EP1856319B1 - Apparatus for supplying hot air in drum type washer with dry function - Google Patents
Apparatus for supplying hot air in drum type washer with dry function Download PDFInfo
- Publication number
- EP1856319B1 EP1856319B1 EP05856292A EP05856292A EP1856319B1 EP 1856319 B1 EP1856319 B1 EP 1856319B1 EP 05856292 A EP05856292 A EP 05856292A EP 05856292 A EP05856292 A EP 05856292A EP 1856319 B1 EP1856319 B1 EP 1856319B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- blower
- blower cover
- duct housing
- duct
- 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.)
- Not-in-force
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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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
- The present invention relates to a drum type washer with dry function, and more particularly, to an apparatus for supplying hot air in a drum type washer with dry function, by which a laundry within a drum can be dried in a manner of forcibly blowing the generated hot air to the drum.
- Generally, a drum type washer with dry function is an apparatus for removing dirt or filth from a laundry inputted to a drum using a proper detergent and mechanical force through washing, rinsing, dewatering, and drying cycles.
-
FIG. 1 is a cross-sectional diagram of a drum type washer with dry function according to a related art, andFIG. 2 is a perspective diagram of a hot air supplying device consisting of a drying duct and a blower according to a related art. - Referring to
FIG. 1 andFIG. 2 , a tub 4 is installed within a cabinet 2 to be horizontally supported by a spring and damper (not shown in the drawing). Acylindrical drum 5 is rotatably installed within the tub 4 to wash a laundry inputted thereto. Amotor 7 is installed under thetub 7. A drive pulley (not shown in the drawing) connected to themotor 7 via abelt 6 is provided in rear of the tub 4 to rotate the drum forward or reversely. Awater supply hose 9 connected to a water supply source is provided to one side of an upper part of the cabinet 2 to supply a detergent to the tub 4 via adetergent box 8. Adrain hose 11 connected to adrain pump 10 is provided to one side of a lower part of the cabinet 2 to drain water within the tub 4 outside. And, a door (not shown in the drawing) opening/closing a front portion of thedrum 5 is revolvably provided to a front portion of the cabinet 2. - A
drying duct 30, in which aheater 36 and ablower 34 are built to blow out hot air into the tub, is provide over the tub 4. Acondensing duct 40 is provided to one side of the tub 4. One end of thecondensing duct 40 communicates with a lower lateral part of the tub 4 and the other end of thecondensing duct 40 communicates with thedrying duct 30. Hence, thecondensing duct 40 forms a circulation path together with thedrying duct 30 and the tub 4. A water supply nozzle is provided to one side of thecondensing duct 40 to remove humidity from air introduced from the tub 4 in a manner of flowing cooling water. - The
drying duct 30, as shown inFIG. 2 , consists of a metallicupper housing 31, a metalliclower housing 32, and ablower cover 33 connected to one side of theupper housing 31. Moreover, amotor 35 and theblower 34 are assembled to each other centering on the same axis by leaving theblower cover 33 in-between. - The
heater 36 is attached within thedrying duct 30 to heat air flowing within the duct. - A
motor guide 37 is provided to theblower cover 33 to have a recess for receiving themotor 35 therein. A power cable guide slot is provided to themotor guide 37 to guide apower cable 39 of themotor 35. Aflange 33a is provided to an outer circumference of theblower cover 33 to be loaded on an outer circumference of thelower housing 32, and a plurality oflocking holes 33b are provided to both sides of theflange 33a for screw-coupling with thelower housing 32. - The above-configured drying duct and
blower - However, the related art drum type washer with dry function has the following problems or disadvantages.
- First of all, a locking place of the lower housing configuring the drying duct is varied according to a washing capacity of the washer, and a size of the blower drive motor and an installation direction of the
power cable 39 are changed as well. Hence, theblower cover 33 needs to be modified to correspond to the washing capacity of the washer. If the blower cover is applied to a specific washing capacity only, the product cost is raised as well as maintenance and management get difficult. - Secondly, the upper and
lower housings drying duct 30 of the related art drum type washer with dry function are manufactured by iron casting using steel. And, theblower 34 and theblower cover 33 are made of steel or stainless steel by casting or metallic processing. Hence, the corresponding product costs are high to raise the product cost of the washer/dryer. - Specifically, in case of the
blower 34, arim 34a, abase 34b, and ablade 34c need to be separately formed to be assembled. Hence, the corresponding manufacturing process is considerably complicated to further raise the product cost. - Accordingly, the present invention is directed to a drum type washer with dry function that substantially obviates one or more problems due to limitations and disadvantages of the related art.
- An object of the present invention is to provide a drum type washer with dry function, by which a manufacturing process of a drying duct is simplified and by which a product cost is lowered.
- Another object of the present invention is to provide a drum type washer with dry function, by which compatibility of a blower cover is enhanced to cope with variable sizes of a drying duct and motor according to washing capacity.
- Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
- To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly describe herein, an apparatus for supplying hot air in a drum type washer according to the present invention includes the features of
claim 1. - In another aspect of the present invention, an apparatus for supplying hot air in a drum type washer with dry function includes a first duct housing provided to a tub included in the drum type washer, a second duct housing provided to an upper side of the first duct housing, a blower cover provided to the upper side of the first duct housing adjacent to the second duct housing, the blower cover being formed of a synthetic resin based material, the blower cover having a recess, a heater provided between the first and second duct housings, a motor coupled with the recess of the blower cover, a blower under the blower cover, the blower being rotatably connected to the motor, and a motor guide protruding upward along an outer circumference of the recess of the blower cover, the motor guide including a plurality of bosses having screws locked therein for coupling with the motor, respectively and at least one escape recess for receiving a projected portion of a locking screw separately locked in the motor.
- It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
-
FIG. 1 is a cross-sectional diagram of a drum type washer with dry function according to a related art; -
FIG. 2 is a perspective diagram of a hot air supplying device consisting of a drying duct and a blower according to a related art; -
FIG. 3 is a projected perspective diagram of a hot air supplying apparatus according to one embodiment which does not form part of the invention but represents background art that is usefull for understanding the invention. -
FIG. 4 is a graph of temperature measurement results at major parts of a blower and drying duct on a drying operation; -
FIG. 5 is a projected perspective diagram of a hot air supplying apparatus according to another embodiment of the present invention; -
FIG. 6 is a projected perspective diagram of major parts of the hot air supplying apparatus ofFIG. 5 ; and -
FIG. 7 is a perspective diagram of the hot air supplying apparatus ofFIG. 6 . - Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
-
FIG. 3 is a projected perspective diagram of a hot air supplying apparatus according to one embodiment of the present invention. - Referring to
FIG. 3 , a hotair supplying apparatus 300 according to one embodiment of the present invention includes alower housing 320 forming a air-flowing passage, anupper housing 310 assembled to a top portion of thelower housing 320, and ablower cover 330 assembled to a top portion of thelower housing 320 at one side of theupper housing 310 to contact with theupper housing 310. Additionally, theupper housing 320, thelower housing 310, and the blower cover 330 construct a drying duct for air-flowing. - The
blower 340 is provided to one end of thelower housing 320, and more specifically, to a portion of thelower housing 320 communicating with thecondensing duct 40 inFIG. 1 , and aheater 360 is provided to an opposite side to thelower housing 320 to heat air blown by theblower 340. - The
lower housing 320 can be formed by casting using steel. Moreover, theupper housing 310 can be formed by pressing using a zinc plate or preferably by injection molding using a synthetic resin material such as a plastic material. Alternatively, theupper housing 310 can be formed by casting using steel like thelower housing 320 as well. - Preferably, the
blower 340 is formed by injection molding of a synthetic resin material having a high heat resistant property. - Preferably, the
blower cover 330 is formed by injection molding of a synthetic resin material having a high heat-resistant property. - A
recess 331 for receiving amotor 350 driving theblower 340 therein is provided to theblower cover 330. Moreover, amotor guide 370 protrudes from a circumference of therecess 331 to load themotor 350 therein and to fix themotor 350 thereto. A rotational shaft of themotor 350 penetrates into theblower cover 330 to be coupled to theblower 340 for shaft-coupling. - An operation of the hot air supplying apparatus according to the present invention is explained as follows.
-
FIG. 4 is a graph of temperature-measurement results at major parts of a blower and drying duct on a drying operation. - Referring to
FIG. 4 , temperature sensors are attached to a portion A of theblower cover 300 having theblower 340 installed therein, a heater entrance B in the vicinity of a connecting part between theblower cover 330 and theupper housing 310, and a portion C of theupper housing 310 provided over theheater 360, respectively. A drying cycle is then carried out to measure temperature variations of the respective portions A, B, and C according to time. - As a result of the test, the vicinity A of the
blower 340 has a maximum temperature of 75°C and the entrance B of theheater 360 has a temperature of about 80°C. - Namely, the vicinity of the
blower cover 330 in the vicinity of theblower 340 has a prescribed amount of heat dissipation and cooling effects attributed to a rotation of theblower 340. Air that passes through theblower 340 and theblower cover 330 is further passed through the condensingduct 40 inFIG. 1 to decrease in humidity and temperature. Hence, the temperature is not so high as to break down the synthetic resin material having high heat-resistant property. - Based on the measurement result, a synthetic resin having an excellent heat-resistant property such as PVDF (polyvinylidene fluoride), POM (polyactal copoymer), and the like is preferably used as a material having excellent resistant properties against moisture, strong alkalinity, and oxidation. The POM can sustain excellent properties including mechanical strength, hardness, creep-proof, and the like as well as various kinds of mechanical feasibility by 100°C. Furthermore, the PVDF has a melting point of 170∼185°C and a continuously usable temperature of 120°C that is the lowest among fluoride resins. Yet, the PVDF has excellent processing features of injection molding, pressing forming, and the like as well as excellent mechanical and weathering properties.
- Of course, other synthetic resins such as PC (polycarbonate), each of which has high heat-resistant property and good low-temperature characteristic and us usable between (-) 100∼135°C, can be employed as well.
- If the
blower 340, theblower cover 330, and theupper housing 310 are formed by an injection process using a highly heat-resistant synthetic resin, they can be manufactured by a single process unlike the casting method which requires multiple steps. Hence, it is able to lower product cost, thus reducing overall product cost. - A hot air supplying apparatus according to the present invention is explained with reference to
FIGs. 5 to 7 as follows. - First of all configurations and materials of a
lower housing 1320, anupper housing 1310, and ablower 1340 of a hotair supplying apparatus 1300 according to another embodiment of the present invention are substantially identical to those of the former hotair supplying apparatus 300 according to one embodiment of the present invention. However, the hotair supplying apparatus 1300 according to another embodiment of the present invention differs from theapparatus 300 in configurations of ablower cover 1330 and amotor 1350 assembled to theblower cover 1330. - Specifically, a
recess 1331 is provided to theblower cover 1330 to receive themotor 1350 therein. Amotor guide 1370 protrudes upward along a circumference of therecess 1331. A plurality ofbosses 1371 are built in one body of themotor guide 1370 to fix themotor 1350 and themotor guide 1370 to each other. A plurality ofcable guide slots 1373 are provided to themotor guide 1370 to draw out apower cable 1352 of themotor 1350 that is loaded in theblower cover 1330. Preferably, each top end of thecable guide slots 1373 is fully open. - A
motor cover 1355 is fixed to a top portion of themotor 1350 via a plurality of locking screws 1356. In doing so, each of the locking screws 1356 is slightly projected downward. Hence, it is preferable that a plurality ofescape recesses 1372 are concavely provided to themotor guide 1370 to receive thecorresponding locking screws 1356 therein, respectively. Each of the escape recesses 1372 plays a role in preventing a lower end of the projected lockingscrew 1356 from colliding with themotor guide 1370, thereby smoothing the corresponding locking. - Meanwhile, the drum type washer with dry function is differently manufactured according to washing capacity such as 7.5kg, 10kg, and the like. Hence, a size and configuration of the
motor 1350 driving theblower 1340 are designed differently to correspond to the washing capacity. Therecess 1331 having themotor 1350 received therein has a depth enough for each of thevarious motors 1350 to be locked therein. - A position of the
power cable 1352 for supplying power of the motor is varied according to the corresponding one of the various motors. Hence, a plurality of thecable guide slots 1373 are provided along a circumference of themotor guide 1370 not to interfere with the position of thepower cable 1352 of the motor. - Meanwhile, a pump (not shown in the drawing) is provided to a lower part of the drum type washer with dry function. Moreover, a hose connected to the pump may traverse over the drying duct due to a configurational reason. Thus, if a hose or cable of an external device traverses over the drying duct, a
guide part 1338 and asupport recess 1339 are preferably provided to one side of themotor guide 1370 to support the hose or cable. In this case, thesupport recess 1339 having an open top is provided to theguide part 1338. - A
flange 1335 is provided to a circumference of theblower cover 1330 except the portion connected to theupper housing 1310 to be loaded on an outer circumference of thelower housing 1320. A plurality of lockingholes 1336 are provided to theflange 1335. A plurality of the locking holes 1336 are preferably provided to leave a prescribed distance from each other to secure compatibility of thelower housing 1320 of which locking position through the locking holes 1336 varies according to capacity of the washer/dryer. Optionally, each of the locking holes 1336 may be along hole 1337. - Preferably, the
blower 1340 and theblower cover 1330 are formed by injection molding using a synthetic resin material having an excellent heat-resistant property such as plastic. Preferably, themotor guide 1370 is formed by injection molding together with theblower cover 1330. Alternatively, themotor guide 1370 can be separately formed by injection molding and assembled to theblower cover 1330. - An assembling process of the above-configured hot air supplying apparatus according to the present invention is explained as follows.
- First of all, the
motor cover 1355 is assembled to the top portion of themotor 1350 using the locking screws 1356. In doing so, the lockingscrews 1356 are slightly projected downward. - Subsequently, the
motor 1350 is inserted inside therecess 1331 of theblower cover 1331 to be loaded in themotor guide 1370. In doing so, thepower cable 1352 of themotor 1350 is drawn out via theguide slot 1373. Furthermore, the lockingscrews 1356 are inserted in the escape recesses 1372 of themotor guide 1370 to prevent interference with a surface of themotor guide 1370, respectively. -
Screws 1358 are then locked via the locking holes 1357 of themotor 1350 and thebosses 1371 of themotor guide 1370, respectively to fixedly assemble themotor 1350 to themotor guide 1370. - Once the
motor 1350 is fixed to theblower cover 1330, theblower cover 1330, as shown inFIG. 5 , is loaded on thelower housing 1320. Subsequently, screws 1380 are locked via the locking holes 1336 andlong holes 1337 of theflange 1335 and the locking holes 1322 of thelower housing 1320, respectively to assemble theblower cover 1330 to thelower housing 1320. - As mentioned in the above explanation, if positions of the locking holes 1322 of the lower housing are changed according to the capacity of the washer, the
screws 1358 can be locked in anotheradjacent locking holes 1336 among the lockingholes 1336, respectively. Moreover, since thelong holes 1336 are provided for another screw locking, it is able to cope with a slight position variation of thecorresponding locking hole 1322 of thelower housing 1320. Hence, without changing the structure and size of the blower cover and the locking hole position, and the like despite the variation of the applicable model according to the washing capacity, it is able to configure the hot air supplying apparatus using the same blower cover. - Moreover, even if the size of the
motor 1350 is changed, the lockingscrew 1356 projected from themotor 1350 avoids contacting with themotor guide 1370 and thepower cable 1352 of themotor 1350 can be easily drawn out via one of thecable guide slots 1373 provided to various locations of themotor guide 1370. Hence, it is able to fix themotor 1350 variously differing in size thereto using thesame blower cover 1330 without modifying the structure of theblower cover 1330. - Accordingly, by forming the upper housing with the zinc plate and by forming the blower and blower cover with the synthetic resin material by injection molding, the present invention simplifies the manufacturing process and lowers the product cost, thereby enhancing user's economical advantage and reliability on the product and manufacturer.
- Moreover, the same blower cover is applicable despite modifications of the structures and sizes of the lower housing and motor according to the capacity of the washer, whereby the present invention enhances compatibility, lowers the product cost, and facilitates maintenance and management thereof.
- It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
- An apparatus for supplying hot air in a drum type washer with dry function, comprising: a first duct housing (1320) provided to a tub included in the drum type washer; a second duct housing (1310) provided to an upper side of the first duct housing (1320); a blower cover (1330) provided to the upper side of the first duct housing (1320) adjacent to the second duct housing (1310), and the blower cover (1330) having a recess (1331); a heater (1360) provided between the first and second duct housings (1320, 1310); a motor (1350) coupled with the recess (1331) of the blower cover (1330); a blower (1340) provided under the blower cover (1330), the blower (1340) being rotatably connected to the motor (1350); and a motor guide (1370) protruding upward along an outer circumference of the recess of the blower cover (1330),
characterized in that
the blower cover (1330) is formed of a synthetic resin based material, in that
the motor guide (1370) comprises a plurality of bosses (1371) having screws locked therein for coupling with the motor (1350), respectively; and at least one escape recess (1372) for receiving a projected portion of a locking screw (1356) separately locked in the motor; and in that
the apparatus further comprises a flange (1335) provided to a circumference of the blower cover (1330), wherein a plurality of locking holes (1336) are provided to the flange and are provided at prescribed distances from each other hole. - The apparatus of claim 1, wherein the blower (1340) is formed of an injection material of a synthetic resin based material.
- The apparatus of claim 1, wherein the second duct housing (1310) is formed of an injection material of a synthetic resin based material.
- The apparatus of claim 1, wherein the second duct housing (1310) is formed of zinc.
- The apparatus of claim 1, wherein the motor guide (1370) is built in one body of the blower cover (1330) by injection molding.
- The apparatus of claim 1, wherein the motor guide (1370) is separately formed to be assembled to the blower cover (1330).
- The apparatus of claim 6, wherein the motor guide (1370) is an injection material of a synthetic resin based material.
- The apparatus of claim 1, wherein a shape of the locking hole can be circular, square, oval, or rectangular.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2005/000648 WO2006095935A2 (en) | 2005-03-09 | 2005-03-09 | Apparatus for supplying hot air in drum type washer with dry function |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1856319A2 EP1856319A2 (en) | 2007-11-21 |
EP1856319B1 true EP1856319B1 (en) | 2009-10-07 |
Family
ID=36953762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05856292A Not-in-force EP1856319B1 (en) | 2005-03-09 | 2005-03-09 | Apparatus for supplying hot air in drum type washer with dry function |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1856319B1 (en) |
CN (1) | CN100590250C (en) |
AT (1) | ATE445041T1 (en) |
AU (1) | AU2005328773B2 (en) |
DE (1) | DE602005017078D1 (en) |
WO (1) | WO2006095935A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109537257A (en) * | 2019-01-03 | 2019-03-29 | 曾庆兰 | A kind of wind guiding systems of appliance system |
KR20220113024A (en) * | 2021-02-05 | 2022-08-12 | 엘지전자 주식회사 | Laundry treatment apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT218167Z2 (en) * | 1988-05-30 | 1992-04-08 | Zanussi A Spa Industrie | HEATING DEVICE FOR COMBINED MACHINE FOR WASHING AND DRYING THE LINEN. |
KR100446773B1 (en) * | 2002-04-24 | 2004-09-01 | 엘지전자 주식회사 | Aeration apparatus for drum type dry/washing machine |
-
2005
- 2005-03-09 DE DE602005017078T patent/DE602005017078D1/en active Active
- 2005-03-09 EP EP05856292A patent/EP1856319B1/en not_active Not-in-force
- 2005-03-09 AT AT05856292T patent/ATE445041T1/en not_active IP Right Cessation
- 2005-03-09 CN CN200580049036A patent/CN100590250C/en not_active Expired - Fee Related
- 2005-03-09 WO PCT/KR2005/000648 patent/WO2006095935A2/en active Application Filing
- 2005-03-09 AU AU2005328773A patent/AU2005328773B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
ATE445041T1 (en) | 2009-10-15 |
CN100590250C (en) | 2010-02-17 |
EP1856319A2 (en) | 2007-11-21 |
DE602005017078D1 (en) | 2009-11-19 |
AU2005328773B2 (en) | 2009-08-20 |
WO2006095935A2 (en) | 2006-09-14 |
CN101142354A (en) | 2008-03-12 |
AU2005328773A1 (en) | 2006-09-14 |
WO2006095935A3 (en) | 2007-03-08 |
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