CN106403397A - Heat exchanger, air-conditioning outdoor unit and air-conditioner - Google Patents
Heat exchanger, air-conditioning outdoor unit and air-conditioner Download PDFInfo
- Publication number
- CN106403397A CN106403397A CN201610834323.XA CN201610834323A CN106403397A CN 106403397 A CN106403397 A CN 106403397A CN 201610834323 A CN201610834323 A CN 201610834323A CN 106403397 A CN106403397 A CN 106403397A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air
- pipe group
- out liquid
- inlet manifold
- 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.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 17
- 239000003507 refrigerant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 230000001340 slower Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
Abstract
The invention discloses a heat exchanger, an air-conditioning outdoor unit and an air-conditioner. The heat exchanger comprises an air input header (1), a liquid output header (2) and multiple heat exchange pipes (3) connected between the air input header (1) and the liquid output header (2). The multiple heat exchange pipes (3) are in an arc shape and are arranged at intervals in the radial direction. The air input header (1) and the liquid output header (2) extend in the radial directions of the heat exchange pipes (3). According to the heat exchanger, the machining difficulty of the heat exchanger can be reduced, and meanwhile the heat exchange efficiency of the heat exchanger is effectively improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of heat exchanger, air-conditioner outdoor unit and air-conditioner.
Background technology
Existing air-conditioning indoor heat exchanger profile is rectangle, and when outdoor fan runs, the air-supply face of fan is circle, makes
Become indoor heat exchanger a big chunk region air quantity rationally not utilized, and then affect the heat exchange efficiency of whole heat exchanger.
In Application No. " 201510911474.6 ", the middle promulgated by the State Council of invention entitled " a kind of single-screw micro-channel condenser "
A kind of condenser is disclosed, the structure of this condenser is in bright patent application：Heat radiating flat tube coils structure from inside to outside in the shape of a spiral
Become spiral core, feed liquor header is arranged on the initial end of heat radiating flat tube, goes out the tail end that liquid header is arranged on heat radiating flat tube, dissipate
The interval of hot flat tube coiling is provided with fin, is provided with support below spiral core.
The structure of the condenser in this application is spiral type, hence in so that the shape of condenser can substantially with the giving of fan
Wind face matches, and can effectively improve the heat exchange efficiency of condenser.But this spiral condenser structure is complex, it is difficult to add
Work, and condenser is single coil configuration, and flow process is longer, and in coolant flow process, the heat exchange efficiency decay of coolant is very fast,
Will be a greater impact to the overall heat exchange efficiency of condenser.
Content of the invention
The purpose of the present invention is to propose to a kind of heat exchanger, air-conditioner outdoor unit and air-conditioner, the processing of heat exchanger can be reduced
Difficulty, effectively improves the heat exchange efficiency of heat exchanger simultaneously.
According to an aspect of the invention, it is provided a kind of heat exchanger, including inlet manifold, go out liquid collector and be connected to into
Gas collector and go out multiple heat exchanger tubes between liquid collector, multiple heat exchanger tubes are arc, and radially interval setting, air inlet collection
Manage and go out liquid collector all to extend along the direction that is radially arranged of heat exchanger tube.
Preferably, inlet manifold and go out liquid collector multiple heat exchanger tubes are divided into first pipe group and second pipe group, first pipe
Group is located at inlet manifold and the first side going out liquid collector, and second pipe group is located at inlet manifold and the second side going out liquid collector.
Preferably, inlet manifold is located in first straight line with going out liquid collector, and first pipe group and second pipe group are with respect to first
Straight line is symmetrical arranged.
Preferably, first pipe group and second pipe group are multiple rows of, and multiple rows of first pipe group and multiple rows of second pipe group are along inlet manifold
Correspond setting with the width going out liquid collector or be arranged alternately.
Preferably, first pipe group and second pipe group are projected as multiple concentric circulars on the axial direction of first pipe group.
Preferably, the inlet tube of inlet manifold and the outlet going out liquid collector are copper pipe, and heat exchanger tube is stainless steel tube.
Preferably, heat exchanger tube be flat tube, and each heat exchanger tube radially from inside to outside section be incremented by.
According to a further aspect in the invention, there is provided a kind of air-conditioner outdoor unit, including housing, air inlet, air outlet and axle
Flow fan, air-conditioner outdoor unit also includes above-mentioned heat exchanger, and heat exchanger is located between aerofoil fan and air inlet.
Preferably, the center of heat exchanger and the center of aerofoil fan are arranged concentrically.
In accordance with a further aspect of the present invention, there is provided a kind of air-conditioner, including air-conditioner outdoor unit, this air-conditioner outdoor unit is upper
The air-conditioner outdoor unit stated.
The heat exchanger of the present invention, including inlet manifold, goes out liquid collector and is connected to inlet manifold and goes out between liquid collector
Multiple heat exchanger tubes, multiple heat exchanger tubes are arc, and radially interval setting, inlet manifold and go out liquid collector all along heat exchanger tube
Radial direction extend.Due to the radially spaced setting of multiple heat exchanger tubes, and each heat exchanger tube is both connected to inlet manifold and goes out liquid
Between collector, therefore can form multiple refrigerant passages being arranged in parallel so that coolant can simultaneously via multiple heat exchanger tubes from
Inlet manifold flows to out liquid collector, simplifies the processing structure of heat exchanger tube, reduces the difficulty of processing of heat exchanger tube, shorten and change
The refrigerant flow path of heat pipe, can effectively improve the heat exchange efficiency of heat exchanger tube, improve the heat exchange efficiency of heat exchanger.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the heat exchanger of the embodiment of the present invention；
Fig. 2 is the structural representation of the air-conditioner outdoor unit of the embodiment of the present invention.
Description of reference numerals：1st, inlet manifold；2nd, go out liquid collector；3rd, heat exchanger tube；4th, first pipe group；5th, second pipe group；6、
Housing；7th, air outlet；8th, air inlet；9th, aerofoil fan；10th, installing rack.
Specific embodiment
In the following detailed description, a large amount of specific detail are proposed, in order to provide thorough understanding of the present invention.But,
Even if it will be understood by those within the art that not having these specific detail can implement the present invention yet.In other cases, not in detail
Carefully well-known method, process, assembly and circuit are described, in order to avoid impact the understanding of the present invention.
In following embodiments of the present invention, with the orientation in Fig. 1 as reference azimuth, with the radial direction of heat exchanger tube as inlet manifold
With the length direction going out liquid collector, with vertical paper direction for inlet manifold and the width going out liquid collector.
In conjunction with shown in Figure 1, according to embodiments of the invention, heat exchanger includes inlet manifold 1, goes out liquid collector 2 and connect
It is connected on inlet manifold 1 and goes out multiple heat exchanger tubes 3 between liquid collector 2, multiple heat exchanger tubes 3 are arc, and are radially spaced
Setting, inlet manifold 1 all extends along the direction that is radially arranged of heat exchanger tube 3 with going out liquid collector 2.
Due to the radially spaced setting of multiple heat exchanger tubes 3, and each heat exchanger tube 3 is both connected to inlet manifold 1 and goes out liquid collector 2
Between, therefore can form multiple refrigerant passages being arranged in parallel so that coolant can simultaneously via multiple heat exchanger tube 3 from air inlet
Collector 1 flows to out liquid collector 2, simplifies the processing structure of heat exchanger tube 3, reduces the difficulty of processing of heat exchanger tube 3, shorten and change
The refrigerant flow path of heat pipe 3, can effectively improve the heat exchange efficiency of heat exchanger tube 3, and then improve the heat exchange efficiency of heat exchanger.
Inlet manifold 1 and go out liquid collector 2 multiple heat exchanger tubes 3 are divided into first pipe group 4 and second pipe group 5, first pipe group 4
Positioned at inlet manifold 1 and the first side going out liquid collector 2, second pipe group 5 is located at inlet manifold 1 and the second side going out liquid collector 2.
Heat exchanger tube 3 is divided into two pipe groups, two pipe groups can be enable to be respectively formed refrigerant passage so that coolant more
Quickly and easily flow to out liquid collector 2 from inlet manifold 1, improve the flow efficiency of coolant, and then improve changing of coolant
The thermal efficiency.
Inlet manifold 1 is located in first straight line with going out liquid collector 2, and first pipe group 4 and second pipe group 5 are with respect to first straight line
It is symmetrical arranged so that being located at inlet manifold 1 and going out the first pipe group 4 of liquid collector 2 both sides and second pipe group 5 can have identical
Specification, more equalizes with the coolant going out the flowing of liquid collector 2 both sides from inlet manifold 1, heat exchange is more uniform, the heat exchange being correspondingly arranged
The heat exchange process of pipe 3 is more identical, and more preferably, more preferably, therefore heat exchange efficiency is higher for gas-liquid mixed effect for coolant distribution effects.
Preferably, inlet manifold 1 and go out liquid collector 2 and vertically place, can make full use of the state change of coolant.In gaseous state
After inlet manifold 1 enters into heat exchanger heat exchange, part gaseous coolant is cooled to liquid refrigerants to coolant, then in action of gravity
Under can converge enough liquid refrigerants along heat exchanger tube 3 landing to going out in liquid collector 2 so that going out in liquid collector 2, and expanded
Export to indoor evaporator after the throttle parts such as valve, and the uncolled gaseous coolant for liquid then can float up to inlet manifold 1
Interior, hence in so that going out mixed with gaseous coolant, to ensure that out that the coolant state of liquid collector 2 output is liquid in liquid collector 2.
The expanded throttling of liquid refrigerants flowed out from heat exchanger can be had more preferably with room air after entering into indoor evaporator
Heat exchange efficiency, improve whole air-conditioning operational efficiency.
Preferably, first pipe group 4 and second pipe group 5 are multiple rows of, and multiple rows of first pipe group 4 and multiple rows of second pipe group 5 are along air inlet
Collector 1 corresponds setting with the width going out liquid collector 2 or is arranged alternately.Width essence first pipe group 4 herein
Axially extending direction with second pipe group 5.Because the arrangement mode of heat exchanger tube can be multiple, therefore can be according to heat exchanger tube
Exchange capability of heat is selecting suitable arrangement mode it is ensured that heat exchanger has preferably heat exchange efficiency.
Preferably, first pipe group 4 and second pipe group 5 are projected as multiple concentric circulars on the axial direction of first pipe group 4.The
One pipe group 4 and second pipe group 5 can be single or multiple rows of.Because first pipe group 4 and second pipe group 5 are in first pipe group 4
Axial direction on be projected as multiple concentric circulars, the profile of the heat exchange structure that heat exchanger tube formed therefore can be made to have and fan
The circle matching, can make the air quantity of fan obtain more sufficiently effective utilization, improve the heat exchange efficiency of heat exchanger.
In the present embodiment, the inlet tube of inlet manifold 1 and the outlet going out liquid collector 2 are copper pipe, and heat exchanger tube 3 is stainless
Steel pipe.Wherein by the inlet tube of inlet manifold 1 and go out liquid collector 2 outlet be set to copper pipe be for the ease of with air-conditioner
Other pipelines are attached, and improve joint efficiency, other structures in addition adopt rustless steel, are due to stainless cost
Relatively cheap, technical maturity, the outer non-finned of stainless steel tube simultaneously, stainless steel heat exchange tube can be made to play maximum heat exchange efficiency.
The specification of stainless steel heat exchange tube is as follows：Internal diameter is Φ 1- Φ 10mm, and wall thickness is 0.1-2.0mm.Wherein heat exchanger tube can be flat tube,
It can also be pipe.
Preferably, heat exchanger tube 3 be flat tube, and each heat exchanger tube 3 radially from inside to outside section be incremented by.Due near heat exchanger
The flow process of the heat exchanger tube 3 at center is shorter, and the flow process away from the heat exchanger tube 3 at heat exchanger center is longer, if both of which adopts phase
Same circulation area, necessarily leads to the refrigerant circulation speed in the heat exchanger tube of central side, and in the heat exchanger tube of outer circumferential side
Refrigerant circulation speed is slower, is thus easily caused each heat exchanger tube heat exchange efficiency radially and differs larger, impact is changed
The overall efficiency of hot device, therefore make each heat exchanger tube 3 radially from inside to outside section be incremented by it is possible to accelerate outer circumferential side heat exchanger tube
The flow velocity of interior coolant, slows down the refrigerant flow rate in the heat exchanger tube of central side so that being located at center and the periphery of heat exchanger
Heat exchanger tube in the heat exchange efficiency of coolant can be consistent, improve the work efficiency of heat exchanger on the whole.This heat exchanger tube 3
Can also be pipe, each heat exchanger tube 3 can also uiform section setting.
In conjunction with shown in Figure 2, according to embodiments of the invention, air-conditioner outdoor unit includes housing 6, air inlet 8, air outlet
7 and aerofoil fan 9, air-conditioner outdoor unit also includes above-mentioned heat exchanger, and heat exchanger is located between aerofoil fan 9 and air inlet 8.?
At air inlet 8, can also air-inlet grille be set so that air intake can be more uniform, improve the heat exchange efficiency of heat exchanger.In this reality
Apply in example, air-conditioner outdoor unit is blown using negative-pressure air-suction mode, air-conditioning air intake efficiency can be made higher, air and heat exchanger
Heat exchange efficiency higher.
It is fixedly connected by installing rack 10 between the heat exchanger tube 3 of heat exchanger most peripheral and housing 6, installing rack 10 can be many
Individual, and the circumference along heat exchanger tube 3 is evenly arranged, thus ensureing that installation settings in housing 6 for the heat exchanger tube 3 is more reliable and more stable,
It is more uniformly stressed.Installing rack 10 can be support bar or gripper shoe, or other support attachment structure.
Preferably, the center of heat exchanger and the center of aerofoil fan 9 are arranged concentrically.Shape and axle stream wind due to heat exchanger
Fan 9 matches, can make the heat exchange area of heat exchanger obtain significantly more efficient using so that the heat exchange efficiency of heat exchanger obtains relatively
Big lifting.
According to embodiments of the invention, air-conditioner includes air-conditioner outdoor unit, and this air-conditioner outdoor unit is that above-mentioned air-conditioning is outdoor
Machine.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for this
The those skilled in the art in field, according to the thought of the present invention, all will change in specific embodiments and applications,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a kind of heat exchanger is it is characterised in that including inlet manifold (1), going out liquid collector (2) and be connected to described inlet manifold
(1) and described go out liquid collector (2) between multiple heat exchanger tubes (3), the plurality of heat exchanger tube (3) is arc, and radially
Interval setting, described inlet manifold (1) and described go out liquid collector (2) all along described heat exchanger tube (3) be radially arranged direction extend.
2. heat exchanger according to claim 1 it is characterised in that described inlet manifold (1) and described go out liquid collector (2) will
Multiple described heat exchanger tubes (3) are divided into first pipe group (4) and second pipe group (5), and described first pipe group (4) is located at described air inlet collection
Pipe (1) and described go out liquid collector (2) the first side, described second pipe group (5) positioned at described inlet manifold (1) and described go out liquid collection
Second side of pipe (2).
3. heat exchanger according to claim 2 it is characterised in that described inlet manifold (1) and described go out liquid collector (2) position
In first straight line, described first pipe group (4) and described second pipe group (5) are symmetrical arranged with respect to described first straight line.
4. heat exchanger according to claim 2 is it is characterised in that described first pipe group (4) and described second pipe group (5) are
Multiple rows of, multiple rows of described first pipe group (4) and multiple rows of described second pipe group (5) along described inlet manifold (1) and described go out liquid collector
(2) width corresponds setting or is arranged alternately.
5. heat exchanger according to claim 2 is it is characterised in that described first pipe group (4) and described second pipe group (5) exist
It is projected as multiple concentric circulars on the axial direction of described first pipe group (4).
6. heat exchanger according to claim 1 it is characterised in that the inlet tube of described inlet manifold (1) and described go out liquid
The outlet of collector (2) is copper pipe, and described heat exchanger tube (3) is stainless steel tube.
7. heat exchanger according to claim 1 is it is characterised in that described heat exchanger tube (3) is flat tube, and each described heat exchanger tube
(3) radially section is incremented by from inside to outside.
8. a kind of air-conditioner outdoor unit, including housing (6), air inlet (8), air outlet (7) and aerofoil fan (9) it is characterised in that
Described air-conditioner outdoor unit also includes the heat exchanger any one of claim 1 to 7, and described heat exchanger is located at described axle stream wind
Between fan (9) and described air inlet (8).
9. air-conditioner outdoor unit according to claim 8 is it is characterised in that the center of described heat exchanger and described aerofoil fan
(9) center is arranged concentrically.
10. a kind of air-conditioner, including air-conditioner outdoor unit it is characterised in that described air-conditioner outdoor unit is described in claim 8 or 9
Air-conditioner outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834323.XA CN106403397A (en) | 2016-09-20 | 2016-09-20 | Heat exchanger, air-conditioning outdoor unit and air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834323.XA CN106403397A (en) | 2016-09-20 | 2016-09-20 | Heat exchanger, air-conditioning outdoor unit and air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106403397A true CN106403397A (en) | 2017-02-15 |
Family
ID=57997168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610834323.XA Pending CN106403397A (en) | 2016-09-20 | 2016-09-20 | Heat exchanger, air-conditioning outdoor unit and air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106403397A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989440A (en) * | 2017-05-11 | 2017-07-28 | 青岛易图令科技有限公司 | Disk hanging type indoor machine and air-conditioning |
| CN107388623A (en) * | 2017-08-30 | 2017-11-24 | 合肥美的暖通设备有限公司 | Control method, control system and the heat pump of electric expansion valve |
| CN111156614A (en) * | 2018-11-08 | 2020-05-15 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner outdoor unit |
| CN111219795A (en) * | 2018-11-27 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Fixing device and fixing method of heat exchanger and air conditioner |
| CN112963990A (en) * | 2017-09-12 | 2021-06-15 | 浙江盾安机械有限公司 | Bottom heat exchanger and heat pump water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB920836A (en) * | 1959-09-04 | 1963-03-13 | Head Wrightson & Co Ltd | Improvements in and relating to tubular heat exchangers |
| JPH0979777A (en) * | 1995-09-12 | 1997-03-28 | Hitachi Ltd | Fin-tube type heat exchanger and apparatus |
| CN101918783A (en) * | 2007-12-13 | 2010-12-15 | 卡梅伦国际有限公司 | Heat exchanger |
| CN203758101U (en) * | 2014-02-20 | 2014-08-06 | 河南机电高等专科学校 | Finned-tube heat exchanger |
| CN205261993U (en) * | 2015-12-11 | 2016-05-25 | 河南新科隆电器有限公司 | Little micro -channel condenser of single spiral |
-
2016
- 2016-09-20 CN CN201610834323.XA patent/CN106403397A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB920836A (en) * | 1959-09-04 | 1963-03-13 | Head Wrightson & Co Ltd | Improvements in and relating to tubular heat exchangers |
| JPH0979777A (en) * | 1995-09-12 | 1997-03-28 | Hitachi Ltd | Fin-tube type heat exchanger and apparatus |
| CN101918783A (en) * | 2007-12-13 | 2010-12-15 | 卡梅伦国际有限公司 | Heat exchanger |
| CN203758101U (en) * | 2014-02-20 | 2014-08-06 | 河南机电高等专科学校 | Finned-tube heat exchanger |
| CN205261993U (en) * | 2015-12-11 | 2016-05-25 | 河南新科隆电器有限公司 | Little micro -channel condenser of single spiral |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989440A (en) * | 2017-05-11 | 2017-07-28 | 青岛易图令科技有限公司 | Disk hanging type indoor machine and air-conditioning |
| CN107388623A (en) * | 2017-08-30 | 2017-11-24 | 合肥美的暖通设备有限公司 | Control method, control system and the heat pump of electric expansion valve |
| CN112963990A (en) * | 2017-09-12 | 2021-06-15 | 浙江盾安机械有限公司 | Bottom heat exchanger and heat pump water heater |
| CN112963990B (en) * | 2017-09-12 | 2022-09-06 | 浙江盾安机械有限公司 | Bottom heat exchanger and heat pump water heater |
| CN111156614A (en) * | 2018-11-08 | 2020-05-15 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner outdoor unit |
| CN111156614B (en) * | 2018-11-08 | 2021-06-25 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner outdoor unit |
| CN111219795A (en) * | 2018-11-27 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Fixing device and fixing method of heat exchanger and air conditioner |
| CN111219795B (en) * | 2018-11-27 | 2021-07-06 | 宁波奥克斯电气股份有限公司 | Fixing device and fixing method of heat exchanger and air conditioner |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |