A ventilation and heat dissipation device and method for high and low voltage distribution cabinet

Abstract

The present invention discloses a ventilation and heat dissipation device for a high and low voltage power distribution cabinet, comprising: a main unit, which comprises: a cabinet, a fan chamber arranged on the bottom side of the cabinet, a top plate fixedly arranged on the upper side of the cabinet, and a cabinet door arranged on the front side of the cabinet, a blower is arranged in the fan chamber, and an air outlet is arranged on the back side of the cabinet; an adjustment unit, which comprises: a mounting plate fixedly arranged on the inner wall of the cabinet, and a driving device installed on the mounting plate; an air outlet unit, which comprises: an air uniformity seat, a connecting sleeve connected to both sides of the air uniformity seat, an elastic telescopic tube connected to the connecting sleeves on both sides, and an air uniformity roller arranged in the air uniformity seat. The present invention arranges an air uniformity seat on one side of the cabinet, and drives the air uniformity seat and related components to move up and down by a servo motor, thereby achieving air outlet within the range of the cabinet, greatly improving the overall heat dissipation effect in the cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a ventilation and heat dissipation device for high and low voltage power distribution cabinets and a method thereof. Background Art

[0002] High-voltage distribution cabinets, also known as high-voltage switch cabinets, are used for on-off, control or protection in power generation, transmission, distribution, power conversion and consumption of power systems. They mainly include high-voltage circuit breakers, high-voltage disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switch cabinets. The high-voltage switch manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry, and occupies a very important position in the entire power industry.

[0003] However, some high-voltage distribution cabinets have poor heat dissipation conditions and need to rely on external fans for auxiliary heat dissipation. Due to the internal space problem of the distribution cabinet, it is impossible to arrange the cooling fan on a large area. If the fan is set up in a fixed manner, the airflow on the side away from the fan is difficult to output, thus failing to meet the heat dissipation needs of different positions in the entire cabinet. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the prior art, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A ventilation and heat dissipation device for a high and low voltage power distribution cabinet, comprising:

[0008] The main unit comprises: a cabinet, a fan chamber arranged at the bottom side of the cabinet, a top plate fixedly arranged at the upper side of the cabinet, and a cabinet door arranged at the front side of the cabinet, a blower is arranged in the fan chamber, and an air outlet is arranged at the back side of the cabinet;

[0009] The adjusting unit comprises: a mounting plate fixedly arranged on the inner wall of the cabinet, and a driving device installed on the mounting plate;

[0010] The air outlet unit comprises: an air uniforming seat, a connecting sleeve connected to both sides of the air uniforming seat, an elastic telescopic tube connected to the connecting sleeves on both sides, and an air uniforming roller arranged in the air uniforming seat.

[0011] As a preferred solution of the ventilation and heat dissipation device of a high and low voltage distribution cabinet described in the present invention, the driving device includes: a servo motor fixedly mounted on the bottom side of a mounting plate, a screw rod installed on the output end of the servo motor, and a screw rod slider is fixedly connected to one side of the connecting sleeve, and the screw rod slider cooperates with the screw rod.

[0012] As a preferred solution of the ventilation and heat dissipation device of a high and low voltage distribution cabinet described in the present invention, wherein: the uniform air roller is rotatably set on the uniform air seat through a connecting shaft, the connecting shaft passes through one end of the uniform air seat and is fixedly connected with a gear, the inner side of the cabinet body is fixedly connected with a vertical bracket, and a plurality of tooth blocks are distributed in a vertical array on the vertical bracket, and the tooth blocks are meshed with the gears.

[0013] As a preferred solution of the ventilation and heat dissipation device for a high and low voltage distribution cabinet described in the present invention, the number of the tooth blocks is , and the gear rotates 15 degrees each time it engages with the tooth block.

[0014] As a preferred solution of the ventilation and heat dissipation device of a high and low voltage distribution cabinet described in the present invention, wherein: a limit block is fixedly connected to the connecting sleeve, a limit pin is slidably inserted into the limit block, an end is fixedly connected to the limit pin, and a spring is also sleeved on the limit pin, one end of the spring is fixedly connected to the end, and the other end of the spring is fixedly connected to the limit block, and the bottom end of the limit pin is hemispherical.

[0015] As a preferred solution of the ventilation and heat dissipation device of a high and low voltage distribution cabinet described in the present invention, wherein: air supply ports connected to the connecting sleeve are arranged on both sides of the air uniform seat, and an air supply slit is formed between the front of the air uniform seat and the air uniform roller.

[0016] As a preferred solution of the ventilation and heat dissipation device for a high and low voltage distribution cabinet described in the present invention, the wind uniformity roller includes: a main roller fixedly connected to the connecting shaft, and crescent-shaped protrusions arranged on both sides of the main roller.

[0017] As a preferred solution of the ventilation and heat dissipation device of a high and low voltage distribution cabinet described in the present invention, a plurality of waist-shaped air inlets are arranged on the front of the fan chamber, and dustproof nets are arranged at the plurality of waist-shaped air inlets.

[0018] The heat dissipation method of the ventilation and heat dissipation device of the high and low voltage distribution cabinet as described above comprises the following steps:

[0019] Step 1: Start the blower in the blower room to let the air flow in from the outside, and then send it into the air uniformity seat through the elastic expansion tube and the connection sleeve, and finally blow out the heat dissipation air flow from the air outlet slit of the air uniformity seat:

[0020] Step 2: The servo motors on both sides drive the screw rods to rotate, so that the air-distributing roller moves up and down along the longitudinal height of the cabinet, and then the air-distributing seat blows air within a certain height range to increase the cooling range of the air-distributing roller.

[0021] Step 3: Each time the wind-uniform roller moves, it drives the gear to come into contact with the tooth block. Each time the gear rotates 15 degrees in meshing contact, the crescent-shaped protrusion begins to rotate, causing the gap of the slit to become smaller, thereby increasing the air flow rate, meeting the heat dissipation conditions at different heights, and improving the heat dissipation efficiency.

[0022] Beneficial effects of the present invention:

[0023] By setting an air uniformity seat on one side of the cabinet, and using a servo motor to drive the air uniformity seat and its related components to move up and down, air can be discharged within the cabinet, greatly improving the overall heat dissipation effect in the cabinet;

[0024] By setting up the wind uniforming roller, when the wind uniforming seat moves, the wind uniforming roller can be adjusted according to the upper and lower movable range. The higher the height, the narrower the air outlet gap will be during the rotation of the crescent-shaped protrusion, thereby increasing the wind speed, ensuring the airflow flow rate, and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of a ventilation and heat dissipation device for a high and low voltage power distribution cabinet proposed by the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of a ventilation and heat dissipation device for a high and low voltage power distribution cabinet proposed by the present invention;

[0028] Figure 3 A schematic diagram of the structure of an adjustment unit of a ventilation and heat dissipation device for a high and low voltage power distribution cabinet proposed by the present invention;

[0029] Figure 4 A schematic diagram of the structure of an air supply unit of a ventilation and heat dissipation device for a high and low voltage power distribution cabinet proposed by the present invention;

[0030] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 6 Schematic diagram of the wind change on the side of the wind uniformity seat.

[0032] In the figure: 100-main unit, 101-cabinet, 102-fan room, 103-top plate, 104-cabinet door, 200-adjustment unit, 201-mounting plate, 202-servo motor, 203-screw, 204-vertical bracket, 205-tooth block, 300-air outlet unit, 301-uniform air seat, 301a-air outlet, 302-uniform air roller, 302a-main roller, 302b-crescent-shaped protrusion, 303-elastic telescopic tube, 304-connecting sleeve, 305-screw slider, 306-connecting shaft, 307-gear, 308-limit block, 309-limit pin, 310-spring. Implementation

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Reference Figure 1-Figure 6 , which is an embodiment of the present invention, provides a ventilation and heat dissipation device and method for a high and low voltage distribution cabinet, the device comprising: a main unit 100, an adjustment unit 200 and an air outlet unit 300.

[0038] Among them, the main unit 100 includes: a cabinet 101, a fan room 102 arranged on the bottom side of the cabinet 101, a top plate 103 fixedly arranged on the upper side of the cabinet 101, and a cabinet door 104 arranged on the front side of the cabinet 101. An air supply fan is arranged in the fan room 102, and an air outlet is arranged on the back side of the cabinet 101.

[0039] The adjustment unit 200 includes: a mounting plate 201 fixedly mounted on the inner wall of the cabinet 101, and a driving device installed on the mounting plate 201. Specifically, the driving device includes: a servo motor 202 fixedly mounted on the bottom side of the mounting plate 201, and a screw rod 203 installed on the output end of the servo motor 202.

[0040] The air outlet unit 300 includes: an air uniforming seat 301, a connecting sleeve 304 connected to both sides of the air uniforming seat 301, an elastic telescopic tube 303 connected to the connecting sleeves 304 on both sides, and an air uniforming roller 302 arranged in the air uniforming seat 301. A screw slider 305 is fixedly connected to one side of the connecting sleeve 304. The screw slider 305 cooperates with the screw 203. The servo motors 202 on both sides work synchronously to drive the screw slider 305 to move up and down, thereby realizing a wide range of air outlet. When there is no need to blow air to dissipate heat, the air uniforming seat 301 moves to the lowest side to facilitate the normal maintenance work of the staff.

[0041] The wind uniforming roller 302 is rotatably set on the wind uniforming seat 301 through the connecting shaft 306. The connecting shaft 306 passes through one end of the wind uniforming seat 301 and is fixedly connected to a gear 307. The inner side of the cabinet 101 is fixedly connected to a vertical bracket 204. The vertical bracket 204 has a plurality of tooth blocks 205 distributed in a vertical array. The tooth blocks 205 are meshed with the gears 307.

[0042] In addition, the number of tooth blocks 205 is 6, and the gear 307 rotates 15 degrees each time it engages with the tooth block 205, and can rotate 90 degrees during the movement from bottom to top, so as to adjust the size of the air outlet slit by adjusting the specific rotation angle of the wind uniform roller 302. The connecting sleeve 304 is fixedly connected to a limit block 308, and a limit pin 309 is slidably inserted on the limit block 308. The limit pin 309 is fixedly connected to an end, and a spring 309 is also sleeved on the limit pin 309. 10. One end of the spring 310 is fixedly connected to the end head, and the other end of the spring 310 is fixedly connected to the limit block 308. The bottom end of the limit pin 309 is hemispherical. Under the elastic force of the spring 310, when the wind-distributing roller 302 rotates a certain angle each time, the limit pin 309 will clamp the gear 307 to prevent it from rotating. Since the limit end of the limit pin 309 is hemispherical, the gear 307 will be squeezed to move upward when it is meshing and transmission, which will not affect the normal rotation of the gear 307.

[0043] Further, both sides of the air uniform seat 301 are provided with air supply ports 301a connected to the connecting sleeve 304, and an air supply slit is formed between the front of the air uniform seat 301 and the air uniform roller 302. The air uniform roller 302 includes: a main roller 302a fixedly connected to the connecting shaft 306, and crescent-shaped protrusions 302b arranged on both sides of the main roller 302a. Due to the elevation of the air uniform seat 301, the flow velocity and flow velocity impact effect of the air flow will be lost. In order to ensure that the air flow can accurately blow to the surface of the electrical components, refer to Figure 6 When the crescent-shaped protrusion 302b rotates, the size of the slit can be adjusted. The smaller the slit, the faster the wind speed, and the faster the airflow takes away the heat. A plurality of waist-shaped air inlets are arranged on the front of the fan chamber 102, and dustproof nets are arranged at the plurality of waist-shaped air inlets. After the air volume is brought in from the outside by the air supply fan, it is evenly blown into the cabinet 101 and then discharged from the air outlet.

[0044] As mentioned above, a heat dissipation method for a ventilation and heat dissipation device of a high and low voltage distribution cabinet comprises the following steps: first, the air supply fan in the fan chamber 102 is started to allow air to enter from the outside, and then the air is sent into the uniform air seat 301 through the elastic telescopic tube 303 under the connection with the connecting sleeve 304, and finally the heat dissipation airflow is blown out from the air outlet slit of the uniform air seat 301; then, the screw rod 203 is driven to rotate by the servo motors 202 on both sides, so that the uniform air roller 302 moves up and down along the longitudinal height of the cabinet body, and then the uniform air seat 301 blows air within a certain height range to increase the blowing and heat dissipation range; finally, each time the uniform air roller 302 moves, the gear 307 is driven to contact the tooth block 205, and when the gear 307 rotates 15 degrees each time it contacts and meshes, the crescent-shaped protrusion 302b starts to rotate, so that the gap of the slit becomes smaller, thereby increasing the blowing flow rate, meeting the heat dissipation conditions at different height positions, and improving the heat dissipation efficiency.

[0045] Among them, by setting an air uniforming seat 301 on one side of the cabinet, and driving the air uniforming seat 301 and its related components to move up and down through the servo motor 202, air can be discharged within the range of the cabinet, which greatly improves the overall heat dissipation effect in the cabinet. By setting the air uniforming roller 302, when the air uniforming seat 301 moves, the air uniforming roller 302 can be adjusted according to the up and down activity range. The higher the height, the crescent-shaped protrusion 302b makes the air outlet gap narrower during the rotation process, thereby increasing the wind speed, ensuring the air flow rate, and improving the heat dissipation effect.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A ventilation and heat dissipation device for a high and low voltage distribution cabinet, characterized in that: include: A main unit (100) comprising: a cabinet (101), a fan chamber (102) arranged at the bottom side of the cabinet (101), a top plate (103) fixedly arranged at the upper side of the cabinet (101), and a cabinet door (104) arranged at the front side of the cabinet (101), wherein an air blower is arranged in the fan chamber (102), and an air outlet is arranged at the back side of the cabinet (101); An adjustment unit (200) comprising: a mounting plate (201) fixedly arranged on the inner wall of the cabinet (101), and a driving device mounted on the mounting plate (201); An air outlet unit (300) comprising: an air uniforming seat (301), a connecting sleeve (304) disposed on both sides of the air uniforming seat (301), an elastic telescopic tube (303) connected to the connecting sleeves (304) on both sides, and an air uniforming roller (302) disposed in the air uniforming seat (301); The driving device comprises: a servo motor (202) fixedly mounted on the bottom side of the mounting plate (201), a screw rod (203) mounted on the output end of the servo motor (202), a screw rod slider (305) fixedly connected to one side of the connecting sleeve (304), and the screw rod slider (305) cooperates with the screw rod (203); The air uniforming roller (302) is rotatably arranged on the air uniforming seat (301) via a connecting shaft (306); one end of the connecting shaft (306) passing through the air uniforming seat (301) is fixedly connected to a gear (307); a vertical bracket (204) is fixedly connected to the inner side of the cabinet (101); a plurality of tooth blocks (205) are vertically arrayed on the vertical bracket (204); the tooth blocks (205) are meshed with the gear (307); air supply ports (301a) connected to the connecting sleeve (304) are arranged on both sides of the air uniforming seat (301); an air supply slit is formed between the front side of the air uniforming seat (301) and the air uniforming roller (302); and the air uniforming roller (302) comprises: a main roller (302a) fixedly connected to the connecting shaft (306); and crescent-shaped protrusions (302b) arranged on both sides of the main roller (302a).

2. The ventilation and heat dissipation device for a high and low voltage distribution cabinet according to claim 1 is characterized in that: The number of tooth blocks (205) provided is 6, and the gear (307) rotates 15 degrees each time it engages with the tooth block (205).

3. The ventilation and heat dissipation device for a high and low voltage distribution cabinet according to claim 2 is characterized in that: The connection sleeve (304) is fixedly connected to a limit block (308), a limit pin (309) is slidably inserted into the limit block (308), an end is fixedly connected to the limit pin (309), and a spring (310) is sleeved on the limit pin (309), one end of the spring (310) is fixedly connected to the end, and the other end of the spring (310) is fixedly connected to the limit block (308), and the bottom end of the limit pin (309) is hemispherical.

4. The ventilation and heat dissipation device for a high and low voltage distribution cabinet according to claim 3 is characterized in that: The front of the fan chamber (102) is provided with a plurality of waist-shaped air inlets, and dustproof nets are provided at the plurality of waist-shaped air inlets.

5. The heat dissipation method of the ventilation and heat dissipation device of the high and low voltage distribution cabinet according to claim 4, the method comprising the following steps: Step 1: Start the blower in the blower chamber (102) to allow air to enter from the outside, then pass through the elastic telescopic tube (303), and be sent into the air uniformity seat (301) through the connection of the connecting sleeve (304), and finally blow out the heat dissipation airflow from the air outlet slit of the air uniformity seat (301); Step 2: The servo motors (202) on both sides drive the screw rod (203) to rotate, so that the air uniform roller (302) moves up and down along the longitudinal height of the cabinet, and then the air uniform seat (301) blows air within a certain height range to increase the air blowing and heat dissipation range; Step 3: Each time the air-distributing roller (302) moves, it drives the gear (307) to come into contact with the tooth block (205). When the gear (307) rotates 15 degrees each time it comes into contact and meshes, the crescent-shaped protrusion (302b) starts to rotate, causing the gap of the slit to become smaller, thereby increasing the air flow rate, meeting the heat dissipation conditions at different heights, and improving the heat dissipation efficiency.

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