CN212989932U - Low-voltage blowing cylinder circuit with low power consumption - Google Patents
Low-voltage blowing cylinder circuit with low power consumption Download PDFInfo
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- CN212989932U CN212989932U CN202022598744.1U CN202022598744U CN212989932U CN 212989932 U CN212989932 U CN 212989932U CN 202022598744 U CN202022598744 U CN 202022598744U CN 212989932 U CN212989932 U CN 212989932U
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Abstract
The utility model discloses a low-voltage blowing cylinder circuit with low power consumption, which comprises a low-power consumption control module, a switch module, a motor driving module, a key module, a motor and a power module for supplying power; the power module comprises a first power output end and a second power output end, the switch module is provided with a control end and two connecting ends, the first power output end, the control end and the key module are all electrically connected with the low-power-consumption control module, the two connecting ends are respectively electrically connected with the second power output end and the motor driving module, and the low-power-consumption control module and the motor are both electrically connected with the motor driving module; the switch module is used for controlling the circuit between the two connecting ends to be switched on or switched off according to the control signal received by the control end. The utility model discloses can effectively reduce the low pressure stand-by power consumption of a section of thick bamboo of blowing.
Description
Technical Field
The utility model belongs to the technical field of a section of thick bamboo technique of blowing and specifically relates to a low pressure of low-power consumption circuit of blowing.
Background
Along with popularization and application of the direct-current brushless high-speed motor, the handheld low-voltage air blowing cylinder with the dust removal function is gradually favored by customers. The existing low-voltage air blowing cylinder is generally powered by a battery, the electric energy of the battery is output to a motor driving part, and even in a standby state, the motor driving part still consumes a part of electric energy. For the condition that the air blowing cylinder needs to be transported for a long time, such as export shipping, if the standby power consumption of the air blowing cylinder is high, the electric quantity of the air blowing cylinder finally delivered to a user is insufficient; for a common user, if the standby time is too short, the battery is frequently charged, the user experience is poor, and the service life of the battery is also reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low pressure of low-power consumption is a circuit of blowing can effectively reduce the low pressure standby power consumption of a section of thick bamboo of blowing.
In order to solve the above problem, the utility model adopts the following technical scheme:
a low-power-consumption low-voltage air blowing cylinder circuit comprises a low-power-consumption control module, a switch module, a motor driving module, a key module, a motor and a power supply module for supplying power; the power module comprises a first power output end and a second power output end, the switch module is provided with a control end and two connecting ends, the first power output end, the control end and the key module are all electrically connected with the low-power-consumption control module, the two connecting ends are respectively electrically connected with the second power output end and the motor driving module, and the low-power-consumption control module and the motor are both electrically connected with the motor driving module; the switch module is used for controlling the circuit between the two connecting ends to be switched on or switched off according to the control signal received by the control end.
Preferably, the switch module includes first MOS transistor and first triode, the source electrode and the drain electrode of first MOS transistor are two respectively the link, the source electrode of first MOS transistor, resistance R11 and the grid of first MOS transistor are connected in order the electricity, and the grid of first MOS transistor is connected with the collecting electrode electricity of first triode, and the projecting pole ground connection of first triode, the base of control end, resistance R13 and first triode is connected in order the electricity, and the both ends of resistance R15 are connected with the base of first triode and the projecting pole electricity of first triode respectively.
Preferably, the low power consumption control module comprises a chip EN8F156QFN16, wherein pin 1 of the chip EN8F156QFN16 is electrically connected with the first power output end, pins 3, 4, 7 and 8 of the chip EN8F156QFN16 are electrically connected with the motor driving module, and pin 16 of the chip EN8F156QFN16 is electrically connected with the key module.
Preferably, the low-power-consumption low-voltage air blowing cylinder circuit further comprises an indication module, and the 6 pins of the chip EN8F156QFN16 are electrically connected with the indication module.
Preferably, the indicating module comprises a second triode and a light emitting diode, the 6 pins of the chip EN8F156QFN16, the resistor R16 and the base of the second triode are electrically connected in sequence, the direct current power supply, the resistor R10, the light emitting diode and the collector of the second triode are electrically connected in sequence, and the emitter of the second triode is grounded.
Preferably, the motor driving module includes a motor driving chip and a bridge inverter circuit electrically connected to the motor driving chip.
Preferably, the motor driving chip is a chip LKS32MC084DF6Q 8.
Preferably, the motor is a three-phase motor, and the number of the bridge type inverter circuits is three.
Preferably, the power module comprises a charging circuit, a battery and a first voltage reduction circuit which are connected in series in sequence, the output end of the first voltage reduction circuit is a first power output end, and the second power output end is electrically connected with the positive electrode of the battery.
Preferably, a second voltage reduction circuit is further connected in series between the connection end of the switch module and the motor driving module.
The utility model discloses following beneficial effect has: the utility model discloses it has the switch module to concatenate between power module and motor drive module, and under standby state, low-power consumption control module sends control signal to the control end for break off between two links, power module is not to the power supply of motor drive module, and motor drive module does not consume the electric energy at standby state. Meanwhile, the low-power consumption control module adopts a low-power consumption design, so that the standby power consumption of the low-voltage air blowing cylinder can be effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of a low-power-consumption low-voltage blower circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a switch module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a low power consumption control module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a key module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an indication module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a motor driving chip according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an intermediate circuit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a bridge inverter circuit according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a charging circuit according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a first voltage-reducing circuit according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a second voltage-reducing circuit according to an embodiment of the present invention.
Detailed Description
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but such details are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the literal meanings, but are used by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.
The term "electrically connected" as used in this disclosure means that two components are electrically connected, and the two components may be directly electrically connected or electrically connected through an intermediate device.
The terms "having," "may have," "including," or "may include" used in various embodiments of the present disclosure indicate the presence of the respective functions, operations, elements, etc., disclosed, but do not limit additional one or more functions, operations, elements, etc. Furthermore, it is to be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.
Although terms such as "first" and "second" used in various embodiments of the present disclosure may modify various elements of the various embodiments, the terms do not limit the corresponding elements. For example, these terms do not limit the order and/or importance of the corresponding elements. These terms may be used to distinguish one element from another. For example, the first user equipment and the second user equipment both indicate user equipment, and may indicate different user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the various embodiments of the present disclosure.
An embodiment of the utility model provides a low-pressure section of thick bamboo circuit of blowing of low-power consumption, as shown in fig. 1, it includes low-power consumption control module 1, switch module 2, motor drive module 3, motor 4, button module 5 and is used for the power module 6 of power supply. The power module 6 provides a direct-current power supply to supply power to modules or devices needing power in the whole low-power-consumption low-voltage air blowing cylinder circuit, the power module 6 comprises a first power output end and a second power output end, and the first power output end and the second power output end output direct-current power signals. The switch module 2 is provided with a control end and two connecting ends, the first power output end, the control end and the key module 5 are electrically connected with the low-power-consumption control module 1, the two connecting ends are respectively electrically connected with the second power output end and the motor driving module 3, and the low-power-consumption control module 1 and the motor 4 are electrically connected with the motor driving module 3. The user can operate through the key module 5, the low-power-consumption control module 1 sends a motor control signal to the motor driving module 3 according to an operation instruction of the user to the key module 5, and the motor driving module 3 drives the motor 4 to work or stop working and can change the rotating speed of the motor 4 and the like.
The low power consumption control module 1 can also send a control signal to the switch module 2, and the switch module 2 controls the circuit between the two connection ends to be switched on or switched off according to the control signal received by the control end. When the circuit between the two connecting ends is switched on, the power module 6 supplies power to the motor driving module 3, the motor driving module 3 can work, and when the circuit between the two connecting ends is switched off, the power module 6 does not supply power to the motor driving module 3, and the motor driving module 3 cannot work. After the air blowing cylinder is not used for a long time, the air blowing cylinder enters a standby state. When the air blowing tube is in a standby state, the low-power-consumption control module 1 sends a control signal to the switch module 2, so that the power module 6 does not supply power to the motor driving module 3, and the power consumption of the air blowing tube in the standby state can be reduced. When the user operates the key module 5, the air blowing tube is awakened from the standby state.
Meanwhile, the low-power-consumption control module 1 adopts a low-power-consumption design, and specifically can configure the pin function of the chip of the low-power-consumption control module 1, configure the low-power-consumption control module 1 to enter a sleep mode and automatically turn off the power supply of the related peripheral after the low-power-consumption control module 1 enters the sleep mode in a standby state. Thus, even if the low power consumption control module 1 is still operating in the standby state, it will operate at a lower power. Therefore, the standby power consumption of the low-voltage air blowing cylinder can be effectively reduced, the service life of the power supply is prolonged, and the service life of the power supply is prolonged.
In one embodiment, as shown in fig. 2, the switch module 2 includes a first MOS transistor Q1 and a first transistor Q2, a source and a drain of the first MOS transistor are respectively two connection terminals of the switch module 2, the source of the first MOS transistor, a resistor R11 and a gate of the first MOS transistor are electrically connected in sequence, the gate of the first MOS transistor is electrically connected to a collector of the first transistor, an emitter of the first transistor is grounded, a control terminal (a TP16 port in the figure), a resistor R13 and a base of the first transistor are electrically connected in sequence, and two ends of a resistor R15 are electrically connected to the base of the first transistor and the emitter of the first transistor respectively. A filter capacitor, namely capacitors C23, C11 and C10 in fig. 2, can be further connected between the drain of the first MOS transistor and the emitter of the first triode. The first triode is switched on or switched off according to the level signal of the control end, so that the grid electrode of the first MOS tube is connected with a high level or a low level, and the first MOS tube is further controlled to be switched on or switched off, and thus the switching function can be achieved.
In one embodiment, as shown in fig. 3, the low power consumption control module 1 includes a chip EN8F156QFN16, the chip EN8F156QFN16 is a dedicated brushless motor control chip, and the 1 pin of the chip EN8F156QFN16 is electrically connected to the first power output terminal, and 5V power is supplied from the power module 6. The 3 pins, the 4 pins, the 7 pins and the 8 pins of the chip EN8F156QFN16 are electrically connected with the motor driving module, the 3 pins provide starting signals for the motor driving module 3, the 4 pins and the 8 pins provide speed regulating signals for the motor driving module 3, and the 7 pins can receive fault signals sent by the motor driving module 3. The chip EN8F156QFN16 has a 16-pin electrically connected to the key module 5, and the key module 5 can adopt a single key design to perform different function controls according to different key states, wherein if one click is performed, the motor 4 operates at half speed, and if two clicks are performed, the motor 4 operates at the highest speed. Multifunctional control is realized through a single key, operation is simpler, and user experience is better.
In one embodiment, the low-power-consumption low-voltage air blowing cylinder circuit further comprises an indication module 7, wherein the 6 pins of the chip EN8F156QFN16 are electrically connected with the indication module 7, and the working state of the circuit is indicated by the indication module 7.
As shown in fig. 5, the indication module 7 includes a second transistor Q3 and a light emitting diode D2, the 6 pin of the chip EN8F156QFN16, a resistor R16 and the base of the second transistor are electrically connected in sequence, and a dc power supply, a resistor R10, a light emitting diode and the collector of the second transistor are electrically connected in sequence, and the dc power supply may be provided by the first output terminal. And the emitter of the second triode is grounded. Both ends of the capacitor C34 and both ends of the resistor R18 are respectively electrically connected with the base electrode and the emitting electrode of the second triode. The level signal output from pin 6 of the chip EN8F156QFN16 changes the conducting state of the second transistor, so that the light emitting diode is turned on or off, and whether the motor 4 is working or not can be indicated.
In one embodiment, the motor driving module 3 includes a motor driving chip and a bridge inverter circuit electrically connected to the motor driving chip. The motor driving chip sends a PWM signal to the bridge type inverter circuit to control the bridge type inverter circuit to generate an alternating current signal, and the output end of the bridge type inverter circuit is loaded on the motor 4 to drive the motor 4 to operate.
As shown in fig. 6, the motor driving chip is a chip LKS32MC084DF6Q8, pin 2 of the chip LKS32MC084DF6Q8 needs a 5V dc power signal, pin 27 needs a 12V dc power signal, pin 27 can be supplied with the dc power signal through the connection terminal of the switch module, and pin 2 can be supplied with the dc power signal after being stepped down by the power module 6. Meanwhile, pins 6, 7, 39 and 38 of the chip LKS32MC084DF6Q8 are all electrically connected with the low power consumption control module 1 through an intermediate circuit. Fig. 7 is a schematic structural diagram of the intermediate circuit, and through the intermediate circuit, the 6 pin of the chip LKS32MC084DF6Q8 is electrically connected to the 3 pin of the chip EN8F156QFN16, the 7 pin of the chip LKS32MC084DF6Q8 is electrically connected to the 4 pin of the chip EN8F156QFN16, the 38 pin of the chip LKS32MC084DF6Q8 is electrically connected to the 8 pin of the chip EN8F156QFN16, and the 39 pin of the chip LKS32MC084DF6Q8 is electrically connected to the 7 pin of the chip EN8F156QFN 16.
In one embodiment, the motor 4 is a three-phase motor, as shown in fig. 8, three bridge inverter circuits are provided, the U port, the V port and the W port are respectively electrically connected to one phase terminal of the motor 4, and the pins 18, 19, 20, 29, 25 and 22 of the chip LKS32MC084DF6Q8 are electrically connected to the three bridge inverter circuits. Each bridge inverter circuit comprises two MOS tubes, and the pins of the chip LKS32MC084DF6Q8 output PWM signals to control the on-off of the two MOS tubes in each bridge inverter circuit, so that the control of each phase of electricity is realized.
In one embodiment, the power module 6 includes a charging circuit 61, a battery 62 and a first voltage-reducing circuit 63 connected in series in sequence, the charging circuit 61 charges the battery 62 through a charging interface, the first voltage-reducing circuit 63 reduces the voltage output by the battery 62, an output terminal of the first voltage-reducing circuit 63 is a first power output terminal, and a second power output terminal is electrically connected to a positive electrode of the battery 62, so as to directly supply power from the battery 62. The battery 62 may provide 12V dc power.
In one embodiment, the charging circuit 61 includes a charging management chip CS5095, the 1 pin of the charging management chip CS5095 is connected to a 5V dc power supply, and the J1 interface may be a USB interface, and the USB interface supplies a 5V power signal. The J2 interface is electrically connected to the battery 62, and the 5 pins of the charge management chip CS5095 charge the battery 62.
As shown in fig. 10, the first voltage-reducing circuit 63 includes a conventional voltage-reducing chip, and can reduce the 12V dc voltage output by the battery 62 to 5V dc voltage for use by other modules such as the low power consumption control module 1.
In one embodiment, the power output from the second power output terminal is not suitable for directly supplying the motor driving chip, so that a second voltage reduction circuit is connected in series between the connection terminal of the switch module 2 and the motor driving module 3 to reduce the 12V dc voltage to the 5V dc voltage. As shown in fig. 11, the second buck circuit also employs a conventional buck chip.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022598744.1U CN212989932U (en) | 2020-11-11 | 2020-11-11 | Low-voltage blowing cylinder circuit with low power consumption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022598744.1U CN212989932U (en) | 2020-11-11 | 2020-11-11 | Low-voltage blowing cylinder circuit with low power consumption |
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| CN212989932U true CN212989932U (en) | 2021-04-16 |
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| CN202022598744.1U Active CN212989932U (en) | 2020-11-11 | 2020-11-11 | Low-voltage blowing cylinder circuit with low power consumption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025021123A1 (en) * | 2023-07-24 | 2025-01-30 | 深圳市几素科技有限公司 | Motor driving control circuit, portable fan based on high-speed three-phase motor, and portable fan control method |
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2020
- 2020-11-11 CN CN202022598744.1U patent/CN212989932U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025021123A1 (en) * | 2023-07-24 | 2025-01-30 | 深圳市几素科技有限公司 | Motor driving control circuit, portable fan based on high-speed three-phase motor, and portable fan control method |
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