CN115597264A

CN115597264A - Air-cooled horizontal refrigerator and operation control method thereof

Info

Publication number: CN115597264A
Application number: CN202110716855.4A
Authority: CN
Inventors: 李彦玫; 李大伟; 廉锋
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2023-01-13

Abstract

The invention provides an air-cooled horizontal refrigerator and an operation control method thereof. The freezer includes: the inner container is provided with a step wall formed by bending upwards from the bottom wall, and a press bin is arranged below the step wall; a cover plate arranged in the inner container, wherein a refrigerating chamber provided with a fan and an evaporator is formed between the cover plate and the inner container, and the evaporator and the step wall are arranged side by side in the left-right direction; a plurality of air supply outlets on the upper part; an auxiliary air supply outlet at the lower part; and a control system configured to: after a starting instruction of the compressor is obtained, the compressor and the fan are controlled to operate, and the temperature T of the storage chamber is judged to be more than or equal to T1; if yes, the fan supplies air to the storage compartment through the air supply ports instead of the auxiliary air supply port, and when the T is reduced to T2, the fan simultaneously supplies air to the storage compartment through the air supply ports and the auxiliary air supply port; if not, the fan simultaneously supplies air to the storage compartment through the air supply ports and the auxiliary air supply ports; wherein T1 is more than Ton, toff is less than T2 and less than Ton.

Description

Air-cooled horizontal refrigerator and operation control method thereof

Technical Field

The invention relates to an air-cooled horizontal refrigerator and an operation control method thereof, belonging to the technical field of household appliances.

Background

At present, the refrigerator is generally divided into a direct cooling refrigerator and an air cooling refrigerator according to the refrigeration principle of the refrigerator. For an air-cooled horizontal refrigerator, a plurality of air supply openings are usually arranged, however, the air supply openings supply air uniformly no matter how the refrigerator is in a state, on one hand, the temperature of each position in the refrigerator is unbalanced, so that the refrigerator is partially too cold or too hot, on the other hand, when the temperature in the refrigerator is abnormally high, the temperature of the refrigerator cannot be quickly lowered, the refrigerator is in a high-temperature state for a long time, the refrigerator is easy to deteriorate, and the storage quality of food is influenced.

Disclosure of Invention

The invention aims to provide an air-cooled horizontal refrigerator and an operation control method thereof.

To achieve the above object, one embodiment of the present invention provides an air-cooled horizontal refrigerator, including:

the inner container is provided with a bottom wall which is opposite to the opening in the vertical direction and a step wall which is formed by bending the bottom wall upwards, and a press bin for containing a compressor is arranged below the step wall;

the cover plate is arranged in the accommodating cavity and divides the accommodating cavity into a storage chamber and a refrigerating chamber positioned between the cover plate and the inner container, a fan and an evaporator communicated with the compressor are distributed in the refrigerating chamber, and the evaporator and the step wall are arranged side by side in the left-right direction;

a plurality of air supply outlets positioned at the upper part of the storage compartment;

the auxiliary air supply outlet is positioned at the lower part of the storage compartment;

the temperature sensor is used for sensing the temperature of the storage chamber; and (c) a second step of,

a control system configured to: after a starting instruction of the compressor is obtained, the compressor and the fan are controlled to operate, and whether the temperature reaches a first temperature threshold value or not is judged; if so, a first air supply path from the fan to the storage compartment through the air supply ports is conducted, a second air supply path from the fan to the storage compartment through the auxiliary air supply ports is cut off, and the first air supply path and the second air supply path are conducted simultaneously until the temperature is reduced to a second temperature threshold value; if not, the first air supply path and the second air supply path are conducted;

wherein the first temperature threshold is higher than a boot temperature; the second temperature threshold is greater than a shutdown temperature and less than the startup temperature.

As a further improvement to an embodiment, the cooler further comprises:

the door body sensor is used for sensing the opening and closing of the door body at the opening;

the control system is further configured to: when the fan runs, the door sensor senses that the door is opened, the first air supply path and the second air supply path are conducted, or the first air supply path is cut off and the second air supply path is conducted.

As a further improvement to an embodiment, the cooler further comprises:

the human body sensor is used for sensing human body signals in an external preset area of the refrigerator;

the control system is further configured to: when the human body sensor senses the human body signal in the operation of the fan, the first air supply path and the second air supply path are conducted, or the first air supply path is cut off and the second air supply path is conducted.

As a further improvement of an embodiment, the blower is provided as a centrifugal blower, and the volute casing of the blower has a main air outlet, a volute tongue at the main air outlet, and a secondary air outlet at the volute tongue, wherein the volute tongue defines a minimum radius of the volute casing, the main air outlet is communicated to the storage compartment through the plurality of air supply openings, and the secondary air outlet is communicated to the storage compartment through the auxiliary air supply opening.

As a further improvement of an embodiment, the control system includes a first electrically-operated damper movably disposed at the main air outlet to open or close the first air path, and a second electrically-operated damper movably disposed at the sub air outlet to open or close the second air path.

In order to achieve the above object, an embodiment of the present invention provides an operation control method for an air-cooled horizontal refrigerator, including:

a plurality of air supply outlets positioned at the upper part of the storage chamber and an auxiliary air supply outlet positioned at the lower part of the storage chamber;

the method comprises the following steps:

sensing the temperature of the storage chamber;

acquiring a starting instruction of the compressor, controlling the operation of the compressor and the operation of the fan, and judging whether the temperature reaches a first temperature threshold value, wherein the first temperature threshold value is higher than a starting temperature;

if so, a first air supply path from the fan to the storage compartment through the air supply outlets is conducted, a second air supply path from the fan to the storage compartment through the auxiliary air supply outlets is cut off, and the first air supply path and the second air supply path are conducted simultaneously until the temperature is reduced to a second temperature threshold value; wherein the second temperature threshold is between a shutdown temperature and the startup temperature;

if not, the first air supply path and the second air supply path are conducted.

As a further refinement of an embodiment, the method further comprises:

sensing the opening and closing of the door body at the opening;

when the fan senses that the door body is opened in operation, the first air supply path and the second air supply path are conducted, or the first air supply path is cut off and the second air supply path is conducted.

As a further refinement of an embodiment, the method further comprises:

sensing a human body signal in an external preset area of the refrigerator;

and when the human body signal is sensed in the operation of the fan, the first air supply path and the second air supply path are switched on, or the first air supply path is cut off and the second air supply path is switched on.

Compared with the prior art, the implementation mode has the following beneficial effects: when the compressor runs, the air supply states of the air supply ports and the auxiliary air supply ports are controlled according to whether the temperature of the storage chamber reaches a first temperature threshold value or not, so that when the storage chamber is in an abnormal high-temperature state, a large amount of air is discharged to the upper part of the storage chamber with higher temperature through the air supply ports, the temperature in the storage chamber is rapidly reduced from top to bottom, and the phenomenon that stored objects are rotten and deteriorated due to the fact that the stored objects are in a high-temperature state for a long time is avoided; when the storage chamber is not in an abnormal high-temperature state but in a conventional refrigeration state, air is supplied to the upper part of the storage chamber through the plurality of air supply ports and the lower part of the storage chamber through the auxiliary air supply ports, so that the temperature of the upper part and the lower part of the storage chamber is uniform, the cooling rate is improved, and energy is saved and consumption is reduced.

Drawings

Fig. 1 is a perspective view of a refrigerator according to an embodiment of the present invention;

FIG. 2base:Sub>A isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 2B is a cross-sectional view taken along line B-B of FIG. 1;

fig. 3 is a perspective view showing a part of the structure of a refrigerator according to an embodiment of the present invention, in which a rear wall plate of an outer case and an insulating layer of the case are omitted;

FIG. 4 is a perspective view of the inner container, the cover plate, the air duct plate, etc. according to an embodiment of the present invention;

FIG. 5a is an exploded view of the cabinet portion of FIG. 4;

FIG. 5b is a further exploded view of the part of the cabinet of FIG. 4;

FIG. 6 is a perspective view of the inner container according to one embodiment of the present invention;

FIG. 7a is a cross-sectional partial view taken along line D-D of FIG. 4;

FIG. 7b is a cross-sectional partial view taken along line E-E of FIG. 4;

FIG. 8 is a sectional partial view taken along line C-C of FIG. 3;

figure 9a is an exploded view of a suspension member and fan module with the impeller omitted in accordance with an embodiment of the present invention;

figure 9b is yet another exploded view of the suspension member and fan module with the impeller omitted in accordance with one embodiment of the present invention;

FIG. 9c is a cross-sectional view of the volute of one embodiment of the present invention taken perpendicular to the pivot axis;

FIG. 9d is a schematic view of the locking portion and mounting channel at the inside surface of the retention plate in accordance with one embodiment of the present invention;

FIG. 10 is a perspective view of the liner, the cover plate, and the air duct plate according to an embodiment of the present invention, in which an enlarged cross-sectional view of the selected area along the horizontal direction is illustrated;

FIG. 11 is a schematic perspective view of a press silo structure according to an embodiment of the present invention;

fig. 12 is a sectional view of a portion of the region G in fig. 3 taken along the vertical direction.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to specific examples illustrated in the drawings. These examples are not intended to limit the scope of the present invention and those skilled in the art will recognize that changes may be made in the form or detail without departing from the spirit and scope of the invention.

Referring to fig. 1, the present embodiment provides a refrigerator 100, in particular a horizontal refrigerator, which generally includes a box body 1, a door body 2 and a refrigeration system.

Referring to fig. 2a, the box body 1 includes an inner container 11, an outer box 12, an insulating layer 13 and a cabinet opening 14.

Wherein, the inner container 11 is provided with a box-type structure with an open upper part, and the container wall of the inner container encloses an accommodating cavity 10 with an upper opening (the reference number is shown in figure 5 a); the outer box 12 is arranged to be a rectangular box structure with an open upper part, which is sleeved outside the inner container 11, namely the inner container 11 is embedded inside the box shell 12, and the outer box 12 and the inner container 11 are separated by a certain distance to form a heat preservation space; the heat preservation layer 13 is filled in the heat preservation space between the outer box 12 and the inner container 11, and can be formed by foaming a heat preservation material such as polyurethane, so the heat preservation layer 13 can be called as a foaming layer, and based on the heat preservation layer 13, the box body 1 forms a heat preservation box body capable of avoiding heat exchange between the inside and the outside of the refrigerator 100; the cabinet opening 14 surrounds the upper opening of the accommodating chamber 10 by one circle, is installed at the upper edge of the inner container 11 and the upper edge of the outer case 12, and closes the heat-insulating space.

Referring again to fig. 1, the door body 2 is disposed above the cabinet 1, and in the present embodiment, the door body 2 is provided as a rotary door body, and a rear end thereof is pivotally connected to a rear portion of the cabinet 1 by a hinge structure to open or close the accommodating chamber 10. That is, when the door body 2 is lifted upward by the handle 20 at the front end of the door body 2, the front end of the door body 2 pivots upward with respect to the cabinet 1 to open the receiving chamber 10; on the contrary, in the open state, the front end of the door body 2 pivots downward relative to the cabinet 1, and the door body 2 can be buckled on the cabinet opening 14 of the cabinet 1 to hermetically close the accommodating cavity 10.

Referring to fig. 2a, the door body 2 is specifically configured as a heat-insulating door body in the present embodiment, and includes a door shell 22, a door liner 21, and a heat-insulating layer 23. Wherein, the door shell 22 and the door lining 21 are arranged opposite up and down, and the door shell 22 is positioned above the door lining 21; the door liner 21 is sealed and attached to the cabinet opening 24 to close the accommodating cavity 10; the heat insulation layer 23 is filled between the door shell 22 and the door liner 21, and may be formed by foaming a heat insulation material such as polyurethane, so the heat insulation layer 23 may also be referred to as a foaming layer, and based on the heat insulation layer 23, the door body 2 forms a heat insulation door body capable of avoiding heat exchange between the inside and the outside of the refrigerator 100.

The refrigeration system is used to provide refrigeration for low temperature storage of the freezer 100. Specifically, referring to fig. 2a and 3, the refrigeration system is configured as a circulation circuit for the flow of refrigerant, which includes a compressor 31, a condenser 32, and an evaporator 33, which are sequentially communicated along the circulation circuit.

In principle, the compressor 31 serves to compress a refrigerant (e.g., freon) and supply the compressed refrigerant to the condenser 32; after heat is dissipated by the condenser 32, the refrigerant is condensed into a liquid state; the liquid refrigerant then flows through the line to the evaporator 33 and is vaporized by the pressure leaving the compressor 31, causing the air surrounding the evaporator 33 to be cooled; and the vaporized refrigerant is introduced into the compressor 31 again through the pipe and circulated as such.

In the present embodiment, the compressor 31 is disposed in the press compartment 120 at the lower right portion of the refrigerator 100, and the press compartment 120 is located between the outer case 12 and the inner container 11.

Specifically, as previously described, the outer carton 12 is provided as an open-topped rectangular box-like structure, comprising first and

second wall panels

121, 122 arranged in opposition in a first direction, third and

fourth wall panels

123, 124 arranged in opposition in a second direction, and a bottom wall panel 125, see fig. 2a and 2b. In the present embodiment, the bottom wall plate 125 is a substantially horizontally disposed flat plate; the first direction is a front-back direction, the second direction is a left-right direction, the first wall panel 121 can be called a front wall panel 121, the second wall panel 122 can be called a rear wall panel 122, the third wall panel 123 can be called a left wall panel 123, and the fourth wall panel 124 can be called a right wall panel 124. The front wall panel 121, the rear wall panel 122, the left wall panel 123, and the right wall panel 124 extend vertically upward from the front edge, the rear edge, the left edge, and the right edge, respectively, of the bottom wall panel 125, perpendicular to the bottom wall panel 125.

Referring to fig. 3, the box body 1 further includes a press compartment cover 15, and the press compartment cover 15 and the outer box 12 together enclose a press compartment 120. Specifically, the press chamber cover 15 is located between the outer box 12 and the inner container 11, and is fixedly installed inside the outer box 12.

The press silo cover 15 includes a press silo top cover 151 and a press silo side cover 152. The front end edges of the press bin top cover plate 151 and the press bin side cover plate 152 are fixedly mounted on the front wall plate 121, and the rear end edges of the two are fixedly mounted on the rear wall plate 122; moreover, a top cover plate 151 of the press cabin is positioned above the press cabin 120, which defines the upper boundary of the press cabin 120, and the right end edge of the top cover plate 151 of the press cabin is fixedly installed on the right wall plate 124; and a press chamber side cover plate 152 is located at the left side of the press chamber 120, which defines the left boundary of the press chamber 120, and the press chamber side cover plate 152 extends downward from the left end edge of the press chamber top cover plate 151 until the lower end edge is fixedly connected to the bottom wall plate 125.

In this embodiment, the cover plate 15 of the pressing machine bin and the outer box 12 together enclose the pressing machine bin 120 located at the lower right part of the box body 1; in a variation, the orientation relationship between the press cabin cover 15 and the outer box 12 changes correspondingly with the orientation of the press cabin 120, for example, if the press cabin 120 is located at the lower rear portion of the box body 1, the press cabin top cover 151 extends forward from the rear wall 122, and so on, and the description is omitted.

The outer box 12 is further provided with a heat dissipation air opening 1201, and the press chamber 120 is communicated to the external environment of the refrigerator 100 through the heat dissipation air opening 1201, so as to dissipate hot air generated by heat generated by the compressor 31 in the press chamber 120, thereby achieving heat dissipation of the compressor 31.

Condenser 32, like press storehouse 120 also needs the heat dissipation, and its winding is in the inside of outer container 12 in this embodiment, and specifically accessible sticky tape pastes on the inboard surface of outer container 12, is separated through insulating layer 13 all the time between condenser 32 and the inner bag 11, so, can realize the quick heat dissipation of condenser 32 to avoid condenser 32's heat to influence and hold chamber 10. In a variation, the condenser 32 may also be disposed in the pressing chamber 120 to dissipate heat together with the compressor 31, and the heat dissipation manner may be any manner that is feasible and is not described herein.

Further, the inner container 11 is configured as a box-type structure with an open upper portion as described above, and the container wall includes a side wall 111, a side wall 112, a side wall 113, a side wall 114, a bottom wall 115, and a step wall 116, as shown in fig. 2a, 2b, and 4.

In the present embodiment, the bottom wall 115 is a substantially horizontally disposed flat plate; the side wall 111, the side wall 112, the side wall 113 and the side wall 114 are located above the bottom wall 115 and extend substantially vertically; the side wall 111 and the side wall 112 are oppositely arranged along a first direction, and the side wall 113 and the side wall 114 are oppositely arranged along a second direction; as mentioned above, the first direction is a front-back direction, and the second direction is a left-right direction, so that the sidewall 111 can be also referred to as a front sidewall 111, the sidewall 112 can be also referred to as a back sidewall 112, the sidewall 113 can be also referred to as a left sidewall 113, and the sidewall 114 can be also referred to as a right sidewall 114.

The stepped wall 116 is bent upward from the bottom wall 115, so that it is not completely flat but has a step-like structure at the bottom of the receiving chamber 10. Below the stepped wall 116, there is a press chamber 120, and it can be seen that the stepped wall 116 is basically arranged to avoid the press chamber 120, so as to optimize the structure of the refrigerator 100 and increase the space utilization of the refrigerator 100.

In the present embodiment, the stepped wall 116 is formed at the lower right portion of the inner container 11 in accordance with the position of the press compartment 120, however, if the position of the press compartment 120 is changed from the lower right portion of the box body 1 shown in the drawing to other positions, such as the lower left portion, the middle portion, the lower rear portion, and the like of the box body 1, the position of the stepped wall 116 is correspondingly changed from the lower right portion of the inner container 11 to other positions, such as the lower left portion, the middle portion, the lower rear portion, and the like of the inner container 11.

More specifically, the stepped wall 116 includes a stepped top wall 1161 and a stepped side wall 1162. The lower end edge of the stepped side wall 1162 is connected to the bottom wall 115 of the inner container 11, and extends vertically upward from the right end edge of the bottom wall 115 approximately perpendicular to the bottom wall 115; step top wall 1161 is substantially perpendicular to step side wall 1162 and parallel to bottom wall 115, and step top wall 1161 extends rightward from the upper edge of step side wall 1162 until it is vertically connected to the lower edge of right side wall 114 of inner container 11. In this embodiment, the step wall 116 is arranged in a right-angled configuration, but not limited thereto, for example, in a modified embodiment, the step top wall 1161 and the step side wall 1162 may be arranged in an obtuse angle or an acute angle, and the step wall 116 may also be a completely curved plate without any significant boundary line.

In this embodiment, evaporator 33 arranges in holding chamber 10, and freezer 100 sets up to the forced air cooling freezer, so, freezer 100 of this embodiment has the advantage of frostless, and makes things convenient for the maintenance of evaporator 33. Specifically, the refrigerator 100 includes a cover plate 4 disposed in the accommodating chamber 10, and the cover plate 4 is connected to the inner container 11 and divides the accommodating chamber 10 into a storage compartment 10a and a refrigerating compartment 10b. The storage chamber 10a can be used for storing food at low temperature, and the accommodating cavity 10 is opened and closed through the door body 2, so that articles in the storage chamber 10a can be stored and taken; the refrigerating compartment 10b is located between the cover 4 and the inner container 11, and is used for accommodating the evaporator 33, so that when the refrigerating system is operated, i.e., when the compressor 31 is started, refrigerant in the evaporator 33 exchanges heat with air in the refrigerating compartment 10b to form cold air in the refrigerating compartment 10b, and the cold air can be delivered into the storage compartment 10a through an air delivery passage described later, thereby maintaining a low-temperature environment of the storage compartment 10a.

Preferably, the evaporator 33 is arranged side by side with the step wall 116 in the left-right direction, for example, in the illustrated embodiment, the step wall 116 is located at the lower right portion of the inner container 11, and the evaporator 33 is correspondingly located at the left side of the step wall 116, i.e., between the step wall 116 and the left side wall 113; of course, in the modified embodiment, if the stepped wall 116 is located at the lower left portion of the inner container 11, the evaporator 33 is correspondingly located at the right side of the stepped wall 116, or if the stepped wall 116 is located at the middle bottom of the inner container 11, the evaporator 33 may be correspondingly located at the right side of the stepped wall 116, or may be correspondingly located at the left side of the stepped wall 116. In this way, by arranging the evaporator 33 and the step wall 116 in the left-right direction, the volume ratio of the refrigerator 100 can be greatly increased compared to the related art.

At least a portion of the refrigerating compartment 10b is arranged side by side with the stepped wall 116 in the left-right direction, correspondingly, depending on the position of the evaporator 33. In the preferred embodiment of the drawings, the refrigerated compartment 10b is disposed immediately adjacent to the stepped wall 116, and accordingly, the refrigerated compartment 10b is formed between the cover plate 4 and the stepped wall 116.

Specifically, referring to fig. 5a, the cover plate 4 includes a side cover plate 42 extending vertically upward perpendicular to the bottom wall 115 and a top cover plate 41 extending horizontally rightward from an upper end edge of the side cover plate 42, the side cover plate 42 and the top cover plate 41 being substantially perpendicular, and a right end edge of the top cover plate 41 being connected to the stepped wall 116. Thus, side cover plate 42 defines the left boundary of refrigeration compartment 10b, step side wall 1162 defines the right boundary of refrigeration compartment 10b, bottom wall 115 defines the lower boundary of refrigeration compartment 10b, and top cover plate 41 defines the upper boundary of refrigeration compartment 10b. As such, in the preferred embodiment, by disposing the refrigerating compartment 10b next to the stepped wall 116, the volume ratio of the refrigerator 100 can be greatly increased, the storage of the goods is facilitated, and the refrigerating compartment 10b is made to be adjacent to the pressing compartment 120, so that the piping layout of the refrigerating system is optimized, the refrigerating efficiency is improved, and the flow noise of the refrigerant is reduced. It is to be understood that in an alternative embodiment, the refrigerating compartment 10b may be moved further to the left in the illustrated position away from the stepped wall 116, so that a portion of the storage compartment 10a may be formed between the refrigerating compartment 10b and the stepped wall 116.

Further, the front end edge of the cover plate 4 abuts against the front side wall 111 of the inner container 11, and the rear end edge thereof abuts against the rear side wall 112 of the inner container 11, so that the refrigerating compartment 10b is defined by the front side wall 111 and the rear side wall 112, that is, the front side wall 111 defines the front boundary of the refrigerating compartment 10b, and the rear side wall 112 defines the rear boundary of the refrigerating compartment 10b, in addition to the cover plate 4 and the step wall 116. By the arrangement, the volume ratio of the refrigerator 100 is improved, storage objects can be placed in the storage chamber 10a conveniently, and air supply of the refrigerator 100 can be improved more favorably.

As mentioned above, the cabinet opening 14 is mounted at the upper end edge of the inner container 11, see fig. 2b, and has a rim extending from above the inner container 11 to the inside of the inner container 11, which specifically includes a rear rim 142 located inside the rear sidewall 112 and a front rim 141 located inside the front sidewall 111. The front and rear cover edges 141 and 142 have a smaller distance in the front-rear direction than the width of the accommodation chamber 10 in the front-rear direction, that is, the distance between the front and

rear side walls

111 and 112 in the front-rear direction.

In this regard, referring to fig. 5b, the cover plate 4 includes a front cover plate portion 4a and a rear cover plate portion 4b, a front end edge of the front cover plate portion 4a contacts the front side wall 111, a rear end edge of the rear cover plate portion 4b contacts the rear side wall 112, and the front cover plate portion 4a and the rear cover plate portion 4b are provided separately and both have a width in the front-rear direction not greater than a distance between the front and

rear edges

141 and 142 in the front-rear direction. So, with apron 4 along the fore-and-aft direction fall into the front cover plate portion 4a and the back cover plate portion 4b that the components of a whole that can function independently set up, when apron 4 is installed or is pulled out from holding chamber 10 in holding chamber 10, front cover plate portion 4a and back cover plate portion 4b load and unload respectively, can not receive the interference of cabinet mouth 14, thereby make things convenient for the installation and the dismantlement of apron 4, avoid apron 4 fish tail inner bag 11 or cabinet mouth 14, also can need not to dismantle the dismantlement of accomplishing apron 4 under the condition of cabinet mouth 14, and then make things convenient for the maintenance of refrigeration compartment 10b internal component to change.

Preferably, referring to fig. 2b and 5b, the rear end edge of the front cover plate portion 4a forms a stepped structure 4a1 recessed toward the refrigerating compartment 10b, specifically, for the top cover plate 41, the stepped structure 4a1 at the rear end edge of the top cover plate 41 is recessed downward, and for the side cover plate 42, the stepped structure 4a1 at the rear end edge of the side cover plate 42 is recessed rightward; the front end edge of the rear cover plate portion 4b is pressed against the stepped structure 4a 1. Thus, the mounting firmness of the cover plate 4 can be enhanced. Of course, in a modified embodiment, the step structure 4a1 may also be formed at the front end edge of the rear cover plate portion 4b to press the rear end edge of the front cover plate portion 4a against the front end edge of the rear cover plate portion 4 b.

In this embodiment, the step structure 4a1 may be provided such that the front cover plate 4a and the rear cover plate 4b are smoothly butted, the top cover 41 is coplanar with the front cover plate 4a and the rear cover plate 4b, and the side covers 42 are coplanar with the front cover plate 4a and the rear cover plate 4 b. In this way, the flatness of the outer surface of the cover plate 4 (i.e., the surface facing the storage compartment 10 a) can be optimized, the appearance can be improved, and dirt collection due to uneven seams can be avoided.

Referring to fig. 2a to 5b, the refrigerator 100 further includes a heat-insulating cover plate 43 disposed in the refrigerating compartment 10b, and the heat-insulating cover plate 43 is closely attached to a surface of the cover plate 4 facing the refrigerating compartment 10b to cover the evaporator 33 from above and from the left side, thereby preventing cold air at the evaporator 33 from directly flowing into the storage space 10a via the cover plate 4. Preferably, the seam between the front cover plate 4a and the rear cover plate 4b is attached inside the surface of the heat insulating cover plate 43, i.e. the heat insulating cover plate 43 extends from the surface of the front cover plate 4a to the surface of the rear cover plate 4b without any break, so that the seam between the front cover plate 4a and the rear cover plate 4b is shielded by the heat insulating cover plate 43, thereby preventing the cold air at the evaporator 33 from flowing to the storage space 10a through the seam between the front cover plate 4a and the rear cover plate 4 b.

Further, referring to fig. 4 to 7b, the edge of the cover plate 4 is assembled and connected to the liner wall of the liner 11 through a fastening mechanism, in the embodiment of the drawings, the fastening mechanism is shown at the right end edge of the top cover plate 41 and at the lower end edge of the side cover plate 42, but it is understood that the assembly and connection with the liner wall of the liner 11 can be realized through the fastening mechanism and through the same structural design at the front end edge of the top cover plate 41, the rear end edge of the top cover plate 41, the front end edge of the side cover plate 42, and the rear end edge of the side cover plate 42.

The assembly structure of the edge of the cover plate 4 and the liner wall of the liner 11 in this embodiment will be described by taking the right edge of the top cover plate 41 and the lower edge of the side cover plate 42 as examples,

specifically, referring to fig. 6 to 7b, the fastening mechanism includes a sheet metal bracket 44, a first screw 481, and a second screw 482.

The sheet metal bracket 44 is located in the refrigerating compartment 10b, and includes a cover plate support plate 442 parallel to the edge of the cover plate 4 and a liner support plate 441 parallel to the liner wall of the liner 11. The cover plate support plate 442 and the liner support plate 441 are fixedly connected, and preferably, the two are integrally formed sheet metal parts. The cover plate support plate 442 is fastened to the edge of the cover plate 4 by a second screw 482, and the liner support plate 441 is fastened to the liner wall of the liner 11 by a first screw 481. So, through setting up panel beating support 44 in refrigeration cabin 10b, realize the fastening connection between 4 borders of apron and the 11 courage walls of inner bag as intermediary's media with this panel beating support 44 again, on the one hand can strengthen joint strength, on the other hand, 4 borders of apron need not to set up the protruding turn-ups that stretches to in the storing room 10a again, avoid because the produced pleasing to the eye degree of this turn-ups is poor, the roughness is poor, difficult clean scheduling problem, on the other hand, fastening device's setting makes the processing degree of difficulty of inner bag 11 reduce, and the installation of apron 4 is convenient fast.

Specifically, taking the lower edge of the side cover plate 42 as an example: referring to fig. 7b, the sheet metal bracket 44 is located at the lower left portion of the refrigeration compartment 10b, and has a cover plate support plate 442 parallel to the lower end edge of the side cover plate 42 and vertically upward perpendicular to the bottom wall 115, and the cover plate support plate 442 is fastened to the lower end edge of the side cover plate 42 by a second screw 482; accordingly, the inner bag support plate 441 is horizontally disposed parallel to the bottom wall 115 connected to the lower end edge of the side cover 42, and the inner bag support plate 441 is fastened to the bottom wall 115 by a first screw 481. Thus, the lower edge of the side cover plate 42 does not need to be provided with a flange which protrudes leftwards and extends into the storage compartment 10a, and the unevenness of the area on the bottom wall 115 close to the lower edge of the side cover plate 42 is avoided.

Taking the right edge of the top cover plate 41 as an example: referring to fig. 7a, the sheet metal bracket 44 is located at the upper right portion of the refrigeration compartment 10b, and has a cover plate support 442 parallel to the right end edge of the top cover plate 41 and horizontally disposed, and the cover plate support 442 is fastened to the right end edge of the top cover plate 41 by a second screw 482; accordingly, the inner container support plate 441 extends substantially vertically in parallel with the stepped side wall 1162 connected to the right end edge of the top cover plate 41, and the inner container support plate 441 is fastened to the stepped side wall 1162 by a first screw 481.

Further, the inner container 11 includes a first container wall portion for enclosing the refrigerating compartment 10b and a second container wall portion for enclosing the storage compartment 10a, and in this embodiment, the first container wall portion includes the stepped side wall 1162, the lower right portion of the front side wall 111, the lower right portion of the rear side wall 112, and the right end portion of the bottom wall 115; the second bladder wall portion is the remaining bladder wall portion of the bladder 11 except for the stepped side wall 1162, the right lower portion of the front side wall 111, the right lower portion of the rear side wall 112, and the right end portion of the bottom wall 115. In this embodiment, the liner support plate 441 is fastened to the first liner wall portion by a first screw 481, and the cover plate support plate 442 protrudes from the liner support plate 441 into the refrigeration compartment 10b, so that the sheet metal bracket 44 is located in the refrigeration compartment 10b.

Specifically, the liner wall (specifically, the first liner wall portion) of the liner 11 is provided with first mounting holes matched with the first screws 481, and the liner support plate 441 is provided with second mounting holes matched with the first screws 481, so that the liner support plate 441 is disposed in the first mounting holes in the liner wall of the liner 11 and the second mounting holes in the liner support plate 441 by the first screws 481, thereby fixedly connecting the liner support plate 441 and the liner wall of the liner 11.

Preferably, a fixing cap 45 with a threaded hole is arranged on the outer side of the inner container 11, the fixing cap 45 is preferably a plastic piece, and the tail part of the first screw 481 passes through the second mounting hole on the inner container support plate 441 and the first mounting hole on the wall of the inner container 11 in sequence on one side of the accommodating cavity 10 and then is screwed in the fixing cap 45.

The fixing cap 45 is embedded in the insulating layer 13, namely the fixing cap 45 is installed on the outer side of the inner container 11 before the insulating layer 13 is formed by foaming; moreover, in this embodiment, one end of the fixing cap 45 away from the liner wall of the liner 11 is a blind end, that is, the threaded hole in the fixing cap 45 is a blind hole with an open inner end and a closed outer end. Thus, the fixing cap 45 is matched with the first screw 481 to lock the liner supporting plate 441 and the liner wall of the liner 11, and meanwhile, the foaming material is prevented from overflowing into the accommodating cavity 10 through the threaded hole of the fixing cap 45 in the forming process of the heat insulation layer 13.

Further, the edge of the cover plate 4 is provided with a third mounting hole matched with the second screw 482, and the cover plate support plate 442 is provided with a threaded hole 4420 matched with the second screw 482, so that the tail of the second screw 482 passes through the third mounting hole at the side of the storage compartment 10a and then is screwed into the threaded hole 4420, thereby fixedly connecting the edge of the cover plate 4 and the cover plate support plate 442.

Preferably, referring to fig. 5b, 7a and 7b, the edge of the cover plate 4 is provided with a mounting groove 460 recessed away from the storage compartment 10b, and the third mounting hole is formed in a groove bottom wall 461 of the mounting groove 460, i.e., the third mounting hole penetrates through the groove bottom wall 461 from inside to outside. The head of the second screw 482 is received in the mounting groove 460, so that the beauty can be enhanced.

Further, the refrigerator 100 further includes a decorative cover 470, the decorative cover 470 is embedded on a surface of the edge of the cover plate 4 and shields the mounting groove 460, and preferably, a surface of the decorative cover 470 facing the storage compartment 10a is substantially flush with the edge of the cover plate 4. The decoration cover 470 has a catch 470, and a groove circumferential wall 462 of the mounting groove 460 is opened with a bayonet 4601, and the catch 470 is caught in the bayonet 4601 to restrict the decoration cover 470 from being separated from the cover plate 4. Through the cooperation of pawl 470 and bayonet 4601, a quick assembly of decorative cover 470 can be achieved.

Further, as described above, the refrigerator 100 of the present embodiment is implemented as an air-cooled refrigerator including an air duct for communicating the storage compartment 10a and the refrigerating compartment 10b, and an air supply fan 60 for driving air to flow (see fig. 2 b).

Preferably, referring to fig. 2a and 2b, the duct includes an air supply duct 510, an air return duct 520, a plurality of air supply ports 5101, and an air return port 5201. Wherein, the air supply duct 510 is used for introducing air from the refrigerating compartment 10b, that is, air flows from the refrigerating compartment 10b to the air supply duct 510; a plurality of air supply ports 5101, which communicate the air supply duct 510 with the storage compartment 10a, are exposed in the storage compartment 10 a; the return duct 520 returns air to the refrigerating compartment 10b, that is, air flows from the return duct 520 to the refrigerating compartment 10b; the air return opening 5201 is exposed in the storage compartment 10a, and communicates the storage compartment 10a with the air return duct 520. When the refrigerating system operates, under the driving of the fan 60 (at this time, the fan 60 operates), cold air in the refrigerating compartment 10b enters the air supply duct 510 until entering the storage compartment 10a through the air supply port 5101, then air in the storage compartment 10a enters the air return duct 520 through the air return port 5201, and finally returns to the refrigerating compartment 10b from the air return duct 520; the cooling of the storage compartment 10a is realized by the circulation.

In this embodiment, the width of the storage compartment 10a in the front-rear direction is much smaller than the width in the left-right direction, the air blowing port 5101 is disposed at the front upper portion of the storage compartment 10a, and the air return port 5201 is disposed at the rear of the storage compartment 10a. As such, when the refrigeration system is operated, air in the air supply duct 510 enters the front upper portion of the storage compartment 10a through the air supply port 5101 under the driving of the fan 60 as shown by the arrow in fig. 2b, and then cold air flows backward toward the rear of the storage compartment 10a at the front upper portion of the storage compartment 10a until it enters the return duct 520 from the return air port 5201. Thus, in the embodiment, by arranging the air supply at the upper front part of the storage compartment 10a and the air return at the rear part, on one hand, the cooling efficiency in the storage compartment 10a can be enhanced, and the cold flow unsmooth caused by too far distance between the air supply opening 5101 and the air return opening 5201 is avoided, so that the temperature difference at each part in the storage compartment 10a can be reduced; on the other hand, when the front end of the door 2 pivots upward to open the storage compartment 10a, the air blown out from the air blowing port 5101 flows from the front of the storage compartment 10a to the rear, so that a front-to-rear air curtain is formed at an upper opening of the storage compartment 10a, thereby preventing hot air in the external environment from entering the storage compartment 10a in a large amount to cause severe temperature fluctuation of the storage compartment 10a, and the air curtain is not blown to a user in front of the refrigerator 100 to avoid discomfort of the user; meanwhile, when the cold air of the air curtain blows to the rear part of the refrigerator 100, the cold air is blocked by the door body 2 and enters the storage compartment 10a, so that the cold energy loss is avoided, and the energy consumption of the refrigerator 100 is reduced.

Further, a plurality of air supply ports 5101 are arranged close to the upper opening of the storage compartment 10a, the air supply ports 5101 are sequentially arranged in the left-right direction and are arranged at the same height in the vertical direction, that is, the air supply ports 5101 are approximately positioned at the same height of the refrigerator 100; the air return ports 5201 are disposed near the bottom of the storage chamber 10a, specifically, a plurality of air return ports are disposed, and are sequentially arranged along the left-right direction. In this way, an airflow from the front upper part to the rear lower part is formed in the storage compartment 10a, so that the cooling rate of the storage compartment 10a and the temperature balance of each part are favorably maintained.

In this embodiment, a plurality of air blowing ports 5101 correspond to a plurality of air return ports 5201 one to one, specifically, the number of the air blowing ports 5101 is set to be the same as that of the air return ports 5201, and the number of the air blowing ports 5101 is 5 in the example in the figure, the air blowing ports 5101 are equidistantly distributed in the left-right direction, similarly, the air return ports 5201 are also equidistantly distributed in the left-right direction, and the distance between two adjacent air blowing ports 5101 is equal to the distance between two adjacent air return ports 5201. As described above, when the air return opening 5201 of the present embodiment is at the same height as the air supply opening 5101, the air return opening 5201 and the air supply opening 5101 corresponding thereto face each other in the front-rear direction. Of course, in the modified embodiment, the plurality of blowing ports 5101 and the plurality of return ports 5201 are not limited to necessarily one-to-one correspondence.

Preferably, referring to fig. 2b, each air supply opening 5101 is inclined obliquely upward from the air supply duct 510 toward the storage compartment 10a, so that air in the air supply duct 510 is blown into the storage compartment 10a obliquely upward from the air supply opening 5101, and further, the air can flow backward and downward along the door body 2 when the door body 2 is closed, thereby further ensuring temperature equalization in the storage compartment 10a, and the air is blown obliquely upward toward the door body 2 when the door body 2 is opened, so that the air curtain is formed while preventing the door body 2 from being condensed.

In detail, the refrigerator 100 includes a blowing cover 53 defining a blowing port 5101, the blowing cover 53 having an upper guide plate 532 defining an upper boundary of the blowing port 5101 and a lower guide plate 531 defining a lower boundary of the blowing port 5101, and both the upper guide plate 532 and the lower guide plate 531 are disposed to be inclined obliquely upward from the blowing duct 510 toward the storage compartment 10a. When the air passes through the air blowing port 5101, the air is blown obliquely upward into the storage compartment 10a by the guide of the upper guide plate 532 and the lower guide plate 531. Of course, in a modified embodiment, only the upper guide plate 532 or only the lower guide plate 531 may be provided, that is, the blowing port 5101 inclined obliquely upward from the blowing duct 510 toward the locker room 10a may be defined.

Preferably, the cooler 100 includes a control system and a door sensor. The door body sensor is used for sensing the opening state and the closing state of the door body 2, and can be specifically set as a distance sensor, a pressure sensor, a touch sensor and the like; the control system is connected with the door sensor and the fan 60, when the door sensor senses the opening state of the door 2, the control system controls the fan 60 to operate to drive air to circularly flow along the refrigerating compartment 10b, the air supply duct 510, the storage compartment 10a and the air return duct 520, and then the air curtain blown out from the air supply opening 5101 is formed when the door 2 is opened.

In this embodiment, the refrigerator 100 further includes an air duct plate for defining the air duct, and the air duct plate may include an air duct plate 51 for defining the air duct 510 and a return air duct plate 52 for defining the return air duct 520.

Wherein, the air duct plate 51 is buckled on the front side wall 111, and the air duct 510 is enclosed by the air duct plate 51 and the front side wall 111; the air duct 510 and the refrigerating compartment 10b meet at the front side wall 111, so that the cool air in the refrigerating compartment 10b enters the air duct 510 at the front side wall 111 and then flows along the air duct 510 (i.e., between the front side wall 111 and the air duct plate 51) to the air supply opening 5101.

The return air duct plate 52 is buckled on the rear side wall 112, and the return air duct 520 is enclosed by the return air duct plate 52 and the rear side wall 112; the return duct 520 and the refrigeration compartment 10b meet at the rear side wall 112 such that air entering the return duct 520 from the return air inlet 5201 flows along the return duct 520 (i.e., between the rear side wall 112 and the return duct plate 52) until it returns to the refrigeration compartment 10b at the rear side wall 112.

Further, in the present embodiment, the liner 11 is a metal liner, and referring to fig. 5a and 5b, the liner is provided with ventilation openings 1121, 1111 and channel openings 1112, 1122, and the ventilation openings 1121, 1111 and the channel openings 1112, 1122 all penetrate through the liner wall of the liner 11. The air duct plate is fastened on the outer side surface of the inner container 11, that is, the air duct plate and the outer side surface of the inner container 11 surround the air duct, and the air duct is communicated with the refrigerating compartment 10b through the passage openings 1112 and 1122 and is communicated with the storage compartment 10a through the ventilation openings 1121 and 1111. So, through inciting somebody to action the wind channel board spiral-lock is in the outside of metal inner bag 11, and this structural arrangement makes the foaming mould of this embodiment forced air cooling freezer 100 can general directly cool the foaming mould of freezer, and can not cause the deformation of inner bag 11 at the foaming in-process, and then increases the commonality of foaming mould, reduction in production cost.

The ventilation opening 1111 is disposed on the front sidewall 111, penetrates the front sidewall 111 from inside to outside, and is located corresponding to the air supply opening 5101, specifically, the air supply cover 53 is fastened to the ventilation opening 1111 from the accommodating cavity 10, so that the air supply opening 5101 is formed in the air supply cover 53; the ventilation opening 1121 is disposed on the rear sidewall 112 and penetrates the rear sidewall 112 from inside to outside, and the position of the ventilation opening 1121 corresponds to the return air inlet 5201, specifically, the return air cover 54 is fastened to the ventilation opening 1121, and the return air inlet 5201 is formed in the return air cover 54. In this way, in the preferred embodiment, the arrangement of the return air cover 54 and the blowing cover 53 can achieve the guiding of the direction of the airflow at the blowing port 5101 as described above without increasing the difficulty of processing the inner container 11, and can enhance the aesthetic appearance of the storage compartment 10a. Of course, in a modified embodiment, the blowing cover 53 can be eliminated, so that the ventilation opening 1111 constitutes the blowing opening 5101; alternatively, the return air cover 54 is eliminated, and thus the ventilation opening 1121 constitutes the return air opening 5201.

In addition, a passage opening 1112 is provided on the front side wall 111 and penetrates the front side wall 111 inside and outside, so that the air blowing duct 510 and the refrigerating compartment 10b meet at the front side wall 111; and the passage opening 1122 is provided on the rear side wall 112 and penetrates the rear side wall 112 inside and outside, so that the return duct 520 and the refrigerating compartment 10b meet at the rear side wall 112.

Further, the air duct plate 51 is fastened to the outer surface of the front wall 111, and accordingly, referring to fig. 5b, the front wall 111 includes an air duct region 111a and a non-air duct region 111b connected to the air duct region 111 a. The air duct area 111a is covered by the air duct plate 51, an air duct 510 is formed between the air duct area and the inner surface of the air duct plate 51, a ventilation opening 1111 and a passage opening 1112 are opened in the air duct area 111a, and the outer surface of the air duct plate 51 is in close contact with the insulating layer 13; the intersection line between the air duct region 111a and the non-air duct region 111b is substantially as shown by a dotted line 51a in fig. 5b, the dotted line 51a substantially coincides with the peripheral edge of the air duct plate 51, and the outer side surface of the non-air duct region 111b is in close contact with the insulating layer 13.

Similarly, the return duct board 52 is fastened to the outer surface of the rear wall 112, and accordingly, referring to fig. 5a, the rear wall 112 includes a duct area 112a and a non-duct area 112b connected to the duct area 112 a. The air duct area 112a is covered by the return air duct plate 52, a return air duct 520 is formed between the return air duct area and the inner side surface of the return air duct plate 52, the ventilation opening 1121 and the passage opening 1122 are opened in the air duct area 112a, and the outer side surface of the return air duct plate 52 is in close contact with the insulating layer 13; the intersection between the ducted region 112a and the non-ducted region 112b is generally indicated by the dotted line 52a in fig. 5a, the dotted line 52a substantially coinciding with the peripheral edge of the return duct plate 52, and the outer surface of the non-ducted region 112b in close contact with the insulation 13.

In this way, in the manufacturing of the refrigerator 100, the air duct plate 51 is fastened to the front wall 111, and the air return duct plate 52 is fastened to the rear wall 112, and then the heat insulating layer 13 is formed by foaming, and the pressing force at the time of foaming increases the assembling strength of the air duct plate 51 and the inner container 11, and the air return duct plate 52 and the inner container 11.

Furthermore, in the present embodiment, except for the assembly joint position of the front sidewall 111 itself, the air duct region 111a and the non-air duct region 111b are arranged substantially in a coplanar manner; similarly, the plenum region 112a and the non-plenum region 112b are substantially coplanar, except for the location of the assembly seams of the rear sidewall 112 itself. Thus, the flatness of the front side wall 111 and the rear side wall 112 is high, and the air duct regions 111a and 112a do not need to be set as the concave-convex regions on the front side wall 111 and the rear side wall 112, so that the processing difficulty of the inner container 11 is reduced.

Preferably, referring to fig. 3 to 5b, the circumferential edges of the air duct plate 51 and the return duct plate 52 are provided with planar flanges 50, the flanges 50 are hermetically attached to the outer side surface of the inner container 11, specifically, the flanges 50 of the air duct plate 51 are attached to the outer side surface of the front side wall 111, and the flanges 50 of the return duct plate 52 are attached to the outer side surface of the rear side wall 112. Referring to fig. 8, in the present embodiment, the flange 50 and the inner container 11 are fixedly connected by a countersunk screw 55. So, through the setting of countersunk head screw 55, can strengthen the joint strength between wind channel board and the inner bag 11 to it is convenient the location when the wind channel board assembles on to the inner bag 11.

Although the position of the countersunk screw 55 between the flange 50 of the return air duct plate 52 and the rear side wall 112 is shown in fig. 8, it can be understood that, in the present embodiment, the structure of the countersunk screw 55 between the flange 50 of the supply air duct plate 51 and the front side wall 111 is the same as that shown in fig. 8, and thus, the description thereof is omitted.

Preferably, the countersunk screw 55 is only disposed at the first bladder wall portion, that is, the flange 50 and the first bladder wall portion are fixedly connected by the countersunk screw 55, while the flange 50 and the second bladder wall portion are not fixedly connected by the countersunk screw 55, but may be adhesively connected by a sealing foam, for example, the sealing foam is disposed on the inner side surface of the flange 50 to be adhesively fixed on the second bladder wall portion. Thus, when the cover plate 4 is installed in the accommodating cavity 10, the countersunk head screws 55 are not exposed in the storage compartment 10a, so that the aesthetic appearance of the refrigerator 100 is enhanced, and the storage compartment 10a is prevented from storing dirt.

Further, referring to fig. 5a and 8, in this embodiment, the inner container 11 is provided with a concave and convex counter bore 561, the counter bore 561 penetrates the first container wall portion of the inner container 11 from inside to outside, is located in the refrigeration compartment 10b, and is concave from the inner side surface of the inner container 11 and convex from the outer side surface of the inner container 11. The inner side surface of the flange 50 (i.e., the side close to the liner 11) is provided with a recessed fastening hole 562 matching with the counter bore 561, the fastening hole 562 is recessed from the inner side surface of the flange 50, and the counter bore 561 is embedded in the fastening hole 562. The tip of the grub screw 55 is fitted into the fastening hole 562 after passing through the countersink 561, and the head of the grub screw 55 is embedded in the countersink 561. So, when countersunk head screw 55 fixes turn-ups 50 and inner bag 11, counter bore 561 is equivalent to the structure for the location arch, and fastening hole 562 is then equivalent to the structure for positioning groove, and the two mutually supports, can be right the position between wind channel board and the inner bag 11 is fixed a position, makes things convenient for the fast assembly of freezer 100.

Of course, in a modified embodiment, the counterbore 561 may be modified to be through the flange 50 and be recessed and protruding, and the corresponding fastening hole 562 may be modified to be recessed in the outer surface of the liner 11; or, other separate positioning grooves and positioning protrusions embedded in the positioning grooves are additionally arranged to position the air duct plate and the inner container 11.

Further, as shown in fig. 8, the fastening hole 562 is a blind hole structure separated from the outer surface of the flange 50, that is, the fastening hole 562 is recessed from the inner surface of the flange 50 away from the liner 11, but does not penetrate through the outer surface of the flange 50; the tips of the countersunk-head screws 55 are arranged in the blind-hole structure and can be screwed into one another in a fastening manner. In this way, after the air duct board is fixedly installed by the countersunk screw 55, the fastening hole 562 is provided in the blind hole structure rather than the through hole in the process of forming the insulating layer 13 by foaming, so that it is possible to prevent the foaming material from overflowing through the fastening hole 562 to the inside of the inner tub 11.

Furthermore, the fastening hole 562 is provided with a horn mouth part with the inner diameter gradually decreasing from inside to outside, and the counter bore 561 is embedded into the horn mouth part, so that when the countersunk head screw 55 fastens and connects the air duct plate and the liner 11, the counter bore 561 can gradually compress the horn mouth part of the fastening hole 562 to enhance the strength of the connection structure.

In one embodiment, referring to fig. 4, the side cover 42 is provided with an auxiliary air supply opening 421, the auxiliary air supply opening 421 is exposed in the storage compartment 10a, and the refrigeration compartment 10b is communicated with the storage compartment 10a through the auxiliary air supply opening 421, so that under the driving of the fan 60 (when the fan 60 is operated), cold air in the refrigeration compartment 10b can enter the storage compartment 10a through the auxiliary air supply opening 421, and the temperature of the storage compartment 10a is reduced. So, combining the setting of aforementioned supply-air outlet 5101, storage compartment 10a both can be through a plurality of supply-air outlet 5101 air intakes of anterior, can realize two-way air inlet through the supplementary supply-air outlet 421 air inlet of side again, does benefit to the temperature homogeneity that realizes storage compartment 10a.

Further, the air supply ports 5101 are vertically higher than the auxiliary air supply port 421, and the auxiliary air supply port 421 is specifically located at the bottom of the storage compartment 10a, so that the temperature difference between the upper portion and the lower portion of the storage compartment 10a is reduced.

Preferably, the distance from the auxiliary air blowing port 421 to the front side wall 111 is shorter than the distance to the rear side wall 112, so that the auxiliary air blowing port 421 can additionally blow air to the front lower region of the locker room 10a distant from the plurality of air blowing ports 5101. However, in a modified embodiment, if the plurality of air blowing ports 5101 are located behind the storage compartment 10a and the air return port 5201 is located in front of the storage compartment 10a, the auxiliary air blowing port 421 is preferably provided at a distance from the front side wall 111 greater than that from the rear side wall 112.

Based on the arrangement of the air outlets 5101 at the upper portion of the storage compartment 10a and the auxiliary air supply 421 at the lower portion of the storage compartment 10a, in an embodiment, the control system can perform a series of controls on the operation of the refrigerator 100 to realize different air supply modes. That is, the present invention also provides an operation control method of the refrigerator 100.

Specifically, in one embodiment, freezer 100 further includes a temperature sensor disposed in storage compartment 10a and configured to sense a temperature T of storage compartment 10a. The control system is also connected with the temperature sensor and receives the temperature T from the temperature sensor; meanwhile, the control system is also connected with the refrigerating system to control the starting or closing of the refrigerating system.

In one embodiment, the control system is specifically configured to:

after a starting instruction of the compressor 31 is acquired, the compressor 31 and the fan 60 are controlled to operate, and whether the temperature T reaches a first temperature threshold value T1 or more is judged;

as can be known from the foregoing, when the compressor 31 is started and operated, the refrigerant flows along the circulation loop, and the refrigeration system starts to refrigerate, and as can be seen from the foregoing, the obtaining of the start instruction generally represents that the refrigerator 100 needs to cool the storage compartment 10a, for example, when the temperature T reaches the startup temperature Ton or when the shutdown duration of the compressor 31 reaches the preset time, the start instruction of the compressor 31 is obtained;

the first temperature threshold T1 is higher than the boot temperature Ton;

if the temperature T is judged to be higher than the first temperature threshold T1, the temperature T is inevitably higher than the startup temperature Ton, which represents that the inside of the storage compartment 10a is in an abnormally high temperature state when the compressor 31 is started, at this time, a first air supply path from the fan 60 to the storage compartment 10a through the plurality of air supply ports 5101 is conducted, and a second air supply path from the fan 60 to the storage compartment 10a through the auxiliary air supply port 421 is cut off, that is, cold air at the fan 60 can be blown to the storage compartment 10a through the plurality of air supply ports 5101 and cannot be blown to the storage compartment 10a through the auxiliary air supply port 421, so that a large amount of air can be quickly supplied to the upper part of the storage compartment 10a without supplying air to the lower part, and the first air supply path and the second air supply path are conducted simultaneously until the temperature T is reduced to the second temperature threshold T2, that the plurality of air supply ports 5101 and the auxiliary air supply path to the storage compartment 10a simultaneously until the temperature T is reduced to the shutdown temperature Toff;

if it is determined that the temperature T does not reach the first temperature threshold T1, it represents that the inside of the storage compartment 10a when the compressor 31 is started is not in an abnormally high temperature state although the temperature needs to be lowered, and at this time, the first air supply path and the second air supply path are turned on, so that the air supply ports 5101 and the auxiliary air supply ports 421 simultaneously supply air to the storage compartment 10a.

In this way, in the configuration of the control system or the operation control method of the refrigerator 100 in an embodiment, when the compressor 31 operates, the air supply states of the air supply ports 5101 and the auxiliary air supply port 421 are controlled according to whether the temperature T of the storage compartment 10a reaches the first temperature threshold T1, so that when the storage compartment 10a is in an abnormally high temperature state, a large amount of air is discharged to the upper part of the storage compartment 10a with a higher temperature through the air supply ports 5101, and thus the temperature in the storage compartment 10a is quickly lowered from top to bottom, and stored articles are prevented from being rotted and deteriorated due to a high temperature state for a long time; when the storage compartment 10a is not in an abnormal high-temperature state but in a normal refrigeration state, air is simultaneously supplied to the upper portion and the lower portion of the storage compartment 10a through the plurality of air supply ports 5101 and the auxiliary air supply ports 421, so that the temperature of the upper portion and the lower portion of the storage compartment 10a is uniform, the cooling rate is increased, and energy is saved and consumption is reduced.

Further, in yet another embodiment, the control system may be further configured to: when the door sensor senses the opening state of the door 2 in the operation of the fan 60, the first air supply path and the second air supply path are conducted, so that air is supplied to the upper portion and the lower portion of the storage compartment 10a through the air supply ports 5101 and the auxiliary air supply ports 421 in the opening state of the door 2, on one hand, as described above, an air curtain is formed through the air supply ports 5101 to prevent a large amount of external hot air from entering the storage compartment 10a, and meanwhile, air is supplied through the auxiliary air supply ports 421 to reduce the air volume at the air supply ports 5101, so that the air pressure born by a human body during taking and placing articles is reduced, and the uncomfortable feeling of the human body is avoided; furthermore, the wind pressure at the plurality of air supply ports 5101 can be reduced, thereby reducing airflow noise. In addition, in combination with the structural arrangement of the fan 60 (for example, the arrangement of the secondary air outlet 6202 described later), when the door body 2 is opened, the air is simultaneously supplied through the multiple air supply outlets 5101 and the auxiliary air supply outlet 421, so that the air pressure of the fan 60 can be reduced, and the airflow noise in the fan 60 can be further reduced.

Of course, in a variant embodiment, the control system may also be configured to: when the door sensor senses the open state of the door 2 during the operation of the fan 60, the first air supply path is cut off and the second air supply path is conducted, so that air is supplied to the storage compartment 10a through the auxiliary air supply port 421 instead of the air supply ports 5101, and compared with the embodiment that the air is simultaneously supplied to the storage compartment 10a through the air supply ports 5101 and the auxiliary air supply ports 421, the embodiment can obtain a more excellent silencing effect despite that the air curtain effect when the door 2 is opened is cancelled, and can also avoid the occurrence of the condition that too much cold air supplied by the air supply ports 5101 flows to the outside from the cabinet opening 14, so that energy is saved and consumption is reduced.

Additionally, in one embodiment, the cooler 100 also includes a body sensor. The human body sensor is arranged outside the refrigerator body 1 or outside the door body 2 and used for sensing human body signals in an external preset area of the refrigerator 100. That is, when a human body enters an external preset area of the refrigerator 100, for example, within 0.5m near the front of the refrigerator 100, the human body sensor senses the human body signal.

The human body sensor may be specifically configured as an infrared sensor, an image collector, or other devices known in the art that can be used for human body sensing.

The control system may be further connected to the body sensor and receive the body signal from the body sensor. The specific configuration can be as follows: when the human body sensor senses the human body signal during the operation of the blower 60, the first air supply path and the second air supply path are turned on, or the first air supply path is cut off and the second air supply path is turned on. In this way, similar to the above, when a human body approaches the door 2, the air is supplied to the upper and lower parts of the storage compartment 10a through the plurality of air supply ports 5101 and the auxiliary air supply ports 421, so that an air curtain effect can be formed and air flow noise can be reduced; and only through the auxiliary air supply port 421 instead of the plurality of air supply ports 5101, the air curtain effect is cancelled, but a more excellent silencing effect can be obtained, the cold energy is prevented from leaking, and the energy is saved and the consumption is reduced.

Further, the fan 60 and the evaporator 33 are arranged side by side in the front-rear direction, specifically, in the present embodiment, the air supply duct 510 and the refrigerating compartment 10b meet at the front side wall 111, and accordingly, the fan 60 is arranged between the evaporator 33 and the front side wall 111, that is, the evaporator 33 is relatively backward and the fan 60 is relatively forward in the refrigerating compartment 10b. Of course, in the modified embodiment, if the air duct 510 and the refrigerating compartment 10b meet at the rear sidewall 112 (i.e. when the air duct plate 51 is fastened to the rear sidewall 112), the fan 60 is modified to be disposed between the evaporator 33 and the rear sidewall 112.

In one embodiment of the present invention, the fan 60 is arranged obliquely. In particular, the fan 60 is provided as a centrifugal fan, which comprises an impeller 61 and a volute 62 surrounding the impeller 61, see fig. 2b and 9 a. The volute 62 encloses a guide air cavity 620, and the impeller 61 is arranged in the guide air cavity 620; the impeller 61 rotates about a pivot T which is at an acute angle to the vertical, i.e. the pivot T is neither horizontal nor vertical. So, avoid leading to the refrigeration cabin 10b too high because of the too big span of the vertical direction of fan 60, and then promote the plot ratio of freezer 100, also avoid simultaneously because of the too big space of arranging of compressor evaporator 33 of the span of fan 60 horizontal direction, and then guarantee great refrigeration rate, can also reduce fan 60's air supply pressure and air current noise in addition.

Preferably, the pivot T has an acute angle of 45 DEG or more with the vertical direction. With the arrangement, smooth air supply of the fan 60 can be ensured, and air volume loss is reduced.

Further, the pivot T extends obliquely from bottom to top perpendicular to the left-right direction and toward the evaporator 33, and particularly in the embodiment of the drawing in which the blower 60 is behind the front evaporator 33, the pivot T extends obliquely from front to top and perpendicular to the left-right direction, although in the modified embodiment in which the blower 60 is in front of the rear evaporator 33, the pivot T extends obliquely from rear to top and perpendicular to the left-right direction, without departing from the technical spirit of the present invention.

Referring to fig. 2b and 9a, the volute 62 specifically includes a first end plate 621, a second end plate 622, and a shroud 623. The first end plate 621 and the second end plate 622 are respectively located on both sides of the impeller 61 in the axial direction (i.e., the extending direction of the pivot T), and are disposed substantially opposite to each other; the first end plate 621 is provided with an air inlet 6210; the enclosing plate 623 is located between the first end plate 621 and the second end plate 622, and surrounds the impeller 61 in the radial direction, and is provided with an air outlet 6201, and the air outlet 6201 is in butt joint with the air supply duct 510. In this way, when the fan 60 operates, the impeller 61 rotates around the pivot T, and under the driving of the impeller, air enters the guiding air cavity 620 from the air inlet 6201, and finally exits the guiding air cavity 620 through the air outlet 6201 and enters the air supply duct 510.

As can be seen from the foregoing, the air supply duct 510 and the refrigerating compartment 10b meet at the front side wall 111 in front of the refrigerating compartment 10b, and particularly meet at the passage opening 1112 on the front side wall 111, that is, the passage opening 1112 on the front side wall 111 can be regarded as an outlet of the refrigerating compartment 10b and an inlet of the air supply duct 510. Further, referring to fig. 2b, the air outlet 6201 extends obliquely upward away from the pivot T, specifically, obliquely upward and forward away from the pivot T, so that when the fan 60 is operated, air enters the air duct 510 through the air outlet 6201 obliquely upward under the driving of the fan, thereby ensuring smooth air supply, small air loss, and avoiding airflow noise.

Referring to fig. 2b and fig. 9a to 9c, the front end 621a of the first end plate 621 defines an upper boundary of the air outlet 6201, the front end 622a of the second end plate 622 defines a lower boundary of the air outlet 6201, and the front end 621a of the first end plate 621 and the front end 622a of the second end plate 622 are both arranged in a planar plate structure perpendicular to the pivot T. In addition, the enclosing plate 623 includes a first plate portion 623a defining a left boundary of the air outlet 6201 and a third plate portion 623c defining a right boundary of the air outlet 6201, the third plate portion 623c and the first plate portion 623a are each provided in a planar plate structure, and the third plate portion 623c extends in parallel to the front-rear direction, and the first plate portion 623a extends from the right rear direction to the left front direction. Of course, the illustration is only a preferred embodiment, and the configuration of the third plate portion 623c and the first plate portion 623a, the front end portion 621a of the first end plate 621, and the front end portion 622a of the second end plate 622 is not limited thereto.

In an embodiment, the spiral casing 62 further has an air outlet 6202, that is, the spiral casing 62 has two air outlets, wherein the air outlet 6201 is used as a main air outlet, and the air outlet 6202 is used as a secondary air outlet. That is, when the blower 60 operates, under the driving of the blower, air may enter the air duct 510 through the air outlet 6201 in an obliquely upward direction, and may exit the air guide chamber 620 through the air outlet 6202. Preferably, the shroud 623 comprises a volute tongue 6230 located at the air outlet 6201, the volute tongue 6230 defining a minimum distance from the shroud 623 to the pivot T, i.e. the volute tongue 6230 defining a minimum distance from the shroud 623 to an outer edge of the impeller 61 (the outer edge position can be seen by the dashed line m in fig. 9 c), i.e. the volute tongue 6230 defining a minimum radius of the volute 62, and the air outlet 6202 opening at the volute tongue 6230. Thus, the arrangement of the air outlet 6202 of the volute 62, on one hand, is matched with the air outlet 6201 to realize two paths of air outlet of the diversion air cavity 620, and the optimized configuration of the air volume is realized, and the air volume is distributed in a manner that the air outlet volume of the air outlet 6201 is greater than that of the air outlet 6202, so that the uniform temperature of each part in the storage compartment 10a is favorably realized; on the other hand, the position of the air outlet 6202 on the volute 62 reduces the airflow noise of the fan 60.

Preferably, the air outlet 6202 communicates with the auxiliary air outlet 421, that is, in the preferred embodiment, the auxiliary air outlet 421 introduces an air flow from the air guiding cavity 620 through the air outlet 6202, so that noise can be reduced, and air distribution can be optimized. In addition, as can be seen from the above description, the air outlet 6201 is connected to the air duct 510 in an upward direction in an oblique manner along the front-back direction, and the air outlet 6202 is disposed toward the side cover plate 1602 along the left-right direction, so that two air ducts perpendicular to each other in the front-back direction and the left-right direction are realized through the arrangement of the air outlet 6201 and the air outlet 6202, an air supply path is optimized, air volume loss is reduced, and flowing noise caused by unsmooth air duct is further reduced.

Preferably, the control system includes a first electrically powered damper and a second electrically powered damper. The first electric air door is movably disposed at the air outlet 6201 to connect or cut off the first air path, and it can be understood that when the first electric air door cuts off the first air path, the cold air at the impeller 61 cannot enter the air supply duct 510 through the air outlet 6201; the second electric air door is movably disposed at the air outlet 6202 to connect or cut off the second air path, and it can be understood that when the second electric air door cuts off the second air path, the cold air at the impeller 61 cannot leave the air guiding cavity 620 through the air outlet 6202. In this way, the first and second electric dampers are disposed from the volute 62, so that noise caused by wind pressure can be avoided, for example, when the first air path is cut off, the cold air in the guiding air cavity 620 can be prevented from erroneously rushing into the first air path to form a very large wind pressure in the first air path, so as to avoid noise or turbulent airflow caused by the wind pressure.

Further, the shroud 623 further includes a second plate portion 623b curvedly arranged around the pivot T, the second plate portion 623 having a first end 623b1 meeting the third plate portion 623c and a second end 623b2 defining a boundary of the outlet 6202 in the circumferential direction of the pivot T, the second plate portion 623b being gradually distant from the pivot T from the first end 623b1 to the second end 623b2 (i.e., the radius is gradually increased).

In this embodiment, the air outlet 6202 extends through the tongue 6230. Alternatively, the air outlet 6202 may be opened between the second end 623b2 of the second plate portion 623 and the tongue tip 6230a of the tongue 6230, and a central angle between the air outlet 6202 and the tongue tip 6230a of the tongue 6230 is not greater than 5 °, that is, a first radius line is constructed from a boundary of the air outlet 6202 near the tongue 6230 to the pivot T, and a second radius line is constructed from the tongue tip 6230a of the tongue 6230 to the pivot T, with the pivot T as a center, and the central angle between the two radius lines is the central angle. The tongue tip 6230a is positioned at a position on the volute tongue 6230 where the distance to the pivot axis T is minimum.

In this embodiment, the shroud 623 further includes a connecting plate 623d connecting the second end 623b2 of the second plate portion 623b and the volute tongue 6230, and the connecting plate 623d defines an upper boundary of the air outlet 6202, and in a variation, may define a lower boundary of the air outlet 6202, or may define both the upper boundary of the air outlet 6202 and the lower boundary of the air outlet 6202. In the circumferential direction of the pivot T, as shown by a projected broken line 623da of the connecting plate 623d in fig. 9c, the connecting plate 623d is provided as a curved plate gradually approaching the pivot T (i.e., gradually decreasing in radius) from the second end 623b2 to the volute tongue 6230. Of course, in a modified embodiment, the connecting plate 623d may be eliminated such that the upper boundary of the outlet opening 6202 is defined by the first end plate 621.

In other words, considering the second plate portion 623b and the connecting plate 623d as complete curved plate portions in the enclosing plate 623, the curved plate portions extend around the pivot T from the tongue 6230 to the third plate portion 623c in the circumferential direction of the pivot T and gradually get away from the pivot T, and the air outlet 6202 opens in the curved plate portions and is disposed near the tongue 6230.

Further, the first end plate 621 and the second end plate 622 are formed separately, so that the processing and forming of the volute 62 can be facilitated, and the structural assembly of the fan 60 itself can also be facilitated.

The shroud 623 may be integrally formed with either or both of the first end panel 621 and the second end panel 622, that is, the shroud 623 may be integrally formed with the first end panel 621, may be modified to be integrally formed with the second end panel 622, or may have a portion integrally formed with the first end panel 621 and another portion integrally formed with the second end panel 622; of course, the shroud 623 is separately formed and assembled to the first and

second end panels

621, 622. Such variations do not depart from the technical spirit of the invention.

In the preferred embodiment of the drawings, the enclosing plate 623 is integrally formed with the first end plate 621, so that the assembly efficiency can be improved and the sealing property can be ensured.

Further, the refrigerator 100 includes a fan support 63 fixedly assembled with the inner container 11, and the second end plate 622 is integrally formed on the fan support 63, so that the impeller 61, the enclosing plate 623 and the first end plate 621 are all fixedly supported on the fan support 63, which not only facilitates the overall installation of the fan 60, but also reduces the vibration noise generated during the operation of the fan 60.

Preferably, the fan bracket 63 has a shielding plate 631 surrounding the shielding plate 623, and the shielding plate 623 is inserted into the inner side (i.e. the side close to the pivot T) of the shielding plate 631 and has an outer side surface closely attached to the inner side surface of the shielding plate 631, so that the first end plate 621 and the shielding plate 623 can be fixed, the sealing performance at the shielding plate 623 can be ensured, the air flow in the guide air cavity 620 is prevented from leaking at the joint between the shielding plate 623 and the second end plate 632, the air supply efficiency is improved, and the noise is reduced.

In one embodiment, the blower bracket 63 is fastened to the inner container wall of the inner container 11 by a suspension member 635, and in this embodiment, the blower bracket 63 is fastened to the front sidewall 111 by the suspension member 635. It should be understood that the liner 11 liner wall tightly assembled with the blower bracket 63 through the suspension member 635 may be alternatively implemented as another liner 11 liner wall besides the front sidewall 111, for example, in a variation embodiment in which the position of the blower 60 is not changed, the blower bracket 63 may be alternatively implemented as tightly assembled with the bottom wall 115 or with the step sidewall 1162 through the suspension member 635, in a variation embodiment in which the position of the blower 60 is changed to be between the evaporator 33 and the rear sidewall 112, the blower bracket 63 may be alternatively implemented as tightly assembled with the bottom wall 115 or with the step sidewall 1162 or with the rear sidewall 112 through the suspension member 635, in a variation embodiment in which the position of the cooling compartment 10b is changed to be at the lower left portion of the accommodating chamber 10, the blower bracket 63 may be alternatively implemented as tightly assembled with the bottom wall 115 or with the left sidewall 113 or with the rear sidewall 112 or with the front sidewall 111 through the suspension member 635, and the like, and these variations do not depart from the present technical spirit.

Next, the assembly of the blower holder 63 and the inner wall of the inner container 11 according to the present embodiment will be described in detail with reference to the accompanying examples.

Referring to fig. 9a to 10, the blower bracket 63 includes a retention plate 632, a locking portion 633 formed on the retention plate 632, and a mounting guide groove 634 opened in the retention plate 632.

The position-retaining plate 632 has a first surface 6321 abutting against the inner wall of the inner container 11 and a second surface 6322 opposite to the first surface 6321 along a first direction perpendicular to the inner wall of the inner container 11 to which the first surface 6321 abuts, in this embodiment, the first surface 6321 abuts against the front sidewall 111, the first direction is a front-back direction and a vector direction from front to back, and of course, if the first surface 6321 abuts against the bottom wall 115, the step sidewall 1162/the left sidewall 113 in the modified embodiment, the first direction is a vertical direction and a left-right direction, respectively, as described above.

The mounting guide groove 634 extends along a third direction, the third direction is perpendicular to the first direction, in this embodiment, the third direction is a vertical direction and a vector direction from bottom to top; the locking portions 633 protrude from the second surface 6322 along the first direction, which is located at two sides of the mounting guide groove 634 in the second direction, i.e., the left-right direction in this embodiment.

The suspension member 635 is fixed on the wall of the liner 11 and has a suspension post 6351 and a boss 6352. The hanging post 6351 protrudes out of the inner container wall of the inner container 11, which is attached by the first surface 6321, in this embodiment, the front side wall 111 protrudes from the front to the back, and the hanging post 6351 fits in the installation guide groove 634 and can move along the installation guide groove 634, that is, can move in the installation guide groove 634 along the third direction; the protrusion 6352 is located at the protruding end of the suspension post 6351 (i.e. the end of the bladder 11 far from the wall of the bladder that the first surface 6321 is attached to, and in this embodiment is the rear end), and protrudes radially beyond the suspension post 6351. When the blower bracket 63 is installed in the accommodating cavity 10, the hanging column 6351 moves upwards in the installation guide groove 634 until reaching the installation position of the blower bracket 63, and at this time, the boss 6352 abuts against the locking portion 633 so that the first surface 6321 of the retention plate 632 tightly abuts against the liner wall of the liner 11, so that the blower bracket 63 can be tightly installed on the liner 11; conversely, when the blower bracket 63 needs to be detached from the wall of the inner container 11, the hanging post 6351 moves downward in the mounting guide groove 634, the boss 6352 disengages from the locking portion 633, and the blower bracket 63 disengages from its mounting position and is finally removed from the inner container 11.

Referring to fig. 9d, the locking portion 633 comprises a guiding inclined surface 6331, and the distance from the guiding inclined surface 6331 to the second surface 6322 gradually increases along the third direction, in this embodiment, the distance from the guiding inclined surface 6331 to the second surface 6322 gradually increases from bottom to top, so that when the blower bracket 63 is installed into the accommodating cavity 10, the boss 6352 vertically moves along the guiding inclined surface 6331, so that the first surface 6321 of the positioning plate 632 is attached to the liner wall of the liner 11 more and more tightly, and is finally locked on the liner 11.

Preferably, the locking portion 633 further comprises a locking surface 6332, the locking surface 6632 is connected to the upper end of the guide slope 6331, which is parallel to the retention plate 632, and the boss 6352 is pressed against the locking surface 6332 at the front end when the blower bracket 63 is installed to its installation position into the accommodation chamber 10.

Further, the width of the mounting guide groove 634 gradually decreases along the third direction, in this embodiment, the width of the mounting guide groove 634 in the left-right direction gradually decreases from bottom to top, so that when the fan support 63 is mounted into the accommodating chamber 10, the hanging post 6351 can easily enter the mounting guide groove 634, and the fan support 53 can be gradually and accurately aligned in the left-right direction along with the movement of the hanging post 6351 along the mounting guide groove 634.

The suspension member 635 of the present embodiment is detachably attached to the wall of the inner bag 11. Preferably, referring to fig. 5a, the liner wall of the liner 11 is provided with a mounting through hole 1113; in match, referring to fig. 9a and 10, the suspension member 635 includes a first locking clip portion 6353 and a second locking clip portion 6354, and the first locking clip portion 6353 and the second locking clip portion 6354 both protrude out of the suspension post 6351 in the radial direction and are disposed at intervals in the first direction, i.e., the front-rear direction; the suspension member 635 is fixed in the installation through hole 1113, the first locking clamp part 6353 and the second locking clamp part 6354 are separated from the inner wall and the outer wall of the liner 11, and the first locking clamp part 6353 and the second locking clamp part 6354 clamp the liner wall of the liner 11 together, so that the suspension member 635 is fixedly installed on the liner wall of the liner 11.

Further, referring to fig. 5a, the wall of the mounting through hole 1113 has a notch 11130. Accordingly, referring to fig. 9a, the first clip portion 6353 is configured to match the shape of the indentation 11130. The suspension member 635 has an attachment/detachment position and a lock position: in the attaching and detaching position and the lock position, the angle of the suspension member 635 around the central axis of the mounting through-hole 1113 is different, that is, the suspension member 635 can rotate around the central axis of the mounting through-hole 1113 to change between the attaching and detaching position and the lock position. When the inner container 11 is in the detachable position, the first locking part 6353 is aligned with the notch 11130 and can move on the inner side and the outer side of the inner container wall of the inner container 11 through the mounting through hole 1113; in the locking position, the first locking clip portion 6353 is dislocated from the notch 11130 in the circumferential direction of the mounting through hole 1113, and the second locking clip portion 6353 cannot pass through the mounting through hole 1113.

Thus, when the suspension member 635 is mounted on the liner wall of the liner 11, the suspension member 635 is located at the mounting and dismounting position, the first locking clamp 6353 passes through the mounting through hole 1113 until the first locking clamp 6353 and the second locking clamp 6354 are separated from the inner side and the outer side of the liner wall of the liner 11, at this time, the suspension member 635 is rotated to the locking position, so that the first locking clamp 6353 is dislocated from the notch 11130, and the first locking clamp 6353 and the second locking clamp 6354 clamp the liner wall of the liner 11 together.

In this embodiment, the hole wall of the installation through hole 1113 has two notches 11130 oppositely arranged, that is, the two notches 11130 are at two ends of the diameter of the installation through hole 1113; in cooperation therewith, the suspension member 635 has two first locking portions 6353 disposed opposite to each other at both ends of the diameter of the suspension post 6351. When the first locking portions 6353 are located at the detachable position, the two notches 11130 are aligned with the two first locking portions 6353 one by one; when the first locking portions 6353 are located at the inner wall of the inner container 11 between the two openings 11130, respectively. In this manner, the suspension member 635 may be rotated by an angle not equal to 180 ° around the center axis of the mounting through hole 1113, for example, may be rotated by 90 ° to change between the detached position and the locked position.

Further, the second locking clip portion 6354 and the first locking clip portion 6353 are arranged in sequence along the first direction, that is, the first locking clip portion 6353 is relatively rearward, and the second locking clip portion 6354 is relatively forward, and the first locking clip portion 6353 is located between the protrusion 6352 and the second locking clip portion 6354. Correspondingly, when the suspension member 635 is installed, the suspension member 635 is located at the dismounting position (that is, the first locking clip part 6353 is aligned with the notch 11130), the boss 6352, the hanging pillar 6352 and the first locking clip part 6353 move from the outer side of the liner wall of the liner 11 to the inner side of the liner wall of the liner 11 through the installation through hole 1113, and then the suspension member 635 rotates by an acute angle, a right angle or an obtuse angle (preferably, a 90 ° right angle), and at this time, the suspension member 635 is located at the locking position, the first locking clip part 6353 tightly abuts against the inner side surface of the liner wall of the liner 11, and the second locking clip part 6354 tightly abuts against the outer side surface of the liner wall of the liner 11, so that the installation of the suspension member 635 is realized, and the installation operation is simple and convenient. Of course, in an alternative embodiment, the second locking clip portion 6354 may be located between the protruding portion 6352 and the first locking clip portion 6353, so that the suspension member 635 is installed from the accommodating chamber 10 to the wall of the inner container 11.

In the present embodiment, the second locking clip 6354 is provided as a fin extending outward, preferably in a circular ring shape, but is not limited thereto, and may be in a rectangular ring shape, an elliptical ring shape, or other shapes. The second latching clip portion 6354 completely covers the mounting through-hole 1113 (including its notch 11130). In this way, the second locking clip 6354 can cooperate with the first locking clip 6353 to fix the suspension member 635 as described above, and can shield the mounting through hole 1113 on the outer side of the inner container 11 to prevent the foaming material from overflowing into the accommodating chamber 10 through the mounting through hole 1113 during the formation of the insulating layer 13.

Further, in an embodiment, the refrigerator 100 further includes a fan support insulation pad 72 located below the fan 60, the fan support insulation pad 72 is fixedly installed in the fan bracket 63, in this embodiment, the fan support insulation pad 72, the fan 60 and the fan bracket 63 form a fan module, the fan module is integrally installed and disassembled in the refrigeration compartment 10b, that is, in the manufacturing process of the refrigerator 100, the fan support insulation pad 72, the fan 60 and the fan bracket 63 are assembled into an integrally moving module, and the module can be integrally installed in the refrigeration compartment 10b through the fan bracket 63, for example, the positioning plate 632 is attached to the inner side surface of the front side wall 111 and is inserted between the evaporator 33 and the front side wall 111 from top to bottom, which is simple and convenient.

The fan supporting heat preservation pad 72 is provided with an air supply groove 720, an air supply channel is enclosed between the air supply groove 720 and the left wall plate of the fan support 63, a support opening 636 is arranged on the left wall plate of the fan support 63, the support opening 636 is abutted to an auxiliary air supply opening 421 on the side cover plate 42, and the auxiliary air supply opening 421 is communicated with an air outlet 6202 through the air supply channel. Of course, in the modified embodiment, the structure of the air blowing passage is not limited thereto.

In an embodiment, referring to fig. 2b, the refrigerator 100 further includes a thermal insulation pad 70 disposed at the bottom of the refrigerating compartment 10b, which on one hand can support the evaporator 33 and the fan 60 to adjust the heights of the evaporator 33 and the fan 60, thereby facilitating defrosting and draining of the refrigerating compartment 10b; on the other hand, the sealing performance of the forced cooling compartment 10b can be increased, cold leakage can be avoided, and it can be ensured that the air returning from the air returning duct 520 to the cooling compartment 10b can pass through the evaporator 33 as much as possible, thereby improving the heat exchange efficiency of the evaporator 33.

Specifically, the width of the insulating mat 70 in the front-rear direction is larger than the distance between the front and rear cover edges 141 and 142 in the front-rear direction, so that the sealing effect can be improved. In one embodiment, the thermal pad 70 includes at least two thermal insulation sections which are separately arranged and sequentially arranged in the front-back direction, and each of the thermal insulation sections has a width in the front-back direction which is not greater than the distance between the front cover edge 141 and the rear cover edge 142 in the front-back direction. Thus, when the heat insulation pad 70 is installed in the accommodating cavity 10 or removed from the accommodating cavity 10, the heat insulation parts are respectively assembled and disassembled, and are not interfered by the cabinet opening 14, so that the heat insulation pad is convenient to install and disassemble.

In this embodiment, the number of said heat-insulating sections is two, one being the first heat-insulating section 71 supporting the evaporator 33 underneath, and the fan-supporting heat-insulating mat 72 constituting the other heat-insulating section.

Preferably, referring to fig. 2b and 5b, the end face of the first heat-preserving section 71 connected to the fan support heat-preserving pad 72 is provided with a step structure 710, so that the first heat-preserving section 71 and the fan support heat-preserving pad 72 are connected by the step structure 710, which facilitates the forming and installation of the heat-preserving pad 70, facilitates the improvement of the sealing performance of the refrigeration compartment 10b, and avoids the low heat exchange efficiency at the evaporator 33.

In the present embodiment, the fan 60 is located in front of the evaporator 33, and accordingly, the front end face of the first heat-insulating section 71 is provided with a stepped structure 710. The fan supporting and heat insulating pad 72 is pressed on the step structure 710 from the top, so that the step supporting and heat insulating pad 72 is positioned in front of and above the step structure 710, in the installation process of the refrigerator 100, the first heat insulating sub-unit 71 is firstly arranged in the refrigeration cabin 10b, after the water-receiving aluminum disc 711 (the reference numbers refer to fig. 5a and 5 b) is fixed on the first heat insulating sub-unit 71, the evaporator 33 is installed above the water-receiving aluminum disc 711, and then the step supporting and heat insulating pad 72 is integrally inserted in front of the evaporator 33 in cooperation with the fan 60 and the fan bracket 63, so that the assembly is convenient and rapid.

In addition, the rear part of the volute 62 protrudes the fan support insulation pad 72 in the front-rear direction and extends to the upper part of the first insulation part 71, so that the defrosting water on the fan 60 is favorably dripped into the water receiving aluminum tray smoothly, and the defrosting water is prevented from seeping into the joint between the first insulation part 71 and the step support insulation pad 72 to be accumulated. In addition, the assembling relation between the first heat-insulating part 71 and the step supporting heat-insulating pad 72 can be favorable for the setting of the volute 62, and the synchronous installation of the fan modules is convenient.

In one embodiment, referring to fig. 3, 5a, 11 and 12, freezer 100 includes a defrost drain 80, a drain inlet 1522 provided in press chest side cover 152, and an evaporation pan 84 fixedly mounted within press chest 120. The defrosting drain pipe 80 communicates with the refrigerating compartment 10b and extends into the evaporating dish 84 through the drain inlet 1522. The distance h between the water outlet 830 of the defrosting drainage pipe 80 and the pressing machine cabin side cover plate 152 is larger than the distance between the defrosting drainage pipe and the right wall plate 124. That is, the defrosting drain pipe 80 enters the compressor chamber 120 from the compressor chamber side cover plate 152 and extends to the drain near the right wall plate 124 arranged opposite to the compressor chamber side cover plate 152, so that the path of the external hot air entering the refrigeration chamber 10b through the defrosting drain pipe 80 is prolonged, the external heat is prevented from entering the refrigeration chamber 10b and increasing the energy consumption of the refrigerator 100, the water outlet 830 of the defrosting drain pipe 80 is far away from the refrigeration chamber 10b, the ice blockage phenomenon can be avoided under the action of the hot air in the compressor chamber 120, and the smooth discharge of the defrosting water is ensured.

Of course, in some variant embodiments in which the press cabin 120 is modified to the lower rear or lower left portion of the tank 1, the water outlet 830 is disposed near the other wall plate of the tank 1 disposed opposite to the press cabin side cover plate 152.

Further, the distance h between the water outlet 830 of the defrosting drain pipe 80 and the press chamber side cover plate 152 is not less than 3/4 of the span L of the press chamber 120 in the left-right direction.

The inner container 11 has a drainage port 81 formed in the wall thereof, and in this embodiment, the drainage port 81 is formed in the step sidewall 1162; the defrosting drain pipe 80 is installed at the drain opening 81, and the cooling compartment 10b discharges the defrosting water into the defrosting drain pipe 80 through the drain opening 81. Specifically, referring to fig. 5a and 5b, the aluminum water pan 711 includes a drainage channel 7111 extending obliquely downward from front to back, a water collecting pan 7112 located at the back end of the drainage channel 7111, and a water outlet nozzle 7113 located at the right end of the water collecting pan 7112, wherein the water collecting pan 7112 extends obliquely downward from left to right, and the water outlet nozzle 7113 protrudes out of the water outlet 81 and extends into the defrosting drain pipe 80. In this way, when the defrosting condition is satisfied in the refrigerating compartment 10b, the control system controls the defrosting element (e.g., an electric heating wire) at the bottom of the evaporator 33 to be activated to defrost, and the defrosting water is collected by the aluminum pan 711, flows backwards and downwards along the drainage channel 7111 to the water collecting tray 7112, flows downwards and rightwards along the water collecting tray 7112 to the water outlet nozzle 7113, and is then discharged into the defrosting drain pipe 80.

Preferably, the defrosting drain pipe 80 includes a first drain pipe 82 and a second drain pipe 83 connected. The first drainage pipe 82 and the second drainage pipe 83 are separately arranged, one end (the left end in the embodiment) of the first drainage pipe 82 is installed at the drainage port 81, and specifically, the first drainage pipe can be fixedly assembled with the liner wall of the liner 11 through a buckle structure, and the other end (the right end in the embodiment) of the first drainage pipe 82 is inserted into the press cabin 120 through the drainage pipe inlet 1522; the second drain pipe 83 is at least partially configured as a corrugated pipe, the water outlet 830 of the defrosting drain pipe 80 is formed by one end (in this embodiment, the right end) of the second drain pipe 83, and the other end (in this embodiment, the left end) of the second drain pipe 83 is connected with the first drain pipe 82 at the drain pipe inlet 1522 in a sealing manner, specifically, the second drain pipe can be fastened and connected in a buckling manner. Thus, the installation of the defrosting drain pipe 80 can be facilitated and the sealing performance can be ensured by the arrangement of the first drain pipe 82 and the second drain pipe 83.

Further, the press chamber side cover plate 152 includes an inclined panel 1521 extending from top to bottom away from the press chamber 120 in an inclined manner, in this embodiment, the inclined panel 1521 extends from left to bottom in an inclined manner, and the drain pipe inlet 1522 is formed in the inclined panel 1521, so that when the refrigerator 100 is installed, the first drain pipe 82 is fixedly installed on the inner container 11, and when the inner container 11 carrying the first drain pipe 82 is installed into the outer container 12, the first drain pipe 82 can be smoothly inserted into the drain pipe inlet 1522 from top to bottom, so that the first drain pipe 82 is installed along with the inner container 11, the assembly is convenient, and the unsmooth installation of the inner container 11 due to the mutual interference between the first drain pipe 82 and the press chamber side cover plate 152 is avoided.

In addition, the first drainage pipe 82 is provided with a pressing plate 820 protruding towards the periphery, the pressing plate 820 is also inclined and extended from the top to the bottom away from the press bin 120, and the inclined angle of the pressing plate 820 is the same as that of the inclined panel 1521, so that the pressing plate 820 is attached to the inclined panel 1521, when the inner container 11 is installed in the outer container 12 and then is foamed to form the heat insulation layer 13, under the pushing action of foaming materials, the pressing plate 820 can further press the inclined panel 1521, the installation firmness of the first drainage pipe 82 and the side cover plate 152 of the press bin is enhanced, and the foaming materials can be prevented from overflowing into the press bin 120 along the seam between the first drainage pipe 82 and the side cover plate 152 of the press bin.

The detailed description set forth above is merely a specific description of possible embodiments of the present invention and is not intended to limit the scope of the invention, which is intended to include within the scope of the invention equivalent embodiments or modifications that do not depart from the technical spirit of the present invention.

Claims

1. An air-cooled horizontal freezer, comprising:

the cover plate is arranged in the accommodating cavity and divides the accommodating cavity into a storage compartment and a refrigerating compartment positioned between the cover plate and the inner container, a fan and an evaporator communicated with the compressor are distributed in the refrigerating compartment, and the evaporator and the step wall are arranged side by side in the left-right direction;

the auxiliary air supply outlet is positioned at the lower part of the storage chamber;

a control system configured to: after a starting instruction of the compressor is obtained, the compressor and the fan are controlled to operate, and whether the temperature reaches a first temperature threshold value or not is judged; if so, a first air supply path from the fan to the storage compartment through the air supply outlets is conducted, a second air supply path from the fan to the storage compartment through the auxiliary air supply outlets is cut off, and the first air supply path and the second air supply path are conducted simultaneously until the temperature is reduced to a second temperature threshold value; if not, the first air supply path and the second air supply path are conducted;

2. The air-cooled horizontal refrigerator of claim 1, further comprising:

3. The air-cooled horizontal refrigerator of claim 1, further comprising:

4. The air-cooled horizontal refrigerator according to claim 2 or 3, wherein the fan is a centrifugal fan, and the volute has a main air outlet, a volute tongue at the main air outlet, and a secondary air outlet at the volute tongue, the volute tongue defining a minimum radius of the volute, the main air outlet is communicated to the storage compartment through the plurality of air supply ports, and the secondary air outlet is communicated to the storage compartment through the auxiliary air supply port.

5. The air-cooled horizontal freezer of claim 4, wherein the control system comprises a first electrically operated damper movably disposed at the primary air outlet to turn on or off the first air path and a second electrically operated damper movably disposed at the secondary air outlet to turn on or off the second air path.

6. An operation control method of an air-cooled horizontal refrigerator, the refrigerator comprising:

the inner container is provided with a bottom wall which is vertically opposite to the opening and a step wall which is formed by bending upwards from the bottom wall, and a press bin for containing a compressor is arranged below the step wall;

the air supply outlets are positioned at the upper part of the storage chamber and the auxiliary air supply outlet is positioned at the lower part of the storage chamber;

the method comprises the following steps:

sensing the temperature of the storage compartment;

if not, the first air supply path and the second air supply path are conducted.

7. The operation control method of the air-cooled horizontal refrigerator according to claim 6, further comprising:

sensing the opening and closing of the door body at the opening;

and when the door body is sensed to be opened in the running of the fan, the first air supply path and the second air supply path are conducted, or the first air supply path is cut off and the second air supply path is conducted.

8. The operation control method of the air-cooled horizontal refrigerator according to claim 6, further comprising:

sensing a human body signal in an external preset area of the refrigerator;

when the human body signal is sensed in the operation of the fan, the first air supply path and the second air supply path are conducted, or the first air supply path is cut off and the second air supply path is conducted.

9. The method of claim 7 or 8, wherein the fan is a centrifugal fan, and the volute has a main outlet, a volute tongue at the main outlet and a secondary outlet at the volute tongue, the volute tongue defines a minimum radius of the volute, the main outlet is connected to the compartment via the air outlets, and the secondary outlet is connected to the compartment via the auxiliary outlet.

10. The method of claim 9, wherein the control system comprises a first electrically operated damper movably disposed at the primary air outlet to open or close the first air path and a second electrically operated damper movably disposed at the secondary air outlet to open or close the second air path.