CN207406510U - Fan - Google Patents

Abstract

The utility model discloses a kind of fan, the fan includes housing and the motor, fan blade and the inducer that are installed on the housing, the motor is equipped with motor shaft, the front end of the motor shaft connects the fan blade, the fan further includes deceleration device, the deceleration device includes the worm gear mechanism being mutually sequentially connected and gear set mechanism, and the rear end of the motor shaft connects the worm gear mechanism, and the inducer connects the gear set mechanism.The noise of the utility model fan is smaller, improves the experience comfort level of user.

Description

Fan

Technical field

The utility model is related to household electrical appliance technical field, more particularly to a kind of fan.

Background technology

At present, most of fan products in the market are all using synchronous motor inducer to be driven to rotate.Specifically, it is existing Fan be by synchronous motor clutch plate to be driven to move, clutch plate movement is so as to driving inducer to rotate.But due to same Step motor speed it is larger it is easy vibrate, generate larger noise, meanwhile, which can also resonate with main motor And generate larger noise.So existing fan, general noise is bigger, reduces the experience comfort level of user.

Utility model content

The main purpose of the utility model is to propose a kind of fan, it is intended to solve the larger technology of existing fan noise and ask Topic.

To achieve the above object, the utility model proposes fan, the fan includes housing and being installed on the housing On motor, fan blade and inducer, the motor is equipped with motor shaft, and the front end of the motor shaft connects the fan blade, the wind Fan further includes deceleration device, and the deceleration device includes the worm gear mechanism being mutually sequentially connected and gear set mechanism, described The rear end of motor shaft connects the worm gear mechanism, and the inducer connects the gear set mechanism.

Preferably, the motor shaft is set in worm screw, and the worm gear mechanism includes the first axostylus axostyle and the second axostylus axostyle, institute The surface for stating the first axostylus axostyle is provided with transmission wrom tooth and motion thread, one end direction of the transmission wrom tooth along first axostylus axostyle Its other end tilts extension, circumferentially extending of the motion thread along first axostylus axostyle, the transmission wrom tooth and the motor Axis engages, and second shaft rod upper sleeve is equipped with the worm gear engaged with the motion thread, and the worm-drive connects the gear Group mechanism.

Preferably, the gear set mechanism includes first gear, second gear and transmission shaft, and the first gear is sheathed on It linking on second axostylus axostyle and with the worm gear, the second gear is engaged with the first gear, and the one of the transmission shaft End connects the second gear, and the other end connects the inducer.

Preferably, second shaft rod upper sleeve is equipped with the first lantern ring and the second lantern ring, and one end of first lantern ring connects The first gear, the direction of the other end towards second lantern ring of first lantern ring are convexly equipped with limited block, and described second One end of lantern ring connects the worm gear, and the other end of second lantern ring is recessed with limiting slot, and the limited block is sticked in described In limiting slot.

Preferably, it is additionally provided with to install the babinet of the deceleration device in the housing, the babinet includes pedestal And the cover board on the pedestal is arranged at, first axostylus axostyle is arranged in the pedestal, and second axostylus axostyle is arranged in the lid Plate.

Preferably, the elastic component is volute spring.

Preferably, the deceleration device further includes elastic component, and the elastic component is sheathed on second axostylus axostyle, and described One end of elastic component is abutted with the first gear, and the other end is abutted with the cover board.

Preferably, be also arranged with Graphite pad on second axostylus axostyle, the Graphite pad be located at the first gear with Between the elastic component.

Preferably, the axis of the transmission shaft is overlapped with the axis of the motor shaft.

Preferably, clutch plate is provided on the inducer, the clutch plate opens up mounting groove, and the transmission shaft is close to institute The side wall for stating one end of clutch plate is equipped with locating platform, and the inside of the mounting groove is equipped with determines with what the locating platform abutted against Bit plane.

The utility model fan replaces synchronous motor by using deceleration device, is produced when can effectively reduce fan use Raw noise.Specifically, the front end connection fan blade of fan electromotor axis, fan blade to be driven to rotate, the rear end of fan electromotor axis leads to It crosses the deceleration device to be connected with inducer, the inducer to be driven to rotate, in the utility model, due to using deceleration device Instead of synchronous motor, avoid the noise generated when synchronous motor vibrates and the synchronous motor and occur altogether with main motor The noise for shaking and generating, it is thus possible to improve the experience comfort level of user.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.

Fig. 1 is a kind of structure diagram of fan provided by the utility model；

Fig. 2 is the decomposition chart of fan shown in FIG. 1；

Fig. 3 is the sectional view of fan shown in FIG. 1；

Fig. 4 is the partial enlarged view of region A in Fig. 3；

Fig. 5 is the structure chart at a visual angle of deceleration device in Fig. 1；

Fig. 6 is the structure chart at another visual angle of deceleration device in Fig. 1.

Drawing reference numeral explanation：

Label	Title	Label	Title
				100	Fan	10	Housing
11	Front housing	12	Rear shell
				13	Supporting rack	20	Motor
21	Motor shaft	30	Fan blade
				40	Inducer	41	Clutch plate
50	Babinet	51	Cover board
				52	Pedestal	60	Deceleration device
61	Worm gear mechanism	611	First axostylus axostyle
				612	Second axostylus axostyle	613	It is driven wrom tooth
614	Motion thread	615	Worm gear
				616	First lantern ring	617	Second lantern ring
62	Gear set mechanism	621	First gear
				622	Second gear	623	Transmission shaft
6231	Locating platform	63	Graphite pad
				64	Elastic component	70	Knob

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower all other embodiments obtained, shall fall within the protection scope of the present invention.

If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction be only used for explain it is opposite between each component under a certain particular pose (as shown in drawings) Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.

It if, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment Two " etc. description is only used for description purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can express or implicitly include at least one A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize The combination of case is not present, also not within the protection domain of the requires of the utility model.

The utility model proposes a kind of fans.Wherein, fan can be box fan, desk fan and stand fan etc..It below will be with It is specifically introduced exemplified by box fan.

In the utility model embodiment, as shown in Figures 1 to 4, which includes housing 10 and is installed on the shell Motor 20, fan blade 30 and inducer 40 on body 10.The motor 20 is equipped with motor shaft 21, and the front end of the motor shaft 21 connects The fan blade 30, the fan 100 further include deceleration device 60, the rear end of the motor shaft 21 by the deceleration device 60 with The inducer 40 connects.

Wherein, the middle part of the housing 10 is equipped with the air passage of front and rear conducting, and the cross-sectional shape in air passage can be circle.Institute It states and supporting rack 13 is provided in air passage, supporting rack 13 includes the mounting portion for installing inducer 40 and multiple for described in fixed The connecting bar of mounting portion, multiple connecting bars are radially set by the inner wall in the mounting portion towards the air passage, And one end of each connecting bar connects the mounting portion, the other end of each connecting bar connects the inner wall in the air passage.Institute It states inducer 40 to be rotatably arranged on mounting portion, the rotation axis of the inducer 40 and the center line weight in the air passage It closes.Specifically, the housing 10 includes front housing 11 and rear shell 12, and the front housing 11 is detachably connected with the rear shell 12, just In the assembly and disassembly of fan 100.

The mounting portion has an accommodating cavity, and motor 20 is installed in the accommodating cavity of the mounting portion, and motor shaft 21 can be with For one, or two.For example, when motor shaft 21 is one, which is disposed through the front and rear of motor 20 Both ends, the front end of motor shaft 21 is connected with fan blade 30, and fan blade 30 to be driven to rotate, rear end and the deceleration device 60 of motor shaft 21 connect It connects, inducer 40 to be driven to rotate.When motor shaft 21 is two, wherein a motor shaft 21 is arranged at the front end of motor 20, separately One motor shaft 21 is arranged at the rear end of the motor 20, and the linkage of two motor shafts 21 is set, and specifically, two motor shafts 21 can To be set by gear-linked.Here, the design of motor shaft 21 is not particularly limited.It below will be by taking a motor shaft 21 as an example It describes in detail.

The deceleration device 60 can be directly connected to inducer 40, can also be connected with the clutch plate 41 on inducer 40 It connects.Specifically, in one embodiment, clutch plate 41 is provided on inducer 40, the rear end of the motor shaft 21 is subtracted by described Speed variator 60 is connected with the clutch plate 41, so can limit inducer by the cooperation between clutch plate 41 and inducer 40 40 rotation and velocity of rotation.

The deceleration device 60 can there are many, such as gear set deceleration device 60,615 worm reduction gear 60 of worm gear, The combination of belt gear deceleration device 60 and 615 worm reduction gear 60 of worm gear and gear set deceleration device 60, does not do herein It is specifically limited, as long as the effect of deceleration transmission can be realized.The rear end of the motor shaft 21 by the deceleration device 60 with Inducer 40 connects, and 20 drive motor shaft 21 of motor rotates, and motor shaft 21 drives inducer by the deceleration device 60 40 rotate, and in the utility model, due to substituting synchronous motor 20 using deceleration device 60 inducer 40 are driven to rotate, can kept away Exempt from due to the noise that vibration occurs for synchronous motor 20 and generates, while can also avoid due to synchronous motor 20 and main motor 20 The noise that (motor 20 for also referring to the utility model) occurs resonance and generate.

In the present embodiment, the deceleration device 60 includes the worm gear mechanism 61 being mutually sequentially connected and gear set machine Structure 62, the rear end of the motor shaft 21 connect the worm gear mechanism 61, and the inducer 40 connects the gear set mechanism 62.It is appreciated that worm gear mechanism 61 has preferable slowing effect, but stability of rotation is poor；And gear set mechanism Generally there is preferable stability of rotation, but slowing effect is bad, it usually needs be engaged using multiple gears, cost It is higher, so in this application, using the mutual cooperation of worm gear mechanism 61 and gear set mechanism 62, can reach preferable Slowing effect and preferable stationarity, cost are relatively low.

There are many drive connection modes of the worm gear mechanism 61 and the gear set mechanism 62, for example, it may be Gear-linked or gear belt transmission.The rear end of the motor shaft 21 can by way of rack and pinion engagement with The worm gear mechanism 61 connects, and can also be connected by way of 615 worm engaging of worm gear with the worm gear mechanism 61 It connects.Here, 20 drive motor shaft 21 of motor rotates, the motor shaft 21 can by the worm gear mechanism 61 with it is described Gear set mechanism 62 drives the inducer 40 to rotate.

The utility model fan 100 replaces synchronous motor 20 by using deceleration device 60, can effectively reduce fan 100 noises generated when using.Specifically, the front end connection fan blade 30 of 100 motor shaft 21 of fan, to drive 30 turns of fan blade Dynamic, the rear end of 100 motor shaft 21 of fan is connected by the deceleration device 60 with inducer 40, to drive 40 turns of the inducer It is dynamic, in the utility model, due to replacing synchronous motor 20 using deceleration device 60, when avoiding synchronous motor 20 and vibrating The noise that the noise of generation and the synchronous motor 20 occur resonance with main motor 20 and generate, it is thus possible to improve user's Experience comfort level.

Further, please with reference to Fig. 5 and Fig. 6, the motor shaft 21 is set in worm screw, the worm gear mechanism 61 Including the first axostylus axostyle 611 and the second axostylus axostyle 612.The surface of first axostylus axostyle 611 is provided with transmission wrom tooth 613 and motion thread 614, the transmission wrom tooth 613 is tilted along one end of first axostylus axostyle 611 towards its other end to be extended, the motion thread 614 along first axostylus axostyle 611 circumferentially extending.The transmission wrom tooth 613 is engaged with the motor shaft 21, second axostylus axostyle It is arranged with the worm gear 615 engaged with the motion thread 614 on 612, the worm gear 615 is sequentially connected the gear set mechanism 62.Specifically, the wrom tooth of the worm gear 615 is tilted along one end of second axostylus axostyle 612 towards its other end and extended.

It should be noted that first axostylus axostyle 616 is substantially vertical setting with second axostylus axostyle 617, it is preferable that institute State the first axostylus axostyle 611 vertically to be extended, and it is described transmission wrom tooth 613 vertically to tilt extend, the transmission spiral shell Line 614 vertically to setting in the shape of a spiral.The motor shaft 21 is engaged with the transmission wrom tooth 613 on first axostylus axostyle 611, institute Worm gear 615 is stated to engage with the motion thread 614 on first axostylus axostyle 611, in this way, the rotation of the motor shaft 21 can drive it is described First axostylus axostyle 611 rotates, and the rotation of the first axostylus axostyle 611 can drive the worm gear 615 to rotate, and the rotation of worm gear 615 can lead to Crossing the gear set mechanism 62 drives inducer 40 to rotate.

The transmission wrom tooth 613 can be integrally formed on first axostylus axostyle 611 or be removably disposed In on first axostylus axostyle 611, for example, the transmission wrom tooth 613 is annularly set, the transmission wrom tooth 613 can be sheathed on On first axostylus axostyle 611.Equally, the motion thread 614 can also be integrally formed on first axostylus axostyle 611, Can be removable installed on first axostylus axostyle 611, specifically, the structure of the motion thread 614 and the knot of worm screw Structure is roughly the same, and the inside of the worm screw is in hollow setting, so the worm screw can be sheathed on first axostylus axostyle 611.

Further, the gear set mechanism 62 includes first gear 621, second gear 622 and transmission shaft 623, described First gear 621 is sheathed on second axostylus axostyle 612 and links with the worm gear 615, the second gear 622 and described the One gear 621 engages, and one end of the transmission shaft 623 connects the second gear 622, and the other end connects the inducer 40. The internal diameter of the second gear 622 is more than the internal diameter of the first gear 621, for example, the internal diameter of the second gear 622 is institute State the internal diameter of first gear 621 2 times, the rotary speed of so described second gear 622 are the rotation of the first gear 621 The 1/2 of speed is so conducive to improve the slowing effect of the deceleration device 60.

Specifically, along preceding rearwardly extending, the worm gear 615 is arranged second axostylus axostyle 612 with the first gear 621 In on second axostylus axostyle 612.It is understood that the worm gear 615 can be fixedly installed on second axostylus axostyle 612 Above or rotatably it is arranged on second axostylus axostyle 612.Equally, the first gear 621 can be fixedly installed on It is arranged on second axostylus axostyle 612 or rotatably on second axostylus axostyle 612.Preferably, the worm gear 615 with The first gear 621 is fixedly installed on second axostylus axostyle 612, in this way, when the worm gear 615 and the first gear During 621 rotation, second axostylus axostyle 612 also and then rotates, and is advantageously implemented the worm gear 615 and the first gear 621 Linkage.

Further, in order to the linkage of the worm gear 615 and the first gear 621, second axis is better achieved The first lantern ring 616 and the second lantern ring 617 (as shown in Figure 5), in one embodiment, second axostylus axostyle can be arranged on bar 612 The first lantern ring 616 and the second lantern ring 617 are arranged on 612, one end of first lantern ring 616 connects the first gear 621, The direction of the other end of first lantern ring 616 towards second lantern ring 617 is convexly equipped with limited block, second lantern ring 617 One end connect the worm gear 615, the other end of second lantern ring 617 is recessed with limiting slot, and the limited block is sticked in institute It states in limiting slot.

In another embodiment, limiting slot can also be opened up on first lantern ring 616, is set on the second lantern ring 617 Put limited block.Wherein, the limited block can be square, wedge-shaped or trapezoidal the shape of limiting slot and the shape of the limited block Shape is adapted to.First lantern ring 616 can be with the first gear 621 in being wholely set, certainly, first lantern ring 616 can also be in be separately set with the first gear 621.Equally, second lantern ring 617 can be in the worm gear 615 It is wholely set, second lantern ring 617 can also be in be separately set with the worm gear 615.

It is to be appreciated that in a preferred embodiment, the axis weight of the axis of the transmission shaft 623 and the motor shaft 21 It closes.Since fan blade 30 can be rotated around the axis of the motor shaft 21, the inducer 40 can turn around the axis of the transmission shaft 623 It is dynamic, be so conducive to inducer 40 and adjust distinguished and admirable, the performance of raising fan 100.

In one embodiment, it is additionally provided with to install the babinet 50 of the deceleration device 60 in the housing 10, it is described Babinet 50 includes pedestal 52 and the cover board 51 being arranged on the pedestal 52.The front side of the pedestal 52 is set in open, described Cover board 51 is covered on the rear side of the pedestal 52.First axostylus axostyle 611 is arranged in the pedestal 52, for example, the first axle Bar 611 can be arranged in the top and bottom of the pedestal 52；Second axostylus axostyle 612 is arranged in the cover board 51.

The deceleration device 60 further includes elastic component 64, wherein, the elastic component 64 can be spring, rubber ring, silica gel Set etc..The elastic component 64 is sheathed on second axostylus axostyle 612 and one end is abutted with the first gear 621, the other end with The cover board 51 abuts.The effect of the elastic component 64 is can to play first gear 621 described in elastic connection and the cover board 51 effect can also be played the role of preventing second axostylus axostyle 612 from moving up and down.Because the deceleration device 60 works When, pass through 615 gear of 615 worm engaging of worm gear and worm gear between the worm gear mechanism 61 and the gear set mechanism 62 Engagement is driven, and second axostylus axostyle 612 can be caused to occur to shift up and down, so being provided with for the elastic component 64 is beneficial to carry The stability of the high deceleration device 60, so as to improve the service life of the deceleration device 60.In a preferred embodiment, the bullet Property part 64 can be volute spring because the stability of volute spring is preferable, second axostylus axostyle 612 can be effectively prevented and sent out Raw displacement up and down.

It further, can be described in order to reduce inhibition of the elastic component 64 to the first gear 621 Be arranged Graphite pad 63 on two shaft lever 612, the Graphite pad 63 be located at the first gear 621 and the elastic component 64 it Between.One end of the Graphite pad 63 is abutted with the first gear 621, the other end and the elasticity of the Graphite pad 63 Part 64 abuts, and so reduces the frictional resistance between the elastic component 64 and the first gear 621, will not interfere described The rotation of one gear 621.

Further, the clutch plate 41 opens up mounting groove, and the transmission shaft 623 is close to one end of the clutch plate 41 Side wall be equipped with locating platform 6231, the inside of the mounting groove is equipped with the positioning plane abutted against with the locating platform 6231 (not shown).One end of the transmission shaft 623 is inserted into the mounting groove, and the locating platform 6231 is supported with the positioning plane It connects, is so conducive to improve the connective stability of the transmission shaft 623 and the clutch plate 41.In addition, the fan 100 also wraps Knob 70 is included, the knob 70 is threadedly coupled with the clutch plate 41.

The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention, Under every utility model in the utility model is conceived, equivalent structure made based on the specification and figures of the utility model Conversion or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of fan, including housing and the motor, fan blade and the inducer that are installed on the housing, the motor is equipped with motor Axis, the front end of the motor shaft connect the fan blade, which is characterized in that the fan further includes deceleration device, the dress that slows down Worm gear mechanism and gear set mechanism including being mutually sequentially connected are put, the rear end of the motor shaft connects the worm and gear Mechanism, the inducer connect the gear set mechanism.

2. fan as described in claim 1, which is characterized in that the motor shaft is set in worm screw, the worm gear mechanism Including the first axostylus axostyle and the second axostylus axostyle, the surface of first axostylus axostyle is provided with transmission wrom tooth and motion thread, the transmission snail Tooth is tilted along one end of first axostylus axostyle towards its other end to be extended, and the motion thread prolongs along the circumferential direction of first axostylus axostyle It stretches, the transmission wrom tooth is engaged with the motor shaft, and second shaft rod upper sleeve is equipped with the worm gear engaged with the motion thread, The worm-drive connects the gear set mechanism.

3. fan as claimed in claim 2, which is characterized in that the gear set mechanism include first gear, second gear and Transmission shaft, the first gear are sheathed on second axostylus axostyle and link with the worm gear, the second gear and described the One gear engages, and one end of the transmission shaft connects the second gear, and the other end connects the inducer.

4. fan as claimed in claim 3, which is characterized in that second shaft rod upper sleeve is equipped with the first lantern ring and second set Ring, one end of first lantern ring connect the first gear, and the other end of first lantern ring is towards second lantern ring Direction is convexly equipped with limited block, and one end of second lantern ring connects the worm gear, and the other end of second lantern ring is recessed limited Position slot, the limited block are sticked in the limiting slot.

5. fan as claimed in claim 3, which is characterized in that be additionally provided with to install the deceleration device in the housing Babinet, the babinet includes pedestal and the cover board that is arranged on the pedestal, and first axostylus axostyle is arranged in the pedestal, institute It states the second axostylus axostyle and is arranged in the cover board.

6. fan as claimed in claim 5, which is characterized in that the deceleration device further includes elastic component, the elastic component set On second axostylus axostyle, and one end of the elastic component is abutted with the first gear, and the other end is abutted with the cover board.

7. fan as claimed in claim 6, which is characterized in that the elastic component is volute spring.

8. fan as claimed in claim 6, which is characterized in that Graphite pad, the stone are also arranged on second axostylus axostyle Ink pad piece is between the first gear and the elastic component.

9. the fan as described in claim 3 to 8 any one, which is characterized in that the axis of the transmission shaft and the motor The axis of axis overlaps.

10. the fan as described in claim 3 to 8 any one, which is characterized in that clutch plate is provided on the inducer, The clutch plate opens up mounting groove, and side wall of the transmission shaft close to one end of the clutch plate is equipped with locating platform, the peace The inside of tankage is equipped with the positioning plane abutted against with the locating platform.