CN103292427B - Air conditioner - Google Patents
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- CN103292427B CN103292427B CN201310053209.XA CN201310053209A CN103292427B CN 103292427 B CN103292427 B CN 103292427B CN 201310053209 A CN201310053209 A CN 201310053209A CN 103292427 B CN103292427 B CN 103292427B
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Abstract
There is provided a kind of air conditioner, the air conditioner possessing multiple indoor set can with the heat exchange amount arranging state and independently suitably regulate indoor set.This air conditioner is possessed the off-premises station of compressor, cross valve, outdoor heat converter, outdoor expansion gear, outdoor draft fan and outer gas temperature sensor by liquid connecting pipings and the connection of gas connecting pipings and is possessed multiple indoor sets of indoor expansion gear, indoor heat converter, indoor blower; It is characterized in that: the first temperature sensor measured the liquid pipe arrangement temperature of above-mentioned outdoor pusher side is set, and the second temperature sensor measured outlet temperature is set at the indoor heat converter of above-mentioned each indoor set; Possess control part, this control part compares the temperature that the above-mentioned two temperatures sensor in heating operation determines, and the indoor set its difference having been exceeded to certain value controls in the mode valve opening of indoor expansion gear being opened setting A.
Description
Technical field
The present invention relates to a kind of air conditioner.
Background technology
There is the air conditioner being connected to the multiple of multiple indoor set relative to 1 off-premises station.When the heating operation of this air conditioner, as the means adjusted the heat exchange amount of each indoor set, there is the heat utilizing indoor expansion valve to carry out and surrender cooling control of making a slip of the tongue.This controls degree of supercooling to be controlled to be certain, so that the saturation temperature calculated from the pressure gauge that be detected by the pressure sensor being located at compressor discharge side and indoor heat converter outlet temperature are in suitable scope.
In addition, in the past exist be disclosed in patent document 1(Japanese Unexamined Patent Publication 2011-7482 publication) such air attemperation apparatus.This air attemperation apparatus has the refrigerant loop that compressor, indoor heat converter, indoor expansion valve and outdoor heat converter are connected successively, in the mode becoming target degree of supercooling with the degree of supercooling of the cold-producing medium of the outlet of indoor heat converter when heating operation controls, when the working capacity of compressor increases the target degree of supercooling change beginning capacity be near maximum, by increasing target degree of supercooling, expand the control range of heating capacity.
[prior art document]
[patent document]
Patent document 1: Japanese Unexamined Patent Publication 2011-7482 publication
Summary of the invention
Invent problem to be solved
But, for the air conditioner of above-mentioned multiple, the situation that multiple indoor set is arranged on various place is many, when in difference of height, piping length etc., the scope disengaging from regulation seen by machine to setting place outdoor, because the connection status between off-premises station with each indoor set (pipe arrangement resistance etc.) is not identical, so, suitably can not control the degree of supercooling of the cold-producing medium of the outlet of the indoor heat converter of each indoor set, there is this problem of heat exchange amount that suitably can not adjust each indoor set.In above-mentioned prior art, do not consider about the problems referred to above point.
The object of the present invention is to provide a kind of air conditioner, possess the air conditioner of multiple indoor set, can with the heat exchange amount arranging state and independently suitably regulate indoor set.
In order to solve the technological means of problem
The present invention is in order to solve above-mentioned problem, a kind of air conditioner is provided, this air conditioner by liquid connecting pipings and gas connecting pipings by the off-premises station possessing compressor, cross valve, outdoor heat converter, outdoor expansion gear, outdoor draft fan and outer gas temperature sensor with possess indoor expansion gear, indoor heat converter, indoor blower multiple indoor sets be connected; The feature of this air conditioner is:
Be provided with the first temperature sensor that the liquid pipe arrangement temperature of above-mentioned outdoor pusher side is measured, and be provided with the second temperature sensor that outlet temperature is measured at the indoor heat converter of above-mentioned each indoor set; Possess control part, this control part compares the temperature that the above-mentioned two temperatures sensor in heating operation determines, and the indoor set its difference having been exceeded to certain value controls in the mode valve opening of indoor expansion gear being opened setting A.
In addition, be characterised in that, in above-mentioned air conditioner, by above-mentioned control part, determine the setting A of the valve opening of above-mentioned indoor expansion gear according to the valve opening of the outdoor expansion gear preset.
In addition, be characterised in that, in above-mentioned air conditioner, by above-mentioned control part, use outer temperature degree and compressor frequency to preset the valve opening of above-mentioned outdoor expansion gear.
In addition, be characterised in that, in above-mentioned air conditioner, by above-mentioned control part, by providing the setting A of the valve opening of above-mentioned indoor expansion gear according to the inlet temperature of each indoor set, the suitably heat exchange amount of holding chamber inside heat exchanger.
In addition, be characterised in that, in above-mentioned air conditioner, the initial value of the valve opening of above-mentioned indoor expansion gear, the connection status corresponding to indoor set and off-premises station decides.
In addition, be characterised in that, in above-mentioned air conditioner, decided the controlled indoor set of valve opening of indoor expansion gear according to the heat exchanger degree of supercooling measuring saturation temperature that value obtains and indoor heat converter from high-pressure by above-mentioned control part.
The effect of invention
According to the present invention, the air conditioner with the state that arranges (difference of height, piping length etc.) of the indoor set of the air conditioner independently suitably heat exchange amount of holding chamber inside heat exchanger can be provided.
Accompanying drawing explanation
Fig. 1 is the refrigerating circulation system figure of the air conditioner of the embodiment of the present invention.
Fig. 2 is the device structure block diagram of the air conditioner of the embodiment of the present invention.
Fig. 3 is the control flow chart of the indoor expansion gear of the embodiment of the present invention.
Fig. 4 is the key diagram of the change representing the outdoor of the embodiment of the present invention and the valve opening of indoor expansion gear.
Detailed description of the invention
Accompanying drawing is used to be described embodiments of the present invention.Same Reference numeral in each figure represents same thing or suitable thing.
Use Fig. 1 that the air conditioner of embodiments of the present invention is described.Fig. 1 is the example of the refrigerating circulation system figure of the air conditioner of present embodiment.Air conditioner, connects 2 off-premises stations 8a, 8b by gas pipe arrangement 13 and liquid pipe arrangement 14 and 3 indoor sets 12a, 12b, 12c are formed, the in-built control part (aftermentioned) controlled them.Here, the connection number of units of off-premises station 8a, 8b can be set to 1 to multiple stage, indoor set 12a, as long as the connection number of units of 12b, 13c also more than 2.In addition, the subscript of the Latin alphabet marked in Reference numeral 12a ~ 12c etc., represents that the situation of each parts is inferior sometimes omit use in general name.
Each off-premises station 8, same with the off-premises station of the air conditioner of standard, by the compressor 1 of capacity variable type, oil eliminator 2, outdoor expansion gear (outdoor expansion valve) 4, outdoor heat converter 5, cross valve 3, reservoir 7, pressure fan 6 and control part 20(that they are controlled aftermentioned) form.Further, temperature sensor 31 on outer gas temperature sensor 30, compressor, pipe arrangement temperature sensor (the first temperature sensor) 32, high-pressure pressure sensor 33, low-pressure sensor 34 is possessed.Pipe arrangement temperature sensor 32, measures the temperature of the liquid pipe arrangement 14 of off-premises station 8 side.Liquid pipe arrangement 14, because the liquid refrigerant of the outlet of the indoor heat converter 9 of the indoor set just worked 12 converges, so the temperature average by the cardinal principle of pipe arrangement temperature sensor 32 to each liquid refrigerant converged measures.
Each indoor set 12, by indoor heat converter 9, indoor expansion gear (indoor expansion valve) 11, air-supply arrangement 10 and control part 25(that they are controlled aftermentioned) form.Further, inlet temperature sensor 35, blowout temperature sensor 36, flue temperature sensor 37, liquid line temperature sensor (the second temperature sensor) 38 is possessed.Liquid line temperature sensor 38a ~ 38c, measures other outlet temperature of each indoor heat converter 9a ~ 9c.
In the heating operation of this air conditioner, the gas refrigerant of having discharged from compressor 1, by oil eliminator 2, cross valve 3, gas pipe arrangement 13, is supplied to the indoor side heat exchanger 9 of indoor set 12.Gas refrigerant, be condensed in the face of room air carries out heating one side at indoor side heat exchanger 9 one, chilled liquid refrigerant is back to off-premises station by indoor expansion gear 11, liquid pipe arrangement 14, enters outdoor expansion gear 4.Outdoor expansion gear 4 can set arbitrary aperture decrease, is sent to outdoor heat converter 5 after reducing pressure with the aperture decrease specified to cold-producing medium.Liquid refrigerant evaporates in outdoor heat converter 5, then is adjusted to appropriate suction mass dryness fraction by reservoir 7, is back to the suction pipe arrangement of compressor 1.
Represent the device structure block diagram of the embodiment of the present invention in fig. 2.Be mounted in the compressor 1 in off-premises station 8, outdoor expansion gear 4, pressure fan 6, cross valve 3 control respectively by off-premises station control part 20.As control information, use the measured value of temperature sensor 31, pipe arrangement temperature sensor 32, high-pressure pressure sensor 33, low-pressure sensor 34 on outer gas temperature sensor 30, compressor.Be mounted in the pressure fan 10 in indoor set 12, indoor expansion gear 11 controls respectively by indoor set control part 21.As control information, possess inlet temperature sensor 35, blowout temperature sensor 36, flue temperature sensor 37, liquid line temperature sensor 38.
Off-premises station 11 and indoor set 12, communicate at control part each other through transmission line 22,23.When connecting multiple stage off-premises station 8, be connected to transmission line 23, the control part 20a be mounted on off-premises station 8a, serve as the unified of multiple stage off-premises station and control.Do not serve as unified other the control part 20b controlled, according to the instruction of control part 20a, carry out the control of each parts in off-premises station.As the control information in each off-premises station, the measured value of temperature sensor 31, pipe arrangement temperature sensor 32, high-pressure pressure sensor 33, low-pressure sensor 34 on compressor, be sent to control part 20a by transmission line 23.
Indoor set 12, communicates with off-premises station 8a through transmission line 22./ stop signal is moved according to remote controller switch 25, control part 21 pairs of pressure fan 10 control, using the temperature conditions set by remote controller (not shown), as control information inlet temperature sensor 35, blowout temperature sensor 36, flue temperature sensor 37, liquid line temperature sensor 38 measured value be sent to control part 20a.Serve as the unified control part 20a controlled of off-premises station 8a, in order to be adjusted to best refrigerant condition according to the measured value of each control information, calculate the command value of the compressor 1 of each off-premises station, outdoor expansion gear 4, indoor expansion gear 11, be sent to each control part 20,21.Control part 20,21, according to the command value of control part 20a, controls carrying equipment.
Represent the control flow chart being used for controlling the indoor expansion gear (expansion valve) of the embodiment of the present invention in figure 3.Start heating operation in step 100 after, in step 101, carry out the operation for making freeze cycle stable.In 102 steps, judge whether the compressor discharge temperature measured by discharge temperature sensor 31 under the stable state of freeze cycle enters in proper range.When not entering proper range (no), be back to step 101.The (YES) when entering proper range, is transferred to step 103.
In step 103, each outlet temperature of the indoor heat converter 9a ~ 9c measured by temperature sensor 38a ~ 38c is remembered in control part 21a ~ 21c respectively.Meanwhile, the temperature of the liquid pipe arrangement 14 of the outdoor pusher side measured by temperature sensor 32 is remembered.Here, the temperature of the liquid pipe arrangement 14 of the outdoor pusher side just worked becomes memory object.Next, step 104 is transferred to.
In step 104, the above-mentioned liquid pipe arrangement temperature of the outdoor pusher side remembered and each outlet temperature of indoor heat converter 9a ~ 9c are compared, judges whether its difference has exceeded certain value.This judgement is " the outlet temperature < α of the liquid pipe arrangement temperature-indoor heat converter of outdoor pusher side ", whether exceedes the certain value α predetermined judge according to temperature gap.Here, in order to judge whether indoor expansion valve aperture is excessively reduced, the liquid pipe arrangement temperature imagining outdoor pusher side is higher than the outlet temperature of indoor heat converter.
The result judged, when temperature gap has exceeded certain value α (no), judge that indoor expansion valve aperture is excessively reduced, be transferred to step 105, indoor expansion valve aperture (valve opening of indoor expansion gear 11) is opened setting A from valve opening (initial value) thitherto.The result judged, when temperature gap does not exceed certain value α (YES), is transferred to step 106, and do not carry out heat exchanger 9 supercooling with changing indoor expansion valve aperture controls (heat hands over supercooling to control).
After the process of step 105,106, be transferred to step 107, after the stipulated time (T second), be back to step 103, repeat above-mentioned process.
In above-mentioned step 104, the outlet temperature of each indoor heat converter is individually compared with the liquid pipe arrangement temperature of outdoor pusher side, is judged, only temperature gap has been exceeded to the indoor heat converter of setting α, its indoor expansion valve aperture is opened setting A.Open setting A by indoor expansion valve aperture from valve opening thitherto, the refrigerant flow of indoor heat converter increases suitable amount, increases at the heat exchange amount of indoor set.
As described above, in the air conditioner of multiple, although multiple indoor set is arranged on various place, as setting place in difference of height, piping length etc. outdoor machine see from regulation scope depart from, then flow to indoor set refrigerant amount reduce possibility high.As refrigerant amount reduces, then reduce at the heat exchange amount of indoor set, increase in the degree of supercooling of indoor heat converter, outlet temperature reduces.According to the result of the judgement of the outlet temperature this reduced in above-mentioned step 104, as temperature gap exceedes setting α, then indoor expansion valve aperture opens setting A from the aperture at initial stage.Therefore, the refrigerant flow of indoor heat converter increases, and increases, be reduced to appropriate value in the degree of supercooling of indoor heat converter at the heat exchange amount of indoor set, and outlet temperature rises.Above-mentioned control one side repeats the whole indoor set of step 103 ~ step 107, in work and carries out.
Like this, machine is outdoor seen to the indoor set departed from from the scope of regulation, can the heat exchange amount of suitably holding chamber inside heat exchanger, suitably control multiple indoor sets of the air conditioner of multiple.
Except the above-mentioned control undertaken by control part, the setting A of the valve opening of above-mentioned indoor expansion gear 11 can also be determined according to the valve opening of the outdoor expansion gear 4 preset by above-mentioned control part.That is, when the valve opening of outdoor expansion gear 4 is large, flow of refrigerant quantitative change is many, so, correspondingly the setting A of the valve opening of indoor expansion gear 11 is set greatly.As setting A is set greatly, due to the refrigerant flow of indoor heat converter 9 can be made to increase, so, for the indoor set that the outlet temperature from the scope disengaging specified, indoor heat converter 9 reduces, degree of supercooling promptly can be made to revert to appropriate value, make outlet temperature increase.
The valve opening of above-mentioned outdoor expansion gear 4, uses outer temperature degree and compressor frequency to preset by above-mentioned control part.As reduced at heating operation China and foreign countries temperature degree, then load increases, so, need the flow making cold-producing medium to increase.Therefore, owing to being make compressor frequency increase increase to make the discharge pressure of compressor, so, correspondingly increase the valve opening of outdoor expansion gear 4.By the valve opening using outer temperature degree and compressor frequency to preset outdoor expansion gear 4 like this, the indoor set that the outlet temperature for indoor heat converter 9 reduces, can make degree of supercooling promptly revert to appropriate value, make outlet temperature increase.
In addition, except above-mentioned control, the inlet temperature that can also measure according to the inlet temperature sensor 35 by each indoor set provides the amount of change (setting A) of the valve opening of above-mentioned indoor expansion gear 11.Namely, by detecting the temperature in indoor set with inlet temperature, the amount of change (setting A) of the valve opening of indoor expansion gear 11 is obtained according to this temperature, can control corresponding to the refrigerant flow of room temperature to indoor heat converter 9, suitably keep the heat exchange amount of the indoor heat converter corresponding to room temperature.
And, in multiple indoor set, the valve opening of which indoor expansion gear is controlled (aperture of setting A controls), and the heat exchanger degree of supercooling measuring saturation temperature that value obtains and indoor heat converter according to the high-pressure pressure sensor 33 from compressor determines.Namely, relative to saturation temperature, in the inappropriate situation of heat exchanger degree of supercooling, such as when heat exchanger degree of supercooling is excessive, judge that the valve opening of the indoor expansion gear of this indoor heat converter reduces excessively, the aperture of carrying out setting A controls, and selects the indoor set that heat exchanger degree of supercooling is large.
In addition, the initial value (adding the valve opening before setting A) of the valve opening of above-mentioned indoor expansion gear, the connection status corresponding to indoor set and off-premises station determines.Namely, when the initial value of valve opening being determined indoor expansion gear by control part, by the execution conditions of the air conditioners such as the correction of adding the pressure loss amount of carrying out according to the piping length of indoor set and off-premises station or the correction carried out according to the difference of height of indoor set and off-premises station, the heat exchange amount of indoor set can be made to become reasonable time and to shorten.Specifically, be located at farther place, the initial value of valve opening of indoor expansion gear of off-premises station in high place has been set large.
In addition, when the valve opening at indoor expansion gear adds that setting A carries out timing, time different, whole indoor sets is implemented, but corrected by the expansion valve opening of the indoor set to the arbitrary number of units of operating 1 ~ total-1, the unwanted opening and closing of indoor expansion valve can be prevented.Control the indoor expansion valve of which indoor set, hand over outlet subcooling according to the heat measuring saturation temperature that value obtains and indoor heat converter from high-pressure, select the indoor expansion valve of the indoor set that degree of supercooling is large.
Represent the key diagram that the change of the valve opening of outdoor and indoor expansion gear is represented in the diagram.In order to make freeze cycle stablize, implement the valve of outdoor expansion gear and indoor expansion gear to be set as the operation of certain aperture.After freeze cycle is stable, outdoor expansion valve is handed over outdoor heat and is overheatedly become certain mode and control, and indoor expansion valve is handed over outlet subcooling to become certain mode with Indoor Thermal and implemented expansion valve and control.(region of decision content has been exceeded) when outdoor expansion valve aperture becomes more than certain aperture, by opening indoor expansion valve aperture, the suitably heat exchange amount of holding chamber inside heat exchanger.
In addition, as the outdoor expansion valve aperture of Fig. 4 being replaced as the judgement of the step 104 of Fig. 3, the result then judged, when temperature gap has exceeded certain value α (no), become and exceeded the region of decision content in the diagram, by the aperture of indoor expansion valve 11 is opened setting A, the suitably heat exchange amount of holding chamber inside heat exchanger.
Be connected in the air conditioner of the multiple of multiple indoor set relative to 1 off-premises station, in order to suitably adjust the heat exchange amount of each indoor set, there is the heat of being undertaken by adjustment indoor expansion valve aperture and surrendering cooling control of making a slip of the tongue.This control is the control making to be in from measuring of being detected by the pressure sensor the being located at compressor discharge side saturation temperature that pressure gauge calculates and indoor heat converter outlet temperature in suitable scope.In this control mode, at air conditioner, state is set, such as, when the difference of height of off-premises station and indoor set departs from imagination scope, suitably can not control heat and hand over outlet subcooling, the valve opening being mounted in the indoor expansion gear in indoor set reduces excessively, and between each indoor set, heat exchange amount does not become suitable.
As detecting because the aperture of indoor expansion valve reduces the deviation of the heat exchange amount between each indoor set excessively caused with good accuracy, make the uniform means of heat exchange quantitative change, use the aperture of the outdoor expansion valve preset according to outer temperature degree and compressor frequency.
The heat exchange amount of outdoor heat converter can calculate according to outer temperature degree, and the cold-producing medium influx to outdoor heat converter is controlled by the aperture of outdoor expansion valve.For this reason, about the cold-producing medium influx to outdoor heat converter, relative to the cold-producing medium influx obtained from compressor frequency, when the difference of cold-producing medium influx that expansion valve opening and outer temperature degree are obtained outdoor has become large, think that indoor expansion valve aperture reduces excessively, deviation is created at the heat exchange amount of indoor heat converter, by opening indoor expansion valve, can the heat exchange amount of suitably holding chamber inside heat exchanger.
In addition, the invention is not restricted to above-described embodiment, comprise various variation.Such as, above-described embodiment is the embodiment in order to easily and in detail understand, is not necessarily limited to the embodiment possessing the whole structure described.In addition, a part for the structure of a certain embodiment can be replaced as the structure of other embodiment, in addition, also can add the structure of other embodiment in the structure of a certain embodiment.In addition, about a part for the structure of each embodiment, can carry out other structure add, remove, displacement.
In addition, above-mentioned each structure, function, handling part, process means etc., also by designing they part or all etc. in such as integrated circuit, by hardware implementing.In addition, above-mentioned each structure, function etc., also explaining by processor, performing program for realizing each function, by software simulating.Realize the information of the program of each function, table, file etc., can be placed in the recording mediums such as tape deck or IC-card, SD card, DVD such as memory, hard disk, SSD (solid state hard disc).
In addition, control line, information wire are the lines required for explanation, are not necessarily limited to have whole control lines, information wire as product.Also can think that in fact most structure is connected to each other.
Description of reference numerals:
1a, 1b ... the compressor of capacity variable type
2a, 2b ... oil eliminator
3a, 3b ... cross valve
4a, 4b ... outdoor expansion gear
5a, 5b ... outdoor heat converter
6a, 6b ... pressure fan
7a, 7b ... reservoir
8a, 8b ... off-premises station
9a, 9b, 9c ... indoor heat converter
10a, 10b, 10c ... indoor blower
11a, 11b, 11c ... indoor expansion gear
12a, 12b, 12c ... indoor set
13 ... gas pipe arrangement
14 ... liquid pipe arrangement
20a, 20b ... off-premises station control part (control part)
21a, 21b, 21c ... indoor set control part (control part)
22 ... transmission line (between off-premises station-indoor set)
23 ... transmission line (between off-premises station)
25 ... remote controller switch
30a, 30b ... outer gas temperature sensor
31a, 31b ... temperature sensor on compressor
32a, 32b ... pipe arrangement temperature sensor (the first temperature sensor)
33a, 33b ... high-pressure pressure sensor
34a, 34b ... low-pressure sensor
35a, 35b, 35c ... inlet temperature sensor
36a, 36b, 36c ... blowout temperature sensor
37a, 37b, 37c ... flue temperature sensor
38a, 38b, 38c ... liquid line temperature sensor (the second temperature sensor)
Claims (6)
1. an air conditioner, this air conditioner will possess compressor by liquid connecting pipings and gas connecting pipings, cross valve, outdoor heat converter, outdoor expansion gear, the off-premises station of outdoor draft fan and outer gas temperature sensor and possess indoor expansion gear, indoor heat converter, multiple indoor sets of indoor blower connect, in above-mentioned off-premises station, above-mentioned compressor, above-mentioned cross valve, above-mentioned outdoor heat converter, and above-mentioned outdoor expansion gear is connected successively by pipe arrangement, above-mentioned outdoor draft fan is to outdoor air-supply, the outer temperature degree of above-mentioned outer gas temperature sensor measurement, in above-mentioned indoor set, above-mentioned indoor expansion gear is connected by pipe arrangement with above-mentioned indoor heat converter, above-mentioned indoor blower is to indoor air-supply, the feature of this air conditioner is:
Be provided with the first temperature sensor that the liquid pipe arrangement temperature of above-mentioned outdoor pusher side is measured, and on the indoor heat converter of above-mentioned each indoor set, be provided with the second temperature sensor that outlet temperature is measured; Possess control part, this control part compares the temperature that two temperatures sensor above-mentioned in heating operation determines, and has exceeded the indoor set of certain value to its difference, controls in the mode valve opening of indoor expansion gear being opened setting (A).
2. air conditioner according to claim 1, is characterized in that:
By above-mentioned control part, determine the setting (A) of the valve opening of above-mentioned indoor expansion gear according to the valve opening of the outdoor expansion gear preset.
3. air conditioner according to claim 2, is characterized in that:
By above-mentioned control part, outer temperature degree and compressor frequency is used to preset the valve opening of above-mentioned outdoor expansion gear.
4. air conditioner according to claim 1, is characterized in that:
By above-mentioned control part, provide the setting (A) of the valve opening of above-mentioned indoor expansion gear according to the inlet temperature of each indoor set, thus the heat exchange amount of suitably holding chamber inside heat exchanger.
5. air conditioner according to claim 1, is characterized in that:
The initial value of the valve opening of above-mentioned indoor expansion gear, the connection status corresponding to indoor set and off-premises station decides.
6. air conditioner according to claim 1, is characterized in that:
By above-mentioned control part, decide the controlled indoor set of valve opening of indoor expansion gear according to the heat exchanger degree of supercooling measuring saturation temperature that value obtains and indoor heat converter from high-pressure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012042884A JP5627620B2 (en) | 2012-02-29 | 2012-02-29 | Air conditioner |
| JP2012-042884 | 2012-02-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103292427A CN103292427A (en) | 2013-09-11 |
| CN103292427B true CN103292427B (en) | 2016-01-13 |
Family
ID=49093726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310053209.XA Active CN103292427B (en) | 2012-02-29 | 2013-02-19 | Air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5627620B2 (en) |
| CN (1) | CN103292427B (en) |
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| JPH09280681A (en) * | 1996-04-17 | 1997-10-31 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JPH11201561A (en) * | 1998-01-09 | 1999-07-30 | Matsushita Refrig Co Ltd | Heat pump type air conditioner |
| WO2006057111A1 (en) * | 2004-11-29 | 2006-06-01 | Mitsubishi Denki Kabushiki Kaisha | Refrigerating air conditioner, operation control method of refrigerating air conditioner, and refrigerant quantity control method of refrigerating air conditioner |
| AU2008211449A1 (en) * | 2007-01-31 | 2008-08-07 | Daikin Industries, Ltd. | Refrigeration apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2536313B2 (en) * | 1991-02-22 | 1996-09-18 | ダイキン工業株式会社 | Operation control device for air conditioner |
| JPH05248715A (en) * | 1992-03-09 | 1993-09-24 | Toshiba Corp | Method for controlling electronic expansion valve for air conditioner |
| JP3334184B2 (en) * | 1992-10-12 | 2002-10-15 | 松下電器産業株式会社 | Multi-room air conditioner |
| JP3170532B2 (en) * | 1993-07-13 | 2001-05-28 | 東芝キヤリア株式会社 | Air conditioner |
| JP3458293B2 (en) * | 1995-02-20 | 2003-10-20 | 松下電器産業株式会社 | Operation control device for multi-room air conditioner |
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- 2012-02-29 JP JP2012042884A patent/JP5627620B2/en active Active
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2013
- 2013-02-19 CN CN201310053209.XA patent/CN103292427B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136068A (en) * | 1994-11-01 | 1996-05-31 | Matsushita Refrig Co Ltd | Air conditioner |
| JPH09170825A (en) * | 1995-12-18 | 1997-06-30 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JPH09280681A (en) * | 1996-04-17 | 1997-10-31 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JPH11201561A (en) * | 1998-01-09 | 1999-07-30 | Matsushita Refrig Co Ltd | Heat pump type air conditioner |
| WO2006057111A1 (en) * | 2004-11-29 | 2006-06-01 | Mitsubishi Denki Kabushiki Kaisha | Refrigerating air conditioner, operation control method of refrigerating air conditioner, and refrigerant quantity control method of refrigerating air conditioner |
| AU2008211449A1 (en) * | 2007-01-31 | 2008-08-07 | Daikin Industries, Ltd. | Refrigeration apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5627620B2 (en) | 2014-11-19 |
| JP2013178058A (en) | 2013-09-09 |
| CN103292427A (en) | 2013-09-11 |
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Effective date of registration: 20160822 Address after: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Patentee after: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Appliances Inc. |
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Effective date of registration: 20180710 Address after: Tokyo, Japan, Japan Patentee after: Hitachi Johnson Controls Air Conditioning Co., Ltd. Address before: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Patentee before: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. |