CN111578424A - New fan - Google Patents

New fan Download PDF

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Publication number
CN111578424A
CN111578424A CN202010438101.2A CN202010438101A CN111578424A CN 111578424 A CN111578424 A CN 111578424A CN 202010438101 A CN202010438101 A CN 202010438101A CN 111578424 A CN111578424 A CN 111578424A
Authority
CN
China
Prior art keywords
air
heat recovery
air valve
temperature
channel
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
CN202010438101.2A
Other languages
Chinese (zh)
Inventor
胡宏境
迟亚玲
周建峰
兰刚
阮志杰
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202010438101.2A priority Critical patent/CN111578424A/en
Publication of CN111578424A publication Critical patent/CN111578424A/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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/89—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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
    • 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
    • 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
    • F24F2110/12—Temperature of the outside air
    • 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]
    • Y02B30/56—Heat recovery units

Abstract

The invention discloses a new fan, comprising: the air conditioner comprises a shell, an air inlet and an air outlet which are arranged on the shell, a heat recovery device arranged in the shell, a heat recovery air channel communicated with the air inlet and the air outlet, the heat recovery device arranged on the heat recovery air channel, a direct connection air channel communicated with the air inlet and the air outlet, an air valve assembly arranged on the direct connection air channel and the heat recovery air channel, a temperature sensor group for detecting temperature, and a controller for controlling the air valve assembly to be communicated with the heat recovery air channel or the direct connection air channel according to the temperature. According to the novel air conditioner, the air valve assembly is arranged to switch and communicate the heat recovery air channel and the direct connection air channel according to the temperature, so that the direct connection air channel is communicated without passing through the heat recoverer when the heat recovery is not needed, and the heat recovery air channel is communicated when the heat recovery is needed, so that the novel air conditioner is more energy-saving, and an intelligent energy-saving mode is realized.

Description

New fan
Technical Field
The invention relates to the technical field of fresh air systems, in particular to a fresh air fan.
Background
Along with more and more domestic haze phenomena in recent years, air pollution becomes a problem which needs to be solved urgently, and a fresh air machine is researched and developed for bringing indoor fresh air without haze. The fresh air machine is an air purification device, can make the room air produce the circulation, on the one hand discharges the dirty air in the room outdoors, on the other hand carries out measures such as sterilization, disinfection, filtration to outdoor fresh air, inputs indoor again, lets the room be fresh clean air at every moment. The heat recovery fresh air machine is a device for reducing indoor cold and heat load by utilizing recovered exhaust heat (cold energy), can introduce fresh outdoor air, greatly reduces energy consumption, and is environment-friendly and energy-saving.
However, the existing heat recovery fresh air machine is provided with a heat recovery device in the fresh air machine, and heat recovery is performed no matter in winter or summer when heat recovery is not needed. When heat recovery is not required, it is also undoubtedly a waste of energy.
Disclosure of Invention
The invention provides a new fan, aiming at solving the technical problem that the new fan in the prior art is not energy-saving enough.
The technical scheme adopted by the invention is as follows:
the invention provides a new fan, comprising: the air conditioner comprises a shell, an air inlet and an air outlet which are arranged on the shell, a heat recovery device arranged in the shell, a heat recovery air channel communicated with the air inlet and the air outlet, the heat recovery device arranged on the heat recovery air channel, a direct connection air channel communicated with the air inlet and the air outlet, an air valve assembly arranged on the direct connection air channel and the heat recovery air channel, a temperature sensor group for detecting temperature, and a controller for controlling the air valve assembly to be communicated with the heat recovery air channel or the direct connection air channel according to the temperature.
Preferably, the temperature sensor group comprises: a first temperature sensor for detecting the outdoor temperature is arranged close to the air inlet, and a second temperature sensor for detecting the indoor temperature is arranged close to the air outlet.
The air inlet cavity is communicated with the air inlet cavity and is adjacent to the air outlet cavity, the air outlet cavity is directly communicated with the air inlet cavity to form a direct connection air channel, and the air outlet cavity is communicated with the heat recovery cavity to form a heat recovery air channel.
Furthermore, a first air port is formed in the inner wall between the air inlet cavity and the air outlet cavity, a second air port is formed in the inner wall between the heat recovery cavity and the air outlet cavity, and an air valve of the air valve assembly is arranged corresponding to the first air port and the second air port.
The blast gate subassembly includes: the first air valve actuator is arranged in the shell, the first connecting rod assembly is driven by the first air valve actuator, and the first air valve for opening and closing the first air port is driven by the first connecting rod assembly; and the second air valve actuator is fixed on the inner wall of the shell, the second connecting rod assembly is driven by the second air valve actuator, and the second air valve for opening and closing the second air port is driven by the second connecting rod assembly.
The first link assembly includes: the air valve actuator connecting rod is connected to the first air valve actuator and drives the first air valve actuator connecting rod to rotate through the air valve actuator, the first middle connecting rod is hinged to the first air valve actuator connecting rod at one end, the other end of the first middle connecting rod is hinged to one side of the first air valve, and the other side of the first air valve is hinged to the inner wall between the air inlet cavity and the air outlet cavity.
The first link assembly further includes: the left connecting rod is connected with the hinged point of the first air valve actuator connecting rod and the first middle connecting rod at one end, and the fixed pin shaft is hinged with the other end of the left connecting rod and fixed on the shell.
In the specific control:
when the controller controls the air valve assembly to be communicated with the heat recovery air channel, the first air port is closed, and the second air port is opened; when the controller controls the air valve assembly to be communicated with the direct connection air channel, the second air opening is closed, and the first air opening is opened.
And when the indoor temperature is lower than the set temperature, judging whether the outdoor temperature is lower than the set temperature, if so, controlling the air valve assembly to be communicated with the heat recovery air channel by the controller, and if not, controlling the air valve assembly to be communicated with the direct-connected air channel by the controller.
And when the indoor temperature is equal to the set temperature, judging whether the outdoor temperature is equal to the set temperature, if so, controlling the air valve assembly to be communicated with the direct connection air channel by the controller, and if not, controlling the air valve assembly to be communicated with the heat recovery air channel by the controller.
And when the indoor temperature is higher than the set temperature, judging whether the outdoor temperature is higher than the indoor temperature, if so, controlling the air valve assembly to be communicated with the heat recovery air channel by the controller, and if not, controlling the air valve assembly to be communicated with the direct-connected air channel by the controller.
Compared with the prior art, the air valve assembly is arranged to switch and communicate the heat recovery air channel and the direct-connected air channel according to the temperature, so that the direct-connected air channel is communicated without passing through a heat recoverer when heat recovery is not needed, the heat recovery air channel is communicated when heat recovery is needed, the fresh air fan is more energy-saving, and an intelligent energy-saving mode is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural view of a communicating heat recovery duct according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a direct connection air duct according to an embodiment of the present invention;
FIG. 3 is a flow chart of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
The invention provides a new fan, comprising: casing 1, the blast gate subassembly, the temperature sensor group, heat recovery device and controller, the casing is equipped with air intake 11 and air outlet 12 on same one side by side, be equipped with the heat recovery wind channel of intercommunication air intake and air outlet in the casing, the heat recovery device sets up in the casing and is located the hot return air wind channel, still be equipped with the direct connection wind channel that intercommunication air intake and air outlet do not pass through the heat recovery device in the casing, the blast gate subassembly sets up in the casing and is located directly to link on wind channel and the heat recovery wind channel, temperature sensor group detectable indoor temperature and outdoor temperature, the controller switches according to temperature control blast gate subassembly and links heat recovery wind channel and directly links the wind channel, thereby link directly the wind channel when not needing heat recovery, link the heat recovery wind channel when needing heat recovery, make the new fan more energy-conserving, realize intelligent.
In a particular embodiment, the temperature sensor group comprises: first temperature sensor and second temperature sensor, first temperature sensor are close to the air intake setting for detect outdoor temperature, and the setting of second temperature sensor is close to the air outlet, is used for detecting indoor temperature.
As shown in fig. 1 and 2, the left side area in the casing 1 is the air inlet cavity that communicates the air intake 11, the right side upper portion of the casing 1 is the air outlet cavity that communicates the air outlet 12, the right side lower part of the casing 1 is the heat recovery cavity that sets up the heat recovery device, the intercommunication of heat recovery cavity and air inlet cavity, the left side of air outlet cavity is adjacent with the air inlet cavity, the downside is adjacent with the heat recovery cavity, the valve setting of blast gate subassembly is on the inner wall between the adjacent cavity, be equipped with the wind gap that corresponds the valve on the inner wall of adjacent cavity, thereby accessible valve opens and shuts the wind gap and forms heat recovery wind channel and directly links the wind channel, avoid too big to the structural change of current new fan. Wind forms directly connecting the wind channel when air inlet cavity direct connection goes to the air-out cavity, and wind forms heat recovery wind channel when air inlet cavity, heat recovery cavity and air-out cavity.
The valve assembly includes: a first air valve actuator 21, a first link assembly and a first air valve 23; a second air valve actuator 31, a second linkage assembly and a second air valve 33. First blast gate executor 21 is installed on the inner wall on the left of casing 1, and its tip is equipped with the motor and can drives first link assembly, and first link assembly is connected with first blast gate 23, and first blast gate 23 sets up the first wind gap 13 department on the inner wall between air inlet cavity and the air-out cavity to the accessible control first blast gate executor 21 drives first blast gate 23 first wind gap 13 that opens and shuts. The second air valve actuator 31 is installed on the inner wall of the air outlet chamber, the end portion of the second air valve actuator 31 is provided with a motor which can drive a second connecting rod assembly, the second connecting rod assembly is connected with a second air valve 33, the second air valve 33 is arranged at the second air opening 14 on the inner wall between the heat recovery chamber and the air outlet chamber, and therefore the second air opening 14 can be opened and closed by controlling the second air valve actuator 31 to drive the second air valve 33.
The first link assembly includes: a first damper actuator link 221, a left link 222, a fixed pin 224, and a first intermediate link 223. One end of the first air valve actuator connecting rod 221 is connected to the motor of the first air valve actuator 21 and can rotate with the connecting end as a circle center, and the other end of the first air valve actuator connecting rod 221 is hinged to one end of the left connecting rod 222. The other end of the left connecting rod 222 is rotatably connected to the fixed pin 224, one end of a first middle connecting rod 223 is connected to the hinged end of the first air valve actuator 21 and the left connecting rod 222, the other end of the first middle connecting rod 223 is hinged to one side of the first air valve 23, and the other side of the first air valve 23 is hinged to the inner wall between the air inlet cavity and the air outlet cavity. The motor of the first air valve actuator 21 drives the first intermediate connecting rod 223 to operate, so that the first air valve 23 opens and closes the first air port 13.
The second link assembly includes: a second damper actuator link 321 and a second intermediate link 322. One end of the second air valve actuator connecting rod 321 is connected to the motor of the second air valve actuator 31, the other end of the second air valve actuator connecting rod 321 is hinged to one end of the second middle connecting rod 322, the other end of the second middle connecting rod 322 is hinged to one side of the second air valve 33, and the other side of the second air valve 33 is hinged to the inner wall between the heat recovery chamber and the air outlet chamber. So that the motor of the second air valve actuator 31 drives the second intermediate link 322 to drive the second air valve 33 to open and close the second air inlet 14.
In a specific control, when the controller controls the air valve assembly to be communicated with the heat recovery air duct, the first air valve 23 is controlled to close the first air port 13, and the second air valve 33 is controlled to open the second air port 14.
When the controller controls the air valve assembly to be communicated with the direct-connected air channel, the first air valve 23 is controlled to open the first air opening 13, and the second air valve 33 is controlled to close the second air opening 14.
As shown in fig. 3, when the indoor temperature is lower than the set temperature, it is determined whether the outdoor temperature is lower than the set temperature, and if so, the controller controls the air valve assembly to communicate with the heat recovery air duct. Because the optimum indoor temperature of the human body is about 22 ℃, the temperature T can be set according to the requirement. In winter, the northern weather is cold, and outdoor air is often below 0 ℃, and when indoor temperature was less than T ℃, indoor temperature need increase, needs heat recovery this time, first blast gate executor anticlockwise operation and second blast gate executor clockwise operation promptly to guarantee that indoor temperature can not become lower when new fan ventilates.
If not, the controller controls the air valve assembly to be communicated with the direct connection air channel. Because the optimum indoor temperature of the human body is about 22 ℃, the temperature T can be set as required. In winter, the northern weather is cold, and outdoor air is often below 0 ℃, and when indoor temperature was less than T ℃, indoor temperature need increase, needs heat recovery this time, first blast gate executor anticlockwise operation and second blast gate executor clockwise operation promptly to guarantee that indoor temperature can not become lower when new fan ventilates.
When the indoor temperature equals the set temperature, judge whether outdoor temperature equals the set temperature, if, the controller control blast gate subassembly intercommunication directly links the wind channel, and the three is balanced, does not need heat recovery, first blast gate executor clockwise operation and second blast gate executor anticlockwise operation promptly.
If not, namely the set temperature is less than or equal to the outdoor temperature, the controller controls the air valve assembly to be communicated with the heat recovery air channel. Indoor temperature does not need to be adjusted, and outdoor temperature is higher or lower, also needs heat recovery in this time, and first blast gate executor anticlockwise operation and second blast gate executor clockwise operate promptly to guarantee that indoor temperature can not become and receive outdoor temperature's influence and change rapidly when new fan ventilates.
When the indoor temperature is higher than the set temperature, whether the outdoor temperature is higher than the indoor temperature or not is judged, if yes, the controller controls the air valve assembly to be communicated with the heat recovery air channel, the indoor temperature needs to be reduced, and heat recovery is needed when the indoor temperature is reduced, namely the first air valve actuator rotates anticlockwise and the second air valve actuator rotates clockwise, so that outdoor gas is prevented from rapidly entering the room, and the indoor temperature is further increased.
If not, the indoor temperature is larger than or equal to the outdoor temperature, and the air valve assembly is controlled by the controller to be communicated with the direct connection air channel. At the moment, heat recovery is not needed, namely the first air valve actuator runs clockwise and the second air valve actuator runs anticlockwise, so that outdoor air can rapidly enter the room, the temperature of the indoor air is reduced, and the required temperature is reached.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A new fan, comprising: the casing sets up air intake and air outlet on the casing, sets up the heat recovery ware in the casing, communicates air intake and air outlet and through the heat recovery wind channel of heat recovery heat exchanger, its characterized in that still includes: the air conditioner comprises a direct-connection air channel communicated with an air inlet and an air outlet, an air valve assembly arranged on the direct-connection air channel and a heat recovery air channel, a temperature sensor group for detecting temperature, and a controller for controlling the air valve assembly to be communicated with the heat recovery air channel or the direct-connection air channel according to the temperature.
2. The new fan of claim 1, wherein the set of temperature sensors comprises: a first temperature sensor for detecting the outdoor temperature is arranged close to the air inlet, and a second temperature sensor for detecting the indoor temperature is arranged close to the air outlet.
3. The new fan of claim 1, wherein an outlet chamber is disposed in the housing and is in communication with the outlet, a heat recovery chamber is disposed adjacent to the outlet chamber and is provided with a heat recovery device, and an inlet chamber is disposed adjacent to the outlet chamber and is in communication with the inlet chamber and the outlet chamber, wherein the outlet chamber and the inlet chamber form a direct connection air channel when in direct communication, and the outlet chamber and the heat recovery chamber form a heat recovery air channel when in communication.
4. The fresh air machine as claimed in claim 3, wherein a first air port is provided on an inner wall between the air inlet chamber and the air outlet chamber, a second air port is provided on an inner wall between the heat recovery chamber and the air outlet chamber, and an air valve of the air valve assembly is disposed corresponding to the first and second air ports.
5. The fresh air machine as claimed in claim 4, wherein the damper assembly comprises: the first air valve actuator is arranged in the shell, the first connecting rod assembly is driven by the first air valve actuator, and the first air valve for opening and closing the first air port is driven by the first connecting rod assembly; and the second air valve actuator is fixed on the inner wall of the shell, the second connecting rod assembly is driven by the second air valve actuator, and the second air valve for opening and closing the second air port is driven by the second connecting rod assembly.
6. The fresh air machine of claim 4 wherein when the controller controls the damper assembly to communicate with the heat recovery duct, the first port is closed and the second port is open; when the controller controls the air valve assembly to be communicated with the direct connection air channel, the second air opening is closed, and the first air opening is opened.
7. The fresh air machine of claim 5 wherein the first link assembly comprises: the air valve actuator connecting rod is connected to the first air valve actuator and drives the first air valve actuator connecting rod to rotate through the air valve actuator, the first middle connecting rod is hinged to the first air valve actuator connecting rod at one end, the other end of the first middle connecting rod is hinged to one side of the first air valve, and the other side of the first air valve is hinged to the inner wall between the air inlet cavity and the air outlet cavity.
8. The new fan of claim 2, wherein when the indoor temperature is less than the set temperature, it is determined whether the outdoor temperature is less than the set temperature, if so, the controller controls the air valve assembly to communicate with the heat recovery air duct, and if not, the controller controls the air valve assembly to communicate with the direct connection air duct.
9. The new fan of claim 2, wherein when the indoor temperature is equal to the set temperature, determining whether the outdoor temperature is equal to the set temperature, if so, the controller controls the air valve assembly to be communicated with the direct connection air channel, and if not, the controller controls the air valve assembly to be communicated with the heat recovery air channel.
10. The new fan of claim 2, wherein when the indoor temperature is greater than the set temperature, it is determined whether the outdoor temperature is greater than the indoor temperature, if so, the controller controls the air valve assembly to communicate with the heat recovery air duct, and if not, the controller controls the air valve assembly to communicate with the direct connection air duct.
CN202010438101.2A 2020-05-21 2020-05-21 New fan Pending CN111578424A (en)

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CN202010438101.2A CN111578424A (en) 2020-05-21 2020-05-21 New fan

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Application publication date: 20200825