Air-cooled refrigeration appliance

Abstract

The application provides a kind of air-cooled refrigeration equipment, including refrigeration chamber, first storage room, air supply pipe, fixed component and return air pipe.Evaporator is arranged in refrigeration chamber;First storage room side wall is provided with air outlet hole and fixed hole;Air supply pipe includes first air inlet end and first air outlet end, air supply pipe is communicated with refrigeration chamber by first air inlet end, air supply pipe is communicated with first storage room by first air outlet end;Fixed component is engaged into fixed hole;Return air pipe includes second air inlet end and second air outlet end, return air pipe is communicated with first storage room by second air inlet end, return air pipe is communicated with refrigeration chamber by second air outlet end.Return air pipe and fixed component are fixedly connected together by screw component, so as to fix the second air inlet end of return air pipe to the side wall of first storage room.The air-cooled refrigeration equipment of the application improves the strength of the side wall of first storage room, avoids the situation that the side wall of first storage room is deformed due to the installation of fixed component.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of refrigeration chamber equipment, and specifically provides a wind-cooled refrigeration equipment. BACKGROUND

[0002] The existing evaporator bottomed wind-cooled refrigeration equipment (for example, a refrigerator) comprises a refrigeration chamber, a storage chamber located above the refrigeration chamber, and an inner container. The storage chamber and the refrigeration chamber can be defined in one inner container or can be defined in different inner containers.

[0003] The existing wind-cooled refrigeration equipment generally comprises multiple storage chambers, for example, a freezing chamber, a variable-temperature chamber, and a refrigeration chamber distributed in sequence from bottom to top. The variable-temperature chamber and the refrigeration chamber need to be separately connected to the refrigeration chamber through a return air pipe to introduce the air in the chambers back to the refrigeration chamber. However, due to the thin side wall of the existing inner container, the return air pipe cannot be fixed to the inner container by using screws or bolts. SUMMARY

[0004] In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the return air pipe cannot be fixed to the inner container by using screws due to the thin side wall of the inner container, the present application provides a wind-cooled refrigeration equipment, which comprises:

[0005] a refrigeration chamber in which an evaporator is arranged;

[0006] a first storage chamber, a side wall of which is provided with an air outlet hole and a fixing hole;

[0007] an air supply pipe comprising a first air inlet end and a first air outlet end, the air supply pipe being in communication with the refrigeration chamber through the first air inlet end, and the air supply pipe being in communication with the first storage chamber through the first air outlet end;

[0008] a fixing member engaged into the fixing hole;

[0009] a return air pipe comprising a second air inlet end and a second air outlet end, the return air pipe being in communication with the first storage chamber through the second air inlet end, and the return air pipe being in communication with the refrigeration chamber through the second air outlet end;

[0010] wherein the return air pipe and the fixing member are fixedly connected together through a threaded member, so as to fix the second air inlet end of the return air pipe to the side wall of the first storage chamber.

[0011] Optionally, the fixing hole is in communication with the air outlet hole, and the size of the fixing hole is smaller than the size of the air outlet hole; the fixing member is configured to slide into and fit into the fixing hole from the air outlet hole.

[0012] Optionally, a sliding groove is arranged on the fixing member; in the state that the fixing member is embedded into the fixing hole, the part of the side wall of the first storage chamber, which is in contact with the fixing hole, is embedded into the sliding groove.

[0013] Optionally, the fixing member comprises a fixing column located outside the first storage chamber, a threaded hole is arranged on the fixing column, or an external thread is arranged on the peripheral surface of the fixing column.

[0014] 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 to the fixing member through the fixing wing.

[0015] Optionally, the return air pipe comprises a first pipe shell and a second pipe shell fixedly connected together, in the state that the refrigeration equipment is assembled, the first pipe shell is located at one side of the second pipe shell in the horizontal direction; the fixing wing is arranged on the first pipe shell or the second pipe shell.

[0016] Optionally, the evaporator is transversely arranged in the refrigeration chamber, the first air inlet end of the air supply pipe is located at the rear side of the evaporator; the second air outlet end of the return air pipe is located at the front side of the evaporator; the included angle between the air outlet direction of the return air pipe and the front direction of the evaporator ranges from 60° to 85°.

[0017] Optionally, the second air inlet end of the return air pipe is fixed to the rear side wall of the first storage chamber.

[0018] Optionally, the refrigeration equipment further comprises a second storage chamber arranged between the refrigeration chamber and the first storage chamber, a return air inlet is arranged on the front side wall of the refrigeration chamber, and the return air inlet is used for allowing the air in the second storage chamber to enter the refrigeration chamber.

[0019] Optionally, the refrigeration equipment comprises an inner container, the refrigeration chamber, the second storage chamber and the first storage chamber are sequentially arranged in the inner container from bottom to top, the side wall of the inner container constitutes at least part of the side walls of the refrigeration chamber, the first storage chamber and the second storage chamber; and / or the first storage chamber is a temperature-variable chamber, and the second storage chamber is a freezing chamber.

[0020] Further, optionally, the return air pipe comprises a first pipe shell with a first strip-shaped opening and a second pipe shell with a second strip-shaped opening, the first pipe shell and the second pipe shell are fixedly connected together in the state that the first strip-shaped opening and the second strip-shaped opening are opposite to each other, and thus the first pipe shell and the second pipe shell define a return air passage; in the state that the return air pipe is installed on the refrigeration equipment, the first pipe shell is located at one side of the second pipe shell in the horizontal direction.

[0021] Optionally, the joint gap between the first pipe shell and the second pipe shell is distributed on the top side, the bottom side, the front side and the back side of the first pipe shell or the second pipe shell.

[0022] Optionally, the first pipe shell comprises a first stop edge arranged at the first strip-shaped open edge, and the second pipe shell comprises a second stop edge arranged at the second strip-shaped open edge, and the first stop edge and the second stop edge are overlapped and abutted together.

[0023] Optionally, the first stop edge comprises a first inner stop edge and a first outer stop edge, and the second stop edge comprises a second inner stop edge and a second outer stop edge, and the second inner stop edge is located on the inner side of the first inner stop edge, and the second outer stop edge is inserted between the first inner stop edge and the second inner stop edge.

[0024] Optionally, a plurality of clamping grooves are arranged on the first outer stop edge, and a plurality of buckles are arranged on the second outer stop edge, and the first pipe shell and the second pipe shell are buckled together through the plurality of clamping grooves and the plurality of buckles.

[0025] Optionally, a plurality of clamping grooves are arranged on the first outer stop edge on the portions on both sides of the first strip-shaped open extending direction; and a plurality of buckles are arranged on the second outer stop edge on the portions on both sides of the second strip-shaped open extending direction.

[0026] Optionally, at least one clamping groove is arranged on the first outer stop edge at one end in the first strip-shaped open extending direction; and at least one buckle is arranged on the second outer stop edge at one end in the second strip-shaped open extending direction, and the at least one buckle corresponds to the at least one clamping groove.

[0027] Optionally, a first support rib is arranged in the first pipe shell, and the first support rib is used for supporting the side wall of the first pipe shell; and a second support rib is arranged in the second pipe shell, and the second support rib is used for supporting the side wall of the second pipe shell.

[0028] Optionally, the first support rib is perpendicular to the extending direction of the first strip-shaped open, and the second support rib is perpendicular to the extending direction of the second strip-shaped open; and / or the first support rib is arranged as a semi-cylinder, and the arc surface of the first support rib faces the first strip-shaped open; and the second support rib is arranged as a semi-cylinder, and the arc surface of the second support rib faces the second strip-shaped open.

[0029] Optionally, the air inlet and the air outlet of the return air pipe are arranged on the first pipe shell or the second pipe shell.

[0030] Based on the foregoing description, those skilled in the art can understand that, in the foregoing technical solutions of the present application, the fixed hole is arranged on the side wall of the first storage chamber, the fixing member is clamped into the fixed hole, and then the return air pipe is fixed to the fixing member through the threaded member, that is, the return air pipe is fixed to the side wall (the side wall of the inner container) of the first storage chamber through the fixing member. The clamping mode between the fixing member and the fixed hole facilitates the installation of the fixing member between the first storage chamber side wall and the fixing member, and also improves the strength of the side wall of the first storage chamber (the side wall of the inner container), avoiding the deformation of the side wall of the first storage chamber due to the installation of the fixing member.

[0031] Further, by making the fixed hole communicate with the air outlet hole, and providing a sliding groove on the fixing member, the fixing member can be slid into and fitted into the fixed hole from the air outlet hole, and the part of the side wall of the first storage chamber that is in contact with the fixed hole is embedded in the sliding groove, which not only facilitates the installation of the fixing member by the operator, but also improves the strength of the side wall of the first storage chamber.

[0032] Further, by arranging the second air outlet end of the return air pipe on the front side of the evaporator, setting the included angle between the air outlet direction of the return air pipe and the front of the evaporator to be in the range of 60° to 85°, and arranging the return air opening corresponding to the second storage chamber on the front side wall of the refrigeration chamber, the included angle between the air outlet direction of the return air opening and the air outlet direction of the return air pipe is 60° to 85°, so that the two air flows can collide with each other while avoiding the situation of air flow between them (such as air at the return air opening entering the return air pipe).

[0033] Those skilled in the art can understand that when the two air flows collide, the two air flows can be dispersed, and compared with the situation where the air flow is directly blown to the evaporator without being dispersed, the evaporator can be fully contacted with the flowing air, improving the contact area and use efficiency of the evaporator and air. Since the two air flows are dispersed when they collide, the flow rate of the air is also reduced, prolonging the contact time of the flowing air with the evaporator, so that the heat exchange between the evaporator and the air is more sufficient, further improving the use efficiency of the evaporator. The collision included angle of 60° to 85° can make the dispersed air flow diffuse more uniformly when flowing through the evaporator.

[0034] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the present application, hereinafter, some embodiments of the present application will be described with reference to the accompanying drawings. It should be understood by those skilled in the art that the components or parts indicated by the same reference signs in different drawings are the same or similar; the drawings of the present application are not necessarily drawn to scale with respect to each other. In the drawings:

[0036] Figure 1 is a front axonometric view of the inner container part in some embodiments of the present application;

[0037] Figure 2 is a front axonometric view of the inner container part in some embodiments of the present application; Figure 1 is a cross-sectional view of the inner container part in some embodiments of the present application;

[0038] Figure 3 is a front axonometric view of the inner container part in some embodiments of the present application;

[0039] Figure 4 is a front axonometric view of the inner container part in some embodiments of the present application; Figure 1

[0040] is a front axonometric view of the inner container part in some embodiments of the present application; Figure 5 Figure 4 is a front axonometric view of the inner container part in some embodiments of the present application;

[0041] Figure 6 Figure 4 is a cross-sectional view along the direction of A-A in some embodiments of the present application;

[0042] Figure 7 is a first structural exploded view of the return air duct in some embodiments of the present application;

[0043] Figure 8 is a second structural exploded view of the return air duct in some embodiments of the present application;

[0044] Figure 9 is a front axonometric view of the fixing member in some embodiments of the present application. DETAILED DESCRIPTION

[0045] It should be understood by those skilled in the art that the embodiments described hereinafter are only some embodiments of the present application, rather than all embodiments of the present application, and are intended to explain the technical principles of the present application, rather than to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort shall fall within the protection scope of the present application.

[0046] ​​It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Furthermore, it should be noted that the refrigeration equipment of the present invention includes refrigerators, freezers, and freezers.

[0049] The refrigeration device of the present invention will now be described in detail with reference to the accompanying drawings. Figure 1 This is a front axonometric view of the inner liner portion in some embodiments of the present invention; Figure 2 yes Figure 1 Axonometric sectional view of the inner liner section; Figure 3 These are schematic diagrams illustrating the effect of the air supply duct in some embodiments of the present invention; Figure 4 yes Figure 1 Rear axonometric view of the inner liner section; Figure 5 yes Figure 4 A structurally exploded diagram of the inner liner section; Figure 6 It is along Figure 4 A cross-sectional view along the AA direction; Figure 7 This is an exploded view of the first structure of the return air duct in some embodiments of the present invention; Figure 8 This is an exploded view of the second structure of the return air duct in some embodiments of the present invention; Figure 9 These are isometric views of the fixing components in some embodiments of the present invention.

[0050] like Figure 1 and Figure 2As shown, in some embodiments of the present application, the refrigeration device comprises an inner container 100, a refrigeration chamber 200 formed in the inner container 100, a first storage chamber 300 and a second storage chamber 400. Among them, the refrigeration chamber 200, the second storage chamber 400 and the first storage chamber 300 are sequentially distributed in the inner container 100 from bottom to top. The refrigeration device further comprises an evaporator 500 installed horizontally in the refrigeration chamber 200. The front side wall of the refrigeration chamber 200 is provided with a return air inlet 201, which is used for air in the second storage chamber 300 to enter the refrigeration chamber 200.

[0051] In addition, in other embodiments of the present application, the skilled in the art can also omit the setting of the second storage chamber 200 according to the needs.

[0052] Further, in other embodiments of the present application, the skilled in the art can also configure the refrigeration device with multiple inner containers 100, and limit the refrigeration chamber 200 and the first storage chamber 300 in different inner containers 100 according to the needs.

[0053] As shown, Figures 2 to 5 The refrigeration device further comprises a supply air pipe 600, a return air pipe 700, a fixing member 800 and a threaded member 900.

[0054] As shown, Figure 2 and Figure 3 The supply air pipe 600 comprises a first air inlet end 601 and a first air outlet end 602. The supply air pipe 600 communicates with the refrigeration chamber 200 through the first air inlet end 601, and communicates with the first storage chamber 300 through the first air outlet end 602. Further, the supply air pipe 600 comprises two first air outlet ends 602, and the supply air pipe 600 communicates with the second storage chamber 400 through another first air outlet end 602.

[0055] In addition, in other embodiments of the present application, the skilled in the art can adjust the number of first air outlet ends 602 according to the number of storage chambers, so as to ensure that each storage chamber corresponds to at least one first air outlet end 602.

[0056] It should be noted that in the present application, the air inlet of the supply air pipe 600 is formed on the first air inlet end 601, and at least one air inlet is provided on the first air inlet end 601; the air outlet of the supply air pipe 600 is formed on the first air outlet end 602, and at least one air outlet is provided on each first air outlet end 602.

[0057] As shown, Figure 4 and Figure 5As shown, the refrigeration device further comprises two return air ducts 700, which are symmetrically arranged on the left and right sides of the inner container 100 to enable the first storage chamber 300 to return air evenly. The return air duct 700 arranged on the left side of the inner container 100 is taken as an example to be described in detail below.

[0058] As shown in Figure 2 , Figure 4 and Figure 5 , the return air duct 700 comprises a second air inlet end 701 and a second air outlet end 702. The return air duct 700 communicates with the first storage chamber 300 through the second air inlet end 701, and communicates with the refrigeration chamber 200 through the second air outlet end 702. The return air duct 700 further comprises a fixed wing 703 arranged at the second air inlet end 701 and a fixed plate 704 arranged at the second air outlet end 702. The return air duct 700 is fixed to the inner container 100 through the fixed wing 703 and the fixed plate 704.

[0059] As shown in Figure 5 , corresponding to the second air inlet end 701 of the return air duct 700, the rear side wall of the inner container 100 (specifically, the rear side wall of the first storage chamber 300) is provided with an air outlet hole 101 and a fixed hole 102. Optionally, the fixed hole 102 communicates with the air outlet hole 101, and the size of the fixed hole 102 is smaller than that of the air outlet hole 101, so that the fixing member 800 can be slid into and fitted into the fixed hole 102 from the air outlet hole 101.

[0060] As shown in Figure 2 , in the assembled state, the second air inlet end 701 of the return air duct 700 is fitted into the air outlet hole 101, the fixing member 800 is fitted into the fixed hole 102, and the threaded member 900 is screwed together with the fixing member 800, thereby tightly fixing the fixed wing 703 of the return air duct 700 to the inner container 100.

[0061] In addition, in other embodiments of the present application, the skilled in the art can also set the air outlet hole 101 and the fixed hole 102 on the left and / or right side walls of the inner container 100 according to the needs, and fix the second air inlet end 701 of the return air duct 700 to the left and / or right side walls of the inner container 100.

[0062] As shown in Figure 5 and Figure 6 , corresponding to the second air outlet end 702 of the return air duct 700, the bottom of the inner container 100 is provided with a mounting surface 103, and the included angle between the mounting surface 103 and the side of the evaporator 500 ranges from 5° to 30°. The fixed plate 704 of the return air duct 700 is attached to the mounting surface 103, and optionally, the fixed plate 704 and the mounting surface 103 are fixed together by adhesion.

[0063] As shown in Figure 6 , since the included angle between the mounting surface 103 and the side surface of the evaporator 500 ranges from 5° to 30°, the included angle a between the air outlet direction of the return air duct 700 and the front of the evaporator 500 ranges from 60° to 85°. The specific range of the included angle a can be 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 a can be 60°, 64°, 70°, 73°, 75°, 80°, etc.

[0064] As shown in Figure 2 and Figure 6 , in the assembled state, the first air inlet end 601 of the air supply duct 600 is located at the rear side of the evaporator 500, the second air outlet end 702 of the return air duct 700 is located at the front side of the evaporator 500, and the return air inlet 201 of the refrigeration chamber 200 is located at the front side of the second air outlet end 702.

[0065] Based on this, those skilled in the art can understand that the included angle a enables the two air flows (the air flow entering the refrigeration chamber 200 from the return air inlet 201 and the air flow entering the refrigeration chamber 200 from the return air duct 700) to collide with each other while avoiding the situation of air flow between them (for example, the air at the return air inlet 201 entering the return air duct 700).

[0066] Those skilled in the art can further understand that the two air flows can be dispersed when colliding, which can enable each part of the evaporator 500 to be fully contacted by the flowing air, thereby improving the contact area and use efficiency of the evaporator 500, compared with directly blowing the air flow that has not been dispersed to the evaporator 500. Since the two air flows are dispersed when colliding, the flow rate of the air is also reduced, which prolongs the time for the flowing air to contact the evaporator 500, thereby making the heat exchange between the evaporator 500 and the air more sufficient, and further improving the use efficiency of the evaporator 500. The collision included angle of 60° to 85° can enable the dispersed air flow to be diffused more uniformly when flowing through the evaporator 500.

[0067] The specific structure of the return air duct 700 in some embodiments of the present application will be described in detail below with reference to Figure 7 and Figure 8 .

[0068] As shown in Figure 7 and Figure 8As shown, the return air duct 700 includes a first shell 710 and a second shell 720. The first shell 710 includes a first strip opening 711, and the second shell 720 includes a second strip opening 721. The first shell 710 and the second shell 720 are fixed together with the first strip opening 711 and the second strip opening 721 facing each other, thus defining a return air passage (not marked in the figure). When the return air duct 700 is installed on the refrigeration equipment, the first shell 710 is located on one side of the second shell 720 in the horizontal direction.

[0069] from Figure 5 , Figure 7 and Figure 8 As can be seen, the connection gap (not marked in the figure) between the first shell 710 and the second shell 720 is distributed on the top, bottom, front, and rear sides of the first shell 710 or the second shell 720. Specifically, the connection gap is distributed on the top, bottom, front, and rear sides of the second shell 720.

[0070] like Figure 7 and Figure 8 As shown, the first shell 710 includes a first flange 712 disposed at the edge of the first strip opening 711, and the second shell 720 includes a second flange 722 disposed at the edge of the second strip opening 721. The first flange 712 and the second flange 722 overlap and abut together, thus forming a connection gap (not marked in the figure) between the first shell 710 and the second shell 720.

[0071] Continue reading Figure 7 and Figure 8 The first stop 712 includes a first inner stop 7121 and a first outer stop 7122, and the second stop 722 includes a second inner stop 7221 and a second outer stop 7222. The second inner stop 7221 is located inside the first inner stop 7121, and the second outer stop 7222 is inserted between the first inner stop 7121 and the second inner stop 7121.

[0072] Continue reading Figure 7 and Figure 8 The first outer edge 7122 is provided with multiple slots 71221, and the second outer edge 7222 is provided with multiple buckles 72221. The multiple slots 71221 and the multiple buckles 72221 are fastened together, thereby completely fixing the first tube shell 710 and the second tube shell 720 together.

[0073] Continue reading Figure 7 and Figure 8The first outer flange 7122 is provided with a plurality of clamping grooves 71221 on the portions of the first outer flange 7122 on both sides of the extending direction of the first strip-shaped opening 711. The second outer flange 7222 is provided with a plurality of clamping buckles 72221 on the portions of the second outer flange 7222 on both sides of the extending direction of the second strip-shaped opening 721.

[0074] In other words, the clamping grooves 71221 on the two sides of the V-shape of the first tube shell 710 are staggered with each other, i.e. the clamping grooves 71221 on the two sides of the V-shape are staggered with each other. Similarly, the clamping buckles 72221 on the two sides of the V-shape of the second tube shell 720 are staggered with each other, i.e. the clamping buckles 72221 on the two sides of the V-shape are staggered with each other.

[0075] It can be understood by those skilled in the art that the staggered arrangement of the clamping grooves 71221 and the clamping buckles 72221 can make the fixing between the first tube shell 710 and the second tube shell 720 more reliable without increasing the number of the clamping grooves 71221 and the clamping buckles 72221.

[0076] Continuing to refer to Figure 7 and Figure 8 , the first outer flange 7122 is provided with at least one clamping groove 71221 (preferably one) at one end of the first outer flange 7122 in the extending direction of the first strip-shaped opening 711. The second outer flange 7222 is provided with at least one clamping buckle 72221 (preferably one) at one end of the second outer flange 7222 in the extending direction of the second strip-shaped opening 721. It can be seen from Figure 7 and Figure 8 that the one end is in an arc structure. The at least one clamping groove 71221 and the at least one clamping buckle 72221 make the fixing of the first tube shell 710 and the second tube shell 720 at the arc structure of the one end more reliable.

[0077] Preferably, each clamping buckle 72221 corresponds to one clamping groove 71221. Alternatively, those skilled in the art can also make a plurality of clamping buckles 72221 correspond to one clamping groove 71221 according to the needs.

[0078] In addition, in other embodiments of the present application, those skilled in the art can also omit the arrangement of the clamping buckles 72221 and the clamping grooves 71221 according to the needs, and make the first inner flange 7121, the first outer flange 7122, the second inner flange 7221 and the second outer flange 7222 clamp each other, so as to completely fix the first tube shell 710 and the second tube shell 720 together. Alternatively, glue can also be applied between the two adjacent flanges among the first inner flange 7121, the first outer flange 7122, the second inner flange 7221 and the second outer flange 7222, so as to completely fix the first tube shell 710 and the second tube shell 720 together by adhesion.

[0079] In addition, in other embodiments of the present application, the skilled in the art can also make the first and second retaining edges 712 and 722 retain one retaining edge respectively and clamp the first and second retaining edges 712 and 722 to each other, so as to completely fix the first and second tube shells 710 and 720 together. Alternatively, glue can be applied between the first and second retaining edges 712 and 722 to completely fix the first and second tube shells 710 and 720 together by means of adhesion.

[0080] With reference to Figure 7 and Figure 8 , the first tube shell 710 is provided with first support ribs 713 for supporting the side wall of the first tube shell 710. Specifically, the first support ribs 713 are perpendicular to the extension direction of the first strip-shaped opening 711 to support the opposite two sides of the first tube shell 710. The skilled in the art can understand that, due to the existence of the first strip-shaped opening 711, the two side edges of the first tube shell 710 close to the first strip-shaped opening 711 are prone to inward / outward deformation, and the first support ribs 713 can effectively avoid this situation.

[0081] With reference to Figure 7 and Figure 8 , the second tube shell 720 is provided with second support ribs 723 for supporting the side wall of the second tube shell 720. Specifically, the second support ribs 723 are perpendicular to the extension direction of the second strip-shaped opening 721 to support the opposite two sides of the second tube shell 720. The skilled in the art can understand that, due to the existence of the second strip-shaped opening 721, the two side edges of the second tube shell 720 close to the second strip-shaped opening 721 are prone to inward / outward deformation, and the second support ribs 723 can effectively avoid this situation.

[0082] Although not shown in the drawings, preferably, the first support ribs 7132 are arranged as half cylinders, and the arc surfaces of the first support ribs 713 face the first strip-shaped opening 711; the second support ribs 7232 are arranged as half cylinders, and the arc surfaces of the second support ribs 723 face the second strip-shaped opening 721. The skilled in the art can understand that, by arranging the first and second support ribs 7132 and 723 as half cylinders and making the arc surfaces of the half cylinders opposite to each other, the wind resistance of the first and second support ribs 7132 and 723 is effectively reduced on the premise of ensuring that the first and second tube shells 710 and 720 have sufficient strength.

[0083] With reference to Figure 7 and Figure 8The fixed wing 703, fixed plate 704, air inlet 705, and air outlet 706 of the return air duct 700 are all located on the first duct 710 to facilitate the operator's installation of the return air duct 700 onto the inner liner 100. Specifically, the operator can first fix the first duct 710 onto the inner liner 100, and then install the second duct 720 onto the first duct 710.

[0084] The fixed wing 703 is located at the second air inlet 701 of the return air duct 700 and is generally a straight plate structure; the fixed plate 704 is located at the second air outlet 702 of the return air duct 700 and is generally an arc-shaped plate structure.

[0085] The following reference Figure 9 The structure of the fixing member 800 in some embodiments of the present invention will be described in detail below.

[0086] like Figure 9 As shown, in some embodiments of the present invention, a groove 801 is provided on the fixing member 800. When the fixing member 800 is fitted into the fixing hole 102, the portion of the side wall of the first storage chamber 300 (i.e., the side wall of the inner liner 100) that is in contact with the fixing hole 102 is embedded in the groove 801, thereby causing the side wall of the groove 801 to clamp the side wall of the inner liner 100, and thus causing the fixing member 800 to be engaged in the fixing hole 102.

[0087] Continue reading Figure 9 The fixing component 800 includes a fixing post 802 located outside the first storage chamber 300 (i.e., outside the inner liner 100), and the fixing post 802 is provided with a threaded hole 8021.

[0088] like Figure 2 and Figure 5 As shown, in the assembled state, the threaded component 900 passes through the through hole on the fixed wing 703 and is tightened into the threaded hole 8021, thereby securing the fixed wing 703 to the inner liner 100. The threaded component 900 can be a screw or a bolt.

[0089] Furthermore, provided that the fixed wing 703 can be fastened to the inner liner 100 by means of the threaded member 900, the threaded hole 8021 on the fixed post 802 can also be replaced by a thread provided on the circumferential surface of the fixed post 802. The threaded member 900 can be a nut.

[0090] Those skilled in the art will understand that, since the thickness of the fixing member 800 is much greater than the thickness of the side wall of the inner liner 100, and the mating area between the fixing member 800 and the side wall of the inner liner 100 is large (the area corresponding to the sliding groove 801), the return air pipe 700 will not cause deformation of the side wall of the inner liner 100 when it is fixed to the inner liner 100 by screws or bolts.

[0091] The application will be described in detail below with reference to the accompanying drawings Figure 2 and Figure 5 The installation of the return air duct 700 in some embodiments of the application will be described in detail.

[0092] First, the fixing member 800 is slid into the fixing hole 102 from the air outlet 101, and thus the sliding groove 801 is clamped to the sidewall of the inner container 100, preventing the fixing member 800 from sliding down under the action of its own gravity. Then, the fixing wing 703 of the return air duct 700 is aligned with the fixing column 802, and the threaded member 900 is screwed onto the fixing column 802. Finally, the fixing plate 704 of the return air duct 700 is attached to the mounting surface 103 of the inner container 100.

[0093] Based on the foregoing description, those skilled in the art can understand that, by making the fixing hole 102 communicate with the air outlet 101, and providing the fixing member 800 with the sliding groove 801, the fixing member 800 can be slid into and fitted into the fixing hole 102 from the air outlet 101, and the part of the sidewall of the first storage chamber 300 that is in contact with the fixing hole 102 is embedded in the sliding groove 801, which not only facilitates the installation of the fixing member 800 by the operator, but also improves the strength of the sidewall of the first storage chamber 300.

[0094] Further, by setting the second air outlet end 702 of the return air duct 700 at the front side of the evaporator 500, setting the included angle between the air outlet direction of the return air duct 700 and the front of the evaporator 500 to a range of 60° to 85°, and providing the front sidewall of the refrigeration chamber 200 with a return air outlet 201 corresponding to the second storage chamber 500, the return air outlet 201 has an included angle of 60° to 85° with the air outlet direction of the return air duct 700, so that the two air flows can collide with each other while avoiding the situation of air flow between them (for example, air at the return air outlet 201 entering the return air duct 700).

[0095] Those skilled in the art can understand that, when the two air flows collide, they can be dispersed, and compared with the situation where the air flow is directly blown to the evaporator without being dispersed, the parts of the evaporator can be fully contacted with the flowing air, improving the contact area and use efficiency of the evaporator 500 and air. Since the two air flows are dispersed when colliding, the flow rate of the air is also reduced, prolonging the time for the flowing air to contact the evaporator 500, so that the heat exchange between the evaporator 500 and the air is more sufficient, further improving the use efficiency of the evaporator 500. The collision included angle of 60° to 85° can make the dispersed air flow diffuse more uniformly when flowing through the evaporator 500.

[0096] So far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the above-mentioned embodiments, or make equivalent changes or replacements to the related technical features, without departing from the technical principles of the present application. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A wind-cooled refrigeration device, comprising: a refrigeration chamber in which an evaporator is arranged; a first storage chamber, a side wall of which is provided with an air outlet hole and a fixing hole, the fixing hole being in communication with the air outlet hole and the fixing hole being smaller in size than the air outlet hole; an air supply pipe comprising a first air inlet end and a first air outlet end, the air supply pipe being in communication with the refrigeration chamber through the first air inlet end and being in communication with the first storage chamber through the first air outlet end; a fixing member provided with a sliding groove, the fixing member being configured to slide into and fit into the fixing hole from the air outlet hole so that a side wall of the sliding groove clamps a side wall of the first storage chamber; an air return pipe comprising a second air inlet end and a second air outlet end, the air return pipe being in communication with the first storage chamber through the second air inlet end and being in communication with the refrigeration chamber through the second air outlet end; wherein the air return pipe and the fixing member are fixedly connected together through a threaded member, thereby fixing the second air inlet end of the air return pipe to the side wall of the first storage chamber. 2.The wind-cooled refrigeration device according to claim 1, wherein the fixing member comprises a fixing column outside the first storage chamber, the fixing column being provided with a threaded hole or an external thread on an outer circumferential surface thereof. 3.The wind-cooled refrigeration device according to claim 1 or 2, wherein the air return pipe is provided with a fixing wing at a position close to the second air inlet end, the air return pipe being fixedly connected to the fixing member through the fixing wing. 4.The wind-cooled refrigeration device according to claim 3, wherein the air return pipe comprises a first pipe shell and a second pipe shell fixed together, the first pipe shell being located on one side of the second pipe shell in a horizontal direction in a state in which the refrigeration device is assembled; the fixing wing is provided on the first pipe shell or the second pipe shell. 5.The wind-cooled refrigeration device according to claim 1 or 2, wherein the evaporator is transversely arranged in the refrigeration chamber, the first air inlet end of the air supply pipe is located at a rear side of the evaporator; the second air outlet end of the air return pipe is located at a front side of the evaporator; an included angle between an air outlet direction of the air return pipe and a straight line in front of the evaporator ranges from 60° to 85°. 6.The wind-cooled refrigeration device according to claim 5, wherein the second air inlet end of the air return pipe is fixed to a rear side wall of the first storage chamber; and / or the included angle between the air outlet direction of the air return pipe and the straight line in front of the evaporator is 75°. 7.The wind-cooled refrigeration device according to claim 6, wherein the refrigeration device further comprises a second storage chamber arranged between the refrigeration chamber and the first storage chamber, a front side wall of the refrigeration chamber is provided with an air return port for air in the second storage chamber to enter the refrigeration chamber. 8.The wind-cooled refrigeration device according to claim 7, wherein The refrigeration device 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 a side wall of the inner container constitutes at least part of side walls of the refrigeration chamber, the first storage chamber and the second storage chamber.

9. The air-cooled refrigeration device of claim 7, wherein, The first storage chamber is a variable-temperature chamber, and the second storage chamber is a freezing chamber.

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