CN117553355A - Electrical box cooling device, control method, refrigerating system and air conditioner - Google Patents
Electrical box cooling device, control method, refrigerating system and air conditioner Download PDFInfo
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- CN117553355A CN117553355A CN202311644437.4A CN202311644437A CN117553355A CN 117553355 A CN117553355 A CN 117553355A CN 202311644437 A CN202311644437 A CN 202311644437A CN 117553355 A CN117553355 A CN 117553355A
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- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- 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
-
- 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
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Sustainable Development (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an electric box cooling device, a control method, a refrigeration system and an air conditioner. The electric box cooling device comprises an electric box body, a collecting assembly and a conveying piece; the electric box body is provided with a second air inlet, and the collecting assembly is used for collecting the cold energy released by the air suction pipe; the conveying part conveys the cold energy to the second air inlet so as to radiate the components in the electric box body. The invention fully utilizes the cold quantity generated by the air suction pipe in the process of conveying the refrigerant, can strengthen the transmission of the cold quantity on the premise of not reducing the refrigerating quantity of the air conditioner, maximally utilizes the cold quantity emitted by the air suction pipe, avoids the loss of the cold quantity and realizes the recycling of the cold quantity.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an electric box cooling device, a control method, a refrigerating system and an air conditioner.
Background
When the air conditioner operates, the temperature rise of components in the electric box cannot be too high, otherwise the normal operation or the service life of the components can be influenced, when the ambient temperature is higher, the requirement on the refrigerating comfort of the air conditioner is higher, namely, the air conditioner is required to have enough cold output under the high-temperature working condition, the frequency of the air conditioner cannot be reduced under the high-temperature working condition, and the temperature rise of the components can be higher due to the high frequency running. The integral air conditioner mostly relies on the radiating fin structure on the electric appliance box to perform air cooling and radiating, and can meet the requirement of controlling the temperature rise of the electric appliance box under the conventional working condition. However, when the outdoor temperature is high, the heat generated by the heating of the components is accumulated in the electrical box due to the sealing structure of the electrical box, and the heat taken away by the outdoor high-temperature air through the radiating fins is limited at the moment, so that the effective heat dissipation can not be carried out, the temperature rise of the components exceeds the standard, the whole machine can not operate,
disclosure of Invention
The invention provides an electric box cooling device, a control method, a refrigerating system and an air conditioner, which can solve the technical problem that heat generated by heating of components is accumulated in the electric box and cannot be effectively radiated due to the sealing structure of the electric box.
The invention provides an electric box cooling device which comprises an electric box body, a collecting assembly and a conveying piece, wherein the collecting assembly is arranged on the electric box body; the electric box body is provided with a second air inlet, and the collecting assembly is used for collecting the cold energy released by the air suction pipe; the conveying part conveys the cold energy to the second air inlet so as to radiate the components in the electric box body.
In some embodiments, the collecting assembly is arranged on the air suction pipe, and air in the collecting assembly exchanges heat with cold energy.
In some embodiments, the collection assembly includes a heat exchange member in contact with an outer wall of the suction duct, the heat exchange member for accelerating heat exchange between air and cold.
In some embodiments, the heat exchange member is a plurality of heat exchange fins which are sequentially arranged at intervals, and the heat exchange fins are annular.
In some embodiments, the collection assembly further comprises a housing disposed on the suction tube, the heat exchange member being located in the housing;
the shell is provided with a first air inlet and a first air outlet, so that air entering the shell is discharged from the first air outlet after being subjected to heat exchange and cooling with cold energy.
In some embodiments, the conveying member is a fan that blows the cold in the collection assembly to the second air intake.
In some embodiments, the conveying member conveys the cold energy to the second air inlet through the air supply pipe, the second air inlet is provided with a valve, and the air inlet end of the conveying member blows the cold energy in the collecting assembly into the air supply pipe.
In some embodiments, the air intake end of the transport is provided with a filter screen.
In some embodiments, the electrical box body includes a box cover, and a plurality of air outlets are arranged on the box cover.
In some embodiments, the air outlet is an air outlet grille, and the plurality of air outlets are arranged at the top of the box cover at intervals.
In some embodiments, a main board is disposed in the electrical box body, and the main board opens the conveying member according to the temperature of the component to convey the cold energy to the second air inlet.
In some embodiments, a temperature sensor is arranged on the component, and when the conveying part is a fan and the second air inlet is provided with a valve, the main board opens the valve and the conveying part according to the temperature detected by the temperature sensor so as to convey cold to the second air inlet.
The control method of the electric box cooling device is characterized in that the conveying member or the low-frequency operation conveying member or the high-frequency operation conveying member is closed according to the temperature of the components.
In some embodiments, when the temperature sensor is disposed on the component, the conveying member is a fan, and the second air inlet is provided with a valve,
the temperature of the components gradually rises within n seconds before the air conditioner is started and operated, the temperature sensor detects that the temperature of the components is lower than T0, the valve and the conveying part are closed, and the internal air of the electric box body naturally convects to dissipate heat of the components;
when the air conditioner is started and operated for m seconds, the temperature sensor detects that the temperature of the component exceeds the T0 temperature within T seconds continuously, the valve is opened, the conveying part operates at low frequency, and the cold energy flows to the second air inlet at a first speed;
when the air conditioner is started and operated for k seconds, the temperature sensor detects that the temperature of the component exceeds the temperature T1 within T seconds, the valve is opened, the conveying piece operates at high frequency, and the cold energy flows to the second air inlet at a second speed;
wherein the second speed is greater than the first speed;
and when the heat exchange system of the electrical box stops running for h seconds, the valve is opened, the conveying part continues to run, and when the temperature of the components is gradually reduced, the valve and the conveying part are closed.
A refrigerating system comprises a compressor, a heat exchanger and the electric box cooling device, wherein the compressor is provided with an air suction pipe, and one end of the air suction pipe, which is far away from the compressor, is connected with the heat exchanger.
An air conditioner comprises a refrigerating system and is characterized in that the refrigerating system is the refrigerating system.
The electric box cooling device, the control method, the refrigerating system and the air conditioner provided by the invention have the following beneficial effects:
when the refrigerant is conveyed in the air suction pipe, the outer wall of the air suction pipe generates cold energy and releases the cold energy into the collecting assembly, the cold energy is discharged from the collecting assembly, and the conveying part conveys the cold energy to the second air inlet. The invention fully utilizes the cold quantity generated by the air suction pipe in the process of conveying the refrigerant, can strengthen the transmission of the cold quantity on the premise of not reducing the refrigerating quantity of the air conditioner, maximally utilizes the cold quantity emitted by the air suction pipe, avoids the loss of the cold quantity and realizes the recycling of the cold quantity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic diagram of a refrigeration system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cooling device for an electrical box according to an embodiment of the present invention;
FIG. 3 is a schematic view of a collection assembly according to an embodiment of the present invention;
fig. 4 is a schematic diagram of connection between an electrical box body and a collection assembly according to an embodiment of the present invention;
fig. 5 is a schematic view of an electrical box body according to an embodiment of the present invention.
The accompanying drawings: 1-an air suction pipe; 2-a collection assembly; 201-a first air inlet; 202-a first air outlet; 211-a housing; 212-heat exchange piece; 22-conveying members; 221-a filter screen; 3-an electrical box body; 301-a second air inlet; 302-box cover; 303-an air outlet grille; 304-a motherboard; 305-a cassette bottom plate; 306-a motherboard cover; 307-motherboard backplane; 4-compressors; a 5-heat exchanger; 6-blast pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Referring to fig. 1 to 3 in combination, according to an embodiment of the present invention, there is provided an electrical box cooling device including an electrical box body 2, a collecting assembly 2, and a conveying member 22; the electric box body 3 is provided with a second air inlet 301, and the collecting assembly 2 is used for collecting the cold energy released on the air suction pipe 1; the conveying member 22 conveys the cooling capacity to the second air inlet 301 to dissipate heat of components inside the electrical box body 3.
When the refrigerant is conveyed in the suction pipe 1, the outer wall of the suction pipe 1 generates cold energy and releases the cold energy into the collecting assembly 2, the cold energy is discharged from the collecting assembly 2, and the conveying member 22 conveys the cold energy to the second air inlet 301. The invention fully utilizes the cold quantity generated by the air suction pipe 1 in the process of conveying the refrigerant, can strengthen the transmission of the cold quantity on the premise of not reducing the refrigerating quantity of the air conditioner, maximally utilizes the cold quantity emitted by the air suction pipe 1, avoids the loss of the cold quantity and realizes the recycling of the cold quantity.
The compressor 4 sucks the refrigerant in the suction pipe 1, and the refrigerant just flowing out of the heat exchanger 5 is the largest in the process of conveying the refrigerant in the suction pipe 1, and the collecting assembly 2 of the present invention is preferably arranged near the outlet of the gas collecting pipe of the heat exchanger 5. In addition, the conventional pipeline is usually provided with conventional weight materials such as damping blocks and the like, and the invention can properly adjust the setting position of the collecting assembly 2 on the air suction pipe 1 according to the weight of the pipeline.
The collecting assembly 2 is arranged on the air suction pipe 1, and air in the collecting assembly 2 exchanges heat with cold energy.
The collecting assembly 2 comprises a heat exchanging piece 212, the heat exchanging piece 212 is in contact with the outer wall of the air suction pipe 1, and the heat exchanging piece 212 is used for accelerating the heat exchange between air and cold energy.
The heat exchange member 212 is a plurality of heat exchange fins which are sequentially arranged at intervals, and the heat exchange fins are annular.
In this embodiment, the heat exchange member 212 is a plurality of heat exchange fins, which are annular, and the plurality of heat exchange fins are sequentially arranged on the air suction pipe 1 at intervals. The heat exchanging fins promote the cold and heat exchange between the low-temperature refrigerant and the air, strengthen the cold energy transfer, and fully cool the air in the shell 211 and then discharge the air. Specifically, the heat exchange fin can be made of a metal material with good heat conduction performance such as aluminum or copper, and aluminum is preferably used for reducing the cost of the product.
The collecting assembly 2 further comprises a housing 211, the housing 211 is arranged on the air suction pipe 1, and the heat exchange member 212 is positioned in the housing 211; the housing 211 has a first air inlet 201 and a first air outlet 202, so that air entering the housing 211 exchanges heat with cold energy and is cooled and then discharged from the first air outlet 202.
As a specific embodiment, the housing 211 has a cylindrical shape, and the housing 211 includes a first half-shell and a second half-shell which are detachably connected, and the first half-shell and the second half-shell are connected by a buckle, and the first half-shell and the second half-shell are connected to form the housing 211. The top and the bottom of casing 211 are provided with the through-hole with breathing pipe 1 looks adaptation respectively, when the casing 211 needs to be installed, with first half shell and second half shell lock on breathing pipe 1, and breathing pipe 1 vertical setting is in casing 211 after the installation is accomplished. The shell 211 of the invention is of a detachable structure, so that the installation position of the shell 211 can be conveniently adjusted, and the independent assembly of the cooling device is realized.
As a specific embodiment, the second half shell is provided with a plurality of first air inlets 201, and the first half shell is provided with a plurality of first air outlets 202. The bottoms of the first half shell and the second half shell are respectively provided with a plurality of drain holes, air enters the shell 211 through the first air inlet 201, condensed water is generated after the air is cooled in the cavity of the shell 211, and the condensed water is discharged from the drain holes, so that the condensed water is prevented from being accumulated in the shell 211.
Referring to fig. 4 in combination, the conveying member 22 is a fan, and the conveying member 22 blows the cold energy in the collecting assembly 2 to the second air inlet 301. Preferably an axial flow fan, which serves to drive the circulation of air.
The conveying member 22 conveys the cold energy to the second air inlet 301 through the air supply pipe 6, the second air inlet 301 is provided with a valve, and the air inlet end of the conveying member 22 blows the cold energy in the collecting assembly 2 into the air supply pipe 6.
In particular, the air supply pipe 6 can be made of plastic or sponge with better heat preservation, so that the cooled air is prevented from being heated by the outside air again in the conveying process.
As a specific embodiment, the conveying member 22 is disposed at the first air outlet 202, the air inlet end of the conveying member 22 faces the heat exchange member 212, the air outlet end of the conveying member 22 faces the first air outlet 202, and the conveying member 22 outputs the air cooled in the housing 211 from the first air outlet 202.
In this embodiment, after the conveying member 22 is started, the conveying member 22 sucks air around the housing 211, the air is sucked into the chamber of the housing 211 from the first air inlet 201, the air exchanges heat with the low-temperature refrigerant in the housing 211 under the action of the heat exchange member 212, and the air is cooled and then is output from the first air outlet 202.
The air inlet end of the conveying member 22 is provided with a filter screen 221, and the filter screen 221 is detachably connected with the housing 211.
As a specific embodiment, the filter screen 221 is configured as an up-down pull structure, the housing 211 is provided with an outwardly extending sleeve, the sleeve is provided with the first air outlet 202, the sleeve is opposite to the first air inlet 201, the conveying member 22 is fixedly arranged in the sleeve, and a clamping groove is arranged on the sleeve and is close to the air inlet end of the conveying member 22, so that the filter screen 221 is fixed. The diameter of the filter screen 221 is matched with the cavity of the sleeve to ensure that the filter screen 221 can cover the air inlet end of the conveying member 22, and the arrangement can prevent the conveying member 22 from sucking sundries, damaging the conveying member 22 and further avoiding the sundries from entering the electrical box to cause short circuit of components; the filter screen 221 can also be removed periodically for cleaning or replacement.
The electrical box body 3 is arranged on the rear partition board at the outdoor side, the traditional electrical box body 3 is provided with the radiating fin structure to radiate the electrical box body 3, and the invention is not provided with the radiating fin structure, but radiates the heat by conveying cooled air through the collecting assembly 2, so that the structural arrangement can save space and realize the light weight and the miniaturization of the electrical box.
Referring to fig. 5 in combination, the electrical box body 3 includes a box cover 302, a box bottom plate 305, and a main board 304, the box cover 302 and the box bottom plate 305 being connected to each other to form an electrical box housing, the main board 304 being provided in the electrical box housing. Specifically, a motherboard cover 306 and a motherboard bottom plate 307 are also provided on both sides of the motherboard 304, respectively.
The top of lid 302 is provided with air-out grid 303, and the hot air in the electrical apparatus box body 3 is discharged from air-out grid 303, and the lateral wall of lid 302 is provided with a plurality of second air intakes 301. Specifically, the top of lid 302 is provided with a plurality of air-out grids 303, and the width of air-out grid 303 is 3-4mm, both can ensure that the hot air in the electrical apparatus box body 3 discharges from air-out grid 303, can prevent that the rainwater from directly entering into the electrical apparatus box body 3 inside again, avoids the damage of components and parts.
Compared with the traditional sealed electric box structure, the invention is provided with the second air inlet 301 and the air outlet grille 303, one end of the second air inlet 301 is communicated with the air supply pipe 6, the other end of the second air inlet 301 faces to the heating component, when cooled air enters the electric box body 3 from the second air inlet 301, the second air inlet 301 can be aligned with the component with higher temperature rise to directly blow and dissipate heat of the component, thereby realizing rapid and efficient heat dissipation, realizing efficient cooling of the component with serious heat generation, and the air outlet grille 303 can discharge the high-temperature air after heat absorption.
The collecting assembly 2 is provided with a plurality of first air inlets 201 and first air outlets 202, and a plurality of second air inlets 301 are arranged on the electrical box body 3, wherein one first air outlet 202 is communicated with one air inlet.
At least two serious components and parts that generate heat are provided with in the electrical apparatus box body 3, components and parts and second air intake 301 one-to-one set up, when the serious components and parts that generate heat cool down, also can cool down other components and parts on the mainboard.
In this embodiment, the number of the air supply pipes 6, the first air outlets 202 and the second air inlets 301 are in one-to-one correspondence, and the number and positions of components with serious heat generation are different due to the different main boards 304, and the setting position of the second air inlets 301 is also adjusted according to the positions of the components, so that the second air inlets 301 are arranged near the components with higher temperature.
The main board 304 is arranged in the electrical box body 3, the temperature sensor is arranged on the components, and the main board 304 opens or closes the second air inlet 301 according to the component temperature detected by the temperature sensor. Specifically, the main board 304 may open or close the valve according to the temperature detected by the temperature sensor.
Referring to fig. 1 and 4, a refrigeration system includes a compressor 4, a heat exchanger 5 and the electrical box cooling device, where the compressor 4 is connected with the heat exchanger 5 through an air suction pipe 1, the electrical box body 3 has a second air inlet 301, the second air inlet 301 is communicated with the first air outlet 202 through an air supply pipe 6, and the collection assembly 2 conveys cooled air into the electrical box body 3 to cool components in the electrical box body 3.
In this embodiment, the heat exchanger 5 is an evaporator, the collecting assembly 2 is disposed on the air suction pipe 1, so as to accelerate the cold-heat exchange between the low-temperature refrigerant and the sucked air, and the cooled air is conveyed to the electrical box body 3 by the air supply pipe 6 at a certain speed, so that the components in the electrical box body 3 are cooled and radiated, and the temperature rise of the components is prevented from being too high. The invention fully utilizes the cold energy released by the air suction pipe 1 in the running process of the air conditioner and intensively conveys the cold energy into the electric box body 3, thereby cooling components and reducing the temperature in the electric box body 3, and achieving the effect of heat dissipation of the electric box.
Specifically, when the number of components with serious heat generation is plural, each component is provided with a temperature sensor respectively.
The control method of the electrical box cooling device is that the electrical box cooling device is used for closing the conveying member 22 or the low-frequency operation conveying member 22 or the high-frequency operation conveying member 22 according to the temperature of components.
Specifically, when the temperature sensor is disposed on the component, the conveying member 22 is a fan, and the second air inlet 301 is provided with a valve,
the temperature of the components gradually rises within n seconds before the air conditioner is started and operated, the temperature sensor detects that the temperature of the components is lower than T0, the valve and the conveying part 22 are closed, and the internal air of the electric box body 3 naturally convects to dissipate heat of the components;
when the air conditioner is started and operated for m seconds, the temperature sensor detects that the temperature of the component exceeds the T0 temperature within T seconds continuously, the valve is opened, the conveying piece 22 operates at low frequency, and the cold energy flows to the second air inlet 301 at a first speed;
when the heat exchange system of the electrical box operates for k seconds and then continuously operates for T seconds, the temperature sensor detects that the temperature of the component exceeds the temperature T1, the valve is opened, the conveying piece 22 operates at high frequency, and the cold energy flows to the second air inlet 301 at a second speed;
the second speed is greater than the second speed, that is, the flow rate of the refrigerant is faster when the conveying member 22 is operated at a high frequency.
And when the heat exchange system of the electrical box stops operating for h seconds, the valve is opened, the conveying member 22 continues to operate, and when the temperature of the components is gradually reduced, the valve and the conveying member 22 are closed.
Specifically, when at least two components with serious heat generation are arranged in the electrical box body 3, and the two components respectively correspond to one second air inlet 301;
after the air conditioner is started and operated for m seconds, the corresponding second air inlets 301 are independently opened according to the temperatures of the two components;
when the air conditioner is started and operated for k seconds, the second air inlets 301 corresponding to the two components are simultaneously opened.
In this embodiment, taking the electrical box body 3 in which the first component and the second component are disposed as an example, when the air conditioner is turned on to perform cooling or heating, each component of the electrical box starts to be electrified, the compressor 4 starts to operate, the frequency starts to rise to the calculation target frequency to operate, the temperature of each component rises gradually, the temperature sensing module starts to detect the temperature of each component in real time, and the temperature of the first component is denoted as t 1 The temperature of the second component is denoted as t 2 。
The control method of the heat exchange system of the electrical box specifically comprises the following steps:
s1: in the first n seconds of the starting operation of the air conditioner, the module current value is in an ascending state, and each element is in the ascending stateThe heat of the device is not great, the heat of the air absorption part in the electric box body 3 flows out through the air outlet grating 303, and gradually rises along with the temperature rise of each component, at the moment, t is detected 1 (n)＜T0，t 2 (n) < T0, wherein T0 is a target temperature value programmed to be 55-65deg.C. At this time, the conveying member 22 is in a stop state, and only the internal air of the electrical box body 3 is used for naturally radiating the components;
s2: after the air conditioner is started and operated for m seconds (m is more than or equal to n), the temperature rates of different components are different, and the upper limit temperature requirements are different, wherein T is 1 Indicating the upper limit temperature of the first component, T 2 Indicating the upper limit temperature of the second component, and detecting t after continuous t seconds, specifically, t can be set to be 10-20s 1 (m) T0 or T 2 (m) T0 or more, the conveyor 22 starts to rotate at a speed r 1 Run, r 1 Indicating that the transport 22 is at a low rotational speed, while judging |t 1 (m)-T 1 I and t 2 (m)-T 2 Magnitude of I, if t 1 (m)-T 1 |＞|t 2 (m)-T 2 The temperature of the second component reaches the upper limit temperature value more quickly, the second air inlet 301 communicated with the second component is opened, and the second air inlet 301 of the first component is closed; if |t 1 (m)-T 1 |＜|t 2 (m)-T 2 The first component is opened when the temperature of the first component reaches the upper limit temperature value more quickly, the second air inlet 301 of the first component is opened, the second air inlet 301 of the second component is closed, low-temperature air directly blows and dissipates heat of the first component or the second component independently through the opened air supply channel at a first speed, the temperature rise rate is restrained, meanwhile, the air in the electric box body 3 is driven to flow, and the heat of other heating components is taken away by the flowing air;
in step S2, the temperature of each component is not too high, so that only the second air inlet 301 of the first component or the second component is selectively opened.
S3: after the air conditioner is started and operated for k seconds (k is more than or equal to m is more than or equal to n), if continuous t seconds continue to pass, t is detected 1 (k) Not less than T1 or T 2 (k) Not less than T1, wherein T1 isThe target temperature value set by the program can be 65-75 ℃, and then the process shows that the conveying member 22 can not meet the heat dissipation of the existing components at a low rotating speed by opening one air duct, and the air supply quantity and the air speed are required to be increased when the temperature of the components is continuously increased. At this time, the conveyor 22 starts to rotate at the speed r 2 Run, r 2 The high rotation speed of the conveying member 22 is indicated, valves of all the second air inlets 301 are directly opened, low-temperature air directly blows and radiates the first components and the second components independently through the opened air supply channels at a second speed, and the first components and the second components are cooled and radiated so as to ensure that the temperature of each component does not reach an upper limit temperature value, and meanwhile, the heat of other heating components is taken away by flowing air, so that the normal operation of the whole machine is maintained;
s4: in the h seconds after the air conditioner is shut down, specifically, the h is 20-30, the conveying part 22 continuously operates to perform air cooling heat dissipation on the components, the temperature is gradually reduced along with no heating of the components, the heat dissipation requirement is canceled, the active heat dissipation mode is finished, the conveying part 22 is stopped, and the second air inlet is closed.
In this embodiment, the heat exchange system of the electrical box is combined with the control method, so that the air supply amount of the air supply pipe 6 can be controlled in real time according to the temperature of the components, and the self-adaptive effect is achieved.
An air conditioner comprises an electric box heat exchange system, wherein the electric box heat exchange system is the electric box heat exchange system.
It is worth noting that. In this embodiment, two ends of the air suction pipe 1 are respectively connected with the heat exchanger 5 and the compressor 4, no matter the air conditioner is in a heating state or a refrigerating state, the air suction pipe 1 always outputs a low-temperature low-pressure refrigerant, and the air conditioner realizes the mutual switching between the refrigerating and the heating through the reversing of the four-way valve.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (16)
1. An electrical box cooling device, comprising: the electric appliance box comprises an electric appliance box body (3), a collecting assembly (2) and a conveying piece (22);
the electric box body (3) is provided with a second air inlet (301), and the collecting assembly (2) is used for collecting cold energy released on the air suction pipe (1); the conveying part (22) conveys cold energy to the second air inlet (301) so as to radiate components in the electrical box body (3).
2. The electrical box cooling device according to claim 1, wherein the collecting assembly (2) is arranged on the air suction pipe (1), and air in the collecting assembly (2) exchanges heat with cold energy.
3. The electrical box cooling device according to claim 2, wherein the collecting assembly (2) comprises a heat exchanging member (212), the heat exchanging member (212) is in contact with the outer wall of the air suction pipe (1), and the heat exchanging member (212) is used for accelerating the cold and heat exchange between air and cold.
4. An electrical box cooling device according to claim 3, wherein the heat exchanging member (212) is a plurality of heat exchanging fins arranged at intervals in sequence, and the heat exchanging fins are annular.
5. The electrical box cooling device according to claim 4, wherein the collection assembly (2) further comprises a housing (211), the housing (211) being provided on the suction pipe (1), the heat exchange member (212) being located in the housing (211);
the shell (211) is provided with a first air inlet (201) and a first air outlet (202) so that air entering the shell (211) is discharged from the first air outlet (202) after being subjected to heat exchange and cooling with cold energy.
6. The electrical box cooling device according to claim 1, wherein the conveying member (22) is a fan, and the conveying member (22) blows the cooling capacity in the collecting assembly (2) to the second air inlet (301).
7. The electrical box cooling device according to claim 6, wherein the conveying member (22) conveys cold energy to the second air inlet (301) through an air supply pipe (6), the second air inlet (301) is provided with a valve, and an air inlet end of the conveying member (22) blows the cold energy in the collecting assembly (2) into the air supply pipe (6).
8. The electrical box cooling device according to claim 7, wherein the air inlet end of the conveying member (22) is provided with a filter screen (221).
9. The electrical box cooling device according to claim 1, wherein the electrical box body (3) comprises a box cover (302), and a plurality of air outlets are arranged on the box cover (302).
10. The electrical box cooling device according to claim 9, wherein the air outlet is an air outlet grille (303), and a plurality of the air outlets are arranged at the top of the box cover (302) at intervals.
11. The electrical box cooling device according to claim 6, wherein a main board (304) is arranged in the electrical box body (3), and the main board (304) opens the conveying member (22) according to the temperature of the components to convey cold to the second air inlet (301).
12. The electrical box cooling device according to claim 11, wherein a temperature sensor is provided on the component, and when the conveying member (22) is a fan, and the second air inlet (301) is provided with a valve, the main board (304) opens the valve and the conveying member (22) according to the temperature detected by the temperature sensor, so as to convey cold to the second air inlet (301).
13. A control method of an electrical box cooling device according to claim 1, wherein the conveying member (22) is turned off or the conveying member (22) is operated at a low frequency or the conveying member (22) is operated at a high frequency according to the temperature of the component.
14. The control method of the electrical box cooling device according to claim 13, wherein when the temperature sensor is provided on the component, the conveying member (22) is a fan, and the second air inlet (301) is provided with a valve,
the temperature of the components gradually rises within n seconds before the air conditioner is started and operated, the temperature sensor detects that the temperature of the components is lower than T0, the valve and the conveying part (22) are closed, and the internal air of the electric box body (3) naturally convects to dissipate heat of the components;
when the air conditioner is started and operated for m seconds, the temperature sensor detects that the temperature of the component exceeds T0 temperature within T seconds, the valve is opened, the conveying piece (22) operates at low frequency, and cold energy flows to the second air inlet (301) at a first speed;
when the air conditioner is started and operated for k seconds, the temperature sensor detects that the temperature of the component exceeds the temperature T1 within T seconds, the valve is opened, the conveying piece (22) operates at high frequency, and cold energy flows to the second air inlet (301) at a second speed;
wherein the second speed is greater than the first speed;
and opening the valve within h seconds after the air conditioner stops operating, continuing to operate the conveying part (22), and closing the valve and the conveying part (22) when the temperature of the components is gradually reduced.
15. A refrigeration system characterized by comprising a compressor (4), a heat exchanger (5) and the electrical box cooling device according to claim 1, wherein the compressor (4) is provided with an air suction pipe (1), and one end of the air suction pipe (1) far away from the compressor (4) is connected with the heat exchanger (5).
16. An air conditioner comprising a refrigeration system, wherein the refrigeration system is the refrigeration system of claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311644437.4A CN117553355A (en) | 2023-12-01 | 2023-12-01 | Electrical box cooling device, control method, refrigerating system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311644437.4A CN117553355A (en) | 2023-12-01 | 2023-12-01 | Electrical box cooling device, control method, refrigerating system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117553355A true CN117553355A (en) | 2024-02-13 |
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ID=89812602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311644437.4A Pending CN117553355A (en) | 2023-12-01 | 2023-12-01 | Electrical box cooling device, control method, refrigerating system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117553355A (en) |
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2023
- 2023-12-01 CN CN202311644437.4A patent/CN117553355A/en active Pending
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