CN101382372A - Electrical refrigerator - Google Patents
Electrical refrigerator Download PDFInfo
- Publication number
- CN101382372A CN101382372A CNA2008101308584A CN200810130858A CN101382372A CN 101382372 A CN101382372 A CN 101382372A CN A2008101308584 A CNA2008101308584 A CN A2008101308584A CN 200810130858 A CN200810130858 A CN 200810130858A CN 101382372 A CN101382372 A CN 101382372A
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- refrigerator
- fan
- pressure fan
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Abstract
The invention provides a refrigerator improving driving reliability of blower. The refrigerator of the invention comprises a refrigerating chamber provided at the upper part of the refrigerator body, a freezing chamber provided at the lower part of the refrigerator body, a blower conveying cooling air to the refrigerator, a cooling air duct located at the upper part of the freezing chamber and provided with the blower, an air door located at the upper part of the blower for adjusting the supplying of the cooling air conveyed by the blower to the refrigerator, a baffle for rotatably providing the air door in the cooling air duct and controlling the cooling air passing in the cooling air duct; the blower comprises a fan and a fan cover provided around the fan and the blower is provided having tilt from upper part if the fan cover to the left and right directions viewing from the face of the refrigerator body; the cooling air duct has a tilt part at the upper part of the fan; the baffle rotates until the end of the baffle locating at the upper part of the tilt part.
Description
Technical field
The present invention relates to refrigerator.
Background technology
All the time, the pressure fan of refrigerator adopts axial-flow type for small-sized, economize on electricity.The technology that the record of patent documentation 1-TOHKEMY 2002-130188 communique is arranged as existing structure.Fig. 4 is the cutaway view of major part that possesses the refrigerator of existing pressure fan and cooling device.Fig. 5 is the perspective elevation of major part that possesses the refrigerator of existing pressure fan and cooling device.Fig. 6 is the front view of the employed pressure fan of existing refrigerator.
In Fig. 4, the 1st, the refrigerator main body, the 2nd, refrigerating chamber, a side disposes heat exchanger 3 at the back side of refrigerating chamber 2.In addition, the refrigerator internal channel 4 in the air channel that is formed for circulating cold air is installed, pressure fan 5 is installed on refrigerator internal channel 4 in the mode of cover heating interchanger 3.
In Fig. 5, pressure fan 5 is made of aerofoil fan 6 and fan guard 7.Aerofoil fan 6 is installed in the motor support portion 8 that is positioned at fan guard 7 central parts.Bight at the diagonal angle of fan guard 7 is provided with osculum 9.Pressure fan 5 tilts in the mode that osculum 9 is in downside, and is installed in the refrigerator internal channel 4.
This structure is to be provided with the pressure fan 5 of refrigerator special use and the refrigerator of heat exchanger 3.Pressure fan 5 is near heat exchanger 3 configurations.Like this, pressure fan 5 can be used the cold air cooling that is produced by heat exchanger 3.In addition, outside refrigerator, flow into the high air of humidity.Like this, near air dewfall fan guard 7 that humidity is high, water droplet is just attached on the pressure fan 5.Become the structure that this water droplet flows down from the osculum 9 of the pressure fan 5 that is obliquely installed downwards.
For the result of the actual conditions investigation of the use of in recent years refrigerator as can be known, be refrigerating chamber, refrigerating chamber, vegetable compartment by the high order of frequency of utilization.If as can be known according to this user mode, on the top of refrigerator main body refrigerating chamber is set, in the bottom vegetable compartment is set, between refrigerating chamber and vegetable compartment, dispose refrigerating chamber, more than configuration is suitable from the convenience aspect of frequency of utilization and use.
But, as prior art, having disposed the occasion of refrigerating chamber at the central part of refrigerator main body, heat exchanger and pressure fan are configured in the set cool-air duct in freezing rear.Air door is configured in the top of the pressure fan in the above-mentioned cool-air duct.This moment, air door was positioned at the boundary position of refrigerating chamber (about 5 ℃) and refrigerating chamber (-18 ℃ approximately).Like this, the air dewfall high owing to humidity also further is cooled, so be easy to frosting on air door.The occasion of frosting on air door is dissolved attached to the frost on the air door with heater etc.But, because air door is positioned at the top of pressure fan, so when dissolving attached to white on the air door with heater etc., this water droplet just flows in the pressure fan.And then, this droplets freeze appears and the situation of the what is called lock that pressure fan is failure to actuate.Fixed
Summary of the invention
The present invention is exactly the technical scheme that solves above-mentioned problem, the refrigerator that the object of the present invention is to provide a kind of reliability that makes the driving of pressure fan to improve.
In order to solve above-mentioned problem, refrigerator of the present invention possesses: the refrigerating chamber that is arranged on the top of refrigerator main body, be arranged on the refrigerating chamber of the below of this refrigerating chamber, in refrigerator, carry the pressure fan of cold air, be positioned at the rear of above-mentioned refrigerating chamber and dispose the cool-air duct of above-mentioned pressure fan, be arranged on the top of above-mentioned pressure fan and adjust, can be rotatably set in above-mentioned air door in the above-mentioned cool-air duct and control the baffle plate that passes through of the cold air in the above-mentioned cool-air duct with the cold air of above-mentioned pressure fan conveying air door to the supply in the refrigerator; It is characterized in that above-mentioned pressure fan possesses fan and is arranged on fan guard around this fan, and be arranged to above this fan guard of top view of refrigerator main body to the left and right that direction has inclination; Above-mentioned cool-air duct has rake above said fans, above-mentioned baffle plate rotation is positioned at the top of above-mentioned rake up to the end of this baffle plate.
Additional features is that above-mentioned baffle plate rotation drives the angle of transmitting to above-mentioned rake up to attached to the liquid on this baffle plate.
Additional features is, have be configured in above-mentioned air door around and dissolve defrost mechanism attached to the frost on this air door.
Additional features is, have the below and the heat exchanger of the interior air of cooling refrigerator and below and the defrosting heater to defrosting attached to the frost on the above-mentioned heat exchanger that is configured in this heat exchanger that are configured in above-mentioned pressure fan, above-mentioned defrost mechanism carries out work when the heater action of above-mentioned defrosting.
According to the present invention, can provide the refrigerator of the driving reliability raising that makes pressure fan.
Description of drawings
Fig. 1 is the cutaway view of major part of the refrigerator of embodiments of the present invention.
Fig. 2 is the front view that is provided with of the pressure fan of this embodiment and air door.
Fig. 3 is the cutaway view that is provided with of the pressure fan of this embodiment and air door.
Fig. 4 is the cutaway view of major part that possesses the refrigerator of existing pressure fan.
Fig. 5 is the perspective elevation of major part that possesses the refrigerator of existing pressure fan.
Fig. 6 is the front view of the employed pressure fan of existing refrigerator.
Among the figure:
1-refrigerator main body, 2-refrigerating chamber, 3-heat exchanger, 4-refrigerator internal channel, 5-pressure fan, 6-aerofoil fan, 7-fan guard, 8-motor support portion, 9-osculum, 10-refrigerating chamber, 11-air door, 12-baffle plate, 13-pressure fan support portion, 14-refrigerating chamber air channel, 15-refrigerating chamber air channel, 16-fan guard water droplet guide portion, 17-Defrost heater, 18-chute, 19-heater, 20-vegetable compartment, 21-rake.
The specific embodiment
Below, with reference to Fig. 1～Fig. 3 the embodiment of refrigerator of the present invention is described.Fig. 1 is the cutaway view of major part of the refrigerator of embodiments of the present invention.Fig. 2 is the front view that is provided with of the pressure fan of this embodiment and air door.Fig. 3 is the cutaway view that is provided with of the pressure fan of this embodiment and air door.
As shown in Figure 1, the 1st, the refrigerator main body, 2 are arranged on the refrigerating chamber on the top of refrigerator main body 1, and 20 are arranged on the vegetable compartment of the bottom of refrigerator main body 1, and 10 are arranged on the refrigerating chamber between refrigerating chamber 2 and the vegetable compartment 20.The heat exchanger 3 of cold air in the back side of refrigerating chamber 10 side disposes the cooling refrigerator.Around heat exchanger 3, have the cool- air duct 14,15 that is used for circulating cold air, in the cool-air duct 15 of refrigerating chamber one side, pressure fan 5 is installed.
As Fig. 2, shown in Figure 3, pressure fan 5 is made of aerofoil fan 6 and fan guard 7.Aerofoil fan 6 is installed in the motor support portion 8 of the central part that is positioned at fan guard 7.Be provided with the air door 11 of the air output of the cold air of control in refrigerator on the top of pressure fan 5.Around air door 11, dispose and be used to dissolve and remove heater 19 attached to the frost on the air door 11.Pressure fan 5 is mounted obliquely within on the pressure fan support portion 13.Specifically, be arranged to from the top view of refrigerator main body 1, the top direction to the left and right of fan guard 7 tilts.Here, pressure fan support portion 13 forms cool-air duct 14,15.Air door 11 has the baffle plate 12 that drives in the above-below direction rotation in cool-air duct 14,15.Baffle plate 12 is arranged between cool-air duct 15 and the cool-air duct 14 and in the above-below direction rotation and drives.Baffle plate 12 has end rotation and is fixed on stiff end on the antetheca of cool- air duct 14,15 freely.Baffle plate 12 is arranged to extend to the rear wall direction of cool- air duct 14,15 from the said fixing end, and the other end is a free end.Driving baffle plate 12 by rotation can control from the cold air supply of cool-air duct 15 to cool-air duct 14.By controlling this cold air supply, can control the temperature of storeroom.That is, make when wanting to reduce the temperature of storeroom, make the open angle of baffle plate 12 become big, allow more cold air enter in the storeroom.On the other hand, in the temperature of storeroom as the temperature band of having predesignated and suitable occasion, then reduce baffle plate 12 open angle so that cold air less enter in the storeroom.The switching of the baffle plate 12 of air door 11 constitutes along the cool-air duct 15 of refrigerating chamber one side.Specifically, on the pressure fan support portion 13 of cool- air duct 14,15, be provided with pressure fan 5, be provided with rake 21 above it.From the top view of refrigerator main body 1, rake 21 is along with towards the top of pressure fan 5 and tilt in the mode that rearward retreats.Baffle plate 12 is opened near the mode of this rake 21 with the free end of baffle plate 12.In other words, baffle plate 12 the free-ended leading section as baffle plate 12 be positioned at rake 21 above scope open and close.Like this, owing to flow on the fan guard 7 along rake 21, directly drop onto on the aerofoil fan 6 so can prevent water droplet from the water droplet of baffle plate 12.Thereby can prevent that aerofoil fan 6 from freezing.
The fan guard 7 of pressure fan 5 is mounted to the end face of fan guard 7 and stretches from pressure fan support portion 13.
Secondly, above-mentioned such refrigerator that constitutes is illustrated its action.In the present embodiment, the central part in refrigerator main body 1 disposes refrigerating chamber 10.This occasion, heat exchanger 3 and pressure fan 5 are configured in the set cool- air duct 14,15 in the rear of refrigerating chamber 10.Air door 11 is configured in the top of pressure fan set in the cool-air duct 15 5.Here, air door 11 is positioned at the boundary position of refrigerating chamber 2 (about 5 ℃) and refrigerating chamber 10 (-18 ℃ approximately).Therefore, because the temperature difference of refrigerating chamber 2 and refrigerating chamber 10, steam reaches dew point and becomes water droplet, and then this water droplet is cooled and is easy to frosting.Therefore, be provided with heater 19 in order to melt attached to the frost on the baffle plate 12 of air door 11.Yet if baffle plate 12 is opened fully when melting frost, the water droplet that has dissolved might flow directly on the aerofoil fan 6 of the pressure fan 5 that is positioned at air door 11 bottoms.Like this, the fault of pressure fan 5 just might appear or remain in aerofoil fan 6 and fan guard 7 between water droplet be cooled and freeze the so-called lock-out state that aerofoil fan 6 is failure to actuate.
So in the present embodiment, the baffle plate 12 of air door 11 constitutes and with heater 19 frost is being dissolved back control open angle.Give one example, baffle plate 12 rotates downwards from the stiff end of cool- air duct 14,15 and drives and open, and the open angle of baffle plate 12 is 30 degree.Like this, flow on the face of the cool-air duct 15 of refrigerating chamber one side that becomes one with pressure fan support portion 13 attached to the defrost water of the frost on the baffle plate 12.The outer peripheral face of the fan guard 7 by pressure fan 5 just can accumulate the evaporating pan (not shown) of refrigerator main body 1 via tank 18 from heat exchanger 3 then.
Also have, it is moving along the surface current of the cool-air duct 15 of refrigerating chamber one side that the open angle of the baffle plate 12 of air door 11 needs only lysed water, preferably is controlled to be roughly below 60 degree.
In addition, in the white occasion of the baffle plate 12 that dissolves air door 11 heater 19 is switched on.Here, as if the energising of carrying out heater 19 always, the electric power amount then can increase consumption.Therefore, in this enforcement side, the energising of the heater 19 of air door 11 is carried out to Defrost heater 17 energisings of the frost that is used to dissolve heater 3 time.At this moment, the baffle plate 12 of air door 11 is closed in advance.Like this, if Defrost heater 17 is switched on, then the temperature of the cool-air duct 15 of refrigerating chamber one side rises.Therefore, can reduce electric power amount to the energising of air door heater 19.
In addition, according to present embodiment, owing to be that water can not fallen the structure on the pressure fan 5, so can remove the heater of the peripheral part of necessary pressure fan 5 in the prior art.Also having, is further to improve reliability, also can play the effect same with the present invention even be provided with the structure of heater of the peripheral part of pressure fan 5.
Claims (4)
1. refrigerator, possess: the refrigerating chamber that is arranged on the top of refrigerator main body, be arranged on the refrigerating chamber of the below of this refrigerating chamber, in refrigerator, carry the pressure fan of cold air, be positioned at the rear of above-mentioned refrigerating chamber and dispose the cool-air duct of above-mentioned pressure fan, be arranged on the top of above-mentioned pressure fan and adjust, can be rotatably set in above-mentioned air door in the above-mentioned cool-air duct and control the baffle plate that passes through of the cold air in the above-mentioned cool-air duct with the cold air of above-mentioned pressure fan conveying air door to the supply in the refrigerator; It is characterized in that,
Above-mentioned pressure fan possesses fan and is arranged on fan guard around this fan, and is arranged to above this fan guard of top view of refrigerator main body to the left and right that direction has inclination;
Above-mentioned cool-air duct has rake above said fans, above-mentioned baffle plate rotation is positioned at the top of above-mentioned rake up to the end of this baffle plate.
2. refrigerator according to claim 1 is characterized in that,
Above-mentioned baffle plate rotation drives the angle of transmitting to above-mentioned rake up to attached to the liquid on this baffle plate.
3. refrigerator according to claim 2 is characterized in that,
Have be configured in above-mentioned air door around and dissolve defrost mechanism attached to the frost on this air door.
4. refrigerator according to claim 3 is characterized in that,
Have the below and the heat exchanger of the interior air of cooling refrigerator and below and the defrosting heater that is configured in this heat exchanger that are configured in above-mentioned pressure fan to defrosting attached to the frost on the above-mentioned heat exchanger,
Above-mentioned defrost mechanism carries out work when the heater action of above-mentioned defrosting.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-232151 | 2007-09-07 | ||
| JP2007232151A JP4564994B2 (en) | 2007-09-07 | 2007-09-07 | refrigerator |
| JP2007232151 | 2007-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101382372A true CN101382372A (en) | 2009-03-11 |
| CN101382372B CN101382372B (en) | 2012-06-27 |
Family
ID=40462340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101308584A Active CN101382372B (en) | 2007-09-07 | 2008-08-19 | Electrical refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4564994B2 (en) |
| CN (1) | CN101382372B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2009063244A (en) | 2009-03-26 |
| JP4564994B2 (en) | 2010-10-20 |
| CN101382372B (en) | 2012-06-27 |
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Address after: Tokyo, Japan, Japan Patentee after: Hitachi Global Living Program Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Household Electric Appliance Co. |