TWI594721B - Vacuum cleaner - Google Patents

Description

Vacuum cleaner

The invention discloses a vacuum cleaner.

Generally, a vacuum cleaner is a device that sucks dust-containing air and filters dust in a main body by suction generated by a suction motor installed inside the main body.

Vacuum cleaners are divided into manual vacuum cleaners and automatic vacuum cleaners. The manual vacuum cleaner is a vacuum cleaner that the user directly performs the cleaning operation, and the automatic vacuum cleaner is a vacuum cleaner that performs the cleaning operation while the vacuum cleaner itself is traveling.

The manual vacuum cleaner can be divided into a cylinder type and an upright type. In the cartridge type manual vacuum cleaner, a nozzle is separately provided from the main body and connected to the main body through a connecting pipe; in the upright manual vacuum cleaner, the suction nozzle is coupled to the main body.

In the Korean Patent Publication No. 10-2006-0118796 (published on Nov. 24, 2006), which is the first prior art document, a power cord take-out port of a vacuum cleaner is disclosed.

In the first prior art document, a reel assembly is disposed inside a main body, and the main body can receive power by connecting a power cord to a power outlet.

In the case of the first prior art document, since the cleaner receives power through the reel assembly, when the cleaning operation is performed using the cleaner, the cleaner can only be moved by the length of the electric wire wound on the reel assembly, and the cleaning operation is subjected to the cleaning operation. limit.

A vacuum cleaner is disclosed in Korean Patent Publication No. 10-2008-0105847 (published on Dec. 04, 2008).

In the second prior art document, a body includes a battery, a battery charger, and a reel assembly that are separately coupled to the main body.

The vacuum cleaner can charge the battery by connecting the main body to the reel assembly and providing commercial power, and when the reel assembly is separated from the main body, it will operate by the DC power provided by the battery.

In the case of this second prior art document, when the vacuum cleaner is self-powered When the power provided by the pool is operated, the use time is limited due to the limited charging capacity of the battery, and in particular, when the vacuum cleaner operates at the maximum suction strength, there is a problem that the number of operating hours is significantly lowered.

The present invention relates to a vacuum cleaner which can increase the use time by changing the amount of suction strength according to a user's choice, and can satisfy various experiences of the user.

In order to achieve the above object, the vacuum cleaner of the present embodiment can select the suction strength of the suction motor, and can change the standard output of the suction motor corresponding to the suction strength of the suction motor.

In an example, the vacuum cleaner can include a user interface that selects the suction strength of the suction motor. Further, the vacuum cleaner may include: a mode selection portion for changing a standard output of the suction motor corresponding to the suction strength of the suction motor.

Also, a controller of the present embodiment can control the pickup motor based on the selected mode and the suction strength selected on the selected mode.

Any one of the first mode and the second mode can be selected by using the mode selection portion of the embodiment.

In an embodiment, in the first mode, a first mode standard output of the pickup motor may be maintained during a first standard time corresponding to a specific suction intensity selected by the user interface, and from the first Standard time to a second standard time, the first mode standard output may be reduced until the first mode standard output reaches a first mode limit output, and after the second standard time is passed, the first mode limit output may be maintained .

Moreover, in the second mode, a second mode standard output of the suction motor may be maintained during the first standard time corresponding to the specific suction intensity selected by the user interface, and from the first standard time to one The third mode standard time may be decreased until the second mode standard output reaches a second mode limit output, and the second mode limit output may be maintained after the third standard time is passed.

In this case, the first mode standard output can be greater than the second mode standard output. Additionally, the third standard time can be greater than the second standard time.

In addition, the first mode standard output may include: a first standard output; a second standard output, the second standard output is smaller than the first standard output in an output specification; And a third standard output, the third standard output is smaller than the second standard output in the output specification, and can generate strong, medium, and weak suction.

In addition, the second mode standard output may include: a fourth standard output, the fourth standard output is smaller than the first standard output in an output specification; and a fifth standard output, the fifth standard output is smaller than the output specification a second standard output; and a sixth standard output that is smaller than the third standard output in an output specification and that is capable of producing a strong, medium, and weak intensity that is weaker than the first mode standard output suction.

Further, when the output of the pickup motor is determined by the mode selection unit as the first mode standard output or the second mode standard output, when the output of the pickup motor is determined as the first mode standard output The user interface can select any standard output of the first standard output to the third standard output, and when the output of the pickup motor is determined to be the second mode standard output, the user interface can be selected. The fourth standard outputs to any of the standard outputs of the sixth standard output.

Further, when a specific suction strength is selected in the user interface, the controller may control an output of the suction motor to maintain the first corresponding to the specific suction strength of the suction motor during the first standard time A mode standard output or a second mode standard output.

Additionally, the vacuum cleaner can further include: a battery assembly for providing power to the suction motor.

The controller can control an input current of the suction motor to enable the suction motor to operate using the first mode standard output or the second mode standard output, and when the voltage of the battery component decreases, it can increase the voltage The corresponding input current of the suction motor is lowered.

The controller may stop controlling the input current of the pickup motor when the first standard time passes, and the controller may control the first mode standard output of the suction motor when the first mode limit output reaches the first mode limit output The output of the motor is drawn such that the first mode standard output of the pickup motor maintains the first mode limit output.

On the other hand, when passing the first standard time, the controller may stop controlling the input current of the suction motor, and when the second mode standard output of the suction motor reaches the second mode limit output, the controller The output of the suction motor can be controlled to The second mode standard output maintains the second mode limit output.

The controller can control the input current of the pickup motor to maintain the output of the pickup motor at the first mode limit output or the second mode limit output.

The utility model may further include a vacuum cleaner body, a suction portion, and a handle disposed on the path connecting the vacuum cleaner body and the suction portion, and the user interface may be disposed in the handle, and the mode selection portion may be disposed at the handle In the vacuum cleaner body.

The mode selection unit can be a switch.

According to the proposed invention, when the noise generated during the operation of the suction motor is large but the cleaning is performed in a short time using a strong suction force, the user can select the first mode by using the mode selection portion. On the other hand, when the noise is low and cleaning is performed for a long time using an appropriate suction force, the user can select the second mode by using the mode selection portion.

Therefore, according to the present embodiment, since the first mode or the second mode can be selected according to the user's experience, there is an advantage that various experiences of the user are satisfied.

1‧‧‧Vacuum cleaner

10‧‧‧ Vacuum cleaner body

20‧‧‧ suction device

21‧‧‧Drawing Department

22‧‧‧Connector/handle

23‧‧‧Connecting/suction hose

24‧‧‧Connecting/extension tube

30‧‧‧Power cord

31‧‧‧ plug

32‧‧‧Wire connector

102‧‧‧ body connector

105‧‧‧ Wheels

110‧‧‧dust collector

120‧‧‧Battery components

121‧‧‧ battery unit

140‧‧‧Battery Charger

141‧‧‧Transformer

142‧‧‧AC-DC converter

150‧‧‧ Controller

160‧‧‧ suction motor

190‧‧‧User interface

191‧‧‧Sliding parts

192‧‧‧Mode Selection Department

The embodiments will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements, in which: FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment, and FIG. 2 is a vacuum cleaner according to the embodiment. 3 is a block diagram showing the structure of the vacuum cleaner according to the embodiment; FIG. 4 is a perspective view of the handle according to the embodiment; and FIG. 5 is a schematic view showing the output of the suction motor in the first mode; And Figure 6 is a schematic diagram illustrating the output of the pickup motor in the second mode.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which

In the following detailed description of the preferred embodiments, reference to the claims The embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is understood that other embodiments can be used without departing from the invention. In the case of spirit or scope, logical structures, mechanical, electrical, and chemical changes can be made. Descriptions of certain information well known to those skilled in the art may be omitted in order to avoid obscuring the details to those skilled in the art. Therefore, the following detailed description is not to be taken in a limiting sense.

Also, in the description of the embodiments, when describing elements of the present invention, terms such as first, second, A, B, (a), (b), and the like may be used herein. Each of these terms is not intended to define the nature, order, or order of the corresponding elements, but only to distinguish the corresponding elements from other elements. It should be noted that if a component is described as "connected", "coupled" or "coupled" to another component, the former can be directly "connected", "coupled" or "coupled" to the latter or via The other component is "connected", "coupled" or "coupled" to the latter.

1 is a perspective view of a vacuum cleaner according to an embodiment, FIG. 2 is an exploded perspective view of the vacuum cleaner according to the embodiment, and FIG. 3 is a block diagram showing the structure of the vacuum cleaner according to the embodiment, and FIG. The figure is a perspective view of the handle according to this embodiment.

Referring to FIGS. 1 to 4, the vacuum cleaner 1 according to the embodiment may include: a cleaner body 10 having a suction motor 160 for generating suction; and a suction device 20 communicating with the cleaner body 10 and containing The dusty air is introduced into the cleaner body 10.

Although the tubular vacuum cleaner is disclosed as an example in FIG. 1, the spirit of the present invention is not limited thereto, and it is applicable not only to an upright vacuum cleaner that is rotatably coupled to the suction portion 21 by the cleaner body 10, but also applies. For stick vacuum cleaners.

The suction device 20 is in communication with the cleaner body 10, and may include: a suction portion 21 for sucking dust and air on the bottom surface as an example of the surface to be cleaned; and connection portions 22, 23 and 24 for the suction portion 21 Connected to the cleaner body 10.

The connecting portions 22, 23, and 24 may include an extension tube 24 connected to the suction portion 21, a handle 22 connected to the extension tube 24, and a suction hose 23 connecting the handle 22 to the cleaner body 10.

Also, the vacuum cleaner 1 may further include: a dust separator (not shown) that separates air and dust sucked from the suction device 20 from each other; and a dust collector 110 that stores dust separated in the dust separator. The dust collector 110 may be detachably mounted to the cleaner body 10. The dust separator is manufactured as a separate component from the dust collector 110, or may be fabricated as a module with the dust collector 110.

The vacuum cleaner 1 may include: a controller 150 for controlling the operation of the suction motor 160; a battery assembly 120 for supplying power for operating the suction motor 160; a battery charger 140 for charging the battery assembly 120; The power cord 30 is detachably coupled to the cleaner body 10 and is used to supply a commercial power source to the cleaner body 10.

The power cord 30 may include a plug 31 connected to the socket, and a wire connector 32 connected to the cleaner body 10. Also, the cleaner body 10 may include a body connector 102 to which the wire connector 32 is coupled.

A plurality of wheels 105 may be disposed on both sides of the cleaner body 10, while the body connector 102 is not limited, but it may be located on one of the wheels 105.

The battery assembly 120 can include a plurality of battery cells 121. That is, in the present specification, a group of a plurality of battery cells 121 may be referred to as a battery pack.

The plurality of battery cells 121 can be a battery that can be charged and discharged. The maximum DC voltage charged in all of the plurality of battery cells 121 may have a value exceeding 42.4V. In an example, the maximum charging voltage of battery assembly 120 can be greater than or equal to 84.8V.

The battery charger 140 performs rectification and filtering operations to receive and convert the commercial AC voltage into the form of a DC voltage. And, the battery charger 140 applies the converted DC voltage to the battery assembly 120. In an example, battery charger 140 converts (also applies pressure) a commercial AC voltage of 220V to a DC voltage in excess of 42.4V and provides to battery assembly 120.

The battery charger 140 may include a transformer 141 for converting an input AC voltage, and an AC-DC converter 142 for converting an AC voltage output from the transformer 141 into a DC voltage. At this time, the DC voltage output from the AC-DC converter 142 may be greater than 42.4V.

As another example, the transformer 141 can be converted from a DC voltage output from the AC-DC converter 142. In this case, the DC voltage output from the transformer 141 may be greater than 42.4V.

Also, as another example, the battery charger 140 does not have the transformer 141, and the AC-DC converter 142 may have a circuit for preventing the DC voltage from being converted into an AC voltage. That is, the AC-DC converter 142 can be a stand-alone converter. In the embodiment, since a conventional structure can be used in the AC-DC converter 142, a detailed description thereof can be omitted.

In an embodiment, the suction motor 160 can be a BLDC motor as an example. Also, the maximum output of the suction motor 160 may be 600 W or more as an example.

When the voltage charged in the battery pack 120 is 42.4 V or less, since the current must be at least 14.15 A to operate the high output pickup motor 160, the structure of the circuit required for driving the pickup motor 160 is complicated. problem.

However, according to the embodiment, since the maximum voltage charged in the battery pack 120 is 84.8 V or more, the current required to operate the suction motor 160 may be substantially less than 7.1 A, and therefore, the structure of the circuit required to drive the suction motor 160 has The advantage of simplification.

According to the embodiment, since the DC voltage exceeding 42.4 V is output from the battery charger 140, and the maximum charging voltage of the battery assembly 120 is 84.8 V or more, the pickup motor 160 can emit a high output, and therefore, the suction force of the vacuum cleaner 1 is increased. And has the advantage of improving cleaning performance.

Further, the power cord 30 can be connected to the vacuum cleaner 1 only when the battery pack 120 is charged, and when the vacuum cord 1 is cleaned by using the vacuum cleaner 1, since the power cord 30 can be used separately from the vacuum cleaner 1, the free movement of the vacuum cleaner 1 is improved. The advantage of the degree.

That is, since the vacuum cleaner 1 receives power from the battery pack 120 without having to have a reel, the moving distance of the vacuum cleaner 1 is not limited, and during the movement of the vacuum cleaner 1, since it is wound around the reel There is no need to move the wires or clean the wires, so it has the advantage of smooth movement.

Meanwhile, the vacuum cleaner 1 may further include a user interface 190. The user interface 190 can accept operational commands from the vacuum cleaner 1.

The user interface 190 can additionally display operational information or status information of the vacuum cleaner 1.

The user interface 190 can be disposed in at least one of the handle 22 and the cleaner body 10. The user interface 190 may be provided in an integral form of the input portion and the display portion, or may include a separate input portion and display portion. The display portion may be located at one side of the body connector 102 when the display portion is disposed outside the input portion.

Fig. 4 is a perspective view of the handle according to the embodiment.

By using the user interface 190, the power-on option, the cleaning mode, and the strength of the suction of the vacuum cleaner 1 can be selected.

The user interface 190 can include: a sliding member 191 for the user to operate And a variable resistance portion (not shown) whose resistance varies with the position of the sliding member 191. The sliding member 191 can be coupled to be slidable in the handle 22.

By the sliding action of the sliding member 191, the operating state of the vacuum cleaner 1 can be simultaneously controlled when the power of the vacuum cleaner 1 is turned off or on. When the sliding member 191 is in the closed position, the resistance value of the variable resistance portion may be 0, and when the sliding member 191 is in the open position (position other than the closed position), (strong, medium, and The weak resistance portion may have a resistance value greater than zero.

Since the structure of the sliding member 191 and the variable resistance portion for detecting the position of the sliding member 191 can be realized by a conventional technique, a detailed description thereof will be omitted.

The strength of the suction of the suction motor 160 can be adjusted to a plurality of stages by the sliding member 191, and in the embodiment, an example in which the strength of the suction of the suction motor 160 can be adjusted to be about three stages of strong, medium, and weak will be described.

The embodiment has been described as selecting the strength and opening/closing of the suction of the vacuum cleaner 1 by using the sliding member 191, but conversely, the strength and opening/closing of the suction of the vacuum cleaner 1 can also be selected by using a plurality of buttons.

The cleaner body 10 may further include a mode selection portion 192 that may select a criterion for changing the strength of the suction of the suction motor 160.

In the present embodiment, the first mode and the second mode can be selected by using the mode selection section 192.

In an example, the mode selection portion 192 may be disposed on the rear side of the cleaner body 10. That is, the mode selection portion 192 may be disposed on the rear side of one of the wheels 105 in the cleaner body 10.

As another example, the mode selection portion 192 may be disposed in the handle 22.

In an example, mode select 192 can be a mechanically operated switch. Since the first mode can be selected when the switch is turned on, and the second mode can be selected when the switch is turned off, the reverse is also possible. In the present invention, the structure and method of mode selection are not limited.

The standard of suction (the output standard of the suction motor 160) is different from the standard of suction when the intensity of the suction in the first mode is strong, medium, and weak. When the strength of the suction is strong, medium, and weak in the second mode. time.

The standard difference between the suction forces in these modes will be described below.

Fig. 5 is a view for explaining the output of the suction motor in the first mode, and Fig. 6 is a view for explaining the output of the suction motor in the second mode.

Referring to Figures 5 and 6, in the first mode, when the strength of the suction is strong, medium, and weak, the standard outputs of the suction motor 160 corresponding to the intensity of each suction are P1, P2, and P3 ( The unit of P1 to P3 is Watts (W)). P1 can be defined as a first standard output, P2 can be defined as a second standard output, and P3 can be defined as a third standard output. In addition, a first mode standard output can be defined by integrating the first standard output, the second standard output, and the third standard output.

On the other hand, in the second mode, when the intensity of the suction is strong, medium, and weak, the standard output corresponding to the intensity of each suction may be P4, P5, and P6 (the units of P4 to P6 are watts (W). )). P4 can be defined as a fourth standard output, P5 can be defined as a fifth standard output, and P6 can be defined as a sixth standard output. In addition, a second mode standard output can be defined by integrating the fourth standard output, the fifth standard output, and the sixth standard output.

At this time, P4 is smaller than P1, P5 is smaller than P2, and P6 may be equal to or smaller than P3. There is no limitation except that P4 may be the same as or different from P2, and P5 may be the same as or different from P3.

When the user selects the strength as the suction force when the first mode is selected by the use mode selecting portion 192, the standard output of the suction motor 160 corresponding to the strong suction force of the suction motor 160 is P1. At this time, the standard output of the suction motor 160 may be the maximum output among the suction strengths corresponding to the suction motor 160.

Hereinafter, description will be made assuming that the vacuum cleaner 1 is turned on in a state where the battery pack 120 is fully charged.

In the first mode, when a strong intensity as suction is selected, the controller 150 may adjust the output of the suction motor 160 such that the output of the suction motor 160 maintains the first standard output P1 during the first standard time T1.

At this time, in the case where the strength as the suction force is selected, when the voltage of the battery assembly 120 is equal to or greater than the standard voltage, the controller 150 can adjust the output of the suction motor 160 so that the output of the suction motor 160 is maintained during the standard time. The first standard output is P1.

Generally, as the operating time of the battery assembly 120 increases, the voltage of the battery assembly 120 decreases. In the case where the voltage of the battery assembly 120 is equal to or greater than the standard voltage, the controller 150 The current applied to the pickup motor 160 can be adjusted such that the output of the pickup motor 160 maintains the first standard output P1 during the first standard time T1. In an example, controller 150 may increase the input current to draw motor 160.

After the output of the suction motor is maintained at the first standard output P1 during the first standard time T1, the controller 150 may stop controlling the input current.

Then, as the usage time of the battery assembly 120 increases, the voltage of the battery assembly 120 decreases, and the output of the suction motor 160 decreases due to the decrease in the voltage of the battery assembly 120.

The controller 150 determines whether the output of the suction motor 160 reaches the first limit output PC1. When the output of the suction motor 160 reaches the first limit output PC1, the controller 150 can adjust the output of the suction motor 160 to maintain the output of the suction motor 160. The first limit is output to PC1.

That is, the controller 150 can control the output of the suction motor 160 by adjusting the input current of the suction motor 160.

Similarly, when the voltage of the battery assembly 120 reaches the limit voltage, the controller 150 stops the operation of the suction motor 160, and can be executed to cause the required charging information of the battery assembly 120 to be generated in the user interface 190 or the notification portion not shown. in.

Here, in the first mode, when the intensity strong as the suction force is selected, the time required until the output of the suction motor 160 reaches the first limit output PC1 may be the second standard time T2.

Meanwhile, in the first mode, when medium or weak strength is selected as the suction force, the controller 150 may control the output of the suction motor 160 such that the output of the suction motor 160 maintains the second standard output P2 during the first standard time T1. Or the third standard output P3.

The controller 150 may stop the control of the input current after the output of the suction motor 160 remains at the second standard output P2 or the third standard output P3 during the first standard time T1. Then, the output of the suction motor 160 is lowered due to the decrease in the voltage of the battery assembly 120.

When the medium is selected as the suction strength, the controller 150 determines whether the output of the suction motor 160 reaches the second limit output PC2, and when the output of the suction motor 160 reaches the second limit output PC2, the controller 150 can control the suction motor 160. The output is such that the output of the pickup motor 160 maintains the second limit output PC2.

When the weak intensity is selected as the suction force, the controller determines whether the output of the suction motor 160 reaches the third limit output PC3, and when the output of the suction motor 160 reaches the third limit output When the PC 3 is exited, the controller 150 can control the output of the pickup motor 160 to maintain the output of the pickup motor 160 at the third limit output PC3.

At this time, the output outputs may be different from each other according to the intensity of the suction force, and the second limit output PC2 may be smaller than the first limit output PC1, and the third limit output PC3 may be smaller than the second limit output PC2. The first mode limit output can be defined by integrating the first limit output PC1, the second limit output PC2, and the third limit output PC3.

Also, in the present invention, it is understood that when the suction motor 160 is stopped by the controller 150, the operation end time of the suction motor 160 may be delayed as the strength of the suction force is lowered. That is, the smaller the strength of the suction, the longer the operation time of the suction motor 160.

At the same time, the user can select the second mode by using the mode selection section 192.

In the second mode, when the strength strong as suction is selected, the criterion of the suction of the suction motor 160 is set to the fourth standard output P4. As described above, the fourth standard output P4 is smaller than the first standard output P1.

In the second mode, when strong as the suction strength is selected, the controller 150 may control the output of the suction motor 160 such that the output of the suction motor 160 maintains the fourth standard output P4 during the first standard time T1.

After the output of the pickup motor 160 maintains the fourth standard output P4 during the first standard time T1, the controller 150 may stop the control of the input current. Then, the output of the suction motor 160 is lowered due to the voltage drop of the battery assembly 120.

The controller 150 determines whether the output of the suction motor 160 reaches the fourth limit output PC4, and when the output of the suction motor 160 reaches the fourth limit output PC4, the controller 150 can control the output of the suction motor 160 to cause the output of the suction motor 160. Keep the fourth limit output PC4. That is, the controller 150 can control the output of the suction motor 160 by controlling the input current of the suction motor 160.

Similarly, when the voltage of the battery assembly 120 reaches the limit voltage, the controller 150 stops the operation of the suction motor 160, and can be executed to cause the required charging information of the battery assembly 120 to be generated in the user interface 190 or the notification portion not shown. in.

In the second mode, when medium or weak strength is selected as the suction force, the controller 150 may control the output of the suction motor 160 such that the output of the suction motor 160 maintains the fifth standard output P5 or the first during the first standard time T1. Six standard output P6.

After the output of the suction motor 160 maintains the fifth standard output P5 or the sixth standard output P6 during the first standard time T1, the controller 150 may stop the control of the input current. Then, the output of the suction motor 160 is lowered due to the decrease in the voltage of the battery assembly 120.

When the medium is selected as the suction strength, the controller 150 determines whether the output of the suction motor 160 reaches the fifth limit output PC5, and when the output of the suction motor 160 reaches the fifth limit output PC5, the controller 150 can control the suction motor 160. The output is such that the output of the pickup motor 160 maintains the fifth limit output PC5.

When the weak intensity is selected as the suction force, the controller 150 determines whether the output of the suction motor 160 reaches the sixth limit output PC6, and when the output of the suction motor 160 reaches the sixth limit output PC6, the controller 150 can control the suction motor 160. The output is such that the output of the pickup motor 160 maintains the sixth limit output PC6.

The second mode limit output can be defined by integrating the fourth limit output PC4, the fifth limit output PC5, and the sixth limit output PC6.

In summary, when the suction motor 160 is operated at the maximum suction intensity in the second mode, the maximum output of the suction motor 160 may be less than the maximum output of the suction motor 160 when the suction motor 160 is operated at the maximum suction intensity in the first mode. .

Further, when the suction motor 160 is operated at the selected minimum suction intensity in the second mode, the maximum output of the suction motor 160 may be equal to or less than when the suction motor 160 is operated at the selected minimum suction intensity in the first mode, the suction motor The maximum output of 160.

Referring to FIGS. 5 and 6, in the first mode, when the intensity as the suction force is selected, the time until the output of the pickup motor 160 reaches the first limit output PC1 is the second standard time T2, and In the second mode, when the intensity which is strong as the suction force is selected, the time until the output of the suction motor 160 reaches the first limit output PC1 is the third standard time T3. At this time, the third standard time T3 is greater than the second standard time T2.

At this time, the time period from the second standard time T2 to the operation end time may be the same as or similar to the time period from the third standard time T3 to the operation end time.

Therefore, the operation time when the suction motor 160 operates in the second mode is longer than the operation time when the suction motor 160 is operated in the first mode.

Of course, when the medium or weak intensity is selected as the suction force in the second mode, the time until the output of the suction motor 160 reaches the limit output is longer than in the first mode. When medium or weak is selected as the strength of the suction, until the output of the suction motor 160 reaches the time required to limit the output.

The user can select the first mode when the noise generated during the operation of the suction motor 160 is large but the cleaning is performed in a short time using strong suction.

On the other hand, when the noise is low and the cleaning is performed for a long time using an appropriate suction force, the user can select the second mode.

Similarly, the output of the pickup motor 160 can be determined as the first mode standard output or the second mode standard output by the mode selection portion 192.

In detail, when the first mode is selected by the mode selection portion 192, the output of the pickup motor 160 may be determined as the first mode standard output, and when the second mode is selected, the output of the pickup motor 160 may be determined to be the second Mode standard output.

Similarly, in the user interface 190, when the output of the rotary motor is determined to be the first mode standard output, any one of the first standard output to the third standard output may be selected, and when the output of the rotary motor is determined to be When the second mode standard output is output, any standard output of the fourth standard output to the sixth standard output may be selected.

Therefore, according to the present embodiment, since the first mode or the second mode can be selected according to the user's experience, there is an advantage that various experiences of the user are satisfied.

Although all of the elements of the embodiment are coupled in one unit or in a combined state, the invention is not limited to such an embodiment. That is, all of the elements can be selectively combined with each other without departing from the scope of the invention. In addition, when describing some elements including (or including or having) elements, it is understood that they may include (or include or have) only those elements, or may include (or include or have) other Components and those components. Unless otherwise specified herein, all terms including technical or scientific terms are given the meaning as understood by those skilled in the art. Similar terms defined in the dictionary, commonly used terms, need to be interpreted as meanings used in the technical context and are not to be interpreted as ideal or too formal, unless otherwise expressly stated herein.

While the embodiments have been described with reference to the embodiments of the embodiments of the invention, the invention may And details change. Therefore, the preferred embodiments should be considered in a descriptive sense only, not limiting, and the technical scope of the present invention is not Limited to the embodiment. In addition, the present invention is not limited by the detailed description of the present invention, but is defined by the scope of the appended claims, and all the differences within the scope will be construed as being included in the present invention.

102‧‧‧ body connector

120‧‧‧Battery components

121‧‧‧ battery unit

140‧‧‧Battery Charger

141‧‧‧Transformer

142‧‧‧AC-DC converter

150‧‧‧ Controller

160‧‧‧ suction motor

190‧‧‧User interface

192‧‧‧Mode Selection Department

Claims (15)

A vacuum cleaner comprising: a vacuum cleaner body having a suction motor for generating suction; a suction portion connected to the vacuum cleaner body for sucking air and dust; and a user interface for selecting the suction The intensity of the suction of the motor; a mode selection unit, which can select any one of the first mode and the second mode for changing a standard output of the suction motor corresponding to the suction strength of the suction motor; and a controller Controlling the pickup motor based on a mode selected by the mode selection portion and a suction strength selected at the user interface; wherein, in the first mode, corresponding to a specific suction strength selected by the user interface Maintaining a first mode standard output of the pickup motor during a first standard time, and from the first standard time to a second standard time, the first mode standard output is decreased until the first mode standard output reaches a first a mode limiting output, and after passing the second standard time, maintaining the first mode limit output; in the second mode Maintaining a second mode standard output of the pickup motor during the first standard time corresponding to the specific suction intensity selected by the user interface, and from the first standard time to a third standard time, The second mode standard output is decreased until the second mode standard output reaches a second mode limit output, and after the third standard time is passed, the second mode limit output is maintained; and the first mode standard output is greater than the second Mode standard output. The vacuum cleaner of claim 1, wherein the third standard time is greater than the second standard time. The vacuum cleaner of claim 1, wherein the first mode standard output comprises: a first standard output; a second standard output, the second standard output is less than the first standard output; Three standard outputs, the third standard output being less than the second standard output. The vacuum cleaner of claim 3, wherein the second mode standard output comprises: a fourth standard output, the fourth standard output being less than the first standard output; a fifth standard output, the fifth standard output being less than the second standard output; and a sixth standard output, the sixth standard output being less than the third standard output. The vacuum cleaner of claim 4, wherein the output of the suction motor is determined by the mode selection unit as the first mode standard output or the second mode standard output, in the user interface, Selecting the first standard output to any one of the standard output of the third standard output when the output of the pick-up motor is determined to be the first mode standard output, and when the output of the pick-up motor is determined to be the second mode standard When outputting, the fourth standard output is selected to any standard output of the sixth standard output. The vacuum cleaner of claim 1, wherein the controller controls the output of the suction motor to select the suction motor during the first standard time when the specific suction strength is selected in the user interface The first mode standard output or the second mode standard output corresponding to the specific suction intensity is maintained during the period. The vacuum cleaner of claim 6, further comprising: a battery assembly for supplying electric power to the suction motor. The vacuum cleaner of claim 7, wherein the controller controls an input current of the suction motor to operate the suction motor in the first mode standard output or the second mode standard output. The vacuum cleaner of claim 8, wherein the controller increases the input current of the suction motor corresponding to a voltage drop of the battery assembly. The vacuum cleaner of claim 8, wherein the controller stops controlling the input current of the suction motor after the first standard time passes; and the first mode standard output falls to the first mode The output is limited, and the second mode standard output is reduced to the second mode limit output. The vacuum cleaner of claim 10, wherein the controller controls an output of the pickup motor to maintain the first mode limit output when the first mode standard output falls to the first mode limit output And when the second mode standard output falls to the second mode limit output, the controller controls the output of the pickup motor to maintain the second mode limit output. A vacuum cleaner according to claim 11, wherein the controller controls the input current of the suction motor to maintain the output of the pickup motor at the first mode limit output or the second mode limit output. The vacuum cleaner of claim 1, further comprising: a handle disposed on a path connecting the vacuum cleaner body and the suction portion. A vacuum cleaner according to claim 13, wherein the user interface is provided in the handle, and the mode selection portion is provided in the cleaner body. The vacuum cleaner according to claim 1, wherein the mode selection unit is a switch.