CN115682531A

CN115682531A - Air-cooled refrigeration equipment

Info

Publication number: CN115682531A
Application number: CN202110837816.XA
Authority: CN
Inventors: 王常志; 董凌云; 刘山山; 陈建全
Original assignee: HEFEI HAIER REFRIGERATOR CO Ltd; Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: HEFEI HAIER REFRIGERATOR CO Ltd; Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2023-02-03
Also published as: WO2023000721A1

Abstract

The invention provides an air-cooled refrigeration device which comprises a refrigeration chamber, a first storage chamber, an air supply pipe, a fixing component and an air return pipe. An evaporator is arranged in the refrigerating chamber; the side wall of the first storage room is provided with an air outlet and a fixing hole; the air supply pipe comprises a first air inlet end and a first air outlet end, the air supply pipe is communicated with the refrigerating chamber through the first air inlet end, and the air supply pipe is communicated with the first storage chamber through the first air outlet end; the fixing member is clamped into the fixing hole; the return air pipe includes second air inlet end and second air-out end, and the return air pipe passes through second air inlet end and first storeroom intercommunication, and the return air pipe passes through second air-out end and refrigeration room intercommunication. The air return pipe and the fixing member are fixedly connected together through a threaded member, so that a second air inlet end of the air return pipe is fixed to the side wall of the first storage chamber. The air-cooled refrigeration equipment improves the strength of the side wall of the first storage chamber and avoids the condition that the side wall of the first storage chamber is deformed due to installation of a fixing component.

Description

Air-cooled refrigeration equipment

Technical Field

The invention belongs to the technical field of refrigeration room equipment, and particularly provides air-cooled refrigeration equipment.

Background

An existing air-cooled refrigeration apparatus (e.g., a refrigerator) with a bottom-mounted evaporator includes a refrigeration compartment, a storage compartment located above the refrigeration compartment, and an inner container. The storage chamber and the refrigerating chamber can be limited in one inner container or different inner containers.

The existing air-cooled type refrigerating apparatus generally includes a plurality of storage compartments such as a freezing compartment, a temperature-changing compartment, and a refrigerating compartment, which are sequentially distributed from bottom to top. Wherein, the air in the temperature changing chamber and the refrigerating chamber is led back to the refrigerating chamber through a return air pipe which needs to be independent. However, the side wall of the existing liner is relatively thin, so that the return air pipe and the liner cannot be fixed by using screws or bolts.

Disclosure of Invention

The air return pipe is arranged on the inner container, and the air return pipe is connected with the inner container through a bolt. The invention provides an air-cooled refrigeration device, comprising:

a refrigerating chamber in which an evaporator is disposed;

the first storage chamber is provided with an air outlet hole and a fixing hole on the side wall;

the air supply pipe comprises a first air inlet end and a first air outlet end, the air supply pipe is communicated with the refrigeration chamber through the first air inlet end, and the air supply pipe is communicated with the first storage chamber through the first air outlet end;

a fixing member that is snap-fitted into the fixing hole;

the air return pipe comprises a second air inlet end and a second air outlet end, the air return pipe is communicated with the first storage chamber through the second air inlet end, and the air return pipe is communicated with the refrigerating chamber through the second air outlet end;

wherein the return air duct and the fixing member are fixedly coupled together by a screw member, thereby fixing the second inlet air end of the return air duct to a sidewall of the first storage chamber.

Optionally, the fixing hole is communicated with the air outlet, and the size of the fixing hole is smaller than that of the air outlet; the fixing member is configured to slide in from the air outlet hole and to be fitted into the fixing hole.

Optionally, a sliding groove is arranged on the fixing component; in a state where the fixing member is fitted into the fixing hole, a portion of the side wall of the first storage chamber, which is in contact with the fixing hole, is fitted into the chute.

Optionally, the fixing member includes a fixing post located outside the first storage compartment, and a screw hole is provided in the fixing post, or an external thread is provided on an outer circumferential surface of the fixing post.

Optionally, the return air pipe is provided with a fixing wing at a position close to the second air inlet end, and the return air pipe is fixedly connected with the fixing member through the fixing wing.

Optionally, the return air duct includes a first pipe case and a second pipe case fixed together, the first pipe case being located on one side in a horizontal direction of the second pipe case in a state where the refrigeration apparatus is assembled; the fixed wing is arranged on the first pipe shell or the second pipe shell.

Optionally, the evaporator is transversely arranged in the refrigerating chamber, and the first air inlet end of the air supply pipe is positioned at the rear side of the evaporator; the second air outlet end of the air return pipe is positioned on the front side of the evaporator; the range of the included angle between the air outlet direction of the air return pipe and the right front of the evaporator is 60-85 degrees.

Optionally, the second air inlet end of the return air duct is fixed to a rear side wall of the first storage chamber.

Optionally, the refrigeration equipment further includes a second storage chamber disposed between the refrigeration chamber and the first storage chamber, and an air return opening is disposed on a front side wall of the refrigeration chamber, and the air return opening is used for allowing air in the second storage chamber to enter the refrigeration chamber.

Optionally, the refrigeration device includes an inner container, the refrigeration chamber, the second storage chamber and the first storage chamber are distributed in the inner container from bottom to top, and a side wall of the inner container forms at least a part of a side wall of the refrigeration chamber, the first storage chamber and the second storage chamber; and/or the first storage chamber is a temperature-changing chamber and the second storage chamber is a freezing chamber.

Further, optionally, the return duct includes a first tube shell having a first strip-shaped opening and a second tube shell having a second strip-shaped opening, the first tube shell and the second tube shell being fixed together in a posture in which the first strip-shaped opening and the second strip-shaped opening are opposed to each other, and thus the first tube shell and the second tube shell define a return duct; the first shell is located on one side of the second shell in the horizontal direction in a state where the return duct is mounted to the refrigeration apparatus.

Optionally, the engagement gaps between the first and second tube shells are distributed on the top side, bottom side, front side and rear side of the first or second tube shell.

Optionally, the first tube shell comprises a first rib arranged at the first strip-shaped open edge, the second tube shell comprises a second rib arranged at the second strip-shaped open edge, and the first rib and the second rib are overlapped and abutted together.

Optionally, the first rib includes a first inner rib and a first outer rib, the second rib includes a second inner rib and a second outer rib, the second inner rib is located inside the first inner rib, and the second outer rib is inserted between the first inner rib and the second inner rib.

Optionally, a plurality of clamping grooves are formed in the first outer flange, a plurality of buckles are arranged on the second outer flange, and the first pipe shell and the second pipe shell are buckled together through the plurality of clamping grooves and the plurality of buckles.

Optionally, the first outer ribs are arranged on parts of two sides of the first strip-shaped opening in the extending direction in a staggered manner, and a plurality of clamping grooves are arranged in the first outer ribs; the second outer flanges are arranged on the parts on two sides of the second strip-shaped opening extending direction in a staggered mode, and a plurality of buckles are arranged on the second outer flanges in a staggered mode.

Optionally, at least one of the clamping grooves is arranged at one end of the first outer rib in the extending direction of the first strip-shaped opening; at least one buckle is arranged at one end of the second outer flange in the extending direction of the second strip-shaped opening, and the at least one buckle corresponds to the at least one clamping groove.

Optionally, a first support rib is arranged in the first tube shell, and the first support rib is used for supporting the side wall of the first tube shell; and second support ribs are arranged in the second pipe shell and used for supporting the side wall of the second pipe shell.

Optionally, the first support rib is perpendicular to the extending direction of the first strip-shaped opening, and the second support rib is perpendicular to the extending direction of the second strip-shaped opening; and/or the first support rib is arranged to be a semi-cylinder, and the arc-shaped surface of the first support rib faces the first strip-shaped opening; the second support rib is provided as a semi-cylinder, and an arc-shaped face of the second support rib faces the second strip-shaped opening.

Optionally, both the air inlet and the air outlet of the return air duct are disposed on the first tube shell or the second tube shell.

Based on the foregoing description, it can be understood by those skilled in the art that, in the foregoing technical solution of the present invention, by providing the fixing holes on the side wall of the first storage chamber, and snapping the fixing members into the fixing holes, then fixing the return air duct to the fixing members through the screw members, that is, the return air duct can be fixed to the side wall of the first storage chamber (the side wall of the inner container) through the fixing members by the screw members. The clamping mode between the fixing component and the fixing hole facilitates installation of an operator between the fixing component and the side wall of the first storage room, improves strength of the side wall (the side wall of the inner container) of the first storage room, and avoids deformation of the side wall of the first storage room due to installation of the fixing component.

Furthermore, the fixing hole is communicated with the air outlet hole, the sliding groove is formed in the fixing component, the fixing component can slide into the fixing hole from the air outlet hole and be embedded into the fixing hole, and the part, connected with the fixing hole, of the side wall of the first storage room is embedded into the sliding groove, so that the fixing component is convenient to install by an operator, and the strength of the side wall of the first storage room is improved.

Furthermore, through setting up the second air-out end of return air duct in the front side of evaporimeter, the value range of the contained angle between the air-out direction of return air duct and the dead ahead of evaporimeter sets up 60 to 85 to set up the return air inlet corresponding with the second storeroom on the preceding lateral wall of refrigerating chamber, make the contained angle that has 60 to 85 between the air-out direction of return air inlet and the return air duct, when two air currents can be counterpulsation each other, the situation of the wind of having still avoided each other (for example in the wind entering return air duct of return air inlet department) between each other.

As can be understood by those skilled in the art, when the two air flows are opposite, the two air flows can be dispersed, and compared with the condition that the air flow which is not dispersed is directly blown to the evaporator, all parts of the evaporator can be fully contacted with the flowing air, so that the contact area and the use efficiency of the evaporator and the air are improved. Because two air currents are broken up respectively when being collided, make the velocity of flow of air also reduced, prolonged the time of flowing air and evaporimeter contact, thereby make the heat transfer between evaporimeter and the air more abundant, further promoted the availability factor of evaporimeter. Whereas an included angle of 60 to 85 impingement enables the dispersed air flow to be more uniformly spread as it passes through the evaporator.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly explain the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number identified in different figures are the same or similar; the drawings of the invention are not necessarily to scale relative to each other. In the drawings:

FIG. 1 is a front isometric view of a liner portion in accordance with certain embodiments of the invention;

FIG. 2 is an axial cross-sectional view of the liner portion of FIG. 1;

FIG. 3 is a schematic illustration of the effect of the blower tube in some embodiments of the invention;

FIG. 4 is a rear isometric view of the bladder portion of FIG. 1;

FIG. 5 is an exploded view of the inner container portion of FIG. 4;

FIG. 6 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 4;

FIG. 7 is a first exploded view of the return air duct in some embodiments of the present invention;

FIG. 8 is a second exploded view of the return air duct in accordance with some embodiments of the present invention;

FIG. 9 is an isometric view of a fixation member in some embodiments of the invention.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, not all of the embodiments of the present invention, and the part of the embodiments are intended to explain the technical principles of the present invention and not to limit the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, shall fall within the scope of protection of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Further, it should be noted that the refrigerating apparatus of the present invention includes a refrigerator, an ice chest and a freezer.

The refrigeration appliance of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front isometric view of a liner portion according to some embodiments of the present invention; FIG. 2 is an axial cross-sectional view of the liner portion of FIG. 1; FIG. 3 is a schematic illustration of the effect of a blower tube in some embodiments of the invention; FIG. 4 is a rear isometric view of the bladder portion of FIG. 1; FIG. 5 is an exploded view of the inner container portion of FIG. 4; FIG. 6 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 4; FIG. 7 is a first exploded view of the return air duct in some embodiments of the present invention; FIG. 8 is a second exploded view of the return air duct in some embodiments of the present invention; FIG. 9 is an isometric view of a fixation member in some embodiments of the invention.

As shown in fig. 1 and 2, in some embodiments of the present invention, a refrigerating apparatus includes a cabinet 100, a refrigerating compartment 200 formed in the cabinet 100, a first storage compartment 300, and a second storage compartment 400. Wherein, the refrigerating compartment 200, the second storage compartment 400 and the first storage compartment 300 are sequentially distributed in the inner container 100 from bottom to top. The refrigerating apparatus further comprises an evaporator 500 mounted transversely inside the refrigerating compartment 200. An air return opening 201 is formed in a front side wall of the cooling compartment 200, and the air return opening 201 is used for allowing air in the second storage compartment 300 to enter the cooling compartment 200.

In addition, in other embodiments of the present invention, a person skilled in the art may omit the second storage chamber 200 as needed.

Further, in other embodiments of the present invention, one skilled in the art may also configure a plurality of inner containers 100 for the refrigeration apparatus as needed, and define the refrigeration compartment 200 and the first storage compartment 300 in different inner containers 100.

As shown in fig. 2 to 5, the refrigerating apparatus further includes a blast pipe 600, a return pipe 700, a fixing member 800, and a screw member 900.

As shown in fig. 2 and 3, the air supply pipe 600 includes a first air inlet end 601 and a first air outlet end 602, the air supply pipe 600 is communicated with the refrigeration compartment 200 through the first air inlet end 601, and the air supply pipe 600 is communicated with the first storage compartment 300 through the first air outlet end 602. Further, the air supply pipe 600 includes two first air outlet ends 602, and the air supply pipe 600 is communicated with the second storage chamber 400 through the other first air outlet end 602.

In addition, in other embodiments of the present invention, a person skilled in the art may adjust the number of the first wind outlet ends 602 according to the number of the storage compartments to ensure that each storage compartment corresponds to at least one first wind outlet end 602.

It should be noted that, in the present invention, the air inlet of the air supply pipe 600 is formed on the first air inlet end 601, and at least one air inlet is arranged on the first air inlet end 601; the air outlet of the air supply pipe 600 is formed at the first air outlet end 602, and each first air outlet end 602 is provided with at least one air outlet.

As shown in fig. 4 and 5, the refrigerating apparatus further includes two return ducts 700, and the two return ducts 700 are substantially symmetrically disposed at left and right sides of the inner container 100 to enable the first storage compartment 300 to uniformly return air. The following description will be made in detail by taking the return duct 700 provided at the left side portion of the inner container 100 as an example.

As shown in fig. 2, 4 and 5, the return duct 700 includes a second air inlet end 701 and a second air outlet end 702, the return duct 700 is communicated with the first storage compartment 300 through the second air inlet end 701, and the return duct 700 is communicated with the refrigerating compartment 200 through the second air outlet end 702. The return air duct 700 further includes a fixing wing 703 disposed at the second air inlet end 701 and a fixing plate 704 disposed at the second air outlet end 702. The return duct 700 is fixed to the inner container 100 by fixing wings 703 and fixing plates 704.

As shown in fig. 5, the rear sidewall of the inner container 100 (specifically, the rear sidewall of the first storage chamber 300) is provided with an air outlet 101 and a fixing hole 102 corresponding to the second air inlet 701 of the return duct 700. Alternatively, the fixing hole 102 communicates with the air-out hole 101, and the size of the fixing hole 102 is smaller than that of the air-out hole 101, so that the fixing member 800 can be slid in from the air-out hole 101 and fitted into the fixing hole 102.

As shown in fig. 2, in an assembled state, the second air inlet end 701 of the return duct 700 is fitted into the air outlet 101, the fixing member 800 is fitted into the fixing hole 102, and the screw member 900 is screwed with the fixing member 800, thereby tightly fixing the fixing wing 703 of the return duct 700 to the inner container 100.

In addition, in other embodiments of the present invention, a person skilled in the art can also set the air outlet holes 101 and the fixing holes 102 on the left and/or right side wall of the inner container 100 and fix the second air inlet end 701 of the return air duct 700 to the left and/or right side wall of the inner container 100, as required.

As shown in fig. 5 and 6, the bottom of the inner container 100 is provided with a mounting surface 103 corresponding to the second air outlet 702 of the return air duct 700, and an included angle between the mounting surface 103 and the side surface of the evaporator 500 ranges from 5 ° to 30 °. The fixing plate 704 of the return duct 700 is attached to the mounting surface 103, and optionally, the fixing plate 704 is adhesively fixed to the mounting surface 103.

As shown in fig. 6, the included angle between the mounting surface 103 and the side surface of the evaporator 500 ranges from 5 ° to 30 °, so that the included angle α between the air outlet direction of the return air duct 700 and the front side of the evaporator 500 ranges from 60 ° to 85 °. The specific value range of the included angle α can be optionally adjusted by adjusting the included angle between the mounting surface 103 and the side surface of the evaporator 500, and the specific value of the included angle α may be 60 °, 64 °, 70 °, 73 °, 75 °, 80 °, and the like.

As shown in fig. 2 and 6, in an assembled state, the first air inlet end 601 of the blast pipe 600 is located at the rear side of the evaporator 500, the second air outlet end 702 of the return air pipe 700 is located at the front side of the evaporator 500, and the return air inlet 201 of the refrigeration compartment 200 is located at the front side of the second air outlet end 702.

Based on this, it can be understood by those skilled in the art that the included angle α avoids the situation of cross-ventilation between the two air flows (the air flow entering the refrigeration compartment 200 from the return air inlet 201 and the air flow entering the refrigeration compartment 200 from the return air duct 700) while enabling the two air flows to be opposite to each other (for example, the air flow at the return air inlet 201 enters the return air duct 700).

It will be further appreciated by those skilled in the art that the two air streams can be broken up when they are collided, so that the portions of the evaporator 500 can be fully contacted with the flowing air, and the contact area and the use efficiency of the evaporator 500 with the air are improved, compared to the case that the air streams which are not broken up are directly blown to the evaporator 500. Because the two airflows are scattered respectively during hedging, the flow velocity of the air is reduced, the contact time of the flowing air and the evaporator 500 is prolonged, the heat exchange between the evaporator 500 and the air is more sufficient, and the use efficiency of the evaporator 500 is further improved. While an included angle of 60 to 85 impingement enables the dispersed airflow to be more uniformly spread as it flows through the evaporator 500.

The specific structure of the return air duct 700 in some embodiments of the present invention will be described in detail with reference to fig. 7 and 8.

As shown in fig. 7 and 8, the return air duct 700 includes a first duct 710 and a second duct 720, the first duct 710 includes a first strip opening 711, and the second duct 720 includes a second strip opening 721. The first and

second cartridges

710 and 720 are fixed together in such a posture that the first and

second strip openings

711 and 721 are opposite to each other, and thus the first and

second cartridges

710 and 720 define a return air passage (not marked in the drawing). The first enclosure 710 is located at one side of the second enclosure 720 in the horizontal direction in a state where the return duct 700 is mounted to the refrigerating apparatus.

As can be seen from fig. 5, 7 and 8, the engagement gaps (not labeled) between the first and

second cartridges

710 and 720 are distributed on the top, bottom, front and rear sides of the first or

second cartridge

710 or 720. Specifically, the engagement slits are distributed on the top side, bottom side, front side, and rear side of the second tube housing 720.

As shown in fig. 7 and 8, the first tube case 710 includes a first rib 712 disposed at an edge of the first strip-shaped opening 711, the second tube case 720 includes a second rib 722 disposed at an edge of the second strip-shaped opening 721, and the first rib 712 and the second rib 722 are overlapped and abutted to each other, and thus an engagement gap (not marked) between the first tube case 710 and the second tube case 720 is formed.

With continued reference to fig. 7 and 8, the first rib 712 includes a first inner rib 7121 and a first outer rib 7122, the second rib 722 includes a second inner rib 7221 and a second outer rib 7222, the second inner rib 7221 is positioned inboard of the first inner rib 7121, and the second outer rib 7222 is interposed between the first inner rib 7121 and the second inner rib 7121.

With continued reference to fig. 7 and 8, the first outer rim 7122 is provided with a plurality of slots 71221 and the second outer rim 7222 is provided with a plurality of snaps 72221, the plurality of slots 71221 and the plurality of snaps 72221 snap together and thereby completely secure the first and

second housings

710, 720 together.

With continued reference to fig. 7 and 8, the first outer rim 7122 has a plurality of engaging grooves 71221 formed in a staggered manner at portions on both sides of the extending direction of the first strip-shaped opening 711. The second outer ribs 7222 are formed by a plurality of hooks 72221 arranged in a staggered manner on portions on both sides in the extending direction of the second strip-shaped opening 721.

In other words, the slots 71221 on the two sides of the V-shape on the first housing 710 are not aligned with each other, i.e., the slots 71221 on the two sides of the V-shape are interdigitally arranged. Likewise, the catches 72221 on the two sides of the V on the second cartridge 720 are not aligned with each other, i.e., the catches 72221 on the two sides of the V are interdigitally arranged.

It will be appreciated by those skilled in the art that the staggered arrangement of the slots 71221 and the snaps 72221 can provide a more secure attachment between the first and

second housings

710, 720 without increasing the number of slots 71221 and snaps 72221 too much.

With continued reference to fig. 7 and 8, the first outer rim 7122 is provided with at least one, and preferably one, locking groove 71221 at one end in the direction of extension of the first elongated opening 711. The second outer rib 7222 is provided with at least one (preferably one) catch 72221 at one end portion in the extending direction of the second strip-shaped opening 721. As can be seen in fig. 7 and 8, the one end portion has an arcuate configuration. The at least one locking slot 71221 and the at least one snap 72221 make the arc-shaped structure of the first and

second tube shells

710 and 720 at the one end more securely fixed.

Preferably, each snap 72221 corresponds to a snap groove 71221. Alternatively, one skilled in the art may also make a plurality of fasteners 72221 correspond to one slot 71221 as needed.

In addition, in other embodiments of the present invention, one skilled in the art can omit the provision of the snap 72221 and the snap groove 71221, and clamp the first inner flange 7121, the first outer flange 7122, the second inner flange 7221 and the second outer flange 7222 to each other, as desired, to completely secure the first and

second cartridges

710 and 720 together. Optionally, glue may also be applied between adjacent ones of the first inner rib 7121, the first outer rib 7122, the second inner rib 7221 and the second outer rib 7222 to adhesively secure the first and

second cartridges

710 and 720 together.

In addition, in other embodiments of the present invention, one skilled in the art may retain the first rib 712 and the second rib 722 and clamp the first rib 712 and the second rib 722 to each other, as needed, to completely fix the first and

second shells

710 and 720 together. Alternatively, glue is applied between the first and

second rims

712 and 722 to adhesively secure the first and

second shells

710 and 720 together.

With continued reference to fig. 7 and 8, the first tube housing 710 is provided with first support ribs 713 therein, the first support ribs 713 supporting the sidewalls of the first tube housing 710. Specifically, the first supporting ribs 713 are perpendicular to the extending direction of the first strip opening 711 to support opposite sides of the first tube housing 710. It can be understood by those skilled in the art that the first tube housing 710 is easily deformed inwardly/outwardly adjacent to both sides of the first strip opening 711 due to the presence of the first strip opening 711, and the first support ribs 713 can effectively prevent this.

With continued reference to fig. 7 and 8, a second support rib 723 is disposed within the second cartridge 720, the second support rib 723 being configured to support a sidewall of the second cartridge 720. Specifically, the second support rib 723 is perpendicular to an extending direction of the second strip-shaped opening 721 to support opposite sides of the second tube housing 720. It can be understood by those skilled in the art that the second pipe case 720 is easily deformed inwardly/outwardly at both sides adjacent to the second strip-shaped opening 721 due to the presence of the second strip-shaped opening 721, and the second support rib 723 can effectively prevent this.

Although not shown in the drawings, it is preferable that the first support rib 7132 is provided as a semi-cylinder and the arc-shaped face of the first support rib 713 faces the first strip opening 711; the second support rib 7232 is provided in a semi-cylinder shape, and the arc-shaped surface of the second support rib 723 faces the second strip-shaped opening 721. It can be understood by those skilled in the art that by arranging the first support rib 7132 and the second support rib 723 as semicylinders and making the arc-shaped faces of the semicylinders opposite to each other, the wind resistance of the first support rib 7132 and the second support rib 723 is also effectively reduced by the arc-shaped faces opposite to each other on the premise of ensuring that the first case 710 and the second case 720 have sufficient strength.

With continued reference to fig. 7 and 8, the fixing wings 703, the fixing plates 704, the air inlets 705 and the air outlets 706 of the return air duct 700 are disposed on the first pipe 710 to facilitate the installation of the return air duct 700 on the inner container 100 by an operator. Specifically, the operator may first fix the first pipe 710 to the inner container 100 and then install the second pipe 720 on the first pipe 710.

The fixed wing 703 is arranged at the second air inlet end 701 of the return air duct 700 and has a substantially straight plate-shaped structure; the fixing plate 704 is disposed at the second air outlet end 702 of the return air duct 700 and has a substantially arc-shaped plate-like structure.

The structure of the fixing member 800 according to some embodiments of the present invention will be described in detail with reference to fig. 9.

As shown in fig. 9, in some embodiments of the present invention, a slide groove 801 is provided on the fixing member 800. In a state where the fixing member 800 is fitted into the fixing hole 102, a portion where the side wall of the first storage chamber 300 (i.e., the side wall of the inner bladder 100) meets the fixing hole 102 is inserted into the chute 801, so that the side wall of the chute 801 clamps the side wall of the inner bladder 100, and thus the fixing member 800 is caught in the fixing hole 102.

With continued reference to fig. 9, the fixing member 800 includes a fixing post 802 located at an outer side of the first storage chamber 300 (i.e., an outer side of the inner bladder 100), and a screw hole 8021 is provided on the fixing post 802.

As shown in fig. 2 and 5, in an assembled state, the screw member 900 passes through the through hole of the stationary wing 703 and is screwed into the screw hole 8021, thereby fastening the stationary wing 703 to the inner bladder 100. Wherein the screw member 900 may be a screw or a bolt.

In addition, the screw hole 8021 on the fixing post 802 may be replaced by a screw provided on the circumferential surface of the fixing post 802, provided that the fixing wing 703 can be fastened to the inner container 100 by the screw member 900. Wherein the screw member 900 may be a nut.

As can be understood by those skilled in the art, since the thickness of the fixing member 800 is much greater than that of the sidewall of the inner container 100, and the fitting area between the fixing member 800 and the sidewall of the inner container 100 is large (the area corresponding to the sliding groove 801), the sidewall of the inner container 100 will not deform when the air return pipe 700 is fixed to the inner container 100 by screws or bolts.

Referring now to fig. 2 and 5, the installation of the return air duct 700 in some embodiments of the present invention will be described in detail.

First, the fixing member 800 slides into the fixing hole 102 from the air outlet 101, and thus the sliding groove 801 is made to catch the side wall of the liner 100, preventing the fixing member 800 from sliding down under the action of its own weight. Then, the fixing wing 703 of the return duct 700 is aligned with the fixing post 802, and the screw member 900 is screwed to the fixing post 802. Finally, the fixing plate 704 of the return duct 700 is attached to the mounting surface 103 of the inner container 100.

Based on the foregoing description, it can be understood by those skilled in the art that the present invention not only facilitates the installation of the fixing member 800 by the operator, but also improves the strength of the side wall of the first storage chamber 300 by providing the fixing hole 102 to communicate with the air outlet 101 and providing the sliding groove 801 on the fixing member 800, so that the fixing member 800 can be slid into and fitted into the fixing hole 102 from the air outlet 101, and the portion of the side wall of the first storage chamber 300 that meets the fixing hole 102 is fitted into the sliding groove 801.

Furthermore, according to the invention, the second air outlet end 702 of the air return pipe 700 is arranged at the front side of the evaporator 500, the range of the included angle between the air outlet direction of the air return pipe 700 and the front side of the evaporator 500 is set to be 60-85 °, and the air return opening 201 corresponding to the second storage chamber 500 is arranged on the front side wall of the cooling chamber 200, so that the included angle between the air return direction of the air return opening 201 and the air outlet direction of the air return pipe 700 is 60-85 °, and the air flow can be opposite to each other while avoiding the air cross between the two air flows (for example, the air at the air return opening 201 enters the air return pipe 700).

It will be appreciated by those skilled in the art that when the two air streams are opposite, the two air streams can be dispersed, and compared with the case that the air streams which are not dispersed are directly blown to the evaporator, the two air streams can make all parts of the evaporator fully contact with the flowing air, so that the contact area and the use efficiency of the evaporator 500 with the air are improved. Because two air currents are broken up respectively when being collided, make the velocity of flow of air also reduced, prolonged the time of flowing air and evaporimeter 500 contact, thereby make the heat transfer between evaporimeter 500 and the air more abundant, further promoted the availability factor of evaporimeter 500. While an included angle of 60 to 85 impingement enables the dispersed airflow to be more uniformly spread as it flows through the evaporator 500.

So far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments. A person skilled in the art may split and combine the technical solutions in the above embodiments without departing from the technical principle of the present invention, and may also make equivalent changes or substitutions for the related technical features, and any changes, equivalents, improvements, etc. made within the technical idea and/or technical principle of the present invention will fall within the protection scope of the present invention.

Claims

1. An air-cooled refrigeration appliance comprising:

a refrigerating chamber in which an evaporator is disposed;

a fixing member that is snapped into the fixing hole;

2. The air-cooled refrigeration appliance according to claim 1, wherein,

the fixing hole is communicated with the air outlet hole, and the size of the fixing hole is smaller than that of the air outlet hole;

the fixing member is configured to slide in from the air outlet and to be fitted into the fixing hole.

3. The air-cooled refrigeration appliance according to claim 2, wherein,

the fixed component is provided with a chute;

in a state where the fixing member is fitted into the fixing hole, a portion of the side wall of the first storage chamber, which is in contact with the fixing hole, is fitted into the chute.

4. The air-cooled refrigeration appliance according to claim 3, wherein,

the fixing component comprises a fixing column located outside the first storage chamber, a threaded hole is formed in the fixing column, or an external thread is arranged on the outer peripheral face of the fixing column.

5. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the return air pipe is provided with a fixed wing at a position close to the second air inlet end, and the return air pipe is fixedly connected with the fixed member through the fixed wing.

6. The air-cooled refrigeration appliance according to claim 5, wherein,

the return air duct includes a first duct and a second duct fixed together, the first duct being located on one side of the second duct in a horizontal direction in a state where the refrigeration apparatus is assembled;

the fixed wing is arranged on the first pipe shell or the second pipe shell.

7. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the evaporator is placed across the refrigerated compartment,

the first air inlet end of the air supply pipe is positioned at the rear side of the evaporator;

the second air outlet end of the air return pipe is positioned on the front side of the evaporator;

the range of the included angle between the air outlet direction of the air return pipe and the right front of the evaporator is 60-85 degrees.

8. The air-cooled refrigeration appliance according to claim 7, wherein,

the second air inlet end of the air return pipe is fixed to the rear side wall of the first storage chamber; and/or the like and/or,

the value of the included angle between the air outlet direction of the air return pipe and the right front of the evaporator is 75 degrees.

9. The air-cooled refrigeration appliance according to claim 8,

the refrigeration appliance further includes a second storage compartment disposed between the refrigeration compartment and the first storage compartment,

and an air return opening is formed in the front side wall of the refrigerating chamber and used for enabling air in the second storage chamber to enter the refrigerating chamber.

10. The air-cooled refrigeration appliance according to claim 9, wherein,

the refrigeration equipment comprises an inner container, the refrigeration chamber, the second storage chamber and the first storage chamber are sequentially distributed in the inner container from bottom to top, and the side wall of the inner container forms at least one part of the side walls of the refrigeration chamber, the first storage chamber and the second storage chamber; and/or the like and/or,

the first storage chamber is a variable temperature chamber and the second storage chamber is a freezing chamber.