CN1103902C - Controller for air conditioner - Google Patents

Controller for air conditioner Download PDF

Info

Publication number
CN1103902C
CN1103902C CN97110502A CN97110502A CN1103902C CN 1103902 C CN1103902 C CN 1103902C CN 97110502 A CN97110502 A CN 97110502A CN 97110502 A CN97110502 A CN 97110502A CN 1103902 C CN1103902 C CN 1103902C
Authority
CN
China
Prior art keywords
compressor
indoor units
outdoor unit
mentioned
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN97110502A
Other languages
Chinese (zh)
Other versions
CN1167238A (en
Inventor
香月光
合谷纯一
大滨靖程
前田秀雄
小林淳
津久井俊昌
大塚正人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of CN1167238A publication Critical patent/CN1167238A/en
Application granted granted Critical
Publication of CN1103902C publication Critical patent/CN1103902C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • F24F11/30—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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/30—Refrigerant piping for use inside the separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The invention aims to control the compressor based on the control signal of the indoor units. The indoor units comprises: generating equipment for comparing the indoor temperature and set temperture and generating the on/off control signal based on the result; a first delay equipment for making the output of the on signal in the control signal shield the first set time when the off signal generates; a second delay equipment set at the outdoor unit side for outputting the on signal of the control signal output from the indoor units to the compressor after delaying the second set time.

Description

Air conditioner controller
The present invention relates to air conditioner, especially relate to and many indoor units are connected with a compressor of outdoor unit and utilize the air conditioner controller that above-mentioned compressor is carried out break-make control usefulness from the control signal of indoor units output.
In nearest air conditioner, require on a compressor of outdoor unit, to connect indoor units selectively in the following manner: if the bigger indoor units of capacity then connects one; If the less indoor units of capacity then connects many.
In this case, when an indoor units being connected with an above-mentioned compressor and this compressor being carried out break-make when control according to indoor temperature, do not have problems, but when many indoor units being connected in a compressor and being used to when the control signal of each indoor units is carried out break-make control, for fear of the control signal competition that comes from each indoor units, if do not control, then exist the problem that causes compressor to break down.
In view of the above problems, the purpose of this invention is to provide a kind of air conditioner controller, this air conditioner controller can be according to the control signal from each indoor units, and a compressor of the outdoor unit that connected many indoor units is carried out security control.
The air conditioner controller of relevant first aspect present invention, with the cold-producing medium connecting pipe many indoor units are connected with a compressor of outdoor unit, utilize simultaneously from the control signal of above-mentioned indoor units side output above-mentioned compressor is carried out break-make control, this air conditioner controller is characterised in that, on the one hand, be provided with in above-mentioned indoor units: generating means is used for indoor temperature and design temperature compares and produce the control signal make the above-mentioned compressor break-make according to its size; First deferred mount is used for output with the connection signal of this control signal and produces from cut-off signal and sheltered for first stipulated time; On the other hand, in above-mentioned outdoor unit, be provided with second deferred mount, be used for the connection signal from the control signal of any output of above-mentioned many indoor units is outputed to above-mentioned compressor after this connection signal produces second stipulated time of delay.
The air conditioner controller of relevant second aspect present invention is characterised in that, described second deferred mount of relevant first aspect present invention is configured in the casing, and be installed on the housing outer wall of above-mentioned outdoor unit, casing be used to store make cold-producing medium to many isocons shunt, on this each isocon, be provided with simultaneously switch valve and decompressor and the branched pipe that constitutes, to form the pipeline connecting portion that many indoor units are connected with a compressor of above-mentioned outdoor unit.
Fig. 1 is the refrigerant circulation loop figure when two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention with a big capacity indoor units.
Fig. 2 is the refrigerant circulation loop figure when two groups of two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention.
Fig. 3 is the front view of the outdoor unit of refrigerating plant of the present invention.
Fig. 4 is the rear flank view when two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention with a big capacity indoor units.
Fig. 5 is the rearview when two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention with a big capacity indoor units.
Fig. 6 is the side view when two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention with a low capacity indoor units.
Fig. 7 is the rearview when two group two is held platform low capacity indoor units and be connected with the outdoor unit of refrigerating plant of the present invention.
Fig. 8 is stored in the pipeline in second casing of refrigerating plant of the present invention and the configuration structure of distribution box.
Fig. 9 is the electric wiring connection layout when two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention with a big capacity indoor units.
Figure 10 is the electric wiring connection layout when two groups of two low capacity indoor units are connected with the outdoor unit of refrigerating plant of the present invention.
Figure 11 is the circuit diagram of installing in the indoor units of refrigerating plant of the present invention.
Figure 12 is the circuit diagram of installing in the indoor units of refrigerating plant of the present invention.
Figure 13 is the circuit diagram that is stored in the complete shunt assembly in the distribution box of second casing of refrigerating plant of the present invention.
Figure 14 is the sequential chart that expression is arranged on the running status of the compressor in the outdoor unit of refrigerating plant of the present invention.
Below, with reference to accompanying drawing, the situation when applying the present invention to refrigerating plant is an example, describes example in detail.
Fig. 1 and Fig. 2 illustrate the refrigerant loop figure of refrigerating plant respectively, as shown in Figure 1, large and small capacity different separately two compressor 2A, 2B are set in outdoor unit 1, on the compressor 2A of low capacity (for example power supply capacity is 1.5KW), are connecting two small-sized indoor units 3A, 3B (for example refrigerating capacity respectively is 2.3KW).On the other hand, on jumbo compressor 2B (for example power supply capacity is 1.7KW), connecting 1 large-scale indoor units 4 (for example refrigerating capacity is 5.2KW), perhaps, as shown in Figure 2, constitute and to connect than its two small-sized indoor units 5A, 5B (for example refrigerating capacity respectively for 2.6KW).
Promptly, in outdoor unit 1, form the first main refrigerant closed circuit (kind of refrigeration cycle), this loop is used to connect indoor units 3A, 3B, from connecting valve 6A, 6B, being connected to through pipeline 8A, filter 9, capillary 10A, 10B, magnetic valve 11A, the 11B of reservoir 7, compressor 2A, heat exchanger 8 by pipeline and connecting valve 12A, 12B.In addition, in the 1st main refrigerant closed circuit, connecting infusion circuit 13 and bypass loop 14, infusion circuit 13 comprises that a part of liquid refrigerant that will be used for cooling compressor 2A returns the strong throttle capillary tube 13A of compressor 2A, bypass loop 14 for reduce one when operation cold-producing medium to a part of bypass of the quantity delivered of indoor units 3A or 3B with cold-producing medium, on pipeline, connect capillary 14A and magnetic valve 14B.
In indoor units 3A, 3B, disposing heat exchanger 15A, 15B, blowing fan 16A, 16B etc. respectively, by make the cold-producing medium connecting pipe 17A that is connected with this indoor units 3A, 3B, 17B, 18A, 18B and outdoor unit 1 respectively be connected valve 6A, 6B, 12A, 12B connect, form to connect reservoir 7, compressor 2A, 8A, filter 9, capillary 10A and 10B, magnetic valve 11A and the 11B of heat exchanger 8, the refrigerant circulation loop of indoor heat exchanger 15A with refrigerant tubing.
By forming this refrigerant circulation loop, when two indoor units 3A, 3B are in running status simultaneously, carry out heat exchange from outdoor unit 1 to heat exchanger 15A, the 15B of indoor units 3A, 3B low-temperature refrigerant of supplying with and the room air that extracts by blowing fan 16A, 16B, and to indoor discharge cold air.On the other hand, cold-producing medium is heated the back from connecting valve 6A, 6B by in the unit 1 outside cold-producing medium connecting pipe 17A, the 17B inlet chamber by room air.After this cold-producing medium further carries out gas-liquid separation by reservoir 7, only the cold-producing medium of gas phase is supplied with compressor 2A.
After the cold-producing medium of supply compressor 2A is compressed, deliver to heat exchanger 8, here by outdoor air cooling back condensation.Condensation and cold-producing medium after liquefying is removed impurity by filter 9, and under throttling action, be depressurized into the liquid refrigerant of low pressure as capillary 10A, the 10B of decompressor.This low pressure refrigerant is supplied with heat exchanger 15A, 15B from connecting valve 12A, 12B by cold-producing medium connecting pipe 18A, 18B through magnetic valve 11A, 11B, becomes low temperature after the evaporation here, this cold air by blowing fan 16A, 16B to indoor discharge.
Like this, in Jiang Ertai indoor units 3A, 3B and refrigerating operaton that the compressor 2A of outdoor unit is connected,, the part of liquid refrigerant is supplied with compressor 2A from the position near capillary 10A, 10B by infusion circuit 13 for preventing overheat of compressor.In addition, when one among two indoor units 3A, the 3B out of service or room temperature is lower than design temperature, the valve of a corresponding side is closed among magnetic valve 11A, the 11B, simultaneously, for preventing the cold-producing medium excess supply to an operating indoor units, the part of the cold-producing medium that compressor 2A is discharged is returned the inlet of reservoir 7 by bypass loop 14.
On the other hand, in order to be connected with indoor units 4 or indoor units 5A, 5B, in the compressor 2B of outdoor unit 1, form from connecting valve 19 through the pipeline 8B of reservoir 20, compressor 2B, heat exchanger 8, filter 21 is connected to connection valve 22 by pipeline the second main refrigerant closed circuit.In addition, in this second main refrigerant closed circuit (kind of refrigeration cycle), connecting infusion circuit 23 and bypass loop 24, infusion circuit has the strong throttle capillary tube 23A that a part of liquid refrigerant that will be used for cooling compressor 2B returns compressor 2B, bypass loop 24 is made of capillary 24A and magnetic valve 24B, the superfluous a part of bypass with cold-producing medium of cold-producing medium quantity delivered when moving for reducing the indoor units low capacity.
Configuration heat exchanger 25, blowing fan 26 etc. in indoor units 4, when being connected with outdoor unit 1, cold-producing medium connecting pipe 27 directly be connected valve 19 connections, but cold-producing medium connecting pipe 28 constitutes by the first pipe link portion and connects.
This first pipe link portion constitutes: on casing 29, form to connect valve 31,32, simultaneously, be stored in casing 29 inside capillary 30 two ends be connected valve 31,32 connections.
On the other hand, it is structurally identical with indoor units 3A, 3B to be used for two indoor units 5A, 5B connecting with the compressor 2B of outdoor unit 1, comprise heat exchanger 33A, 33B and blowing fan 34A, 34B etc., when being connected, constitute by the connection cold-producing medium connecting pipe 35A of the second pipe link portion, 35B, 36A, 36B with outdoor unit 1.
This second pipe link portion constitutes: form connection valve 38,39A and 39B, 40,41A and 41B on casing 37, simultaneously, the two ends that in branched pipe, connect the isocon 42 of capillary 43A, 43B and magnetic valve 44A, 44B, with be connected valve 40,41A, 41B and connect, and be stored in casing 37 inside.
Each pipeline 8A, 8B of the heat exchanger 8 of outdoor unit 1 inside be common fins (omitting among the figure), blowing fan 45A, 45B structurally.
Fig. 3 shows the front view of outdoor unit 1, longitudinally forms the fan guard 50 of two blowing fan 45A, 45B up and down in the housing front, is disposing the Machine Room 51 that stores compressor 2A, 2B etc. in its side.Also form in its side and to be used for the outside pipeline connecting portion 52 that is connected with the indoor units side.
Side view when Fig. 4 shows the outdoor unit 4 of Jiang Yitai and is connected with outdoor unit 1, Fig. 5 illustrates its rearview, and casing 29 is arranged on the bottom of the pedestal that respectively connects valve that disposes pipeline connecting portion 52 back sides, outside.
When an outdoor unit 4 is connected with outdoor unit 1, with cold-producing medium connecting pipe 27 and outdoor unit 1 be connected valve 19 connect, and with cold-producing medium connecting pipe 60 junction chambers outside unit 1 connection valve 22 and casing 29 be connected valve 31 after, link to each other by the valve 32 that is connected, can form the refrigerant circulation loop that pipeline 8B, filter 21 beginnings from reservoir 20, compressor 2B, heat exchanger 8 are connected to casing 29 successively and then are connected to heat exchanger 25 cold-producing medium connecting pipe 28 and casing 29.
Therefore, from outdoor unit 1 supply with after being cooled of heat exchanger 25 cold-producing medium with carry out heat exchange from the room air of blowing fan 26 by heat exchanger 25, and to indoor discharge cold air.On the other hand, cold-producing medium is by after the room air heating, from connecting valve 19 by in the outer unit 1 of cold-producing medium connecting pipe 27 inlet chambers, carry out gas-liquid separation by reservoir 20 after, only with the cold-producing medium supply compressor 2B of gas phase.
After the cold-producing medium of supply compressor 2B is compressed, deliver to heat exchanger 8, here by outdoor air cooling back condensation.Condensation and after liquefying cold-producing medium remove impurity by filter 21, and supply with casings 29 from connecting valve 22, become low pressure by capillary 30 throttlings of casing 29.This low-pressure, liquid refrigerant is supplied with heat exchangers 25 from connecting valve 32 by cold-producing medium connecting pipe 28, heat exchanger 25 in, evaporate, and by blowing fan to indoor discharge, carry out kind of refrigeration cycle.
On the other hand, when 2 indoor units 5A, 5B were connected with the compressor 2B of outdoor unit 1, shown in the rearview of the side view of Fig. 6, Fig. 7,51 back side configuration casing 37 substituted casings 29 in the Machine Room.And, respectively with the connection valve 19 of the outer unit 1 of refrigerant tubing 61,62 junction chambers and casing 37 be connected between the valve 38 and connection valve 22 and be connected between the valve 40 after, with connecting pipe 35A, the 35B of indoor units 5A, 5B, 36A, 36B respectively with casing 39 be connected valve 39A, 39B, 41A, 41B connection.Thus, can form the refrigerant circulation loop that connects pipeline 8B, filter 21, capillary 43A and 43B, magnetic valve 44A and 44B, heat exchanger 33A and the 33B of reservoir 20, compressor 2B, heat exchanger 8 with refrigerant tubing, the situation that makes 2 indoor units 3A, 3B operations that illustrated with the front is identical, carries out two indoor units 5A, 5B refrigerating operaton.
Like this, carry out refrigerating operaton when two low capacity indoor units 3A, 3B are connected with the compressor 2A of outdoor unit 1, and when further wanting an outdoor unit 4 of big capacity is connected with compressor 2B, casing 29 is installed in the back side of shell of outdoor unit 1, and passes through the outer unit 4 of these casing 29 junction chambers.In addition, when the indoor units 5A that wants to connect again 2 middle capacity, 5B, casing 37 is installed in the back side of shell of outdoor unit 1, connect indoor units 5A, 5B by this casing 37, thereby can carry out the pipeline attended operation simply, reliably, and the pipeline connection error refrigerating plant can not take place be provided with the time.
Promptly, as when factory dispatches from the factory, casing 29 being installed on the outdoor unit 1, and when an indoor units 4 is connected with compressor 2B, only need at the scene with cold-producing medium connecting pipe 27 be connected valve 19 connections, with cold-producing medium connecting pipe 28 be connected valve 32 and connect and get final product, and work as two indoor units 5A, when 5B is connected with compressor 2B, can at the scene casing 29 be pulled down, casing 37 is installed to replace, and with simultaneously the vanning cold-producing medium connecting pipe 61,62 will connect valve 19 and be connected valve 38, connecting valve 22 is connected with 40, then, with connecting pipe 35A, 35B be connected valve 39A, 39B connects, with connecting pipe 36A, 36B be connected valve 41A, 41B connects, because need not relate to the pipeline of pipeline connecting portion 52 inside, outside can operate at all, so pipeline connection error can not take place, can be simple, carry out the fitting operation of refrigerating plant reliably.
In addition, as shown in Figure 6, the casing that is installed in outdoor unit 1 back side is to install according to the direct-insert size L of the air-supply pipeline that can will lead to heat exchanger 8, so, even the wall setting is leaned at the back side of outdoor unit 1, also can leave the interval of L size with wall, can fully guarantee to be drawn into the air quantity of internal exchanger 8, thereby can carry out heat exchange expeditiously from air entry 53.
Fig. 8 illustrates the pipeline that is stored in the casing 37 and the configuration structure of distribution box 100, and casing 37 is the shunt casees by the depth dimensions books shape formation shorter than the size in length and breadth on the drawing.This casing 37 limit, left side 37A that depth dimensions is short faces 52 configurations of outside pipeline connecting portion.In addition, on the 37A of this limit, left side, form the connection valve 39A, 39B, 41A, the 41B that are connected with connecting pipe 35A, 35B, 36A, 36B, connecting pipe 35A, 35B, 36A, 36B connect with indoor units 5A, 5B.In addition, with the base 37B of limit, left side 37A adjacency on also disposing and be connected valve 38,40.
Like this, be configured on the 37B of base owing to will connect valve 38,40, thus the longitudinal size of casing 37 shortened, thereby make the compact conformation of casing 37.
In addition, since with the bore that is connected valve 38 and connects the isocon 42 that valve 39A, 39B connect slightly, can not be configured in the erecting bed free bend, so, when side 37C one side of keeping right on the 37B of base forms notch, configuration isocon 42, can be from the casing right side parallel mobile connection valve 39A, 39B partly be configured in left side limit 37A, will connect simultaneously in the notch that valve 38 is configured in base 37B.In addition, in casing 37, also disposing the distribution box 100 that is used to store complete shunt assemblies such as control magnetic valve 44A, 44B.
Fig. 9 is the electric wiring connection layout a when indoor units 4 is connected with the compressor 2B of outdoor unit 1, and Figure 10 is the electric wiring connection layout when two indoor units 5A, 5B are connected with the compressor 2B of outdoor unit 1.From these two figure as can be seen, when an indoor units 4 is connected with the compressor 2B of outdoor unit 1, can directly carry out the electric wiring of 4 of outdoor unit 1 and indoor units, but when two indoor units 5A, 5B are connected with the compressor 2B of outdoor unit 1, undertaken by complete shunt assembly 100.
Figure 11 is illustrated in the circuit of installing in this outdoor unit 1, supplies with 220～240V single phase alternating current power supply on connector 101.Be connected on connector 102～connector 104 from indoor units 3A, 3B, 4 holding wire.Since with the terminal of each connector 1. connect into same 1., 2. connect into the terminal of each connector 2. same, so the single phase alternating current power supply of supplying with on connector 101 can be powered to each indoor units 3A, 3B, 4 by connector 102～connector 104 respectively.
For compressor 2A, the 2B of 1.5KW and 1.7KW, adopt monocyclic-start induction motor as its drive source, comprise respectively and moving with capacitor to be connected with power supply.
The motor of two (propeller type) blowing fan 45A, 45B that driving is arranged on heat exchanger 8 fronts is identical with the motor of compressor 2A, 2B, adopts monocyclic-start induction motor, comprises that each operation uses capacitor, to be connected with power supply.In addition, the motor of these two blowing fan 45A, 45B structurally can be with air output by drawing centre tap, be that revolution switches to H (at a high speed) and L (low speed).
The 105th, temperature switch constitutes and the contact chip with temperature difference of stipulating according to external air temperature can be switched to high temperature side (H) or low temperature side (L).Therefore, when external air temperature is high, the motor of blowing fan 45A, 45B is switched to high-speed side.
When the terminal of connector 102 has high signal (power output) on 4., electromagnetic switch valve 11A energising, and open refrigerant flow path.Equally, when the terminal of connector 103 has high signal (power output) on 4., electromagnetic switch valve 11B energising, and open refrigerant flow path.These signals are with corresponding from the compressor operating signal of each indoor units output.
Therefore, by 4. exporting high signal to terminal, can open stream to the indoor units the supply system cryogen of correspondence from indoor units.
At the terminal of connector 102 4. or when on 4. any one of terminal of connector 103 high signal being arranged, or (OR) the high signal of circuit 106 outputs.The timing contact chip 107 drive compression machine 2As of high signal from 106 outputs of this or circuit by often opening.Specifically, pass through power supply relay drive compression machine 2A by this high signal, but be simplified illustration, in the following description, omit because of comprising same structure.
Regularly the switching of contact chip 107 is by electrotimer 108 controls.This electrotimer 108 is when non-power status, and regularly contact chip 107 disconnects; After beginning energising and continuing the stipulated time (prevent promptly that compressor 2A from resetting during, be set at 2 usually～minute about), timing contact chip 107 is kept closed.This electrotimer 108 begins energising by the output of diagram or circuit 106.
Or at least any when operation of circuit 109 in compressor 2A or compressor 2B, is to the high signal of temperature switch 105 outputs.Therefore, when any one operation among compressor 2A or the compressor 2B, always can drive blowing fan 45A, 45B, 8 air-supplies of thermotropism source heat exchanger.
110 right and wrongs (NAND) circuit, the 111st, with (AND) circuit, according to or the input of circuit 106 and output control to the energising of electromagnetic switch valve 14B.As long as when be input to or two input signals of circuit 106 in have one during for high signal, electromagnetic switch valve 14B is energising just.In addition, this electromagnetic switch valve 14B is used to make the feel trim actuator action of compressor 2A.
4. the high signal (run signal) that produces at the terminal of connector 104 is applied directly to compressor 2B, is used to control the operation of compressor 2B.
In addition, electromagnetic switch valve 24B its energising of high signal controlling by producing on 5. at the terminal of connector 104 similarly is used to make the feel trim actuator action of compressor 2B with electromagnetic switch valve 14B.
Figure 12 illustrates indoor units (for example 5A) the circuit figure that adorns, and any one of the connector 102～connector 104 of connector 120 and the outdoor unit that illustrates previously is all identical, can connect by same terminal sequence number.In addition, also can respectively this indoor units be connected on each of connector 102～connector 104.
The terminal that control part 121 outputs to connector 120 with the run signal (high signal) of compressor according to the state of being set by switch portion 122 4..In switch portion 122, set the operation of air conditioner/stop, design temperature, discharge air air output (strong (H), in (M), weak (L), select automatically), discharge the wind direction of air, the setting-up time of timer operation etc.In addition, also can constitute several remote controllers by wireless mode that make in these setup parameters sets.
123,124 be respectively the thermistor that is used for detected temperatures, its mounting means is to detect being conditioned the room temperature in the room and the temperature of indoor heat exchanger, the output of these two thermistors 123,124 at interface after A/D (mould/number) conversion, the control part 121 that is used formations such as microcomputer is taken into, and is used for the control of air conditioner.
For example, the size of room temperature and design temperature is compared, when the temperature difference and room temperature when being higher than design temperature with regulation, 4. the terminal that high signal is outputed to connector 120 makes compressor operating, when room temperature reaches design temperature, stop the output of high signal, the operation of compressor is stopped.
In addition, at this moment, reset at short notice, be provided with protective device in order to prevent compressor, after compressor is in a single day out of service, be used at the appointed time (about 2～3 minutes) during in the run signal (high signal) of compressor can not be exported.
When the detected temperatures of thermistor 124 reduces, when promptly the temperature of indoor heat exchanger reduces, freeze, be used for forcibly cutting off the signal that makes compressor operating for preventing indoor heat exchanger.
One of motor that 125 blowing fan 16A, 16B, 26,34A, the 34B that express the indoor units side typically use, can be used to change will be by the air output of the cooled air of indoor heat exchanger when the indoor discharge.Adopt single-phase motor as this motor, by be provided with a plurality of centre taps, can by strong (H), in (M), weak (L), faint (LL) 4 grades change its air output, when the air output of switch portion 122 be set at automatic selection the time, poor according to room temperature and design temperature, along with this difference automatically switch in order from diminishing greatly strong (H), (M), weak (L), when directly selecting air output by the setting of air output, can cooperate this selection with strong (H), in any one-level of (M), weak (L) blow.In addition, faint (LL) reaches setting value and compressor is in the air quantity of setting when stopping in room temperature.
The 126th, stepper motor can be used for changing the air door angle that is used for changing adjusting air discharge direction.As make this stepper motor just change continuously/reverse with the cycle of regulation, then can change the discharge direction of regulating air continuously.
Figure 13 illustrates the circuit of the complete shunt assembly in the distribution box 100 that is stored in casing 37, connector 127,128 can connect by the terminal sequence number identical with the connector 120 of corresponding indoor units, and connector 129 constitutes the identical terminal sequence number connection with the connector 104 of corresponding outdoor unit.
When the terminal of connector 127 has high signal (power output) on 4., electromagnetic switch valve 44A energising, and open refrigerant flow path.Equally, when the terminal of connector 128 has high signal (power output) on 4., electromagnetic switch valve 44B energising, and open refrigerant flow path.These signals are with corresponding from the compressor operating signal of each indoor units output.
Therefore, utilize the high signal that comes from indoor units, open stream to the indoor units the supply system cryogen of correspondence.
Or circuit 132 at the terminal of connector 127 4. or export high signal when on 4. any one of terminal of connector 128 high signal being arranged.4. output to from the terminal of connector 129 from timing contact chip 131 by often opening of the high signal of this or circuit 132 outputs, as the high signal of drive compression machine 2B outdoor unit connector 104 terminal 4..
Regularly the switching of contact chip 131 is by electrotimer 132 controls.This electrotimer 132 is when non-power status, and regularly contact chip 131 disconnects; After beginning energising and continuing the stipulated time (prevent promptly that compressor 2B from resetting during, be set at usually about 2～3 minutes), timing contact chip 131 is kept closed.This electrotimer 132 begins energising under the output of diagram or circuit 130.
NAND circuit 133, with circuit 134 according to or the input of circuit 130 and output control to being installed in the energising of the electromagnetic switch valve 24B on the outdoor unit.As long as when to or two input signals of circuit 130 in when having any one to be high signal, just export high signal with circuit 134, the terminal of this high signal by connector 129 5., 5. the terminal of the connector 104 of outdoor unit make electromagnetic switch valve 24B energising.In addition, this electromagnetic switch valve 24B is used to make the feel trim actuator action of compressor 2B.
In this structure, 3A, 3B are connected with compressor 2A (power output 1500W) with two indoor units (refrigerating capacity is 2200W), as long as when any indoor units is exported high signal, electromagnetic switch valve 14B just opens, and the service ability of compressor 2A is moved under the state of unloading.Because electromagnetic switch valve 14B opens, the service ability of compressor 2A is reduced, thereby do not have superfluous refrigerant flow direction just in operating indoor units, can prevent the liquid-phase reflux that freezes or arrive compressor 2A of the indoor heat exchanger of indoor units.
In addition; the control part 121 of each indoor units 3A, 3B has and comprises protective device; be used to prevent output output (resetting of compressor) again at the appointed time according to the run signal (high signal) of the compressor 2A of the big or small gained of room temperature and design temperature; so; as long as indoor units 3A, 3B have any one when moving, the protective device that can have with the control part of this indoor units prevents that compressor 2A from resetting at the appointed time.
Yet; when two indoor units 3A, 3B move simultaneously; irrelevant with the action of the protective device of a side indoor units; can not prevent to export the run signal of compressor 2A and compressor is reset at the appointed time from the opposing party's indoor units; but in the present invention; owing to be provided with regularly contact chip 107 in outdoor unit 1 one sides; and restriction is from the high signal of OR circuit 106; so; even when two indoor units 3A, 3B move simultaneously, can prevent still that also compressor 2A from resetting.
In addition; as only simply protective device and timing contact chip 107 also being used simultaneously; then will unnecessarily make and prevent the time lengthening reset; but in the present invention; be arranged on indoor units 3A; protective device in the 3B is to prevent resetting of compressor 2A in stipulated time after compressor 2A stops; regularly 107 of contact chips are the operations that postpones compressor 2A in stipulated time after the run signal that obtains compressor 2A; so; after room temperature reaches design temperature; when the thermal cycle because of room temperature and design temperature makes compressor 2A out of service; in most cases; prevent that by protective device the time of resetting from finishing; operation commencing signal for original compressor 2A; only become state, thereby can suppress unnecessarily to make the situation that prevents the time lengthening reset by 107 protections of timing contact chip.
Figure 14 is the sequential chart of the above action of expression.In the figure, T1 is the time that makes the late design temperature of room temperature owing to the operation of compressor 2A constantly, at this moment T1 run signal, protection output, timing contact chip 107 is cut off, and the operation of compressor 2A is stopped.In the Ta time (time before moment T2) behind this moment T1; though protection output is cut off; but during room temperature is less than design temperature (T1～moment T3 constantly) during this period of time, owing to do not export run signal, so needn't carry out unnecessary control to the operation of compressor 2A.Then, run signal is as becoming connection (ON) at moment T3, and then protection output also becomes connection simultaneously, but electrotimer 108 actions postpone the change of timing contact chip 107 from " disconnection " to " closure " of compressor 2A during time T b.After timing contact chip 107 was changed into " closure ", the operation of compressor 2A restarted.
Therefore; as room temperature in an indoor units (for example 3A) less than design temperature; then run signal disconnects (OFF); compressor 2A is disconnected; meanwhile; reach more than the design temperature as room temperature in the opposing party's indoor units 3B, even then run signal and protection output become connection, regularly contact chip 107 also only can become connection after the time postponing Ta.Therefore, compressor 2A also becomes connection at delay Tb after the time, thereby can prevent that compressor 2A from resetting in the time at Tb after out of service, makes it obtain safeguard protection.
Secondly, normally an indoor units (refrigerating capacity is 5200W) 4 is connected with compressor 2B (1700w) by casing 29.At this moment, under the state that the electromagnetic switch valve 24B of outdoor unit 1 remains closed, only by the operation control of carrying out compressor 2B from the run signal of indoor units 4.
As mentioned above, after on the outdoor unit 1 casing 37 being installed, when by being stored in complete shunt assembly 100 in the casing 37 when two indoor units (refrigerating capacity is 2200W) 5A, 5B have been installed, the action during with compressor 2A that 2 indoor units 3A, 3B have been installed is identical.At this moment, be used to control electromagnetic switch valve 44A, 44B that the cold-producing medium of each indoor units 5A, 5B is supplied with and be located in the complete shunt assembly 100, the electromagnetic switch valve 24B (being installed in the outdoor unit 1) that is used to make compressor 2B unloading is by the signal controlling from complete shunt assembly 100.In addition, under the situation of compressor 2B, electrotimer 132 and timing contact chip 131 roles are with the electrotimer 108 of the action of limit compression machine 2A and regularly contact chip 107 is identical.
Structure according to relevant first aspect present invention, owing to be provided with second deferred mount, this device will produce, export to compressor after second stipulated time of delay again from the connection signal the control signal of any output of many indoor units from this connection signal, so, can forbid compressor resetting after stopping at the appointed time reliably, have inhibition simultaneously and unnecessarily make resetting of compressor forbid the effect of time lengthening.
Structure according to relevant second aspect present invention, owing to second deferred mount is stored in links to each other many indoor units in the casing of formation pipeline connecting portion with a compressor and be installed on the housing outer wall of outdoor unit, so, outdoor unit itself is constituted with compact and economic form, and the outdoor unit waste structurally can avoid only connecting an indoor units time.

Claims (2)

1. air conditioner controller, with the cold-producing medium connecting pipe many indoor units are connected with a compressor of outdoor unit, utilize simultaneously from the control signal of above-mentioned indoor units side output above-mentioned compressor is carried out break-make control, this air conditioner controller is characterised in that, on the one hand, be provided with in above-mentioned indoor units: generating means is used for indoor temperature and design temperature compares and produce the control signal that makes the above-mentioned compressor break-make according to indoor temperature and design temperature temperature difference size; First deferred mount is used for the output of the connection signal of this control signal is produced first stipulated time of delay from cut-off signal; On the other hand, in above-mentioned outdoor unit, be provided with second deferred mount, be used for the connection signal from the control signal of any output of above-mentioned many indoor units is outputed to above-mentioned compressor after this connection signal produces second stipulated time of delay.
2. air conditioner controller according to claim 1, it is characterized in that, second deferred mount is configured in the casing, and be installed on the housing outer wall of above-mentioned outdoor unit, casing is used to store makes cold-producing medium shunt, be provided with simultaneously switch valve and decompressor and the branched pipe that constitutes on this each isocon to many isocons, to form the pipeline connecting portion that many indoor units are connected with a compressor of above-mentioned outdoor unit.
CN97110502A 1996-04-10 1997-04-07 Controller for air conditioner Expired - Fee Related CN1103902C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP112172/1996 1996-04-10
JP112172/96 1996-04-10
JP11217296A JP3402924B2 (en) 1996-04-10 1996-04-10 Control device for air conditioner

Publications (2)

Publication Number Publication Date
CN1167238A CN1167238A (en) 1997-12-10
CN1103902C true CN1103902C (en) 2003-03-26

Family

ID=14580059

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97110502A Expired - Fee Related CN1103902C (en) 1996-04-10 1997-04-07 Controller for air conditioner

Country Status (4)

Country Link
JP (1) JP3402924B2 (en)
KR (1) KR100194699B1 (en)
CN (1) CN1103902C (en)
TW (1) TW367398B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3821104B2 (en) * 2003-02-26 2006-09-13 松下電器産業株式会社 Air conditioner control device
TWI548842B (en) * 2013-12-26 2016-09-11 hui-fa Wang Air conditioning control structure of air conditioner
JP6827279B2 (en) * 2016-07-15 2021-02-10 日立ジョンソンコントロールズ空調株式会社 Cooling / heating switching unit and air conditioner equipped with it
CN109579213B (en) * 2018-11-27 2021-05-18 Tcl空调器(中山)有限公司 Air conditioner temperature control method, storage device and air conditioner
CN109764488B (en) * 2018-12-29 2020-01-14 珠海格力电器股份有限公司 Multi-split air conditioner control method, device and unit

Also Published As

Publication number Publication date
JPH09280669A (en) 1997-10-31
KR100194699B1 (en) 1999-06-15
JP3402924B2 (en) 2003-05-06
CN1167238A (en) 1997-12-10
TW367398B (en) 1999-08-21
KR970070817A (en) 1997-11-07

Similar Documents

Publication Publication Date Title
CN1217356C (en) Apparatus and method for cooling power transformers
CN1129742C (en) Air conditioner
US4178988A (en) Control for a combination furnace and heat pump system
CN104949409B (en) A kind of flexible air source heat pump defrosting system and method that need not start compressor
EP2388540A1 (en) Hybrid-driven cold/heat storage type heat pump unit utilizing solar photovoltaic power and commercial power
CN100470168C (en) Cogeneration system
CN1103902C (en) Controller for air conditioner
CN109579152B (en) Electric cabinet and air conditioning unit
US4840220A (en) Heat pump with electrically heated heat accumulator
US8544290B2 (en) Medium voltage variable speed drive for a chiller unit
EP0331826A1 (en) Heat recovery from hydraulic oil
WO2010117868A2 (en) Dual duty compression machine
CN2585591Y (en) Cooling/heating mattress
CN211063072U (en) Centralized cooling system of KYN28 cabinet group
CN1173142C (en) Air conditioner
KR100499485B1 (en) accumulator of heat pump system with at least two compressors
CN100359271C (en) Defrosting apparatus for refrigerator and defrosting method thereof
KR20040045227A (en) accumulator of heat pump system with at least two compressors
CN1590930A (en) Defroasting method of air cooling heat pump system and its defroasting device
US4534181A (en) Cooling system
JP2013117344A (en) Heat-pump heater
CN1196899C (en) Air conditioner and its controlling method
KR200395419Y1 (en) Improved Heating and Cooling System
KR20200109657A (en) Air Radiator Cooler package system for onshore generating plant
CN1690534A (en) Air-conditioner indoor set having heating equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20030326

Termination date: 20110407