Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.
1 is a perspective view showing the internal configuration of the cleaner body according to the present embodiment, Figure 2 is a cross-sectional perspective view showing the internal configuration of the cleaner body according to the present embodiment. 1 illustrates a state in which a case forming the outer shape of the cleaner body is removed.
1 and 2, the vacuum cleaner of the present embodiment includes a main body provided with a suction motor assembly 30 for generating suction force. In this embodiment, since there is a main interest in the internal configuration of the main body, detailed illustration and description of the external appearance and other configuration of the main body will be omitted.
The main body is detachably mounted with a dust separator 10 for separating dust in the air and storing the separated dust. The main body includes a mounting part 5 on which the dust separation device 10 is mounted.
In addition, the main body includes a guide tube 60 for guiding the air containing dust to move to the dust separation device 10, and a purification device 20 for filtering the air discharged from the dust separation device 10. Is provided.
The purification device 20 is located between the dust separation device 10 and the suction motor assembly 30 based on the flow of air. Therefore, the air containing the dust flows to the suction motor assembly 30 through the guide tube 60, the dust separation device 10, the purifying device 20.
In the description of this embodiment, it is noted that "dust" includes other foreign matter in addition to the dictionary meaning.
First, the dust separation apparatus 10 will be briefly described.
The dust separation device 10, a dust separation unit 110 for separating the dust in the air by a cyclone method, a dust collecting container 120 to store the dust separated in the dust separation unit 110, A cover member 130 covering the dust separator 110 is included.
An inside of the dust collecting container 120 is provided with a suction pipe 122 to allow the air of the guide tube 60 to be moved to the dust separation unit 110. The suction pipe 122 may be integrally formed with the dust collecting container 120 or may be coupled to the dust collecting container 120 and extend in the vertical direction.
The dust separation unit 110 is detachably coupled to the upper side of the dust collecting container 120, the dust separation unit 110, in the state coupled to the dust collecting container 120, the suction pipe 122 and A suction port 112 is formed in communication.
In addition, the dust separation unit 110 includes a dust discharge unit 115 through which dust separated from air is discharged, and an air discharge port 114 through which air is discharged. In addition, a filter member 116 for filtering the air discharged to the air outlet 114 is coupled to the dust separation unit 110.
On the other hand, the purification device 20, a filter mounting unit 210, a filter unit 240 for filtering the air discharged from the dust separation device 10 accommodated in the filter mounting unit 210, and the filter unit A discharge duct 215 through which the dust removed at 240 flows is included.
The discharge duct 215 is in selective communication with the guide tube 60. That is, the dust removed from the filter unit 240 flows through the discharge duct 215 to the guide tube 60 and then to the dust separation device 10.
In addition, the discharge duct 215 is opened and closed by the opening and closing device 50. In another aspect, the discharge duct 215 is selectively communicated with the guide tube 60 by the opening and closing device 50. The opening and closing device 50 includes an opening and closing member 510 provided in the guide tube 60. The opening and closing member 510 is rotatably coupled to the guide tube 60, it is rotated by an opening and closing motor to be described later.
On the other hand, the filter unit 240 is selectively rotated in the filter mounting portion 210 by the rotary device 40.
The rotary device 40 includes a rotary motor 410 and a gear 420 coupled to the shaft of the rotary motor 410. A portion of the gear 420 is inserted into the filter mounting unit 210 from the outside of the filter mounting unit 210 and is connected to the filter unit 240.
The suction motor assembly 30 includes a suction motor (not shown) and a motor housing 310 in which the suction motor is accommodated. The motor housing 310 is formed with an inlet 312 through which air discharged from the purifying device 20 is introduced.
3 is a perspective view showing the configuration of the opening and closing device according to the present embodiment.
Referring to FIG. 3, the opening and closing device 50 includes an opening and closing member 510 for selectively communicating the discharge duct 215 and the guide tube 60, and opening and closing for operating the opening and closing member 510. A motor 520 and a detector 530 for detecting a rotation position of the opening and closing member 510 are included.
On the other hand, the guide tube 60 is formed with an inlet 610 through which the dust discharged from the discharge duct 215 is introduced.
The rotating shaft 512 of the opening and closing member 510 is installed at the inlet 610. In addition, the pressing unit 514 for selectively pressing the sensing unit 530 is coupled to the rotation shaft 512 on the outside of the inlet 610. The open / close motor 520 is coupled to the pressing unit 514. For example, the sensing unit 530 may be applied with a micro switch.
Accordingly, the pressing unit 514 is rotated together with the opening and closing member 510, and the pressing unit 514 is the detection unit 530 while the opening and closing member 510 closes the discharge duct 215. ) Will be pressed. Then, the stop signal of the open / close motor 520 is transmitted from the sensing unit 530 to the controller to be described later, and the operation of the open / close motor 520 is stopped by the control unit.
The switch motor is a motor capable of bidirectional rotation, for example, a synchronous motor (synchronous motor) may be used.
The synchronized motor is configured to be capable of forward and reverse rotation by the motor itself. When the force applied to the motor is greater than or equal to a predetermined value when the motor rotates in one direction, the rotation of the motor is converted to the other direction.
At this time, the force applied to the motor is a resistance force (torque: torque) generated as the opening and closing member 510 is interfered with the inner circumferential surface of the guide tube 60 in the process of opening the discharge duct 510. When the resistance reaches a set value, the rotation of the motor is configured to change direction. When the resistive force is applied to the motor, the current applied to the motor is momentarily increased, so that the controller stops the operation of the motor when the current of the motor is momentarily increased.
In the present exemplary embodiment, the operation of the open / close motor 520 is controlled by the operation of the sensing unit 530 and the resistance applied to the open / close motor 520, but the rotation of the open / close motor 520 is different. The number may be set in advance, and the opening / closing motor may be configured to rotate only by the set speed.
Hereinafter, the purification apparatus will be described in detail.
4 is a perspective view of the purifying apparatus according to the present embodiment, FIG. 5 is a cross-sectional perspective view of the purifying apparatus according to the present embodiment, and FIG. 6 is an exploded perspective view of the filter unit according to the present embodiment. In FIG. 6, the filter is removed.
4 to 6, the purification device 20 includes a filter unit 240, a housing 230 protecting the filter unit 240, and a filter mounting part in which the housing 230 is accommodated. 210 and a cover 250 rotatably coupled to an upper side of the filter mounting unit 210 to selectively open and close the filter mounting unit 210.
In detail, the filter mounting unit 210 is formed with an inlet 211 through which the air discharged from the dust separation device 10 is introduced, and an outlet 212 through which the air passing through the filter unit 240 is discharged. .
In addition, a partition rib 213 is formed on an inner surface of the filter mounting part 210 to vertically partition an inner space of the filter mounting part 210 in a state where the housing 230 is accommodated therein. In addition, a discharge duct 215 is formed at an outer lower side of the filter mounting unit 210 based on the partition rib 213. The discharge passage 216 through which dust flows is formed in the discharge duct 215.
In addition, the filter mounting unit 210 is provided with a filter detecting unit 270 for detecting the mounting of the filter unit 240. As the filter detecting unit 270, for example, a switch may be used, or may be a hall sensor that detects a magnetic member provided in the housing. In the present embodiment, the type of the filter detector 270 is not limited.
The filter unit 240 is rotated with respect to the housing 230 by the rotating device 40 in a state accommodated in the housing 230.
The filter unit 240 includes a filter housing 241 and a filter seated on the filter housing 241. A first partition 245 is formed on one surface of the filter housing 241 to partition one space of the filter housing 241, and a second partition is partitioned on the other surface of the filter housing 241. 245a is formed. The partitions 245 and 245a are formed on the same horizontal plane. In addition, the second partition 245a partitions the internal space of the filter mounting unit 210 in a state where the filter unit 240 is accommodated in the filter mounting unit 210.
In addition, the filter housing 241 is provided with a plurality of holes 243 through which air passes.
The filter may include a first filter 246 seated on one surface of the filter housing 241 at one side of the first compartment 245, and a filter housing at the other side of the first compartment 245. A second filter 247 is mounted on one surface of the 241. In addition, the first filter 246 and the second filter 247 are arranged in parallel with respect to the flow direction of air.
A plurality of gear teeth 242 are formed around the filter housing 241 to engage the gear 420. In addition, a pair of magnetic members 244 is provided around the filter housing 241.
The pair of magnetic members 244 are disposed at intervals of 180 degrees with respect to the rotation center of the filter housing 241. The virtual line connecting the pair of magnetic members 244 is positioned on the same horizontal plane as the partitions 245 and 245a.
The filter mounting unit 210 is provided with a rotation detecting unit 260 for detecting a rotation position of the filter housing 241. The rotation detecting unit 260 includes a hall sensor 262 for detecting a magnetism of one of the magnetic members of the pair of magnetic members 244 during the rotation of the filter housing 241. ) Is included. The Hall sensor 262 is located on the same horizontal plane as the partition rib 213.
When the magnetism of one of the magnetic members 244 is detected by the hall sensor 262, the rotation detection unit 260 transmits a stop signal of the rotary motor 410 to the controller, and thus the filter housing ( Rotation of 241 is stopped. At this time, since the pair of magnetic members 244 are disposed at intervals of 180 degrees, the filter housing 241 rotates 180 degrees in one rotation.
In the housing 230, a first housing 231 on which the filter unit 240 is seated, and the first housing 231 in a state where the filter unit 240 is seated on the first housing 231. A second housing 237 coupled to is included.
The second housing 237 is formed in a ring shape and includes a first opening 238 through which air flows. In addition, the gear tooth 242 of the filter unit 240 passes through the first opening 238 while the second housing 237 is coupled to the first housing 231. Protrudes outward.
A second opening 232 is formed in the first housing 231 for the air passing through the filter unit 240 to flow.
The first housing 231 is provided with a rotation shaft 233 which provides a rotation center of the filter unit 240 and guides the rotation of the filter unit 240. The rotation shaft 233 is coupled to the first partition 245 of the filter housing 241.
In a state where the filter unit 240 is accommodated in the housing 230, the housing 230 is selectively accommodated in the filter mounting unit 210.
When the housing 230 is accommodated in the filter mounting unit 210, the gear teeth 242 of the filter unit 240 protruding outward of the housing 230 are engaged with the gear 420.
In addition, the first housing 231 is formed with a handle 234 for the user to easily grip.
At this time, in order to prevent the shaking of the housing 230 in the state in which the housing 230 is accommodated in the filter mounting unit 210, a first guide part 217 is formed in the filter mounting unit 210. The first housing 231 is formed with a second guide portion 236 for insertion into the first guide portion 217.
In addition, when the hall sensor 262 and any of the magnetic members 244 are aligned with the first housing 231 and the second housing 237 while the filter unit 240 is rotated, the hall sensor At 262, holes 235 and 239 are formed to easily detect the magnetism of the magnetic member 244.
Meanwhile, FIG. 5 illustrates that the compartment rib 213 of the filter mounting unit 210 and the compartments 245 and 245a of the filter housing 241 are positioned on the same line with each other.
In this state, the inner space of the filter mounting unit 210 is divided up and down based on the partition ribs 213 and the partition sections 245 and 245a. In addition, the first filter 246 is positioned in the upper space 214a as an example, and the second filter 247 is positioned in the lower space 214b as an example. Then, the air discharged from the dust separation device 10 is introduced into the upper space 214a through the inlet 211 of the filter mounting unit 210 to pass through only the first filter 246.
That is, based on the entire filter, the air introduced into the purifying device 20 passes through a portion of the filter.
At this time, unless the discharge duct 215 and the guide tube 60 communicate with each other, since the suction force of the suction motor hardly acts on the lower space 214b, air flows in the lower space 214b. This practically does not occur.
Here, the upper space 214a serves to connect the inlet 211 and the outlet 212 of the filter mounting unit 210, so that the upper space 214a may be referred to as a connection flow path.
7 is a vertical cross-sectional view showing a state in which the dust collecting container according to the present embodiment is mounted on the mounting portion, and FIG. 8 is a horizontal cross-sectional view of the dust collecting container according to the present embodiment.
7 and 8, the dust collecting container 120 defines a dust storage unit 121 in which dust is stored. In addition, the dust storage unit 121 is provided with a pressing member 150 for compressing the stored dust to be movable.
The pressure member 150 includes a pressure plate 152 for compressing dust and a rotation shaft 154 integrally formed with the pressure plate 152. The rotating shaft 154 is coupled to the fixed shaft 124 protruding upward from the bottom surface of the dust collecting container.
The pressing member 150 is driven by the driving device 160. In detail, the driving device 160 includes a compression motor 161 provided in the mounting unit 5 and a power transmission unit for transmitting the power of the compression motor 161 to the pressing member.
The power transmission unit is connected to the shaft of the compression motor 161, the drive gear 162 (also referred to as a first power transmission unit), and is connected to the pressing member 150 is driven from the drive gear 162 It includes a driven gear (164: also referred to as the second power transmission portion) that receives the.
The shaft 166 of the driven gear 164 penetrates through the dust collecting container 120 at the lower side of the dust collecting container 120 and is connected to the rotating shaft 154 of the pressing member 150. Therefore, the driven gear is exposed to the outside of the dust collecting container 120.
The drive gear 162 is exposed to the outside of the mounting portion 5 in a state coupled to the compression motor 161. The mounting portion 5 is formed with an opening 6 through which the drive gear 162 passes.
Since the driving gear 162 is exposed to the outside of the mounting portion 5 as described above, when the dust collecting container 120 is mounted to the mounting portion 5, the driven gear 164 and the driving gear 162. Is engaged so that the pressing member 150 is rotatable.
On the other hand, the driven gear 164 is provided with a magnetic member 165. For example, the magnetic member 165 may be integrally formed by inserting injection into the driven gear 164.
The inside of the mounting portion 5 is provided with a plurality of detectors for detecting the magnetic force generated by the magnetic member 165. In detail, the detection unit includes a mounting detection unit 174 for detecting the mounting of the dust collecting container 120 and a motion detection unit 176 for detecting the movement of the driven gear 164. Hall sensors may be applied to the sensing units 174 and 176. In this embodiment, since the pressing member 150 moves together with the driven gear 164, detecting the movement of the driven gear 164 may be described as detecting the movement of the pressing member 150. .
In addition, the mount detecting unit 174 is positioned below the center vertically of the driven gear 164 in order to detect the magnetization of the portion A of the magnetic member 165.
The motion detector 176 is spaced apart from the mounting detector 174, and detects the magnetism of part B of the magnetic member 165.
At this time, in order to effectively detect the magnetism generated from the magnetic member 165 by the motion detector 176, the motion detector 176, the dust collecting container 120 is mounted to the mounting portion (5) When the driven gear 164 is rotated, it is preferable that the magnetic member 165 is located vertically below the trajectory that is drawn.
Therefore, in the state where the dust collecting container 120 is mounted on the mounting portion 5, the mounting detection unit 174 is always detected magnetic.
On the other hand, in the process in which the driven gear 164 is rotated, only when the magnetic member 165 is located above the motion detecting unit 176, the magnetic member 165 in the motion detecting unit 176 The magnetism is detected, and thus the movement of the driven gear 164 or the pressing member 150 can be confirmed. Detailed description thereof will be described below.
On the other hand, the connecting portion 126 is formed between the fixed shaft 124 and the suction pipe 122. The connection part 126 is integrally formed with the fixed shaft 124 and the suction pipe 122. The connection part 126 prevents dust from passing between the fixed shaft 124 and the suction pipe 122 in the process of compressing the dust by the pressing member 150.
9 is a block diagram showing a configuration of a vacuum cleaner according to the present embodiment.
Referring to FIG. 9, the vacuum cleaner may include an operation signal input unit 70 for selecting a power (eg, strong, medium, or weak mode) of the suction motor, and a mode selection unit for selecting an operation mode of the vacuum cleaner ( 72, a controller 80 for controlling the operation of the suction motor 320, the rotary motor 410, and the open / close motor 520 according to the signal input from the mode selector 72, and the filter. Rotation detection unit 260 for detecting the rotational position of the unit 240, compression motor 161 for rotating the pressing member 150, and mounting detection unit 174 for detecting the mounting of the dust collecting container And a motion detector 176 for detecting a movement of the pressing member 150, a filter detector 270 for detecting mounting of the filter unit, and a signal generator 180 for generating a signal to the outside of the cleaner. And a dust amount display unit 190 for displaying the amount of dust stored in the dust collecting container. .
In detail, the operation mode includes a general cleaning mode and a filter cleaning mode. The general cleaning mode is a mode for cleaning the floor or the indoor space. In this general cleaning mode, the discharge duct 215 is closed by the opening / closing member 510.
The filter cleaning mode is a mode for removing dust accumulated in the filter. Under the filter cleaning mode, the discharge duct 215 is opened by the opening / closing member 510.
In addition, the suction motor 320 is operated under the general cleaning mode and the filter cleaning mode.
The compression motor 161 is preferably a motor capable of forward rotation and reverse rotation. That is, the compression motor 161 may be a motor capable of bidirectional rotation.
Accordingly, the pressing member 150 may perform forward rotation (clockwise rotation) and reverse rotation (counterclockwise rotation), and both sides of the suction pipe 122 may be rotated as the pressing member 150 rotates forward and reverse. Dust can be compressed.
As such, in order to enable forward and reverse rotation of the compression motor, a synchronous motor may be used as the compression motor. The synchro-motor is configured to be capable of forward and reverse rotation by the motor itself, and when the force applied to the motor is greater than or equal to a predetermined value when the motor rotates in one direction, the rotation of the motor is converted to the other direction. .
At this time, the force applied to the motor is a resistance force (torque: torque) generated when the pressure member 150 presses the dust, and when the resistance force reaches a set value, the direction of rotation of the motor changes. It is configured to be.
Since the synchronized motor is generally known in the motor art, a detailed description thereof will be omitted. However, it is one of the technical ideas of the present invention to enable the reverse rotation of the compression motor by the synchronized motor.
In addition, even when the pressing member 150 is rotated to reach a peak that can no longer rotate while compressing the dust, the pressing member 150 may be configured to continuously press the dust for a predetermined time. Here, the peak that the pressing member 150 cannot rotate refers to when the resistance reaches a set value.
When the resistance reaches a set value, the current applied to the motor is suddenly increased. When the current detection unit (not shown) detects a change in current and transmits the change to the controller 80, the controller 80 blocks the current applied to the motor for a predetermined time.
Therefore, the pressing member 150 is maintained in a state in which dust is compressed. In addition, when a predetermined time passes while the compression motor is stopped, power is again applied to the compression motor so that the pressing member 150 may be rotated.
At this time, since the resistance time when the power applied to the compression motor reaches the set value, when the compression motor is driven again, the direction of rotation of the compression motor will be the opposite direction before the power off.
In addition, the compression motor 161 preferably continuously rotates the pressing member 150 forward / reverse at the same angular speed so that dust can be easily compressed.
On the other hand, when the dust collecting container 120 is not mounted to the mounting portion 5, the magnetism of the magnetic member 165 is not detected by the mounting detection unit 174.
In this state, when the operation signal of the suction motor 320 is input from the operation signal input unit 70, the controller 80 controls the signal generator 180 to generate a dust collecting container-free signal.
In addition, when the filter unit 240 is not mounted to the filter mounting unit 210, the controller 80 controls the signal generator 180 to generate a non-connected tube signal.
On the other hand, when the magnetism of the magnetic member 165 is sensed by the mounting detector 174 and the mounting of the filter unit 240 is detected by the filter detector 270, the controller 80 The amount of dust stored in the dust collecting container 120 is determined using the motion information of the pressing member 150 detected by the motion detecting unit 176. Then, the amount of dust stored in the dust container 120 is displayed on the dust amount display unit 190. In addition, when the controller 80 determines that more than a reference amount of dust is stored, the signal generator 180 causes the dust emptying signal to be generated.
In this case, the signal generated by the signal generator 180 may be an audio signal or a visual signal, or may be a vibration transmitted directly to the user. As the signal generator 180, a speaker, an LED, a vibration motor, and the like may be used.
The signal generated by the signal generator 180 may be set differently from a signal of dust emptying, a signal of not collecting a dust container, and a signal of not mounting a filter unit.
In addition, the signal generator 180 includes a first signal generator for generating a signal without a dust collection container, a second signal generator for generating a dust empty signal, and a third signal generator for generating a signal without a filter unit; Can be.
10 is a view illustrating a process in which dust is compressed in the dust collecting container.
Referring to FIG. 10, the pressing member 150 is bidirectionally rotated inside the dust collecting container 120. When the pressing member 150 is positioned at a point that is 1/2 of the maximum rotation angle of the pressing member 150 in the dust collecting container 120, the magnetic member 165 is provided in the motion detecting unit 176. Your magnetism is detected.
Here, the position of the pressing member 165 when the motion detecting unit 176 detects the magnetism of the magnetic member 165 is referred to as a “reference position” for convenience of description.
In addition, in the controller 80, the time required for the pressing member 150 to return to the reference position again after rotating the clockwise direction, for example, from the reference position (TD1: first reciprocating time) and the pressing member 150. The time (TD2: second round trip time) required for returning from the reference position to the reference position after the counterclockwise rotation, for example, is sensed.
As the amount of dust compressed by the pressing member 150 increases, the first round trip time TD1 and the second round trip time TD2 are gradually shortened. In the present exemplary embodiment, when any one of the first round trip time TD1 and the second round trip time TD2 reaches a predetermined reference time, it is determined that the dust is sufficiently accumulated in the dust collecting container 120, so that a dust emptying signal is generated. To be generated.
Hereinafter, the operation of the vacuum cleaner according to the present embodiment will be described.
11 is a view showing the air flow in the vacuum cleaner under the general cleaning mode, FIG. 12 is a view showing the air flow in the vacuum cleaner under the filter cleaning mode, Figure 13 is a control method of the vacuum cleaner according to the present embodiment It is a flowchart explaining.
11 and 12, solid lines represent air and dotted lines represent dust.
11 and 13, the general cleaning mode is selected by the mode selection unit 72. Then, it is determined whether the suction motor operation signal is input through the operation signal input unit 70 (S10). When it is determined that the suction motor operation signal is input, it is determined whether the dust collecting container 120 is mounted (S11).
When the dust collecting container 120 is not mounted to the mounting unit 5, the magnetism of the magnetic member 165 is not detected by the mounting detecting unit 174. In this case, the controller 80 controls the signal generator 180 to generate an unmounted signal of the dust collecting container 120 (S12). In addition, the suction motor 320 maintains a stopped state.
When the suction motor operation signal is input in the state in which the dust collecting container 120 is not mounted as described above, it is notified to the outside, thereby preventing unnecessary operation of the suction motor.
On the other hand, when the magnetism is sensed by the mounting detecting unit 174 and determines that the dust collecting container 120 is mounted, it is determined whether the filter unit 240 is mounted on the filter mounting unit 210 (S13). .
When the mounting signal of the filter unit 240 is not transmitted from the filter detector 270 to the controller 80 (or the non-connector signal is transmitted from the filter detector 270 to the controller 80). In this case, the controller 80 controls the signal generator 180 to generate a filter unit-free signal (S14).
On the other hand, when the mounting of the dust collecting container 120 and the mounting of the filter unit 240 is detected, the controller 80 causes the suction motor 320 to be turned on according to the suction power selected by the user (S15). ).
When the suction motor 320 is turned on, air containing dust is sucked into the guide tube 60 by the suction force. The air containing the dust sucked into the guide tube 60 is sucked into the dust separating unit 110 through the suction pipe 122 and the suction port 112.
At this time, in the general cleaning mode as described above, the discharge duct 115 is kept closed.
The air sucked into the dust separator 110 is separated from the dust during the spiral flow along the inner circumferential surface of the dust separator 110. The separated dust is moved to the dust collecting container 120 through the dust discharge unit 115. On the other hand, the air is discharged to the outside of the dust separation unit 110 through the air outlet 114 after passing through the filter member 116. In addition, the air discharged to the outside of the dust separation unit 110 is introduced into the purification apparatus 20 through the inlet 211 of the purification apparatus 20. The air introduced into the purification device 20 passes through the first filter 246 located in the upper space 214a of the filter mounting unit 210. The air passing through the first filter 246 is discharged to the outside of the purifying device 20 through the outlet 212 of the filter mounting unit 210. Air discharged to the outside of the purifying device 20 is introduced into the motor housing 310 through the inlet 312 of the motor housing 310, and after passing through the suction motor 320, It is discharged to the outside.
As the dust in the air is separated as described above and the dust is stored in the dust collecting container 120, the pressing member 150 compresses the dust stored in the dust collecting container 120.
That is, the controller 80 drives the compression motor 161 to compress the dust stored in the dust collecting container 120 after the suction motor 320 is operated (S16).
Here, although the compression motor 161 is described as being operated after the suction motor 320 is operated in this embodiment, the suction motor 320 and the compression motor 161 may be operated simultaneously.
In step S16, when the compression motor 161 is driven, the driving gear 162 coupled with the compression motor 161 is rotated. When the driving gear 162 is rotated, the driven gear 164 meshed with the driving gear 162 is rotated. As the driven gear 164 is rotated, the pressing member 150 rotates to compress dust.
At this time, the controller 80 checks whether the pressing member 150 is located at a reference position (S17).
Since the present exemplary embodiment measures the first reciprocating time and the second reciprocating time (or the moving range of the urging member) of the urging member 150 based on the reference position of the urging member 150, the urging member ( In the initial operation of 150, it is necessary to confirm that the pressing member 150 is in the reference position.
The time when the pressing member 150 is positioned at the reference position for the first time is a time when the motion detecting unit 176 detects the magnetism of the magnetic member 165 for the first time during the initial operation of the compression motor 161. .
Accordingly, the controller 80 may determine whether the movement detector 176 first detects the magnetism of the magnetic member 165 for the first round trip time TD1 or the second of the pressing member 150. The round trip time TD2 is measured (S18). For example, the controller 80 includes a counter unit for measuring the round trip time.
Here, as the amount of dust compressed in the dust collecting container 120 by the pressing member 150 increases, the left and right reciprocating rotation time of the pressing member 150 is shortened.
The controller 80 determines the first round trip time TD1 and the second round trip time TD2 of the pressing member 150 through the motion detector 176, and determines the first round trip time TD1 or It is determined whether the second round trip time TD2 has reached a predetermined reference time (S19). Here, the predetermined reference time is a time set by the designer in the controller 80 itself, which is a basis for determining that a predetermined amount or more of dust has accumulated in the dust collecting container 120. The reference time is obtained by a designer repeating the test several times and depends on the capacity of the vacuum cleaner.
In the present embodiment, when either the first round trip time TD1 or the second round trip time TD2 reaches the reference time (when the reference time is less than or equal to), the amount of dust is required (dust emptying is required). Amount of money). However, when the first round trip time TD1 and the second round trip time TD2 both reach a predetermined reference time, it may be determined that the amount of dust has reached a predetermined amount (a quantity required for dust emptying). .
As a result of the determination in step S19, when any one of the first round trip time TD1 and the second round trip time TD2 is longer than the reference time, the process returns to step S18 to perform the previous process. On the other hand, when the first round trip time TD1 or the second round trip time TD2 reaches the reference time, the controller 80 controls the signal generator 180 to generate a dust empty signal (S20). .
In addition, the control unit 80 turns off the suction motor 320 so that dust is no longer sucked (S21). Here, the reason for forcibly stopping the suction motor 320 is that if the dust suction operation is forcibly continued when the amount of dust accumulated in the dust collecting container 120 exceeds a predetermined amount, the dust suction efficiency is lowered. This is because the suction motor 320 may be overloaded.
In addition, the control unit 80 causes the compression motor 161 to be turned off (S22).
Meanwhile, the filter cleaning mode will be described with reference to FIG. 12.
When the filter cleaning mode is selected, the filter cleaning mode is selected in the first case in which the filter cleaning mode is selected during the normal cleaning mode, and in a state in which the normal cleaning mode is completed and the suction motor 320 is stopped (stop mode). It may be divided into a second case and a third case in which the filter cleaning mode is selected before the user selects the normal cleaning mode.
In the first case, since the suction motor 320 is operating, the suction motor 320 is first stopped, and after the rotation of the filter unit 240 and the opening of the discharge duct 215 are completed, the suction motor ( 320 is reactivated. At this time, when the suction motor 320 is stopped, the compression motor 161 is stopped together, and when the suction motor 320 is restarted, the compression motor 161 is also restarted together.
In contrast, in the first case, the filter unit 240 may be rotated and the discharge duct 215 may be opened while the suction motor 320 is operating. At this time, the compression motor 161 is also maintained in an operating state. When the discharge duct 215 is opened and a predetermined time elapses, the discharge duct 215 is closed.
On the other hand, in the second and third cases, since the suction motor 320 is stopped, the suction motor 320 operates after the rotation of the filter unit 240 and the opening of the discharge duct 215 are completed. Can be.
Hereinafter, as an example, a case in which the filter cleaning mode is selected while the suction motor 320 is stopped will be described.
When the filter cleaning mode is selected by the mode selection unit 72 in a state where the filter unit 240 is detected by the filter detection unit 270, the filter unit 240 is operated by the rotating device 40. It is rotated in one direction. At the same time, the discharge duct 215 is opened by the rotation of the opening and closing member 510. When the discharge duct 215 is opened, the discharge duct 215 and the guide tube 60 is in communication.
When the magnetism of the magnetic member 244 is detected by the rotation detecting unit 260 while the filter unit 240 is rotated in one direction, the rotation detecting unit 260 stops the control unit 80. Send the signal. Then, the operation of the rotary motor 410 is stopped by the controller 80. Here, as described above, the state in which the magnetism of the magnetic member 244 is detected by the rotation detecting unit 260 is that the filter unit 240 is rotated 180 degrees.
When the filter unit 240 is rotated 180 degrees, the second filter 247 is positioned in the upper space 214a of the filter mounting unit 210 and the lower space 214b of the filter mounting unit 210 is located. The first filter 246 is positioned. Here, the lower space 214b is a space in which a filter (first filter) to be cleaned is located, so the lower space may be referred to as a cleaning space.
After the rotation of the filter unit 240 and the opening of the discharge duct 215 are completed, the suction motor 320 is operated to generate a suction force. At this time, the compression motor 161 operates in conjunction with the operation of the suction motor 320.
When the suction motor 320 is operated, the lower space 214b of the filter mounting portion communicates with the guide tube 60 by the discharge duct 215, so that the suction force of the suction motor 320 is the filter mounting portion. It acts on the lower space 214b of 210.
Then, the dust accumulated in the first filter 246 is separated from the first filter 246 by the suction force. The separated dust is introduced into the guide tube 60 through the discharge duct 215 together with the air in the lower space 214b.
The air introduced into the guide tube 60 flows through the dust separation device 10 and passes through the filter located in the upper space 214a and then flows into the motor housing 310. On the other hand, some of the dust separated from the first filter 246 is stored in the dust collecting container 120, the other part is moved to the second filter 247 side. In addition, the dust stored in the dust collecting container 120 is compressed by the pressing member 150.
At this time, the opening and closing member 510 blocks the flow path of the guide tube 60 as shown in FIG. 12, so that air outside the cleaner body is not introduced into the guide tube 60.
In addition, during the filter cleaning mode, the controller 80 determines whether cleaning of the first filter 246 is completed. For example, it may be determined that the filter cleaning mode is completed when the operation time of the suction motor 320 reaches the reference time T1.
When it is determined that the filter cleaning mode is completed, the operation of the suction motor 320 is stopped. In addition, the opening / closing member 510 is rotated by the opening / closing motor 520 to close the discharge duct 215. In addition, when the pressing unit 514 presses the micro switch 530 while the open / close motor 520 is rotated, the operation of the open / close motor 520 is stopped by the controller 80.
According to this embodiment, since the dust accumulated in the filter unit 240 is automatically removed by the suction force of the suction motor 320, the user must separate the filter unit 240 from the cleaner body to clean the filter directly. Hassle is eliminated.
In addition, since the dust stored in the dust collecting container is automatically compressed by the pressing member, the dust collecting capacity of the dust collecting container can be maximized.
The spirit of the present embodiment is not limited to the above description and may further include the following contents.
The rotation of the filter unit (cleaning of the filter) is determined by the user's mode selection, but alternatively, the rotation of the filter unit may be determined according to the current value of the suction motor.
For example, when a lot of dust accumulates in the first filter 246 located in the upper space 214a, air does not easily pass through the first filter, thereby increasing the current of the suction motor. Therefore, when the current of the suction motor reaches a predetermined value, the filter unit can be rotated.
