Summary of the invention
The object of the invention is to provide a kind of blower fan that can guarantee reliably to install, give vibration and the less centrifugal fan for garbage disposer of noise that brings in the fan operation, problems such as it is relatively poor to have solved the blower fan installation reliability that the conventional garbage processor exists, and vibration and noise be bigger in the running.
Above-mentioned technical purpose of the present invention mainly solves by the following technical programs: it comprises mounting plate and is arranged on the bellows of mounting plate one side, be provided with wind wheel in the cavity that mounting plate and bellows surround, the opposite side of mounting plate is provided with motor, Motor Shaft passes mounting plate and wind wheel is in transmission connection, described mounting plate comprises mounting plate body and assembly department, mounting plate body and assembly department are structure as a whole and by a bending angle transition, sector becomes external corner position and inner corner trim position, the external corner position punching press of described knuckle forms some depressions, correspondingly forms some projectioies at the inner corner trim position of knuckle.Wherein, form depression at the external corner position of the knuckle of mounting plate body and assembly department and form projection at the inner corner trim position, played the effect that is similar to stiffening rib, make the knuckle of mounting plate body and assembly department have enough intensity, thereby blower fan is installed on the garbage disposer by the assembly department of mounting plate, can avoid rocking between assembly department and the mounting plate body, guaranteed the installation reliability of blower fan, thereby reduced the vibration in the fan operation process, reduced the noise in the garbage disposer operation process; In addition, mounting plate of the present invention only needs punching press to machine, and processes comparatively simply, and can not increase cost of material.
As preferably, described depression is the wedge shape that drift angle is an acute angle, and correspondingly described projection also is the wedge shape that drift angle is an acute angle, thereby makes the knuckle of first portion and second portion possess enough intensity.
As preferably, the described external corner position that several are recessed in knuckle equidistantly distributes, thereby makes knuckle intensity unanimity everywhere.
As preferably, the knuckle of described mounting plate body and assembly department is 90 ° of angles, has further improved the intensity of the mounting plate body and the knuckle between the assembly department of mounting plate, has guaranteed the reliability that blower fan is installed.
As preferably, described assembly department is provided with several mounting holes, be provided with a shock reducing structure with center hole in the described mounting hole, described shock reducing structure is by the last laminar body at two ends and following laminar body and be connected laminar body and the Cylindrical object of following laminar body constitutes, and describedly goes up the mounting hole two ends that laminar body and following laminar body lay respectively at described assembly department.The present invention adopts two ends all to have the shock reducing structure structure of laminar body, during installation, mounting screw or bolt pass from the center hole of shock reducing structure, make and do not take place directly to contact between the assembly department of screw or bolt and mounting plate, separate by shock reducing structure between the two, blower fan issuable vibrations in operation process will be absorbed by shock reducing structure, and can not be delivered on the shell of garbage disposer, thereby improved the damping effect of blower fan greatly, and reduced the noise that produces because of vibrations.
As preferably, the last laminar body of described shock reducing structure and following laminar body are disk shape structure, and the external diameter of the described external diameter of going up laminar body and described following laminar body is all greater than the aperture of the mounting hole of described assembly department.
As preferably, the described thickness of going up laminar body is greater than the described thickness of laminar body down, and the described external diameter of laminar body of going up is less than the described external diameter of laminar body down.Wherein, because last laminar body are to contact with the head of screw or bolt, surface of contact is less, and the suffered pressure of last laminar body is bigger, so the Thickness Design that will go up laminar body guarantees good damping effect for the thickness greater than following laminar body can prevent that the laminar body pressurized is excessive and aging.
As preferably, the cup-shaped hatch frame of described wind wheel and comprise the bottom base plate and annulus and some blades that is connected between base plate and the annulus at top, described base plate center is provided with the driving hole that is in transmission connection with Motor Shaft, form wind between the adjacent blades of described some blades and see through the gap, described bellows are provided with the intake opening coaxial with wind wheel, the circumference of bellows is provided with exhaust outlet, air-flow entered the cup-shaped opening of wind wheel from the intake grill of bellows when wind wheel rotated, and discharged from the exhaust outlet of bellows at last through the gap between the wind wheel blade again; The bottom of described wind wheel gradually to top depression, is both and is provided with the through hole that several distribute around driving hole on base plate from the circumference to the center.Wherein, because the blade of wind wheel of the present invention is around the central distribution of wind wheel, in wind wheel, be formed centrally the opening of a cup-like structure, constitute between the opening of cup-like structure and the intake grill and be beneficial to entering of air-flow, thereby make air-flow from the opening of intake grill through cup-like structure, the gap is comparatively smooth and easy from the path that exhaust outlet is discharged at last between blade again, and its structure is also comparatively compact simultaneously; Form depression in the bottom of wind wheel and can reduce friction between wind wheel bottom and the mounting plate, reduce power consumption; Several through holes are formed on the bottom of wind wheel more in addition, can prevent to form negative pressure between wind wheel bottom and the mounting plate, help the smooth rotation of wind wheel.
As preferably, the edge of opening of described bellows and mounting plate are fitted, link together by attachment screw between bellows and the mounting plate, between the edge of opening of bellows and the mounting plate seal ring is set, the outer rim of seal ring is formed with male part, and described male part is provided with the attachment hole that passes for attachment screw; The side that described seal ring contacts with the edge of opening of bellows is formed with the groove that cooperates with the edge of opening convex-concave of bellows.Wherein, an effect of mounting plate is the mounting point that is used for blower fan is installed to garbage disposer, another effect of mounting plate is the cavity that constitutes ccontaining wind wheel with bellows, the present invention is provided with seal ring between the edge of opening of mounting plate and bellows, and by screw with mounting plate, seal ring and bellows install and fix together mutually, improved the sealability between mounting plate and the bellows greatly, air-flow can only be discharged from the outlet of blower fan, thereby guaranteed to be transported to the odor removal deodorizing fully from the gas in the container of depositing exemplary food waste of garbage disposer, guarantee the deodorizing effect of garbage disposer, very convenient in the use; Can further improve sealing between bellows and the mounting plate forming the groove cooperate with the edge of opening of bellows on the seal ring.
As preferably, the exhaust outlet of described bellows forms the cutting graftage part, and the external diameter of cutting graftage part and the internal diameter of airduct match, and the root of cutting graftage part forms a circle block body, is formed with the card body that several point to airducts on the block body, the card body near the end of airduct inboard form block protruding; Periphery, correspondingly described airduct end is formed with the protruding card article that cooperates of card with the card body, and the block body of the end face of airduct and cutting graftage part root offsets; The cross section of the cutting graftage part of described bellows and the cross section of airduct are all rectangular, and described card body is arranged on the relative both sides of the edge of cutting graftage part block body; Be vertical relation between first clamping face that described card is protruding and the cutting graftage part, correspondingly the second clamping face of described airduct is vertical relation with the airduct surface; The protruding end face that is close to airduct of described card forms first inclined-plane, and correspondingly the card article of the described airduct end face that is close to the bellows cutting graftage part forms second inclined-plane.During connection, only need airduct is cooperated with the cutting graftage part grafting that bellows exhaust outlet place forms, when airduct cooperate with the cutting graftage part of bellows case put in place after, the card of card on the body protruding with airduct on the card article clamping be combined together, wherein, the end face of airduct and the block body of cutting graftage part root offset and have limited airduct and cooperate with the excessive of bellows cutting graftage part, card on card body card article protruding and on the airduct cooperates the disengagement that has then prevented between airduct and the bellows, thereby reliably airduct and bellows is linked together and limited moving axially between airduct and the bellows; The cutting graftage part of bellows and the cutting graftage part of airduct all adopt the cross section of rectangle can be convenient to the setting of card body and card article; The second clamping face that blocks first protruding clamping face and airduct all adopts vertical surface can guarantee the reliability of clamping between airduct and the bellows, prevents that both are subjected to the external force effect and throw off; When peg graft in the cutting graftage part of airduct and bellows, first ramp effect on second inclined-plane, airduct card article upper end is can be with card protruding, thereby will block body and push the generation elastic strain open, when airduct cooperate with the cutting graftage part of bellows case put in place after, the card of card on the body protruding with airduct on the card article clamping be combined together, thereby be convenient to assembling between airduct and the bellows cutting graftage part.
Therefore, the present invention has can guarantee that blower fan reliably installs, and gives the vibration and the noise that bring less in the fan operation, compact structure, air-flow path is smooth and easy, favorable sealing property, gas leakage be difficult for to take place, characteristics such as the attended operation of blower fan and airduct is simple, and manufacture cost is lower.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment 1: as shown in Figure 1, one side of mounting plate 1 is provided with bellows 2, be provided with wind wheel 3 in the cavity that mounting plate 1 and bellows 2 surround, the opposite side of mounting plate 1 is provided with motor 4, the shaft of motor 4 passes mounting plate 1 and is in transmission connection with wind wheel 3, the edge of opening 5 of bellows 2 is fitted with mounting plate 1, bellows 2 are formed with four cylindricality protuberances 7 that are provided with at interval near edge of opening 5 places, an end face of cylindricality protuberance 7 flushes with the edge of opening 5 of bellows 2, cylindricality protuberance 7 is provided with tapped hole 8, mounting plate 1 be provided with cylindricality protuberance 7 on tapped hole 8 corresponding through holes 9; Be provided with seal ring 6 between the edge of opening 5 of bellows 2 and the mounting plate 1, the outer rim of seal ring is formed with male part 10, and male part 10 is provided with the attachment hole 11 that passes for attachment screw.As shown in Figure 3, the side that seal ring 6 contacts with the edge of opening 5 of bellows 2 is formed with the groove 12 that cooperates with edge of opening 5 convex-concaves of bellows 2, the male part 10 of seal ring 6 is formed with the arc groove 13 that internal diameter cooperates with cylindricality protuberance 7 external diameters of bellows 2, the side that seal ring 6 contacts with mounting plate 1 is smooth plane structure 15, and attachment screw 14 passes successively to cooperate with the tapped hole 8 of cylindricality protuberance 7 from the attachment hole 11 of the through hole 9 of mounting plate 1 and seal ring 6 mounting plate 1, seal ring 6 and bellows 2 are sealedly and fixedly connected together.
As Fig. 2 and shown in Figure 4, wind wheel 3 cup-shaped hatch frames and comprise the bottom base plate 91 and annulus 92 and a plurality of blade 93 that is connected between base plate 91 and the annulus 92 at top, base plate 91 centers are provided with the driving hole 94 that is in transmission connection with Motor Shaft, the bottom of wind wheel 3 gradually to top depression, is both and is provided with three through holes 98 that distribute around driving hole 94 on base plate from the circumference to the center.Blade equidistantly distributes between the circumference of base plate 91 and annulus 92, form wind between the adjacent blades 93 and see through gap 95, bellows 2 are provided with the intake opening 96 coaxial with wind wheel, the outer end of intake grill 96 forms annular outer 99, the end of air intake skirt 100 is enclosed within the periphery of annular outer 99, and the circumference of bellows 2 is provided with exhaust outlet 97; Air-flow entered the cup-shaped opening of wind wheel from the intake grill of bellows when wind wheel 3 rotated, and discharged from the exhaust outlet of bellows at last through the gap between the wind wheel blade again.
As shown in Figure 5 and Figure 6, mounting plate 1 comprises mounting plate body 81 and assembly department 82, first portion's mounting plate body 81 and assembly department 82 are structure as a whole and by knuckle 83 transition of one 90 ° of angles, knuckle 83 forms external corner position and inner corner trim position, the external corner position punching press of knuckle forms three depression 85 (referring to Fig. 2) of equidistant layout, correspondingly form three projectioies 84 of equidistantly arranging at the inner corner trim position of knuckle, depression and protruding drift angle are the wedge shape that is of acute angle.Wherein, form depression and form projection, played the effect that is similar to stiffening rib, make the knuckle of mounting plate body 81 and assembly department 82 have enough intensity at the inner corner trim position at the external corner position of the knuckle of mounting plate body 81 and assembly department 82.
As shown in Figure 7 and Figure 8, the assembly department 52 of mounting plate 1 is provided with two mounting holes, be provided with a shock reducing structure 54 with center hole 53 in each mounting hole, shock reducing structure 54 is made of the last laminar body 55 at two ends and following laminar body 56 and the Cylindrical object that is connected laminar body 55 and following laminar body 56, and last laminar body 55 and following laminar body 56 lay respectively at the mounting hole two ends of assembly department; All greater than the aperture of the mounting hole of assembly department, the last laminar body of shock reducing structure are disk shape structure with following laminar body to the external diameter of the external diameter of last laminar body and described down laminar body; The thickness of last laminar body is 2 times of following laminar body thickness, and the external diameter of last laminar body is less than the described external diameter of laminar body down.During installation, mounting screw or bolt pass from the center hole of shock reducing structure, make and do not take place directly to contact between the assembly department of screw or bolt and mounting plate, separate by shock reducing structure between the two, blower fan issuable vibrations in operation process will be absorbed by shock reducing structure, and can not be delivered on the shell of garbage disposer, thereby improved the damping effect of blower fan greatly, and reduced the noise that produces because of vibrations.
As Fig. 9, Figure 10 and shown in Figure 11, the exhaust outlet of bellows 2 forms cutting graftage part 41, the internal diameter of the external diameter of cutting graftage part 41 and airduct 42 matches, the cross section of the cutting graftage part 41 of bellows 2 and the cross section of airduct 42 are all rectangular, the root of cutting graftage part 41 forms a circle block body 43, block body 43 is formed with two card bodies 44 that point to airducts on the relative both sides of the edge, card body 44 is protruding 45 near the inboard card that forms in the end of airducts 42, is provided with second seal ring (not expressing among the figure) between the block body of the end face of airduct and bellows cutting graftage part root; Correspondingly periphery, airduct 42 end is formed with the card article 46 that cooperates with the card protruding 45 of card body 44, and the block body 43 of the end face of airduct 42 and cutting graftage part 41 roots offsets; Block between protruding 45 the first clamping face 47 and the cutting graftage part 41 and be vertical relation, correspondingly the second clamping face 48 of airduct 42 is vertical relation with airduct 42 surfaces; Block protruding 45 end faces that are close to airduct 42 and form first inclined-plane 49, correspondingly the card article 46 of airduct 42 end face that is close to the cutting graftage part 41 of bellows 2 forms second inclined-plane 50.During connection, only need airduct is cooperated with the cutting graftage part grafting that bellows exhaust outlet place forms, when airduct cooperate with the cutting graftage part of bellows put in place after, the card of card on the body protruding with airduct on the card article clamping be combined together, wherein, the end face of airduct and the block body of cutting graftage part root offset and have limited airduct and cooperate with the excessive of bellows cutting graftage part, card on card body card article protruding and on the airduct cooperates the disengagement that has then prevented between airduct and the bellows, thereby reliably airduct and bellows is linked together and limited moving axially between airduct and the bellows.