CN110876581B - Handheld dust collector and dust collection cup state detection method - Google Patents

Handheld dust collector and dust collection cup state detection method Download PDF

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Publication number
CN110876581B
CN110876581B CN201911272101.3A CN201911272101A CN110876581B CN 110876581 B CN110876581 B CN 110876581B CN 201911272101 A CN201911272101 A CN 201911272101A CN 110876581 B CN110876581 B CN 110876581B
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CN
China
Prior art keywords
unit
cup
dust
bottom cover
control unit
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Application number
CN201911272101.3A
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Chinese (zh)
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CN110876581A (en
Inventor
檀冲
朱卫东
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Beijing Puppy Vacuum Cleaner Group Co Ltd
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Beijing Puppy Vacuum Cleaner Group Co Ltd
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Priority to CN201911272101.3A priority Critical patent/CN110876581B/en
Publication of CN110876581A publication Critical patent/CN110876581A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/106—Dust removal
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

The invention relates to a handheld dust collector and a dust cup state detection method, belongs to the technical field of dust collectors, and aims to solve the problem that an existing dust collector cannot automatically detect whether a dust cup bottom cover leaks air or not. The invention relates to a handheld dust collector, which comprises a dust cup, a detection unit, a control unit, a motor unit, a power supply unit, a warning unit and a main shell; the detection unit can detect whether the dust cup leaks air in real time and send the generated signal to the control unit; the control unit controls the motor unit to be turned on or turned off according to the signal transmitted by the detection unit and sends an instruction to the warning unit or not; the warning unit sends out corresponding warning information according to the instruction of the control unit. The invention can avoid starting the motor unit under the condition of air leakage at the bottom end of the dust cup, can avoid the non-accident loss of electric energy, saves the time and physical strength of users, and can also ensure the dust collection effect of the dust collector.

Description

Handheld dust collector and dust collection cup state detection method
Technical Field
The invention relates to the technical field of dust collectors, in particular to a handheld dust collector and a dust collection cup state detection method.
Background
In the handheld dust collector, the dust collecting cup comprises a cup body and a bottom cover, the bottom cover is arranged at the bottom of the cup body, the bottom cover can be opened only when dust stored in the dust collecting cup is cleaned, the inner wall surface of the dust collecting cup is cleaned or a filter element in the dust collecting cup is replaced or cleaned, and the bottom cover is in a closed state in other time. However, as the number of times of opening the bottom cover is continuously increased, the connection performance between the bottom cover and the cup body is also reduced, and a gap is formed between the bottom cover and the cup body or the bottom cover is automatically opened, so that the bottom of the dust cup leaks air, the negative pressure suction generated by the motor is lost or cannot be smoothly transmitted to the dust suction part, and the dust collection efficiency of the dust collector is reduced or the normal use of the dust collector is affected.
Disclosure of Invention
In view of the above analysis, the present invention is directed to a handheld vacuum cleaner and a dust cup state detection method, which are used for solving the problem that the existing vacuum cleaner cannot automatically detect whether the bottom cover of the dust cup leaks.
In one aspect, the invention provides a handheld dust collector, which comprises a dust collecting cup, a detection unit, a control unit, a motor unit, a power supply unit, a warning unit and a main shell; the detection unit can detect whether the dust cup leaks air in real time and send the generated signal to the control unit; the control unit controls the motor unit to be turned on or turned off according to the signal transmitted by the detection unit and sends an instruction to the warning unit or not; the warning unit sends out corresponding warning information according to the instruction of the control unit.
Further, the dust cup is mounted on the main housing, the dust cup comprises a cup body and a bottom cover, the bottom cover is arranged on a bottom port of the cup body, and the bottom cover is detachably connected with the bottom end of the cup body.
Further, the rear end of the bottom cover is rotationally connected with the cup body, and the front end of the bottom cover is detachably connected with the cup body.
Further, the rear end of the bottom cover is hinged with the rear side of the bottom end face of the cup body, and the front end of the bottom cover is detachably connected with the front side of the bottom end face of the cup body through a clamping piece;
the cup body is provided with a buckling part matched with the buckling piece.
Further, the detecting unit comprises a sensor connected with the control unit, the sensor being capable of detecting whether the dust cup is leaking gas or not and transmitting the generated signal to the control unit.
Further, the number N of the detection units is more than or equal to 1.
Further, the number of the detection units is n=1, the detection units are embedded in the end face of the bottom of the cup body of the dust cup, and a signal is generated when a sensor of the detection unit contacts with the bottom cover of the dust cup.
Further, the number N of the detection units is more than or equal to 2, the detection units are embedded in different positions of the end face of the bottom of the cup body of the dust cup, and a signal is generated when a sensor of the detection unit contacts with the bottom cover of the dust cup.
Further, the number N of the detection units is more than or equal to 2, at least one detection unit is embedded in the end face of the bottom of the cup body of the dust cup, and at least one detection unit is arranged in the dust cup;
a sensor of a detection unit arranged on the end surface of the bottom of the cup body generates a signal when contacting with the bottom cover of the dust cup;
the sensor of the detecting unit arranged in the dust cup is a vacuum sensor.
Further, the control unit comprises an information module, a clock module and a main control module, wherein the main control module is respectively connected with the information module and the clock module;
the information module is used for receiving and processing the signals sent by the detection unit and transmitting the processed signal data to the main control module;
the clock module is used for recording the duration of the handheld dust collector in a standby state in real time and converting the duration into data and transmitting the data to the main control module;
the main control module controls the on or off of the motor unit according to the received signal data and whether to send an instruction to the warning unit; and the main control module controls whether the power supply unit is closed or not according to the duration data.
Further, the warning unit can emit one or more warning information of light, sound, characters and images.
On the other hand, the invention provides a method for detecting the state of the dust cup of the handheld dust collector, which is used for detecting the state of the dust cup of the handheld dust collector and comprises the following steps:
step one: the detection unit detects whether the dust cup leaks air in real time, and transmits the generated signal to the control unit;
step two: the control unit controls the motor unit to be turned on or turned off according to the signal transmitted by the detection unit and whether to send an instruction to the warning unit;
step three: when the dust cup is airtight, the control unit starts the motor unit, and the handheld dust collector is in a working state;
when the dust cup leaks air, the control unit turns off the motor unit and sends an instruction to the warning unit, the warning unit sends corresponding warning information according to the instruction, and the handheld dust collector is in a standby state;
when the standby time of the handheld dust collector exceeds the preset time, the control unit (3) turns off the power supply unit, and the handheld dust collector is in a power-off state.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) The state of the dust cup can be detected in real time through the detection unit, the control unit controls the work of the dust collector according to the state of the dust cup, namely, the control unit controls the opening or closing of the motor unit according to the state of the dust cup, and the warning unit timely reminds a user to check the dust cup, so that the motor unit is prevented from being opened under the condition that the bottom end of the dust cup leaks air, the time and the physical strength of the user can be saved, and the negative pressure suction generated by the motor unit under the working state can be smoothly transmitted to the suction pipe of the main shell after passing through the dust cup, so that the dust collection effect of the dust collector can be ensured;
(2) By arranging a plurality of detection units, various air leakage conditions of the dust cup can be detected, different air leakage problems are solved by prompting a user through different warning information, the time spent by the user for checking the cause of air leakage is avoided, and the detection mode is simple, accurate and quick;
(3) The sensor of the detection unit adopts a contact sensor, so that the accuracy and stability of the detection unit can be effectively improved;
(4) When the duration of the handheld dust collector in the standby state exceeds the preset duration, the control unit can close the power supply unit, and unnecessary electric energy waste is avoided.
In the invention, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a block diagram of a hand-held cleaner according to a first embodiment;
FIG. 2 is a partial construction view of the hand-held cleaner according to the first embodiment, with the bottom cover removed;
FIG. 3 is a partial construction view of the bottom cover of the hand-held cleaner according to the first embodiment when opened;
FIG. 4 is a partial cross-sectional view of a hand-held cleaner of the first embodiment;
fig. 5 is a block diagram of a hand-held cleaner according to the first embodiment.
Reference numerals:
1-a dust cup; 11-a cup body; 111-a buckling part; 112-bar-shaped portion; 113-an arc-shaped portion; 12-a bottom cover; 121-a snap fastener; 122-seals; 2-a detection unit; 3-a control unit; 4-motor unit; 5-a power supply unit; 6-warning unit; 7-a main housing; 71-suction tube.
Detailed Description
The following detailed description of preferred embodiments of the invention is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the invention, are used to explain the principles of the invention and are not intended to limit the scope of the invention.
Example 1
The present embodiment provides a hand-held cleaner (hereinafter, simply referred to as a cleaner), as shown in fig. 1 to 5, including a dust cup 1, a detection unit 2, a control unit 3, a motor unit 4, a power supply unit 5, a warning unit 6, and a main housing 7, wherein the dust cup 1 is mounted on the main housing 7, the control unit 3, the motor unit 4, and the power supply unit 5 are located in the main housing 7, and the control unit 3 is connected with the detection unit 2, the motor unit 4, the power supply unit 5, and the warning unit 6, respectively.
The detection unit 2 is used for detecting the state of the dust cup 1 in real time and timely sending the generated signal to the control unit 3; the control unit 3 can control the on or off of the motor unit 4 (on or off will be hereinafter referred to as on or off), whether the power supply unit 5 is off, and the control unit 3 can send instructions to the warning unit 6, specifically, the control unit 3 controls the on or off of the motor unit 4 and sends instructions to the warning unit 6 according to the signal transmitted by the detection unit 2; the warning unit 6 sends out warning information according to the instruction of the control unit 3.
The dust cup 1 is mounted on the main housing 7, specifically, the main housing 7 is provided with a cavity for assembling the dust cup 1, the shape of the cavity is matched with that of the dust cup 1, the dust cup 1 is communicated with a suction pipe 71 of the main housing 7, a filter unit of the dust collector stretches into the dust cup 1, a fluid sequentially comprises the suction pipe 71, the dust cup 1, the filter unit, the motor unit 4 and an air outlet (the air outlet is formed on the main housing 7) in the path of the dust collector, and after the fluid is filtered and dedusted by the filter unit, the dust is discharged from the air outlet and falls into the dust cup 1.
The dust collecting cup 1 comprises a cup body 11 and a bottom cover 12, wherein the bottom cover 12 is arranged on the bottom port of the cup body 11, and the bottom cover 12 is detachably connected with the bottom end of the cup body 11, such as threaded connection, snap connection and the like, so that a user can conveniently clean dust stored in the dust collecting cup 1, clean the inner wall surface of the cup body 11 or replace or clean a filter element in the dust collecting cup 1.
In order to avoid that a user forgets to install the bottom cover 12 on the cleaner after removing the bottom cover 12 or loses the bottom cover 12, the rear end of the bottom cover 12 is rotatably connected with the cup 11, and the front end of the bottom cover 12 is detachably connected with the cup 11 through a buckle, a lock pin, a bolt and the like. In this embodiment, the rear end of the bottom cover 12 is hinged to the rear side of the bottom end surface of the cup 11, the front end of the bottom cover 12 is detachably connected to the front side of the bottom end surface of the cup 11 through a fastening piece 121, the cup 11 is provided with a fastening part 111 adapted to the fastening piece 121, and after the bottom cover 12 is fastened to the cup 11, the bottom cover 12 contacts with the bottom end surface of the cup 11.
In order to ensure the dust removing effect of the dust collector, the bottom of the dust collecting cup 1 is airtight, the bottom cover 12 is in sealing connection with the cup 11, in this embodiment, the bottom cover 12 is provided with a sealing member 122 adapted to the bottom port of the cup 11, and the bottom cover 12 is in sealing connection with the cup 11 through the sealing member 122.
In order to prevent dislocation when the bottom cover 12 is buckled with the cup 11, the bottom port of the cup 11 and the sealing member 122 are in a non-circular structure, in this embodiment, the bottom end surface of the cup includes two oppositely arranged strip-shaped parts 112 and two arc-shaped parts 113 connecting the two strip-shaped parts 112, the two strip-shaped parts 112 and the two arc-shaped parts 113 enclose the bottom port of the cup 11, specifically, the two strip-shaped parts 112 have the same length and are arranged in parallel, the buckling position and the hinging position of the bottom cover 12 and the cup 11 are respectively located at the front side and the rear side of the two strip-shaped parts 112, the strip-shaped part 112 located at the rear side of the buckling position is called a first strip-shaped part, and the strip-shaped part 112 located at the front side of the hinging position is called a second strip-shaped part; the two arc-shaped parts 113 have the same radian and radius, and the circle centers are all positioned on the central axis of the dust cup 1.
It should be noted that, in normal circumstances, after the bottom cover 12 is mounted to the bottom of the cup 11, the bottom cover 12 is connected to the bottom of the cup 11 in a sealing manner. In an abnormal situation, after the bottom cover 12 is mounted on the bottom of the cup 11, the bottom cover 12 cannot be connected with the bottom of the cup 11 in a sealing manner, so that the bottom of the dust cup 1 leaks air, for example: the bottom cover 12 is dislocated when being arranged on the cup body 11; or as the opening times of the bottom cover 12 are continuously increased, the connection performance of the bottom cover 12 and the cup body 11 is reduced, and gaps are formed between the bottom cover 12 and the cup body; and then, the sealing element is aged and deformed, so that the sealing effect cannot be achieved.
The control unit 3 comprises an information module, a clock module and a main control module, wherein the main control module is respectively connected with the information module and the clock module, the information module is used for receiving signals sent by the processing detection unit 2, the information module transmits processed signal data to the main control module, and the main control module controls the motor unit 4 to be opened and closed according to the received signal data and sends instructions to the warning unit 6; the clock module is used for recording the duration of the standby state of the dust collector in real time and converting the duration into data to be transmitted to the main control module, and the main control module controls whether the power supply unit 5 is closed according to the duration data, specifically, a preset duration can be set, and when the standby duration exceeds the preset duration, the power supply unit 5 is closed so as to avoid unnecessary electric energy consumption.
The standby state refers to a state when the power supply unit 5 of the cleaner is turned on and the motor unit 4 is turned off. The preset time period can be set directly or set or changed by the user.
The power supply unit 5 is respectively connected with the detection unit 2, the control unit 3, the motor unit 4 and the warning unit 6, and provides working electric energy for the units. The power switch of the power supply unit 5 is arranged on the main shell 7, so that a user can conveniently turn on and off the dust collector, in addition, the control unit 3 can also control whether the power supply unit 5 is turned off, specifically, the control unit 3 controls whether the power supply unit 5 is turned off according to the standby time length of the dust collector, and the dust collector is prevented from being in a standby state for a long time, so that electric energy is wasted.
The warning unit 6 is disposed on and/or in the main housing 7, and the specific position depends on the warning mode adopted by the warning unit 6 to remind the user, for example: if the warning unit 6 alerts the user through visual warning, such as the color or the on/off of the indicator light, the characters or the patterns on the display screen, and the like, the warning unit 6 is arranged on the main shell and is arranged at a place where the shell is obvious, so that the user can intuitively see the warning unit to prompt the user; if the alarm unit 6 alerts the user through audible alarm, such as voice, alarm music, etc., the alarm unit 6 is installed on or in the housing; the warning unit 6 can also remind the user through various warning modes at the same time.
The warning unit 6 is a device capable of sending out one or more kinds of prompt information such as light, sound, characters, images and the like to a user, and the warning unit 6 can be one or more kinds of indicator lights, buzzers, voice prompts, display screens and the like. In this embodiment, the warning unit 6 is a voice prompter, which sends out different warning voices according to different instructions of the control unit 3 to prompt the user of the state of the dust cup 1, and specifically, the voice prompter is mounted on the main housing 7.
The detection unit 2 is adapted to detect the status of the dirt cup 1 in real time and to send the generated signal to the control unit 3. The detecting unit 2 is at least capable of detecting whether the bottom cover 12 of the dust cup 1 is closed; further, the detecting unit 2 is also capable of detecting whether there is a gap between the bottom cover 12 and the cup 11; further, the detecting unit 2 can also detect whether or not the bottom of the dust cup 1 is leaking and the degree of leaking.
The detection unit 2 comprises a sensor, which is connected to the control unit 3, which is capable of detecting the status of the dirt cup 1 and transmitting the generated signal to the control unit 3. The detecting unit 2 specifically detects what state of the dust cup 1, and depends on the number of detecting units 2, the mounting position, and the kind of sensor.
The following classification description is made according to the specific detection of the state type of the dust cup 1 by the detection unit 2:
(I) The method comprises the following steps When the detecting unit 2 is used only for detecting whether the bottom cover 12 of the dust cup 1 is closed, at this time, a sensor, such as a pressure sensor, an ultrasonic ranging sensor, etc., which can detect whether the bottom cover 12 is closed, may be used as a sensor of the detecting unit 2.
In order to improve the accuracy and stability of the detection unit 2, a touch sensor is used as the sensor.
Specifically, the sensor is embedded in the bottom end surface of the cup 11, when the bottom cover 12 is closed, the sensor can be in contact with the sensor, the sensor generates a signal and sends the signal to the control unit 3, the control unit 3 receives the signal data, the control unit 3 controls the motor unit 4 to be started or keeps the motor unit 4 in a starting state (when the dust collector is just started, the control unit 3 starts the motor unit 4, when the dust collector is in a normal working state, the control unit 3 keeps the motor unit 4 in a starting state, and can also be abbreviated as the control unit 3 starts the motor unit 4), and the dust collector works normally; if the bottom cover 12 is in an open state, the sensor does not contact with the bottom cover 12, no signal is generated, the control unit 3 does not receive the signal of the sensor, the control unit 3 does not turn on or off the motor unit 4 (when the dust collector is just started, the control unit 3 does not turn on the motor unit 4, when the dust collector is in a normal working state, the control unit 3 can also be abbreviated as the control unit 3 turns off the motor unit 4), and sends a corresponding instruction to the warning unit 6, the warning unit 6 sends out warning information that the bottom cover 12 is in an open state according to the instruction, so as to prompt a user to close the bottom cover 12, if the dust collector is in a standby state, if the dust collector is in a preset time period, the user closes the bottom cover 12 (detected by the detection unit 2, and the detection in the following standby state is also detected by the detection unit 2 and is not repeated), the control unit 3 turns on the motor unit 4, and when the dust collector starts or continues to work normally, if the standby state exceeds the preset time period, the control unit 3 turns off the power supply unit 5. If the bottom cover 12 is in the closed state all the time, the sensor continuously generates a continuous signal and transmits the signal to the control unit 3 in real time.
The normal operation state of the vacuum cleaner is a state in which both the motor unit 4 and the power supply unit 5 are turned on, the standby state of the vacuum cleaner is a state in which the motor unit 4 is turned off and the power supply unit 5 is turned on, and the off state of the vacuum cleaner is a state in which both the motor unit 4 and the power supply unit 5 are turned off.
In this embodiment, the bottom end surface of the cup 11 is provided with an assembly groove for assembling the detection unit 2, the detection unit 2 is installed in the assembly groove, the sensor is positioned in the notch, the bottom cover 12 can be contacted with the sensor when being closed, specifically, the sensor is provided with an elastic contact end, the sensor is embedded in the assembly groove, the elastic contact end can extend out of the assembly groove and protrude from the bottom end surface of the cup 11, when the bottom cover 12 is closed, the elastic contact end can be pressed to retract into the assembly groove, the sensor generates a signal when the bottom cover 12 presses the elastic contact end and transmits the signal to the control unit 3, and when the bottom cover 12 is always in the closed state, the elastic contact end is always in the pressed state, the sensor generates a continuous signal and transmits the signal to the control unit 3 in real time; when the bottom cover 12 is opened, the elastic contact end protrudes from the fitting groove, protruding from the bottom end surface of the cup 11, at which time the elastic contact end is not pressed, and the sensor does not generate a signal.
When the detecting unit 2 is only used for detecting whether the bottom cover 12 of the dust cup 1 is closed, it is only necessary to provide one detecting unit 2 to detect whether the bottom cover of the dust cup is closed. At this time, the detecting unit 2 may be disposed at an arbitrary position of the bottom end surface of the cup 11 contacting the bottom cover, and in this embodiment, the detecting unit 2 is disposed at the center of the bar portion 112 (in fig. 3 and 4, the detecting unit is disposed at the second bar portion), so that the detection by the detecting unit is more accurate.
It should be noted that, in this embodiment, the elastic contact end is pressed back into the assembly groove, so that the sensor generates a signal, and this is so arranged as to ensure that the sensor generates a signal only when the bottom cover 12 at the position where the sensor is located is fully attached to the bottom end surface of the cup 11.
(II): when the detecting unit 2 is able to detect not only whether the bottom cover 12 of the dust cup 1 is closed, but also whether there is a gap between the bottom cover 12 and the cup 11 (including misalignment between the bottom cover 12 and the cup 11).
At this time, the kind of sensor of the detecting unit 2 is selected the same as that in (I), and the main difference between (II) and (I) is that: the number N of the detection units 2 is more than or equal to 2, the detection units 2 are embedded in different positions of the bottom end face of the cup body 11 and are uniformly distributed at important connection positions of the bottom end face as far as possible so as to detect whether gaps exist between the bottom cover 12 and the bottom end face of the cup body 11, and therefore the bottom leakage of the dust cup 1 is avoided, and the dust collection efficiency of the dust collector is affected.
When the bottom cover 12 is in a correct closing state (i.e. the bottom cover 12 is closed, and no gap exists between the bottom cover 12 and the end surface of the bottom of the cup 11), all the sensors of the detecting units 2 are in contact with the bottom cover 12, all the detecting units 2 send signals to the control unit 3, the control unit 3 receives the signals sent by all the detecting units 2, the bottom cover 12 is analyzed to be correctly closed, the control unit 3 controls the motor unit 4 to be opened or maintains the motor unit 4 in an opening state, and the dust collector is in a normal working state.
When the bottom cover 12 is in an incorrect closing state (namely, the bottom cover 12 is closed, but a gap exists between the bottom cover 12 and the bottom end face of the cup 11), the sensor of at least one detection unit 2 can be in contact with the bottom cover 12, the sensor of at least one detection unit 2 is not in contact with the bottom cover 12, therefore, only part of the detection units 2 send signals to the control unit 3, after receiving the signals of part of the detection units 2, the control unit 3 analyzes that the bottom cover 12 is not closed correctly, the control unit 3 does not open or close the motor unit 4, and sends instructions to the warning unit 6, the warning unit 6 sends warning information that the bottom cover 12 is not closed correctly to remind a user to close the bottom cover 12 again, at this time, the dust collector is in a standby state, if the bottom cover 12 is closed correctly by the user, the control unit 3 opens the motor unit 4, the dust collector starts to operate, and if the standby state exceeds the preset time, the control unit 3 turns off the power supply unit 5, and the dust collector is in a shutdown state.
When the bottom cover 12 is in an open state, all sensors of the detection units 2 are not in contact with the bottom cover 12, all the detection units 2 do not send signals to the control unit 3, the control unit 3 does not receive the signals sent by the detection units 2, the control unit 3 analyzes that the bottom cover 12 is in the open state, the control unit 3 does not open or close the motor unit 4 and sends an instruction to the warning unit 6, the warning unit 6 sends warning information that the bottom cover 12 is in the open state according to the instruction so as to prompt a user to close the bottom cover 12, at the moment, if the dust collector is in a standby state, the user correctly closes the bottom cover 12, the control unit 3 opens the motor unit 4, the dust collector starts dust collection work, and if the standby state exceeds the preset time, the control unit 3 closes the power supply unit 5, and at the moment, the dust collector is in a shutdown state.
(III): when the detecting unit 2 is able to detect not only whether the bottom cover 12 of the dust cup 1 is closed or not, the detecting unit 2 is also able to detect whether and to what extent the dust cup 1 is leaking. At this time, the number N of the detecting units 2 is not less than 2, at least one detecting unit 2 is embedded in the bottom end surface of the cup body 11 for detecting whether the bottom cover 12 is closed, and the type of the sensor of the detecting unit 2 arranged on the bottom end surface of the cup body 11 is the same as that in (I); at least one detection unit 2 is arranged in the dust cup 1 (including being embedded on the inner wall of the dust cup 1), and a sensor of the detection unit 2 arranged in the dust cup 1 is a vacuum sensor for detecting the vacuum degree in the dust cup 1 in real time.
The manner of detecting whether the bottom cover 12 is closed or not is substantially the same as (I) and (II), and will not be described in detail herein.
The vacuum sensor is connected with the control unit 3 and timely transmits vacuum degree signals detected in real time to the control unit 3, at this time, the control unit 3 comprises a vacuum degree module, the vacuum degree module stores standard vacuum degree values of the dust cup under different motor powers (the standard vacuum degree values are measured by standard detection of the dust cup when the dust collector is produced), and the standard vacuum degree values are marked as P S The information module processes the received real-time vacuum degree signal into a real-time vacuum degree value which is recorded as P and transmitted to the main control module A The main control module is used for calling the motor power from the vacuum degree module according to the real-time motor powerP at the rate S And calculates a vacuum degree difference Δp (Δp= |p) S -P A And I), when DeltaP is larger than or equal to m (m is the minimum vacuum degree difference value when the air leakage degree of the dust cup influences the dust collection efficiency of the dust collector, the value is generally set when the dust collector leaves a factory), the dust cup 1 is considered to be air-leaked, at the moment, the control unit 3 turns off the motor unit 4 and sends an instruction to the warning unit 6, the warning unit 6 sends out air-leakage warning information according to the instruction, a user is reminded of checking the condition of the dust cup 1, the dust collector is in a standby state at the moment, if the dust collector is in a preset time period, the user solves the problem of air leakage of the dust cup, the control unit 3 turns on the motor unit 4, the dust collector starts dust collection work, and if the standby state exceeds the preset time period, the control unit 3 turns off the power supply unit 5, and the dust collector is in a shutdown state.
The detection of the vacuum degree is started only when the motor unit 4 is in the on state, and therefore, the opening and closing of the detecting unit 2 provided in the dust cup 1 is synchronized with the opening and closing of the motor unit 4, and therefore, the opening and closing of the vacuum sensor is controlled by the control unit 3, and the vacuum sensor is turned on/off while the motor unit 4 is turned on/off.
The leakage of the dust cup 1 generally comprises the following four cases: (1) the bottom cover 12 is not closed; (2) a gap exists between the bottom cover 12 and the cup body 1; (3) the seal 122 ages or deforms and does not seal; (4) the bottom cover 12 and the cup 11 are broken.
As can be seen from the above (I) - (III), the (1) th air leakage (I) - (III) can be detected, and the (2) th air leakage can be detected through (II), (III); the (3) th leak (III) can be detected; the (4) th air leakage (III) can be detected, and this air leakage is visible to the naked eye.
The sensors of the detecting unit 2 disposed on the bottom end surface of the cup body in (I) - (III) may be replaced by trigger switches, and may also function to detect whether the bottom cover 12 is closed or correctly closed.
The handheld dust collector that this embodiment provided, the detection of dust cup state not only detects when starting, at the dust collector normal operating time, also at the state of real-time detection dust cup, namely under the dust collector service condition, if the bottom of dust cup is opened or the gas leakage is serious, the control unit can in time close motor unit, warning unit sends corresponding warning information, remind the user to detect the dust cup, and in time solve the problem of dust cup, not only can reduce unnecessary electric energy waste, also avoid the user to do idle work, avoid wasting user's time, energy.
It should be noted that, when the dust collector is in the standby state, the warning unit continuously sends out warning information to ensure that the user can receive the warning information.
Compared with the prior art, the handheld dust collector provided by the embodiment has at least one of the following beneficial effects:
(1) The state of the dust cup 1 can be detected in real time through the detection unit 2, the control unit 3 controls the work of the dust collector according to the state of the dust cup 1, namely, the control unit 3 controls the opening or closing of the motor unit 4 according to the state of the dust cup 1, and the warning unit 6 timely reminds a user to check the dust cup 1, so that the motor unit 4 is prevented from being opened under the condition that the bottom end of the dust cup 1 leaks air, the power consumption caused by no electric energy can be avoided, the time and the physical strength of the user are saved, the negative pressure suction generated by the motor unit 4 under the working state can be ensured to be smoothly transmitted to the suction pipe 71 of the main shell 7 after passing through the dust cup 1, and the dust collection effect of the dust collector is ensured;
(2) By arranging a plurality of detection units 2, various air leakage conditions of the dust cup 1 can be detected, different air leakage problems can be solved by prompting a user through different warning information, the time spent by the user for checking the cause of air leakage is avoided, and the detection mode is simple, accurate and quick;
(3) The sensor of the detection unit 3 adopts a contact sensor, so that the accuracy and stability of the detection unit can be effectively improved;
(4) When the duration of the hand-held cleaner in the standby state exceeds the preset duration, the control unit 3 can turn off the power supply unit 5, so that unnecessary electric energy waste is avoided.
Example two
The embodiment provides a method for detecting the state of a dust collecting cup of a handheld dust collector, which is used for detecting the state of the dust collecting cup of the handheld dust collector and comprises the following steps:
step one: the detection unit 2 detects whether the dust cup 1 leaks air or not in real time, and transmits the generated signal to the control unit 3;
specifically, when the detecting unit 2 is located at the bottom end surface of the cup 11, the detecting unit 2 detects the state of the dust cup 1, generates a signal to be transmitted to the control unit 3 if the bottom cover 12 is detected, and does not transmit a signal to the control unit 3 if the bottom cover 12 is not detected; when the detecting unit 2 is located in the dust cup 1, if the motor unit 4 is in an on state, the detecting unit 2 sends the detected vacuum degree signal to the control unit 3 in real time, and if the motor unit 4 is in an off state, the detecting unit 2 does not send the signal to the control unit 3.
Step two: the control unit 3 controls the opening and closing of the motor unit 4 and whether to send instructions to the warning unit 6 according to the signals transmitted by the detection unit 2;
specifically, when the number n=1 of the detecting units 2, the detecting units 2 are disposed on the bottom end surface of the cup 11, if the detecting units 2 contact the bottom cover 12, a signal is generated and sent to the control unit 3, the control unit 3 analyzes that the bottom cover 12 is in a closed state, the control unit 3 controls the motor unit 4 to be turned on or maintains the motor unit 4 in an on state, and the dust collector is in a normal working state; if the detection unit 2 does not contact the bottom cover 12, the detection unit 2 does not generate a signal, the control unit 3 does not receive the signal, the control unit 3 analyzes that the bottom cover 12 is in an open state, the control unit 3 does not open or close the motor unit 4, and sends a corresponding instruction to the warning unit 6, and the dust collector is in a standby state.
When the number N of the detection units 2 is more than or equal to 2 and the detection units 2 are all arranged at the bottom unit of the cup 11, if the bottom cover 12 is in a correct closing state, all the detection units 2 are in contact with the bottom cover 12, all the detection units 2 send signals to the control unit 3, the control unit 3 receives the signals sent by all the detection units 2, analyzes that the bottom cover 12 is correctly closed, controls the motor unit 4 to be started or enables the motor unit 4 to be maintained in an opening state, and the dust collector is in a normal working state; if the bottom cover 12 is in an incorrect closed state, the sensor of at least one detection unit 2 can be in contact with the bottom cover 12, and the sensor of at least one detection unit 2 is not in contact with the bottom cover 12, so that only part of the detection units 2 send signals to the control unit 3, the control unit 3 receives the signals with the number less than N and the number greater than or equal to 1, the control unit 3 analyzes that the bottom cover 12 is not correctly closed, the control unit 3 does not open or close the motor unit 4, and sends corresponding instructions to the warning unit 6, and the dust collector is in a standby state; if the bottom cover 12 is in the open state, all the sensors of the detecting units 2 are not contacted with the bottom cover 12, all the detecting units 2 do not send signals to the control unit 3, the control unit 3 does not receive the signals sent by the detecting units 2, the bottom cover 12 is analyzed to be in the open state, the control unit 3 sends corresponding instructions to the warning unit 6, and the dust collector is in the standby state.
When the number N of the detecting units 2 is greater than or equal to 2, and at least one detecting unit 2 is disposed on the bottom end surface of the cup body 11, at least one detecting unit is disposed in the dust cup 1, and the detecting unit through the bottom end surface of the cup body 11 detects whether the bottom cover 12 is closed or not, or whether the bottom cover 12 is correctly closed, which is basically the same as the two cases, and will not be repeated here. The sensor of the detecting unit 2 arranged in the dust cup 1 is a vacuum sensor and is used for detecting the vacuum degree in the dust cup 1 in real time and transmitting a signal to the control unit 3 in time, when delta P is more than or equal to m (m is the minimum vacuum degree difference value which is set when the dust leakage degree of the dust cup influences the dust collection efficiency of the dust collector and is generally set when the dust collector leaves a factory), the control unit 3 turns off the motor unit 4 and sends a corresponding instruction to the warning unit 6, and the dust collector is in a standby state; when deltaP is less than m, the control unit 3 maintains the motor unit 4 in an on state, and the dust collector is in a normal working state.
Step three: when the dust cup 1 leaks air, the control unit 3 starts the motor unit 4, and the handheld dust collector is in a working state;
when the dust cup 1 is airtight, the control unit 3 turns off the motor unit 4 and sends an instruction to the warning unit 6, the warning unit 6 sends corresponding warning information according to the instruction, and the handheld dust collector is in a standby state;
when the standby time of the handheld dust collector exceeds the preset time, the control unit 3 turns off the power supply unit 5, and the handheld dust collector is in a power-off state.
When the cleaner is in the working state and the standby state, the detecting unit 2 detects the state of the dust cup 1 in real time and transmits the generated signal to the control unit 3 in time. When the dust collector is in a standby state, the warning unit 6 continuously sends out corresponding warning information to remind a user of treating the problem of the dust cup 1 as soon as possible.
Compared with the prior art, the dust collecting cup state detection method of the handheld dust collector has the same beneficial effects as those of the handheld dust collector provided in the first embodiment, and is not described in detail herein.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. The handheld dust collector is characterized by comprising a dust collection cup (1), a detection unit (2), a control unit (3), a motor unit (4), a power supply unit (5), a warning unit (6) and a main shell (7);
the detection unit (2) can detect four air leakage conditions of the dust cup (1) in real time and send the generated signals to the control unit (3), wherein the four air leakage conditions comprise that the bottom cover (12) is not closed; a gap exists between the bottom cover (12) and the cup body (11); aging or deformation of the seal (122); the bottom cover (12) and the cup body (11) are damaged;
the control unit (3) controls the on or off of the motor unit (4) and whether to send an instruction to the warning unit (6) according to the signal transmitted by the detection unit (2);
the warning unit (6) sends out corresponding warning information according to the instruction of the control unit (3);
the number N of the detection units (2) is more than or equal to 2, at least two detection units (2) are embedded in different positions of the bottom end face of the cup body (11) of the dust cup (1), and a sensor of the detection unit (2) generates a signal when contacting with the bottom cover (12) of the dust cup (1);
at least one detection unit (2) is arranged in the dust cup (1);
a sensor of the detection unit (2) arranged on the bottom end surface of the cup body (11) generates a signal when contacting with a bottom cover (12) of the dust cup (1);
the sensor of the detecting unit (2) arranged in the dust cup (1) is a vacuum sensor.
2. A hand-held cleaner according to claim 1, characterised in that the dust cup (1) is mounted on the main housing (7), that the dust cup (1) comprises a cup body (11) and a bottom cover (12), that the bottom cover (12) is arranged over a bottom port of the cup body (11), and that the bottom cover (12) is detachably connected to the bottom end of the cup body (11).
3. The hand-held cleaner according to claim 2, wherein the rear end of the bottom cover (12) is rotatably connected to the cup body (11), and the front end of the bottom cover (12) is detachably connected to the cup body (11).
4. A hand-held cleaner according to claim 3, wherein the rear end of the bottom cover (12) is hinged to the rear side of the bottom end surface of the cup body (11), and the front end of the bottom cover (12) is detachably connected to the front side of the bottom end surface of the cup body (11) through a snap fastener (121);
the cup body (11) is provided with a buckling part (111) matched with the buckling piece (121).
5. A hand-held vacuum cleaner according to claim 1, characterised in that the detection unit (2) comprises a sensor connected to the control unit (3), which sensor is able to detect whether the dust cup (1) is leaking and to transmit the generated signal to the control unit (3).
6. The hand-held vacuum cleaner according to any one of claims 1 to 5, wherein the control unit (3) comprises an information module, a clock module and a master control module, the master control module being connected to the information module and the clock module, respectively;
the information module is used for receiving and processing the signals sent by the detection unit (2) and transmitting the processed signal data to the main control module;
the clock module is used for recording the duration of the handheld dust collector in a standby state in real time and converting the duration into data and transmitting the data to the main control module;
the main control module controls the starting or closing of the motor unit (4) according to the received signal data and whether to send an instruction to the warning unit (6); and the main control module controls whether the power supply unit (5) is closed or not according to the duration data.
7. A hand-held cleaner according to any one of claims 1 to 5, characterised in that the warning unit (6) is capable of emitting one or more of light, sound, text, images.
8. A method for detecting the status of a dust cup of a hand-held cleaner, for detecting the status of a dust cup of a hand-held cleaner according to any one of claims 1 to 7, comprising the steps of:
step one: the detection unit (2) detects whether the dust cup (1) leaks air or not in real time, and transmits the generated signal to the control unit (3);
step two: the control unit (3) controls the on or off of the motor unit (4) and whether to send instructions to the warning unit (6) according to the signals transmitted by the detection unit (2);
step three: when the dust cup (1) is airtight, the control unit (3) starts the motor unit (4), and the handheld dust collector is in a working state;
when the dust cup (1) leaks air, the control unit (3) turns off the motor unit (4) and simultaneously sends a command to the warning unit (6), the warning unit (6) sends corresponding warning information according to the command, and the handheld dust collector is in a standby state;
when the standby time of the handheld dust collector exceeds the preset time, the control unit (3) turns off the power supply unit (5), and the handheld dust collector is in a power-off state.
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