JPH10192196A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner in which the exhaust discharged through a motor can be clean by covering a motor of an electric blower with a cylindrical filter. SOLUTION: A cylindrical filter is composed of an exhaust filter 25b overlapped with an upper surface of a silencer pipe 25a in such a range as to sufficiently cover an aperture part formed in part of a lower part of a motor cover and locked with staples 26 in double layers. In the case of forming a cylindrical form, part of the staples 26 can be commonly used for locking the silencer pipe 25a and locking the exhaust filter 25b. A motor is wholly covered with the cylindrical filter in such a way that a ventilation hole of the motor and a brush part are surrounded to put the filter 25b to face an aperture part formed in part of a lower part of a motor cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust-cleaning vacuum cleaner for cleaning exhaust containing dust from a motor cover of an electric blower, which is a component of the vacuum cleaner.

[0002]

2. Description of the Related Art In general, noise control and air purification are regarded as important in various fields. In particular, it is important to reduce the noise of household electric appliances that are used on a daily basis and to clean the exhaust air. There is also a strong demand, which is a factor that affects the value of products, and how to reduce noise and clean exhaust is a demand issue that must also be solved for manufacturers.

[0003] Vacuum cleaners, which are frequently used among household electric appliances and whose main place of use is indoors, generate considerable noise due to their high performance, and are particularly useful in homes with sick people and infants. It was to take care. It is equally important to clean the exhaust. Therefore, there is a demand for a vacuum cleaner having a quieter operation type and a cleaner exhaust air.

Exhaust air is mainly filtered from a rear exhaust port of the motor of the electric blower through a rear exhaust port and discharged through a filter, and a part of the exhaust gas is also supplied to a code reel case for cooling the code reel. Since the cord reel case has a cord outlet, air that is not filtered is exhausted from the outlet. Therefore, as a countermeasure to clean the exhaust, a filter is attached to a rear air outlet and a filter is also attached to a cooling air supply port to the cord reel case.

[0005] For this reason, filters have to be attached to two places, an exhaust port at the rear of the vacuum cleaner and a cooling air supply port to the cord reel case. In particular, the attachment of the filter to the cooling air supply port on the cord reel case is performed by manual work such as application of an adhesive and attachment of the filter, resulting in poor work efficiency.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention relates to an electric blower, which is a component of an electric vacuum cleaner. It is an object of the present invention to provide an exhaust-cleaning vacuum cleaner which cleans exhaust itself discharged through a motor by covering with a filter in a shape of a circle.

[0007]

According to a first aspect of the present invention, there is provided an electric vacuum cleaner in which a motor of an electric blower is covered with a motor cover provided with an exhaust opening. By covering the motor in the motor cover with a cylindrical filter formed by overlapping and engaging an exhaust filter on the surface, and disposing the exhaust filter of the cylindrical filter in communication with the opening of the motor cover. Achieved.

[0008] In this way, the exhaust gas containing dust that has passed through the motor of the electric blower is filtered through an exhaust filter through a silencer pipe made of a flame-retardant and air-permeable material to produce a clean exhaust gas. This eliminates the need to attach a filter to the cord outlet, eliminating the need for manual work such as applying adhesive and attaching the filter.
Work efficiency can be increased. In addition, since the silencer pipes of different materials are overlapped with the exhaust filter, it is effective in reducing noise.

According to a second aspect of the present invention, in the electric vacuum cleaner in which the motor of the electric blower is covered with a motor cover provided with an exhaust opening, the exhaust of the motor cover is provided on the outer surface of the silencer pipe. The motor in the motor cover is covered with a cylindrical filter formed by overlapping and engaging the exhaust filter in a portion where the exhaust filter can be covered, and the exhaust filter of the cylindrical filter is This is achieved by arranging in communication with the opening.

[0010] Thus, the exhaust gas containing dust that has passed through the motor of the electric blower while minimizing the amount of use of the exhaust filter is
Clean exhaust can be obtained by filtering fine dust with an exhaust filter through a silencer pipe made of a flame-retardant and air-permeable material.

According to a third aspect of the present invention, in the electric vacuum cleaner in which the motor of the electric blower is covered with a motor cover provided with an exhaust opening, an exhaust filter is provided on the entire outer surface of the silencer pipe. This is achieved by covering the motor in the motor cover with a cylindrical filter formed by overlapping and engaging, and arranging the exhaust filter of the cylindrical filter in communication with the opening of the motor cover.

As described above, when the cylindrical filter is attached to the motor, the exhaust filter is present at any position of the cylindrical filter. It is not necessary to perform positioning so as to face each other, and the mounting operation is simplified.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to FIGS. 1 to 3 by taking a silent type vacuum cleaner proposed by the present applicant as an example. FIG. 1 is an external view of a vacuum cleaner, wherein 1 is an upper case (case upper), 2 is a lower case (case lower), 3 is a case cover, and these 1 to 3 constitute a main body case. . 4 is a bumper, 5 is a dust cover, and 6 is a wheel. Upper case 1 and lower case 2 are 2
It has a layered structure to prevent noise from leaking to the outside. The bumper 4 also serves as a seal packing for increasing the degree of sealing of the dust collection chamber.

FIG. 2 is a front sectional view of the vacuum cleaner shown in FIG. 7 is a suction port, 8 is a dust collection chamber, 9 is a dust collection meter, 1
0 is a filter, 11 is a partition plate (partition), 12 is a rectifying plate,
13 is an anti-vibration cushion, 14 is a fan of an electric blower, 1
5 is a motor of the electric blower, 16 is a motor cover, 17 is an electric blower storage chamber, 18 is a code reel, 19 is a code reel case, 20 is an exhaust chamber, 21 is a filter, and 22 is an exhaust port. FIG. 3 is a plan cross-sectional view of the vacuum cleaner shown in FIG. 1, in which reference numeral 24 denotes a caster stand, and other numbers are the same as those in FIG.

The basic operation of the electric vacuum cleaner constructed as described above is as follows. First, the suction operation of the fan 14 of the electric blower stored in the electric blower storage chamber 17 causes the air to be sucked from the suction port 7 through the hose through the hose. Only the collected dust is collected in a dust bag made of a paper pack in a dust collection chamber 8, and the remaining exhaust is filtered by a filter 10, and then passes through a gap of a partition plate 11 to be exhausted by a rectifying plate 12. The flow is rectified and sucked by the fan 14 of the electric blower.

The sucked exhaust gas is supplied to the motor 15 of the electric blower.
After passing through the cord reel case 19 from an opening formed in a part of the lower portion of the motor cover 16 through the inside of the motor cover 16, it reaches the exhaust chamber 20, is filtered by the filter 21, and is exhausted from the exhaust port 22.

By rectifying the flow of the exhaust gas with the rectifier plate 12, it is possible to avoid random collision with the fan 14 of the electric blower, thereby reducing the generation of noise.
In addition, by exhausting the exhaust gas collectively from an opening formed in a part of the lower portion of the motor cover 16, the exhaust gas is diffused from the rear end of the motor cover in a conventional vacuum cleaner. Thus, the generation of noise can be reduced.

Further, the exhaust is passed through a cord reel case 19 through an opening formed in a part of the lower portion of the motor cover 16, thereby cooling the cord reel heated by energization and exhausting through a narrow place. Is discharged along the rear cover of the exhaust chamber after being discharged into the wide cord reel case, so that the sound is reduced by the same effect as the chamber effect in the silencer.

Next, a cylindrical filter that covers the periphery of the motor of the electric blower and its attachment, which is a feature of the present invention, is an embodiment applied to a silent type vacuum cleaner proposed by the present applicant in FIG. This will be described with reference to FIGS.

FIG. 4 is a front sectional view of the vacuum cleaner.
The same members as those in FIGS. 1 to 3 are denoted by the same reference numerals, 15 is a motor of the electric blower, 16 is a motor cover,
17 is an electric blower storage room, 18 is a code reel, 19 is a code reel case, 20 is an exhaust room, 21 is a filter,
Reference numeral 22 denotes an exhaust port. The fan 14 and the motor 15 of the electric blower are connected to each other.
Covered with.

The cylindrical filter 25 used in the present invention is composed of two layers, a silencer pipe 25a and an exhaust filter 25b. FIG. 5 shows an embodiment of the cylindrical filter 25. FIG. 5A shows a silencer pipe 25a, which is formed of a flame-retardant and air-permeable material for protection from sparks by a brush of a commutator motor, and is formed in a tubular shape and fastened with a stapler 26. ing. Only such a silencer pipe is used in a conventional vacuum cleaner.

In the case of using only the silencer pipe,
Although it is possible to protect other members from sparks caused by the brush of the commutator motor, the exhaust contains fine dust and is not a clean exhaust, so the exhaust is formed in a part of the lower portion of the motor cover 16. By passing the cord reel case 19 through the opened hole to cool the cord reel heated by energization, the cord reel case has a cord outlet, so that unfiltered exhaust is discharged from the outlet. become.

Therefore, the cylindrical filter 2 used in the present invention
5 is a silencer pipe 2 as shown in FIG.
An exhaust filter 25b is overlapped on the upper surface of 5a so as to sufficiently cover the opening formed in a part of the lower portion of the motor cover 16, and is stapled to form two layers. When forming a cylindrical shape, the silencer pipe 2
A part of the stapler 26 can be shared by fastening the exhaust filter 5b and the exhaust filter 25b together.

The cylindrical filter 25 is connected to the motor 12
FIG. FIG. 6 is a rear side sectional view of the vacuum cleaner of the present invention, and the same members as those in FIGS. 1 to 5 are denoted by the same reference numerals. Formed as above,
The motor cover 1 is formed by a cylindrical filter 25 having a two-layer structure of a silencer pipe 25a and an exhaust filter 25b.
The exhaust filter 2 is provided in an opening formed in a part of the lower portion of
The entire surface is covered so as to surround the brush portion of the motor 12 so that 5b faces each other.

The exhaust gas passing through the motor in this way is filtered through an opening formed in a part of the lower portion of the motor cover 16 by the exhaust filter 25b of the cylindrical filter 25 to obtain clean exhaust gas. After passing through the cord reel case 19, the cord reel heated by energization is cooled, and then discharged from the exhaust port along the rear cover of the exhaust chamber.

Although the object of the present invention can be sufficiently achieved by the cylindrical filter 25 formed as shown in FIG. 5B, the exhaust filter 25b is attached to a part of the lower portion of the motor cover 16 as shown in FIG. If the exhaust filter 25 is formed to have a width that can cover the formed opening, the exhaust filter 25 is positioned so as to face the opening formed in a part of the lower portion of the motor cover 16 when the exhaust filter 25 is mounted around the motor. This requires a lot of time and attention in the mounting work, and another device is desired in terms of work efficiency.

FIG. 7 shows another embodiment in order to improve this point. FIG. 7A is a side view of the tubular filter 25, and FIG. 7B is a plan view. First, a silencer pipe 25a is made of a flame-retardant and air-permeable material by stacking the ends in a cylindrical shape, and the exhaust filter 25b is overlapped over the entire circumference of the surface and fastened with a stapler 26. The shape filter 25 is created.

The thus formed tubular filter 25
As shown in FIG. 6, when the motor is attached to the motor, the exhaust filter 25b is present at any position of the cylindrical filter 25, so that the operator can use the opening formed in a part of the lower portion of the motor cover 16. There is no need to perform positioning so as to face the device, and the mounting operation is simplified. As a result, work efficiency can be improved.

The above description has been made in connection with the embodiment in which the cylindrical filter is applied to the silent type vacuum cleaner proposed by the present applicant. However, the present invention is not limited to this, and the same applies to other known vacuum cleaners. The object of the present invention can also be achieved and an effect can be exerted by applying.

[0030]

As described above, according to the present invention, the exhaust gas containing dust passing through the motor of the electric blower is subjected to fine dust by an exhaust filter through a silencer pipe made of a flame-retardant and air-permeable material. By filtering, clean exhaust can be obtained, and it is not necessary to attach a filter to the cooling air supply port to the cord reel case, and manual work such as application of adhesive and application of the filter can be omitted, improving work efficiency. be able to. In addition, since the silencer pipes of different materials are overlapped with the exhaust filter, it is effective in reducing noise.

When the cylindrical filter is formed by superposing and engaging the exhaust filter over the entire outer surface of the silencer pipe, when mounting the cylindrical filter on the motor, Since the exhaust filter also exists, the operator does not need to perform positioning so as to face the opening formed in a part of the lower portion of the motor cover, and the mounting operation is simplified.

[Brief description of the drawings]

FIG. 1 is an external view of a vacuum cleaner.

FIG. 2 is a front sectional view of the electric vacuum cleaner.

FIG. 3 is a plan sectional view of the vacuum cleaner.

FIG. 4 is a front sectional view of the vacuum cleaner.

FIG. 5 is a configuration diagram of a cylindrical filter.

FIG. 6 is a rear side sectional view of the vacuum cleaner.

FIG. 7 is a configuration diagram of another tubular filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3 Case cover 4 Bumper 5 Dust cover 6 Wheel 7 Suction port 8 Dust collection chamber 9 Dust collection meter 10 Filter 11 Partition plate (partition wall) 12 Rectifier plate 13 Anti-vibration cushion 14 Fan of electric blower 15 Electric blower Motor 16 Motor cover 17 Electric blower storage room 18 Code reel 19 Code reel case 20 Exhaust chamber 21 Filter 22 Exhaust port 23 Fan cover 24 Caster stand 25 Cylindrical filter 26 Stapler

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiro Morita 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Naoki Suetsugu 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kenji Aida 2-chome 5-5 Keihanhondori, Moriguchi City, Osaka Prefecture (72) Inventor Toshiyuki Fujiyoshi 2 Keihanhondori, Moriguchi City, Osaka Prefecture 5-7-5 Sanyo Electric Co., Ltd. (72) Inventor Rizo Kobayashi 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A vacuum cleaner in which a motor of an electric blower is covered with a motor cover provided with an opening for exhaust, wherein the exhaust filter is overlapped and engaged with an outer surface of a silencer pipe. A vacuum cleaner, wherein the motor in the motor cover is covered with the filter cover, and the exhaust filter of the cylindrical filter is disposed so as to communicate with an opening of the motor cover. 2. The cylindrical filter is formed by overlapping and engaging an exhaust filter on an outer surface of a silencer pipe in a portion capable of covering an exhaust opening of a motor cover. 2. The vacuum cleaner according to 1. 3. The vacuum cleaner according to claim 1, wherein the cylindrical filter is formed by overlapping and engaging an exhaust filter over the entire outer surface of the silencer pipe.