CN104654667A - Outdoor unit module of multi-split system and multi-split system with outdoor unit module - Google Patents
Outdoor unit module of multi-split system and multi-split system with outdoor unit module Download PDFInfo
- Publication number
- CN104654667A CN104654667A CN201310606752.8A CN201310606752A CN104654667A CN 104654667 A CN104654667 A CN 104654667A CN 201310606752 A CN201310606752 A CN 201310606752A CN 104654667 A CN104654667 A CN 104654667A
- Authority
- CN
- China
- Prior art keywords
- outdoor unit
- oil
- unit modules
- heat exchanger
- line system
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000005057 refrigeration Methods 0.000 claims description 26
- 239000000446 fuel Substances 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 127
- 235000003642 hunger Nutrition 0.000 description 10
- 230000037351 starvation Effects 0.000 description 10
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an outdoor unit module of a multi-split system and the multi-split system with the outdoor unit module. The outdoor unit module of the multi-split air conditioning system comprises: an outdoor heat exchanger; the liquid refrigerant circulation branch pipe is connected with the outdoor unit heat exchanger; a compressor; the refrigerant outlet of the oil separator is connected with the outdoor unit heat exchanger, and the discharge port of the compressor is connected with the refrigerant inlet of the oil separator; the electronic expansion valve is arranged on the liquid refrigerant circulation branch pipe; the outdoor unit module further comprises an oil equalizing pipe, a first end of the oil equalizing pipe is connected with a refrigerating oil outlet of the oil separator, a second end of the oil equalizing pipe is connected to the liquid refrigerant circulation branch pipe, and a second end of the oil equalizing pipe is located between the electronic expansion valve and the outdoor unit heat exchanger. The technical scheme of the invention realizes oil equalization by utilizing the pressure difference of the oil equalizing device, and is simpler in structure compared with the prior art.
Description
Technical field
The present invention relates to changing device technical field, in particular to a kind of multiple on-line system outdoor unit modules and there is its multiple on-line system.
Background technology
At present, in multiple on-line system, during compressor operating, can continuously must be forced out together with cold-producing medium from cylinder and enter in oil eliminator by some refrigeration oil, then complete average mark oil by oil-balancing system.Multiple on-line system has referred to one or more outdoor unit modules and has connected one or more indoor set module.Outdoor unit modules mainly comprises the connecting pipe of compressor, oil eliminator, outdoor unit heat exchanger and necessity, and indoor set module mainly comprises indoor set heat exchanger.Outdoor unit modules is by drain pipeline and guide pipeline and indoor set model calling.When multiple outdoor unit modules is arranged in parallel, when multiple indoor set wired in parallel is arranged, oil balance between multiple outdoor unit modules relies on oil-balancing system to realize, when refrigeration oil can not return the outdoor unit modules of oil starvation continuously, be bound to the compressor caused in the outdoor unit modules of oil starvation pasta decline, until refrigeration oil is exhausted, occur that compressor oil starvation burns phenomenon.So ensure that reliable, the average each outdoor unit modules that is assigned to of refrigeration oil is one of most important problem in multiple on-line system design.At present, the way generally adopted is, for multiplex system, when multiple outdoor unit modules is arranged in parallel, draw an oil balance tube from the oil eliminator bottom of each off-premises station, each oil balance tube is connected to each other again, forms a closed oil circuit, for intrasystem refrigeration oil is evenly distributed in the off-premises station of oil starvation, each oil balance tube needs arrange equal fuel tap, check valve, filter and capillary.Said structure is complicated, in addition, each oil equalizing pipe belongs to external mode, that is, is arranged between each outdoor unit modules, instead of be positioned at the inside of each outdoor unit modules, because of project installation with when running, the external factor such as personnel and nature, cause damage to the outdoor unit modules of multiple on-line system, as external oil equalizing pipe is easily subject to the collision of personnel, and cause system leakage etc.
Summary of the invention
It is simple and have the outdoor unit modules of the multiple on-line system of equal oily effect and have its multiple on-line system that the present invention aims to provide a kind of structure.
To achieve these goals, according to an aspect of the present invention, provide a kind of outdoor unit modules of multiple on-line system, comprising: outdoor unit heat exchanger; Liquid refrigerants circulation arm, is connected with outdoor unit heat exchanger; Compressor; Oil eliminator, the refrigerant exit of oil eliminator is connected with outdoor unit heat exchanger, and the outlet of compressor is connected with the refrigerant import of oil eliminator; Electric expansion valve, is arranged on liquid refrigerants circulation arm; Outdoor unit modules also comprises oil equalizing pipe, and the first end of oil equalizing pipe exports with the refrigeration oil of oil eliminator and is connected, and the second end of oil equalizing pipe is connected on liquid refrigerants circulation arm, and the second end of oil equalizing pipe is between electric expansion valve and outdoor unit heat exchanger.
Further, the refrigeration oil outlet of oil eliminator is positioned at the lower end of this oil eliminator.
Further, oil equalizing pipe is provided with equal fuel tap.
Further, the outdoor unit modules of multiple on-line system of the present invention also comprises: the check valve of the liquid refrigerants only allowing conducting to flow out from outdoor unit heat exchanger, and check valve and the liquid refrigerants arm that circulates is communicated with and is arranged in parallel with electric expansion valve.
Further, the outdoor unit modules of multiple on-line system of the present invention also comprises: subcooler, and be arranged on liquid refrigerants circulation arm, the second end of oil equalizing pipe is between subcooler and outdoor unit heat exchanger.
Further, the outdoor unit modules of multiple on-line system of the present invention also comprises: oil fuel tube, and one end is connected on oil eliminator, and oil fuel tube is provided with fuel feeding valve.
Further, the outdoor unit modules of multiple on-line system of the present invention also comprises: the first filter, and be arranged on liquid refrigerants circulation arm, the first filter bits is between second end and outdoor unit heat exchanger of oil equalizing pipe.
Further, the outdoor unit modules of multiple on-line system of the present invention also comprises: the second filter, and be arranged on liquid refrigerants circulation arm, the second end of oil equalizing pipe is between the second filter and subcooler.
Further, compressor and oil eliminator are multiple, and multiple compressor and multiple oil eliminator connect one to one, and oil equalizing pipe is connected with multiple oil eliminator respectively, and oil equalizing pipe is provided with oil balancer.
According to a further aspect in the invention, provide a kind of multiple on-line system, comprising: the multiple outdoor unit modules be arranged in parallel; The multiple indoor set modules be arranged in parallel, arbitrary indoor set module is connected with arbitrary outdoor unit modules by liquid refrigerants runner pipe and gaseous coolant runner pipe, and outdoor unit modules is the outdoor unit modules of above-mentioned multiple on-line system.
Apply technical scheme of the present invention, when outdoor unit modules is in operation, compressor is in starting state, high pressure is formed fast in each oil eliminator, oil eliminator is connected by oil equalizing pipe and the liquid refrigerants arm that circulates, by outdoor unit modules self pressure difference that formed of multiple on-line system, by in the refrigeration oil press-in liquid refrigerants circulation arm in oil eliminator, and the indoor set heat exchanger of indoor set module is entered with the liquid refrigerant stream in liquid refrigerants circulation arm, because the pressure of the outdoor unit modules of oil starvation is smaller, by the connecting line of indoor set heat exchanger and compressor in each outdoor unit modules refrigeration oil is assigned in the compressor of relative oil starvation and goes (that is refrigeration oil being assigned to the outdoor unit modules of relative oil starvation), thus play equal oily effect.As the above analysis, the outdoor unit modules of multiple on-line system of the present invention utilizes the pressure difference of self to realize all oil, and in structure, hinge structure is fairly simple.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of the outdoor unit modules according to multiple on-line system of the present invention; And
Fig. 2 shows the structural representation of the embodiment according to multiple on-line system of the present invention.
Wherein, the accompanying drawing in above-mentioned figure is as follows:
1, outdoor unit modules; 2, indoor set module; 3, liquid refrigerants runner pipe; 4, gaseous coolant runner pipe; 10, outdoor unit heat exchanger; 11, liquid refrigerants circulation arm; 12, electric expansion valve; 13, subcooler; 14, check valve; 15, the first filter; 16, the second filter; 17, radiator fan; 18, cross valve; 21, compressor; 22, oil eliminator; 23, oil equalizing pipe; 24, equal fuel tap; 26, oil fuel tube; 27, fuel feeding valve.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment comprises outdoor unit heat exchanger 10, liquid refrigerants circulation arm 11, compressor 21, oil eliminator 22, oil equalizing pipe 23 and electric expansion valve 12.Liquid refrigerants circulation arm 11 is connected with outdoor unit heat exchanger 10.Liquid refrigerants circulation arm 11 belongs to a part for the liquid refrigerants runner pipe that outdoor unit heat exchanger 10 is connected with indoor set heat exchanger, outdoor unit heat exchanger 10 and the direct liquid refrigerants runner pipe of indoor set heat exchanger only circulate the refrigerant of post liquefaction, when freezing, outdoor unit heat exchanger 10 serves as condenser, and indoor set heat exchanger serves as evaporimeter; When heating, outdoor unit heat exchanger 10 serves as evaporimeter, and indoor set heat exchanger serves as condenser.The refrigerant exit of oil eliminator 22 is connected with outdoor unit heat exchanger 10, the outlet of compressor 21 is connected with the refrigerant import of oil eliminator 22, the first end of oil equalizing pipe 23 exports with the refrigeration oil of oil eliminator 22 and is connected, second end of oil equalizing pipe 23 is connected on liquid refrigerants circulation arm 11, and the second end of oil equalizing pipe 23 is between electric expansion valve 12 and outdoor unit heat exchanger 10.Electric expansion valve 12 is arranged on liquid refrigerants circulation arm 11.Electric expansion valve 12 can prevent the liquid refrigerants when freezing to be back in outdoor unit heat exchanger 10, affects the efficiency of the outdoor unit modules of the multiple on-line system of the present embodiment.The quantity of compressor 21 and oil eliminator 22 can be one also can be multiple, the quantity of oil equalizing pipe 23 and the quantity of oil eliminator 22 can equal also can not be identical, oil eliminator 22 is connected with at least one compressor 21, multiple compressor 21 is connected in parallel to each other setting, and multiple oil eliminator 22 is connected in parallel to each other setting.Preferably, cross valve 18 is connected with between oil eliminator 22 and outdoor unit heat exchanger 10.
The outdoor unit modules of the multiple on-line system of application the present embodiment, when outdoor unit modules is in operation, compressor is in starting state, high pressure is formed fast in each oil eliminator 22, oil eliminator 22 is connected by oil equalizing pipe 23 and the liquid refrigerants arm 11 that circulates, by outdoor unit modules self pressure difference that formed of multiple on-line system, by in the refrigeration oil press-in liquid refrigerants circulation arm 11 in oil eliminator 22, and enter in the indoor set heat exchanger of indoor set module with the liquid refrigerant stream in liquid refrigerants circulation arm 11, because the pressure of the outdoor unit modules of oil starvation is smaller, by the connecting line of indoor set heat exchanger and compressor 21 in each outdoor unit modules refrigeration oil is assigned in the compressor 21 of relative oil starvation and goes (that is refrigeration oil being assigned to the outdoor unit modules of relative oil starvation), thus play equal oily effect.As the above analysis, the outdoor unit modules of the multiple on-line system of the present embodiment utilizes the pressure difference of self to realize all oil, and in structure, hinge structure is fairly simple.In addition, the oil equalizing pipe 23 of the outdoor unit modules of the multiple on-line system of the present embodiment belongs to built-in mode, can effectively avoid oil equalizing pipe 23 to be subject to the collision of personnel, and causes the situation topics such as system leakage.In addition; because the second end of oil equalizing pipe 23 is between electric expansion valve 12 and outdoor unit heat exchanger 10; therefore; the liquid refrigerants that oil equalizing pipe 23 can realize preventing liquid refrigerants from circulating in arm 11 without the need to arranging extra check valve is back in oil eliminator 22; and then prevent a certain outdoor unit modules from accumulating liquid refrigerants for a long time, cause other outdoor unit modules to lack refrigerant protection etc.
In the present embodiment, the refrigeration oil outlet of oil eliminator 22 is positioned at the lower end of this oil eliminator 22.Like this, can be easier by refrigeration oil press-in liquid refrigerants circulation arm 11 in oil eliminator 22, and in oil eliminator 22, refrigeration oil is all likely pressed in liquid refrigerants circulation arm 11, improves the utilization rate of refrigeration oil.
As shown in Figure 1, in the present embodiment, oil equalizing pipe 23 is provided with equal fuel tap 24.Equal fuel tap 24 is used for realizing the break-make of oil equalizing pipe 23.After outdoor unit modules receives all oil orders, equal fuel tap 24 will be in opening, now, due to the unlatching of equal fuel tap 24, oil eliminator 22 and the liquid refrigerants arm 11 that circulates forms path, refrigeration oil can enter in liquid refrigerants circulation arm 11 smoothly, and flows to indoor set heat exchanger with the liquid refrigerants in liquid refrigerants circulation arm 11.
As shown in Figure 1, the check valve 14 of the liquid refrigerants only allowing conducting to flow out from outdoor unit heat exchanger 10 is also comprised at the outdoor unit modules of the multiple on-line system of the present embodiment, check valve 14 and the liquid refrigerants arm 11 that circulates is communicated with and in parallel with electric expansion valve 12, and the second end of oil equalizing pipe 23 is between check valve 14 and outdoor unit heat exchanger 10.The setting of check valve 14 adds the pipeline that an outdoor unit heat exchanger 10 is communicated with indoor set heat exchanger.
As shown in Figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also comprises subcooler 13, and subcooler 13 is arranged on liquid refrigerants circulation arm 11, and the second end of oil equalizing pipe 23 is between subcooler 13 and outdoor unit heat exchanger 10.Subcooler 13 can adjust the degree of supercooling of liquid refrigerants, improves refrigeration and the heating efficiency of the whole system at the outdoor unit modules place of the multiple on-line system of the present embodiment.
As shown in Figure 1, also comprise oil fuel tube 26 at the outdoor unit modules of the multiple on-line system of the present embodiment, one end of oil fuel tube 26 is connected on oil eliminator 22, oil fuel tube 26 is provided with fuel feeding valve 27.Extra refrigeration oil can be provided to oil eliminator 22 by arranging oil fuel tube 26, lacking refrigeration oil to avoid the outdoor unit modules of whole multiple on-line system.
As shown in Figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also comprises the first filter 15, first filter 15 and is arranged on liquid refrigerants circulation arm 11, and the second end of oil equalizing pipe 23 is between the first filter 15 and outdoor unit heat exchanger 10.First filter 15 can filter the liquid refrigerants flowed out in outdoor unit heat exchanger 10.
As shown in Figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also comprises the second filter 16, second filter 16 and is arranged on liquid refrigerants circulation arm 11, and the second end of oil equalizing pipe 23 is between the second filter 16 and subcooler 13.Second filter 16 can filter the liquid refrigerants flowed out in subcooler 13.
As shown in Figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also comprises radiator fan 17, and radiator fan 17 is corresponding with outdoor unit heat exchanger 10 to be arranged.Can be adjusted the temperature of outdoor unit heat exchanger 10 quickly by radiator fan 17, make the temperature of temperature closer to outside air of outdoor unit heat exchanger 10.
In the present embodiment, compressor 21 and oil eliminator 22 are multiple, and multiple oil eliminator 22 connects one to one with multiple compressor 21, and oil equalizing pipe 23 is connected with multiple oil eliminator 22 respectively, like this, the refrigeration oil in multiple oil eliminator 22 is pooled in oil equalizing pipe 23.Oil equalizing pipe 23 is provided with oil balancer (not shown).Be pooled to the refrigeration oil in oil equalizing pipe 23 under the effect of oil balancer, flow to liquid refrigerants circulation arm 11 uniformly and stably, oil equalizing pipe 23 preferably only has one.
As shown in Figure 2, present invention also provides a kind of multiple on-line system, the multiple on-line system of the present embodiment comprises the multiple outdoor unit modules 1 be arranged in parallel and the multiple outdoor unit modules 1 be arranged in parallel.Arbitrary indoor set module 2 is by liquid refrigerants runner pipe 3(solid line) and gaseous coolant runner pipe 4(dotted line) be connected with arbitrary indoor set module 2, outdoor unit modules 1 is the outdoor unit modules of the multiple on-line system of above-described embodiment.Multiple on-line system structure on the basis of equal oily effect of the present embodiment is simpler.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an outdoor unit modules for multiple on-line system, comprising:
Outdoor unit heat exchanger (10);
Liquid refrigerants circulation arm (11), is connected with described outdoor unit heat exchanger (10);
Compressor (21);
Oil eliminator (22), the refrigerant exit of described oil eliminator (22) is connected with described outdoor unit heat exchanger (10), and the outlet of described compressor (21) is connected with the refrigerant import of described oil eliminator (22);
Electric expansion valve (12), is arranged on described liquid refrigerants circulation arm (11);
It is characterized in that, described outdoor unit modules also comprises oil equalizing pipe (23), the first end of described oil equalizing pipe (23) exports with the refrigeration oil of described oil eliminator (22) and is connected, second end of described oil equalizing pipe (23) is connected on described liquid refrigerants circulation arm (11), and the second end of described oil equalizing pipe (23) is positioned between described electric expansion valve (12) and outdoor unit heat exchanger (10).
2. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, the refrigeration oil outlet of described oil eliminator (22) is positioned at the lower end of this oil eliminator (22).
3. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, described oil equalizing pipe (23) is provided with equal fuel tap (24).
4. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, also comprises:
The check valve (14) of the liquid refrigerants only allowing conducting to flow out from described outdoor unit heat exchanger (10), described check valve (14) and the described liquid refrigerants arm (11) that circulates is communicated with and is arranged in parallel with described electric expansion valve (12).
5. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, also comprises:
Subcooler (13), be arranged on described liquid refrigerants circulation arm (11), the second end of described oil equalizing pipe (23) is positioned between described subcooler (13) and described outdoor unit heat exchanger (10).
6. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, also comprises:
Oil fuel tube (26), one end is connected on described oil eliminator (22), described oil fuel tube (26) is provided with fuel feeding valve (27).
7. the outdoor unit modules of multiple on-line system according to claim 1, is characterized in that, also comprises:
First filter (15), be arranged on described liquid refrigerants circulation arm (11), described first filter (15) is positioned between the second end of described oil equalizing pipe (23) and described outdoor unit heat exchanger (10).
8. the outdoor unit modules of multiple on-line system according to claim 5, is characterized in that, also comprises:
Second filter (16), be arranged on described liquid refrigerants circulation arm (11), the second end of described oil equalizing pipe (23) is positioned between described second filter (16) and described subcooler (13).
9. the outdoor unit modules of multiple on-line system according to claim 1, it is characterized in that, described compressor (21) and described oil eliminator (22) are multiple, described multiple compressor (21) and described multiple oil eliminator (22) connect one to one, described oil equalizing pipe (23) is connected with described multiple oil eliminator (22) respectively, and (23) are provided with oil balancer to described oil equalizing pipe.
10. a multiple on-line system, comprising:
The multiple outdoor unit modules (1) be arranged in parallel;
The multiple indoor set modules (2) be arranged in parallel, arbitrary described indoor set module (2) is connected with arbitrary described outdoor unit modules (1) by liquid refrigerants runner pipe (3) and gaseous coolant runner pipe (4), it is characterized in that, the outdoor unit modules of described outdoor unit modules (1) multiple on-line system according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606752.8A CN104654667B (en) | 2013-11-25 | 2013-11-25 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606752.8A CN104654667B (en) | 2013-11-25 | 2013-11-25 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104654667A true CN104654667A (en) | 2015-05-27 |
| CN104654667B CN104654667B (en) | 2017-11-21 |
Family
ID=53246089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310606752.8A Expired - Fee Related CN104654667B (en) | 2013-11-25 | 2013-11-25 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104654667B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107966A (en) * | 1997-10-06 | 1999-04-20 | Mitsubishi Electric Corp | Air conditioning device |
| JP2003130474A (en) * | 2001-10-19 | 2003-05-08 | Toshiba Kyaria Kk | Refrigeration device |
| CN1485584A (en) * | 2002-08-30 | 2004-03-31 | ������������ʽ���� | Geogrid or mesh structure |
| CN101178272A (en) * | 2006-11-10 | 2008-05-14 | 海尔集团公司 | Air conditioner oil returning system |
| CN202692268U (en) * | 2012-08-02 | 2013-01-23 | 珠海格力电器股份有限公司 | Multi-split modular system |
| CN203083190U (en) * | 2013-03-05 | 2013-07-24 | 昆山台佳机电有限公司 | Multi-compressor efficient set |
| CN103375856A (en) * | 2012-04-27 | 2013-10-30 | 广州科汇成科技服务有限公司 | Frequency conversion multi-connection type central air conditioner |
| CN203586612U (en) * | 2013-11-25 | 2014-05-07 | 珠海格力电器股份有限公司 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
-
2013
- 2013-11-25 CN CN201310606752.8A patent/CN104654667B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107966A (en) * | 1997-10-06 | 1999-04-20 | Mitsubishi Electric Corp | Air conditioning device |
| JP2003130474A (en) * | 2001-10-19 | 2003-05-08 | Toshiba Kyaria Kk | Refrigeration device |
| CN1485584A (en) * | 2002-08-30 | 2004-03-31 | ������������ʽ���� | Geogrid or mesh structure |
| CN101178272A (en) * | 2006-11-10 | 2008-05-14 | 海尔集团公司 | Air conditioner oil returning system |
| CN103375856A (en) * | 2012-04-27 | 2013-10-30 | 广州科汇成科技服务有限公司 | Frequency conversion multi-connection type central air conditioner |
| CN202692268U (en) * | 2012-08-02 | 2013-01-23 | 珠海格力电器股份有限公司 | Multi-split modular system |
| CN203083190U (en) * | 2013-03-05 | 2013-07-24 | 昆山台佳机电有限公司 | Multi-compressor efficient set |
| CN203586612U (en) * | 2013-11-25 | 2014-05-07 | 珠海格力电器股份有限公司 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104654667B (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102087057B (en) | Air conditioning system capable of balancing coolant amount | |
| CN216716628U (en) | Heat exchanger and air conditioner | |
| CN214581751U (en) | Heat exchanger and air conditioner | |
| CN204043101U (en) | A kind of computer-room air conditioning system with heat recovery function | |
| CN105423413A (en) | Refrigerating system of machine room | |
| CN207422716U (en) | Heat pump system and air conditioner with same | |
| CN112082282A (en) | Single-working-medium cascade type brine refrigerating system and cooling system | |
| CN104654666A (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module | |
| CN205079492U (en) | Air conditioning system | |
| CN105865071B (en) | Air-conditioning system | |
| CN203586612U (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module | |
| CN202734081U (en) | Air conditioner | |
| CN208653007U (en) | Refrigeration equipment | |
| CN209622999U (en) | A kind of double cold source heat pipe backboard air conditioning multi-couple units | |
| CN208458162U (en) | A kind of air-conditioning system of data center | |
| CN204329177U (en) | Carry the indoor set of supercooling apparatus | |
| CN217686006U (en) | Throttling heat exchanger and air conditioner | |
| CN203586613U (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module | |
| CN104654665A (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module | |
| CN211600909U (en) | Integrated double-system refrigerating device | |
| TW201546410A (en) | Heat pump for heating and cooling | |
| CN104896777A (en) | Water chilling unit | |
| CN204612222U (en) | There is refrigeration system and the air-conditioner of refrigerating function | |
| CN104654667A (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module | |
| CN203586611U (en) | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171121 |