Refrigerator fan assembly and method of assembling the same

Abstract

The application relates to a refrigerator fan assembly and an assembling method thereof, and relates to the technical field of refrigerators.The refrigerator fan assembly comprises a fan cover for being installed on a refrigerator body, a detachable fan fixing base is positioned and installed on one side of the fan cover, an air passing opening is formed in the fan cover, a fan protection cover is arranged on the air passing opening, a motor is fixedly installed on the fan fixing base, a fan is fixedly installed on an output shaft of the motor, and the fan is located in the fan protection cover and coaxial with the air passing opening.The application effectively prevents cold air turbulence, improves the utilization rate of the cold air, and reduces noise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a refrigerator fan assembly and an assembling method thereof. BACKGROUND

[0002] The refrigerator is a common household appliance, which is usually divided into direct-cooling refrigerator and air-cooled refrigerator. The air-cooled refrigerator realizes refrigeration by forced circulation of cold air through the refrigerator fan. The basic principle is to set a cooling refrigerator fan in the compressor cabin. The air in the compressor cabin is forced to circulate under the action of the cooling refrigerator fan, thereby improving the air heat exchange efficiency in the compressor cabin.

[0003] The refrigerator fan assembly fan fixing part and the assembling method thereof can fix and support the refrigerator fan. Generally, the refrigerator fan is fixed in the air duct or directly fixed on the cabinet. If the refrigerator fan is fixed in the air duct, the air duct needs to be designed with air duct components to transmit the cold quantity from the refrigerator fan. The structure is complex, and it will also affect the actual effective capacity of the refrigerator. If the refrigerator fan is directly fixed on the cabinet, the motor and the fan cover of the refrigerator fan are usually fixed on the cabinet by punching holes. This structure is not only inconvenient to install, but also increases the assembly labor intensity. Moreover, because the cabinet of the refrigerator is filled with foaming blowing, the foaming process of the cabinet is limited, and the foaming has shrinkage. Therefore, it is impossible to ensure that the motor and the fan cover are coaxial during installation. Therefore, the wind blown by the refrigerator fan is not consistent when blowing to the wind ring of the fan cover, and there is turbulence, which causes the loss of part of the cold quantity and generates a large noise due to turbulence. At the same time, the motor and the fan cover resonate during work, thereby further increasing the noise.

[0004] In summary, whether using air duct components or directly fixing the refrigerator fan on the cabinet, it will cause the energy consumption of the refrigerator to rise to varying degrees, resulting in the loss of part of the cold quantity and a large noise. SUMMARY

[0005] The purpose of the present application is to provide a refrigerator fan assembly and an assembling method thereof, which reduces the turbulence phenomenon of the wind blowing through the fan cover, thereby improving the utilization rate of the cold quantity and reducing the noise of the refrigerator.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] A refrigerator fan assembly, comprising a fan cover, a detachable fan fixing seat is positioned and installed on one side of the fan cover, a wind passage is formed in the fan cover, a fan protection cover is arranged on the wind passage, a motor is fixedly installed on the fan fixing seat, a fan is fixedly installed on the output shaft of the motor, and the fan is located in the fan protection cover and coaxial with the wind passage.

[0008] The fan fixing seat is provided with a plurality of positioning columns, and the fan cover is provided with bolt columns corresponding to the positioning columns.

[0009] The fan fixing seat comprises a detachable fan base and a fan front seat, and a quick positioning structure is arranged between the fan base and the fan front seat.

[0010] The quick positioning structure comprises a base mounting lug provided on the fan base, a limiting cavity is arranged on the base mounting lug, a limiting protrusion is arranged in the limiting cavity, a front seat mounting lug is arranged on the fan front seat, the front seat mounting lug is inserted into the limiting cavity, a limiting slot corresponding to the limiting protrusion is arranged on the front seat mounting lug, "7-shaped" stop blocks are symmetrically arranged on both sides of the limiting cavity, the opposite two sides of the stop blocks are arranged as inclined surfaces, when the front seat mounting lug is inserted into the limiting cavity, the upper part of the front seat mounting lug abuts against the bottom of the stop block, and the base mounting lug and the front seat mounting lug are fixedly connected through fasteners.

[0011] The base mounting lug is provided with two base mounting lugs which are symmetrically arranged on both sides of the fan base.

[0012] At least one group of stop blocks is arranged on both sides of each limiting cavity.

[0013] A reinforcing rib is arranged between the outer side of the stop block and the base mounting lug.

[0014] The fan front seat comprises an arcuate support, the arcuate support is provided with the front seat mounting lug, an axle hole disc is fixed to the top of the arcuate support, a plurality of claw columns extending to the fan cover are uniformly arranged on the axle hole disc, the claw columns are detachably fixedly connected with the fan cover, and the positioning connection structure is arranged on the claw columns and the fan cover.

[0015] The claw column is provided with three claw columns.

[0016] An assembly method for the above refrigerator fan assembly, comprising the following steps: S1, the motor is fixedly installed on the fan base, the fan front seat is clamped on the fan base and is fastened, the motor clamp is installed between the fan base and the fan front seat, and the fan is installed on the motor; the fan guard cover is fixedly installed on the air passage of the fan cover; S2, the fan front seat and the fan cover connected in step S1 are fixedly installed, forming a refrigerator fan assembly; S3, finally, the fixed refrigerator fan assembly is fixedly installed on the refrigerator body.

[0017] After the above technical scheme is adopted, the refrigerator fan assembly has the following advantages:

[0018] The refrigerator fan assembly comprises a fan cover for installation on a refrigerator body, a detachable fan fixing seat is fixedly installed on one side of the fan cover, an air passage is formed in the fan cover, a fan guard cover is arranged on the air passage, a motor is fixedly installed on the fan fixing seat, a fan is fixedly installed on the output shaft of the motor, and the fan is located in the fan guard cover and is coaxial with the air passage. The fan fixing seat and the fan cover are fixedly connected through positioning, so that the position between the fan fixing seat and the fan cover is unique and stable, the motor is fixedly installed on the fan fixing seat, and then the fan fixing seat is fixed on the fan cover to form a whole, so that the fan on the motor is effectively guaranteed to be coaxial with the fan cover, the air outlet is uniform, the cold air turbulence is effectively prevented, the utilization rate of cold air is improved, and the noise is reduced.

[0019] The positioning connection structure comprises a plurality of positioning columns arranged on the fan fixing seat and a bolt column arranged on the fan cover corresponding to the positioning columns, and the positioning columns and the bolt column are buckled and fixedly connected through fasteners. Through this positioning method, the buckling distance between the positioning columns and the bolt column can be controlled in advance when the fan fixing seat and the fan cover are produced, so that the distance between the fan and the fan cover can be controlled within 4-6 mm, the turbulence is reduced, the noise is reduced, and the utilization rate of cold air is improved.

[0020] The fan fixing seat is arranged as a detachable fan base and a fan front seat, and the motor is clamped between the fan base and the fan front seat, so that the stability and convenience of the motor installation are improved. The quick positioning structure is arranged between the fan base and the fan front seat, so that the stability and consistency of the installation position of the motor on the fan base are guaranteed, and the coaxial precision is further guaranteed.

[0021] The limiting cavity and the "7-shaped" stopper are arranged, so that the fan base and the fan front seat are pre-positioned, and the installation difficulty of the motor is reduced.

[0022] The two base mounting ears are symmetrically arranged on the two sides of the fan base, so that the pre-positioning is stable.

[0023] The fan front seat comprises an arc-shaped support, the arc-shaped support is provided with a front seat mounting ear, the top of the arc-shaped support is fixed with a shaft hole disc, a plurality of claw columns extending to the fan cover are uniformly arranged on the shaft hole disc, the claw columns are detachably fixedly connected with the fan cover, and a positioning connection structure is arranged on the claw columns and the fan cover.

[0024] In summary, the refrigerator fan assembly and the assembling method solve the technical problems of the air-cooled refrigerator in the prior art, such as heat loss, low heat utilization rate and loud noise, the fan fixing seat and the fan cover are fixedly connected through positioning, so that the position between the fan fixing seat and the fan cover is only stable, the motor is fixedly installed on the fan fixing seat, then the fan fixing seat is fixed on the fan cover to form a whole, so that the fan on the motor and the fan cover are coaxial, air out is consistent, air turbulence is effectively prevented, the utilization rate of cold air is improved, and the noise is reduced; the motor and the fan cover are fixed together, resonance caused by the motor and the fan cover being respectively fixed on the refrigerator body is avoided, and the noise is further reduced; in addition, the motor and the fan cover are fixed as a whole, then assembled on the body of the refrigerator, convenient to install, and the installation difficulty is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the refrigerator fan assembly and the assembling method of the application;

[0026] Figure 2 is a top view of the fan cover;

[0027] Figure 3 is a structural schematic view of the fan fixing seat;

[0028] Figure 4 is a structural schematic view of the fan front seat;

[0029] Figure 5 is a structural schematic view of the fan cover;

[0030] Figure 6 is Figure 3 is a local enlarged view of A in FIG. 8;

[0031] Figure 7 is a structural schematic view of the fan bottom;

[0032] In the figure: 1, motor, 2, fan fixed seat, 21, fan base, 211, motor installation positioning hole, 212, fan installation groove, 213, base mounting lug, 214, flange, 215, limiting protrusion, 216, stop block, 2161, inclined surface, 218, reinforcing rib, 22, fan front seat, 222, arched support, 223, front seat mounting lug, 224, threaded column, 225, claw column, 226, claw column mounting lug, 228, shaft hole disc, 23, positioning column, 3, fan cover, 31, air passage, 32, fan cover mounting hole, 33, fan guard, 34, bolt column. DETAILED DESCRIPTION

[0033] The application is further described below in conjunction with the drawings and examples.

[0034] The directions referred to in the specification are based on the directions shown in the drawings and only represent relative positional relationships, not absolute positional relationships.

[0035] As Figure 1 and Figure 3 shown, a refrigerator fan assembly includes a fan fixed seat 2 on which a motor 1 is installed and a fan cover 3 which is detachably installed above the fan fixed seat 2, and the motor 1 is located between the fan fixed seat 2 and the fan cover 3. A positioning connection structure is provided between the fan fixed seat 2 and the fan cover 3. The fan cover 3 is provided with an air passage 31, and an output shaft of the motor 1 is provided with a fan at an end which passes through the air passage 31. The diameter of the air passage 31 is greater than the outer diameter of the fan, so that the fan can pass through the air passage 31, and the fan is coaxial with the air passage 31. The fan cover 3 is fixedly installed with a fan guard 33 which covers the outside of the fan. The fan cover 3 is provided with a plurality of fan cover mounting holes 32 which are used to install the fan cover 3 to the cabinet of the refrigerator.

[0036] As Figure 1 and Figure 3 shown, the fan fixed seat 2 includes a detachably installed fan base 21 and a fan front seat 22, and a quick positioning structure is provided between the fan base 21 and the fan front seat 22, and the motor 1 is clamped between the fan base 21 and the fan front seat 22. The fan base 21 and the fan front seat 22 are respectively provided with a motor installation positioning hole 211 which is used to install the motor 1. By providing the motor installation positioning hole 211, the position of the motor 1 installed on the fan base 21 and the fan front seat 22 can be fixed. The fan cover 3 is detachably installed on the fan front seat 22.

[0037] As Figure 1 , Figure 3 and Figure 7As shown in the drawings, the quick positioning structure comprises base mounting ears 213 arranged on the fan base 21, the fan base 21 is provided with a fan mounting groove 212, the motor 1 is fixedly arranged in the fan mounting groove 212, and a group of base mounting ears 213 are symmetrically arranged on both sides of the fan mounting groove 212. The outer side edge of the base mounting ear 213 is provided with a flange 214 extending to the fan front seat 22, the flange 214 surrounds a limiting cavity, and a limiting protrusion 215 is arranged in the limiting cavity. In this embodiment, in order to accurately install the position, the limiting protrusion 215 is a triangular block, and in actual application, the limiting protrusion 215 can be arranged in a columnar or circular shape according to the requirement, which is not limited in this embodiment. The bottom of the fan mounting groove 212 is provided with the motor mounting positioning hole 211, which is used for positioning and installing the motor 1.

[0038] As shown in the drawings, Figure 3 , Figure 4 and Figure 6 As shown in the drawings, the fan front seat 22 comprises an arched support 222, the arched support 222 is detachably fixed with the fan base 21, and the arch of the arched support 222 and the fan mounting groove 212 surround the installation space of the motor 1. The bottom of the arched support 222 is provided with front seat mounting ears 223 on both sides, the front seat mounting ears 223 are arranged in the limiting cavity in a corresponding manner with the base mounting ears 213, the front seat mounting ears 223 are provided with limiting grooves (not shown in the drawings) corresponding to the limiting protrusions on the front seat mounting ears 223, the limiting protrusions 215 and the limiting grooves are matched, so that the positioning of the front seat mounting ears 223 and the base mounting ears 213 is realized, and the two sides of the limiting cavity are symmetrically provided with “7-shaped” stop blocks 216, the opposite two side surfaces of the stop block 216 are provided with inclined surfaces 2161, when the front seat mounting ears 223 are inserted into the limiting cavity, the upper portion of the front seat mounting ears 223 abuts against the stepped surface of the stop block 216. At least one group of stop blocks 216 is arranged on both sides of each limiting cavity, and in this embodiment, one group of stop blocks 216 is arranged on each limiting cavity. When the front seat mounting ears 223 of the fan front seat 22 are inserted into the limiting cavity, the front seat mounting ears 223 can slide downward along the inclined surface 2161, so that the stop blocks 216 are stretched outward, after the front seat mounting ears 223 break through the stop blocks 216, the front seat mounting ears 223 are inserted into the base mounting ears 213, and the stop blocks 216 are reset, at this time, the upper portion of the front seat mounting ears 223 abuts against the bottom stepped surface of the stop block 216, so that the pre-positioning between the fan front seat 22 and the fan base 21 is realized. The fan base 21 is further provided with a threaded hole (not shown in the drawings), the fan front seat 22 is provided with a threaded column 224 corresponding to the threaded hole, the threaded hole is arranged on the base mounting ear 213, the threaded column 224 is arranged on the front seat mounting ear 223, and the threaded hole and the threaded column 224 are fastened through a bolt, so that the detachable fixed connection between the fan front seat 22 and the fan base 21 is realized. The outer side of the stop block 216 and the base mounting ear 213 are provided with a reinforcing rib 218, so that the strength of the stop block 216 is improved.

[0039] As Figure 3 and Figure 4 shown, the top of the arched support 222 is provided with an axle hole disc 228, which is circular in this embodiment, and a plurality of claw columns 225 extending to the fan cover 3 are uniformly arranged on the axle hole disc 228, three of which are arranged around the axle hole disc 228 in this embodiment, and other numbers can be arranged according to actual needs, which are not limited in this embodiment. The claw columns 225 and the axle hole disc 228 form a cover body, and the claw columns 225 are detachably fixedly connected to the fan cover 3. The positioning and connecting structure described above is arranged on the claw columns 225 and the fan cover 3. The claw columns 225 are provided with claw column mounting ears 226 above. The axle hole disc 228 is provided with a motor mounting positioning hole 211 for fixing the upper end of the motor 1, and the output shaft of the motor 1 passes out of the motor mounting positioning hole 211 on the axle hole disc 228. The arched support 222, the claw columns 225 and the axle hole disc 228 are all provided with fan front seat reinforcing ribs, so as to increase the strength thereof.

[0040] As Figure 3 and Figure 4 shown, the positioning and connecting structure includes a plurality of positioning columns 23 arranged on the claw column mounting ears 226, one of which is arranged on each claw column mounting ear 226 in this embodiment. The fan cover 3 is provided with a bolt column 34 corresponding to the positioning column 23, the positioning column 23 and the bolt column 34 are mutually buckled and fixedly connected through a fastener, and the preferred connecting mode of the application is that a through hole is arranged at the center of the positioning column 23, a threaded insert is inlaid in the bolt column 34, and a bolt is screwed on the threaded insert through the through hole, so as to form the installation of the fan cover 3 and the fan fixing seat 2. This installation realizes the absolute accurate positioning of the fan cover 3 and the fan fixing seat 2, so as to avoid the inaccurate installation precision caused by punching mispositioning and insufficient coaxiality, and the fan cover 3 and the fan fixing seat 2 are locked after completion.

[0041] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, the installation steps of the assembly method of the refrigerator fan assembly of the application are as follows:

[0042] S1: The motor 1 is fixed on the fan base 21, the fan front seat 22 is clamped on the upper surface of the fan base 21, and the fan is fixed after positioning by the quick positioning structure and fixed by a fastener. The fan is installed. The fan protection cover 33 is fixedly installed on the air passage 31 of the fan cover 3;

[0043] S2: The fan front seat 22 and the fan cover 3 connected in step S1 are fixed by a fastener after positioning by the positioning and connecting structure, so as to form the refrigerator fan assembly;

[0044] S3: Finally, the fixed fan fixing device is directly fixed on the refrigerator body by screws.

[0045] The application fixes and connects the fan fixing base and the fan cover, thereby ensuring the unique and stable position between the fan fixing base and the fan cover, fixing and installing the motor on the fan fixing base, then fixing the fan fixing base on the fan cover to form a whole, thereby effectively ensuring that the fan on the motor is coaxial with the fan cover, thereby ensuring consistent air outlet, effectively preventing cold air turbulence, improving the utilization rate of cold air, reducing noise, fixing the motor and the fan cover together to avoid resonance caused by fixing the motor and the fan cover on the refrigerator body, further reducing noise, and assembling the motor and the fan cover to the refrigerator body after fixing them as a whole, thereby facilitating installation and greatly reducing the difficulty of installation.

[0046] The application is not limited to the above specific embodiments, and various changes made by those skilled in the art without creative labor are within the protection scope of the application.

Claims

1. A refrigerator fan assembly, characterized by, The fan cover is provided with a detachable fan fixing seat on one side, the fan cover is provided with an air passage, the air passage is provided with a fan protection cover, the fan fixing seat is fixedly provided with a motor, the output shaft of the motor is fixedly provided with a fan, the fan is located in the fan protection cover and is coaxial with the air passage; the fan fixing seat comprises a detachable fan base and a fan front seat, the fan base and the fan front seat are provided with a quick positioning structure, the motor is fixedly installed between the fan base and the fan front seat through a motor installation positioning hole, and the fan cover is detachably installed on the fan front seat; The fan fixing seat and the fan cover are provided with a positioning connection structure; The quick positioning structure comprises a base installation lug provided on the fan base, a limiting cavity is arranged on the base installation lug, a limiting protrusion is arranged in the limiting cavity, a front seat installation lug is arranged on the fan front seat, the front seat installation lug is inserted into the limiting cavity, a limiting groove corresponding to the limiting protrusion is arranged on the front seat installation lug, and "7-shaped" stop blocks are symmetrically arranged on the two sides of the limiting cavity.

2. The refrigerator fan assembly of claim 1, wherein, A plurality of positioning columns are arranged on the fan fixing seat, and bolt columns corresponding to the positioning columns are arranged on the fan cover.

3. The refrigerator fan assembly of claim 1, wherein, The base installation lug is provided with two base installation lugs which are symmetrically arranged on the two sides of the fan base.

4. A refrigerator fan assembly according to claim 3, wherein At least one group of stop blocks is arranged on the two sides of each limiting cavity.

5. The refrigerator fan assembly of claim 1, wherein, A reinforcing rib is arranged between the outer side of the stop block and the base installation lug.

6. The refrigerator fan assembly of claim 1, wherein, The fan front seat comprises an arched support, the arched support is provided with the front seat installation lug, the top of the arched support is fixedly provided with an axle hole disc, a plurality of claw columns extending to the fan cover are uniformly arranged on the axle hole disc, the claw columns are detachably fixedly connected with the fan cover, and the positioning connection structure is arranged on the claw columns and the fan cover.

7. A refrigerator fan assembly according to claim 6, wherein The claw column is provided with three claw columns.

8. An assembly method for the refrigerator fan assembly of claim 1, characterized in that, The method comprises the following steps: S1, the motor is fixedly installed on the fan base, the fan front seat is clamped on the fan base and is fastened, the motor is clamped between the fan base and the fan front seat, and the fan is installed on the motor; the fan protection cover is fixedly installed on the air passage of the fan cover; S2, the fan front seat and the fan cover connected in step S1 are fixedly installed, forming a refrigerator fan assembly; S3, finally, the fixed refrigerator fan assembly is fixedly installed on the refrigerator body.

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