CN110906440A - Cabinet air conditioner and control method thereof - Google Patents
Cabinet air conditioner and control method thereof Download PDFInfo
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- CN110906440A CN110906440A CN201811070106.3A CN201811070106A CN110906440A CN 110906440 A CN110906440 A CN 110906440A CN 201811070106 A CN201811070106 A CN 201811070106A CN 110906440 A CN110906440 A CN 110906440A
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- air
- air outlet
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- air conditioner
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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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
- F24F11/62—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
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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
- F24F11/70—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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to a cabinet air conditioner and a control method thereof. The invention aims to solve the problem that the existing air conditioner has large noise when the air supply quantity is large. For the purpose, the cabinet air conditioner comprises a shell, wherein an air feeder and a heat exchanger are arranged in the shell, the cabinet air conditioner also comprises an air supplementing device, the air supplementing device comprises an air inducing unit and a jet unit, the air inducing unit comprises a pipe body, the pipe body is provided with a first air inlet and a first air outlet, and an induced draft fan is arranged in the pipe body; the jet unit comprises a cylinder body, the cylinder body is provided with a second air inlet and a second air outlet, the second air inlet is connected with the first air outlet, and a jet channel is formed between the second air inlet and the second air outlet. By arranging the air supplement device, the invention can greatly reduce the noise generated when the cabinet air conditioner operates.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a cabinet air conditioner and a control method thereof.
Background
As air conditioners are widely used in thousands of households, users have higher and higher requirements on the use performance of the air conditioners. Taking a cabinet air conditioner as an example, generally, under the same condition, the performance of the cabinet air conditioner depends on the heat exchange efficiency, the heat exchange efficiency has a direct relation with the air supply amount, and the larger the air supply amount is, the higher the heat exchange efficiency is generally. In order to rapidly increase or decrease the indoor ambient temperature, a user usually adjusts the air speed of the air conditioner to a high value, so that the air conditioner operates at a high rotation speed and a high air volume.
Although the above control method can rapidly lower or raise the indoor ambient temperature, the following problems are also inevitably brought about by this method: because the performance of the air conditioner and the wind noise are a pair of irreconcilable contradictions, the scheme of increasing the air supply quantity to improve the cooling/heating effect ensures that the noise is increased while the air supply quantity is increased; however, if the noise reduction index is satisfied, the performance of the air conditioner is limited to some extent, and the user experience is greatly influenced. That is, the conventional air conditioner has a problem of loud noise when the amount of air blown is large.
Accordingly, there is a need in the art for a new cabinet air conditioner that addresses the above-mentioned problems.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problem of high noise of the conventional air conditioner when the air supply amount is large, the invention provides a cabinet air conditioner which comprises a shell, wherein an air feeder and a heat exchanger are arranged in the shell, the cabinet air conditioner also comprises an air supplementing device, the air supplementing device comprises an air inducing unit and a jet unit, the air inducing unit comprises a pipe body, the pipe body is provided with a first air inlet and a first air outlet, an induced draft fan is arranged in the pipe body, and the air inducing unit is arranged to be capable of inducing indoor air into the pipe body through the first air inlet and discharging the indoor air out of the pipe body through the first air outlet under the driving of the induced draft fan; the jet unit comprises a cylinder body, the cylinder body is provided with a second air inlet and a second air outlet, the second air inlet is connected with the first air outlet, a jet flow channel is formed between the second air inlet and the second air outlet, and the jet flow unit is arranged to allow air flow from the induced air unit to flow through the jet flow channel and then to be sprayed to the air inlet side of the heat exchanger through the second air outlet.
In the preferable technical scheme of the cabinet air conditioner, the cross section of the inner cavity of the cylinder body is annular, the first end of the annular inner cavity is closed, the second end of the annular inner cavity is provided with the second air outlet, and the outer side surface of the annular cylinder body is provided with the second air inlet.
In the above-mentioned preferred technical solution of the cabinet air conditioner, the cylinder is further provided with a flow guide surface at the second air outlet, so that the cross-sectional area of the second air outlet along the air outlet direction is gradually reduced.
In the preferable technical scheme of the cabinet air conditioner, a mounting frame is arranged in the pipe body, and the induced draft fan is fixed on the mounting frame.
In the preferable technical scheme of the cabinet air conditioner, the induced draft fan is a digital motor.
In the above preferred technical solution of the cabinet air conditioner, the jet unit further includes an opening and closing mechanism disposed at the second air outlet, and the opening and closing mechanism is configured to adjust an air outlet area of the second air outlet.
In the preferable technical scheme of the cabinet air conditioner, the opening and closing mechanism comprises a window type frame and blades, the window type frame is arranged right opposite to the second air outlet, and the blades can reciprocate along a set track in a plane where the blades are located.
In the preferable technical scheme of the cabinet air conditioner, the opening and closing mechanism further comprises a driving motor, and the driving motor is connected with the blades to drive the blades to move; and/or the area enclosed by the outer edge of the window type frame is larger than the area enclosed by the outer edge of the second air outlet.
In the preferable technical scheme of the cabinet air conditioner, the air supplementing device comprises two air inducing units and two jet flow units, and the cylinders of the two jet flow units are connected through a connecting plate; and/or the air supplement device is detachably arranged on the back of the shell.
The invention also provides a control method of the cabinet air conditioner in the preferable technical scheme, which comprises the following steps:
acquiring the wind speed of the cabinet air conditioner;
when the wind speed is greater than a wind speed threshold value, controlling the induced draft fan to operate;
and controlling the opening and closing mechanism to work while, before or after the draught fan operates so as to adjust the air outlet area of the second air outlet.
As can be understood by those skilled in the art, in a preferred technical solution of the present invention, a cabinet air conditioner includes a casing, a blower and a heat exchanger are disposed in the casing, the cabinet air conditioner further includes an air supplementing device, the air supplementing device includes an air inducing unit and a jet unit, the air inducing unit includes a pipe body, the pipe body has a first air inlet and a first air outlet, an induced draft fan is disposed in the pipe body, and the air inducing unit is configured to induce indoor air into the pipe body through the first air inlet and discharge the indoor air out of the pipe body through the first air outlet under the driving of the induced draft fan; the jet unit comprises a cylinder body, the cylinder body is provided with a second air inlet and a second air outlet, the second air inlet is connected with the first air outlet, a jet channel is formed between the second air inlet and the second air outlet, and the jet unit is arranged to allow air flow from the induced draft unit to flow through the jet channel and then to be sprayed to the air inlet side of the heat exchanger through the second air outlet.
By arranging the air supplementing device on the cabinet air conditioner, the invention can obviously reduce the noise of the cabinet air conditioner during the operation with large air volume. Specifically, the performance of the cabinet air conditioner depends on the heat exchange efficiency, the heat exchange efficiency is directly related to the air supply quantity, and the air supplementing device can directly send indoor air into the heat exchanger to participate in circulation, so that the working pressure of an air feeder in the cabinet air conditioner is reduced. Repeated tests, observations, analyses and comparisons of the inventor find that when a blower in the cabinet air conditioner and an induced draft fan in the air supplement device are started simultaneously, the cabinet air conditioner can run at a medium-low speed through the induced draft fan and the blower to share the air supply volume, so that on the premise of providing the same air supply volume, the noise generated when the blower in the cabinet air conditioner runs at a high speed independently is greatly reduced, and the running performance of the air conditioner is ensured to be unchanged or even improved. That is to say, the invention solves the problem of large noise when the air conditioner operates at large air volume in the prior art, has simple structure and obvious effect, and is suitable for large-scale popularization and use.
Drawings
The cabinet air conditioner and the control method thereof according to the present invention will be described with reference to the accompanying drawings in conjunction with a side-inlet cabinet air conditioner. In the drawings:
FIG. 1 is a front view of a packaged air conditioner of the present invention;
FIG. 2 is a rear view of the packaged air conditioner of the present invention;
FIG. 3 is a side cross-sectional view of the packaged air conditioner of the present invention;
FIG. 4 is a schematic structural diagram of the wind supplementing device of the present invention;
FIG. 5 is a schematic structural diagram of a digital motor according to the present invention;
FIG. 6 is a schematic structural diagram of the opening and closing mechanism of the present invention;
FIG. 7 is a schematic view of the working principle of the wind compensating device of the present invention;
FIG. 8 is a schematic view of the operation of the packaged air conditioner of the present invention;
fig. 9 is a flowchart illustrating a control method of a cabinet air conditioner according to the present invention.
List of reference numerals
1. A cabinet air conditioner; 11. a housing; 12. an air return opening; 13. an air supply outlet; 14. a blower; 15. a heat exchanger; 3. a wind supplementing device; 31. an air inducing unit; 311. a pipe body; 3111. a first air inlet; 312. an induced draft fan; 313. a mounting frame; 32. a fluidic unit; 321. a barrel; 3211. a second air outlet; 3212. a diversion bevel; 322. an opening and closing mechanism; 3221. a window frame; 3222. a blade; 323. a fluidic channel; 324. a cavity; 5. a connecting plate.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present invention is described in connection with a side-inlet cabinet air conditioner, this is not intended to be limiting and the teachings of the present invention are equally applicable to other types of cabinet air conditioners, such as front-inlet cabinet air conditioners, and the like, without departing from the spirit and scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring first to fig. 1 to 4, a cabinet air conditioner according to the present invention will be described. Wherein, fig. 1 is a front view of a cabinet air conditioner of the present invention; FIG. 2 is a rear view of the packaged air conditioner of the present invention; FIG. 3 is a side cross-sectional view of the packaged air conditioner of the present invention; fig. 4 is a schematic structural view of the air supplement device of the present invention.
In order to solve the problem of high air supply noise when the air supply quantity of the existing cabinet air conditioner is large, the invention provides a cabinet air conditioner with side air inlet (hereinafter, the cabinet air conditioner or the air conditioner is called for short) so as to increase the air guiding quantity while reducing the operation noise of the air conditioner, break through the impatience that the air supply quantity and the noise reduction of the traditional air conditioner can not be achieved at the same time and improve the use experience of users.
As shown in fig. 1 to 3, the side-inlet cabinet air conditioner 1 of the present invention mainly includes a casing 11 and an air supplement device 3 installed on the back of the casing 11, wherein the casing 11 is provided with an air return opening 12 and an air supply opening 13, the casing 11 is provided with an air blower 14 and a heat exchanger 15, and the air supplement device 3 mainly includes an air inducing unit 31 and a jet unit 32. Referring to fig. 3 and 4, the induced air unit 31 includes a tube 311, the tube 311 has a first air inlet 3111 and a first air outlet (not shown), an induced air fan 312 is disposed in the tube 311, and the induced air unit 31 is configured to introduce indoor air into the tube 311 through the first air inlet 3111 and discharge the tube 311 through the first air outlet under the driving of the induced air fan 312. The jet unit 32 includes a cylinder 321, the cylinder 321 has a second air inlet (not shown in the figure) and a second air outlet 3211, the second air inlet is connected to the first air outlet (i.e., the upper end of the pipe 311 is connected to the side of the cylinder 321 in fig. 4), a jet passage 323 is formed between the second air inlet and the second air outlet 3211, an opening and closing mechanism 322 capable of adjusting an air outlet area of the second air outlet 3211 is disposed at the second air outlet 3211, and the jet unit 32 is configured to allow the air from the induced air unit 31 to flow through the jet passage 323 and then be ejected to the air inlet side of the heat exchanger 15 through the second air outlet 3211.
Referring to fig. 7 and 8 in combination with fig. 1 to 4, fig. 7 is a schematic view of an operating principle of the wind supplement device of the present invention; fig. 8 is a schematic view illustrating the operation of the cabinet air conditioner according to the present invention. When the air conditioner needs large air volume to work, the blower 14 and the induced draft fan 312 work at medium and low speed at the same time, and a part of indoor air enters the machine shell 11 from the air return opening 12 on the side under the driving of the blower 14, passes through the heat exchanger 15 and then is sent into the room from the air supply opening 13; the other part of the indoor air is driven by the induced draft fan 312 to enter the pipe body 311 and the jet flow channel 323 from the first air inlet 3111, and then is ejected to the air inlet side of the heat exchanger 15 from the second air outlet 3211, and after converging with the air entering the air return port 12, the air passes through the heat exchanger 15 and enters the indoor space. In the process of ejecting the air from the second outlet 3211, the opening and closing mechanism 322 adjusts the air outlet area of the second outlet 3211, thereby adjusting the air output and the air supply speed of the air supply device 3.
As can be seen from the above description, the packaged air conditioner 1 of the present invention can greatly reduce the noise of the air conditioner when the blower 14 operates at a high speed alone, while ensuring that the air output is not changed, by simultaneously starting the induced draft fan 312 and the blower 14 and operating at a medium-low speed. That is, the air supply device solves the problem of high air supply noise when the air conditioner operates at a high air volume in the prior art, has a simple structure and an obvious effect, can increase the air volume without influencing the aesthetic property of the air conditioner, assists the air conditioner to refrigerate/heat, and is suitable for large-scale popularization and use. Further, the opening and closing mechanism 322 is arranged to adjust the air volume and the air speed of the air supply device 3 by adjusting the air outlet area of the second air outlet 3211, so that the air volume and the air outlet speed of the air supply device 3 are controllable, and the practicability and the user experience of the device are improved.
Referring next to fig. 4, the air compensating device 3 of the present invention will be described in detail. As shown in fig. 4, in one possible embodiment, the tube 311 is a substantially circular tube, and has a first inlet 3111 at a lower end and a first outlet at an upper end. The induced draft fan 312 is preferably a digital motor, a mounting frame 313 is arranged in the pipe body 311, and the digital motor is fixedly mounted on the mounting frame 313. The cross section of the cylinder 321 is annular, that is, the inner cavity of the cylinder 321 is annular. If the cylinder 321 is sequentially referred to as an inner wall inner side surface, an inner wall outer side surface, an outer wall inner side surface and an outer wall outer side surface from inside to outside along the radial direction, the annular inner cavity is defined by the inner wall outer side surface and the outer wall inner side surface. One end (the right end in fig. 4) of the annular inner cavity is sealed by an annular end face, the other end (the left end in fig. 4) forms an annular second air outlet 3211, a portion enclosed by the inner side face of the inner wall forms a cavity 324 with two communicated ends, the outer side face of the outer wall is provided with the second air inlet, the second air inlet is connected with the first air outlet, and the flow guide channel is formed between the second air inlet and the second air outlet 3211. In addition, at the second air outlet 3211, a flow guiding inclined plane 3212 is further disposed along the circumferential direction of the outer side surface of the outer wall, and the cross-sectional area of the flow guiding inclined plane 3212 along the air outlet direction is gradually reduced, that is, the second air outlet 3211 is gradually reduced.
Referring to fig. 5, fig. 5 is a schematic structural diagram of the digital motor of the present invention. It should be noted that the digital motor (or called digital motor) is a fan with high rotation speed and strong suction, and the maximum rotation speed is close to 11 ten thousand revolutions per minute, which is 4-5 times of the rotation speed of the common fan motor.
Referring now to fig. 6, fig. 6 is a schematic structural view of the opening and closing mechanism of the present invention. As shown in fig. 5, in a possible embodiment, the opening and closing mechanism 322 is similar to a shutter structure of a camera, and includes a window frame 3221, a plurality of blades 3222, and a driving motor (not shown in the figure) for driving the plurality of blades 3222 to move, the window frame 3221 forms an air outlet, the air outlet is disposed opposite to the second air outlet 3211, and the plurality of blades 3222 can reciprocate along a set track in a plane where the blades are located, so as to adjust an air outlet area of the second air outlet 3211. Preferably, the area enclosed by the air outlets of the window frame 3221 is greater than the area enclosed by the outer edge of the outer side surface of the outer wall of the second air outlet 3211.
Referring back to fig. 3, the air supplement device 3 of the present invention includes two air induction units 31 and two jet flow units 32, the two air induction units 31 and the two jet flow units 32 are symmetrically disposed on the back of the air conditioner, and the cylinders 321 of the two jet flow units 32 are fixedly connected through the connecting plate 5.
In the control mode, the air supplement device 3 can be controlled independently, for example, an electric control component (not shown in the figure) is configured inside the tube body 311 of the air supplement device 3, and the electric control component is controlled by a remote controller or by using a mobile phone APP or the like; or the air supply device 3 and the air conditioner can be controlled in a combined manner, for example, a button for controlling the air supply device 3 is reserved on an air conditioner remote controller in advance, and the air supply device 3 is controlled directly by the air conditioner remote controller or by connecting an electric control assembly to a reserved interface of the air conditioner.
The advantage of above-mentioned setting lies in: through the arrangement of the air supplement device 3, when the air conditioner operates, the induced draft fan 312 and the blower 14 operate together at a medium-low rotating speed instead of the single high-speed operation of the blower 14, so that the noise can be greatly reduced under the condition that the air supply quantity is not changed or even increased. Through repeated tests, observation, analysis and comparison of the inventor, the higher the rotating speed of the blower 14 is, the higher the noise is, and when the rotating speed is increased to be close to the maximum rotating speed, the noise is increased in a geometric grade due to the fact that air flow is accelerated and vibration is obviously increased. When the blower 14 and the induced draft fan 312 operate at the medium and low speed simultaneously, the induced draft fan 312 can share the air supply for the blower 14, so that on the premise of providing the same air supply, the noise generated when the blower 14 in the air conditioner operates at the high speed is greatly reduced, and the operating performance of the air conditioner is ensured to be unchanged or even improved. The setting of the opening and closing mechanism 322 can adjust the air volume and the air speed of the air supply device 3 by adjusting the air outlet area of the second air outlet 3211, so that the air volume and the air speed of the air supply device 3 are controllable, and the structure setting mode similar to a shutter makes the structure of the opening and closing mechanism 322 simple and stable, the shutter can be closed when the air supply device 3 does not work, and the condition that the operation effect of the air conditioner is influenced by the backflow leakage of the air flow in the air conditioner from the second air outlet 3211 can be prevented.
Further, referring to fig. 7 and 8, the flow guiding inclined surface 3212 at the second end of the annular cylinder 321 is effectively combined with the digital motor, so as to fully utilize the venturi effect, when a strong airflow sucked by the digital motor is emitted from the jet flow channel 323, due to the action of the flow guiding inclined surface 3212 at the second air outlet 3211, the airflow is instantly increased, the air pressure is decreased, the airflow rapidly flows to generate a negative pressure near the second air outlet 3211, at this time, the airflow in the cavity 324 and the airflow outside the cylinder 321 generate a flow, the airflow in the cavity 324 passes through the cavity 324 and the window frame 3221, the airflow outside the cylinder 321 passes through the circular gap between the window frame 3221 and the second air outlet 3211 when the blade 3222 is fully opened (refer to dashed arrows in fig. 7 and 8), after the two airflows merge together, the airflow is multiplied in flow, so as to be able to keep the rotation speed of the digital motor and the blower 14 unchanged, the air volume is further increased, or on the premise of ensuring that the air volume is not changed, the rotating speeds of the digital motor and the air feeder 14 can be further reduced, and the noise is further reduced.
In addition, the air supplement device 3 is arranged on the back of the casing 11, namely outside the casing 11 of the air conditioner, so that the air supplement device 3 can be sold independently, a user does not need to spend higher cost to buy a new low-noise air conditioner, but only spend lower purchase cost and transformation cost to install the air supplement device 3 on the air conditioner, the application scene of the air supplement device is greatly expanded, and the air supplement device is suitable for large-scale popularization and use.
It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can adjust the above arrangement mode so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.
For example, in an alternative embodiment, the shapes of the tube 311 and the cylinder 321, and the number of the air inducing units 31 and the jet units 32 may be adjusted, as long as the adjustment can achieve the function of the air supplement device 3. For example, the cross section of the tube body 311 may be a rectangular tube or a tube with other shapes, the cylinder 321 may also be in a ring shape such as an outer circle and an inner square, an outer circle and an inner circle, and even the cylinder 321 is not configured in a ring shape and only has a whole cavity. For another example, the air supply device 3 may be provided with only one air inducing unit 31 and one jet unit 32.
For another example, in another alternative embodiment, the flow guide surface at the second outlet 3211 may be in other arrangement forms as long as the arrangement form can gradually reduce the cross-sectional area of the second outlet 3211 along the air outlet direction. For example, the flow guide surface may also be a curved surface, or a combination of an inclined surface and a curved surface, and the flow guide surface may be circumferentially disposed around the second air outlet 3211, or may be intermittently disposed along the circumferential direction of the second air outlet 3211. Even, the second air outlet 3211 may not have a diversion inclined plane 3212, and the air is driven by a digital motor to flow, so that the jet effect can still be achieved.
For another example, in another alternative embodiment, the form of the opening and closing mechanism 322, the number of the blades 3222, and the like may be adjusted, as long as the opening and closing mechanism 322 can adjust the air outlet area of the second air outlet 3211. For example, the opening and closing mechanism 322 may be a hinge type, a curtain type, etc., and the number of the blades 3222 may be 1 to 10, etc.
For another example, in another alternative embodiment, the induced draft fan 312 may also be replaced by a common axial flow fan or a centrifugal fan instead of a digital motor, and the jet function of the present invention may also be implemented.
Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario. For example, it is possible to combine a new embodiment by reducing the number of the draft unit 31 and the jet unit 32 to one on the basis of the preferred embodiment and replacing the digital motor with an axial flow fan.
Referring to fig. 9, a method for controlling the cabinet air conditioner according to the present invention will be explained. Fig. 9 is a flowchart illustrating a control method of a packaged air conditioner according to the present invention.
As shown in fig. 9, the control method of the packaged air conditioner 1 of the present invention mainly includes the following steps:
s100, acquiring the wind speed of the cabinet air conditioner 1, for example, acquiring the wind speed from a set parameter when a user selects the operating wind speed of the air conditioner, or automatically acquiring the current operating wind speed when the wind speed of the air conditioner is set to be an automatic wind speed;
and S200, when the wind speed is greater than the wind speed threshold, controlling the induced draft fan 312 to operate, for example, the wind speed threshold is a high-speed gear in the operating wind speed, or the wind speed corresponding to the high rotating speed of the blower 14 during the independent operation, and when the wind speed is greater than the wind speed threshold, the control module of the air conditioner controls the induced draft fan 312 and the blower 14 to simultaneously start and operate at the medium and low speed so as to reduce the noise generated by the air conditioner.
S300, while the induced draft fan 312 operates, the opening and closing mechanism 322 is controlled to operate, and when the induced draft fan 312 operates, the blade 3222 of the opening and closing mechanism 322 is controlled to be opened to the maximum state, so as to adjust the air outlet area of the second air outlet 3211 to the maximum. Of course, the timing of controlling the opening/closing mechanism 322 may be performed before or after the induced draft fan 312 is turned on, in addition to the simultaneous control with the induced draft fan 312.
By the control method of the cabinet air conditioner 1, the automatic control of the air supplementing device 3 can be realized, a user can conveniently select a proper running state, the running noise of the air conditioner is reduced, and the user experience is improved.
A possible operation of the air conditioner of the present invention will be described with reference to fig. 7 to 8 in conjunction with fig. 1 to 4.
As shown in fig. 7 to 8, when the user turns on the air conditioner and selects the operation with the smaller air supply amount, the blower 14 is operated alone, the blade 3222 of the opening and closing mechanism 322 is in the closed state, and the air supply device 3 is not operated. When the user adjusts the air supply amount to a large air amount, the blower 14 continues to operate, and the air supply device 3 starts to operate: when the digital motor is started, the blades 3222 are opened to the maximum, the rotation speed of the digital motor and the blower 14 are both kept at a medium-low speed, at this time, a part of indoor air enters the air conditioner through the return air inlet 12, is discharged through the air supply outlet 13 after passing through the heat exchanger 15, and the other part of indoor air enters the air supplement device 3 through the first air inlet 3111, and is ejected from the second air outlet 3211 to join with the air flow entering through the return air inlet 12 after sequentially passing through the pipe body 311 and the jet flow channel 323. While the second air outlet 3211 emits an air flow, the air in the cavity 324 and the air around the cylinder 321 are merged with the air flow emitted from the jet flow channel 323 under the suction effect of the negative pressure, and are emitted from the window frame 3221 together.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A cabinet air conditioner comprises a casing, a blower and a heat exchanger are arranged in the casing, and is characterized by also comprising an air supplementing device, the air supplementing device comprises an induced air unit and a jet unit,
the induced air unit comprises a pipe body, the pipe body is provided with a first air inlet and a first air outlet, an induced draft fan is arranged in the pipe body, and the induced air unit is arranged to be capable of introducing indoor air into the pipe body through the first air inlet and discharging the indoor air out of the pipe body through the first air outlet under the driving of the induced draft fan;
the jet unit comprises a cylinder body, the cylinder body is provided with a second air inlet and a second air outlet, the second air inlet is connected with the first air outlet, a jet flow channel is formed between the second air inlet and the second air outlet, and the jet flow unit is arranged to allow air flow from the induced air unit to flow through the jet flow channel and then to be sprayed to the air inlet side of the heat exchanger through the second air outlet.
2. The cabinet air-conditioner according to claim 1, wherein the cross section of the inner cavity of the cylinder is annular, the first end of the annular inner cavity is closed, the second end of the annular inner cavity is provided with the second air outlet, and the outer side surface of the annular cylinder is provided with the second air inlet.
3. The cabinet air-conditioner according to claim 2, wherein the cylinder is further provided with a flow guide surface at the second air outlet, so that the cross-sectional area of the second air outlet along the air outlet direction is gradually reduced.
4. The cabinet air-conditioner according to claim 1, wherein a mounting frame is provided in the tube, and the induced draft fan is fixed to the mounting frame.
5. The cabinet air-conditioner according to claim 1, wherein the induced draft fan is a digital motor.
6. The cabinet air-conditioner according to any one of claims 1 to 5, wherein the jet unit further comprises an opening and closing mechanism disposed at the second air outlet, and the opening and closing mechanism is configured to adjust an air outlet area of the second air outlet.
7. The cabinet air-conditioner according to claim 6, wherein the opening and closing mechanism comprises a window frame and a blade, the window frame is disposed opposite to the second air outlet, and the blade can reciprocate along a set track in a plane in which the blade is disposed.
8. The cabinet air-conditioner according to claim 7, wherein the opening and closing mechanism further comprises a driving motor connected to the vane to drive the vane to move; and/or
The area enclosed by the outer edge of the window type frame is larger than the area enclosed by the outer edge of the second air outlet.
9. The cabinet air-conditioner according to claim 6, wherein the air supplement device comprises two air induction units and two jet flow units, and the cylinders of the two jet flow units are connected through a connecting plate; and/or
The air supplementing device is detachably arranged on the back of the shell.
10. A control method of a packaged air conditioner according to any one of claims 6 to 9, wherein the control method comprises:
acquiring the wind speed of the cabinet air conditioner;
when the wind speed is greater than a wind speed threshold value, controlling the induced draft fan to operate;
and controlling the opening and closing mechanism to work while, before or after the draught fan operates so as to adjust the air outlet area of the second air outlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070106.3A CN110906440A (en) | 2018-09-13 | 2018-09-13 | Cabinet air conditioner and control method thereof |
| PCT/CN2019/105405 WO2020052596A1 (en) | 2018-09-13 | 2019-09-11 | Cabinet air conditioner and method for controlling same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070106.3A CN110906440A (en) | 2018-09-13 | 2018-09-13 | Cabinet air conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110906440A true CN110906440A (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811070106.3A Pending CN110906440A (en) | 2018-09-13 | 2018-09-13 | Cabinet air conditioner and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110906440A (en) |
| WO (1) | WO2020052596A1 (en) |
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| CN105091278A (en) * | 2015-09-07 | 2015-11-25 | 珠海格力电器股份有限公司 | Air supply system and cabinet type air conditioner |
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| WO2020052596A1 (en) | 2020-03-19 |
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