CN117479871A - Dust collection device - Google Patents

Abstract

The dust collecting device of the present application includes: a suction source that generates a suction force for sucking dust and a suction airflow for conveying the dust; a dust storage unit for storing dust conveyed by the suction airflow; an ion generating unit that generates ions; and an ion supply section that generates a supply air flow that supplies ions generated by the ion generation section to the dust storage section with power consumption smaller than that of the suction source.

Description

Dust collection device

Technical field

The present invention relates to a dust collecting device that sucks dust and stores the sucked dust.

Background technique

A suction dust collection device (such as a vacuum cleaner or a recovery device that recovers dust from a vacuum cleaner) has a suction source that generates suction force for sucking dust and generates a suction airflow for transporting dust. The dust collecting device is configured to store dust transported by the suction air flow in a dust storage unit (see Patent Document 1).

In order to remove the static electricity generated in the dust storage part, the dust collecting device of Patent Document 1 further has an ion generating part. The ion generating unit is configured to release ions into the suction airflow, and cause the ions to flow to the dust storage unit riding on the suction airflow, thereby performing a static electricity elimination process on the dust storage unit.

Ions not only have a charge-removing effect but also a deodorizing effect. However, in order to obtain a deodorizing effect on dust in the dust storage section that is acceptable to users, it is necessary to supply ions to the dust storage section for a longer period of time than the cleaning time (for example, about 3 hours). That is, in the vacuum cleaner of Patent Document 1, if the dust in the dust storage part is to be deodorized, the suction source must be operated for a long time in order to supply ions to the dust storage part.

However, the suction source consumes a large amount of electric power because it is configured to generate suction force for sucking dust. Therefore, if the suction source is operated for a long time in order to deodorize the dust in the dust storage unit, the power consumption of the vacuum cleaner will be excessive.

existing technical documents

patent documents

Patent document 1: Japanese Patent Publication No. 2012-75446

Contents of the invention

An object of the present invention is to provide a dust collecting device capable of deodorizing dust while suppressing power consumption.

The dust collecting device of the present invention includes: a suction source that generates suction force for sucking dust and a suction airflow for transporting dust; a dust storage unit that stores dust transported by the suction airflow; and ions. The generating unit generates ions; and the ion supply unit generates a supply air flow that supplies the ions generated by the ion generating unit to the dust storage unit with power consumption smaller than that of the suction source.

The dust collecting device described above can deodorize dust while reducing power consumption.

The objects, features and advantages of the present invention will become clearer from the following detailed description and illustrations in the accompanying drawings.

Description of the drawings

Figure 1 is a cross-sectional view of a vacuum cleaner and a recovery device.

Figure 2 is a front view of the vacuum cleaner.

Fig. 3 is a cross-sectional view of the periphery of the dust chamber of the vacuum cleaner.

Fig. 4 is a perspective view of the dust filter housed in the dust storage chamber.

Fig. 5 is a cross-sectional view of the vacuum cleaner and the recovery device when viewed from above.

Fig. 6 is a front view of the recovery device.

Fig. 7 is a schematic cross-sectional view of a deodorizing treatment unit provided in the recovery device.

Fig. 8 is a schematic diagram of the ion generating unit of the deodorizing treatment unit.

Fig. 9 is a schematic cross-sectional view of the deodorizing treatment unit provided in the recovery device.

Fig. 10 is a schematic cross-sectional view of the deodorizing treatment unit provided in the vacuum cleaner.

Detailed ways

Hereinafter, the embodiments will be described in detail with reference to the drawings. However, in order to facilitate understanding by those skilled in the art, for example, detailed descriptions of well-known matters may be omitted or repeated descriptions of substantially the same components may be omitted. In addition, the drawings and the following description are provided to allow those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the scope of the invention.

As shown in FIG. 1 , the dust collecting device may be configured as a recovery device 200 that recovers dust from the vacuum cleaner 100 .

(The overall structure of the vacuum cleaner)

As shown in FIGS. 1 and 2 , the vacuum cleaner 100 includes: a nozzle 130 for sucking dust; a cleaner body 110 installed at the rear of the nozzle 130 ; and a grip 140 extending upward from the upper end 112 of the cleaner body 110 . The grip part 140 is a part held by the user when using the vacuum cleaner 100 . As shown in FIG. 1 , when the vacuum cleaner 100 is installed in the recovery device 200 , the vacuum cleaner body 110 and the gripping portion 140 are in an upright posture relative to the suction nozzle 130 . When the vacuum cleaner 100 is used, the vacuum cleaner 100 can be changed from the upright posture to the recovery device 200 . It is a tilting posture towards the rear.

The nozzle 130 is provided with a nozzle housing 132 wider than the cleaner body 110 in order to form a wide suction space 131 for sucking dust. The nozzle housing 132 is wide in the width direction and can support the cleaner body 110 and the gripper 140 in a state that makes it difficult for the cleaner body 110 and the gripper 140 to tilt in the left and right directions when they are in an upright posture. That is, as long as the upright vacuum cleaner body 110 and the gripping part 140 are not acted upon by external forces, the nozzle 130 can support the vacuum cleaner body 110 and the gripping part 140 while maintaining their upright postures.

The suction space 131 of the nozzle housing 132 is opened toward the ground at the front side portion of the nozzle housing 132 . On the rear side of the opening portion, the suction space 131 is closed based on the bottom 134 of the nozzle housing 132 . A rotating cleaning brush 133 is arranged in the suction space 131 . The cleaning brush 133 is exposed from the nozzle housing 132 through the opening of the suction space 131 so as to be in contact with the ground.

The cleaner body 110 has a frame 111 that is elongated in the up-down direction. The lower end of the frame 111 is installed at the rear of the nozzle housing 132 in a manner that allows the vacuum cleaner body 110 to tilt in the front-rear direction.

Various members for sucking up dust on the ground and storing the sucked dust are built into the frame 111 . Specifically, as shown in FIG. 1 , a suction pipe 113 extending in the up-down direction is arranged inside the lower part of the frame 111 . In addition, a dust storage chamber 152 is provided on the upper side of the suction pipe 113, and a dust storage filter 115 that collects dust and allows air to pass is arranged in the dust storage chamber 152. A suction fan 116 is disposed above the dust filter 115 to generate an upward suction force for sucking up dust on the floor. A battery 117 for supplying electric power to the suction fan 116 is arranged above the suction fan 116 .

As shown in FIG. 3 , the dust chamber 152 is provided with a dust discharge port 124 that opens on the front side of the frame 111 . The dust discharge port 124 is opened (the state shown in FIG. 3 ) or closed (the state shown in FIGS. 1 and 2 ) by the cover 121 . The cover 121 is configured to be swingable up and down, and closes the dust discharge port 124 in the upright posture (closed posture) shown in FIGS. 1 and 2 . On the other hand, the cover 121 shown in FIG. 3 swings downward by a predetermined angle (a swing angle of 90° or less) from the closed position. When the lid 121 takes the posture shown in FIG. 3 , the opening of the dust chamber 152 is opened. That is, the cover 121 is in the open position in which the dust discharge port 124 is opened. In addition, the lid 121 is provided with a biasing member 150 that biases the lid 121 toward the closed position to prevent the lid 121 from being in the open position unnecessarily. For example, the force applying member 150 may be made of a torsion spring wound around the swing axis of the cover 121 so as to exert an upward swinging force on the cover 121 .

The dust filter 115 in the dust storage chamber 152 has the shape of a container that opens downward. Specifically, as shown in FIG. 4 , the dust filter 115 has a mesh filter 118 that forms the peripheral surface and an upper side of the dust filter 115 , and a holding frame 119 configured to hold the mesh filter 118 . The mesh filter 118 allows air to pass through while trapping dust contained in the air. As a result, the dust sucked up by the suction force of the suction fan 116 is stored in the space surrounded by the mesh filter 118 .

As shown in FIG. 1 , the suction pipe 113 extends in the up and down direction on the lower side of the dust storage chamber 152 to form a flow path for dust to flow when the vacuum cleaner 100 is used. The suction pipe 113 is fixed in the frame 111, and when the vacuum cleaner main body 110 tilts backward from the upright posture (the posture shown in FIG. 1), it tilts rearward together with the frame 111. When the cleaner body 110 is in the upright posture, the lower end of the suction pipe 113 is in contact with the bottom 134 of the nozzle housing 132 . That is, when the cleaner body 110 is in the upright posture, the lower end of the suction pipe 113 is closed based on the bottom 134 of the nozzle housing 132 . When the cleaner body 110 tilts backward from the upright posture, the lower end of the suction pipe 113 moves in the direction indicated by arrow A in FIG. 1 . As a result, the internal space of the suction pipe 113 is communicated with the suction space 131 of the nozzle housing 132 .

A check valve 114 is installed at the upper end of the suction pipe 113 to close the upper end of the suction pipe 113 when the suction fan 116 is not operating. In detail, only the rear end portion of the check valve 114 is fixed to the suction pipe 113 , and the remaining portion is allowed to move away from the upper end of the suction pipe 113 when receiving upward suction force from the suction fan 116 status. The check valve 114 may also be made of a thin rubber plate, for example. In this case, when the suction fan 116 operates, the check valve 114 bends and deforms upward based on the upward suction force of the suction fan 116, so that the opening of the upper end of the suction pipe 113 can be opened.

The suction fan 116 is fixed to the upper side of the dust storage room 152 . The suction fan 116 is provided with a motor and a blade portion formed to rotate based on the motor to generate an upward airflow.

(The overall structure of the recycling device)

The recovery device 200 is used to recover dust captured by the dust storage filter 115 and stored in the dust storage chamber 152 . Specifically, the recovery device 200 is configured to collect dust in the dust storage chamber 152 through the dust discharge port 124 of the vacuum cleaner 100 .

The recovery device 200 includes a frame 210 and a base plate 220 on which the frame 210 is attached to the front and the vacuum cleaner 100 can be mounted on the rear. The frame 210 of the recovery device 200 is provided with a dust flow channel 230 with an end opening toward the outside of the frame 210 to allow dust in the dust storage chamber 152 of the vacuum cleaner 100 to flow in. A dust storage portion 240 that stores dust collected through the dust flow path 230 is connected to the other end of the dust flow path 230 . A suction source 250 that generates a suction force for sucking dust in the dust storage chamber 152 and generates a suction airflow that carries the dust to the dust storage unit 240 is disposed below the dust storage unit 240 . In addition, a deodorizing processing unit 270 for deodorizing dust stored in the dust storage unit 240 is provided on the rear side of the suction source 250 . In order to control the deodorizing processing part 270 and the suction source 250, the control part 260 is arrange|positioned below the suction source 250.

As shown in FIG. 5 , the frame 210 has an upper portion 212 having a rear wall 214 that abuts the cleaner body 110 when the vacuum cleaner 100 is installed, and a lower portion 211 formed smaller in the front-rear direction than the upper portion 212 .

Specifically, as shown in FIG. 5 , the upper portion 212 is formed to form an internal space having a substantially rectangular shape in plan view, and includes a rear wall 214 , a front wall 217 , a right wall 218 , and a left wall 219 . The dust flow channel 230, the dust storage part 240, the suction source 250, and the deodorizing processing part 270 are accommodated in the internal space of the upper part 212. When the upper part 212 is in contact with the cleaner body 110 , the dust flow path 230 communicates with the dust storage chamber 152 of the cleaner 100 . The lower part 211 is recessed forward relative to the rear wall 214 of the upper part 212 , and a storage space 213 for accommodating the suction nozzle 130 is formed behind the lower part 211 . The control unit 260 is arranged in the lower part 211 .

The rear wall 214 of the upper portion 212 is provided with a groove portion 215 connected to the vacuum cleaner body 110 . The groove portion 215 has a cross-sectional shape on the rear wall 214 that is complementary to the front side portion of the cleaner body 110, and extends in the up and down direction as shown in FIG. 6 . The front side portion of the cleaner body 110 in the upright posture is fitted into the groove portion 215 . In this state, the cleaner body 110 is positioned in the width direction (left-right direction) of the groove portion 215 by being fitted into the groove portion 215 .

As shown in FIG. 6 , the rear wall 214 has a rectangular recovery opening 216 formed in the groove portion 215 . The recovery port 216 is formed in the same position as shown in FIG. 3 when the cleaner body 110 is in an upright posture and when the cleaner 100 is placed on the base plate 220 and the front portion of the cleaner body 110 is inserted into the groove portion 215 . The dust exhaust ports 124 overlap in the front and rear direction. That is, the recovery port 216 faces the dust discharge port 124 of the vacuum cleaner 100 when the vacuum cleaner 100 is installed in the recovery device 200 . The recovery port 216 has a size that allows the cover 121 to enter the recovery port 216 when the cover 121 of the vacuum cleaner 100 is in the open position shown in FIG. 3 .

A pair of small holes are formed on the upper side of the recovery port 216, and a pair of detection pieces 261 are provided respectively protruding from the outer side of the rear wall 214 through these small holes. These detection pieces 261 are used to detect that the cleaner body 110 is fitted into the groove portion 215 .

The detection piece 261 is biased in the direction of protruding from the rear wall 214, and when the cleaner body 110 is inserted into the groove portion 215, it is pressed into the small hole by the cleaner body 110 and is in a state of being submerged in the small hole. . A signal generating unit 262 configured to detect whether the detection piece 261 is submerged in the small hole and to generate a start signal when detecting that the detection piece 261 is submerged in the small hole is disposed in the housing 210 . The signal generating unit 262 is electrically connected to the control unit 260 shown in FIG. 1 .

As shown in FIG. 1 , the dust flow path 230 is arranged in the upper portion 212 of the frame 210 . The dust flow path 230 has a lower flow path 231 having the recovery port 216 described above, and an upper flow path 232 arranged at a higher position than the lower flow path 231 and connected to the dust storage part 240 . An intermediate flow channel 233 extending in the up and down direction is provided between the upper flow channel 232 and the lower flow channel 231 . The upper flow channel 232 and the lower flow channel 231 are connected by the middle flow channel 233 . The intermediate flow path 233 is formed with an ion inflow port 271 through which ions for deodorizing dust in the dust storage part 240 flow.

The dust storage unit 240 has a larger volume than the dust storage chamber 152 of the vacuum cleaner 100 . As shown in FIG. 5 , the dust storage part 240 is configured to form a rectangular space in plan view and includes a rear wall 241 , a front wall 242 , a right wall 243 , a left wall 244 , and a bottom wall 245 . The rear wall 241 is provided with an opening connected to the upper flow channel 232 of the dust flow channel 230 . A circular opening is formed in the bottom wall 245, and a dust filter 247 is attached to the opening. The dust filter 247 is configured to capture dust while allowing air to pass through it.

A suction source 250 is arranged below the dust removal filter 247 , and the suction source 250 is configured to suck the air in the dust storage part 240 through the dust removal filter 247 . When the vacuum cleaner 100 is installed in the recovery device 200, the suction force of the suction source 250 acts on the cover 121 of the vacuum cleaner 100 through the dust storage part 240 and the dust flow channel 230. The suction source 250 is configured to tilt the cover 121 from the closed position to the open position against the biasing force of the urging member 150 and obtain a suction force large enough to suck dust in the dust storage chamber 152 . For example, the suction source 250 may include a fan and a motor for rotationally driving the fan.

(Deodorization treatment section of the recovery device)

The deodorizing processing unit 270 that deodorizes dust in the dust storage unit 240 is provided near the lower flow path 231 of the dust flow path 230 . As shown in FIG. 7 , the deodorizing treatment unit 270 has an ion flow channel 272 for flowing ions that deodorize dust. The ion flow channel 272 includes: an upstream end 273 provided on the lower side of the lower flow channel 231 of the dust flow channel 230; a downstream end 275 connected to the ion flow inlet 271 of the dust flow channel 230; connecting the upstream end 273 and the downstream end Part 275 is connected to the middle part 277 .

The upstream end portion 273 forms a flow path extending in the left-right direction, and an ion supply portion 274 that generates a supply airflow for supplying ions to the dust storage portion 240 is disposed at the upstream end portion 273 . Since ions are lighter than dust, the ion supply unit 274 is configured to operate with smaller power consumption than the suction source 250 for sucking dust. For example, the ion supply unit 274 may include a fan and a motor that rotates and drives the fan with lower power consumption than the motor of the suction source 250 .

The intermediate portion 277 is provided on the left side of the lower flow path 231 of the dust flow path 230 and extends upward from the upstream end portion 273 . The upper end of the intermediate portion 277 is connected to the downstream end portion 275 . The flow channel cross section of the connecting portion between the intermediate portion 277 and the downstream end portion 275 is narrower than the flow channel cross section at other locations in the ion flow channel 272 .

The downstream end portion 275 forms a flow path extending obliquely upward from the upper end of the intermediate portion 277 toward the ion inlet 271 . A valve body 276 for opening and closing the ion flow channel 272 is accommodated in the downstream end 275 of the ion flow channel 272 . In this embodiment, a ball valve is used as the valve body 276 . The valve body 276 shown in FIG. 7 is in a position that closes the upper end of the intermediate portion 277. In the following description, the position of the valve body 276 shown in FIG. 7 is called a “closed position”. In addition, the valve body 276 is formed to be lightweight and to the extent that it can float based on the supply air flow generated by the ion supply part 274 .

As shown in FIG. 8 , an ion release tube 280 protruding from the side wall of the upstream end 273 toward the inside of the ion flow channel 272 is provided at the upstream end 273 of the ion flow channel 272 . An ion generating box 281 is fixed on the outer surface of the ion flow channel 272 . The ion generating part 282 configured to release ions into the ion flow channel 272 via the ion releasing cylinder 280 is disposed in the ion generating box 281 .

The ion generating part 282 includes a rod-shaped discharge electrode 283 arranged substantially coaxially with the ion discharge tube 280 and an annular counter electrode 284 arranged between the discharge electrode 283 and the ion discharge tube 280 so as to face the discharge electrode 283 . . The voltage application unit 285 is connected to the discharge electrode 283 and applies a voltage to the discharge electrode 283 based on the voltage application unit 285 . The counter electrode 284 is fixed in the ion generating box 281 in a grounded state. When the voltage applying part 285 applies voltage to the discharge electrode 283, a potential difference is generated between the discharge electrode 283 and the counter electrode 284, thereby causing a gap between them. discharge occurs. Ions are generated based on this discharge.

The voltage applying part 285, the ion supply part 274, and the suction source 250 of the ion generating part 282 are electrically connected to the control part 260, and are controlled based on the control part 260.

(action description)

During the cleaning operation, if the suction fan 116 of the vacuum cleaner 100 is operated, the check valve 114 is opened based on the suction force generated by the suction fan 116, and the dust on the ground is removed through the suction nozzle 130 and the suction pipe 113. Inhaled into dust storage chamber 152. The dust flowing into the dust storage chamber 152 is collected by the dust storage filter 115 . When the cleaning operation is completed, the suction fan 116 of the vacuum cleaner 100 stops, and the check valve 114 closes the upper end of the suction pipe 113 . Therefore, dust collected by the dust storage filter 115 does not fall to the suction pipe 113 and remains in the dust storage chamber 152 .

In order to collect the dust accumulated in the dust storage chamber 152 of the vacuum cleaner 100, the vacuum cleaner 100 is attached to the recovery device 200. Specifically, the vacuum cleaner 100 is placed on the base plate 220 of the recovery device 200 with the cleaner body 110 and the grip portion 140 in an upright posture. When the vacuum cleaner body 110 in the upright posture is inserted into the groove portion 215 of the recovery device 200, the cover 121 of the vacuum cleaner 100 and the recovery port 216 of the recovery device 200 face each other in the front-rear direction. In this state, the detection piece 261 of the recovery device 200 is pressed forward by the vacuum cleaner body 110 , and the detection piece 261 is embedded in the small hole of the rear wall 214 .

The fact that the detection piece 261 has sunk into the small hole is detected by the signal generating unit 262 . The signal generating unit 262 generates a start signal based on detection of the penetration of the detection piece 261 into the small hole. The activation signal is transmitted from the signal generation unit 262 to the control unit 260, and the control unit 260 operates the suction source 250 for a designated time based on receipt of the activation signal.

When the suction source 250 is operated, the suction force of the suction source 250 acts on the cover 121 opposite to the recovery port 216 through the dust storage part 240 and the dust flow channel 230 . The cover 121 receives the suction force of the suction source 250 and tilts downward from a closed position for closing the dust discharge port 124 to an open position for opening the dust discharge port 124 as shown in FIG. 3 . The dust discharge port 124 becomes an open state. As a result, the dust storage chamber 152 of the vacuum cleaner 100 communicates with the internal space of the dust storage part 240 via the dust flow path 230 . In this state, a suction airflow is generated that causes the dust in the dust storage chamber 152 of the vacuum cleaner 100 to flow into the dust flow path 230. The dust in the dust storage chamber 152 rides on the suction airflow to flow in the dust flow path 230 and flows into the dust flow path 230. into the dust storage part 240 of the recovery device 200. In the dust storage unit 240 , dust is collected by the dust filter 247 and stored in the dust storage unit 240 .

In addition, while the suction source 250 is operating, the valve body 276 disposed at the downstream end 275 of the ion flow channel 272 connected to the dust flow channel 230 is maintained in the closed position due to gravity. Therefore, the suction airflow does not flow into the ion flow path 272 but flows toward the dust storage part 240 .

When the operating time of the suction source 250 ends, the control unit 260 stops the suction source 250 . When the suction source 250 stops, the suction force acting on the cover 121 of the vacuum cleaner 100 disappears, and the cover 121 returns to the closed position based on the urging member 150 . If the cover 121 returns to the closed position, the dust discharge port 124 of the vacuum cleaner 100 is closed. At this time, as shown in FIG. 1 , the recovery port 216 of the recovery device 200 is also closed by the cover 121 .

The dust storage unit 240 has a larger volume than the dust storage chamber 152 of the vacuum cleaner 100 and can store a large amount of dust. When a large amount of dust accumulates in the dust storage unit 240, odor generated from the dust may become a problem. In order to suppress the odor generated from the dust, the control unit 260 operates the ion generating unit 282 and the ion supply unit 274 after the suction source 250 is stopped. The control unit 260 operates the ion generating unit 282 and the ion supply unit 274 for a time length (for example, about 3 hours) that is considered to be sufficient to obtain a sufficient deodorizing effect on the dust in the dust storage unit 240 . The operation time of the ion generating unit 282 and the ion supply unit 274 is longer than the time required for the suction source 250 to collect dust from the vacuum cleaner 100 (that is, the operation time of the suction source 250).

When the ion generating unit 282 operates, the voltage applying unit 285 applies a voltage to the discharge electrode 283 . As a result, a potential difference is generated between the discharge electrode 283 and the counter electrode 284 . Based on this potential difference, discharge occurs between the discharge electrode 283 and the counter electrode 284 . Ions are generated based on this discharge. Ions are released into the ion flow channel 272 via the ion release cylinder 280 based on the momentum of the discharge between the discharge electrode 283 and the counter electrode 284 .

At this time, the ion supply part 274 generates a supply air flow. As shown in Figure 9, supply air flow causes valve body 276 to float. That is, the valve body 276 moves to the open position in which the ion flow path 272 is opened. As a result, the upper end of the intermediate portion 277 of the ion flow channel 272 is opened, and the flow channel for supplying the ions released into the ion flow channel 272 to the dust flow channel 230 is opened. The ions flow into the dust flow channel 230 through the ion flow inlet 271 together with the supply air flow (refer to the arrow in FIG. 9 ) flowing in the ion flow channel 272 . At this time, the recovery port 216 of the dust flow path 230 is closed by the cover 121 of the cleaner 100 . Therefore, the supply airflow flowing into the dust flow path 230 flows toward the dust storage part 240 . Due to the supply airflow flowing toward the dust storage unit 240 , ions reach the dust storage unit 240 and deodorize the dust in the dust storage unit 240 .

In the above-described embodiment, ions are not based on the suction airflow generated by the suction source 250 in order to recover dust from the vacuum cleaner 100 but are based on the supply generated by the ion supply part 274 that is separately provided independent of the suction source 250 The dust is transported to the dust storage part 240 by the air flow. Since the ion supply unit 274 generates the supply air flow with smaller power consumption than the suction source 250 , even if the ion supply unit 274 is operated for a long time, the power consumption does not become excessively large.

Since the supply air flow is generated with a small power consumption, the suction air flow is weaker than the suction air flow generated with a relatively large power consumption. However, since the ions transported by the supply airflow are lighter than the dust transported by the suction airflow, they can be transported to the dust storage part 240 even with a weak supply airflow.

Since the ions transported by the supply airflow are used to deodorize the dust transported to the dust storage unit 240 by the suction airflow, the generation timing of the supply airflow is set after the generation timing of the suction airflow. That is, the operation time of the ion supply unit 274 is set after the operation time of the suction source 250, and these operation times do not overlap in time. Since the ion supply unit 274 and the suction source 250 do not operate simultaneously, the peak value of the power consumption of the recovery device 200 can be suppressed.

By staggering the operation times of the ion supply unit 274 and the suction source 250, the supply air flow for ion transportation and the suction air flow for dust transportation do not interfere with each other's flow. Therefore, a piping structure connecting the ion flow channel 272 to the dust flow channel 230 is allowed. By adopting such a piping structure, part of the dust flow path 230 (that is, the flow path section of the dust flow path 230 from the ion inlet 271 to the dust storage part 240) can be used for both ion transportation and dust transportation. In this case, compared with a recovery device having a structure in which the ion flow path 272 is extended from the ion supply part 274 to the dust storage part 240, the recovery device 200 can be downsized.

In the above-described embodiment, in order to prevent the suction air flow from flowing into the ion flow channel 272 from the dust flow channel 230 through the ion flow inlet 271, the valve body 276 is arranged at the downstream end 275 of the ion flow channel 272. The valve body 276 is maintained in a closed position closing the upper end of the intermediate portion 277 of the ion flow channel 272 due to the action of gravity while the suction airflow flows in the dust flow channel 230 . Therefore, the suction gas flow does not flow into the ion flow channel 272 . On the other hand, when the supply air flow for ion transport is generated by the ion supply unit 274 , the valve body 276 floats based on the supply air flow, thereby opening the upper end of the intermediate portion 277 of the ion flow path 272 . As a result, the ions sequentially pass through the ion flow channel 272 and the dust flow channel 230 and reach the dust storage part 240. In this way, electrical control is not required for the opening and closing operation of the valve body 276 .

In the above-described embodiment, a ball valve is used as the valve body 276 . Alternatively, the valve body 276 may be configured as a thin plate-shaped valve member. Alternatively, a solenoid valve can be used as the valve body 276, but electrical control is required.

In the above-described embodiment, the valve body 276 is arranged at the downstream end 275 of the ion flow channel 272 . As an alternative, the valve body 276 may also be disposed at the middle portion 277 or the upstream end portion 273 of the ion flow channel 272 .

In the above embodiment, the ion flow channel 272 is connected to the dust flow channel 230 . As an alternative, the ion flow channel 272 may also be connected to the dust storage part 240.

In the above-described embodiment, the control unit 260 operates the ion supply unit 274 and the ion generating unit 282 after the suction source 250 is stopped. However, the control unit 260 is not limited to this, and the control unit 260 may cause the ion supply unit 274 and the ion generating unit 282 to operate periodically.

In the above-described embodiment, the dust collecting device is configured as the recovery device 200 that recovers dust from the vacuum cleaner 100 . As an alternative, the dust collection device can also be designed as a vacuum cleaner 100 . In this case, as shown in FIG. 10 , the deodorizing processing unit 270 may be configured around the suction pipe 113 of the vacuum cleaner 100 .

For example, the ion flow inlet 271 may be provided in the suction pipe 113 . The ion flow channel 272 may be connected to the suction pipe 113 at the ion flow inlet 271 and extend downward. An ion supply part 274 may be provided at the lower end of the ion flow channel 272 to generate an upward supply gas flow, and a valve body 276 may be provided at the downstream end 275 of the ion flow channel 272 . In addition, the ion generating part 282 may be configured to release ions into the ion flow channel 272 on the upper side of the ion supply part 274 . The ion supply part 274 and the voltage application part 285 of the ion generating part 282 may be connected to the control part 263.

The control unit 263 may be connected to an attitude sensor 264 capable of detecting whether the cleaner body 110 of the vacuum cleaner 100 is in an upright posture or in a tilting posture after being tilted from the upright posture. In this case, the control unit 263 is configured to operate the ion supply unit 274 and the voltage application unit 285 for a predetermined length of time when the posture sensor 264 detects that the cleaner body 110 becomes the upright posture.

When the vacuum cleaner body 110 is in the upright position, the lower end of the suction pipe 113 is closed by the bottom 134 of the nozzle housing 132 of the suction nozzle 130 . In this state, if the ion supply part 274 generates a supply airflow, the supply airflow flows into the suction pipe 113 through the ion inlet 271 and flows upward. The supply air flow flowing upward in the suction pipe 113 opens the check valve 114 of the suction pipe 113 upward and flows into the dust storage chamber 152 (dust storage part). During this period, if the ion generating part 282 releases ions into the ion flow channel 272, the ions will flow into the dust storage chamber 152 (dust storage part) riding on the supply air flow, and the dust in the dust storage chamber 152 (dust storage part) will be removed. Smelly.

The deodorizing processing unit 270 shown in FIG. 10 is provided in the stick type vacuum cleaner 100. Alternatively, the deodorizing processing unit 270 may be built into a canister vacuum cleaner.

(effect etc.)

The dust collecting device according to the above-described embodiment has the following characteristics and has the following effects.

The dust collecting device according to one aspect of the above-mentioned embodiment includes: a suction source that generates suction force for sucking dust and a suction airflow for transporting dust; and a dust storage unit that stores dust transported by the suction airflow. the ion generating part generates ions; and the ion supply part generates a supply air flow that supplies the ions generated by the ion generating part to the dust storage part with power consumption smaller than that of the suction source.

According to the above configuration, in order to send ions into the dust storage part, it is sufficient to send the ions into the dust storage part through the supply air flow generated by the ion supply part, and it does not need to be as strong as the suction air flow generated by the suction source to transport the dust. airflow is sufficient. Therefore, the ion supply unit can be configured to generate the supply air flow with smaller power consumption than that of the suction source. Therefore, in order to obtain the deodorizing effect on dust, even if the ion supply is operated for a long time, the power consumption of the dust collecting device will not become too large.

In the above-described configuration, the dust collecting device may further include a control unit that controls the suction source, the ion supply unit, and the ion generating unit. The control unit may be configured to operate the ion supply unit and the ion generating unit after stopping the suction source.

According to the above configuration, the control unit operates the ion supply unit and the ion generating unit after stopping the suction source. Therefore, the ion supply unit and the ion generating unit do not operate simultaneously with the suction source. Therefore, the peak value of the power consumption of the dust collector can be suppressed.

In the above configuration, the dust collecting device may further include: a dust flow channel connected to the dust storage part in a manner that allows the suction airflow to flow to the dust storage part; and an ion flow channel that allows the supply airflow to flow from the ion flow channel to the dust storage part. Supply department extension setup. The ion flow channel may be connected to the dust flow channel in such a manner that the supply airflow flows from the ion flow channel through a part of the dust flow channel into the dust storage part.

According to the above configuration, the ion flow channel is connected to the dust flow channel in such a manner that the supply airflow flows from the ion flow channel through part of the dust flow channel into the dust storage part. Therefore, a part of the flow channel for supplying ions to the dust storage part is Ability to utilize dust flow channels. Therefore, compared with a structure in which the ion flow path is connected to the dust storage portion independently of the dust flow path, the dust collecting device can be downsized.

In the above configuration, the dust collecting device may further include: a dust flow channel connected to the dust storage part in a manner that allows the suction airflow to flow to the dust storage part; and an ion flow channel that allows the supply airflow to flow from the ion supply part to the dust storage part. Extended setting; and, the valve body opens and closes the ion flow channel. The ion flow channel may be connected to the dust flow channel in such a manner that the supply airflow flows from the ion flow channel through a part of the dust flow channel into the dust storage part. The valve body may be configured to be maintained in a closed position for closing the ion flow channel when the ion supply part is not in operation, and to be displaced to an open position for opening the ion flow channel based on the supply gas flow when the ion supply part is in operation.

According to the above configuration, the suction source operates before the ion supply unit operates, and the suction airflow flows in the dust flow path. Although the ion flow channel is connected to the dust flow channel, the ion flow channel is closed based on the valve body at this time. Therefore, the suction air flow does not flow into the ion flow path but can flow into the dust storage part. Thereafter, if the ion supply part is operated, the valve body in the closed position is displaced to the open position based on the supply air flow, and the supply air flow can reach the dust storage part through the ion flow channel.

In the above-described configuration, the dust collecting device may further include a control unit that controls the suction source, the ion supply unit, and the ion generating unit. The control unit may be configured to operate the ion supply unit and the ion generating unit for a time longer than a time set for operating the suction source.

According to the above configuration, the control unit operates the ion supply unit and the ion generating unit for a longer time than the time for operating the suction source. Therefore, ions can be supplied to the dust storage unit for a relatively long time. If ions are supplied to the dust storage part for a long time, the dust in the dust storage part can be deodorized based on the ions.

Industrial availability

The dust collecting device of the above-mentioned embodiment can be suitably applied to a device used for cleaning work.

Claims (5)

1. A dust collecting device, characterized by comprising: a suction source that generates suction force for sucking dust and generating a suction airflow for transporting dust; The dust storage part stores the dust transported by the suction airflow; an ion generating part to generate ions; and, The ion supply unit generates a supply airflow that supplies the ions generated by the ion generating unit to the dust storage unit with power consumption smaller than that of the suction source. 2. The dust collecting device according to claim 1, further comprising: A control part, controlling the suction source, the ion supply part and the ion generating part; wherein, The control unit is configured to operate the ion supply unit and the ion generating unit after stopping the suction source. 3. The dust collecting device according to claim 1 or 2, further comprising: A dust flow channel is connected to the dust storage part in a manner that allows the suction airflow to flow to the dust storage part; and, An ion flow channel is provided extending from the ion supply part in a manner that allows the supply gas flow to flow; wherein, The ion flow channel is connected to the dust flow channel so that the supply airflow flows from the ion flow channel through a part of the dust flow channel into the dust storage part. 4. The dust collecting device according to claim 2, further comprising: A dust flow channel is connected to the dust storage part in a manner that allows the suction airflow to flow to the dust storage part; an ion flow channel extending from the ion supply part in a manner that allows the supply gas flow to flow; and, The valve body opens and closes the ion flow channel; wherein, The ion flow channel is connected to the dust flow channel in such a manner that the supply airflow flows from the ion flow channel through a part of the dust flow channel into the dust storage part, The valve body is configured to be maintained in a closed position closing the ion flow channel when the ion supply part is not in operation, and is displaced to open the ion flow path based on the supply gas flow when the ion supply part is in operation. The open position of the flow channel. 5. The dust collecting device according to claim 1, further comprising: A control part, controlling the suction source, the ion supply part and the ion generating part; wherein, The control unit is configured to operate the ion supply unit and the ion generating unit for a time longer than a time set for operating the suction source.