CN222531930U

CN222531930U - Frequency conversion cabinet body and frequency conversion equipment

Info

Publication number: CN222531930U
Application number: CN202420140360.0U
Authority: CN
Inventors: 王勇
Original assignee: Changsha Yingweiteng Electric Technology Co ltd
Current assignee: Changsha Yingweiteng Electric Technology Co ltd
Priority date: 2024-01-19
Filing date: 2024-01-19
Publication date: 2025-02-25
Anticipated expiration: 2034-01-19

Abstract

The present application is applicable to the technical field of electric power equipment, and provides a frequency conversion cabinet and frequency conversion equipment, wherein the frequency conversion cabinet includes a cabinet, a partition structure and a cooling structure. The cabinet has an inner cavity. The partition structure is installed in the inner cavity, and the partition structure divides the inner cavity into a first chamber and a second chamber, the first chamber is used to install a frequency converter, and the second chamber is used to install a heating device. The cooling structure is installed in the first chamber. When a frequency converter is installed in the first chamber and a heating device is installed in the second chamber, the partition structure can block at least part of the heat generated by the heating device in the second chamber from entering the first chamber, so as to reduce the temperature of the first chamber to a certain extent, thereby improving the heat dissipation effect of the frequency converter. Since the frequency conversion cabinet is also provided with a cooling structure in the first chamber, the heat dissipation effect of the frequency converter can be further improved, thereby improving the stability of the operation of the frequency converter and increasing the service life of the frequency converter.

Description

Frequency conversion cabinet body and frequency conversion equipment

Technical Field

The application relates to the technical field of power equipment, in particular to a variable-frequency cabinet body and variable-frequency equipment.

Background

The frequency converter is a power control device for controlling an ac motor by changing the frequency of the operating power supply of the motor. The frequency converter is usually installed in a frequency conversion cabinet, and a plurality of power devices are usually installed in the frequency conversion cabinet in the surrounding area of the frequency converter. In the operation process of the frequency conversion cabinet, besides the heat generated by the frequency converter, a plurality of power devices can generate a large amount of heat, so that the temperature around the frequency converter is too high, the normal operation of the frequency converter is affected, the frequency converter is burnt out even, and the service life of the frequency converter is shortened.

Disclosure of utility model

The embodiment of the application aims to provide a frequency conversion cabinet body and frequency conversion equipment, and aims to solve the technical problems that the temperature around a frequency converter is too high and the service life of the frequency converter is shortened in the operation process of the frequency conversion cabinet in the prior art.

In order to achieve the purpose, the application adopts the technical scheme that the frequency conversion cabinet body comprises:

A cabinet having an interior cavity;

The separation structure is arranged in the inner cavity and divides the inner cavity into a first cavity and a second cavity, the first cavity is used for installing a frequency converter, and the second cavity is used for installing a heating device;

and a cooling structure mounted to the first chamber.

In one possible design, the frequency conversion cabinet body further comprises a box body, wherein the box body is provided with a containing cavity for containing the frequency converter, the box body is further provided with a first side wall, the cabinet is provided with a mounting opening, the mounting opening is communicated with the first cavity, one side of the box body, provided with the containing cavity, is located in the first cavity, the first side wall covers the mounting opening, the area of the first side wall is larger than that of the mounting opening, and the first side wall is detachably connected with the cabinet.

In one possible design, at least one side wall of the tank is provided with the cooling structure.

In one possible design, the side of the first side wall, which is away from the first cavity, is provided with a liquid inlet and a liquid outlet, and the cooling structure comprises a liquid cooling pipeline, and two ends of the liquid cooling pipeline are respectively communicated with the liquid inlet and the liquid outlet.

In one possible design, the second chamber surrounds at least a partial region outside the first chamber.

In one possible design, the separation structure includes a first partition and a second partition that are connected to each other, the first partition and the second partition are disposed at an included angle, and the first partition and the second partition are connected to the cabinet respectively.

In one possible design, the cabinet is provided with a first vent and a second vent, which communicate with the second chamber, respectively.

In one possible design, the cabinet is provided with an opening, at which a cabinet door is mounted, which opening communicates with the first and the second chamber, respectively.

In one possible design, the cabinet has a feed and a discharge, the discharge being disposed in the cabinet on a side opposite the opening.

The application also provides frequency conversion equipment, which comprises a frequency converter and the frequency conversion cabinet body provided by any one of the technical schemes, wherein the frequency converter is arranged in the first chamber of the frequency conversion cabinet body.

Compared with the prior art, the frequency conversion cabinet has the beneficial effects that the inner cavity of the cabinet is divided into the first cavity and the second cavity by arranging the separation structure. When the frequency converter is installed in the first chamber and the heating device is installed in the second chamber, the separation structure can prevent at least part of heat generated by the heating device in the second chamber from entering the first chamber, so that the temperature of the first chamber is reduced to a certain extent, and the heat dissipation effect of the frequency converter is improved. In addition, the first cavity is provided with the cooling structure, so that the heat dissipation effect of the frequency converter can be further improved, the running stability of the frequency converter is improved, and the service life of the frequency converter is prolonged.

Compared with the prior art, the frequency conversion equipment provided by the application has the beneficial effects that the frequency conversion equipment provided by the application at least has all the beneficial effects and is not repeated herein because the frequency conversion equipment provided by the application comprises the frequency conversion cabinet body provided by any one of the technical schemes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a perspective structure of a frequency conversion device according to an embodiment of the present application;

fig. 2 is a schematic diagram of a part of a frequency conversion device according to an embodiment of the present application;

FIG. 3 is a schematic view of another view angle structure of a frequency conversion device according to an embodiment of the present application;

Fig. 4 is a schematic structural view of a cabinet door in a frequency conversion device according to an embodiment of the present application in an open state;

fig. 5 is a schematic diagram of a portion of a frequency conversion device according to an embodiment of the present application.

Reference numerals related to the above figures are as follows:

100. The device comprises a cabinet, 110, an inner cavity, 111, a first chamber, 112, a second chamber, 120, a cabinet door, 130, an opening, 140, a first ventilation opening, 150, a second ventilation opening, 151, a first area, 152, a second area, 160, a wire inlet, 170, a wire outlet, 180 and a through hole;

200. a separation structure 210, a first separator 220, a second separator;

300. A case; 310, a first side wall, 311, a liquid inlet, 312, a liquid outlet;

410. Frequency converter 420, input unit 430, output unit 440, control unit 450, input end 460, output end.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the structures or elements being referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Finally, it is worth noting that in the various figures of the embodiments of the present application, the leads with solid arrows are directed to the structure itself, and the leads with dots are directed to a piece of cavity (e.g., cavity, port, hole or slot, etc.).

In order to explain the technical scheme of the application, the following is a detailed description with reference to the specific drawings and embodiments.

As shown in fig. 1 to 5, one embodiment of the present application provides a variable frequency cabinet including a cabinet 100, a partition structure 200, and a cooling structure. Cabinet 100 has an interior cavity 110. The separation structure 200 is installed in the inner cavity 110, the separation structure 200 divides the inner cavity 110 into a first chamber 111 and a second chamber 112, the first chamber 111 is used for installing the frequency converter 410, and the second chamber 112 is used for installing the heating device. The cooling structure is mounted to the first chamber 111.

Cabinet 100 is a cabinet structure having an interior cavity 110, and cabinet 100 may be cylindrical, prismatic, or other irregularly configured shape. In some embodiments, cabinet 100 may be a prismatic structure. Illustratively, as shown in fig. 1, cabinet 100 is a rectangular parallelepiped structure. The shape and size of the cabinet 100 may be set according to the actual shape and size of the installation space. For convenience of description, the cabinet 100 will be described as a rectangular parallelepiped structure.

The cooling structure may be a liquid cooling structure, an air cooling structure or other structures which can be used for cooling and radiating heat.

The partition structure 200 is mounted to the inner cavity 110, specifically, the partition structure 200 is located in the inner cavity 110, and the partition structure 200 is connected to the inner wall of the cabinet 100, so that the partition structure 200 partitions the inner cavity 110 into the first chamber 111 and the second chamber 112. The first chamber 111 and the second chamber 112 are two independent chambers. The partition structure 200 may specifically be a plate-like structure, and in some examples, the partition structure 200 may include a plurality of partitions, where two adjacent partitions are connected to each other, and the two adjacent partitions may be connected by a clamping, screwing, welding, or an integral molding manner. In embodiments of the present application, the integral molding manner includes, but is not limited to, stamping molding, extrusion molding, casting molding, and the like.

The second chamber 112 may mount a plurality of heat generating devices including, but not limited to, an input unit 420, an output unit 430, a control unit 440, and the like, as shown in fig. 2. The input unit 420, the output unit 430 and the control unit 440 are respectively connected to the frequency converter 410, and protection structures such as a fuse, a thermal relay and a current relay are generally disposed in the input unit 420 and the output unit 430 to protect the frequency converter 410. The frequency converter 410 is connected to the control unit 440, and the control unit 440 is configured to be in signal connection with a user terminal, so as to send related information of the frequency converter 410 to the user terminal.

Compared with the related art, as shown in fig. 2, the frequency conversion cabinet provided in the embodiment of the application is provided with the separation structure 200 to separate the inner cavity 110 of the cabinet 100 into the first cavity 111 and the second cavity 112. When the frequency conversion cabinet provided by the embodiment of the application is applied to frequency conversion equipment, the frequency converter 410 is installed in the first chamber 111, the heating device is installed in the second chamber 112, and the separation structure 200 can prevent at least part of heat generated by the heating device of the second chamber 112 from entering the first chamber 111, so that the temperature of the first chamber 111 is reduced to a certain extent, and the heat dissipation effect of the frequency converter 410 is improved. In addition, the frequency conversion cabinet provided by the embodiment of the application further has the cooling structure arranged in the first chamber 111, so that the heat dissipation effect of the frequency converter 410 can be further improved, the running stability of the frequency converter 410 is improved, and the service life of the frequency converter 410 is prolonged. In addition, due to the arrangement of the first chamber 111 and the second chamber 112, when the frequency conversion cabinet body is applied to the frequency conversion equipment, the frequency converter 410 and each heating device can be divided into different modules for installation, for example, the frequency converter 410 is arranged in the first chamber 111 as one module, and a plurality of heating devices are arranged in the second chamber 112 as one module.

In some alternative embodiments, the partition structure 200 may be provided with a via hole, through which the first chamber 111 and the second chamber 112 are communicated, so that the inverter 410 in the first chamber 111 is connected to the heat generating device in the second chamber 112. The size of the via hole may be set according to the size of the cable to be passed, and since the cable is generally of an elongated structure, that is, the outer diameter of the cable is relatively small, the size of the via hole is also small. Thus, even if the via holes are provided on the partition structure 200, the partition structure 200 can block most of the heat generated from the heat generating device from entering the first chamber 111. Optionally, a sealing structure may be disposed in the via hole, for example, a sealing ring is disposed in the via hole, and the cable may be disposed through an inner hole of the sealing ring and connected to the frequency converter 410 of the first chamber 111 and the heat generating device of the second chamber 112 respectively.

In one possible design, as shown in fig. 2-5, the variable frequency cabinet further comprises a housing 300, the housing 300 having a receiving cavity for receiving the frequency converter 410. The case 300 also has a first sidewall 310. The cabinet 100 is provided with a mounting opening, the mounting opening is communicated with the first chamber 111, one side of the cabinet 300 provided with the accommodating cavity is located in the first chamber 111, the first side wall 310 covers the mounting opening, the area of the first side wall 310 is larger than that of the mounting opening, and the first side wall 310 is detachably connected with the cabinet 100. It should be noted that the area of the first sidewall 310 refers to an area of a side surface of the first sidewall 310 facing the mounting opening. The area of the mounting opening refers to the area of the area surrounded by the side wall of the mounting opening, or in other words, the area of the mounting opening is specifically the area of the cross-sectional shape surrounded by the side wall of the mounting opening on the cross section perpendicular to the opening direction of the mounting opening. In some examples, the length of the first sidewall 310 is greater than the length of the mounting opening in either direction perpendicular to the opening direction of the mounting opening to ensure that the area of the first sidewall 310 is greater than the area of the mounting opening, thereby enabling the first sidewall 310 to completely flap the mounting opening.

The mounting port may be provided on any one of the side walls of the cabinet 100, and the side wall of the cabinet 100 provided with the mounting port will hereinafter be referred to as a second side wall. The first side wall 310 is specifically detachably connected to a side wall of the cabinet 100 provided with a mounting opening, that is, the first side wall 310 is detachably connected to the second side wall. Alternatively, the first side wall 310 and the second side wall may be detachably connected by a clamping or screwing manner.

Since the area of the first sidewall 310 is larger than the area of the mounting opening, at least a partial area of the projection of the first sidewall 310 coincides with the projection of the second sidewall on a projection plane perpendicular to the direction of the opening 130 of the mounting opening. The arrangement is such that the middle area of the first sidewall 310 is opposite to the mounting opening and covers the mounting opening, and the peripheral area of the first sidewall 310 located at the periphery of the middle area abuts against the outer side of the second sidewall, so that the first sidewall 310 and the second sidewall are detached outside the cabinet 100.

When the frequency conversion cabinet is applied to frequency conversion equipment, in the assembly process, the frequency converter 410 may be first installed in the accommodating cavity of the box 300, then the side of the box 300 provided with the accommodating cavity is extended into the first chamber 111 through the installation opening until the first side wall 310 abuts against the second side wall, and then the first side wall 310 and the second side wall are connected through screws, thereby implementing the installation of the frequency converter 410. Alternatively, the side wall of the case 300 may be provided with a wire through hole, and the receiving cavity and the first chamber 111 are communicated through the wire through hole on the side wall of the case 300, and the cable may enter the receiving cavity through the wire through hole on the side wall of the case 300 and be connected to the frequency converter 410.

According to the above-mentioned technical solution, the heat generated by the heat generating device in the second chamber 112 can be further blocked by the sidewall of the case 300. In addition, when the frequency converter 410 needs to be overhauled and maintained, the first side wall 310 is arranged, the whole cabinet 100 is not required to be disassembled, and the box 300 and the frequency converter 410 positioned in the accommodating cavity can be taken out only by separating the first side wall 310 from the second side wall from the outer side of the cabinet 100, so that the frequency converter 410 is integrally disassembled, and the frequency converter 410 is convenient to repair or replace. Therefore, the convenience of maintenance and repair of the inverter 410 can be improved. In one example, the peripheral region of the first sidewall 310 is coupled to the second sidewall by a screw such that the case 300 is detachably mounted to the first chamber 111.

In one possible design, at least one side wall of the case 300 is provided with the above-described cooling structure. Optionally, one of the side walls of the case 300 is provided with the cooling structure, and illustratively, the first side wall 310 is provided with the cooling structure, and since the first side wall 310 is located at the outer side of the second side wall, the cooling structure is disposed on the first side wall 310, so that the cooling structure is beneficial to timely transfer heat to the outside, thereby improving the heat dissipation effect of the frequency converter 410. Or the different side walls of the box 300 may be respectively provided with cooling structures, that is, the number of the cooling structures may be one or more, that is, the different side walls of the box 300 may be provided with cooling structures, and the cooling structures provided on the different side walls of the box 300 may be the same cooling structure or different cooling structures. In some examples, the cooling structure is mounted to each side wall of the case 300, and thus, the heat dissipation effect for the inverter 410 can be further improved.

In one possible design, the side of the first sidewall 310 facing away from the first chamber 111 is provided with a liquid inlet 311 and a liquid outlet 312. The cooling structure comprises a liquid cooling pipeline, as shown in fig. 3 or fig. 5, two ends of the liquid cooling pipeline are respectively communicated with the liquid inlet 311 and the liquid outlet 312.

The liquid inlet 311 is used for being connected with a liquid conveying structure, and the liquid conveying structure may be a structure of the frequency conversion cabinet body provided by the embodiment of the application, or may be an external structure, which is not limited herein. In some examples, the liquid delivery structure may be specifically a water pump or a faucet or the like. The liquid outlet 312 is used for being connected with a liquid recovery structure, and the liquid recovery structure may be a structure of the frequency conversion cabinet body provided by the embodiment of the application or an external structure. In some examples, the liquid recovery structure may be a tank or pool of water or the like. The liquid delivery structure is used for delivering cooling liquid into the liquid cooling pipeline through the liquid inlet port 311, the cooling liquid flows along the liquid cooling pipeline, part of heat in the box 300 is absorbed and taken away by the cooling liquid in the flowing process of the liquid cooling pipeline, and the cooling liquid finally flows into the liquid recovery structure through the liquid outlet port 312. The liquid recovery structure and the liquid conveying structure can be connected through the connecting pipeline, so that the liquid conveying structure can convey the cooling liquid in the liquid recovery structure to the liquid cooling pipeline again, recycling of the cooling liquid is realized, and resource saving is facilitated. Since the first side wall 310 is located at the outer side of the second side wall, the side of the first side wall 310 facing away from the first chamber 111 is provided with the liquid inlet 311 and the liquid outlet 312, that is, the liquid inlet 311 and the liquid outlet 312 are located at the outer side of the second side wall. So that the liquid inlet port 311 is connected to the liquid delivery structure, and the liquid outlet port 312 is also connected to the liquid recovery structure. And because feed liquor interface 311 and play liquid interface 312 all set up in first side wall 310 for when first side wall 310 of box 300 installs in the installing port, feed liquor interface 311 and play liquid interface 312 all are located the same side of rack 100, so set up, can make the position of liquid conveying structure and liquid recovery structure be close to relatively, can reduce the quantity of connecting tube between liquid output structure and the liquid recovery structure relatively, thereby reduce installation cost to a certain extent.

According to the above-described aspects, the liquid cooling pipe is provided to cool the inverter 410 mounted in the first chamber 111 in a liquid cooling manner. The cooling effect of the cooling liquid in the liquid cooling pipeline is not influenced by the outside humidity and the dust density, so that the noise can be reduced by adopting a liquid cooling heat dissipation mode, the heat dissipation effect is better, and the running stability of the frequency converter 410 is improved. In addition, the liquid cooling pipeline occupies a smaller space, which is beneficial to the volume of the box 300, thereby reducing the volume of the cabinet 100.

In one example, the liquid delivery structure is a water pump and the liquid recovery structure is a water tank with a coolant stored therein. The water tank is connected with a water pump, the water pump is used for conveying the cooling liquid in the water tank to the liquid inlet port 311, the cooling liquid enters the liquid cooling pipeline through the liquid inlet port 311, the cooling liquid flows along the liquid cooling pipeline, and finally flows back to the water tank through the liquid outlet port 312. In the embodiment of the application, the liquid inlet port 311 and the water pump can be connected through a water pipe, and the liquid outlet port 312 and the water tank can also be connected through a water pipe.

In some examples, the cooling structure may be a liquid cooled plate structure, that is, the cooling structure includes a plate body and a liquid cooled conduit mounted within the plate body. The plate body may be mounted on the first sidewall 310 or on other sidewalls of the case 300.

In other embodiments, the cooling structure includes only liquid-cooled conduits. The liquid-cooled conduit may be mounted directly on the first side wall 310 or directly on other side walls of the tank 300. Illustratively, the liquid-cooled conduit is mounted to the first sidewall 310. In some examples, the liquid cooling conduit is mounted on a side of the first sidewall 310 facing the accommodating cavity, that is, the liquid cooling conduit may be located in the accommodating cavity, so that the cooling liquid in the liquid cooling conduit absorbs heat in the accommodating cavity more fully, and further improves the heat dissipation effect. In other examples, the liquid cooling conduit is mounted inside the first sidewall 310, that is, the first sidewall 310 is a liquid cooling structure. So set up, both saved the shared space of liquid cooling pipeline, still can play better guard action to the liquid cooling pipeline, and then improve the life of liquid cooling pipeline, especially in the stronger environment of corrosivity, the life of liquid cooling pipeline is stronger relatively to effectively reduced to liquid cooling pipeline maintenance cost. Illustratively, the first sidewall 310 has a mounting cavity, the liquid-cooled conduit is located in the mounting cavity, and the liquid-cooled conduit is coupled to the first sidewall 310. In some alternative embodiments, the liquid-cooled conduit may be serpentine mounted within the mounting cavity.

In some alternative embodiments, as shown in fig. 5, the liquid inlet 311 is located below the liquid outlet 312, and the cooling liquid enters the liquid cooling pipe via the liquid inlet 311 and flows along the liquid cooling pipe to the upper liquid outlet 312, and finally flows out via the liquid outlet 312. In fig. 5, the direction indicated by the dotted arrow is the flow direction of the cooling liquid.

In some alternative examples, the first sidewall 310 may be a square plate-like structure, a circular plate-like structure, or a plate-like structure of other shapes. As shown in fig. 3, the first side wall 310 has a square plate structure, the liquid inlet 311 and the liquid outlet 312 are respectively located at two diagonal positions of the first side wall 310, and the liquid outlet is located above the liquid inlet.

In one possible design, the second chamber 112 is enclosed at least in part on the outside of the first chamber 111. That is, the second chamber 112 may surround the outer circumference of the first chamber 111, or the second chamber 112 may be located only at a partial region of the outer circumference of the first chamber 111. According to the above technical solution, the heat generating devices are advantageously distributed on the periphery of the frequency converter 410, so that the heat generating devices in the second chamber 112 are respectively connected with the frequency converter 410, and the compactness of the frequency converter 410 and the heat generating devices can be improved to a certain extent, which is advantageous for reducing the volume of the cabinet 100, thereby reducing the space occupation of the frequency conversion cabinet body.

In some examples, the second chamber 112 surrounds the outer periphery of the first chamber 111. Illustratively, the second chamber 112 may be a closed annular chamber, e.g., the second chamber 112 is a "back" shaped annular chamber. Or the second chamber 112 is provided around a partial region of the outer periphery of the first chamber 111. The second chamber 112 may be an annular chamber with a gap, for example, the second chamber 112 is a "C" or "L" shaped chamber.

In one possible design, as shown in fig. 2, the partition structure 200 includes a first partition 210 and a second partition 220 connected to each other, where the first partition 210 and the second partition 220 are disposed at an angle, and the first partition 210 and the second partition 220 are connected to the cabinet 100, respectively. The first separator 210 and the second separator 220 may be connected by welding, clamping, screwing, or integrally forming. According to the above technical solution, the plurality of heating devices may be divided into two groups, and one group of the plurality of heating devices is arranged along the length direction of the first partition 210 at intervals, and the other group of the plurality of heating devices is arranged along the length direction of the second partition 220 at intervals, so that the plurality of heating devices do not need to be arranged along the same direction at intervals, thereby avoiding the too long length of the cabinet 100 in a certain single direction, and reducing the space occupation of the cabinet 100 to a certain extent.

The first separator 210 and the second separator 220 may be disposed at various angles such as 80 degrees, 90 degrees, 97 degrees, or 121 degrees. In some examples, the first and second baffles 210, 220 are disposed at a 90 degree angle, and the second chamber 112 is specifically an "L" shaped chamber when the first and second baffles 210, 220 are disposed at a 90 degree angle. In some examples, as shown in fig. 2, the first partition 210 is disposed in a horizontal direction, the second partition 220 is disposed in a vertical direction, and the second partition 220 is connected to the right end of the first partition 210. The first and second partitions 210 and 220 are connected to the inner wall of the cabinet 100, respectively, to partition the inner cavity 110 of the cabinet 100 into the first and second chambers 111 and 112. In the orientation shown in fig. 2, the first chamber 111 is located above and to the left of the cabinet 100, specifically above the first partition 210 and to the left of the second partition 220, and a portion of the chambers of the second chamber 112 is located below the first partition 210 and another portion of the chambers is located to the right of the second partition 220.

In one possible design, as shown in fig. 2, cabinet 100 is provided with a first vent 140 and a second vent 150, with first vent 140 and second vent 150 respectively communicating with second chamber 112. According to the above technical solution, the first ventilation opening 140 and the second ventilation opening 150 are configured so that the second chamber 112 is communicated with the outside of the cabinet 100, after the heat generating device in the second chamber 112 generates heat, the air in the second chamber 112 is heated and warmed, so that the temperature of the air in the second chamber 112 and the temperature of the air outside the cabinet 100 form a temperature difference, thereby enabling the air in the second chamber 112 and the air outside the cabinet 100 to form convection, the external cold air can enter the second chamber 112 through the first ventilation opening 140 or the second ventilation opening 150, and the original hot air in the second chamber 112 is discharged through the second ventilation opening 150 or the first ventilation opening 140, which is beneficial to heat dissipation of the heat generating device in the second chamber 112, and further improving the heat dissipation effect of the frequency conversion cabinet. After that, the outside air enters the second chamber 112 through the first ventilation opening 140, and the air in the second chamber 112 is discharged to the outside through the second ventilation opening 150.

In some alternative embodiments, at least one of the first vent 140 and the second vent 150 may be provided with an air-supplying structure, which may be a fan or other structure that may drive the flow of air. In some embodiments, fans are provided at the first vent 140 and the second vent 150, respectively. Illustratively, the fan of the first ventilation opening 140 is used for blowing external cold air into the second chamber 112, and the fan of the second ventilation opening 150 is used for blowing hot air of the second chamber 112 into the outside of the cabinet 100, so, when the frequency conversion cabinet is applied to the frequency conversion equipment, the heat dissipation effect on the heat generating device is advantageously improved, so that the running stability of the frequency conversion equipment is improved, and the performance reliability of the whole frequency conversion equipment is higher.

In some embodiments, the first vent 140 is comprised of a plurality of small holes and the second vent 150 is also comprised of a plurality of small holes. Since the inner diameter of the small hole is small, it is possible to reduce dust or foreign matter from entering the second chamber 112 to some extent on the basis of making the second chamber 112 communicate with the outside.

In some examples, the top side wall of the first vent 140 is located at a lower elevation than the top side wall of the second vent 150. Since the air is heated to have a reduced density and floats upwards, the top side wall of the second air vent 150 is higher than the top side wall of the first air vent 140, which is beneficial to the discharge of the hot air from the second air vent 150 and the formation of air convection between the second chamber 112 and the outside. In a specific example, as shown in fig. 2, the second chamber 112 is an "L" chamber, the second chamber 112 includes a horizontal chamber and a vertical chamber, the horizontal chamber and the vertical chamber are disposed at an included angle, and the horizontal chamber and the vertical chamber are communicated with each other. In the orientation shown in fig. 2, the horizontal chamber is located on the underside of the first chamber 111 and the vertical chamber is to the right of the first chamber 111. The second vent 150 includes a first region 151 and a second region 152. The first vent 140 is located on the left side of the horizontal chamber, the first zone 151 is opposite the first vent 140 and is located on the right side of the horizontal chamber, the second zone 152 is located on the right side of the vertical chamber, and the second zone 152 is located above the first vent 140 and the first zone 151. By the arrangement, the maximum distance between the first ventilation opening 140 and the second ventilation opening 150 can be increased, so that the flow path of the airflow is increased, more sufficient heat dissipation is facilitated, and the heat dissipation effect is better. In addition, the hot air in the second chamber 112 is beneficial to flow out from the second zone 152 after floating upwards, so that the air pressure of the second chamber 112 is reduced, and then the external cold air is sucked into the second chamber 112 through the first ventilation openings 140 to form air flow, and the air flow flows from the first ventilation openings 140 to a direction close to the first zone 151 and the second zone 152, so that the hot air in the second chamber 112 can flow out from the second zone 152 and also can flow out from the first zone 151. As shown in fig. 2, the direction indicated by the dashed arrow in fig. 2 is the flow direction of the air flow in the second chamber 112. The arrangement of the first area 151 increases the air outlet area of the second air vent 150, which is beneficial to heat dissipation of the heat generating device.

In one possible design, as shown in fig. 4, the cabinet 100 is provided with an opening 130, where the cabinet door 120 is mounted at the opening 130, and the opening 130 communicates with the first chamber 111 and the second chamber 112, respectively. The cabinet door 120 is used to open or close the opening 130 of the cabinet 100. According to the above technical solution, by opening the cabinet door 120, the frequency converter 410 in the first chamber 111 and the heat generating device in the second chamber 112 can be overhauled and maintained, so that the maintenance operation is more convenient. In the embodiment of the present application, the opening 130 is specifically disposed at one side of the cabinet 100 in the horizontal direction. In some alternative embodiments, the cabinet door 120 is provided with a plurality of through holes 180, and each through hole 180 on the cabinet door 120 is respectively communicated with the outside and the second chamber 112, so that the heat dissipation effect on the heating device can be further improved.

In one possible design, as shown in fig. 3, cabinet 100 has a wire inlet 160 and a wire outlet 170, with wire outlet 170 being provided on the opposite side of cabinet 100 from opening 130. The wire inlet 160 is used for allowing external cables to enter the cabinet 100 to be connected with the frequency converter 410, the heating device and the like, and the wire outlet 170 is used for leading out the cables in the cabinet 100 to be connected with external equipment. According to the above technical solution, the outlet 170 is disposed on the opposite side of the opening 130, and since the opening 130 is disposed on the side of the cabinet 100 in the horizontal direction, the outlet 170 is disposed on the other side of the cabinet 100 in the horizontal direction, so that the operable space outside the outlet 170 is larger, thereby facilitating the connection between the frequency converter 410 and the external device.

In the embodiment of the present application, a side of the cabinet 100 where the opening 130 is provided is a front side, and a side of the cabinet 100 opposite to the opening 130 is a rear side. The outlet 170 is disposed at the rear side of the cabinet 100, the inlet 160 may be disposed at the rear side of the cabinet 100, or the inlet 160 may be disposed at the top of the cabinet 100, and the top operation space of the cabinet 100 is also large, which is advantageous for introducing external cables into the first and second chambers 111 and 112 of the cabinet 100 via the inlet 160. Alternatively, the mounting port may be disposed on the rear side of the cabinet 100, that is, the first side wall 310 of the case 300 and the liquid inlet 311 and the liquid outlet 312 on the first side wall 310 are both disposed on the rear side of the cabinet 100, so that the liquid inlet 311 is beneficial to be connected with the liquid conveying structure, and the liquid outlet 312 is beneficial to be connected with the liquid recycling structure.

In some embodiments, the variable frequency cabinet further comprises an input 450 and an output 460, wherein the input 450 is provided with the inlet 160 and the output 460 is provided with the outlet 170. The input end 450 is mounted on the top wall of the cabinet 100, the output end 460 is mounted on the second chamber 112, a through hole is formed in a sidewall of the rear side of the cabinet 100, and the outlet 170 on the output end 460 is exposed from the through hole, so that the output end 460 is connected with an external device. When the variable frequency cabinet is applied to variable frequency devices, some external devices are connected with the frequency converter 410 through the wire inlet 160 on the input end 450, and the frequency converter 410 is connected with other external devices through the wire outlet 170 on the output end 460.

Another embodiment of the present application provides a frequency conversion device, which includes a frequency converter 410 and the frequency conversion cabinet provided in any one of the foregoing embodiments, where the frequency converter 410 is installed in the first chamber 111 of the frequency conversion cabinet. Because the frequency conversion equipment provided by the embodiment of the application comprises the frequency conversion cabinet body provided by any one of the technical schemes, the frequency conversion equipment provided by the embodiment of the application has at least all the beneficial effects and is not repeated here.

In some alternative embodiments, the frequency conversion apparatus further includes a plurality of heat generating devices including an input unit 420, and a control unit 440, and the input unit 420, the output unit 430, and the control unit 440 are all mounted to the second chamber 112. The input unit 420 includes at least one circuit protection structure, and the output unit 430 also includes at least one circuit protection structure, which may be a fuse, a thermal relay, a current relay, or the like. The circuit protection structure of the input unit 420 is connected with the frequency converter 410 and the wire inlet 160 of the input end 450 respectively, and the circuit protection structure of the output unit 430 is connected with the frequency converter 410 and the wire outlet 170 of the output end 460 respectively, so that the frequency converter 410 is well protected. The frequency converter 410 is connected to the control unit 440, and the control unit 440 is configured to be in signal connection with a user terminal, so as to send related information of the frequency converter 410 to the user terminal, thereby facilitating a user to query or monitor an operation state of the frequency converter 410.

The above description is illustrative of the various embodiments of the application and is not intended to be limiting, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. A frequency conversion cabinet, characterized by comprising:

A cabinet having an inner cavity;

A partition structure is installed in the inner cavity, and the partition structure divides the inner cavity into a first chamber and a second chamber, wherein the first chamber is used to install a frequency converter, and the second chamber is used to install a heating device;

A cooling structure is installed in the first chamber.

2. The frequency conversion cabinet as described in claim 1 is characterized in that the frequency conversion cabinet also includes a box body, the box body has a accommodating cavity, and the accommodating cavity is used to accommodate the inverter; the box body also has a first side wall; the cabinet is provided with an installation port, and the installation port is connected to the first chamber, and the side of the box body provided with the accommodating cavity is located in the first chamber, the first side wall covers the installation port, the area of the first side wall is larger than the area of the installation port, and the first side wall is detachably connected to the cabinet.

3. The frequency conversion cabinet according to claim 2, characterized in that the cooling structure is provided on at least one side wall of the cabinet.

4. The frequency conversion cabinet as described in claim 3 is characterized in that a liquid inlet interface and a liquid outlet interface are provided on the side of the first side wall away from the first chamber; the cooling structure includes a liquid cooling pipe, and both ends of the liquid cooling pipe are respectively connected to the liquid inlet interface and the liquid outlet interface.

5. The frequency conversion cabinet according to claim 1, characterized in that the second chamber is arranged to surround at least a portion of the outer side of the first chamber.

6. The frequency conversion cabinet according to claim 5, characterized in that the partition structure comprises a first partition plate and a second partition plate connected to each other, the first partition plate and the second partition plate are arranged at an angle, and the first partition plate and the second partition plate are respectively connected to the cabinet.

7. The frequency conversion cabinet according to any one of claims 1 to 6, characterized in that the cabinet is provided with a first vent and a second vent, and the first vent and the second vent are respectively connected to the second chamber.

8. The frequency conversion cabinet according to any one of claims 1 to 6, characterized in that the cabinet is provided with an opening, a cabinet door is installed at the opening, and the opening is communicated with the first chamber and the second chamber respectively.

9. The frequency conversion cabinet according to claim 8, characterized in that the cabinet has a line inlet and a line outlet, and the line outlet is arranged on a side of the cabinet opposite to the opening.

10. A frequency conversion device, characterized in that it comprises a frequency converter and a frequency conversion cabinet according to any one of claims 1 to 9, wherein the frequency converter is installed in a first chamber of the frequency conversion cabinet.