CN111714035B - Dust collecting device, robot system, discharging device, and discharging method - Google Patents
Dust collecting device, robot system, discharging device, and discharging method Download PDFInfo
- Publication number
- CN111714035B CN111714035B CN202010432800.6A CN202010432800A CN111714035B CN 111714035 B CN111714035 B CN 111714035B CN 202010432800 A CN202010432800 A CN 202010432800A CN 111714035 B CN111714035 B CN 111714035B
- Authority
- CN
- China
- Prior art keywords
- power plug
- signal
- fan
- electric signal
- preparation period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- 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
- A47L11/4002—Installations of electric equipment
-
- 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
- A47L11/4002—Installations of electric equipment
- A47L11/4005—Arrangements of batteries or cells; Electric power supply arrangements
-
- 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
- A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
-
- 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
-
- 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
- A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
-
- 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
- A47L11/40—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
- A47L11/4094—Accessories to be used in combination with conventional vacuum-cleaning devices
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses dust collecting equipment, robot system, discharge apparatus and discharge method, dust collecting equipment includes: a power plug; the energy storage element is connected with the power plug and is used for inhibiting electromagnetic interference; the fan is connected with the power plug through the energy storage element and is used for generating suction airflow so as to collect dust into the dust collection barrel; the safety discharge device is used for acquiring a first electric signal flowing through the power plug and determining whether the power plug is disconnected with an external power supply or not according to the first electric signal; and when the disconnection is determined, controlling the fan to operate so as to consume the residual electric energy carried by the energy storage element on the power plug. The embodiment of the application consumes the residual electric energy of the plug by the fan, has high discharging efficiency, can accelerate the discharging of the power plug, and does not need to consider the parameter selection of the discharging electronic element.
Description
Technical Field
The application belongs to the technical field of electric power, and particularly relates to a dust collecting device, a robot system, a discharging device and a discharging method.
Background
In the prior art, an alternating current device is provided with an element for storing electric energy at a power input end so as to achieve the purpose of stably obtaining the electric energy from a power grid, and the energy storage element can cause that after a power plug is pulled out of a jack, the plug can have the residual electric energy; the voltage on the plug reaches the voltage of the power grid (generally 220V), which exceeds the safety voltage range of the industry-specified 36V ac, so the electrical safety regulations require the following:
the time for the input port voltage to discharge to the safe voltage peak value of 42.4V after the power-off of the equipment does not exceed 1S.
In a circuit design of a general ac device, some electronic components such as a resistor and a capacitor are provided in a circuit, so that the residual electric energy on the plug is consumed by the electronic components such as the resistor and the capacitor. This dependence on electrons consumes electrical energy, the parameters of the discharge electronics are more difficult to select, and the discharge efficiency is lower.
Disclosure of Invention
In order to solve or improve the problems in the prior art, the application provides a dust collecting device, a robot system, a discharging device and a discharging method.
In one embodiment of the present application, there is provided a dust collecting apparatus including:
a power plug;
the energy storage element is connected with the power plug and is used for inhibiting electromagnetic interference;
the fan is connected with the power plug through the energy storage element and used for generating suction airflow so as to collect dust into the dust collection barrel;
the safety discharge device is used for acquiring a first electric signal flowing through the power plug and determining whether the power plug is disconnected with an external power supply or not according to the first electric signal; and when the disconnection is determined, controlling the fan to operate so as to consume the residual electric energy carried by the energy storage element on the power plug.
In one embodiment of the present application, there is provided a robot system including:
a robot having an ability to autonomously move and collect dust;
the dust collecting equipment comprises a power plug, an energy storage element, a fan, a dust collecting barrel and a safety discharging device, and is used for starting the fan to suck dust collected by the robot into the dust collecting barrel after the dust collecting equipment is in butt joint with the robot; wherein the content of the first and second substances,
the energy storage element is connected with the power plug and used for inhibiting electromagnetic interference;
the fan is connected with the power plug through the energy storage element;
the safety discharge device is used for acquiring a first electric signal flowing through the power plug and determining whether the power plug is disconnected with an external power supply or not according to the first electric signal; and when the disconnection is determined, controlling the fan to operate so as to consume the residual electric energy carried by the energy storage element on the power plug.
In one embodiment of the present application, there is provided a discharge device including:
the power plug is electrically connected with an external power supply to supply power to the load;
a signal acquisition circuit for acquiring a first electrical signal flowing through the power plug;
the control device is electrically connected with the signal acquisition circuit and the load and is used for entering a safe discharge preparation period when the first electric signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period; and if the first electric signal does not recover to be stable at the end of the safe discharge preparation period, determining that the power plug is disconnected from an external power supply, and sending a control command to the load to enable the load to operate and consume residual electric energy on the power plug.
In one embodiment of the present application, there is provided a discharging method including:
acquiring a first electric signal flowing through a power plug;
entering a safe discharge preparation period when the first electric signal fluctuates;
continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period;
and if the first electric signal does not recover to be stable at the end of the safe discharge preparation period, determining that the power plug is disconnected from an external power supply, and sending a control command to a load to enable the load to operate and consume residual electric energy on the power plug.
According to the technical scheme provided by the embodiment of the application, whether the power plug is disconnected with an external power supply is determined by acquiring a first electric signal flowing through the power plug and according to the first electric signal, and when the disconnection is determined, a fan of the dust collecting equipment is controlled to operate so as to consume residual electric energy on the power plug, wherein the residual electric energy is caused by an energy storage element; so that the power plug can discharge rapidly to meet the requirement of safe voltage. The embodiment of the application consumes the residual electric energy of the plug by the fan, has high discharging efficiency, can accelerate the discharging of the power plug, and does not need to consider the parameter selection of the discharging electronic element.
In the technical scheme provided by another embodiment of the application, a safe discharge preparation period is entered when a first electric signal flowing through a power plug fluctuates, and the first electric signal of the power plug is continuously monitored in the preparation period; determining whether the first electrical signal has recovered to be stable at the end of the preparation period; if the power plug is not recovered to be stable, the power plug is disconnected from the external power supply, and the load is controlled to operate at the moment, so that the residual electric energy on the power plug is consumed by the load. Compared with the scheme of discharging electronic elements by adopting resistors and capacitors in the prior art, the technical scheme provided by the embodiment of the application has the advantages of high load power and high discharging efficiency, and the parameter selection of the discharging electronic elements does not need to be considered; the implementation scheme is simple and easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:
FIG. 1 is a diagram of a discharge circuit in the prior art;
FIG. 2 is a schematic structural view of a dust collecting apparatus according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of another embodiment of a dust collecting apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a robot system according to an embodiment of the present disclosure;
FIG. 5 is a schematic product structure diagram of a robotic system provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a discharge device according to an embodiment of the present application;
fig. 7 is a schematic flowchart of a discharging method according to an embodiment of the present application;
FIG. 8a is a schematic diagram of a slow discharge of a power plug without a safety discharge device or circuit;
FIG. 8b is a schematic diagram of a photoelectric coupler converting an AC signal to a high/low level signal;
FIG. 8c is a signal diagram showing a specific example of the occurrence of fluctuations in the first electrical signal;
FIG. 8d is a schematic of the reverse voltage generated by the fan;
fig. 8e is a schematic signal waveform diagram of the reverse voltage generated by the fan.
Detailed Description
One implementation in the prior art is to use resistors R1, R2, R3 as shown in fig. 1 to release the electrical energy remaining on the plug; this method requires that the residual power of the power plug is discharged below the safety voltage (e.g. 42.4V) within the time required by safety regulations by adjusting the capacitance of the capacitor CX1 and the resistances of the resistors R1, R2 and R3. CX1 is connected to the energy storage element, and the energy storage element is used for connecting the post-stage circuit. R1, R2, R3 and CX1 can be understood as discharge circuits, and when a user pulls out the plug, the residual electric energy of the power plug is released by R1, R2, R3 and CX 1. However, if the resistance value is too large, the time required for discharging is too long, and the time required by safety regulation cannot be met; however, if the resistance values of R1, R2, and R3 are too small, the time required for discharge is shortened, and the power consumption consumed by the resistors is also increased. This makes it difficult to select a reasonable resistance parameter for devices requiring low power consumption standby power.
To this end, the present application provides the following embodiments to solve or improve the problems in the prior art. In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a" and "an" typically include at least two, but do not exclude the presence of at least one.
In some of the flows described in the specification, claims, and above-described figures of the present application, a number of operations are included that occur in a particular order, which operations may be performed out of order or in parallel as they occur herein. The sequence numbers of the operations, e.g., 101, 102, etc., are merely used to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different. It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 2 is a schematic structural diagram of a dust collecting apparatus according to an embodiment of the present disclosure. The dust collecting apparatus includes: a power plug 21, an energy storage element 22, a fan 23 and a safety discharge device 24. Wherein, the energy storage element 22 is connected with the power plug 21 and is used for suppressing electromagnetic interference. The fan 23 is connected with the power plug 21 through the energy storage element 22 and is used for generating suction airflow so as to collect dust into the dust collection barrel. A safety discharge device 24. The safety discharging device 24 is used for acquiring a first electric signal flowing through the power plug and determining whether the power plug is disconnected from an external power supply or not according to the first electric signal; and when the disconnection is determined, controlling the fan to operate so as to consume the residual electric energy carried by the energy storage element on the power plug.
In one embodiment, as shown in fig. 2, the safety discharge device 24 includes: a signal acquisition circuit 241 and a control device 242. The signal acquisition circuit 241 is configured to acquire a first electrical signal flowing through the power plug 21. The control device 242 is electrically connected with the signal acquisition circuit 241 and the fan 23 and is used for determining whether the power plug 21 is disconnected with an external power supply according to the first electric signal; and when the power plug 21 is determined to be disconnected from the external power supply, controlling the fan 23 to operate so as to consume the residual electric energy on the power plug 21 due to the energy storage element 22.
In the technical scheme provided by the embodiment, whether the power plug is disconnected with an external power supply is determined by acquiring a first electric signal flowing through the power plug and according to the first electric signal, and when the disconnection is determined, a fan of the dust collecting device is controlled to operate so as to consume residual electric energy on the power plug, wherein the residual electric energy is caused by an energy storage element; so that the power plug can discharge rapidly to meet the requirement of safe voltage. The embodiment of the application consumes the residual electric energy of the plug by the fan, has high discharging efficiency, can accelerate the discharging of the power plug, and does not need to consider the parameter selection of the discharging electronic element.
In an implementation solution, the signal obtaining circuit 241 in the above embodiment may be implemented by using a photoelectric coupler. As shown in fig. 3, the signal acquisition circuit 241 includes a photocoupler. The photocoupler includes a light emitter 2411 and a light receiver 2412. The light emitter 2411 is electrically connected with the power plug 21; the light receiver 2412 is electrically connected to the control device 242.
The energy storage element 22 in this embodiment is used to suppress electromagnetic interference, so as to stably obtain electric energy from an external power source (such as a power grid). The specific implementation of the energy storage element 22 may vary from device to device. One implementation of the energy storage element 22 in the dust collecting device in this embodiment, as shown in fig. 3, includes: a first filter coil 221, a second filter coil 222 and a capacitor 223. Wherein the first filter coil 221 includes a first end 2211 and a second end 2212. The first end 2211 is electrically connected to the positive pin of the power plug 21. The second filter coil 222 includes a third terminal 2221 and a fourth terminal 2222, and the third terminal 2221 is electrically connected to the negative pin of the power plug 21. The positive terminal of the capacitor 223 is electrically connected to the second terminal 2212 of the first filter coil 221, and the negative terminal is electrically connected to the fourth terminal 2222 of the second filter coil 222.
In the case of the above-mentioned photocoupler, in a concrete implementation, as shown in fig. 3, the anode of the photocoupler is electrically connected to the positive pin of the power plug 21, and the cathode is electrically connected to the negative pin of the power plug 21. The photocoupler may be used as an ac signal conversion module, and may convert an ac signal (e.g., an upper electrical signal in fig. 8 b) into a high-low level signal (e.g., a lower electrical signal in fig. 8 b), and output the high-low level signal to the control device 242 as the acquired first electrical signal. The input electrical signal of the photocoupler drives a light emitter (such as a light emitting diode) to emit light with a certain wavelength, which is received by a light receiver to generate a photocurrent, and the photocurrent is further amplified to obtain a first electrical signal, which is output to the control device 242.
In an alternative, referring to fig. 3, the control device 242 provided in this embodiment may be implemented as follows. Namely, the control device includes: singlechip 2421 and silicon controlled rectifier 2422. The single chip 2421 is electrically connected to the signal obtaining circuit 241, and may specifically be connected to a photocoupler, and is configured to generate a control signal when it is determined that the power plug 21 is disconnected from the external power supply. And the silicon controlled rectifier 2422 is connected with the single chip microcomputer 2421 and the fan 23 and is used for driving the fan 23 to operate according to the control signal.
In an implementable solution, the safety discharging device 24, when determining whether the power plug is disconnected from the external power supply according to the first electrical signal, is specifically configured to:
entering a safe discharge preparation period when the first electric signal fluctuates;
continuously monitoring a first electrical signal flowing through the power plug 21 during the safe discharge preparation period;
if the first electrical signal does not return to being stable at the end of the safe discharge preparation period, it is determined that the power plug 21 is disconnected from the external power source.
The above process may be implemented by the control device 242 (e.g., the single-chip computer 2421) in the safety discharging device 24.
Optionally, the value range of the safe discharge preparation period may be 200 to 600 ms. For example, in the present embodiment, the safe discharge preparation period may be 300ms, 500ms, or the like. In this embodiment, a safe discharge preparation period is set to avoid false triggering due to fluctuation of the ac power supply. I.e. the first electrical signal flowing through the power plug is continuously monitored during this safety preparation period. Taking the safe discharge preparation period as 500ms as an example, when the single chip microcomputer monitors that the first electric signal fluctuates, the safe discharge preparation period is entered, namely, the 500ms continuous monitoring program is started. If the first electric signal flowing through the power plug is found to be stable after being continuously monitored for 500ms, the voltage of the external power supply (such as a power grid) is considered to be short-time fluctuation; if the first electrical signal flowing through the power plug does not return to stability after the continuous monitoring for 500ms, the power plug may be considered to be disconnected from the external power source (e.g., a power grid).
And judging whether the first electric signal is stable or not, wherein the judgment can be carried out by judging whether the signal period and the signal size of the first electric signal meet the set stability requirement or not. For example, when the power plug is electrically connected to an external power source, the period of the stable first electrical signal flowing through the power plug is f, the high level is V +, and the low level is V-. Thus, the stability requirement can be determined based on these parameters (period f, high level V +, low level V-). In the subsequent judgment process, if one of the signal period, the high level value and the low level value of the first electric signal does not meet the stability requirement, the first electric signal is considered to be fluctuated and unstable.
Further, the mounting discharge device 24 may also be configured to:
monitoring whether the signal period and the signal size of a first electric signal flowing through the power plug meet the stability requirement before the safe discharge preparation period is finished;
if the signal period and the signal size of a first electric signal flowing through the power plug in a preset time period before the safety discharge preparation period is ended meet the stability requirement, determining that the first electric signal is recovered to be stable;
wherein the duration of the preset time period is less than the duration of the safe discharge preparation period.
Likewise, the above process may be implemented by the control device 242 (e.g., the single-chip microcomputer 2421) in the safety discharging device 24.
In specific implementation, if the safe discharge preparation period is 500ms, the preset time period may be 100ms, 200ms, and the like. It can be understood that, in order to avoid the occurrence of misjudgment, the technical solution provided in this embodiment leaves a safe discharge preparation period in which the first electrical signal flowing through the power plug is continuously monitored. The safe discharge preparation period needs to reduce the probability of misjudgment while ensuring that the safe discharge duration is within a reasonable range. The safe discharge preparation period is not suitable to be too long, and the final safe discharge duration of the power plug can be influenced by the too long safe discharge preparation period; the short-time fluctuation of the alternating current signal may cause misjudgment, so that the fan is started by mistake. Therefore, after comprehensive consideration, the safe discharge preparation period provided by the embodiment of the application can be determined to be a value within a range of 200ms to 500 ms. The preset period may be determined based on the safe discharge preparation period.
The technical scheme provided by the embodiment adopts the fan as an energy consumption device to consume the residual electric energy of the power plug. If the discharge time is too long, the problem that the fan is started by mistake when the user pulls out the plug to replace the power strip can occur. For example, the discharge time is 1 s; the user only wants to replace one power strip, and the action of pulling out the power strip from one power strip and then inserting the power strip into another adjacent power strip is completed within 0.8 s; after 0.5s (safe discharge preparation period) from 0s, controlling the fan to start to run to consume residual electric energy due to the fact that the plug is judged to be pulled out; however, the power plug is inserted into the power strip in 0.8s, and the power supply fan can always run at the moment, so that the problem of false start of the fan is caused. But if the discharge time is too short, a reverse voltage is generated. As shown in fig. 8d, the reverse voltage is due to the inductance characteristic of the fan itself, and when the stable power supply signal on the left side in fig. 8d disappears, a reverse inductance voltage (referred to as a reverse voltage for short) is generated inside the fan itself after absorbing the electric quantity. The reverse voltage may exceed the range of the safe voltage. The voltage in the direction can reach about 80V through actual measurement. Therefore, the discharge time of the fan energy consumption needs to be accurately controlled, and the reverse voltage generated by the fan needs to be eliminated. The discharge time of the energy consumption of the fan can be controlled by selecting a reasonable safe discharge preparation period and operation power (such as low-power operation or high-power operation). The reverse voltage can be filtered by means of software. That is, the signal obtaining circuit 241 in this embodiment, may be further configured to obtain a second electrical signal flowing through the blower 23 after determining that the power plug 21 is disconnected from the external power supply. Correspondingly, the control device 242 is further configured to determine whether the second electrical signal is a reverse voltage signal generated by the fan 23 according to the second electrical signal; and when the second electric signal is determined to be the reverse voltage signal generated by the fan 23, filtering the reverse voltage signal.
Here, it should be noted that: for a specific implementation manner of filtering the reverse voltage signal in a software manner, reference may be made to relevant contents in the prior art, which is not specifically limited in this embodiment.
Fig. 4 and 5 are schematic structural diagrams of a robot system according to an exemplary embodiment of the present disclosure. The robot system includes: a robot 41 and a dust collecting device 42. Among them, the robot 41 has the capability of autonomously moving and collecting dust. Referring to fig. 4, the dust collecting apparatus 42 includes: the power plug 21, the energy storage element 22, the fan 23, the dust collection barrel 43 and the safety discharging device 24 are used for starting the fan 23 to suck the dust collected by the robot 41 into the dust collection barrel 43 after the robot 41 is in butt joint. The energy storage element 22 is connected to the power plug 21 for suppressing electromagnetic interference. The fan 23 is connected with the power plug 21 through the energy storage element 22. The safety discharging device 24 is used for acquiring a first electric signal flowing through the power plug and determining whether the power plug is disconnected from an external power supply or not according to the first electric signal; and when the disconnection is determined, controlling the fan to operate so as to consume the residual electric energy carried by the energy storage element on the power plug.
In an implementable solution, said safety discharge device 24 comprises: a signal acquisition circuit 241 and a control device 242. Wherein the signal acquiring circuit 241 is used for acquiring the first electric signal flowing through the power plug 21. The control device 242 is electrically connected with the signal acquisition circuit 241 and the fan 23 and is used for determining whether the power plug 21 is disconnected with an external power supply according to the first electric signal; and when the power plug 21 is determined to be disconnected from the external power supply, controlling the fan 23 to operate so as to consume the residual electric energy on the power plug 21 due to the energy storage element 22.
In this embodiment, the robot may be a sweeping robot or a cleaning robot integrating sweeping and mopping.
Optionally, the signal acquisition circuit 241 includes a photo coupler. Referring to fig. 3, the photocoupler includes a light emitter 2411 and a light receiver 2412; the light emitter 2411 is electrically connected with the power plug 21; the light receiver 2412 is electrically connected to the control device 242.
The control device 242 may include a single chip computer 2421 and a thyristor 2422. The single chip computer 2421 is electrically connected to the signal obtaining circuit 241 (such as a photocoupler) and configured to generate a control signal when it is determined that the power plug 21 is disconnected from the external power source. The silicon controlled rectifier 2422 is connected with the single chip microcomputer 2421 and the fan 23 and used for driving the fan 23 to operate according to the control signal.
Further, the signal obtaining circuit 241 may be further configured to obtain the second electrical signal flowing through the blower 23 after determining that the power plug 21 is disconnected from the external power source. The control device 242 may be further configured to filter the reverse voltage signal generated by the fan 23 when the second electrical signal is determined to be the reverse voltage signal.
Here, it should be noted that: the dust collecting device mentioned in this embodiment can be implemented by using the above dust collecting device embodiment, and the specific implementation structure is also referred to the corresponding content in the above embodiment, which is not described herein again.
Fig. 6 is a schematic structural diagram of a discharge device according to an exemplary embodiment of the present application, where the discharge device includes: a power plug 21, a signal acquisition circuit 241 and a control device 242. The power plug 21 is used for electrically connecting with an external power supply to supply power to a load. A signal acquisition circuit 241 for acquiring a first electrical signal flowing through the power plug 21. A control device 242 electrically connected to the signal acquisition circuit 241 and the load, and configured to enter a safe discharge preparation period when the first electrical signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug 21 during the safe discharge preparation period; if the first electric signal does not return to be stable at the end of the safe discharge preparation period, it is determined that the power plug 21 is disconnected from the external power supply, and a control command is sent to the load so as to operate the load and consume the residual electric energy on the power plug 21.
Optionally, the load is a high power consumption fan or a motor. The discharge device provided by the present embodiment can be applied to various apparatuses, such as the above-mentioned dust collecting apparatus, blower, and the like. The main load of the dust collecting device, the blower and other devices is the blower, so the blower can be used for consuming the electric energy on the power plug. Other household appliances, such as food processors, automatic cooking machines, etc., have a main load of an electric motor (driving a tool bit to rotate or stirring a slice), so that the electric motor can be used for consuming residual electric energy on a power plug. Of course, there are other devices with similar loads, such as electric kettles, whose main load is the heating device, so that the heating device can be used to consume the residual electric energy on the power plug; etc., this embodiment is not intended to be exemplary.
Optionally, the signal obtaining circuit 241 is further configured to obtain the second electrical signal flowing through the fan after it is determined that the power plug 21 is disconnected from the external power supply; the control device 242 is further configured to filter the reverse voltage signal generated by the fan when it is determined that the second electrical signal is the reverse voltage signal.
Optionally, in this embodiment, the signal obtaining circuit 241 includes a photo coupler. Referring to fig. 3, the photocoupler includes a light emitter and a light receiver; the light emitter is electrically connected with the power plug; the light receiver is electrically connected to the control device 242.
Optionally, the control device 242 includes: singlechip and silicon controlled rectifier. The single chip microcomputer is electrically connected with the signal acquisition circuit and used for generating a control signal when the power plug 21 is determined to be disconnected from the external power supply; and the controllable silicon is connected with the singlechip and the fan and used for driving the fan to operate according to the control signal.
In the technical scheme provided by the embodiment, a safe discharge preparation period is entered when a first electric signal flowing through a power plug fluctuates, and the first electric signal of the power plug is continuously monitored in the preparation period; determining whether the first electrical signal has recovered to be stable at the end of the preparation period; if the power plug is not recovered to be stable, the power plug is disconnected from the external power supply, and the load is controlled to operate at the moment, so that the residual electric energy on the power plug is consumed by the load. Compared with the scheme of discharging electronic elements by adopting resistors and capacitors in the prior art, the technical scheme provided by the embodiment has the advantages of high load power and high discharging efficiency, and the parameter selection of the discharging electronic elements is not required to be considered; the implementation scheme is simple and easy to implement.
In addition, it should be noted that the discharge device provided in this embodiment can be implemented by adopting the structures in the foregoing embodiments, and specific embodiments can refer to the foregoing contents, which are not described herein again.
Fig. 7 is a schematic flowchart of a discharging method according to an exemplary embodiment of the present application, where an execution subject of the discharging method may be the single chip microcomputer 2421 in fig. 3, and the method may include:
601. acquiring a first electric signal flowing through a power plug;
602. entering a safe discharge preparation period when the first electric signal fluctuates;
603. continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period;
604. and if the first electric signal does not recover to be stable at the end of the safe discharge preparation period, determining that the power plug is disconnected from an external power supply, and sending a control command to the load to enable the load to operate and consume residual electric energy on the power plug.
In specific implementation, the value range of the safe discharge preparation period can be 200-600 ms.
In 602, it may be determined that the first electrical signal fluctuates when the period or the signal magnitude of the first electrical signal changes.
Further, the method provided by this embodiment may further include the following steps:
603. monitoring whether the signal period and the signal size of a first electric signal flowing through the power plug meet the stability requirement before the safety discharge preparation period is finished;
604. if the signal period and the signal size of a first electric signal flowing through the power plug in a preset time period before the safety discharge preparation period is ended meet the stability requirement, determining that the first electric signal is recovered to be stable; wherein the duration of the preset time period is less than the duration of the safe discharge preparation period.
Further, the method provided by this embodiment may further include:
605. after the fact that the power plug is disconnected with the external power supply is determined, acquiring a second electric signal of the load;
606. determining whether a reverse voltage signal is generated for the load according to the second electrical signal;
607. and when the reverse voltage signal is determined, filtering the reverse voltage signal.
In the technical scheme provided by the embodiment, a safe discharge preparation period is entered when a first electric signal flowing through a power plug fluctuates, and the first electric signal of the power plug is continuously monitored in the preparation period; determining whether the first electrical signal has recovered to be stable at the end of the preparation period; if the power plug is not recovered to be stable, the power plug is disconnected from the external power supply, and the load is controlled to operate at the moment, so that the residual electric energy on the power plug is consumed by the load. Compared with the scheme of discharging electronic elements by adopting resistors and capacitors in the prior art, the technical scheme provided by the embodiment has the advantages of high load power and high discharging efficiency, and the parameter selection of the discharging electronic elements is not required to be considered; the implementation scheme is simple and easy to implement.
Here, it should be noted that: for more details of the above steps, reference may be made to the related contents in the above embodiments, and further description is omitted here.
Accordingly, embodiments of the present application further provide a computer-readable storage medium storing a computer program, where the computer program, when executed by a computer, can implement the steps or functions of the discharging method provided in the foregoing embodiments.
The technical solution provided by the present application is explained below with reference to specific application scenarios.
After the power plug of the dust collecting device is pulled out, if no safety discharge device or other discharge circuit exists, the voltage of the power plug will slowly drop, as shown in fig. 8a, the slow drop of the plug voltage will cause the power plug to have a voltage exceeding 36V for a time of more than 1s, and the requirement of safety regulation for reaching the safety voltage within 1s cannot be met. A safety discharge device having the structure shown in fig. 2 and 3 is provided in the dust collecting apparatus. After a power plug of the dust collecting device is inserted into a socket, namely, after the power plug is electrically connected with an external power supply, a photoelectric coupler of the safety discharging device can acquire a first electric signal flowing through the power plug and send the first electric signal to a control device (namely, a singlechip). As shown in fig. 8b, the photocoupler converts the ac electrical signal (i.e. the upper electrical signal in fig. 8 b) received by the power plug into a high/low electrical signal (i.e. the lower electrical signal in fig. 8 b); and then the high-low level signal is sent to the singlechip.
Assuming that the first electrical signal acquired by the photocoupler is the case shown in fig. 8c, at t1At the moment, the first signal fluctuates, and the single chip microcomputer enters a safe discharge preparation period. At the end of the safe discharge preparation period, i.e. t, as shown in fig. 8c2At that time, no stable second time has been detectedAn electrical signal can determine that the power plug of the dust collecting device is pulled out of the socket. At the moment, the singlechip controls the fan of the dust collecting equipment to rotate through the controlled silicon so as to consume the residual electric energy in the plug.
Due to the inductance characteristic of the fan, a reverse voltage is generated in the discharging process. Fig. 8d is measured using the test tool and this reverse voltage does exist. This reverse voltage is similar to the waveform of the first electrical signal, see fig. 8e for a reverse voltage corresponding electrical signal waveform. The photoelectric coupler collects the electric signal, and after the single chip microcomputer determines the reverse voltage signal generated by the fan, the single chip microcomputer triggers an internal program to filter the reverse voltage signal.
After the user pulls out the power plug of the dust collecting device, the user hears a brief turning sound of the blower because the blower is triggered to consume the residual electric power on the power plug.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (22)
1. A dust collecting apparatus, comprising:
a power plug;
the energy storage element is connected with the power plug and is used for inhibiting electromagnetic interference;
the fan is connected with the power plug through the energy storage element and used for generating suction airflow so as to collect dust into the dust collection barrel;
the safety discharge device is used for acquiring a first electric signal flowing through the power plug; entering a safe discharge preparation period when the first electric signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period; if the first electric signal is not stable after the safe discharge preparation period is finished, determining that the power plug is disconnected from an external power supply, and controlling the fan to operate to consume residual electric energy carried by the energy storage element on the power plug so as to finish the discharge of the power plug within the safe discharge duration;
and if the signal period and the signal size of the first electric signal meet the stability requirement in a preset time period before the safety discharge preparation period is ended, determining that the first electric signal is recovered to be stable.
2. The dust collecting apparatus of claim 1, wherein the safety discharging means comprises:
a signal acquisition circuit for acquiring the first electrical signal flowing through the power plug;
the control device is electrically connected with the signal acquisition circuit and the fan and used for entering a safe discharge preparation period when the first electric signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period; and if the first electric signal is not stable after the safe discharge preparation period is finished, determining that the power plug is disconnected from an external power supply, and controlling the fan to operate to consume residual electric energy on the power plug due to the energy storage element so as to complete the discharge of the power plug within the safe discharge duration.
3. The dust collecting apparatus according to claim 2, wherein the signal acquiring circuit includes: a photoelectric coupler;
the photoelectric coupler comprises a light emitter and a light receiver;
the light emitter is electrically connected with the power plug;
the light receiver is electrically connected with the control device.
4. The dust collecting apparatus of claim 2, wherein the control means comprises:
the single chip microcomputer is electrically connected with the signal acquisition circuit and used for generating a control signal when the power plug is determined to be disconnected with the external power supply;
and the controllable silicon is connected with the singlechip and the fan and used for driving the fan to operate according to the control signal.
5. The dust collecting apparatus according to any one of claims 1 to 4,
the safety discharge device is also used for acquiring a second electric signal flowing through the fan after the fact that the power plug is disconnected with the external power supply is determined; determining whether the second electric signal is a reverse voltage signal generated by the fan; and when the reverse voltage signal generated by the fan is determined, filtering the reverse voltage signal.
6. The dust collecting apparatus according to any one of claims 1 to 4, wherein the energy storage element comprises:
the first filter coil comprises a first end and a second end, and the first end is electrically connected with the positive pin of the power plug;
the second filter coil comprises a third end and a fourth end, and the third end is electrically connected with a negative pin of the power plug;
and the positive electrode end of the capacitor is electrically connected with the second end of the first filter coil, and the negative electrode end of the capacitor is electrically connected with the fourth end of the second filter coil.
7. The dust collecting apparatus as claimed in claim 6, wherein the safety discharging means comprises a photo coupler;
the anode of the photoelectric coupler is electrically connected with the positive pin of the power plug, and the cathode of the photoelectric coupler is electrically connected with the negative pin of the power plug.
8. The dust collecting apparatus as claimed in any one of claims 1 to 4, wherein the safe discharge preparation period is 200 to 600 ms.
9. A robotic system, comprising:
a robot having an ability to autonomously move and collect dust;
the dust collecting equipment comprises a power plug, an energy storage element, a fan, a dust collecting barrel and a safety discharging device, and is used for starting the fan to suck dust collected by the robot into the dust collecting barrel after the dust collecting equipment is in butt joint with the robot; wherein the content of the first and second substances,
the energy storage element is connected with the power plug and used for inhibiting electromagnetic interference;
the fan is connected with the power plug through the energy storage element;
the safety discharge device is used for acquiring a first electric signal flowing through the power plug; entering a safe discharge preparation period when the first electric signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period; if the first electric signal is not stable after the safe discharge preparation period is finished, determining that the power plug is disconnected from an external power supply, and controlling the fan to operate to consume residual electric energy carried by the energy storage element on the power plug so as to finish the discharge of the power plug within the safe discharge duration;
and if the signal period and the signal size of the first electric signal meet the stability requirement in a preset time period before the safety discharge preparation period is ended, determining that the first electric signal is recovered to be stable.
10. The robotic system as claimed in claim 9, wherein the safety discharge device includes an opto-coupler and a control device;
the photoelectric coupler comprises a light emitter and a light receiver;
the light emitter is electrically connected with the power plug;
the light receiver is electrically connected with the control device.
11. The robotic system as claimed in claim 10, wherein the control means comprises:
the singlechip is electrically connected with the photoelectric coupler and used for generating a control signal when the power plug is determined to be disconnected with the external power supply;
and the controllable silicon is connected with the singlechip and the fan and used for driving the fan to operate according to the control signal.
12. The robotic system of any of claims 9-11,
the safety discharge device is also used for acquiring a second electric signal flowing through the fan after the fact that the power plug is disconnected with the external power supply is determined; determining whether the second electric signal is a reverse voltage signal generated by the fan; and when the reverse voltage signal generated by the fan is determined, filtering the reverse voltage signal.
13. An electric discharge device, comprising:
the power plug is electrically connected with an external power supply to supply power to the load;
a signal acquisition circuit for acquiring a first electrical signal flowing through the power plug;
the control device is electrically connected with the signal acquisition circuit and the load and is used for entering a safe discharge preparation period when the first electric signal fluctuates; continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period; if the first electric signal does not recover to be stable when the safe discharge preparation period is over, determining that the power plug is disconnected from an external power supply, and sending a control instruction to the load so that the load operates to consume residual electric energy on the power plug, and further finishing the discharge of the power plug within the safe discharge duration;
and if the signal period and the signal size of the first electric signal meet the stability requirement in a preset time period before the safety discharge preparation period is ended, determining that the first electric signal is recovered to be stable.
14. The discharge device of claim 13, wherein the load is a high power fan or a motor.
15. The discharge device according to claim 14,
the signal acquisition circuit is further used for acquiring a second electric signal flowing through the fan after the fact that the power plug is disconnected with the external power supply is determined;
the control device is further configured to filter the reverse voltage signal when it is determined that the second electrical signal is the reverse voltage signal generated by the fan.
16. The discharging device according to claim 13, wherein the signal acquisition circuit comprises a photo coupler;
the photoelectric coupler comprises a light emitter and a light receiver;
the light emitter is electrically connected with the power plug;
the light receiver is electrically connected with the control device.
17. The discharge device according to claim 14, wherein the control device includes:
the single chip microcomputer is electrically connected with the signal acquisition circuit and used for generating a control signal when the power plug is determined to be disconnected with the external power supply;
and the controllable silicon is connected with the singlechip and the fan and used for driving the fan to operate according to the control signal.
18. A method of discharging, comprising:
acquiring a first electric signal flowing through a power plug;
entering a safe discharge preparation period when the first electric signal fluctuates;
continuously monitoring a first electrical signal flowing through the power plug during the safe discharge preparation period;
if the first electric signal does not recover to be stable when the safe discharge preparation period is over, determining that the power plug is disconnected from an external power supply, and sending a control instruction to a load so that the load operates to consume residual electric energy on the power plug, and further finishing the discharge of the power plug within the safe discharge duration;
and if the signal period and the signal size of the first electric signal meet the stability requirement in a preset time period before the safety discharge preparation period is ended, determining that the first electric signal is recovered to be stable.
19. The method of claim 18, further comprising:
monitoring whether the signal period and the signal size of a first electric signal flowing through the power plug meet the stability requirement before the safe discharge preparation period is finished;
if the signal period and the signal size of a first electric signal flowing through the power plug in a preset time period before the safety discharge preparation period is ended meet the stability requirement, determining that the first electric signal is recovered to be stable; wherein the duration of the preset time period is less than the duration of the safe discharge preparation period.
20. The method of claim 18, wherein the safe discharge preparation period is 200 to 600 ms.
21. The method of claim 18, further comprising:
and judging that the first electric signal fluctuates when the period of the first electric signal changes or the signal size changes.
22. The method of claim 18, further comprising:
after the fact that the power plug is disconnected with the external power supply is determined, acquiring a second electric signal of the load;
determining whether a reverse voltage signal is generated for the load according to the second electrical signal;
and when the reverse voltage signal is determined, filtering the reverse voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432800.6A CN111714035B (en) | 2020-05-20 | 2020-05-20 | Dust collecting device, robot system, discharging device, and discharging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432800.6A CN111714035B (en) | 2020-05-20 | 2020-05-20 | Dust collecting device, robot system, discharging device, and discharging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111714035A CN111714035A (en) | 2020-09-29 |
| CN111714035B true CN111714035B (en) | 2022-07-05 |
Family
ID=72564738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010432800.6A Active CN111714035B (en) | 2020-05-20 | 2020-05-20 | Dust collecting device, robot system, discharging device, and discharging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111714035B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254320A (en) * | 1979-04-02 | 1981-03-03 | Colt Industries Operating Corp. | Power output module for electrical discharge machining power supply circuit |
| CN201697990U (en) * | 2010-06-29 | 2011-01-05 | 威胜集团有限公司 | Detecting circuit for power transmission and failure states of electric energy meter |
| CN102901936A (en) * | 2012-10-19 | 2013-01-30 | 海信（山东）空调有限公司 | Poweroff detection method of alternating current power supply and poweroff protection method of direct current inverter compressor |
| CN205453116U (en) * | 2015-12-18 | 2016-08-10 | 浙江苏泊尔家电制造有限公司 | Survival voltage bleeder circuit and electric rice cooker |
| CN205490112U (en) * | 2015-12-30 | 2016-08-17 | 珠海灵科自动化科技有限公司 | Automatic discharge device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269837B (en) * | 2014-10-17 | 2017-07-28 | 广东美的厨房电器制造有限公司 | Pull out electrical protective device |
| CN108255079B (en) * | 2016-12-29 | 2020-04-10 | 广东美的生活电器制造有限公司 | Household appliance, power plug discharging device and control method thereof |
-
2020
- 2020-05-20 CN CN202010432800.6A patent/CN111714035B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254320A (en) * | 1979-04-02 | 1981-03-03 | Colt Industries Operating Corp. | Power output module for electrical discharge machining power supply circuit |
| CN201697990U (en) * | 2010-06-29 | 2011-01-05 | 威胜集团有限公司 | Detecting circuit for power transmission and failure states of electric energy meter |
| CN102901936A (en) * | 2012-10-19 | 2013-01-30 | 海信（山东）空调有限公司 | Poweroff detection method of alternating current power supply and poweroff protection method of direct current inverter compressor |
| CN205453116U (en) * | 2015-12-18 | 2016-08-10 | 浙江苏泊尔家电制造有限公司 | Survival voltage bleeder circuit and electric rice cooker |
| CN205490112U (en) * | 2015-12-30 | 2016-08-17 | 珠海灵科自动化科技有限公司 | Automatic discharge device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111714035A (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210042326U (en) | Intelligent lamp control system and flash switch detection circuit thereof | |
| US10560035B2 (en) | Discharge device, power supply apparatus, and discharge method with power supply cut-off detection and capacitor discharge | |
| CN106655824A (en) | Switching power source control circuit and switching power source | |
| US6044002A (en) | Flyback converter with limited output power | |
| CN111157831B (en) | Performance test method, device and equipment for power-on buffer resistor | |
| CN111714035B (en) | Dust collecting device, robot system, discharging device, and discharging method | |
| CN105763035A (en) | Method and circuit for improving low-temperature starting capacity | |
| CN116960903B (en) | Switch control circuit, power supply circuit and energy storage power supply | |
| CN107947671A (en) | For the circuit for controlling motor of food processor, method and food processor | |
| CN103996937B (en) | A kind of method of standby automatic power-off socket and break-make power supply | |
| JP6895216B2 (en) | DC smart grid and smart outlet | |
| CN201956900U (en) | Direct-current power for ensuring in-place energy storage of energy storage motor for circuit breaker and load switch | |
| CN111750953B (en) | Liquid level detection circuit and electric appliance | |
| CN110739672A (en) | Surge current control circuit and control method thereof | |
| CN102158066A (en) | Direct-current (DC) power supply for guaranteeing fully stored energy of stored energy motors of breaker and load switch | |
| CN114530838A (en) | Control device and method of direct current socket and direct current socket | |
| CN113162184A (en) | Automatic power supply control system and method for CT power taking | |
| CN110609170A (en) | Detection method, detection device, household appliance and computer readable storage medium | |
| CN215990185U (en) | Overvoltage protection circuit and electrical equipment | |
| CN107492865A (en) | A kind of alternating current power failure response circuit and electric equipment | |
| CN217605954U (en) | Alternating current voltage detection circuit | |
| CN216649522U (en) | Exchange firing circuit and blood cell analysis appearance | |
| CN110098604A (en) | A kind of discharge circuit, electric source filter circuit, power-supplying circuit and household electrical appliance | |
| CN218301212U (en) | Capacitor discharge circuit | |
| CN214675105U (en) | Power-on trigger reset circuit of standby power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |