CN115325621A - Electrical apparatus box and air conditioner - Google Patents
Electrical apparatus box and air conditioner Download PDFInfo
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- CN115325621A CN115325621A CN202210964066.7A CN202210964066A CN115325621A CN 115325621 A CN115325621 A CN 115325621A CN 202210964066 A CN202210964066 A CN 202210964066A CN 115325621 A CN115325621 A CN 115325621A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000007423 decrease Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 49
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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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
- F24F1/22—Arrangement or mounting thereof
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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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- 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
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an electric appliance box and an air conditioner, comprising: separate into the casing of first cavity and second cavity, install the heating element and parts in first cavity, set up and be in second cavity upper portion and intercommunication the first fan subassembly of first cavity sets up first cavity lower part and intercommunication the second fan subassembly of first cavity detects the temperature sensor group of temperature in the electrical apparatus box, the controller of the temperature signal control first fan subassembly and second fan subassembly running state according to temperature sensor group. According to the invention, the electrical appliance box is divided into two cavities, the two fan assemblies are arranged to equalize the temperature of the electrical appliance box when needed, and the operating state of the centrifugal fan assembly or the working condition of the air conditioner external unit is controlled in real time by monitoring the temperature in the electrical appliance box, so that the heat dissipation efficiency of the electrical appliance box is improved, the temperature in the electrical appliance box is controllable, and the condition that the temperature in the electrical appliance box is abnormal or the operating condition of the centrifugal fan assembly is unmatched is avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an electric appliance box and an air conditioner.
Background
The heat dissipation of the air-conditioning electrical components is always a difficult point in the industry, and because the air-conditioning electrical components generate heat during operation, the service life of the electrical components is short, the operation efficiency is reduced, and even the electrical components are burnt out due to too high temperature. The electric control box is used as a control center of the unit, the reliability problem directly influences the normal use of the unit, the temperature rise of the electric appliance box is always a difficult problem in the industry, in the prior art, a windowing heat dissipation channel and the like have obvious heat dissipation effects, but under the installation environment of a commercial air conditioner, hidden dangers such as water inlet and dust inlet exist in the windowing heat dissipation reliability aspect of the electric appliance box; if not windowing, the inside temperature rise of automatically controlled box will become abominable, and inside temperature can't the effluvium, and inside air can't flow, forms the heat accumulation, and then leads to components and parts overheat life to reduce even high temperature burns out. And the temperature in the electrical apparatus box can not be controlled according to actual conditions, and the radiating efficiency is low.
Disclosure of Invention
The invention provides an electric appliance box and an air conditioner, aiming at solving the technical problem that the temperature in the electric appliance box is uncontrollable in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides an electrical box, comprising: the temperature sensor group detects the temperature in the electrical appliance box, and the controller adjusts the fan assembly and/or the air conditioner running state according to the temperature signal of the temperature sensor group.
Specifically, the temperature sensor group includes: the temperature sensor comprises a first temperature sensor for detecting the temperature of the first cavity, a second temperature sensor for detecting the temperature of the second cavity, and a third temperature sensor for detecting the temperature of each heating element.
Specifically, the fan subassembly includes: the fan assembly comprises a first fan assembly arranged at the upper part of the second cavity and communicated with the first cavity, and a second fan assembly arranged at the lower part of the first cavity and communicated with the second cavity.
When the temperature that first temperature sensor detected is less than or equal to first preset temperature, the controller control first fan subassembly and second fan subassembly are out of work, when the temperature that first temperature sensor detected is greater than first preset temperature, the controller control second fan subassembly is opened.
When the temperature detected by the first temperature sensor is higher than a second preset temperature, the controller controls the first fan assembly and the second fan assembly to be started.
When the temperature detected by the first temperature sensor is higher than a second preset temperature and the temperature of each third temperature sensor is higher than a first rated heat-resisting temperature, the controller controls the first fan assembly and the second fan assembly to be started to a preset maximum rotating speed.
And when the temperature detected by the first temperature sensor is higher than a second preset temperature and the temperature of each second temperature sensor is higher than a second rated heat-resisting temperature, the controller reduces the operating frequency of the air-conditioning compressor.
And when the temperatures detected by the first temperature sensor and the second temperature sensor are both higher than a third preset temperature and are maintained for a preset time, the controller controls an external unit of the air conditioner to stop.
Furthermore, the second cavity is provided with a heat dissipation assembly, one part of the heat dissipation assembly is arranged in the second cavity, and the other part of the heat dissipation assembly is arranged outside the shell.
Preferably, the fans of the first fan assembly and the second fan assembly are centrifugal fans.
The invention also provides an air conditioner which comprises the electrical box.
Compared with the prior art, the electric appliance box is divided into two cavities, the two fan assemblies are arranged to homogenize the temperature of the electric appliance box when needed, the operating state of the centrifugal fan assembly or the working condition of an air conditioner external unit is controlled in real time by monitoring the temperature in the electric appliance box, so that the heat dissipation efficiency of the electric appliance box is improved, the temperature in the electric appliance box is controllable, and the condition that the temperature in the electric appliance box is abnormal or the operating condition of the centrifugal fan assembly is not matched is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description 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 for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic perspective view of an opened electrical appliance box cover according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the second chamber of the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first cavity in an embodiment of the invention;
FIG. 5 is a schematic diagram of an internal circulation in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a heat dissipation assembly according to an embodiment of the present invention;
FIG. 7 is a schematic view of a heat dissipation assembly according to another embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a hidden housing back plate according to another embodiment of the present invention;
fig. 9 is a schematic view illustrating an outdoor unit according to the present invention;
1. a housing; 11. a partition plate; 111. a first cavity; 112. a second cavity;
2. a heat dissipating component; 21. a first fixing plate; 22. a second fixing plate; 23. a first fin; 24. a second fin; 231. a through hole; 25. a heat conductive member; 26. a refrigerant pipe;
3. an electric appliance box cover; 4. a heat generating element; 5. a second fan assembly; 6. a first fan assembly; 7. an outdoor unit; 8. an outdoor fan;
91. a first temperature sensor; 92. a second temperature sensor; 93. a third temperature sensor.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
The existing electric appliance box is in a fully-closed form, and the existing electric appliance box is in a form of arranging a heat dissipation window, wherein the form of arranging the heat dissipation window is beneficial to heat dissipation of the electric appliance box, but hidden dangers exist in the aspect of reliability under the installation environment of a commercial air conditioner, for example, the problems of humidity, mosquitoes, mice and the like may exist. This problem can effectively be solved to the electrical apparatus box of totally enclosed form, but has the inside temperature rise of automatically controlled box again and will become abominable, because inside temperature can't the effluvium, inside air can't flow in addition, forms the heat gathering, and then leads to the components and parts overheat life in the electrical apparatus box to reduce even high temperature burns out. In contrast, the internal circulation air duct is arranged in the electrical box to homogenize the internal temperature, the heat exchanger is arranged on the internal circulation air duct, the internal temperature of the electrical box is rapidly distributed, and meanwhile, the working states of the two fan assemblies are controlled in real time according to the temperature, so that the temperature of electronic components in the electrical box is controlled in a controllable range.
As shown in fig. 1, 3, 4, and 5, the present invention provides an electrical box, which mainly includes: casing 1, first fan subassembly 6, second fan subassembly 5 and radiator unit 2, temperature sensor group and controller of electrical apparatus box, the space in the casing passes through the baffle and separates into two adjacent cavitys, first cavity and second cavity promptly, installs various heating element 4 in the first cavity, installs radiator unit 2 in the second cavity. The upper portion and the lower part of baffle are opened (or have the installation opening) respectively, thereby through setting up the fan subassembly in the position of opening, can separate the air of two parts of formation with casing 1 and carry out the inner loop, thereby form the circulation wind channel, first fan subassembly 6 sets up in first cavity and second cavity upper portion intercommunication department, second fan subassembly 5 sets up in the lower part intercommunication department of first cavity and second cavity, temperature sensor group sets up in the casing, can the temperature situation in the real-time detection electrical apparatus box, the controller is according to the temperature signal control first fan subassembly of temperature sensor group and second fan subassembly running state, the radiating efficiency of electrical apparatus box is improved, and energy saving.
One part of the heat dissipation assembly 2 is arranged on the internal circulation air duct to absorb heat, the other part of the heat dissipation assembly 2 is arranged outside the shell 1 to transfer heat outside the shell to dissipate heat, and high temperature accumulated inside the electrical box (namely the shell) can be dissipated. The heat dissipation structure provided by the invention can not only be used for homogenizing the internal temperature of the electrical box and preventing the overheating life reduction and even high-temperature burnout of heating components due to overhigh temperature of local areas in the electrical box, but also be used for dissipating heat in the shell through the heat dissipation assembly, thereby improving the heat dissipation efficiency.
In the above embodiment, the casing is a fully sealed casing, in other embodiments, the casing may also be a casing with a heat dissipation window, the fan assembly is arranged in the casing to form an air duct, a part of the heat dissipation assembly is arranged in the air duct, and the other part of the heat dissipation assembly is arranged outside the casing, so that heat in the casing can be quickly led out, and the heat dissipation efficiency is improved.
As shown in fig. 3, 4 and 5, the temperature sensor group specifically includes: a first temperature sensor 91 for detecting the temperature T1 in the first cavity, a second temperature sensor 92 for detecting the temperature T2 in the second cavity, and a third temperature sensor 93 for detecting the temperature T3 of each heating element. In a preferred embodiment, the first temperature sensor 91 may be disposed in the middle of the first cavity 111, and the second temperature sensor 92 may be disposed in the middle of the second cavity 112, so that the temperatures measured by the first and second sensors are closer to the actual conditions in the cavities.
The controller controls the actual conditions of the first fan assembly and the second fan assembly according to the preset temperatures, wherein the first preset temperature is lower than the second preset temperature. The first rated heatproof temperature is less than the second rated heatproof temperature.
When the temperature detected by the first temperature sensor is less than or equal to a first preset temperature, the controller controls the first fan assembly and the second fan assembly to be out of work. At the moment, the temperature of the first cavity is lower, which shows that the heat productivity of the electronic components is not large, and the influence on the electronic components is small, so that the fan assembly is directly closed to reduce the energy consumption.
When the temperature detected by the first temperature sensor is higher than a first preset temperature, the controller controls the second fan assembly to be started, the second fan is a centrifugal fan located at the bottom, and hot air in the first cavity can be accelerated to rise when the second fan assembly is started.
When the temperature detected by the first temperature sensor is higher than the second preset temperature, the controller controls the first fan assembly and the second fan assembly to be started, so that the air in the first cavity and the air in the second cavity are subjected to internal circulation, the temperature in the electric appliance box is uniform, and the heat exchange with the heat exchange assembly is accelerated.
When the temperature detected by the first temperature sensor is higher than the second preset temperature and the temperature detected by each third temperature sensor is higher than the first rated heat-resisting temperature, the controller adjusts the first fan assembly and the second fan assembly to the preset highest rotating speed, so that the abnormality caused by too high temperature of the electronic components is avoided.
When the temperature detected by the first temperature sensor is higher than a second preset temperature and the temperature of each second temperature sensor is higher than the second rated heat-resistant temperature of the heating element, the controller reduces the operating frequency of the air-conditioning compressor. At this moment, the first fan assembly and the second fan assembly are adjusted to the preset highest rotating speed, but the temperature is still high, the power for operating the electronic components is too high, if the power is not reduced, parts can be damaged, and therefore the operating frequency of the air conditioner compressor is directly reduced, namely the operating condition is reduced to reduce the temperature.
And when the first temperature sensor and the second temperature sensor are both higher than a third preset temperature and maintain for a preset time, the controller controls an external unit of the air conditioner to stop and reports a fault. At this time, a short circuit or other abnormal conditions of components may occur, and the continuous operation of the air conditioner may cause a significant loss, so that the external unit of the air conditioner is directly turned off to be checked and confirmed.
The following is a control manner of the specific embodiment of the present invention, and it should be noted that the preset temperature and the preset time are not limited to the following specific values, and can be set according to actual needs, specifically as follows:
when T1 is less than 40 ℃, the first centrifugal fan and the second centrifugal fan (namely the fans of the first fan assembly and the second fan assembly) are not started;
when T1 is higher than 40 ℃, starting a second centrifugal fan;
when T1 is higher than 50 ℃, starting a first centrifugal fan and a second centrifugal fan;
when T1 is higher than 50 ℃ and the temperature T3 of each heating component is higher than 80% of the rated heat-resistant temperature of the component (for example, the rated heat-resistant temperature is 90 ℃, and the rated heat-resistant temperature of 80% of the component is 72 ℃); the first centrifugal fan and the second centrifugal fan are started to rotate at the highest speed;
when T1 is higher than 50 ℃, the temperature T3 of each heating component is higher than 95% of the rated heat-resistant temperature of the component, and the operation frequency of an air conditioner outdoor unit (namely the operation frequency of a compressor) is limited;
and when the T1 and the T2 are simultaneously greater than 70 degrees, if the time is more than 30min, the air conditioner outdoor unit is stopped emergently and reports the fault.
In a specific embodiment, as shown in fig. 1 to 5, the front of the casing is provided with an electrical appliance box cover 3 (also called a case cover), the electrical appliance box cover 3 can be opened, a partition plate 11 is arranged inside the casing 1, the partition plate 11 is parallel to the state when the electrical appliance box cover 3 is covered, the space inside the electrical appliance box is divided into a first cavity 111 and a second cavity 112 by the partition plate 11, the first cavity 111 is close to one side of the electrical appliance box cover 3, and is used for installing a heating component 4, the heating component 4 or a mainboard thereof can be directly installed on the partition plate 11 (or directly installed on the heat dissipation component 2), the heat dissipation component 2 is installed in the second cavity 112, the heat dissipation component 2 corresponds to the position of the heating component 4, so that the heat of the heating component 4 can be directly conducted to the heat dissipation component 2 through a contact conduction mode. The upper communicating part and the lower communicating part of the first cavity 111 and the second cavity 112 are both provided with fan components, and the air in the first cavity and the second cavity is circulated by the driving of the fan components to even the temperature in the electrical appliance box.
Specifically, a first fan assembly 6 is arranged at the communication position of the upper parts of the first cavity 111 and the second cavity 112, and the first fan assembly 6 sucks air from the first cavity and blows the air out of the second cavity; first cavity 111 sets up second fan subassembly 5 with second cavity 112's lower part intercommunication department, second fan subassembly 5 blows off from first cavity 111 from the air of inhaling in second cavity 112, make the air in first cavity 111 from up flowing down, the air of second cavity 112 from up down flowing, because the hot-air principle, the air that the temperature is high is by down up-going, the continuous flow to first cavity top of components and parts heat that generates heat, through second fan subassembly, can avoid the hot-air gathering at the top of electrical apparatus box, the air in the electrical apparatus box constantly circulates.
Preferably, the first fan assembly 6 and the second fan assembly 5 are centrifugal fans, and the centrifugal fans blow air out in all directions simultaneously, so that the uniformity of air circulation can be further improved, the temperature in the shell is uniform, and local overheating is avoided.
In the first embodiment, as shown in fig. 6, the heat dissipation assembly 2 specifically includes: the fixing structure comprises a first fixing plate 21, a second fixing plate 22, a plurality of first fins 23 and second fins 24, wherein the first fixing plate and the second fixing plate are arranged at intervals and in parallel, the first fins are vertically arranged between the first fixing plate and the second fixing plate at intervals, and a plurality of second fins are arranged at intervals on the outer side of the second fixing plate. Therefore, the heat dissipation assembly is divided into two layers through the first fixing plate and the second fixing plate, the first fins between the first fixing plate and the second fixing plate form a first layer of micro-channel heat dissipation structure, and the second fins outside the second fixing plate form a second layer of micro-channel heat dissipation structure. The fins are spaced from each other to form microchannels for airflow to pass through.
Specifically, a plurality of through holes 231 are further formed in the first fin 23 between the first fixing plate 21 and the second fixing plate 22, so that the heat exchange efficiency is improved.
In the second embodiment, the heat dissipation assembly 2 specifically includes: the fin fixing structure comprises a first fixing plate 21, a second fixing plate 22 and a plurality of fins, wherein the first fixing plate and the second fixing plate are arranged at intervals and in parallel, the fins are vertically arranged on the first fixing plate at intervals, penetrate through the second fixing plate and are fixed with the second fixing plate, a plurality of strip-shaped holes for the fins to penetrate through can be preset in the second fixing plate, and the fins are connected with the second fixing plate in a sealing mode. Therefore, the heat dissipation assembly is divided into two layers through the first fixing plate and the second fixing plate, the fins between the first fixing plate and the second fixing plate form a first layer of heat dissipation structure, and the fins outside the second fixing plate form a second layer of heat dissipation structure. The fins are spaced from each other to form microchannels through which the gas flows.
Specifically, the fin between first fixed plate and the second fixed plate still is equipped with a plurality of through-holes, improves heat exchange efficiency.
During the installation, the back of casing 1 corresponds radiator unit 2's mounted position and reserves the opening (open-ended area can equal the area of first fixed plate 21 or be greater than the area of first fixed plate 21), and the area of first fixed plate 21 can slightly be less than the area of second fixed plate 22, make first fixed plate 21 stretch into from the opening, with baffle 11 fixed connection, second fixed plate 22 just covers the opening simultaneously, second fixed plate 22 is fixed with the back of casing 1, make first fixed plate 21 and first fin 23 be located second cavity 112 and absorb heat, second fin 24 is located the outside of casing 1, can dispel the heat through the air current through the casing outside, thereby distribute out the heat in the casing through the fin conduction.
In a third embodiment, as shown in fig. 7, the heat dissipation assembly specifically includes: the heat-conducting plate comprises a first fixing plate 21, a second fixing plate 22, a first fin 23, a second fin 24, a heat-conducting piece 25 and a refrigerant pipe 26, wherein the first fixing plate 21 and the second fixing plate 22 are arranged in parallel at intervals, the first fin 23 is vertically arranged between the first fixing plate and the second fixing plate at intervals, and the second fixing plate is provided with the second fin 24. Therefore, the heat dissipation assembly 2 is divided into two layers by the first fixing plate 21 and the second fixing plate 22, the fins between the first fixing plate 21 and the second fixing plate 22 form a first layer of micro-channel heat dissipation structure, and the fins outside the second fixing plate form a second layer of micro-channel heat dissipation structure. The fins are spaced from each other to form microchannels for airflow to pass through. The heat conducting piece 25 is installed between the first fixing plate 21 and the second fixing plate 22, and two parallel pipe holes are formed in the heat conducting piece 25, so that the U-shaped refrigerant pipe 26 can penetrate through the pipe holes to be in contact connection with the heat conducting piece 25, heat exchange is carried out through the addition of the refrigerant pipe, and the heat exchange efficiency is improved.
As shown in fig. 8, the refrigerant pipe can simultaneously pass through the heat conducting members 25 of the plurality of heat dissipation assemblies, that is, the plurality of heat dissipation assemblies are simultaneously cooled, so that the heat exchange efficiency is further improved.
In order to further improve the installation effect, during installation, an opening (the area of the opening may be equal to or larger than the area of the first fixing plate) is reserved at the back of the casing 1 corresponding to the installation position of the heat dissipation assembly 2, a second opening is also reserved at the position of the partition plate 11 where the heating component 4 is installed, the area of the second opening is smaller than the area of the first fixing plate 21, and the area of the first fixing plate 21 may be slightly smaller than the area of the second fixing plate 22. First fixed plate 21 can stretch into in the opening, with baffle 11 fixed connection, and cover the second opening on the baffle 11, second fixed plate 22 just covers the opening simultaneously, second fixed plate 22 is fixed with the back of casing 1 (fixed position can set up the sealing washer, sealed glue etc. prevents gas leakage), heating element 4 direct mount is on first fixed plate 21, it is fixed specifically to paste through the hot melt adhesive, make heat direct conduction to first fixed plate 21, on the fin is conducted again, and first fin 23 between first fixed plate 21 and the second fixed plate 22 also is located second cavity 112 and absorbs heat, the fin outside second fixed plate 22 is located the outside of casing 1, can dispel the heat through the air current through the casing outside, thereby distribute out the heat in the casing through the fin conduction.
The invention further provides an air conditioner which comprises the electric appliance box.
The air conditioner can be a multi-split air conditioner, and the outdoor unit of the air conditioner is a fan system for ejecting air, so that heat on the second layer of micro-channel heat dissipation structure and the second fins can be quickly dissipated through the outside.
As shown in fig. 9, the air conditioner specifically includes an outdoor unit 7, an outdoor fan 8 is disposed in the outdoor unit 7, a heat dissipation air duct can be formed in the outdoor unit 7, and the casing 1 is disposed on the heat dissipation air duct, so that the fins of the heat dissipation assembly 2 located outside the casing are located on the heat dissipation air duct, which facilitates heat dissipation of the fins, and further improves heat dissipation efficiency of the electrical box.
It is noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electrical box comprising: separate the casing that forms first cavity and second cavity, install the heating element device in first cavity, its characterized in that still includes: the fan assembly is arranged in the shell and communicated with the first cavity and the second cavity to form a circulating air duct, the temperature sensor group is used for detecting the temperature in the electric appliance box, and the controller is used for adjusting the fan assembly and/or the air conditioner running state according to the temperature signal of the temperature sensor group.
2. The appliance cartridge of claim 1, wherein the set of temperature sensors comprises: the temperature sensor comprises a first temperature sensor for detecting the temperature of the first cavity, a second temperature sensor for detecting the temperature of the second cavity, and a third temperature sensor for detecting the temperature of each heating element.
3. The appliance cartridge of claim 2, wherein the fan assembly comprises: the fan assembly comprises a first fan assembly arranged at the upper part of the second cavity and communicated with the first cavity, and a second fan assembly arranged at the lower part of the first cavity and communicated with the second cavity.
4. The appliance box of claim 3, wherein the controller controls the first fan assembly and the second fan assembly to be not operated when the temperature detected by the first temperature sensor is less than or equal to a first preset temperature, and controls the second fan assembly to be operated when the temperature detected by the first temperature sensor is greater than the first preset temperature.
5. The appliance box of claim 3, wherein the controller controls the first and second fan assemblies to turn on when the temperature sensed by the first temperature sensor is greater than a second preset temperature.
6. The appliance box of claim 3, wherein the controller controls the first and second fan assemblies to turn on to a predetermined maximum speed when the temperature sensed by the first temperature sensor is greater than a second predetermined temperature and the temperature of each of the third temperature sensors is greater than a first rated heatproof temperature.
7. The electrical box according to claim 3, wherein the controller decreases the operating frequency of the air conditioner compressor when the temperature detected by the first temperature sensor is greater than a second preset temperature and the temperature of each of the second temperature sensors is greater than a second rated heatproof temperature.
8. The electrical box of claim 3, wherein the controller controls an external unit of an air conditioner to be stopped when the temperatures detected by the first and second temperature sensors are both greater than a third preset temperature for a preset time.
9. The appliance box of claim 1, wherein the second cavity is provided with a heat sink assembly, a portion of the heat sink assembly being disposed within the second cavity and another portion of the heat sink assembly being disposed outside the housing.
10. An air conditioner characterized by comprising the electric box according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210964066.7A CN115325621A (en) | 2022-08-11 | 2022-08-11 | Electrical apparatus box and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210964066.7A CN115325621A (en) | 2022-08-11 | 2022-08-11 | Electrical apparatus box and air conditioner |
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| CN115325621A true CN115325621A (en) | 2022-11-11 |
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| CN202210964066.7A Pending CN115325621A (en) | 2022-08-11 | 2022-08-11 | Electrical apparatus box and air conditioner |
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