CN105091413A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN105091413A CN105091413A CN201410189203.XA CN201410189203A CN105091413A CN 105091413 A CN105091413 A CN 105091413A CN 201410189203 A CN201410189203 A CN 201410189203A CN 105091413 A CN105091413 A CN 105091413A
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- flat tube
- heat exchanger
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- limb pipe
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Abstract
The invention discloses a heat exchanger, which comprises a first collecting pipe, a second collecting pipe, a plurality of flat tubes and a plurality of groups of fins, wherein the first collecting pipe and the second collecting pipe are the same in axial directions and vertical directions; two ends of each flat tube are respectively connected with the first collecting pipe and the second collecting pipe, so that a refrigerant passage in the flat tube is respectively communicated with the first collecting pipe and the second collecting pipe, and each flat tube is not provided with a horizontal surface; the fins are provided with parts matched with the cross section shapes of the flat tubes, and are arranged at intervals along the length direction of the flat tubes. According to the heat exchanger of the embodiment of the invention, defrosted water of the heat exchanger cannot accumulate and stay on the surfaces of the flat tubes, but can flow along the surfaces of the flat tubes and drip onto the ground, so that a freezing problem of the flat tubes is avoided, the heat exchanger is enabled not to froze easily, the defrosting time of the heat exchanger is also shortened, frequent start of the defrosting mode of an air conditioner is avoided, and the low temperature heating effect and the working efficiency of the heat exchanger are improved.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, especially relate to a kind of heat exchanger.
Background technology
In prior art, the heat exchanger of air-conditioning, easily there is problem that is icing or frosting in the heat exchanger especially for off-premises station, causes the usefulness of heat exchanger to decline, uses inconvenience, therefore needs to improve.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the present invention needs the heat exchanger proposing a kind of not-easy-to-freeze and frosting, good effect of heat exchange.
According to the heat exchanger of the embodiment of the present invention, comprising: the first and second headers, the axis of described first and second headers is consistent with vertical direction; Multiple flat tube, the two ends of described flat tube are connected so that the coolant channel in described flat tube is communicated with described first and second headers respectively with described first and second headers respectively, and described flat tube does not have horizontal surface; And fin, described fin has the part of mating with the shape of cross section of described flat tube, and described fin is many groups and length direction interval along described flat tube is arranged.
According to the heat exchanger of the embodiment of the present invention, by flat tube being designed to the structure without horizontal surface, the defrosting water of heat exchanger in the accumulation of the surface of flat tube and can not stop, and can flow along the surface of flat tube and drop on ground, thus the problem because flat tube freezes can be avoided, and then ensure that heat exchanger is not easy to freeze, and shorten the defrosting time of heat exchanger, avoid air-conditioning frequent starting defrosting mode, improve low-temperature heating effect and the operating efficiency of heat exchanger, reduce energy consumption.
In addition, according to the heat exchanger of the embodiment of the present invention, also following additional technical feature can be had:
According to one embodiment of present invention, on the cross section of described flat tube, described flat tube has uncovered.
According to one embodiment of present invention, on the cross section of described flat tube, described flat tube has curved portions.
According to one embodiment of present invention, the cross section of described flat tube is semi-circular shape.
According to one embodiment of present invention, on the cross section of described flat tube, described flat tube the second limb pipe of comprising the first limb pipe and being connected with described first limb pipe, described first limb pipe and described second limb pipe and horizontal plane all have angle.
According to one embodiment of present invention, arc transition between described first limb pipe and described second limb pipe.
According to one embodiment of present invention, described first limb pipe and described second limb pipe are with respect to the horizontal plane arranged symmetrically with.
According to one embodiment of present invention, vertically directed vertical limb pipe is connected with between described first limb pipe and described second limb pipe.
According to one embodiment of present invention, often organize described fin and include: the first sub-fin, described first sub-fin has opening portion, fitting away from described uncovered external surface shape of described opening portion and described flat tube; And the second sub-fin, described second sub-fin has protuberance, and the described uncovered inner surface configuration of vicinity of described protuberance and described flat tube is fitted.
According to one embodiment of present invention, the described opening portion on described first sub-fin is multiple and interval is arranged along the vertical direction, and the described protuberance on described second sub-fin is multiple and interval is arranged along the vertical direction.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the heat exchanger according to the embodiment of the present invention;
Fig. 2 is the explosive view of the heat exchanger according to the embodiment of the present invention;
Fig. 3 is the structural representation of the flat tube of heat exchanger according to an embodiment of the invention;
Fig. 4 is the structural representation of the flat tube of heat exchanger in accordance with another embodiment of the present invention.
Reference numeral:
Heat exchanger 100;
Flat tube 10; Uncovered 11; Coolant channel 12; First limb pipe 13; Second limb pipe 14; Vertical limb pipe 15; Curved portions 16;
Fin 20; First sub-fin 21; Opening portion 211; Second sub-fin 22; Protuberance 221.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1 to Fig. 4, the heat exchanger 100 according to the embodiment of the present invention is described.
As shown in Figures 1 to 4, comprise according to the heat exchanger 100 of the embodiment of the present invention: the first header and the second header (scheming not shown), multiple flat tube 10 and fin 20.
Particularly, the first header is consistent with vertical direction with the axis of the second header, and namely the first header and the second header are all vertically arranged.The two ends of flat tube 10 are connected with the second header so that the coolant channel 12 in flat tube 10 is communicated with the second header with the first header respectively with the first header respectively.Alternatively, the coolant channel 12 of many spaced apart distributions can be provided with in flat tube 10, the distribution of refrigerant in flat tube 10 can be made thus more even.Flat tube 10 does not have horizontal surface, that is flat tube 10 does not have the surface paralleled with horizontal plane.
Fin 20 has the part of mating with the shape of cross section of flat tube 10, that is fin 20 can utilize the part matched with the shape of cross section of flat tube 10 to be connected with flat tube 10, fin 20 can play the effect of the heat exchange area increasing flat tube 10, wherein, fin 20 is many groups and many group fins 20 are arranged along the length direction interval of flat tube 10.As depicted in figs. 1 and 2, multiple flat tube 10 can vertically spaced apart setting, and the length direction of flat tube 10 extends in the horizontal direction, and many group fins 20 are connected with corresponding flat tube 10, and organize fin 20 spaced apart setting in the horizontal direction more.
In prior art, for parallel-flow heat exchanger, because its volume is little, efficiency is high, obtain large batch of use.For heat pump type air conditioner, when outdoor environment is in the operating mode of about 0 DEG C, air-conditioning need operate heating mode, and the heat exchanger being arranged on off-premises station, because evaporating temperature is lower than 0 DEG C, can produce a large amount of frosts on heat exchangers.When heat exchanger frosting is to time to a certain degree, air-conditioning can enter defrosting mode, and the frost now on heat exchanger can be melted into water and accumulate on the upper surface of flat tube.And when air-conditioner defrosting terminates to reenter heating mode, the water accumulated on flat tube can freeze very soon, therefore make the efficiency of air-conditioning reduce, and reduce the comfortableness heated.
According to the flat tube 10 of the embodiment of the present invention, because this flat tube 10 does not have horizontal plane, therefore flat tube 10 can not put aside water, the water of thawing can drop in the drip tray on ground or in body along the flowing of the surface of flat tube 10, avoids the possibility that the water after thawing freezes on flat tube 10.Thus, according to the heat exchanger 100 of the embodiment of the present invention, by flat tube 10 is designed to the structure without horizontal surface, the defrosting water of heat exchanger 100 in the accumulation of the surface of flat tube 10 and can not stop, and can flow along the surface of flat tube 10 and drip, thus can avoid causing due to the surperficial resident water of flat tube 10 problem that flat tube 10 freezes, and then ensure that heat exchanger 100 is not easy to freeze, and shorten the defrosting time of heat exchanger 100, avoid air-conditioning frequent starting defrosting mode, improve low-temperature heating effect and the operating efficiency of heat exchanger 100, reduce energy consumption.
In one embodiment of the invention, on the cross section of flat tube 10, flat tube 10 has uncovered 11.Particularly, flat tube 10 can be bent to form various shape, does not have horizontal plane to make flat tube 10.Here it should be explained that, " flat tube 10 has uncovered 11 " refers to, the cross section of flat tube 10 does not form closed annular, and the water of the thawing thus on flat tube 10 can not be deposited in the ring-shaped inner part of flat tube 10, i.e. the inner surface of the vicinity of flat tube 10 uncovered 11 also can not freeze.The shape of flat tube 10 is not particularly limited, and alternatively, on the cross section of flat tube 10, flat tube 10 has curved portions 16.Particularly, what can make flat tube 10 cross section is formed as arc at least partially, and the flat tube at least partially 10 that cross section is formed as arc is curved portions 16, and the quantity of the curved portions 16 of flat tube 10 does not limit.Alternatively, as depicted in figs. 1 and 2, the cross section of flat tube 10 can be semi-circular shape.Particularly, be formed as uncovered 11 of semicircular flat tube 10 opening direction can forward or backwards, the line of the end at the two ends up and down in the cross section of flat tube 10 be roughly parallel with vertical direction.
In another embodiment of the present invention, on the cross section of flat tube 10, flat tube 10 the second limb pipe 14 of comprising the first limb pipe 13 and being connected with the first limb pipe 13, first limb pipe 13 and the second limb pipe 14 all have angle with horizontal plane, particularly, as shown in Figure 3, the first limb pipe 13 and the second limb pipe 14 are inclined relative to horizontal setting.First limb pipe 13 and the second limb pipe 14 are formed as flat part.
First limb pipe 13 and the second limb pipe 14 are connected to form as V-arrangement, the flat tube 10 of this V-arrangement uncovered 11 direction can forward or backwards.Defrosting water on flat tube 10 can flow to below along both surfaces of the first limb pipe 13 be obliquely installed and the second limb pipe 14 due to gravity.Thus, defrosting water can not retain, assemble on flat tube 10, and water can drop on ground along the first limb pipe 13 and the flowing of the second limb pipe 14.Alternatively, curved portions can be provided with, as long as flat tube 10 meets the condition that it does not have horizontal surface at the free end of the first limb pipe 13 and the second limb pipe 14.Such as, flat tube 10 also can be formed as W shape, the shape such as trapezoidal.Such as, the free end being formed as the flat tube 10 of semicircle or arc in cross section can be connected with the first limb pipe 13 and the second limb pipe 14 again.
Alternatively, arc transition between the first limb pipe 13 and the second limb pipe 14.The flowing of the water of thawing between the first limb pipe 13 and the second limb pipe 14 can be made thus more smooth and easy.Particularly, as shown in Figure 3, the part between the first limb pipe 13 and the second limb pipe 14 is formed as arc.
Alternatively, vertically directed vertical limb pipe 15 can be connected with between the first limb pipe 13 and the second limb pipe 14.Particularly, as shown in Figure 4, the cross section of the part flat tube 10 between the first limb pipe 13 and the second limb pipe 14 is formed as rectangle.Preferably, the first limb pipe 13 and vertically arc transition between limb pipe 15, the second limb pipe 14 and vertically arc transition between limb pipe 15.
Alternatively, the first limb pipe 13 and the second limb pipe 14 are with respect to the horizontal plane arranged symmetrically with.The structure of flat tube 10 can be made thus more simple, reasonable, and the layout of flat tube 10 is convenient, outward appearance is beautiful, and can, by the symmetrical structure of flat tube 10, make the distribution of cold-producing medium more even thus.
According to one embodiment of present invention, often organize fin 20 can include: the first sub-fin 21 and the second sub-fin 22.Wherein, the first sub-fin 21 has opening portion 211, opening portion 211 and flat tube 10 away from uncovered 11 external surface shape fit.Second sub-fin 22 has protuberance 221, and protuberance 221 is fitted with the inner surface configuration of the vicinity uncovered 11 of flat tube 10.Flat tube 10 as shown in Figure 1 and the cooperation schematic diagram of fin 20, opening portion 211 and flat tube 10 away from uncovered 11 outer surface be connected, protuberance 221 is connected with the inner surface of the vicinity uncovered 11 of flat tube 10.What fin 20 can be made thus to be connected with the surface of flat tube 10 is more tight, thus the heat transfer effect of heat exchanger 100 is better.
Particularly, the first sub-fin 21 and the second sub-fin 22 can be manufactured by stamping forming mode, thus convenient processing.As shown in Figure 2, first sub-fin 21, flat tube 10 and the second sub-fin 22 are arranged in order, first sub-fin 21 can position with frock and flat tube 10, flat tube 10 and opening portion 211 are fitted tightly, correspondingly, the second sub-fin 22 can position with frock and flat tube 10, and flat tube 10 and protuberance 221 are fitted tightly, weld total is sent into soldering oven, the welded rate of heat exchanger 100 can be ensured like this.Usually in soldering oven, can carry out a welding fabrication by heat exchanger 100, the first sub-fin 21, flat tube 10 and the second sub-fin 22 three can closely be connected in one, and can improve the structural strength of heat exchanger 100 thus.
First sub-fin 21 and the second sub-fin 22 are vertically placed, or the first sub-fin 21 and the second sub-fin 22 are in vertical direction with the angle being less than 45 °, can ensure the water smooth flow on fin 20 thus.First sub-fin 21 can be identical with the quantity of second sub-both fins 22, and certain first sub-fin 21 also can not be identical with both quantity of the second sub-fin 22.First sub-fin 21 can contact with inner surface with the outer surface of flat tube 10 respectively with the second sub-fin 22, and the first sub-fin 20 and the second sub-fin 22 spaced apart setting in the lateral direction of many groups, flat tube 10 extends in the horizontal direction.
Alternatively, as shown in Figure 2, opening portion 211 on first sub-fin 21 is multiple and interval is arranged along the vertical direction, protuberance 221 on second sub-fin 22 is multiple and interval is arranged along the vertical direction, correspondingly, multiple opening portions 211 one_to_one corresponding of outer surface respectively with first on sub-fin 21 of many flat tubes 10 is arranged, multiple protuberances 221 one_to_one corresponding of inner surface respectively with second on sub-fin 22 of many flat tubes 10 is arranged, thus, many flat tube 10 is connected with fin 20, the heat transfer effect of heat exchanger 100 can be made better, and the structure of the first sub-fin and the second sub-fin 22 can be made simpler, easily manufactured.Generally speaking, according to the heat exchanger 100 of the embodiment of the present invention, the surface of the flat tube 10 of heat exchanger 100 can not be put aside and retain moisture content, and heat exchanger 100 is not-easy-to-freeze, and shorten the defrosting time of heat exchanger 100, improve low-temperature heating effect and the operating efficiency of heat exchanger 100.
Be all known for those of ordinary skills according to heat exchanger 100 grade of the embodiment of the present invention and operation, no longer describe in detail here.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a heat exchanger, is characterized in that, comprising:
First and second headers, the axis of described first and second headers is consistent with vertical direction;
Multiple flat tube, the two ends of described flat tube are connected so that the coolant channel in described flat tube is communicated with described first and second headers respectively with described first and second headers respectively, and described flat tube does not have horizontal surface; And
Fin, described fin has the part of mating with the shape of cross section of described flat tube, and described fin is many groups and length direction interval along described flat tube is arranged.
2. heat exchanger according to claim 1, is characterized in that, on the cross section of described flat tube, described flat tube has uncovered.
3. heat exchanger according to claim 2, is characterized in that, on the cross section of described flat tube, described flat tube has curved portions.
4. heat exchanger according to claim 3, is characterized in that, the cross section of described flat tube is semi-circular shape.
5. the heat exchanger according to any one of claim 1-3, it is characterized in that, on the cross section of described flat tube, described flat tube the second limb pipe of comprising the first limb pipe and being connected with described first limb pipe, described first limb pipe and described second limb pipe and horizontal plane all have angle.
6. heat exchanger according to claim 5, is characterized in that, arc transition between described first limb pipe and described second limb pipe.
7. heat exchanger according to claim 5, is characterized in that, described first limb pipe and described second limb pipe are with respect to the horizontal plane arranged symmetrically with.
8. heat exchanger according to claim 7, is characterized in that, is connected with vertically directed vertical limb pipe between described first limb pipe and described second limb pipe.
9. heat exchanger according to claim 2, is characterized in that, often organizes described fin and includes:
First sub-fin, described first sub-fin has opening portion, fitting away from described uncovered external surface shape of described opening portion and described flat tube; And
Second sub-fin, described second sub-fin has protuberance, and the described uncovered inner surface configuration of vicinity of described protuberance and described flat tube is fitted.
10. heat exchanger according to claim 9, is characterized in that, the described opening portion on described first sub-fin is multiple and interval is arranged along the vertical direction, and the described protuberance on described second sub-fin is multiple and interval is arranged along the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189203.XA CN105091413B (en) | 2014-05-06 | 2014-05-06 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189203.XA CN105091413B (en) | 2014-05-06 | 2014-05-06 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
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| CN105091413A true CN105091413A (en) | 2015-11-25 |
| CN105091413B CN105091413B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189203.XA Active CN105091413B (en) | 2014-05-06 | 2014-05-06 | Heat exchanger |
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| Country | Link |
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| CN (1) | CN105091413B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403383A (en) * | 2016-10-25 | 2017-02-15 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning equipment comprising same |
| CN110849194A (en) * | 2018-08-21 | 2020-02-28 | 浙江三花智能控制股份有限公司 | Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube |
| CN111102856A (en) * | 2018-10-25 | 2020-05-05 | 浙江盾安热工科技有限公司 | Micro-channel heat exchanger and flat pipe thereof |
| WO2022143393A1 (en) * | 2020-12-30 | 2022-07-07 | 丹佛斯有限公司 | Heat exchanger |
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| JP2004069228A (en) * | 2002-08-08 | 2004-03-04 | Denso Corp | Heat exchanger |
| JP2006242458A (en) * | 2005-03-02 | 2006-09-14 | Denso Corp | Heat exchanger, heat exchanger core and method of manufacturing heat exchanger |
| EP2410266A1 (en) * | 2009-03-17 | 2012-01-25 | Nippon Light Metal Company, Ltd. | Drainage structure of corrugated fin-type heat exchanger |
| CN203249530U (en) * | 2013-03-25 | 2013-10-23 | 浙江盾安热工科技有限公司 | Microchannel flat tube and heat exchanger with same |
-
2014
- 2014-05-06 CN CN201410189203.XA patent/CN105091413B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004069228A (en) * | 2002-08-08 | 2004-03-04 | Denso Corp | Heat exchanger |
| JP2006242458A (en) * | 2005-03-02 | 2006-09-14 | Denso Corp | Heat exchanger, heat exchanger core and method of manufacturing heat exchanger |
| EP2410266A1 (en) * | 2009-03-17 | 2012-01-25 | Nippon Light Metal Company, Ltd. | Drainage structure of corrugated fin-type heat exchanger |
| CN102356287A (en) * | 2009-03-17 | 2012-02-15 | 日本轻金属株式会社 | Drainage structure of corrugated fin-type heat exchanger |
| CN203249530U (en) * | 2013-03-25 | 2013-10-23 | 浙江盾安热工科技有限公司 | Microchannel flat tube and heat exchanger with same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403383A (en) * | 2016-10-25 | 2017-02-15 | 珠海格力电器股份有限公司 | Heat exchanger and air conditioning equipment comprising same |
| CN110849194A (en) * | 2018-08-21 | 2020-02-28 | 浙江三花智能控制股份有限公司 | Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube |
| CN110849194B (en) * | 2018-08-21 | 2024-03-19 | 浙江三花智能控制股份有限公司 | Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube |
| CN111102856A (en) * | 2018-10-25 | 2020-05-05 | 浙江盾安热工科技有限公司 | Micro-channel heat exchanger and flat pipe thereof |
| CN111102856B (en) * | 2018-10-25 | 2021-12-07 | 浙江盾安热工科技有限公司 | Micro-channel heat exchanger and flat pipe thereof |
| WO2022143393A1 (en) * | 2020-12-30 | 2022-07-07 | 丹佛斯有限公司 | Heat exchanger |
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| Publication number | Publication date |
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| CN105091413B (en) | 2017-10-13 |
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