CN103162563A - Heat exchanger - Google Patents
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- CN103162563A CN103162563A CN2013100769194A CN201310076919A CN103162563A CN 103162563 A CN103162563 A CN 103162563A CN 2013100769194 A CN2013100769194 A CN 2013100769194A CN 201310076919 A CN201310076919 A CN 201310076919A CN 103162563 A CN103162563 A CN 103162563A
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Abstract
The invention provides a heat exchanger. The heat exchanger is provided with a plurality of fins which are mutually separated with prescribed intervals and configured in a stacking mode and heat exchanging tubes which penetrate through the fins along the stacking direction of the plurality of fins, wherein the fins are provided with a plurality of slit parts punched along the stacking direction, and the plurality of silt parts are parallelly arranged along the flow direction of gas, guiding parts for guiding the gas to flow are arranged on inlet ends and/or outlet ends of the plurality of slit parts of the fins corresponding to the gas. The guiding parts of the gas located in the inlet ends of the plurality of silt parts play a gas flow guiding role and guide the gas to attach to the walls of the heat exchanging tubes and the surfaces of the fins to flow, heat exchanging effect is improved. The guiding parts of the gas located in the inlet ends of the plurality of silt parts can conduct rectification on turbulent flow flowing through the plurality of silt parts, and play a role of stablizing wake flow, and therefore wake flow vortex is reduced.
Description
Technical field
The present invention relates to a kind of heat exchanger.
Background technology
The ability of air-conditioning and the performance of heat exchanger are closely related, and the performance of heat exchanger and fin are closely related, and this fin mainly comprises plate fin, corrugated fin, crack fin etc., and wherein the crack fin is most widely used.Rationally improving under the prerequisite of a fin pitch of fins, optimized fin structure, the heat exchange property of crack fin is better than corrugated fin.
At present, the crack fin has the calking forms such as single bridge, doube bridge, X-type, and different calking forms determines the quality of fin heat exchange property.X-type crack fin is applicable to little spacing of fin, and large spacing of fin causes exchange capability of heat to descend, yet under little spacing of fin, the heat exchanger of unit length needs more fin, causes the complete machine cost to rise.Simultaneously, under little spacing of fin, also there is resistance increment in X-type crack fin, the Air Flow hard problem.
Summary of the invention
In view of this, main purpose of the present invention is, a kind of heat exchanger of improving heat transfer effect and reducing the water heater cost of being conducive to is provided.
For achieving the above object, the present invention proposes a kind of heat exchanger, have a plurality of fins that are spaced from each other predetermined distance and laminated configuration and the heat exchanger tube that connects described fin along the stacked direction of described a plurality of fins, described fin has along a plurality of slit portions of die-cut of described stacked direction, and these a plurality of slit portions are arranged side by side along the flow direction of gas, at the guide part that on described fin, the entrance point on described a plurality of slit portions and/or the port of export are provided with to guide gas flow corresponding to gas.
In the present invention, at the guide part that on described fin, the entrance point on described a plurality of slit portions and/or the port of export are provided with to guide gas flow corresponding to gas, wherein, be positioned at gas and play the air-flow guiding function at the guide part of the entrance point of described a plurality of slit portions, guiding gas is close to described heat exchange tube wall or fin surface flows, and is conducive to improve heat transfer effect; Be positioned at gas and can carry out rectification to the turbulent flow after the described a plurality of slit portion of flowing through at the guide part of the port of export of described a plurality of slit portions, play stable wake flow, be conducive to reduce the wake flow whirlpool.
Preferably, described a plurality of slit portion comprises the first slit portion that the datum level with respect to described fin projects upwards and with respect to the datum level of described fin outstanding the second slit portion downwards, described the first slit portion and the second slit portion are arranged alternately along the flow direction of gas.
Because described the first slit portion and the second slit portion flow direction along gas is arranged alternately, can form respectively the gas passage that supplied gas flows through in the two sides of described fin side, can effectively destroy the boundary layer of gas, be conducive to improve heat transfer effect.
Preferably, consist of the first slot set by at least two described the first slit portions of adjacent setting, consist of the second slot set by at least two described the second slit portions of adjacent setting, described the first slot set and the second slot set are arranged alternately along the flow direction of gas.
Preferably, described the first slit portion and the second slit portion are in wave shape, and in described the first slot set and the second slot set, the first slit portion of adjacent setting and the crest of the second slit portion interlace out.Adopt said structure can form more gas passage, can effectively destroy the boundary layer of gas by these a plurality of gas passages, be conducive to improve heat transfer effect.
Preferably, in described the first slot set and the second slot set, the crest of described the first slit portion and the second slit portion increases gradually along the flow direction of described gas respectively.
Adopt said structure, can form respectively more gas passage in the two sides of described fin side, and make formed gas passage along the stepped distribution of the flow direction of gas, can effectively destroy the boundary layer of gas, enhanced heat exchange can be accelerated the gas disturbance, is conducive to improve heat transfer effect.
Preferably, described a plurality of slit portion is side-prominent and arrange along the flow direction of described gas and be X-shaped towards the one side of described fin.
Preferably, described guide part is the 3rd slit portion along die-cut of described stacked direction, the 3rd slit portion and described a plurality of slit portion are arranged side by side, described the 3rd slit portion with respect to the projecting height of the datum level of described fin between the maximum projecting height of described a plurality of slit portions with respect to the datum level of described fin.
Preferably, described a plurality of slit portion is 0.7～1.1mm with respect to the maximum projecting height of the datum level of described fin.
Preferably, described the 3rd slit portion is a plurality of, and these a plurality of the 3rd slit portions arrange along the direction interval perpendicular to described stacked direction and described gas flow direction, are provided with projection between adjacent described the 3rd slit portion, form inclined plane part at least on this protruding windward side.
Preferably, the spacing of fin of adjacent described fin on described stacked direction is 1.6～1.9mm, can reduce the number of fins that the heat exchanger of unit length has, and is conducive to reduce the cost of heat exchanger.
Description of drawings
Fig. 1 is the front view of heat exchanger, is the first embodiment;
Fig. 2 is the right side view of heat exchanger shown in Figure 1;
Fig. 3 is the upward view of heat exchanger shown in Figure 1;
Fig. 4 is the oblique view of a slit group on fin;
Fig. 5 is slit group's shown in Figure 4 front side or lateral side view;
Fig. 6 is slit group's shown in Figure 4 top view;
Fig. 7 is the generalized section of each slit portion in Fig. 6, (a) be A-A to generalized section, (b) be B-B to generalized section, (c) be C-C to generalized section, (d) be D-D to generalized section, (e) be E-E to generalized section, (f) be F-F to generalized section, (g) be G-G to generalized section, (h) be H-H to generalized section;
Fig. 8 be in Fig. 6 N-N to, M-M to and K-K to generalized section, (n) be N-N to generalized section, (m) be M-M to generalized section; (k) be K-K to generalized section;
Fig. 9 is air themperature distribution schematic diagram between fin, (a) is the corrugated fin temperature profile, is (b) fin temperature profile shown in Figure 1;
Figure 10 is air layer speed field pattern between fin, (a) is air layer speed field pattern between corrugated fin, is (b) air layer speed field pattern between fin shown in Figure 1;
Figure 11 is the contrast schematic diagram of the coefficient of heat transfer of corrugated fin and fin shown in Figure 1;
Figure 12 is the top view that is provided with slit group's fin, is the second embodiment;
Figure 13 is air themperature distribution schematic diagram between fin, (a) is X-type fin temperature profile, is (b) fin temperature profile shown in Figure 12.
The specific embodiment
With reference to the accompanying drawings the specific embodiment of heat exchanger of the present invention is described in detail.
As Fig. 1～shown in Figure 3, heat exchanger 1 has a plurality of fins 2 and is arranged on heat exchanger tube 3 on this fin 2.It is in a row that the mode that these a plurality of fins 2 can pass through by gas is spaced from each other interval and the stacked arrangement of regulation.As shown in table 1, the spacing of fin Pf between adjacent fins 2 is 1.9mm, and single fin 2 is rectangle usually, and the thickness δ f of this fin 2 is 0.11mm, and its width Pc is 17.32mm.Offer along its length direction a plurality of installing holes 4 that align along the stacked direction of fin 2 on each fin 2, the aperture 2R(R of this installing hole 4 is radius) be 7.53mm, the spacing Pr between adjacent installing hole 4 is 20mm.Single heat exchange tube 3 generally takes the shape of the letter U, the straight line portion of this U-shaped passes along the stacked direction of fin 2 each installing hole 4 that aligns successively, the end of adjacent heat exchange tubes 3 is communicated with by elbow, so repeats, and heat exchanger tube 3 is arranged on fin 2 by roundabout reciprocal mode.Can be found out by data shown in table 1, compare with corrugated fin with the X-type fin, in the essentially identical situations of parameter such as the aperture of the width of fin, thickness, installing hole 4 and pitch of holes, in the present embodiment, the spacing of fin of fin is obviously greater than the spacing of fin of X-type fin and corrugated fin, so, can reduce the quantity of fin of the heat exchanger of unit length, be conducive to reduce the manufacturing cost of heat exchanger.
Table 1
| Fin configuration | Fin of the present invention | The X-type fin | Corrugated fin |
| Fin wide (single) Pc | 17.32 | 13.3 | 18.186 |
| Fin wide (double) 2*Pc | 34.64 | 26.6 | 36.372 |
| The thick δ f of fin | 0.11 | 0.1 | 0.1 |
| |
7.53 | 7.5 | 7.5 |
| Pitch of |
20 | 21 | 21 |
| Spacing of fin Pf | 1.9 | 1.36 | 1.3 |
Forming the slit group on fin 2 between adjacent installing hole 4, as Fig. 4～shown in Figure 6, the slit group comprises a plurality of slit portion 21a～21h along die-cut of the stacked direction of fin 2, and these a plurality of slit portion 21a～21h are set up in parallel along the flow direction (being the left and right directions in Fig. 1) of gas.As shown in Figure 7, slit portion 21a, slit portion 21b, slit portion 21e, slit portion 21f project upwards with respect to the datum level of fin 2, consist of the first slit portion by these a plurality of slit portions; Slit portion 21c, slit portion 21d, slit portion 21g, slit portion 21h give prominence to downwards with respect to the datum level of fin 2, consist of the second slit portion by these a plurality of slit portions.Slit portion 21a～21h is all in wave shape, particularly,
As shown in Fig. 7 (a), the total length of slit portion 21a is 12.59mm, and its integral body is down " W " shape, has two peaks, and the horizontal range between these two peaks is 8.2mm, and the distance of the datum level of this peak and fin 2 is 0.7mm.
As shown in Fig. 7 (b), the total length of slit portion 21b is 10.54mm, and the difference of itself and slit portion 21a is, slit portion 21b integral body is down " V " shape, only has a peak, and the distance of the datum level of this peak and fin 2 is 1.1mm.
As shown in Fig. 7 (c), the total length of slit portion 21c is 9.39mm, and its integral body is " W " shape, has two minimum points, and the horizontal range between these two minimum points is 5.8mm, and the distance of the datum level of this minimum point and fin 2 is 0.7mm.
As shown in Fig. 7 (d), the total length of slit portion 21d is 8.87mm, and the difference of itself and slit portion 21c is, slit portion 21d integral body is V-shaped, and it only has a minimum point, and the distance of the datum level of this minimum point and fin 2 is datum level 1.1mm.
As shown in Fig. 7 (e), the total length of slit portion 21e is 8.87mm, and the difference of itself and slit portion 21a is that the horizontal range between two peaks of slit portion 21e is 5.6mm.
As shown in Fig. 7 (f), slit portion 21f integral body is down " V " shape, and the difference of itself and slit portion 21b is that the total length of slit portion 21b is 9.39mm.
As shown in Fig. 7 (g), the total length of slit portion 21g is 10.54mm, and slit portion 21g integral body is " W " shape, and the difference of itself and slit portion 21c is that the horizontal range between two minimum points of slit portion 21g is 6.6mm.
As shown in Fig. 7 (h), slit portion 21h integral body is V-shaped, and the difference of itself and slit portion 21d is that the total length of slit portion 21h is 12.59mm.
Fig. 8 be in Fig. 6 N-N to, M-M to and K-K to generalized section, (k) be K-K to generalized section, (n) be N-N to generalized section, (m) be M-M to generalized section.As shown in Fig. 8 (m), slit portion 21a and slit portion 21b, slit portion 21e and slit portion 21f are being close to respectively to arrange and are consisting of the first slot set, slit portion 21c and slit portion 21d, slit portion 21g and slit portion 21h are being close to respectively to arrange and are consisting of the second slot set, and this first slot set and the second slot set arrange along the flow direction alternatively up and down of gas.
As shown in Figure 4, in the first slot set, slit portion 21b(or slit portion 21f) peak just be placed in slit portion 21a(or slit portion 21e) two peaks between, and along on the flow direction of gas, be in slit portion 21a(or the slit portion 21e of windward side) maximum height (0.7mm) that projects upwards with respect to the datum level of fin 2 is less than slit portion 21b(or slit portion 21f) with respect to the maximum height that projects upwards (1.1mm) of the datum level of fin 2.In the second slot set, slit portion 21d(or slit portion 21h) minimum point just be placed in slit portion 21c(or slit portion 21g) two minimum points between, and, be in slit portion 21c(or the slit portion 21g of windward side) with respect to the outstanding maximum height (0.7mm) downwards of the datum level of fin 2 less than slit portion 21d(or slit portion 21h) with respect to the outstanding maximum height (1.1mm) downwards of the datum level of fin 2.Adopt aforementioned structure, can form respectively more gas passage in the two sides of fin 2 side, and make the stepped distribution on the flow direction of gas of formed gas passage, can effectively destroy the boundary layer of gas, enhanced heat exchange can be accelerated the gas disturbance, is conducive to improve heat transfer effect.
As shown in Fig. 4～6, the slit group also comprises guide part, and this guide part is positioned at the both sides of a plurality of slit portion 21a～21h, namely corresponding to entrance point and the port of export of gas on a plurality of slit portion 21a～21h.As shown in Figure 6, guide part comprises a plurality of the 3rd slit portion 23, the three slit portions 23 of die-cut of a plurality of stacked directions along fin 2 for project upwards the bridge shape projection of 0.75mm with respect to the datum level of fin 2, and this bridge shape projection parallels with the datum level of fin 2.These a plurality of the 3rd slit portions 23 are set up in parallel with a plurality of slit portion 21a～21h, and the edge is perpendicular to the stacked direction of fin 2 and the direction interval setting of gas flow direction.Be provided with projection 22 between adjacent the 3rd slit portion 23, this projection 22 is chevron (as Fig. 8 (k) with (n)) along the flow direction of gas, and the inclined plane part that has by this chevron can guide gas to flow along the surface of fin 2.
Draw by contrast, the 3rd slit portion 23 projects upwards 0.75mm with respect to the datum level of fin 2, and the first slit portion and the second slit portion be with respect to the datum level of fin 2 outstanding 0.7mm and 1.1mm up and down, the former just between after between the two.Be positioned at gas in 23 air-flow guiding function of the 3rd slit portion of the entrance point of a plurality of slit portion 21a～21h, guiding gas is close to the heat exchange tube wall or fin surface flows, and guarantee that gas successively by by in the formed gas passage of a plurality of slit portion 21a～21h, is conducive to improve heat transfer effect.Be positioned at gas and can carry out rectification to the turbulent flow after a plurality of slit portion 21a～21h that flow through at the 3rd slit portion 23 of the port of export of a plurality of slit portion 21a～21h, play stable wake flow, be conducive to reduce the wake flow whirlpool.
Fig. 9 is air themperature distribution schematic diagram between fin, (a) is the corrugated fin temperature profile, is (b) fin temperature profile shown in Figure 1.As can be seen from Figure 9, corrugated fin has obvious high temperate zone in the wake zone of first row (be positioned at Fig. 9 left side) and second row (be positioned at Fig. 9 right side) heat exchanger tube, and fin of the present invention is very little in the high temperate zone, wake zone of first row heat exchanger tube, high temperate zone in the wake zone of second row heat exchanger tube is less, the regularity of distribution by temperature can judge, in fin of the present invention, air-flow direction can be walked along the heat exchange tube wall " S " type, like this can thermoexcell the heat exchange of wake zone.
Figure 10 is air layer speed field pattern between fin, (a) is air layer speed field pattern between corrugated fin, is (b) air layer speed field pattern between fin shown in Figure 1.As can be seen from Figure 10, in fin of the present invention, the zone that speed air flow is the highest is the part of being close to heat exchanger tube, and still have certain flowing velocity at heat exchanger tube wake zone air, can accelerate so near the Air Flow of heat exchange tube wall, the refrigerant that is conducive in extraneous air and heat exchanger tube carries out heat exchange, thereby improves heat transfer effect.And in corrugated fin, the heat exchanger tube part is not close in the zone that speed air flow is the highest, and very little at the wake zone of heat exchanger tube speed air flow, is unfavorable for like this heat exchange.As seen, the temperature distributing rule of speed distribution regularities shown in Figure 10 and fin shown in Figure 9 is consistent.
Figure 11 is the contrast schematic diagram of the coefficient of heat transfer of corrugated fin and fin shown in Figure 1.Can be drawn by Figure 11, under identical intake velocity, the exchange capability of heat of fin of the present invention is greater than the exchange capability of heat of corrugated fin, it is main because fin of the present invention has Fig. 4～slit group shown in Figure 6, can form more gas passage, can effectively destroy the boundary layer of gas by these a plurality of gas passages, effectively increase air agitation, be conducive to improve heat transfer effect.
In the above-described embodiments, as shown in table 1, the spacing of fin Pf between fin 2 is 1.9mm.Yet not limited thereto, in the present invention, the spacing of fin Pf between fin 2 can be 1.6～1.9mm, and for example, spacing of fin can be 1.6mm or 1.9mm.Come the impact of comparison different fin spacing heat exchanger performance below by data shown in table 2.As can be seen from Table 2, under identical intake velocity, even spacing of fin of the present invention greater than the spacing of fin of corrugated fin, also can reach than the better heat transfer effect of corrugated fin.The present invention has increased the gap between adjacent fins by suitably increasing the spacing of fin of fin 2, can reduce the flow resistance of air between fin, it is flowed more smooth and easy, thereby accelerates the renewal speed of gas between fin, is conducive to improve heat transfer effect.Simultaneously, the spacing of fin of the present invention by suitable increase fin 2 can reduce fin 2 quantity that the heat exchanger of unit length has, and is conducive to reduce the manufacturing cost of heat exchanger.In addition, spacing of fin also can be the arbitrary value between 1.6～1.9mm.
Table 2
Figure 12 is the top view that is provided with slit group's fin, is the second embodiment, and the difference of itself and the first embodiment is, a plurality of slit portions are side-prominent towards the one side of fin 2, and these a plurality of slit portions are arranged and are X-shaped.Figure 13 is air themperature distribution schematic diagram between fin, (a) is X-type fin temperature profile, is (b) fin temperature profile shown in Figure 12.As shown in figure 13, compare with the X-type fin, in the present embodiment fin, the disturbance that air themperature distributes obviously increases, and can destroy the boundary layer of air, thereby strengthens exchange capability of heat.Can be drawn by data shown in table 3, when spacing of fin kept identical, the exchange capability of heat of this enforcement fin was greater than the exchange capability of heat of X-type fin.
Table 3
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
For example, as shown in Fig. 8 (m), consist of the first slot set by being close to two the first slit portions that arrange, consist of the second slot set by being close to two the second slit portions that arrange, and this first slot set and the second slot set are arranged alternately.Yet not limited thereto, the first slit portion and the second slit portion also can be arranged alternately successively along the flow direction of gas.
Again for example, as shown in Figure 8, projection 22 flow directions along gas are chevron, yet not limited thereto, also can only form in order to guide the inclined plane part of gas flow on the windward side of projection 22.
Again for example, as shown in Figure 8, the 3rd slit portion 23 and projection 22 all project upwards with respect to the datum level of fin 2, yet not limited thereto, the 3rd slit portion 23 and projection 22 also can be outstanding downwards with respect to the datum level of fin 2, perhaps, a part the 3rd slit portion 23 projects upwards, and another part the 3rd slit portion 23 is outstanding downwards.
Claims (10)
1. a heat exchanger, have a plurality of fins (2) that are spaced from each other predetermined distance and laminated configuration and the heat exchanger tube (3) that connects described fin (2) along the stacked direction of described a plurality of fins (2), it is characterized in that,
Described fin (2) has along a plurality of slit portions of die-cut of described stacked direction, and these a plurality of slit portions are arranged side by side along the flow direction of gas,
The guide part that upward entrance point on described a plurality of slit portions and/or the port of export are provided with to guide gas flow corresponding to gas at described fin (2).
2. heat exchanger according to claim 1, it is characterized in that, described a plurality of slit portion comprises the first slit portion that the datum level with respect to described fin (2) projects upwards and with respect to the datum level of described fin (2) outstanding the second slit portion downwards, described the first slit portion and the second slit portion are arranged alternately along the flow direction of gas.
3. heat exchanger according to claim 2, it is characterized in that, at least two described the first slit portions by adjacent setting consist of the first slot set, at least two described the second slit portions by adjacent setting consist of the second slot set, and described the first slot set and the second slot set are arranged alternately along the flow direction of gas.
4. heat exchanger according to claim 3, is characterized in that, described the first slit portion and the second slit portion are in wave shape, and in described the first slot set and the second slot set, the first slit portion of adjacent setting and the crest of the second slit portion interlace out.
5. heat exchanger according to claim 4, is characterized in that, in described the first slot set and the second slot set, the crest of described the first slit portion and the second slit portion increases gradually along the flow direction of described gas respectively.
6. heat exchanger according to claim 1, is characterized in that, described a plurality of slit portions are side-prominent and arrange along the flow direction of described gas and be X-shaped towards the one side of described fin (2).
7. the described heat exchanger of any one according to claim 1～6, is characterized in that, described guide part is the 3rd slit portion (23) along die-cut of described stacked direction, and the 3rd slit portion (23) is arranged side by side with described a plurality of slit portions,
Described the 3rd slit portion (23) with respect to the projecting height of the datum level of described fin (2) between the maximum projecting height of described a plurality of slit portions with respect to the datum level of described fin (2).
8. heat exchanger according to claim 7, is characterized in that, described a plurality of slit portions are 0.7～1.1mm with respect to the maximum projecting height of the datum level of described fin (2).
9. heat exchanger according to claim 7, it is characterized in that, described the 3rd slit portion (23) is a plurality of, and these a plurality of the 3rd slit portions (23) are along the direction interval setting perpendicular to described stacked direction and described gas flow direction, be provided with projection (22) between adjacent described the 3rd slit portion (23), form inclined plane part at least on the windward side of this projection (22).
10. heat exchanger according to claim 1, is characterized in that, the spacing of fin of adjacent described fin (2) on described stacked direction is 1.6～1.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076919.4A CN103162563B (en) | 2013-03-11 | 2013-03-11 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076919.4A CN103162563B (en) | 2013-03-11 | 2013-03-11 | Heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN103162563A true CN103162563A (en) | 2013-06-19 |
| CN103162563B CN103162563B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310076919.4A Active CN103162563B (en) | 2013-03-11 | 2013-03-11 | Heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017161186A (en) * | 2016-03-11 | 2017-09-14 | パナソニックＩｐマネジメント株式会社 | Fin tube heat exchanger |
| CN109470074A (en) * | 2017-09-07 | 2019-03-15 | 美的集团股份有限公司 | Fins set and fin-tube heat exchanger |
| CN111043892A (en) * | 2018-10-15 | 2020-04-21 | 林内株式会社 | Heat transfer fin |
| CN111322683A (en) * | 2020-03-06 | 2020-06-23 | 青岛海信日立空调系统有限公司 | Air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616588A (en) * | 1984-06-20 | 1986-01-13 | Hitachi Ltd | Finned tube type heat exchanger |
| CN1158980A (en) * | 1995-01-23 | 1997-09-10 | Lg电子株式会社 | Fin tube heat exchanger |
| CN1197922A (en) * | 1997-04-28 | 1998-11-04 | 株式会社日立制作所 | Heat excharger |
| JPH11108575A (en) * | 1997-10-03 | 1999-04-23 | Hitachi Ltd | Heat exchanger having winglet |
| CN1654914A (en) * | 1999-12-15 | 2005-08-17 | Lg电子株式会社 | Fin and tube type heat-exchanger |
-
2013
- 2013-03-11 CN CN201310076919.4A patent/CN103162563B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616588A (en) * | 1984-06-20 | 1986-01-13 | Hitachi Ltd | Finned tube type heat exchanger |
| CN1158980A (en) * | 1995-01-23 | 1997-09-10 | Lg电子株式会社 | Fin tube heat exchanger |
| CN1197922A (en) * | 1997-04-28 | 1998-11-04 | 株式会社日立制作所 | Heat excharger |
| JPH11108575A (en) * | 1997-10-03 | 1999-04-23 | Hitachi Ltd | Heat exchanger having winglet |
| CN1654914A (en) * | 1999-12-15 | 2005-08-17 | Lg电子株式会社 | Fin and tube type heat-exchanger |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017161186A (en) * | 2016-03-11 | 2017-09-14 | パナソニックＩｐマネジメント株式会社 | Fin tube heat exchanger |
| CN109470074A (en) * | 2017-09-07 | 2019-03-15 | 美的集团股份有限公司 | Fins set and fin-tube heat exchanger |
| CN109470074B (en) * | 2017-09-07 | 2020-06-26 | 美的集团股份有限公司 | Fin group and fin tube type heat exchanger |
| CN111043892A (en) * | 2018-10-15 | 2020-04-21 | 林内株式会社 | Heat transfer fin |
| CN111043892B (en) * | 2018-10-15 | 2023-05-02 | 林内株式会社 | Heat transfer fin |
| CN111322683A (en) * | 2020-03-06 | 2020-06-23 | 青岛海信日立空调系统有限公司 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103162563B (en) | 2015-09-02 |
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