Volute fan and refrigeration equipment

Abstract

The utility model relates to the technical field of draught fans, and provides a volute draught fan and refrigeration equipment, the volute draught fan comprises a shell and a wind wheel, the shell comprises a volute body and a lengthening section, the volute body is provided with a wind cavity and an air inlet communicated with the wind cavity, the lengthening section is connected to the volute body, an air outlet channel is formed in the lengthening section, one end of the air outlet channel is communicated with the wind cavity, and the other end of the air outlet channel is communicated with the wind wheel. An air outlet is formed in the other end of the air outlet duct; the wind wheel is arranged in the wind cavity. The air cavity is formed in the volute body, the air wheel is arranged in the air cavity, and the air wheel rotates to achieve fresh air circulation through the air inlet and the air outlet. Meanwhile, the volute body is connected with a lengthened section in the air outlet direction, an air outlet channel communicated with the air cavity is formed in the lengthened section, and air in the air cavity can be guided out through the air outlet channel. Moreover, through the lengthened air outlet channel, one or more functional modules can be installed, the fan functional modules can be freely combined, installation is convenient and fast, and rotation of the wind wheel cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a volute fan and a refrigeration device. Background Art

[0002] At present, the volute fans used in refrigeration devices are generally for realizing the fresh air circulation in the refrigeration devices. For example, the volute fan is installed in a refrigerator to realize the fresh air circulation and ensure the fresh-keeping effect of the food in the refrigerator. In order to reduce the odor problem in the refrigerator, an odor removal module and other structures are usually arranged in the volute fan. However, due to the small space of the general volute fan, in order to avoid affecting the fresh air flow in the air duct, it is difficult to find a suitable installation position for some functional modules. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. For this purpose, the utility model provides a volute fan, aiming to lengthen the air duct for installing functional modules and improve the installation convenience.

[0004] The utility model also provides a refrigeration device.

[0005] The volute fan according to the first aspect embodiment of the utility model includes:

[0006] A housing, the housing includes a volute body and an extension section. The volute body is provided with an air cavity and an air inlet communicating with the air cavity. The extension section is connected to the volute body. The extension section forms an air outlet duct. One end of the air outlet duct communicates with the air cavity, and the other end forms an air outlet. The air outlet duct has an installation position for installing functional modules. A functional module is installed in the air outlet duct, and the functional module covers the air outlet.

[0007] An impeller, the impeller is installed in the air cavity.

[0008] For the volute fan according to the embodiment of the utility model, an air cavity is formed in the volute body, the impeller is installed in the air cavity, and the rotation of the impeller realizes the fresh air circulation through the air inlet and the air outlet. At the same time, an extension section is connected in the air outlet direction of the volute body. The extension section forms an air outlet duct communicating with the air cavity, and the air outlet duct can lead the air in the air cavity out. Moreover, through the lengthened air outlet duct, one or more functional modules can be installed, and the fan functional modules can be freely combined. The installation is convenient and does not affect the rotation of the impeller. In addition, the functional module covers the air outlet, and the air discharged from the air outlet duct passes through the functional module and then is discharged from the air outlet, improving the air outlet quality.

[0009] According to an embodiment of the utility model, the thickness of the extension section is greater than the thickness of the volute body.

[0010] According to one embodiment of the utility model, the inner wall of the air outlet duct is formed with a first wall surface and a second wall surface which are arranged opposite to each other, and a first guide slope is provided at one end of the first wall surface adjacent to the air cavity, and the first guide slope gradually inclines away from the second wall surface in a direction away from the air cavity.

[0011] According to an embodiment of the present invention, a second inclined guide surface is provided at one end of the second wall surface adjacent to the wind cavity, and the second inclined guide surface gradually inclines away from the first wall surface in a direction away from the wind cavity.

[0012] According to an embodiment of the utility model, a limiting protrusion is provided on one end of the inner wall of the air outlet duct adjacent to the air outlet, and the limiting protrusion stops and limits the functional module.

[0013] According to an embodiment of the utility model, the functional module is one or a combination of two or more of an ultraviolet sterilization lamp, a deodorization module, and an ion electric field sterilization module.

[0014] According to an embodiment of the utility model, an installation cavity is further provided in the extension section, and the installation cavity is located beside the air outlet duct, and a through passage communicating with the installation cavity is opened on the inner wall of the air outlet duct.

[0015] According to an embodiment of the utility model, the width of the extended section is greater than or equal to the diameter of the volute body, and the air outlet duct and the installation cavity are arranged side by side in the extended section.

[0016] According to an embodiment of the utility model, the extended section is provided with a wire outlet hole on a side away from the air outlet duct, and the wire outlet hole is connected to the installation cavity.

[0017] According to an embodiment of the present invention, the volute body and the extension section are integrally formed.

[0018] According to the second aspect of the present invention, a refrigeration device comprises a machine body and the above-mentioned volute fan, wherein the volute fan is arranged on the machine body.

[0019] According to the refrigeration equipment of the embodiment of the utility model, it includes the above-mentioned volute fan, and therefore has all the technical effects of the above-mentioned volute fan, which will not be repeated here.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of a volute fan provided by an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of the housing of the volute fan provided by an embodiment of the present invention from a first perspective;

[0024] Figure 3 is a schematic structural diagram of the housing of the volute fan provided by an embodiment of the present invention from a second perspective;

[0025] Figure 4 is an exploded view of the housing of the volute fan provided by an embodiment of the present invention from a first perspective;

[0026] Figure 5 is an exploded view of the housing of the volute fan provided by an embodiment of the present invention from a second perspective.

[0027] Reference numerals:

[0028] 1. Housing; 11. Volute body; 111. Air cavity; 112. Air inlet; 12. Extension section; 121. Air outlet duct; 122. First guiding inclined surface; 123. Second guiding inclined surface; 124. Limit projection; 125. Penetrating channel; 126. Wire outlet hole; 127. Installation cavity; 128. Protection projection; 2. Impeller; 31. Upper shell; 32. Lower shell. Detailed implementation manners

[0029] The following will further describe in detail the implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0030] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present utility model and for simplification, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0032] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0034] Please refer to Figure 1 and Figure 2, the volute fan according to the first aspect embodiment of the present utility model includes a housing 1 and a wind wheel 2. The housing 1 includes a volute body 11 and an extension section 12. The volute body 11 is provided with a wind cavity 111 and an air inlet 112 communicating with the wind cavity 111. The extension section 12 is connected to the volute body 11. The extension section 12 forms an air outlet duct 121. One end of the air outlet duct 121 communicates with the wind cavity 111, and the other end forms an air outlet. The air outlet duct 121 has an installation position for installing a functional module. A functional module is installed in the air outlet duct 121, and the functional module covers the air outlet; the wind wheel 2 is installed in the wind cavity 111.

[0035] For the volute fan according to the embodiment of the present utility model, a wind cavity 111 is formed in the volute body 11, the wind wheel 2 is installed in the wind cavity 111, and the rotation of the wind wheel 2 realizes the fresh air circulation through the air inlet 112 and the air outlet. At the same time, an extension section 12 is connected in the air outlet direction of the volute body 11. The extension section 12 forms an air outlet duct 121 communicating with the wind cavity 111, and the air outlet duct 121 can lead the air in the wind cavity 111 out. Moreover, through the lengthened air outlet duct 121, one or more functional modules can be installed, and the functional modules of the fan can be freely combined. Its installation is convenient and does not affect the rotation of the wind wheel 2. In addition, the functional module covers the air outlet, and the air discharged from the air outlet duct 121 passes through the functional module and then is discharged at the air outlet, improving the air outlet quality.

[0036] According to an embodiment of the present utility model, the volute body 11 and the extension section 12 are integrally formed. It can be understood that the extension section 12 is formed by making an extension treatment on the air outlet side of the volute body 11, and the air outlet duct 121 can blow out air in a straight line. Exemplarily, the extension section 12 has a square box structure, and an air outlet duct 121 is formed inside for installing a functional module. The air in the wind cavity 111 is blown out in the air outlet duct 121 and passes through the functional module to realize functions such as deodorization, sterilization, and filtration of the fresh air, so that the volute fan realizes an active air circulation deodorization module. The volute body 11 and the extension section 12 are integrally formed to avoid generating connection gaps and thus avoid air leakage. At the same time, the integral formation of the two is beneficial to reducing the installation steps and improving the production efficiency.

[0037] In one embodiment, the housing 1 includes an upper shell 31 and a lower shell 32. The upper shell 31 and the lower shell 32 are detachably connected, which improves the convenience of assembly and disassembly, facilitating subsequent maintenance or replacement of components. The upper shell 31 and the lower shell 32 are connected to enclose an air cavity 111 and an air outlet duct 121. That is, the upper shell 31 includes a part of the volute body 11 and also includes a part of the extension section 12. The air inlet 112 can be formed on the upper shell 31 or the lower shell 32. The air impeller 2 is disposed corresponding to the air inlet 112, and the outer diameter of the air impeller 2 is larger than the inner diameter of the air inlet 112 to prevent the air impeller 2 from detaching from the air cavity 111 at the air inlet 112. Exemplarily, the air inlet 112 is provided on the upper shell 31. During installation, the air impeller 2 can be installed on the side of the lower shell 32 facing the upper shell 31, and then the upper shell 31 is covered on the lower shell 32 to cover the air impeller 2 and enclose the air cavity 111.

[0038] Exemplarily, the upper shell 31 and the lower shell 32 are connected by snap-fitting, and installation can be carried out without other tools, which is convenient for operation. A plurality of snap structures are provided at intervals on the peripheries of the upper shell 31 and the lower shell 32, and the two are detachably connected through the snap structures. In one embodiment, a first flange protrudes from the periphery of the side of the upper shell 31 facing the lower shell 32. Correspondingly, a lapping groove is provided on the periphery of the side of the lower shell 32 facing the upper shell 31. When the upper shell 31 and the lower shell 32 are connected, the first flange is snap-fitted in the lapping groove, so that the connection part of the upper shell 31 and the lower shell 32 forms a cross-lapping structure to improve the connection sealing performance and prevent air leakage.

[0039] As Figure 2 shown, according to an embodiment of the present invention, the thickness of the extension section 12 is greater than the thickness of the volute body 11. It should be noted that the thickness direction of the volute body 11 is the axial direction of the rotation of the air impeller 2. By setting the thickness of the extension section 12 to be relatively thick, it is beneficial to expand the space of the air outlet duct 121 in the extension section 12, and it can be adapted to install multiple functional modules, further facilitating the installation of functional modules. At the same time, expanding the space of the air outlet duct 121 can ensure that the air volume of the air cavity 111 does not exceed the air outlet space of the air outlet duct 121 to ensure the normal air outlet of the air outlet duct 121.

[0040] Please refer to Figure 4 and Figure 5, according to an embodiment of the present utility model, the inner wall of the air outlet duct 121 forms a first wall surface and a second wall surface which are oppositely arranged. One end of the first wall surface adjacent to the air cavity 111 is provided with a first guiding inclined surface 122, and the first guiding inclined surface 122 inclines away from the second wall surface in the direction away from the air cavity 111. Exemplarily, the first wall surface is the upper wall surface, the second wall surface is the lower wall surface, and the first guiding inclined surface 122 is used to guide the air in the air cavity 111 to smoothly transition to the air outlet duct 121, so as to avoid the generation of turbulent flow or backflow phenomenon and improve the air outlet smoothness. At the same time, the first guiding inclined surface 122 inclines in the direction away from the second wall surface, expanding the air outlet duct 121, thereby expanding the air outlet space and installation space of the extended section 12.

[0041] As Figure 5 shown, according to an embodiment of the present utility model, one end of the second wall surface adjacent to the air cavity 111 is provided with a second guiding inclined surface 123, and the second guiding inclined surface 123 inclines away from the first wall surface in the direction away from the air cavity 111. Similarly to the first guiding inclined surface 122, the second guiding inclined surface 123 is used to guide the air in the air cavity 111 to smoothly transition to the air outlet duct 121, thereby avoiding the generation of turbulent flow or backflow phenomenon and improving the air outlet smoothness. It can be understood that both the first guiding inclined surface 122 and the second guiding inclined surface 123 are at one end of the air outlet duct 121 adjacent to the air cavity 111, and both the first guiding inclined surface 122 and the second guiding inclined surface 123 extend at the connection of the extended section 12 and the volute body 11. The first guiding inclined surface 122 and the second guiding inclined surface 123 incline away from each other in the direction away from the air cavity 111, thereby expanding the air outlet space of the air outlet duct 121, and at the same time, the installation space of the air outlet duct 121 can be expanded, facilitating the installation of various functional modules.

[0042] As Figure 3 shown, according to an embodiment of the present utility model, a limiting protrusion 124 is provided at one end of the inner wall of the air outlet duct 121 adjacent to the air outlet, and the limiting protrusion 124 stops and limits the functional module. It can be understood that the limiting protrusion 124 is used to prevent the functional module from detaching from the air outlet, and through the limiting protrusion 124, the functional module can be fixed in the air outlet duct 121. Exemplarily, a plurality of limiting protrusions 124 are provided in the air outlet duct 121, and the plurality of limiting protrusions 124 stop and abut against the four corners of the functional module to realize the installation and fixation of the functional module and prevent it from shaking. Of course, in other embodiments, the limiting protrusion 124 can also be structures such as a buckle or a plug, as long as the installation and fixation of the functional module can be realized, and it is not limited herein. In one embodiment, a stop protrusion may be provided at one end of the inner wall of the air outlet duct 121 adjacent to the air cavity 111, and the stop protrusion is used to stop and limit the displacement of the functional module in the direction towards the air cavity 111. The stop protrusion and the limiting protrusion 124 cooperate to clamp the functional module to ensure the stable installation of the functional module.

[0043] As Figure 1As shown, according to an embodiment of the present utility model, the functional module is one or a combination of two or more of an ultraviolet germicidal lamp, an odor removal module, and an ion field sterilization module. Exemplarily, the ultraviolet germicidal lamp is installed in the air outlet duct 121, and the ultraviolet germicidal lamp sterilizes the air in the air outlet duct 121 to improve the hygiene effect of the outlet air. Moreover, for a refrigeration device with a sterilization requirement, such as a refrigerator, if the ultraviolet germicidal lamp is installed in the refrigerator storage compartment, the direct irradiation of ultraviolet rays is harmful to the human body. However, when the ultraviolet germicidal lamp is installed in the air outlet duct 121, it can achieve a sterilization effect on the fresh air, and the ultraviolet rays will not directly irradiate the human body, improving safety.

[0044] In other embodiments, in order to remove odors, an odor removal module can be provided in the air outlet duct 121. The odor removal module includes a ceramic body, and a special conversion enzyme is attached to the ceramic body. This conversion enzyme is used to promote the reaction of odor molecules so that the odor molecules are decomposed to achieve the effect of removing odors. It can be understood that the ceramic body is provided with a plurality of through holes distributed in an array, and the air in the air cavity 111 is discharged through these through holes to increase the contact area between the fresh air and the conversion enzyme and improve the odor removal effect.

[0045] To improve the sterilization effect, an ion field sterilization module can also be provided in the air outlet duct 121, and this ion field sterilization module can cooperate with the ultraviolet germicidal lamp for sterilization. Exemplarily, a first electrode extends at one end of the air outlet duct 121 adjacent to the air cavity 111, and a second electrode extends at one end of the air outlet duct 121 adjacent to the air outlet. An ion field is formed between the first electrode and the second electrode.

[0046] Please refer in combination to Figure 3 and Figure 4 , according to an embodiment of the present utility model, an installation cavity 127 is further provided in the extended section 12. The installation cavity 127 is located beside the air outlet duct 121, and a through channel 125 communicating with the installation cavity 127 is opened on the inner wall of the air outlet duct 121. It can be understood that the installation cavity 127 does not prevent the air outlet duct 121 from discharging air, and part of the structure of the functional module, such as a power supply device, a high-voltage module, etc., can be installed through the installation cavity 127. Exemplarily, a high-voltage package is installed in the installation cavity 127. The high-voltage package is connected to the first electrode and the second electrode, and the first electrode and the second electrode can extend out through the through channel 125 to extend in the air outlet duct 121, and an ion field is formed between the first electrode and the second electrode. Optionally, the through channel 125 is strip-shaped and extends along the thickness direction of the extended section 12. The first electrode or the second electrode can adjust the installation position in the extending direction of the through channel 125 to improve its installation adaptability.

[0047] According to an embodiment of the present utility model, the width of the extension section 12 is greater than or equal to the diameter of the volute body 11, and the air outlet duct 121 and the installation cavity 127 are arranged side by side within the extension section 12. It can be understood that the volute body 11 has a circular structure, which is convenient for the installation and rotation of the impeller 2. The extension section 12 is connected to one side of the volute body 11, and the air outlet duct 121 occupies one side of the extension section 12, while the installation cavity 127 occupies the other side of the extension section 12, such that the air outlet duct 121 and the installation cavity 127 are arranged side by side, rationally arranging the space. The air outlet duct 121 is located on the side where the impeller 2 discharges air, facilitating air discharge. Since the width of the air outlet duct 121 does not need to completely cover the diameter of the volute body 11, the remaining space in the extension section 12 after the air outlet duct 121 is opened can be provided with the installation cavity 127 for broadening the installation space and facilitating the installation of each functional module.

[0048] As Figure 3 shown, according to an embodiment of the present utility model, a wire outlet hole 126 is provided on the side of the extension section 12 facing away from the air outlet duct 121, and the wire outlet hole 126 communicates with the installation cavity 127. It can be understood that the wire outlet hole 126 is used for routing wires for the components within the installation cavity 127, so as to avoid affecting the air discharge of the air outlet duct 121. Wires are led out from the wire outlet hole 126 to connect external components, enabling power supply to the functional modules, such as power supply to an ultraviolet germicidal lamp, an ion field sterilization module, etc. In one embodiment, a protective protrusion 128 is convexly provided on the outer wall surface of the extension section 12, and the protective protrusion 128 is located beside the wire outlet hole 126. It can be understood that the protective protrusion 128 is used to stop and abut against external components, so as to prevent the outer wall surface of the extension section 12 from directly abutting against external components, thereby causing the wires led out from the wire outlet hole 126 to be squeezed and damaged. The side of the protective protrusion 128 facing away from the wire outlet hole 126 is an inclined surface, and this inclined surface can guide external components to move away from the wire outlet hole 126, thus playing a protective role for the wires led out from the wire outlet hole 126.

[0049] The refrigeration device according to the embodiment of the second aspect of the present utility model includes a machine body and the above-mentioned volute fan, and the volute fan is provided in the machine body. The refrigeration device can be a refrigerator, a freezer, an air conditioner, etc., which is not limited herein. Taking a refrigerator as an example, the volute fan can be installed in the refrigerating chamber, the freezing chamber or the refrigeration air duct of the refrigerator. The volute fan utilizes various functional modules, such as an ultraviolet germicidal lamp, an odor removal module, an ion field sterilization module, etc., to improve the freshness preservation effect inside the refrigerator.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the present utility model and not to limit it. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present utility model do not depart from the spirit and scope of the technical solutions of the present utility model, and should all be covered within the scope of the claims of the present utility model.

Claims

1. A volute fan, applied to refrigeration equipment, is characterized in that, Comprising: A housing, the housing includes a volute body and an extension section. The volute body is provided with a wind cavity and an air inlet communicating with the wind cavity. The extension section is connected to the volute body. The extension section forms an air outlet duct. One end of the air outlet duct communicates with the wind cavity, and the other end forms an air outlet. The air outlet duct has an installation position for installing a functional module. A functional module is installed in the air outlet duct, and the functional module covers the air outlet. An impeller, the impeller is installed in the wind cavity.

2. The volute blower according to claim 1, wherein The thickness of the extension section is greater than the thickness of the volute body.

3. The volute blower according to claim 1, characterized in that, The inner wall of the air outlet duct forms a first wall surface and a second wall surface arranged oppositely. One end of the first wall surface adjacent to the wind cavity is provided with a first guiding inclined surface, and the first guiding inclined surface inclines gradually away from the second wall surface in the direction away from the wind cavity.

4. The volute blower according to claim 3, wherein, One end of the second wall surface adjacent to the wind cavity is provided with a second guiding inclined surface, and the second guiding inclined surface inclines gradually away from the first wall surface in the direction away from the wind cavity.

5. The volute blower according to claim 1, wherein, One end of the inner wall of the air outlet duct adjacent to the air outlet is provided with a limiting protrusion, and the limiting protrusion stops and limits the functional module.

6. The volute blower according to claim 1, wherein, The functional module is one or a combination of two or more of an ultraviolet germicidal lamp, an odor removal module, and an ion field sterilization module.

7. The volute blower according to any one of claims 1 to 6, characterized in that, An installation cavity is further provided in the extension section. The installation cavity is located beside the air outlet duct, and a through channel communicating with the installation cavity is opened on the inner wall of the air outlet duct.

8. The volute blower according to claim 7, wherein The width of the extension section is greater than or equal to the diameter of the volute body, and the air outlet duct and the installation cavity are arranged side by side in the extension section.

9. The volute fan according to claim 7, characterized in that, A wire outlet hole is opened on one side of the extension section facing away from the air outlet duct, and the wire outlet hole communicates with the installation cavity.

10. The volute blower according to any one of claims 1 to 6, characterized in that, The volute body and the extension section are integrally formed.

11. A refrigeration device, characterized in that, Comprising a machine body and the volute fan according to any one of claims 1 to 10, and the volute fan is provided on the machine body.

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