CN109405096B - Air conditioner outdoor unit and control method thereof - Google Patents
Air conditioner outdoor unit and control method thereof Download PDFInfo
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- CN109405096B CN109405096B CN201811080808.XA CN201811080808A CN109405096B CN 109405096 B CN109405096 B CN 109405096B CN 201811080808 A CN201811080808 A CN 201811080808A CN 109405096 B CN109405096 B CN 109405096B
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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
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/77—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 by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The embodiment of the invention discloses an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The air conditioner outdoor unit comprises a middle partition plate, an electric control box and a fan, wherein the electric control box is arranged on one side, close to the fan, of the middle partition plate. In the embodiment of the invention, the electric control box is arranged on one side of the middle partition plate close to the fan, so that the electric control box is far away from the leakage point of the combustible refrigerant in the refrigerating system, and in addition, the electric control box and the leakage point are separated by the middle partition plate, so that the combustible refrigerant is not easy to enter the electric control box after being leaked. The embodiment of the invention also discloses a control method of the air conditioner outdoor unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit and a control method thereof.
Background
Refrigerant is also called refrigerant, which is a working medium of a refrigeration cycle, transfers heat by utilizing the phase change of the refrigerant, i.e. the refrigerant absorbs heat when vaporized in an evaporator and releases heat when condensed in a condenser, and currently, more than 80 substances which can be used as the refrigerant are commonly used, such as R410A, R32, R22 and R290.
With the increasingly worsening of the global atmospheric environment, new environmental-friendly refrigerants gradually become the key point for the development of the air conditioner industry. The novel environment-friendly refrigerant has the characteristics of stability, no toxicity, excellent performance and the like, R290 is taken as one member of the environment-friendly refrigerant and is called as a refrigerant substitute with great potential, and the R290 refrigerant is gradually used for replacing the existing refrigerants such as R22, R410A and the like which have destructive influence on the atmosphere. However, since R290 and the like have flammable and explosive characteristics, their application to a household air conditioner requires sufficient consideration for safety.
An outdoor unit of an air conditioner in the prior art generally includes a unit body and an electronic control box installed in the unit body, wherein the unit body includes a box body, a compressor, a heat exchanger, a fan configured for the heat exchanger, and a related piping structure, the compressor, the heat exchanger, the fan configured for the heat exchanger, and the related piping structure are accommodated in the box body, the electronic control box is supported in the box body of the unit body through a middle partition plate, an electrical control component for driving the compressor, the fan, and the like is installed in the electronic control box, and a radiator for radiating heat of the electrical control.
The air conditioner in the unit body is separated into two parts by the middle partition plate, the compressor is positioned on one side of the middle partition plate, and the fan and the heat exchanger are positioned on the other side of the middle partition plate.
According to the existing installation structure of the electric control box, combustible refrigerant leaked from a compressor refrigerating system easily enters the electric control box from a seam of the electric control box, so that electronic components in the electric control box are ignited to cause explosion hidden troubles.
Disclosure of Invention
The embodiment of the invention provides an air conditioner outdoor unit and a control method thereof, and aims to solve the problem that combustible refrigerant is easy to enter an electric control box after leaking in the prior art. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the embodiments of the present invention, an outdoor unit of an air conditioner is provided, where the outdoor unit of the air conditioner includes a middle partition plate, an electronic control box, and a fan, and the electronic control box is installed on a side of the middle partition plate, which is close to the fan.
In some optional embodiments, the outdoor unit further includes a first refrigerant leakage detection device disposed inside the electronic control box.
In some optional embodiments, the outdoor unit further includes a second refrigerant leakage detecting device disposed on a side of the middle partition plate adjacent to the compressor.
In some optional embodiments, the electronic control box comprises a first side plate, and the electronic control box is connected with the middle partition plate through the first side plate.
In some optional embodiments, the first side plate is provided with a first opening;
the middle partition plate is provided with a window corresponding to the first opening, the window comprises a cover plate, and the cover plate is arranged on one side, close to the compressor, of the window and can be rotatably opened or closed.
In some optional embodiments, a wire passing hole is formed in a central position of the cover plate, and the wire passing hole is circular, rectangular, rhombic, or elliptical.
In some optional embodiments, the line passing hole is sleeved with a protective ring, and the shape and the size of the protective ring are matched with those of the line passing hole.
In some optional embodiments, the electrical control box further comprises a second side panel, and the second side panel is provided with a second opening.
According to a second aspect of the embodiments of the present invention, there is provided a control method of an outdoor unit of an air conditioner, the control method including:
when the concentration of the refrigerant detected by the second refrigerant leakage detection device is greater than or equal to a first set value, opening a window and controlling the fan to operate at a first speed;
when the refrigerant concentration detected by the first refrigerant leakage detection device and the refrigerant concentration detected by the second refrigerant leakage detection device are both smaller than or equal to a second set value, closing the window and controlling the fan to stop running;
wherein the first set value is greater than the second set value.
In some optional embodiments, the method further comprises: when the refrigerant concentration detected by the second refrigerant leakage detection device is greater than a second set value and less than a first set value, controlling the fan to operate at a second speed;
wherein the first speed is greater than the second speed.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, the electric control box is arranged on one side of the middle partition plate close to the fan, so that the electric control box is far away from a leakage point of the combustible refrigerant in the refrigeration system, and the combustible refrigerant is not easy to enter the electric control box after being leaked. In addition, the electric control box and the leakage point are separated by the middle partition plate, so that the combustible refrigerant is not easy to enter the electric control box after being leaked.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view illustrating an internal structure of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 2 is a partially enlarged view of an outdoor unit of an air conditioner according to an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating the overall construction of an electrical control pod, according to one exemplary embodiment;
FIG. 4 is a schematic diagram illustrating the internal structure of an electrical control pod in accordance with an exemplary embodiment;
fig. 5 is a schematic structural view illustrating another view angle of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 6 is a schematic structural view illustrating another view angle of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 7 is a flowchart illustrating a method of controlling an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 8 is a flowchart illustrating a method of controlling an outdoor unit of an air conditioner according to another exemplary embodiment;
description of the drawings:
1. an air conditioner outdoor unit; 11. a middle partition plate; 111. a window; 112. a cover plate; 113. the circuit passes through the hole; 12. a fan; 13. an electronic control box; 131. a first side plate; 1311. a first opening; 132. a second side plate; 1321. a second opening; 133. a top cover; 14. a compressor; 15. a first refrigerant leakage detection device; 16. a second refrigerant leakage detection device; 17. an electronic component.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or structure from another entity or structure without requiring or implying any actual such relationship or order between such entities or structures. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
According to a first aspect of the embodiments of the present invention, there is provided an outdoor unit of an air conditioner, and fig. 1 is a schematic view illustrating an internal structure of an outdoor unit of an air conditioner according to an exemplary embodiment, as shown in fig. 1, the outdoor unit 1 of an air conditioner includes a middle partition 11, an electronic control box 13, and a fan 12, and the electronic control box 13 is installed on a side of the middle partition 11 close to the fan 12.
In the embodiment of the invention, the electric control box 13 is arranged on one side of the middle partition plate 11 close to the fan 12, so that the electric control box 13 is far away from a leakage point of the combustible refrigerant in the refrigeration system, and in addition, the electric control box 13 is separated from the leakage point through the middle partition plate 11, so that the combustible refrigerant is not easy to enter the electric control box 13 after leaking.
The electric control box 13 is fixedly connected with the middle partition plate 11, and the electric control box 13 can be fixed on the middle partition plate 11 by screws, so that the fixing stability of the electric control box 13 is ensured.
In some optional embodiments, the outdoor unit of the air conditioner further includes a compressor 14, and the compressor 14 and the electronic control box 13 are respectively located at both sides of the middle partition plate 11.
Fig. 2 is a partially enlarged view of an outdoor unit of an air conditioner according to an exemplary embodiment, and as shown in fig. 2, an electronic component 17 is installed inside the electric control box 13.
In some alternative embodiments, fig. 3 is a schematic diagram illustrating an overall structure of an electronic control box according to an exemplary embodiment, as shown in fig. 3, the electronic control box 13 includes a first side plate 131, and the electronic control box 13 is connected to the middle partition 11 through the first side plate 131.
In some alternative embodiments, the first side plate 131 and the middle partition plate 11 may be fixedly connected by screws, or may be fixed by bonding, where the bonding is performed by using an adhesive, and the material of the first side plate 131 and the middle partition plate 11 is selected according to a corresponding adhesive, such as epoxy glue, polyurethane glue, or a two-liquid mixed hardened glue.
In some alternative embodiments, the first side plate 131 is provided with a first opening 1311;
a window 111 is provided at a position of the middle partition 11 corresponding to the first opening 1311, and the window 111 includes a cover plate 112, and the cover plate 112 is provided at one side of the window 111 to rotatably open or close the window 111.
In some alternative embodiments, the cover plate 112 is disposed on the bottom side of the window 111, when the angle of the cover plate 112 is greater than or equal to 90 °, the cover plate 112 makes the window 111 in the fully opened state, and when the rotation angle of the cover plate 112 is greater than 0 ° and less than 90 °, the window 111 is in the partially opened state.
The cover plate 112 is arranged on the window 111, and the first opening 1311 is arranged on the first side plate 131, so that the two sides of the middle partition plate 11 can realize the circulation of gas through the window 111, when refrigerant leakage occurs, the leaked refrigerant enters the electric control box 13 by passing through the window 111, the leaked refrigerant is treated by the fan 12, and the refrigerant is prevented from accumulating in the air conditioner outdoor unit 1 and causing danger.
In some alternative embodiments, the area of the window 111 is larger than the area of the first opening 1311, and the shape is consistent, so that after the cover plate 112 is opened, the refrigerant can diffuse into the interior of the electrical control box 13 through the first opening 1311 in time.
In some optional embodiments, a wire through hole 113 is formed in a central position of the cover plate 112, and the wire through hole 113 is circular, rectangular, diamond-shaped, or oval, although other shapes may be selected to ensure that a wire can pass through the wire through hole 113.
The electric wires of the air conditioner outdoor unit 1 pass through the wire passing holes 113, so that the electric wires of the air conditioner outdoor unit 1 can be conveniently and uniformly arranged, and the arrangement of the wires is more tidy.
In some optional embodiments, a protection ring adapted to the shape of the wire passing hole 113 may be sleeved around the wire passing hole, and the protection ring may be made of rubber to protect the wire and prevent the protection layer of the wire from being damaged due to the action of a sharp corner.
In some alternative embodiments, the shape and size of the protective collar is adapted to the shape and size of the line pass through hole 113 so that the protective collar does not fall off.
In some alternative embodiments, the positions of the window 111 and the first opening 1311 may also be interchanged, that is, the window 111 is disposed on the first side plate 1131, and the first opening 1311 is disposed on the middle partition 11, wherein the position of the cover plate 112 may be disposed on the middle partition 11 or disposed on the first side plate 1131.
In some alternative embodiments, the electronic control box 13 further includes a second side plate 132, and the second side plate 132 is provided with a second opening 1321.
In some alternative embodiments, the shape of the second opening 1321 is rectangular or circular, although other shapes are possible, the shape of the second opening 1321 is identical to the shape of the first opening 1311, and the line connecting the center of the second opening 1321 and the center of the first opening 1311 is horizontal to maximize the diffusion efficiency of the refrigerant.
In alternative embodiments, where the second opening 1321 is circular in shape, it has a radius R, and the first opening 1311 is also circular in shape, having a radius R, where 2.5R ≦ R ≦ 3R +5, in millimeters.
Wherein, by designing R to be 2.5R ≦ R ≦ 3R +5, the diameter of the first opening 1311 may be smaller than the diameter of the second opening 1321, so as to avoid the refrigerant from accumulating too much inside the electronic control box 13 and being unable to be discharged by the fan 12.
In some alternative embodiments, when the second opening 1321 is rectangular, it has a length a and a width B, and the first opening 1311 is also rectangular, and has a length a and a width B, wherein 2.5a ≦ 3a +5,2.5B ≦ 3B +5, and B/a ≦ B/a, wherein the units are millimeters.
The arrangement mode avoids that the refrigerant is excessively accumulated in the electric control box 13 and cannot be discharged through the fan 12.
By providing the second opening 1321, the refrigerant entering the interior of the electrical control box 13 can enter the vicinity of the fan 12 through the second opening 1321, so that the air conditioner outdoor unit 1 is blown out by the fan 12, and the refrigerant is prevented from accumulating in the interior of the air conditioner outdoor unit 1.
In some optional embodiments, the outdoor unit 1 further includes a first refrigerant leakage detecting device 15, and the first refrigerant leakage detecting device 15 is disposed inside the electronic control box 13.
The first refrigerant leakage detection device 15 is arranged in the electronic control box 13, so that the concentration of the refrigerant in the electronic control box 13 can be detected.
In some optional embodiments, the outdoor unit 1 further includes a second refrigerant leakage detecting device 16, where the second refrigerant leakage detecting device 16 is disposed on a side of the middle partition plate 11 close to the compressor 14, and is configured to detect a concentration of the refrigerant in a space where the compressor 14 is located.
According to a second aspect of the embodiments of the present invention, there is provided a method for controlling an outdoor unit 1, where the outdoor unit 1 is the outdoor unit 1, and fig. 7 is a flowchart illustrating a method for controlling an outdoor unit according to an exemplary embodiment, and as shown in fig. 7, the method for controlling the outdoor unit 1 includes:
s701, when the concentration of the refrigerant detected by the second refrigerant leakage detection device 16 is greater than or equal to a first set value, opening a window 111, and controlling the fan 12 to operate at a first speed;
and S702, when the refrigerant concentration detected by the first refrigerant leakage detection device 15 and the refrigerant concentration detected by the second refrigerant leakage detection device 16 are both less than or equal to a second set value, closing the window 111 and controlling the fan 12 to stop operating.
In some alternative embodiments, the first set point is greater than the second set point.
When the concentration of the refrigerant detected by the second refrigerant leakage detecting device 16 is greater than or equal to the first set value, the window 111 is opened, and the fan 12 is controlled to operate at the first speed, wherein the leaked refrigerant can enter the interior of the electronic control box 13 by opening the window 111, and the leaked refrigerant can be quickly discharged by the fan 12 by controlling the fan 12 to operate at the first speed, so that the danger caused by the leaked refrigerant accumulating in the interior of the air conditioner outdoor unit 1 is avoided.
When the refrigerant concentration on the two sides of the middle partition plate 11 is less than or equal to the second set value, the window 111 is closed, the fan 12 is controlled to stop running, the fan 12 is prevented from being in a fast running state all the time, and the energy waste is reduced.
In some optional embodiments, the control method of the outdoor unit 1 further includes:
s703, when the refrigerant concentration detected by the second refrigerant leakage detecting device 16 is less than the first set value and greater than a second set value, controlling the fan 12 to operate at a second speed, where the second speed is less than the first speed.
When the refrigerant leakage is not serious, the fan 12 is controlled to operate at the second speed, namely, the slow speed, so that the waste of energy is avoided.
In some optional embodiments, the control method of the outdoor unit 1 further includes: the operation state of the outdoor unit of the air conditioner is determined, and if the operation state is the stop mode, the operation proceeds to S701 directly, and if the operation state is the operation mode, the operation is performed according to the flow in fig. 8.
In some alternative embodiments, when the air conditioner is in the operation mode, fig. 8 is a flowchart illustrating a control method of an outdoor unit of the air conditioner according to another exemplary embodiment, and as shown in fig. 8, the control method of the outdoor unit of the air conditioner includes:
s801, when the refrigerant concentration detected by the second refrigerant leakage detecting device 16 is greater than the second set value, the air conditioner stops operating and enters a protection mode.
S802, when the concentration of the refrigerant detected by the second refrigerant leakage detection device 16 is greater than or equal to a first set value, opening the window 111, and controlling the fan 12 to operate at a first speed;
and S803, when the refrigerant concentration detected by the first refrigerant leakage detection device 15 and the refrigerant concentration detected by the second refrigerant leakage detection device 16 are both less than or equal to a second set value, closing the window 111 and controlling the fan 12 to stop operating.
In some optional embodiments, the control method of the outdoor unit 1 further includes:
s804, when the refrigerant concentration detected by the second refrigerant leakage detecting device 16 is less than the first set value and greater than a second set value, the fan 12 is controlled to operate at a second speed, where the second speed is less than the first speed.
In some alternative embodiments, the first set point may be a range of values or a specific value.
In some alternative embodiments, the refrigerant R290, which is primarily high purity propane, is a hydrocarbon that can be burned or even exploded under certain conditions, considering that the upper explosion limit of propane gas is 9.5% (V/V) (volume concentration percentage) and the lower explosion limit is 2.1% (V/V), and therefore, the first set value is less than 2.1% (V/V) for safety.
In some alternative embodiments, when the first set point is a range value, the selection range may be 0.9% -2.0%.
In some alternative embodiments, when the first set point is a range value, the selection range may be 1.2% -1.8%.
In some alternative embodiments, the first set point may be 1.0% when the first set point is a specific value.
In some alternative embodiments, the first set point may be 1.5% when the first set point is a specific value.
In some alternative embodiments, where the second set point is a range value, the selected range may be 0% -0.5%.
In some alternative embodiments, where the second set point is a range value, the selected range may be 0% -0.4%.
In some alternative embodiments, the second set point may be 0.05% when the second set point is a specific value.
In some alternative embodiments, the first speed may be a specific value or may be a range value.
In some alternative embodiments, where the first speed is a range value, the selection range may be 600 and 950 rpm.
In some alternative embodiments, where the first speed is a specific value, the selected range may be 800 rpm.
In some alternative embodiments, the second speed may be a specific value or may be a range value.
In some alternative embodiments, where the second speed is a range value, the selection range may be 300-500 rpm.
In some alternative embodiments, where the second speed is a specific value, the selected range may be 350 revolutions per minute.
The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. An outdoor unit of an air conditioner comprises a middle partition plate, an electric control box and a fan, and is characterized in that the electric control box is arranged on one side, close to the fan, of the middle partition plate;
wherein the electronic control box comprises a first side plate; a first opening is formed in the first side plate; the middle partition plate is provided with a window at a position corresponding to the first opening, and the window comprises a cover plate.
2. The outdoor unit of claim 1, further comprising a first refrigerant leakage detecting device disposed inside the electric control box.
3. The outdoor unit of claim 2, further comprising a second refrigerant leakage detecting device disposed at a side of the middle partition plate adjacent to the compressor.
4. The outdoor unit of claim 3, wherein the electric control box is connected to the middle partition plate by the first side plate.
5. The outdoor unit of claim 4, wherein,
the cover plate is arranged on one side, close to the compressor, of the window and can rotatably open or close the window.
6. The outdoor unit of claim 5, wherein a line passing hole is formed at a center of the cover plate, and the line passing hole has a circular, rectangular, diamond, or oval shape.
7. An outdoor unit of an air conditioner according to claim 6, wherein a protective ring is fitted over the line passing holes and has a shape and size adapted to those of the line passing holes.
8. The outdoor unit of any one of claims 1 to 7, wherein the electric control box further comprises a second side plate, and the second side plate is provided with a second opening.
9. An outdoor unit of an air conditioner according to any one of claims 5 to 7, comprising:
when the concentration of the refrigerant detected by the second refrigerant leakage detection device is greater than or equal to a first set value, opening a window and controlling the fan to operate at a first speed;
when the refrigerant concentration detected by the first refrigerant leakage detection device and the refrigerant concentration detected by the second refrigerant leakage detection device are both smaller than or equal to a second set value, closing the window and controlling the fan to stop running;
wherein the first set value is greater than the second set value.
10. The outdoor unit of an air conditioner of claim 9, wherein the method further comprises: when the refrigerant concentration detected by the second refrigerant leakage detection device is greater than a second set value and less than a first set value, controlling the fan to operate at a second speed;
wherein the first speed is greater than the second speed.
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| CN201811080808.XA CN109405096B (en) | 2018-09-17 | 2018-09-17 | Air conditioner outdoor unit and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109959082B (en) * | 2019-04-15 | 2023-10-24 | 广东美的制冷设备有限公司 | Air conditioning device and electric control box assembly |
| CN109974137B (en) * | 2019-04-19 | 2024-05-17 | 青岛海尔智能技术研发有限公司 | Air conditioner outdoor unit and air conditioner |
| JP2020180770A (en) * | 2019-04-26 | 2020-11-05 | 東芝キヤリア株式会社 | Indoor unit of air conditioner |
| CN110779155A (en) * | 2019-11-12 | 2020-02-11 | 珠海格力电器股份有限公司 | Control method and device of air conditioner |
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Effective date of registration: 20210301 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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