Energy-saving and noise-reducing frequency conversion control cabinet

Abstract

The utility model relates to the field of control cabinets, in particular to an energy-saving noise-reduction type frequency conversion control cabinet. The frequency conversion control cabinet comprises a cabinet body having a front door and a rear door opposite to each other; the heat dissipation structure comprises heat dissipation holes formed in the bottom of the rear door, a radiator installed in the cabinet body and an exhaust fan installed at the top of the rear door; the hole sealing structure comprises a first sealing plate which is arranged at the heat dissipation hole in a lifting manner and a second sealing plate which is arranged at the exhaust fan in a sliding manner; one side of the first sealing plate is connected with an electric push rod, and a pressing piece for pressing the side, away from the electric push rod, of the first sealing plate is arranged on the cabinet body. The energy-saving noise-reduction type frequency conversion control cabinet is provided with the heat dissipation structure and the hole sealing structure, heat dissipation can be well carried out in the cabinet body, the heat dissipation holes and the exhaust fan are blocked when heat dissipation is not needed, and noise transmitted to the outside is reduced.

Description

Technical Field

[0001] This utility model relates to the field of control cabinets, specifically to an energy-saving and noise-reducing variable frequency control cabinet. Background Technology

[0002] Variable frequency control cabinets are mainly used to adjust the operating frequency of equipment, reduce energy consumption, and enable smooth equipment startup, thereby reducing the damage to the motor caused by the large current generated when the equipment is started directly.

[0003] Variable frequency drive (VFD) control cabinets, due to the numerous components inside, are prone to generating significant heat. If this heat is not dissipated promptly, it will not only affect the performance of electrical components but also shorten their lifespan. Existing VFD control cabinets often employ cooling methods such as louvers or ventilation holes. However, this method directly connects the inside and outside of the cabinet. Even when the internal temperature is low and cooling is not required, noise can still be transmitted to the outside through the ventilation holes, impacting the user experience and health of staff.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem in existing technologies where noise is still transmitted to the outside through heat dissipation holes even when heat dissipation is not required, affecting the user experience and health of staff, this utility model provides a noise-reducing and energy-saving variable frequency control cabinet. The variable frequency control cabinet includes: a cabinet body with opposing front and rear doors; a heat dissipation structure including heat dissipation holes installed at the bottom of the rear door, a radiator installed inside the cabinet body, and an exhaust fan installed at the top of the rear door; a sealing structure including a first sealing plate that can be raised and lowered at the heat dissipation holes, and a second sealing plate that can be slidably installed at the exhaust fan; an electric push rod is connected to one side of the first sealing plate, and a clamping member is arranged on the cabinet body to press the side of the first sealing plate away from the electric push rod.

[0006] This utility model discloses an energy-saving and noise-reducing variable frequency control cabinet, comprising a cabinet body, a heat dissipation structure, and a sealing structure. The cabinet body houses these structures. The heat dissipation structure includes heat dissipation holes, a radiator, and an exhaust fan. The heat dissipation holes allow outside air to enter the cabinet, the radiator connects to electrical components that generate significant heat, and the exhaust fan expels hot air from the cabinet. The heat dissipation holes, radiator, and exhaust fan form an air duct, effectively dissipating heat from the electrical components within the cabinet. The sealing structure includes a first sealing plate and a second sealing plate. The first sealing plate is positioned at the heat dissipation holes and connected to an electric push rod and a clamping component. The electric push rod slides the first sealing plate, sealing the heat dissipation holes and preventing noise transmission to the outside when heat dissipation is not required. The clamping component presses one side of the first sealing plate firmly against the cabinet body, enhancing the sealing performance between the first sealing plate and the cabinet body. The second sealing plate is positioned at the exhaust fan, sealing it and preventing noise transmission to the outside. With the above-mentioned design, the energy-saving and noise-reducing frequency converter control cabinet of this utility model has a heat dissipation structure and a sealing structure, which can effectively dissipate heat inside the cabinet and seal the heat dissipation holes and exhaust fan when heat dissipation is not needed, thereby reducing the noise transmitted to the outside.

[0007] Furthermore, multiple clamping members are arranged at intervals along the length direction of the first sealing plate, and a guide surface is provided on the clamping members.

[0008] Furthermore, an inclined surface matching the guide surface is provided on the first sealing plate.

[0009] Furthermore, a slide rail is provided on the rear door to limit the sliding direction of the first sealing plate, and the lower end of the slide rail extends to the heat dissipation hole.

[0010] Furthermore, a sealing ring is provided on the rear door, and the sealing ring is arranged around the heat dissipation hole.

[0011] Furthermore, an interlayer is formed within the first sealing plate, and the interlayer is filled with microporous aluminum foam.

[0012] Furthermore, the second sealing plate is connected to a telescopic push rod that drives its sliding.

[0013] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0014] (1) The heat dissipation structure includes heat dissipation holes, radiators and exhaust fans; heat dissipation holes allow outside air to enter the cabinet, radiators can be connected to electrical components that generate a lot of heat, and exhaust fans can exhaust hot air from the cabinet; the heat dissipation holes, radiators and exhaust fans form an air duct, which can effectively dissipate heat from the electrical components inside the cabinet.

[0015] (2) The sealing structure includes a first sealing plate and a second sealing plate. The first sealing plate is arranged at the heat dissipation hole and is connected to an electric push rod and a clamping component. The electric push rod can drive the first sealing plate to slide, thereby sealing the heat dissipation hole and preventing excessive noise from being transmitted to the outside through the heat dissipation hole when heat dissipation is not required. The clamping component can press one side of the first sealing plate onto the cabinet, enhancing the sealing performance between the first sealing plate and the cabinet. Attached Figure Description

[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of an embodiment of an energy-saving and noise-reducing frequency converter control cabinet according to the present invention;

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of an embodiment of the second sealing plate in an energy-saving and noise-reducing frequency converter control cabinet according to this utility model.

[0020] List of reference numerals in the attached diagram: 1. Cabinet body; 11. Front door; 12. Rear door; 2. Heat dissipation structure; 21. Heat dissipation hole; 22. Radiator; 23. Exhaust fan; 31. First sealing plate; 311. Inclined surface; 32. Second sealing plate; 33. Electric push rod; 34. Clamping component; 341. Guide surface; 342. Abutment surface; 35. Slide rail; 36. Telescopic push rod; 37. Guide rail; 4. Sealing ring. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] To improve or solve the technical problem in the prior art where noise is still transmitted to the outside through the heat dissipation hole 21 when heat dissipation is not required, affecting the user experience and health of the staff, this utility model provides a noise-saving and energy-saving variable frequency control cabinet. The variable frequency control cabinet includes: a cabinet body 1 with a front door 11 and a rear door 12; a heat dissipation structure 2, including a heat dissipation hole 21 installed at the bottom of the rear door 12, a radiator 22 installed in the cabinet body 1, and an exhaust fan 23 installed at the top of the rear door 12; a sealing structure, including a first sealing plate 31 that can be raised and lowered and arranged at the heat dissipation hole 21, and a second sealing plate 32 that can be slidably arranged at the exhaust fan 23; an electric push rod 33 is connected to one side of the first sealing plate 31, and a clamping member 34 is arranged on the cabinet body 1 to press the side of the first sealing plate 31 away from the electric push rod 33.

[0025] Figure 1 This is a schematic diagram of an embodiment of an energy-saving and noise-reducing frequency converter control cabinet according to this utility model. Figure 1 As shown, the present invention provides an energy-saving and noise-reducing frequency converter control cabinet, which includes a cabinet body 1, a heat dissipation structure 2, and a sealing structure.

[0026] See also Figure 1 The cabinet 1 includes a frame and side panels mounted on the frame. A front door 11 and a rear door 12 are arranged opposite each other on the frame. The front door 11 has components such as a pressure gauge and indicator lights. There are two rear doors 12, positioned vertically, designated as an upper rear door and a lower rear door.

[0027] Figure 2 yes Figure 1 An enlarged view of point A in the diagram. (See diagram below.) Figure 1 and Figure 2As shown, the heat dissipation structure 2 is installed on the rear door 12. In one or more embodiments, the heat dissipation structure 2 includes a heat dissipation hole 21 formed at the bottom of the lower rear door 12, a radiator 22 mounted on the frame, and an exhaust fan 23 mounted on the upper rear door 12. Specifically, the heat dissipation hole 21 is generally elongated and arranged in an array at the bottom of the lower rear door 12. Further, a rain curtain is provided on the outside of the lower rear door 12. One rain curtain is arranged correspondingly outside one heat dissipation hole 21. Further, a sealing ring 4 is provided on the rear door 12, and the sealing ring 4 is arranged around the heat dissipation hole 21. Specifically, the sealing ring 4 is arranged in a circle around the heat dissipation hole 21 area to abut against the sealing structure. Further, the radiator 22 is close to the exhaust fan 23. The side of the radiator 22 facing away from the rear door 12 is connected to electrical components and can dissipate heat from the electrical components. It is understood that the radiator 22 includes a mounting plate connected to the electrical components and multiple fins mounted on the mounting plate. A through-type heat dissipation groove is formed between the connected fins, allowing air entering from the heat dissipation hole 21 to pass through the heat dissipation groove from bottom to top. Furthermore, an air guide plate is provided between the radiator 22 and the rear door 12. The air guide plate is mounted on the rear door 12 and connected to the radiator 22 to prevent air from flowing upwards from areas outside the heat dissipation groove. For example, three radiators 22 are arranged side-by-side.

[0028] Figure 3 This is a schematic diagram of an embodiment of the second sealing plate in an energy-saving and noise-reducing frequency converter control cabinet according to this utility model. Figure 1 , Figure 2 and Figure 3 As shown, the sealing structure includes a first sealing plate 31 that can be raised and lowered and arranged at the heat dissipation hole 21, and a second sealing plate 32 that can be slidably arranged at the exhaust fan 23. The first sealing plate 31 is used to block the heat dissipation hole 21, and the second sealing plate 32 is used to block the exhaust fan 23. Specifically, the first sealing plate 31 is generally rectangular in shape, with a hinge shaft provided on the upper side of the first sealing plate 31, and an inclined surface 311 formed on the lower side of the first sealing plate 31. Two inclined surfaces 311 are arranged opposite each other and extend from both sides towards the middle. It can be understood that the first sealing plate 31 and the rear door 12 are arranged at intervals and are sealed by contact with the sealing ring 4. The inclined surface 311 can avoid the sealing ring 4 and guide the first sealing plate 31 when contacting the sealing ring 4.

[0029] See also Figure 1 , Figure 2 and Figure 3A slide rail 35 is provided on the rear door 12, and the slide rail 35 is arranged on both sides of the first sealing plate 31 to limit the sliding direction of the first sealing plate 31. The lower end of the slide rail 35 extends to the area of ​​the heat dissipation hole 21. Specifically, a sealing ring 4 can be provided on the slide rail 35, and the sealing ring 4 on the slide rail 35 and the sealing ring 4 on the rear door 12 are arranged opposite to each other on both sides of the first sealing plate 31. Further, an electric push rod 33 is connected to the upper side of the first sealing plate 31 and is installed on the rear door 12. A hinge hole matching the hinge shaft is opened at the push rod end of the electric push rod 33. Further, a clamping member 34 is provided on the cabinet 1, and the clamping member 34 is close to the rear door 12. Specifically, the clamping member 34 has a connecting part connected to the cabinet 1 and an abutting part that abuts against the first sealing plate 31. The abutting portion has a guide surface 341 that mates with the inclined surface 311, and an abutting surface 342 connected to the guide surface 341. The guide surface 341 can guide the first sealing plate 31, and the abutting surface 342 can abut against the side of the first sealing plate 31 facing the front door 11, thereby pressing the first sealing plate 31. Further, a plurality of pressing members 34 are spaced apart along the length direction of the first sealing plate 31. For example, three pressing members 34 are provided, and the three pressing members 34 are evenly and spaced apart. Further, a sandwich layer is provided in the first sealing plate 31, and the sandwich layer is filled with microporous aluminum foam. For example, the first sealing plate 31 includes a first metal plate, a second metal plate arranged opposite to the first metal plate, and a microporous aluminum foam plate arranged between the first metal plate and the second metal plate. A groove matching the microporous aluminum foam plate is formed in the first metal plate.

[0030] See Figure 1 and Figure 3 The second sealing plate 32 is slidably arranged at the exhaust fan 23. In one or more embodiments, a guide rail 37 is provided on the side of the upper rear door 12 opposite to the front door 11, and the guide rail 37 defines the sliding direction of the second sealing plate 32. Specifically, two guide rails 37 are provided, and the two guide rails 37 are provided on the left and right sides of the second sealing plate 32. A telescopic push rod 36 is also provided on the top of the second sealing plate 32. The connection structure between the second sealing plate 32 and the rear door 12 is the same as the connection structure between the first sealing plate 31 and the rear door 12, and will not be described again here.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An energy-saving and noise-reducing type frequency conversion control cabinet, characterized in that, The utility model relates to a cabinet with heat dissipation structure and sealing structure, including: Cabinet body (1) with opposite front door (11) and back door (12); Heat dissipation structure (2) including heat dissipation hole (21) installed in the bottom of back door (12), radiator (22) installed in cabinet body (1) and exhaust fan (23) installed in the top of back door (12); Sealing structure including first sealing plate (31) arranged in heat dissipation hole (21) and second sealing plate (32) arranged in exhaust fan (23) and can slide;The side of first sealing plate (31) is connected with electric push rod (33), and the pressing part (34) that presses the side of first sealing plate (31) away from electric push rod (33) is arranged on cabinet body (1).

2. The energy-saving and noise-reducing type frequency conversion control cabinet according to claim 1, characterized in that, The pressing part (34) is arranged in multiple along the length direction of first sealing plate (31), and the guide surface (341) is arranged on the pressing part (34).

3. The energy-saving and noise-reducing type frequency conversion control cabinet according to claim 2, characterized in that, The inclined surface (311) matched with guide surface (341) is arranged on first sealing plate (31).

4. The energy-saving and noise-reducing type frequency conversion control cabinet according to claim 1, characterized in that, The slide rail (35) that defines the sliding direction of first sealing plate (31) is arranged on back door (12), and the lower end of slide rail (35) extends to heat dissipation hole (21).

5. The energy-saving and noise-reducing type frequency conversion control cabinet according to claim 1, characterized in that, The sealing ring (4) is arranged on back door (12), and the sealing ring (4) is arranged around heat dissipation hole (21).

6. The energy-saving and noise-reducing type frequency conversion control cabinet according to claim 1, characterized in that, The interlayer is formed in first sealing plate (31), and the microporous aluminum foam is filled in the interlayer.

7. The energy-saving and noise-reducing frequency conversion control cabinet according to claim 1, characterized in that, The telescopic push rod (36) that drives second sealing plate (32) to slide is connected with second sealing plate (32).

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