CN220435064U

CN220435064U - Low-noise combined electric fan

Info

Publication number: CN220435064U
Application number: CN202322142813.1U
Authority: CN
Inventors: 何润丰; 何平
Original assignee: Jiangsu Kechuang Electric Appliance Co ltd
Current assignee: Jiangsu Kechuang Electric Appliance Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-02
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a low-noise combined electric fan, which comprises a base, wherein a telescopic sleeve is arranged above the base; this kind of low noise combination formula electric fan, through servo motor, the connecting block, ball bearing, the transfer line, the setting of fan blade and guide vane, when combination formula electric fan used, when servo motor drives the transfer line and rotates the fan blade, can produce not little noise, drive the transfer line through servo motor and rotate in connecting block and ball bearing inside, afterwards drive movable block and fan blade through the transfer line and rotate, ball in the ball bearing rotates in the ball bearing, and the transfer line rotates along with ball bearing inside, such effect is the same with oiliness bearing, strengthen the rotatory smoothness nature of fan blade, and through the guide vane that sets up on the fan blade, the pneumatic performance of fan blade has been improved, make the fan amount of wind increase and noise reduction, with dispersing into broader spectrum section, the energy that the fan blade dominant frequency carried then is further weakened.

Description

Low-noise combined electric fan

Technical Field

The utility model relates to the technical field of electric fans, in particular to a low-noise combined electric fan.

Background

The electric fan is also called fan, fan for short, is a household appliance which uses motor to drive fan blade to rotate so as to make air flow in acceleration, mainly used for cooling and relieving summer heat and circulating air, and the electric fan is divided into combined electric fan, the combined electric fan can be disassembled and assembled, the electric fan can produce vibration when running, the vibration can produce noise, and the excessive noise generally adopts oil bearing, and the oil bearing can strengthen the fluency of the rotation of the electric fan through lubricating grease.

The existing combined electric fan basically adopts an oil-containing bearing, although the noise of the oil-containing bearing is low under the condition that grease is sufficient in the early stage, as the service time is longer, the grease evaporates, more vibration is generated by increasing the gap between a stator and a rotor, so that the noise is loud, and the number of fan blades is reduced, vibration and air flow are reduced, so that the noise is reduced, but the fan blades are reduced, the size of the blown air of the electric fan is also influenced, and therefore, the low-noise combined electric fan is required to be provided.

Disclosure of Invention

The present utility model is directed to a low noise combined electric fan, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low noise combination formula electric fan, includes the base, the top of base is provided with flexible cover, the inside swing joint of flexible cover has the telescopic link, the top of telescopic link is provided with the adjustable shelf, one side of adjustable shelf is provided with the link, the inside of link is provided with small-size motor, small-size motor's upper end is provided with the shell, the inside of shell is provided with servo motor, servo motor's one end is provided with the connecting block, the one end of connecting block is provided with ball bearing, ball bearing's inside is provided with the transfer line, the externally mounted of transfer line has the stopper, anticlockwise external screw thread has been seted up on the one end surface of transfer line, the outside swing joint of transfer line has the movable block, the outside of movable block all is provided with the fan blade, one side of fan blade all is provided with the guide vane, the one end swing joint of transfer line has the enclosing cover.

Preferably, one side of the telescopic sleeve is movably connected with a screw, and one end of the screw is provided with an anti-skid block.

Preferably, the transmission rod and the ball bearing form a rotary structure through the connecting block, and the ball bearing is movably connected with the transmission rod.

Preferably, the movable block forms a limiting structure with the transmission rod through a limiting block, and the limiting block and the transmission rod are integrally arranged.

Preferably, the outer cover is in threaded connection with the transmission rod through a counterclockwise external thread, and the inner dimension of the outer cover is matched with the outer dimension of the transmission rod.

Preferably, the outside of connecting block is provided with the back protective cover, one side of back protective cover all is provided with the fixed block, the inside of fixed block is run through there is the bolt, the draw-in groove has all been seted up on one side surface of back protective cover, one side of back protective cover is provided with the front protective cover, one side of front protective cover all is provided with the fixture block.

Preferably, the rear protective cover is movably mounted with the front protective cover through bolts, and the bolts are arranged on the rear protective cover at equal intervals.

Preferably, the clamping groove formed in one side of the rear protective cover is connected with the clamping block formed in one side of the front protective cover in a clamping mode, and the clamping groove is matched with the clamping block for use.

Compared with the prior art, the utility model has the beneficial effects that:

1. the low-noise combined electric fan is characterized in that when the combined electric fan is used, small noise is generated when the fan rotates along with the transmission rod driven by the servo motor, the transmission rod is driven by the servo motor to rotate in the connection block and the ball bearing, then the movable block is driven by the transmission rod to rotate with the fan blade, balls in the ball bearing rotate in the ball bearing, the transmission rod rotates along with the ball bearing, the effect is the same as that of an oil-containing bearing, the smoothness of the rotation of the fan blade is enhanced, the pneumatic performance of the fan blade is improved through the guide plate arranged on the fan blade, the noise is increased and reduced, the energy carried by the main frequency of the fan blade is further weakened by being dispersed into a wider spectrum;

2. according to the low-noise combined electric fan, through the arrangement of the rear protective cover, the fixing block, the bolt, the clamping groove, the front protective cover and the clamping block, when the combined electric fan needs to be disassembled from the rear protective cover and the front protective cover, the rear protective cover and the front protective cover can be assembled through the arrangement of the clamping groove and the clamping block, so that the rear protective cover and the front protective cover can be aligned to each other conveniently, the fixing block and the bolt are arranged, the firmness of the rear protective cover and the front protective cover is enhanced, the occurrence of loosening is avoided, the assembly performance is improved, and the connection firmness of the rear protective cover and the front protective cover is enhanced;

3. this low noise combination formula electric fan through the setting of flexible cover, telescopic link, screw rod, non slipping spur, adjustable shelf, link, small-size motor and shell, utilizes the setting of flexible cover and telescopic link, can go up and down whole device, utilizes the screw rod to promote the non slipping spur and carries out spacing fixedly to the telescopic link, and the fan blade needs to rotate when swinging simultaneously, through the setting of small-size motor, the drive shell rotates simultaneously with the structure of one side, and such setting has improved the practicality.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the telescopic sleeve of the present utility model;

FIG. 3 is a schematic view of the structure of the housing of the present utility model;

FIG. 4 is a schematic view of the structure of the transmission rod of the present utility model;

FIG. 5 is a schematic view of a baffle according to the present utility model;

fig. 6 is a schematic structural diagram of a rear protective cover and a front protective cover according to the present utility model.

In the figure: 1. a base; 2. a telescopic sleeve; 3. a telescopic rod; 4. a screw; 5. an anti-skid block; 6. a movable frame; 7. a connecting frame; 8. a small motor; 9. a housing; 10. a servo motor; 11. a connecting block; 12. a ball bearing; 13. a transmission rod; 14. a limiting block; 15. an external counterclockwise thread; 16. a movable block; 17. a fan blade; 18. a deflector; 19. an outer cover; 20. a rear protective cover; 21. a fixed block; 22. a bolt; 23. a clamping groove; 24. a front protective cover; 25. and (5) clamping blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model provides a low noise combination formula electric fan, including base 1, the top of base 1 is provided with flexible cover 2, the inside swing joint of flexible cover 2 has telescopic link 3, one side swing joint of flexible cover 2 has screw rod 4, the one end of screw rod 4 is provided with non slipping spur 5, utilize flexible cover 2 and telescopic link 3's setting, can go up and down whole device, utilize screw rod 4 to promote non slipping spur 5 to carry out spacing fixed to telescopic link 3, the top of telescopic link 3 is provided with movable frame 6, one side of movable frame 6 is provided with link 7, the inside of link 7 is provided with small-size motor 8, the upper end of small-size motor 8 is provided with shell 9, the inside of shell 9 is provided with servo motor 10, servo motor 10's one end is provided with connecting block 11.

One end of connecting block 11 is provided with ball bearing 12, ball bearing 12's inside is provided with transfer line 13, transfer line 13 constitutes revolution mechanic through connecting block 11 and ball bearing 12, ball bearing 12 and transfer line 13 swing joint, drive transfer line 13 through servo motor 10 and rotate in connecting block 11 and ball bearing 12 inside, afterwards drive movable block 16 and fan blade 17 through transfer line 13 and rotate, the ball in ball bearing 12 rotates in ball bearing 12, and transfer line 13 rotates along with ball bearing 12 inside, such effect is the same with oiliness bearing, the externally mounted of transfer line 13 has stopper 14.

The anti-clockwise external thread 15 is arranged on one end surface of the transmission rod 13, the movable block 16 is movably connected with the outer part of the transmission rod 13, the movable block 16 forms a limiting structure with the transmission rod 13 through the limiting block 14, the limiting block 14 and the transmission rod 13 are integrally arranged, the movable block 16 and the fan blade 17 are convenient to mount and dismount through the arrangement of the limiting block 14, the fan blade 17 is arranged outside the movable block 16 in the process of preventing rotation, the guide vane 18 is arranged on one side of the fan blade 17, the outer cover 19 is movably connected with one end of the transmission rod 13, the outer cover 19 is in threaded connection with the transmission rod 13 through the anti-clockwise external thread 15, the inner size of the outer cover 19 is identical with the outer size of the transmission rod 13, the anti-clockwise external thread 15 arranged at one end of the transmission rod 13 is used for preventing the outer cover 19 from rotating down when the fan blade 17 is prevented from rotating, and the outer cover 19 cannot be loosened in the process of rotating the fan blade 17 through the arrangement of the anti-clockwise external thread 15.

Referring to fig. 1, fig. 4 and fig. 6, the rear protection cover 20 is arranged on the outside of the connecting block 11, the fixing blocks 21 are arranged on one side of the rear protection cover 20, the bolts 22 penetrate through the inside of the fixing blocks 21, the clamping grooves 23 are formed in one side surface of the rear protection cover 20, the front protection cover 24 is arranged on one side of the rear protection cover 20, the rear protection cover 20 is movably mounted with the front protection cover 24 through the bolts 22 through screws, the bolts 22 are arranged on the rear protection cover 20 at equal intervals, the firmness of the rear protection cover 20 and the front protection cover 24 is enhanced through the arrangement of the fixing blocks 21 and the bolts 22, the occurrence of loosening is avoided, the clamping blocks 25 are arranged on one side of the front protection cover 24, the clamping grooves 23 formed on one side of the rear protection cover 20 are connected with the clamping blocks 25 in a clamping mode, the clamping grooves 23 are matched with the clamping blocks 25, the rear protection cover 20 and the front protection cover 24 can be assembled through the arrangement of the clamping grooves 23 and the clamping blocks 25, the rear protection cover 20 and the front protection cover 24 are conveniently aligned, the fan blades are arranged on the rear protection cover 20 and the front protection cover 24 through the arrangement of the front protection cover 24, the fan blades are arranged, the safety blades are prevented from being caused in the accident situation of a user in the running process, and the accident is avoided.

When the low-noise combined electric fan is used, firstly, the movable block 16 and the fan blades 17 are sleeved on the transmission rod 13, the position of the movable block 16 is aligned by utilizing the limiting block 14 on the transmission rod 13 to play a limiting role, after the movable block 16 is pushed into the transmission rod 13, the movable block 16 is aligned into the anticlockwise external thread 15 at one end of the transmission rod 13 by utilizing the outer cover 19, the movable block 16 is limited and fixed through anticlockwise rotation, then the clamping block 25 at one end of the front protective cover 24 is aligned into the clamping groove 23 formed in one side surface of the rear protective cover 20 to be assembled and clamped, then the firmness of the rear protective cover 20 and the front protective cover 24 is enhanced by rotating the bolts 22 in the fixed block 21 at one side of the rear protective cover 20, then the telescopic rod 3 is pulled out of the telescopic sleeve 2 according to the required height of a user, and after the telescopic rod 3 is pulled out to a proper height, the telescopic rod 5 is pushed by rotating the screw 4 to limit and fixed.

After the assembly, switch on the external power supply, turn on the switch of the servomotor 10, will produce the magnetic field when the electric current passes the motor coil, will produce the magnetic force to produce the turning force and drive the transfer lever 13 to rotate in the ball bearing 12, the transfer lever 13 rotates and drives the movable block 16 and wind blade 17 to rotate, through setting up of the ball bearing 12, strengthen the smoothness of rotation, reduce the noise, simultaneously through the air deflector 18 set up on the fan blade 17, improved the aerodynamic performance of the fan blade 17, make the fan amount of wind increase and reduce the noise, with dispersing into the wider frequency spectrum section, when the user needs to turn on the switch of the small-sized motor 8, will produce the magnetic field when the electric current passes the motor coil, will produce the magnetic force, make the rotor of the motor produce the turning force, thus produce the turning force and drive the shell 9 and servo motor 10 and fan blade 17 structure on one side turn off the small-sized motor 8 after turning to the required position, after not using the device, turn off the switch of the servomotor 10, cut off the external power, the small-sized motor 8 can be: 68KTYZ, the type of the servo motor 10 may be: YE2-132S-4, the use process of the low noise combined type electric fan is completed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low noise combination formula electric fan, includes base (1), its characterized in that: the utility model discloses a telescopic device for a water heater, including base (1), telescopic sleeve (2)'s inside swing joint has telescopic link (3), telescopic link (3)'s top is provided with adjustable shelf (6), one side of adjustable shelf (6) is provided with link (7), the inside of link (7) is provided with miniature motor (8), the upper end of miniature motor (8) is provided with shell (9), the inside of shell (9) is provided with servo motor (10), servo motor (10)'s one end is provided with connecting block (11), connecting block (11) one end is provided with ball bearing (12), ball bearing (12)'s inside is provided with transfer line (13), the externally mounted of transfer line (13) has stopper (14), anticlockwise external screw thread (15) have been seted up on one end surface of transfer line (13), the outside swing joint of movable block (16) all is provided with fan blade (17), one side of fan blade (17) is provided with driving blade (19), driving blade (19) all is provided with on one side of driving blade (18).

2. The low-noise combined electric fan according to claim 1, wherein one side of the telescopic sleeve (2) is movably connected with a screw rod (4), and one end of the screw rod (4) is provided with an anti-skid block (5).

3. The low-noise combined electric fan according to claim 1, wherein the transmission rod (13) and the ball bearing (12) form a rotating structure through the connecting block (11), and the ball bearing (12) is movably connected with the transmission rod (13).

4. The low-noise combined electric fan according to claim 1, wherein the movable block (16) and the transmission rod (13) form a limiting structure through a limiting block (14), and the limiting block (14) and the transmission rod (13) are integrally arranged.

5. A low noise combined electric fan according to claim 1, characterized in that the outer cover (19) is screwed with the transmission rod (13) by means of a counter-clockwise external thread (15), the inner dimension of the outer cover (19) being in line with the outer dimension of the transmission rod (13).

6. The low-noise combined electric fan according to claim 1, wherein a rear protective cover (20) is arranged outside the connecting block (11), one side of the rear protective cover (20) is provided with a fixing block (21), a bolt (22) penetrates through the fixing block (21), a clamping groove (23) is formed in one side surface of the rear protective cover (20), a front protective cover (24) is arranged on one side of the rear protective cover (20), and a clamping block (25) is arranged on one side of the front protective cover (24).

7. The low noise combined type electric fan as claimed in claim 6, wherein the rear protective cover (20) is movably mounted between the front protective cover (24) and the bolts (22) through screws, and the bolts (22) are arranged on the rear protective cover (20) at equal intervals.

8. The low noise combined electric fan as claimed in claim 6, wherein the clamping groove (23) formed on one side of the rear protection cover (20) is connected with the clamping block (25) formed on one side of the front protection cover (24) in a clamping manner, and the clamping groove (23) is matched with the clamping block (25).