CN219587812U

CN219587812U - Take absorbing direct current brushless motor scavenger fan

Info

Publication number: CN219587812U
Application number: CN202321343974.0U
Authority: CN
Inventors: 何支峻
Original assignee: Guangdong Junlang Life Appliance Co ltd
Current assignee: Guangdong Junlang Life Appliance Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-08-25
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a direct current brushless motor ventilator with shock absorption, which comprises a shell, fan blades and a stator center post, wherein the stator center post and the fan blades are arranged in the shell; still include the shock pad, the outside of shock pad is formed with the ring groove, the shock pad is formed with the mounting hole, flabellum coaxial rotation connects in the projection portion of stator center pillar, the outside of the lid of stator center pillar is formed with the protruding cardboard portion that circumference evenly distributed set up, be formed with the card hole in the protruding cardboard portion, the outer end of protruding cardboard portion is formed with crowded entry, crowded entry and card hole intercommunication set up, the one end of shock pad is pasted and is connected on the mounting platform of bracing piece, the tank bottom of ring groove is pasted with the inner wall adaptation of card hole and is connected, the edge portion adaptation of card hole is in the ring groove, install the fastener in the mounting hole, fastener and mounting platform spiro union. The shock-absorbing DC brushless motor ventilator has less shock and noise during operation.

Description

Take absorbing direct current brushless motor scavenger fan

Technical Field

The utility model relates to the technical field of ventilation fans, in particular to a direct current brushless motor ventilation fan with a shock absorber.

Background

Currently, ventilation fans may be mounted on glass of a wall or window. The ventilator is provided with a stator center post, a stator of a motor of the ventilator is sleeved outside the stator center post, a fan blade of the ventilator is rotationally connected to the stator center post, a magnetic ring component of the motor of the ventilator is arranged in the fan blade, and the fan blade of the ventilator can vibrate when rotating at a high speed, so that noise is generated when the ventilator operates, and therefore, the ventilator in the prior art is required to be improved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the direct current brushless motor ventilator with shock absorption, which has small shock and noise during operation.

The aim of the utility model is achieved by the following technical scheme.

The utility model discloses a direct current brushless motor ventilator with shock absorption, which comprises a shell and fan blades, wherein a stator center post is arranged in the shell, the fan blades are rotationally connected with the stator center post, a supporting rod is formed in the shell, and a shock pad is arranged between the supporting rod and the stator center post.

Preferably, the outside of shock pad is formed with the ring groove, the shock pad is formed with the mounting hole, the one end of stator center pillar is formed with the lid, the corresponding other end of stator center pillar is formed with boss portion, the flabellum coaxial rotation connect in boss portion, the outside of lid is formed with the protruding cardboard portion that circumference evenly distributed set up, be formed with the draw-in hole on the protruding cardboard portion, the outer end of protruding cardboard portion is formed with the extrusion mouth that is used for the shock pad passes through, the extrusion mouth with the draw-in hole intercommunication sets up, be formed with mounting platform on the bracing piece, the one end of shock pad paste to be connected in on the mounting platform, the tank bottom of ring groove with the inner wall adaptation of draw-in hole is pasted to be connected, the edge adaptation of draw-in hole is in the ring groove, install the fastener in the mounting hole, the fastener with mounting platform spiro union.

Preferably, a reinforcing rib is formed between the outer wall of the cover portion and the convex clamping plate portion.

Preferably, a round corner for guiding the shock pad to be extruded into the clamping hole is formed at the extrusion inlet.

Preferably, the shock pad has a cylindrical shape, and a chord cut surface is formed on the outer portion of the shock pad, and the chord cut surface is abutted against and connected with the outer wall of the cover portion.

Preferably, the shell is formed with a barrel part and a supporting heart cup, the supporting heart cup is coaxially arranged in the barrel part, one end of the supporting rod is connected with the inner wall of the barrel part into a whole, the corresponding other end of the supporting rod is connected with the outer wall of the supporting heart cup into a whole, the cover part and the supporting heart cup are coaxially arranged, a sealing gasket is arranged between the cover part and the supporting heart cup, an elastic deformation convex ring is formed on one end face of the sealing gasket, the elastic deformation convex rings are concentrically distributed, the elastic deformation convex ring is in contact connection with the end face of a cup mouth of the supporting heart cup, a positioning convex edge is formed on the end face of the cup mouth of the supporting heart cup, and the positioning convex edge is enclosed outside the elastic deformation convex ring.

Compared with the prior art, the utility model has the beneficial effects that: the stator center pillar is arranged in the shell, the fan blades are rotationally connected to the stator center pillar, the supporting rods are formed in the shell, and the shock pad is arranged between the supporting rods and the stator center pillar and can buffer and absorb shock of the stator center pillar, so that shock and noise during operation of the ventilator are greatly reduced.

Drawings

Fig. 1 is a schematic perspective view of a ventilation fan according to the present utility model.

Fig. 2 is a schematic perspective view of a casing of the ventilation fan according to the present utility model.

Fig. 3 is a schematic view of a partial structure at a in fig. 2.

Fig. 4 is an exploded view of the ventilator of the present utility model.

Fig. 5 is a schematic sectional partial structure of the ventilator of the present utility model.

Fig. 6 is a schematic perspective view of the housing of the present utility model.

Fig. 7 is a schematic perspective view of a stator center pillar according to the present utility model.

Fig. 8 is a schematic perspective view of a shock pad according to the present utility model.

Fig. 9 is a schematic perspective view of a sealing gasket of the present utility model.

Description of the reference numerals: a housing 1; a cylindrical portion 11; a support bar 12; a mounting platform 121; a support core cup 13; positioning the convex edge 131; a stator center post 2; a cover portion 21; a post portion 22; a convex clamping plate part 23; a card hole 230; an extrusion inlet 231; rounded corners 2311; reinforcing ribs 232; a shock pad 3; a ring groove 301; a groove bottom 3011; a chord tangent plane 302; a mounting hole 303; a sealing gasket 4; elastically deformable convex ring 401; a fan blade 5; a stator assembly 6; a magnetic ring assembly 7; a fastener 8; a circuit board 9.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model relates to a direct current brushless motor ventilator with shock absorption, which comprises a shell 1 and fan blades 5, wherein a stator central column 2 is arranged in the shell 1, the fan blades 5 are rotationally connected with the stator central column 2, a supporting rod 12 is formed in the shell 1, a shock pad 3 is arranged between the supporting rod 12 and the stator central column 2, and the shock pad 3 can be made of silicon rubber. The fan blade 5 is arranged in the shell 1, one end of the shell 1 is provided with a mask, and the other end of the shell 1 corresponding to the mask is provided with a check valve. When the fan blade 5 rotates at a high speed, the stator center post 2 can vibrate because a certain error exists in dynamic balance of the fan blade 5 and the magnetic ring assembly 7; the vibration of the stator center pillar 2 is absorbed through the shock pad 3, so that the vibration intensity of the stator center pillar 2 is reduced, the vibration is prevented from being transmitted to the shell 1, and the noise generated when the ventilator works is greatly reduced.

Further, as shown in fig. 8, the outer portion of the shock pad 3 is formed with a ring groove 301, the shape of the shock pad 3 may be cylindrical, the shock pad 3 is formed with a mounting hole 303, the mounting hole 303 and the ring groove 301 are coaxially arranged, as shown in fig. 7, one end of the stator center post 2 is formed with a cover portion 21, as shown in fig. 5, the cover portion 21 is used for accommodating the circuit board 9, the other end corresponding to the stator center post 2 is formed with a boss portion 22, the boss portion 22 and the cover portion 21 are integrally arranged, the boss portion 22 and the cover portion 21 are coaxially arranged, as shown in fig. 5, the fan blade 5 is coaxially and rotatably connected to the boss portion 22, specifically, a hub shell is formed in the middle of the fan blade 5, the blade of the fan blade 5 is integrally connected to the outer wall of the hub shell, a rotating shaft is inserted into the bottom of the hub shell, and the rotating shaft is rotatably connected to the boss portion 22 through a bearing. As shown in fig. 5, the ventilation fan of the present utility model is provided with a brushless dc motor, a stator assembly 6 of the brushless dc motor is sleeved outside the boss portion 22, a magnetic ring assembly 7 of the brushless dc motor is mounted on the inner wall of the hub shell, and the magnetic ring assembly 7 is sleeved outside the stator assembly 6. As shown in fig. 7, the outer side of the cover 21 is formed with convex clamping plate portions 23 uniformly distributed circumferentially, clamping holes 230 are formed in the convex clamping plate portions 23, the outer end of the convex clamping plate portions 23 is formed with a squeezing opening 231 for the shock pad 3 to pass through, in other words, the width of the squeezing opening 231 is smaller than the inner diameter of the clamping hole 230, the squeezing opening 231 is communicated with the clamping hole 230, as shown in fig. 6, mounting platforms 121 are formed on the support rods 12, the number of the support rods 12 can be three, the number of the convex clamping plate portions 23 can be correspondingly three, as shown in fig. 2 and 3, one end of the shock pad 3 is attached to the mounting platform 121, the groove bottom 3011 of the ring groove 301 is attached to the inner wall of the clamping hole 230 in an adapting manner, as shown in fig. 8, the groove bottom 3011 is an outer cylindrical surface, the edge portion of the clamping hole 230 is adapted to be arranged in the ring groove 301, in other words, the width of the ring groove 301 in the axial direction of the shock pad 3 is adapted to the thickness of the convex clamping plate portions 23, so that the shock pad 3 and the edge portion of the clamping hole 230 are not loose in the axial direction of the shock pad 3, as shown in fig. 8, the mounting platform 121 can be attached to the stator 3, and the mounting platform 2 can be prevented from being detached from the mounting platform 8, and the mounting platform 3 can be attached to the mounting platform 2.

When the brushless DC motor works, the fan blades 5 rotate at a high speed to enable the stator center post 2 to vibrate, and as the groove bottom 3011 of the annular groove 301 is in fit and close connection with the inner wall of the clamping hole 230, the edge part of the clamping hole 230 is fit in the annular groove 301, the vibration of the stator center post 2 is efficiently buffered and absorbed by the shock pad 3, so that the vibration intensity of the ventilation fan during working is further reduced.

Further, as shown in fig. 7, a reinforcing rib 232 is formed between the outer wall of the cover portion 21 and the convex clip plate portion 23, so that it is advantageous to enhance the connection strength of the convex clip plate portion 23 and the outer wall of the cover portion 21.

Further, as shown in fig. 7, rounded corners 2311 for guiding the cushion 3 to be pushed into the catching holes 230 are formed at the push-in openings 231, so that when the cushion 3 is assembled with the convex catching plate portion 23, the push-in openings 231 are aligned with the ring grooves 301 of the cushion 3, and then the cushion 3 is pushed toward the center of the stator center post 2 by hand, the rounded corners 2311 gradually force the bottoms 3011 of the ring grooves 301 to elastically compress and deform, so that the bottoms 3011 of the ring grooves 301 can be pushed into the catching holes 230, in other words, the cushion 3 is easily assembled to the convex catching plate portion 23 by providing the rounded corners 2311.

Further, as shown in fig. 8, the shock pad 3 has a cylindrical shape, and the outer portion of the shock pad 3 is formed with a tangential plane 302, so that the tangential plane 302 is parallel to the mounting hole 303, and as shown in fig. 3, the tangential plane 302 abuts against the outer wall of the connection cover 21, so that the shock pad 3 directly absorbs the shock of the cover 21.

Further, as shown in fig. 6, the casing 1 is formed with a cylindrical portion 11 and a supporting core cup 13, the supporting core cup 13 is coaxially disposed in the cylindrical portion 11, specifically, the fan blades 5 are disposed in the cylindrical portion 11, in other words, the air flow generated when the fan blades 5 rotate passes through the cylindrical portion 11, in other words, the air flow passes between the adjacent supporting rods 12, one end of each supporting rod 12 is connected with the inner wall of the cylindrical portion 11, the other end corresponding to each supporting rod 12 is connected with the outer wall of the supporting core cup 13, the cover 21 and the supporting core cup 13 are coaxially disposed, as shown in fig. 5, a sealing gasket 4 is disposed between the cover 21 and the supporting core cup 13, as shown in fig. 9, an elastic deformation convex ring 401 is formed on one end surface of the sealing gasket 4, and is disposed concentrically with the elastic deformation convex ring 401, for example, the elastic deformation convex ring 401 is disposed concentrically, as shown in fig. 5, the elastic deformation convex ring 401 contacts with the opening end surface 131 of the supporting core cup 13, as shown in fig. 6, a positioning convex ring 131 is formed on the opening end surface 131 of the supporting core cup 13, as shown in fig. 5, the positioning convex ring 131 is disposed coaxially with the supporting ring 131, that is disposed concentrically with the sealing gasket 401, that is prevented from being disposed in the sealing gasket 4, and the sealing gasket is easily disposed in the sealing ring, and the sealing ring is prevented from being deformed well as being disposed in the sealing ring and being in the sealing ring. The positioning flange 131 can facilitate positioning the sealing gasket 4 during assembly of the sealing gasket 4.

Claims

1. The utility model provides a take absorbing DC brushless motor scavenger fan, includes shell (1) and flabellum (5), its characterized in that: the novel fan is characterized in that a stator center column (2) is arranged in the shell (1), the fan blades (5) are rotationally connected to the stator center column (2), a supporting rod (12) is formed in the shell (1), and a shock pad (3) is arranged between the supporting rod (12) and the stator center column (2).

2. The damped dc brushless motor ventilator of claim 1, wherein: the outside of shock pad (3) is formed with ring groove (301), shock pad (3) are formed with mounting hole (303), the one end of stator center pillar (2) is formed with lid (21), the corresponding other end of stator center pillar (2) is formed with projection (22), flabellum (5) coaxial rotation connect in projection (22), the outside of lid (21) is formed with protruding cardboard portion (23) that circumference evenly distributed set up, be formed with card hole (230) on protruding cardboard portion (23), the outer end of protruding cardboard portion (23) is formed with and is used for squeeze into mouth (231) that shock pad (3) passed through, squeeze into mouth (231) with card hole (230) intercommunication sets up, be formed with mounting platform (121) on bracing piece (12), the one end of shock pad (3) paste and be connected in on mounting platform (121), tank bottom (3011) of ring groove (301) with the inner wall adaptation of card hole (230) is formed with card hole (230), install screw-in (8) adaptation hole (230) and mounting platform (8).

3. The damped dc brushless motor ventilator of claim 2, wherein: a reinforcing rib (232) is formed between the outer wall of the cover part (21) and the convex clamping plate part (23).

4. The damped dc brushless motor ventilator of claim 2, wherein: a round corner (2311) for guiding the shock pad (3) to be extruded into the clamping hole (230) is formed at the extruding inlet (231).

5. The damped dc brushless motor ventilator of claim 2, wherein: the appearance of shock pad (3) is cylindric, the outside of shock pad (3) is formed with chord tangent plane (302), chord tangent plane (302) is close to and is connected the outer wall of lid (21).

6. The damped dc brushless motor ventilator of claim 2, wherein: the shell (1) is formed with a barrel part (11) and a supporting heart cup (13), the supporting heart cup (13) is coaxially arranged in the barrel part (11), one end of a supporting rod (12) is connected with the inner wall of the barrel part (11) into a whole, the corresponding other end of the supporting rod (12) is connected with the outer wall of the supporting heart cup (13) into a whole, a cover part (21) and the supporting heart cup (13) are coaxially arranged, a sealing gasket (4) is arranged between the cover part (21) and the supporting heart cup (13), an elastic deformation convex ring (401) is formed on one end face of the sealing gasket (4), the elastic deformation convex rings (401) are concentrically distributed, the elastic deformation convex ring (401) is in contact connection with a cup mouth end face (131) of the supporting heart cup (13), and a positioning periphery (1311) is formed on the cup mouth end face (131) of the supporting heart cup (13), and the positioning convex edge (1311) is arranged outside the elastic deformation convex ring (401).