KR19990016072A - Blower of vacuum cleaner - Google Patents

Abstract

The present invention relates to a blower for a vacuum cleaner, comprising: a first air inlet port and a first air outlet port formed to penetrate through a cover member of a main body so that air containing dust or the like can flow in and out; 1 A second air inlet and a second air outlet formed to penetrate the exhaust wind around the air inlet to blow air to the outside, and sliding to selectively open and close the first, second air inlet and the second air outlet An actuating lever member, an actuator for sliding the lever member left and right according to an electrical signal, an actuator driver for inputting and outputting an electrical signal to drive the actuator, and a switching unit for turning on and off driving power. It is characterized by including.

Therefore, according to the present invention, it is possible to automatically convert the intake and exhaust of the outside air by simply operating a switch without having to detach the clamp and attach it to the air exhaust port as in the related art, thereby further increasing user convenience.

Description

Blower of vacuum cleaner

The present invention relates to a blower of a vacuum cleaner, and more particularly, a vacuum cleaner which can perform a blower function simply by changing the direction of the flow path of the exhaust wind according to an electronic operation without attaching or detaching a separate clamp to the air outlet. Relates to a blower device.

As shown in FIG. 1, the conventional vacuum cleaner is provided with a cover member 2 on an upper portion of the main body 1, and an air inlet and an outlet 2a (for each of the front and rear surfaces of the cover member 2). 2b) is formed.

A clamp 3 is connected to the outside of the suction port 2a to connect a hose to which a brush or other cleaning tool can be attached. An exhaust filter 5 is provided inside the discharge port 2b.

On the other hand, a vacuum motor 4 is provided in the main body 1, and a dust collecting filter is provided in front of the vacuum motor 4 although not shown.

In the conventional vacuum cleaner provided as described above, the internal air of the main body 1 is forcedly circulated according to the operation of the vacuum motor 4, thereby forming a high vacuum state.

At this time, as shown in the direction of the arrow, when air containing dust or contaminants from the outside is sucked through the inlet port 2a due to a high pressure difference inside and outside the main body 1, it is filtered through a dust collecting filter (not shown). After this, the filtered air is converted back into clean air via the exhaust filter 2b of the discharge port 2b and discharged to the outside.

However, when it is difficult to clean, for example, dust such as wire mesh or corners, it can be easily removed by inhaling after blowing with exhaust wind.

However, conventionally, the clamp 3, which has been attached to the inlet port 2a, is detached and moved to the exhaust port 2b, or a separate clamp 3 or 3a is provided on the inlet and exhaust port 2a and 2b sides, respectively. There was an uncomfortable problem that each attachment should use.

Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a blower for a vacuum cleaner that enables to easily change the flow path of the exhaust wind electronically without having to attach or detach a separate clamp to the air outlet. To provide.

In order to achieve the above object, a blower of a vacuum cleaner according to the present invention includes a first air inlet and a first through which a cover member of a main body is formed so as to allow air containing dust or the like to flow in and out. Optionally, an air outlet port, a second air inlet port and a second air outlet port formed to penetrate and exhaust the exhaust wind around the first air inlet port, and the first and second air inlet ports and the second air outlet port. A lever member that is slidably operated so as to be opened and closed by a valve; an actuator for sliding the lever member to the left and right according to an electrical signal; an actuator driver for inputting and outputting an electrical signal to drive the actuator; And a switching unit for turning on and off.

1 is a cross-sectional view schematically showing the internal configuration of the conventional vacuum cleaner and the direction of the flow path of air.

Fig. 2 is a sectional view showing the main parts of a blower of the vacuum cleaner according to the present invention;

3 is an overall cross-sectional view for explaining the operation of the blower of the vacuum cleaner according to the present invention.

* Explanation of symbols for the main parts of the drawings

20: cover member, 21: first air intake port,

22: first air outlet, 23, 24, 25: second air inlet,

26, 27, 28: second air outlet, 30; clamp,

50: lever member, 52: through hole,

60: actuator, 70: actuator drive unit,

80: switching unit.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

2 is a sectional view showing main parts of the blower of the vacuum cleaner according to the present invention, and FIG. 3 is an overall sectional view for explaining the operation of the blower of the vacuum cleaner according to the present invention.

In the drawing, a first air inlet 21 is formed in the front of the cover member 20 of the cleaner according to the present invention so that air including dust or the like is introduced therein, and a brush or other cleaning tool is provided outside the inlet 21. A clamp 30 is mounted to connect the attachable hose.

Of course, the first air outlet 22 is formed through the cover member 30 to discharge the filtered air.

In addition, a plurality of second air inlets 23, 24, 25 and second air outlets 26, 27, 28 are further formed around the first air inlet 21.

In particular, the cover member 20 has a lever member 50 on the plate which can selectively open and close the first and second air inlets 21 and 24 and the second air outlets 26 and 27 to the left and right. Combined to be slidable.

Here, the lever member 50 is formed through one through-hole 52 so as to convert the air flow path.

In addition, the lever member 50 may be coupled to an actuator 60 such as a solenoid so that the lever member 50 may be slid left and right according to an electrical signal, and the switching unit 80 turns on / off the driving power. The actuator driver 70 for inputting and outputting an electrical signal is connected to the actuator 60 so as to drive the actuator 60.

The switching unit 80 may be installed on the cover member 20 or on a cleaner handle not shown.

The operation of the blower of the vacuum cleaner according to the present invention provided as described above will be described with reference to FIGS. 2 and 3.

First, when cleaning the outside air containing dust, etc., by holding the switching unit 80 in an off state (off), the actuator 60 is not operated so that the lever member 50 does not move and maintains the current position.

At this time, the through-hole 52 of the lever member 50 and the first air inlet 21 are communicated with each other, while the second air inlet 24 and the second air outlet 26 and 27 are closed.

The flow direction of the air in this state is introduced into the main body 10 as shown by the dotted arrow, and is usually discharged after being filtered through clean air through the first air outlet 22.

On the other hand, when it is necessary to turn the exhaust wind to blow back to the outside, when the switching unit 80 is turned on to send an electric signal to the actuator driver 70, the actuator 70 by the drive unit 70 ), The lever member 50 is slidably moved.

At this time, the second air inlets 23, 24, 25 are opened to communicate with the inside of the main body 10, and at the same time, the through hole 62 and the second air outlet 26 of the lever member 60 ( 27) communicate with each other.

In this case, the air flow direction is introduced into the main body 10 through the second air inlets 23, 24, 25, as shown by the solid arrows, and then again by the rotational force of the vacuum motor 40, the second air outlet. Return through (26) (27).

Thereafter, the returned air exits toward the first air inlet 21 through the second air outlet 28 and blows to the outside.

Of course, since the first air intake port 21 is blocked by the lever member 50, it is not possible to suck air into the body 10 through this.

According to the present invention described above, it is possible to further increase the user's convenience because it is possible to automatically switch the intake and exhaust of the outside air by simply operating a switch without having to detach the clamp and attach it to the air exhaust port as in the related art.

Claims (4)

A first air inlet port and a first air outlet port formed through the cover member of the main body so that air including dust and the like can flow in and out, and the clamp is mounted; A second air inlet port and a second air outlet port formed to penetrate the exhaust air around the first air inlet port and blow the exhaust air to the outside; A lever member slidingly operated to selectively open and close the first and second air inlets and the second air outlet; An actuator for sliding the lever member left and right according to an electrical signal; An actuator driver for inputting and outputting an electrical signal to drive the actuator; And a switching unit for turning on and off the driving power. The method of claim 1, The lever member is a blower of the vacuum cleaner, characterized in that the through-hole is formed so as to convert the air flow path. The method of claim 2, And the lever member is fixed to close the second air inlet and the second air outlet in the off state of the switching unit and to communicate only the through-hole and the first air inlet during the vacuum suction cleaning. The method of claim 2, And the lever member is moved to open the second air inlet in the on state of the switching unit and to communicate the through-hole and the second air outlet at the time of blowing the exhaust wind.