CN100380074C - Air blowing device for refrigerator - Google Patents
Air blowing device for refrigerator Download PDFInfo
- Publication number
- CN100380074C CN100380074C CNB2003101068658A CN200310106865A CN100380074C CN 100380074 C CN100380074 C CN 100380074C CN B2003101068658 A CNB2003101068658 A CN B2003101068658A CN 200310106865 A CN200310106865 A CN 200310106865A CN 100380074 C CN100380074 C CN 100380074C
- Authority
- CN
- China
- Prior art keywords
- air
- supporting leg
- motor
- guard shield
- 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.)
- Expired - Fee Related
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 30
- 238000005452 bending Methods 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 abstract 2
- 239000003570 air Substances 0.000 description 28
- 230000000694 effects Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
Classifications
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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
- 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 present invention relates to an air blowing device for a refrigerator. The present invention is characterized in that the present invention comprises a protecting cover, a blowing fan, a motor, a motor supporting frame and a supporting leg, wherein a hole which guides air to flow is formed at the center of the protecting cover; the blowing fan is positioned at the inner side of the hole of the protecting cover, and can deliver the air; the motor is used for driving the blowing fan; the motor supporting frame is used for fixing motor; the supporting leg can separate the motor supporting frame and the protecting cover, and the outer surface of the supporting leg is flat. The air blowing device of the present invention has the advantages that sucked air can not be blocked or retained at the outer surface of the supporting leg, the present invention can eliminate noise and the air flow loss which are generated because the sucked air is blocked or retained at the outer surface of the supporting leg, and further, the present invention can drop the noise of the air blowing device and the flow loss at the lowest.
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 above-mentioned this side of refrigerating chamber B 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 tops 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 rotations; Motor bracing frame 18, it is used for installing motor 16; Several supporting legs 20, they are and integrally formed with above-mentioned guard shield 12 and motor bracing frame 18 between the peripheral part and motor bracing frame 18 in the hole of guard shield 12, and they can be separated the hole 12h of motor bracing frame 18 with 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 of the hole 12h of above-mentioned guard shield 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 rotations, the cold air that flows through above-mentioned evaporimeter 5 so will be subjected to the guiding of above-mentioned bellmouth 12a, discharges upward by the hole 12h of guard shield 12, thereby circulates 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 rib shape projection (rib) 20a, the 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 of the hole of guard shield 12 12h so, thereby produces air-supply power.
At this moment, the air of guard shield 12 belows can be inhaled into by the circumferencial direction below the blowing fan 14 under the effect of air-supply power, flows through guard shield 12 then, discharges to the circumferencial direction of guard shield 12 tops.
But, there is following problem in the air-supply arrangement of the refrigerator of prior art: when blowing fan 14 rotations, the air that is attracted to the annular hole, below of blowing fan 14 is understood in the slit t between some the rib shape that flows into above-mentioned supporting leg 20 projection 20a, 20b, thereby produces noise.Moreover, the rib shape of above-mentioned supporting leg 20 projection 20a, 20b 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 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; It is characterized in that the outer surface of described supporting leg is smooth, the both sides of described supporting leg have formed the rib shape projection of inside bending, have formed open pore at the position, boundary of described supporting leg and described motor bracing frame.
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: hold 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 with 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.
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 rotations, 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 air that is inhaled into from the outside of supporting leg 90 by the rotation of blowing fan 60 will be guided after bumping against the flat outer surface 92 of supporting leg 90, 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 belows 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 and since the outer surface of supporting leg 90 be not depression but smooth, the air that therefore 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 1dBA 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 has formed several supporting legs and several between guard shield and the motor support frame The outer surface of supporting 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 to thereby can eliminate because of the outer surface of air amount at supporting leg 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 supporting leg form, thereby have energy Enough increase the advantage of the intensity of supporting leg or motor support frame.
In addition, owing to formed open pore at the position, boundary of above-mentioned supporting leg and said motor bracing frame, Therefore have the following advantages, namely above-mentioned guard shield and supporting leg and motor support frame can be utilized a whole set of Mould is integrally formed.
Claims (1)
1. the air-supply arrangement of a refrigerator 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; It is characterized in that the outer surface of described supporting leg is smooth, the both sides of described supporting leg have formed the rib shape projection of inside bending, have 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 CN1611883A (en) | 2005-05-04 |
| CN100380074C true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061275A (en) * | 1990-09-28 | 1992-05-20 | 三星电子株式会社 | The cool-air supplier of refrigerator |
| JP2001159399A (en) * | 1999-12-03 | 2001-06-12 | Matsushita Refrig Co Ltd | Axial blower |
| CN1403774A (en) * | 2001-08-31 | 2003-03-19 | Lg电子株式会社 | Cooling air supply device for refrigerator |
| CN1502962A (en) * | 2002-11-25 | 2004-06-09 | Lg电子株式会社 | Cooled air circulation blower for refrigerator |
-
2003
- 2003-10-30 CN CNB2003101068658A patent/CN100380074C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061275A (en) * | 1990-09-28 | 1992-05-20 | 三星电子株式会社 | The cool-air supplier of refrigerator |
| JP2001159399A (en) * | 1999-12-03 | 2001-06-12 | Matsushita Refrig Co Ltd | Axial blower |
| CN1403774A (en) * | 2001-08-31 | 2003-03-19 | Lg电子株式会社 | Cooling air supply device for refrigerator |
| CN1502962A (en) * | 2002-11-25 | 2004-06-09 | Lg电子株式会社 | Cooled air circulation blower for refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1611883A (en) | 2005-05-04 |
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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 |