KR20050061824A - Cooling fan for a household electric appliance - Google Patents
Cooling fan for a household electric appliance Download PDFInfo
- Publication number
- KR20050061824A KR20050061824A KR1020030093313A KR20030093313A KR20050061824A KR 20050061824 A KR20050061824 A KR 20050061824A KR 1020030093313 A KR1020030093313 A KR 1020030093313A KR 20030093313 A KR20030093313 A KR 20030093313A KR 20050061824 A KR20050061824 A KR 20050061824A
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- South Korea
- Prior art keywords
- cooling fan
- motor shaft
- adhesive
- hub
- grooves
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
본 발명은 가전제품용 냉각팬에 관한 것으로, 냉각팬(10)의 허브(11)를 구동 모터의 모터축(15)에 끼워 접착제로 접합 고정하도록 된 가전제품용 냉각팬에 있어서, 냉각팬의 허브(11)의 단부면에 걸림턱부(12)을 형성하고, 모터축에 대한 냉각팬의 관성력에 대하여 증가된 지지력을 갖도록 그 걸림턱부(12)의 대향측에 방사상으로 직경이 확대된 요홈부(13)의 내측면에는 다수의 톱니형의 홈(14, 20)들을 형성하고, 그에 대향된 모터축(15)의 외주면에도 톱니형의 홈(16, 21)들을 형성하여 접착제가 상기 톱니형의 홈들에 유입되어 접합고정되도록 구성된 것을 특징으로 하여 구성됨으로써, 냉각팬의 관성력의 방향에 대하여 홈들의 측벽에 의해 지지되게 하여 접착제와의 접착 표면이 분리되지 않게 되므로 종래 장기간 사용시 모터축과 허브와의 접착면이 분리됨에 따른 냉각팬의 고장을 방지하여 냉각팬의 내구성이 향상되는 장점이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling fan for home appliances, comprising: a cooling fan for home appliances in which a hub 11 of a cooling fan 10 is fitted to a motor shaft 15 of a drive motor and bonded and fixed with an adhesive. The recessed part 12 is formed in the end surface of the hub 11, and the recessed part extended radially in the diameter on the opposite side of the said latched part 12 so that it may have the increased support force with respect to the inertia force of a cooling fan with respect to a motor shaft. A plurality of toothed grooves 14 and 20 are formed on the inner side of the 13, and the toothed grooves 16 and 21 are also formed on the outer circumferential surface of the motor shaft 15 opposite thereto so that the adhesive is the toothed type. It is configured to be joined and fixed to the grooves of the, by being supported by the side wall of the grooves in the direction of the inertial force of the cooling fan, so that the adhesive surface with the adhesive is not separated from the motor shaft and the hub in the conventional long-term use Since the adhesive side of There is an advantage that the durability of the cooling fan is improved by preventing the failure of the cooling fan.
Description
본 발명은 가전제품용 냉각팬에 관한 것으로, 특히 장시간 사용시에도 모터축과의 결합상태가 저하되지 않도록 개선된 구조의 허브를 갖는 냉각팬에 관한 것이다.The present invention relates to a cooling fan for home appliances, and more particularly, to a cooling fan having a hub having an improved structure so that the state of engagement with the motor shaft does not degrade even when used for a long time.
일반적으로, 예를들어 냉장고용 냉각팬은 콘덴서와 압축기를 냉각시키고, 증발명에서 제상수가 신속하게 증발될 수 있도록 바람을 송풍하여 냉각시키거나 냉동실로 냉기를 송풍하도록 사용되는 것으로, 구동모터의 출력축에 결합된다.In general, for example, a cooling fan for a refrigerator is used to cool a condenser and a compressor, and to cool and blow air to blow defrost water rapidly in an evaporation name, or to blow cold air into a freezing compartment. Coupled to the output shaft.
이러한 냉각팬을 모터축에 결합시키는 구조는 냉각팬의 허브에 걸림부를 형성하고 그 걸림부를 모터축의 외주면에 형성된 홈에 맞물리게 하여 분해가능하게 고정하거나, 소형 냉각팬의 경우에는 접착제에 의해 모터축에 접합시켜 일체화되게 조립하였다.The structure that couples the cooling fan to the motor shaft has a locking portion formed on the hub of the cooling fan and engages the locking portion with the groove formed on the outer circumferential surface of the motor shaft, so that the cooling fan can be detachably fixed, or in the case of a small cooling fan to the motor shaft by adhesive Bonded and assembled to unite.
도 1과 도 2에 도시된 종래의 소형 냉각팬(1)의 경우에는 냉각팬(1)의 허브(2)를 모터축(3)에 고정시켜 조립하였다. 이를 위하여 상기 냉각팬(1)의 허브는 모터축(3)을 삽입할 수 있도록 홀(4)이 형성되어 있으며, 그 홀(4)의 단부에는 모터축에 걸리도록 걸림턱(5)이 형성되고, 부분적으로 개방된 개구부(6)가 형성되어 있다. 상기 개구부(6)는 반경방향으로 직경이 확대된 홈(7)이 형성되어 있으며, 그 홈에 접착제를 주입하여 허브(2)를 모터축(3)에 접합시켜 고정하였다.In the case of the conventional small cooling fan 1 shown in FIGS. 1 and 2, the hub 2 of the cooling fan 1 is assembled by being fixed to the motor shaft 3. To this end, the hub of the cooling fan (1) has a hole (4) is formed so that the motor shaft (3) can be inserted, the locking jaw (5) is formed at the end of the hole (4) to be caught by the motor shaft And a partially open opening 6 is formed. The opening 6 has a groove 7 having a diameter enlarged in the radial direction, and an adhesive is injected into the groove to fix the hub 2 to the motor shaft 3.
그러나, 이와 같은 종래 모터축에의 냉각팬 허브를 고정하는 구조는 냉각팬이 고속으로 구동되고 장시간 사용함에 따라 접착제에 의해 고정된 냉각팬 허브와 모터축의 결합면이 분리되어 슬립이 발생됨에 따라 냉각팬의 기능을 발휘하지 못하게 되는 문제가 있었다.However, the structure for fixing the cooling fan hub to the conventional motor shaft is cooled as the cooling fan is driven at high speed and the coupling surface of the cooling fan hub and the motor shaft fixed by the adhesive is separated by the use of a long time, the slip is generated There was a problem that the fan will not function.
본 발명은 종래 가전제품용 냉각팬에서 접착제에 의해 접합된 허브와 모터축의 분리에 의한 슬립 현상의 발생에 대한 문제점을 해소하기 위하여 안출된 것으로, 냉각팬의 허브와 모터축의 접착제에 의한 접합이 보다 확고하게 유지되도록 개선된 구조의 허브를 갖는 가전제품용 냉각팬의 제공을 목적으로 한다. The present invention has been made to solve the problem of the slip phenomenon caused by the separation of the hub and the motor shaft bonded by the adhesive in the conventional cooling fan for home appliances, the bonding of the hub and the motor shaft of the cooling fan by the adhesive An object of the present invention is to provide a cooling fan for a home appliance having a hub of an improved structure to be firmly maintained.
상기한 목적을 달성하기 위한 본 발명에 따른 가전제품용 냉각팬은 냉각팬의 허브를 구동 모터의 모터축(15)에 끼워 접착제로 접합 고정하도록 된 가전제품용 냉각팬에 있어서, 냉각팬의 허브의 단부면에 걸림턱부을 형성하고, 모터축에 대한 냉각팬의 관성력에 대하여 증가된 지지력을 갖도록 그 걸림턱부의 대향측에 방사상으로 직경이 확대된 요홈부의 내측면에는 다수의 톱니형의 홈들을 형성하고, 그에 대향된 모터축의 외주면에도 톱니형의 홈들을 형성하여 접착제가 상기 톱니형의 홈들에 유입되어 접합고정되도록 구성되는 것을 특징으로 한다. The cooling fan for home appliances according to the present invention for achieving the above object is a cooling fan for home appliances in which the hub of the cooling fan is inserted into the motor shaft 15 of the drive motor to be bonded and fixed with an adhesive, the hub of the cooling fan A plurality of notched grooves are formed on the inner side of the recessed portion of which the engaging jaw portion is formed on the end surface of the recessed portion and the diameter of the radially enlarged portion is opposite to the engaging side of the engaging jaw portion so as to have an increased bearing force against the inertia force of the cooling fan against the motor shaft. And a tooth-shaped groove is formed on the outer circumferential surface of the motor shaft opposite thereto so that an adhesive is introduced into the tooth-shaped grooves and fixed to join.
이하에서는 본 발명의 일실시예에 따른 냉각팬 허브와 모터축의 결합구조는 도시한 첨부 도면을 참고하여 보다 상세히 설명하기로 한다.Hereinafter, the coupling structure of the cooling fan hub and the motor shaft according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 3과 도 4에 도시된 실시예에서, 본 발명에 따라 냉각팬(10)의 허브(11)의 단부면에 걸림턱부(12)을 형성하고, 그 걸림턱부(12)의 대향측에 방사상으로 직경이 확대된 요홈부(13)를 형성한다.In the embodiment shown in Figs. 3 and 4, in accordance with the present invention, the locking projection 12 is formed on the end face of the hub 11 of the cooling fan 10, and the locking projection 12 is radially opposite to the locking projection 12. To form a groove 13 having an enlarged diameter.
상기 요홈부(13)의 저면에는 다수의 톱니형의 홈(14)들을 형성하고, 또한, 모터축(15)의 외주면에도 톱니형의 홈(16)들을 형성하였다.A plurality of toothed grooves 14 are formed on the bottom of the recess 13, and toothed grooves 16 are also formed on the outer circumferential surface of the motor shaft 15.
이와같이 냉각팬 구동 모터의 모터축(15)과, 그 모터축에 끼워져 접착제에 의하여 고정되는 냉각팬의 허브(11)에 형성한 요홈부(13) 내측면에도 톱니형의 홈(14)들을 형성함으로써 접착제가 상기 톱니형의 홈(14,16)들에 유입되어 접합되므로, 냉각팬의 구동시 또는 정지시에 모터축의 정지 상태에 대하여 냉각팬의 관성력에 의해 접합면에 작용되는 힘에 대하여 종래 평탄한 표면에서 접착제에 의해 접합되는 것과 비교하여 톱니형의 홈들의 측벽에서 접합되므로 지지력이 증대되어 접착면이 분리되지 않게 된다.In this manner, toothed grooves 14 are formed on the motor shaft 15 of the cooling fan drive motor and on the inner surface of the recess 13 formed in the hub 11 of the cooling fan fitted to the motor shaft and fixed by the adhesive. Since the adhesive is introduced into the sawtooth grooves 14 and 16 and bonded, the adhesive is applied to the joint surface by the inertia force of the cooling fan against the stationary state of the motor shaft when the cooling fan is driven or stopped. Bonding on the sidewalls of the sawtooth grooves as compared to bonding by the adhesive on a flat surface increases the bearing force so that the adhesive surface does not separate.
또한, 도 5에는 도 4와 다른 실시예로서 상기한 냉각팬 허브(11)의 요홈부(13)에 형성하는 홈(20)과 구동 모터의 모터축(15)의 외주면에 형성하는 홈(21)의 형상을 단면이 사각형의 형상이 되게 형성함으로써 회전 방향에 대한 홈(20,21)의 지지력이 증가되도록 하여 접착제에 의한 접합면이 분리되지 않고 더욱 향상된 내구성을 갖게 되다. 5 is a groove 21 formed in the groove portion 13 of the recess 13 of the cooling fan hub 11 and a groove 21 formed in the outer peripheral surface of the motor shaft 15 of the drive motor. By forming the cross section in the shape of a square, the bearing force of the grooves 20 and 21 in the rotational direction is increased, so that the bonding surface by the adhesive is not separated and further improved durability.
본 발명에 따라 냉각팬의 허브를 냉각팬 구동 모터의 모터축에 끼워 접착제로 접합함에 있어서, 냉각팬의 허브 내측과 구동 모터의 모터축 외주면에 홈들을 형성하여 접착제가 상기 홈들에 유입되어 접착되게 함으로써 회전력의 방향에 대하여 홈들의 측벽에 의해 지지되게 하여 접착제와의 접착 표면이 분리되지 않게 되므로 종래 장기간 사용시 모터축과 허브와의 접착면이 분리됨에 따른 냉각팬의 고장을 방지하여 냉각팬의 내구성이 향상되는 장점이 있다.In bonding the hub of the cooling fan to the motor shaft of the cooling fan drive motor by bonding the adhesive, grooves are formed in the hub of the cooling fan and the outer surface of the motor shaft of the driving motor so that the adhesive is introduced into the grooves. As a result, it is supported by the side walls of the grooves in the direction of the rotational force so that the adhesive surface with the adhesive is not separated. Thus, the durability of the cooling fan is prevented by preventing the failure of the cooling fan due to the separation of the adhesive surface between the motor shaft and the hub during long-term use. This has the advantage of being improved.
도 1은 종래 가전제품용 냉각팬의 허브와 모터축의 결합구조를 개략적으로 보여주는 단면도.1 is a cross-sectional view schematically showing a coupling structure of a hub and a motor shaft of a cooling fan for a conventional household appliance.
도 2는 도 1의 냉각팬의 허브와 모터축의 결합 구조를 보여주는 사시도.Figure 2 is a perspective view showing a coupling structure of the hub and the motor shaft of the cooling fan of Figure 1;
도 3은 본 발명에 의한 냉각팬의 허브와 모터축의 결합구조를 보여주는 사시도.Figure 3 is a perspective view showing a coupling structure of the hub and the motor shaft of the cooling fan according to the present invention.
도 4는 도 3에 도시된 냉각팬의 허브의 확대된 정면도.4 is an enlarged front view of the hub of the cooling fan shown in FIG.
도 5는 도 3과 다른 실시예의 본 발명에 의한 냉각팬 허브의 정면도.5 is a front view of a cooling fan hub according to the present invention of FIG. 3 and another embodiment.
* 도면의 주요 부분에 대한 부호의 설명 * Explanation of symbols for the main parts of the drawings
10 : 냉각팬 11 : 허브10: cooling fan 11: hub
15 : 모터축 14, 16, 20, 21 : 홈 15: motor shaft 14, 16, 20, 21: groove
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030093313A KR20050061824A (en) | 2003-12-18 | 2003-12-18 | Cooling fan for a household electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030093313A KR20050061824A (en) | 2003-12-18 | 2003-12-18 | Cooling fan for a household electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050061824A true KR20050061824A (en) | 2005-06-23 |
Family
ID=37254103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030093313A KR20050061824A (en) | 2003-12-18 | 2003-12-18 | Cooling fan for a household electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20050061824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101461240B1 (en) * | 2008-09-03 | 2014-11-14 | 엘지전자 주식회사 | Fan motor |
-
2003
- 2003-12-18 KR KR1020030093313A patent/KR20050061824A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101461240B1 (en) * | 2008-09-03 | 2014-11-14 | 엘지전자 주식회사 | Fan motor |
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