KR20020034298A - A vacuum cleaner - Google Patents

Abstract

PURPOSE: A vacuum cleaner is provided to perform efficiently a cleaning work by mounting an auxiliary vacuum cleaner to the vacuum cleaner. CONSTITUTION: A vacuum cleaner comprises dirt collecting hose(15), a suction brush(13), a suction extension pipe(14) and a handle grip(10) having a switch(16) formed at an upper portion of the suction extension pipe(14). An auxiliary vacuum cleaner(30) is connected to a lower portion of the suction extension pipe(14). The auxiliary vacuum cleaner(30) comprises an outer case coupled at the suction extension pipe(14), a dirt collecting container having air introducing pipe communicated to the suction extension pipe(14), a filter and a driving section having a fan motor. The dirt collecting container is coupled at the outer case. The filter is installed at a coupling boundary portion between the dirt collecting container and the outer case.

Description

Vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a smaller auxiliary vacuum cleaner driven by a separate drive unit.

In general, the vacuum cleaner, as shown in Figure 1, the power cord 12 for applying power to the cleaning main body 11 from the outside, the suction motor 18 mounted inside the cleaner body 11 and the suction motor. An unshown power supply unit for applying power to the 18, a switch 16 operated by the user to drive the suction motor 18, and the dirt on the surface to be cleaned with the air generated by the driven motor 18 together with the air. Suction brush 13, the suction brush 13, and the suction extension pipe 14 and the dust collecting hose 15 connecting the dust collecting bag 17 of the cleaner body.

Vacuum cleaner having the above configuration, after the user connects the power cord 12 with an external power source (not shown) for cleaning, and operates the switch 16 located on the handle 10 inside the cleaner body 11 The suction motor 18 mounted on the driving unit is driven, and a negative pressure is generated as the motor 18 is driven, so that air containing dirt is sucked from the suction brush 13, and the sucked air is sucked in the extension tube 14 and the dust collector. After entering the dust collecting bag 17 through the hose 15, clean air filtered out of the dust collecting bag 17 is discharged to the outside through an exhaust grill (not shown) located on the rear of the cleaner body (11).

However, the vacuum cleaner configured as described above has a problem in that a vacuum cleaner cannot be used in a place where a power plug for inserting a power cord 12, such as a staircase or a veranda, located inside and outside a building, is not prepared.

In addition, there is a disadvantage in that it is not easy to clean the dust or heavy dirt present on the cleaning surface only by the force of the suction motor 18 built in the cleaner 11, the cleaning area to be cleaned by the user is relatively large, confectionery Even when cleaning the parts that can be easily cleaned as if the back is off, there was also the hassle of bringing the cleaner body 11 to the place to be cleaned and connecting the power.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum cleaner in which a user can efficiently clean the vacuum cleaner equipped with an auxiliary vacuum cleaner.

1 is a perspective view of a general vacuum cleaner.

Figure 2 is a perspective view of a vacuum cleaner equipped with a secondary vacuum cleaner according to the present invention.

Figure 3 is an exploded perspective view of the secondary vacuum cleaner shown in FIG.

Figure 4 is a cross-sectional view of the secondary vacuum cleaner shown in FIG.

5 is a front view showing the main portion of the secondary vacuum cleaner shown in FIG.

6 is a driving circuit diagram of the auxiliary vacuum cleaner shown in FIG.

7a to 7b show the main parts of the vacuum cleaner shown in FIG.

8A to 8B are cross-sectional views for explaining an operating state of the auxiliary vacuum cleaner according to the present invention.

<Description of the symbols for the main parts of the drawings>

11: cleaner body 11a: receiving part

14: suction extension pipe 30: auxiliary vacuum cleaner

31: outer case 31a: fixing member

31b: Jamming jaw 31c: External terminal

32: dust collector 32a: air inlet pipe

33 filter 34 drive unit

35 DC motor 36a rechargeable battery

36b: switch 37: suction fan case

38: suction fan 39: exhaust grill

40: charging connection 41: rectifier circuit

According to the present invention for achieving the above object, as the fan motor is driven by the operation of a drive switch electrically connected to an external power source, the dust sucked through the suction brush and the suction extension tube connected thereto is collected in the dust collecting chamber. In the vacuum cleaner, the suction tube is provided with a secondary vacuum cleaner driven by a separate built-in drive unit is provided with a vacuum cleaner characterized in that the dust in the air sucked through the suction brush is bypassed and collected separately.

The auxiliary vacuum cleaner includes an outer case coupled to the suction extension tube and an air inlet tube communicating with the suction extension tube, and a dust collecting tube coupled to the outer case, and a filter installed to be incorporated in the coupling boundary of the dust collecting tube and the outer case. It is preferable to include a drive unit having a fan motor installed between the filter and the outer case.

Hereinafter, a configuration of a vacuum cleaner according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to Figure 2, the vacuum cleaner according to the invention handles including a switch 16 in the upper portion of the suction extension pipe 14 for connecting the suction brush 13 to the dust collecting hose 15 connected to the main body (not shown) (10) is formed, and a small auxiliary vacuum cleaner (30) is connected to the lower portion thereof.

The auxiliary vacuum cleaner is a component for characterizing the present invention. Referring to FIGS. 3 and 4, the auxiliary vacuum cleaner includes an exterior case 31, a dust collecting cylinder 32, a filter 33, and a driving unit 34. .

The outer case 31 is installed in the suction extension tube 14 by a fixing member 31a formed on one side of the outer case 31. The exterior case 31 is formed in a cylindrical shape, and an exhaust grill 39 is installed at one end thereof, and a motor case 37f into which the driving unit 34 is inserted is formed at the other end thereof. 3 to 4, the fixing member 31a is formed in a tubular shape of which one side is cut off, and the uncut portion is formed of a member having elastic force. Therefore, the suction extension tube 14 can be fitted by force through the cut-out portion. Although not shown, the fixing member 31a may be formed in various forms such as a clamping member, a bolt, a nut, and the like, so that the exterior case 31 may be coupled to the suction extension pipe 14. Meanwhile, as illustrated in FIGS. 3 and 7A, a locking jaw 31b is formed at one side of the fixing member 31a, and an external terminal electrically connected to the driving unit 34 at the end of the locking jaw 31b. 31c) is installed. In addition, on the inner circumferential surface of the outer case 31, an inner terminal 31e for electrically connecting the drive unit 34 to the outer terminal 31e is installed.

In addition, the suction extension pipe 14 is coupled to the dust collecting cylinder 32 having the air inlet pipe 32a connected to the suction extension pipe 14 on one side. Dust collector 32 is formed in a cylindrical shape with one side closed, the air inlet pipe (32a) formed on the outer circumferential surface is connected to the suction extension tube 14 and the dust collector (32) is introduced into the suction extension tube (14) The air containing the dirt is bypassed to the dust collector (32).

On the other hand, the filter 33 is installed on one open side of the dust collector 32, the dust collector 32 to filter the dirt from the air, including the dirt sucked through the air inlet pipe (32a) from the suction extension pipe (14) Load dirt into the

The driving unit 34 includes a fan motor 35, a rechargeable battery 36a, and a charging connection unit 40, and is installed on a coupling boundary of the filter 33 and the outer case 31. The fan motor 35 includes a DC motor 35, a suction fan case 37, and a suction fan 38 installed inside the suction fan case 37. The suction fan case 37 is formed in a cylindrical shape with one side closed. The DC motor 35 has a rotary shaft 35a at one end, and the rotary shaft 35a is coupled to the suction fan 38. The rotating shaft 35a is rotatably installed through the center of the closed side of the suction fan case 37, and the suction fan 38 is installed inside the suction fan case 37, and the closed side of the suction fan case 37 is The DC motor 35 is installed outside the rotating shaft 35a. In addition, a plurality of air inlets 37b are formed on the closed surface of the suction fan case 37 in a concentric manner around the rotating shaft 35a. Accordingly, the air introduced into the dust collecting container 32 is discharged to the outside of the auxiliary vacuum cleaner 31 through the exhaust grill 39 through the suction fan 38 and the air inlet 37b.

As shown in FIGS. 5 and 6, the rechargeable battery 36a is electrically connected to the DC motor 35 and electrically connected to the charging connection unit 40. Therefore, when the switch 36b is operated, the DC motor 35 to which the electric current charged in the power source 36a is applied is driven, whereby negative pressure is generated inside the dust collecting container 32. As shown in FIG. 5, a plurality of such rechargeable batteries 36a are annularly mounted along the outer circumferential surface of the DC motor 35 in a space between the exterior case 31 and the DC motor 35. The rechargeable batteries 36a are each electrically connected to one another in series and in parallel. As shown, in this embodiment, the rechargeable batteries 36a are connected in series, and the connected rechargeable batteries 36a are electrically connected to the switch 36b and the DC motor 35 again. Although not shown, the rechargeable battery 36a may have various shapes and capacities according to the type of the DC motor 35 used. In addition, the switch 36b may be installed on the outer circumferential surface of the outer case 31 as shown in FIG. 3, and may also be installed on the suction extension pipe 14 and the handle part 10 (see FIG. 2). It is natural to be.

Connect the inner terminal 31e formed on the inner circumferential surface of the charging case 40, the outer case 31, the outer terminal 31c formed on the outer surface of the outer case 31, and the inner terminal 31e and the outer terminal 31e. And a conductive wire 31d provided to be included in the inner surface of the fixing member 31a and a charging terminal 11c (see FIG. 7A) installed in the cleaner body 11. As shown in FIG. 6, the commercial AC power applied inside the cleaner 11 is converted into DC through a predetermined rectifier circuit 41. The converted direct current is applied into the auxiliary vacuum cleaner 30 through the charging connection unit 40. The positive electrode of the rechargeable battery 36a mounted in the auxiliary vacuum cleaner 30 is connected to the charging connection part 40, the DC motor 35, and the switch 36b connected to the DC motor 35. When the switch 36b is operated, the DC motor 35 is driven by the current applied from the rechargeable battery 36a. The charging connection part 40 includes an inner terminal 31e installed inside the outer case 31, an outer terminal 31c provided at the end of the fixing member 31a, and an inner surface of the receiving part 11a provided on the outer surface of the cleaner. The external terminal 31c is connected to the terminal 11c and the internal terminal 11e, and includes a conductive wire 31d included in the inner surface of the outer case 31. Accordingly, when the locking jaw 31b is mounted on the locking groove 11b, the charging connection part 40 is connected. When the charging connection unit 40 is connected, the external alternating current introduced into the cleaner body 11 charges the rechargeable battery through the charging connection unit 40 via a predetermined rectifier circuit 41 that converts AC into direct current. You can do it. Although not shown, the rectifier circuit 40 may be installed in the auxiliary vacuum cleaner 30 as a matter of course. In addition, since the rectifier circuit 40 may be any technology known in the art, the rectifier circuit 40 will no longer be described in detail.

As shown in FIGS. 7A and 7B, when not using the cleaner, the locking jaw 31b may be mounted on the locking groove 11b formed in the receiving part 11a of the cleaner body 11. When the locking jaw 31b is hooked to the locking groove 11b, the external terminal 31c installed at the end of the locking jaw 31b and the charging terminal 11c formed inside the locking groove 11b are connected. . At this time, the charging terminal 11c is electrically connected to the inside of the cleaner, and a current applied through the power cord is applied to the rechargeable battery 36a through the charging terminal 11c. The rechargeable battery 36a may be charged by the applied current.

Hereinafter, the operation of the vacuum cleaner according to the embodiment of the present invention having the above configuration will be described with reference to the accompanying drawings.

As shown in FIG. 8A, when only the auxiliary vacuum cleaner 30 operates alone, the suction extension tube 14 is first separated from the dust collecting hose 15 (see FIG. 2), and then the outer diameter of the suction extension tube 14 is reduced. A lid (not shown) having the same inner diameter prevents the open upper end of the suction extension tube 14. And the switch 36b provided in the outer peripheral surface of the drive part case 31 is operated, and it is set to an on position. Accordingly, the DC power charged in the power supply unit 36 is applied to the DC motor 35 to drive the DC motor 35. When the DC motor 35 is driven, the rotary shaft 35a integrally formed on one side of the DC motor 35 rotates, and the suction fan 38 coupled to the rotary shaft 35a simultaneously rotates to generate negative pressure. Let's do it. The generated negative pressure is transferred to the suction brush 13 (see FIG. 2) through the suction extension pipe 14, and the suction brush 13 sucks the dirt on the surface to be cleaned together with the air by the negative pressure. The air containing the sucked dirt flows into the dust collector 32 through the suction extension pipe 14 and the air inlet pipe 32a, and the introduced air passes through the filter 33, the suction fan 38, and the suction fan case 37. After passing through the air inlet (37b) of the) is discharged to the outside through the exhaust grill (39). At this time, the filter 33 separates the dirt from the sucked air, and the separated dirt is loaded in the dust collecting container 32 and cleaning is completed when all the dirt on the surface to be cleaned is loaded in the dust collecting container 32.

8B illustrates a method of discharging dirt loaded on the dust collecting container 32.

As shown, when operating the switch 16 of the handle 10 formed in the suction extension pipe 14, the power is applied from the outside to the suction motor 18 mounted inside the cleaning main body 11, the suction motor ( 18) is driven. The driven suction motor 18 generates a negative pressure, and the generated negative pressure is transmitted to the suction brush 13 connected to the cleaner body 11 through the dust collecting hose 15 and the suction extension pipe 14. The suction brush 13 sucks the dirt on the surface to be cleaned together with the air by the negative pressure transmitted, and the sucked air is introduced into the cleaner body 11 through the suction extension pipe 14. At this time, some of the air sucked through the suction extension pipe 14 is introduced into the dust collecting container 32 through the air inlet pipe 32a connected to the suction extension pipe 14. The air introduced into the dust collecting container 32 through the air inlet pipe 32a is circulated inside the dust collecting container 32, and, thus, the filth loaded in the dust collecting container 32 is ubiquitous in the circulating inlet air. The inlet air containing the dirt is circulated in the dust collecting container 32 and then discharged to the suction extension pipe 14 through the air inlet pipe 32a, and the air including the dirt of the dust collecting container 32 is transferred to the cleaner body 11. It is omnipresent in the incoming air. Therefore, the air containing the dirt loaded in the dust collecting container 32 flows into the cleaner main body 11 to discharge the dirt loaded inside the dust collecting container 32.

In addition to the above operation, the suction motor 18 of the cleaner body 11 may be driven to clean heavy dirt or old dust on the surface to be cleaned which is not cleaned by the suction motor 18 of the cleaner body 11 alone. At the same time, if the auxiliary vacuum cleaner 30 is also driven at the same time, the suction force is increased, and the surface to be cleaned can be cleaned.

On the other hand, the cyclone dust collector according to the present embodiment may be employed in a canister type vacuum cleaner, but it is obvious that the cyclone dust collector may be employed in an upright vacuum cleaner (not shown).

According to the vacuum cleaner equipped with an auxiliary vacuum cleaner according to the present invention as described above, the auxiliary vacuum cleaner is mounted on the suction extension tube so that only the suction extension tube can be separated and cleaned without connecting the vacuum cleaner to a power source.

Therefore, when a simple cleaning that does not need to be connected to the vacuum cleaner body or difficult to connect the power supply of the vacuum cleaner, there is an effect that can be simply cleaned by separating the suction extension tube.

In addition, when the dust is difficult to clean only by the force of the suction motor mounted in the cleaner body, or when cleaning heavy dirt, using an auxiliary vacuum cleaner at the same time as the suction motor of the cleaner body there is an easy cleaning effect.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are intended to fall within the scope of the claims set forth.

Claims (5)

In a vacuum cleaner in which dust collected through a suction brush and a suction extension pipe connected thereto is collected in a dust collecting chamber as a fan motor is driven by an operation of a drive switch electrically connected to an external power source. The suction tube is equipped with an auxiliary vacuum cleaner driven by a separate built-in drive unit vacuum cleaner, characterized in that the dust in the air sucked through the suction brush is bypassed and collected separately. According to claim 1, wherein the auxiliary vacuum cleaner, An outer case coupled to the suction extension tube; A dust collecting passage having an air inlet tube communicating with the suction extension tube and coupled to the outer case; A filter installed to be embedded in a coupling boundary of the dust collecting container and the outer case; And a driving unit having a fan motor installed between the filter and the outer case. The method of claim 2, wherein the driving unit, A rechargeable battery built into the outer case; A motor electrically connected to the rechargeable battery to drive the fan motor; And a charging connection unit for electrically connecting the rechargeable battery to an external power source. The method of claim 3, wherein the charging connection portion, An external terminal provided at an end portion of a locking step formed to protrude to the outside of the outer case; An inner terminal formed on an inner circumferential surface of the outer case and electrically connected to the rechargeable battery; And a charging terminal provided inside the locking groove provided in the cleaner body formed to hold the locking jaw, and electrically connected to an external power introduced into the cleaner body. The method of claim 3, wherein The rechargeable battery is a vacuum cleaner, characterized in that a plurality of annular arrangement in the outer case.