CN112984638A - Indoor cabinet air conditioner and control method of indoor cabinet air conditioner - Google Patents

Indoor cabinet air conditioner and control method of indoor cabinet air conditioner Download PDF

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Publication number
CN112984638A
CN112984638A CN202110145872.7A CN202110145872A CN112984638A CN 112984638 A CN112984638 A CN 112984638A CN 202110145872 A CN202110145872 A CN 202110145872A CN 112984638 A CN112984638 A CN 112984638A
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CN
China
Prior art keywords
fan
air
controlling
air outlet
air conditioner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110145872.7A
Other languages
Chinese (zh)
Inventor
潘文驰
辛涛
郝本华
王宪强
成汝振
李国行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202110145872.7A priority Critical patent/CN112984638A/en
Publication of CN112984638A publication Critical patent/CN112984638A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
    • F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
    • 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
    • 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
    • F24F11/67—Switching between heating and cooling modes
    • 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
    • F24F2110/10—Temperature
    • 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

Abstract

The invention relates to the technical field of air conditioners and provides an indoor cabinet air conditioner and a control method of the indoor cabinet air conditioner. The indoor cabinet air conditioner comprises a shell, a heat exchanger, a PTC heater, a fan and a temperature sensor, wherein a first air channel and a second air channel are arranged in the shell, and the heat exchanger and the PTC heater are respectively arranged in the first air channel and the second air channel; the casing is provided with a first air outlet and a second air outlet which are respectively communicated with the first air channel and the second air channel, the second air outlet is positioned below the first air outlet and close to the bottom of the casing, the fan is used for sending out air flowing through the second air channel from the second air outlet, and the temperature sensor is respectively in communication connection with the PTC heater and the fan and used for sensing the indoor environment temperature. The indoor cabinet air conditioner provided by the invention meets the heating requirement of the lower indoor space, and can meet various requirements of users by controlling the opening and closing of the PTC heater and the fan and the rotating speed of the fan according to the indoor environment temperature.

Description

Indoor cabinet air conditioner and control method of indoor cabinet air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an indoor cabinet air conditioner and a control method of the indoor cabinet air conditioner.
Background
The evaporimeter of present cabinet-type air conditioner indoor has the take the altitude apart from ground generally, and when winter indoor adoption air conditioner heated, the hot-air after the air conditioner heat transfer can toward the come-up, leads to the temperature of lower part air lower, and indoor whole high space is in the state of upper heat cold down, makes old man's shank and children often be in the middle of the lower environment of temperature, and user experience feels poor.
Disclosure of Invention
The invention provides an indoor cabinet air conditioner and a control method of the indoor cabinet air conditioner, which are used for solving the problems that when the indoor cabinet air conditioner in the prior art is used in winter, the indoor low space temperature is low, and the user experience is poor.
The invention provides an indoor cabinet air conditioner, which comprises a shell, a heat exchanger, a PTC heater, a fan and a temperature sensor, wherein a first air channel and a second air channel are arranged in the shell;
the air conditioner comprises a shell, a first air outlet and a second air outlet, wherein the shell is provided with the first air outlet and the second air outlet which are communicated with the first air channel and the second air channel respectively, the second air outlet is located below the first air outlet and close to the bottom of the shell, a fan is used for sending air flowing through the second air channel out of the second air outlet, a temperature sensor is in communication connection with a PTC heater and the fan respectively, and the temperature sensor is used for sensing the indoor environment temperature of the cabinet air conditioner.
The cabinet air conditioner indoor unit further comprises a shell, the shell is detachably mounted in the shell, the second air duct is formed in the shell, an air inlet and an air outlet which are communicated with the second air duct are formed in the shell, and the air outlet is opposite to the second air outlet.
According to the indoor cabinet air conditioner provided by the invention, the shell is internally provided with the rotating mechanism, the shell is arranged on the rotating mechanism, and the rotating mechanism is used for driving the shell to rotate so as to enable the air outlet to horizontally move within the range of the second air outlet.
According to the indoor cabinet air conditioner provided by the invention, the second air outlet is provided with the air outlet decorative plate, the air outlet decorative plate is slidably arranged on the machine shell, and the air outlet decorative plate has two states of opening and closing the second air outlet.
The invention also provides a control method of the indoor cabinet air conditioner, which comprises the following steps:
acquiring a first control instruction sent by a user;
controlling a working mode corresponding to the operation of the heat exchanger according to the first control instruction, wherein the working mode comprises a heating mode and a refrigerating mode;
and controlling the opening and closing of the PTC heater and the fan and adjusting the rotating speed of the fan according to the working mode.
According to the control method of the indoor cabinet air conditioner provided by the invention, if the working mode is a heating mode, the control of the opening and closing of the PTC heater and the fan and the rotation speed of the fan according to the working mode comprises the following steps:
controlling the PTC heater and the fan to be started;
acquiring a second control instruction sent by a user, and determining the heating capacity of the PTC heater according to the second control instruction;
and controlling the rotating speed of the fan according to the heating quantity.
According to the control method of the indoor cabinet air conditioner provided by the invention, if the working mode is a heating mode, the control of the opening and closing of the PTC heater and the fan and the rotation speed of the fan according to the working mode comprises the following steps:
controlling the PTC heater and the fan to be started;
and acquiring the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature.
According to the control method of the indoor cabinet air conditioner provided by the invention, the control of the rotating speed of the fan according to the heating quantity specifically comprises the following steps:
when the indoor environment temperature is lower than a first temperature threshold value, controlling the rotating speed of the fan to be a first rotating speed;
when the indoor environment temperature is not less than a first temperature threshold and less than a second temperature threshold, controlling the rotating speed of the fan to be a second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
According to the control method of the indoor cabinet air conditioner provided by the invention, if the working mode is a refrigeration mode, the control of the opening and closing of the PTC heater and the fan and the rotating speed of the fan according to the working mode comprises the following steps:
controlling the PTC heater to be closed and the fan to be started;
and acquiring the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature.
According to the control method of the indoor cabinet air conditioner provided by the invention, the control of the rotating speed of the fan according to the indoor environment temperature specifically comprises the following steps:
if the indoor environment temperature is not less than a third temperature threshold and less than a fourth temperature threshold, controlling the rotating speed of the fan to be a third rotating speed;
if the indoor environment temperature is not less than a fourth temperature threshold value, controlling the rotating speed of the fan to be a fourth rotating speed;
wherein the third rotational speed is less than the fourth rotational speed.
According to the indoor cabinet air conditioner and the control method of the indoor cabinet air conditioner, the PTC heater and the second air outlet are arranged below the indoor cabinet, so that hot air heated by the PTC heater is blown out from the second air outlet, and the heating requirement of the lower indoor space is met; in addition, through being used for sensing the temperature sensor and PTC heater and the fan communication connection of indoor ambient temperature, can satisfy user's many-sided demand according to opening and closing and the rotational speed of fan of indoor ambient temperature control PTC heater and fan, promoted user experience and felt.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an indoor cabinet air conditioner provided by the invention;
FIG. 2 is a schematic structural diagram of a fan heater in a cabinet air conditioner provided by the invention;
FIG. 3 is a bottom view of a fan heater in a cabinet air conditioner provided by the present invention;
FIG. 4 is a front view of a portion of an indoor unit of an air conditioner according to the present invention;
fig. 5 is a flowchart of a control method of an indoor cabinet air conditioner provided by the present invention;
reference numerals:
1. a housing; 11. A first air outlet; 12. A second air outlet;
13. a first air inlet; 14. A second air inlet; 15. An air outlet decoration plate;
151. an air outlet; 2. A warm air blower; 21. A housing;
211. a second air duct; 212. An air inlet; 213. An air outlet;
214. profiling the side wall; 215. A planar sidewall; 22. A PTC heater;
23. a second fan; 201. A volute housing; 202. An outer housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a cabinet air conditioner, as shown in fig. 1, which is a schematic structural diagram of the cabinet air conditioner provided by the invention, the cabinet air conditioner comprises a casing 1, a heat exchanger, a PTC heater 22, a fan and a temperature sensor, wherein a first air duct and a second air duct 211 are arranged in the casing 1, the heat exchanger is arranged in the first air duct, and the PTC heater 22 is arranged in the second air duct. The heat exchanger is used for heating or cooling air flowing through the first air duct. The PTC (positive Temperature coefficient) heater is an electric heater with high heat exchange efficiency, and the PTC heater 22 is used to heat air flowing through the second air duct 211. The heating capacity of the PTC heater is in proportional relation with the air volume, namely the heating capacity of the PTC heater is increased along with the increase of the passing air speed.
The casing is provided with a first air outlet 11 and a second air outlet 12 which are respectively communicated with the first air duct and the second air duct 211, the second air outlet 12 is positioned below the first air outlet 11 and close to the bottom of the casing 1, and the fan is used for sending out air flowing through the second air duct 211 from the second air outlet 12. The main heat exchange system of the cabinet air conditioner indoor unit is formed by combining the heat exchanger, a fan used for sending air flowing through the first air duct out of the first air outlet and other related accessories. The PTC heater 22 and the fan and other related accessories are combined to form a fan heater 2 for outputting warm air from the lower portion of the cabinet air conditioner. The temperature sensor is respectively in communication connection with the PTC heater 22 and the fan, and the temperature sensor is used for sensing the indoor environment temperature of the cabinet air conditioner. The temperature sensor can directly adopt a temperature sensor on the coil pipe of the indoor unit; or a separately arranged temperature sensor, which can be installed in the main heat exchange system or on the fan heater 2.
In the embodiment of the present invention, the heat exchanger and the PTC heater 22 may be operated independently, and may be turned on simultaneously or independently as needed. For example, when the heat exchanger turns on the heating mode, the PTC heater 22 is turned on at the same time. Part of indoor air is heated by the heat exchanger and then blown out from the first air outlet 11, and the other part of indoor air is heated by the PTC heater 22 and then blown out from the second air outlet 12, so that hot air is blown out from the lower part of the cabinet machine.
The cabinet air conditioner indoor unit provided by this embodiment can adjust the working mode of the warm air blower 2 by controlling the opening and closing of the PTC heater 22 and the blower, and meet different functional requirements of the user on the air outlet at the lower part of the air conditioner. For example, when the indoor temperature is lower than the set threshold, the PTC heater 22 and the fan are controlled to be turned on simultaneously, so that the fan heater 2 operates in the heating mode to assist heating; when the indoor temperature is not lower than the set threshold, the PTC heater 22 is controlled to be closed and the fan is controlled to be opened, so that the warm air blower 2 works in an air supply mode to improve the indoor air circulation.
Wherein, under the heat exchanger mode of heating, when temperature sensor sensing indoor temperature reaches the threshold value scope of settlement, the accessible is adjusted the rotational speed of fan and is adjusted the heating volume of PTC heater 22, satisfies the heating demand that is used for the different intensity in indoor lower part space. Under the heat exchanger refrigeration mode or the closed state, the air supply quantity of the fan heater 2 can be adjusted by adjusting the rotating speed of the fan, and the indoor air circulation strength is adjusted.
According to the indoor cabinet air conditioner provided by the invention, the PTC heater and the second air outlet are arranged below the indoor cabinet air conditioner, so that hot air heated by the PTC heater is blown out from the second air outlet, and the heating requirement of the lower indoor space is met; in addition, through being used for sensing the temperature sensor and PTC heater and the fan communication connection of indoor ambient temperature, can satisfy user's many-sided demand according to opening and closing and the rotational speed of fan of indoor ambient temperature control PTC heater and fan, promoted user experience and felt.
The indoor cabinet air conditioner provided by the embodiment of the invention comprises two fans which are a first fan and a second fan 23 respectively. Specifically, a first fan is installed in the casing 1 and is used for blowing out air after heat exchange of the first air duct inner diameter heat exchanger from the first air outlet 11. The second fan 23 is a fan for sending out the air flowing through the second air duct 211 from the second air outlet 12. The PTC heater 22 may be installed upstream or downstream of the second fan 23. The first fan and the second fan 23 may be both a cross-flow fan, an axial flow fan, a centrifugal fan, or the like. Through setting up two fans, make electric fan heater 2 of lower part can be totally independent of the main heat transfer system of this indoor cabinet-type air conditioner, realize the independent control to electric fan heater 2.
The second outlet 12 and the first outlet 11 are disposed on the same side of the housing 1. When the heat exchanger starts a refrigeration mode, the PTC heater 22 can be closed, the second fan 23 is started, and under the condition that the first air outlet 11 blows out cold air, natural air blown out from the second air outlet 12 can float upwards to be mixed with the cold air above the first air outlet, so that the temperature of the cold air at the first air outlet 11 can be reduced, the phenomenon that the air with too low temperature directly blows a user is avoided, and the comfort of the user is improved.
The casing 1 further has a first air inlet 13 and a second air inlet 14 respectively connected to the first air duct and the second air duct 211. Under the action of the second fan 23, the air enters the second air duct 211 from the second air inlet 14 and then flows out from the second air outlet 12. Under the action of the first fan, air enters the first air duct from the first air inlet 13 and then flows out from the first air outlet 11. Of course, the casing 1 may be provided with only one air inlet, and the first fan and the second fan 23 respectively draw air into the first air duct and the second air duct 211 from the air inlet.
It should be noted that, the cabinet air conditioner indoor unit may also be provided with only one fan, one part of the fan is located in the first air duct, and the other part of the fan is located in the second air duct 211, that is, the main heat exchange system and the heater unit 2 share one fan, and air is respectively sucked into the first air duct and the second air duct 211 through the two parts of the fan. In this case, when the heat exchanger operates in the heating mode, the PTC heater 22 is turned on; when the heat exchanger is operated in the cooling mode, the PTC heater 22 is turned off.
In the embodiment of the present invention, the fan heater 2 further includes a housing 21, and the second air duct 211 is formed in the housing 21, that is, the PTC heater 22 is installed in the housing 21. An air inlet 212 and an air outlet 213 communicating with the second air duct 211 are formed in the housing 21, as shown in fig. 2, a schematic structural view of the warm air blower in the cabinet air conditioner provided by the present invention is shown, and as shown in fig. 3, a bottom view of the warm air blower in the cabinet air conditioner provided by the present invention is shown. When the fan heater 2 is located in the housing 1, the air outlet 213 is opposite to the second air outlet 12, so that the air flowing through the second air duct 211 can be discharged from the second air outlet 12. Further, the housing 21 is detachably mounted in the casing 1, so that the fan heater 2 can be mounted inside the casing 1 for use, and can also be taken out of the casing 1 and moved to other positions, such as the user's side or the position with lower indoor ambient temperature, to be used as an independent heating appliance.
When the first air inlet 13 and the second air inlet 14 are opened on the housing, the second air inlet 14 is opposite to the air inlet 212, and the second air outlet 12 is opposite to the air outlet 213. Under the action of the second fan 23, the air passes through the second air inlet 14 and the air inlet 212 in sequence, enters the second air duct 211, and then passes through the air outlet 213 and the second air outlet 12 in sequence to flow out of the enclosure 1.
Further, a rotating mechanism is installed in the housing 1, the housing 21 is installed on the rotating mechanism, and the rotating mechanism is used for driving the housing 21 to rotate so that the air outlet 213 horizontally moves within the range of the second air outlet 12. The size of the second air outlet 12 is larger than that of the air outlet 213, so that when the casing 21 rotates in the housing 1, the air outlet 213 can swing within the left-right range of the second air outlet 12, so that air is blown out from the second air outlet 12 in a left-right sweeping manner, the air supply angle of the second air outlet is increased, and the user experience is improved.
In the embodiment of the present invention, the second fan 23 is a cross-flow fan, and includes a cross-flow fan and a motor, and the motor is connected to the cross-flow fan for driving the cross-flow fan to rotate. As shown in fig. 3, the casing 21 includes an outer casing 202 and a volute 201, the volute 201 is fixedly installed inside the outer casing 202, a second air duct 211 is formed in the volute 201, an air inlet 212 and an air outlet 213 are opened in the outer casing 202, a cross-flow fan is installed in the second air duct 211, and a motor is installed between the outer casing 202 and the volute 201. As shown in fig. 3, the second air passage 211 formed in the scroll case 201 is a scroll air passage. Wherein, the PTC heater 22 is detachably installed in the volute body 201.
In the embodiment of the invention, the shell 1 and the shell 21 are respectively provided with an electric connector, and when the fan heater 2 is positioned in the shell 1, the electric connector on the shell 1 is matched with the electric connector on the shell to form electric connection. For example, an electrical connection interface is arranged in the casing 1, an electrical connection joint is arranged on the casing, and when the fan heater 2 is located in the casing 1, the electrical connection joint and the electrical connection interface are plugged to be matched so as to realize electrical connection. Whether the fan heater 2 is positioned in the shell 1 can be judged according to the connection state of the electric connection joint and the electric connection interface, and the fan heater 2 can be powered through the connection of the electric connection joint and the electric connection interface.
Specifically, the electric connection interface and the electric connection joint are respectively arranged on the side walls of the casing 1 and the shell, and when the fan heater 2 is placed in the casing 1, the electric connection joint is abutted to the electromechanical connection interface; or, the electric connection interface is an interface board arranged at the bottom of the case 1, the electric connection joint is arranged at the bottom of the case, and when the fan heater 2 is placed in the case 1, the contact of the electric connection joint at the bottom of the case is attached to the contact of the interface board.
Furthermore, communication interfaces are arranged on the electric connecting piece on the shell of the warm air blower 2 and the electric connecting piece on the shell 1, and when the warm air blower 2 is installed in the shell 1 and the two electric connecting pieces are connected, power supply to the warm air blower 2 and communication between the warm air blower 2 and the air conditioner host are achieved.
In an embodiment of the present invention, the fan heater 2 further includes an electrical connection plug electrically connected to the PTC heater 22 and the second fan 23 by power lines. When the fan heater 2 is taken out for use, it is electrically connected to an external power supply through an electrical connection plug. The user can move the position of the warm air blower 2 as required to be used as an independent heating device. Certainly, when the fan heater 2 is placed inside the casing 1 for use, the fan heater can also be electrically connected with an external power supply through the connecting plug, and an electrical connection interface and an electrical connection joint do not need to be respectively arranged on the casing 1 and the casing of the fan heater 2. The outer side of the shell is provided with a containing groove, when the warm air blower 2 is placed in the machine shell 1 for use, the power line and the electric connection plug can be contained in the containing groove.
In the embodiment of the invention, when the warm air blower 2 is placed in the casing 1, the warm air blower is positioned at the bottom of the casing 1, the bottom of the casing 1 is provided with the limiting structure, and the limiting structure is used for limiting the displacement of the casing relative to the bottom of the casing 1 so as to prevent the warm air blower 2 from deviating due to the vibration of the fan when the warm air blower 2 is installed in the casing 1 and works.
In one embodiment, the limiting structure is a sinking groove formed at the bottom of the casing 1, and the shape of the sinking groove is matched with the shape of the bottom of the casing. When the warm air blower 2 is arranged inside the machine shell 1, the bottom of the shell is directly embedded in the sinking groove, and then positioning and installation are completed. Wherein, the electric connection interface is arranged in the sinking groove.
In another embodiment, the limiting structure includes a guide groove disposed at the bottom of the casing 1, the guide groove extends along the direction in which the fan heater 2 slides from the second air outlet 12 to the inside of the casing 1, and the width of the guide groove is the same as the width of the housing. When the fan heater 2 is installed inside the cabinet 1, the housing is pushed from the second air outlet 12 to the inside of the cabinet 1 until being installed in place. The guide groove may be used to limit the displacement of the fan heater 2 in a direction perpendicular to the guide groove. Furthermore, a spring clamping block is arranged at the bottom of the machine shell 1 close to the second air outlet 12 in the extending direction of the guide groove, and when the warm air blower 2 is installed in place, the spring clamping block is ejected out to limit the displacement of the warm air blower 2 in the extending direction of the guide groove. The guide groove may be a sunken groove formed at the bottom of the casing 1, or may be formed between two guide members fixed at the bottom of the casing 1, and the guide members may be guide plates or guide bosses, etc.
As shown in fig. 2 and 3, in the embodiment of the present invention, the housing includes a contoured sidewall 214, and the air outlet 213 opens on the contoured sidewall 214, and the contoured sidewall 214 is conformal with the corresponding sidewall of the casing 1. Namely, the shape of the profile sidewall 214 is the same as the shape of the sidewall of the casing 1 where the second outlet 12 is located. For example, the side wall of the housing 1 where the second air outlet 12 is located is an arc-shaped structure, and the profiling side wall 214 is the same as the side wall of the housing 1 where the second air outlet 12 is located, so that the fan heater 2 has a more attractive installation effect when installed in the housing 1.
As shown in fig. 3, the housing further includes another contoured sidewall opposite to the contoured sidewall 214, where the air inlet 212 is opened, and the other contoured sidewall is conformal with the sidewall of the casing 1 corresponding to the other contoured sidewall. For example, the second air inlet 14 and the second air outlet 12 are respectively disposed on the front panel and the rear panel of the cabinet 1, and the contoured sidewalls corresponding to the air outlet 213 and the air inlet 212 are respectively conformal with the front panel and the rear panel.
Further, the housing further comprises two opposite planar sidewalls 215, and the two planar sidewalls 215 are respectively connected to two ends of the profiling sidewall 214. When the fan heater 2 is located in the housing 1, the two planar sidewalls 215 are located at two sides of the second outlet 12 in the axial direction. The distance between the outer sides of the two planar side walls 215 can be smaller than the width of the second air outlet 12, so that the warm air blower 2 can be conveniently taken and placed; alternatively, the distance between the outer sides of the two planar sidewalls 215 is equal to the width of the second outlet 12, and the profiling sidewall 214 is provided with a pull handle.
Wherein, when the casing 21 comprises the outer casing 202 and the volute casing 201, the contoured sidewall 214 and the planar sidewall 215 are both part of the outer casing 202.
Further, the two planar sidewalls 215 are disposed in parallel, when the bottom of the housing 1 is provided with a guide slot, the length direction of the planar sidewalls 215 is the same as the length direction of the guide slot, the distance between the outer sides of the two planar sidewalls 215 is equal to the width of the guide slot, and the housing can be installed in the guide slot in a pulling manner.
As shown in fig. 1, in the embodiment of the present invention, an air outlet decoration plate 15 is disposed at the second air outlet 12, the air outlet decoration plate 15 is slidably mounted on the housing 1, and the air outlet decoration plate 15 has two states of opening and closing the second air outlet 12. When the fan heater 2 works in the machine shell 1, the air outlet decorative plate 15 is opened; when the fan heater 2 is not operated or the fan heater 2 is located outside the cabinet 1 to operate, the air outlet decoration plate 15 may be selectively closed to prevent dust from entering the inside of the cabinet 1. Wherein, the first air outlet 11 is also provided with an air outlet decoration board, and the decoration boards at the first air outlet 11 and the second air outlet 12 are mutually independent.
Further, the air outlet decoration plate 15 is provided with a plurality of air outlet holes 151, so that when the fan heater 2 is located inside the housing 1 for operation, the air blown out from the air outlet 213 can be blown out of the housing 1 through the plurality of air outlet holes 151. When the fan heater 2 works in the machine shell 1, the air outlet decorative plate 15 is opened to adopt a large-air-volume air supply mode; the air outlet decoration plate 15 is closed in a no-wind mode. Wherein, as shown in fig. 4, it is a partial structural front view of the cabinet air conditioner provided by the present invention, as shown in fig. 1 and 4, the air outlet decoration board 15 includes two arc sliding plates which are slidably installed on the housing 1.
The present invention further provides a control method of a cabinet air conditioner according to any of the above embodiments, and fig. 5 is a flowchart of the control method of the cabinet air conditioner according to the present invention. The control method of the indoor cabinet air conditioner comprises the following steps:
s100, acquiring a first control instruction sent by a user;
s200, controlling working modes corresponding to the operation of the heat exchanger according to the first control instruction, wherein the working modes comprise a heating mode and a refrigerating mode;
and S300, controlling the opening and closing of the PTC heater 22 and the fan and adjusting the rotating speed of the fan according to the working mode.
The fan in this embodiment may be the second fan 23, or may be a fan shared by the warm air blower 2 and the main heat exchange system. The heat exchanger, the PTC heater 22 and the fan can be controlled by a main controller of the cabinet air conditioner indoor unit, and the main controller is respectively in communication connection with the heat exchanger, the PTC heater 22 and the fan. The user may send a first control command to the main controller, which controls the adjustment of the control mode of the heat exchanger, and the turning on and off of the heat exchanger, the PTC heater 22, and the blower.
The first control instruction sent by the user comprises a control instruction for controlling the main heat exchange system to operate in a heating mode, a cooling mode, an air supply mode or an automatic mode. The operation modes of the heat exchanger comprise a heating mode and a cooling mode. The operation mode of the warm air blower 2 comprises a heating mode and an air supply mode, and specifically, the warm air blower 2 operates in the heating mode by controlling the PTC heater 22 and the fan to be started; the fan heater 2 operates in the blowing mode by controlling the PTC heater 22 to be turned off and the fan to be turned on.
If the first control instruction sent by the user is used for controlling the main heat exchange system to operate in the heating mode, the heat exchanger is started to operate in the heating mode, and the fan is started; if a first control instruction sent by a user is used for controlling the main heat exchange system to operate in a refrigeration mode, starting a heat exchanger to operate in the refrigeration mode and starting a fan; if the first control instruction sent by the user is used for controlling the main heat exchange system to operate the air supply mode, the heat exchanger is closed, and only the fan is started; and if the first control instruction sent by the user is an automatic mode for controlling the main heat exchange system to operate, automatically adjusting the main heat exchange system to operate the heating mode, the refrigerating mode or the air supply mode according to the indoor environment temperature. When the heat exchanger operates in a heating mode, the fan heater 2 is controlled to operate in the heating mode at the same time for assisting in heating; when the heat exchanger operates in a refrigeration mode or an air supply mode, the air supply mode of the fan heater is controlled to operate simultaneously so as to enhance indoor air circulation.
When the main heat exchange system operates in a heating mode, the heating quantity of the PTC heater 22 can be adjusted by adjusting the rotating speed of the second fan 23, so as to adjust the intensity of auxiliary heating; when the main heat exchange system operates in a refrigeration mode or an air supply mode, the air supply quantity can be adjusted by adjusting the rotating speed of the second fan 23 so as to adjust the air circulation force.
When the main heat exchange system and the heater unit 2 adopt two independent fans, if the main heat exchange system operates in any working mode, the first fan and the second fan 23 can be simultaneously started, and the heater unit 2 can be independently turned off by independently controlling the second fan 23 and the PTC heater 22. By arranging the first fan and the second fan 23, the fan heater 2 can be independently controlled to operate no matter whether the main heat exchange system is in an open state or a closed state.
According to the control method of the indoor cabinet air conditioner, the opening and closing of the PTC heater 22 and the fan are controlled according to the working mode of the main heat exchange system, so that the combined control of the main heat exchange system and the lower fan heater 2 is realized, and different functional requirements of users on air outlet at the lower part of the air conditioner are met; meanwhile, the rotating speed of the fan is adjusted according to the working mode of the main heat exchange system, and the heating requirements of users on different strengths of indoor lower space are met.
In one embodiment, if the operation mode of the heat exchanger is the heating mode, in step S300, controlling the PTC heater 22 and the fan to be turned on and off and adjusting the rotation speed of the fan according to the operation mode includes:
and S301, controlling the PTC heater 22 and the fan to be started, namely starting the warm air blower 2 to operate in a heating mode.
S302, acquiring a second control instruction sent by a user, and determining the heating capacity of the PTC heater 22 according to the second control instruction;
s303, controlling the rotating speed of the fan according to the heating capacity.
The fan in this embodiment may be the second fan 23, or may be a fan shared by the warm air blower 2 and the main heat exchange system. When the main heat exchange system operates in a heating mode, a user can also adjust the heating intensity of the fan heater 2 according to the requirement. The second control command corresponds to a plurality of heating intensity levels of the warm air blower 2, the plurality of heating intensity levels respectively correspond to different heating amounts of the PTC heaters 22, and the different heating amounts correspond to different rotation speeds of the blower.
In the embodiment of the invention, the warm air blower 2 comprises two heating intensity levels of strength and weakness, and the heating modes of the corresponding warm air blower 2 are divided into a forced heating mode and a weak heating mode. The second control command includes controlling the fan heater 2 to operate the forcible heating mode or the weak heating mode. The heating capacity and the fan rotating speed under different heating modes can be preset in the air conditioner control system. And after the second control instruction is obtained, calculating the rotating speed required by the fan according to the corresponding heating capacity, and adjusting the fan to operate at the rotating speed.
In another embodiment, if the operation mode of the heat exchanger is the heating mode, the step S300 of controlling the PTC heater 22 and the fan to be turned on and off and adjusting the rotation speed of the fan according to the operation mode includes:
and S304, controlling the PTC heater 22 and the fan to be started, namely starting the warm air blower 2 to operate in a heating mode.
S305, obtaining the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature. The indoor environment temperature can be acquired by the temperature sensor and sent to the main controller, and the main controller controls and adjusts the rotating speed of the fan. The fan in this embodiment may be the second fan 23, or may be a fan shared by the warm air blower 2 and the main heat exchange system.
Specifically, in step S305, controlling the rotation speed of the fan according to the heating capacity specifically includes:
when the indoor environment temperature is lower than a first temperature threshold value, controlling the rotating speed of the fan to be a first rotating speed;
when the indoor environment temperature is not less than the first temperature threshold and less than the second temperature threshold, controlling the rotating speed of the fan to be a second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
The heating capacity of the fan heater 2 or the rotating speed of the fan, corresponding to the first temperature threshold and the second temperature threshold, can be preset in the control system of the cabinet air-conditioning indoor unit. When the indoor environment temperature reaches a certain temperature range, the fan is controlled to operate at a corresponding rotating speed. For example, the first temperature threshold is 8 ℃, the second temperature threshold is 16 ℃, and when the indoor ambient temperature is less than 16 ℃, the main heat exchange system operates in the heating mode. On the basis, when the indoor environment temperature is lower than 8 ℃, the rotating speed of the fan is controlled and adjusted to be a first rotating speed; and when the indoor environment temperature is not less than 8 ℃ and less than 16 ℃, controlling and adjusting the rotating speed of the fan to be a second rotating speed. The first rotational speed may be a maximum rotational speed of the fan, and the second rotational speed may be a minimum rotational speed of the fan.
In the embodiment of the present invention, if the operation mode of the heat exchanger is the cooling mode, in step S300, controlling the PTC heater 22 and the fan to be turned on and off and adjusting the rotation speed of the fan according to the operation mode includes:
and S306, controlling the PTC heater 22 to be closed and the fan to be opened, namely, starting the fan heater 2 to operate the air supply mode.
S307, acquiring the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature. The indoor environment temperature can be acquired by the temperature sensor and sent to the main controller, and the main controller controls and adjusts the rotating speed of the fan. The fan in this embodiment may be the second fan 23, or may be a fan shared by the warm air blower 2 and the main heat exchange system.
Specifically, in step S307, controlling the rotation speed of the fan according to the indoor environment temperature specifically includes:
if the indoor environment temperature is not less than the third temperature threshold and less than the fourth temperature threshold, controlling the rotating speed of the fan to be a third rotating speed;
if the indoor environment temperature is not less than the fourth temperature threshold, controlling the rotating speed of the fan to be a fourth rotating speed;
wherein the third rotational speed is less than the fourth rotational speed.
The heating capacity of the fan heater 2 or the rotating speed of the fan, which corresponds to the third temperature threshold and the fourth temperature threshold, can be preset in the control system of the cabinet air-conditioning indoor unit. When the indoor environment temperature reaches a certain temperature range, the fan is controlled to operate at a corresponding rotating speed. For example, the third temperature threshold is 16 ℃, the fourth temperature threshold is 24 ℃, and when the indoor ambient temperature is not less than 16 ℃, the main heat exchange system operates in the cooling mode. On the basis, when the indoor environment temperature is not less than 16 ℃ and less than 24 ℃, controlling and adjusting the rotating speed of the fan to be a third rotating speed; and when the indoor environment temperature is not less than 24 ℃, controlling and adjusting the rotating speed of the fan to be a fourth rotating speed. The third rotational speed may be a minimum rotational speed of the fan, and the fourth rotational speed may be a maximum rotational speed of the fan.
In the embodiment of the present invention, when the main heat exchange system operates in the cooling mode or the air supply mode, in step S300, the PTC heater 22 and the fan are controlled to be turned on and off and the rotation speed of the fan is adjusted according to the operating mode. The method specifically comprises the following steps:
the PTC heater 22 is controlled to be closed and the fan is controlled to be opened, namely, the fan heater 2 is started to operate the air supply mode.
Acquiring a third control instruction of a user, and determining the air supply quantity of the fan according to the third control instruction;
and controlling the rotating speed of the fan according to the air supply quantity.
The fan in this embodiment may be the second fan 23, or a fan shared by the fan heater 2 and the main heat exchange system. The third control instruction corresponds to a plurality of air supply grades of the warm air blower 2, and when the main heat exchange system operates in a refrigeration mode or an air supply mode, a user can also adjust the air supply intensity of the warm air blower 2 as required. The third control instruction corresponds to a plurality of air supply intensity levels of the fan heater 2, the plurality of air supply levels correspond to different air supply amounts of the fan, and the different air supply amounts correspond to different rotation speeds of the fan.
In the embodiment of the invention, the warm air blower 2 comprises two air supply intensity grades of strong and weak. The second control instruction comprises a strong air supply mode or a weak air supply mode for controlling the fan heater 2 to operate. The rotating speeds of the fans in different air supply modes can be preset in the air conditioner control system. And after the third control instruction is obtained, calculating the rotating speed required by the fan according to the corresponding air supply intensity and adjusting the fan to operate at the rotating speed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. An indoor cabinet air conditioner comprises a shell and a heat exchanger, and is characterized by further comprising a PTC heater, a fan and a temperature sensor, wherein a first air channel and a second air channel are arranged in the shell;
the air conditioner comprises a shell, a first air outlet and a second air outlet, wherein the shell is provided with the first air outlet and the second air outlet which are communicated with the first air channel and the second air channel respectively, the second air outlet is located below the first air outlet and close to the bottom of the shell, a fan is used for sending air flowing through the second air channel out of the second air outlet, a temperature sensor is in communication connection with a PTC heater and the fan respectively, and the temperature sensor is used for sensing the indoor environment temperature of the cabinet air conditioner.
2. An indoor unit of an air conditioner as recited in claim 1 further comprising a housing, said housing being detachably mounted in said casing, said second air duct being formed in said housing, said housing being provided with an air inlet and an air outlet communicating with said second air duct, said air outlet being opposite to said second air outlet.
3. An indoor unit of an air conditioner as recited in claim 2 wherein a rotation mechanism is mounted in said housing, said housing is mounted on said rotation mechanism, said rotation mechanism is configured to rotate said housing to enable said air outlet to move horizontally within the range of said second air outlet.
4. An indoor unit for an air conditioner according to claim 1, wherein an air outlet decoration plate is provided at the second air outlet, the air outlet decoration plate is slidably mounted to the cabinet, and the air outlet decoration plate has two states of opening and closing the second air outlet.
5. A control method of an indoor unit of an air conditioner as claimed in any one of claims 1 to 4, comprising:
acquiring a first control instruction sent by a user;
controlling a working mode corresponding to the operation of the heat exchanger according to the first control instruction, wherein the working mode comprises a heating mode and a refrigerating mode;
and controlling the opening and closing of the PTC heater and the fan and adjusting the rotating speed of the fan according to the working mode.
6. The method for controlling a cabinet air conditioner according to claim 5, wherein if the operation mode is a heating mode, the controlling of the on and off of the PTC heater and the blower and the rotation speed of the blower according to the operation mode includes:
controlling the PTC heater and the fan to be started;
acquiring a second control instruction sent by a user, and determining the heating capacity of the PTC heater according to the second control instruction;
and controlling the rotating speed of the fan according to the heating quantity.
7. The method for controlling a cabinet air conditioner according to claim 5, wherein if the operation mode is a heating mode, the controlling of the on and off of the PTC heater and the blower and the rotation speed of the blower according to the operation mode includes:
controlling the PTC heater and the fan to be started;
and acquiring the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature.
8. The method for controlling the cabinet air conditioner indoor unit according to claim 7, wherein the controlling the rotation speed of the fan according to the heating capacity specifically comprises:
when the indoor environment temperature is lower than a first temperature threshold value, controlling the rotating speed of the fan to be a first rotating speed;
when the indoor environment temperature is not less than a first temperature threshold and less than a second temperature threshold, controlling the rotating speed of the fan to be a second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
9. The method for controlling a cabinet air conditioner according to claim 5, wherein if the operation mode is a cooling mode, the controlling the opening and closing of the PTC heater and the blower and the rotation speed of the blower according to the operation mode includes:
controlling the PTC heater to be closed and the fan to be started;
and acquiring the indoor environment temperature, and controlling the rotating speed of the fan according to the indoor environment temperature.
10. The method for controlling a cabinet air conditioner indoor unit according to claim 9, wherein the controlling the rotation speed of the fan according to the indoor ambient temperature specifically includes:
if the indoor environment temperature is not less than a third temperature threshold and less than a fourth temperature threshold, controlling the rotating speed of the fan to be a third rotating speed;
if the indoor environment temperature is not less than a fourth temperature threshold value, controlling the rotating speed of the fan to be a fourth rotating speed;
wherein the third rotational speed is less than the fourth rotational speed.
CN202110145872.7A 2021-02-02 2021-02-02 Indoor cabinet air conditioner and control method of indoor cabinet air conditioner Pending CN112984638A (en)

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Application Number Priority Date Filing Date Title
CN202110145872.7A CN112984638A (en) 2021-02-02 2021-02-02 Indoor cabinet air conditioner and control method of indoor cabinet air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110145872.7A CN112984638A (en) 2021-02-02 2021-02-02 Indoor cabinet air conditioner and control method of indoor cabinet air conditioner

Publications (1)

Publication Number Publication Date
CN112984638A true CN112984638A (en) 2021-06-18

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Country Link
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080075394A (en) * 2007-02-12 2008-08-18 삼성전자주식회사 Air conditioner
CN103528134A (en) * 2013-09-27 2014-01-22 广东美的制冷设备有限公司 Air conditioner and heating control method thereof
CN110410970A (en) * 2019-07-12 2019-11-05 青岛海尔空调器有限总公司 Control method and air conditioner indoor unit for air conditioner indoor unit
CN211822739U (en) * 2020-01-16 2020-10-30 青岛海尔空调器有限总公司 Cabinet type air conditioner indoor unit and air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080075394A (en) * 2007-02-12 2008-08-18 삼성전자주식회사 Air conditioner
CN103528134A (en) * 2013-09-27 2014-01-22 广东美的制冷设备有限公司 Air conditioner and heating control method thereof
CN110410970A (en) * 2019-07-12 2019-11-05 青岛海尔空调器有限总公司 Control method and air conditioner indoor unit for air conditioner indoor unit
CN211822739U (en) * 2020-01-16 2020-10-30 青岛海尔空调器有限总公司 Cabinet type air conditioner indoor unit and air conditioner

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