CN106133318A

CN106133318A - For controlling the system and method for variable displacement compressor

Info

Publication number: CN106133318A
Application number: CN201580018201.7A
Authority: CN
Inventors: 亨格·M·范; 沙恩·J·安格尔; 爱德华·J·特鲁多; 凯坦·索娃尼
Original assignee: Emerson Climate Technologies Inc
Current assignee: Copeland LP
Priority date: 2014-04-01
Filing date: 2015-04-01
Publication date: 2016-11-16
Anticipated expiration: 2035-04-01
Also published as: EP3126676A1; EP3800354A1; KR20160138571A; EP3126676B1; KR20180078336A; CN106133318B; KR101922958B1; CN109028496B; CN109028496A; EP3800354B1; EP3126676A4; IN2014MU01491A

Abstract

A kind of atmosphere control system can include variable displacement compressor unit and control the control module of this compressor unit.Compressor unit can carry out work with the first capacity model and the second capacity model higher than the first capacity model.Control module is configured to demand signal and outside air temperature, in off position, switches compressor unit between the first capacity model and the second capacity model.

Description

For controlling the system and method for variable displacement compressor

Cross-Reference to Related Applications

This application claims in the priority of American invention application the 14/674th, 980 that on March 31st, 2015 submits to, and And also require in the rights and interests of U.S. Provisional Application No. 61/973,528 that on April 1st, 2014 submits to.The application also require in The rights and interests of the Indian patent application the 1491/MUM/2014th that on April 29th, 2014 submits to and priority.That more than applies for is whole Content is incorporated herein by.

Technical field

Present disclosure relates to a kind of atmosphere control system with variable displacement compressor.

Background technology

This part provides the background information relevant with present disclosure and is not necessarily prior art.

Such as the atmosphere control system of heat pump, refrigeration system or air handling system can include fluid circuit, should Fluid circuit has outdoor heat converter, indoor heat converter, is arranged between indoor heat converter and outdoor heat converter Expansion gear (expansion device) and make working fluid (such as, cold-producing medium or carbon dioxide) Indoor Thermal exchange The compressor of circulation between device and outdoor heat converter.The capacity changing compressor can affect the energy efficiency of system and be System can be heated or cooled the speed in room or space.

Summary of the invention

This part provides overall summary to present disclosure, and is not the comprehensive of its four corner or its all features Open.

Under a kind of form, this disclosure provides a kind of atmosphere control system, this atmosphere control system includes variable Capacity compressor unit and the control module of this compressor unit of control.Compressor unit can be with the first capacity model and Bi The second capacity model that one capacity model is high carrys out work.Control module is configured to demand signal and outdoor air temperature Degrees of data is come in off position, switch compressor unit between the first capacity model and the second capacity model.Control module is permissible Including outside air temperature sensing and demand signal sensing circuit.

In some embodiments, control module single-stage in being arranged in the space to be cooled down by atmosphere control system is permanent Temperature device receives demand signal.

In some embodiments, atmosphere control system may include that indoor heat converter, and it receives from compressor unit Working fluid；And pressure fan, it forces air to form heat convection relation with the working fluid in indoor heat converter.Air-supply Machine such as can include constant-seed motor or the variable speed electric motors, particularly that can work with optional fixed speed tap.

In some embodiments, control module is come at the first capacity model and the second capacity based on compressor operating time Compressor unit is switched between pattern.

In some embodiments, when compressor operating time is compressor unit operation under the second capacity model Between.

In some embodiments, the compressor unit operation time under the second capacity model is equal to the prior demand period Time of previously running under the second capacity model period.It is to say, the operation that compressor unit is under the second capacity model Time can cycle one periodically with comparing with previously running time availability under the second capacity model.

In some embodiments, whether control module is more than five minutes by compressor unit based on the previous operation time The second capacity model is switched to from the first capacity model.

In some embodiments, control module the most works based on compressor unit under the first capacity model More than the time of predetermined amount of time, compressor unit is switched to the second capacity model from the first capacity model.

In some embodiments, atmosphere control system includes comfortable control interface, and this comfortable control interface is configured to It is placed at during multiple comfort level is arranged.The first comfort level setting during comfort level is arranged can correspond to efficiency Working mould Formula, and comfort level arrange in second comfort level arrange can correspond to high performance operation pattern.

In some embodiments, control module is configured to low capacity, compressor operating time is run time threshold Run time threshold with high power capacity to compare.

In some embodiments, control module is configured to: when running based on compressor operating time and the first capacity Between comparison, and run the comparison of time based on compressor operating time and the second capacity, at low capacity pattern and high power capacity Compressor is switched between pattern.

In some embodiments, a comfort level selected by arranging based on comfort level arranges and determines low capacity Run time threshold and high power capacity runs time threshold.

In some embodiments, control module is based only upon demand signal, outside air temperature data and at least one pressure Contracting machine runs the time, operates compressor unit with a capacity model in the first capacity model and the second capacity model.

In some embodiments, at least one compressor operating time described is that compressor unit is at the second capacity model Under the operation time.

In some embodiments, compressor unit only includes a compressor (such as, variable displacement compressor).At it In his embodiment, compressor unit can include multiple variable capacity and/or fixed-capacity compressor.

Under another kind of form, this disclosure provides a kind of method controlling compressor, this compressor can be with the One capacity model and second capacity model higher than the first capacity model carry out work.The method may include that and receives from thermostat Demand signal；The comfort level selected based on user arranges low capacity operation time threshold；In response to receiving demand signal, with Low capacity pattern operates compressor；The operation time of compressor and low capacity are run time threshold compare；And base Run the comparison of time threshold in the time of operation and low capacity, compressor is switched to high power capacity pattern from low capacity pattern.

In some embodiments, the method includes that the comfort level selected based on user arranges high power capacity and runs time threshold Value.

In some embodiments, the method includes: run the comparison of time threshold based on the time of operation and high power capacity, will Compressor switches to low capacity pattern from high power capacity pattern.

Under another form, this disclosure provides a kind of method controlling compressor.This compressor can be with first Capacity model and second capacity model higher than the first capacity model carry out work.The method may include that to receive from thermostat and needs Seek signal；Outside air temperature is compared with predetermined temperature value；By the operation time of compressor and predetermined running time value Compare；In response to receiving demand signal, comparison based on outside air temperature and predetermined temperature value and the time of operation With the comparison of predetermined running time value, operate compression with a capacity model in the first capacity model and the second capacity model Machine.

In some embodiments, the method includes: if outside air temperature is less than predetermined temperature value, and if from Receive demand signal and play the total run time of compressor less than predetermined running time value, the most only operate with the first capacity model Compressor, until meeting demand.

In some embodiments, the method includes: comparison based on the time of operation with predetermined running time value, will compression Machine switches to the second capacity model from the first capacity model.

In some embodiments, the method includes: with the first capacity model to operate compressor, until the time of operation surpasses Cross predetermined running time value；And after exceeding predetermined running time value at runtime, compressor is switched away from the first appearance Amount pattern.

In some embodiments, predetermined running time value be compressor previously with second capacity model work previous time The area of a room, described previous time amount from the startup of the second capacity model until prior demand signal meet.

In some embodiments, it is based only upon demand signal, outside air temperature and at least one compressor operating time, Compressor is operated with a capacity model in the first capacity model and the second capacity model.

Under another kind of form, this disclosure provides a kind of operating fluid loop, it may include that Indoor Thermal exchanges Device, outdoor heat converter, expansion gear, variable displacement compressor and control module.Outdoor heat converter can be with Indoor Thermal Exchanger is in fluid communication.Expansion gear can be arranged between indoor heat converter and outdoor heat converter.Variable capacity Compressor can make working fluid circulate between indoor heat converter and outdoor heat converter.Control module can control compression Machine, and come based on demand signal, outside air temperature data and compressor operating time with low capacity pattern and high power capacity mould A capacity model operation compressor in formula.

In some embodiments, operating fluid loop includes single-stage thermostat, and this single-stage thermostat leads to control module Letter, and be configured to generate demand signal.Demand signal for the operation under the first capacity model and the second capacity model is General.

In some embodiments, operating fluid loop includes indoor blower, and this indoor blower is configured to force Air forms heat convection relation with indoor heat converter.Indoor blower has constant-seed motor.

In some embodiments, control module is come at the first capacity model and second based on another compressor operating time Compressor is switched between capacity model.

In some embodiments, operating fluid loop includes that comfortable control interface, described comfortable control interface are configured Become to be placed at during multiple comfort level is arranged.The first comfort level setting during comfort level is arranged can correspond to efficiency work Pattern, and comfort level arrange in second comfort level arrange can correspond to high performance operation pattern.

In some embodiments, control module is configured to compressor operating time and the first capacity are run time threshold Value and the second capacity run time threshold and compare.

In some embodiments, control module is configured to run the time based on compressor operating time and the first capacity Comparison, and run the comparison of time based on compressor operating time and the second capacity, come at the first capacity model and second Compressor is switched between capacity model.

In some embodiments, the comfort level selected by arranging based on comfort level arranges and determines the first capacity fortune Row time threshold and the second capacity run time threshold.

According to description provided herein, other aspects of the suitability will be apparent from.Description in this summary is with concrete Example is for illustration purposes only, and is not intended to limit and scope of the present disclosure.

Accompanying drawing explanation

Accompanying drawing described herein merely for the embodiment selected rather than to likely implementation illustrative Purpose, is not intended to limit and scope of the present disclosure.

Fig. 1 is the schematic diagram of the heat pump with variable displacement compressor of the principle according to present disclosure；

Fig. 2 is method and the state diagram of algorithm that the variable displacement compressor for controlling Fig. 1 is described；

Fig. 3 shows low capacity level and the high power capacity of the compressor in example weather for example atmosphere control system Level, the curve chart of relation between the thermic load in house and outside air temperature, this example atmosphere control system is for showing Example house is sized customization；

Fig. 4 shows low capacity pattern and the operation time of high power capacity pattern for the scope of outside air temperature The curve chart of percentage ratio；

Fig. 5 shows other method and the state diagram of algorithm of the variable displacement compressor for controlling Fig. 1；

Fig. 6 includes that low capacity runs time threshold for given comfort level and given ambient outdoor air temperature Look-up table；

Fig. 7 includes that high power capacity runs time threshold for given comfort level and given ambient outdoor air temperature Look-up table；

Fig. 8 is to depict to run the curve chart of time at low capacity and high power capacity during the first comfort level operation；

Fig. 9 is to depict to run the curve chart of time at low capacity and high power capacity during the second comfort level operation；

Figure 10 is to depict to run the curve chart of time at low capacity and high power capacity during the 3rd comfort level operation；And

Figure 11 is comfortable control interface and the schematic diagram of control module.

In some views of accompanying drawing, the parts that corresponding reference instruction is corresponding.

Detailed description of the invention

It is described more fully with example embodiment referring now to accompanying drawing.

Example embodiment is provided to make present disclosure be detailed and scope conveys to this area skill fully Art personnel.Many details of the example elaborating such as concrete parts, device and method etc, to provide in the disclosure The detailed understanding of the embodiment held.It will be obvious to a person skilled in the art that detail need not be used, and show Example embodiment can be implemented in many different forms, and should not be construed as limited to scope of the present disclosure.? In some example embodiment, do not describe known process, known apparatus structure and known technology in detail.

Technical term used herein is merely for the purpose of description particular example embodiment, and is not intended to limit System.As used herein, singulative " ", " one " and " being somebody's turn to do " can be intended to also include plural form, unless up and down Literary composition clearly it is further noted that.Term " includes ", " comprising ", " containing " and " having " are inclusives, and therefore specifies institute old The existence of feature, integer, step, operation, element and/or the parts stated, but be not precluded from existing or adding one or more Other features, integer, step, operation, element, parts and/or a combination thereof.Method step described herein, process and operate Be not necessarily to be construed as being necessarily required to the particular order discussing or illustrate perform, unless be fully described and particularly pointed execution sequence. It will further be understood that the other or step of alternative can be used.

When element or layer are mentioned as " on another element or layer ", " being bonded to another element or layer ", " are connected to another One element or layer " or time " being coupled to another element or layer ", it can be located immediately on other element or layer, directly engage Extremely, it is connected to or is coupled to other element or layer, or intermediary element or layer can be there is.By contrast, it is mentioned when element For " being located immediately on another element or layer ", " being spliced directly to another element or layer ", " be connected directly to another element or Layer " or time " being coupled directly to another element or layer ", intermediary element or layer can not be there is.It is used for describing the relation between element Other word (such as " and ... between " with " and directly exist ... between ", " adjacent " and " direct neighbor " etc.) should be with similar side Formula understands.As used in this article, one or more any group during term "and/or" includes the listed items being associated Close and all combinations.

Although first, second, third, etc. term can be used herein to each element, parts, region, layer and/or portion Divide and be described, but these elements, parts, region, layer and/or part should not be limited by these terms.These terms Can only be used for making a distinction an element, parts, region, layer or part with another region, layer or part.Such as " the One ", the term of " second " and other numerical terms etc does not means that order or order time used herein, unless context Explicitly point out.Therefore, the first element described below, parts, region, layer or part are in the teaching without departing from example embodiment In the case of can be referred to as the second element, parts, region, layer or part.

For be prone to describe purpose, can use such as herein " interior ", " outward ", " ... below ", " ... it Under ", D score, " ... on ", " on " etc. space relative terms describe shown in accompanying drawing a element or feature with Other element or the relation of feature.Space relative terms can be intended to contain device in use or operation except in accompanying drawing Being differently directed outside the orientation described.Such as, if the device in accompanying drawing is reversed, be then described as " at other element or Under feature " or the element of " below other element or feature " " on other element or feature " will be oriented to.Cause This, exemplary term " ... under " can contain ... on and ... under the two orientation.Equipment can be with other Mode orients (90-degree rotation or be in other orientation), and space used herein relative descriptors is correspondingly solved Release.

With reference to Fig. 1, system 10 is arranged to include variable displacement compressor (or variable displacement compressor group) 12, room Outer heat-exchanger 14, outdoor draft fan the 15, first expansion gear the 16, second expansion gear 17, indoor heat converter 18 and room Interior pressure fan 19.In the particular configuration shown in Fig. 1, system 10 is to have the heat pump of reversal valve 20, this reversal valve 20 energy It is enough in the direction controlling operating fluid crosses system 10, with switched system 10 between heating mode and refrigerating mode.One In a little configurations, system 10 can be air handling system or refrigeration system, such as, can work the most in a cooling mode.As following In greater detail, control module 22 can control the operation of compressor 12, and can sense based on from outside air temperature When data that device 24 receives, running time T from the signal that thermostat 26 receives, compressor 12 are run with predetermined low capacity Between comparison between threshold value T1 and previously high power capacity run the comparison of time threshold T2 and predetermined value, come in low capacity pattern And switch compressor 12 between high power capacity pattern.Control module 22 can minimize or reduce adopts high power capacity pattern operation With, minimize while keeping acceptable comfort level in space to be heated or cooled or reduce energy use.

Compressor 12 can be or can include that such as scroll compressor, reciprocating compressor or Spiralism type compress Machine and/or the compressor of any other type.Compressor 12 can be at least to come with low capacity pattern and high power capacity pattern Any type of variable displacement compressor of work.Such as, compressor 12 can be or can include compound compressor, one Organize independently operable compressor, multi-speed or variable speed compressor (there is speed change or multispeed electric machine), there is the suction (example modulated Suction as being obstructed) compressor, have fluid injection (such as, energy-saving device circuit) compressor, be configured for whirlpool The scroll compressor (such as, numeral scroll compressor) of the pulse width modulation that rotation separates, there is variable-volume compare valve The compressor of (its be configured to leak intermediate pressure working fluid) or there are two or more in above capacity modulation device Individual compressor.It will be appreciated that compressor 12 can include appointing of the displacement volume for changing its capacity and/or system 10 What his additional or structure of alternative.It will be appreciated that low capacity pattern and/or high power capacity pattern can be continuous print, Steady state operation pattern, or can operation phase during the operation under low capacity pattern and/or under high power capacity pattern Between compressor 12 is modulated (such as, carrying out pulse width modulation).In the U.S. Patent No. 8 that assignee owns together, 616,014, U.S. Patent No. 6,679,072, U.S. Patent No. 8,585,382, U.S. Patent No. 6,213,731, United States Patent (USP) 8,485,789th, U.S. Patent No. 8,459,053 and U.S. Patent No. 5,385,453 disclose exemplary variable capacity Compressor, the disclosure of which is incorporated herein by.

Compressor 12, outdoor heat converter 14, outdoor draft fan the 15, first expansion gear 16 and reversal valve 20 can be by It is arranged in outdoor unit 28.Second expansion gear 17, indoor heat converter 18 and indoor blower 19 can be disposed in In indoor unit 30 (such as air processing machine or furnace), this indoor unit 30 is arranged at home or other buildings 32 In.First check-valves 34 can be arranged between outdoor heat converter 14 and the first expansion gear 16, and can be at cooling mould Limit under formula or stop fluid to flow through the first expansion gear 16, and fluid can be allowed in its heating mode to flow through the first expansion Device 16.Second check-valves 36 can be arranged between the second expansion gear 17 and indoor heat converter 18, and can add Limit under heat pattern or stop fluid to flow through the second expansion gear 17, and fluid can be allowed in a cooling mode to flow through second Expansion gear 17.

Outside air temperature sensor 24 be disposed in building 32 outside and within outdoor unit 28 or outside, and And be configured to measure ambient outdoor air temperature, and intermittently, continuously or according to demand by ambient outdoor air temperature Value is sent to control module 22.In some configurations, outside air temperature sensor 24 can be thermometer or and weather monitoring And/or other sensors that weather forecast system or entity are associated.In such an arrangement, control module 22 can such as warp By the Internet, Wi-Fi,Purple honeybeePower line carrier communication (PLCC) or honeycomb connect or appoint What his wired or wireless communication agreement, obtains (surveyed by sensor 24 from weather monitoring and/or weather forecast system or entity Amount) outside air temperature.Such as, control module 22 can via be positioned in building 32 or be associated with building 32 The Wi-Fi of Wi-Fi router is connected and is communicated by the Internet and weather monitoring and/or weather forecast system or entity. In thermostat 26 is disposed in building 32 and beyond indoor unit 30, and it is configured to measure and to be cooled down by system 10 Heating room or space in air themperature.Thermostat 26 can be single-stage thermostat, single-stage thermostat such as in response to Temperature in room or space be increased to more than set point temperatures (in a cooling mode) or be reduced to below set point temperatures ( Under heating mode), only generate a type of demand signal.Control module 22 can be disposed in any correct position, example As in outdoor unit 28 or be adjacent, or in indoor unit 30 or be adjacent.

In a cooling mode, outdoor heat converter 14 may be operative to condenser or as gas cooler, and permissible Such as by heat passes to be compeled to deliver to by outdoor draft fan 15 air of outdoor heat converter 14 from working fluid, cool down The discharge pressure working fluid received from compressor 12.Outdoor draft fan 15 can include constant speed fan, multi-speed fan or speed change Fan.In a cooling mode, indoor heat converter 18 may be operative to vaporizer, and wherein, working fluid is from by indoor blower 19 air compeling to deliver to indoor heat converter 18 absorb heat, to cool down the space in family or building 32.Indoor blower 19 can include constant speed fan, multi-speed fan or variable speed fan.In its heating mode, outdoor heat converter 14 may be operative to steam Send out device, and indoor heat converter 18 may be operative to condenser or gas cooler, and can be by from compressor 12 institute The heat of the working fluid of discharge passes to space to be heated.

See figures.1.and.2, method and the control algolithm 100 of control module 22 will be described.Algorithm 100 can control compression The operation of machine 12, and make compressor 12 switch between low capacity pattern and high power capacity pattern.In original state 110, pressure Contracting machine 12 may be off.Thermostat 26 can be down to institute in response to the temperature in the space to be heated or cooled by system 10 Under the set point temperatures selected (in its heating mode) or rise on selected set point temperatures (in a cooling mode), Demand signal Y is sent to control module 22.In response to receiving demand signal Y, control module 22 can start compressor 12 operations under low capacity pattern (state 120).Start the compressor 12 operation under low capacity pattern (state 120) permissible Reduce or minimize surge and the mechanical stress of energy during compressor 12 starts.

Control module 22 can receive the ambient outdoor air temperature (input 130) measured by sensor 24, and is being System 10 determines when being in refrigerating mode whether ambient outdoor air temperature is higher than the first predetermined temperature value (such as, such as 90 Fahrenheits Degree).If ambient outdoor air temperature is less than the first predetermined temperature value, then control module 22 can continue in low capacity pattern Operating compressor under (state 120), until meeting cooling requirement, (that is, the temperature in space to be cooled is down to such as thermostat Under selected set point temperatures indicated by 26, and demand signal Y is switched to " closedown " by thermostat) until from connecing The total run time T playing compressor 12 when receiving demand signal Y exceedes predetermined low capacity running time T 1 or until compressor 12 or system 10 is manually turned off or diagnoses or till protection algorism covering algorithm 100.Such as, predetermined low capacity runs the time T1 may be about 40 minutes.If meeting demand before total run time T reaches predetermined low capacity running time T 1, then control Molding block 22 can be with close compressor 12 (state 140).First predetermined temperature value can be selected as one or more Under the many or most of weather condition in geographical position, make in high power capacity pattern in many or most of houses or building Under operation minimal time.When predetermined low capacity is run, T1 can be selected as avoiding running low capacity pattern ratio in order to comfortable Property desired longer, and/or prevent from being switched to too early high power capacity pattern (this by use than expecting more energy).At some Embodiment neutralizes in some cases, it may be desirable to, for the many in many or most of weathers or geographic area Or most of house or building, at the most of time (such as, more than 80%) of cooling season (such as, summer), compressor 12 can run under low capacity pattern.

It is longer than predetermined low capacity running time T 1 if compressor 12 has run and also does not meet demand, then controlling Compressor 12 can be switched to high power capacity pattern (state 150) from low capacity pattern by module 22.Compressor 12 can continue Under high power capacity pattern run, till meeting cooling requirement (or until compressor 12 or system 10 are manually turned off or Till person's diagnosis or protection algorism covering algorithm 100).When demand is satisfied, control module 22 can be with close compressor 12 (shape State 140) rather than switch back into low capacity pattern.When by closing compression after meeting demand with the operation of high power capacity pattern During machine 12, control module 22 can be with the recording compressed machine 12 running time T 2 under high power capacity pattern, and by this operation time T2 is stored in the memory module (not shown) being associated with control module 22.

After initially starting compressor 12 with low capacity pattern initial reception the in response to demand signal Y, if control When molding block 22 determines ambient outdoor air temperature at or greater than the first predetermined temperature value, control module 22 can wait (shape State 160) and allow compressor 12 to continue operation scheduled wait period (such as, about five seconds) under low capacity pattern.Predetermined Waiting period can be selected as guaranteeing the stable startup of compressor 12, and the capacity of not appreciable impact whole system and/or be The ability of the control comfort level of system.After the scheduled wait period terminates, control module 22 may determine that compressor 12 is at Gao Rong Under amount pattern last time running time T 2 whether more than predetermined amount of time (such as, about five minutes) (state 170).This scheduled time Section can be selected to determine that the thermic load of house or building 32 is sufficiently high so that being switched to high power capacity pattern is to realize institute Need comfort level necessary or want, or of a sufficiently low so that continuing under low capacity pattern operation and still obtaining expectation Comfortable control.If high power capacity running time T last time 2 is more than or equal to predetermined amount of time, then control module 22 can will be pressed Contracting machine 12 switches to high power capacity pattern (state 150) from low capacity pattern (state 120).Hereafter, compressor 12 can continue Run under high power capacity pattern, till meeting cooling requirement (or until compressor 12 or system 10 are manually turned off or examine Break or till protection algorism covering algorithm 100).When meeting cooling requirement, control module 22 can be with close compressor 12 (state 140)。

If last time, high power capacity running time T 2 was less than predetermined amount of time at state 170, then control module 22 can continue Continue and operate under low capacity pattern (state 120), till meeting cooling requirement until from receiving demand signal Y Till the total run time T of compressor 12 exceedes predetermined low capacity running time T 1 or till algorithm 100 is capped.

When system 10 is in heating mode, algorithm 100 can operate similarly or equally as above-mentioned, and difference exists Before entering state 160 at algorithm, condition to be met will is that whether ambient outdoor air temperature is less than the second predetermined temperature Value.The second predetermined temperature value when system 10 is in heating mode can with the first predetermined temperature value under refrigerating mode not With.Such as, the second predetermined temperature value under heating mode may be about such as 40 degrees Fahrenheits.Therefore, in its heating mode, as Really control module 22 determines that ambient outdoor air temperature is more than the second predetermined temperature value, then control module 22 can continue in low appearance Compressor 12 is operated, until meeting demand for heat until running time T exceedes predetermined low capacity fortune under amount pattern (state 120) Row time T1 or till algorithm 100 is capped.If in its heating mode, control module 22 determines ambient outdoor air Temperature is less than the second predetermined temperature value, then algorithm 100 can enter state 160.From state 160, algorithm 100 can be as above-mentioned Operate similarly or equally as describing about refrigerating mode.It is contemplated that for many houses or building It is, when outside air temperature is at or greater than 40 degrees Fahrenheit, can be enough to the operation of low capacity pattern in its heating mode Meet demand for heat, and the operation of high power capacity pattern can not be required or wants, until outside air temperature is less than 40 Till degrees Fahrenheit.

Less than the 3rd predetermined outside air temperature (such as, 20 degrees Fahrenheits), even if many heat pumps continue at Gao Rong Operate under amount pattern and the most not there is the ability being sufficient for demand for heat.Therefore, it is alternative in or in addition to this heat pump, Heating system that is that can use replacement or that supplement.Less than the 3rd predetermined temperature, control module 22 can open replacement or Make compressor 12 with high power capacity mode operation the 3rd predetermined running time (such as, 30 minutes) before supplementary heating system.

As it has been described above, variable displacement compressor 12, control module 22 and algorithm 100 can with single-stage room thermostat 26 and The indoor unit 30 with constant speed pressure fan 19 operates together.Therefore, control module 22 and the algorithm 100 of present disclosure allows The atmosphere control system previously existed with fixed capacity is retrofitted to include variable displacement compressor 12 and control module 22, And include multistage thermostat without this system is also repacked into and/or there is the indoor unit of multi-speed pressure fan.By fixed capacity Atmosphere control system repack into and include variable displacement compressor 12 and control module 22 and without replacing single-stage thermostat 26 He Constant speed pressure fan 19 improves performance and the efficiency of atmosphere control system, and not with atmosphere control system is repacked into include many Level thermostat and/or there is notable expense and the complexity of the increase that the indoor unit of multi-speed pressure fan is associated.As an alternative, exist Can use multistage thermostat under situations below: wherein, multistage thermostat is only connected to send single demand signal (such as, Only one demand line is connected to compressor 12 and/or control module 22 rather than makes low capacity demand line and high power capacity demand Line both of which is connected to compressor 12 and/or control module 22).

It will be understood that can bear relative to the heat of house or building 32 based on weather, geographical position, compressor 12 The tonnage size of lotus and/or system are to operate in a cooling mode or in its heating mode, select above-mentioned first pre-constant temperature Angle value, the second predetermined temperature value, predetermined low capacity running time T 1, scheduled wait period and/or predetermined amount of time.

In some embodiments, the outside air temperature used in algorithm 100 is not necessarily instantaneous or real time temperature Value.The substitute is, control module 22 can obtain or determine operation cycle previously or putting down in special time period All outside air temperatures, to consider solar radiation and/or building 32 to be heated or cooled or the thermal mass in space The impact of (thermal mass).

Some of outdoor temperature are received from remote weather report and/or data of weather forecast storehouse or source in control module 22 In embodiment, control module 22 may be configured to record high power capacity pattern operation history to (versus) outside air temperature History and the time in one day.In such embodiment, control module 22 may be configured to: based on the outdoor forecast Air themperature and the operation history recorded, to outside air temperature history and the time in one day, are predicted and are switched to high power capacity The expection future date of pattern and time.

Fig. 3 shows the thermic load under various outside air temperatures in various outside air temperatures and exemplary house Under, the curve chart of exemplary variable capacity compressor capacity under low capacity pattern and high power capacity pattern.Fig. 4 shows pressure Contracting machine percentage ratio under low capacity pattern and high power capacity pattern runs the curve chart of time.When outside air temperature is in following In the range of time: in this range, the thermic load in house is less than compressor capacity under low capacity pattern, and control module 22 is permissible Only operate compressor with low capacity pattern.When outside air temperature be in following in the range of time: in this range, the heat in house bear Lotus is more than the compressor capacity under low capacity pattern and less than the compressor capacity under high power capacity pattern, control module 22 Compressor can be made to switch to meet demand between low capacity pattern and high power capacity pattern.When outside air temperature is in following In the range of time: in this range, the thermic load in house is more than compressor capacity under high power capacity pattern, and control module 22 is permissible Completely or almost completely operate compressor with high power capacity pattern.

The percentage ratio operation time shown in Fig. 4 can be derived as given outdoor environment temperature servant quarters shown in figure 3 The thermic load of son and the ratio of the unit capacity of each capacity level.Based on experiment, predetermined running time T1 (such as, 40 minutes) Can be selected as representing before needing to switch to high power capacity pattern required or acceptable under low capacity pattern Run greatly the time.Predetermined running time T1 can depend on compressor under low capacity pattern and high power capacity pattern relative to house The relative capacity of thermic load and change.Fig. 3 is based under the ambient temperature of 95 degree high power capacity pattern than the heat in house Size regulation rule (sizing rule) in the case of load high about 10.High power capacity level will start the predetermined of operation Ambient temperature may be in the range of 80 five to nine ten degrees Fahrenheits.

With reference to Fig. 1 and Fig. 5 to Figure 11, other method and the control algolithm 200 of control module 22 will be described.Algorithm 200 The operation of compressor 12 can be controlled, and make compressor 12 switch between low capacity pattern and high power capacity pattern.Initially In state 210, compressor 12 may be off.Thermostat 26 can be in response in the space to be heated or cooled by system 10 Air themperature be down under selected set point temperatures (in its heating mode) or rise to selected set point temperatures it Upper (in a cooling mode), and demand signal Y is sent to control module 22.In response to receiving demand signal Y, control module 22 can start the compressor 12 operation (state 220) under low capacity pattern.As it has been described above, start compressor 12 in low capacity Operation under pattern can be reduced or minimized in the energy surge started during compressor 12 and mechanical stress.

After receiving demand signal Y, control module 22 can (before initial starting up compressor 12 at state 220, Simultaneously or after) determine and arrange low capacity operation time threshold T1 ' and high power capacity operation time threshold T2 '.In state 230 Place, control module 22 can select (input 234) to determine operation based on ambient outdoor air temperature (input 232) and comfort level Time threshold T1 ', T2 '.As set forth above, it is possible to receive ambient outdoor air temperature from outside air temperature sensor 24.Permissible Receive comfort level from the comfortable control interface (Figure 11) communicated with control module 22 to select.

In some configurations, comfortable control interface 225 can include graduated disc 227, and such as, graduated disc 227 can be multiple Move between position.In the particular configuration shown in Figure 11, graduated disc 227 can move between five diverse locations, Mei Gewei That puts corresponding in comfort level 1 to 5 (being indicated by the labelling 229 in Figure 11) is the most same.Comfortable control interface 225 can be via Wired connection or wireless connections communicate with control module 22.Such as, comfortable control interface 225 can connect via the Internet (has Line or wireless), honeycomb connect,Connection, radiofrequency signal, infrared signal and/or any other suitable mode are come and control Molding block 22 communicates.In some configurations, replace graduated disc 227 or in addition to graduated disc 227, user control interface 225 also may be used To include one or more button, switch and/or touch screen interface.In some configurations, comfortable control interface 225 can be with example As included, thermostat 26, computer, smart phone or panel computer or any other calculate, control and/or communicator, or Person becomes one part.

Comfort level interface 225 allows user to adjust low capacity and runs time threshold T1 ' and high power capacity operation time threshold T2 ', to adjust energy efficiency and the performance of system 10.Under configuration shown in the figure, comfort level 1 is that reduction compressor 12 is permissible The time quantum that runs under high power capacity pattern and increase time quantum that compressor 12 can operate under low capacity pattern, by The setting of the energy efficiency of this increase system 10.Comfort level 5 is to increase the time that compressor 12 can run under high power capacity pattern The area of a room and reduce time quantum that compressor 12 can run under low capacity pattern, thus increase the performance of system 10 (i.e., Increase system 10 faster cools down or adds the ability of heat space) setting.

Fig. 6 and Fig. 7 depicts the first look-up table 231 and second look-up table 233, the first look-up table 231 and second look-up table 233 provide the low capacity for given ambient outdoor air temperature (or temperature range) for each in five comfort levels Run time threshold T1 ' and high power capacity runs time threshold T2 '.The value of look-up table 231,233 can be stored in and control mould In the memory cell that block 22 is associated, and/or be stored in following in any one memory cell being associated on: meter Calculation machine, panel computer, smart phone, any hand-held device, cloud (server i.e. networked) and/or may be configured to and control Any suitable calculating of molding block 22 communication and/or storage arrangement.As shown in Figure 6 and Figure 7, for each given outdoor Ambient air temperature, low capacity operation time threshold T1 ' increases to comfort level 5 along with comfort level from comfort level 1 and reduces, and High power capacity runs time threshold T2 ' and increases to comfort level 5 along with comfort level from comfort level 1 and increase.When system 10 is at cooling mould The exemplary look-up table 231,233 shown in Fig. 6 and Fig. 7 is used during operation under formula.Other table (not shown) can be stored in For using in its heating mode in the memory cell of control module 22.Such other table can include with table 231, The value that in 233, the value of offer is different.

At state 230, control module 22 can determine for the room received at input 234 based on table 231,233 The low capacity that external environment air themperature and the comfort level received at input 232 select runs time threshold T1 ' and high power capacity fortune Row time threshold T2 '.Then, at state 236,238, control module 22 can be by threshold value T1 ' and threshold value T2 ' be arranged respectively to It is worth determined by state 230.It will be understood that control module 22 can apply formula or series of computation to determine fortune Row time threshold T1 ', T2 ' rather than reference look-up table 231,233.

As long as long as demand signal Y opens and when always running of compressor 12 from the initial reception of demand signal Y Between T less than at state 236 arrange low capacity run time threshold T1 ', compressor 12 just can continue in low capacity pattern Run under (state 220).If demand signal Y is closed, then control module 22 can at state 240 close compressor 12. And if when total run time T exceedes low capacity operation time threshold T1 ', control module 22 can be by total run time T It is rearranged into zero (state 250), and compressor 12 is switched to high power capacity pattern (state 260).As long as demand signal Y opens As long as opening and total run time T running time threshold T2 ' less than the high power capacity arranged at state 238, compressor 12 just may be used To continue to run under high power capacity pattern (state 260).And if running time threshold when total run time T exceedes high power capacity During T2 ', total run time T can be rearranged into zero (state 270) by control module 22, and algorithm 200 can be back to State 230, runs the time to determine before making compressor 12 be back to the low capacity pattern at state 220 and to arrange low capacity Threshold value T1 ' and high power capacity operation time threshold T2 '.Hereafter, algorithm 200 can repeat some steps in above-mentioned steps or Institute in steps, until demand signal Y is closed, or until the operation of compressor 12 capped (such as, manually cover or such as by Compressor protection routine covers).

Fig. 8 to Figure 10 depicts for the operation under low capacity pattern and high power capacity pattern of the various comfort level compressors 12 Time.Fig. 8 depicts the low capacity for low comfort level (such as, comfort level 1) and runs time and high power capacity operation time.Fig. 9 Depict the low capacity for middle comfort level (such as, comfort level 3) and run time and high power capacity operation time.Figure 10 depicts pin The low capacity of high degree of comfort (such as, comfort level 5) is run the time and high power capacity runs the time.As shown in Fig. 8 to Figure 10, higher Comfort level arrange make compressor 12 can longerly under high power capacity pattern run, this improves the performance of system 10.More Low comfort level arranges and compressor 12 is run under low capacity pattern longerly, and this improves system 10 by reducing power consumption Energy efficiency.As shown in Fig. 8 to Figure 10, the operating time under low capacity pattern reduces along with the increase of comfort level.

It will be understood that comfort level can be changed any during algorithm 200, and can be in response to comfort level Change and update immediately low capacity run time threshold T1 ' and high power capacity operation time threshold T2 '.

In some configurations, control module 22 can based on such as weather forecast and/or current weather condition (as humidity, Cloud cover and/or rainfall) adjust operation time threshold T1 ', T2 '.In some configurations, if current weather condition bag Include low humidity, notable cloud cover and/or rain, then when control module 22 can increase low capacity operation for given comfort level Between threshold value T1 ' and/or reduce high power capacity run time threshold T2 '.In some configurations, control module 22 can be based on system 10 The weather of mounted specific geographical area is adjusted the value (or using different tables in algorithm 200) of table 231,232. Such as, comfortable control interface 225 or thermostat 26 may be configured to allow user or install contractor's input system 10 to be pacified The geographic area of dress or climate type.In some configurations, control module 22 can be based on historical data (during as previously run Between, previous ambient outdoor air temperature and/or other previous weather conditions) adjust the value of table 231,233.Configure at some In, the original value adjusting table 231,233 can be become based on current or prediction future energy.In some configurations, can be by table 231, one group of reference value of 233 stores in a memory cell for future usage.

In some configurations, comfort level can be by installing contractor or by service contractor in installation system 10 or system 10 service time set parameter.In some configurations in such an arrangement, house-owner and/or house or the inhabitation of building Person cannot be easily adjusted comfort level and select.In some configurations, such as, electric power utility company or entity can have and set Put and adjust the ability that comfort level selects and/or the comfort level that the habitant of house-owner and/or house/building is carried out select into The ability that row covers.In such an arrangement, this utility company can in the region that house or building 32 are positioned at or To selecting to use the comfort level of lower electricity during the high demand of electric power in community.

In including the application defined below, term " module " can be replaced with term " circuit ".Term " module " May refer to a part for the description below or include the description below: special IC (ASIC)；Numeral, simulate or mix Analog/digital discrete circuit；Numeral, simulation or hybrid analog-digital simulation/digital integrated electronic circuit；Combinational logic circuit；Field-programmable Gate array (FPGA)；Perform the processor (shared, special or group) of code；The memorizer of the code that storage is performed by processor (shared, special or group)；Other suitable hardware componenies of function described by offer；Or some or all of in above-mentioned Combination, such as SOC(system on a chip).

Being described in above is substantially merely illustrative, and be not intended to limit by any way present disclosure, Its application or purposes.The extensively teaching of present disclosure can realize in a variety of manners.Therefore, although present disclosure includes Particular example, but owing to other amendment of research of accompanying drawing, specification and appended be will be apparent from, therefore by basis The true scope of present disclosure should not be so limited.As it is used herein, at least one in phrase A, B and C should This is interpreted to mean logic (A or B or C), uses nonexcludability logical "or".It should be appreciated that this can not changed One or more step in (or) execution method in a different order in the case of the principle of disclosure simultaneously.

Provide the described above of embodiment the most for the purpose of illustration and description.It is not intended to be exhaustive Or restriction present disclosure.The individual component of particular implementation or feature are generally not limited to this particular implementation, but In the case of applicatory interchangeable and can be used in selected embodiment, even and if being not specifically shown or retouch State.The individual component of particular implementation or feature can also be varied in many ways.This change is not to be regarded as deviation Present disclosure, and all such modifications are intended to be included in scope of the present disclosure.

Claims

1. an atmosphere control system, including variable displacement compressor unit and control module, described control module controls described Compressor unit, described compressor unit can be with the first capacity model and the second capacity mould higher than described first capacity model Formula carrys out work, and described control module is configured to based on demand signal and outside air temperature data, in off position, described Described compressor unit is switched between one capacity model and described second capacity model.

Atmosphere control system the most according to claim 1, wherein, described control module receives described need from single-stage thermostat Signal, described single-stage thermostat is asked to be arranged in the space cooled down by described atmosphere control system.

Atmosphere control system the most according to claim 2, also includes indoor heat converter and pressure fan, and described Indoor Thermal is handed over Parallel operation receives working fluid from described compressor unit, and described pressure fan forces air and the work in described indoor heat converter Fluid forms heat convection relation, and described pressure fan includes constant-seed motor or the speed change that can work with optional fixed speed tap Motor.

Atmosphere control system the most according to claim 1, wherein, described control module is come based on compressor operating time Described compressor unit is switched between described first capacity model and described second capacity model.

Atmosphere control system the most according to claim 4, wherein, described compressor operating time is described compressor unit The operation time under described second capacity model.

Atmosphere control system the most according to claim 5, wherein, described compressor unit is under described second capacity model The operation time equal to the time of previously running under described second capacity model during the prior demand period.

Atmosphere control system the most according to claim 6, wherein, described control module based on the described previous operation time is Described compressor unit is switched to described second capacity model from described first capacity model by no being more than five minutes.

Atmosphere control system the most according to claim 6, wherein, based on described compressor unit whether described control module Work under described first capacity model more than the time of predetermined amount of time, by described compressor unit from described first Capacity model switches to described second capacity model.

Atmosphere control system the most according to claim 4, also includes that comfortable control interface, described comfortable control interface are joined Be set to be placed at during multiple comfort level is arranged, wherein, described comfort level arrange in first comfort level arrange corresponding to Efficiency mode of operation, and described comfort level arrange in second comfort level arrange corresponding to high performance operation pattern.

Atmosphere control system the most according to claim 9, wherein, described control module is configured to described compressor Operation time and low capacity run time threshold and high power capacity runs time threshold and compares.

11. atmosphere control systems according to claim 10, wherein, described control module is configured to: based on described pressure Contracting machine runs the comparison of time and described first capacity operation time, and based on described compressor operating time and described second Capacity runs the comparison of time, switches described compressor between low capacity pattern and high power capacity pattern.

12. atmosphere control systems according to claim 11, wherein, described low capacity runs time threshold and described Gao Rong Amount is run comfort level selected by during time threshold is arranged based on described comfort level and is arranged and determine.

13. atmosphere control systems according to claim 1, wherein, described control module is based only upon described demand signal, institute State outside air temperature data and at least one compressor operating time, with described first capacity model and described second capacity mould A capacity model in formula operates described compressor unit.

14. atmosphere control systems according to claim 13, wherein, at least one compressor operating time described is described The compressor unit operation time under described second capacity model.

15. 1 kinds of methods controlling compressor, described compressor can be with the first capacity model with than described first capacity model The second high capacity model carrys out work, and described method includes:

Demand signal is received from thermostat；

Outside air temperature is compared with predetermined temperature value；

The operation time of described compressor is compared with predetermined running time value；And

In response to receiving described demand signal, comparison based on described outside air temperature and described predetermined temperature value and institute State the comparison of operation time and described predetermined running time value, with in described first capacity model and described second capacity model One capacity model operates described compressor.

16. methods according to claim 15, also include: if described outside air temperature is less than described predetermined temperature Value, and if from receiving described demand signal the total run time of described compressor less than the described predetermined running time Value, the most only operates described compressor with described first capacity model, until meeting demand.

17. methods according to claim 15, also include: based on described operation time and described predetermined running time value Relatively, described compressor is switched to described second capacity model from described first capacity model.

18. methods according to claim 15, also include: with described first capacity model to operate described compressor, directly Described predetermined running time value is exceeded to the described operation time；And exceed described predetermined running time value in the described operation time Afterwards, described compressor is switched away from described first capacity model.

19. methods according to claim 15, wherein, described predetermined running time value is that described compressor is previously with described Second capacity model work previous time amount, described previous time amount from the startup of described second capacity model until previously needing Seek meeting of signal.

20. methods according to claim 15, wherein, are based only upon described demand signal, described outside air temperature and extremely A few compressor operating time, grasps with a capacity model in described first capacity model and described second capacity model Make described compressor.