Heat dissipation air duct of high-voltage frequency converter

Abstract

The utility model relates to the related technical field of frequency converters, and discloses a high-voltage frequency converter heat dissipation air duct, which comprises a heat dissipation air duct connected with a radiator of a frequency converter, the other end of the heat dissipation air duct extends out of a room, and one side, close to the frequency converter, of the heat dissipation air duct is provided with two quick openings. A movable insertion plate is arranged in one side of an outlet of the heat dissipation air duct; the interior of the heat dissipation air channel is supported through angle iron, and a one-way channel structure is formed. Compared with the prior art, the device has the advantages of being good in single-person effect, capable of saving power consumption, capable of being used in winter and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field related to frequency converters, and in particular to a heat dissipation duct for a high-voltage frequency converter. Background Art

[0002] The inverter is an electric energy control device that uses the on-off function of power semiconductor devices to convert the industrial frequency power supply into another frequency. It can be used to change the speed of AC high-voltage motors. The inverter will generate heat during operation. If it cannot be properly dissipated, it will cause overheating and damage.

[0003] At present, there are generally two ways to cool down the room of high-voltage inverters: air conditioning or axial flow fans. The above cooling methods have the following disadvantages:

[0004] 1. In summer, when the temperature is high, if the inverter power is relatively large, the indoor heat dissipation will be relatively large, and the cooling capacity of the air conditioner can only be equivalent to the heat dissipation of the inverter. If the heat dissipation is not dealt with from the root, effective cooling cannot be achieved by relying solely on the air conditioner. In addition, the air conditioner will malfunction if it is cooled at full load for a long time, and the power consumption will also be relatively large.

[0005] 2. Axial flow fans are similar to air conditioners in that they provide relatively low-temperature air from the outside to neutralize the high-temperature air in the room. However, the low-temperature air delivered to the room by the axial flow fan will carry some moisture, dust, etc., which may enter the inverter power unit during subsequent operation and cause production safety accidents. When the temperature is low in winter, the axial flow fan loses its function and other auxiliary heating equipment is needed for heating. Not only does it pose a hidden danger to electricity consumption, but it also consumes more electricity. Utility Model Content

[0006] 1. Technical Problems Solved

[0007] The technical problems to be solved by the utility model are poor heat dissipation effect, high power consumption and certain safety hazards in winter.

[0008] 2. Technical Solution

[0009] In order to solve the above technical problems, the technical solution provided by the utility model is: a high-voltage inverter heat dissipation duct, including a heat dissipation duct connected to the inverter's own heat sink,

[0010] The other end of the heat dissipation duct extends to the outside, the side of the heat dissipation duct close to the inverter is provided with two quick openings, and a movable plug plate is provided inside the outlet side of the heat dissipation duct;

[0011] The heat dissipation air duct is supported by angle irons to form a one-way channel structure.

[0012] As an improvement, one end of the heat dissipation duct connected to the radiator fits with the air outlet of the radiator.

[0013] As an improvement, the heat dissipation duct adopts a closed structure of a heat preservation plate and an iron sheet frame.

[0014] As an improvement, the quick opening is an openable and closable cover plate arranged on the side wall of the heat dissipation duct.

[0015] 3. Beneficial Effects

[0016] The advantages of the utility model compared with the prior art are:

[0017] 1. Directly transmit the high-temperature air emitted by the power unit to the outside to achieve cooling;

[0018] 2. In hot summer weather, the quick opening is closed to ensure that the high-temperature air is directly discharged to the outside along the heat dissipation duct. In cold winter weather, the quick opening is opened to allow the high-temperature air to be dissipated into the inverter room through the quick opening position, and the high-temperature air is used to heat the room and keep warm;

[0019] 3. Set up a special plug board. When the temperature is low in winter, the plug board is closed to isolate the indoor passage from the outside, ensuring that all high-temperature air enters the room through the quick opening to heat the room; at the same time, in summer, the plug board is opened to open the external circulation channel to ensure that the high-temperature air is dissipated to the outside through the air duct to cool the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a heat dissipation duct of a high-voltage frequency converter.

[0021] Figure 2 The utility model is a front view of a heat dissipation duct of a high-voltage frequency converter.

[0022] Figure 3 The utility model is a schematic diagram of the internal structure of a heat dissipation duct of a high-voltage inverter heat dissipation duct.

[0023] As shown in the figure: 1. Cooling duct; 2. Quick opening; 3. Insert board. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] As attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, a high-voltage inverter heat dissipation duct includes a heat dissipation duct 1 connected to the inverter's own radiator, the other end of the heat dissipation duct 1 extends to the outdoors, two quick openings 2 are provided on the side of the heat dissipation duct 1 close to the inverter, and a movable plug plate 3 is provided on the outlet side of the heat dissipation duct 1; the heat dissipation duct 1 is supported by angle irons to form a one-way channel structure.

[0027] One end of the heat dissipation duct 1 connected to the radiator fits the air outlet of the radiator; the heat dissipation duct 1 adopts a closed structure of a heat preservation plate and an iron sheet frame; the quick opening 2 is an openable and closable cover plate arranged on the side wall of the heat dissipation duct 1.

[0028] The above structure has the following advantages:

[0029] 1. According to the indoor temperature of the inverter, the switch of the heat dissipation duct 1 can be flexibly adjusted to meet the needs of indoor cooling and heat preservation. At the same time, in the high temperature in summer, the high-temperature air can be processed and transferred from the source, which not only provides reliable guarantee for the safe and stable operation of the equipment, but also can greatly save the power consumption of indoor cooling / heat preservation equipment (air conditioners, axial flow fans, etc.), killing two birds with one stone.

[0030] 2. The heat dissipation air duct 1 is a one-way channel to the outside world, which means that only the high-temperature air in the room can be transported to the outside through the air duct, and the humid and dusty air outside cannot enter the room. This ensures the safe and stable operation of the inverter. The air with dust and moisture will not enter the power unit of the inverter, avoiding the occurrence of unsafe incidents.

[0031] 3. The heat dissipation duct 1 is simple to manufacture and install, and is a "once and for all" device. It can be used for a long time after the manufacture and installation is completed, and has no operating costs and no safety hazards. However, the use effect is more obvious than some existing cooling and heating equipment.

[0032] The specific method of use is as follows: angle iron is used as the main supporting structure of the heat dissipation duct 1, and a corresponding heat dissipation duct 1 frame is made according to the shape of the inverter's own radiator outlet. The overall length of the frame satisfies: one end is connected to the outlet of the inverter's own radiator, and the other end is connected to the wall of the inverter room to form a one-way channel structure. After the structure is completed, the structure is closed with materials such as insulation boards or iron sheets. Before closing, a plug plate 3 is made at the outlet of the structure according to the inner diameter of the duct. The plug plate 3 can be movable to block or open the interior of the entire heat dissipation duct 1 as needed; on the other side of the duct, near the position of the inverter's own radiator outlet, a quick opening 2 is set on each side of the duct, and the quick opening 2 is a quick opening cover. During use, if it is necessary to dissipate heat indoors, the quick openings 2 on both sides are closed to allow the high-temperature air indoors to be discharged to the outdoors through the duct. When it is necessary to insulate and heat the indoors, the plug plate 3 of the heat dissipation duct 1 is closed and the quick openings 2 on both sides are opened, so that the high-temperature air enters the room and increases the indoor temperature. After the entire air duct is produced, it is reinforced as a whole based on actual conditions to ensure that it will not fall off or deform during use.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0035] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A heat dissipation duct for a high-voltage frequency converter, comprising a heat dissipation duct (1) connected to a heat sink of the frequency converter itself, characterized in that: The other end of the heat dissipation duct (1) extends to the outside of the room. The heat dissipation duct (1) is provided with two quick openings (2) on the side close to the frequency converter. A movable plug plate (3) is provided inside the outlet side of the heat dissipation duct (1); The heat dissipation air duct (1) is supported by angle irons to form a one-way channel structure.

2. The high-voltage inverter heat dissipation duct according to claim 1, characterized in that: One end of the heat dissipation air duct (1) connected to the radiator fits in with the air outlet of the radiator.

3. The high-voltage inverter heat dissipation duct according to claim 1, characterized in that: The heat dissipation air duct (1) adopts a closed structure of a heat preservation plate and an iron sheet frame.

4. The high-voltage inverter heat dissipation duct according to claim 1, characterized in that: The quick opening (2) is an openable and closable cover plate arranged on the side wall of the heat dissipation air duct (1).

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