CN112243482A

CN112243482A - Refrigerator with a door

Info

Publication number: CN112243482A
Application number: CN201980028196.6A
Authority: CN
Inventors: 冢原纮也; 铃木悠太
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Priority date: 2018-12-13
Filing date: 2019-12-05
Publication date: 2021-01-19
Also published as: WO2020119575A1; EP3896370A4; EP3896370A1; JP2020094753A

Abstract

The invention provides a refrigerator, which comprises a freezing chamber (1205); a refrigerating chamber (1203) provided above the freezing chamber (1205); and a fan (305) provided on the evaporator (303) on the back side of the freezing chamber, and configured to cause at least cold air to flow into the freezing chamber (1205) from the air outlet through a plurality of air ducts (315), wherein a middle partition (307) between the freezing chamber (1205) and the refrigerating chamber (1203) bends the inside of the freezing chamber upward on the back side of the freezing chamber to create a space for the freezing chamber, and at least a part of the fan (305) is provided in the space (309).

Description

Refrigerator with a door

Technical Field

The present invention relates to a refrigerator having a freezing chamber and a refrigerating chamber.

Background

In recent years, the following methods have been used: vegetables are cut and stored in a freezing chamber, and are taken out for use during cooking. Therefore, there is a demand for increasing the capacity of the freezing chamber by reducing the capacity of the vegetable chamber.

Patent document 1 describes the following technique: a fan cover is added to a fan for sending cold air to a freezing chamber and a refrigerating chamber, thereby achieving power saving. The fan cover is closed during defrosting with the heater so that warm air does not flow in the refrigerator.

(prior art documents)

(patent document)

Patent document 1: patent No. 6254404

The fan and the fan shielding device provided with the fan cover are arranged on the back surface of the freezing chamber. Therefore, the size of the fan shielding device presses the volume of the freezing chamber. Further, an evaporator as a cooler and a heater for defrosting are provided on the back surface of the freezing chamber. If the freezing chamber is to be installed at the lowest part of the refrigerator, the machine chamber in which the compressor is installed at the lower part of the refrigerator presses the installation place of the evaporator and the heater, so that the volume of the freezing chamber becomes smaller.

In view of the above, there is a need for an improved refrigerator to solve the above problems.

Disclosure of Invention

An object of the present invention is to provide a refrigerator in which a capacity of a freezing chamber is increased in a refrigerator provided with a fan shielding device.

Another object of the present invention is to provide a refrigerator that can save power by providing a fan shielding apparatus. In addition, the refrigerator of the present invention may have long evaporator set in the back of the freezing chamber to raise the cooling efficiency.

To achieve the above object, the present invention provides a refrigerator, comprising: a freezing chamber; a refrigerating chamber disposed above the freezing chamber; and a fan provided on the evaporator on a back surface side of the freezing chamber, for flowing at least cold air into the freezing chamber from an air outlet through a plurality of air ducts, wherein a middle partition plate between the freezing chamber and the refrigerating chamber bends an inner side of the freezing chamber upward on the back surface side of the freezing chamber to create a space for the freezing chamber, and at least a part of the fan is provided in the space.

Thus, the refrigerator of the invention is provided with the fan in the space, and the volume of the freezing chamber can be increased. In addition, the invention can provide the refrigerator which can save electric power by arranging the fan shielding device. Furthermore, the refrigerator of the invention can set the installation place of the evaporator which is ejected out of the back of the freezing chamber of the mechanical chamber to be vertical, thereby improving the cooling efficiency and increasing the volume of the freezing chamber.

As a further improvement of the present invention, the air outlet of the freezing chamber is disposed in a position parallel to the fan. Thus, the cold air can be supplied to the freezing chamber with strong wind.

As a further improvement of the present invention, a fan cover and a fan shielding device are provided coaxially with a central axis of the fan, the fan cover is in a cover shape having an internal thread, the fan is attached to the fan shielding device, the fan cover is opened and closed by rotation of a shaft portion, the shaft portion is provided above the fan, is coaxial with the central axis of the fan, and is engaged with the internal thread, and a cooling space cooled by the evaporator and a space of the multi-duct are communicated by opening of the fan cover and are partitioned by closing of the fan cover.

Thus, the fan cover can be opened and closed by a simple mechanism. The invention can separate the cooling space from the multi-air-channel space by additionally arranging the fan shielding device.

As a further improvement of the present invention, the heater is disposed below the evaporator, and during defrosting, the fan cover is closed to block the cooling space and the space of the multi-duct, and the heater is driven to melt the frost.

Thus, the refrigerator according to the present invention can shield the fan during defrosting by turning on the heater. By shielding the fan, the situation that the temperature is increased due to the flowing of the warm air in the refrigerator is avoided. Therefore, the present invention can achieve power saving.

As a further improvement of the present invention, a vegetable compartment is provided below the refrigerating compartment and directly above the intermediate partition. This reduces the volume of the vegetable compartment and increases the volume of the freezer compartment.

The invention has the beneficial effects that: the invention can increase the volume of the freezing chamber in the refrigerator with the fan shielding device. In addition, the invention can provide the refrigerator which can save electric power by arranging the fan shielding device. Further, the present invention provides a refrigerator having a high cooling efficiency and an increased capacity of a freezing chamber by providing a long evaporator on a rear surface of the freezing chamber.

Drawings

Fig. 1 is a schematic view of a refrigerator according to the present invention.

Fig. 2 is a front view of the refrigerator with the door opened according to the present invention.

Fig. 3 is a sectional view of the refrigerator shown in fig. 2 taken along line a-a.

Fig. 4 is a schematic view of a fan and a fan cover which are a part of the fan shielding apparatus of the refrigerator according to the present invention.

Fig. 5 is a front view of a fan shielding apparatus of a refrigerator according to the present invention.

DESCRIPTION OF SYMBOLS IN THE DRAWINGS

101 refrigerator

103 refrigerator main body

105 door body

107 door body

1201 refrigerator main body

1203 refrigeration compartment

1205 freezing chamber

1207 refrigerating chamber for storing refrigerated foods

1209 vegetable room

211 air outlet

213 air outlet

215 air outlet

217 air outlet

219 air outlet

221 air return inlet

223 air return inlet

225 air return inlet

227 air outlet

229 air outlet

231 air outlet

301 mechanical room

303 evaporator

305 Fan

307 middle partition board

309 space

311 heater

313 air door

315 multiple air ducts

317 multiple air ducts

319 air outlet

321 air outlet

323 air outlet

325 return air inlet

329 air outlet

331 air outlet

401 part of fan shield

403 fan

405 fan cover

407 internal thread

409 shaft part

411 bearing pin

501 fan shielding device

503 position

505 air outlet

507 air outlet

509 air outlet

511 air outlet

513 air outlet

515 air return inlet

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

(As to the integral constitution of the refrigerator)

Fig. 1 is a schematic view of a refrigerator in a preferred embodiment of the present invention, and the overall structure of the refrigerator of the present invention will be described with reference to fig. 1.

As shown in fig. 1, a refrigerator 101 of the present invention includes a refrigerator main body 103 capable of storing foods and the like in the inside thereof. The refrigerator main body 103 includes

door bodies

105 and 107 for opening and closing a front opening thereof. The door 105 opens and closes the refrigerating chamber, and the door 107 opens and closes the freezing chamber 1205.

(inner structure of refrigerator)

Fig. 2 is a front view of the refrigerator 101 according to the present invention after the door is opened, and the door is not shown here. Fig. 3 is a sectional view of the refrigerator 101 of the present invention taken along line a-a of fig. 2. The internal structure of the refrigerator 101 is explained with reference to fig. 2 and 3.

As shown in fig. 2, the refrigerator main body 1201 has: a refrigerating chamber 1203 into which cold air for refrigeration is fed, and having a refrigerating chamber 1207 for storing refrigerated foods and a vegetable chamber 1209; and a freezing chamber 1205 into which cold air for freezing is fed. In the refrigerator main body 1201, a freezing chamber 1205 is provided at the lowermost portion, a vegetable chamber 1209 is provided above the freezing chamber 1205, and a refrigerating chamber 1207 for storing refrigerated foods is provided above the vegetable chamber 1209.

As shown in fig. 3, a machine chamber 301 is provided on the rear surface of the freezing chamber 1205, and the machine chamber 301 is provided with a compressor at the lower portion. A heater 311 is provided above the machine compartment 301 at the back of the freezing compartment. An evaporator 303 as a cooler is provided above the heater 311 on the back of the freezing chamber.

In order to lower the center of gravity of the refrigerator 101 to stabilize the arrangement of the refrigerator 101, the machine chamber 301 is placed at a lower portion of the refrigerator 101. However, this portion may press the volume of the storage compartment of the refrigerator 101. In the present embodiment, the freezing chamber 1205 is provided at the lowermost portion of the refrigerator 101, and therefore the machine chamber 301 presses the volume of the freezing chamber 1205.

The evaporator 303 generates cold air for cooling the freezing chamber 1205 and the refrigerating chamber 1203. In order to maintain the cooling capacity of the refrigerator 101 of the present invention, the evaporator 303 projected from the back surface side of the freezing chamber of the machine chamber 301 is vertically long. The elongated evaporator 303 can have a long cooling area and thus a high cooling efficiency.

The heater 311 is provided below the evaporator 303 to remove frost adhering to the evaporator 303. The heater 311 is automatically activated to warm air and dissolve frost when a certain period of time elapses. The melted frost is discharged as water from the lower portion of the heater 311.

A fan 305 is provided above the evaporator 303 at the back of the freezing chamber. The fan 305 is capable of flowing at least cold air into the freezing chamber 1205. After passing through fan 305, the cold air flows from

air outlets

319 and 213 in fig. 2, air outlets 321 in fig. 2 and 217, and air outlet 323 in fig. 2 and 219 to freezing chamber 1205 through multi-duct 315.

The cold air circulated in the freezing chamber 1205 is sucked from the air return opening 325 corresponding to the air return opening 221 in fig. 2, and is cooled again in the evaporator 303.

Cold air flows into refrigerating compartment 1203 through damper 313, and damper 313 switches the flow of cold air into refrigerating compartment 1203. The cold air passes through the damper 313, enters the multi-duct 317, and flows into the refrigerating compartment 1203 from the air outlet 227 in fig. 2, the air outlet 329 corresponding to the air outlet 229 in fig. 2, and the air outlet 331 corresponding to the air outlet 231 in fig. 2.

The cold air circulated in the refrigerating chamber 1203 is sucked from the

air return openings

223 and 225, passes through the return air duct, returns to the lower side of the evaporator 303, and is cooled again in the evaporator 303.

The freezing chamber 1205 is separated from the refrigerating chamber 1203 by a middle partition 307. The intermediate partition 307 bends the inside of the freezing chamber 1205 upward at the back side of the freezing chamber 1205 to create a space 309 for the freezing chamber 1205. At least a portion of the fan 305 is disposed in the space 309.

Although the intermediate partition 307 may be bent upward on the back surface side of the freezing chamber 1205 to form the space 309 as in the present embodiment, a part of the intermediate partition 307 may be removed to form the space 309.

By providing fan 305 in space 309, the space on the back side of freezing chamber 1205 can be effectively used. Therefore, the volume of the freezing chamber 1205 can be made large.

The vegetable chamber 1209 is provided at a lower portion of the refrigerating chamber 1203 and directly above the intermediate partition 307. The space 309 may be a part of the vegetable compartment 1209, and may also be a part of the freezer compartment 1205 that is an unnecessary part of the vegetable compartment 1209. In addition, a part of the dead space (dead space) of the multi duct 315 can be set as a part of the freezing chamber 1205.

Thus, the refrigerator of the present invention can increase the capacity of the freezing chamber 1205 without occupying the capacity of the freezing chamber 1205 with the fan 305. In addition, the present invention can reduce the volume of the vegetable compartment 1209 and increase the volume of the freezing compartment 1205. Thereby decreasing the volume of the multi-duct 315 and increasing the volume of the freezing chamber 1205.

In the refrigerator of the present invention, the installation position of the evaporator 303 projected from the rear surface of the freezing chamber of the machine chamber 301 can be set to the upper direction. Therefore, the evaporator 303 can be made long, the cooling efficiency can be improved, and the capacity of the back surface of the freezing chamber can be increased.

(description of the Fan Shielding device)

FIG. 4 is a schematic view of a fan and a fan cover, which are part of the fan shielding device of the present invention. Fig. 5 is a front view of the fan shield apparatus of the present invention. A fan shielding device including a fan and a fan cover will be described with reference to fig. 4 and 5.

Fig. 4 shows a part 401 of a fan screening arrangement comprising a fan 403 and a fan housing 405. A fan cover 405 and a fan shielding device are attached coaxially with the center axis of the fan 403 shown by the dotted line in fig. 4, the fan cover 405 is in the form of a cover having an internal thread 407, and the fan 403 is attached to the fan shielding device.

The fan cover 405 moves up and down by the rotation of the shaft 409, and the shaft 409 is positioned above the fan 403, is coaxial with the center axis of the fan 403, and engages with the screw 407. The support pin 411 penetrates the fan cover 405 to guide the fan cover 405 so that the fan cover 405 moves in parallel.

When the fan cover 405 is opened in the upward operation, the cooling space cooled by the evaporator 303 communicates with the space of the multi-duct 315, and the air flows in the direction of the arrow. The fan cover 405 is closed when it is moved downward, and the cooling space cooled by the evaporator 303 is partitioned from the multi-duct 315.

Therefore, the fan cover 405 can shield the fan 403 during the defrosting period in which the heater 311 of the evaporator 303 is turned on. During defrosting, the heater 311 is driven to dissolve frost. Meanwhile, the fan cover 405 is closed to shield the fan 403, so that the cooling space is separated from the space of the multi-air channel 315, and the situation that the temperature is increased due to the flowing of warm air in the refrigerator is avoided. Therefore, the invention can realize the effect of saving electric power.

Fig. 5 is a front view of the fan shield 501. The fan shielding device 501 includes a fan 403 and a fan cover 405 corresponding to the fan 305 in fig. 3, a multi-wind channel 315 in fig. 3, and a

wind outlet

505 and 507 corresponding to the

wind outlets

211 and 213 in fig. 2 and the wind outlet 319 in fig. 3,

wind outlets

509 and 511 corresponding to the

wind outlets

215 and 217 in fig. 2 and the wind outlet 321 in fig. 3, a wind outlet 513 corresponding to the wind outlet 219 in fig. 2 and the wind outlet 323 in fig. 3, and a wind return 515 corresponding to the wind return 221 in fig. 2 and the wind return 325 in fig. 3.

As shown in fig. 3, the space 309 is provided with a portion further up than the line B-B of the fan guard 501. In addition, a portion 401 of the fan screen is disposed behind a location 503 of the fan screen 501. In this way, a part of the fan shielding device 501 including the fan 403 and the fan cover 405 is disposed in the space 309.

Here, it is important that the outlet 505 and the outlet 507 are provided in parallel with the position 503 where the fan 403 is provided. Cold air needs to be sent out from the vicinity of the ceiling of the freezing chamber 1205. In the prior art, an air outlet is arranged above a fan.

However, in the present invention, the fan 403 can be provided at the upper portion of the freezing chamber 1205, and thus the outlet 505 for blowing air can be placed in parallel with the position 503 where the fan 403 is provided. Thus, cold air can be supplied to the freezing chamber 1205 with a strong air volume, and power saving can be achieved.

By the present invention, the volume of the freezing chamber 1205 can be increased in the refrigerator provided with the fan shield device. In addition, the invention can provide the refrigerator which can save power by arranging the fan shielding device. Further, the present invention provides a refrigerator having high cooling efficiency and an increased volume of the freezing chamber 1205 by providing the long evaporator 303 on the rear surface of the freezing chamber.

(Industrial Applicability)

The present invention can be applied to a refrigerator in which a fan is provided on the back surface of a freezing chamber. In addition, the present invention can be applied to a refrigerator provided with a fan shield device for saving power.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

A refrigerator, which includes a freezing chamber and a refrigerating chamber provided above the freezing chamber, characterized in that the refrigerator further has:

a fan provided on the evaporator on the back side of the freezing chamber to flow at least cold air from the air outlet into the freezing chamber through a plurality of air ducts,

a middle barrier between the freezing chamber and the refrigerating chamber bends an inner side of the freezing chamber upward at a back surface side of the freezing chamber to create a space for the freezing chamber,

at least a portion of the fan is disposed in the space.
The refrigerator according to claim 1, wherein: and the air outlet of the freezing chamber is arranged in a position parallel to the fan.
The refrigerator according to claim 1 or 2, characterized in that: a fan cover and a fan shielding device are arranged coaxially with the central shaft of the fan, the fan cover is in a cover shape with internal threads, the fan is mounted on the fan shielding device, the fan cover is opened and closed through rotation of a shaft part, the shaft part is arranged on the fan, is coaxial with the central shaft of the fan and is clamped with the internal threads, and a cooling space cooled by the evaporator is communicated with a space of the multi-air-passage through opening of the fan cover and is separated through closing of the fan cover.
The refrigerator according to claim 3, wherein: the heater is arranged below the evaporator, during defrosting, the fan cover is closed to separate the cooling space and the multi-air-channel space, and the heater is driven to melt frost.
The refrigerator of claim 4, wherein: and a vegetable chamber is arranged at the lower part of the refrigerating chamber and above the middle partition plate.