CN113932296B - Novel refrigerating device and control method - Google Patents

Novel refrigerating device and control method Download PDF

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Publication number
CN113932296B
CN113932296B CN202111467628.9A CN202111467628A CN113932296B CN 113932296 B CN113932296 B CN 113932296B CN 202111467628 A CN202111467628 A CN 202111467628A CN 113932296 B CN113932296 B CN 113932296B
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Prior art keywords
air door
control device
air
electric
shell
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CN202111467628.9A
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CN113932296A (en
Inventor
王雪梦
仪志恒
冯树广
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HENAN XINFEI REFRIGERATION APPLIANCE CO Ltd
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HENAN XINFEI REFRIGERATION APPLIANCE CO Ltd
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Publication of CN113932296A publication Critical patent/CN113932296A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a novel refrigerating device, which is used as an indoor unit of a vertical air conditioner, wherein a shell is vertically and fixedly connected at the corner where two side walls of the indoor are intersected and positioned at the middle upper part of a wall body; an upper air inlet communicated with indoor upper air is arranged at the top end of the shell, and an upper electric air door is arranged at the upper air inlet; the bottom end of the shell is provided with a lower air inlet communicated with indoor middle-lower air, and a lower electric air door is arranged at the lower air inlet; the shell is provided with an electric control device and a temperature sensor connected with the electric control device, and the temperature sensor is embedded on the shell and used for detecting indoor air temperature; the electric control device is provided with a remote controller in a matching way. The invention also discloses a control method of the refrigerating device. The shell utilizes the dead space at the middle upper part of the indoor corner, saves the ground space and improves the utilization rate of the indoor space; the invention can adopt an upper air inlet mode, improves the heat exchange temperature difference at the same evaporator temperature, further improves the heat exchange efficiency of air and the evaporator, and reduces the energy consumption of the air conditioner.

Description

Novel refrigerating device and control method
Technical Field
The invention relates to the technical field of air conditioners, in particular to an indoor unit of a household air conditioner and a control method thereof.
Background
With the continuous improvement of the living standard of people, the air conditioner is becoming one of the necessary household appliances. The indoor unit of the vertical air conditioner in the current market is placed on the indoor ground, and the vertical air conditioner is large in size and occupies a large indoor space.
In recent years, the development direction of the indoor unit of the vertical air conditioner has a multifunctional (such as a negative ion generator for generating negative ions in air, humidification and the like) direction and an attractive direction, but the development direction of the indoor unit is not capable of effectively saving the indoor use area.
The indoor unit of the existing vertical air conditioner adopts a mode of lower air inlet and upper air outlet; the lower air inlet is characterized in that the density of the cold air is higher than that of the hot air, so that the cold air is arranged below; the lower air inlet can lead to relatively lower temperature of air entering the indoor unit, which obviously is unfavorable for improving the heat exchange efficiency of the indoor unit.
The hot air at the upper part of the air conditioner is slowly convected, and can not be cooled rapidly; the upper air outlet is highly influenced by air, and the air outlet is easy to blow directly to people, so that the health of the people is adversely affected.
Disclosure of Invention
The invention aims to provide a novel refrigerating device, in particular to an indoor unit of a vertical air conditioner, which has higher heat exchange efficiency and can save the indoor effective use area by utilizing the indoor dead space.
In order to achieve the above purpose, the novel refrigerating device of the invention is used as an indoor unit of a vertical air conditioner, and comprises a vertically arranged shell, wherein an evaporator and an inner fan are arranged in the shell, an air outlet is arranged on the shell, the evaporator is positioned between the inner fan and the air outlet, the air outlet direction of the inner fan faces the air outlet, and when in use, the evaporator is led to the outside through a refrigerant pipeline and is connected with an outdoor unit arranged outdoors so as to form a refrigerating system;
the shell is vertically and fixedly connected to the corner where the side walls of the two sides of the room intersect and is positioned at the middle upper part of the wall body;
an upper air inlet communicated with indoor upper air is arranged at the top end of the shell, and an upper electric air door is arranged at the upper air inlet;
the bottom end of the shell is provided with a lower air inlet communicated with indoor middle-lower air, and a lower electric air door is arranged at the lower air inlet;
the shell is provided with an electric control device and a temperature sensor connected with the electric control device, and the temperature sensor is embedded on the shell and used for detecting indoor air temperature; the electric control device is provided with a remote controller in a matching way.
The remote controller is provided with a wind power setting button and controls the inner fan to correspondingly provide 1-6 gears of wind power through the electric control device, wherein the 1 gear of wind power is minimum and the 6 gears of wind power is maximum;
after the refrigerating system is started, a user sets a target value of the indoor temperature through a remote controller, and the target value is called a set temperature TM;
the electric control device continuously acquires the temperature TS of indoor air through a temperature sensor, and continuously calculates the difference delta T=TS-TM between TS and TM;
when the delta T is more than or equal to 5 ℃, the electric control device controls the opening degrees of the upper electric air door and the lower electric air door to be 100 percent, and simultaneously the inner fan is in an opening state;
when the delta T is less than or equal to minus 1 ℃, the electric control device closes the refrigerating system, the inner fan, the upper electric air door and the lower electric air door;
when delta T is less than 5 ℃ below zero at minus 1 ℃, the electric control device controls the opening degree of the upper electric air door and the opening degree of the lower electric air door according to the wind power gear set by the remote controller, and specifically comprises the following steps:
when the wind power set by the remote controller is 1 gear, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be one third;
when the wind power set by the remote controller is 2 gears, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be two thirds;
when the wind power set by the remote controller is 3 gears, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be 100%;
when the wind power set by the remote controller is in 4 gears, the electric control device controls the opening degree of the upper electric air door to be 100%, and simultaneously adjusts the opening degree of the lower electric air door to be one third;
when the wind power set by the remote controller is 5 gears, the electric control device controls the opening degree of the upper electric air door to be 100 percent, and simultaneously adjusts the opening degree of the lower electric air door to be two thirds;
when the wind power set by the remote controller is 6 gears, the electric control device controls the opening degree of the upper electric air door to be 100%, and simultaneously adjusts the opening degree of the lower electric air door to be 100%.
The invention has the following advantages:
1. in a living room, dead space which is not utilized is usually obtained at the corner where two side walls intersect, particularly at the middle upper part of the corner; the shell just utilizes the dead space at the middle and upper parts of the corners, saves the ground space and improves the utilization rate of the indoor space; for small households, the practical value is more obvious, and the market competitiveness of the product is improved.
2. Since the hot air density is lower than the cold air, the air temperature in the upper part of the room is higher than the air temperature in the lower part. Because the invention has the upper electric air door positioned at the top of the shell, the upper air inlet mode can be adopted, so that partial air with relatively high indoor temperature enters the shell, and then the heat exchange temperature difference is improved at the same evaporator temperature, and further the heat exchange efficiency of the air and the evaporator is improved, and the energy consumption of the air conditioner is reduced.
Of course, the invention also has a lower air inlet, so the invention can provide larger air inlet by simultaneously opening the upper air inlet and the lower air inlet.
3. By adopting the control method, when the delta T is larger, the upper electric air door and the lower electric air door are opened to the greatest extent, so that the indoor temperature is reduced rapidly, and the comfort level of indoor personnel is improved; and when the delta T is smaller, more refined adjustment is performed, so that the heat exchange efficiency is improved as much as possible on the premise of meeting the wind power, the indoor cooling speed is further increased, and the energy consumption of the air conditioner is reduced.
By adopting the control method, when the required air quantity is smaller (1-3 wind power), the lower electric air door is not opened, and the upper electric air door is preferentially opened and the air at the upper part of the room is sucked, so that the heat exchange temperature difference as large as possible is obtained, the heat exchange efficiency of the evaporator of the indoor unit and the circulating air is improved as much as possible, and the energy consumption of the air conditioner is reduced. Meanwhile, 6-gear wind power is respectively matched with the total opening degrees of 6 upper electric air doors and 6 lower electric air doors, so that the air inlet quantity is more matched with the wind power.
In a word, the invention has the advantages of saving indoor space, higher heat exchange efficiency, more energy saving, more matching of the opening degree of the electric air door with the temperature and the set wind power condition, and the like.
Drawings
Fig. 1 is a schematic view of the structure of the invention installed at a corner. The direction indicated by the arrow in fig. 1 is the direction of the air flow there.
Detailed Description
As shown in fig. 1, the novel refrigeration device of the invention is used as an indoor unit of a vertical air conditioner, and comprises a shell 1 which is vertically arranged, wherein an evaporator 2 and an inner fan 3 are arranged in the shell 1, an air outlet 4 is arranged on the shell 1, the evaporator 2 is positioned between the inner fan 3 and the air outlet 4, the air outlet direction of the inner fan 3 faces the air outlet 4, and when in use, the evaporator 2 is led to the outside through a refrigerant pipeline and is connected with an outdoor unit which is arranged outdoors, so that a refrigeration system is formed; refrigeration systems are conventional in the art and include a compressor, a condenser, a throttling device (e.g., a capillary tube), and an evaporator, which are cyclically connected by refrigerant lines, and are not described in detail.
The shell 1 is vertically and fixedly connected to a corner 6 where the side walls 5 of the two sides of the room intersect and is positioned at the middle upper part of the wall body;
an upper air inlet 7 communicated with indoor upper air is arranged at the top end of the shell 1, and an upper electric air door 8 is arranged at the upper air inlet 7;
the bottom end of the shell 1 is provided with a lower air inlet 9 communicated with indoor middle-lower air, and a lower electric air door 10 is arranged at the lower air inlet 9;
the shell 1 is provided with an electric control device 11 and a temperature sensor 12 connected with the electric control device 11 through a circuit, and the temperature sensor 12 is embedded on the shell 1 and is used for detecting indoor air temperature; the electric control device 11 is provided with a remote controller. The remote controller for air conditioner is a conventional technology, and is not shown.
The invention has the following advantages:
1. in the living room, dead space is not usually utilized at the corner 6 where the two side walls 5 intersect, particularly at the middle upper part of the corner 6; in the invention, the shell 1 just utilizes the dead space at the middle upper part of the corner 6, saves the ground space and improves the utilization rate of the indoor space; for small households, the practical value is more obvious, and the market competitiveness of the product is improved.
2. Since the hot air density is lower than the cold air, the air temperature in the upper part of the room is higher than the air temperature in the lower part. Because the invention has the upper electric air door 8 positioned at the top of the shell 1, the upper air inlet mode can be adopted, so that partial air with relatively high indoor temperature enters the shell 1, and then the heat exchange temperature difference is improved at the same temperature of the evaporator 2, and further the heat exchange efficiency of the air and the evaporator 2 is improved, and the energy consumption of the air conditioner is reduced.
Of course, since the present invention also has the lower air inlet 9, the present invention can also provide a larger air intake by simultaneously opening the upper air inlet 7 and the lower air inlet 9.
The invention also provides a control method of the novel refrigerating device, wherein the remote controller is provided with a wind power setting button and controls the inner fan 3 to correspondingly provide 1-6 gears of wind power through the electric control device 11 (namely, the inner fan 3 can provide 1 gear, 2 gear, 3 gear, 4 gear, 5 gear and 6 gear of wind power under the control of the electric control device 11), the 1 gear of wind power is minimum, and the 6 gear of wind power is maximum;
after the refrigerating system is started, a user sets a target value of the indoor temperature through a remote controller, and the target value is called a set temperature TM;
the electric control device 11 continuously acquires the temperature TS of indoor air through the temperature sensor 12, and continuously calculates the difference between TS and TM, delta T=TS-TM;
when the delta T is more than or equal to 5 ℃, the electric control device 11 controls the opening degrees of the upper electric air door 8 and the lower electric air door 10 to be 100 percent, and simultaneously the inner fan 3 is in an opening state;
when the delta T is less than or equal to minus 1 ℃, the electric control device 11 closes the (compressor of the) refrigerating system, the inner fan 3, the upper electric air door 8 and the lower electric air door 10;
when delta T is less than 5 ℃ below zero at minus 1 ℃, the electric control device 11 controls the opening degree of the upper electric air door 8 and the opening degree of the lower electric air door 10 according to the wind power gear set by the remote controller, specifically:
when the wind power set by the remote controller is 1 gear, the electric control device 11 controls the lower electric air door 10 to be closed, and simultaneously adjusts the opening degree of the upper electric air door 8 to be one third;
when the wind power set by the remote controller is 2 gears, the electric control device 11 controls the lower electric air door 10 to be closed, and simultaneously, the opening degree of the upper electric air door 8 is adjusted to be two thirds;
when the wind power set by the remote controller is 3 gears, the electric control device 11 controls the lower electric air door 10 to be closed, and simultaneously adjusts the opening degree of the upper electric air door 8 to be 100 percent (namely, the air door is fully opened);
when the wind power set by the remote controller is 4 gears, the electric control device 11 controls the opening degree of the upper electric air door 8 to be 100 percent, and simultaneously adjusts the opening degree of the lower electric air door 10 to be one third;
when the wind power set by the remote controller is 5 gears, the electric control device 11 controls the opening degree of the upper electric air door 8 to be 100 percent, and simultaneously adjusts the opening degree of the lower electric air door 10 to be two thirds;
when the wind power set by the remote controller is 6 gears, the electric control device 11 controls the opening degree of the upper electric air door 8 to be 100%, and simultaneously adjusts the opening degree of the lower electric air door 10 to be 100%.
By adopting the control method, when the delta T is larger, the upper electric air door 8 and the lower electric air door 10 are opened to the greatest extent, so that the indoor temperature is reduced rapidly, and the comfort level of indoor personnel is improved; and when the delta T is smaller, more refined adjustment is performed, so that the heat exchange efficiency is improved as much as possible on the premise of meeting the wind power, the indoor cooling speed is further increased, and the energy consumption of the air conditioner is reduced.
By adopting the control method of the invention, when the required air quantity is smaller, the lower electric air door 10 is not opened, and the upper electric air door 8 is preferentially opened and the air at the upper part of the room is sucked, so that the heat exchange temperature difference as large as possible is obtained, the heat exchange efficiency of the indoor unit evaporator 2 and the circulating air is improved as much as possible, and the energy consumption of the air conditioner is reduced. Meanwhile, 6-gear wind power can be matched with the total opening degree of 6 upper electric air doors 8 and 6 lower electric air doors 10, so that the air inlet quantity is more matched with the wind power.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.

Claims (1)

1. The novel refrigerating device is used as an indoor unit of a vertical air conditioner and comprises a vertically arranged shell, an evaporator and an inner fan are arranged in the shell, an air outlet is formed in the shell, the evaporator is positioned between the inner fan and the air outlet, the air outlet direction of the inner fan faces the air outlet, and when the novel refrigerating device is used, the evaporator is led to the outside through a refrigerant pipeline and is connected with an outdoor unit arranged outdoors so as to form a refrigerating system;
the method is characterized in that:
the shell is vertically and fixedly connected to the corner where the side walls of the two sides of the room intersect and is positioned at the middle upper part of the wall body;
an upper air inlet communicated with indoor upper air is arranged at the top end of the shell, and an upper electric air door is arranged at the upper air inlet; the upper air inlet and the upper electric air door are used for improving the heat exchange temperature difference;
the bottom end of the shell is provided with a lower air inlet communicated with indoor middle-lower air, and a lower electric air door is arranged at the lower air inlet;
the shell is provided with an electric control device and a temperature sensor connected with the electric control device, and the temperature sensor is embedded on the shell and used for detecting indoor air temperature; the electric control device is matched with a remote controller;
the remote controller is provided with a wind power setting button and controls the inner fan to correspondingly provide 1-6 gears of wind power through the electric control device, wherein the 1 gear of wind power is minimum and the 6 gears of wind power is maximum;
after the refrigerating system is started, a user sets a target value of the indoor temperature through a remote controller, and the target value is called a set temperature TM;
the electric control device continuously acquires the temperature TS of indoor air through a temperature sensor, and continuously calculates the difference delta T=TS-TM between TS and TM;
when the delta T is more than or equal to 5 ℃, the electric control device controls the opening degrees of the upper electric air door and the lower electric air door to be 100 percent, and simultaneously the inner fan is in an opening state;
when the delta T is less than or equal to minus 1 ℃, the electric control device closes the refrigerating system, the inner fan, the upper electric air door and the lower electric air door;
when delta T is less than 5 ℃ below zero at minus 1 ℃, the electric control device controls the opening degree of the upper electric air door and the opening degree of the lower electric air door according to the wind power gear set by the remote controller, and specifically comprises the following steps:
when the wind power set by the remote controller is 1 gear, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be one third;
when the wind power set by the remote controller is 2 gears, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be two thirds;
when the wind power set by the remote controller is 3 gears, the electric control device controls the lower electric air door to be closed, and simultaneously, the opening degree of the upper electric air door is adjusted to be 100%;
when the wind power set by the remote controller is in 4 gears, the electric control device controls the opening degree of the upper electric air door to be 100%, and simultaneously adjusts the opening degree of the lower electric air door to be one third;
when the wind power set by the remote controller is 5 gears, the electric control device controls the opening degree of the upper electric air door to be 100 percent, and simultaneously adjusts the opening degree of the lower electric air door to be two thirds;
when the wind power set by the remote controller is 6 gears, the electric control device controls the opening degree of the upper electric air door to be 100%, and simultaneously adjusts the opening degree of the lower electric air door to be 100%.
CN202111467628.9A 2021-12-03 2021-12-03 Novel refrigerating device and control method Active CN113932296B (en)

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CN202111467628.9A CN113932296B (en) 2021-12-03 2021-12-03 Novel refrigerating device and control method

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Application Number Priority Date Filing Date Title
CN202111467628.9A CN113932296B (en) 2021-12-03 2021-12-03 Novel refrigerating device and control method

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CN113932296B true CN113932296B (en) 2023-05-12

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168880A (en) * 2011-03-18 2011-08-31 上海科泰运输制冷设备有限公司 Fresh air volume control device of rail transit air conditioning unit

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Publication number Priority date Publication date Assignee Title
EP1279902A3 (en) * 2001-07-25 2004-10-13 Lg Electronics Inc. Apparatus and method for controlling operation of air conditioner
CN106016666A (en) * 2016-06-27 2016-10-12 珠海格力电器股份有限公司 Air conditioner and air inlet protection system thereof
CN106152424B (en) * 2016-08-31 2019-12-06 青岛海尔空调器有限总公司 Control method of air volume controllable device in air conditioner
CN208238003U (en) * 2018-04-02 2018-12-14 珠海格力电器股份有限公司 air conditioner
CN109442574A (en) * 2018-10-30 2019-03-08 海信（山东）空调有限公司 A kind of air conditioner indoor unit
CN112682854A (en) * 2020-12-01 2021-04-20 珠海格力电器股份有限公司 Suspension angle type air conditioner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168880A (en) * 2011-03-18 2011-08-31 上海科泰运输制冷设备有限公司 Fresh air volume control device of rail transit air conditioning unit

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