Variable frequency cabinet with high protection independent air duct

Abstract

The utility model relates to frequency conversion cabinet technical field especially relates to a frequency conversion cabinet with high protection independent air duct, its technical scheme: including cabinet and independent pipeline, the independent pipeline is installed on the cabinet upper end, and the independent pipeline end part is installed with the fan, the independent pipeline bottom and with the corresponding position fixed with the butt joint pipe of cabinet, the cabinet upper end and with the corresponding position fixed with the telescopic pipe of independent pipeline, the cabinet upper end and located telescopic pipe peripheral fixed with the protection box, the protection box upper end is equipped with the center hole, the protection box upper end sliding connection has a pair of sealing plate. The utility model independent pipeline design can effectively isolate the heat of cabinet inside and external environment, ensure that the heat is discharged rapidly through special passage, can improve the heat dissipation efficiency obviously, avoid the equipment overheating because of the heat accumulation, thereby prolong the service life of frequency converter.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter cabinet technology, specifically a frequency converter cabinet with a high-protection independent air duct. Background Technology

[0002] A frequency converter cabinet is an electrical control cabinet equipped with a frequency converter. It is mainly used to control the operation of power devices through frequency conversion drive. It has good starting performance and regulation capability, and can effectively optimize the operating status of equipment and improve energy utilization efficiency.

[0003] During the operation of the frequency converter cabinet, its internal components generate heat, which accumulates inside the cabinet, causing the internal temperature to rise continuously. At this time, it is necessary to open heat dissipation slots to dissipate heat. However, opening the slot structure directly on the side wall will reduce the airtightness of the cabinet, causing the internal environment of the cabinet to be affected by the external environment. In humid or dusty environments, it will cause serious damage to the internal components. Utility Model Content

[0004] The purpose of this invention is to provide a frequency converter cabinet with a highly protected independent air duct to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a cabinet and an independent pipe. The independent pipe is installed on the upper part of the cabinet, and a fan is installed at the end of the independent pipe. A connecting pipe is fixed at the bottom of the independent pipe and at a position corresponding to the cabinet. A telescopic pipe is installed at the upper part of the cabinet and at a position corresponding to the independent pipe. A protective box is fixed at the upper part of the cabinet and around the telescopic pipe. A central hole is opened at the upper end of the protective box, and a pair of sealing plates are slidably connected to the upper end of the protective box.

[0006] Preferably, the telescopic tube consists of an outer tube and an inner tube. The outer tube is fixed to the upper end of the cabinet, the inner tube is slidably connected inside the outer tube, and a dustproof net is fixed to the inner side of the inner tube.

[0007] Preferably, an outer side plate is fixed to the outside of the inner tube, a telescopic cylinder is fixed between the outer side plate and the upper end of the cabinet, a sealing gasket is fixed to the upper end of the outer side plate, and the upper end of the inner tube extends out of the outer side plate and is inserted into the connecting pipe.

[0008] Preferably, a pair of guide rails are fixed to the upper end of the protective box, and the sealing plate is slidably connected to the guide rails.

[0009] Preferably, a drive groove is provided at the bottom center of the sealing plate, and a drive motor is fixed inside the protective box at a position corresponding to the drive groove. The output end of the drive motor is located inside the drive groove and a drive gear is fixed thereon. A linear rack that meshes with the drive gear is fixed inside the drive groove.

[0010] Preferably, a diversion pipe is installed on the independent pipe, and a tee pipe is fixed at both ends of the diversion pipe where it connects to the independent pipe. A tee valve is installed inside the tee pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the independent pipe design can effectively isolate the heat inside the cabinet from the external environment, ensuring that the heat is quickly discharged through a dedicated channel, which can significantly improve the heat dissipation efficiency, avoid overheating of the equipment due to heat accumulation, and thus extend the service life of the frequency converter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front structure of a frequency converter cabinet with a highly protected independent air duct according to the present invention. Figure 2 This utility model relates to a frequency converter cabinet with a high-protection independent air duct. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the telescopic tube structure of a frequency converter cabinet with a high-protection independent air duct according to the present invention; Figure 4 This is a top view schematic diagram of the cabinet structure of a frequency converter cabinet with a high-protection independent air duct according to the present invention.

[0013] In the diagram: 1. Cabinet; 2. Independent pipe; 21. Connecting pipe; 22. Diverter pipe; 23. T-pipe; 3. Telescopic pipe; 31. Outer pipe; 32. Inner pipe; 33. Dustproof net; 34. Outer panel; 35. Telescopic cylinder; 4. Protective box; 41. Center hole; 42. Guide rail; 43. Drive gear; 44. Drive motor; 5. Sealing plate; 51. Drive groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a technical solution: including a cabinet 1 and an independent pipe 2. The independent pipe 2 is installed on the upper end of the cabinet 1, and a fan is installed at the end of the independent pipe 2. A connecting pipe 21 is fixed at the bottom of the independent pipe 2 and at a position corresponding to the cabinet 1. A telescopic pipe 3 is installed at the upper end of the cabinet 1 and at a position corresponding to the independent pipe 2. A protective box 4 is fixed at the upper end of the cabinet 1 and around the telescopic pipe 3. A central hole 41 is opened at the upper end of the protective box 4. A pair of sealing plates 5 are slidably connected to the upper end of the protective box 4. A diversion pipe 22 is installed on the independent pipe 2. A three-way pipe 23 is fixed at the connection between the two ends of the diversion pipe 22 and the independent pipe 2. A three-way valve is installed inside the three-way pipe 23.

[0016] The telescopic tube 3 consists of an outer tube 31 and an inner tube 32. The outer tube 31 is fixed to the upper end of the cabinet 1, and the inner tube 32 is slidably connected inside the outer tube 31. A dustproof net 33 is fixed inside the inner tube 32, and an outer side plate 34 is fixed outside the inner tube 32. A telescopic cylinder 35 is fixed between the outer side plate 34 and the upper end of the cabinet 1. A sealing gasket is fixed at the upper end of the outer side plate 34. The upper end of the inner tube 32 extends out of the outer side plate 34 and is inserted into the connecting tube 21.

[0017] A pair of guide rails 42 are fixed at the upper end of the protective box 4. The sealing plate 5 is slidably connected to the guide rails 42. A drive groove 51 is opened at the middle of the bottom of the sealing plate 5. A drive motor 44 is fixed inside the protective box 4 at a position corresponding to the drive groove 51. The output end of the drive motor 44 is located in the drive groove 51 and a drive gear 43 is fixed thereon. A linear rack that meshes with the drive gear 43 is fixed inside the drive groove 51.

[0018] Working principle: First, connect the entire device to an external power source. Then, connect the telescopic tube 3 and the connecting pipe 21. Drive the fan in the independent pipe 2 to generate a large airflow in the independent pipe 2. Under the action of pressure difference, the air in the cabinet 1 will continuously enter the independent pipe 2, thereby removing the heat accumulated in the cabinet 1. When the cabinet 1 is moved away, the gas can be circulated through the diversion pipe 22 by the control of the three-way valve, so as not to cause airflow overflow. During the docking and disconnection process, the inner tube 32 can be driven to rise and fall by the telescopic cylinder 35. After the telescopic tube 3 is stored, the upper end of the center hole 41 can be closed by the sliding of the sealing plate 5, which can prevent dust from falling onto the dustproof net 33 and accumulating during transportation. During this process, the drive motor 44 can drive the drive gear 43 to rotate by the drive motor output end. Through the transmission of the linear rack, the sliding drive of the sealing plate 5 can be realized.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frequency converter cabinet with a high-protection independent air duct, comprising a cabinet (1) and an independent duct (2), characterized in that: The independent pipe (2) is installed on the upper end of the cabinet (1), and a fan is installed at the end of the independent pipe (2). A connecting pipe (21) is fixed at the bottom of the independent pipe (2) and at the position corresponding to the cabinet (1). A telescopic pipe (3) is installed at the upper end of the cabinet (1) and at the position corresponding to the independent pipe (2). A protective box (4) is fixed at the upper end of the cabinet (1) and around the telescopic pipe (3). A central hole (41) is opened at the upper end of the protective box (4). A pair of sealing plates (5) are slidably connected to the upper end of the protective box (4).

2. The frequency converter cabinet with a high-protection independent air duct according to claim 1, characterized in that: The telescopic tube (3) consists of an outer tube (31) and an inner tube (32). The outer tube (31) is fixed to the upper end of the cabinet (1), and the inner tube (32) is slidably connected inside the outer tube (31). A dustproof net (33) is fixed inside the inner tube (32).

3. A frequency converter cabinet with a high-protection independent air duct according to claim 2, characterized in that: An outer side plate (34) is fixed to the outside of the inner tube (32). A telescopic cylinder (35) is fixed between the outer side plate (34) and the upper end of the cabinet (1). A sealing gasket is fixed to the upper end of the outer side plate (34). The upper end of the inner tube (32) extends out of the outer side plate (34) and is inserted into the connecting pipe (21).

4. The frequency converter cabinet with a high-protection independent air duct according to claim 1, characterized in that: The upper end of the protective box (4) is fixed with a pair of guide rails (42), and the sealing plate (5) is slidably connected to the guide rails (42).

5. A frequency converter cabinet with a high-protection independent air duct according to claim 4, characterized in that: The sealing plate (5) has a drive groove (51) at the bottom center. The protective box (4) has a drive motor (44) fixed in the corresponding position to the drive groove (51). The output end of the drive motor (44) is located in the drive groove (51) and a drive gear (43) is fixed thereon. A linear rack that meshes with the drive gear (43) is fixed in the drive groove (51).

6. A frequency converter cabinet with a high-protection independent air duct according to claim 1, characterized in that: A diversion pipe (22) is installed on the independent pipe (2). A three-way pipe (23) is fixed at both ends of the diversion pipe (22) where it connects to the independent pipe (2). A three-way valve is installed inside the three-way pipe (23).

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