KR20050012120A - A vacuum cleaner - Google Patents

Abstract

An object of the present invention is to provide an electric vacuum cleaner capable of disinfecting a filter disposed on the downstream side of a commutator motor for a blower.

The vacuum cleaner of the present invention is provided between a hose connecting port for connecting a connection hose provided at the front end of the cleaning main body, an exhaust port provided in the cleaning main body, a commutator motor for a blower installed in the cleaning main body, and a commutator motor and an exhaust port. A filter, a filter provided in the air flow path from the commutator motor to the exhaust port, and an ozone generator in the air flow path from the filter to the exhaust port and provided in the vicinity of the filter are provided. In the vacuum cleaner of the present invention, the ozone generator is controlled to operate for a predetermined time after the blower stops.

Description

Electric vacuum cleaner {A VACUUM CLEANER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly, to disinfection of a filter provided between a commutator motor for a blower of a cleaning body and an exhaust port.

In the conventional vacuum cleaner, the air containing the dust sucked from the suction port enters the dust collecting chamber to remove the dust from the dust collecting bag, and then discharges the exhaust vent and the air for exhausting the air out of the cleaner through the blower, the blower motor. It is disperse | distributed and exhausted by the reflux exhaust apparatus sent to a flow path (refer patent document 1). Moreover, in this vacuum cleaner, the commutator motor is used for the blower motor similarly to the conventional one. By operating the commutator motor, carbon powder is generated and scattered by the contact of the motor with the carbon brush of the motor. If the reflux air contains carbon powder, there arises a problem that the floor to be cleaned becomes dirty due to the reflux air returned to the floor suction port. For this reason, in the conventional vacuum cleaner, reflux air was refluxed through a path not passing through the commutator motor, while air discharged out of the cleaner was discharged through a filter for collecting carbon powder. However, in the vacuum cleaner configured as described above, there is a problem that cooling of the commutator motor is insufficient because the amount of reflux air is larger than the amount of discharge air.

For this reason, in the recent exhaust reflux type vacuum cleaner, the amount of dust removed from the dust collection chamber is used for cooling the commutator motor, the air after cooling the commutator motor is classified into reflux air and discharge air, and each filter Through each exhaust port.

By the way, in this commercial exhaust reflux type vacuum cleaner, the process of disinfecting the filter on the motor wake side for the blower was not particularly performed. For this reason, the demand from the consumer about filter sterilization is increasing.

On the other hand, in the conventional vacuum cleaner, as a sterilization method, in order to remove pests such as various germs and mites contained in the dust accumulated in the dust collecting chamber, a dusting bag set in the dust collecting chamber is attached with a drug for sterilization and insecticide. there was. In addition, in order to remove the odor generated from the dust accumulated in the dust collecting chamber, a deodorizing filter physically adsorbing the odor component was provided in the dust collecting chamber and the like.

However, the deodorizing filter has to be subjected to chemical treatment at the target, and the cost is relatively high. In addition, the deodorization filter required periodic replacement due to the property of adsorbing malodorous components physically.

Therefore, paying attention to the fact that ozone (O ₃ ) has been scientifically confirmed to have a deodorizing action and a sterilizing action, it was conceived to install an ozone generator at a dust collection suction port to which a freely detachable hose is connected (Patent Document 2).

By the way, even if this method is applied to the above-mentioned commercially available exhaust reflux vacuum cleaner, since the distance between the ozone generator and the filter arranged on the downstream side of the blower motor is long, the filter cannot be disinfected.

<Patent Document 1> Japanese Patent Application Laid-Open No. 2001-178664

<Patent Literature 2> Japanese Unexamined Patent Publication No. 1-18750

SUMMARY OF THE INVENTION The present invention has been made in view of the problems existing in the prior art, and an object thereof is to provide an electric vacuum cleaner for disinfecting a filter disposed on the downstream side of a commutator motor for a blower.

In order to achieve this object, the vacuum cleaner according to the present invention includes a hose connection port for connecting a connection hose provided at the front end of the cleaning main body, an exhaust port provided in the cleaning main body, a commutator motor for a blower installed in the cleaning main body, and a commutator. And a filter installed in the air flow path from the motor to the exhaust port and an ozone generator installed in the vicinity of the filter in the air flow path from the filter to the exhaust port, wherein the ozone generator is controlled to operate for a predetermined time after the blower is stopped. .

In the above invention, the vacuum cleaner is an exhaust reflux vacuum cleaner, and the exhaust port is separately formed by a reflux exhaust port for returning air to the hose connection port and an exhaust port for discharging air into the room, and the filter May be formed separately from the reflux air filter and the discharge air filter, and the ozone generator may be disposed at least in the air flow path from the reflux air filter to the reflux exhaust port.

1 is an external perspective view of a cleaning main body of an electric vacuum cleaner according to an embodiment of the present invention.

2 is a plan view of a state where the upper case of the cleaner body is removed.

3 is a front sectional view of the cleaner body.

4 is a cross-sectional view taken along the line I V-I V in FIG. 1.

FIG. 5 is a cross-sectional view taken along line V-V in FIG. 1, in which no external force is applied to the display lens. FIG.

FIG. 6 is a cross-sectional view taken along line V-V in FIG. 1, showing an external force acting on the display lens.

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

1 Cleaning body 3 Hose port

3a inlet 3b reflux

7 Exhaust vent 13 Commutator motor

14 Blower 16 Filter for reflux air

17 Ozone Generator 18 Reflux Vent

Embodiments of the present invention will be described below with reference to FIGS. 1 is an external perspective view of a cleaning main body of an electric vacuum cleaner according to an embodiment of the present invention. 2 is a plan view of the upper case of the cleaning main body removed. 3 is a front sectional view of the cleaning main body. 4 is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a sectional view taken along line V-V in FIG. 1, and the external force of the display lens is not applied. FIG. FIG. 6 is a V-V cross-sectional view of FIG. 1, in which an external force is applied to the display lens. 2 and 3, solid or dashed arrows indicate the flow direction of air.

In the vacuum cleaner according to the embodiment, a connection hose (not shown) having an intake flow path and a reflux flow path is connected to a hose connection port 3 of the cleaning base body 1 shown in FIG. 1, and a floor suction port (not shown) is connected to a distal end thereof. Used in conjunction.

In the cleaning main body 1, as shown in Fig. 1, the case 2 forming the outer wall of the cleaning main body 1 is divided into an upper case 2a and a lower case 2b. In addition, at the front end of the case 2, a hose connecting port 3 for connecting a connection hose (not shown) is formed. The inlet port 3a and the reflux port 3b are formed in the hose port 3 (see Fig. 2). When the connection hose is connected to the hose port 3, the inlet port 3a communicates with the intake flow path of the connection hose and the reflux port 3b is the flow path of the connection hose. Is in communication with.

In addition, a handle 5 for carrying around the cleaning body 1 is attached to the upper end of the cleaning body 1. In addition, an operation display unit 20 is provided on the upper surface of the upper case of the cleaning body 1. A rear wheel 6 for moving the cleaning body 1 is attached to the rear side of the cleaning body 1. The center portion of the rear wheel 6 is used as a discharge exhaust port 7 for releasing a part of the air sucked into the cleaning main body 1 to the outside.

Next, the cleaner interior will be described. As shown in Fig. 2, a dust collecting chamber 11 is formed inside the suction port 3a of the hose connecting port 3. A dust bag 12 is attached to the dust chamber 11, and dust sucked from the floor suction port is removed from the dust bag 12 and accumulated. A blower 14 driven by the commutator motor 13 is attached to the rear of the dust bag 12. . The commutator motor 13 is arranged on the rear side of the blower 14, and the amount of air blown out from the blower 14 is formed to cool the commutator motor 13 through the bracket 13a of the commutator motor 13. The bracket 13a is provided with a discharge port 13b for discharging air cooled in the commutator motor 13 to the outside of the bracket 13a. A power cord storage unit 19 is provided at the rear of the commutator motor 13.

Further, under the commutator motor 13, a discharge air filter 15 for removing carbon powder contained in the air discharged to the outside of the cleaning main body 1 is provided. The air sent to the discharge air filter 15 from the discharge port 13b of the bracket 13a is a part of the air blown out from the blower 14, and is exhausted from the exhaust port (emission vent) 7 formed in the center of the rear wheel 6 (see FIG. 3).

On the left side of the commutator motor 13, after the dust is removed from the dust collecting bag 12, a reflux air filter 16 for removing carbon powder contained in the air returned to the floor suction port is provided. In addition, an ozone generator 17 to which a high voltage is applied is provided on the downstream side of the reflux air filter 16 and near the reflux air filter 16. Below the ozone generator 17, an exhaust port (reflux exhaust) 18 for blowing the reflux air to the reflux port 3b of the hose connection port is provided.

Next, the configuration around the operation display unit 20 provided on the upper part of the commutator motor 13 will be described.

The driving indicator 20 includes a makeup cover 22 mounted on the upper case 2a forming a gentle arc, a light emitting member 30 partially exposed from the makeup cover 22 to the top surface of the makeup cover, a lens holder 40 for sticking the light emitting member 30, and And a base plate 52 to which a light emitting element (LED) 51 is attached, and a base plate 60 to form a base for mounting the base plate 52 and a support for the lens holder 40.

The light emitting member 30 has a long rectangular shape in the left and right direction when viewed in a plan view (see Fig. 1), and forms a gentle arc in the left and right directions similar to the makeup cover 22 of the upper case 2a, and the center portion is formed by the pressing lens part 31. (See Figure 4). 5, the light emitting member 30 is fitted in the hole 23 formed in the makeup cover 22 so that the lens portion 31 is exposed to the upper surface of the makeup cover 22. As shown in FIG. The light emitting member 30 is provided with an attachment piece 32 on the periphery of the lens 31. The attachment piece 32 also has a gentle arc shape similar to the makeup cover 22 of the upper case 2a. Further, the light emitting member 30 is attached in such a manner that the attachment piece 32 is fitted from below with respect to the elastic protrusion member 24 formed on the makeup cover 22.

The lens holder 40 supports the lower surface of the attachment piece 32 of the light emitting member 30, and sandwiches the light emitting member 30 with the makeup cover 22 of the upper case 2a, and forms a gentle arc like the makeup cover 22 of the upper case 2a. The drooping wall 42 formed in the outer periphery of the upper surface wall 41 and the upper surface wall 41 is provided. The lens holder 40 has a lower end of the drooping wall 42 supported by the base 60 and fixed thereto (see Fig. 4). The lens holder 40 has a vertical wall 43 surrounding the LED 51. The left and right walls 43a of the vertical wall 43 are inclined to spread upward to diffuse light (see FIG. 4), and the front and rear walls 43b are formed vertically (see FIG. 5). In the lens holder 40, a first rib wall 44 and a second rib wall 45 are formed between the front and rear walls 43b and the drooping wall 42 of the vertical wall 43.

The base plate 52 is fitted upward from the elastic protrusion member 61 protruding upward from the base stand 60 and is attached to the base stand 60.

As shown in Fig. 5, the distance s1 between the upper surface of the base plate 52 and the lower end of the vertical wall 43 of the lens holder 40 is formed to have a predetermined length (for example, 1.5 mm). In the upper surface portion of the base 60, third rib walls 62 and fourth rib walls 63 protruding upward are formed at front and rear positions of the base plate 52. The distance s2 between the upper end of the third rib wall 62 and the lower end of the first rib wall 44 described above is formed to have a predetermined length (for example, 0.5 mm), and the upper end of the fourth rib wall 63 and the above-described second second wall The distance s3 from the lower end of the rib wall 45 is also formed at a predetermined length (for example, 0.5 mm). Moreover, s2 and s3 are the same length, and are formed smaller than s1.

The operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.

When the knob switch (not shown) is put in, the blower 14 is driven and an air suction operation including dust at the floor intake is started. The air sucked into the cleaning main body 1 from the hose connecting port 3 is sent from the suction port 3a to the dust collecting bag 12, and is damped by the dust collecting bag 12. It is sent from the blower 14 through the bracket 13a to the periphery of the blower commutator motor 13 to cool the commutator motor 13. At this time, the commutator motor 13 generates carbon powder by contact with the carbon brush and the commutator. This carbon powder is contained in the air cooling the commutator motor 13, and is discharged from the outlet 13b to the outside of the bracket 13a. After cooling the commutator motor 13, the majority of the air including carbon powder is passed through the ozone generator 17 after the carbon powder is removed from the reflux air filter 16, and the reflux of the hose connection port 3 from the reflux exhaust port 18 is provided. It is refluxed to the floor suction port through the exit 3b and the return flow path of the connection hose.

The remaining portion of the air containing the carbon powder by cooling the commutator motor 13 is discharged to the outside through the exhaust vent 7 after the carbon powder is removed from the discharge air filter 15. In this way, since the air discharged from the blower 14 is used to cool the commutator motor 13, there is no problem of lack of cooling air of the commutator motor 13. In addition, by releasing a part of the air sucked into the cleaning main body 1, the temperature rise of the air cooling the commutator motor 13 is avoided.

In addition, by installing the reflux air filter 16 on the downstream side of the commutator motor 13, adhesion of carbon dust and dust to the electrode to which the high voltage of the ozone generator 17 is applied is prevented, and a short circuit accident in the ozone generator 17 is avoided. do. In addition, since the air from which carbon powder has been removed is refluxed to the floor intake port, the cleaning floor surface does not become dirty. In addition, since the carbon powder is removed from the air discharged from the discharge vent 7, it does not contaminate the room.

Next, when the cleaning operation is stopped by the knob switch, the ozone generator 17 is operated for a predetermined short time (for example, about 5 seconds) after the operation of the blower 14 is stopped. As a result, ozone generated in the ozone generator 17 surrounds the filter 16 for reflux air, and the reflux air filter 16 is sterilized by the sterilization action of ozone. Therefore, bacteria do not adhere to the surface of the cleaning floor by the reflux air.

In addition, since the driving display unit 20 according to the present embodiment is configured as described above, when the downward force F acts on the lens unit 31 or the makeup cover 22, the external force F is applied to the drooping wall 42 of the lens holder 40. Through 60 is received from the base. In addition, even when the external force F acts and the lens 31 or the makeup cover 22 is bent, the distance s1 between the upper surface of the base plate 52 and the lower end of the vertical wall 43 of the lens holder 40 is equal to the upper end of the third rib wall 62. The vertical wall 43 of the lens holder 40 makes contact with the base plate 52 because it is larger than the distance s2 between the lower end of the first rib wall 44 and the upper end of the fourth rib wall 63 and the lower end of the second rib wall 45 described above. Before, the first rib wall 44 and the second rib wall 45 touch the third rib wall 62 and the fourth rib wall 63. For this reason, the vertical wall 43 does not directly contact the base plate 52 (see Fig. 6). Therefore, even if the lens part 31 or the makeup cover 22 receives the downward external force F, the downward external force F does not act on the base plate 52 through the vertical wall 43. Also, even in the conventional case, since there are no configurations such as the above-mentioned drooping wall 42 and the first to fourth rib walls 44, 45, 63 and 64, the external force F below the lens portion 31 and the makeup cover 22 If this acts, the vertical wall 43 abuts on the base plate 52, resulting in a problem that the base plate 52 is damaged. However, according to this embodiment, this problem is solved.

In the above embodiment, since the amount of released air is smaller than the amount of reflux air, the ozone generator is not installed on the downstream side of the discharge air filter 15. However, the ozone generator is disposed on the downstream side of the discharge air filter 15 in order to enhance the disinfection effect. You can also install

According to the present invention, since the filter is provided in the air flow path from the commutator motor to the exhaust port, carbon powder generated by operating the commutator motor is collected by the filter. Therefore, the range which is contaminated with carbon powder in a cleaning main body can be narrowed. In addition, since carbon powder is not contained in the exhaust flow from the cleaning body, the carbon powder is clean in the room without being emitted. In addition, various fungi attached to the filter on the downstream side of the commutator motor are sterilized by ozone generation from an ozone generator disposed in the vicinity of the filter on the downstream side of the filter. That is, the ozone generator is operated for a predetermined time after the cleaning operation is stopped, so that ozone is supplied from the ozone generator to the filter during this time, and the sterilization of the filter proceeds. In addition, since no carbon powder or dust adheres to the ozone generator, there is no fear of a short circuit accident occurring at the electrode of the ozone generator to which a high voltage is applied. In addition, if an ozone generator is attached upstream of the filter, ozone can always be supplied to the filter during the cleaner operation, and it can always be disinfected. However, there is a fear that carbon powder may be attached to the electrode of the ozone generator and short-circuited from the commutator motor, resulting in an accident of smoke and fire.

In addition, in the case where the present invention is applied to an exhaust reflux vacuum cleaner, when the ozone generator is installed in the air flow path from the reflux air filter to the reflux exhaust port, the reflux air is sterilized. There is no fear of bacteria sticking. In addition, since the filter for reflux air for the reflux air, which occupies most of the exhaust gas, is sterilized, the bactericidal effect can be efficiently increased in this ozone generator. In addition, since refluxed air having a large amount of air is disinfected compared to the discharged air amount, propagation of various bacteria can be efficiently suppressed.

In addition, in the case where the present invention is applied to an exhaust reflux vacuum cleaner, an ozone generator is provided in each of the air flow path from the reflux air filter to the reflux exhaust port and the air flow path from the discharge air filter to the discharge exhaust port. Since the reflux air is sterilized, there is no fear that the bacteria adhere to the cleaning floor surface by the reflux air. In addition, since the discharge air is sterilized, there is no fear of dispersing bacteria in the room through the discharge air.

Claims (3)

Hose port for connecting the connection hose installed at the front end of the vacuum cleaner body, Exhaust port installed in the cleaning main body, Rectifier motor for blower installed in the cleaning main body, Filter installed in the air flow path from the commutator motor to the exhaust port, and exhaust from the filter And an ozone generator installed in the air passage of the furnace, and installed near the filter, the ozone generator being controlled to operate for a predetermined time after the blower is stopped. The method of claim 1, The vacuum cleaner is an exhaust reflux vacuum cleaner, and the exhaust port is separately formed as a reflux vent for returning air to the hose connection port, and an exhaust vent for discharging air into the room. The filter includes a filter for reflux air. And an ozone generator disposed at least in an air flow path from the reflux air filter to the reflux exhaust port. The method of claim 1, The vacuum cleaner is an exhaust reflux vacuum cleaner, and the exhaust port is separated into a reflux exhaust device for returning air to the hose connection port and a discharge exhaust device for discharging air into the room, and the filter is discharged from the filter for reflux air. The ozone generator is separated and formed as an air filter, and the ozone generator is disposed in the air flow path from the reflux air filter to the reflux exhaust port and in the air flow path from the discharge air filter to the exhaust port for discharge. .