CN202737761U - Switching power supply circuit for pool - Google Patents
Switching power supply circuit for pool Download PDFInfo
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- CN202737761U CN202737761U CN2012203922267U CN201220392226U CN202737761U CN 202737761 U CN202737761 U CN 202737761U CN 2012203922267 U CN2012203922267 U CN 2012203922267U CN 201220392226 U CN201220392226 U CN 201220392226U CN 202737761 U CN202737761 U CN 202737761U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a switching power supply circuit for a pool. The switching power supply circuit is electrically connected between a power grid alternating current and a direct-current output end and comprises an interference suppression circuit, a rectifier and filter circuit, a high-frequency conversion circuit, a square wave rectifier and filter circuit and a control circuit. The interference suppression circuit can eliminate electromagnetic interference between the power grid alternating current and the switching power supply circuit; the rectifier and filter circuit can rectify and filter the power grid alternating current and provides direct-current voltage for the high-frequency conversion circuit; the high-frequency conversion circuit can convert the direct-current voltage into high-frequency alternating-current voltage and isolate the output end from an input power grid alternating current; the square wave rectifier and filter circuit can rectify and filter the high-frequency alternating-current voltage output by the high-frequency conversion circuit to obtain direct-current voltage and prevent the interference of high-frequency noise to load; and the control circuit can detect the output direct-current voltage and maintain the stability of the output voltage. A device using the circuit is more compact and lightweight, higher in voltage stabilizing precision, small in no-load loss, high in efficiency and capable of effectively reducing the standby energy consumption.
Description
Technical field
The utility model relates to a kind of switching power circuit, specifically relates to a kind of pond switching power circuit.
Background technology
Massaging pool or bathing pool below are referred to as the pond, generally comprise filtration, heat and make the functional parts such as wave, and these functional parts use high-tension electricity, and controller uses safety low-voltage electric, and the two or more voltages on the same electrical equipment need to be realized by stabilized voltage power supply.In the market Domestic massage pond or bathing pool, all adopt linear stabilized power supply, what use is common power transformer, although solved the multiple voltage supply problem on the same electrical equipment, but still there are the defectives such as the precision of voltage regulation is low, volume is large, weight is large, no-load loss is large, efficient is low, wherein wt greatly easily causes the pin welding to come off, and no-load loss is large and efficient is low causes standby energy consumption large.
According to the EUP of European Union command request, in January, 2013 household electronic products need to meet the requirement of standby energy consumption standard, otherwise can not enter its market.The linear stabilized power supply of existing massaging pool or bathing pool does not reach the EUP command request.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes a kind of pond switching power circuit, need not to use power transformer, use the device of this circuit more small-sized and light, the precision of voltage regulation is higher, and no-load loss is little, efficient is high, can effectively reduce standby energy consumption.
The technical solution of the utility model is achieved in that
A kind of pond switching power circuit, be electrically connected between grid alternating current and the dc output end, comprise codan, current rectifying and wave filtering circuit, the high frequency conversion circuit, square wave current rectifying and wave filtering circuit and control circuit, the input of described codan is connected with described grid alternating current, the output of described codan is connected with the input of described current rectifying and wave filtering circuit, the output of described current rectifying and wave filtering circuit is connected with the input of described high frequency conversion circuit, described high frequency conversion circuit is provided with several conversion outputs, corresponding each conversion output, described square wave current rectifying and wave filtering circuit is provided with a square wave rectifying and wave-filtering electronic circuit, described conversion output is connected with the input of described square wave rectifying and wave-filtering electronic circuit, the output of described square wave rectifying and wave-filtering electronic circuit is connected with described dc output end, the sampling end of described control circuit is connected with the output of described square wave rectifying and wave-filtering electronic circuit, and the control end of described control circuit is connected with the input of described high frequency conversion circuit; Described codan can be eliminated described grid alternating current to switching power circuit and the switching power circuit electromagnetic interference to two different directions of described grid alternating current; Described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides direct voltage; Described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, isolation output and input grid alternating current; Described square wave current rectifying and wave filtering circuit can obtain the direct voltage of needs with the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output, and prevents that high-frequency noise is to load disturbance; Described control circuit can detect the direct voltage of output, and keeps the stable of output voltage.
As further improvement of the utility model, described codan can be eliminated described grid alternating current: be provided with choke L1, capacitor C 1 and capacitor C 2, described capacitor C 1 is connected across the input of described choke L1, and described capacitor C 2 is connected across the output of described choke.
As further improvement of the utility model, described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides the structure of direct voltage be: be provided with rectifier bridge B1 and electrochemical capacitor E1, described electrochemical capacitor E1 is connected across the output of described rectifier bridge B1.
As further improvement of the utility model, described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, the isolation output with the structure of input grid alternating current is: be provided with high frequency transformer T1, resistance R 1, capacitor C 3 and diode D1, described resistance R 1 and the input that is connected to again described high frequency transformer T1 after described diode D1 is connected in series, described capacitor C 3 is connected across the two ends of described resistance R 1.
As further improvement of the utility model, described square wave current rectifying and wave filtering circuit can obtain the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output the direct voltage of needs, and prevent that high-frequency noise to the structure of load disturbance being: described square wave current rectifying and wave filtering circuit comprises a described square wave rectifying and wave-filtering electronic circuit at least, described square wave rectifying and wave-filtering electronic circuit is provided with diode D2, capacitor C 4, electrochemical capacitor E2, inductance L 2, electrochemical capacitor E3 and capacitor C 5, described diode D2 is connected in series with described inductance L 2, described capacitor C 4 and electrochemical capacitor E2 are connected across respectively the input of described inductance L 2, and described capacitor C 5 and electrochemical capacitor E3 are connected across respectively the output of described inductance L 2.
As further improvement of the utility model, described control circuit can detect the direct voltage of output, and keep the stable structure of output voltage to be: to be provided with resistance R 2 and resistance R 3, three terminal regulator U3, optocoupler U2, resistance R 4 and R5, capacitor C 6 and C7 and switching power source chip U1, described resistance R 2 one ends of the anode series of described optocoupler U2, the negative electrode of described optocoupler U2 is connected in series described resistance R 3 one ends, described resistance R 2 other ends and resistance R 3 other ends are connected to respectively the output of described square wave rectification circuit, the collector electrode of described optocoupler U2 is connected with the Enable Pin of described switching power source chip U1, the emitter of described optocoupler U2 is connected with the source terminal of described switching power source chip U1, the drain electrode exit of described switching power source chip U1 accesses the input of described high frequency conversion circuit, the bypass end of described switching power source chip U1 is connected with described capacitor C 6, described resistance R 4 is connected with the output of described square wave rectification circuit with the R5 serial connection is rear, the plus earth of described three terminal regulator U3, the control utmost point is connected between described resistance R 4 and the resistance R 5, and negative electrode is connected between the negative electrode of resistance R 3 and described optocoupler U2.
As further improvement of the utility model, be provided with fuse FUSE and piezo-resistance ZNR, described fuse FUSE is serially connected with the input of described codan, and described piezo-resistance ZNR is connected to the input of described codan.
The beneficial effects of the utility model are: the utility model provides a kind of pond switching power circuit, be electrically connected between grid alternating current and the output, comprise codan, current rectifying and wave filtering circuit, the high frequency conversion circuit, square wave current rectifying and wave filtering circuit and control circuit, described high frequency conversion circuit is provided with several conversion outputs, corresponding each conversion output, described square wave current rectifying and wave filtering circuit is provided with a square wave rectifying and wave-filtering electronic circuit, wherein, described codan can be eliminated described grid alternating current to switching power circuit and the switching power circuit electromagnetic interference to two different directions of described grid alternating current; Described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides direct voltage; Described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, isolation output and input grid alternating current; Described square wave rectification circuit can obtain the direct voltage of needs with the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output, and prevents that high-frequency noise is to load disturbance; Described control circuit can detect the direct voltage of output, and the maintenance output voltage is stable, use the appliance device of this switching power circuit, compare traditional linear stabilized power supply, need not to use power transformer, thereby device is more small-sized and light, the precision of voltage regulation is higher, and no-load loss is little, efficient is high, can effectively reduce standby energy consumption, its standby energy consumption easily meets the EUP command request that up-to-date electric equipment products enter EU market, can open passage for the product introduction European market.
Description of drawings
Fig. 1 is the utility model pond switching power circuit block diagram;
Fig. 2 is the utility model pond switching power circuit schematic diagram.
Embodiment
As depicted in figs. 1 and 2, a kind of pond switching power circuit, be electrically connected between grid alternating current and the dc output end, comprise codan, current rectifying and wave filtering circuit, the high frequency conversion circuit, square wave current rectifying and wave filtering circuit and control circuit, the input of described codan is connected with described grid alternating current, the output of described codan is connected with the input of described current rectifying and wave filtering circuit, the output of described current rectifying and wave filtering circuit is connected with the input of described high frequency conversion circuit, described high frequency conversion circuit is provided with several conversion outputs, corresponding each conversion output, described square wave current rectifying and wave filtering circuit is provided with a square wave rectifying and wave-filtering electronic circuit, described conversion output is connected with the input of described square wave rectifying and wave-filtering electronic circuit, the output of described square wave rectifying and wave-filtering electronic circuit is connected with described dc output end, the sampling end of described control circuit is connected with the output of described square wave rectifying and wave-filtering electronic circuit, and the control end of described control circuit is connected with the input of described high frequency conversion circuit; Described codan can be eliminated described grid alternating current to switching power circuit and the switching power circuit electromagnetic interference to two different directions of described grid alternating current; Described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides direct voltage; Described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, isolation output and input grid alternating current; Described square wave current rectifying and wave filtering circuit can obtain the direct voltage of needs with the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output, and prevents that high-frequency noise is to load disturbance; Described control circuit can detect the direct voltage of output, and keeps the stable of output voltage.
Preferably, described codan can be eliminated described grid alternating current: be provided with choke L1, capacitor C 1 and capacitor C 2, described capacitor C 1 is connected across the input of described choke L1, and described capacitor C 2 is connected across the output of described choke.
Preferably, described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides the structure of direct voltage be: be provided with rectifier bridge B1 and electrochemical capacitor E1, described electrochemical capacitor E1 is connected across the output of described rectifier bridge B1.
Preferably, described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, the isolation output with the structure of input grid alternating current is: be provided with high frequency transformer T1, resistance R 1, capacitor C 3 and diode D1, described resistance R 1 and the input that is connected to again described high frequency transformer T1 after described diode D1 is connected in series, described capacitor C 3 is connected across the two ends of described resistance R 1.
Preferably, described square wave current rectifying and wave filtering circuit can obtain the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output the direct voltage of needs, and prevent that high-frequency noise to the structure of load disturbance being: described square wave current rectifying and wave filtering circuit comprises a described square wave rectifying and wave-filtering electronic circuit at least, described square wave rectifying and wave-filtering electronic circuit is provided with diode D2, capacitor C 4, electrochemical capacitor E2, inductance L 2, electrochemical capacitor E3 and capacitor C 5, described diode D2 is connected in series with described inductance L 2, described capacitor C 4 and electrochemical capacitor E2 are connected across respectively the input of described inductance L 2, described capacitor C 5 and electrochemical capacitor E3 are connected across respectively the output of described inductance L 2, like this, as required, several outputs of high frequency conversion circuit, can export the direct voltage of different magnitudes of voltage behind the rectifying and wave-filtering of process, such as the direct voltage of 12V and the direct voltage of 5V, like this, the hydraulic pressure switch of massaging pool, temperature limiter and control relay are by the 12V DC-voltage supply, temperature sensor and the control board of button is housed by the 5V DC-voltage supply, and 12V direct voltage and 5V direct voltage belong to safety low-voltage, allow human body directly to contact, thereby guaranteed the user security use.
Preferably, described control circuit can detect the direct voltage of output, and keep the stable structure of output voltage to be: to be provided with resistance R 2 and resistance R 3, three terminal regulator U3, optocoupler U2, resistance R 4 and R5, capacitor C 6 and C7 and switching power source chip U1, described resistance R 2 one ends of the anode series of described optocoupler U2, the negative electrode of described optocoupler U2 is connected in series described resistance R 3 one ends, described resistance R 2 other ends and resistance R 3 other ends are connected to respectively the output of described square wave rectification circuit, the collector electrode of described optocoupler U2 is connected with the Enable Pin of described switching power source chip U1, the emitter of described optocoupler U2 is connected with the source terminal of described switching power source chip U1, the drain electrode exit of described switching power source chip U1 accesses the input of described high frequency conversion circuit, the bypass end of described switching power source chip U1 is connected with described capacitor C 6, described resistance R 4 is connected with the output of described square wave rectification circuit with the R5 serial connection is rear, the plus earth of described three terminal regulator U3, the control utmost point is connected between described resistance R 4 and the resistance R 5, negative electrode is connected between the negative electrode of resistance R 3 and described optocoupler U2, like this, control circuit is sampled to three terminal regulator U3 by resistance R 4 and R5 series connection, compare with the reference voltage of three terminal regulator U3 inside, then according to the brightness of controlling again optocoupler U2 interior light emitting diodes than the signal that goes out, resistance by the inner other end triode of luminous brilliance control optocoupler U2, namely changed the electric current of switching power source chip U1 detection pin, size according to electric current, switching power source chip U1 will adjust the duty ratio of output signal automatically, be the pulse duration of the oscillator of modulating switch power source chip U1 inside, thereby the control high frequency transformer is to keep the stable of output voltage.
Preferably, be provided with fuse FUSE and piezo-resistance ZNR, described fuse FUSE is serially connected with the input of described codan, and described piezo-resistance ZNR is connected to the input of described codan, like this, when grid ac voltage is too high, piezo-resistance ZNR conducting, short circuit between the input live wire of codan and the zero line produces large electric current, fuse FUSE fusing, thus the circuit that has guaranteed Switching Power Supply is not damaged.
Above embodiment is with reference to accompanying drawing; preferred embodiment of the present utility model is elaborated; those skilled in the art is by carrying out modification or the change on the various forms to above-described embodiment; but do not deviate from the situation of essence of the present utility model, all drop within the protection range of the present utility model.
Claims (7)
1. pond switching power circuit, be electrically connected between grid alternating current and the dc output end, it is characterized in that: comprise codan, current rectifying and wave filtering circuit, the high frequency conversion circuit, square wave current rectifying and wave filtering circuit and control circuit, the input of described codan is connected with described grid alternating current, the output of described codan is connected with the input of described current rectifying and wave filtering circuit, the output of described current rectifying and wave filtering circuit is connected with the input of described high frequency conversion circuit, described high frequency conversion circuit is provided with several conversion outputs, corresponding each conversion output, described square wave current rectifying and wave filtering circuit is provided with a square wave rectifying and wave-filtering electronic circuit, described conversion output is connected with the input of described square wave rectifying and wave-filtering electronic circuit, the output of described square wave rectifying and wave-filtering electronic circuit is connected with described dc output end, the sampling end of described control circuit is connected with the output of described square wave rectifying and wave-filtering electronic circuit, and the control end of described control circuit is connected with the input of described high frequency conversion circuit; Described codan can be eliminated described grid alternating current to switching power circuit and the switching power circuit electromagnetic interference to two different directions of described grid alternating current; Described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides direct voltage; Described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, isolation output and input grid alternating current; Described square wave current rectifying and wave filtering circuit can obtain the direct voltage of needs with the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output, and prevents that high-frequency noise is to load disturbance; Described control circuit can detect the direct voltage of output, and keeps the stable of output voltage.
2. pond according to claim 1 switching power circuit, it is characterized in that: described codan can be eliminated described grid alternating current and to switching power circuit and switching power circuit to the structure of the electromagnetic interference of two different directions of described grid alternating current be: be provided with choke L1, capacitor C 1 and capacitor C 2, described capacitor C 1 is connected across the input of described choke L1, and described capacitor C 2 is connected across the output of described choke.
3. pond according to claim 1 switching power circuit, it is characterized in that: described current rectifying and wave filtering circuit can carry out rectifying and wave-filtering to described grid alternating current, for described high frequency conversion circuit provides the structure of direct voltage be: be provided with rectifier bridge B1 and electrochemical capacitor E1, described electrochemical capacitor E1 is connected across the output of described rectifier bridge B1.
4. pond according to claim 1 switching power circuit, it is characterized in that: described high frequency conversion circuit can become high-frequency ac voltage with dc voltage conversion, the isolation output with the structure of input grid alternating current is: be provided with high frequency transformer T1, resistance R 1, capacitor C 3 and diode D1, described resistance R 1 and the input that is connected to again described high frequency transformer T1 after described diode D1 is connected in series, described capacitor C 3 is connected across the two ends of described resistance R 1.
5. pond according to claim 1 switching power circuit, it is characterized in that: described square wave current rectifying and wave filtering circuit can obtain the high-frequency ac voltage rectifying and wave-filtering of described high frequency conversion circuit output the direct voltage of needs, and prevent that high-frequency noise to the structure of load disturbance being: described square wave current rectifying and wave filtering circuit comprises a described square wave rectifying and wave-filtering electronic circuit at least, described square wave rectifying and wave-filtering electronic circuit is provided with diode D2, capacitor C 4, electrochemical capacitor E2, inductance L 2, electrochemical capacitor E3 and capacitor C 5, described diode D2 is connected in series with described inductance L 2, described capacitor C 4 and electrochemical capacitor E2 are connected across respectively the input of described inductance L 2, and described capacitor C 5 and electrochemical capacitor E3 are connected across respectively the output of described inductance L 2.
6. pond according to claim 1 switching power circuit, it is characterized in that: described control circuit can detect the direct voltage of output, and keep the stable structure of output voltage to be: to be provided with resistance R 2 and resistance R 3, three terminal regulator U3, optocoupler U2, resistance R 4 and R5, capacitor C 6 and C7 and switching power source chip U1, described resistance R 2 one ends of the anode series of described optocoupler U2, the negative electrode of described optocoupler U2 is connected in series described resistance R 3 one ends, described resistance R 2 other ends and resistance R 3 other ends are connected to respectively the output of described square wave rectification circuit, the collector electrode of described optocoupler U2 is connected with the Enable Pin of described switching power source chip U1, the emitter of described optocoupler U2 is connected with the source terminal of described switching power source chip U1, the drain electrode exit of described switching power source chip U1 accesses the input of described high frequency conversion circuit, the bypass end of described switching power source chip U1 is connected with described capacitor C 6, described resistance R 4 is connected with the output of described square wave rectification circuit with the R5 serial connection is rear, the plus earth of described three terminal regulator U3, the control utmost point is connected between described resistance R 4 and the resistance R 5, and negative electrode is connected between the negative electrode of resistance R 3 and described optocoupler U2.
7. according to claim 1 to 6 each described pond switching power circuits, it is characterized in that: be provided with fuse FUSE and piezo-resistance ZNR, described fuse FUSE is serially connected with the input of described codan, and described piezo-resistance ZNR is connected to the input of described codan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203922267U CN202737761U (en) | 2012-08-09 | 2012-08-09 | Switching power supply circuit for pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203922267U CN202737761U (en) | 2012-08-09 | 2012-08-09 | Switching power supply circuit for pool |
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| Publication Number | Publication Date |
|---|---|
| CN202737761U true CN202737761U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203922267U Expired - Fee Related CN202737761U (en) | 2012-08-09 | 2012-08-09 | Switching power supply circuit for pool |
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| CN (1) | CN202737761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580507A (en) * | 2012-08-09 | 2014-02-12 | 昆山联华印务有限公司 | Switching power circuit for pool |
| CN106870974A (en) * | 2017-03-01 | 2017-06-20 | 深圳驰迅科技有限公司 | A kind of Multi-function compatible type fluorescent tube |
-
2012
- 2012-08-09 CN CN2012203922267U patent/CN202737761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580507A (en) * | 2012-08-09 | 2014-02-12 | 昆山联华印务有限公司 | Switching power circuit for pool |
| CN106870974A (en) * | 2017-03-01 | 2017-06-20 | 深圳驰迅科技有限公司 | A kind of Multi-function compatible type fluorescent tube |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20160809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |