CN205006811U - Floated motor of making an uproar that falls - Google Patents

Abstract

The utility model provides a floated motor of making an uproar that falls, includes that motor main part and the motor that contains the motor main part partial at least cover, the cover is equipped with the sealing washer on the motor main part air intake, be equipped with at least one elastic mechanism between motor main part and the motor cover, the elastic mechanism provides holding power or the gravity of pulling force in order to offset the motor main part to the motor main part, each elastic mechanism cover is located on the stop gear, stop gear has a limiting displacement to the motor main part on the elastic mechanism takes place the direction of deformation, elastic mechanism and stop gear make the motor main part can only the in certain extent motion, has limiting displacement to the motor main part, plays vibration/noise reduction's effect, because the part of arranging is few, can not block the air outlet of motor main part around the motor again, guarantees the performance of dust catcher.

Description

Suspended noise reduction motor

technical field

The utility model relates to a suspension type noise-reducing motor, which is used in a vacuum cleaner and belongs to the technical field of vacuum cleaner equipment.

Background technique

Vacuum cleaners on the market, including upright vacuum cleaners, canister vacuum cleaners, hand-held vacuum cleaners, barrel vacuum cleaners, stick vacuum cleaners, backpack vacuum cleaners, carpet cleaners, bed vacuum cleaners, etc., will generate a lot of noise when users are using them , generally about 80 decibels, the noise of the vacuum cleaner is easy to upset, and it will affect the comfort of the user during use.

At present, most vacuum cleaners are sound-proofed by installing a double-motor cover sound insulation structure of the motor inner cover and the motor outer cover outside the motor, and filling the air duct between the inner and outer cover of the motor to reduce noise energy, so as to achieve better reduction. noise effect. However, the noise reduction effect of this kind of vacuum cleaner is average, and due to the hard contact between the motor and the motor cover, it still emits a relatively loud noise when used.

Chinese patent CN203302987U discloses a vacuum cleaner with noise reduction function, which includes a motor adjustment ring, a motor, a motor sealing ring, an air outlet plate, a rear cover, a noise reduction plate, a noise reduction cotton, a noise reduction partition, a base and a large The motor is installed in the base, the sound-absorbing plate, the sound-absorbing cotton and the sound-absorbing partition are combined and fixed on the back cover, the air outlet plate is fixed on the back cover, the back cover is installed on the base, the air outlet plate and the base There are at least two layers of sound-absorbing panels installed between the side walls. There are gradually smaller sound-absorbing holes distributed on the sound-absorbing panels and the sound-absorbing partitions. The diameter of the sound-absorbing holes gradually decreases. There is a sound-absorbing sponge between the sound-absorbing layers.

In the above-mentioned vacuum cleaner with noise reduction function, the hard contact between the motor and the base and the back cover is frequent, which makes a lot of noise. Only a small part of the noise can be removed by relying on the sound-absorbing board, the sound-absorbing cotton, the sound-absorbing partition, and the sound-absorbing hole, and all More material parts are required. Since the motor is the main source of noise generated by the vacuum cleaner, those skilled in the art propose to suspend the tail of the motor or use a shock absorber to reduce the noise generated when the motor swings, thereby achieving the effect of noise reduction.

In addition, in the existing vacuum cleaners, noise-absorbing cotton is usually provided on the side wall of the motor body, which will block the air outlet from the motor body and affect the performance of the vacuum cleaner.

There are also vacuum cleaners on the market. A vibration isolation support is set between the motor body and the motor body casing to isolate the noise and vibration generated when the motor body is working. This requires at least four vibration isolation supports to be evenly arranged between the motor body and the motor casing The support, which will also block the air outlet of the motor body to a certain extent, thus affecting the performance of the vacuum cleaner.

In view of the above problems, it is necessary to design a motor that is "suspended" in the motor cover, so that the motor does not have "hard contact" with the motor cover, and can prevent the sealing ring from being sucked into the motor air inlet to affect the air volume of the motor.

Utility model content

In view of this, the purpose of this utility model is to provide a "suspension" design for the main body of the vacuum cleaner motor, which can effectively reduce the noise of the vacuum cleaner when it is working, so that this type of vacuum cleaner noise reduction device is more applicable and industrial application value.

According to the purpose of the utility model, a suspension type noise reduction motor is proposed, which includes a motor body and a motor cover at least partially containing the motor body, at least one elastic mechanism is arranged between the motor body and the motor cover, and the elastic mechanism is The motor body provides supporting force or pulling force to counteract the gravity of the motor body. The elastic mechanism is sleeved on the limiting mechanism, and the limiting mechanism has a limiting effect on the motor body in the direction in which the elastic mechanism deforms.

Preferably, the limit mechanism includes a guide post and a limit slot, the elastic mechanism is sleeved on the guide post, the guide post passes through the through hole at the top of the limit slot, and the head of the guide post is set on the Inside the limit slot, the tail of the guide post is fixed on the motor, the cross-sectional area of the head of the guide post is larger than the through hole, and the limit slot allows the head of the guide post to reciprocate up and down in the limit slot.

Preferably, the limiting groove is installed on the motor cover, and the guide post is fixed on the motor through screws and studs.

Preferably, buffer pads are provided on the inner side of the top of the limiting groove and the inner side of the bottom of the limiting groove. More preferably, the buffer pad has an area larger than the head of the guide post.

Preferably, the limit mechanism is sleeved on the support frame, and the support frame is fixed on the motor cover.

More preferably, a limit cavity is formed between the support frame and the motor cover, the limit mechanism includes a guide post, the head of the guide post is arranged in the limit cavity, and the tail of the guide post is fixed on the motor. The limiting cavity allows the head of the guide post to reciprocate up and down in the limiting cavity.

More preferably, a buffer pad is provided at the contact portion between the guide post and the support frame.

Preferably, the number of the elastic mechanism is one, and the elastic mechanism provides pulling or supporting force to the motor body to counteract the gravity of the motor body.

Preferably, there are at least two elastic mechanisms, and the elastic mechanisms jointly provide pulling force or supporting force to the motor body to counteract the gravity of the motor body.

Preferably, several limit plugs are provided between the motor cover and the motor body.

Preferably, a sheath is provided between the bottom of the motor body and the motor cover.

Preferably, a motor bracket is arranged between the motor body and the motor cover, and the elastic mechanism and the limit mechanism are installed between the motor bracket and the motor cover.

Preferably, the elastic mechanism is a spring or a shrapnel.

Preferably, a sealing ring is sleeved on the air inlet of the motor body.

Compared with the prior art, the utility model has the following improvements:

The "suspension" design of the motor body is adopted, the motor body can float freely in the motor cover, the motor body and the motor cover have no hard contact, a sealing ring is set at the air inlet of the motor body, and the bottom of the motor body is suspended, so that the motor body is in the axial direction "floating"; an elastic mechanism is arranged between the motor body and the motor cover, and the elastic mechanism makes the motor body "float" in the radial direction. A number of limit plugs are set between the motor body and the motor cover. The limit plugs play a buffer role when the motor body vibrates. A sheath is provided between the bottom of the motor body and the motor cover. The upper plastic part vibrates, and the sealing ring, limit plug, and sheath are all made of soft soft materials, which can effectively reduce the noise when the vacuum cleaner is working. Clean, quiet working environment.

The elastic mechanism is sleeved on the limit mechanism, the limit mechanism includes a guide post and a limit groove, the elastic mechanism is sleeved on the guide post, the guide post passes through the through hole at the top of the limit groove, and the guide post The head of the guide post is arranged inside the limit groove, the cross-sectional area of the head of the guide post is larger than the through hole, and the limit groove allows the head of the guide post to reciprocate up and down in the limit groove, and the head of the guide post It will not leave the limit slot and has a limit effect on the motor body.

When the elastic mechanism is set under the motor body to provide support for the motor body, the elastic mechanism is in a pre-compressed state and has upward elasticity, and the head of the guide post is set in the limit groove, and the head of the guide post can only be in the limit position. Reciprocating movement in the groove, so due to the limiting effect of the limiting groove, the motor body has an upward limit, while leaving a stroke space for the motor body to move downward; when the elastic mechanism is set above the motor body to provide pulling force to the motor body When the elastic mechanism is in the pre-stretched state, it has upward elasticity. The head of the guide post is arranged in the limit groove, and the head of the guide post can only reciprocate in the limit groove. Therefore, due to the limit of the limit groove Function, so that the motor body has a downward limit, while leaving a stroke space for the motor body to move upward.

It can be seen that the sealing ring and the elastic mechanism can make the motor body "suspend" in the motor cover. The utility model has fewer parts around the motor body. Compared with the prior art, there is almost no obstruction to the air outlet of the motor body. This has outstanding substantive features and significant progress in noise reduction under the premise of ensuring the performance of the vacuum cleaner.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is an exploded schematic view of the suspension noise reduction motor disclosed in the first embodiment of the utility model.

Fig. 2 is a schematic structural view of the motor main body disclosed in the first embodiment of the utility model.

Fig. 3 is an enlarged view of part A in Fig. 2 .

Fig. 4 is an exploded schematic diagram of the suspension noise reduction motor disclosed in the second embodiment of the utility model.

Fig. 5 is a schematic structural view of the motor body disclosed in Embodiment 2 of the present invention.

Fig. 6 is an enlarged view of part B in Fig. 5 .

in:

1-motor 101-air inlet of motor body 2-motor cover

201-motor cover 3-motor bracket 301-motor upper bracket

302-Motor lower bracket 4-Elastic mechanism 5-Limiting mechanism

501-Limiting groove 5011-Limiting groove top 5012-Limiting groove bottom

502-Guide column 5021-Guide column head 503-Screw

504-stud 505-cushion pad 506-blocking block

6-sealing ring 7-sheath 8-limit plug

9-support frame 901-support frame rubber 902-screw

10-Limiting cavity

detailed description

As mentioned in the background technology, the motor body is in hard contact with the motor cover or other installation mechanisms, which will generate a lot of noise. Only a small part of the noise can be removed by using sound insulation structures, sound-absorbing panels or sound-absorbing cotton. In addition, the existing For the shock-absorbing and noise-reducing motor, complicated shock-absorbing parts are arranged around the motor body, which may block the air outlet of the motor body, thereby affecting the performance of the vacuum cleaner.

The utility model provides a suspension type noise reduction motor, which comprises a motor body and a motor cover at least partially containing the motor body, at least one elastic mechanism is arranged between the motor body and the motor cover, and the elastic mechanism provides the motor body with The supporting force or pulling force is used to counteract the gravity of the motor body, and each elastic mechanism is sleeved on a limiting mechanism, and the limiting mechanism has a limiting effect on the motor body in the direction in which the elastic mechanism deforms.

Preferably, the limit mechanism includes a guide post and a limit slot, the elastic mechanism is sleeved on the guide post, the guide post passes through the through hole at the top of the limit slot, and the head of the guide post is set on the Inside the limit slot, the tail of the guide post is fixed on the motor, the cross-sectional area of the head of the guide post is larger than the through hole, and the limit slot allows the head of the guide post to reciprocate up and down in the limit slot.

Preferably, the limiting groove is installed on the motor cover, and the guide post is fixed on the motor through screws and studs.

Preferably, buffer pads are provided on the inner side of the top of the limiting groove and the inner side of the bottom of the limiting groove.

Preferably, the limit mechanism is sleeved on the support frame, and the support frame is fixed on the motor cover.

More preferably, a limit cavity is formed between the support frame and the motor cover, the limit mechanism includes a guide post, the head of the guide post is arranged in the limit cavity, and the tail of the guide post is fixed on the motor. The limiting cavity allows the head of the guide post to reciprocate up and down in the limiting cavity.

More preferably, a buffer pad is provided at the contact portion between the guide post and the support frame.

Preferably, the number of the elastic mechanism is one, and the elastic mechanism provides pulling or supporting force to the motor body to counteract the gravity of the motor body.

Preferably, there are at least two elastic mechanisms, and the elastic mechanisms jointly provide pulling force or supporting force to the motor body to counteract the gravity of the motor body.

Preferably, several limit plugs are provided between the motor cover and the motor body.

Preferably, a sheath is provided between the bottom of the motor body and the motor cover.

Preferably, a motor bracket is arranged between the motor body and the motor cover, and the elastic mechanism and the limit mechanism are installed between the motor bracket and the motor cover.

Preferably, the elastic mechanism is a spring or a shrapnel.

Preferably, a sealing ring is sleeved on the air inlet of the motor body.

The technical solutions of the present utility model will be clearly and completely described through specific embodiments below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment one

Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 are respectively an exploded schematic diagram and a schematic diagram of an assembly structure of the suspension noise reduction motor provided in this embodiment. The utility model provides a suspension type noise reduction motor, comprising a motor body 1 and a motor cover 2 at least partially containing the motor body 1, a sealing ring 6 is set on the air inlet 101 of the motor body, and the bottom of the motor body 1 is suspended. Make the motor main body 1 "float" in the axial direction.

At least one elastic mechanism 4 is provided between the motor body 1 and the motor cover 2. The elastic mechanism 4 provides support or pulling force to the motor body 1 to offset the gravity of the motor body 1. The elastic mechanism 4 makes the motor body 1 "suspend" in the radial direction stand up.

In order to prevent the motor body 1 from colliding with the motor cover 2 to generate vibration noise, each elastic mechanism 4 is sleeved on a limit mechanism 5, and the limit mechanism 5 makes the motor body 1 have a limit function in the direction in which the elastic mechanism 4 deforms .

Please refer to Figure 3, Figure 3 is an enlarged view of A in Figure 2, Figure 3 clearly shows the structure of the limit mechanism, the limit mechanism 5 includes a guide post 502 and a limit groove 501, the limit groove 501 is installed on the motor On the cover 2, the elastic mechanism 4 is sleeved on the guide post 502, the guide post 502 passes through the through hole at the top 5011 of the limiting groove, and the tail of the guide post is fixed on the motor main body 1 by screws 503 and studs 504 Specifically, the connection method between the tail of the guide post and the motor main body 1 may be that the stud 504 is fixed on the motor main body 1, and the guide post 502 is fixed on the stud 504 by screwing or other connection methods. The guide post head 5021 is arranged inside the limiting groove 501. When the motor works, the motor body 1 vibrates, and the guide post 502 also moves along with it. However, the cross-sectional area of the guide post head 5021 is larger than the through hole, so The limiting groove 501 allows the guide post head 5021 to reciprocate up and down in the limiting groove 501 , and can only reciprocate between the top 5011 of the limiting groove and the bottom 5012 of the limiting groove.

Both the inside of the top of the limiting groove 5011 and the inner side of the bottom of the limiting groove 5012 are provided with buffer pads 505, so that during the reciprocating movement of the head 5021 of the guide post, it can achieve "soft contact" with the limiting groove 501 to avoid collision with the limiting groove 501 Vibration makes noise.

When there is only one elastic mechanism 4 , the elastic mechanism 4 is arranged on the side wall of the motor body 1 , and a position-limiting mechanism 5 is correspondingly arranged. When the motor works, when the elastic mechanism 4 is arranged under the motor main body 1 to provide support for the motor main body 1, the elastic mechanism 4 is in a pre-compressed state and has upward elasticity, and the head 5021 of the guide post is arranged in the limiting groove 501, and the guide post The head 5021 of the column can only reciprocate between the top 5011 of the limiting groove and the bottom 5012 of the limiting groove, so that the motor main body 1 can only move within the height range of the limiting groove 501 without contact with the motor cover 2 Or other plastic parts collide, so due to the limiting effect of the limiting groove 501, the motor body 1 has an upward limit, while leaving a travel space for the motor body 1 to move downward; when the elastic mechanism 4 is arranged on the motor body 1 When pulling force is provided to the motor body 1 from above, the elastic mechanism 4 is in a pre-stretched state and has upward elasticity. Therefore, due to the limiting effect of the limiting groove 501, the motor body 1 has a downward limit, while leaving a stroke space for the motor body 1 to move upward.

When the number of the elastic mechanism is one, and the elastic mechanism is arranged on the bottom or the head of the motor body, a position-limiting mechanism is correspondingly arranged. When the motor is working, when the elastic mechanism is arranged under the motor body to provide support for the motor body, the elastic mechanism is in a pre-compressed state and has upward elasticity. The head of the guide post is set in the limit groove, and the head of the guide post It can only reciprocate between the top of the limit slot and the bottom of the limit slot, so that the motor body can only move within the height range of the limit slot without colliding with the motor cover or other plastic parts, so due to the limit The limit function of the groove makes the motor body have an upward limit, and at the same time leaves a travel space for the motor body to move downward; when the elastic mechanism is set above the motor body to provide tension to the motor body, the elastic mechanism is in a pre-stretched state With upward elasticity, the head of the guide post is set in the limit slot, and the head of the guide post can only reciprocate in the limit slot. Therefore, due to the limit function of the limit slot, the motor body has a downward movement. The position is limited, and at the same time, there is a stroke space for the motor body to move upward.

When there are at least two elastic mechanisms 4 , the elastic mechanisms 4 jointly provide pulling or supporting force to the motor body 1 to counteract the gravity of the motor body 1 .

Some limit plugs 8 can also be arranged between the motor cover 2 and the motor main body 1, and the limit plugs 8 play a buffering role when the motor main body 1 vibrates. Wind blocks. In addition, a sheath 7 is provided between the bottom of the motor body 1 and the motor cover 2 to prevent the motor body 1 from twisting and colliding with the motor cover 2 to generate noise when the motor is started. An air blocking block 506 is also provided at the bottom of the limiting groove 5012 to prevent the outside air from entering the limiting groove 501 and affecting the movement of the guide post 502 . These measures all contribute to the shock absorption and noise reduction of the motor main body 1 .

In specific production, in order to facilitate production and assembly, a motor support 3 can be arranged on the body of the motor body 1. The motor support 3 is composed of a motor upper support 301 and a motor lower support 302. The elastic mechanism 4 and the limit mechanism 5 are installed on the motor support 2 and Between the motor cover 3. One embodiment of the motor bracket 3 is: the motor bracket 3 includes a motor upper bracket 301 and a motor lower bracket 302 , and the motor upper bracket 301 and the motor lower bracket 302 are clamped to accommodate the motor body 1 . The clamping of the upper bracket 301 of the motor and the lower bracket 302 of the motor can be in the following embodiments: a buckle is set on the edge of the upper bracket 301 of the motor, a clamping hole is set on the edge of the lower bracket 302 of the motor; a clamping hole is set on the edge of the upper bracket 301 of the motor, Buckles are provided on the edge of the motor lower bracket 302; through screw openings, the clamping implementation modes between the motor upper bracket 301 and the motor lower bracket 302 of the present invention are not limited to the above-mentioned ones. A motor cover 201 is arranged above the motor cover 2, and is fastened by screwing or other connection methods.

The above-mentioned elastic mechanism is a spring, one end of the spring is connected to the motor body 1 or the motor bracket 3, and the other end is placed on the head 5021 of the guide post. Of course, the elastic mechanism 4 can also use other materials with elastic deformation characteristics such as shrapnel. In the same way as the spring.

Embodiment two

Please refer to Figure 4 to Figure 6, this embodiment discloses another implementation of the suspension noise reduction motor, the difference between this embodiment and Embodiment 1 is as follows:

The limit mechanism 5 is sleeved on the support frame 9, and the support frame 9 is fixed on the motor cover 2, and the support frame 9 can be fixed on the motor cover 2 by screwing. One end of the elastic mechanism 4 is fixed on the motor, and the other end is fixed on the support frame 9 through the support frame rubber 901. A limiting cavity 10 is formed between the support frame 9 and the motor cover 2, and the support frame is fixed to the motor cover by screws 902. superior. The limit mechanism includes a guide post 502, the head of the guide post 5021 is arranged in the limit cavity 10, the tail of the guide post is fixed on the motor, and the limit cavity 10 allows the head of the guide post 5021 to move up and down in the limit cavity 10 reciprocating motion. A buffer pad is provided at the contact portion between the guide post 502 and the support frame 9 .

The beneficial effect of this embodiment is: when the product needs to be repaired, unscrew the screws used to fix the support frame, and the limit mechanism or the elastic mechanism in the motor cover can be replaced.

The "up and down reciprocating motion" mentioned above refers to the reciprocating motion in the normal direction of the main shaft of the motor body.

Application example

The input power of the main body of the motor is 800W. Using the first and second embodiments of the present invention to make a vacuum cleaner, the numbers are 1 and 2 respectively. Turn on the power of the vacuum cleaner to make the vacuum cleaner work normally, and carry out the noise test, and use the 800W motor main body in the prior art As a comparison example, the number of the comparison example is 0, and the test results are shown in Table 1:

Table 1 Vacuum cleaner working noise test

Numbering Noise valuedB(A) Is there any abnormal sound such as howling? 0 80.0 Have 1 65.0 none 2 65.0 none

Table 1 shows that the working noise of the vacuum cleaner made by using the first and second embodiments of the utility model is 65 decibels and 65 decibels. When the user uses the vacuum cleaner to clean the ground, there is only soft wind sound, bringing the user a clean and clean environment. The utility model creatively designs the main body of the motor to be "suspended", and will have broad application prospects.

After testing, when the input power of the main body of the motor is 1700W, the noise of the vacuum cleaner made by the utility model is about 67 decibels, which is only increased by 2 decibels. The noise reduction effect of the utility model is very obvious.

To sum up, the utility model discloses a suspension type noise reduction motor. In the utility model, a sealing ring is set at the air inlet of the motor body, the bottom of the motor body is suspended, and an elastic mechanism is set between the side wall of the motor body and the motor cover, so that the motor body is "suspended" in the motor cover, sealing The ring, elastic mechanism, limit plug, and sheath make the motor body have a shock absorbing mechanism when it moves in any direction in three-dimensional space, and at the same time, the limit mechanism ensures that the motor body can only float within a certain range. When the motor body runs at high speed , can effectively reduce vibration. The utility model has few components around the motor body, and compared with the prior art, there is almost no obstruction to the air outlet of the motor body, which has outstanding substantive features and significant progress in noise reduction under the premise of ensuring the performance of the vacuum cleaner.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. a floated noise reduction motor, comprise motor body and at least part of motor cover containing motor body, it is characterized in that, at least one elastic mechanism is provided with between the main whole body of described motor and motor cover, described elastic mechanism provides support power or pulling force to offset the gravity of motor body to motor body, described elastic mechanism is sheathed on position-limit mechanism, and described position-limit mechanism has position-limiting action to motor body on the direction of elastic mechanism generation deformation.

2. floated noise reduction motor as claimed in claim 1, it is characterized in that, described position-limit mechanism comprises guide pillar and stopper slot, described elastic mechanism is sheathed on guide pillar, described guide pillar is through the through hole at stopper slot top, and the head of described guide pillar is arranged at stopper slot inside, and the afterbody of guide pillar is fixed on motor, the cross-sectional area of the head of described guide pillar is greater than through hole, and described stopper slot allows the head of guide pillar to pump in stopper slot.

3. floated noise reduction motor as claimed in claim 2, it is characterized in that, described stopper slot is installed in motor cover, and described guide pillar is fixed on motor by screw and stud.

4. floated noise reduction motor as claimed in claim 2, is characterized in that, described stopper slot inside top and stopper slot bottom inside are equipped with cushion pad.

5. floated noise reduction motor as claimed in claim 1, it is characterized in that, position-limit mechanism is sheathed on bracing frame, and support frame as described above is fixed in motor cover.

6. floated noise reduction motor as claimed in claim 5, it is characterized in that, limit chamber is formed between support frame as described above and motor cover, described position-limit mechanism comprises guide pillar, the head of guide pillar is arranged in limit chamber, the afterbody of guide pillar is fixed on motor, and described limit chamber allows the head of guide pillar to pump in limit chamber.

7. floated noise reduction motor as claimed in claim 6, is characterized in that, described guide pillar and bracing frame contact site are provided with cushion pad.

8. floated noise reduction motor as claimed in claim 1, is characterized in that, the quantity of described elastic mechanism is one, and described elastic mechanism provides pulling force or support force to offset the gravity of motor body to motor body.

9. floated noise reduction motor as claimed in claim 1, is characterized in that, the quantity of described elastic mechanism is at least two, and described elastic mechanism provides pulling force or support force to offset the gravity of motor body to motor body jointly.

10. floated noise reduction motor as claimed in claim 1, is characterized in that, be provided with some limit plunger between described motor cover and motor body, be provided with sheath bottom described motor body and between motor cover.

11. floated noise reduction motors as claimed in claim 1, it is characterized in that, be provided with electric machine support between motor body and motor cover, described elastic mechanism and position-limit mechanism are installed between electric machine support and motor cover.

12. floated noise reduction motors as claimed in claim 1, is characterized in that, described motor body air inlet is arranged with sealing ring.