KR200494487Y1 - Robot cleaner using circulating air - Google Patents

Abstract

The present invention relates to a robot vacuum cleaner using circulating air, and more particularly, a body part, a dust box mounted on the body part, including a dust suction part and an air exhaust part, and formed in the body part, the dust box An air supply unit for introducing air into the dust suction unit, an exhaust unit formed on the main body and discharging air from an air discharge unit of the dust box, and disposed between the exhaust unit and the air supply unit, the dust using rotation It may include a brush unit for collecting dust. The present invention has the effect of reducing the odor generated while exhausting the air from the robot vacuum cleaner, can sterilize every corner of the house with convection-type quarantine, and makes it easy for the general public to clean and sterilize, making it easy for life quarantine. accessibility can be provided.

Description

Robot cleaner using circulating air

The present invention relates to a robot vacuum cleaner using circulating air, and more specifically, it can be used to suck dust into the robot cleaner without consuming the discharged air as it collects dust while sucking the air discharged during the cleaning process again. It is related to a robot vacuum cleaner using circulating air.

Conventional robot cleaners have focused on the development of motions to detect surrounding objects and move along an efficient movement path. However, in the case of robot vacuum cleaners, they are usually operated indoors and are generally designed to be small in size because they perform cleaning while moving in a narrow space. However, due to this size limitation, a low-capacity battery is mounted and most of the products do not perform a high-performance cleaning operation because they are composed of small parts. Therefore, the conventional robot vacuum cleaner has a significant disadvantage in that it is not faithful to its original operation of cleaning, despite being a vacuum cleaner. Therefore, in the conventional robot vacuum cleaner, there is a technical task to improve the performance of the cleaning operation in addition to the efficient route search for the movement route.

In order to solve this problem, the cleaning efficiency can be maximized if the most efficient structure for cleaning is devised without wasting energy generated in the cleaning process without new development of new micro-parts. In particular, the conventional robot vacuum cleaner sucks air together and in the process of being sucked in, it has a structure in which the dust is collected and the air is discharged out again. However, the discharged air is air filtered by dust through the dust filter, and may be a factor that can be reused from the viewpoint of energy efficiency. Nevertheless, the conventional robot vacuum cleaner discharges the air once sucked out as it is, and the air discharged to the outside becomes a factor causing discomfort to the surroundings.

Therefore, if the discharged air is recycled again in the cleaning process, it will be possible to increase the efficiency of the robot cleaner device without causing pollution to the surroundings, but a method or structure for recycling the air discharged from the conventional robot cleaner again, Nothing is implied or disclosed.

Accordingly, there is a need to develop a robot cleaner capable of maximizing cleaning efficiency while utilizing the air discharged through structural change without the development of special parts.

Unexamined Patent Publication No. 10-2019-0104505 (published on September 10, 2019)

An object of the present invention is to provide a robot cleaner using circulating air having a structure that can collect dust while re-suctioning air discharged during a cleaning process.

Another technical problem to be solved through an embodiment of the present invention is to provide a robot cleaner using circulating air that can be used to suck dust into the robot cleaner without consuming the discharged air.

Another technical problem to be solved through an embodiment of the present invention is to provide a robot cleaner using circulating air capable of collecting dust into a dust box using circulating air and discharging a vaporized sterilizing solution while moving am.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above technical problem, a robot cleaner using circulating air according to an embodiment of the present invention has a main body, a dust box mounted on the main body, and a dust inlet and an air outlet, formed in the main body and an air supply unit for introducing air into the dust suction unit of the dust box, an exhaust unit formed on the main body portion and discharging air from the air discharge unit of the dust box, and disposed between the exhaust unit and the air supply unit, , it may include a brush unit for collecting dust using rotation.

In one embodiment, the exhaust unit is opened by tilting toward the rear of the main body to discharge air in a direction in which the air supply is located from the front to the rear of the main body, and the air supply unit includes the air discharged from the exhaust unit. It may be opened by tilting toward the front of the main body to suck in.

In an embodiment, it may further include a guide part disposed between the brush part and the air supply part and collecting dust collected by the brush part and the air discharged from the exhaust part to the air supply part.

In an embodiment, the air discharge unit of the dust box may be located at a height corresponding to a suction stopper that blocks air sucked from the dust suction unit of the dust box.

In one embodiment, the motor unit may further include a motor connected to the exhaust unit to suck air discharged from the air discharge unit of the dust box and discharge the sucked air through the exhaust unit.

In one embodiment, the motor unit, a suction fan for sucking air, an exhaust fan for discharging air, a suction gear for rotating the suction fan, an exhaust gear for rotating the exhaust fan, is coupled to the motor and rotates, the suction A first motor gear engaged with a gear to operate the suction gear, and a second motor gear coupled to the motor to rotate and mesh with the exhaust gear to operate the exhaust gear, wherein the exhaust gear and the second motor The gear ratio of the gear may be a gear ratio that rotates at a higher speed than that of the suction gear and the first motor gear.

In one embodiment, the motor unit includes a first hole into which the shaft of the intake gear and the shaft of the exhaust gear are inserted, two second holes formed adjacent to the first hole, and two semicircular air passages Doedoe coupled to the motor case is formed, it can be inserted into any one of the second hole of the two second holes.

In another embodiment, it may further include a storage tank mounted on the main body and storing the sterilizing liquid, and a mist box into which the sterilizing liquid stored in the storage tank is put, and vaporizing the sterilizing liquid and discharging to the outside.

In another embodiment, the storage tank may include a pressure adjusting unit for introducing air from the outside when the sterilizing liquid is introduced into the mist box and the air pressure therein is lowered.

In one embodiment, the storage tank and the mist box may include a high level sensor that measures the capacity of the sterilizing solution while floating by buoyancy according to the height of the sterilizing solution.

Since the robot cleaner using circulating air according to an embodiment of the present invention circulates air and suppresses the air being discharged to the outside of the robot cleaner, it is possible to reduce odors generated while discharging air from the robot cleaner.

The robot cleaner using circulating air according to an embodiment of the present invention can collect dust together with the air by re-suctioning it without consuming the air discharged during the cleaning process.

Since the robot cleaner using circulating air according to an embodiment of the present invention collects dust by using the discharged air, there is an effect that high cleaning efficiency can be achieved even with low power.

The robot cleaner using circulating air according to an embodiment of the present invention can efficiently clean the dust and air on the floor at the same time by collecting dust into the dust box using circulating air and discharging the vaporized sterilizing solution at the same time, Accordingly, there is an advantage in that the position where the robot vacuum cleaner passes can be made comfortable.

The robot vacuum cleaner using circulating air according to an embodiment of the present invention can sterilize every corner of the house by convection-type quarantine, and it can provide easy access to life prevention by allowing the general public to easily clean and sterilize. There are advantages.

1 is a side cross-sectional view of a robot cleaner according to an embodiment of the present invention.
2 is a bottom view of a robot cleaner according to an embodiment of the present invention.
3 is a top view of a robot cleaner according to an embodiment of the present invention.
4 is a side cross-sectional view of a motor of a robot cleaner according to an embodiment of the present invention.
5 is a perspective view of a motor case of a robot cleaner according to an embodiment of the present invention.
6 is a front view of a motor case of a robot cleaner according to an embodiment of the present invention.
7 is a side view of a dust box mounted on a robot cleaner according to an embodiment of the present invention.
8 is a side view of a storage tank mounted on a robot cleaner according to an embodiment of the present invention.
9 is a side view of a mist box mounted on a robot cleaner according to an embodiment of the present invention.
10 is a view showing the structure of the nozzle coupled to the mist box.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the technical idea of the present invention is not limited to the following embodiments, but may be implemented in various different forms, and only the following embodiments complete the technical idea of the present invention, and in the technical field to which the present invention belongs It is provided to fully inform those of ordinary skill in the scope of the present invention, and the technical spirit of the present invention is only defined by the scope of the claims.

In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When a component is described as being “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It should be understood that elements may be “connected,” “coupled,” or “connected.”

As used herein, “comprises” and/or “comprising” refers to a referenced component, step, operation and/or element of one or more other components, steps, operations and/or elements. The presence or addition is not excluded.

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

1 is a side cross-sectional view of a robot cleaner according to an embodiment of the present invention.

Referring to FIG. 1 , a robot cleaner 1000 using circulating air according to an embodiment of the present invention may include a main body 100 , a dust box 200 , a storage tank 300 and a mist box 400 . can First, the components will be briefly described, and then detailed structures and functions of each component will be described.

The body unit 100 includes a power button 101 , a control dial 102 , a sensor 103 , a substrate 104 , a charging terminal 105 , a moving means 106 , a power supply unit 107 , and a brush unit 108 . ), a brush motor 109, an exhaust unit 110, an air supply unit 112, a sterilizing liquid pump 113, a blower 114, and a blow filter 115, including a dust box 200, a storage tank ( 300) and the mist box 400 may be mounted. The main body 100 may move the position of the robot cleaner 1000 by using the moving means 106 and collect dust using the brush 108 .

The power button 101 and the control dial 102 are provided in front of the robot cleaner 1000 and can be manipulated by the user. The sensor 103 may detect a surrounding object to detect a shape of a space and prevent a collision. The board 104 is electrically connected to the parts for the operation of the robot cleaner, and the charging terminal 105 is a terminal that receives power from the outside, and is a sterilizing solution operation charging terminal 105 and a vacuum cleaner operation charging terminal 105 . can be distinguished. The charging terminal 105 may stop the mist function during charging. The brush unit 108 may collect dust on the floor while rotating by the brush motor 109 coupled to the body. The exhaust unit 110 discharges air in the direction of the brush unit 108 , and the air supply unit 112 may suck in the discharged air and dust. In this case, the exhaust unit 110 may discharge air in the direction of the brush unit 108 or the air supply unit 112 . The sterilizing liquid pump 113 may smoothly discharge the sterilizing liquid stored in the storage tank 300 to the mist box 400 . The blower 114 may discharge the sterilizing liquid vaporized in the mist box 400 to the outside through the blowing filter 115 .

The dust box 200 may store the dust sucked together with the air and discharge the air. The dust box 200 may suck in dust together with air through the dust suction unit 201 and then discharge the air through the air discharge unit 203 . That is, the inhaled dust is stored in the dust box 200 , but the air may be discharged again without being stored in the dust box 200 . As will be described later, the air sucked into the dust box 200 is circulated through the exhaust unit 110 and the air supply unit 112 to help suction of the dust.

The storage tank 300 may be mounted on the main body 100 to store the sterilizing solution. The storage tank 300 may supply the stored sterilizing solution to the mist box 400 . The storage tank 300 may be located at the rear side of the main body 100 . The sterilizing liquid is a substance that purifies the air and may be made of a liquid containing a sterilizing component, for example, HOCL (non-acidic hypochlorous acid).

The mist box 400 may be mounted on the main body 100 to receive the sterilizing solution stored in the storage tank 300 . The mist box 400 is preferably located at a position adjacent to the storage tank 300 so as to easily receive the sterilizing solution from the storage tank 300 . The mist box 400 may vaporize the sterilizing liquid and discharge it to the outside.

The robot cleaner 1000 may collect dust while moving it, store it in the dust box 200 , and discharge the sterilizing solution vaporized in the mist box 400 to purify the outside air.

In FIG. 1 , the configuration of the robot cleaner 1000 may be disposed in the order of the dust box 200 , the storage tank 300 , and the mist box 400 from the front to the rear of the main body, but this is exemplary and according to the embodiment It may be arranged in various forms.

Hereinafter, the organic operation of the main body 100 and the dust box 200 for cleaning will be mainly described.

The exhaust part 110 and the air supply part 112 may be formed on the bottom surface of the body part 100 . The exhaust unit 110 may be a passage through which the air discharged from the dust box 200 is formed in the body unit 100 . In an embodiment, the exhaust unit 110 may be a passage formed on the bottom surface of the main body 100 in a left and right direction with respect to the moving direction of the robot cleaner 1000 .

The air supply unit 112 may be a passage through which air is sucked into the dust box 200 . In one embodiment, the air supply unit 112 may be a passage formed on the bottom surface of the main body part 100 in the left and right directions with respect to the moving direction of the robot cleaner 1000 .

The robot cleaner 1000 may collect dust while the brush unit 108 coupled to the bottom surface of the main body 100 rotates. In this case, the exhaust unit 110 may be disposed in front of the body, the brush may be disposed behind it, and the air supply unit 112 may be disposed behind the brush. That is, on the bottom surface of the main body of the robot cleaner 1000 , the exhaust unit 110 , the brush unit 108 , and the air supply unit 112 may be disposed in the order from the front to the rear.

A motor unit 111 for sucking and discharging air so that air is discharged from the air discharge unit 203 of the dust box 200 may be installed inside the exhaust unit 110 . The exhaust unit 110 may forcibly discharge air from the air discharge unit 203 of the dust box 200 through the motor unit 111 , and discharge the discharged air to the bottom of the robot cleaner 1000 . If the form in which the air is discharged is expressed differently based on the motor 111 , the motor 111 may suck the air discharged from the dust box 200 and discharge the air toward the exhaust unit 110 .

The motor unit 111 may be formed of a suction motor or a suction motor that sucks and discharges air. As the robot cleaner 1000 according to an embodiment of the present invention uses a suction motor or a motor unit 111 including a suction motor for sucking and discharging air, the robot cleaner 1000 uses only one motor to suck air containing dust. And, there is an effect of discharging the air from which the dust has been removed.

At this time, the exhaust unit 110 is inclined to discharge air while going to the rear of the bottom surface of the body unit 100 in the direction in which the air supply unit 112 is located from the front to the rear of the body unit 100 to discharge the bottom surface of the body unit 100 . can be opened toward

The air supply unit 112 may suck together the air discharged from the exhaust unit 110 and the dust collected by the brush unit 108 . The air supply unit 112 may inject air and dust into the dust suction unit 201 of the dust box 200 . The air supply unit 112 may be opened by tilting to suck the air from the front of the bottom surface of the main body 100 toward the front of the main body 100 to suck the air discharged from the exhaust unit 110 to the rear.

The dust introduced through the dust suction unit 201 may be filtered by the sieve 204 and the sea wave filter 205 , and the filtered dust may be stored in the dust box 200 . The air introduced through the dust suction unit 201 is discharged through the air discharge unit 203 , and in this case, the air may be smoothly discharged toward the exhaust unit 110 by the suction force of the motor 1111 .

As the robot cleaner 1000 using circulating air according to an embodiment of the present invention discharges air through the exhaust unit 110 and puts it into the air supply unit 112 , the dust collected in the brush unit 108 is dusted. It can be easily put into the box 200, and the air discharged while circulating the air can be recycled.

In addition, the robot cleaner 1000 using circulating air has an advantage in that the cleaning efficiency can be increased by reusing the air discharged in the process of collecting dust without meaninglessly consuming it. In addition, as the robot cleaner 1000 circulates and reuses air, there is an effect of suppressing a dust odor caused by air leaking to the outside, including some dust.

Hereinafter, the storage tank 300 and the mist box 400, which are components for discharging the vaporized sterilizing liquid to the outside, will be described.

The storage tank 300 is provided with a water level sensor 302 therein to measure the capacity of the sterilizing solution stored in the storage tank 300 . A water level sensor 404 is also provided inside the mist box 400 to measure the capacity of the sterilizing solution supplied to the mist box 400 . The storage tank 300 stores the sterilizing liquid, and when the sterilizing liquid is depleted in the mist box 400 , the sterilizing liquid may be supplied to the mist box 400 . The storage tank 300 may maintain the pressure by introducing air from the outside through the air hole formed in the lid 303 when the air pressure inside the storage tank 300 is reduced while the sterilizing solution is reduced.

The check valve 401 may be installed at an inlet through which the sterilizing solution is introduced from the storage tank 300 . The check valve 401 may supply or block the supply of the sterilizing solution stored in the storage tank 300 while being opened or closed. The check valve 401 may serve as a one-way valve to prevent the sterilizing liquid from flowing in only one direction and not flowing in the opposite direction. The check valve 401 is interlocked with the water level sensor 404 of the mist box 400, and when it is determined that the sterilizing liquid is insufficient in the water level sensor 404, the check valve 401 opens a passage to inject the sterilizing liquid, The open passage can be closed by measuring the amount of sterilizing solution used and adding an appropriate amount. At this time, the sterilizing liquid pump 113 may discharge the sterilizing liquid stored in the storage tank 300 to be introduced into the mist box 400 . The sterilizing liquid pump 113 is interlocked with the check valve 401 and the water level sensor 404, and when it is determined that the sterilizing liquid is insufficient in the water level sensor 404, a signal indicating that the sterilizing liquid is discharged while pumping is performed by the check valve 401 can be passed to

The ultrasonic vibrator 402 may vibrate the sterilizing liquid with ultrasonic waves to vaporize it. The nozzle 403 may discharge the sterilizing liquid vaporized by the ultrasonic vibrator 402 to the outside. In addition, the vaporized sterilizing liquid is discharged through the air outlet, and can be more easily discharged to the outside by the blower 114 coupled to the main body.

The structures of the dust box 200 , the storage tank 300 , and the mist box 400 will be described later by supplementing FIGS. 7 to 9 , and the components included in the main body 100 will be summarized and described below.

Since the robot cleaner using circulating air according to an embodiment of the present invention circulates air and suppresses the air being discharged to the outside of the robot cleaner, it is possible to reduce odors generated while discharging air from the robot cleaner.

Hereinafter, the structure of the bottom surface and the top surface of the robot cleaner 1000 will be described with reference to FIGS. 2 and 3 .

2 is a bottom view of the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 2 , the robot cleaner 1000 includes a sterilization operation charging terminal 1051 , a vacuum cleaner operation charging terminal 1052 , a mist stop sensor 1053 , a moving means 106 , and a power source on the bottom surface of the robot cleaner 1000 . A supply unit 107 , a brush unit 108 , an exhaust unit 110 , an air supply unit 112 , and a guide unit 116 may be provided.

The exhaust unit 110 may be a passage formed on the bottom surface of the main body 100 to be elongated in the left and right directions based on the moving direction of the robot cleaner 1000 . Although not shown in the drawings, the exhaust unit 110 may have a shape in which the width of the passage formed long in the left and right direction becomes narrower as it rises from the bottom surface of the main body 100 to the high surface.

The air supply part 112 may be a passage formed on the bottom surface of the main body part 100 in a left and right direction with respect to the moving direction of the robot cleaner 1000 . Although not shown in the drawings, the air supply unit 112 may have a shape in which the width of the passage length formed in the left and right direction gradually becomes narrower as it rises from the bottom surface of the body part 100 to the high surface.

As described above, the robot cleaner 1000 according to the present embodiment has a shape in which the exhaust unit 110 and the air supply unit 112 increase from the bottom surface of the main body 100 to the high surface and narrow in width, so that the dust is sucked. It is possible to easily inhale and discharge air while maximizing the area of the configuration.

The mist stop sensor 1053 may detect a charging operation to stop the sterilization operation during charging to stop the mist function. The sterilization operation charging terminal 1051 charges the battery for supplying power to the mist box 400 , and the vacuum cleaner operation charging terminal 1052 powers the brush unit 108 , the motor unit 111 of the robot cleaner 1000 , and the like. It can charge the battery that supplies it.

The brush unit 108 may collect dust while the brush-shaped brush rotates. Specifically, the brush unit 108 may be composed of a brush frame 1081 and a brush 1082, the brush 1082 is coupled toward the lower side of the brush frame 1081, and the brush 1082 is rotated through the dust can be collected.

The guide part 116 may be disposed between the brush part 108 and the air supply part 112 . The guide part 116 may be formed of two guide parts, one on the left and right in the moving direction of the robot cleaner 1000 on the bottom surface of the main body part 100 . The guide part 116 may be formed in the form of a blocking wall that is narrowed in width from the front to the rear of the main body 100 , and may be made of a material such as a nonwoven fabric or plastic, but the shape and material are not limited thereto. In the guide part 116, the width of the inlet side where the air is collected is wider than the width of the outlet side for concentrating the air into the air supply unit 112, and the width of the outlet side is the same as or almost equal to the width of the air supply unit 112. may be of the same width.

The guide unit 116 may guide the dust collected in the brush unit 108 to easily enter the air supply unit 112 . The guide unit 116 may prevent the air discharged from the exhaust unit 110 from leaking to the side of the robot cleaner 1000 . That is, the guide unit 116 may guide the dust collected by the brush unit 108 to the air supply unit 112 so that both the dust collected by the brush unit 108 and the air discharged from the exhaust unit 110 are introduced.

Since the robot cleaner 1000 using circulating air according to an embodiment of the present invention collects air from the guide part 116 to the air supply part 112 , air and dust can be efficiently sucked and the exhaust part 110 . ) can be completely recycled.

3 is a top view of the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 3 , the robot cleaner 1000 includes a power button 101 , a sensor 103 , a display 116 , a selection mode dial 1021 , a spray amount adjustment dial 1022 on the upper surface of the robot cleaner 1000 , A cover 206 and a nozzle may be provided.

The power button 101 may be configured as an interface of a push-type or electronic button, and the sensor 103 may identify a surrounding object and detect a structure of a space to prevent a collision. The display may output the status of the robot cleaner 1000 and various information. The selection mode dial 1021 may change information on settings and operations of the robot cleaner 1000 displayed on the display through a rotation operation. The spray amount control dial 1022 can adjust the amount of the sterilizing solution discharged from the mist box 400 through a rotation operation. The cover 206 may cover the dust box 200 and may have a structure that is opened when a button is pressed.

The overall components of the robot cleaner 1000 according to an embodiment of the present invention have been described so far, and the structure and function of the motor 1111 installed in the robot cleaner 1000 will be described below.

4 is a side cross-sectional view of the motor 1111 of the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 4 , the motor unit 111 includes a motor 1111 , a first motor gear 1112 , a second motor gear 1113 , a suction gear 1114 , an exhaust gear 1116 , and a suction fan 1115 . , may include an exhaust fan 1117 .

The motor 1111 may rotate the first motor gear 1112 and the second motor gear 1113 through rotation. The first motor gear 1112 may be engaged with the suction gear 1114 to operate the suction gear 1114 . Since the suction gear 1114 is coupled to the suction fan 1115 , when the suction gear 1114 rotates, the suction fan 1115 may also rotate. The second motor gear 1113 may be engaged with the exhaust gear 1116 to operate the exhaust gear 1116 . Since the exhaust gear 1116 is coupled to the exhaust fan 1117, when the exhaust gear 1116 rotates, the exhaust fan 1117 may also rotate. The motor 1111 may suck in air by the rotation of the suction fan 1115 and discharge the air by the rotation of the exhaust fan 1117 .

In this case, the gear ratio between the exhaust gear 1116 and the second motor gear 1113 may be a gear ratio that rotates at a higher speed than the gear ratio between the intake gear 1114 and the first motor gear 1112 . That is, the gear ratio of the exhaust gear 1116 and the second motor gear 1113 is different from the gear ratio of the intake gear 1114 and the first motor gear 1112 so that the suction fan 1115 and the exhaust fan 1117 are configured. can rotate at different rotational speeds. In one embodiment, the gear ratio of the intake gear 1114 and the first motor gear 1112 is made in a ratio of 1:1, and the gear ratio of the exhaust gear 1116 and the second motor gear 1113 is 1:2 ( or 1:1.5, or 1:1.25, etc.). When the gear ratio between the intake gear 1114 and the first motor gear 1112 is 1:1 and the gear ratio between the exhaust gear 1116 and the second motor gear 1113 is 1:2, the first When the motor gear 1112 rotates one turn, the suction gear 1114 may also rotate one turn. At this time, when the first motor gear 1112 rotates one turn, the second motor gear 1113 also rotates one turn, but the exhaust gear 1116 formed of a gear having a smaller size may rotate two turns. Accordingly, the exhaust fan 1117 can rotate faster than the suction fan 1115, and the air pressure difference between the exhaust fan 1117 side and the suction fan 1115 side is formed by the mechanical motion of the air, so that the exhaust fan ( 1117) can discharge the air more quickly. In addition, since the speed at which the air is discharged is higher than the speed at which the air is sucked in, the motor unit 111 can be discharged quickly without accumulating air therein. (111) has the effect of cooling itself.

The motor unit 111 is installed in the inner passage of the exhaust unit 110 to suck the air discharged from the air discharge unit 203 of the dust box 200 and discharge the sucked air through the exhaust unit 110 . can

5 is a perspective view of a motor 1111 case of the robot cleaner 1000 according to an embodiment of the present invention, and FIG. 6 is a front view of the motor case 1119 of the robot cleaner 1000 according to an embodiment of the present invention. am.

Referring to FIG. 5 , the motor case 1119 is formed in the form of a circular column and may be coupled to the motor unit 111 .

Specifically, the motor case 1119 may have a circular column shape with a first hole H1 open in the center, and two second holes H2 on both sides of the first hole H1 . The first hole (H1) may be the shaft of the intake gear 1114 and the shaft of the exhaust gear 1116 are inserted, the second hole (H2) is two open spaces formed adjacent to the first hole (H1) have. The air passages 1119_1 and 1119_2 may be two semicircular open spaces.

The motor unit 111 may be inserted into only one second hole H2 among the two second holes H2 . At this time, the remaining second hole H2 into which the motor unit 111 is not inserted serves as an air passage and may serve to cool the heat generated by the motor unit 111 . In addition, the motor case 1119 may have semicircular air passages 1119_1 and 1119_2 formed therein to cool the heat generated in the motor unit 111 while air passes through the air passages 1119_1 and 1119_2 .

6 , the first hole H1 is opened at the center of the motor case 1119 so that the shaft of the intake gear 1114 and the shaft of the exhaust gear 1116 can be inserted. The shaft inserted into the first hole H1 may be coupled to the exhaust gear 1116 and the suction gear 1114 to match the end of the motor case 1119 .

The second hole H2 may be inserted into the motor 1111 . The motor 1111 inserted into the second hole H2 may be coupled to the first motor gear 1112 and the second motor gear 1113 according to the end of the motor case 1119 .

The motor case 1119 may not only protect the motor 1111 and the shaft, but also provide a passage through which the air may be well sucked through the second hole H2 into which the motor 1111 is not inserted.

7 is a side view of the dust box 200 mounted on the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 7 , the dust box 200 may include a dust suction unit 201 , a suction stopper 202 , an air discharge unit 203 , a strainer 204 , a sea wave filter 205 and a cover 206 . can

The dust suction unit 201 may be connected to the air supply unit 112 of the main body 100 to suck air and dust. The suction stopper 202 may be opened when air is sucked by the driving of the motor unit 111 . At this time, the suction stopper 202 may be opened in the form of a hinge, and then, when the motor unit 111 is stopped, the suction stopper 202 may be closed. Air is discharged to the air discharge unit 203 by the motor 1111. At this time, large particles of dust are filtered through the sieve 204 seated in the air discharge unit 203, and small particles of dust are released by sea waves. Filter 205 may be filtered.

8 is a side view of the storage tank 300 mounted on the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 8 , the storage tank 300 may include a sterilizing solution discharge unit 301 , a high level sensor 302 , a lid 303 , a hole 304 , and a spring unit 305 .

The storage tank 300 may store the sterilizing liquid and discharge the sterilizing liquid to the sterilizing liquid discharge unit 301 by the pumping operation of the sterilizing liquid pump 113 . The high water level sensor 302 may be made of a magnetic high level sensor that is an annular magnet coupled with a buoyancy device. The high water level sensor 302 can detect the capacity of the sterilizing solution according to the height of the annular magnet when the annular magnet to which the buoyancy device is coupled floats by buoyancy according to the height of the sterilizing solution. The high water level sensor 302 may determine the high water level when the magnetic body and the buoyancy device simultaneously touch the upper end of the high water level sensor 302 , and measure the capacity of the sterilizing solution according to the height of the magnetic body and the buoyancy device. Specifically, when the high level sensor 302 has a sterilizing solution inside the storage tank 300, the annular magnet coupled with the buoyancy device rises by buoyancy, and the high level sensor 302 has an annular shape coupled with the buoyancy device. The water level is sensed according to the degree to which the magnet rises, and when it rises to the maximum value, a high level signal can be generated.

The high water level sensor 302 may measure the capacity of the sterilizing liquid and transmit information on the capacity of the sterilizing liquid to the main body 100 to be output on the display of the main body 100 .

The lid 303 may cover the inlet of the storage tank 300 , and the lid 303 may include a hole 304 and a spring part 305 . The hole 304 is an open space to the outside, and air may be introduced thereinto. At this time, the inner space of the hole 304 may be filled with a filter. The spring part 305 may be opened to the outside while moving inside the storage tank 300 using elasticity when the pressure inside the storage tank 300 is reduced while the sterilizing solution is reduced. When the pressure inside the storage tank 300 is appropriately adjusted, the spring unit 305 may be returned to its original position using elasticity to block the open area. As the hole 304 and the spring part 305 are formed in the storage tank 300, even if the internal pressure is changed by the sterilizing solution, an appropriate pressure can be maintained.

9 is a side view of the mist box 400 mounted on the robot cleaner 1000 according to an embodiment of the present invention.

Referring to FIG. 9 , the mist box 400 may include a check valve 401 , an ultrasonic vibrator 402 , a nozzle 403 , a high water level sensor 404 , and an air outlet 405 .

The check valve 401 is connected to the sterilizing liquid pump 113 of the body and can be opened only when the mist box 400 needs to be supplied with the sterilizing liquid. The check valve 401 may be a valve that allows the fluid to flow in one direction, but automatically closes in the reverse direction to prevent flow. That is, when the sterilizing liquid pump 113 actively supplies the sterilizing liquid and the sterilizing liquid pump 113 supplies the sterilizing liquid through a pumping operation, the check valve 401 is opened, and the sterilizing liquid is transferred from the storage tank 300 to the mist box. (400) will flow.

The check valve 401 is closed when the sterilizing liquid pump 113 does not supply the sterilizing liquid. The check valve 401 blocks the sterilizing liquid from flowing from the storage tank 300 to the mist box 400, and vice versa. It is also possible to prevent the sterilizing liquid from flowing from the mist bals 400 to the storage tank 300 .

The ultrasonic vibrator 402 may vaporize the sterilizing solution using ultrasonic waves. The nozzle 403 may discharge the generated mist by vaporizing the sterilizing liquid to the outside. The high water level sensor 404 installed in the mist box 400 may have the same structure and function as the high water level sensor 302 installed in the storage tank 300 . The high water level sensor 404 may be made of a magnetic high level sensor that is an annular magnet coupled with a buoyancy device. The high water level sensor 404 can detect the capacity of the sterilizing solution according to the height of the annular magnet when the annular magnet to which the buoyancy device is coupled floats by buoyancy according to the height of the sterilizing solution. The high water level sensor 404 may determine the high water level when the magnetic body and the buoyancy device simultaneously touch the upper end of the high water level sensor 404 , and measure the capacity of the sterilizing solution according to the height of the magnetic body and the buoyancy device. Specifically, the high water level sensor 404 has a sterilizing solution inside the mist box 400, the annular magnet coupled with the buoyancy device rises by buoyancy, and the high level sensor 404 has an annular shape coupled with the buoyancy device. The water level is sensed according to the degree to which the magnet rises, and when it rises to the maximum value, a high level signal can be generated.

The high water level sensor 404 detects that the mist box 400 lacks sterilizing liquid and sends a signal to the main body 100, and the sterilizing liquid pump 113 of the main body 100 pumps the storage tank ( The sterilizing liquid stored in 300 is supplied to the mist box 400 , and the check valve 401 is opened according to this timing to supply the sterilizing liquid to the mist box 400 .

The air outlet 405 can discharge the vaporized sterilizing liquid to the outside, and the mist can be discharged more smoothly by the wind of the blower 114 installed in the body.

10 is a view showing the structure of the nozzle 403 coupled to the mist box (400).

Referring to FIG. 10 , the nozzle 403 may include a diffusion portion 4031 , a stopper portion 4032 , and an extension portion 4033 . The nozzle 403 may be installed on the upper surface of the rear of the main body 100 . The diffusion unit 4031 may be formed in a funnel shape so that the mist is diffused. The stopper 4032 can spread the mist rising vertically so that the mist is spread over a wide horizontal range. The extension part 4033 may connect the diffusion part 4031 and the mist box 400 to adjust the height at which the mist is discharged.

The robot cleaner 1000 according to an embodiment of the present invention collects most of the dust collected without the dust escaping to the outside using circulating air to the dust box 200, and discharging the vaporized sterilizing solution while moving, It is possible to efficiently clean the dust and air on the floor at the same time, and accordingly, there is an advantage in that the position where the robot cleaner 1000 passes can be made comfortable.

So far, various embodiments of the present invention and effects according to the embodiments have been described with reference to FIGS. 1 to 10 . Effects according to the technical idea of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

Although embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be implemented in other specific forms without changing its technical spirit or essential features. can understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1000: robot vacuum cleaner 100: body part
101: power button 102: control dial
103: sensor 104: substrate
105: charging terminal 106: moving means
107: power supply unit 108: brush unit
109: brush motor 110: exhaust
111: motor unit 112: air supply unit
113: sterilizing liquid pump 114: blower
115: blow filter 200: dust box
201: dust suction part 202: suction stopper
203: air outlet 204: sieve
205: sea wave filter 206: cover
300: storage tank 301: sterilizing solution discharge part
302: high water level sensor 303: lid
304: hole 305: spring part
400: mist box 401: check valve
402: ultrasonic vibrator 403: nozzle
404: high water level sensor 405: air outlet

Claims (10)

body part;
a dust box mounted on the main body and including a dust suction unit and an air discharge unit;
an air supply unit formed in the main body and supplying air into the dust suction unit of the dust box;
an exhaust part formed in the main body part for discharging air from the air exhaust part of the dust box; and
It is disposed between the exhaust part and the air supply part, characterized in that it comprises a brush part for collecting dust using rotation,
a storage tank mounted on the main body and storing a sterilizing solution; and
and a mist box to which the sterilizing liquid stored in the storage tank is put, and for vaporizing the sterilizing liquid and discharging to the outside,
The storage tank is
It characterized in that it includes a pressure control unit for introducing air from the outside when the sterilizing liquid is introduced into the mist box and the internal pressure is lowered,
Robot vacuum cleaner using circulating air. According to claim 1,
The exhaust portion is opened by tilting toward the rear of the main body to discharge air in a direction in which the air supply is located from the front to the rear of the main body,
The air supply part, characterized in that it is opened by tilting toward the front of the main body part so as to suck the air discharged from the exhaust part,
Robot vacuum cleaner using circulating air. According to claim 1,
It is disposed between the brush part and the air supply part, characterized in that it further comprises a guide part for collecting dust collected by the brush part and the air discharged from the exhaust part to the air supply part,
Robot vacuum cleaner using circulating air. According to claim 1,
The air discharge unit of the dust box is characterized in that it is located at a height corresponding to the suction stopper blocking the air sucked from the dust suction unit of the dust box,
Robot vacuum cleaner using circulating air. According to claim 1,
It characterized in that it further comprises a motor unit connected to the exhaust unit to suck the air discharged from the air discharge unit of the dust box and discharge the sucked air through the exhaust unit,
Robot vacuum cleaner using circulating air. 6. The method of claim 5,
The motor unit,
a suction fan for sucking air;
an exhaust fan for discharging air;
a suction gear rotating the suction fan;
an exhaust gear rotating the exhaust fan;
a first motor gear coupled to the motor to rotate and engage the suction gear to operate the suction gear; and
A second motor gear coupled to the motor to rotate, and to engage the exhaust gear to operate the exhaust gear,
A gear ratio of the exhaust gear and the second motor gear,
characterized in that it consists of a gear ratio rotated at a high speed compared to the gear ratio of the suction gear and the first motor gear,
Robot vacuum cleaner using circulating air. 7. The method of claim 6,
The motor unit,
Doedoe coupled to a motor case having a first hole into which the shaft of the intake gear and the shaft of the exhaust gear are inserted, two second holes formed adjacent to the first hole, and two semicircular air passages,
characterized in that it is inserted into any one of the second holes among the two second holes,
Robot vacuum cleaner using circulating air. delete delete According to claim 1,
The storage tank and the mist box,
Characterized in that it comprises a high level sensor that measures the capacity of the sterilizing solution while floating by buoyancy according to the height of the sterilizing solution,
Robot vacuum cleaner using circulating air.

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