CN116223892A - Dust collection pile detection circuit and dust collection pile - Google Patents

Dust collection pile detection circuit and dust collection pile Download PDF

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Publication number
CN116223892A
CN116223892A CN202211699283.4A CN202211699283A CN116223892A CN 116223892 A CN116223892 A CN 116223892A CN 202211699283 A CN202211699283 A CN 202211699283A CN 116223892 A CN116223892 A CN 116223892A
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China
Prior art keywords
detection
module
current
exhaust fan
dust
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CN202211699283.4A
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Chinese (zh)
Inventor
谢添荣
叶梦灵
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Huizhou Haihong Technology Co ltd
Huizhou Haihong Xinchuang Technology Co ltd
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Huizhou Haihong Technology Co ltd
Huizhou Haihong Xinchuang Technology Co ltd
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Priority to CN202211699283.4A priority Critical patent/CN116223892A/en
Publication of CN116223892A publication Critical patent/CN116223892A/en
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    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4091—Storing or parking devices, arrangements therefor; Means allowing transport of the machine when it is not being used
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4025—Means for emptying
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • A47L2201/02—Docking stations; Docking operations
    • A47L2201/024—Emptying dust or waste liquid containers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Ventilation (AREA)

Abstract

The application discloses a dust collecting pile detection circuit, relates to the field of intelligent household appliances, and in particular relates to a dust collecting pile detection circuit and a dust collecting pile; it is connected with the air exhauster, includes: the device comprises a control module, a detection module and a power supply module; the power supply module is used for respectively supplying power to the control module, the detection module and the exhaust fan; the detection module comprises a current detection IC, wherein the current detection IC is connected with the exhaust fan in series and is used for acquiring detection current of the exhaust fan and generating a current detection signal; the control module is connected with the current detection IC and is used for judging whether the dust box of the dust collecting pile is full according to the current detection signal; the state of the dust box is judged by detecting the working current of the fan, the realized circuit is simple in structure, the air tightness requirement of the pipeline is low, the structural design is simplified, and the cost can be effectively reduced.

Description

Dust collection pile detection circuit and dust collection pile
Technical Field
The application relates to the field of intelligent household appliances, in particular to a dust collecting pile detection circuit and a dust collecting pile.
Background
The floor sweeping robot, also called automatic sweeping machine, intelligent dust collector, robot dust collector, etc., is one kind of intelligent household appliance and can complete floor cleaning automatically inside room with certain artificial intelligence. Generally, the brushing and vacuum modes are adopted, and the ground sundries are firstly absorbed into the garbage storage box of the ground, so that the function of cleaning the ground is completed.
In the prior art, the robot of sweeping floor all is equipped with corresponding fills electric pile, and the robot of sweeping floor is accomplished the task of sweeping floor after, can get back to automatically and fill electric pile and charge, wherein, partly fill electric pile still is equipped with and collects the box, forms album dirt stake, and it draws the air in the dirt box through fan and exhaust duct, leads to dirt box and dust collecting duct air to reduce, and the dust of the machine of sweeping floor the inside is inhaled through exhaust duct and is collected in the box. At present, for the collecting box, whether the dust bag is full or not is judged by detecting the air pressure of an air suction pipeline near the dust box through an air pressure sensor: the air pressure sensor on the main board is connected to the ventilating duct of the dust box accessory through software by the structural sealing piece; thus, the air pressure of the ventilating duct near the dust box can be detected; if the dust box is full of dust and garbage, the ventilation opening of the dust box is blocked, and the ventilation pipeline is only partially or rarely supplemented with air, so that the air pressure of the ventilation pipeline is obviously reduced; the dust box is good in effect by detecting whether the dust box is full or not through the amplitude of the air pressure change, but the implementation mode is complex, and the dust box has the following defects: 1. the air pressure sensor IC is relatively expensive; 2. the sealing element and the hose are required to be added, so that the air tightness requirement is high, and the structural design is complex; 3. the assembly process is many, and overall cost is high.
Disclosure of Invention
The invention aims to avoid the defects in the prior art and provide a detection circuit which can be beneficial to simplifying the structure of a dust collecting pile and reducing the cost of the dust collecting pile.
The aim of the invention is achieved by the following technical scheme:
according to an aspect of the present disclosure, there is provided a dust collecting pile detection circuit to which an exhaust fan is connected, the dust collecting pile detection circuit including: the device comprises a control module, a detection module and a power supply module; the power supply module is used for respectively supplying power to the control module, the detection module and the exhaust fan; the detection module comprises a current detection IC, wherein the current detection IC is connected with the exhaust fan in series and is used for acquiring detection current of the exhaust fan and generating a current detection signal; the control module is connected with the current detection IC and is used for judging whether the dust box of the dust collecting pile is full or not according to the current detection signal.
Specifically, the exhaust fan comprises a first end and a second end; the first end of the exhaust fan is connected with the power module, and the second end of the exhaust fan is connected with the current detection IC.
More specifically, the current detection IC includes a first detection terminal, a second detection terminal, and a signal output terminal; the first detection end is connected with the second end of the exhaust fan, the second detection end is connected with the power module, and the signal output end is connected with the control module.
As described above, the current detection IC employs a hall effect current sensor.
Above, still be connected with the switch triode between air exhauster's first end and the power module.
Specifically, the detection module further comprises a first optocoupler chip; the first optocoupler chip comprises a control end and an output end; the control end is connected with the control module, and the output end is connected with the control electrode of the switching triode.
More specifically, the detection module further comprises a second optocoupler chip; the second optocoupler chip is respectively connected with the power supply module and the control module and is used for carrying out zero crossing detection on the power supply module, generating corresponding zero crossing detection signals and sending the zero crossing detection signals to the control module.
Above, detection module still includes current limiting filter module, and current limiting filter module is parallelly connected with the air exhauster.
Further, the current-limiting filter module comprises a current-limiting resistor and a filter capacitor, and the current-limiting resistor and the filter capacitor are connected in series.
According to another aspect of the disclosure, there is provided a dust collecting pile having a main control circuit board and an exhaust fan built therein, the main control circuit board including a dust collecting pile detection circuit as described above.
The invention has the beneficial effects that: a dust collection stake detection circuit is connected with the air exhauster, and it includes: the device comprises a control module, a detection module and a power supply module; the power supply module is used for respectively supplying power to the control module, the detection module and the exhaust fan; the detection module comprises a current detection IC, wherein the current detection IC is connected with the exhaust fan in series and is used for acquiring detection current of the exhaust fan and generating a current detection signal; the control module is connected with the current detection IC and is used for judging whether the dust box of the dust collecting pile is full according to the current detection signal; the state of the dust box is judged by detecting the working current of the fan, the realized circuit is simple in structure, the air tightness requirement of the pipeline is low, the structural design is simplified, and the cost can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a dust collector detection circuit according to an embodiment of the present application;
FIG. 2 is a schematic circuit diagram of a detection module according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the relationship between the working current of the exhaust fan and the intake air of the exhaust fan according to the embodiment of the present application;
fig. 4 is a waveform diagram of sampling voltages of the current detection IC of the embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described by implementation with reference to the accompanying drawings in the examples of the present application, and it is apparent that the described examples are some, but not all, examples of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention in combination with the specific contents of the technical scheme.
In the description of the present invention, a description of the terms "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., means that a particular feature or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
As shown in fig. 1 and 2, according to an aspect of the present disclosure, there is provided a dust collecting pile detection circuit to which an exhaust fan is connected, characterized in that the dust collecting pile detection circuit includes: control module, detection module and power module.
The power module is used for supplying power to the control module, the detection module and the exhaust fan respectively.
The detection module comprises a current detection IC, wherein the current detection IC adopts a Hall effect current sensor, and is connected in series with the exhaust fan and used for acquiring detection current of the exhaust fan and generating a current detection signal;
the control module is connected with the current detection IC and is used for judging whether the dust box of the dust collecting pile is full or not according to the current detection signal.
In the diagram, current represents the working Current of the blower, F low represents the air intake, and there is a certain proportional relationship between the working Current of the blower and the air intake, when the dust box is empty, the blower completely draws air from the dust box, the air intake is maximum, and the working Current of the blower is maximum; when the dust box is full, the air inlet quantity is reduced, and the working current of the exhaust fan is reduced; therefore, the state of the dust box can be judged according to the working current of the exhaust fan.
In this embodiment, the current detection signal output by the current detection IC is an analog signal, and the control module calculates the waveform amplitude or area of the current detection signal, so as to determine whether the exhaust fan is in a normal working state (i.e. the dust box is not full) by comparing with the set amplitude threshold or area threshold. When the waveform amplitude or area of the current detection signal is larger than the set amplitude threshold or area threshold, judging that the exhaust fan is in a normal working state, and the dust box of the dust collecting pile is not full; when the waveform amplitude or area of the current detection signal is smaller than or equal to a set amplitude threshold or area threshold, judging that the exhaust fan is in an abnormal working state, and generating a corresponding prompting signal or alarm signal to remind a user of cleaning the dust box when the dust box of the dust collecting pile is full.
Specifically, according to ohm's law, i=u/R, the current is converted to a voltage through a sampling resistor, u= I R, where I i For the working current of the fan, R is the resistance value of a sampling resistor arranged in the current detection IC, and the waveform obtained at the detection end is shown in a figure 4.
In the period T, discretizing the voltage of the output end into n sampling points, wherein the obtained voltage value is as follows:
Figure BDA0004023368240000041
wherein U is T The smaller the air inlet of the fan, the more full the dust box is, when U T When the dust box is smaller than the set threshold value, the dust box can be judged to be full; recording the voltage value in the T period as U T base asThe reference voltage value is detected.
More specifically, the method for detecting the dust box of the dust collecting pile comprises the following steps:
s1: collecting working current of an exhaust fan and generating a corresponding current detection signal;
s2: judging whether the waveform amplitude (or area) of the current detection signal is larger than a set amplitude threshold (or area threshold); if yes, judging that the exhaust fan is in a normal working state, and repeating the step S1; if not, judging that the dust box is full, generating a corresponding prompting signal (or an alarm signal), and simultaneously entering step S3;
s3: and (5) disconnecting the power input of the exhaust fan to ensure that the exhaust fan does not work.
Specifically, the exhaust fan comprises a first end (i.e. a positive electrode) and a second end (i.e. a negative electrode); the current detection IC comprises a first detection end (namely a positive electrode thereof), a second detection end (namely a negative electrode thereof) and a signal output end; the first end of air exhauster is connected with power module's positive pole, and first detection end is connected with air exhauster's second end, and the second detection end is connected with power module's negative pole, and the signal output part is connected with control module, output current detection signal.
More specifically, a switching triode Q1 is also connected between the first end of the exhaust fan and the power supply module. The detection module further comprises a first optocoupler chip U5, the first optocoupler chip U5 adopts a chip with the model CT3052, and the first optocoupler chip U5 comprises a control end and an output end; the control end is connected with the control module, and the output end is connected with the control electrode of the switching triode Q1. When the exhaust fan is in an abnormal state, the control module cuts off the switching triode Q1 through the first optocoupler chip U5 and cuts off the power input of the exhaust fan.
More specifically, the detection module further includes a second optocoupler chip U2; the second optocoupler chip U2 is respectively connected with the power supply module and the control module, and is used for carrying out zero-crossing detection on the power supply module, generating corresponding zero-crossing detection signals and sending the zero-crossing detection signals to the control module.
More specifically, the detection module further comprises a current-limiting filtering module, and the current-limiting filtering module is connected with the exhaust fan in parallel; the current-limiting filter module comprises a current-limiting resistor R20 and a filter capacitor C11, and the current-limiting resistor R20 and the filter capacitor C11 are connected in series.
According to another aspect of the disclosure, there is provided a dust collecting pile having a main control circuit board and an exhaust fan built therein, the main control circuit board including a dust collecting pile detection circuit as described above.
The integrated units described in this application may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as stand alone products. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, etc., which can store program codes.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will appreciate that the present application is not limited to the particular embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, the scope of which is defined by the scope of the appended claims.

Claims (10)

1. A dust collection stake detection circuit is connected with the air exhauster, its characterized in that, dust collection stake detection circuit includes: the device comprises a control module, a detection module and a power supply module;
the power supply module is used for respectively supplying power to the control module, the detection module and the exhaust fan;
the detection module comprises a current detection IC, wherein the current detection IC is connected with the exhaust fan in series and is used for acquiring detection current of the exhaust fan and generating a current detection signal;
the control module is connected with the current detection IC and is used for judging whether the dust box of the dust collecting pile is full or not according to the current detection signal.
2. A dust collector inspection circuit according to claim 1, wherein:
the exhaust fan comprises a first end and a second end;
the first end of the exhaust fan is connected with the power supply module, and the second end of the exhaust fan is connected with the current detection IC.
3. A dust collector inspection circuit according to claim 2, wherein:
the current detection IC comprises a first detection end, a second detection end and a signal output end;
the first detection end is connected with the second end of the exhaust fan, the second detection end is connected with the power module, and the signal output end is connected with the control module.
4. A dust collector inspection circuit according to claim 1, 2 or 3, wherein:
the chip of the current detection IC adopts a Hall effect current sensor.
5. A dust collector inspection circuit according to claim 2 or 3, wherein:
and a switching triode is further connected between the first end of the exhaust fan and the power supply module.
6. The dust collector inspection circuit of claim 5 wherein:
the detection module further comprises a first optocoupler chip; the first optocoupler chip comprises a control end and an output end;
the control end is connected with the control module, and the output end is connected with the control electrode of the switch triode.
7. The dust collector inspection circuit of claim 6 wherein:
the detection module further comprises a second optocoupler chip;
the second optocoupler chip is respectively connected with the power supply module and the control module and is used for carrying out zero crossing detection on the power supply module, generating corresponding zero crossing detection signals and sending the zero crossing detection signals to the control module.
8. A dust collector inspection circuit according to claim 6 or 7 wherein:
the detection module further comprises a current limiting and filtering module, and the current limiting and filtering module is connected with the exhaust fan in parallel.
9. The dust collector inspection circuit of claim 8 wherein:
the current-limiting filter module comprises a current-limiting resistor and a filter capacitor, and the current-limiting resistor and the filter capacitor are connected in series.
10. The utility model provides a dust collection stake, the dust collection stake embeds has main control circuit board and air exhauster, its characterized in that: the main control circuit board comprises a dust-pile detection circuit as claimed in claims 1 to 9.
CN202211699283.4A 2022-12-28 2022-12-28 Dust collection pile detection circuit and dust collection pile Pending CN116223892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211699283.4A CN116223892A (en) 2022-12-28 2022-12-28 Dust collection pile detection circuit and dust collection pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211699283.4A CN116223892A (en) 2022-12-28 2022-12-28 Dust collection pile detection circuit and dust collection pile

Publications (1)

Publication Number Publication Date
CN116223892A true CN116223892A (en) 2023-06-06

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