CN107036343A - Throttle regulator control system, air conditioner and throttling regulation and control method - Google Patents
Throttle regulator control system, air conditioner and throttling regulation and control method Download PDFInfo
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- CN107036343A CN107036343A CN201710359022.0A CN201710359022A CN107036343A CN 107036343 A CN107036343 A CN 107036343A CN 201710359022 A CN201710359022 A CN 201710359022A CN 107036343 A CN107036343 A CN 107036343A
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- throttling
- electrically
- controlled valve
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Classifications
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of throttling debugging system, air conditioner and throttling regulation and control method, the throttling debugging system, including the main line being connected between refrigerant inlet pipeline and refrigerant exit pipeline, it is characterised in that：Multiple throttling units being sequentially connected are provided with main line, each throttling unit is electrically connected with the control unit whether controllable throttling unit accesses debugging system, to control different throttling units sequentially to access debugging system.Air conditioner and throttling regulation and control method use above-mentioned throttling debugging system.The inventive structure is simple, by the access of different throttling units, realizes conveniently throttling debugging.
Description
Technical field
The invention belongs to the throttling regulation and control field in the field that throttles, more particularly to a kind of use capillary.
Background technology
At present, constant speed air-conditioning is mainly throttled by capillary, in product development process, optimal is to obtain
System ability, generally requires manually to adjust the length of capillary.Adjustment is required for tearing outer machine open machine changing different length every time
The capillary of degree, replacing will also carry out vacuumizing air conditioner after finishing, and refill refrigerant.This process is not only time-consuming,
And it is laborious.It is highly detrimental to debugging, the exploitation of Rapid Product.
A kind of air-conditioner throttling capillary matching component, the sky are disclosed in the U of Chinese utility model patent CN 204513863
Adjust throttle capillary tube matching component, including enter interface tube, go out interface tube and capillary, it is described enter interface tube be connected with collector, institute
Interface tube is stated out provided with capillary market-head, one end connection capillary market-head of the capillary, the other end passes through stop valve and collection
Pipe is connected.
Above-mentioned existing patent, although it can be solved when changing capillary, and the original capillary without dismantling passes through switching
Stop valve on matching component is that can be achieved, still, and it, it is necessary to consider all specifications, is changed every time when accessing capillary
It is random irregular, it is complicated and less efficient.
The content of the invention
, should the invention provides a kind of throttling debugging system, air conditioner and throttling regulation and control method in order to solve the above problems
Inventive structure is simple, by the access of different throttling units, realizes conveniently throttling debugging.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of throttling debugging system, including the main line being connected between refrigerant inlet pipeline and refrigerant exit pipeline, it is main
Multiple throttling units being sequentially connected are provided with pipeline, each throttling unit, which is electrically connected with controllable throttling unit, is
The control unit of no access debugging system, to control different throttling units sequentially to access debugging system.
As the further optimization of the present invention, each throttling unit includes throttle capillary tube and connects the section
The electrically-controlled valve at capillary outlet end is flowed, described control unit is electrically connected with to control the opening and closing of electrically-controlled valve with the electrically-controlled valve.
As the further optimization of the present invention, the electrically-controlled valve has an import, two outlets and a control end,
The import of the electrically-controlled valve is connected to the throttle capillary tube, and one of outlet of the electrically-controlled valve is connected on main line,
Another outlet is connected with bypass line, and the port of export of the bypass line is connected to refrigerant exit pipeline, the electrically-controlled valve
Control end is connected to control unit, and control unit controls the opening and closing of electrically-controlled valve；When the electrically-controlled valve is opened, refrigerant flows into described
Main line, when the electrically-controlled valve is closed, refrigerant flows into the bypass line.
As the further optimization of the present invention, the throttle capillary tube length is differed.
As the further optimization of the present invention, described control unit includes controller and the institute being electrically connected with electrically-controlled valve
State controller electric connection signal adapter and with the signal adapter be electrically connected with input instruction can be converted to control
The PC of signal processed；The output end of the controller is connected to the electrically-controlled valve control end of each throttling unit, the control
Device controls the opening and closing of the different electrically-controlled valves according to the control signal of signal adapter.
A kind of air conditioner, including refrigerant inlet pipeline and refrigerant exit pipeline, the refrigerant inlet pipeline and refrigerant exit
Above-mentioned throttling regulator control system is installed between pipeline.
One kind throttling regulation and control method, using throttling regulator control system described above, comprises the following steps：Throttling regulation and control system is installed
Unite in device to be debugged；The controller control inputted at PC ends in initial order, control unit is close with refrigerant inlet pipeline
Throttling unit access；Plant running to be debugged is opened, according to the running state parameter of device to be debugged, the throttling of access is judged
Whether unit is suitable, such as suitable, then stops debugging；It is such as improper, then continue next step；At PC ends according to close to refrigerant inlet
The order of pipeline sequentially inputs the instruction of throttling unit access system, according to the running state parameter of device to be debugged, judges successively
Whether the throttling unit of access is suitable, such as improper, then sequentially re-enters；Such as suitable, then stopping debugging.
Compared with prior art, advantages and positive effects of the present invention are：
1st, throttling regulator control system of the invention, it can be in the case of device to be debugged be non-stop-machine, and remote control is realized
The different throttling unit of access, the debugging more convenient and quicker of throttling；
2nd, throttling of the invention regulation and control method, by being segmented being sequentially ingressed into for throttling unit, more precisely.
Brief description of the drawings
Fig. 1 is the schematic diagram of throttling debugging device of the present invention；
Fig. 2 is the flow chart of throttling debugging method of the present invention.
Above in each figure：1st, refrigerant inlet pipeline；2nd, refrigerant exit pipeline；3rd, main line；4th, throttling unit；41st, throttle
Capillary；42nd, electrically-controlled valve；43rd, bypass line；5th, control unit；51st, PC ends；52nd, signal adapter；53rd, controller.
Embodiment
Below, the present invention is specifically described by exemplary embodiment.It should be appreciated, however, that not entering one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
In the description of the invention, it is necessary to explanation, the instruction such as term " interior ", " outer ", " on ", " under ", "front", "rear"
Orientation or position relationship be based on position relationship shown in the drawings, be for only for ease of description the present invention and simplify description, and
It is not instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it can not manage
Solve to indicate or imply relative importance.Meanwhile, in invention, import and the outlet of pipeline are determined according to the direction for flowing through liquid
Justice, that is, flow through liquid initiating terminal for import, and it is outlet to flow through liquid destination terminal.
The invention provides a kind of throttling debugging system, its specific embodiment as shown in figure 1, the throttling debugging system bag
When including the main line 3 being connected between refrigerant inlet pipeline 1 and refrigerant exit pipeline 2, i.e. refrigerant inflow, from refrigerant inlet pipeline
1 flows into refrigerant exit pipeline 2 by main line 3.Wherein, multiple throttling lists being sequentially connected are arranged at intervals with main line 3
Member 4, each throttling unit 4 is electrically connected with the control unit 5 whether controllable throttling unit 4 accesses debugging system, to control
Make different throttling units and sequentially access debugging system, so that system is optimal state.Herein it should be noted that throttling is single
Member access debugging system refers to that refrigerant is from refrigerant inlet pipeline by throttling unit to refrigerant exit pipeline.
Continue as shown in figure 1, each throttling unit 4 includes throttle capillary tube 41 in above-mentioned, and is connected to institute
The electrically-controlled valve 42 of the port of export of throttle capillary tube 41 is stated, described control unit 5 is electrically connected with automatically controlled to control with the electrically-controlled valve 42
The opening and closing of valve.The electrically-controlled valve 42 has an import, two outlets and a control end, and the import of the electrically-controlled valve 42 connects
The throttle capillary tube 41 is connected to, one of outlet of the electrically-controlled valve 42 is connected on main line 3, another outlet connection
There is bypass line 43, the bypass line 43 is connected to refrigerant exit pipeline 2, and the control end of the electrically-controlled valve 42 is connected to control
Unit 5, control unit 5 controls the opening and closing of electrically-controlled valve 42；When the electrically-controlled valve 42 is opened, refrigerant flows into the main line 2, institute
When stating the closing of electrically-controlled valve 42, refrigerant flows into the bypass line 43.That is, in above-mentioned, it is respectively mounted between adjacent throttle capillary tube
There is an electrically-controlled valve, the throttle capillary tube end of least significant end is connected with an electrically-controlled valve, when control unit control electrically-controlled valve is opened,
Refrigerant flows into main line, that is, enters to next throttle capillary tube；When control unit controls closed electromagnetic valve, refrigerant is flowed into
Bypass line, so as to block the access of the lower branch throttle capillary tube of the throttle capillary tube, by the design of the program, is realized
The length of throttle capillary tube access is debugged in the case of non-stop-machine, must be close to system optimal ability so as to quickly, accurately obtain
Capillary pipe length, accelerate the development progress of product.
Wherein, in the present invention, the length of throttle capillary tube 41 may be the same or different, preferably, and throttle hair
The length of tubule 41 is incremented by successively, by this kind of scheme, can the optimization length that is accessed to throttle capillary tube of fast searching.
In above-mentioned, control unit 5 includes the controller 53 being electrically connected with the electrically-controlled valve 42 and the electricity of the controller 53
Property connection signal adapter 52 and with the signal adapter 52 be electrically connected with input instruction can be converted to control signal
PC 51.The output end of the controller 53 is connected to the control end of electrically-controlled valve 42 of each throttling unit 4, the control
Device 53 controls the opening and closing of the different electrically-controlled valves 42 according to the control signal of signal adapter 52.
Simultaneously in order that different throttling units, can be numbered, number information is stored in by operation more simple and convenient
Setting is programmed in controller, such system engineer can directly input desired capillary pipe length, controller at PC ends
Pass through programme-control, the desired throttle capillary tube length of intelligence access.
As shown in fig. 1, in the specific embodiment of the invention, it is shown on main line and is provided with four throttling units altogether, can
With understanding, the quantity of throttling unit is not limited to the numerical value in this specific embodiment, and the quantity of throttling unit can also be according to reality
Border situation is adjusted.
In order to illustrate to be more convenient, we define throttling unit in the Fig. 1 from left to right (i.e. from close to refrigerant inlet pipeline
Start at) first throttle unit, the second throttling unit, the 3rd throttling unit and the 4th throttling unit are followed successively by, wherein each throttling
Electrically-controlled valve and bypass line in unit are divided into first, second, third and fourth corresponding to the throttling unit.
During using throttling debugging system of the invention, control instruction is inputted at PC ends first, control first segment is such as merely entered
Flow unit and enter debugging, then the input instruction at PC ends sequentially passes through signal adapter and controller, the first electrically-controlled valve of control is closed,
The second electrically-controlled valve, the 3rd electrically-controlled valve and the 4th electrically-controlled valve is preferably controlled to open simultaneously, herein the 4th electrically-controlled valve of especially needed control
Open, to prevent refrigerant from being flow backwards by bypass line；By above-mentioned control, then only process first throttle capillary then flows the refrigerant
Go out to refrigerant exit pipeline；Access first throttle unit and the second throttling unit are such as needed, then control unit controls the first electrically-controlled valve
Open, the second electrically-controlled valve is closed, the 3rd electrically-controlled valve and the 4th electrically-controlled valve are opened, and refrigerant then flows through the first capillary and the second capillary
Pipe, and refrigerant exit pipeline is flowed into by the second bypass line.Other throttling units are accessed, its mode as above, is repeated no more.
Present invention also offers a kind of air conditioner, such as Fig. 1, it includes refrigerant inlet pipeline 1 and refrigerant exit pipeline 2, institute
State and above-mentioned throttling regulator control system is installed between refrigerant inlet pipeline 1 and refrigerant exit pipeline 2.Meanwhile, because at present using throttling
The air conditioner that capillary is throttled predominantly fixed frequency air conditioner, therefore, air conditioner herein is preferably fixed frequency air conditioner.In the present invention
In, inventor is improved for the throttling debugging system of air conditioner, and other parts are not done with any improvement, because
This, other indispensable systems of air conditioner are known to those skilled in the art, will not be described here.
In above-mentioned, elaborate, will not be described here for throttling regulator control system.The throttling regulator control system of the present invention
It can be applied in the product that refrigerator etc. needs throttling arrangement.
In addition, further as shown in Fig. 2 present invention also offers one kind throttling regulation and control method, using above-mentioned throttling to adjust
Control system, comprises the following steps：
Above-mentioned throttling regulator control system is installed in device to be debugged, the device to be debugged can be air conditioner, or refrigerator
Deng；
Initial order is inputted at PC ends, control unit controls the throttling unit close with refrigerant inlet pipeline to access, i.e., on
The first throttle unit stated in citing is accessed in device to be debugged；
Plant running to be debugged is opened, according to the running state parameter of device to be debugged, judging the throttling unit of access is
It is no suitable, it is such as suitable, then stop debugging；It is such as improper, then continue next step；Herein it should be noted that suitable standard
According to the existing specification of this area, specifically judge that the determination methods at this can be artificial basis by its systematic parameter fed back
The judgement of parameter, or the judge module prestored in system are judged that its concrete mode is not limited herein, its criterion of acceptability
And qualification parameters are not also limited in the present invention；
Access system instruction is sequentially input according to close to refrigerant inlet pipeline order at PC ends, according to the fortune of device to be debugged
Row state parameter, judges whether the throttling unit of access is suitable successively, such as improper, then sequentially re-enters；As properly, then stopped
Only debug.
Method, concrete example explanation are regulated and controled according to above-mentioned throttling：Referring to Fig. 1, and assume to apply Fig. 1 into air conditioner,
It is shown in Fig. 1 on main line and is provided with four throttling units altogether, in order to illustrate to be more convenient, we defines the throttling in the Fig. 1
Unit from left to right (i.e. from close to refrigerant inlet pipeline start at) be followed successively by first throttle unit, the second throttling unit, Section three
Unit and the 4th throttling unit are flowed, its regulation and control method is specially：First in PC ends input control first throttle unit access air-conditioning
The instruction of device, then the closing of the first electrically-controlled valve of control unit control, then opens air conditioner, by the operational factor for observing air conditioner
To further determine that whether the access of first throttle unit is suitable, i.e., air conditioner operation whether is set to be optimal state；It is such as suitable,
Then stop debugging, it is such as improper, then the second throttling unit of access, the 3rd throttling unit and Section four are sequentially inputted at PC ends again
The instruction of unit is flowed, according to the running state parameter of device to be debugged, judges whether the throttling unit of access is suitable successively, if not
Properly, then sequentially re-enter；Such as suitable, then stopping debugging.
The above-mentioned throttling regulation and control method of the present invention, is accessed by the way that existing throttling unit is segmented, can be more precisely efficiently complete
Into throttling debugging.
Claims (7)
1. a kind of throttling debugging system, including the main line being connected between refrigerant inlet pipeline and refrigerant exit pipeline, it is special
Levy and be：Multiple throttling units being sequentially connected are provided with main line, each throttling unit is electrically connected with controllable
Whether throttling unit accesses the control unit of debugging system, to control different throttling units sequentially to access debugging system.
2. throttling debugging system according to claim 1, it is characterised in that：Each throttling unit includes throttling hair
The electrically-controlled valve of tubule and the connection throttle capillary tube port of export, described control unit is electrically connected with to control with the electrically-controlled valve
The opening and closing of electrically-controlled valve processed.
3. throttling debugging system according to claim 2, it is characterised in that：The electrically-controlled valve have import, two
Outlet and a control end, the import of the electrically-controlled valve are connected to the throttle capillary tube, the electrically-controlled valve one of them
Outlet is connected on main line, and another outlet is connected with bypass line, and the port of export of the bypass line is connected to refrigerant and gone out
Mouth pipeline, the control end of the electrically-controlled valve is connected to control unit, and control unit controls the opening and closing of electrically-controlled valve；The electrically-controlled valve is opened
Qi Shi, refrigerant flows into the main line, and when the electrically-controlled valve is closed, refrigerant flows into the bypass line.
4. the throttling debugging system according to Claims 2 or 3, it is characterised in that：The throttle capillary tube length is differed.
5. throttling debugging system according to claim 1, it is characterised in that：Described control unit includes electrical with electrically-controlled valve
The controller of connection, the signal adapter being electrically connected with the controller and the general being electrically connected with the signal adapter
Input instruction is converted to the PC of control signal；The output end of the controller is connected to the electrically-controlled valve of each throttling unit
Control end, the controller controls the opening and closing of the different electrically-controlled valves according to the control signal of signal adapter.
6. a kind of air conditioner, including refrigerant inlet pipeline and refrigerant exit pipeline, it is characterised in that：The refrigerant inlet pipeline and
Throttling regulator control system any one of claim 1-5 is installed between refrigerant exit pipeline.
7. one kind throttling regulation and control method, usage right requires the regulator control system that throttled any one of 1-5, it is characterised in that：Bag
Include following steps：
Throttling regulator control system is installed in device to be debugged；
The controller inputted at PC ends in initial order, control unit controls the throttling unit close with refrigerant inlet pipeline to connect
Enter；
Plant running to be debugged is opened, according to the running state parameter of device to be debugged, judges whether the throttling unit of access closes
It is suitable, it is such as suitable, then stop debugging；It is such as improper, then continue next step；
The instruction of throttling unit access system is sequentially input according to the order close to refrigerant inlet pipeline at PC ends, according to dress to be debugged
The running state parameter put, judges whether the throttling unit of access is suitable successively, such as improper, then sequentially re-enters；As closed
It is suitable, then stop debugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359022.0A CN107036343A (en) | 2017-05-19 | 2017-05-19 | Throttle regulator control system, air conditioner and throttling regulation and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710359022.0A CN107036343A (en) | 2017-05-19 | 2017-05-19 | Throttle regulator control system, air conditioner and throttling regulation and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107036343A true CN107036343A (en) | 2017-08-11 |
Family
ID=59539299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710359022.0A Pending CN107036343A (en) | 2017-05-19 | 2017-05-19 | Throttle regulator control system, air conditioner and throttling regulation and control method |
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| Country | Link |
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| CN (1) | CN107036343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269159A (en) * | 2018-08-21 | 2019-01-25 | 青岛海尔股份有限公司 | Single system refrigeration system and refrigeration equipment |
| CN110160288A (en) * | 2019-04-26 | 2019-08-23 | 青岛海尔空调器有限总公司 | A kind of tooling of determining target capillary |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243311A (en) * | 2001-02-20 | 2002-08-28 | Fujitsu General Ltd | Air conditioner |
| CN101493274A (en) * | 2009-02-17 | 2009-07-29 | 海信（山东）空调有限公司 | Air conditioner |
| CN201377944Y (en) * | 2009-04-03 | 2010-01-06 | 海信（山东）空调有限公司 | Capillary flow regulating device |
| CN203785344U (en) * | 2014-02-18 | 2014-08-20 | 珠海格力电器股份有限公司 | Capillary matching device |
| CN204513863U (en) * | 2014-12-19 | 2015-07-29 | 深圳麦克维尔空调有限公司 | Air-conditioner throttling capillary matching component |
-
2017
- 2017-05-19 CN CN201710359022.0A patent/CN107036343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243311A (en) * | 2001-02-20 | 2002-08-28 | Fujitsu General Ltd | Air conditioner |
| CN101493274A (en) * | 2009-02-17 | 2009-07-29 | 海信（山东）空调有限公司 | Air conditioner |
| CN201377944Y (en) * | 2009-04-03 | 2010-01-06 | 海信（山东）空调有限公司 | Capillary flow regulating device |
| CN203785344U (en) * | 2014-02-18 | 2014-08-20 | 珠海格力电器股份有限公司 | Capillary matching device |
| CN204513863U (en) * | 2014-12-19 | 2015-07-29 | 深圳麦克维尔空调有限公司 | Air-conditioner throttling capillary matching component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269159A (en) * | 2018-08-21 | 2019-01-25 | 青岛海尔股份有限公司 | Single system refrigeration system and refrigeration equipment |
| CN110160288A (en) * | 2019-04-26 | 2019-08-23 | 青岛海尔空调器有限总公司 | A kind of tooling of determining target capillary |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 266000 No. 151 Zhuzhou Road, Laoshan District, Qingdao City, Shandong Province Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266000 Haixin Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170811 |
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| RJ01 | Rejection of invention patent application after publication |