CN211601270U - A kind of refrigerator - Google Patents

Abstract

The utility model discloses a refrigerator, the box of refrigerator is separated for being located the top and controlling the freezer and the walk-in of laying to and be located the temperature-changing room of below, the back of freezer sets up the evaporimeter storehouse, and the main circulation wind channel chamber in evaporimeter storehouse the place ahead, its characterized in that: the main circulation air channel cavity is provided with a centrifugal fan, one side of the top of the main circulation air channel cavity is provided with an air channel sinking cavity, the side wall of the air channel sinking cavity is provided with an air port for supplying air to the refrigerating chamber, the main circulation air channel cavity further comprises a freezing chamber air channel and a temperature-variable chamber air channel, and the sectional area of the temperature-variable chamber air channel is larger than that of the freezing chamber air channel. The utility model discloses an evaporimeter, a centrifugal fan of three room sharing of refrigerator realize the temperature control in the interval, through reasonable wind channel design, reduce product material cost, improve the effective volume of refrigerator, reduce whole quick-witted noise.

Description

A kind of refrigerator

Technical Field

The utility model relates to a refrigerator technical field, concretely relates to big volume forced air cooling refrigerator with temperature-changing chamber.

Background

A typical large-capacity multi-temperature-zone refrigerator on the market at present has a freezing chamber, a refrigerating chamber and a temperature-variable chamber, and the temperature of the temperature-variable chamber can be adjusted within a certain range, for example, the temperature-variable chamber can be switched between a freezing temperature zone and a refrigerating temperature zone as required, that is, the temperature-variable chamber can be used as the freezing chamber or the refrigerating chamber as required, or the temperature in the temperature-variable chamber can be set to-3 ℃ to 2 ℃ (called as an ice temperature zone), so that food can be well preserved and the food can be easily separated, and therefore, the refrigerator with the temperature-variable chamber is more and more favored by users. For a large refrigerator with multiple temperature zones and multiple chambers, the cold quantity distribution control of each temperature zone is difficult, and for the refrigerator with a temperature-variable chamber, the refrigerator design is undoubtedly challenged greatly. Because the temperature adjustable range of the temperature-changing chamber is very wide, the cold quantity demand range is also wide, in order to enable the temperature-changing chamber and the refrigerating chamber to realize accurate temperature control, the refrigeration air duct system of the refrigerating chamber is usually separated from the air duct systems of the other two chambers to form two air duct systems which operate independently, and two sets of evaporators and fans for forced air supply are respectively configured, however, the whole noise of the refrigerator is increased, the effective volume of the refrigerating chamber is reduced, and meanwhile, the material cost is also increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a one set of refrigeration wind channel circulation system's of walk-in, freezer, alternating temperature room sharing refrigerator to reduce product material cost, improve the effective volume of refrigerator, in order to overcome prior art's not enough.

The technical proposal of the utility model for solving the technical problem is that: the utility model provides a refrigerator, the box of refrigerator is separated for the freezer and the walk-in that lay about and lie in the top to and be located the temperature-changing room of below, the back of freezer sets up the evaporimeter storehouse, and main circulation wind channel chamber in evaporimeter storehouse the place ahead, its characterized in that: the main circulation air channel cavity is provided with a centrifugal fan, one side of the top of the main circulation air channel cavity is provided with an air channel sinking cavity, the side wall of the air channel sinking cavity is provided with an air port for supplying air to the refrigerating chamber, the main circulation air channel cavity further comprises a freezing chamber air channel and a temperature-variable chamber air channel, and the sectional area of the temperature-variable chamber air channel is larger than that of the freezing chamber air channel.

The main circulation wind channel chamber includes main circulation wind channel board, the top of main circulation wind channel board is the wind-guiding district, the heavy chamber in wind channel is located the wind-guiding district, corresponds in the wind-guiding district the mounted position of centrifugal fan sets up the fan hole, thereby sets up four baffles on main circulation wind channel board and form the variable temperature room wind channel that is located the centre to and left and right freezer wind channel in variable temperature room wind channel both sides.

The upper end of the first partition plate among the four partition plates extends to the top of the main circulation air duct plate, the upper end of the first partition plate is provided with a protruding section bent towards the centrifugal fan, and the upper ends of the other three partition plates extend towards the centrifugal fan and are spaced from the excircle of the centrifugal fan.

When the fourth intermediate plate upwards vertically extends to be close to the air duct sinking cavity, the upper end of the fourth intermediate plate bends and extends to the centrifugal fan until being close to the excircle of the centrifugal fan, when the third intermediate plate upwards vertically extends to the air guide zone, the upper end of the third intermediate plate bends and extends to the central direction of the centrifugal fan until being close to the excircle of the centrifugal fan, and inlets of the freezing chamber air duct and the temperature-variable chamber air duct are distributed around the excircle of the centrifugal fan.

The upper part of the main circulation air duct plate protrudes towards the direction of the evaporator bin, so that the depth of the air guide area of the main circulation air duct cavity is greater than the depth of other areas of the main circulation air duct cavity.

The refrigerating chamber air channel assembly is arranged at the top of the refrigerating chamber, a refrigerating chamber air channel cavity is arranged in the heat insulation foam layer between the refrigerating chamber and the freezing chamber and connected with the air channel sinking cavity and the refrigerating chamber air channel assembly, and the refrigerating chamber air channel assembly comprises a refrigerating chamber air channel plate, a cover plate of the refrigerating chamber air channel plate and a refrigerating chamber air channel liner.

And a first air door is arranged in the air duct cavity of the refrigerating chamber.

The back of the air duct plate of the refrigerating chamber is provided with an L-shaped air duct.

The utility model has the advantages that:

the utility model discloses establish the evaporimeter storehouse at the freezer back, and carry the freezing through centrifugal fan with the low temperature air in evaporimeter storehouse in the upper portion, cold-stored, the three wind channel in variable temperature chamber, wherein, the air duct system in walk-in passes freezing and the bubble layer between cold-stored, the wind path is shorter, cold wind can arrive the top of reacing the walk-in rapidly, thereby can guarantee the cold volume supply of walk-in, the air supply wind channel in variable temperature chamber extends perpendicularly downwards from the freezer top, and be located in the middle of two freezing branch wind channels, the sectional area in variable temperature chamber wind channel is far greater than cold-stored, frozen wind channel, guarantee through increaseing unit amount of wind sectional area that the variable temperature. Meanwhile, the air door is arranged on the air duct of the temperature-changing chamber, and the air quantity is adjusted through the air door, so that the temperature of the temperature-changing chamber can be adjusted within a wide range. The utility model discloses an evaporimeter, a centrifugal fan of three room sharing of refrigerator realize the temperature control in the interval, through reasonable wind channel design, reduce product material cost, improve the effective volume of refrigerator, reduce whole quick-witted noise.

Drawings

Fig. 1 is a schematic structural diagram of the refrigerator body of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

FIG. 3 is a sectional view taken along line B-B of FIG. 1.

Fig. 4 is a schematic structural diagram of the inner cavity of the refrigerator body.

Fig. 5 is a schematic structural view of a box top air guiding cavity of the refrigerator of the present invention.

Fig. 6 is a schematic structural view of the main circulation duct plate of the refrigerator of the present invention.

Fig. 7 is a schematic diagram (front side) of the structure of the refrigerating chamber air duct plate of the refrigerator of the present invention.

Fig. 8 is a schematic diagram (back) of the structure of the refrigerating chamber air duct plate of the refrigerator of the present invention.

Fig. 9 is a schematic structural view (front side) of the upper duct plate of the refrigerator of the present invention.

Fig. 10 is a schematic structural view (back) of the upper duct plate of the refrigerator of the present invention.

Fig. 11 is a schematic structural view (front side) of the lower duct plate of the refrigerator of the present invention.

Fig. 12 is a schematic structural view (back) of the lower duct plate of the refrigerator of the present invention.

Fig. 13 is a schematic view of the air guide design principle of the refrigerator of the present invention.

Fig. 14 is an enlarged view of a portion E of fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected. Can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

Referring to fig. 1-14, the utility model discloses a refrigerator, including the box, the door body, the space in the box is separated into and is located the top and control freezing room 1 and the walk-in 2 of laying to and the temperature change room 3 that is located the below, and the door body is including freezing room door and cold-stored room door, temperature change room drawer door, and wherein, freezing room door and cold-stored room door are controlled to open the door, and temperature change room drawer door is the push-and-pull door, and the drawer door is connected with the temperature change room drawer with the structure linkage, can pull out the temperature change room drawer in the lump when pulling open the drawer door. The back of freezer sets up evaporimeter storehouse 13, and evaporimeter 4 is installed in the lower part of evaporimeter storehouse 13, and the evaporimeter storehouse is by box freezer inner bag and main circulation wind channel board around the cavity that forms, sets up main circulation wind channel apron in the place ahead of main circulation wind channel board, by main circulation wind channel board and wind channel apron around forming main circulation wind channel chamber, main circulation wind channel chamber can realize: firstly, supplying air to a refrigerating chamber; secondly, supplying air to the freezing chamber; and thirdly, supplying air to the temperature changing chamber. The main circulating air duct cavity is positioned in an interlayer between the evaporator bin and the inner cavity of the freezing chamber. In order to simplify the structure of the manufacturing mold and avoid the mold from being too huge, the main circulation air duct plate is divided into an upper air duct plate 11 and a lower air duct plate 16 which are spliced, and the air duct cover plate is also divided into an upper air duct cover plate 12 and a lower air duct cover plate 17.

The evaporator bin 13 is arranged in the freezing chamber 1 and is positioned on the inner side of the rear wall of the freezing chamber container; the height and width of the evaporator bin 3 are approximately equal to those of the freezing chamber box liner, the evaporator 4 in the evaporator bin 13 exchanges heat with air to obtain cold air, and the cold air is conveyed to the freezing chamber 1, the refrigerating chamber 2 and the temperature changing chamber 3 through the centrifugal fan. Because the refrigerating temperature of freezer 1 is lower, so, in order to ensure the refrigeration effect of freezer 1, set up the evaporimeter storehouse on the wall behind the nearly case courage of freezer 1, can shorten the flow path of cold air flow direction freezer 1 like this, and then ensure the refrigerating temperature of freezer 1.

The main circulation duct plate is provided with a first heat insulating material layer 1101 in a region close to the evaporator 4, and the heat insulating material may be foam or a material having a heat transfer preventing function such as sponge. The heat insulation material layer reduces the transmission of cold energy of the evaporator to the air duct cavity through the air duct plate, so that the influence of excessive low temperature of the evaporator on the air supply temperature of the main circulation air duct cavity is avoided, and the temperature control is more accurate. Similarly, a second thermal insulation material layer 121 is also arranged on a partial back surface (particularly, the middle lower part) of the upper air duct cover plate 12 and the back surface of the lower air duct cover plate 17, so that the temperature of the back wall of the inner cavity of the freezing chamber is prevented from being too low.

The top of the evaporator bin 13 is communicated with the main circulating air duct cavity, cold air in the evaporator bin is sucked by the centrifugal fan 5, the bottom of the evaporator bin 13 is communicated with the air return duct 8, and the air return duct 8 is communicated with the inner cavity of the freezing chamber, the refrigerating chamber and the temperature changing chamber, so that air circulation flowing heat exchange is realized. The centrifugal fan 5 is fixedly installed at the rear back of the upper duct cover plate through a bracket, a fan hole 119 is formed at the upper portion of the upper duct plate 11 corresponding to the centrifugal fan 5, and the cold air in the evaporator compartment 13 is sucked in from the fan hole 119 by the centrifugal fan 5. The upper part of the upper duct plate 11 is the air guiding area and is required to perform the task of distributing the cold air from the evaporator bin to the three compartments. As shown in fig. 2, 3 and 10, the upper duct plate 11 includes a fan assembling portion 110 and a vertical duct portion 117, the fan assembling portion 110 and the vertical duct portion 117 are not on the same plane, the air guiding region (see the fan assembling portion 110) is recessed toward the evaporator chamber than the lower duct region (see the vertical duct portion 117) to make the depth of the air guiding region larger than the duct region, the back of the upper duct plate 11 is provided with a mounting post 116 for mounting and positioning, one side of the freezing chamber liner near the refrigerating chamber is provided with an inward recessed cavity 14, the upper duct plate 11 is provided with a duct recessed cavity 15 above one side near the refrigerating chamber, the duct recessed cavity 15 is trapezoidal and is composed of an opening, an inner end plane and four inclined side walls 115, the opening cross-sectional area of the recessed cavity is larger than the area of the inner end plane, the side walls 115 are provided with a duct opening 151, a refrigerating chamber duct cavity is provided in the insulating foam layer between the refrigerating chamber and the freezing, the cold storage chamber air duct cavity is connected with the air duct sinking cavity 15 and the cold storage chamber air duct assembly, so that cold air enters the cold storage chamber from the air guide area. The first partition board 111, the second partition board 112, the third partition board 113 and the fourth partition board 114 are vertically arranged on the upper air duct board 11 and the lower air duct board 16, the first partition board 111 and the fourth partition board 114 are respectively arranged on the left side and the right side, the free ends of the four partition boards are directly abutted on the upper air duct cover board 12 or the lower air duct cover board 17, so that an air duct cavity is divided into a freezing chamber air duct 19 on the left side and a cooling chamber air duct 18 in the middle, inlets of the three air ducts are close to the excircle of the centrifugal fan and are separated from the excircle of the fan by a certain distance, in order to ensure that the cooling chamber has enough cooling capacity, the sectional area of the cooling chamber air duct 18 is larger than the sum of the sectional areas of the. The upper end of the first partition 111 extends to the top of the upper duct plate and is provided with a protruding section 1111 bent toward the centrifugal fan, the upper ends of the remaining three partitions extend toward the centrifugal fan and keep a distance from the outer circle of the centrifugal fan, and the cold air flow is "thrown" out along the tangent line of the outer circle of the centrifugal fan by the rotation of the centrifugal fan, see fig. 14, the fan air flow is "thrown" out along the tangent line F, and the cold air is distributed to the freezing chamber duct 19 and the middle variable temperature chamber duct 18 and duct caisson 15. Moreover, in order to avoid the air duct sinking chamber 15 and ensure sufficient air volume of the air duct of the freezing chamber, after the fourth intermediate plate 114 is vertically extended to be close to the air duct sinking chamber 15, the upper end 1141 of the fourth intermediate plate bends and extends towards the center direction of the centrifugal fan until being close to the outer circle of the centrifugal fan and keeps a certain distance, and in order to avoid the upper end 1141 of the fourth intermediate plate, the upper end 1131 of the third intermediate plate 113 bends and extends towards the center direction of the centrifugal fan until being close to the outer circle of the centrifugal fan and keeps a certain distance. I.e. such that the inlets of the freezing chamber duct 19 and the intermediate variable temperature chamber duct 18 are distributed around the outer circumference of the centrifugal fan. Thus, the working characteristics of the centrifugal fan are matched, and when the air of the centrifugal fan is thrown out along the rotating tangential direction of the centrifugal fan, the air quantity of the left air channel and the right air channel of the freezing chamber are basically the same. Above structure, can be better lead cold wind, be favorable to reducing fan noise on one hand, reduce the windage, second make cold volume distribution more reasonable, be favorable to temperature scientific control and reduce the complete machine energy consumption.

The left side and the right side below the lower air duct plate 16 are provided with a freezing chamber air return cavity 161, a temperature change chamber air port 181 for sending cold air to the temperature change chamber is arranged on the lower flanging of the lower air duct plate 16, a temperature change chamber air duct cavity is arranged in a heat insulation bubble layer between the temperature change chamber and the freezing chamber and is connected with the temperature change chamber air port 181 and the temperature change chamber air supply duct 31, so that the cold air enters the temperature change chamber from the air guide area through the temperature change chamber air duct 18, the temperature change chamber air port 181, the temperature change chamber air duct cavity, the temperature change chamber air supply duct 31 and the temperature change chamber air outlet 32, and then returns to the evaporator bin 13 from the temperature change chamber air return port 82.

The refrigerating chamber air duct assembly comprises a refrigerating chamber air duct plate 22 and a cover plate thereof, and a refrigerating chamber air duct liner 23 (made of light foaming materials). A first air door 7 is arranged in the air duct cavity of the refrigerating chamber and used for adjusting the air quantity conveyed to the refrigerating chamber. The back of the cold storage room air duct plate 22 is provided with an L-shaped air duct 222, so that the air supply direction is adjusted from horizontal to downward air blowing, an air inlet 221 of the L-shaped air duct 222 is deep into the cavity of the cold storage room air duct, and an air outlet 223 of the L-shaped air duct is opened on a downward flanging of the cold storage room air duct plate 22.

The air return inlet of the refrigerating chamber is arranged near the freezing chamber side, the air return inlet 81 of the freezing chamber is arranged at the lower bottom of the freezing chamber, the air return inlet 82 of the temperature-changing chamber is arranged at the lower part of the temperature-changing chamber and is communicated with the air return duct 8.

The working process of the freezing chamber 1 is as follows: after the evaporator in the evaporator bin exchanges heat with air, under the action of a centrifugal fan, cold air flows into two branch air channels of the freezing chamber along the air outlet of the evaporator bin through the air distribution area, then enters the freezing chamber through the air outlet of each freezing chamber to refrigerate each layer area of the freezing chamber, and then returns to the evaporator bin through the air return opening of the freezing chamber.

The working process of the refrigerating chamber 2 is as follows: after the evaporator in the evaporator bin exchanges heat with air, under the action of a centrifugal fan, the cold air flows into the cold storage room side air duct opening along the air outlet of the evaporator bin through the air distribution area, then enters the cold storage air duct in the cold storage room, and then enters the cold storage room through the air outlet of each cold storage room so as to refrigerate each layer area of the cold storage room, and then returns to the evaporator bin through the air return opening of the cold storage room.

The working process of the temperature changing chamber 3 is as follows: after evaporator 4 that is located evaporator storehouse 13 carries out the heat transfer to the air, under centrifugal fan's effect, air conditioning flows into temperature-varying chamber wind channel 18 along evaporator storehouse 13's air outlet and through the wind-guiding district, rethread temperature-varying chamber air outlet 32 gets into temperature-varying chamber 3, in order to refrigerate temperature-varying chamber 3, and accessible temperature-varying chamber air door 6 adjusts the amount of wind, realize the regulation of temperature in the temperature-varying chamber 3, and then make the temperature of temperature-varying chamber 3 at cold-stored temperature, switch between soft cold-stored temperature and cold-stored temperature, air current behind the heat transfer in the temperature-varying chamber 3 loops through temperature-varying chamber return air inlet 82 and return air duct 8 again and gets into evaporator storehouse 13 bottom, rethread evaporator 4 carries out the.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that can be made without inventive step are intended to be embraced therein.

Claims (8)

1. The utility model provides a refrigerator, the box of refrigerator is separated for the freezer and the walk-in that lay about and lie in the top to and be located the temperature-changing room of below, the back of freezer sets up the evaporimeter storehouse, and main circulation wind channel chamber in evaporimeter storehouse the place ahead, its characterized in that: the main circulation air channel cavity is provided with a centrifugal fan, one side of the top of the main circulation air channel cavity is provided with an air channel sinking cavity, the side wall of the air channel sinking cavity is provided with an air port for supplying air to the refrigerating chamber, the main circulation air channel cavity further comprises a freezing chamber air channel and a temperature-variable chamber air channel, and the sectional area of the temperature-variable chamber air channel is larger than that of the freezing chamber air channel.

2. The refrigerator of claim 1, wherein: the main circulation wind channel chamber includes main circulation wind channel board, the top of main circulation wind channel board is the wind-guiding district, the heavy chamber in wind channel is located the wind-guiding district, corresponds in the wind-guiding district the mounted position of centrifugal fan sets up the fan hole, thereby sets up four baffles on main circulation wind channel board and form the variable temperature room wind channel that is located the centre to and left and right freezer wind channel in variable temperature room wind channel both sides.

3. The refrigerator of claim 2, wherein: the upper end of the first partition plate among the four partition plates extends to the top of the main circulation air duct plate, the upper end of the first partition plate is provided with a protruding section bent towards the centrifugal fan, and the upper ends of the other three partition plates extend towards the centrifugal fan and are spaced from the excircle of the centrifugal fan.

4. The refrigerator of claim 3, wherein: when the fourth intermediate plate upwards vertically extends to be close to the air duct sinking cavity, the upper end of the fourth intermediate plate bends and extends to the centrifugal fan until being close to the excircle of the centrifugal fan, when the third intermediate plate upwards vertically extends to the air guide zone, the upper end of the third intermediate plate bends and extends to the central direction of the centrifugal fan until being close to the excircle of the centrifugal fan, and inlets of the freezing chamber air duct and the temperature-variable chamber air duct are distributed around the excircle of the centrifugal fan.

5. The refrigerator of claim 4, wherein: the upper part of the main circulation air duct plate protrudes towards the direction of the evaporator bin, so that the depth of the air guide area of the main circulation air duct cavity is greater than the depth of other areas of the main circulation air duct cavity.

6. The refrigerator of claim 5, wherein: the refrigerating chamber air channel assembly is arranged at the top of the refrigerating chamber, a refrigerating chamber air channel cavity is arranged in the heat insulation foam layer between the refrigerating chamber and the freezing chamber and connected with the air channel sinking cavity and the refrigerating chamber air channel assembly, and the refrigerating chamber air channel assembly comprises a refrigerating chamber air channel plate, a cover plate of the refrigerating chamber air channel plate and a refrigerating chamber air channel liner.

7. The refrigerator of claim 6, wherein: and a first air door is arranged in the air duct cavity of the refrigerating chamber.

8. The refrigerator of claim 7, wherein: the back of the air duct plate of the refrigerating chamber is provided with an L-shaped air duct.

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