CN108716762B - Heat exchanger and air conditioner - Google Patents
Heat exchanger and air conditioner Download PDFInfo
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- CN108716762B CN108716762B CN201810373729.1A CN201810373729A CN108716762B CN 108716762 B CN108716762 B CN 108716762B CN 201810373729 A CN201810373729 A CN 201810373729A CN 108716762 B CN108716762 B CN 108716762B
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- 230000007423 decrease Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 15
- 238000005192 partition Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger and an air conditioner, and belongs to the technical field of air conditioners. This heat exchanger includes: one or more fins, the density of which is gradually reduced from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger. According to the heat exchanger, the density of the fins on the air inlet side is smaller than that of the fins on the air outlet side, so that the air resistance of the air inlet side is reduced, the condensed water on the air inlet side is reduced, the air resistance of the heat exchanger is reduced, the air quantity on the air inlet side is increased, the heat exchange efficiency is improved, and the heat exchange effect is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heat exchanger and an air conditioner.
Background
The heat exchanger is a key part for the air conditioner to exchange heat, and the heat exchange efficiency of the heat exchanger is one of important parameters influencing the operation performance of the air conditioner. An existing heat exchanger mostly adopts an equidistant slotted fin structure, as shown in figure 1. The heat exchanger with the structure is easy to form condensed water on the air inlet side of the heat exchanger, and the condensed water forms a water bridge after being gathered, so that the distance between fins is reduced, the air quantity entering the air inlet side of the heat exchanger is reduced, the air quantity on the air outlet side is correspondingly reduced, the heat exchange quantity of the heat exchanger is reduced, and the heat exchange effect of the heat exchanger is influenced.
Disclosure of Invention
The embodiment of the invention provides a heat exchanger and an air conditioner. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a heat exchanger comprising: one or more fins, the density of which is gradually reduced from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
In some alternative embodiments, the density of the fins decreases stepwise from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
Preferably, the one or more fins are divided into one or more partitions, and the length of the plurality of fins in each partition gradually increases from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
Preferably, the one or more fins comprise one or more slotted fins and one or more flat plate fins;
one or more through holes are formed in each crack fin and used for allowing the heat exchange tubes to pass through, and adjacent through holes are communicated through cracks, so that air can flow between the cracks of the adjacent crack fins;
one or more through holes are formed in each flat plate fin and used for passing through a heat exchange tube, and each flat plate fin is arranged between one or more adjacent slotted fins, so that one or more slotted fins between two adjacent flat plate fins form an air circulation area.
Preferably, the longest fin in each of the sections is a flat plate fin.
Preferably, the spacing between adjacent ones of the plate fins is the same.
Preferably, a slit punching sheet is reserved between the through holes of the flat plate fin, the slit punching sheet is formed after being removed, and the slit is communicated with the adjacent through holes.
Preferably, the distance between the adjacent fins is gradually increased from the middle to both sides of the heat exchanger.
Preferably, one or more slotted fins and/or one or more flat plate fins of the heat exchanger are movably arranged, and the distance between the slotted fins and the flat plate fins is adjustable.
According to a second aspect of embodiments of the present invention, there is provided an air conditioner including: any of the above heat exchangers.
According to the heat exchanger disclosed by the embodiment of the invention, the density of the fins on the air inlet side is smaller than that of the fins on the air outlet side, so that the air resistance of the air inlet side is reduced, the condensed water is reduced, the adverse effect caused by the increase of the air resistance of the heat exchanger due to a water bridge formed by the condensed water on the air inlet side is eliminated, the air quantity on the air inlet side is increased, the heat exchange efficiency is improved, and the heat exchange effect is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of a prior art heat exchanger configuration;
FIG. 2 is a schematic diagram of a heat exchanger according to an exemplary embodiment;
FIG. 3 is a schematic diagram of a heat exchanger according to another exemplary embodiment;
FIG. 4 is a schematic front view of a heat exchanger plate fin according to an exemplary embodiment;
fig. 5 is a schematic front view of a heat exchanger plate fin according to another exemplary embodiment.
Reference numerals
In the figure: 1. a heat exchanger; 11. a slotted fin; 12. a plate fin; 13. punching the crack into a sheet; 2. an electric motor.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
Fig. 1 is a schematic diagram of a heat exchanger according to the prior art. As shown in fig. 1, the heat exchanger 1 of the prior art includes one or more slit fins 11 arranged at equal intervals, the motor 2 rotates to drive the fan to rotate, so that air enters the heat exchanger 1 along the direction indicated by the arrow in the figure, the heat exchange tube penetrates through the through holes of the slit fins in the direction perpendicular to the slit fins of the heat exchanger 1, the slits on the slit fins 11 are communicated with the through holes, so that air/wind can flow between the slit fins 11, as shown in fig. 1, on the air inlet side of the heat exchanger 1, condensed water is easy to form, the condensed water film forms a water bridge, so that the interval between the fins is reduced, the wind resistance on the air inlet side is increased, the air inlet amount is reduced, the air amount on the air outlet side is correspondingly reduced, the overall heat exchange amount.
FIG. 2 is a schematic diagram of a heat exchanger according to one embodiment of the present invention, shown in accordance with an exemplary embodiment. As shown in fig. 2, a heat exchanger 1 according to an embodiment of the present invention includes: one or more fins, the density of which is gradually reduced from the air outlet side of the heat exchanger 1 to the air inlet side of the heat exchanger.
In the scheme, the arrow direction is the direction of air/wind, more condensed water is easily gathered at the air inlet side of the heat exchanger, a condensed water film forms a water bridge to reduce the distance between the fins at the air inlet side, the air quantity is reduced, the air quantity at the air outlet side is obviously reduced, and the heat exchange effect of the heat exchanger is influenced. This embodiment reduces from the air-out side to the air inlet side gradually through the fin that sets up the heat exchanger, and the interval crescent reduces the condensate water formation water bridge that the air inlet side caused the negative effects that the fin interval reduces for air/wind reduces at the windage of air inlet side, gets into between the fin of heat exchanger smoothly, and flows out smoothly from the air-out side, improves the circulation of air ability of heat exchanger, improves the heat transfer effect, improves heat exchange efficiency.
In the above solution, the fin may be, for example, a slotted fin 11 adopted in the prior art.
In some alternative embodiments, the density of the fins decreases stepwise from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
Among the above-mentioned scheme, for example, can set up the fin interval and become cascaded degressively from air-out side to air inlet side, set up the fin interval difference at the regional section of difference, install the fin of different density according to the regional section during production, the manufacturing process easily realizes.
By way of example, the spacing between the fins is D1 on the air inlet side of the heat exchanger, D3 on the air outlet side of the heat exchanger, and D2 in the region between the air outlet side of the heat exchanger and the air inlet side of the heat exchanger, where D1 > D2 > D3.
As a further example, the relationship of D1, D2, and D3 is: 3D 1-4D 2-6D 3.
Fig. 3 is a schematic diagram of a heat exchanger according to an embodiment of the present invention, according to another exemplary embodiment. In the heat exchanger according to an embodiment of the present invention, as shown in fig. 3, the one or more fins are divided into one or more partitions, and the length of the plurality of fins in each partition gradually increases from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
According to the scheme, the fin arrangement structure with the step-shaped appearance is formed from the air inlet side to the air outlet side, the fin density on the air inlet side is sparse, the fin density on the air outlet side is higher than that on the air inlet side, so that air/wind can easily enter from the air inlet side and can be diffused among the fins on the air outlet side, the condensation water accumulation on the air inlet side is reduced, the wind resistance of the heat exchanger is reduced, the air inlet amount and the heat exchanger are improved, and the heat exchange efficiency is improved.
In the above solution, the one or more fins include one or more slotted fins 11 and one or more plate fins 12;
one or more through holes are formed in each slit fin 11, the through holes are used for passing through a heat exchange tube, and adjacent through holes are communicated through slits, so that air can flow between the slits of adjacent slit fins 11;
one or more through holes are formed in each of the plate fins 12, the through holes are used for passing through a heat exchange tube, and each of the plate fins 12 is arranged between one or more adjacent slotted fins 11, so that one or more slotted fins 11 between two adjacent plate fins 12 form an air circulation area.
Fig. 4 is a schematic structural view of a plate fin of a heat exchanger according to an embodiment of the present invention, shown according to an exemplary embodiment. As shown in fig. 4, in the plate fin of the heat exchanger according to the embodiment of the present invention, compared to the conventional slotted fin structure, there is no slot between the through holes.
As an example, a plurality of slotted fins are arranged in each partition, and the length of the longest fin, namely the flat plate fin is a; the length of the shortest slotted fin is b, the partition length of the fin is c, and the numerical relationship among a, b and c is as follows:
2/3*c≥a-b≥1/2*c
in the scheme, when the length difference of the fins is large, the length of the shorter-length fin in each subarea is too short, so that the heat exchange quantity of the heat exchanger is influenced; when the length difference of the fins is small, effective gradient cannot be formed, and condensed water is easy to form; the length difference of the fins of each subarea is not less than 1/2 of the length of each subarea and not more than 2/3 of the length of each subarea according to the formula, so that the shortest length of the fins in the subareas is not shorter to influence the heat exchange effect, and the gradient is not smaller to form condensed water.
In the above solution, the longest fin in each of the partitions is a flat plate fin 12. The plate fins 12 are used as partitioned spacer fins. One or more slit fins 11 are arranged between the plate fins 12, for example, the slit fins and the plate fins can be installed in parallel, heat exchange tubes are installed in through holes of the slit fins and the plate fins, the plate fins have no slits, air circulates between each slit fin between two plate fins, so that independent air circulation areas are formed between two adjacent plate fins, one or more air circulation areas formed by every two plate fins are formed in the direction perpendicular to the air flow direction of the heat exchanger, and air flows in each air circulation area. Compared with the air flow direction of the heat exchanger in the prior art shown in the figure 1, for the heat exchanger which is formed by the existing slit fins, the heat exchanger in the embodiment of the invention can effectively improve the air quantity loss at two sides caused by the transverse flow of air at two sides of the heat exchanger, optimize the air circulation path, improve the heat exchange effect of the heat exchanger and improve the heat exchange efficiency.
In the above aspect, as an example, the distances between the adjacent flat plate fins are the same. The fins of each adjacent plate are equally spaced so as to form one or more identical air flow-through regions so that the air contact with the fins of each air flow-through region is evenly distributed. The transverse flow of the air quantity on the two sides is improved, especially the air flow paths on the two sides of the heat exchanger are optimized, the integral heat exchange effect of the heat exchanger is improved, and the heat exchange efficiency is improved.
Fig. 5 is a schematic structural view of a plate fin of a heat exchanger according to an embodiment of the present invention, shown according to another exemplary embodiment. As shown in fig. 5, in the heat exchanger according to an embodiment of the present invention, a slit punch is reserved between the through holes of the plate fins, the slit punch is formed after being removed, and the slit communicates with the adjacent through holes.
In the above example, the slit punched sheets are reserved between the through holes of the plate fins, and after the slit punched sheets are removed, the structure identical to that of the slit fins is formed.
In the above aspect, as another example of the fin arrangement, a distance between adjacent slotted fins gradually increases from the middle to both sides of the heat exchanger.
Above-mentioned mode of arranging of heat exchanger fin because air/wind is drawn close to the intermediate position by the both sides of heat exchanger for in the heat exchanger intermediate position, the lateral flow of air/wind is less, and in the heat exchanger both sides, the lateral flow of air/wind is more obvious, sets up less crack fin interval in both sides, does benefit to the windage that reduces the heat exchanger both sides, increases the amount of wind of heat exchanger both sides, makes the heat transfer volume increase of heat exchanger both sides, improves heat exchange efficiency, improves the heat transfer effect.
As another example, the distance between the adjacent flat plate fins gradually decreases from the middle to both sides of the heat exchanger.
Because the air/wind is drawn close to the middle position from the two sides of the heat exchanger, the transverse flow of the air/wind is smaller at the middle position of the heat exchanger, and the transverse flow of the air/wind is more obvious at the two sides of the heat exchanger.
In the heat exchanger according to each of the above exemplary embodiments, one or more of the slotted fins and/or one or more of the plate fins of the heat exchanger are movably mounted, and the pitch is adjustable. Each crack fin and/or flat plate fin is not fixedly installed and can transversely move along the through hole, so that the distance between the fins can be adjusted, the heat exchanger is suitable for air conditioners in different installation environments and different performance parameters, and the universality of the heat exchanger is improved.
According to a second aspect of embodiments of the present invention, there is provided an air conditioner including: any of the above heat exchangers.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Claims (10)
1. A heat exchanger, comprising:
the density of the slit fins is gradually reduced from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger;
a plurality of plate fins, each of said plate fins being disposed between adjacent ones of said slotted fins such that a plurality of said slotted fins between two adjacent ones of said plate fins form an air flow area.
2. The heat exchanger of claim 1, wherein the slotted fins decrease in density in a stepwise manner from an air outlet side of the heat exchanger to an air inlet side of the heat exchanger.
3. The heat exchanger of claim 1 or 2, wherein the plurality of fin slots are divided into one or more sections, and wherein the length of the plurality of fin slots in each section increases from the air outlet side of the heat exchanger to the air inlet side of the heat exchanger.
4. The heat exchanger as claimed in claim 3, wherein one or more through holes are provided in each of the slitted fins for passing through a heat exchange tube, adjacent ones of the through holes communicating through the slits, so that air can pass between the slits of adjacent ones of the slitted fins;
one or more through holes are formed in each flat plate fin and used for allowing the heat exchange tubes to pass through.
5. The heat exchanger of claim 4, wherein the longest fins in each of the sections are flat plate fins.
6. The heat exchanger according to claim 4 or 5, wherein the spacing between adjacent plate fins is the same.
7. The heat exchanger as claimed in claim 4 or 5, wherein slit punched pieces are reserved between the through holes of the plate fins, and the slits are formed after the slit punched pieces are removed, and the slits communicate with the adjacent through holes.
8. The heat exchanger according to claim 1, 2, 4 or 5, wherein the distance between the adjacent slotted fins is gradually increased from the middle to both sides of the heat exchanger.
9. The heat exchanger of claim 4, wherein a plurality of said slotted fins and/or a plurality of said plate fins of said heat exchanger are movably mounted with adjustable spacing.
10. An air conditioner characterized by comprising the heat exchanger of claim 1 or 2 or 4 or 5 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373729.1A CN108716762B (en) | 2018-04-24 | 2018-04-24 | Heat exchanger and air conditioner |
| PCT/CN2018/117922 WO2019205621A1 (en) | 2018-04-24 | 2018-11-28 | Heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373729.1A CN108716762B (en) | 2018-04-24 | 2018-04-24 | Heat exchanger and air conditioner |
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| Publication Number | Publication Date |
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| CN108716762A CN108716762A (en) | 2018-10-30 |
| CN108716762B true CN108716762B (en) | 2020-08-25 |
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| CN201810373729.1A Active CN108716762B (en) | 2018-04-24 | 2018-04-24 | Heat exchanger and air conditioner |
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| CN (1) | CN108716762B (en) |
| WO (1) | WO2019205621A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716762B (en) * | 2018-04-24 | 2020-08-25 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
| CN109373797B (en) * | 2018-12-03 | 2024-06-04 | 珠海格力电器股份有限公司 | Heat exchange tube, heat exchanger and air conditioner |
| CN110500811B (en) * | 2019-08-02 | 2024-09-06 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
| CN111412691B (en) * | 2020-03-13 | 2021-09-07 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioner |
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| CN102003907A (en) * | 2010-11-19 | 2011-04-06 | 高克联管件(上海)有限公司 | Heat transfer tube for improving tube bundle effect |
| CN106931538A (en) * | 2017-03-10 | 2017-07-07 | 海信（山东）空调有限公司 | A kind of finned heat exchanger component and air-conditioner |
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| GB9201326D0 (en) * | 1992-01-22 | 1992-03-11 | Northampton Refrigeration Comp | Refrigerated cabinet |
| JPH05240534A (en) * | 1992-02-28 | 1993-09-17 | Showa Alum Corp | Heat exchanger |
| EP1485661B1 (en) * | 2002-02-28 | 2010-06-23 | Lg Electronics Inc. | Heat exchanger for refrigerator |
| KR100511969B1 (en) * | 2003-01-13 | 2005-09-02 | 엘지전자 주식회사 | Air-conditioner |
| JP2005106328A (en) * | 2003-09-29 | 2005-04-21 | Sanden Corp | Heat exchanging device |
| US7073573B2 (en) * | 2004-06-09 | 2006-07-11 | Honeywell International, Inc. | Decreased hot side fin density heat exchanger |
| CN2731386Y (en) * | 2004-07-28 | 2005-10-05 | 陆亚俊 | Outdoor wide/narrow sheet and fin-like heat exchanger of air source heat pump |
| WO2013123144A1 (en) * | 2012-02-14 | 2013-08-22 | Delphi Technologies, Inc. | Evaporator having separate air flow paths and method of manufacturing the same |
| US9377250B2 (en) * | 2012-10-31 | 2016-06-28 | The Boeing Company | Cross-flow heat exchanger having graduated fin density |
| CN103438745B (en) * | 2013-09-17 | 2016-04-13 | 杭州三花微通道换热器有限公司 | A kind of heat exchanger and fin thereof |
| KR20150094954A (en) * | 2014-02-12 | 2015-08-20 | 엘지전자 주식회사 | A heat exchanger |
| CN105674537A (en) * | 2014-11-17 | 2016-06-15 | 天津纳百川冷暖设备有限公司 | Heat exchanger for air conditioner |
| CN106017161A (en) * | 2016-07-05 | 2016-10-12 | 天津商业大学 | Variable-fin-spacing type plate-fin heat exchanger |
| CN206440153U (en) * | 2017-01-13 | 2017-08-25 | 浙江康盛股份有限公司 | A kind of pipe wing micro-channel heat exchanger |
| CN108716762B (en) * | 2018-04-24 | 2020-08-25 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
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2018
- 2018-04-24 CN CN201810373729.1A patent/CN108716762B/en active Active
- 2018-11-28 WO PCT/CN2018/117922 patent/WO2019205621A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003907A (en) * | 2010-11-19 | 2011-04-06 | 高克联管件(上海)有限公司 | Heat transfer tube for improving tube bundle effect |
| CN106931538A (en) * | 2017-03-10 | 2017-07-07 | 海信（山东）空调有限公司 | A kind of finned heat exchanger component and air-conditioner |
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| Publication number | Publication date |
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| WO2019205621A1 (en) | 2019-10-31 |
| CN108716762A (en) | 2018-10-30 |
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Effective date of registration: 20201103 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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