WO2017190295A1 - 一种电压自动切换电路及电吹风 - Google Patents

一种电压自动切换电路及电吹风 Download PDF

Info

Publication number
WO2017190295A1
WO2017190295A1 PCT/CN2016/081007 CN2016081007W WO2017190295A1 WO 2017190295 A1 WO2017190295 A1 WO 2017190295A1 CN 2016081007 W CN2016081007 W CN 2016081007W WO 2017190295 A1 WO2017190295 A1 WO 2017190295A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
resistor
voltage
switch
switching circuit
Prior art date
Application number
PCT/CN2016/081007
Other languages
English (en)
French (fr)
Inventor
肖勇
林立
Original Assignee
深圳市奋达科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市奋达科技股份有限公司 filed Critical 深圳市奋达科技股份有限公司
Priority to PCT/CN2016/081007 priority Critical patent/WO2017190295A1/zh
Publication of WO2017190295A1 publication Critical patent/WO2017190295A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers

Definitions

  • the present invention relates to the field of hair dryer circuits, and more particularly to an automatic voltage switching circuit and a hair dryer.
  • a voltage automatic switching circuit includes: a power voltage input terminal, a double relay, a rectifying unit, a first resistor, a second resistor, and a third resistor. a fourth resistor, a first switch, a second switch, and a control unit;
  • the double relay further includes six contacts, namely a contact K1, a contact K2, a contact K3, a contact K4, a contact K5 and a contact K6, wherein the contact K2 and the contact K3 short-circuit connection;
  • the connection state of the contacts of the duplex relay includes: the contact K3 is connected to the contact K1 or the contact K5, the contact K4 and the contact K2 or the contact K6 Connected
  • the first end of the first resistor is respectively connected to the contact K3 and the power voltage input end, and the second end of the first resistor is respectively connected to the first end of the second resistor, the first a first end of the switch is connected to the contact K5;
  • a second end of the second resistor is connected to a first end of the rectifying unit, and a second end of the rectifying unit is respectively connected to a neutral line and a first end of the second switch, and the rectifying unit is
  • the three terminals and the fourth terminal are voltage output terminals for supplying voltage to the load;
  • the second end of the first switch is respectively connected to the second end of the third resistor and the first end of the fourth resistor, wherein the first end of the third resistor is connected to the contact K4 ;
  • the second end of the second switch is respectively connected to the second end of the fourth resistor and the contact K6;
  • the control unit is respectively connected to the power voltage input terminal and the double relay, for detecting a voltage of the power voltage input terminal, generating a control signal according to the voltage, and driving the dual relay according to the control signal The connection status of the contacts.
  • control unit includes: a voltage identification module, a voltage comparison determination module, and a driving module, wherein the voltage identification module and the driving module are both connected to the voltage comparison determining module;
  • the voltage identification module is connected to the power voltage input end for identifying a voltage of the power voltage input terminal
  • the voltage comparison determining module inputs a preset voltage for comparing whether the voltage of the power voltage input terminal is greater than the preset voltage, and if yes, sending a first control signal to the driving module, where the driving module is The first control signal drives the contact K3 and the contact K1 to be turned on, and the contact K4 and the contact K2 are turned on;
  • the driving module If not, sending a second control signal to the driving module, the driving module driving the contact K3 and the contact K5 to be turned on according to the second control signal, the contact K4 and the touch Point K6 is turned on.
  • the rectifying unit includes four rectifying diodes, and the four rectifying diodes constitute a bridge rectifying circuit to provide a DC voltage to the load.
  • the voltage automatic switching circuit further includes a temperature fuse connected to the second end of the rectifying unit and the first end of the second switch, respectively.
  • the resistance of the third resistor and the resistance of the fourth resistor are the same.
  • the third resistor and the fourth resistor are heating resistor wires.
  • the load is specifically a DC motor.
  • the voltage automatic switching circuit further includes a third switch, one end of the third switch is connected to the DC motor, and the other end is connected to a voltage output end of the rectifying unit.
  • the preset voltage is 170 VAC.
  • the DC motor is further connected in parallel with a capacitor.
  • a voltage automatic switching circuit includes a power voltage input terminal, a double relay, an alternating current load, a first resistor, a third resistor, a fourth resistor, a first switch, a second switch, and a control unit;
  • the double relay further includes six contacts, namely a contact K1, a contact K2, a contact K3, a contact K4, a contact K5 and a contact K6, wherein the contact K2 and the contact K3 short-circuit connection;
  • the connection state of the contacts of the duplex relay includes: the contact K3 is connected to the contact K1 or the contact K5, the contact K4 and the contact K2 or the contact K6 Connected
  • the first end of the first resistor is respectively connected to the contact K3 and the power voltage input end, and the second end of the first resistor is respectively connected to the first end of the AC load and the first switch The first end is connected to the contact K5, wherein the second end of the alternating current load is connected to the neutral line and the first end of the second switch;
  • the second end of the first switch is respectively connected to the second end of the third resistor and the first end of the fourth resistor, wherein the first end of the third resistor is connected to the contact K4 ;
  • the second end of the second switch is respectively connected to the second end of the fourth resistor and the contact K6;
  • the control unit is respectively connected to the power voltage input terminal and the double relay, for detecting a voltage of the power voltage input terminal, generating a control signal according to the voltage, and driving the dual relay according to the control signal The connection status of the contacts.
  • the voltage automatic switching circuit further includes a second resistor, and the second end of the first resistor is connected to the first end of the alternating current load through the second resistor.
  • a hair dryer includes: the voltage automatic switching circuit in the above.
  • Embodiments of the present invention provide a voltage automatic switching circuit, including dual a relay, a rectifying unit, a first resistor, a second resistor, a third resistor, a fourth resistor, a first switch, a second switch, and a control unit; the voltage automatic switching circuit can automatically recognize the voltage input by the plug and pass the control unit Control the operation of the double relay, choose different resistance combination method to supply power to the motor of the hair dryer, use the voltage to automatically switch the hair dryer of the circuit, avoid the human factors and burn off the motor and other components of the hair dryer, thereby improving the user's convenience. Sex and safety.
  • FIG. 1 is a schematic structural diagram of an automatic voltage switching circuit according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a control unit according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an automatic voltage switching circuit of a hair dryer according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an automatic voltage switching circuit for a hair dryer according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an automatic voltage switching circuit of a hair dryer according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of an automatic voltage switching circuit according to an embodiment of the present invention.
  • the voltage automatic switching circuit includes a power voltage input terminal, a double relay J1, a rectifying unit Q2, and a first resistor R1.
  • the power voltage input terminal includes a live line L and a neutral line N
  • the double-connected relay J1 includes six contacts, respectively a contact K1, a contact K2, a contact K3, a contact K4, a contact K5, and a contact K6, wherein Point K1, contact K3 and contact K5 are arranged on the same side of the double relay J1, and the contact K2, the contact K4 and the contact K6 are arranged on the other side of the double relay J1, and the contact K2 and the contact K3 are short-circuited. connection.
  • the connection state of the double relay J1 includes: the contact K3 is connected to the contact K1 or the contact K5; the contact K4 is connected to the contact K2 or the contact K6.
  • connection state of the double relay J1 can be controlled by its internal inductor L. It is assumed that the double contact J1 default contact K3 is connected to the contact K5, the contact K4 is connected to the contact K6, and the internal inductance is passed. L sends a control signal such that contact K3 is turned on with contact K1 and contact K4 is turned on with contact K2.
  • the first end of the first resistor R1 is respectively connected to the contact line K3 and the live line L of the power supply voltage input end, and the second end of the first resistor R1 is respectively connected with the first end of the second resistor R2 and the first end of the first switch 1 and The second end of the second resistor R2 is connected to the first end of the rectifying unit Q2, and the second end of the rectifying unit Q2 is respectively connected to the zero line N and the first end of the second switch 2, and the rectifying unit Q2
  • the third and fourth terminals are voltage outputs for negative
  • the second terminal of the first switch 1 is connected to the second end of the third resistor R3 and the first end of the fourth resistor R4, wherein the first end of the third resistor R3 is connected to the contact K4;
  • the second ends of the two switches 2 are respectively connected to the second end of the fourth resistor R4 and the contact K6; wherein the first switch 1 and the second switch 2 constitute the switch unit SW2, and the switch unit SW2 is closed, that is, the first
  • the control unit Q1 is respectively connected with the power voltage input terminal and the double relay J1, and the connection between the control unit Q1 and the power voltage input terminal is respectively connected to the live line L and the neutral line N of the power voltage input terminal, and the control unit Q1 is used for detecting the power source voltage input.
  • the voltage of the terminal and generates a control signal according to the voltage, and drives the connection state of the contact of the double relay J1 according to the control signal, that is, the contact K3 is connected to the contact K1 or the contact K5; the contact K4 and the contact K2 or contact K6 is turned on.
  • the control unit 20 is the control unit Q1 in FIG. 1.
  • the control unit 20 includes: a voltage identification module 21, a voltage comparison determination module 22, and a drive module 23.
  • the voltage identification module 21 and the drive module 23 are both connected to the voltage.
  • the comparison determining module 22 is connected; the voltage identification module 21 is connected to the power voltage input terminal for identifying the voltage of the power voltage input terminal; the voltage comparison determining module 22 inputs the preset voltage for comparing and determining whether the voltage of the power voltage input terminal is greater than the preset.
  • the voltage if yes, sends a first control signal to the drive module 23, the drive module 23 drives the contact K3 and the contact K1 to be turned on according to the first control signal, the contact K4 and the contact K2 are turned on; if not, the drive is driven
  • the module 23 sends a second control signal, and the drive module 23 drives the contact K3 and the contact K5 to be turned on according to the second control signal, and the contact K4 and the contact K6 are turned on.
  • the preset voltage is 170 VAC
  • V is the voltage unit volt
  • AC is the alternating current.
  • the voltage identification module 21 recognizes the V in , and at the same time, through the voltage comparison judging module 22 and the preset voltage comparison judgment, generates a first control signal, and generates a first control signal. Sended to the driving module 23, the driving module 23 drives the contact K3 and the contact K1 through the inductor L of the double relay according to the first control signal, and the contact K4 and the contact K2 are turned on, then the rectifying unit Q2 and the first The resistor R1 and the second resistor R2 are connected in series for supplying a voltage to the load, thereby achieving the purpose of automatically reducing the high voltage.
  • the voltage identification module 21 recognizes the V in , and at the same time, the voltage comparison judgment module 22 and the preset voltage comparison judgment generate a second control signal, and send the second control signal.
  • the driving module 23 drives the contact K3 and the contact K5 through the inductor L of the double relay according to the second control signal, and the contact K4 and the contact K6 are turned on, and the rectifying unit Q2 and the second resistor are connected. R2 is connected in series to provide voltage to the load.
  • the voltage automatic switching circuit controls the double-connected relay J1 to achieve automatic voltage switching by the control unit Q1, and provides a circuit for an electric appliance that is applicable to multiple voltages.
  • the design needs to be more convenient and safer than the mechanical switching.
  • the voltage automatic switching circuit has fewer components and a simple connection relationship, thereby saving cost.
  • the voltage automatic switching circuit includes a power voltage input terminal, a double relay J1, and a rectifying unit Q2. a resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first switch 1, a second switch 2, and a control unit Q1,
  • the rectifying unit includes four rectifying diodes, namely diodes D1-D4, and four rectifying diodes constitute a bridge rectifying circuit to provide a DC voltage to the load, and the load is a DC motor M in the present embodiment.
  • the power voltage input terminal includes a live line L and a neutral line N
  • the double-connected relay J1 includes six contacts, respectively a contact K1, a contact K2, a contact K3, a contact K4, a contact K5, and a contact K6, wherein Point K1, contact K3 and contact K5 are arranged on the same side of the double relay J1, and the contact K2, the contact K4 and the contact K6 are arranged on the other side of the double relay J1, and the contact K2 and the contact K3 are short-circuited. connection.
  • the connection state of the double relay J1 includes: the contact K3 is connected to the contact K1 or the contact K5; the contact K4 is connected to the contact K2 or the contact K6.
  • connection state of the double relay J1 can be controlled by its internal inductor L. It is assumed that the double contact J1 default contact K3 is connected to the contact K5, the contact K4 is connected to the contact K6, and the internal inductance is passed. L sends a control signal such that contact K3 is turned on with contact K1 and contact K4 is turned on with contact K2.
  • the first end of the first resistor R1 is respectively connected to the contact line K3 and the live line L of the power supply voltage input end, and the second end of the first resistor R1 is respectively connected with the first end of the second resistor R2 and the first end of the first switch 1 and
  • the second end of the second resistor R2 is connected to the first end of the rectifying unit Q2, and the second end of the rectifying unit Q2 is respectively connected to the zero line N and the first end of the second switch 2, and the rectifying unit Q2
  • the third end and the fourth end are voltage output terminals for supplying voltage to the DC motor M, wherein the DC motor M can also be connected in parallel with a capacitor for filtering; the second end of the first switch 1 and the third resistor respectively
  • the second end of the R3 is connected to the first end of the fourth resistor R4, wherein the first end of the third resistor R3 is connected to the contact K4; the second end of the second switch 2 is respectively connected to the second end of the fourth resistor R4 Connected to contact
  • the resistance of the third resistor R3 is the same as the resistance of the fourth resistor R4, and the third resistor R3 and the fourth resistor R4 are both heating resistor wires;
  • the voltage automatic switching circuit further includes a temperature fuse T is connected to the second end of the rectifying unit Q2 and the first end of the second switch 2, respectively, to function as a protection circuit;
  • the voltage automatic switching circuit further includes a third switch (not shown in FIG. 3) The third switch has one end connected in series with the DC motor M and the other end connected to the voltage output end of the rectifying unit Q2 for controlling the DC motor M to start.
  • the control unit Q1 is respectively connected with the power voltage input terminal and the double relay J1, and the connection between the control unit Q1 and the power voltage input terminal is respectively connected to the live line L and the neutral line N of the power voltage input terminal, and the control unit Q1 is used for detecting the power source voltage input.
  • the voltage of the terminal and generates a control signal according to the voltage, and drives the connection state of the contact of the double relay J1 according to the control signal, that is, the contact K3 is connected to the contact K1 or the contact K5; the contact K4 and the contact K2 or contact K6 is turned on.
  • the control unit 20 is the control unit Q1 in FIG. 3.
  • the control unit 20 includes: a voltage identification module 21, a voltage comparison determination module 22, and a drive module 23.
  • the voltage identification module 21 and the drive module 23 are compared with voltage.
  • the determining module 22 is connected; the voltage identifying module 21 is connected to the power voltage input terminal for identifying the voltage of the power voltage input terminal; the voltage comparison determining module 22 inputs the preset voltage for comparing and determining whether the voltage of the power voltage input terminal is greater than the preset voltage.
  • the first control signal is sent to the driving module 23, and the driving module 23 drives the contact K3 and the contact K1 to be turned on according to the first control signal, and the contact K4 and the contact K2 are turned on; if not, the driving module is 23 sends a second control signal, and the driving module 23 drives the contact K3 and the contact K5 to be turned on according to the second control signal, and the contact K4 and the contact K6 are turned on.
  • the preset voltage is 170 VAC
  • V is the voltage unit volt
  • AC is the alternating current.
  • the first switch 1 and the second switch 2 constitute a switch unit SW2, the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are simultaneously closed, and the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are simultaneously opened.
  • the switch unit SW2 is used to control the heating state of the heating resistor wires R3 and R4, and is used for the cold and warm air control of the hair dryer.
  • the voltage identification module 21 recognizes the V in , and at the same time, through the voltage comparison judging module 22 and the preset voltage comparison judgment, generates a first control signal, and generates a first control signal. Sended to the driving module 23, the driving module 23 drives the contact K3 and the contact K1 through the inductor L of the double relay according to the first control signal, and the contact K4 and the contact K2 are turned on, then the rectifying unit Q2 and the first The resistor R1 and the second resistor R2 are connected in series for supplying voltage to the DC motor M. At the same time, the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are both closed, and the heating resistor wires R3 and R4 are heated in series, thereby realizing High voltage is automatically reduced for the purpose.
  • the voltage identification module 21 recognizes the V in , and at the same time, the voltage comparison judgment module 22 and the preset voltage comparison judgment generate a second control signal, and send the second control signal.
  • the driving module 23 drives the contact K3 and the contact K5 through the inductor L of the double relay according to the second control signal, and the contact K4 and the contact K6 are turned on, and the rectifying unit Q2 and the second resistor are connected.
  • R2 is connected in series, and at the same time, the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are both closed, and the heating resistor wires R3 and R4 are heated in parallel for supplying a voltage to the load.
  • the voltage automatic switching circuit controls the double-connected relay J1 to achieve automatic voltage switching by the control unit Q1, and provides a circuit for an electric appliance that is applicable to multiple voltages.
  • the design needs to be more convenient and safer than the mechanical switching.
  • the voltage automatic switching circuit has fewer components and a simple connection relationship, thereby saving cost.
  • the voltage automatic switching circuit includes a power voltage input terminal (including a fire line L and a neutral line N), and a double relay J1, a first The resistor R1, the third resistor R3, the fourth resistor R4, the first switch 1, the second switch 2, and the control unit Q1.
  • the double relay J1 includes six contacts, respectively a contact K1, a contact K2, a contact K3, a contact K4, a contact K5 and a contact K6, wherein the contact K1, the contact K3 and the contact K5 are disposed at On the same side of the double relay J1, the contact K2, the contact K4 and the contact K6 are disposed on the other side of the double relay J1, and the contact K2 and the contact K3 are short-circuited.
  • the connection state of the double relay J1 includes: the contact K3 is connected to the contact K1 or the contact K5; the contact K4 is connected to the contact K2 or the contact K6.
  • the connection state of the double relay J1 can be controlled by its internal inductor L.
  • the first end of the first resistor R1 is respectively connected to the contact line K3 and the live line L of the power supply voltage input end, and the second end of the first resistor R1 is respectively connected with the first end of the alternating current load, the first end of the first switch 1, and the contact K5 connection, in this embodiment, the AC load is an AC motor AC-M, wherein the second end of the AC motor AC-M is connected to the zero line N and the first end of the second switch; the second of the first switch 1
  • the terminals are respectively connected to the second end of the third resistor R3 and the first end of the fourth resistor R4, wherein the first end of the third resistor R3 is connected to the contact K4; the second end of the second switch 2 is respectively connected to the fourth The second end of the resistor R4 is connected to the contact K6.
  • the resistance of the third resistor R3 is the same as the resistance of the fourth resistor R4, and the third resistor R3 and the fourth resistor R4 are both heating resistor wires;
  • the voltage automatic switching circuit further includes a temperature fuse T , temperature fuse T and AC motor AC-M The second end is connected to the first end of the second switch 2 to function as a protection circuit;
  • the control unit Q1 is respectively connected to the power voltage input terminal and the double relay J1, and the connection between the control unit Q1 and the power voltage input terminal is respectively Connected to the live line L and the neutral line N of the power voltage input terminal, the control unit Q1 is configured to detect the voltage of the power voltage input terminal, generate a control signal according to the voltage, and drive the connection state of the contact of the double relay J1 according to the control signal, That is, the contact K3 is connected to the contact K1 or the contact K5; the contact K4 is connected to the contact K2 or the contact K6.
  • the control unit 20 is the control unit Q1 in FIG. 4.
  • the control unit 20 includes: a voltage identification module 21, a voltage comparison determination module 22, and a drive module 23.
  • the voltage identification module 21 and the drive module 23 are compared with voltage.
  • the determining module 22 is connected; the voltage identifying module 21 is connected to the power voltage input terminal for identifying the voltage of the power voltage input terminal; the voltage comparison determining module 22 inputs the preset voltage for comparing and determining whether the voltage of the power voltage input terminal is greater than the preset voltage.
  • the first control signal is sent to the driving module 23, and the driving module 23 drives the contact K3 and the contact K1 to be turned on according to the first control signal, and the contact K4 and the contact K2 are turned on; if not, the driving module is 23 sends a second control signal, and the driving module 23 drives the contact K3 and the contact K5 to be turned on according to the second control signal, and the contact K4 and the contact K6 are turned on.
  • the preset voltage is 170 VAC
  • V is the voltage unit volt
  • AC is the alternating current.
  • the first switch 1 and the second switch 2 constitute a switch unit SW2, the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are simultaneously closed, and the switch unit SW2 is closed, that is, the first switch 1 and the second switch 2 are simultaneously opened.
  • the switch unit SW2 is used to control the heating state of the heating resistor wires R3 and R4, and is used for the cold and warm air control of the hair dryer.
  • the voltage automatic switching circuit further includes a second resistor R2, and the second end of the first resistor R1 passes through the second resistor R2 and the AC motor AC-M Connected at one end.
  • the embodiment of the invention provides a hair dryer, which comprises the voltage automatic switching circuit provided by the foregoing embodiment, and the hair dryer using the voltage automatic switching circuit can automatically recognize the voltage input by the plug and control the double relay through the control unit.
  • Work choose different resistance combination to supply power to the hair dryer motor, use this voltage to automatically switch the circuit's hair dryer, avoid the human factors and burn off the motor and other components of the hair dryer, thereby improving user convenience and safety.
  • automatic identification switching also provides customers with a more automated and user-friendly hair dryer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

一种电压自动切换电路及电吹风，电压自动切换电路包括双联继电器(J1)、整流单元、第一电阻(R1)、第二电阻(R2)、第三电阻(R3)、第四电阻(R4)、第一开关(1)、第二开关(2)和控制单元(Q1、20)；该电压自动切换电路可自动识别插头输入的电压，并通过控制单元(Q1、20)控制双联继电器(J1)工作，选择不同的电阻组合方式给电吹风的马达供电，而使用该电压自动切换电路的电吹风，可避免人为因素而烧掉电吹风的马达及其他元器件，从而提高用户使用方便性和安全性。

Description

一种电压自动切换电路及电吹风 技术领域
本发明涉及电吹风电路领域，尤其涉及一种电压自动切换电路及电吹风。
背景技术
目前，市场上现有的双电压电吹风在使用的过程中，大多数都是手动调整机械开关选择输入电压来完成电吹风电压转换，这种采用机械开关完成电压切换，往往会因为消费者的疏忽，造成电压使用不当而烧掉电吹风的马达及其它风险。
因此，有必要提供一种电压自动切换电路及电吹风，以解决电吹风不能自能且而存在安全隐患问题。
发明内容
本发明的目的在于提供一种电压自动切换电路及使用该电压自动切换电路的电吹风。
为了解决上述技术问题，第一方面，一种电压自动切换电路，所述的电压自动切换电路包括：电源电压输入端、双联继电器、整流单元、第一电阻、第二电阻、第三电阻、第四电阻、第一开关、第二开关和控制单元；
所述双联继电器还包括六个触点，分别为触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，所述触点K2和所述触点 K3短路连接；所述双联继电器的触点的连接状态包括：所述触点K3与所述触点K1或触点K5接通，所述触点K4与所述触点K2或触点K6接通；
所述第一电阻的第一端分别与所述触点K3和所述电源电压输入端连接，所述第一电阻的第二端分别与所述第二电阻的第一端、所述第一开关的第一端和所述触点K5连接；
所述第二电阻的第二端与所述整流单元的第一端连接，所述整流单元的第二端分别与零线和所述第二开关的第一端连接，所述整流单元的第三端和第四端为电压输出端，用于给负载提供电压；
所述第一开关的第二端分别与所述第三电阻的第二端和所述第四电阻的第一端连接，其中，所述第三电阻的第一端与所述触点K4连接；
所述第二开关的第二端分别与所述第四电阻的第二端和所述触点K6连接；
所述控制单元分别与所述电源电压输入端和所述双联继电器连接，用于检测电源电压输入端的电压，并根据所述电压生成控制信号，以及根据所述控制信号驱动所述双联继电器的触点的连接状态。
进一步地，所述控制单元包括：电压识别模块、电压比较判断模块和驱动模块，所述电压识别模块和所述驱动模块均与所述电压比较判断模块连接；
所述电压识别模块与所述电源电压输入端连接，用于识别所述电源电压输入端的电压；
所述电压比较判断模块输入预设电压，用于比较判断所述电源电压输入端的电压是否大于所述预设电压，若是，则向所述驱动模块发送第一控制信号，所述驱动模块根据所述第一控制信号驱动所述触点K3和所述触点K1接通，所述触点K4和所述触点K2接通；
若否，则向所述驱动模块发送第二控制信号，所述驱动模块根据所述第二控制信号驱动所述触点K3和所述触点K5接通，所述触点K4和所述触点K6接通。
进一步地，所述整流单元包括四个整流二极管，所述四个整流二极管组成桥式整流电路为负载提供直流电压。
优选地，所述电压自动切换电路还包括一温度保险丝，所述温度保险丝分别与所述整流单元的第二端和所述第二开关的第一端连接。
优选地，所述第三电阻的阻值和所述第四电阻的阻值相同。
优选地，所述第三电阻和第四电阻为发热电阻丝。
优选地，所述负载具体为DC马达。
优选地，所述电压自动切换电路还包括第三开关，所述第三开关的一端与所述DC马达连接，另一端与所述整流单元的电压输出端连接。
优选地，所述预设电压为170VAC。
优选地，所述DC马达还并联一电容。
第二方面，一种电压自动切换电路，包括电源电压输入端、双联继电器、交流负载、第一电阻、第三电阻、第四电阻、第一开关、第二开关和控制单元；
所述双联继电器还包括六个触点，分别为触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，所述触点K2和所述触点K3短路连接；所述双联继电器的触点的连接状态包括：所述触点K3与所述触点K1或触点K5接通，所述触点K4与所述触点K2或触点K6接通；
所述第一电阻的第一端分别与所述触点K3和所述电源电压输入端连接，所述第一电阻的第二端分别与所述交流负载的第一端、所述第一开关的第一端和所述触点K5连接，其中，所述交流负载的第二端与零线和所述第二开关的第一端连接；
所述第一开关的第二端分别与所述第三电阻的第二端和所述第四电阻的第一端连接，其中，所述第三电阻的第一端与所述触点K4连接；
所述第二开关的第二端分别与所述第四电阻的第二端和所述触点K6连接；
所述控制单元分别与所述电源电压输入端和所述双联继电器连接，用于检测电源电压输入端的电压，并根据所述电压生成控制信号，以及根据所述控制信号驱动所述双联继电器的触点的连接状态。
优选地，所述电压自动切换电路还包括第二电阻，所述第一电阻的第二端通过所述第二电阻与所述交流负载的第一端连接。
第三方面，一种电吹风，所述电吹风包括：上述中的电压自动切换电路。
有益效果:本发明实施例提供了一种电压自动切换电路，包括双 联继电器、整流单元、第一电阻、第二电阻、第三电阻、第四电阻、第一开关、第二开关和控制单元；该电压自动切换电路可自动识别插头输入的电压，并通过控制单元控制双联继电器工作，选择不同的电阻组合方式给电吹风的马达供电，使用该电压自动切换电路的电吹风，可避免人为因素而烧掉电吹风的马达及其他元器件，从而提高用户使用方便性和安全性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例提供的电压自动切换电路的结构示意图；
图2是本发明一实施例提供的控制单元的结构示意图；
图3是本发明一实施例提供的电吹风的电压自动切换电路的结构示意图；
图4是本发明一实施例提供的电吹风的电压自动切换电路的结构示意图；
图5是本发明一实施例提供的电吹风的电压自动切换电路的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
图1示出了本发明一实施例提供的电压自动切换电路的结构示意图，如图1所示，电压自动切换电路包括电源电压输入端、双联继电器J1、整流单元Q2、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第一开关1、第二开关2和控制单元Q1。电源电压输入端包括火线L和零线N，双联继电器J1包括六个触点，分别触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，触点K1、触点K3和触点K5设置在双联继电器J1同一侧，触点K2、触点K4和触点K6设置在双联继电器J1另一侧，并将触点K2和触点K3短路连接。双联继电器J1连接状态包括：触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。双联继电器J1连接状态可以通过其内部的电感线圈L控制，假设，双联继电器J1默认触点K3与触点K5接通、触点K4与触点K6接通，通过向其内部的电感线圈L发送控制信号，使得触点K3与触点K1接通、触点K4与触点K2接通。第一电阻R1的第一端分别与触点K3和电源电压输入端的火线L连接，第一电阻R1的第二端分别与第二电阻R2的第一端、第一开关1的第一端和触点K5连接；第二电阻R2的第二端与整流单元Q2的第一端连接，整流单元Q2的第二端接分别与零线N和第二开关2的第一端连接，整流单元Q2的第三端和第四端为电压输出端，用于给负 载提供电压；第一开关1的第二端分别与第三电阻R3的第二端和第四电阻R4的第一端连接，其中，第三电阻R3的第一端与触点K4连接；第二开关2的第二端分别与第四电阻R4的第二端和触点K6连接；其中，第一开关1和第二开关2组成开关单元SW2，开关单元SW2闭合即第一开关1和第二开关2同时闭合，开关单元SW2闭合打开即第一开关1和第二开关2同时打开。控制单元Q1分别与电源电压输入端和双联继电器J1连接，控制单元Q1与电源电压输入端连接是指分别与电源电压输入端的火线L和零线N连接，控制单元Q1用于检测电源电压输入端的电压，并根据该电压生成控制信号，以及根据该控制信号驱动双联继电器J1的触点的连接状态，即是触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。
如图2所示，控制单元20即是图1中的控制单元Q1，控制单元20包括：电压识别模块21、电压比较判断模块22和驱动模块23，电压识别模块21和驱动模块23均与电压比较判断模块22连接；电压识别模块21与电源电压输入端连接，用于识别电源电压输入端的电压；电压比较判断模块22输入预设电压，用于比较判断电源电压输入端的电压是否大于该预设电压，若是，则向驱动模块23发送第一控制信号，驱动模块23根据第一控制信号驱动触点K3和触点K1接通，触点K4和触点K2接通；若否，则向驱动模块23发送第二控制信号，驱动模块23根据第二控制信号驱动触点K3和触点K5接通，触点K4和触点K6接通。例如，预设电压为170VAC，V为电压单位伏特，AC表示交流电。
当电源电压输入端的电压Vin不小于170VAC时，电压识别模块21会识别出该Vin，同时经过电压比较判断模块22和预设电压比较判断，生成第一控制信号，并将第一控制信号发送给驱动模块23，驱动模块23根据第一控制信号通过双联继电器的电感线圈L驱动触点K3和触点K1接通，触点K4和触点K2接通，则整流单元Q2与第一电阻R1、第二电阻R2串联，用于给负载提供电压，从而实现将高电压自动降低的目的。
当电源电压输入端的电压Vin小于170VAC时，电压识别模块21会识别出该Vin，同时经过电压比较判断模块22和预设电压比较判断，生成第二控制信号，并将第二控制信号发送给驱动模块23，驱动模块23根据第二控制信号通过双联继电器的电感线圈L驱动触点K3和触点K5接通，触点K4和触点K6接通，则整流单元Q2与第二电阻R2串联，用于给负载提供电压。
从上述实施例，可以看出，当电源电压输入端的电压过高时，该电压自动切换电路通过控制单元Q1控制双联继电器J1实现电压自动切换的目的，给适用多种电压的电器提供了电路设计需要，相比机械的切换，更加方便和安全，同时该电压自动切换电路的元器件使用较少，连接关系简单，因此又可以节约成本。
图3示出了本发明又一实施例提供的电吹风的电压自动切换电路的结构示意图，如图3所示，电压自动切换电路包括电源电压输入端、双联继电器J1、整流单元Q2、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第一开关1、第二开关2和控制单元Q1，其 中，整流单元包括四个整流二极管，即二极管D1-D4，四个整流二极管组成桥式整流电路为负载提供直流电压,负载在本实施中为DC马达M。电源电压输入端包括火线L和零线N，双联继电器J1包括六个触点，分别触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，触点K1、触点K3和触点K5设置在双联继电器J1同一侧，触点K2、触点K4和触点K6设置在双联继电器J1另一侧，并将触点K2和触点K3短路连接。双联继电器J1连接状态包括：触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。双联继电器J1连接状态可以通过其内部的电感线圈L控制，假设，双联继电器J1默认触点K3与触点K5接通、触点K4与触点K6接通，通过向其内部的电感线圈L发送控制信号，使得触点K3与触点K1接通、触点K4与触点K2接通。第一电阻R1的第一端分别与触点K3和电源电压输入端的火线L连接，第一电阻R1的第二端分别与第二电阻R2的第一端、第一开关1的第一端和触点K5连接；第二电阻R2的第二端与整流单元Q2的第一端连接，整流单元Q2的第二端接分别与零线N和第二开关2的第一端连接，整流单元Q2的第三端和第四端为电压输出端，用于给DC马达M提供电压，其中，DC马达M还可并联一电容，用于滤波；第一开关1的第二端分别与第三电阻R3的第二端和第四电阻R4的第一端连接，其中，第三电阻R3的第一端与触点K4连接；第二开关2的第二端分别与第四电阻R4的第二端和触点K6连接。在本实施例中优选地，第三电阻R3的阻值和第四电阻R4的阻值相同，第三电阻R3和第四电阻R4均为发热电阻丝；电压自动切换电路还包 括一温度保险丝T，温度保险丝T分别与整流单元Q2的第二端和第二开关2的第一端连接，起到保护电路的作用；电压自动切换电路还包括第三开关(图3未示出)，第三开关的一端与DC马达M串联连接，另一端与整流单元Q2的电压输出端连接，用于控制DC马达M启动。控制单元Q1分别与电源电压输入端和双联继电器J1连接，控制单元Q1与电源电压输入端连接是指分别与电源电压输入端的火线L和零线N连接，控制单元Q1用于检测电源电压输入端的电压，并根据该电压生成控制信号，以及根据该控制信号驱动双联继电器J1的触点的连接状态，即是触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。结合图2进行说明，控制单元20是图3中的控制单元Q1，控制单元20包括：电压识别模块21、电压比较判断模块22和驱动模块23，电压识别模块21和驱动模块23均与电压比较判断模块22连接；电压识别模块21与电源电压输入端连接，用于识别电源电压输入端的电压；电压比较判断模块22输入预设电压，用于比较判断电源电压输入端的电压是否大于该预设电压，若是，则向驱动模块23发送第一控制信号，驱动模块23根据第一控制信号驱动触点K3和触点K1接通，触点K4和触点K2接通；若否，则向驱动模块23发送第二控制信号，驱动模块23根据第二控制信号驱动触点K3和触点K5接通，触点K4和触点K6接通。例如，预设电压为170VAC，V为电压单位伏特，AC表示交流电。其中，第一开关1和第二开关2组成开关单元SW2，开关单元SW2闭合即第一开关1和第二开关2同时闭合，开关单元SW2闭合打开即第一开关1和第二开关2同时打开， 该开关单元SW2用于控制发热电阻丝R3和R4发热状态，用于电吹风的冷暖风控制。
当电源电压输入端的电压Vin不小于170VAC时，电压识别模块21会识别出该Vin，同时经过电压比较判断模块22和预设电压比较判断，生成第一控制信号，并将第一控制信号发送给驱动模块23，驱动模块23根据第一控制信号通过双联继电器的电感线圈L驱动触点K3和触点K1接通，触点K4和触点K2接通，则整流单元Q2与第一电阻R1、第二电阻R2串联，用于给DC马达M提供电压，同时，开关单元SW2闭合，即第一开关1和第二开关2均闭合，发热电阻丝R3和R4串联加热，从而实现将高电压自动降低的目的。
当电源电压输入端的电压Vin小于170VAC时，电压识别模块21会识别出该Vin，同时经过电压比较判断模块22和预设电压比较判断，生成第二控制信号，并将第二控制信号发送给驱动模块23，驱动模块23根据第二控制信号通过双联继电器的电感线圈L驱动触点K3和触点K5接通，触点K4和触点K6接通，则整流单元Q2与第二电阻R2串联，同时，开关单元SW2闭合，即第一开关1和第二开关2均闭合，发热电阻丝R3和R4并联加热，用于给负载提供电压。
从上述实施例，可以看出，当电源电压输入端的电压过高时，该电压自动切换电路通过控制单元Q1控制双联继电器J1实现电压自动切换的目的，给适用多种电压的电器提供了电路设计需要，相比机械的切换，更加方便和安全，同时该电压自动切换电路的元器件使用较少，连接关系简单，因此又可以节约成本。
图4示出了本发明又一实施例提供的电吹风的电压自动切换电路的结构示意图；电压自动切换电路包括电源电压输入端(包括火线L和零线N)、双联继电器J1、第一电阻R1、第三电阻R3、第四电阻R4、第一开关1、第二开关2和控制单元Q1。双联继电器J1包括六个触点，分别触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，触点K1、触点K3和触点K5设置在双联继电器J1同一侧，触点K2、触点K4和触点K6设置在双联继电器J1另一侧，并将触点K2和触点K3短路连接。双联继电器J1连接状态包括：触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。双联继电器J1连接状态可以通过其内部的电感线圈L控制，假设，双联继电器J1默认触点K3与触点K5接通、触点K4与触点K6接通，通过向其内部的电感线圈L发送控制信号，使得触点K3与触点K1接通、触点K4与触点K2接通。第一电阻R1的第一端分别与触点K3和电源电压输入端的火线L连接，第一电阻R1的第二端分别与交流负载的第一端、第一开关1的第一端和触点K5连接，在本实施例中，交流负载为交流马达AC-M，其中，交流马达AC-M的第二端与零线N和第二开关的第一端连接；第一开关1的第二端分别与第三电阻R3的第二端和第四电阻R4的第一端连接，其中，第三电阻R3的第一端与触点K4连接；第二开关2的第二端分别与第四电阻R4的第二端和触点K6连接。在本实施例中优选地，第三电阻R3的阻值和第四电阻R4的阻值相同，第三电阻R3和第四电阻R4均为发热电阻丝；电压自动切换电路还包括一温度保险丝T，温度保险丝T分别与交流马达AC-M 的第二端和第二开关2的第一端连接，起到保护电路的作用；控制单元Q1分别与电源电压输入端和双联继电器J1连接，控制单元Q1与电源电压输入端连接是指分别与电源电压输入端的火线L和零线N连接，控制单元Q1用于检测电源电压输入端的电压，并根据该电压生成控制信号，以及根据该控制信号驱动双联继电器J1的触点的连接状态，即是触点K3与触点K1或触点K5接通；触点K4与触点K2或触点K6接通。结合图2进行说明，控制单元20是图4中的控制单元Q1，控制单元20包括：电压识别模块21、电压比较判断模块22和驱动模块23，电压识别模块21和驱动模块23均与电压比较判断模块22连接；电压识别模块21与电源电压输入端连接，用于识别电源电压输入端的电压；电压比较判断模块22输入预设电压，用于比较判断电源电压输入端的电压是否大于该预设电压，若是，则向驱动模块23发送第一控制信号，驱动模块23根据第一控制信号驱动触点K3和触点K1接通，触点K4和触点K2接通；若否，则向驱动模块23发送第二控制信号，驱动模块23根据第二控制信号驱动触点K3和触点K5接通，触点K4和触点K6接通。例如，预设电压为170VAC，V为电压单位伏特，AC表示交流电。其中，第一开关1和第二开关2组成开关单元SW2，开关单元SW2闭合即第一开关1和第二开关2同时闭合，开关单元SW2闭合打开即第一开关1和第二开关2同时打开，该开关单元SW2用于控制发热电阻丝R3和R4发热状态，用于电吹风的冷暖风控制。另外，如图5所示，电压自动切换电路还包括第二电阻R2，第一电阻R1的第二端通过第二电阻R2与交流马达AC-M的第 一端连接。
本发明实施例提供了一种电吹风，该电吹风包括前述实施例提供的电压自动切换电路，使用该电压自动切换电路的电吹风可自动识别插头输入的电压，并通过控制单元控制双联继电器工作，选择不同的电阻组合方式给电吹风的马达供电，使用该电压自动切换电路的电吹风，可避免人为因素而烧掉电吹风的马达及其他元器件，从而提高用户使用方便性和安全性，自动识别切换，也给客户提供了更加自动化和人性化的电吹风。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种电压自动切换电路，包括电源电压输入端，其特征在于，还包括：双联继电器、整流单元、第一电阻、第二电阻、第三电阻、第四电阻、第一开关、第二开关和控制单元；
    所述双联继电器还包括六个触点，分别为触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，所述触点K2和所述触点K3短路连接；所述双联继电器的触点的连接状态包括：所述触点K3与所述触点K1或触点K5接通，所述触点K4与所述触点K2或触点K6接通；
    所述第一电阻的第一端分别与所述触点K3和所述电源电压输入端连接，所述第一电阻的第二端分别与所述第二电阻的第一端、所述第一开关的第一端和所述触点K5连接；
    所述第二电阻的第二端与所述整流单元的第一端连接，所述整流单元的第二端分别与零线和所述第二开关的第一端连接，所述整流单元的第三端和第四端为电压输出端，用于给负载提供电压；
    所述第一开关的第二端分别与所述第三电阻的第二端和所述第四电阻的第一端连接，其中，所述第三电阻的第一端与所述触点K4连接；
    所述第二开关的第二端分别与所述第四电阻的第二端和所述触点K6连接；
    所述控制单元分别与所述电源电压输入端和所述双联继电器连接，用于检测电源电压输入端的电压，并根据所述电压生成控制信号，以及根据所述控制信号驱动所述双联继电器的触点的连接状态。
  2. 根据权利要求1所述的电压自动切换电路，其特征在于，所述控制单元包括：电压识别模块、电压比较判断模块和驱动模块，所述电压识别模块和所述驱动模块均与所述电压比较判断模块连接；
    所述电压识别模块与所述电源电压输入端连接，用于识别所述电源电压输入端的电压；
    所述电压比较判断模块输入预设电压，用于比较判断所述电源电压输入端的电压是否大于所述预设电压，若是，则向所述驱动模块发送第一控制信号，所述驱动模块根据所述第一控制信号驱动所述触点K3和所述触点K1接通，所述触点K4和所述触点K2接通；
    若否，则向所述驱动模块发送第二控制信号，所述驱动模块根据所述第二控制信号驱动所述触点K3和所述触点K5接通，所述触点K4和所述触点K6接通。
  3. 根据权利要求1或2所述的电压自动切换电路，其特征在于，所述整流单元包括四个整流二极管，所述四个整流二极管组成桥式整流电路为负载提供直流电压。
  4. 根据权利要求3所述的电压自动切换电路，其特征在于，所述电压自动切换电路还包括一温度保险丝，所述温度保险丝分别与所述整流单元的第二端和所述第二开关的第一端连接。
  5. 根据权利要求4所述的电压自动切换电路，其特征在于，所述第三电阻的阻值和所述第四电阻的阻值相同。
  6. 根据权利要求5所述的电压自动切换电路，其特征在于，所述第三电阻和第四电阻为发热电阻丝。
  7. 根据权利要求6所述的电压自动切换电路，其特征在于，所述负载具体为DC马达。
  8. 一种电压自动切换电路，包括电源电压输入端，其特征在于，还包括：双联继电器、交流负载、第一电阻、第三电阻、第四电阻、第一开关、第二开关和控制单元；
    所述双联继电器还包括六个触点，分别为触点K1、触点K2、触点K3、触点K4、触点K5和触点K6，其中，所述触点K2和所述触点K3短路连接；所述双联继电器的触点的连接状态包括：所述触点K3与所述触点K1或触点K5接通，所述触点K4与所述触点K2或触点K6接通；
    所述第一电阻的第一端分别与所述触点K3和所述电源电压输入端连接，所述第一电阻的第二端分别与所述交流负载的第一端、所述第一开关的第一端和所述触点K5连接，其中，所述交流负载的第二端与零线和所述第二开关的第一端连接；
    所述第一开关的第二端分别与所述第三电阻的第二端和所述第四电阻的第一端连接，其中，所述第三电阻的第一端与所述触点K4连接；
    所述第二开关的第二端分别与所述第四电阻的第二端和所述触点K6连接；
    所述控制单元分别与所述电源电压输入端和所述双联继电器连接，用于检测电源电压输入端的电压，并根据所述电压生成控制信号，以及根据所述控制信号驱动所述双联继电器的触点的连接状态。
  9. 根据权利要求8所述的电压自动切换电路，其特征在于，所述电压自动切换电路还包括第二电阻，所述第一电阻的第二端通过所述第二电阻与所述交流负载的第一端连接。
  10. 一种电吹风，其特征在于，包括权利要求1-9之一所述的电压自动切换电路。
PCT/CN2016/081007 2016-05-04 2016-05-04 一种电压自动切换电路及电吹风 WO2017190295A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/081007 WO2017190295A1 (zh) 2016-05-04 2016-05-04 一种电压自动切换电路及电吹风

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/081007 WO2017190295A1 (zh) 2016-05-04 2016-05-04 一种电压自动切换电路及电吹风

Publications (1)

Publication Number Publication Date
WO2017190295A1 true WO2017190295A1 (zh) 2017-11-09

Family

ID=60202616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/081007 WO2017190295A1 (zh) 2016-05-04 2016-05-04 一种电压自动切换电路及电吹风

Country Status (1)

Country Link
WO (1) WO2017190295A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115356966A (zh) * 2022-08-30 2022-11-18 九牧厨卫股份有限公司 一种吹风机及其控制电路和吹风装置
CN117008520A (zh) * 2023-08-09 2023-11-07 深圳盈特创智能科技有限公司 一种电压自适应的高速风筒控制系统
GB2619047A (en) * 2022-05-25 2023-11-29 Dyson Technology Ltd Hairstyling apparatus with reconfigurable current flows

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2064186U (zh) * 1989-09-08 1990-10-24 山东莱阳市东立电器厂 湿度和风速连续同调电吹风
JPH0690817A (ja) * 1992-02-25 1994-04-05 Matsushita Electric Works Ltd 自動電圧切替温風器
CN201383790Y (zh) * 2009-02-05 2010-01-13 刘宇峰 解决谐波超标的新型交流调温、调速电吹风
CN201681322U (zh) * 2010-03-15 2010-12-22 宁波嘉吉电器厂 一种吹风机电压转换电路
CN105807669A (zh) * 2016-05-04 2016-07-27 深圳市奋达科技股份有限公司 一种电压自动切换电路及电吹风
CN205721170U (zh) * 2016-05-04 2016-11-23 深圳市奋达科技股份有限公司 一种电压自动切换电路及电吹风

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2064186U (zh) * 1989-09-08 1990-10-24 山东莱阳市东立电器厂 湿度和风速连续同调电吹风
JPH0690817A (ja) * 1992-02-25 1994-04-05 Matsushita Electric Works Ltd 自動電圧切替温風器
CN201383790Y (zh) * 2009-02-05 2010-01-13 刘宇峰 解决谐波超标的新型交流调温、调速电吹风
CN201681322U (zh) * 2010-03-15 2010-12-22 宁波嘉吉电器厂 一种吹风机电压转换电路
CN105807669A (zh) * 2016-05-04 2016-07-27 深圳市奋达科技股份有限公司 一种电压自动切换电路及电吹风
CN205721170U (zh) * 2016-05-04 2016-11-23 深圳市奋达科技股份有限公司 一种电压自动切换电路及电吹风

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2619047A (en) * 2022-05-25 2023-11-29 Dyson Technology Ltd Hairstyling apparatus with reconfigurable current flows
GB2620831A (en) * 2022-05-25 2024-01-24 Dyson Technology Ltd Hairstyling apparatus with reconfigurable current flows
CN115356966A (zh) * 2022-08-30 2022-11-18 九牧厨卫股份有限公司 一种吹风机及其控制电路和吹风装置
CN117008520A (zh) * 2023-08-09 2023-11-07 深圳盈特创智能科技有限公司 一种电压自适应的高速风筒控制系统

Similar Documents

Publication Publication Date Title
WO2017190295A1 (zh) 一种电压自动切换电路及电吹风
US9979189B2 (en) Control apparatus using variations in conduction angle as control command
CN208112227U (zh) 一种高可靠性的电吹风控制电路
KR101518663B1 (ko) 모발 건조기
JP2015198075A5 (zh)
TW201605168A (zh) 開關裝置及具有該裝置之負載控制系統
TW201431236A (zh) 無線開關電路
CN105813353B (zh) 一种智能消除uv灯冲击的保护电路及其方法
JP2010199762A (ja) トライアック制御・安定化電源回路を有する電子式スイッチ
TWI565363B (zh) 開關裝置
CA2716828C (en) Control circuit for single-phase ac motor of dryer
CN205721170U (zh) 一种电压自动切换电路及电吹风
CN208274315U (zh) 一种感应电路以及基于感应电路的电吹风
CN203550026U (zh) 吸顶式取暖器的控制电路
CN105807669B (zh) 一种电压自动切换电路及电吹风
TW201929373A (zh) 在線式不間斷電源及其控制方法
CN210042247U (zh) 一种用于沐浴热水器的控制电路
CN102323835B (zh) 一种带压缩机起动功能的电子温控器
CN220017481U (zh) 取暖装置的驱动电路
CN104333942A (zh) 一种具有普通照明与应急照明功能于一体的灯电路装置
CN205829133U (zh) 漏电保护器电压保护装置
CN203586387U (zh) 一种吸顶式取暖器的控制电路
CN105591246A (zh) 一种智能安全插座
CN216121782U (zh) 一种交流输电电路及插排
CN216390486U (zh) 一种交流输电电路及插排

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16900817

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 29/03/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 16900817

Country of ref document: EP

Kind code of ref document: A1