CN201467002U

CN201467002U - Power supply energy-saving circuit for household appliances and office equipment

Info

Publication number: CN201467002U
Application number: CN200920132011XU
Authority: CN
Inventors: 王中美
Original assignee: 王中美
Current assignee: New base electrical appliance (Shenzhen) Co., Ltd.
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-05-12
Anticipated expiration: 2019-05-22

Abstract

The util power source ity model relates to a power supply energy-saving circuit for household appliances and office equipment, which comprises two groups of power supply circuits controlled by an energy-saving control switch, wherein one group adopts a resistance capacitance voltage reduction (also called RC voltage reduction) power supply circuit comprising an resistor (R) and a capacitor (C) and provides a direct current (DC) power supply used for a standby/shutdown mode after receiving rectifying and wave-filtering, thereby satisfying the standby/shutdown type energy-saving and power-saving requirements of the household appliances and the office equipment; and the other group comprises power supplies capable of providing DC high current, which can serve as direct current sources required for the normal operation of the household appliances and the office equipment. When the household appliances and the office equipment enter into the normal operation from the standby/shutdown mode, the energy-saving control switch cuts in the DC high-current power supplies.

Description

Household electrical appliance and office equipment power supply energy-saving circuit

Technical field

Power supply energy-saving circuit when the utility model relates to household electrical appliance and office equipment standby (Standby) or closes (Off-mode) pattern, just exchanging (AC) power supply decompression transformation is the power supply energy-saving circuit of direct current (DC) power supply, and the power supply energy-saving circuit constitutes various household electrical appliance and office equipment with miscellaneous part.

Background technology

On December 17th, 2008, EU Committee has put into effect ecological design rules, with the standby or the " shut " mode" energy consumption of minimizing household electronic products and office equipment, and in formal enforcement on January 7th, 2009.Laws and regulations requirement: before 2013, the standby energy consumption of all household electrical appliance and office equipment must be less than 1W (not having indicating device when standby or " shut " mode") or less than 2W (indicating device is arranged when standby or " shut " mode"), must be from all household electrical appliance in 2013 and office equipment standby or " shut " mode" energy consumption less than 0.5W (not having indicating device when standby or " shut " mode") or less than 1W (indicating device is arranged when standby or " shut " mode"), and before the year two thousand twenty, making standby or " shut " mode" energy consumption reduce 75% again, this is the requirement of human sustainable development, be energy-saving and emission-reduction, the needs of environmental protection, be the trade technology barriers that European Union is provided with, also be to keep and strengthen the technical problem that the international competitiveness institute of China's household electrical appliance and office equipment must solution.

In household electrical appliance and the office equipment, most of products are all wanted standby or the big problem of " shut " mode" energy consumption: power transformer step-down method has copper loss, iron loss to cause, resistance-capacitance depressurization circuit big from loss to have the big problem of resistance power consumption, Switching Power Supply circuit also to be arranged from the big problem of loss, all is difficult to satisfy the ecological design implementation scheme laws and regulations requirement of EU Committee's standby or " shut " mode".

The utility model content

In order to solve household electrical appliance and office equipment standby or " shut " mode" energy saving; problem cuts down the consumption of energy; the utility model provides a kind of household electrical appliance and office equipment standby (Standby) and closes (Off-mode) mode power energy-saving circuit; this power supply energy-saving circuit; use common electronic devices and components; be easy to produce combination, working stability is reliable, with low cost, meets the requirement of protection human health and environment, the saving energy.

The technical scheme that the utility model technical solution problem is adopted is:

The utility model provides a kind of household electrical appliance and office equipment power supply energy-saving circuit (power saving circuit), comprising: two groups of power circuits are formed:

One group be low-power consumption satisfy the required DC low current power circuit of household electrical appliance and office equipment standby or " shut " mode";

One group is the power power-supply circuit that D.C. high-current can be provided, the D.C. high-current supply voltage when satisfying household electrical appliance and office equipment normal operation;

Two groups of power circuits are controlled by the Energy Saving Control switch, cut off the input power supply of D.C. high-current power power-supply voltage when standby or " shut " mode", realize the power and energy saving purpose, when household electrical appliance and office equipment enter normal operation, at first by Energy Saving Control switch connection D.C. high-current power power-supply voltage, the current/voltage value when satisfying operate as normal.

Description of drawings

Embodiment of the present utility model is elaborated with way of example below in conjunction with accompanying drawing, these features of the present utility model, characteristics and advantage will be more readily apparent from;

Fig. 1. be embodiment of the utility model, isolable power supply energy-saving circuit during work that RC step-down halfwave rectifier power circuit and power transformer are formed;

Fig. 2. be embodiment of the utility model, the power supply energy-saving circuit of not isolating during work that RC step-down halfwave rectifier power circuit and power transformer are formed;

Fig. 3. be embodiment of the utility model, isolable power supply energy-saving circuit during work that RC step-down full-wave rectifier power supply circuit and power transformer are formed;

Fig. 4. be embodiment of the utility model, the power supply energy-saving circuit of not isolating during work that RC step-down full-wave rectifier power supply circuit and power transformer are formed;

Fig. 5 is embodiment of the utility model, the two groups of halfwave rectifier power supply energy-saving circuits that the RC voltage-dropping power supply circuit is formed;

Fig. 6 is embodiment of the utility model: the power supply energy-saving circuit that RC voltage-dropping power supply circuit and switching power circuit are formed.

Form by following with reference to the described power supply energy-saving circuit of embodiment of figure 1. the utility model:

The RC reduction voltage circuit is made up of dropping resistor 4 and decompression capacitor 3, is installed in the input 9b of supply voltage 9, and the described RC reduction voltage circuit other end is connected with the rectification circuit that

rectifier diode

6,7 is formed;

Filter regulator circuit is made up of filter capacitor 10 and voltage stabilizing didoe 8, is installed between the negative terminal of the anode of rectifier diode 6 and rectifier diode 7, exports standby or " shut " mode" DC power supply voltage through diode 11 between 20 and 19;

Power transformer 12, elementary winding 12a connects dpdt double-pole double-throw (DPDT) Energy Saving Control switch 1, and secondary winding 12b connects full-

wave rectification diode

13,14,15th, filter capacitor;

Dpdt double-pole double-throw (DPDT) Energy Saving Control switch 1 is installed between supply voltage 9 input 9a, the 9b, the energy-saving electric power circuit of control transformation standby or " shut " mode" or big current power power circuit (power transformer 12);

Voltage stabilizing circuit, form by adjusting pipe 16, voltage stabilizing didoe 17, resistance 18 and

filter capacitor

5,19, the output galvanic current is pressed between 20, exportable higher direct voltage between 21,20, the 19th, the common reference point of DC low current supply voltage and big current power supply voltage.

With reference to the described power supply energy-saving circuit of figure 2. embodiment of the present utility model following feature is arranged: the Energy Saving Control switch is with single-pole single-throw switch (SPST) 2, and the input power connection of controlling big current power power supply whether; Be connected by connecting line 22 between the elementary winding 12a of power transformer 12 and the dc power output end 20, output dc voltage is not isolated with input power supply 9; Other features are identical with Fig. 1 embodiment.

Form by following with reference to the described power supply energy-saving circuit of figure 3. embodiment of the present utility model: Energy Saving Control switch 1, it is a double-point double-throw switch, the RC step-down energy-saving electric power circuit of switching controls standby or " shut " mode", or the big current power power circuit of power transformer 12 compositions; The RC reduction voltage circuit is made up of decompression capacitor 3, dropping resistor 4; Rectification circuit is made up of full-wave bridge rectifier circuit 24, and other features are identical with Fig. 1 embodiment.

Form by following with reference to the described power supply energy-saving circuit of figure 5. embodiment of the present utility model:

Two groups of RC reduction voltage circuits are formed:

DC low current supply voltage when one group of RC reduction voltage circuit provides standby or " shut " mode", form by decompression capacitor 3, dropping resistor 4,

rectifier diode

6,7 voltage stabilizing didoes 8,

filter capacitor

10,19,20 output dc voltages, the 20th, the common reference point of DC low current supply voltage and big current power supply voltage;

D.C. high-current supply voltage when one group of RC reduction voltage circuit provides normal operation, form by decompression capacitor 26, dropping resistor 27,

rectifier diode

31,32, voltage stabilizing didoe 33,34,

filter capacitor

15,21 is exportable than High Level DC Voltage, and two groups of RC reduction voltage circuits are by 2 controls of single-pole single-throw(SPST Energy Saving Control switch.

With reference to the described power supply energy-saving circuit of figure 6. embodiment of the present utility model following feature is arranged: standby or " shut " mode" power supply dc voltage circuit are made up of RC reduction voltage circuit and rectification filtering voltage stabilizing circuit: working power voltage is provided by Switching Power Supply when household electrical appliance and office equipment normal operation: Switching Power Supply is by bridge rectifier 36, filter capacitor 37, Switching Power Supply IC38, isolating transformer 39, filter capacitor 42, feedback circuit 40 is formed, 20, the higher D.C. high-current supply voltage of output between 43, the 20th, the common reference point of DC low current supply voltage and big current power supply voltage; Conversion and control between two groups of power supplys is implemented with Energy Saving Control switch 1.

Household electrical appliance described in the utility model and office equipment power supply energy-saving circuit also is used to produce all products, equipment, utensil, the indoor and outdoor lighting control that need DC power supply voltage.

Some changes each parts installation site of described power supply energy-saving circuit, or some variation of selected electronic devices and components, or reduces certain part, or increases some auxiliary electron components and parts, and so all operation principles are the same, or near the same.

Above embodiment is used for illustrating the utility model, and is not as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of above embodiment.

Claims

1. household electrical appliance and office equipment power supply energy-saving circuit is characterized in that, comprising: two groups of power circuits are formed:

One group be low-power consumption satisfy the required DC low current low-voltage energy-saving electric power circuit of household electrical appliance and office equipment standby or " shut " mode";

Two groups of power circuits are controlled by the Energy Saving Control switch, when household electrical appliance and office equipment standby or " shut " mode", cut off the input power supply of described D.C. high-current supply voltage, realize the power and energy saving purpose; When household electrical appliance and office equipment enter normal operation, at first by the described D.C. high-current group of Energy Saving Control switch connection supply voltage, the current/voltage value when satisfying household electrical appliance and office equipment operate as normal.

2. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, the D.C. high-current power power-supply circuit that described household electrical appliance and office equipment normal operation are used, form by resistance-capacitance depressurization power circuit or Switching Power Supply class voltage-stabilized power supply circuit that the linear voltage-stabilized power supply circuit of power transformer step-down or resistance (R) and electric capacity (C) are formed, described D.C. high-current power power-supply circuit can offer described household electrical appliance and office equipment needed D.C. high-current supply voltage when operate as normal.

3. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, described household electrical appliance and office equipment standby or " shut " mode" low current power supply circuit, the D.C. regulated power supply of stable DC low current low-voltage can be provided, common reference point be arranged with described D.C. high-current power power-supply circuit.

4. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, described DC low current low-voltage energy-saving electric power circuit, form by resistance-capacitance depressurization circuit and rectification, filtering, voltage stabilizing circuit that resistance and electric capacity are formed, the DC low current voltage that must use when household electrical appliance and office equipment standby or " shut " mode" can be provided can satisfy the energy-saving electric power circuit low-power consumption requirement of standby or " shut " mode".

5. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, household electrical appliance and office equipment are when work or standby or " shut " mode", various combination or switching to described two groups of power circuits are controlled by described Energy Saving Control switch, household electrical appliance and office equipment are normal mode of operation, the input power supply of the described D.C. high-current power power-supply of described Energy Saving Control switch connection circuit, and maintain whole course of normal operation required D.C. high-current voltage all is provided all the time, when household electrical appliance and office equipment are in or are converted to standby or " shut " mode", described Energy Saving Control switch cuts off the input power supply of D.C. high-current power power-supply circuit, and power circuit keeps the energy saving pattern.

6. power supply energy-saving circuit as claimed in claim 1, its feature are in, the rectification circuit of described two groups of power circuits: or half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.

7. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, described D.C. high-current power power-supply circuit output dc voltage is one group of DC power supply voltage or two groups of DC power supply voltages or organize DC power supply voltage more or the supply voltage of interchange is also arranged.

8. power supply energy-saving circuit as claimed in claim 1, it is characterized in that, described household electrical appliance and office equipment normal operation D.C. high-current power power-supply circuit, when forming by the power transformer step-down or by Switching Power Supply, output direct voltage and alternating current input power supplying or isolation or do not isolate, do not isolate with D.C. high-current power power-supply circuit and alternating current input power supplying with the low current power supply circuit with by the operate as normal that the resistance-capacitance depressurization circuit is formed by standby or " shut " mode" that the resistance-capacitance depressurization circuit is formed.