TWI487498B - Suction cleaner and operation method thereof - Google Patents

Description

Vacuum cleaner and its operation method

The present invention relates to a vacuum cleaner and a method of operating the same, and more particularly to a hand-held vacuum cleaner and method of operating the same.

Because handheld vacuum cleaners have the advantages of small size, wireless, etc., handheld vacuum cleaners are useful in vehicles or other locations where there is no power outlet. However, because handheld vacuum cleaners use rechargeable batteries as their power source, the biggest drawback of handheld vacuum cleaners today is that their use time after charging is quite limited. In general, conventional hand-held vacuum cleaners can only be used for about ten minutes. After that, it will reduce its ability to vacuum due to insufficient power. In addition, traditional hand-held vacuum cleaners do not have the intelligence. In other words, the conventional hand-held vacuum cleaner only operates at a single rotation speed after being turned on, and cannot automatically adjust its suction force or rotation speed according to the state of use of the vacuum cleaner or the amount of dust suction.

In general, the main reason for the limited use time of the hand-held vacuum cleaner after charging is that when the hand-held vacuum cleaner is turned on, it is continuously in a high-speed vacuuming state, and the vacuum cleaner is in a high-speed powerful vacuuming state. Very power hungry. In other words, in the process of using the hand-held vacuum cleaner, even if the user has not started the vacuuming operation, or there is no dust or dirt at the place where the vacuum cleaner is in contact, the vacuum cleaner will always be in a strong vacuum state and continuously consume the rechargeable battery. In the power. As a result, the use time of the vacuum cleaner is quite limited.

The invention provides a vacuum cleaner and a method of operating the same, which can improve the use time of the vacuum cleaner after charging.

The invention provides a vacuum cleaner comprising a casing, a clamping portion, an impeller module, a first sensing device, a second sensing device, a third sensing device and a controller. One end of the outer casing has a suction port. The clamping portion is connected to the outer casing. The impeller module is located inside the outer casing and has a passage between the suction port and the impeller module. The first sensing device is disposed on the clamping portion. The second sensing device is disposed near the suction port. The third sensing device is mounted in the channel. The controller is electrically connected to the first, second and third sensing devices, and the controller drives the operating speed of the impeller module according to the sensing states of the first, second and third sensing devices.

The operation method of the above vacuum cleaner is as follows. After the vacuum cleaner is turned on, the controller remains energized to bring the vacuum cleaner into a standby state. When contacting the clamping portion of the vacuum cleaner, the controller drives the impeller module to operate at a first rotational speed to cause the vacuum cleaner to assume a state to be vacuumed. When the vacuum cleaner approaches or contacts the surface of the object, the controller drives the impeller module to operate at the second rotational speed so that the vacuum cleaner exhibits a vacuum state of general suction. When the vacuum cleaner inhales dust particles or garbage, and the amount of dust particles or garbage inhaled is relatively low, the controller drives the impeller module to maintain the second rotation speed. When the vacuum cleaner inhales dust particles or garbage, and the amount of the inhaled dust particles or garbage is relatively high, the controller drives the impeller module to operate at the third rotation speed so that the vacuum cleaner exhibits the maximum suction state of the vacuum.

Based on the above, the vacuum cleaner of the present invention can be automatically used according to the state of use. And adjust the suction or rotation speed by the amount of dust. Therefore, the vacuum cleaner of the present invention does not continue to be in a high rotational speed state after being turned on, thereby reducing power consumption and increasing the use time of the vacuum cleaner after charging.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a schematic perspective view of a vacuum cleaner according to the present embodiment, and FIG. 2 is a schematic view showing the appearance of the vacuum cleaner of the present embodiment. Referring to FIG. 1 and FIG. 2 , the vacuum cleaner of the embodiment includes a housing 102 , a clamping portion 104 , an impeller module 106 , a dust collecting box 108 , a first sensing device 112 , a second sensing device 114 , and a third sensing device 116 . Controller 118.

One end of the outer casing 102 has a dust suction port 102a for sucking dust particles or garbage into the interior of the vacuum cleaner. According to the embodiment, the outer casing 102 may further include an air outlet 130 for providing functions of heat dissipation, gas circulation, and the like of components inside the vacuum cleaner.

The clamping portion 104 is coupled to the outer casing 102. The outer casing 102 and the clamping portion 104 constitute a special beautifying appearance of the vacuum cleaner. In the present embodiment, the grip portion 104 is, for example, a grip, and the outer casing 102 and the grip portion 104 constitute an appearance similar to a nautilus, but the invention is not limited thereto. According to other embodiments, the outer casing 102 and the clamping portion 104 may also be of other shape designs.

The impeller module 106 is located inside the outer casing 102. In particular, the suction port 102a has a passage 110 between the impeller module 106. Here, the impeller module 106 includes a motor 106a and an impeller junction electrically connected to the motor 106a. The structure 106b is configured to generate suction when the cleaner is in an open state. Of course, the impeller module 106 can also include an impeller protection housing, a vent, and the like. The impeller module 106 can employ any of the impeller modules used in conventional vacuum cleaners.

The dust box 108 is located inside the outer casing 102 and is located between the passage 110 and the impeller module 106. In other words, the dust box 108 is in communication with the passage 110 and the impeller module 106. Therefore, when the impeller module 106 is activated, the suction generated by the impeller module 106 can pass through the dust box 108 and the passage 110 to the dust suction port 102a, so that the dust particles or garbage at the dust suction port 102a can be sucked to reach the dust collection. Inside the box 108. The dust box 108 is used to collect dust particles or garbage that are inhaled.

The first sensing device 112 is disposed on the clamping portion 104. The sensing device 1 mounted on the clamping portion 104 is for sensing whether the user touches the clamping portion 104. The first sensing device 112 can be mounted inside the clamping portion 104 (as shown in Figure 3A). Of course, the first sensing device 112 can also be disposed outside the clamping portion 104 (as shown in FIG. 3B). In addition, the first sensing device 112 can be a contact sensing device or a non-contact sensing device. The touch sensing device described above is, for example, a button or a pressure sensitive sensor. The above non-contact sensing device is, for example, an infrared light sensor, a light blocking sensor or a photosensitive sensor.

For example, if the first sensing device 112 is installed inside the clamping portion 104, as shown in FIG. 3A, and it is a non-contact sensing device (for example, an infrared light sensor, a light blocking sensor, or The photosensitive portion 4, the corresponding clamping portion 104 disposed at the first sensing device 112 may partially have a light transmitting region to expose the first sensing device 112. When the user wants to use the vacuum cleaner to contact the clamping portion 104 and lift the vacuum cleaner, it is installed in the clamping portion. The induced light of the first sensing device 112 of 104 is shielded by the user's hand to activate the first sensing device 112 to generate an inductive signal.

If the first sensing device 112 is installed outside the clamping portion 104, as shown in FIG. 3B, and it is a contact sensing device (for example, a button sensor or a pressure sensor), then when the user wants to use the vacuum cleaner When the vacuum cleaner is lifted by contacting the clamping portion 104, the first sensing device 112 mounted on the clamping portion 104 is pressed to activate the first sensing device 112 to generate an inductive signal.

Referring again to FIG. 1, the second sensing device 114 is disposed adjacent to the dust suction port 102a. The second sensing device 114 installed at the dust suction port 102a is for sensing whether the dust suction port 102a is close to or in contact with a dust suction target (for example, a surface of a specific object such as a floor or a table top). The second sensing device 114 can be disposed outside the dust suction port 102a (as shown in FIG. 4A), inside the dust suction port 102a (as shown in FIG. 4B), or at the edge of the dust suction port 102a (as shown in FIG. 4C). The second sensing device 114 can be a contact sensing device or a non-contact sensing device. The above contact type sensing device is, for example, a pressure sensitive sensor. The above non-contact sensing device is, for example, an infrared light sensor, a light blocking sensor or a photosensitive sensor.

For example, if the second sensing device 114 is disposed outside the dust suction port 102a, as shown in FIG. 4A, it may be a non-contact sensing device (for example, an infrared light sensor or a photosensitive sensor). Therefore, when the dust suction port 102a of the vacuum cleaner is close to the dust suction target (for example, the surface of other specific objects such as the ground or the table top), the light of the second sensing device 114 installed near the dust suction port 102a detects the dust suction target ( For example, the ground, the desktop, etc. The second sensing device 114 is activated to generate an inductive signal. According to another embodiment, when the second sensing device 114 is a contact sensing device (for example, a spring-type sensor or a pressure-sensitive sensor), when the dust suction port 102a of the vacuum cleaner contacts the dust-collecting object (for example, the ground, the desktop, etc.) The second sensing device 114 is activated to generate an inductive signal when the surface of another particular object is present.

If the second sensing device 114 is installed inside the dust suction port 102a, as shown in FIG. 4B, it can adopt a non-contact sensing device (for example, an infrared light sensor, a light blocking sensor or a photosensitive sensor). Therefore, when the dust suction port 102a of the vacuum cleaner is close to the dust suction target (for example, the surface of other specific objects such as the ground or the table top), the light of the second sensing device 114 installed inside the dust suction port 102a detects the dust suction target ( For example, the surface of the other specific object such as the ground or the desktop, the second sensing device 114 is activated to generate an inductive signal.

If the second sensing device 114 is installed at the edge of the dust suction port 102a, as shown in FIG. 4C, it can be determined whether the second sensing device 114 is exposed outside the dust suction port 102a to determine the sensor used. In other words, if the second sensing device 114 is disposed at the edge of the dust suction port 102a and exposed outside the dust suction port 102a, the second sensing device 114 can be a contact sensing device (for example, a spring sensor or a pressure sensor). ). If the second sensing device 114 is disposed at the edge of the dust suction port 102a and is not exposed outside the dust suction port 102a, the second sensing device 114 can adopt a non-contact sensing device (for example, an infrared light sensor, a light blocking feeling) A sensor or a light sensor) or a touch sensor (for example, a pressure sensor).

Referring again to FIG. 1, the third sensing device 116 is installed in the dust box. 108 is in the channel 110 between the dust suction port 102a. In other words, the third sensing device 116 is installed at a place where dust particles or garbage are sucked in by the vacuum cleaner and before passing to the dust box 108. The third sensing device 116 can be used to sense the amount of dust or garbage inhaled. Here, the third sensing device 116 can be a non-contact sensing device (as shown in FIG. 5A) or a contact sensing device (as shown in FIG. 5B). The above contact type sensing device can be a pressure sensitive sensor or a pressure sensing device. The above non-contact sensing device is an infrared light sensor, a light blocking sensor or a photosensitive sensor.

For example, if the third sensing device 116 is a non-contact sensing device (for example, an infrared light sensor, a light blocking sensor, or a photosensitive sensor), as shown in FIG. 5A, the third sensing device 116 includes a transmitter. 116a and receiver 116b, and transmitter 116a produces light 116c that is directed at receiver 116b. When the vacuum cleaner has inhaled dust particles or garbage, the dust particles or garbage will block the light 116c from advancing to the receiver 116b when passing through the third sensing device 116. In more detail, the more the amount of dust or garbage inhaled, the more the amount of dust or waste passing through the third sensing device 116 during a certain period of time. At this time, the light ray 116c of the third sensing device 116 is blocked by the dust particles or the garbage that is sucked in. Therefore, the amount of dust particles or garbage inhaled can be determined by the area where the light is blocked (the amount by which light is blocked).

If the third sensing device 116 is a contact sensing device (for example, a pressure sensing sensor or other kind of contact sensor), as shown in FIG. 5B, when the vacuum cleaner has inhaled dust particles or garbage, the dust particles or garbage pass through. The third sensing device 116 will strike the third sensing device 116 and cause the third sensing device 116 to generate an inductive signal. In more detail, during a certain time, when The more the amount of dust or garbage inhaled, the more dust particles or garbage that hit the third sensing device 116. Therefore, the amount of dust particles or garbage inhaled can be judged by the degree to which the third sensing device 116 is struck.

Referring to FIG. 1 , the controller 118 is disposed inside the housing 102 and electrically connected to the first sensing device 112 , the second sensing device 114 , and the third sensing device 116 to enable the first sensing device 112 and the second sensing device. The sensing signals of device 114 and third sensing device 116 are passed back to controller 118. The controller 118 drives the operation of the impeller module 106 according to the sensing signals transmitted by the first sensing device 112, the second sensing device 114, and the third sensing device 116.

According to this embodiment, the vacuum cleaner further includes a power switch 126 that can be mounted at any of the outer casings 120 for enabling the user to turn the vacuum cleaner on or off. According to other embodiments, the power switch 126 of the vacuum cleaner can also be mounted on the clamping portion 104, which is mainly based on the user's convenience of use, the design of the vacuum cleaner, and the like. The power switch 126 is also electrically connected to the controller 118. After the controller 118 receives the start signal or the turn-off signal of the power switch 126, the controller 118 will drive the impeller module 106 to turn on or off according to the above signal.

In addition, the vacuum cleaner further includes a display device 120 that is mounted on the outer casing 102. The display device 120 may include a light emitting diode display device (LED), an organic light emitting display panel (OLED), a liquid crystal display panel (LCD), or a liquid crystal display module (LCM). Display device 120 is also electrically coupled to controller 118. When the controller 118 receives the sensing signals of the sensing devices 112, 114, 116, in addition to starting the impeller module 106 according to the sensing signals In addition to the operation, the display device 120 is also controlled to display a specific display signal.

In addition, if the vacuum cleaner is a hand-held vacuum cleaner or a wireless vacuum cleaner, the vacuum cleaner further includes a rechargeable battery 124 and a charging socket 122, which are disposed inside the outer casing 120 and located on one side of the impeller module 106, and are mainly used for The power required by the impeller module 106, the controller 118, the sensing devices 112, 114, 116, the display device 120, and all components within the vacuum cleaner are supplied. The rechargeable battery 124 is also electrically coupled to the controller 118. The controller 118 can receive the stored electricity signal from the rechargeable battery 124 to control the display device 120 to display the stored electricity amount, thereby alerting the user whether it is necessary to recharge.

6 to 12 are schematic views showing the operation method of the vacuum cleaner of Fig. 1 described above. Referring to FIG. 6 first, when the user uses the vacuum cleaner of the embodiment, the user can first open the vacuum cleaner through the power switch 126 on the outer casing 102.

As shown in Fig. 7, after the vacuum cleaner is turned on, the components inside the cleaner are kept energized. When the controller 118 receives the turn-on signal from the power switch 126, the controller 118 controls the impeller module 106 to remain in a stationary state, so that the vacuum cleaner is in a standby state at this time. In this embodiment, the controller 118 can simultaneously drive the display device to display the first signal, such as the number of specific lights (for example, no light number; or one light) or other display signals (such as LCM or LCD display). The panel, displayed in text, graphics, or color, to indicate that the vacuum cleaner is in standby.

Referring to FIG. 8, when the user picks up the vacuum cleaner, that is, when the user touches the clamping portion 104 of the vacuum cleaner, the first sensing device 112 mounted on the clamping portion 104 generates an inductive signal. After the inductive signal is transmitted back to the controller 118, the controller 118 drives the impeller module 106 to operate at the first speed. Turn (low speed), at this time the vacuum cleaner is in a state to be vacuumed. At this time, the controller 118 further drives the display device 120 to display the second signal (for example, one more light is displayed than the first signal), for example, the number of specific lights (for example, one light number; or two lights) No.) or other display signals (such as LCM or LCD display panel, displayed in text, graphics or color) to show that the vacuum cleaner is being held.

Referring to FIG. 9, when the user approaches or contacts the vacuum cleaner (for example, the surface of the ground, the table top, or other objects), the second sensing device 114 disposed near the dust suction port 102a generates an inductive signal. After the signal is transmitted back to the controller 118, the controller 118 drives the impeller module 106 to operate at a second rotational speed (relative to the medium rotational speed). At this time, the vacuum cleaner exhibits a vacuum state of general suction. In addition, the controller 118 further drives the display device 120 to display the third signal (for example, more than one signal is displayed in the second signal), for example, the number of specific lights (for example, 2 lights; or 3 lights) ) or other display signals (such as LCM or LCD display panel, displayed in text, graphics or color) to indicate that the vacuum cleaner is in close proximity to or in contact with the vacuum target.

It is worth mentioning that, referring to FIG. 10, even if the vacuum cleaner is close to the surface of the non-planar object, the second sensing device 114 disposed near the dust suction port 102a can sense the sensing signal. Similarly, after the inductive signal is transmitted back to the controller 118, the controller 118 drives the impeller device 106 to operate at a second rotational speed, and the vacuum cleaner exhibits a vacuum state of general suction. The controller 118 further drives the display device 120 to display the third signal (for example, displaying one more light signal than the second signal), for example, the number of specific lights (for example, two lights; or three lights) or Is another display signal (such as text, graphics or color) Color) to show that the vacuum cleaner is in proximity to or in contact with the vacuum target.

Referring to FIG. 11, when the vacuum cleaner inhales the dust particles or the garbage 160, the third sensing device 116 installed in the passage 110 between the impeller module 106 and the dust suction port 102a may be based on the inhaled dust particles or the garbage 160. The quantity produces a corresponding sensing signal. When the amount of dust or waste 160 inhaled is a low amount, after the induction signal is transmitted back to the controller 118, the controller 118 drives the impeller device 106 to maintain the second rotational speed (relative to the medium rotational speed). At this time, the controller 118 further drives the display device 120 to display the fourth signal (for example, the same as the third signal or more than the third signal), for example, the number of specific lights (for example, 2 to 3) A light number; or 3~4 lights) or other display signals (such as LCM or LCD display panel, displayed in text, graphics or color) to indicate that the vacuum cleaner is in a normal vacuum condition.

Referring to FIG. 12, when the amount of the dust particles or the garbage 170 is relatively large, the third sensing device 116 installed in the channel 110 between the impeller module 106 and the dust suction port 102a generates a corresponding sensing signal. . After the sensing signal is transmitted back to the controller 118, the controller 118 drives the impeller assembly 106 to operate at a third rotational speed (maximum rotational speed), and the vacuum cleaner exhibits a vacuum state of maximum suction. The controller 118 also controls the display device 120 to display the fifth signal (for example, displaying more than one light signal than the fourth signal), for example, the number of specific lights (for example, 3 to 4 lights; or 4 to 5) A light signal) or other display signal (such as LCM or LCD display panel, displayed in text, graphics or color) to indicate that the vacuum cleaner is in a high vacuum state.

The above operation description is illustrated by taking the vacuum of three-stage rotation as an example. However, the invention is not limited thereto. According to other embodiments, the speed of the vacuum cleaner can also be Make more design of the number of segments.

The flow of the above operational mode is shown in FIG. More specifically, after the vacuum cleaner is turned on (S09), the impeller module of the cleaner is kept in a stationary state (S10), so that the cleaner is in a standby state at this time. At this time, the controller drives the display device to display the first signal (S11).

Then, if the first sensing device does not sense that the user touches the nip portion of the cleaner (S12), the flow returns to step S10 to keep the cleaner in the standby state. If the first sensing device senses that the user touches the clamping portion of the vacuum cleaner (S12), the first sensing device transmits the sensing signal to the controller. After the controller receives the sensing signal, the driving impeller module is operated at the first rotating speed, for example, it is operated at a speed of 25% (S14), so the vacuum cleaner is present in a state to be vacuumed. At this time, the controller drives the display device to display the second signal (S16). The first rotational speed of the embodiment is exemplified by a rotational speed of 25%. However, according to other embodiments, the first rotational speed may be set to other rotational speeds according to actual needs.

Thereafter, if the second sensing device does not sense that the suction port approaches or contacts the table top or other object (S18), the flow returns to step S12 to keep the cleaner in the state to be vacuumed. If the second sensing device senses that the dust suction port is close to or touches the desktop or other object (S18), the second sensing device sends an induction signal to the controller. After receiving the sensing signal, the controller drives the impeller module to operate at a second rotational speed, for example, 50 to 75% of the rotational speed (S20), so the vacuum cleaner is now in a vacuum state that exhibits general suction. At this time, the controller drives the display device to display the third signal (S22). The second rotation speed of this embodiment is 50 to 75% of the rotation speed as an example. According to other embodiments, the second rotational speed may also be set to other rotational speeds according to actual needs.

Then, if the third sensing device does not sense the inhalation of dust particles or garbage (S24), the flow returns to step S18 to maintain the vacuum cleaner in the vacuum state of the general suction. If the third sensing device senses the inhalation of dust particles or garbage (S24), the third sensing device senses and sends an inductive signal to the controller according to the amount of inhalation. After receiving the sensing signal, the controller drives the impeller module to operate at a third rotational speed or higher, for example, when the third sensing device senses that the amount of inhaled dust particles or the garbage 170 is low. The controller drives the impeller device to maintain the second rotational speed (relative to the medium rotational speed). At this time, the controller drives the display device to display the fourth signal. When the third sensing device senses that the amount of the inhaled dust particles or the garbage 170 is relatively large, the controller drives the impeller device to operate at a speed of 80 to 100% (S26), so that the vacuum cleaner is the vacuuming state that exhibits the maximum suction force at this time. . At this time, the controller drives the display device to display the fifth signal (S28). The third rotation speed in this embodiment is exemplified by the rotation speed of 80 to 100%. However, according to other embodiments, the third rotation speed may be set to other rotation speeds according to actual needs.

It is worth mentioning that between steps S24-S28, the third sensing device sends different sensing signals to the controller according to the amount of dust particles or garbage inhaled. The controller drives the impeller module to operate at different speeds according to the above-mentioned sensing signals. In other words, when the amount of dust particles or garbage inhaled is increased, the controller drives the impeller module to operate at a higher rotational speed.

In summary, the vacuum cleaner of the embodiment is provided with a first sensing device at the clamping portion, a second sensing device is disposed near the dust suction port, and the impeller is mounted on the impeller. A third sensing device is disposed in the passage between the module and the suction port. Therefore, the vacuum cleaner of the present embodiment can adjust the rotational speed of the impeller module instantaneously and automatically according to the state in which it is used (for example, the standby state, the presence or absence of dust/waste status, and the state of inhaling dust/waste amount). In other words, the vacuum cleaner of the present embodiment does not continuously maintain the power consumption state at a high rotational speed after being turned on, and thus the hand-held vacuum cleaner of the present embodiment has an electric power saving effect as compared with the conventional hand-held vacuum cleaner.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

102‧‧‧Shell

102a‧‧‧Dust suction

104‧‧‧Clamping Department

106‧‧‧ Impeller module

106a‧‧‧Motor

106b‧‧‧ Impeller structure

108‧‧‧ dust box

110‧‧‧ channel

112‧‧‧First sensing device

114‧‧‧Second sensing device

116‧‧‧ third sensing device

116a‧‧‧transmitter

116b‧‧‧ Receiver

116c‧‧‧Light

118‧‧‧ Controller

120‧‧‧ display device

122‧‧‧Charging jack

124‧‧‧Rechargeable battery

126‧‧‧Power switch

130‧‧‧air outlet

S09~S28‧‧‧Steps

1 is a perspective schematic view of a vacuum cleaner in accordance with an embodiment.

Fig. 2 is a schematic view showing the appearance of the vacuum cleaner of Fig. 1.

3A and 3B are schematic views of a first inductor mounted to a clamping portion in accordance with several embodiments.

4A-4C are schematic illustrations of a second inductor mounted in the vicinity of a suction port, in accordance with several embodiments.

5A and 5B are schematic illustrations of a third inductor mounted in a channel in accordance with several embodiments.

6 to 12 are schematic views showing the operation method of the vacuum cleaner of Fig. 1 described above.

Figure 13 is a flow chart showing the operation of the vacuum cleaner in accordance with an embodiment.

102a‧‧‧Dust suction

104‧‧‧Clamping Department

106‧‧‧ Impeller module

106a‧‧‧Motor

106b‧‧‧ Impeller structure

108‧‧‧ dust box

110‧‧‧ channel

112‧‧‧First sensing device

114‧‧‧Second sensing device

116‧‧‧ third sensing device

118‧‧‧ Controller

120‧‧‧ display device

122‧‧‧Charging jack

124‧‧‧Rechargeable battery

126‧‧‧Power switch

Claims (20)

A vacuum cleaner comprising: a casing having a suction port at one end thereof; a clamping portion connected to the casing; an impeller module located inside the casing, and between the suction port and the impeller module Having a channel; a first sensing device disposed on the clamping portion; a second sensing device disposed adjacent the dust suction port; a third sensing device disposed in the channel; and a controller Electrically connecting with the impeller module and the first, second, and third sensing devices; wherein the controller drives the impeller module to be first according to the sensing states of the first, second, and third sensing devices The rotation speed, the second rotation speed and the third rotation speed are operated to make the vacuum cleaner exhibit a dust collection state, a general suction state, and a maximum suction state. The vacuum cleaner of claim 1, wherein the impeller module comprises a motor and an impeller structure electrically connected to the motor. The vacuum cleaner of claim 1, wherein the first sensing device is disposed inside or outside the clamping portion. The vacuum cleaner of claim 1, wherein the first sensing device is a contact sensing device or a non-contact sensing device; wherein the contact sensing device is a button or a pressure sensitive sensor, the non-contact The sensing device is an infrared light sensor, a light blocking sensor or a photosensitive sensor. The vacuum cleaner of claim 1, wherein the second sensing device is mounted inside, outside or at the edge of the dust suction port. The vacuum cleaner of claim 1, wherein the second sensing device is a contact sensing device or a non-contact sensing device; wherein the contact sensing device is a shrapnel sensor or a pressure sensing sensor. The non-contact sensing device is an infrared light sensor, a light blocking sensor or a photosensitive sensor. The vacuum cleaner of claim 1, wherein the third sensing device is a contact sensing device or a non-contact sensing device; wherein the contact sensing device is a pressure sensing sensor or a pressure inductor. The non-contact sensing device is an infrared light sensor, a light blocking sensor or a photosensitive sensor. The vacuum cleaner of claim 1, further comprising a display device mounted on the outer casing. The vacuum cleaner of claim 8, wherein the display device comprises a light emitting diode display panel, an organic light emitting display panel or a liquid crystal display panel. The vacuum cleaner of claim 8, wherein the controller adjusts a display state of the display device according to the sensing states of the first, second, and third sensing devices. The vacuum cleaner of claim 1, further comprising: a rechargeable battery and a charging jack disposed inside the casing and located at one side of the impeller module; and a power switch mounted on the casing Or on the clamping part. The vacuum cleaner of claim 1, further comprising a dust collecting box located between the channel and the impeller module; wherein the outer casing further comprises an air outlet corresponding to the impeller module. A method of operating a vacuum cleaner, comprising: providing a vacuum cleaner comprising at least an impeller module and a controller; after the vacuum cleaner is turned on, the controller maintains a state of being energized, and controls the impeller module to be in a stationary state, The vacuum cleaner is brought into a standby state; when contacting the clamping portion of the vacuum cleaner, the controller drives the impeller module to operate at a first rotational speed to cause the vacuum cleaner to assume a state to be vacuumed; when the vacuum cleaner approaches or contacts a When the surface of the object is used, the controller drives the impeller module to operate at a second rotational speed so that the vacuum cleaner exhibits a general suction state; when the vacuum cleaner inhales dust particles or garbage, and the amount of dust particles or garbage inhaled When the amount is lower than a predetermined amount, the controller drives the impeller module to maintain the second rotation speed; and when the vacuum cleaner inhales dust particles or garbage, and the amount of the inhaled dust particles or garbage is higher than one At a preset amount, the controller drives the impeller module to operate at a third rotational speed so that the vacuum cleaner exhibits a suction state of maximum suction. The operating method of the vacuum cleaner of claim 13, wherein the controller simultaneously drives a display device to display a first signal when the vacuum cleaner assumes the standby state. The operating side of the vacuum cleaner as described in claim 13 In the method, wherein the vacuum cleaner presents the state to be vacuumed, the controller further drives a display device to display a second signal to indicate that the vacuum cleaner is in a held state. The operating method of the vacuum cleaner of claim 13, wherein the controller further drives a display device to display a third signal to indicate that the vacuum cleaner is in proximity to or in contact with the target. State of affairs. The operating method of the vacuum cleaner of claim 13, wherein the controller further drives a display device to display a fourth signal to indicate that the vacuum cleaner draws less than a predetermined amount of dust particles or garbage. The vacuum cleaner is in a normal amount of vacuuming. The operating method of the vacuum cleaner of claim 13, wherein the controller further drives a display device to display a fifth signal when the vacuum cleaner draws in a predetermined amount of dust or garbage. The vacuum cleaner is in a high-vacuum state. The operating method of the vacuum cleaner of claim 13, wherein: when the vacuum cleaner exhibits the standby state, the controller further drives a display device to display a first signal; when the vacuum cleaner presents the state to be vacuumed, The controller further drives a display device to display a second signal to indicate that the vacuum cleaner is in a gripped state; and when the vacuum cleaner exhibits a general suction vacuum state, the controller further drives a display device to display a third signal. To indicate that the vacuum cleaner is at Approaching or contacting the target state; when the vacuum cleaner draws less than a predetermined amount of dust particles or garbage, the controller further drives a display device to display a fourth signal to indicate that the vacuum cleaner is in a general vacuum state; And when the vacuum cleaner inhales a dust or a garbage higher than a predetermined amount, the controller further drives a display device to display a fifth signal to indicate that the vacuum cleaner is in a high-vacuum state; wherein the first signal The second signal, the third signal, the fourth signal, and the fifth signal are the number of specific lights. The method of operating the vacuum cleaner of claim 19, wherein the number of the second signal is greater than the number of the first signal; the number of the third signal is greater than the second signal The number of lights of the fourth signal is greater than or equal to the number of light signals of the third signal; and the number of light signals of the fifth signal is greater than the number of light signals of the fourth signal.