CN106885348A - A kind of air-conditioner and control method - Google Patents

A kind of air-conditioner and control method Download PDF

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Publication number
CN106885348A
CN106885348A CN201710239021.2A CN201710239021A CN106885348A CN 106885348 A CN106885348 A CN 106885348A CN 201710239021 A CN201710239021 A CN 201710239021A CN 106885348 A CN106885348 A CN 106885348A
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China
Prior art keywords
interface
temperature
variable conpacitance
conpacitance compressor
air
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CN201710239021.2A
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Chinese (zh)
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CN106885348B (en
Inventor
罗荣邦
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
Qingdao Haier Jiaozhou Air Conditioner Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Priority to CN201710239021.2A priority Critical patent/CN106885348B/en
Publication of CN106885348A publication Critical patent/CN106885348A/en
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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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

Abstract

The invention discloses a kind of air-conditioner and control method, belong to air-conditioning technical field.Air-conditioner includes controller, the first temperature sensor for detecting outdoor environment temperature and the variable conpacitance compressor component for driving refrigerant circulation, variable conpacitance compressor component includes variable conpacitance compressor, and the operational mode of variable conpacitance compressor includes Bi-level mode and twin-tub pattern；Controller is used for：Control air-conditioner refrigerating operaton；Obtain the outdoor environment temperature that temperature sensor is detected；When outdoor environment temperature is more than or equal to temperature threshold, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.Air-conditioner of the invention uses variable conpacitance compressor, the operational mode and its running frequency of variable conpacitance compressor can be flexibly adjusted according to outdoor temperature, so that variable conpacitance compressor can be adapted to the compression efficiency of refrigerant and the coolant quantity of output with current outdoor temperature situation, so as to improve operational energy efficiency of the air-conditioning in refrigerating operaton.

Description

A kind of air-conditioner and control method
Technical field
The present invention relates to air-conditioner technical field, more particularly to a kind of air-conditioner and control method.
Background technology
Conventional air-conditioner is mostly the squeeze operation for carrying out increasing temperature and pressure to refrigerant using mechanical commprssor, such as piston The types such as compressor, helical-lobe compressor, centrifugal compressor, linear compressor, according to the compression cylinder quantity inside compressor, can To be divided into single cylinder compressor, duplex cylinder compressor and multicylinder compressor, wherein, for cylinder body quantity no less than one twin-tub and Multicylinder compressor, its compression process is, according to the order of connection between multiple cylinder bodies, to carry out multi-stage compression operation to refrigerant successively. Air-conditioner in normal operation, compressor often can only according to fixed single compressed ordered mode to refrigerant increasing temperature and pressure, but It is due to the influence of many factors such as outdoor ring temperature, indoor temperature so that under different working conditions, air-conditioner is to its compressor Running frequency, compression efficiency etc. propose different requirements, therefore Conventional press and often deposited with its single compressed mode operation In useless power consumption, it is impossible to the optimal efficiency running status of air-conditioner.
The content of the invention
The invention provides a kind of air-conditioner and control method, it is intended to solve the problems, such as how the operational energy efficiency of air-conditioner. In order to some aspects to the embodiment for disclosing have a basic understanding, simple summary is shown below is.The summarized section It is not extensive overview, nor to determine key/critical component or describe the protection domain of these embodiments.Its unique mesh Be that some concepts are presented with simple form, in this, as the preamble of following detailed description.
According to the first aspect of the invention, a kind of control method of air-conditioner is additionally provided, it is characterised in that control method Including：Control air-conditioner refrigerating operaton；Obtain the outdoor environment temperature that temperature sensor is detected；It is more than in outdoor environment temperature Or during equal to temperature threshold, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
Control method also includes：Obtain the target cryogenic temperature of indoor environment temperature and user's setting；Determine indoor environment Temperature approach between temperature and target cryogenic temperature；When temperature approach is more than or equal to preset temperature difference threshold, varying capacity is controlled Compressor reduces its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor reduces it with the second chirp rate Running frequency；First chirp rate is more than the second chirp rate.
Further, control method includes：Outdoor environment temperature be less than temperature threshold when, control variable conpacitance compressor with Bi-level mode runs, and improves the running frequency of variable conpacitance compressor.
Further, control method also includes：Obtain the target cryogenic temperature of indoor environment temperature and user's setting；It is determined that Temperature approach between indoor environment temperature and target cryogenic temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed improves its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate improves its running frequency；First chirp rate is more than the second chirp rate.
Further, according to the second aspect of the invention, a kind of air-conditioner is additionally provided, air-conditioning includes controller, uses Variable conpacitance compressor component in the first temperature sensor of detection outdoor environment temperature and for driving refrigerant circulation, varying capacity Compressor assembly includes variable conpacitance compressor, and the operational mode of variable conpacitance compressor includes Bi-level mode and twin-tub pattern；Control Device is used for：Control air-conditioner refrigerating operaton；Obtain the outdoor environment temperature that temperature sensor is detected；It is big in outdoor environment temperature When temperature threshold, control variable conpacitance compressor reduces the operation of variable conpacitance compressor frequently with twin-tub mode operation Rate.
Further, variable conpacitance compressor component includes variable conpacitance compressor and the first four-way valve；Air-conditioner includes interior Heat exchanger, outdoor heat exchanger, the second four-way valve and throttling arrangement；Variable conpacitance compressor component is by refrigerant pipeline and indoor heat exchange The connection of device, outdoor heat exchanger, the second four-way valve and throttling arrangement, constitutes medium circulation pipeline.
Further, air-conditioner also includes being connected to the gas-liquid separator of medium circulation pipeline, and gas-liquid separator includes the One outlet and second outlet；Variable conpacitance compressor includes the first compression cylinder and the second compression cylinder, and the first compression cylinder has first to enter Gas port and the first gas outlet, the second compression cylinder have the second air inlet and the second gas outlet, wherein, the first air inlet divides with gas-liquid First outlet from device is connected, and the second gas outlet of the second compression cylinder is connected with the exhaust outlet of variable conpacitance compressor；First Four-way valve includes valve body, the valve block of the valve pocket being arranged in valve body and first interface, second interface, the 3rd interface and the 4th Interface, valve block has connection first interface with second interface, connects the first valve position of the 3rd interface and the 4th interface, connection second The second valve position of interface and the 3rd interface, blocking first interface and the 4th interface；Wherein, the of first interface and gas-liquid separator Two outlet be connected, second interface is connected with the second air inlet, and the 3rd interface is connected with the first gas outlet, the 4th interface and Exhaust outlet is connected；Variable conpacitance compressor is controlled with twin-tub mode operation, including：The valve block of the first four-way valve is controlled to switch to One valve position；Control variable conpacitance compressor is run with Bi-level mode, including：The valve block of the first four-way valve is controlled to switch to the second valve Position.
Further, gas-liquid separator includes import；Second four-way valve includes valve body, the valve of the valve pocket being arranged in valve body Block and first interface, second interface, the 3rd interface and the 4th interface, valve block have connection first interface and the 4th interface, connect The first valve position of logical second interface and the 3rd interface, connects first interface and second interface, connects the 3rd interface and the 4th interface The second valve position；Wherein, first interface is connected with outdoor heat exchanger, and second interface is connected with the outlet of gas-liquid separator, 3rd interface is connected with indoor heat exchanger, and the 4th interface is connected with exhaust outlet；In air-conditioner refrigerating operaton, the second four-way The valve block of valve is in the first valve position.
According to the third aspect of the present invention, a kind of control method of air-conditioner is additionally provided, control method includes：Control Air conditioner heat-production runs；Obtain the outdoor environment temperature that temperature sensor is detected；In outdoor environment temperature less than or equal to temperature During degree threshold value, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
Further, control method also includes：The target for obtaining indoor environment temperature and user's setting heats temperature；It is determined that Target heats the temperature approach between temperature and indoor environment temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed reduces its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate reduces its running frequency；First chirp rate is more than the second chirp rate.
Further, control method also includes：When outdoor environment temperature is more than temperature threshold, variable conpacitance compressor is controlled Run with Bi-level mode, and improve the running frequency of variable conpacitance compressor.
Further, control method also includes：The target for obtaining indoor environment temperature and user's setting heats temperature；It is determined that Target heats the temperature approach between temperature and indoor environment temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed improves its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate improves its running frequency；First chirp rate is more than the second chirp rate.
According to the fourth aspect of the present invention, a kind of air-conditioner is additionally provided, air-conditioning is including controller, for detecting outdoor First temperature sensor of environment temperature and the variable conpacitance compressor component for driving refrigerant circulation, variable conpacitance compressor component Including variable conpacitance compressor, the operational mode of variable conpacitance compressor includes Bi-level mode and twin-tub pattern；Controller is used for：Control Air conditioner heat-production runs；Obtain the outdoor environment temperature that temperature sensor is detected；In outdoor environment temperature less than or equal to temperature During degree threshold value, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
Further, variable conpacitance compressor component includes variable conpacitance compressor and the first four-way valve；Air-conditioner includes interior Heat exchanger, outdoor heat exchanger, the second four-way valve and throttling arrangement；Variable conpacitance compressor component is by refrigerant pipeline and indoor heat exchange The connection of device, outdoor heat exchanger, the second four-way valve and throttling arrangement, constitutes medium circulation pipeline.
Further, air-conditioner also includes being connected to the gas-liquid separator of medium circulation pipeline, and gas-liquid separator includes the One outlet and second outlet；Variable conpacitance compressor includes the first compression cylinder and the second compression cylinder, and the first compression cylinder has first to enter Gas port and the first gas outlet, the second compression cylinder have the second air inlet and the second gas outlet, wherein, the first air inlet divides with gas-liquid First outlet from device is connected, and the second gas outlet of the second compression cylinder is connected with the exhaust outlet of variable conpacitance compressor；First Four-way valve includes valve body, the valve block of the valve pocket being arranged in valve body and first interface, second interface, the 3rd interface and the 4th Interface, valve block has connection first interface with second interface, connects the first valve position of the 3rd interface and the 4th interface, connection second The second valve position of interface and the 3rd interface, blocking first interface and the 4th interface；Wherein, the of first interface and gas-liquid separator Two outlet be connected, second interface is connected with the second air inlet, and the 3rd interface is connected with the first gas outlet, the 4th interface and Exhaust outlet is connected；Variable conpacitance compressor is controlled with twin-tub mode operation, including：The valve block of the first four-way valve is controlled to switch to One valve position；Control variable conpacitance compressor is run with Bi-level mode, including：The valve block of the first four-way valve is controlled to switch to the second valve Position.
Further, gas-liquid separator includes import；Second four-way valve includes valve body, the valve of the valve pocket being arranged in valve body Block and first interface, second interface, the 3rd interface and the 4th interface, valve block have connection first interface and the 4th interface, connect The first valve position of logical second interface and the 3rd interface, connects first interface and second interface, connects the 3rd interface and the 4th interface The second valve position；Wherein, first interface is connected with outdoor heat exchanger, and second interface is connected with the outlet of gas-liquid separator, 3rd interface is connected with indoor heat exchanger, and the 4th interface is connected with exhaust outlet；In air-conditioner heating operation, the two or four The valve block of port valve is in the second valve position.
Air-conditioner of the invention uses variable conpacitance compressor, can flexibly adjust variable conpacitance compressor according to outdoor temperature Operational mode and its running frequency so that variable conpacitance compressor to the compression efficiency of refrigerant and the coolant quantity of output can with work as Preceding outdoor temperature situation is adapted, so as to improve operational energy efficiency of the air-conditioning in refrigerating operaton.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention Example, and be used to explain principle of the invention together with specification.
Fig. 1 is workflow of the control method of the present invention according to shown by an exemplary embodiment in cooling in summer operating mode Figure；
Fig. 2 is the workflow of control method of the present invention according to shown by exemplary embodiment heating condition in the winter time Figure；
Fig. 3 is the structural representation of the air-conditioner of the present invention according to shown by an exemplary embodiment.
Wherein, 11, outdoor heat exchanger；
12nd, variable conpacitance compressor；121st, the first compression cylinder；122nd, the second compression cylinder；123rd, first port；124th, the second end Mouthful；125th, the 3rd port；126th, the 4th port；127th, exhaust outlet；
1211st, the first air inlet；1212nd, the first gas outlet；
1221st, the second air inlet；1222nd, the second gas outlet；
Because the first four-way valve and the second four-way valve may be contained within multiple interfaces, therefore the present invention to many of different four-way valves The interface of individual same names is distinguish between using different references, specific as follows：
13rd, the first four-way valve；131st, first interface；132nd, second interface；133rd, the 3rd interface；134th, the 4th interface；
14th, the second four-way valve：141st, first interface；142nd, second interface；143rd, the 3rd interface；144th, the 4th interface；
16th, gas-liquid separator；161st, first outlet；162nd, second outlet；
21st, indoor heat exchanger；22nd, throttling arrangement.
Specific embodiment
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to Put into practice them.Other embodiments can include structure, logic, it is electric, process and it is other changes.Embodiment Only represent possible change.Unless explicitly requested, otherwise single components and functionality is optional, and the order for operating can be with Change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair The scope of bright embodiment includes the gamut of claims, and all obtainable of claims is equal to Thing.Herein, each embodiment can individually or generally be represented that it is convenient that this is used for the purpose of with term " invention ", And if in fact disclosing the invention more than, the scope for being not meant to automatically limit the application is any single invention Or inventive concept.Herein, such as first and second or the like relational terms be used only for by an entity or operation with Another entity or operation make a distinction, without requiring or implying between these entities or operation there is any actual relation Or order.And, term " including ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that So that process, method or equipment including a series of key elements not only include those key elements, but also including being not expressly set out Other key elements, or also include be this process, method or the intrinsic key element of equipment.In the feelings without more limitations Under condition, the key element limited by sentence "including a ...", it is not excluded that in the process including the key element, method or equipment In also there is other identical element.Each embodiment herein is described by the way of progressive, and each embodiment is stressed Be all difference with other embodiment, between each embodiment identical similar portion mutually referring to.For implementing For example disclosed method, product etc., because it is corresponding with method part disclosed in embodiment, so the comparing of description is simple Single, related part is referring to method part illustration.
As shown in figure 3, the invention provides a kind of air-conditioner, air-conditioner includes indoor set and outdoor unit, wherein, outdoor unit On be provided with the first temperature sensor for detecting outdoor environment temperature, can be with the current outdoor environment temperature of real-time detection； Meanwhile, outdoor unit is additionally provided with the variable conpacitance compressor component for driving refrigerant circulation, and the variable conpacitance compressor component can be with Refrigerant in air-conditioner coolant circulation line is compressed, and for refrigerant circulates offer between machine and outdoor unit indoors Power.
Variable conpacitance compressor component includes variable conpacitance compressor 12, and in embodiment, variable conpacitance compressor 12 at least includes Two compression cylinders, each compression cylinder individually can perform squeeze operation to refrigerant；Air-conditioner is in different temperatures and psychrometric condition During lower operation, it also has corresponding requirement to the refrigerant flowed in medium circulation pipeline, for example, indoor and outdoor temperature is relatively low in the winter time When, to accelerate the heating efficiency of air-conditioner, it is necessary to compressor exports more refrigerants；Or indoor temperature sets close to user in the winter time It is fixed when heating temperature, it is the efficiency for improving air-conditioner, it is necessary to compressor is compressed with compression ratio higher to refrigerant.Cause This, the operational mode of the variable conpacitance compressor 12 that the present invention is used includes Bi-level mode and twin-tub pattern, wherein, in varying capacity pressure When contracting machine 12 is run with Bi-level mode, the refrigerant for flowing through variable conpacitance compressor 12 is compressed successively by each compression cylinder, warp The refrigerant for crossing multi-stage compression is exported to medium circulation pipeline, can improve the compression ratio of refrigerant, therefore Bi-level mode is applied to temperature The degree difference less situation of smaller or humidity difference；And when variable conpacitance compressor 12 is with twin-tub mode operation, flow through varying capacity pressure The refrigerant of contracting machine 12 is individually compressed by each compression cylinder, is not circulated mutually between the refrigerant of each compression cylinder compression, often After one compression cylinder completes compression, the refrigerant for individually compressing it is exported to medium circulation pipeline, compared to Two-stage Compression Pattern, the multiple compression cylinders under twin-tub pattern perform squeeze operation simultaneously, can export the refrigerant of more multiple numbers, therefore Situation larger suitable for temperature difference or that humidity difference is larger, refrigerant demand is more.
Due to the polytropy of indoor and outdoors environmental factor, residing operating mode can also have differences during operation of air conditioner, for example, In the winter time in severe cold weather situation, outdoor environment temperature is relatively low, directly influences the heat exchanger of outdoor unit and changing for outdoor environment Heat；Or, in the daytime of summer and two periods in evening, outdoor environment temperature is changed greatly, therefore conventional air-conditioning When the compressor of device is run with single-mode, it is impossible to meet the refrigerant demand under current working.Therefore, using variable conpacitance compressor 12 air-conditioner of the invention, to be applicable the refrigerant demand under summer condition, in embodiments of the invention (), the present invention is carried A kind of control method of air-conditioner, control method has been supplied at least to comprise the following steps：S110, control air-conditioner refrigerating operaton； The outdoor environment temperature that S120, acquisition temperature sensor are detected；S131, outdoor environment temperature be more than or equal to temperature threshold When, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
Air-conditioner of the present invention uses variable conpacitance compressor component, can both control to change the running frequency of compressor, also may be used To change the refrigerant discharge capacity of variable conpacitance compressor 12 by pattern switching, the need of work under different working conditions is applicable, can be with Play a part of to solve low-frequency vibration and improve air-conditioning efficiency.
In step S110, air-conditioner is started shooting operation in a chiller mode, and now, the variable conpacitance compressor of air-conditioner is with specified work Rated frequency startup optimization under condition, in embodiment, declared working condition is that outdoor environment temperature is 35 DEG C, then rated frequency is compression Machine running frequency corresponding when can reach maximum efficiency when outdoor environment temperature is 35 DEG C.Therefore, it can volume Outdoor environment temperature when determining operating mode is used as the temperature threshold in subsequent step.
When the outdoor environment temperature for actually obtaining is more than or equal to 35 DEG C of declared working condition, conventional single cylinder compressor is needed Coolant quantity requirement can just be met with running frequency higher operating, then actual operating efficiency will be less than maximum efficiency, this Invention air-conditioner uses variable conpacitance compressor, makes its operation twin-tub pattern, and rated discharge becomes big, such that it is able to reduce compressor Running frequency, improves the efficiency of compressor.When 35 DEG C of the outdoor environment temperature for actually obtaining less than declared working condition, conventional list Than relatively low, then actual operating efficiency will also be less than maximum efficiency to the running frequency of cylinder compressor, and air-conditioner of the present invention is used Variable conpacitance compressor, makes its operation Bi-level mode, rated discharge diminish, it is possible to lift the frequency of compressor, can significantly carry Rise operational energy efficiency.
In above-described embodiment (), air-conditioner is in summer operation refrigeration mode, flowing of the refrigerant in medium circulation pipeline Sequentially it is：21 → varying capacity of indoor heat exchanger compression of the 11 → indoor set of outdoor heat exchanger of 12 → outdoor unit of variable conpacitance compressor Machine 12, wherein, refrigerant is flowing through the outdoor heat exchanger 11 of outdoor unit to outdoor environment heat release, is flowing through the indoor heat exchange of indoor set Device 21 is absorbed heat from indoor environment, such that it is able to reach the purpose to indoor environment refrigeration cool-down.
In cooling in summer operating mode, in outdoor environment temperature by being arranged at the first temperature sensor real-time detection of outdoor unit Obtain, the first temperature sensor will detect that the parameters such as the outdoor environment temperature for obtaining are transmitted to controller, in order to controller pair The switching adjustment of the operational mode of variable conpacitance compressor 12；In addition, the above-mentioned control that controller is performed under cooling in summer operating mode The number of times of flow is one or many, therefore when controller performs the above-mentioned control flow of n-th, and the first temperature sensor can be with The real-time outdoor environment temperature matched with current n times control flow is transmitted to air-conditioner, is easy to controller in n-th control During flow, the pattern of variable conpacitance compressor 12 switched to N-1 secondary control flows carries out accommodation, so that air-conditioning exists In running in longer period, the operational mode of variable conpacitance compressor 12 can be worked as with different time points or time period Preceding operating mode is adapted.
In step S131, temperature threshold is the threshold parameter being stored in advance in controller, for example, controller memory storage Temperature threshold can be 30 DEG C, 32 DEG C, 35 DEG C etc., i.e. temperature threshold are for summer temp is higher, outdoor may be influenceed to change The temperature parameter of hot device 11 and outdoor environment heat exchange, therefore using the temperature threshold as the operation mould for judging variable conpacitance compressor 12 The critical condition of formula.
Meanwhile, in step S131, when outdoor environment temperature is more than or equal to temperature threshold, can determine whether outdoor high temperature bar Part can limit the heat exchange amount of outdoor heat exchanger 11, therefore variable conpacitance compressor 12 needs to export the mode operation of more refrigerants. For example, the temperature threshold that air-conditioner sets is 32 DEG C, after refrigerating operaton of starting shooting, the first temperature sensor is detected air-conditioner The outdoor environment temperature for arriving is 36 DEG C, then meet judgement bar of the above-mentioned outdoor environment temperature more than or equal to the first temperature threshold Part, controller controls variable conpacitance compressor 12 with twin-tub mode operation, two execution refrigerant squeeze operations of compression cylinder independence, And to the coolant quantity of the medium circulation pipeline twice single compressed cylinder body of output, so as to increase the refrigerant for flowing through outdoor heat exchanger 11 Amount, improves the heat exchange amount of air-conditioner and outdoor environment.
During due to variable conpacitance compressor 12 with twin-tub mode operation, its running frequency is higher, is easily caused varying capacity compression The problem of the inside secondary refrigerant leakage of machine 12, in influence refrigeration, therefore step S131, controller is in control variable conpacitance compressor 12 While with twin-tub mode operation, can also control to reduce the running frequency of variable conpacitance compressor 12, to reduce refrigerant compression ratio, subtract Few secondary refrigerant leakage amount, lifts refrigeration.
In an embodiment of the present invention, the variable conpacitance compressor 12 of air-conditioner reduces transfiguration when with twin-tub mode operation The rate-determining steps of the running frequency of capacity compressor 12 include：S141, the target refrigeration for obtaining indoor environment temperature and user's setting Temperature；S151, the temperature approach for determining between indoor environment temperature and target cryogenic temperature；S161, it is more than or equal in temperature approach During preset temperature difference threshold, control variable conpacitance compressor reduces its running frequency with the first chirp rate, otherwise, controls varying capacity Compressor reduces its running frequency with the second chirp rate；First chirp rate is more than the second chirp rate.
In embodiment, air-conditioner has the second temperature sensor for detecting indoor environment temperature, and second temperature is passed Sensor will detect that the parameters such as the indoor environment temperature for obtaining are transmitted to controller, in order to controller to variable conpacitance compressor 12 The adjustment of running frequency；In addition, the number of times of above-mentioned control flow that controller is performed under cooling in summer operating mode is once or many It is secondary, therefore when controller performs the above-mentioned control flow of n-th, second temperature sensor can by with current n times control flow The real-time indoor environment temperature for matching is transmitted to air-conditioner, is easy to controller in n-th control flow, to N-1 secondary controls The running frequency of the variable conpacitance compressor 12 that flow processed is controlled carries out accommodation, so that air-conditioning is in longer period Running in, the running frequency of variable conpacitance compressor 12 can mutually be fitted with the current working of different time points or time period Match somebody with somebody.
In step S151, for ease of the follow-up numeric ratio judged in step compared with indoor environment temperature and target refrigeration are warm Temperature approach between degree typically takes its absolute value.
In step S161, the temperature approach between indoor environment temperature and target cryogenic temperature is bigger, then indoor environment temperature It is bigger with temperature difference between target cryogenic temperature, therefore in step S161, preset temperature is more than or equal in temperature approach During difference limen value, control variable conpacitance compressor 12 reduces its running frequency with the first larger chirp rate of numerical value, can be in not shadow In the case that sound air-conditioner refrigeration or influence are relatively low, accelerate the frequency regulation process of variable conpacitance compressor 12, shorten frequently The duration of rate regulation, reduces the generation of secondary refrigerant leakage problem that may be present.
In addition, in step S161, the temperature approach between indoor environment temperature and target cryogenic temperature is smaller, then indoor environment Temperature difference between temperature and target cryogenic temperature is smaller, therefore in step S161, the preset temperature difference is less than in temperature approach During threshold value, control variable conpacitance compressor 12 reduces its running frequency with less second chirp rate of numerical value, to reduce refrigerant While amount of leakage, extend the change duration of refrigerant compression ratio, it is to avoid the temperature and pressure of the refrigerant of the discharge of variable conpacitance compressor 12 Power changed condition is too fast, causes to influence the problem of refrigeration；Further, since being more than or equal to preset temperature difference threshold in temperature approach During value, variable conpacitance compressor 12 is to carry out slow frequency modulation section with the first chirp rate, also extends variable conpacitance compressor 12 with higher The operation duration of frequency compression refrigerant, can increase the cold medium flux of the higher compression ratios that variable conpacitance compressor 12 is exported, and carry Refrigeration high.
In step S161, temperature difference threshold is similarly the threshold parameter being stored in advance in controller, for example, in controller The temperature difference threshold of storage can be 2 DEG C, 3 DEG C, 4 DEG C etc..
In embodiments of the invention (), control method is further comprising the steps of：S132, it is less than in outdoor environment temperature During temperature threshold, control variable conpacitance compressor is run with Bi-level mode, and improves the running frequency of variable conpacitance compressor.
In step S132, when outdoor environment temperature is less than temperature threshold, can determine whether that outdoor high temperature condition is changed outdoor The limitation of the heat exchange amount of hot device 11 is smaller, therefore variable conpacitance compressor 12 can be exporting the mode operation of less refrigerant.For example, The temperature threshold that air-conditioner sets is 32 DEG C, and after refrigerating operaton of starting shooting, the first temperature sensor detects what is obtained to air-conditioner Outdoor environment temperature is 30 DEG C, then meet Rule of judgment of the above-mentioned outdoor environment temperature less than the first temperature threshold, controller control Variable conpacitance compressor processed 12 is run with Bi-level mode, and two compression cylinders perform refrigerant squeeze operation successively, to improve air-conditioning pair The compression ratio of refrigerant, increases the heat exchange amount of the refrigerant of specific discharge, and then lift the heat exchange efficiency of air-conditioner and outdoor environment.
When being run with Bi-level mode due to variable conpacitance compressor 12, its running frequency is relatively low, easily the compression of limitation varying capacity Machine 12 to the compression efficiency of refrigerant, in influence refrigeration, therefore step S132, controller control variable conpacitance compressor 12 with While Bi-level mode runs, can also control to improve the running frequency of variable conpacitance compressor 12, to improve refrigerant compression ratio, lifting Refrigeration.
In an embodiment of the present invention, the variable conpacitance compressor 12 of air-conditioner improves transfiguration when being run with Bi-level mode The step of running frequency of capacity compressor 12, includes：S142, the target cryogenic temperature for obtaining indoor environment temperature and user's setting； S152, the temperature approach for determining between indoor environment temperature and target cryogenic temperature；S162, in temperature approach more than or equal to preset During temperature difference threshold, control variable conpacitance compressor improves its running frequency with the first chirp rate, otherwise, controls variable conpacitance compressor Its running frequency is improved with the second chirp rate；First chirp rate is more than the second chirp rate.
In embodiment, in step S142 acquired indoor environment temperature be similarly disclosed in previous embodiment by The detection of two temperature sensors is obtained and transmitted to the temperature parameter data of controller.
In step S162, the temperature approach between indoor environment temperature and target cryogenic temperature is bigger, then indoor environment temperature It is bigger with temperature difference between target cryogenic temperature, therefore in step S162, preset temperature is more than or equal in temperature approach During difference limen value, control variable conpacitance compressor improves its running frequency with the first larger chirp rate of numerical value, can not influence In the case that air-conditioner refrigeration or influence are relatively low, accelerate the frequency regulation process of variable conpacitance compressor, shorten frequency and adjust The duration of section, so as to improve the operational efficiency of compressor.
In addition, in step S162, the temperature approach between indoor environment temperature and target cryogenic temperature is smaller, then indoor environment Temperature difference between temperature and target cryogenic temperature is smaller, therefore in step S162, the preset temperature difference is less than in temperature approach During threshold value, control variable conpacitance compressor 12 improves its running frequency with less second chirp rate of numerical value, can reduce transfiguration The frequency fluctuation influence of the regulation process of capacity compressor 12, it is to avoid the temperature and pressure shape of the refrigerant that variable conpacitance compressor 12 is exported Condition change is too fast, to improve stability of the variable conpacitance compressor 12 during raising frequency.
In step S162, temperature difference threshold can be used and identical threshold parameter in step S161.Or, controller Each one or more threshold values ginseng of the variable conpacitance compressor 12 under twin-tub pattern and Bi-level mode both of which can respectively be stored Number.
The control method specific workflow of air-conditioner of the present invention is described in detail with reference to a specific embodiment：
S301, control air-conditioner refrigerating operaton；
The outdoor environment temperature that S302, acquisition temperature sensor are detected；
S303, the target cryogenic temperature for obtaining indoor environment temperature and user's setting, determine indoor environment temperature and target Temperature approach between cryogenic temperature；
S304, whether outdoor environment temperature is judged more than or equal to preset temperature threshold, if it is, performing step S351, if it is not, then performing step S352；
S351, control variable conpacitance compressor are with twin-tub mode operation；The first chirp rate and second that acquisition is prestored Chirp rate, wherein, the first chirp rate is more than the second chirp rate, judges between indoor environment temperature and target cryogenic temperature Temperature approach whether be more than or equal to preset temperature difference threshold, if it is, perform step S361, if it is not, then perform step S362；
S361, control variable conpacitance compressor reduce its running frequency with the first chirp rate；
S362, control variable conpacitance compressor reduce its running frequency with the second chirp rate；
S352, control variable conpacitance compressor are run with Bi-level mode；The first chirp rate and second that acquisition is prestored Chirp rate, wherein, the first chirp rate is more than the second chirp rate, judges between indoor environment temperature and target cryogenic temperature Temperature approach whether be more than or equal to preset temperature difference threshold, if it is, perform step S363, if it is not, then perform step S364；
S363, control variable conpacitance compressor improve its running frequency with the first chirp rate；
S364, control variable conpacitance compressor improve its running frequency with the second chirp rate.
In embodiments of the invention (two), present invention also offers a kind of control method of air-conditioner, the air-conditioning utensil Have with identical heat exchange function part in embodiment (), to be applicable the heat exchange demand of winter condition, embodiment (two) controlling party Method is at least comprised the following steps：S210, control air conditioner heat-production operation；The outdoor ring that S220, acquisition temperature sensor are detected Border temperature；S231, outdoor environment temperature be less than or equal to temperature threshold when, control variable conpacitance compressor with twin-tub pattern transport OK, and the running frequency of variable conpacitance compressor is reduced.
In step S210, air-conditioner is started shooting with heating mode and run, and now, the variable conpacitance compressor of air-conditioner is with specified work Rated frequency startup optimization under condition, in embodiment, declared working condition is that outdoor environment temperature is 2 DEG C, then rated frequency is compression Machine running frequency corresponding when can reach maximum efficiency when outdoor environment temperature is 2 DEG C.Therefore, it can will be specified Outdoor environment temperature during operating mode is used as the temperature threshold in subsequent step.
When the outdoor environment temperature for actually obtaining is less than 2 DEG C of declared working condition, conventional single cylinder compressor need with compared with Running frequency operating high can just meet coolant quantity requirement, then actual operating efficiency will be less than maximum efficiency, and the present invention is empty Adjust device to use variable conpacitance compressor, make its operation twin-tub pattern, rated discharge becomes big, such that it is able to reduce compressor operation frequently Rate, improves the efficiency of compressor.When 2 DEG C of the outdoor environment temperature for actually obtaining more than or equal to declared working condition, conventional list Than relatively low, then actual operating efficiency will also be less than maximum efficiency to the running frequency of cylinder compressor, and air-conditioner of the present invention is used Variable conpacitance compressor, makes its operation Bi-level mode, rated discharge diminish, it is possible to lift the frequency of compressor, can significantly carry Rise operational energy efficiency.
In above-described embodiment (two), air-conditioner runs heating mode, flowing of the refrigerant in medium circulation pipeline in the winter time Sequentially it is：11 → varying capacity of outdoor heat exchanger compression of the 21 → outdoor unit of indoor heat exchanger of 12 → indoor set of variable conpacitance compressor Machine 12, wherein, refrigerant absorbs heat in the outdoor heat exchanger 11 for flowing through outdoor unit from outdoor environment, is changed in the interior for flowing through indoor set Hot device 21 is the purpose for heating intensification to indoor environment such that it is able to reach to indoor environment heat release.
In the winter time in heating condition, in outdoor environment temperature by being arranged at the first temperature sensor real-time detection of outdoor unit Obtain, the first temperature sensor will detect that the parameters such as the outdoor environment temperature for obtaining are transmitted to controller, in order to controller pair The switching adjustment of the operational mode of variable conpacitance compressor 12；In addition, the above-mentioned control that controller is performed under summer heating condition The number of times of flow is one or many, therefore when controller performs the above-mentioned control flow of n-th, and the first temperature sensor can be with The real-time outdoor environment temperature matched with current n times control flow is transmitted to air-conditioner, is easy to controller in n-th control During flow, the pattern of variable conpacitance compressor 12 switched to N-1 secondary control flows carries out accommodation, so that air-conditioning exists In running in longer period, the operational mode of variable conpacitance compressor 12 can be worked as with different time points or time period Preceding operating mode is adapted.
In step S231, temperature threshold is the threshold parameter being stored in advance in controller, for example, controller memory storage Temperature threshold can be -2 DEG C, 0 DEG C, 1 DEG C etc., i.e. temperature threshold are for winter temperature is relatively low, may influence outdoor heat exchange The temperature parameter of device 11 and outdoor environment heat exchange, therefore using the temperature threshold as the operational mode for judging variable conpacitance compressor 12 Critical condition.
Meanwhile, in step S231, when outdoor environment temperature is less than or equal to temperature threshold, can determine whether outdoor low temperature bar Part can limit the heat exchange amount of outdoor heat exchanger 11, therefore variable conpacitance compressor 12 needs to export the mode operation of more refrigerants. For example, the temperature threshold that air-conditioner sets is 0 DEG C, after heating operation of starting shooting, the first temperature sensor is detected air-conditioner The outdoor environment temperature for arriving is -3 DEG C, then meet judgement bar of the above-mentioned outdoor environment temperature less than or equal to the first temperature threshold Part, controller controls variable conpacitance compressor 12 with twin-tub mode operation, two execution refrigerant squeeze operations of compression cylinder independence, And to the coolant quantity of the medium circulation pipeline twice single compressed cylinder body of output, so as to increase the refrigerant for flowing through outdoor heat exchanger 11 Amount, improves the heat exchange amount of air-conditioner and outdoor environment.
During due to variable conpacitance compressor 12 with twin-tub mode operation, its running frequency is higher, is easily caused varying capacity compression The problem of the inside secondary refrigerant leakage of machine 12, in influence heating effect, therefore step S231, controller is in control variable conpacitance compressor 12 While with twin-tub mode operation, can also control to reduce the running frequency of variable conpacitance compressor 12, to reduce refrigerant compression ratio, subtract Few secondary refrigerant leakage amount, lifts heating effect.
In an embodiment of the present invention, the variable conpacitance compressor 12 of air-conditioner reduces transfiguration when with twin-tub mode operation The step of running frequency of capacity compressor 12, includes：The target of S241, acquisition indoor environment temperature and user's setting heats temperature； S251, determine that target heats the temperature approach between temperature and indoor environment temperature；S261, in temperature approach more than or equal to preset During temperature difference threshold, control variable conpacitance compressor reduces its running frequency with the first chirp rate, otherwise, controls variable conpacitance compressor Its running frequency is reduced with the second chirp rate；First chirp rate is more than the second chirp rate.
In embodiment, air-conditioner has the second temperature sensor for detecting indoor environment temperature, and second temperature is passed Sensor will detect that the parameters such as the indoor environment temperature for obtaining are transmitted to controller, in order to controller to variable conpacitance compressor 12 The adjustment of running frequency；In addition, the number of times of above-mentioned control flow that controller is performed under heating condition in the winter time is once or many It is secondary, therefore when controller performs the above-mentioned control flow of n-th, second temperature sensor can by with current n times control flow The real-time indoor environment temperature for matching is transmitted to air-conditioner, is easy to controller in n-th control flow, to N-1 secondary controls The running frequency of the variable conpacitance compressor 12 that flow processed is controlled carries out accommodation, so that air-conditioning is in longer period Running in, the running frequency of variable conpacitance compressor 12 can mutually be fitted with the current working of different time points or time period Match somebody with somebody.
In step S251, for ease of the follow-up numeric ratio judged in step compared with target heats temperature and indoor environment temperature Temperature approach between degree typically takes its absolute value.
In step S261, the temperature approach that target is heated between temperature and indoor environment temperature is bigger, then target heats temperature Temperature difference between indoor environment temperature is bigger, therefore in step S261, preset temperature is more than or equal in temperature approach During difference limen value, control variable conpacitance compressor 12 reduces its running frequency with the first larger chirp rate of numerical value, can be in not shadow In the case that sound air conditioner heat-production effect or influence are relatively low, accelerate the frequency regulation process of variable conpacitance compressor 12, shorten frequently The duration of rate regulation, reduces the generation of secondary refrigerant leakage problem that may be present.
In addition, in step S261, the temperature approach that target is heated between temperature and indoor environment temperature is smaller, then target is heated Temperature difference between temperature and indoor environment temperature is smaller, therefore in step S261, the preset temperature difference is less than in temperature approach During threshold value, control variable conpacitance compressor 12 reduces its running frequency with less second chirp rate of numerical value, to reduce refrigerant While amount of leakage, extend the change duration of refrigerant compression ratio, it is to avoid the temperature and pressure of the refrigerant of the discharge of variable conpacitance compressor 12 Power changed condition is too fast, causes to influence the problem of heating effect；Further, since being more than or equal to preset temperature difference threshold in temperature approach During value, variable conpacitance compressor 12 is to carry out slow frequency modulation section with the first chirp rate, also extends variable conpacitance compressor 12 with higher The operation duration of frequency compression refrigerant, can increase the cold medium flux of the higher compression ratios that variable conpacitance compressor 12 is exported, and carry Heating effect high.
In step S261, temperature difference threshold is similarly the threshold parameter being stored in advance in controller, for example, in controller The temperature difference threshold of storage can be 2 DEG C, 3 DEG C, 4 DEG C etc..
In embodiments of the invention (two), control method is further comprising the steps of：S232, it is more than in outdoor environment temperature During temperature threshold, control variable conpacitance compressor is run with Bi-level mode, and improves the running frequency of variable conpacitance compressor.
In step S232, when outdoor environment temperature is more than temperature threshold, can determine whether that outdoor high temperature condition is changed outdoor The limitation of the heat exchange amount of hot device 11 is smaller, therefore variable conpacitance compressor 12 can be exporting the mode operation of less refrigerant.For example, The temperature threshold that air-conditioner sets is 0 DEG C, and after heating operation of starting shooting, the first temperature sensor detects the room for obtaining to air-conditioner External environment temperature is 4 DEG C, then meet Rule of judgment of the above-mentioned outdoor environment temperature more than the first temperature threshold, and controller control becomes Capacity compressor 12 is run with Bi-level mode, and two compression cylinders perform refrigerant squeeze operation successively, to improve air-conditioning to refrigerant Compression ratio, increase the heat exchange amount of the refrigerant of specific discharge, and then lift the heat exchange efficiency of air-conditioner and outdoor environment.
When being run with Bi-level mode due to variable conpacitance compressor 12, its running frequency is relatively low, easily the compression of limitation varying capacity Machine 12 to the compression efficiency of refrigerant, in influence heating effect, therefore step S232, controller control variable conpacitance compressor 12 with While Bi-level mode runs, can also control to improve the running frequency of variable conpacitance compressor 12, to improve refrigerant compression ratio, lifting Heating effect.
In an embodiment of the present invention, the variable conpacitance compressor 12 of air-conditioner is with Bi-level mode when being run, controller institute The step of running frequency of the raising variable conpacitance compressor 12 of control, includes：S242, acquisition indoor environment temperature and user's setting Target heat temperature；S252, determine that target heats the temperature approach between temperature and indoor environment temperature；S262, in temperature approach During more than or equal to preset temperature difference threshold, control variable conpacitance compressor improves its running frequency with the first chirp rate, otherwise, Control variable conpacitance compressor improves its running frequency with the second chirp rate；First chirp rate is more than the second chirp rate.
In embodiment, in step S242 acquired indoor environment temperature be similarly disclosed in previous embodiment by The detection of two temperature sensors is obtained and transmitted to the temperature parameter data of controller.
In step S262, the temperature approach that target is heated between temperature and indoor environment temperature is bigger, then target heats temperature Temperature difference between indoor environment temperature is bigger, therefore in step S262, preset temperature is more than or equal in temperature approach During difference limen value, control variable conpacitance compressor 12 improves its running frequency with the first larger chirp rate of numerical value, can be in not shadow In the case that sound air conditioner heat-production effect or influence are relatively low, accelerate the frequency regulation process of variable conpacitance compressor 12, shorten frequently The duration of rate regulation, so as to improve the operational efficiency of compressor.
In addition, in step S262, the temperature approach that target is heated between temperature and indoor environment temperature is smaller, then target is heated Temperature is smaller with the temperature difference of indoor environment temperature, therefore in step S262, preset temperature difference threshold is less than in temperature approach When, control variable conpacitance compressor 12 improves its running frequency with less second chirp rate of numerical value, can reduce varying capacity pressure The frequency fluctuation influence of the regulation process of contracting machine 12, it is to avoid the temperature and pressure situation of the refrigerant that variable conpacitance compressor 12 is exported becomes Change is too fast, to improve stability of the variable conpacitance compressor 12 during raising frequency.
In step S262, temperature difference threshold can be used and identical threshold parameter in step S261.Or, controller Each one or more threshold values ginseng of the variable conpacitance compressor 12 under twin-tub pattern and Bi-level mode both of which can respectively be stored Number.
The control method specific workflow of air-conditioner of the present invention is described in detail with reference to a specific embodiment：
S401, control air conditioner heat-production operation；
The outdoor environment temperature that S402, acquisition temperature sensor are detected；
The target of S403, acquisition indoor environment temperature and user's setting heats temperature, determines that target heats temperature with interior Temperature approach between environment temperature；
S404, whether outdoor environment temperature is judged less than or equal to preset temperature threshold, if it is, performing step S451, if it is not, then performing step S452；
S451, control variable conpacitance compressor are with twin-tub mode operation；The first chirp rate and second that acquisition is prestored Chirp rate, wherein, the first chirp rate is more than the second chirp rate, judges that target is heated between temperature and indoor environment temperature Temperature approach whether be more than or equal to preset temperature difference threshold, if it is, perform step S461, if it is not, then perform step S462；
S461, control variable conpacitance compressor reduce its running frequency with the first chirp rate；
S462, control variable conpacitance compressor reduce its running frequency with the second chirp rate；
S452, control variable conpacitance compressor are run with Bi-level mode；The first chirp rate and second that acquisition is prestored Chirp rate, wherein, the first chirp rate is more than the second chirp rate, judges that target is heated between temperature and indoor environment temperature Temperature approach whether be more than or equal to preset temperature difference threshold, if it is, perform step S463, if it is not, then perform step S464；
S463, control variable conpacitance compressor improve its running frequency with the first chirp rate；
S464, control variable conpacitance compressor improve its running frequency with the second chirp rate.
In order to the controller for realizing the air-conditioner in embodiment () and embodiment (two) can control air-conditioner to perform Flow is stated, the present invention is described further to the specific part composition and structure of air-conditioner：
Air-conditioner includes indoor heat exchanger 21, outdoor heat exchanger 11, the second four-way valve 14 and throttling arrangement 22, indoor heat exchange Varying capacity compression assembly in device 21, outdoor heat exchanger 11, the second four-way valve 14, throttling arrangement 22 and previous embodiment is by cold Matchmaker's pipeline is connected, and the medium circulation pipeline in air-conditioner is constituted, so as to realize refrigerant following between machine and outdoor unit indoors Circulation journey.
Wherein, indoor heat exchanger 21 is used to be exchanged heat with indoor environment, when being included in cooling in summer operating mode in absorption chamber The heat of environment, and in the winter time heating condition when to indoor environment release heat；Outdoor heat exchanger 11 enters for outdoor environment Row heat exchange, outdoor heat exchange is delivered to when being included in cooling in summer operating mode by the indoor heat that indoor heat exchanger 21 absorbs by refrigerant Device 11, and from outdoor heat exchanger 11 to outdoor environment release heat, and in the winter time heating condition when from outdoor environment absorb Heat, and indoor heat exchanger 21 is delivered heat to by refrigerant, and discharge these to indoor environment from indoor heat exchanger 21 Heat.
In embodiment, air-conditioner also includes being connected to the gas-liquid separator 16 of medium circulation pipeline, and gas-liquid separator 16 is used Separated in the gaseous coolant and liquid refrigerants that will flow back into variable conpacitance compressor 12, and gaseous coolant is input into varying capacity The air entry of compressor 12；Variable conpacitance compressor of the present invention 12 in embodiment has two compression cylinders, in order to ensure double The suction refrigerant that two compression cylinders can be independent during cylinder mode operation, gas-liquid separator of the invention 16 includes first outlet 161 and second outlet 162, convey refrigerant with two compression cylinders being respectively used to variable conpacitance compressor 12.
Or, gas-liquid separator 16 can only set a refrigerant exit, refrigerant exit and the two of variable conpacitance compressor 12 It is attached using branch's refrigerant pipeline between individual compression cylinder, so that from the refrigerant of refrigerant exit outflow, can be along branch Refrigerant pipeline is separately flowed into corresponding compression cylinder.
In an embodiment of the present invention, variable conpacitance compressor component mainly includes the four-way valve of variable conpacitance compressor 12 and first 13, the switching between the different valves position that the present invention passes through the first four-way valve 13, to realize two kinds of fortune to variable conpacitance compressor 12 The switching of row mode.
In specific embodiment, variable conpacitance compressor 12 includes the first compression cylinder 121 and the second compression cylinder 122, two compressions Cylinder individually can perform squeeze operation to refrigerant, in the example shown, for the unit of variable conpacitance compressor 12, two pressures The cylinder body of contracting cylinder is not connected mutually, and the present invention realizes two connections of compression cylinder by the first four-way valve 13, and the one or four When port valve 13 is in different valves position, two compression cylinders respectively constitute Bi-level mode refrigerant flow and twin-tub pattern refrigerant flow.
5 ends for being connected with outside refrigerant pipeline are offered in embodiment, on the body of variable conpacitance compressor 12 altogether Mouthful, including first port 123, second port 124, the 3rd port 125, the 4th port 126 and exhaust outlet 127, wherein, the 4th end Mouth 126 is connected in the internal body of variable conpacitance compressor 12 with exhaust outlet 127, the gas exhaust piping of exhaust outlet 127 and compressor It is connected, allows in the medium circulation pipeline through the refrigerant after overcompression along gas exhaust piping input air-conditioner；First compression cylinder 121 have the first air inlet 1211 and the first gas outlet 1212, and there is the second compression cylinder 122 second air inlet 1221 and second to go out Gas port 1222, wherein, the first air inlet 1211 is connected with the first outlet 161 of gas-liquid separator 16, the second compression cylinder 122 Second gas outlet 1222 is connected with the exhaust outlet 127 of variable conpacitance compressor 12；
First four-way valve 13 includes that valve body, the valve block of the valve pocket being arranged in valve body and first interface 131, second connect Mouthful the 132, the 3rd interface 133 and the 4th interface 134, valve block have connection first interface 131 and second interface 132, connect the 3rd The first valve position of the interface 134 of interface 133 and the 4th, connection second interface 132 and the 3rd interface 133, blocking first interface 131 and The second valve position of the 4th interface 134；Wherein, first interface 131 is connected with the second outlet 162 of gas-liquid separator 16, and second Interface 132 is connected with the second air inlet 1221, and the 3rd interface 133 is connected with the first gas outlet 1212, the 4th interface 134 with Exhaust outlet 127 is connected.
When the first four-way valve 13 is in foregoing the first valve position, variable conpacitance compressor 12 is with twin-tub mode operation, refrigerant Flow path in variable conpacitance compressor component includes two：(1) refrigerant to be compressed is along the first of variable conpacitance compressor 12 Port 123 flows into, and 123 → the first air inlet of first port 1211 → the first that refrigerant flows through variable conpacitance compressor 12 successively compresses 3rd interface 133 of the four-way valve 13 of second port 124 → the first of the 1212 → variable conpacitance compressor of gas outlet 12 of cylinder 121 → the first 4th 126 → variable conpacitance compressor of port 12 of the 4th 134 → variable conpacitance compressor of interface 12 of the four-way valve of → valve pocket-the first 13 Exhaust outlet 127, in this refrigerant flow path, refrigerant carries out first compression by the first compression cylinder 121, finally via exhaust outlet In 127127 output to the refrigerant circulation streams of air-conditioner；(2) refrigerant to be compressed along the first four-way valve 13 first interface stream Enter, refrigerant flows through the second interface 132 → change of first interface 131 → valve pocket → the first four-way valve 13 of the first four-way valve 13 successively The gas outlet 1222 of 3rd port 125 → the second air inlet, 1221 → the second compression cylinder 122 → the second of capacity compressor 12 → become The exhaust outlet 127 of capacity compressor 12, in this refrigerant flow path, refrigerant carries out first compression by the second compression cylinder 122, most Exported into the refrigerant circulation stream of air-conditioner by by exhaust outlet 127.In two above-mentioned refrigerant flow paths, varying capacity Two compression cylinders of compressor 12 can individually perform the operations such as air-breathing, compression and exhaust, can be effectively increased refrigerant Decrement, improves the refrigerant output quantity of compressor, is freezed, heated or is dehumidified with the multiple heat exchange units for meeting indoor set Coolant quantity demand during operation.
When the first four-way valve 13 is in foregoing the second valve position, variable conpacitance compressor 12 is run with Bi-level mode, refrigerant Flow path in variable conpacitance compressor 12 is one：Refrigerant to be compressed along variable conpacitance compressor 12 first port 123 Flow into, refrigerant flow through successively the compression cylinder 121 of 123 → the first air inlet of first port 1211 → the first of variable conpacitance compressor 12 → 3rd 133 → valve pocket of interface of the four-way valve 13 of second port 124 → the first of first 1212 → variable conpacitance compressor of gas outlet 12 The air inlet 1221 → the of 3rd port 125 → the second of the 132 → variable conpacitance compressor of second interface 12 of the → the first four-way valve 13 The exhaust outlet 127 of second 1222 → variable conpacitance compressor of gas outlet 12 of the compression cylinder 122 of two compression cylinder 122 → the second, it is cold herein In matchmaker's flow path, refrigerant carries out first compression by the first compression cylinder 121, and carries out second-compressed by the second compression cylinder 122, most Exported into the refrigerant circulation stream of air-conditioner by by exhaust outlet 127.In above-mentioned refrigerant flow path, varying capacity compression Two compression cylinders of machine 12 successively perform the operations such as air-breathing, compression and exhaust, so as to realize the second-compressed to refrigerant, Ke Yiyou Effect improves the compression ratio of refrigerant, to strengthen the heat exchange efficiency of indoor heat exchanger 21 and outdoor heat exchanger 11.
Therefore, controller specifically controls the first four-way valve 13 in control variable conpacitance compressor 12 with twin-tub mode operation Valve block switch to the first valve position；When controlling variable conpacitance compressor 12 to be run with Bi-level mode, the first four-way valve of specific control 13 valve block switches to the second valve position.
In an embodiment of the present invention, when the second four-way valve 14 is mainly used in control refrigerant in kind of refrigeration cycle and heats circulation Flow direction, the second four-way valve 14 includes valve body, the valve block and first interface 141, second interface of the valve pocket being arranged in valve body 142nd, the 3rd interface 143 and the 4th interface 144, valve block has connection first interface 141 and the 4th interface 144, connect second connects Mouthfuls 142 and the 3rd interface 143 the first valve position, connection first interface 141 and second interface 142, connect the 3rd interface 143 and the The second valve position of four interfaces 144；Wherein, first interface 141 is connected with outdoor heat exchanger 11, and second interface 142 is divided with gas-liquid Outlet from device 16 is connected, and the 3rd interface 143 is connected with indoor heat exchanger 21, and the 4th interface 144 is connected with exhaust outlet 127 It is logical.In air-conditioner refrigerating operaton, the valve block of the second four-way valve 14 is in the first valve position；When air conditioner heat-production runs, second The valve block of four-way valve 14 is in the second valve position.
In order to realize the related procedure of the control method disclosed in embodiment (), the controller of air-conditioner of the present invention is used In：Control air-conditioner refrigerating operaton；Obtain the outdoor environment temperature that temperature sensor is detected；Outdoor environment temperature be more than or During equal to temperature threshold, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
In embodiment, controller is additionally operable to：Obtain the target cryogenic temperature of indoor environment temperature and user's setting；It is determined that Temperature approach between indoor environment temperature and target cryogenic temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed reduces its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate reduces its running frequency；First chirp rate is more than the second chirp rate.
In embodiment, controller is additionally operable to：When outdoor environment temperature is less than temperature threshold, variable conpacitance compressor is controlled Run with Bi-level mode, and improve the running frequency of variable conpacitance compressor.
In embodiment, controller is additionally operable to：Obtain the target cryogenic temperature of indoor environment temperature and user's setting；It is determined that Temperature approach between indoor environment temperature and target cryogenic temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed improves its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate improves its running frequency；First chirp rate is more than the second chirp rate.
In order to realize the related procedure of the control method disclosed in embodiment (), the controller of air-conditioner of the present invention is used In：Control air conditioner heat-production operation；Obtain the outdoor environment temperature that temperature sensor is detected；Outdoor environment temperature be less than or During equal to temperature threshold, control variable conpacitance compressor reduces the running frequency of variable conpacitance compressor with twin-tub mode operation.
In embodiment, controller is additionally operable to：The target for obtaining indoor environment temperature and user's setting heats temperature；It is determined that Target heats the temperature approach between temperature and indoor environment temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed reduces its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate reduces its running frequency；First chirp rate is more than the second chirp rate.
In embodiment, controller is additionally operable to：When outdoor environment temperature is more than temperature threshold, variable conpacitance compressor is controlled Run with Bi-level mode, and improve the running frequency of variable conpacitance compressor.
In embodiment, controller is additionally operable to：The target for obtaining indoor environment temperature and user's setting heats temperature；It is determined that Target heats the temperature approach between temperature and indoor environment temperature；When temperature approach is more than or equal to preset temperature difference threshold, control Variable conpacitance compressor processed improves its running frequency with the first chirp rate；Otherwise, control variable conpacitance compressor is with the second frequency modulation speed Rate improves its running frequency；First chirp rate is more than the second chirp rate.
It should be appreciated that the invention is not limited in the flow and structure that are described above and be shown in the drawings, And can without departing from the scope carry out various modifications and changes.The scope of the present invention is only limited by appended claim System.

Claims (16)

1. a kind of control method of air-conditioner, it is characterised in that the control method includes：
Control the air-conditioner refrigerating operaton；
Obtain the outdoor environment temperature that temperature sensor is detected；
When the outdoor environment temperature is more than or equal to temperature threshold, variable conpacitance compressor is controlled with twin-tub mode operation, and Reduce the running frequency of the variable conpacitance compressor.
2. control method according to claim 1, it is characterised in that the control method also includes：
Obtain the target cryogenic temperature of indoor environment temperature and user's setting；
Determine the temperature approach between the indoor environment temperature and the target cryogenic temperature；
When the temperature approach is more than or equal to preset temperature difference threshold, the variable conpacitance compressor is controlled with the first chirp rate Reduce its running frequency；
Otherwise, control the variable conpacitance compressor reduces its running frequency with the second chirp rate；
First chirp rate is more than second chirp rate.
3. control method according to claim 1, it is characterised in that the control method includes：
When the outdoor environment temperature is less than the temperature threshold, the variable conpacitance compressor is controlled to be run with Bi-level mode, And improve the running frequency of the variable conpacitance compressor.
4. control method according to claim 3, it is characterised in that
The control method also includes：
Obtain the target cryogenic temperature of indoor environment temperature and user's setting；
Determine the temperature approach between the indoor environment temperature and the target cryogenic temperature；
When the temperature approach is more than or equal to preset temperature difference threshold, the variable conpacitance compressor is controlled with the first chirp rate Improve its running frequency；
Otherwise, the variable conpacitance compressor is controlled to improve its running frequency with the second chirp rate；
First chirp rate is more than second chirp rate.
5. a kind of air-conditioner, it is characterised in that the air-conditioning includes controller, the first temperature for detecting outdoor environment temperature Sensor and the variable conpacitance compressor component for driving refrigerant circulation, the variable conpacitance compressor component compress including varying capacity Machine (12), the operational mode of the variable conpacitance compressor (12) includes Bi-level mode and twin-tub pattern；The controller is used for：
Control the air-conditioner refrigerating operaton；
Obtain the outdoor environment temperature that the temperature sensor is detected；
When the outdoor environment temperature is more than or equal to temperature threshold, the variable conpacitance compressor is controlled to be transported with twin-tub pattern OK, and the running frequency of the variable conpacitance compressor is reduced.
6. air-conditioner according to claim 5, it is characterised in that
The variable conpacitance compressor component includes the variable conpacitance compressor (12) and the first four-way valve (13)；
The air-conditioner includes indoor heat exchanger (21), outdoor heat exchanger (11), the second four-way valve (14) and throttling arrangement (22)；
The variable conpacitance compressor component by refrigerant pipeline and the indoor heat exchanger (21), the outdoor heat exchanger (11), Second four-way valve (14) and the throttling arrangement (22) are connected, and constitute medium circulation pipeline.
7. air-conditioner according to claim 6, it is characterised in that
The air-conditioner also includes being connected to the gas-liquid separator (16) of the medium circulation pipeline, the gas-liquid separator (16) Including first outlet (161) and second outlet (162)；
The variable conpacitance compressor (12) includes the first compression cylinder (121) and the second compression cylinder (122), first compression cylinder (121) with the first air inlet (1211) and the first gas outlet (1212), second compression cylinder (122) is with the second air inlet (1221) and the second gas outlet (1222), wherein, first air inlet (1211) is described with the gas-liquid separator (16) First outlet (161) is connected, and second gas outlet (1222) and the varying capacity of second compression cylinder (122) compress The exhaust outlet (127) of machine (12) is connected；
Valve block and first interface of first four-way valve (13) including valve body, the valve pocket being arranged in the valve body (131), second interface (132), the 3rd interface (133) and the 4th interface (134), the valve block have connection first interface (131) with second interface (132), connect the first valve position of the 3rd interface (133) and the 4th interface (134), connect second interface And the 3rd interface (133) blocks second valve of first interface (131) and the 4th interface (134) (132)；Wherein, described first Interface (131) is connected with the second outlet (162) of the gas-liquid separator (16), the second interface (132) and institute State the second air inlet (1221) to be connected, the 3rd interface (133) is connected with first gas outlet (1212), described Four interfaces (134) are connected with the exhaust outlet (127)；
It is described to control the variable conpacitance compressor (12) with twin-tub mode operation, including：Control first four-way valve (13) Valve block switches to the first valve position；
The control variable conpacitance compressor (12) is run with Bi-level mode, including：Control first four-way valve (13) Valve block switches to the second valve position.
8. air-conditioner according to claim 7, it is characterised in that
The gas-liquid separator (16) is including import；
Valve block and first interface of second four-way valve (14) including valve body, the valve pocket being arranged in the valve body (141), second interface (142), the 3rd interface (143) and the 4th interface (144), the valve block have connection first interface (141) with the 4th interface (144), connect the first valve position of second interface (142) and the 3rd interface (143), connect first interface (141) with second interface (142), connect the second valve position of the 3rd interface (143) and the 4th interface (144)；Wherein, described first Interface (141) is connected with the outdoor heat exchanger (11), the institute of the second interface (142) and the gas-liquid separator (16) State outlet to be connected, the 3rd interface (143) is connected with the indoor heat exchanger (21), the 4th interface (144) with The exhaust outlet (127) is connected；
In the air-conditioner refrigerating operaton, the valve block of second four-way valve (14) is in the first valve position.
9. a kind of control method of air-conditioner, it is characterised in that the control method includes：
The air conditioner heat-production is controlled to run；
Obtain the outdoor environment temperature that temperature sensor is detected；
When the outdoor environment temperature is less than or equal to temperature threshold, variable conpacitance compressor is controlled with twin-tub mode operation, and Reduce the running frequency of the variable conpacitance compressor.
10. control method according to claim 9, it is characterised in that the control method also includes：
The target for obtaining indoor environment temperature and user's setting heats temperature；
Determine that the target heats the temperature approach between temperature and the indoor environment temperature；
When the temperature approach is more than or equal to preset temperature difference threshold, the variable conpacitance compressor is controlled with the first chirp rate Reduce its running frequency；
Otherwise, control the variable conpacitance compressor reduces its running frequency with the second chirp rate；
First chirp rate is more than second chirp rate.
11. control methods according to claim 9, it is characterised in that the control method also includes：
When the outdoor environment temperature is more than the temperature threshold, the variable conpacitance compressor is controlled to be run with Bi-level mode, And improve the running frequency of the variable conpacitance compressor.
12. control methods according to claim 11, it is characterised in that the control method also includes：
The target for obtaining indoor environment temperature and user's setting heats temperature；
Determine that the target heats the temperature approach between temperature and the indoor environment temperature；
When the temperature approach is more than or equal to preset temperature difference threshold, the variable conpacitance compressor is controlled with the first chirp rate Improve its running frequency；
Otherwise, the variable conpacitance compressor is controlled to improve its running frequency with the second chirp rate；
First chirp rate is more than second chirp rate.
13. a kind of air-conditioners, it is characterised in that the air-conditioning includes controller, the first temperature for detecting outdoor environment temperature Degree sensor and the variable conpacitance compressor component for driving refrigerant circulation, the variable conpacitance compressor component include varying capacity pressure Contracting machine (12), the operational mode of the variable conpacitance compressor (12) includes Bi-level mode and twin-tub pattern；The controller is used for：
The air conditioner heat-production is controlled to run；
Obtain the outdoor environment temperature that the temperature sensor is detected；
When the outdoor environment temperature is less than or equal to temperature threshold, the variable conpacitance compressor is controlled to be transported with twin-tub pattern OK, and the running frequency of the variable conpacitance compressor is reduced.
14. air-conditioners according to claim 13, it is characterised in that
The variable conpacitance compressor component includes the variable conpacitance compressor (12) and the first four-way valve (13)；
The air-conditioner includes indoor heat exchanger (21), outdoor heat exchanger (11), the second four-way valve (14) and throttling arrangement (22)；
The variable conpacitance compressor component by refrigerant pipeline and the indoor heat exchanger (21), the outdoor heat exchanger (11), Second four-way valve (14) and the throttling arrangement are connected, and constitute medium circulation pipeline.
15. air-conditioners according to claim 14, it is characterised in that
The air-conditioner also includes being connected to the gas-liquid separator (16) of the medium circulation pipeline, the gas-liquid separator (16) Including first outlet (161) and second outlet (162)；
The variable conpacitance compressor (12) includes the first compression cylinder (121) and the second compression cylinder (122), first compression cylinder (121) with the first air inlet (1211) and the first gas outlet (1212), second compression cylinder (122) is with the second air inlet (1221) and the second gas outlet (1222), wherein, first air inlet (1211) is described with the gas-liquid separator (16) First outlet (161) is connected, and second gas outlet (1222) and the varying capacity of second compression cylinder (122) compress The exhaust outlet (127) of machine (12) is connected；
Valve block and first interface of first four-way valve (13) including valve body, the valve pocket being arranged in the valve body (131), second interface (132), the 3rd interface (133) and the 4th interface (134), the valve block have connection first interface (131) with second interface (132), connect the first valve position of the 3rd interface (133) and the 4th interface (134), connect second interface And the 3rd interface (133) blocks second valve of first interface (131) and the 4th interface (134) (132)；Wherein, described first Interface (131) is connected with the second outlet (162) of the gas-liquid separator (16), the second interface (132) and institute State the second air inlet (1221) to be connected, the 3rd interface (133) is connected with first gas outlet (1212), described Four interfaces (134) are connected with the exhaust outlet (127)；
It is described to control the variable conpacitance compressor (12) with twin-tub mode operation, including：Control first four-way valve (13) Valve block switches to the first valve position；
The control variable conpacitance compressor (12) is run with Bi-level mode, including：Control first four-way valve (13) Valve block switches to the second valve position.
16. air-conditioners according to claim 15, it is characterised in that
The gas-liquid separator (16) is including import；
Valve block and first interface of second four-way valve (14) including valve body, the valve pocket being arranged in the valve body (141), second interface (142), the 3rd interface (143) and the 4th interface (144), the valve block have connection first interface (141) with the 4th interface (144), connect the first valve position of second interface (142) and the 3rd interface (143), connect first interface (141) with second interface (142), connect the second valve position of the 3rd interface (143) and the 4th interface (144)；Wherein, described first Interface (141) is connected with the outdoor heat exchanger (11), the institute of the second interface (142) and the gas-liquid separator (16) State outlet to be connected, the 3rd interface (143) is connected with the indoor heat exchanger (21), the 4th interface (144) with The exhaust outlet (127) is connected；
In the air-conditioner heating operation, the valve block of second four-way valve (14) is in the second valve position.
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CN112303827A (en) * 2020-10-30 2021-02-02 青岛海尔空调电子有限公司 Control method of combined air-conditioning system
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CN109026712A (en) * 2018-06-27 2018-12-18 珠海格力电器股份有限公司 Transfiguration control method, device and the intelligent appliance of compressor
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CN110296515A (en) * 2019-08-07 2019-10-01 宁波奥克斯电气股份有限公司 Promote control method, device, air conditioner and the storage medium of air conditioning comfortableness
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CN112303827B (en) * 2020-10-30 2022-05-20 青岛海尔空调电子有限公司 Control method of combined air-conditioning system
CN114234468A (en) * 2021-12-15 2022-03-25 广东芬尼克兹节能设备有限公司 Heat pump device control method, device, unit, computer equipment and storage medium
CN114234468B (en) * 2021-12-15 2023-08-18 广东芬尼克兹节能设备有限公司 Heat pump device control method, device, unit, computer equipment and storage medium
CN114963299A (en) * 2022-06-30 2022-08-30 海信空调有限公司 Air conditioner
CN114963299B (en) * 2022-06-30 2023-11-03 海信空调有限公司 Air conditioner

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