KR19990009503U - Slip-proof structure of the motor for vacuum cleaner - Google Patents

Abstract

The present invention relates to a slip prevention structure of a motor for a cleaner, wherein a protrusion having an accommodating groove protrudes on an inner wall of a storage chamber of the cleaner case, and an impeller housing equipped with an impeller is mounted on the accommodating housing. The impeller housing can be easily mounted in the accommodating groove by inserting a slip preventing member having a plurality of slip preventing protrusions protruding from the inside and the outside so as to prevent slip of the impeller housing during instantaneous starting of the motor. The motor is prevented from slipping at the moment of starting, and the vibration transmitted to the cleaner case can be alleviated, thereby minimizing noise.

Description

Slip-proof structure of the motor for vacuum cleaner

The present invention relates to a slip prevention structure of a cleaner motor, and more particularly, to a slip prevention structure of a cleaner motor that can prevent slip and vibration noise of a motor installed in a cleaner case when a motor is momentarily started. It is about.

In general, a vacuum cleaner is a tool for removing foreign matters such as dust in a room by using a high-absorption input. Such a cleaner is a collection chamber 10a for collecting and temporarily storing dust as shown in FIG. 1. ) And a suction hose 14 connected to the other end of the storage chamber 10b and the collection chamber 10a, which is coupled to one side thereof and receives the motor 12 for generating a high suction input.

On the inner wall of the storage chamber 10b in which the cleaner motor 12 is installed, the protrusion 18 having the receiving groove 18a protrudes inwardly so as to mount the impeller housing 16 as shown in FIG. One side of the protrusion 18 is provided with a support holder 22 formed with an exhaust hole 22a to support the housing 20 for protecting the rotor (not shown) of the motor 12 from the rear side. The impeller housing 16 and the outer circumferential surface of the housing 20 are interposed with a rubber buffer ring 24 so as to minimize the vibration and the noise generated by the motor 12 during operation of the vacuum cleaner. .

The conventional vacuum cleaner configured as described above fits the impeller housing 16 of the motor 12 into the receiving groove 18a of the protrusion 18 protruding from the inner wall of the storage chamber 10b, and supports one end of the housing 20. In close contact with the inner surface of the holder 22, the installation of the motor 12 is completed via the buffer ring 24 on the impeller housing 16 and the outer peripheral surface of the housing 20, respectively.

Subsequently, when the vacuum cleaner is operated, an impeller (not shown) coupled to one end of the rotor shaft by the driving of the motor 12 rotates at a high speed, so that foreign substances such as dust are sucked into the suction hose 14. It is temporarily stored in the collection chamber (10a) through. At this time, a filtration member 26 such as a sponge is attached to the outer wall of the storage chamber 10b to block foreign matter from entering the interior of the storage chamber 10b, and the suction air passing through the filtration member 26 is connected to the housing 20. It is discharged to the outside through the exhaust hole (22a) of the support holder 22 for supporting.

However, since the impeller housing of the motor is inserted into the accommodating groove formed in the protrusion, the inner diameter of the accommodating groove cannot be precisely formed by the contraction deformation of the protrusion, so that the installation work of the impeller housing is difficult. In addition, the impeller housing slips on the inner circumferential surface of the receiving groove during instantaneous starting, and the vibration generated from the motor is transmitted to the entire vacuum cleaner case, thereby reducing the reliability of the quality.

The present invention is to solve the above problems, the object of the present invention is to simply mount the impeller housing in the receiving groove of the projection, and prevent the slip of the mounted impeller housing during instantaneous starting of the motor, of course The present invention provides a slip prevention structure of a motor for a cleaner that can alleviate vibrations transmitted to a cleaner case, thereby minimizing noise.

1 is a perspective view schematically showing the appearance of a conventional vacuum cleaner;

2 is a partial cross-sectional view showing a state in which a motor is installed in the case of the vacuum cleaner of FIG.

3 is a perspective view showing a slip prevention structure of a motor for a cleaner according to the present invention;

Figure 4 is a cross-sectional view showing a state in which the slip prevention structure according to the present invention is applied to a motor for a cleaner.

Explanation of symbols on the main parts of the drawings

10: case 12: motor

14 suction hose 16 impeller housing

18: projection 18a: receiving groove

20: housing 22: support holder

40: rubber 40a, 40b: slip preventing projection

A feature of the present invention for achieving the above object, the protrusion having a receiving groove on the inner wall of the storage chamber of the cleaner case protrudes, is provided in the impeller housing mounted in the receiving groove slip of the impeller housing on the inner peripheral surface of the receiving groove In the anti-slip structure of the motor for a cleaner for preventing the slip, the impeller housing is detachably fitted with a slip preventing member having elasticity to prevent slip on the inner circumferential surface of the receiving groove when the motor is momentarily started. Is achieved.

Slip preventing member according to a preferred embodiment of the present invention is achieved by a rubber in close contact with the inner peripheral surface of the impeller housing and the receiving groove, respectively.

The outer and inner sides of the rubber according to a preferred embodiment of the present invention is achieved by protruding a plurality of anti-slip projections in order to increase the frictional resistance to the inner, outer peripheral surface of the impeller housing and the receiving groove.

Hereinafter, a preferred embodiment of the slip prevention structure of the cleaner motor according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are views showing a slip prevention structure according to the present invention, and for the convenience of the description in the configuration of the vacuum cleaner, the same reference numerals refer to the same parts as those of the conventional configuration described above.

The cleaner case 10 includes a collecting chamber 10a, a storage chamber 10b coupled to one end thereof, and a suction hose 14 connected to the other end of the collecting chamber 10a, and the storage chamber 10b. A protruding portion 18 having an accommodating groove 18a protrudes from the inner wall to accommodate the impeller housing 16 of the motor 12, and one side of the protruding portion 18 protects the rotor of the motor 12. A support holder 22 having an exhaust hole 22a is provided to support the housing 20 therefor.

An outer circumferential surface of the impeller housing 16 is fitted with a slip preventing member having a predetermined elasticity to prevent the impeller housing 16 from slipping on the inner circumferential surface of the receiving groove 18a of the protrusion 18 when the motor 12 is momentarily started. Lose. 3, the slip preventing member is made of a rubber 40 to closely adhere to the outer circumferential surface of the impeller housing 16 and the inner circumferential surface of the receiving groove 18a, as shown in FIG. The plurality of slip preventing protrusions 40a and 40b protrude at equal intervals so as to increase the frictional resistance value of the impeller housing 16.

Referring to the operation of the anti-slip structure of the cleaner motor according to the present invention configured as described above are as follows.

While mounting the impeller housing 16 in which the rubber 40 is fitted to the outer circumferential surface of the receiving groove 18a of the protrusion 18, the back of the housing 20 which protects the rotor is in close contact with the support holder 22. The motor 12 is installed in the interior 10b, and the collection chamber 10a connected to the suction hose 14 to one side of the storage chamber 10b is completed to complete the coupling of the cleaner case 10.

At this time, the rubber 40 is firmly adhered to the inner circumferential surface of the impeller housing 16 and the receiving groove 18a, thereby compensating for the incorrect machining dimension of the inner diameter of the receiving groove 18a due to the shrinkage deformation during the forming of the protrusion 18. You can do it.

Then, when the vacuum cleaner is operated, the impeller coupled to one end of the rotor shaft by the driving of the motor 12 rotates at a high speed and strongly sucks outside air into the collection chamber through the suction hose 14. Temporarily stored and sucked air is discharged to the exhaust hole (22a) of the support holder 22 for supporting the housing 20.

Here, the slip of the impeller housing 16 generated when the motor 12 is momentarily started is increased by the friction preventing protrusions 40a and 40b protruding into and out of the rubber to prevent slippage. The vibration generated when the motor is driven is transmitted to the rubber and cushioned to minimize noise when using the vacuum cleaner.

As described above, according to the slip prevention structure of the cleaner motor according to the present invention, the impeller housing can be easily mounted in the receiving groove of the protrusion, and the mounted impeller housing can be prevented from slipping during instantaneous starting of the motor. The vibration transmitted to the cleaner case may be reduced as well as noise may be reduced accordingly.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (3)

In the anti-slip structure of the motor for a cleaner for preventing the slip of the impeller housing on the inner peripheral surface of the housing is projected projections having a receiving groove on the inner wall of the vacuum cleaner case protruding, and fitted into the outer peripheral surface of the impeller housing mounted in the receiving groove , The slipper prevention structure of the vacuum cleaner motor, characterized in that the impeller housing is detachably fitted with a resilient slip preventing member to prevent slipping on the inner peripheral surface of the receiving groove during instantaneous starting of the motor. According to claim 1, wherein the slip preventing member is a slip prevention structure of a motor for a cleaner, characterized in that the rubber is in close contact with the inner peripheral surface of the impeller housing and the receiving groove, respectively. 3. The slip prevention of the cleaner motor according to claim 2, wherein a plurality of anti-slip protrusions protrude from the outer side and the inner side of the rubber so as to increase frictional resistance with respect to the inner and outer peripheral surfaces of the impeller housing and the receiving groove. rescue.