CN110214253A - Variable refrigerant cabinet - Google Patents
Variable refrigerant cabinet Download PDFInfo
- Publication number
- CN110214253A CN110214253A CN201780083974.2A CN201780083974A CN110214253A CN 110214253 A CN110214253 A CN 110214253A CN 201780083974 A CN201780083974 A CN 201780083974A CN 110214253 A CN110214253 A CN 110214253A
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- China
- Prior art keywords
- air
- ptac
- room
- evaporator
- condenser
- 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.)
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
-
- 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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/03—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by mounting arrangements
- F24F1/031—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by mounting arrangements penetrating a wall or window
-
- 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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
- F24F1/035—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air characterised by the mounting or arrangement of filters
-
- 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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0358—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with dehumidification means
-
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/04—Air-mixing units
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Central Air Conditioning (AREA)
Abstract
Show that a kind of variable refrigerant cabinet air regulator, the variable refrigerant cabinet air regulator are easily mounted in the neotectonics with unique pedestal, the pedestal causes the collected mixture overflowed to be discharged into outside building.Show the control system with motor and compressor, the motor and compressor pulse width-modulated change the air regulator can while maintaining highest possible power factor ad infinitum.When outside air is mixed with inner air, dehumidify to outside air.By moving closer to temperature set-point and carrying out reheating even after dehumidifying, the moisture in room can be removed.Also show that snorkel, the snorkel delivering fresh air are mixed to enter air with inside before evaporator to realize maximum dehumidifying.
Description
The cross reference of related application
Present application is based on No. 15/380,178 U.S. patent application case filed an application on December 16th, 2016
International application case (PCT), the U.S. patent application case are the 14/975th, No. 166 beauty filed an application on December 18th, 2015
The part connecting case of state's patent application case.
Technical field
The present invention relates to variable refrigerant cabinet (VRP), and more particularly, are related to being added to air through adjusting room
The cabinet type terminal air adjuster of outside air dehumidifying, the outside air are added by noise reduction snorkel.
Background technique
Cabinet type terminal air adjuster (PTAC) and vertical chamber air conditioner (VPAC) are common in hotel or hotel
Independent heating and air handling system type.Most of PTAC and VPAC unit is designed to by equal inside and out
Wall with ventilation opening and/or radiating piece.Although PTAC and VPAC is commonly used in that single living space is heated or cooled,
But exists and only carry out cooling PTAC and/or VPAC with external heating source.On some PTAC/VPAC, do not need to condense
Object discharge pipe line, this is because the condensed water that evaporator coil is extracted from air throws condenser coil surface by condenser fan
On, condensed water evaporates on condenser coil surface.There is still a need for installation condensate discharge lines by conventional PTAC/VPAC.
Such as the wall-penetrating type unit of PTAC/VPAC has some basic problems.Wall-penetrating type unit can make wherein positive regulator empty
The space of gas is stuffy.If regulation is aerated to being conditioned space, moisture can be introduced into and be conditioned in space.It lifts
For example, in coastal area, hotel/hotel often has musty due to moisture.Problem is that the unit runing time falls short of
And the moisture being conditioned in space is not can be removed.However, building code requirement is conditioned the ventilation in region, PTAC/VPAC is mono-
Member is generally not provided this.
Although having been carried out various trials to reduce the moisture for being conditioned space interior, such trial usually requires to remove
Ancillary equipment or system except PTAC/VPAC unit.It is some to attempt to need to be necessarily connected to individually removing for building delivery pipe
Wet device.Other trial needs, which force, individually to be entered through dehumidified air through adjusting space.Each of these systems otherwise be responsible for,
It is expensive or can not suitably work.
Normal air adjuster only makes a response the temperature of space interior when cooling down to particular space.Once full
The temperature in sufficient space, active cooling and dehumidifying to space just stop.Moisture in space persistently aggravates.Hotel/hotel industry
In once used to solve dehumidify and divulge information a solution be by pipeline engineering will through dehumidifying external source of air connect
It is connected to enclosure space.The outside air that dehumidified is forced past pipeline engineering and enters room.By forcing through the outside air that dehumidifies
Into be conditioned room and caused by increase pressure by release point and escape, such as near entry door and pass through room row
Port and escape.However, the method needs to run extra ducts engineering and removes the moisture in outside air by dehumidifier.
Once another common methods used are that have inside PTAC unit through opening to allow what outside air came in turn over
Plate.However, outside air is not dehumidified, this will increase the moisture in space and repeatedly will cause musty in portion in the room.?
After inspection, outside air turnover panel is repeatedly simply closed with bolt.
Another version of room air conditioner is referred to as variable refrigerant running system (VRF).Those systems have
Greatly outdoor condenser and multiple indoor evaporators, wherein refrigerant line is extended to each cooled space.Nevertheless,
The problem of variable refrigerant running system still has high moisture and lacks available vent air.
Summary of the invention
A target of the invention is to provide variable refrigerant cabinet (VRP).
Effective dehumidifying that it is a further object of this invention to use variable refrigerant cabinet to provide to space is conditioned.
Another target of the invention is to provide variable but stable power for the power consumption component of variable refrigerant cabinet.
Another target of the invention is the outside for installing contractor when building hotel/hotel for variable refrigerant cabinet
Connection, so that the mountable variable refrigerant cabinet of non-technical personnel is to provide the cooling to enclosure space.
It is a further object of this invention to provide new pedestal for variable refrigerant cabinet.
Another target of the invention is to provide control system for variable refrigerant cabinet, this control system can be in confined space
The air in portion dehumidifies.
Another target of the invention be before the air that outside air is added in enclosure space to outside air into
Row dehumidifying.
Another target of the invention is the power of compressor and/or fan that modulation is supplied to variable refrigerant cabinet.
It is a further object of this invention to be modulated to compressor and motor contained in variable refrigerant cabinet using pulse width,
The modulation of this pulse width for slowly make variable refrigerant cabinet slowly reach the internal temperature that is set in room sensor with
Allow to increase the dehumidifying to inner air.
Another target of the invention is to provide reheat system to provide additional dehumidifying by evaporator.
It is a further object of this invention to actively control the power factor of variable refrigerant cabinet to reduce power consumption.
It is a further object of this invention to reduce to pass to while dehumidifying to the outside air for being introduced into adjusting space
Adjust the external noise amount in space.
Detailed description of the invention
Fig. 1 illustrates the variable refrigerant cabinet being fitted in inside closet.
Fig. 2 is to show how to install collection chamber in tape frame (but unclosed) closet for receiving variable refrigerant cabinet
And the decomposition perspective view of pedestal.
Fig. 3 is to show how the exploded perspective view being embedded into variable refrigerant cabinet in tape frame (but unclosed) closet
Solution.
Fig. 4 is the decomposition perspective view of variable refrigerant cabinet.
Fig. 5 is the sectional view for illustrating the air flowing in variable refrigerant cabinet.
Fig. 6 is illustrated how to the Fig. 5 to dehumidify into the outside air for being conditioned room through amplifier section
Sectional view.
Fig. 7 A and 7B are the three-dimensional block diagrams of the control piece for variable refrigerant cabinet.
Fig. 8 A and 8B are the extended block diagrams of the electric machine control system shown in Fig. 7 B.
Fig. 9 is the extended block diagram of the PFC shown in Fig. 8 A.
Figure 10 is the decomposition perspective view for the pedestal of variable refrigerant cabinet.
Figure 11 shows the substitution perspective view for the three different pedestals that can be used together from variable refrigerant cabinet.
Figure 12 is the level cross-sectionn figure of alternate embodiment of the invention.
Figure 13 is the vertical cross-section diagram of the alternate embodiment shown in Figure 12.
Specific embodiment
The preferred embodiment of the present invention will be provided below in association with the diagram shown in attached drawing.It shows and is mounted in Fig. 1
The variable refrigerant cabinet 21 in closet 23 formed by the frame 25 on the ground 27 in space to be cooled.Frame 25 extends to cold
But the outside 29 in space.For diagram purpose, the sheetrock for frame 25 or other covering materials have been removed.
The pedestal 31 for being placed with variable refrigerant cabinet 21 above is installed inside closet 23.Pipeline adapter 33 is close to closet 23
Top and install with the top for being connected to variable refrigerant cabinet 21 so as to will through adjust air be directed to desired locations.It can
Variable refrigerant cabinet 21 is embedded into closet 23 by door opening 35.
Referring now to Figure 2, having removed variable refrigeration cabinet 21.During building hotel/hotel contractor construction closet 23,
Collection chamber 37 is installed, the collection chamber, which has, to be stretched to the interior wall collection chamber 39 inside exterior wall collection chamber 41.Interior wall collection chamber 39
And the low portion of both exterior wall collection chambers 41 downwardly external 29 tilts.Collection chamber separation baffles 43 are located at interior wall gas collection
Inside room 39 and exterior wall collection chamber 41.Collection chamber 37 extends to inside closet 23 from outside 29.Due to the flexible spy of collection chamber 37
Sign, is suitable for the varying width of exterior wall 45, representative width is between 4 to 8 inches.Outdoor shutter grid 47 covers collection chamber 37
External hole.Outdoor shutter grid 47 has the blinds 49 that tilts down in order to avoid rainwater passes through collection chamber 37 and enters.
In addition to passing through exterior wall 45 and installing collection chamber 37, building hotel/hotel contractor will also be inside closet 23
Mounting seat 31.The outer portion of pedestal 31 by a manner of as will be described later on the inner lower edge of interior wall collection chamber 39
Fang Yanshen.
It is contacted to provide with the excellent sealing of variable refrigeration cabinet 21 (demonstrated in Figure 1), collection chamber washer 51 is located in
On 39 inside of interior wall collection chamber.For the bottom for sealing variable refrigeration cabinet 21, back seat gasket is provided on the top edge of pedestal 31
53。
In Fig. 3, variable refrigeration cabinet 21 is mounted on inside closet 23 by diagram illustrating.Variable refrigeration cabinet 21 passes through door opening 35
And it is embedded in.Mounting rail 55 is installed in slide in the groove in the top of pedestal 31 on the bottom of variable refrigeration cabinet 21, until
Variable refrigeration cabinet 21 slides through collection chamber washer 51 and is pressed on collection chamber washer 51 to provide collection chamber 37 and variable refrigeration
Excellent sealing between cabinet 21.The bottom of variable refrigeration cabinet 21 is shelved on back seat gasket 53.It is in suitable in variable refrigeration cabinet 21
After position, pipeline adapter 33 is moved down to close supply line flange 57.
Although not showing in Fig. 1 to 3, closet 23 will connect electric power by contractor, so that can be inserted into variable refrigerant cabinet
With power supply.In addition, being provided with the connection (not shown) towards room sensor in closet 23.By in the door opening 35 of closet 23
Installation return air door 59 is simultaneously inserted into power supply and room sensor, gets out variable refrigerant cabinet 21 as show in Figure 3
It is operated.The installation of variable refrigerant cabinet 21 can be completed by layman.
Fig. 4 shows the decomposition perspective view of the mechanical part of variable refrigerant cabinet 21.Condenser base sub-assembly 61 is at its bottom
There is discharge pallet 63, discharge pallet 63 is shelved on pedestal 65 in portion.Mounting rail 55 is located at 65 lower section of pedestal.Compressor 67 is put
It sets on the discharge pallet 63 supported by pedestal 65.
Corner post 69 is upwardly extended from pedestal 65.Condenser overhead lid 71 is located on the top of corner post 69.Fresh air module
73 are connected to the bottom side of condenser overhead lid 71, discuss fresh air module 73 in greater detail below.Control cabinet 75 is located at corner post
Between 69.Case lid 77 is controlled adjacent to control cabinet 75.Condenser inspection door panel 79 is located at 77 lower section of control case lid.Lower 81 envelope of side cover
Close the side of condenser base sub-assembly 61.Upper side cover 83 closes the upside of variable refrigeration cabinet 21.Back into variable refrigerant cabinet
21 any return air has to pass through return air filter 85 and enters.
Condenser 87 and condenser shroud 89 are located in condenser base sub-assembly 61.Condenser fan sub-assembly 91 is located at
In condenser shroud 89 and air is blown across condenser 87.Condenser discharge disk 93 will be collected and be arranged from condenser 87 or evaporator
Any moisture of 103 drippage of sale at reduced prices.Reversed valve assembly 95 is located at 67 top of compressor.
Insulation board 97 is located at 71 top of condenser overhead lid, and insulation board 97 is installed in condenser overhead lid 71 and evaporator bottom
Between seat 99.Evaporator 101 is located at 99 top of evaporator pedestal, wherein has evaporator discharge plate 103 below evaporator 101.
Evaporator discharge pipe 105 is connected to the bottom of variable refrigeration cabinet 21 from evaporator discharge plate 103.
For air is drawn through evaporator 101, air-supply machine assemblies 107 are aspirated by air blower inlet panel 109
Air.Electric heater 111 is between air blower inlet panel 109 and evaporator 101.Heater inspection door panel 113 allows
Into electric heater 111.
It is adjusted air and is flowing through evaporator 101, electric heater 111, air blower inlet panel 109 and air-supply unit
By the way that such as previously supply line flange 57 described in conjunction with Figure 3 leaves after component 107.Reheating coil pipe 115 is located at evaporation
Behind device 101.
Referring now to Figure 5, showing the elevation cross-sectional view of variable refrigerant cabinet 21.It will use in Fig. 5 and be arrived with applied to Fig. 1
Previous building block described in 4 is identically numbered.Air-supply machine assemblies 107 make the indoor air that enters across return air mistake
Filter 85, evaporator coil 101, reheating coil pipe 115 simultaneously come out from air blower inlet panel 109 to leave air in generating chamber.
Collected any moisture is discharged by evaporator discharge pipe 105.
For condenser fan sub-assembly 91 by entering air outside 117 suction chamber of outdoor air inlet, wherein most is empty
Gas is blown out by condenser shroud 89 and by condenser 87 to leave air outside generating chamber.The flowing of outdoor air is control
Case 75 provides cooling and removes heat from condenser 87.
A small amount of outdoor, which enters air, can flow through fresh air module 73.Rectangle hole in evaporator pedestal 99
121 and honeycomb hole 119 (see Fig. 4) allow fresh air flow pass through.Fresh air flow to steaming from honeycomb hole 119
Send out the entrance side of device 101.Therefore, the excess humidity in fresh air can with fresh air flow pass through evaporator 101 and by
Removal.To ensure that the fresh air of appropriate amount is sucked into cooled space, each of fresh air module 73 is at it
Inside has fan to control the flowing of fresh air, such as describes in greater detail below.Evaporator 101 to pass through fresh air mould
Block 73 and enter fresh air cooled down and dehumidified.Fresh air with interior enter air mix, using evaporator 101 and
Cooling and dehumidifying, any of them moisture are collected by evaporator discharge panel 103 and are discharged from evaporator discharge pipe 105.
During the heating mode of variable refrigerant cabinet 21, electric heater 111 can be connected to enter air to interior and carry out
Heating.If necessary to remove the moisture in fresh air, then by the operation of evaporator 101 at being just enough to remove moisture.Reheating
Any reheating needed for due to coil pipe 115 will provide the operation because of evaporator 101 when removing moisture.
Combined reference Fig. 5 and 6, Fig. 6 show one of fresh air module 73 through amplifying cross-sectional view.Fresh air
Module 73 has the outdoor air fan 123 for drawing air into fresh air room 125.Outdoor air fan 123 has
There are the shell, flabellum and motor very similar to computer pattern fan.Fresh air flows through outdoor from fresh air room 125
Air filter 127.Rectangle hole 121 and honeycomb hole 119 allow some outdoor air that enter to exist with the indoor air that enters
It is mixed before evaporator coil 101.Then outdoor is entered arriving through combined air flow adjusting for air into air and interior can
Any condition that variable refrigerant cabinet 21 is set.It can be cooled, dehumidify or heat through mixing air.If be dehumidified, steam
Hair device discharge plate 103 will collect moisture, and then (see Fig. 4 and 6) is discharged from evaporator discharge pipe 105 in the moisture.Into
Air is filtered by outdoor air filter 127 through adjusting any air in space, or is refluxed air filtration in recycling
Device 85 filters.
Conventional air adjuster only controls the temperature in cooled space.Conventional air adjuster is based on being conditioned space interior
Temperature set-point and turn on and off.The possible runing time of conventional air adjuster falls short of and not can be removed the tide in space
Gas.Most of conventional air adjuster not makes fresh air enter cooled space.Fresh air is needed to exhale for occupant
It inhales and expels noxious fume, and enter oxygen and be conditioned space.
The present invention makes fresh air entrance be conditioned space and the complex control system by coordinating motor and compressor
Variable refrigerant cabinet 21 is allowed to run the longer time, so that variable refrigerant cabinet 21 will more dehumidify to air.With
It is conditioned space and becomes closer to preferred temperature, motor and compressor are decelerated operation, so that unit will run the longer time and come
It dehumidifies to space is conditioned.
Variable refrigerant cabinet 21 is changed by two kinds of distinct methods to be allowed to cool the ability of enclosure space.First
In kind of method, variable refrigerant cabinet 21 is by occurring the speed of motor or compressor when being conditioned space close to preferred temperature
Change and reduces its capacity or cooling capacity.Second method is some reheating amount add-backs that will be provided by reheater coil 115
To cooled space.In reheating method, allows 101 continuous service of evaporator and remove the moisture in air, but then pass through
Reheater coil 115 is by heat add-back.In this method, it initiatively dehumidifies to being conditioned space.
The automatically controlled product for being used for variable refrigerant cabinet 21 is illustrated in Fig. 7.129 (commonly referred to as temperature control of Wall control
Device) setting enclosure space inside preferred temperature.Wall control 129 can be communicated by external communication module 131.In addition,
The operating parameter of variable refrigerant cabinet 21 is set using SD card 133.Wall control 129 is communicated with master controller 135.It is main
Controller 135 has the Wall control communication 137 for communicating with Wall control 129.Master controller 135 has processor
136, the ephemeral data in processor 136 can be programmed by data exchange unit 138.
Master controller 135 is communicated via MCS communication 141 with electric machine control system 139.In addition, master controller 135 is via adding
Hot device communication 145 is communicated with heating plate 143.Master controller 135 can be described as master unit, wherein having the electricity for being referred to as slave unit
Machine control system 139 and/or heating plate 143.Electric machine control system 139 and heating plate 143 are both received from master controller
The order of processor 136 in 135.If detecting problem in electric machine control system 139 or heating plate 143, pass through
Master controller 135 and pass message back and show the message on Wall control 129.Wall control 129 can be with master control
Device 135 processed receives order to and fro or sends order, and has external communication module 131.
Master controller 135 has the usb 1 47 for communicating with personal computer 149.Personal computer 149 can be through
Programming is setting the data point in master controller 135, retrieval data, sending order or remotely controlling entire variable refrigerant cabinet
21.In addition, personal computer 149 can be used for monitoring control test to ensure that variable refrigerant cabinet 21 suitably operates.In individual
Any history of errors in master controller 135 can be downloaded and observed in computer 149.Personal computer 149 can be used for checking master
The failure of software in controller 135 makes software upgrading in master controller 135.It can be changed by personal computer 149
The parameter set in master controller 135.
Inside electric machine control system 139, the fan drives 153 of the control operation indoor fan 155 of processor 151.It is logical
It crosses as indoor fan 155 provides pulse width modulation and controls the speed of indoor fan 155 and the power of indoor fan 155 disappears
Consumption.In addition, processor 151 controls the fan drives 157 of outdoor fan 159.It is shown in indoor fan 155 and Fig. 4 and 5
Machine assemblies 107 of blowing are identical.The condenser fan sub-assembly 91 shown in outdoor fan 159 and Fig. 4 and 5 is identical.
Processor 161 inside electric machine control system 139 operates compressor drive 163, and compressor drive 163 is grasped again
Make compressor 67.By the pulse width modulation from processor 161, compressor 67 can be made via compressor drive 163
Velocity variations.
External power is fed to electric supply 169 by power input lines 165 and fuse 167.Electric supply
There is PFC in 169, will such as be described later in conjunction with Fig. 8 and 9.
Can not will likely have the maintenance personal that variable refrigerant cabinet 21 is operated to by usb 1 47
The personal computer 149 of connection.Therefore it provides SD socket 171 is to receive SD card 173.SD card 173 can be used for making master controller
Program or firmware upgrade inside 135.It can be changed in addition, SD card 173 can be used for checking the failure of variable refrigerant cabinet 21 or downloading
The operation history of refrigerant cabinet 21.SD card 173 can also provide extra memory for master controller 135.
Electric machine control system 139 can have the SD card 175 of their own.By in master controller 135 have SD card 173 and
There is SD card 175 in electric machine control system 139, provide extra memory for remote upgrade.If electric machine control system 139 is just
Upgrade according to Wall control 129, then needing to install SD card 175 with work while upgrading electric machine control system 139
Memory space is provided for temporary storage.Similarly, for by Wall control 129 make master controller 135 upgrade, it is necessary to install
SD card 173 is to provide temporary storage storage.
Master controller 135 also controls the stepper drive 177 of operation electric expansion valve 179.Electric expansion valve 179 controls
Flowing of the refrigerant in internal system.The operation of electric expansion valve 179 is by the temperature for entering evaporator 101 and enters compressor 67
The temperature of (see Fig. 5) controls.Electric expansion valve 179 is opened or closed to maintain between evaporator inlet and suction port of compressor
A certain temperature range.Electric expansion valve 179 is similar to modulation valve and acts on.
As operation indoor fan 155 electric machine control system 139 alternative solution, can be by master controller 135 inside
Motor control part 183 to indoor fan 181 carry out pulse width modulation.
The excitation of heating plate 143 and deactivation reversing valve 185.Assuming that variable refrigerant cabinet 21 has been in refrigerating mode and has been cut
Heating mode is changed to, master controller 135 will cause heating plate 143 to switch reversing valve 185.Master controller 135 and heating plate 143 it
Between communication provided and communicating 145 with the heater of microcontroller 187.It is sent signal to reversely from microcontroller 187
Valve triac 189 is to switch reversed valve relay 191.Workable microcontroller 187 is Freescale public affairs
Take charge of the KL02 of (Freescale).
Since microcontroller 187 provides pulse width modulation, zero-crossing detector 193 knows microcontroller 187
The time that alternating current provided in power input lines 165 intersects with zero axle.If necessary to heat, then microcontroller
187 switch the heater relay 195 for controlling heater 199 and 201 respectively by heater relay driver 194 is operated
And/or 197.Heater silicon controlled rectifier (SCR) 203 completes the circuit of heater 199 and/or 201, and is grasped by microcontroller 187
Make.3.3 volts of voltage-stablizers 192 are provided with inside heating plate 143.
It is 205 and+5 volt regular guest 207 of+3.3 volt voltage-stablizer inside master controller 135.By the several of variable refrigerant cabinet 21
A temperature sensor 209 is fed in microcontroller 135.
Fig. 8 is to electric machine control system 139 deeper into comment.(it can be from from alternating current source 211 for power input lines 165
180 volts to 293 volts AC variations) it is connected in electric machine control system 139.Interlock active power factor correction being connected to two-phase
Before 215, alternating current source 211 is fed by electromagnetic interface filter 213.Two-phase interlocks active power factor correction 215 with current sense
Device 217 and voltage sensor 219.Using current sensor 217 and voltage sensor 219, the function being consumed can be continuously determined
Rate.
Interlock active power factor correction 215 from two-phase, generates 430 volts of DC buses 221.From 430 volts of DC buses 221, warp
Isolation secondary electrical supply device 223 generates+12 volt DC under 2.5 amperes.
The inside of electric machine control system 139 is the processor 161 as previously Fig. 7 combined to be illustrated.Processor 161 passes through pressure
Contracting machine driver 163 and control compressor electric motor 67.D/C voltage is supplied to compressor drive 163 by 430 volts of DC buses 221.
Processor 151 controls outdoor fan motor 159 by outdoor fan driver 157 and is driven by indoor fan
Device 153 and control indoor fan motor 155.Processor 151 is that outdoor fan motor 159 mentions via outdoor fan driver 157
For pulse width-modulated electric power.Similarly, processor 151 via indoor fan driver 153 be indoor fan 155 provide through
Pulse width modulation power.
Electric machine control system 139 demonstrated in Figure 8, which has, partly to be mentioned by the two-phase active power factor correction 215 that interlocks
The active power factor correction of confession.
Through compressor drive 163 out of, processor 161 is delivered to compressor electric motor 67 signal sensing compressor 67
The rotor-position in portion.It is chopped into from 430 volts of 221 received signals of DC bus and is converted into being simulated three-phase AC signal so that compression
The motor shaft of machine 67 is rotated with expected rate.Outdoor fan driver 157 for outdoor fan motor 159 passes through from 430 volts
DC bus 221 obtain signal, by the signal copped wave and for outdoor fan motor 159 provide through simulation three-phase AC current and it is basic
It is upper equally to be acted.Similarly, indoor fan driver 153 is basically carried out same movement to indoor fan motor 155.When
When compressor drive 163 is controlled by processor 161, outdoor fan driver 157 and indoor fan driver 153 are also subject to processing
Device 151 controls.
Bias power power supply unit 225 receives the voltage from 430 volts of DC buses 221 and+15 volt volt DC of DC and+3.3 of generation,
This is used to supply electric power to any part for needing those voltage levels of variable refrigerant cabinet 21.+ 3.3 volt DC are for operating
Processor 161 and processor 151.
All adjustings for the electric power for being received and being converted into DC signal are completed inside electric machine control system 139.?
Bias power power supply unit 225 generates+15 volts and when+3.3 volt, multiplexer 227 have through isolation RS-485 duplexer 229 with
For being connected to external equipment.External equipment can be similar to personal computer 149 demonstrated in Figure 7.It is bis- through isolation RS-485
Work device 229 allows the external connection and control to electric machine control system 139.It may be connected in addition, electric machine control system 139 has
Miniature SD card 175 through be isolated serial peripheral interface 231.SD card 175 can be used for updating electric machine control system 139, check mistake
Message and information is exchanged with electric machine control system 139.
Electric machine control system 139 is the place for completing all electrical power conversions.This is the whole positions of driver 163,157 and 153
In place.This is the place that regulated power supply is generated from the non-source of stable pressure of height.
When variable refrigerant cabinet 21 turns off so that alternating current source 211 is no longer connected to two-phase and is interleaved with by electromagnetic interface filter 213
When function PFC 215, inductive or capacitive charge can be still kept in circuit.Leadage circuit 220, inductive are provided
And/or capacitive charge can be emptied by leadage circuit 220.Holding is lit by LED 222, until under leadage circuit 220
Until dropping to scheduled current or less.
Turning now to Fig. 9, show that two-phase is interlocked the schematic diagram of active power factor correction 215.Alternating current source 211 passes through EMI
Filter 213 is fed to two-phase and interlocks active power factor correction 215.Interlock in active power factor correction 215 in two-phase, hands over
Galvanic electricity stream changes into rectified AC signal by full-wave rectifier 301.Rectified AC signal from full-wave rectifier 301 passes through electricity
Sensor 303 and 305 is fed.Inductor 303 and 305 is connected respectively to current sensor 307 and 309.Each current sensor 307
And 309 be connected respectively to MOSFET 311 and 313.
The resistor network of staggered active 215 front PFC N is resistor 315 and 317.When resistor 315 and 317 exists
Two-phase interlocks active 215 front end PFC when providing sensing, and resistor 319 and 321 provides feedback 323 to controller 325.Control
Device 325 also receives the current sense 327 from current sensor 307 and the current sense from current sensor 309 respectively
329.In addition, controller 325 receives the input voltage 333 crossing over input resistor 315 and 317 and generating.
Diode 335,337 and 339 ensures that electric current only flow to capacitor 341 in one direction.
325 monitoring input voltage 333 of controller, feedback voltage 323 and current sense 327 and 329 are to decide whether to need
Want correcting power factors.Controller 325 controls each of MOSFET 311 and/or 313 and is actuated to obtain maximum power
The point of factor.Maximum power factor is when electric current and voltage are either in phase with one another.It can control this of the starting of MOSFET 311 and 313
The example of controller 325 is the UCC-2807 component of Texas Instruments.
Controller 325 just obtaining feedback voltage 323 and input voltage 333 and by feedback voltage 323 and input voltage 333 with
Current sense 327 and 329 is compared, and starts MOSFET 311 and 313 to obtain the power factor as close possible to 1.
" power factor " in AC electric system is the ratio for the apparent energy flowing in the actual power and circuit of load
Rate.Power factor less than 1 means voltage and current waveform difference phase.Actual power is for executing work in specific time
The ability of circuit.Apparent energy is the product of the current loading of circuit.In the power system, the load with low power factor is taken out
Suction electric currents more more than the load with High Power Factor.Higher electric current will increase the energy loss in system.System of the present invention
System uses the active power factor for being built in the power consumption part of variable refrigerant cabinet 21.Interlock active power factor in two-phase
In correction 215, there are continuous " the rising and falling (ebb-and-flow) " of reactant (capacitive character and inductive).Power factor will continue
Change, unless in the presence of the correction to power factor.The present invention is interlocked active factor correcting 215 using two-phase, but can be used single-phase
Or other multiple phase configurations.
In Fig. 9, obtain from the received non-pressure stabilizing AC voltage of alternating current source 211, and supplied by using through switch mode electric power
It answers device and the voltage is converted into pressure stabilizing DC output voltage.Although AC voltage can change in broad range, D/C voltage is
Pressure stabilizing.For example, AC voltage can change from 180 volts of AC to 293 volts of AC, but DC bus will be maintained in 430 volts of DC.
With reference to Figure 10, and show the decomposition perspective view of pedestal 31.Pedestal 31 has 257 at the top of relatively thin duroplasts.Firmly
Plastic top 257 at left and right sides of it on be formed with rib 259.The rib is 257 at the top of the duroplasts of pedestal 31
Determine a channel 261 in every side upper bound.
Discharge recessed area 263 is provided in interior groove 265, and interior groove 265 is provided in inside the rib shape seat 267 of protuberance.It is internal
One end of slot 165 provides outdoor discharge outlet 269.The top of the ring support 267 of protuberance is sealed to variable refrigeration by chassis sealing element 271
The bottom side of agent cabinet 21.
Bottom cover 273 is located on the bottom side of pedestal 31.Three-way piece 275 be located at the top of bottom cover 273 and duroplasts 257 it
Between, three-way piece 275 is connected to the discharge orifice of discharge recessed area 263 via the discharge connecting line 279 for being connected to positioning ring 281
277.The downside that building discharge pipe 283 (a), 283 (b) and 283 (c) are connected to three-way piece 275.Building discharge pipe
283 secure to slit 285 (a), in 285 (b) and 285 (c) by positioning ring 287 (a), 287 (b) and 287 (c) respectively respectively.
The end of filler discharge pipe 283 is respectively by end cap 289 (a), 289 (b) and 289 (c) temporary sealings.
In assembling, two parts expanded foam is injected by duroplasts top 257 and bottom cover 273 by injection port 291
Between, until a part of two parts expanded foam is until each of outlet port 293 place is visible.Two parts expansion bubble
Foam (not shown) imparts 31 rigidity of pedestal, so that pedestal 31 can support variable refrigerant cabinet 21.
During installation, mounting rail 55 (see Fig. 3) will be shelved on inside channel 261.In mounting seat 31, remove to building
The end cap 289 (a) of object exhaust system most convenient, 289 (b) or 289 (c), and by appropriate building discharge pipe 283 (a), 283
(b) or 283 (c) are connected to building exhaust system (not shown).By being discharged into discharge recessed area 263 in three sides of pedestal 31
Any one, construction team is more convenient to be connected to building exhaust system.
If building exhaust system is blocked, outdoor discharge outlet 269 extends across the internal edge of collection chamber 37,
So that any accumulated moisture is discharged into outside building.Hereafter, it is flow to if maintenance personal sees across collection chamber 37
Emission outside building, then the exhaust system for knowing that particular room is blocked and needs to carry out clear by maintenance personal
Reason.However, will not be damaged to room inside.
When installing variable refrigerant cabinet 21, recess 295 is provided in the rib shape seat 267 of protuberance.This recess 295 allows to steam
The lower end of hair device discharge pipe 105 passes through it during installation and moves, until the lower end of evaporator discharge pipe 105 is lucky
Until above discharge recessed area 263.After variable refrigerant cabinet 21 is installed, piece of foam can be placed in recess 295
Portion.
Since hotel/accommodation can be different, the shape of pedestal 31 can need to be different to accumulate and be located at closet
23 it is not ipsilateral on different collection chambers 37 and door opening 35.With reference to Figure 11, the pedestal 31 in Figure 11 (a) is straight mounting seat.
Figure 11 (b) is right mounting seat 297.Figure 11 (c) is left mounting seat 299.If normal discharge route is blocked, pedestal
31, each of 297 and 299 allow water to enter to be discharged into outside building.In construction, contractor will use decision
The pedestal 31,297 or 299 of which pattern.
Many hotel/hotels are located at high moisture area, such as coastal, these hotel/hotels use cabinet type terminal air tune
It saves device (PTAC).Standard PTAC unit is 42 inches wide and 16 inches of height.Depth might have a degree of change.
Combined reference Figure 12 and 13 illustrates the PTAC unit 400 for introducing fresh air.Assuming that at PTAC unit 400
In refrigerating mode, draw outside is entered air across condenser 404 by condenser fan 402.As shown in Figure 12, outside is left
Air can pass through condenser 404 before being discharged to atmosphere.
Meanwhile the internal air that enters is passed through into the mixing chamber that return air filter 406 is drawn into 410 front of evaporator
408.Fresh air fan 412 aspirates some outsides from external air chamber 414 and enters air across dividing wall 422, and forces new
Fresh air passes through snorkel 416 and reaches mixing chamber 408.
Inside mixing chamber 408, fresh air mixes into air with interior and is drawn through evaporator by pressure fan 418
410.Interior, which is combined to produce, into air through mixing fresh air and interior leaves air.
Fresh air filter 420 removes any particle that may be present in fresh air inside snorkel 416.It is logical
Acoustic material is lined with inside tracheae 416 in order to avoid the sound outside hotel/accommodation passes to inside hotel/accommodation.
It flows through the volume of the fresh air of the snorkel 416 in PTAC unit 400 and enters air about to be outdoor
5% to 10%, this is about 30 to 50 cubic feet/minutes (CFM).
It is mixed by making fresh air pass through mixing chamber 408 and fresh air is entered air with interior, evaporation can be used
The entire capacity of device 410 is introduced into the moisture in the fresh air being conditioned in space in removing.By using evaporator 410
Entire capacity remove moisture, can eliminate the indoor musty occurred in coastal many hotel/accommodations.By reducing wine
Moisture inside shop/accommodation, can eliminate the growth of mould and therefore eliminate is commonly referred to as the mould of " Cure of Sick Building Syndrome "
Taste.
It is further dehumidified if necessary to PTAC unit 400 using the additional runing time of technology described herein,
Such technology so can be used in PTAC unit 400.
By having the pipeline engineering shape in ventilation tube shape between fresh air fan 212 to mixing chamber 408,
The noise occurred outside hotel/accommodation does not reach internal directapath.In addition, by being lined with snorkel 416
Acoustic material can assist in ensuring that declining for any external noise that may be passed to inside hotel/accommodation by snorkel 416
Subtract.
In addition to fresh air fan 412 and snorkel 416, alternate embodiment can also have any additional features,
Such as infinite variable speed and reheating described above.
By reducing the moisture inside hotel/accommodation, especially in high moisture area, between the overhauling of room when
Between the period can be extended because eliminating or reducing Cure of Sick Building Syndrome.
Claims (7)
1. a kind of for heating/cabinet type terminal air adjuster the PTAC of cool room, the PTAC extends through the room
Exterior wall, the PTAC have heat cycles and cooling cycle, during the cooling cycle, the PTAC is included
Condenser；
Condenser fan is used to draw outside air into external air chamber and major part is discharged by the condenser
The outside air；
Evaporator；
Pressure fan is used to aspirate room air across return air filter；
Compressor passes through its positioned at the condenser to be connected in the refrigerant lines of the evaporator with compression flow
Refrigerant；
Reversed valve assembly is located in the refrigerant lines, for keeping the flow direction of the refrigerant reversed；
Dividing wall separates outside air and the room air；
Improvement includes:
Mixing chamber is located at behind the return air filter and before the evaporator；
Fresh air fan aspirates the outside air from the external air chamber by the hole in the dividing wall
A part；
The hole is connected to the mixing chamber by snorkel；
Fresh air filter is located in the snorkel with the part for filtering the outside air；
The fresh air fan forces the described of the outside air to partially pass through the snorkel and the fresh air mistake
Filter enters the mixing chamber, and the pressure fan moves through the room air mixed with the part of the outside air
The evaporator is discharged in the room for subsequent, and the evaporator dehumidifies to the mixing air.
2. it is according to claim 1 for heating/the PTAC of cool room, wherein the snorkel has sound inside it
Sound absorbing material.
3. it is according to claim 2 for heating/the PTAC of cool room, wherein described be partially interposed in into the outside
Between 5% to the 10% of the outside air of air chamber.
4. it is according to claim 3 for heating/the PTAC of cool room, wherein the condenser fan and the air-supply
The speed of machine is variable to help to carry out the dehumidifying to the mixing air.
5. according to claim 4 for heating/the PTAC of cool room, some of heats are added back to the mixing
Air is to help to carry out the dehumidifying.
6. it is according to claim 5 for heating/the PTAC of cool room, wherein passing through the moisture of the dehumidifying removal
It is eliminated from the room.
7. it is according to claim 6 for heating/the PTAC of cool room, wherein the runing time of the PTAC is extended
More than the uptime to help to dehumidify.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/380,178 | 2016-12-15 | ||
| US15/380,178 US10436457B2 (en) | 2015-12-18 | 2016-12-15 | Variable refrigerant package |
| PCT/US2017/065256 WO2018111710A1 (en) | 2016-12-15 | 2017-12-08 | Variable refrigerant package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110214253A true CN110214253A (en) | 2019-09-06 |
Family
ID=62559789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780083974.2A Pending CN110214253A (en) | 2016-12-15 | 2017-12-08 | Variable refrigerant cabinet |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN110214253A (en) |
| CA (1) | CA3047085A1 (en) |
| MX (1) | MX2019006957A (en) |
| WO (1) | WO2018111710A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11226115B2 (en) * | 2019-08-28 | 2022-01-18 | Haier Us Appliance Solutions, Inc. | Air conditioning appliance and telescoping air plenum with face seal |
| CA3085230C (en) * | 2019-12-31 | 2022-07-26 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Chassis for window air conditioner, chassis assembly and window air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113634A (en) * | 1958-07-11 | 1963-12-10 | Bolt Beranek & Newman | Sound absorbing panel for lining a duct |
| US3018642A (en) * | 1960-05-09 | 1962-01-30 | American Air Filter Co | Air conditioner |
| US4524588A (en) * | 1983-11-21 | 1985-06-25 | Amana Refrigeration, Inc. | Air conditioner with improved fresh air path |
| KR930006392A (en) * | 1991-09-02 | 1993-04-21 | 이우에 사또시 | Air conditioner |
| US5924300A (en) * | 1998-06-10 | 1999-07-20 | American Standard Inc. | Modular self contained air conditioning unit |
| US8757506B2 (en) * | 2007-01-03 | 2014-06-24 | Trane International Inc. | PTAC dehumidification without reheat and without a humidistat |
| US7802443B2 (en) * | 2007-04-13 | 2010-09-28 | Air Innovations, Inc. | Total room air purification system with air conditioning, filtration and ventilation |
-
2017
- 2017-12-08 CA CA3047085A patent/CA3047085A1/en active Pending
- 2017-12-08 MX MX2019006957A patent/MX2019006957A/en unknown
- 2017-12-08 CN CN201780083974.2A patent/CN110214253A/en active Pending
- 2017-12-08 WO PCT/US2017/065256 patent/WO2018111710A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| MX2019006957A (en) | 2019-10-15 |
| CA3047085A1 (en) | 2018-06-21 |
| WO2018111710A1 (en) | 2018-06-21 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190906 |
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