle of the cabinet 101, and the other end extends into the heat dissipation cavity 804 and is provided with multiple heat dissipation fins 100. 3. A heat insulation coating is provided on the outer peripheral wall of the heat insulation sleeve 1001 located in the cold air cavity 803. When the cooling air is discharged from the outlet of the outer air box shell 201, part of the cooling air can enter the heat dissipation cavity 804 and blow out to the grid plate 805. The heat conduction rod 1002 can concentrate the heat in the cabinet 101 to each heat sink 1003. Then, the cooling air flowing in the heat dissipation cavity 804 blows the heat on the heat sink 1003 out from the grid plate 805 for heat dissipation. The heat insulation coating on the outer peripheral wall of the heat insulation sleeve 1001 located in the cold air cavity 803 can prevent the heat absorbed by the heat conduction rod 1002 from being transferred to the cold air cavity 803.

[0080] See Figure 2 , Figure 5 , Figure 7 The exhaust system includes an exhaust duct 1101, which is installed inside the heat dissipation cavity 804 via a support rod 1102. The end of the exhaust duct 1101 near the outer air box shell 201 is closed. One end of the rotating shaft 305 extends into the exhaust duct 1101 and is equipped with a fan blade 1103. Two opposing heat exhaust main pipes 1104 are arranged on the exhaust duct 1101. The ends of both heat exhaust main pipes 1104 extend to the outer side wall of the tube 801 near the middle of the cabinet 101, and are located on the left and right inner side walls of the cabinet 101. A heat insulation coating is provided on the outer peripheral wall of the heat exhaust main pipes 1104 located inside the cold air cavity 803. Multiple heat exhaust branch pipes 1105 are clamped onto each of the two heat exhaust main pipes 1104. All heat exhaust pipes 1105 extend to the middle of the cabinet 101, and each heat exhaust pipe 1105 has multiple openings 1106 arranged in an array. When the rotating shaft 305 rotates, it can drive the fan blades 1103 to rotate. When the fan blades 1103 rotate, they can draw air into the exhaust duct 1101, causing the air to be blown out towards the grid plate 805. During the blowing process, the heat in the cabinet 101 can be drawn into the heat exhaust pipes 1105 through each opening 1106, then into the main heat exhaust pipe 1104, and finally into the exhaust duct 1101. Under the action of the rotation of the fan blades 1103, it is drawn out to achieve the purpose of heat exhaust and heat dissipation, avoiding the need to set up other exhaust fans for heat exhaust and heat dissipation, thus achieving the effect of reducing energy consumption.

[0081] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A heat-dissipating switch cabinet, characterized in that: include: The cabinet (101) has assembly holes 1 (104) facing each other on both sides of the top and assembly holes 2 (105) facing each other on both sides of the bottom. The air supply assembly has two parts, which are respectively installed in the assembly hole one (104) and assembly hole two (105) on the left side of the cabinet (101). The air supply assembly is provided with a main air duct and a secondary air duct, and the main air duct is located inside the secondary air duct. A dust scraper assembly is installed at the inlet of the main air duct of the air supply assembly; A sealing component is hinged at the outlet of the main air duct of the air supply component; A rectangular sealing frame plate (207) is hinged at the inlet of the secondary air duct of the air supply assembly; An air inlet (701) is provided between the main air duct and the secondary air duct; A drive component is provided on the air supply component and is used to synchronously drive the sealing component and the rectangular sealing frame plate (207) to achieve 90° reciprocating rotation; The linkage control component is installed on the drive component, the air supply component, and the dust scraper component, and is located inside the main air duct. It is used to control the connection / disconnection of the air supply component and the dust scraper component while the sealing component and the rectangular sealing frame plate (207) achieve 90° reciprocating rotation. Box tube (801), two box tubes (801) are provided, and are respectively located between the assembly hole one (104) and the assembly hole two (105) on the right side of the cabinet (101) and the corresponding air supply component outlet end; Air intake component, heat dissipation component, and exhaust component are all installed on the box tube (801), and the inlet of the exhaust component extends to the inner middle of the cabinet (101).

2. The heat-dissipating switch cabinet according to claim 1, characterized in that: The air supply assembly includes an outer air box shell (201) and an inner air box shell (203). An outer air box shell (201) is installed in both the first assembly hole (104) and the second assembly hole (105) on the left side of the cabinet (101). The inner air box shell (203) is installed inside the outer air box shell (201) by a bracket (202). The interior of the inner air box shell (203) is the main air duct, and the inner wall of the outer air box shell (201) and the outer wall of the inner air box shell (203) are spaced apart to form a secondary air duct. The air inlet slot (701) is provided through the top and bottom walls of the inner air box shell (203), and a baffle (702) is provided on the side of the air inlet slot (701) located in the secondary air duct. A metal filter plate (204) is provided at the inlet of the inner air box shell (203). A conical sleeve (206) is provided around the filter holes on the side wall of the metal filter plate (204) located outside the inner air box shell (203). A rectangular filter plate (205) is provided at the inlet of the secondary air duct. A motor (301) is provided at the bottom of the outer air box shell (201). A rotating shaft (302) is provided at the bottom of the outer air box shell (201) and the inner air box shell (203). The end of the rotating shaft (302) extending to the bottom of the outer air box shell (201) is connected to the main shaft of the motor (301). A bevel gear (303) is provided at the end of the rotating shaft (302) inside the inner air box shell (203). A rotating shaft (305) is provided inside the inner air box shell (203) through a mounting base (304). A bevel gear (307) is provided on the rotating shaft (305) to mesh with the bevel gear (303). A fan blade (306) is provided on the rotating shaft (305). The fan blade (306) is located outside the outlet of the inner air box shell (203) and at the outlet of the outer air box shell (201).

3. A heat-dissipating switch cabinet according to claim 2, characterized in that: The dust scraping assembly includes a vertical frame (501) and a mounting shaft (503). The vertical frame (501) is located on the top inner wall of the inlet of the inner air box shell (203). The mounting shaft (503) is rotatably mounted at the end of the vertical frame (501) and located at the center of the metal filter plate (204). Two scrapers (504) are provided on the mounting shaft (503), one of which is attached to the inner side of the metal filter plate (204) and the other is attached to the outer side of the metal filter plate (204).

4. A heat-dissipating switch cabinet according to claim 2, characterized in that: The sealing assembly includes two door hinges (404), which are vertically rotatable between the upper and lower side walls at the outlet of the inner air box shell (203). Each of the two door hinges (404) is provided with a sealing door (406), which is located inside the outlet of the inner air box shell (203). The rectangular sealing frame plate (207) is hinged at the entrance of the outer air box shell (201) and can be flipped to cover the outer side wall of the rectangular filter plate (205).

5. A heat-dissipating switch cabinet according to claim 4, characterized in that: The drive assembly includes a servo motor (401) and a rotating shaft three (402). The servo motor (401) is located on the top of the outer wind box shell (201). The rotating shaft three (402) is vertically rotatably located inside the top of the outer wind box shell (201) and the inner wind box shell (203) and between two door hinges (404). The main shaft of the servo motor (401) is connected to the top of the rotating shaft three (402). A synchronous pulley one (403) is provided on the rotating shaft three (402) and on the top of the two door hinges (404). The three synchronous pulleys one (403) are connected together by a synchronous belt one (405). A synchronous pulley five (1201) is provided on the rotating shaft three (402). A synchronous pulley six (1202) is provided on the hinge shaft of the rectangular sealing plate (207). The synchronous pulley five (1201) is connected to the synchronous pulley six (1202) through the synchronous belt three (1203).

6. A heat-dissipating switch cabinet according to claim 5, characterized in that: The linkage control component includes a horizontal frame (502), a sleeve (606), and a mounting groove (607). The horizontal frame (502) is mounted on the side wall of the vertical frame (501). An assembly shaft (602) is rotatably mounted on the horizontal frame (502). A cam (605) is mounted at the bottom of the assembly shaft (602), and a synchronous pulley four (603) is mounted at the top. A synchronous pulley three (601) is mounted at the bottom of the rotating shaft three (402). The synchronous pulley three (601) is connected to the synchronous pulley four (603) through a synchronous belt two (604). The sleeve (606) is slidably sleeved on the shaft of the second rotating shaft (305) near the inlet of the inner air box shell (203). Two fixing blocks (612) are arranged opposite each other on the shaft end of the second rotating shaft (305) near the inlet of the inner air box shell (203). A stabilizing column (613) is provided on the side of the two fixing blocks (612) facing the sleeve (606). The sleeve (606) is slidably sleeved on the stabilizing column (613). A return spring (614) is sleeved on the stabilizing column (613) located between the fixing block (612) and the opposite side of the sleeve (606). Two mounting slots (607) are provided and are positioned opposite each other on the shaft end of the second rotating shaft (305) near the inlet of the inner air box shell (203). Both mounting slots (607) are hinged with arc-shaped sleeves (608). Both arc-shaped sleeves (608) are provided with rubber anti-slip teeth (615) on their arc-shaped walls. The mounting shaft (503) is provided with rubber anti-slip teeth (616) on its end peripheral wall inside the inner air box shell (203). Both mounting slots (607) are provided with mounting cylinders (609) at the bottom. Both mounting cylinders (609) are provided with a stop post (610) and a stop spring (611). The stop spring (611) is located between the bottom of the mounting cylinder (609) and the end of the stop post (610).

7. A heat-dissipating switch cabinet according to claim 6, characterized in that: The box tube (801) is located between the assembly hole one (104) and assembly hole two (105) on the right side of the cabinet (101) and the corresponding outer air box shell (201) outlet side wall. A partition (802) is provided inside the box tube (801). The air intake component includes a cold air cavity (803) and an air spray nozzle (901). The cold air cavity (803) is located between the inner wall of the box tube (801) near the middle of the cabinet (101) and the side wall of the partition (802) near the middle of the cabinet (101). Multiple air spray nozzles (901) are arranged in an array on the side wall of the box tube (801) near the middle of the cabinet (101), and each air spray nozzle (901) is connected to the cold air cavity (803).

8. A heat-dissipating switch cabinet according to claim 7, characterized in that: The heat dissipation component includes a heat dissipation cavity (804) and a heat insulation sleeve (1001). The heat dissipation cavity (804) is located between the inner wall of the tube (801) away from the middle of the cabinet (101) and the side wall of the partition (802) away from the middle of the cabinet (101). A grid plate (805) is provided at the right cavity opening of the heat dissipation cavity (804). Multiple heat insulation sleeves (1001) are provided and are arranged in a horizontal array in the cold air cavity (803). Each heat insulation sleeve (1001) is fitted with a heat-conducting rod (1002). One end of each heat-conducting rod (1002) extends to the outside of the side wall of the tube (801) near the middle of the cabinet (101), and the other end extends into the heat dissipation cavity (804) and is provided with multiple heat dissipation fins (1003).

9. A heat-dissipating switch cabinet according to claim 7, characterized in that: The exhaust component includes an exhaust duct (1101), which is installed in the heat dissipation cavity (804) via a support rod (1102). The end of the exhaust duct (1101) near the outer air box shell (201) is closed. One end of the rotating shaft (305) extends into the exhaust duct (1101) and is equipped with a fan blade (1103). Two heat dissipation main pipes (1104) are arranged opposite each other on the exhaust duct (1101). The ends of each of the heat dissipation main pipes (1104) extend to the outside of the side wall of the box pipe (801) near the middle of the cabinet (101) and are located on the left and right inner side walls of the cabinet (101). Multiple heat dissipation branch pipes (1105) are installed on each of the two heat dissipation main pipes (1104). Each heat dissipation branch pipe (1105) extends to the middle of the cabinet (101). Multiple openings (1106) are arranged in an array on each heat dissipation branch pipe (1105).

10. A heat-dissipating switch cabinet according to claim 7, characterized in that: The inner wall of the cold air cavity (803), the heat insulation sleeve (1001) located in the cold air cavity (803), and the outer peripheral wall of the heat exhaust pipe (1104) are all provided with heat insulation coatings; the synchronous pulley one (403), synchronous pulley three (601), synchronous pulley four (603), synchronous pulley five (1201), and synchronous pulley six (1202) are all of the same size; a controller (13) is provided on the outside of the cabinet (101).

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