CN1611883A - Air blowing device for refrigerator - Google Patents
Air blowing device for refrigerator Download PDFInfo
- Publication number
- CN1611883A CN1611883A CN 200310106865 CN200310106865A CN1611883A CN 1611883 A CN1611883 A CN 1611883A CN 200310106865 CN200310106865 CN 200310106865 CN 200310106865 A CN200310106865 A CN 200310106865A CN 1611883 A CN1611883 A CN 1611883A
- Authority
- CN
- China
- Prior art keywords
- air
- supporting leg
- guard shield
- motor
- blowing fan
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0681—Details thereof
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention refers to a kind of blowing device of the fridge. Its feature is that it comprises cleading, blowing fan, electric machine, electric machine holding frame and supporting leg; The center of the cleading is formed hole guiding the flow of the air; the blowing fan is set in the inner side of the cleading hole to send air; the electric machine is used to drive the blowing fan; the electric machine holding frame is used to fasten the electric machine; the supporting leg is used to separate the electric machine holding frame and cleading, and its out surface is flat. The advantage of the blowing device is that the inhalational air will not be balked and detained at the out surface of the supporting leg; this can eliminate the noise and the flow loss of the airflow caused by that the that the inhalational air is balked and detained at the out surface of the supporting leg, further can minimize the noise and flow lost of the blowing device.
Description
Prior art
The present invention relates to the air-supply arrangement of refrigerator.
Background technology
In general, refrigerator is the device that is used for preserving food, and it can utilize kind of refrigeration cycle that cold air is provided, and with food cooling or prevent that it from rotting, thereby makes food keep fresh state for a long time.
As shown in Figure 1, refrigerator possesses one and has formed the outward appearance of refrigerator and the exterior case of open at its front (outcase) (1), and the inside casing (inner case) (2) of isolating with it is equipped with in the inside of exterior case (1).The inside of inner casing (2) has formed refrigerating chamber (A) and refrigerating chamber (B) from top to bottom, the door (3,4) that is being connected through the hinge respectively up and down of said external casing (1) front, thereby can make refrigerating chamber and refrigerating chamber realize opening and closure the following Machine Room (C) that formed of refrigerating chamber (B).
, between the exterior case (1) of this side of above-mentioned refrigerating chamber (A) and the inner casing (2) evaporimeter (5) is housed here, above-mentioned evaporimeter (5) can make ambient air realize cooling by the heat exchange with cold-producing medium.In order to make cold air externally form other passage between casing (1) and the inner casing (2) to refrigerating chamber (A) or refrigerating chamber (B) circulation.On the passage of evaporimeter (5) top air-supply arrangement (10) is housed, this air-supply arrangement (10) can be carried the cold air that has been cooled in evaporimeter to refrigerating chamber or refrigerating chamber.
In addition, the compressor (6), condenser (not shown), the expansion gear (not shown) that are connected with evaporimeter (5) by refrigerant tubing are housed in the above-mentioned Machine Room (C), they have constituted kind of refrigeration cycle, thereby can make above-mentioned refrigerating chamber (A) and refrigerating chamber (B) keep low-temperature condition.
As shown in Figures 2 and 3, above-mentioned air-supply arrangement (10) is by constituting with lower member: guard shield (12), and its central authorities have formed hole (12h), thereby can guide cold air flow; Blowing fan (14), the inboard of hole (12h) that it is installed in above-mentioned guard shield (12) also can rotate, and cold air can be transferred out during its rotation; Motor (16), its rotating shaft (15) is connected with blowing fan (14), thereby it can drive blowing fan (14) rotation; Motor bracing frame (18), it is used for installing motor (16); Several supporting legs (20), they are positioned between the peripheral part and motor bracing frame (18) in hole of guard shield (12), and integrally formed with above-mentioned guard shield (12) and motor bracing frame (18), they can be separated the motor bracing frame (18) and the hole (12h) of guard shield (12).
Specifically, above-mentioned guard shield (12) is that level is installed, and doing like this is in order to make it keep vertical with passage.The periphery in the hole of above-mentioned guard shield (12h) has formed the bellmouth (12a) of ring (ring) shape, and it can guide flowing of the air-flow that is inhaled into.
Meanwhile, in order to be the direction of principal axis guiding vertically with the cold air that flows through above-mentioned evaporimeter (5), the periphery of the wheel shaft (14a) that is connected with rotating shaft (15) on the said fan (14) has formed several blades (14b).
Therefore, if said fan (14) rotation, the cold air that flows through above-mentioned evaporimeter (5) so will be subjected to the guiding of above-mentioned bellmouth (12a), discharge upward by the hole (12h) of guard shield (12), thus circulation in refrigerating chamber (A) and refrigerating chamber (B).
In addition, in order to gain in strength, the both sides of above-mentioned supporting leg (20) have formed the rib shape projection (rib) (20a, 20b) of outside bending, and the cross section of this supporting leg (20) is, and " [" shape has opening toward the outer side.
Have a look the effect of existing air-supply arrangement below with said structure.
At first, if motor (16) drives, blowing fan (14) will rotate in the inside in the hole of guard shield (12) (12h) so, thereby produces air-supply power.
At this moment, the air of guard shield (12) below can be inhaled into by the circumferencial direction from blowing fan (14) below under the effect of air-supply power, flows through guard shield (12) then, discharges to the circumferencial direction of guard shield (12) top.
But, there is following problem in the air-supply arrangement of the refrigerator of prior art: when blowing fan (14) rotates, the air that is attracted to the annular hole, below of blowing fan (14) is understood in the slit (t) between some rib shape projection (20a, 20b) that flows into above-mentioned supporting leg (20), thereby produces noise.Moreover, the rib shape projection (20a, 20b) of above-mentioned supporting leg (20) also can cause the flow losses of air-flow, thereby air-supply efficient is reduced, and power consumption is increased.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides a kind of air-supply arrangement of refrigerator, not only noise can be dropped to minimum, can also improve air-supply efficient simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air-supply arrangement of refrigerator is characterized in that it includes guard shield, blowing fan, motor, motor bracing frame and supporting leg; The central authorities of described guard shield have formed the hole that can guide air to flow; Described blowing fan is positioned at the inboard in the hole of described guard shield, air can be sent; Described motor is used for driving described blowing fan; Described motor bracing frame is used for fixing described motor; They can separate described supporting leg described motor bracing frame and described guard shield, and its outer surface is smooth.
The air-supply arrangement of described refrigerator, wherein the both sides of supporting leg have formed the rib shape projection of inside bending.
The air-supply arrangement of described refrigerator, wherein the position, boundary of supporting leg and described motor bracing frame has formed open pore.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the diagrammatic depiction of general refrigerator
Fig. 2 is the exploded perspective view of air-supply arrangement of the refrigerator of prior art
Fig. 3 is the sectional view of air-supply arrangement of the refrigerator of prior art
Fig. 4 is the exploded perspective view of the air-supply arrangement of refrigerator of the present invention
Fig. 5 is the sectional view of the air-supply arrangement of refrigerator of the present invention
Fig. 6 is the A-A sectional view of Fig. 4
Fig. 7 is the B-B sectional view of Fig. 4
Fig. 8 is in the air-supply arrangement of the air-supply arrangement of refrigerator of prior art and refrigerator of the present invention, the curve map that noise changes with air quantity
Fig. 9 is in the air-supply arrangement of the air-supply arrangement of refrigerator of prior art and refrigerator of the present invention, the curve map that noise changes with frequency
The number in the figure explanation:
51: hole 52: guard shield (shroud)
54: bellmouth 60: pressure fan
62: wheel shaft (hub) 64: blade
70: motor 72: rotating shaft
80: motor bracing frame 82: round plate
84: bending part 90: supporting leg
92: outer surface 94a, the 94b of supporting leg: rib shape projection (rib)
98: open pore
The specific embodiment
With reference to the accompanying drawings example of the present invention is described in detail.
To shown in Figure 5, refrigerator of the present invention comprises with lower member with air-supply arrangement as Fig. 4: guard shield (52), and its central authorities have formed the hole (51) that can guide air to flow; Blowing fan (60), it is positioned at the inboard in the hole (51) of described guard shield (52), air can be sent; Motor (70), it is used for driving described blowing fan (60); Motor bracing frame (80), it is used for installing motor (70); Several supporting legs (90), they can be separated above-mentioned motor bracing frame (80) and above-mentioned guard shield (52).
The periphery in the hole (51) of above-mentioned guard shield (52) has formed the bellmouth (54) of ring (ring) shape, and it can guide flowing of the air-flow that is inhaled into.
Said fan (60) is by forming with the lower part: the axle center is connecting the wheel shaft (62) of rotating shaft (72) of above-mentioned motor (70) and several blades (64) that form in the periphery of wheel shaft (62).And the axial flow fan that said fan (60) preferably can be discharged the air of below upward.
Therefore, if blowing fan (60) drives, air will be subjected to the guiding of above-mentioned bellmouth (54) so, is inhaled into from the below circumferencial direction of said fan (60), discharges to the top of blowing fan (60) circumferencial direction then.
The mounting means of motor (70) is as follows: its rotating shaft (72) up, its body is installed on the motor bracing frame (80).
Motor bracing frame (80) is by forming with the lower part: round plate (82), its middle body is a hollow, motor (70) can be placed in it above; Several bending parts (84), they from round plate (82) thus the outer end highlight and be separated by with it, and be bent into " " shape, thereby outer surface that can support motor.Described bending part (84) is as Fig. 4 and shown in Figure 6, and in order to gain in strength, their both sides have formed the rib shape projection (84a, 84b) of outside bending, thereby their cross section is, and " [" shape has opening toward the outer side.
Supporting leg (90) lays respectively between the end of bending part (84) of the peripheral part in hole (51) of guard shield (52) and motor bracing frame (80), and integrally formed with guard shield (52) and motor bracing frame (80).
In addition, the outer surface (92) of above-mentioned each supporting leg (90) all is smooth, and so, when blowing fan (60) rotated, the air that is inhaled into just can some not be subjected to the obstruction of outer surface (92).
That is to say that the flat outer surface (92) that the air that is inhaled into from the outside of supporting leg (90) by the rotation of blowing fan (60) bumps against supporting leg (90) will be guided afterwards, thereby be inhaled into the gap of several supporting legs (90).
In addition, above-mentioned supporting leg (90) is extremely shown in Figure 7 as Fig. 4, in order to gain in strength, their both sides have formed inside bending rib shape projection (94a, 94b), thereby their cross section also is " [" shape, but direction is opposite with the direction of the bending part (84) of above-mentioned motor bracing frame (80), towards the inboard opening is arranged.
In addition, in order to make above-mentioned guard shield (52) and several supporting legs (90) and motor bracing frame (80) integrally formed, their the most handy a whole set of moulds are made when making, and because the structure of this mould, thereby the position, boundary of above-mentioned several supporting legs (90) and motor bracing frame (80) can form open pore (98).
Have a look the course of action of air-supply arrangement of the present invention below with said structure.
At first, along with the driving of motor (70), blowing fan (60) can begin rotation, so the air of guard shield (52) below can be attracted to the hole (51) of guard shield (52) under the effect of the air-supply power of blowing fan.
The major part of the air that is inhaled into like this can flow to the hole (51) of above-mentioned guard shield (52) by the gap of above-mentioned supporting leg (90), and the part of air that is inhaled into can bump against the outer surface of above-mentioned several supporting legs (90).
At this moment, since the outer surface of supporting leg (90) be not depression but smooth, therefore the air that bumps against the outer surface of supporting leg (90) can not be obstructed or is detained in the outer surface of supporting leg (90), but is directed to the both sides of supporting leg (90), thereby flows to the hole (51) of guard shield (52).
If the air that bumps against on the outer surface of above-mentioned supporting leg (90) is obstructed or is detained in the outer surface of supporting leg (90), will produce noise so and can cause the flow losses of air-flow.And therefore air-supply arrangement of the present invention can abate the noise and flow losses in this case owing to have said structure, thereby reduces to the noise and the flow losses of air-supply arrangement minimum.
In addition, the air that is attracted to the hole (51) of above-mentioned guard shield (52) can flow through the hole (51) of guard shield (52), discharges to the top of guard shield (52) then.
As shown in Figure 8, air-supply arrangement of the present invention is compared with existing air-supply arrangement, and its noise has reduced 1dB (A) approximately under identical air quantity, and moreover, its air quantity has increased under identical noise.As shown in Figure 9, air-supply arrangement of the present invention is compared with existing air-supply arrangement, and under specific frequency, its peak noise has obtained significant reduction.
The effect of invention
Because in the air-supply arrangement of the refrigerator of the present invention with said structure, blowing fan is installed in guard shield The inboard in hole, the motor that is used for driving blowing fan is fixed on the motor support frame, for guard shield and electricity The machine bracing frame is kept apart, and form several between guard shield and the motor support frame and supported leg, and several The outer surface that supports leg is smooth, so the present invention has the following advantages: air amount can not support The outer surface of leg is obstructed or is detained, and is subjected in the outer surface that supports leg thereby can eliminate because of air amount Resistance or be detained and the noise that produces and the flow losses of air-flow, and then with the noise of air-supply arrangement with flow Loss is down to minimum.
In addition, because the rib shape projection of the inside bending that the both sides of above-mentioned support leg form, thereby have energy Enough advantages that increases the intensity that supports leg or motor support frame.
In addition, owing to formed open pore at the position, boundary of above-mentioned support leg and said motor bracing frame, Therefore have the following advantages, namely above-mentioned guard shield and support leg and motor support frame can be utilized a whole set of Mould is integrally formed.
Claims (3)
1, a kind of air-supply arrangement of refrigerator is characterized in that it includes guard shield, blowing fan, motor, motor bracing frame and supporting leg; The central authorities of described guard shield have formed the hole that can guide air to flow; Described blowing fan is positioned at the inboard in the hole of described guard shield, air can be sent; Described motor is used for driving described blowing fan; Described motor bracing frame is used for fixing described motor; They can separate described supporting leg described motor bracing frame and described guard shield, and its outer surface is smooth.
2, the air-supply arrangement of refrigerator according to claim 1 is characterized in that the both sides of described supporting leg have formed the rib shape projection of inside bending.
3, the air-supply arrangement of refrigerator according to claim 1 is characterized in that having formed open pore at the position, boundary of described supporting leg and described motor bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068658A CN100380074C (en) | 2003-10-30 | 2003-10-30 | Air blowing device for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068658A CN100380074C (en) | 2003-10-30 | 2003-10-30 | Air blowing device for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611883A true CN1611883A (en) | 2005-05-04 |
| CN100380074C CN100380074C (en) | 2008-04-09 |
Family
ID=34757836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101068658A Expired - Fee Related CN100380074C (en) | 2003-10-30 | 2003-10-30 | Air blowing device for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100380074C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510156A (en) * | 2011-10-08 | 2012-06-20 | 合肥美的荣事达电冰箱有限公司 | Motor mounting bracket for refrigerator and refrigerator with same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920004982Y1 (en) * | 1990-09-28 | 1992-07-25 | 삼성전자 주식회사 | Freeze room duct for refrigerator |
| JP2001159399A (en) * | 1999-12-03 | 2001-06-12 | Matsushita Refrig Co Ltd | Axial blower |
| US6634181B2 (en) * | 2001-08-31 | 2003-10-21 | Lg Electronics Inc. | Cooling air supply apparatus of refrigerator |
| JP3793173B2 (en) * | 2002-11-25 | 2006-07-05 | エルジー電子株式会社 | Blower for cold air circulation in refrigerator |
-
2003
- 2003-10-30 CN CNB2003101068658A patent/CN100380074C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510156A (en) * | 2011-10-08 | 2012-06-20 | 合肥美的荣事达电冰箱有限公司 | Motor mounting bracket for refrigerator and refrigerator with same |
| CN102510156B (en) * | 2011-10-08 | 2015-06-17 | 合肥美的电冰箱有限公司 | Motor mounting bracket for refrigerator and refrigerator with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100380074C (en) | 2008-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIZHOU LG ELECTRONICS FREEZER CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS ( TIANJIN ) ELECTRICAL APPLIANCES CO., LTD. Effective date: 20091225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091225 Address after: Yingbin Road, Taizhou Economic Development Zone, No. 2 Patentee after: Taizhou LG Electronics Refrigerator Co., Ltd. Address before: Beichen District, Tianjin Xing Lake Road Patentee before: LG Electronic (Tianjin) Electrical Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20121030 |