A kind of dust catcher with electric motor damping structure
Technical field
The present invention relates to dust catcher field, be specifically related to a kind of dust catcher with electric motor damping structure.
Background technology
At present, the dust catcher using on market generally all has motor inner cover and outsides cover of electric machinery, wherein outsides cover of electric machinery and Body case of cleaner are fixed together, and are installed with the induced-draught electric motor for generation of negative pressure in motor inner cover, and between motor inner cover and outsides cover of electric machinery, are that directly contact connects.There is following problem in the dust catcher of this traditional structure:
Dust catcher is the motor High Rotation Speed in motor inner cover in use, thereby make motor inner cover produce vibration, motor inner cover and then the drive outsides cover of electric machinery that contact connects with it vibrates, and in the transmittance process of vibration, due to the effect of resonance, cause passing to outsides cover of electric machinery and Body case of cleaner vibratory output is larger, this just makes the operating noise of dust catcher complete machine very large, in the time that user touches dust catcher outer surface with hand, also have the sensation of " numb hand ", reduce user's experience.And conventional dust catcher is reducing the scheme of not reforming aspect vibration, effect does not also have greatly improved.
Summary of the invention
The present invention seeks to: for the problems referred to above, provide a kind of dust catcher with electric motor damping structure, it can weaken the complete machine resonance that causes because of motor High Rotation Speed and because of the complete machine vibrating noise producing that resonates.
Technical scheme of the present invention is: a kind of dust catcher with electric motor damping structure, motor inner cover is hung and is fixed in outsides cover of electric machinery by upper arm.
As preferably, on described outsides cover of electric machinery, form suppending hole, in described suppending hole, be furnished with the damping medium with vertical through holes, described upper arm is suspended in the vertical through holes of described damping medium.
As preferably, described wall built-up comprises connecting pin in the vertical through holes that inserts in described damping medium, be supported on gripper shoe above described damping medium and form for the screw that connecting pin and gripper shoe are fixed together, and wherein the bottom of connecting pin and described motor inner cover are connected as a single entity.
As preferably, described damping medium adopts sponge, rubber or spring to make.
As preferably, the quantity of described upper arm is one or more.
As preferably, described upper arm is four.
Advantage of the present invention is: this dust catcher of the present invention hangs the motor inner cover for mounted motor to be fixed on outsides cover of electric machinery, and isolation completely between motor inner cover and outsides cover of electric machinery, and at motor inner cover and outsides cover of electric machinery hitch point, damping medium is set, thereby block the path that motor oscillating is transmitted to Body case of cleaner by motor inner cover, weaken the vibratory output that motor inner cover transmits to outsides cover of electric machinery, covibration between outsides cover of electric machinery and motor inner cover is disappeared, when work, in motor, cover on Independent Vibration in outsides cover of electric machinery and can have influence on hardly outsides cover of electric machinery, Body case of cleaner Oscillation Amplitude is reduced greatly, thereby the vibrating noise while having reduced dust catcher work, and in the time that user's hand touches dust catcher outer surface, hand picotement greatly weakens even and does not have, promote user's experience.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the partial sectional view of dust catcher in the embodiment of the present invention;
Fig. 2 is the A portion enlarged drawing in Fig. 1;
Wherein: 1-motor inner cover, 2-upper arm, 21-connecting pin, 22-gripper shoe, 23-screw, 3-outsides cover of electric machinery, 4-suppending hole, 5-damping medium, 6-motor, 7-Body case of cleaner.
Detailed description of the invention
Fig. 1 and Fig. 2 have shown a specific embodiment of this dust catcher with electric motor damping structure of the present invention, this dust catcher comprises motor inner cover 1 and is housed in the outsides cover of electric machinery 2 outside motor inner cover 1, wherein in motor inner cover 1, motor 6 is installed, outsides cover of electric machinery 2 is fixed in Body case of cleaner 7.
The key improvements of the present embodiment is: described motor inner cover 1 is hung and is fixed in outsides cover of electric machinery 3 by upper arm 2.Concrete structure is as follows:
On described outsides cover of electric machinery 3, form suppending hole 4, in described suppending hole 4, be furnished with the damping medium 5 of band vertical through holes (not marking in figure), described upper arm 2 is suspended in the vertical through holes of described damping medium 5, and between upper arm 2 and outsides cover of electric machinery 3, directly do not contact and isolation completely, and between whole motor inner cover 1 and outsides cover of electric machinery 3, also isolate completely and directly do not contact.Described damping medium 5 can adopt sponge to make, and can certainly adopt other flexible material such as rubber, spring to make.
In the present embodiment, the detailed structure of described wall built-up 2 can be with reference to shown in Fig. 2: it by inserting in connecting pin 21 in the vertical through holes of described damping medium 5, be supported on gripper shoe 22 above of described damping medium 5 and form for the screw 23 that connecting pin 21 and gripper shoe 22 are fixed together, wherein the bottom of connecting pin 21 and described motor inner cover 1 are connected as a single entity, and connecting pin 21 and motor inner cover 1 are one-body molded.In gripper shoe 22, be provided with vertical installation through hole, on connecting pin 21, be provided with vertical screwed hole.When assembling, first by connecting pin 21 to lower and on penetrate in the vertical through holes of damping medium 5, then gripper shoe 22 is lain in a horizontal plane in above damping medium 5, and the installation through hole in gripper shoe 22 is aimed at the screwed hole on connecting pin 21, then described screw 23 is screwed in to the screwed hole on connecting pin 21 from top to down, thereby connecting pin 21 and gripper shoe 22 are fixed together, and gripper shoe 22 is supported on damping medium 5 and holds the lower motor inner cover 1 of hanging above, and it can not be dropped.
In order to ensure the bonding strength between motor inner cover 1 and outsides cover of electric machinery 3, avoid motor inner cover 1 significantly to rock in outsides cover of electric machinery 3 simultaneously, generally the quantity of described upper arm 2 is arranged to two or more, upper arm 2 described in this example has four.Certainly we also can be arranged to one by described upper arm 2.
When dust catcher work, motor 6 moves and drive motor inner cover 1 vibrates, due to the existence of the damping medium 5 of soft material, the vibration of motor inner cover 1 is released, and motor inner cover 1 and outsides cover of electric machinery 3 straight between isolation completely, thereby effectively reduce the vibration that motor inner cover 1 produces and be delivered to the effect on outsides cover of electric machinery 3, making the Oscillation Amplitude of outsides cover of electric machinery 3 minimum is even zero, and then reduce the vibratory output of Body case of cleaner 7, weaken the complete machine causing because of the motor High Rotation Speed vibrating noise producing that resonates, in the time that staff touches the outer surface of Body case of cleaner 7, no longer have the sensation of " hand fiber crops ".
Certainly, above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow people can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformation or modification that according to the present invention, the Spirit Essence of main technical schemes does, within all should being encompassed in protection scope of the present invention.