CN101995147B - Clothes dryer - Google Patents
Clothes dryer Download PDFInfo
- Publication number
- CN101995147B CN101995147B CN201010250594.3A CN201010250594A CN101995147B CN 101995147 B CN101995147 B CN 101995147B CN 201010250594 A CN201010250594 A CN 201010250594A CN 101995147 B CN101995147 B CN 101995147B
- Authority
- CN
- China
- Prior art keywords
- heating unit
- air
- fin
- preheat
- unit
- 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.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
- D06F58/04—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A clothes dryer having a preheating unit preheating drawn air is provided. The clothes dryer includes a main body, a drying tub rotatably mounted to receive an object to be dried, and a hot air duct supplying hot air into the drying tub. The hot air duct includes a heating unit heating drawn air, and a hot air supply unit connecting the heating unit with the drying tub, thereby forming a path for heated air. The heating unit includes a first heating unit having a heater part generating heat, and a second heating unit surrounding an entrance and outer walls of the first heating unit, thereby forming a path for the air flowing to the first heating unit. The second heating unit includes one or more preheating fins formed on the first heating unit to contact the air flowing in the second heating unit.
Description
Technical field
Embodiments of the invention relate to and a kind ofly have the dryer preheating function.
Background technology
Dryer a kind ofly hot-air is sent into dry bucket and therefore dry the equipment being accommodated in article to be dried in dry bucket.
Dryer is mainly divided into: exhaust type drying machine, the damp-heat air by dry bucket is discharged into the outside of dryer; Condensed type drying machine, to damp-heat air dehumidifying and by the air re-circulation after dehumidifying to dry bucket.
In general, dryer has heater in for the warm-air pipe of gas channel, to produce hot-air by the air in heat hot airduct.
According to the dryer with this structure, when air contact or the heater through release heat, produce the hot-air flowing through warm-air pipe.Hot-air is supplied in dry bucket to dry article to be dried.
But just heated when air flows near heater because only have, most of heat of therefore heater release is wasted.In addition, in order to produce the hot-air with preferred temperature, heater needs to maintain quite high temperature.Therefore, energy efficiency is low.
Summary of the invention
Therefore, one aspect of the present invention provides a kind of and has preheating unit to improve the dryer of energy efficiency.
Other aspect parts will be set forth in part in the following description, and part will be clear from the description or understand by practice of the present invention.
Aforementioned and/or other aspects realize by providing a kind of dryer, and this dryer comprises: fuselage; Dry bucket, rotatably installs to receive article to be dried; Warm-air pipe, is fed to dry bucket by hot-air.Wherein, warm-air pipe comprises: heating unit, heats the air be fed to wherein; Hot air supplying unit, is connected heating unit with dry bucket, thus forms the passage for the air heated.Heating unit comprises: the first heating unit, has the heater block be arranged on wherein, for generation of heat; Second heating unit, around entrance and the outer wall of the first heating unit, thus forms passage, flows to the first heating unit to make air.
Second heating unit can comprise and one or morely preheats fin, and this one or more fin that preheats is formed at least one outer wall of the first heating unit, to contact the air flowed in the second heating unit.This one or more fin that preheats is arranged in parallel to each other along the length direction of the first heating unit.This one or more fin that preheats can tilt relative to the length direction of the first heating unit.This one or more fin that preheats can tilt about 3 °-7 ° relative to the length direction of the first heating unit.
Second heating unit can comprise main body and flow losses reduction part, to reduce the flow losses in air intake process, flow losses reduction part makes its diameter being greater than the main body of the second heating unit be formed by the diameter of the air intake part increasing by the second heating unit.
Heating unit can comprise plating steel disc.
Preheat fin and can comprise at least one of electroplating in steel disc, aluminium and copper.
This one or more fin that preheats can with constant pitch arrangement.
Heating unit can comprise: heater plates, crosses over the inside of the first heating unit and is formed; Nichrome silk, the release heat by being powered; Ceramic component, is fixed to heater plates by nichrome silk.
Aforementioned and/or other aspects are by providing a kind of dryer to realize, and this dryer comprises: fuselage; Dry bucket, rotatably installs to receive article to be dried; Warm-air pipe, is fed to dry bucket by hot-air.Wherein, warm-air pipe comprises: heating unit, has heater block to heat the air that is inhaled into wherein to provide hot-air; Hot air supplying unit, is directed to dry bucket by hot-air.Heating unit comprises: main heating unit, utilizes the heat of heater block to heat the air of suction; Preheating unit, form passage and utilize the heat of main heating unit to add hot-air, passage is used for making air flow to main heating unit.
Preheating unit can comprise and preheats fin, preheats the outside that fin is formed in main heating unit, is effectively transferred to preheating unit to make the heat of main heating unit.
Aforementioned and/or other aspects realize by providing a kind of dryer with the warm-air pipe of supply hot-air, wherein, warm-air pipe can comprise the heating unit that heating is fed to air wherein, and heating unit can comprise: the first heating unit, the air that direct heating is flowed wherein; Second heating unit, arranges near the first heating unit, thus forms air duct, and this air duct guides air in the opposite direction along the side with the air flowed in the first heating unit.Second heating unit utilizes the heat of the first heating unit indirectly to heat the air flow in the first heating unit.
Second heating unit can comprise and one or morely preheats fin, describedly one or morely to preheat on outer wall that fin is formed in the first heating unit to contact the air flowed in the second heating unit.
Aforementioned and/or other aspects are also by providing a kind of dryer to realize, and this dryer comprises: fuselage; Heating unit, the air that heating sucks; Hot air supplying unit, is connected to the end of heating unit, thus forms the passage of hot-air; Dry bucket, is connected to hot air supplying unit and is configured to receive article to be dried; Ventilation unit, makes air circulate; Blast pipe, is directed to external fuselage by the air of discharging from dry bucket.Wherein, heating unit comprises: the first heating unit, is connected to hot air supplying unit, and is equipped with the heater block producing heat in the first heating unit; Second heating unit, forms air duct and air is guided to the first heating unit, in this air duct, and the wall contacts of air-flow and the first heating unit.
Second heating unit can comprise be formed in the first heating unit outer wall on preheat fin, to increase the heating to the air flowed in the second heating unit.
As mentioned above, by using the preheating unit preheating the air of suction, improve the efficiency of hot-air generation according to the oven dry function of the embodiment of the present invention.
Preheating fin by using, also can improve hot-air generation efficiency.In addition, because the air circulation structure of dryer heating unit improves, so can the energy be saved.
Accompanying drawing explanation
By the description carried out embodiment below in conjunction with accompanying drawing, above-mentioned and/or other aspects of the present invention will become clear and more should be readily appreciated that, wherein:
Fig. 1 is the perspective view of the dryer according to an embodiment;
Fig. 2 is the longitudinal section of the dryer of Fig. 1;
Fig. 3 is perspective view, shows in detail the heating unit of the dryer of Fig. 1;
Fig. 4 is the sectional view intercepted along the I-I ' line in Fig. 3;
Fig. 5 is the sectional view intercepted along the II-II ' line in Fig. 3;
Fig. 6 is the sectional view intercepted along the III-III ' line in Fig. 3;
Fig. 7 is conceptual view, shows the operating process of the dryer according to embodiment;
Fig. 8 is longitudinal section, shows the heating unit of the dryer according to another embodiment;
Fig. 9 is top sectional view, shows the heating unit of the dryer according to another embodiment.
Detailed description of the invention
To describe embodiment in detail now, its example is shown in the drawings, and wherein, identical label indicates identical element all the time.
Fig. 1 is the perspective view of the dryer according to an embodiment.Fig. 2 is the longitudinal section of the dryer shown in Fig. 1.
With reference to figure 1 and Fig. 2, comprise fuselage 10 according to the dryer 1 of an embodiment, the dry bucket 20 be rotatably installed in fuselage 10, the drive unit 30 that dry bucket 20 is rotated and the warm-air pipe 100 be fed to by hot-air in dry bucket 20.
Fuselage 10 comprises casing 11, covers the top cover 12 at casing 11 top, the front panel 13 being arranged in the front portion of casing 11 and control panel 14, and control panel 14 is equipped with various action button for controlling dryer 1 and display screen.
Dry bucket 20 has the cylindrical shape in front side and rear openings, and comprises multiple lifters 21, and lifters 21 to be given prominence to the form of the ridge with triangular cross-sectional shape from the inner surface of drying 20 and is suitable for being mentioned by article to be dried or falling.In addition, front end panel 22 and rear bearing sheet 24 are respectively fixed to interior front and the inside back of fuselage 10, also support open front side and after-opening side rotatably with the open front side and after-opening side that cover dry bucket 20.
Enter opening 19a and penetrate the front side of fuselage 10 and front end panel 22 is formed.Article to be dried by enter opening 19a be placed into dry bucket 20 neutralize from dry bucket 20 take out.Open and enter opening 19a and close the front portion that the door 19 entering opening 19a is connected to fuselage 10.
Drive unit 30 comprises the drive motors 31 being arranged on bottom in casing 11, and by the power transmission of drive motors 31 to the pulley 32 of dry bucket 20 and rotating band 33.On the outer surface that rotating band 33 is wrapped in dry bucket 20 and pulley 32 (being connected to the axle of drive motors 31).
Warm-air pipe 100 comprises heating unit 200 and hot air supplying unit 40, and heating unit 200 heats the air being fed to it, and heating unit 200 is connected to dry bucket 20 by hot air supplying unit 40.
The below that heating unit 200 is arranged in dry bucket 20 enters to guide extraneous air and adds hot-air.For this reason, heating unit 200 comprises the heater block 280 of release heat in heating unit 200.Heating unit 200 will more specifically be described after a while.
Heating unit 200 is connected with dry bucket suction part 24a by hot air supplying unit 40, thus forms air duct, and dry bucket suction part 24a is formed in the top of rear bearing sheet 24.In addition, hot air supplying unit 40 guides the air of heating towards dry bucket 20.
Blast pipe 50 is connected to the front lower portion of dry bucket 20, to guide the discharge of the air be introduced in dry bucket 20.Blast pipe 50 is divided into: front exhaust pipe 51, is connected by the exhaust outlet 22b being arranged in the bottom of front end panel 22 with the entrance of the ventilation unit 60 be arranged in below dry bucket 20; Final vacuum pipe 53, is formed in the bottom of casing 11, is communicated with glibly to make the outlet of ventilation unit 60 with the outer rear portion of casing 11.
Filter element 55 is installed to front exhaust pipe 51 with filtering foreign matter, the dust such as comprised from the hot-air that dry bucket 20 is discharged and velveteen.
Ventilation unit 60 makes air circulate, and comprises draft fan 61 and ventilated box 63.Draft fan 61 is arranged on the front lower portion of dry bucket 20.Ventilated box 63 is formed around draft fan 61 and is connected to front exhaust pipe 51 and final vacuum pipe 53.
Fig. 3 is the detailed perspective view of the heating unit of dryer.Fig. 4 is the sectional view intercepted along the I-I ' line in Fig. 3, and Fig. 5 is the sectional view intercepted along the II-II ' line in Fig. 3, and Fig. 6 is the sectional view intercepted along the III-III ' line in Fig. 3.
As shown in Fig. 3 to Fig. 6, heating unit 200 comprises: the first heating unit 210, in the first heating unit 210, be furnished with heater block 280; Second heating unit 230, has main body, and the second heating unit 230 is around the entrance 212a of the first heating unit 210 and upper outer wall 211a and lower outer wall 211b.
First heating unit 210 substantially has rectangular cross sectional shape and is constructed to air is flowed wherein.
First heating unit 210 comprises heater block 280, heater block 280 in the first heating unit 210 for release heat.Second heating unit 230 comprises and one or morely preheats fin 250, and this one or more fin 250 that preheats is formed on outer wall 211a and lower outer wall 211b, with by contacting transferring heat with the air flowed in the second heating unit 230.
Heater block 280 comprises: heater plates 282, and the inside crossing over the first heating unit 210 is formed; Nichrome silk 284, by being supplied to electrical power and release heat; Ceramic component 286, is fixed to heater plates 282 by nichrome silk 284.
Nichrome silk 284 by the ceramic component 286 that can bear high temperature for medium is fixed to heater plates 282.In this case, heater plates 282 can be prevented by the high temperature failure of nichrome silk 284.
According to exemplary embodiment, heater plates 282 and the first heating unit 210 are made up of same material.
Preheat the air that the heat of the first heating unit 210 is delivered to flowing in the second heating unit 230 by fin 250.For this purpose, can be formed on the upper outer wall 211a of the first heating unit 210 and lower outer wall 211b and multiplely preheat fin 250.
Preheating fin 250 becomes the length direction along the first heating unit 210 to be parallel to each other with constant pitch arrangement.Such structure is intended to improve the heat transference efficiency that enters in the second heating unit 230 and reduces air drag.In addition, can be formed near dry bucket 20 arrange preheat fin 250a and due to the position relationship with dry bucket 20, preheating fin 250a, to preheat fin 250 than other little.
Second heating unit 230 has the outward appearance larger than the first heating unit 210, so that around the entrance 212a of the first heating unit 210 and outer wall 211a and 211b.Therefore, the space S as the air duct between the first heating unit 210 and the second heating unit 230 is formed.
That is, the second heating unit 230 is arranged near the first heating unit 210, therefore forms air duct, and air flows through the opposite direction flowing in the direction of the first heating unit 210 in this air duct towards air.
According to said structure, the air sucked from the outside of fuselage 10 is conducted through the entrance 231a of the second heating unit 230, by the internal space S of the second heating unit 230, guide to the entrance 212a of the first heating unit 210, then by the first heating unit 210, thus hot-air is heated to form.
First heating unit 210 with heater block 280 of heating unit 200 is as the main heating unit directly adding hot-air.On the other hand, there is the second heating unit 230 of preheating fin 250 as heating also not by the preheating unit of the air of main heating unit heats.
Heating unit 200 comprises plating steel disc, this is because electroplate not expensive, the easy processing of steel disc and durable.
Preheating unit 250 can comprise at least one in plating steel disc, aluminium and copper.
Although the reason plating steel disc low due to cost is typically used as the material preheating fin 250, compared with plating steel disc, aluminium has higher pyroconductivity, but aluminium is more expensive.Compared with aluminium, copper has higher pyroconductivity, and copper is more expensive.
Hereinafter, the operation according to the dryer 1 of the embodiment of Fig. 1 will be described.
Fig. 7 is conceptual view, shows the operating process of dryer 1.
With reference to figure 7, when user article C to be dried put into dry bucket 20 and the button of operation control panel 14 time, the draft fan 61 of ventilation unit 60 rotates and heater block 280 release heat.
Along with the rotation of draft fan 61, the pressure in dry bucket 20 reduces.Therefore, the air of fuselage 10 outside is inhaled in the second heating unit 230 of heating unit 200 by the hole 11a be formed on casing 11 rear surface.
Air is by the entrance 231a of the second heating unit 230 and flow into the inner space of the second heating unit 230.At this, due to the first heating unit 210 heat by the heat of heater block 280, so the air of heat heating in the second heating unit 230 of outer wall 211a and 211b of the first heating unit 210.
In addition, the heat of the first heating unit 210 is also passed to and preheats fin 250, thus the air in heating the second heating unit 230.Preheat fin 250 and can have plate-like form with release heat effectively, and the midway that can be arranged in air-flow is effectively to add hot-air.
That is, the second heating unit 230 and preheat fin 250 and indirectly add hot-air.
Pre-warmed air is by the entrance 212a of the first heating unit 210 and flow in the first heating unit 210.Now, heater block 280 directly heats the air of flowing in the first heating unit 210.
Because air is preheated fully, thus the time that heater block 280 directly carries out heating will greatly reduce.Therefore, the hot-air of the temperature with expectation can be produced at short notice.
In addition, the consumption being supplied to the power of heater block 280 reduces, and therefore saves the energy.
The hot-air produced by heating unit 200 is through hot air supplying unit 40 and be supplied to dry bucket 20.When drive motors 31 makes dry bucket 20 rotate, the article C to be dried in dry bucket 20 is elevated repeatedly, is therefore dried by the hot-air of contact supply.
Humid air in dry bucket 20 is discharged into outside fuselage 10 by front exhaust pipe 51 and final vacuum pipe 53.Because continued operation ventilation unit 60 in this operating process, so extraneous air is again inhaled into and repeats said process, therefore continue drying operation.
Hereinafter, another embodiment will be described with reference to the drawings.The 26S Proteasome Structure and Function identical with previous embodiment will no longer describe.
Fig. 8 is longitudinal section, shows the heating unit of the dryer according to another embodiment.
As shown in Figure 8, heating unit 300 has identical structure substantially with the heating unit 200 of previous embodiment, but heating unit 300 also comprises windage loss reduces unit 335, windage loss reduces unit 335 and is suitable for the loss reducing the air be inhaled in the second heating unit 330.
Windage loss reduces unit 335 and is constructed out, to reduce flow losses in air intake process by the air intake part of expansion second heating unit 330.Specifically, along with the expansion of air intake part, between the air intake part and the first heating unit 310 of the second heating unit 330, form predetermined spacing, so that air can be drawn in the second heating unit 330 naturally, and can not flow losses be caused.
Other features of the present embodiment and previous embodiments.
Hereafter by describing the heating unit according to another embodiment, omit the description of the 26S Proteasome Structure and Function identical with previous embodiment.
Fig. 9 is top sectional view, shows the heating unit according to another embodiment.
With reference to figure 9, except preheating the structure of fin 450, heating unit 400 has identical structure substantially with the heating unit 200 of previous embodiment.
Preheat fin 450 to tilt predetermined angle x ° relative to the length direction of the first heating unit 410.
According to this structure, in the second heating unit 430, the gas channel of the air of flowing is extended, because this increasing the time of contact preheated between fin 450 and the first heating unit 410.As a result, improve preheat efficiency.
Example shows, and preheating fin 450 relative to the angle of inclination x ° of the length direction of the first heating unit 410 is 3 °-7 °, this is because when angle x ° excessive, gas-flow resistance increases, and therefore air flow efficiency reduces.
Although show and describe some embodiments of the present invention, but those skilled in the art will be appreciated that, when not departing from by the principle of the embodiment of claim and its scope of equivalents thereof and spirit, can change these embodiments.
Claims (9)
1. a dryer, comprising:
Fuselage;
Dry bucket, rotatably installs to receive article to be dried;
Warm-air pipe, is fed to dry bucket by hot-air;
Wherein, warm-air pipe comprises heating unit and hot air supplying unit, the air that described heating unit heats sucks, and heating unit is connected with dry bucket by described hot air supplying unit, thus forms the passage for the air heated,
Described heating unit comprises: the first heating unit, has heater block, and described heater block is arranged in the first heating unit to produce heat; Second heating unit, around entrance and the outer wall of the first heating unit, thus forms passage, to make air flow to the first heating unit,
Wherein, the second heating unit comprises and preheats fin, preheats fin and is formed at least one outer wall of the first heating unit, to contact the air flowed in the second heating unit.
2. dryer according to claim 1, wherein, described in preheat fin and comprise and multiplely preheat fin, wherein, these preheat fin and arrange in parallel to each other along the length direction of the first heating unit.
3. dryer according to claim 1, wherein, described in preheat fin and comprise and multiplely preheat fin, wherein, these preheat fin and tilt relative to the length direction of the first heating unit.
4. dryer according to claim 3, wherein, described multiple one or more fins that preheat preheated in fin tilt 3 °-7 ° relative to the length direction of the first heating unit.
5. dryer according to claim 1, wherein, the second heating unit comprises main body and flow losses reduction part, to reduce the flow losses in air intake process,
Flow losses reduction part comprises air intake part, and described air intake part has the diameter larger than the diameter of the fuselage of the second heating unit.
6. dryer according to claim 1, wherein, described heating unit also comprises plating steel disc.
7. dryer according to claim 1, wherein, described in preheat fin comprise plating steel disc, aluminium and copper at least one.
8. dryer according to claim 1, wherein, described in preheat fin with constant pitch arrangement.
9. dryer according to claim 1, wherein, described heating unit comprises: heater plates, and the inside crossing over the first heating unit is formed; Nichrome silk, the release heat by being powered; Ceramic component, is fixed to heater plates by nichrome silk.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090078037A KR101301489B1 (en) | 2009-08-24 | 2009-08-24 | Clothing Dryer |
| KR10-2009-0078037 | 2009-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101995147A CN101995147A (en) | 2011-03-30 |
| CN101995147B true CN101995147B (en) | 2015-01-21 |
Family
ID=43604121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010250594.3A Expired - Fee Related CN101995147B (en) | 2009-08-24 | 2010-08-10 | Clothes dryer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20110041352A1 (en) |
| KR (1) | KR101301489B1 (en) |
| CN (1) | CN101995147B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101337730B1 (en) * | 2011-06-07 | 2013-12-06 | 위니아만도 주식회사 | Method of controlling for Dryer |
| FR2986539B1 (en) * | 2012-02-03 | 2014-03-21 | Francois | DEVICE FOR DRYING TEXTILES USED IN BAKERY |
| WO2015009034A1 (en) | 2013-07-16 | 2015-01-22 | Lg Electronics Inc. | Clothes dryer |
| KR102077040B1 (en) * | 2013-07-16 | 2020-02-13 | 엘지전자 주식회사 | Clothes dryer |
| DE102022113099A1 (en) * | 2022-05-24 | 2023-11-30 | Dürr Systems Ag | Fresh air heat exchanger and method for providing heated fresh air with the electrically heated fresh air heat exchanger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200561A (en) * | 1962-02-02 | 1965-08-17 | Weldotron Corp | Apparatus for shrinking wrappers of packages |
| CN1393594A (en) * | 2001-06-29 | 2003-01-29 | Lg电子株式会社 | Clothes drier |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2158602A (en) * | 1937-04-13 | 1939-05-16 | Edwin L Wiegand | Electrical heating apparatus |
| US2158601A (en) * | 1937-04-13 | 1939-05-16 | Edwin L Wiegand | Electrical heating apparatus and method of making the same |
| US2527013A (en) * | 1947-10-17 | 1950-10-24 | Bayard L Kjelgaard | Infrared heater |
| US4044099A (en) * | 1973-09-17 | 1977-08-23 | Griffin Research & Development, Inc. | Polluted air effluent incinerating method |
| KR200212658Y1 (en) * | 1998-09-23 | 2001-02-15 | 신상선 | Hot Air Dryer |
| KR100457582B1 (en) | 2002-11-28 | 2004-11-18 | 엘지전자 주식회사 | A heater assembly of dryer |
| KR100597742B1 (en) * | 2004-07-20 | 2006-07-07 | 삼성전자주식회사 | Washing machine |
| KR100585323B1 (en) | 2004-11-24 | 2006-06-01 | 삼성전자주식회사 | Clothes Drying Apparatus |
| CN201062872Y (en) * | 2007-04-09 | 2008-05-21 | 张连森 | Secondary air pre-heating energy-saving air knife heater |
-
2009
- 2009-08-24 KR KR1020090078037A patent/KR101301489B1/en not_active IP Right Cessation
-
2010
- 2010-07-16 US US12/805,196 patent/US20110041352A1/en not_active Abandoned
- 2010-08-10 CN CN201010250594.3A patent/CN101995147B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3200561A (en) * | 1962-02-02 | 1965-08-17 | Weldotron Corp | Apparatus for shrinking wrappers of packages |
| CN1393594A (en) * | 2001-06-29 | 2003-01-29 | Lg电子株式会社 | Clothes drier |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110041352A1 (en) | 2011-02-24 |
| KR20110020430A (en) | 2011-03-03 |
| CN101995147A (en) | 2011-03-30 |
| KR101301489B1 (en) | 2013-08-29 |
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Granted publication date: 20150121 Termination date: 20160810 |