CN113315344A - Frequency conversion cabinet and heat dissipation method thereof - Google Patents

Frequency conversion cabinet and heat dissipation method thereof Download PDF

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Publication number
CN113315344A
CN113315344A CN202110626473.2A CN202110626473A CN113315344A CN 113315344 A CN113315344 A CN 113315344A CN 202110626473 A CN202110626473 A CN 202110626473A CN 113315344 A CN113315344 A CN 113315344A
Authority
CN
China
Prior art keywords
frequency conversion
heat dissipation
air
conversion cabinet
air outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110626473.2A
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Chinese (zh)
Inventor
梅正茂
曲鹏宇
段成杰
李百宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202110626473.2A priority Critical patent/CN113315344A/en
Publication of CN113315344A publication Critical patent/CN113315344A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a frequency conversion cabinet and a heat dissipation method thereof, wherein the frequency conversion cabinet comprises a cabinet body, at least one heat dissipation area, a temperature detection device, a controller and at least one air outlet assembly are arranged in the frequency conversion cabinet, the heat dissipation area comprises at least one electronic component, the air outlet assembly comprises an air inlet and air outlet swing blade assemblies which are in one-to-one correspondence with the heat dissipation areas, and the air outlet swing blade assemblies are electrically connected with the controller; the cabinet body still includes the tonifying wind subassembly, and the tonifying wind subassembly includes the tonifying wind mouth. Compared with the prior art, this application is through the timely swing heat dissipation of the air-out pendulum leaf subassembly of this heat dissipation district of subregion control, has realized reducing the harm that high components and parts place within range generate heat for a long time and cause self and components and parts on every side, has also improved the life of frequency conversion cabinet simultaneously.

Description

Frequency conversion cabinet and heat dissipation method thereof
Technical Field
The invention relates to the technical field of household appliances, in particular to a frequency conversion cabinet and a heat dissipation method thereof.
Background
In modern home life, air conditioners, washing machines and the like are indispensable household appliances for every family, but the power consumption of the household appliances is not small, and with the progress of modern science and technology, a frequency converter appears, combines a frequency conversion technology and a microelectronic technology, controls power control equipment of an alternating current motor by changing the frequency mode of a working power supply of the motor, and plays a role in energy conservation. With the improvement of the industrial automation level, the frequency converter is widely applied and is one of the indispensable important devices for speed regulation control and energy conservation of modern motors. The existing frequency conversion equipment has an unsatisfactory heat dissipation effect, and can not effectively dissipate some power devices with larger heat productivity in the working process, so that the frequency converter is easily shut down or damaged due to overhigh temperature and cannot normally run.
Disclosure of Invention
The invention provides a frequency conversion cabinet and a heat dissipation method thereof, and solves the technical problem that in the prior art, the heat dissipation performance of the frequency conversion cabinet is poor.
The technical scheme adopted by the invention is as follows: the utility model provides a frequency conversion cabinet, includes the cabinet body, still includes: the heat dissipation area is arranged in the frequency conversion cabinet; a temperature detection device for monitoring each heat dissipation area; the controller is connected with the temperature detection device; the air outlet assembly comprises an air inlet arranged in the cabinet body; the air outlet swinging blade assemblies are arranged at the air inlet and correspond to the heat dissipation areas one by one, and the air outlet swinging blade assemblies are electrically connected with the controller.
Further, the temperature detection device is an infrared detection device.
Further, the frequency conversion cabinet further comprises an angle sensor which is used for detecting the motion angle of the air outlet swing blade assembly and electrically connected with the controller.
Further, the cabinet body still includes the air supplement subassembly that can break, the air supplement subassembly is including seting up in the internal portion of cabinet at least one air supplement mouth.
Furthermore, the air supply opening is arranged opposite to the air inlet.
Furthermore, the air supplementing assembly comprises an air supplementing air channel, one end of the air supplementing air channel is communicated with the air supplementing opening, and the other end of the air supplementing air channel is the air supplementing opening.
Further, the heat dissipation area comprises at least one electronic component.
Furthermore, the air outlet swing blade assembly comprises a set of driving assembly and at least one air deflector in transmission connection with the driving assembly.
The inside of the frequency conversion cabinet is divided into at least one heat dissipation area, and when the actual temperature of the heat dissipation area exceeds a preset temperature value, the air outlet direction of an air outlet swinging blade assembly corresponding to the heat dissipation area is adjusted to be located in the heat dissipation area.
Further, the swinging speed of the air outlet swinging blade assembly is controlled according to the difference value between the actual temperature of the heat dissipation area and the preset temperature value, and the larger the difference value is, the faster the swinging speed of the air outlet swinging blade assembly is.
Further, when the sum of the areas of all the heat dissipation areas with the actual temperature exceeding the preset temperature value exceeds the preset area, all air supply openings in the frequency conversion cabinet are opened to comprehensively dissipate heat of the frequency conversion cabinet.
Preferably, the predetermined area is 300 mm.
Further, when the distance from the heat dissipation area with the actual temperature exceeding the preset temperature value to the air outlet swinging blade is larger than the distance from the air supply opening, which is closest to the heat dissipation area, in the frequency conversion cabinet is opened to dissipate heat of the heat dissipation area.
Further, when an air supply opening is formed in the frequency conversion cabinet, the air outlet swing blade assembly stops swinging.
Compared with the prior art, this application is at least one radiating area in the frequency conversion cabinet, the radiating area corresponds there is air-out pendulum leaf subassembly, actual temperature through detecting the radiating area is greater than preset temperature value, the air-out pendulum leaf subassembly that control and this radiating area correspond in time dispels the heat to this region, the air-out pendulum leaf subassembly through this radiating area of subregion control in time swings the heat dissipation, the harm that self and surrounding components and parts caused has been generated heat for a long time in having realized reducing the high components and parts place scope that generates heat, the life of frequency conversion cabinet has also been improved simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a frequency conversion cabinet according to the present invention;
fig. 2 is a schematic diagram of a control flow of a heat dissipation mode of the frequency conversion cabinet in the invention.
1. An angle sensor; 2. a temperature detection device; 3. a controller; 4. a valve; 5. an air outlet swing blade assembly; 6. a cabinet body; 7. an air outlet assembly; 8. an air supply duct; 9. an air outlet; 10. an air supply opening; 11. an electronic component.
Detailed Description
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the frequency conversion cabinet in the application mainly includes a rectangular cabinet body 6, a plurality of electronic components 11 are arranged inside the cabinet body 6, at least one air outlet assembly 7 is arranged above the inside of the cabinet body 6, the number of the air outlet assemblies 7 can be selected by self according to the actual size of the frequency conversion cabinet, and the air outlet range can be required to cover the inside of the cabinet body 6; at least one air outlet 9 is respectively arranged on the lower end and the side wall of the cabinet body 6 so as to form airflow with the air outlet assembly 7.
In one embodiment, the most common fan is selected for the air outlet assembly 7 of the present application.
The air outlet assembly 7 comprises an air inlet arranged in the cabinet body 6, the air outlet swing blade assembly 5 is arranged at the air inlet, meanwhile, the interior of the cabinet body 6 is divided into at least one heat dissipation area, each heat dissipation area comprises at least one electronic component 11, and a temperature detection device 2 for monitoring the temperature of all the heat dissipation areas in real time is arranged in the cabinet body 6; simultaneously the quantity of air-out pendulum leaf subassembly 5 and the quantity one-to-one of heat dissipation district, and with air-out pendulum leaf subassembly 5 be the corresponding relation promptly nearest that heat dissipation district, set up like this and be convenient for in time dispel the heat to each heat dissipation district, when the temperature that has a certain heat dissipation district is higher, the air-out pendulum leaf subassembly 5 that this heat dissipation district corresponds of control can in this heat dissipation district.
Preferably, in this embodiment, each heat dissipation area includes one electronic component 11 as an example, and an area with a certain value as a radius and with one electronic component 11 as a center is a heat dissipation area; and temperature-detecting device 2 adopts infrared detection device, infrared detection device sets up the top at the internal 6 of cabinet, it carries out temperature monitoring to rotate the inside temperature monitoring that scans whole cabinet body 6 in real time of infrared detection device, and infrared detection device is connected with a controller 3 electricity, simultaneously controller 3 is connected with all air-out pendulum leaf subassembly 5 electricity, when infrared detection device detects the temperature of one of them radiating area and has exceeded the preset temperature value, then send detecting signal to controller 3, controller 3 then controls the air-out pendulum leaf subassembly 5 that this radiating area corresponds and begins to carry out the swing back and forth in the scope in this radiating area, thereby in time dispel the heat to this radiating area, and infrared detection device can also detect the total area of the radiating area that the temperature exceeded the preset temperature value, and transmit for in the controller 3.
Further, this application has still set up an angle sensor 1 in the cabinet body 6, and the sensor is used for detecting the turned angle of air-out pendulum leaf subassembly 5, and angle sensor 1 and 3 electricity connections of controller to whether the turned angle of real-time feedback air-out pendulum leaf subassembly 5 is in the radiating area, controller 3 then adjusts air-out pendulum leaf subassembly 5 according to the position in radiating area.
Further, the controller 3 may also control the swing speed of the air outlet swing blade assembly 5 according to the difference between the actual temperature value of the heat dissipation area and the preset temperature value, for example: the preset temperature value is selected to be 20-25 degrees, and when the actual temperature of the heat dissipation area is detected to be 3 degrees higher than the preset temperature value, the controller 3 controls the frequency of the air outlet swinging blade assembly 5 to be increased (frequency rising), so that the heat dissipation speed of the heat dissipation area is guaranteed to be fast.
It should be added that each air outlet swing blade assembly 5 includes a set of driving assembly and at least one air deflector in transmission connection with the driving assembly, that is, each set of air outlet swing blade assembly 5 operates independently, the driving assembly includes a driving motor and an air deflector arranged on an output shaft of the driving motor, the air deflectors are simultaneously connected to the output shaft of the driving motor through a crankshaft, and the output shaft rotates to drive all the air deflectors of the air outlet swing blade assembly 5 to rotate synchronously.
Further, the cabinet body 6 still includes one set of air make-up subassembly, the air make-up subassembly is including seting up at least one air make-up mouth 10 in the cabinet body 6 inside, and air make-up mouth 10 sets up to the break-make form that can be controlled by valve 4, the air make-up subassembly is used for through air make-up mouth 10 to the inside air supply of the cabinet body 6 to generating heat seriously when the inside electronic components 11 of the cabinet body 6, when the wind-out pendulum leaf subassembly 5 is difficult to play the radiating effect that is showing, ventilate to the frequency conversion cabinet inside through the air make-up subassembly, in order to reach comprehensive radiating effect.
Preferably, the air supplementing assembly comprises an air supplementing air duct 8, one end of the air supplementing air duct 8 is communicated with an air supplementing opening 10, the other end of the air supplementing air duct is connected with a set of air supply assembly, the air supply assembly can be a set of independently arranged fan or blower, but in order to save cost, the air supply assembly in the embodiment uses the air outlet assembly 7, namely, a pipeline is communicated at an air outlet 9 of the air outlet assembly 7 to serve as the air supplementing air duct 8, the pipeline is internally arranged in the side wall of the cabinet body 6, a switch valve is arranged in the air supplementing air duct 8, and the controller 3 controls the switch of the switch valve to supplement air in the cabinet body 6.
Preferably, the quantity that the moisturizing mouth 10 in this application set up is not limited, but the position of setting up of moisturizing mouth 10 requires on the relative air intake position in the cabinet body 6, sets up like this and can guarantee to provide sufficient amount of wind to the cabinet body 6 inside, and air outlet 9 blows to the upper portion of cabinet body 6, and moisturizing mouth 10 blows to the lower part of cabinet body 6, carries out comprehensive heat dissipation to the cabinet body 6 inside.
Meanwhile, when the air outlet 9 is arranged at the upper part of the cabinet body 6, the electronic component 11 at the lower part in the cabinet body 6 is limited in distance to a certain extent, so that the heat dissipation effect is not optimal, therefore, the air supply opening 10 in the present application can also take care of the electronic component 11 far away from the air outlet 9, and the air supply opening 10 is opened alone to dissipate heat of part of the electronic components 11 at the lower part in the cabinet body 6.
The application also specifically provides a heat dissipation method of the frequency conversion cabinet, as shown in fig. 2:
when the frequency conversion cabinet is started, the temperature detection device 2 starts to monitor the real-time temperature of each heat dissipation area in the cabinet body 6 in real time at the moment, and judges whether the temperature value of any heat dissipation area exceeds a preset temperature value or not;
if the temperature value of the heat dissipation area does not exceed the preset temperature value, the air outlet assembly 7 can normally operate at the moment, but the air outlet swing blade assembly 5 does not swing so as to normally dissipate heat of the cabinet body 6; or the air outlet component 7 does not operate at all, and the frequency conversion cabinet naturally dissipates heat.
When the temperature value of the heat dissipation area exceeds the preset temperature value, the controller 3 controls the air outlet swing blade assembly 5 corresponding to the heat dissipation area with the temperature exceeding the set value to swing at the moment, the air outlet direction of the air outlet swing blade assembly 5 is ensured to be positioned in the heat dissipation area corresponding to the heat dissipation area, the air outlet swing speed of the air outlet swing blade assembly 5 is controlled according to the difference value of the actual temperature of the heat dissipation area and the preset temperature value, and the larger the difference value of the actual temperature and the preset temperature value is, the faster the air outlet swing speed of the air outlet swing blade assembly 5 is controlled; the swinging of the air outlet swinging blade component 5 in the corresponding heat dissipation area is accelerated, so that the heat dissipation area is increased, and the heat in the heat dissipation area is dissipated timely and quickly.
And when the temperature value in the radiating area exceeded preset temperature value, can also further increase the judgement step, judge that all actual temperatures exceed the area sum of the radiating area of presetting the temperature promptly and be greater than whether be greater than 300mm, when heat radiating area exceeded 300mm, it has acted on very little to simply use air-out pendulum leaf subassembly 5 to dispel the heat this moment, consequently can open air supplement opening 10, dispel the heat to cabinet body 6 comprehensively.
When opening air supply opening 10, air-out pendulum leaf subassembly 5 both can normal operating, also can close, that is to say that the setting up of air supply opening 10 can carry out the heat dissipation of large tracts of land to cabinet 6 inside, and the effect of air-out pendulum leaf subassembly 5 does not play decisive role this moment, therefore whether opening of air-out pendulum leaf subassembly 5 is not critical, but if open air-out pendulum leaf subassembly 5 and air supply opening 10 in step, radiating speed also can be faster.
The above specific embodiments are only intended to illustrate the inventive concept and many modifications and variations may be made by those skilled in the art within the spirit of the invention, which are included within the scope of the invention.

Claims (14)

1. The utility model provides a frequency conversion cabinet, includes the cabinet body (6), its characterized in that still includes: the heat dissipation area is arranged in the frequency conversion cabinet; a temperature detection device (2) for monitoring the temperature of each heat dissipation area; a controller (3) connected to the temperature detection device (2); the air outlet assembly (7) is arranged in the cabinet body (6), and the air outlet assembly (7) comprises an air inlet arranged in the cabinet body (6); and the air outlet swinging blade assembly (5) is arranged at the air inlet, corresponds to each heat dissipation area one by one and is electrically connected with the controller (3).
2. Frequency conversion cabinet according to claim 1, characterized in that the temperature detection means (2) is an infrared detection means.
3. The frequency conversion cabinet according to claim 1, further comprising an angle sensor (1) electrically connected to the controller (3) for detecting a swing angle of the outlet air vane assembly (5).
4. Frequency conversion cabinet according to claim 1, characterized in that the cabinet body (6) further comprises an on-off air supply assembly comprising at least one air supply opening (10) opened inside the cabinet body (6).
5. Frequency conversion cabinet according to claim 4, characterized in that the air supply opening (10) is arranged opposite to the air inlet opening.
6. The frequency conversion cabinet according to claim 4, wherein the air supply assembly comprises an air supply duct (8), one end of the air supply duct (8) is communicated with the air supply opening (10), and the other end of the air supply duct is the air supply opening (10).
7. Frequency conversion cabinet according to claim 1, characterized in that the heat dissipation area comprises at least one electronic component (11).
8. The frequency conversion cabinet according to claim 1, wherein the air outlet swing blade assembly (5) comprises a set of driving assembly and at least one air deflector in transmission connection with the driving assembly.
9. The heat dissipation method of the frequency conversion cabinet is characterized in that the interior of the frequency conversion cabinet is divided into at least one heat dissipation area, and when the actual temperature of the heat dissipation area exceeds a preset temperature value, the air outlet direction of an air outlet swinging blade assembly (5) corresponding to the heat dissipation area is adjusted to be located in the heat dissipation area.
10. The heat dissipation method of the inverter cabinet according to claim 9, wherein the swing speed of the air outlet flap assembly (5) is controlled according to a difference between an actual temperature of the heat dissipation area and a preset temperature value, and the larger the difference between the actual temperature and the preset temperature value, the faster the swing speed of the air outlet flap assembly (5) is.
11. The method for dissipating heat of a frequency conversion cabinet according to claim 9, wherein when the sum of the areas of all heat dissipating areas with the actual temperature exceeding the preset temperature value exceeds the preset area, all air inlets (10) inside the frequency conversion cabinet are opened to dissipate heat of the frequency conversion cabinet in a complete manner.
12. The method for dissipating heat of a frequency conversion cabinet according to claim 11, wherein the predetermined area is 300 mm.
13. The method for dissipating heat of a frequency conversion cabinet according to claim 9, wherein when a distance from a heat dissipating area with an actual temperature exceeding a preset temperature value to the air outlet flap is greater than a distance from the air supply opening (10), the air supply opening (10) closest to the heat dissipating area inside the frequency conversion cabinet is opened to dissipate heat from the heat dissipating area.
14. The method for dissipating heat from a frequency conversion cabinet according to any one of claims 11 or 13, wherein the air outlet swing blade assembly (5) stops swinging when an air supply opening (10) is opened inside the frequency conversion cabinet.
CN202110626473.2A 2021-06-04 2021-06-04 Frequency conversion cabinet and heat dissipation method thereof Pending CN113315344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110626473.2A CN113315344A (en) 2021-06-04 2021-06-04 Frequency conversion cabinet and heat dissipation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110626473.2A CN113315344A (en) 2021-06-04 2021-06-04 Frequency conversion cabinet and heat dissipation method thereof

Publications (1)

Publication Number Publication Date
CN113315344A true CN113315344A (en) 2021-08-27

Family

ID=77377375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110626473.2A Pending CN113315344A (en) 2021-06-04 2021-06-04 Frequency conversion cabinet and heat dissipation method thereof

Country Status (1)

Country Link
CN (1) CN113315344A (en)

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