Small fan convenient to install

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By designing a screw and fastener ring structure that is easy to disassemble and assemble in the fan, combining the positioning mechanism of positioning projections and elastic blocks, as well as the motor's heat dissipation slot and trough, the problems of inconvenient fan disassembly and insufficient motor heat dissipation are solved, and the problem of inconvenient fan dissipation and assemblies is achieved. The fan is conveniently installed and efficiently operated.

CN222254381UActive Publication Date: 2024-12-27TAIZHOU JIAOJIANG HONGYUAN PLASTIC ELECTRIC CO LTD

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Patent Information

Application Number: CN202420761069.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-12
Publication Date: 2024-12-27
Estimated Expiration: 2034-04-12

AI Technical Summary

Technical Problem

During the disassembly and assembly of existing fans, the fixing ring of the mesh cover is small in size due to the small opening and the small nut size, which makes it difficult for people to screw out the nut, and it needs to use a wrench, which is inconvenient to disassemble and assembly.

Method used

A small fan including a housing, a cover and an air outlet assembly is designed to facilitate disassembly and assemble by installing a screw and a fastening ring; positioning protrusions and positioning grooves are provided to position the fastening ring and improve by elastic blocks. Friction force; the motor dissipates heat through the heat dissipation slot and the through slot; the control components include a switch knob and a gear knob to facilitate the operation and control of the fan.

Benefits of technology

It realizes convenient disassembly and assembles the fan, improves the positioning stability of the fastening ring and the heat dissipation ability of the motor, and simplifies the installation and maintenance process of the fan.

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Abstract

The small fan convenient to install comprises a shell, a cover arranged on the shell and an air outlet assembly arranged in the shell, the shell comprises an outer shell and an inner shell arranged on the outer shell, an installation screw is arranged on the inner shell, a through hole is formed in the inner shell, a threaded hole corresponding to the through hole is formed in the outer shell, and the air outlet assembly is arranged in the outer shell. The mounting screw rod penetrates through the through hole and then is in threaded connection in the threaded hole so as to fix the outer shell on the inner shell; a mounting protrusion is arranged on the side, facing the inner shell, of the cover body, a mounting groove for containing the mounting protrusion is formed in the side, deviating from the outer shell, of the inner shell, a fastening ring is arranged on the inner shell, and the mounting protrusion is sealed in the mounting groove through the fastening ring so that the cover body can be fixed to the inner shell; a positioning protrusion is integrally fixed to the fastening ring, a positioning groove for containing the positioning protrusion is formed in the groove wall of the positioning installation groove, an elastic block is arranged on the outer wall of the positioning protrusion, and the elastic block abuts against the groove wall of the positioning groove. The fan has the effect that the cover body and the shell are convenient to disassemble and assemble so that the fan can be conveniently installed and overhauled.

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Description

Technical Field

[0001] The present application relates to the field of fans, and in particular to a small fan that is easy to install. Background Art

[0002] An electric fan is a household appliance that uses an electric motor to drive the blades to rotate to provide cooling and air circulation. Electric fans are mainly composed of fan heads, blades, mesh covers, and control devices. They are widely used in homes, classrooms, offices, shops, hospitals, supermarkets, and hotels.

[0003] For example, a table fan commonly used in people's daily life has a mesh cover part that is covered with a fixing ring with an opening, and then bolts and nuts are installed at the opening to fasten the fixing ring to the covering part of the two mesh cover parts. When the mesh cover needs to be opened, due to the small space at the opening and the small size of the nut, it is not easy for personnel to directly unscrew the nut from the bolt. Therefore, a wrench is needed to tighten the nut, and the bolt is limited when tightening the nut to prevent the bolt from rotating in order to remove the nut. Utility Model Content

[0004] In order to facilitate the disassembly and assembly of the fan, the present application provides a small fan that is easy to install.

[0005] The present application provides a small fan that is easy to install, which adopts the following technical solution:

[0006] A small fan that is easy to install, comprises a shell, a cover body arranged on the shell body and an air outlet assembly arranged in the shell body, the shell body comprises an outer shell and an inner shell arranged on the outer shell, the inner shell is provided with a mounting screw, the inner shell is provided with a through hole, the outer shell is provided with a threaded hole corresponding to the through hole, the mounting screw passes through the through hole and is threadedly connected in the threaded hole to fix the outer shell to the inner shell; the cover body is provided with a mounting protrusion on the side facing the inner shell, the inner shell is provided with a mounting groove for accommodating the mounting protrusion on the side facing away from the outer shell, the inner shell is provided with a fastening ring, the fastening ring closes the mounting protrusion in the mounting groove to fix the cover body to the inner shell.

[0007] By adopting the above technical solution, when the fan is disassembled (generally to inspect the inside of the fan, to inspect the motor or fan blades), the fixing between the outer shell and the inner shell is released by unscrewing the installation screws with a tool, thereby exposing the fan blades, and then the fastening ring is taken out from the installation groove, and then the cover is removed from the inner shell to expose the motor. The fan is assembled in the reverse process (first buckle the cover onto the inner shell, then fasten the cover with the fastening ring, and finally fix the outer shell and the inner shell with the installation screws to complete the assembly); although the fixing rings on the two mesh covers of the common fan are convenient for fitting to the connection of the mesh covers, it is inconvenient to twist the nuts, and the fan is easy to disassemble and assemble.

[0008] Optionally, a positioning protrusion is integrally fixed to the fastening ring, a positioning groove for accommodating the positioning protrusion is opened on the groove wall of the positioning installation groove, an elastic block is provided on the outer wall of the positioning protrusion, and the elastic block abuts against the groove wall of the positioning groove.

[0009] By adopting the above technical solution, the positioning protrusion and the positioning groove are provided to facilitate the positioning of the fastening ring when installing the fastening ring, and the friction and elastic force of the positioning protrusion are increased by the elastic block, so that the positioning protrusion is firmly fixed in the positioning groove to stably fix the fastening ring.

[0010] Optionally, a removal hole is provided on the positioning protrusion.

[0011] By adopting the above technical solution, the taking-out hole is provided to facilitate the user to directly pull out the fastening ring (or insert a thin roller into the taking-out hole to pull out the fastening ring).

[0012] Optionally, the air outlet assembly includes a motor arranged on the cover body, a rotating shaft fixed coaxially with the motor output shaft, and fan blades fixed to the outer wall of the rotating shaft; the cover body is provided with a fixed cover, and the fixed cover covers the motor on the cover body.

[0013] By adopting the above technical solution, the rotating shaft is coaxially fixed with the motor output shaft. When the motor is working, the rotating shaft rotates to rotate the fan blades to output wind; and the fixed cover stably fixes the motor on the cover body.

[0014] Optionally, a mounting seat is provided on the cover body, a mounting cavity for accommodating the power supply motor is opened on the mounting seat, the fixed cover is arranged on the mounting seat, a limit block is provided on the mounting seat, the limit block abuts against the side wall of the motor to limit the motor and the mounting cavity; a fixing screw is provided on the fixed cover, and the fixing screw fixes the fixed cover to the mounting seat.

[0015] By adopting the above technical solution, a mounting seat is provided and the motor is accommodated through the mounting cavity, and the motor is limited and fixed by a limit block, and then the fixing cover is fixed to the mounting seat by a fixing screw to cover the motor in the mounting seat.

[0016] Optionally, a heat dissipation groove is provided on the side wall of the mounting seat, a heat dissipation hole is provided on the bottom wall of the mounting seat, a first through groove is provided on the side wall of the cover body, and a second through groove is provided on the bottom wall of the cover body, and the mounting seat is connected to the outside of the cover body through the heat dissipation groove, the first through groove and the second through groove.

[0017] By adopting the above technical solution, the heat of the motor is directly dissipated through the heat dissipation holes, and the heat dissipation capacity is improved through the heat dissipation slots, the first through slots and the second through slots, thereby preventing the motor from accumulating heat and affecting the operation of the fan.

[0018] Optionally, an extension plate is provided at the bottom of the inner shell, and the extension plate enables the shell to be placed stably.

[0019] By adopting the above technical solution and arranging the extension plate, it is convenient for the housing to stand stably on the ground, so that the fan can be placed stably.

[0020] Optionally, a control component is also included, which includes a switch knob and a gear knob. The switch knob is used to control whether the air outlet component discharges air, and the gear knob is used to control the air outlet strength of the air outlet component.

[0021] By adopting the above technical solution, a control component is set to control the operation of the fan, the start and stop of the fan is controlled by the switch knob, and the air output size of the fan is controlled by the gear knob.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When disassembling the fan, use a tool to unscrew the installation screw to release the fixation between the outer shell and the inner shell, thereby exposing the fan blades, then remove the fastening ring from the installation groove, and then remove the cover from the inner shell to expose the motor. Install the fan in the reverse process to assemble the fan; although the fixing rings on the two mesh covers of the common fan are easy to fit the connection of the mesh covers, it is inconvenient to screw the nuts. This fan is easy to disassemble and assemble;

[0024] 2. The positioning protrusion and the positioning groove are provided to facilitate the positioning of the fastening ring when installing the fastening ring, and the friction and elastic force of the positioning protrusion are increased by the elastic block, so that the positioning protrusion is firmly fixed in the positioning groove to stably fix the fastening ring;

[0025] 3. The heat of the motor is directly dissipated through the heat dissipation holes, and the heat dissipation capacity is improved through the heat dissipation grooves, the first through grooves and the second through grooves, so as to prevent the motor from accumulating heat and affecting the operation of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a small fan that is easy to install according to an embodiment of the present application.

[0027] Figure 2 2 is a schematic structural diagram of a housing of an embodiment.

[0028] Figure 3 It is a schematic structural diagram of the cover body and the inner shell of the embodiment.

[0029] Figure 4 It is a schematic structural diagram of the air outlet assembly of the embodiment.

[0030] Figure 5 It is a schematic structural diagram of a mounting base and a fixing cover of an embodiment.

[0031] Explanation of the accompanying drawings: 1. Shell; 11. Outer shell; 12. Inner shell; 2. Cover body; 3. Air outlet assembly; 31. Motor; 32. Rotating shaft; 33. Fan blade; 4. Control assembly; 41. Switch knob; 42. Shift knob; 5. Mounting screw; 6. Through hole; 7. Threaded hole; 8. Mounting protrusion; 9. Mounting groove; 10. Fastening ring; 13. Positioning protrusion; 14. Positioning groove; 15. Elastic block; 16. Removal hole; 17. Fixed cover; 18. Mounting seat; 19. Mounting cavity; 20. Limit block; 21. Fixing screw; 22. Heat dissipation groove; 23. Heat dissipation hole; 24. First through groove; 25. Second through groove; 26. Extension plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The present application embodiment discloses a small fan that is easy to install. Figure 1 The small fan which is easy to install comprises a shell 1, a cover 2 installed on the shell 1, an air outlet component 3 installed in the shell 1 and a control component 4 installed on the shell 1.

[0034] Reference Figure 1 and Figure 2 The housing 1 includes an outer shell 11 and an inner shell 12 installed on the outer shell 11, a mounting screw 5 is installed on the inner shell 12, a through hole 6 is opened on the inner shell 12, and a threaded hole 7 is opened in the outer shell 11 corresponding to the through hole 6. The mounting screw 5 passes through the through hole 6 and is threadedly connected to the threaded hole 7 to fix the outer shell 11 on the inner shell 12.

[0035] Reference Figure 1 and Figure 3 A mounting protrusion 8 is integrally fixed on the side of the cover body 2 facing the inner shell 12, and a mounting groove 9 for accommodating the mounting protrusion 8 is opened on the side of the inner shell 12 facing away from the outer shell 11. A fastening ring 10 is installed on the inner shell 12. The fastening ring 10 is a plastic with good elasticity. The fastening ring 10 closes the mounting protrusion 8 in the mounting groove 9 to fix the cover body 2 to the inner shell 12.

[0036] Reference Figure 1 and Figure 3 The fastening ring 10 is integrally fixed with a positioning protrusion 13, and a positioning groove 14 for accommodating the positioning protrusion 13 is provided on the groove wall of the positioning installation groove 9. An elastic block 15 is integrally fixed on the outer wall of the positioning protrusion 13, and the elastic block 15 abuts against the groove wall of the positioning groove 14. A removal hole 16 is provided on the positioning protrusion 13.

[0037] Reference Figure 4 and Figure 5The air outlet assembly 3 includes a motor 31 mounted on the cover body 2, a rotating shaft 32 coaxially fixed with the output shaft of the motor 31, and a fan blade 33 fixed to the outer wall of the rotating shaft 32. The cover body 2 is covered with a fixed cover 17, and the fixed cover 17 covers the motor 31 in the cover body 2. A mounting seat 18 is fixed on the cover body 2, and a mounting cavity 19 for accommodating the power supply machine 31 is opened on the mounting seat 18. The fixed cover 17 is mounted on the mounting seat 18, and a limiting block 20 is fixed on the mounting seat 18. The limiting block 20 abuts against the side wall of the motor 31 to limit the motor 31 and the mounting cavity 19. A fixing screw 21 is installed on the fixing cover 17, and the fixing screw 21 fixes the fixing cover 17 on the mounting seat 18. A heat dissipation groove 22 is provided on the side wall of the mounting seat 18, a heat dissipation hole 23 is provided on the bottom wall of the mounting seat 18, a first through groove 24 is provided on the side wall of the cover body 2, and a second through groove 25 is provided on the bottom wall of the cover body 2. The mounting seat 18 is connected to the outside of the cover body 2 through the heat dissipation groove 22, the first through groove 24 and the second through groove 25.

[0038] Reference Figure 1 The inner shell 12 has an extension plate 26 fixed at the bottom thereof, and the extension plate 26 makes the shell 1 stable. The control component 4 includes a switch knob 41 and a gear knob 42. The switch knob 41 is used to control whether the air outlet component 3 is to outlet air, and the gear knob 42 is used to control the air outlet strength of the air outlet component 3.

[0039] The implementation principle of the embodiment of the present application is a small fan that is easy to install. When the fan is disassembled (generally for inspecting the inside of the fan, unobstructed inspection of the motor 31 or the fan blades 33), the installation screws 5 are unscrewed by a tool to release the fixation between the outer shell 11 and the inner shell 12, thereby exposing the fan blades 33, and then the fastening ring 10 is taken out from the installation groove 9, and then the cover body 2 is removed from the inner shell 12 to expose the motor 31. The fan is assembled in the opposite process (first buckle the cover body 2 on the inner shell 12, and then fasten the cover body 2 with the fastening ring 10, and finally fix the outer shell 11 and the inner shell 12 with the installation screws 5 to complete the assembly); although the fixing rings on the two mesh covers of the common fan are easy to fit the connection between the mesh covers, it is inconvenient to screw the nuts. The fan is easy to disassemble and assemble.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A small fan that is easy to install, characterized in that: The invention comprises a shell (1), a cover (2) arranged on the shell (1), and an air outlet assembly (3) arranged in the shell (1); the shell (1) comprises an outer shell (11) and an inner shell (12) arranged on the outer shell (11); a mounting screw (5) is arranged on the inner shell (12); a through hole (6) is provided on the inner shell (12); a threaded hole (7) is provided on the outer shell (11) corresponding to the through hole (6); the mounting screw (5) passes through the through hole (6) and is threadedly connected to the inner shell (12); The cover body (2) is connected to the threaded hole (7) to fix the outer shell (11) to the inner shell (12); a mounting protrusion (8) is provided on the side of the cover body (2) facing the inner shell (12); a mounting groove (9) for accommodating the mounting protrusion (8) is provided on the side of the inner shell (12) facing away from the outer shell (11); a fastening ring (10) is provided on the inner shell (12); the fastening ring (10) closes the mounting protrusion (8) in the mounting groove (9) to fix the cover body (2) to the inner shell (12).

2. The small fan that is easy to install according to claim 1 is characterized in that: The fastening ring (10) is integrally fixed with a positioning protrusion (13); a positioning groove (14) for accommodating the positioning protrusion (13) is provided on the groove wall of the installation groove (9); an elastic block (15) is provided on the outer wall of the positioning protrusion (13); the elastic block (15) abuts against the groove wall of the positioning groove (14).

3. The small fan that is easy to install according to claim 2 is characterized in that: The positioning protrusion (13) is provided with a taking-out hole (16).

4. The small fan that is easy to install according to claim 1 is characterized in that: The air outlet assembly (3) comprises a motor (31) arranged on the cover body (2), a rotating shaft (32) fixed coaxially with the output shaft of the motor (31), and a fan blade (33) fixed to the outer wall of the rotating shaft (32); a fixed cover (17) is provided on the cover body (2), and the fixed cover (17) covers the motor (31) on the cover body (2).

5. The small fan that is easy to install according to claim 4 is characterized in that: The cover body (2) is provided with a mounting seat (18), the mounting seat (18) is provided with a mounting cavity (19) for accommodating a power supply machine (31), the fixed cover (17) is arranged on the mounting seat (18), the mounting seat (18) is provided with a limit block (20), the limit block (20) abuts against a side wall of the motor (31) to limit the motor (31) and the mounting cavity (19); the fixed cover (17) is provided with a fixing screw (21), and the fixing screw (21) fixes the fixed cover (17) to the mounting seat (18).

6. The small fan that is easy to install according to claim 5 is characterized in that: A heat dissipation groove (22) is provided on the side wall of the mounting seat (18), a heat dissipation hole (23) is provided on the bottom wall of the mounting seat (18), a first through groove (24) is provided on the side wall of the cover body (2), a second through groove (25) is provided on the bottom wall of the cover body (2), and the mounting seat (18) is connected to the outside of the cover body (2) through the heat dissipation groove (22), the first through groove (24) and the second through groove (25).

7. The small fan that is easy to install according to claim 1 is characterized in that: An extension plate (26) is provided at the bottom of the inner shell (12), and the extension plate (26) enables the shell body (1) to be placed stably.

8. The small fan that is easy to install according to claim 1 is characterized in that: It also comprises a control component (4), the control component (4) comprising a switch knob (41) and a gear knob (42), the switch knob (41) being used to control whether the air outlet component (3) discharges air, and the gear knob (42) being used to control the air outlet strength of the air outlet component (3).