KR20070065137A - Motor case structure for vacuum cleaner - Google Patents

Abstract

A motor case structure for a vacuum cleaner is provided to more efficiently reduce noise of the vacuum cleaner by installing a plurality of noise absorbers and shock absorbers. A motor case structure for a vacuum cleaner includes a cleaner main body, a front case(32), a rear case(34), and an inner case(36). An air flow passage is formed inside the cleaner main body. A dust container mounting part and motor mounting part are formed on the partitioned cleaner main body with a separator. The front case has an inlet formed on a plane corresponding a hole part formed on the separator and embeds a motor and a pan which are installed on the motor mounting part. The rear case is coupled to the front case and has a sealed space and an outlet. The inner case is installed between the rear case and the front case, has a sealed space in which the motor and pan is contained by being coupled to the front case, and forms a passage by having a regular gap from the rear case.

Description

Motor Case Structure for Vacuum Cleaner {MOTOR CASE STRUCTURE FOR VACUUM CLEANER}

1 is a perspective view of a typical vacuum cleaner,

2 is an exploded perspective view illustrating a dust container of a vacuum cleaner according to the prior art;

3 is a perspective view showing a vacuum cleaner according to the present invention;

4 is a perspective view showing a cleaner body according to the present invention;

5 is a perspective view showing a motor case for a vacuum cleaner according to the present invention;

6 is a rear perspective view showing the motor case mounting structure according to the present invention;

7 is a sectional perspective view showing a motor case structure according to the present invention;

8 is a perspective view showing an inner case of the motor case according to the present invention;

9 is a front view showing a motor case according to the present invention;

10 is a cross-sectional view taken along the line A-A shown in FIG.

FIG. 11 is a cross-sectional view taken along the line B-B shown in FIG. 9.

<Explanation of symbols on main parts of the drawings>

10: cleaner body 12: inlet

14: partition 14a: hole

16 dust box mounting portion 18 motor mounting portion

20: dust box 30: motor case

32: front case 34: rear case

36: inner case 37: through hole

38: guide 39: sound insulation wall

42: first sound absorbing material 44: second sound absorbing material

46: third sound absorbing material 50: buffer member

The present invention relates to a motor case structure for a vacuum cleaner, and in particular, an inner case surrounding the motor is installed to lengthen the flow path of the discharged air, and a sound absorbing material and a cushioning member are installed, so that noise generated when the vacuum cleaner is driven is reduced. It relates to a motor case structure for a vacuum cleaner to be reduced.

In general, vacuum cleaners are divided into canister type vacuum cleaners that drag and clean the main body, and upright type vacuum cleaners in which the main body is placed in a vertical direction. .

An example of a canister vacuum cleaner is shown in FIGS. 1 and 2, which will be briefly described as follows.

As shown, a conventional canister vacuum cleaner is provided with a cleaner body 1, and a suction head 2 for sucking dust in front of the cleaner body 1, and the suction head 2 and A hose 3 and an extension tube 4 are connected between the cleaner body 1 so as to communicate between the suction head 2 and the cleaner body 1.

In addition, the dust container mounting portion 5 formed in the rear surface of the cleaner body 1 is detachably attached to the dust container 6 for collecting dust sucked into the cleaner body 1 through the hose 3. Is installed, the inside of the cleaner body 1 is provided with a fan motor (not shown) for generating a suction force so that dust can be collected in the dust container (6).

A filter is installed inside the dust container so that foreign matters from the air flowing from the suction head 2 are filtered by the filter, and the air is discharged into the room through the discharge port of the cleaner body 1, and the foreign matter remains inside the dust container to perform cleaning. .

However, the vacuum cleaner motor according to the prior art is housed by a conventional case, and since the case in which the motor and the fan are housed is installed inside the cleaner body 1, the flow path of air passing through the motor and the fan is not more than a predetermined distance. Therefore, there is a problem that noise generated from the motor and the fan is easily transmitted to the outside of the motor case.

The present invention has been made in order to solve the above problems of the prior art, by installing an inner case to bypass the air discharged by the motor and the fan inside the motor case, so that the length of the air passage is increased to reduce noise In addition, the sound absorbing material is installed in the hole through which the air penetrates, and the shock absorbing member is installed in the air collision part, to provide a motor case structure for a vacuum cleaner that can reduce the noise and vibration generated in the motor case. have.

The vacuum cleaner motor case structure according to the present invention for solving the above problems has a predetermined space, the air flow path is formed therein, partitioned by a partition wall and the vacuum cleaner body formed with a dust container mounting portion and the motor mounting portion, and formed in the partition wall An inlet is formed on a surface corresponding to the hole, and a motor and a fan are built in, and a front case installed in the motor mounting unit, a rear case coupled to the front case to form a closed space and an outlet is formed, and between the rear case and the front case. It is installed, and combined with the front case to form a sealed space for accommodating the motor and the fan, the inner case to maintain a certain distance with the rear case to form a flow path, a through hole formed on one side of the inner case, and the through hole Air formed in one side of the part and discharged through the through-hole part toward the front case side It is characterized by including a guide to be bypassed.

Hereinafter, with reference to the accompanying drawings an embodiment of a vacuum cleaner motor case structure according to the present invention will be described in detail.

3 is a perspective view showing a vacuum cleaner according to the present invention, Figure 4 is a perspective view showing a cleaner body according to the present invention, Figure 5 is a perspective view showing a motor case for a vacuum cleaner according to the present invention.

The vacuum cleaner motor case structure according to the present invention has a predetermined space therein is formed in the air flow path, partitioned by the partition wall 15, the vacuum cleaner body 10, the dust container mounting portion 16 and the motor mounting portion 18 is formed, An inlet 32a is formed in a surface corresponding to the hole 15a formed in the partition 15, and the front case 32 is installed in the motor mounting unit 18 with the motor 60 and the fan built therein, and the front case. The rear case 34 is coupled to the 32 to form a sealed space and the outlet 34a is formed, and is installed between the rear case 34 and the front case 32, and is coupled to the front case 32 to form a motor ( 60) and an inner case 36 forming a sealed space in which the fan is accommodated, the inner case 36 maintaining a predetermined distance from the rear case 34, and a through hole part 37 formed at one side of the inner case 36. And, formed on one side of the through-hole portion 37 to the through-hole portion 37 That the air exhaust is configured to include the guide 38 so that the bypass toward the front case 32.

As a result, the air introduced by the motor and the fan flows into the space where the motor and the fan are installed through the inlet 32a of the front case 32, and the air discharged through the through hole portion 37 follows the guide 38. After colliding with the inner wall of the front case 32, the direction of travel is reversed, and air is discharged through the outlet 34a formed in the rear case 34. Thus, the air passage is extended so that the sound absorbing effect is generated. .

Here, the front case 32 is installed on the inner wall of the front case 32 by the guide 38 because the shock absorbing member 50 is installed on the inner wall corresponding to the inner case 36 as shown in FIG. The impacted air is absorbed by the shock absorbing member 50, it is possible to reduce the vibration and noise.

In addition, the rear case 34 may absorb noise from the air discharged from the motor case 30 because the third sound absorbing material 46 of the porous material is installed inside the outlet 34a as shown in FIG. 10. Make sure

Figure 6 is a rear perspective view showing a motor case mounting structure according to the present invention, Figure 7 is a sectional perspective view showing a motor case structure according to the present invention, Figure 8 is an inner case of the motor case according to the present invention is shown Perspective view.

The inner case 36 has the through hole portion 37 formed on the bottom thereof, and a pair of engaging pieces 37a are formed inside the through hole portion 37 so that the first sound absorbing material 42 is disposed on the engaging piece 37a. Is installed, the guide 38 extending in the downward direction from the outside of the through hole portion 37 is formed, the guide 38 has a flat cross-sectional shape is formed in a 'Ｕ' shape, the opening surface is the front case 32 The guide 38 has a plurality of auxiliary guides (38a) to maintain a predetermined interval therein.

As a result, the air discharged by the motor 60 and the fan is discharged downward along the through-hole portion 37 in the sealed space consisting of the front case 32 and the inner case 36, and the guide 38 and the auxiliary guide. It moves to the front case 32 side by 38a, collides with the front case 32, and the shock absorbing member 50, and the advancing direction is reversed and discharged to the discharge port 34a side.

In addition, since the second sound absorbing material 44 is interposed between the guide 38 and the auxiliary guide 38a, the primary sound is reduced by the first sound absorbing material 42 in the air passing through the through hole portion 37, Since the secondary noise is reduced by the second sound absorbing material 44, an effective sound absorbing action is achieved.

In addition, a sound insulating wall 39 protruding from the circumferential surface of the inner case 36 to be in close contact with the inner wall of the rear case 34 is installed to prevent noise generated from the motor 60 from being transferred to the outlet 34a. Bar, the sound insulating wall 39 is bent in the 'b' shape of the cross-sectional side surface is formed along the bottom surface of the motor case 30 so that the passage of the noise is prevented, so that the passage of the air is formed.

Looking at the operation of the vacuum cleaner motor case according to the present invention configured as described above are as follows.

First, when power is applied to the vacuum cleaner, the motor 60 and the fan are driven to introduce air through the suction head 12, the extension tube 13, and the hose 14, and the introduced air passes through the dust container 20. Passed through the motor case 30 is discharged into the room through the discharge port formed in the cleaner body (10).

At this time, foreign matter is collected in the dust container 20 to be cleaned, and the air passing through the dust container 20 passes through the hole part 15a of the partition wall 15 through the inlet 32a of the front case 32. The suctioned air is sucked into the case 30, and the sucked air flows along the flow path formed between the inner case 36 and the rear case 34 through the through hole part 37 through the motor 60 and the fan.

At this time, the flow of air is moved to the lower side of the inner case 36 along the guide 38, the air moved to the lower side is converted to the direction while colliding with the inner wall of the front case 32, the outlet of the rear case 34 It flows to the 34a side.

Here, the air moved downward by the auxiliary guide 38a can be prevented from forming the vortex while the direction is changed to the front, when the air flowed forward hit the inner wall of the front case 32 Vibration and noise are reduced by the buffer member 50.

In addition, when the air passes through the through hole portion 37, the noise is reduced by the first sound absorbing material 42 and the second sound absorbing material 44, so that a quiet cleaning operation can be performed.

In addition, since the third sound absorbing material 46 passes even when passing through the discharge hole 34a formed in the rear case 34, the final sound absorbing effect is generated in the air discharged into the room.

As a result, the motor case structure can be achieved to minimize the noise of the vacuum cleaner.

The motor case structure for a vacuum cleaner according to the present invention configured as described above is provided with an inner case for extending an air flow path, thereby reducing noise while flowing inside the air motor case, thereby providing a quiet cleaning operation. .

In addition, by providing a plurality of sound absorbing material and the shock absorbing member, it is possible to cancel the vibration generated from the air to change the direction of travel, and to reduce the noise in the flowing air can be reduced the noise of the vacuum cleaner more effectively There is this.

Claims (9)

A vacuum cleaner body having a predetermined space therein and having an air flow path formed therein and partitioned by a partition to form a dust container mounting unit and a motor mounting unit; A front case having an inlet formed on a surface corresponding to the hole formed in the partition, and having a motor and a fan installed therein and installed in the motor mounting unit; A rear case coupled to the front case to form a closed space and having an outlet; An inner case installed between the rear case and the front case, coupled to the front case to form a sealed space in which a motor and a fan are accommodated, and an inner case to maintain a predetermined distance from the rear case; A through hole formed on one side of the inner case; And a guide formed on one side of the through-hole part to guide air discharged through the through-hole part to the front case side. The method of claim 1; The front case is a vacuum cleaner motor case structure, characterized in that the buffer member is installed on the inner wall corresponding to the inner case. The method of claim 1; The rear case is a vacuum cleaner motor case structure, characterized in that the third sound absorbing material is installed inside the discharge port. The method of claim 1; The inner case is the through-hole portion is formed on the bottom surface, the first sound absorbing material is installed inside the through-hole portion, the vacuum cleaner motor case structure, characterized in that formed in the guide extending from the outside in the downward direction. The method of claim 4; The guide is a vacuum cleaner motor case structure, characterized in that the flat cross-sectional shape is formed in a 'Ｕ' shape so that the opening surface corresponds to the front case. The method of claim 5; The guide is a vacuum cleaner motor case structure, characterized in that a plurality of auxiliary guides are formed to maintain a predetermined interval therein. The method of claim 6; A vacuum cleaner motor case structure, wherein a second sound absorbing material is interposed between the guide and the auxiliary side. The method of claim 1; A sound insulation wall protruding from the circumferential surface of the inner case to be in close contact with the inner wall of the rear case is installed to prevent noise generated by the motor from being transmitted to the outlet side. The method of claim 8; The sound insulation wall is a motor case structure for a vacuum cleaner, characterized in that the side cross-sectional shape is bent in the 'b' shape to form a flow path of air along the bottom surface of the motor case.

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