CN201174603Y - Solar inverter - Google Patents
Solar inverter Download PDFInfo
- Publication number
- CN201174603Y CN201174603Y CNU2008200085828U CN200820008582U CN201174603Y CN 201174603 Y CN201174603 Y CN 201174603Y CN U2008200085828 U CNU2008200085828 U CN U2008200085828U CN 200820008582 U CN200820008582 U CN 200820008582U CN 201174603 Y CN201174603 Y CN 201174603Y
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- CN
- China
- Prior art keywords
- triode
- voltage
- stabiliser tube
- resistance
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a solar inverting power supply, which relates to a small solar power supply, in particular to a solar power supply with direct current and alternating current outputs, which comprises a solar panel (S), a storage battery (E), and an inverting circuit (N). The solar power supply with the direct current and alternating current outputs is characterized in that: a constant current charging circuit is connected between an output end of the solar panel (S) and an input end of the storage battery (E); an over-charging protection circuit is connected in a charging circuit; a direct current output end of the storage battery (E) is connected with an undervoltage protection circuit; and an overvoltage protection circuit is connected between an output end of the storage battery (E) and an input end of the inverting circuit (N).
Description
Technical field
The present invention relates to a kind of small-sized solar power supply, particularly a kind of have direct current and exchange the sun-generated electric power of exporting.
Background technology
Utilize solar photovoltaic technology that the device of direct current and Alternating Current Power Supply is carried out in load, generally comprise solar panel, storage battery, charge circuit, inverter and current supply circuit.Direct current can both be provided and exchange output.But it is complicated that these devices all exist circuit in various degree, uses components and parts many, and can not taking into account alternating current-direct current, problem, particularly salvo such as to export simultaneously few, causes a lot of faults easily.Give vast areas without electricity, backwoodsman little educational herdsman use and maintenance brings a lot of inconvenience.
The content of invention
The present invention is in order to overcome above-mentioned defective, and a kind of circuit of exploitation is more succinct, and reliable operation is multiple functional, with low cost, and a new generation easy to maintenance has the charging of constant current self adaptation, full-automatic protection, and the contrary control all-in-one of DC, AC output is arranged simultaneously.
Technical scheme of the present invention is that this power supply comprises solar panel S, storage battery E, inverter circuit N, is characterized in: be connected with a constant current charge circuit between the input of the output of solar panel S and storage battery E; In charge circuit, be connected with an additives for overcharge protection circuit; Dc output end at storage battery E is connected with a under-voltage protecting circuit; Between the input of the output of storage battery E and inverter circuit N, be connected with an overvoltage crowbar.
Another characteristics of the present invention are: described constant current charge circuit is that the positive terminal of solar panel S connects triode Q
4Emitter, triode Q
4Collector electrode connect the end of variable resistor W, the other end of variable resistor W is through relay J
1Normally-closed contact J
1-1 connects the positive terminal of storage battery E, the sliding end of another termination variable resistor W of variable resistor W; Triode Q
4Base stage connect triode Q
5Collector electrode, triode Q
4Collector electrode through voltage-stabiliser tube ZD
5, resistance R
8Back ground connection, triode Q
5Emitter meets voltage-stabiliser tube ZD
5With resistance R
8Between node, triode Q
5Base stage connect the other end of variable resistor W.
Another characteristics of the present invention are: described additives for overcharge protection circuit is positive source termination voltage-stabiliser tube DZ
2, resistance R
3After meet triode Q
1Base stage, triode Q
1Collector electrode through relay J
1After connect the positive pole of storage battery E, triode Q
1Grounded emitter, voltage-stabiliser tube DZ
1Positive pole succeed electrical equipment J
1Normally opened contact, voltage-stabiliser tube DZ
1Negative pole meet voltage-stabiliser tube DZ
2With resistance R
3Between node.
Another characteristics of the present invention are: described under-voltage protecting circuit is that power positive end is through relay J
2Normally-closed contact J
2-1Meet voltage-stabiliser tube DZ
4Positive terminal, voltage-stabiliser tube DZ
4Negative pole end through resistance R
6Meet triode Q
3Base stage, triode Q
3Grounded emitter, resistance R
5, capacitor C
1Be series at the two ends of power supply, resistance R
5With capacitor C
1Node connect triode Q
3Collector electrode, this node also connects triode Q
2Base stage; Triode Q
2Collector electrode through relay J
2Connect positive source; Relay J
2Normally opened contact and voltage-stabiliser tube DZ
4Negative pole end between be serially connected with a voltage-stabiliser tube DZ
3
Another characteristics of the present invention are: described overvoltage crowbar is that positive source is through voltage-stabiliser tube ZD
6, resistance R
13After meet triode T
5Base stage, triode T
5Grounded emitter, resistance R
12, R
11Series connection back one termination power positive pole, another termination triode T
4Base stage, triode T
4Grounded collector, triode T
4Emitter through resistance R
9After meet triode T
2Base stage, triode T
2Grounded emitter, triode T
2Collector electrode through relay J
3After connect positive source; The primary coil centre cap of transformer T is through relay J among the inverter circuit N
3Normally opened contact J
3-1After connect positive source.
The present invention has following advantage and effect: 1, this power supply is divided into DC control and output, ac converter and output.Wherein direct current component adopts voltage-stabiliser tube tandem switching circuit.Its advantage is simple in structure clear, and the index debugging easily.The little fault of reliable operation, not having in the former various controllers has this mode of employing.2, solar panel,, carries out large current charge to battery cell voltage is raise at short notice fast, and influence battery life in the time of can preventing that solar irradiation is strong through constant-current circuit battery charge, helps the protection of storage battery.3, in circuit, designed overvoltage heavy duty protective circuit.Simultaneously, the present invention also has advantages such as maintenance is easy, with low cost, easy use.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the specific embodiment of the present invention structural representation
Embodiment
As Fig. 1, this power supply comprises solar panel S, storage battery E, inverter circuit N; Between the input of the output of solar panel S and storage battery E, be connected with a constant current charge circuit; In charge circuit, be connected with an additives for overcharge protection circuit; Dc output end at storage battery E is connected with a under-voltage protecting circuit; Between the input of the output of storage battery E and inverter circuit N, be connected with an overvoltage crowbar.
As Fig. 2, the constant current charge circuit is by triode Q
4, Q
5, variable resistor W, resistance R
8, voltage-stabiliser tube ZD
5, relay J
1Form.Solar cell S is by charging current table and triode Q
4, variable resistor W is to storage battery E charging, and is strong as illumination, when charging current increases, variable resistor W go up pressure drop ↑, A point current potential ↓, owing to voltage-stabiliser tube ZD
5Effect, B point current potential is stable, so triode Q
5I
C↓ cause triode Q
5U
CCurrent potential ↑, triode Q
4I
C↓, variable resistor W go up pressure drop ↓, A point current potential ↑, make charging current ↓, vice versa, reaches the constant current charge purpose.
The additives for overcharge protection circuit is by voltage-stabiliser tube DZ
2, DZ
1, resistance R
3, triode Q
1, relay J
1Form.When storage battery E voltage just often, voltage-stabiliser tube DZ
2Shutoff → triode Q
1By → relay J
1Motionless, keep charging; When storage battery E voltage is increased to when overcharging some voltage-stabiliser tube DZ
2Open → triode Q
1Conducting → relay J
1Inhale and move, the solar cell input is cut off.This moment voltage-stabiliser tube DZ
1Be access in power circuit, but because DZ
1Voltage stabilizing value＜DZ
2, triode Q
1Still keep conducting, charging system keeps overcharging state, does not use but do not influence load.When storage battery E drops to when overcharging recovery point voltage-stabiliser tube DZ because of can not get charging voltage
1Shutoff → triode Q
1End relay J
1Discharge, solar panel S is reclosed to charge to storage battery E.
Under-voltage protecting circuit is by voltage-stabiliser tube DZ
4, DZ
3, triode Q
2, Q
3, resistance R
4, R
5, R
6, capacitor C
1, relay J
2, buzzer f, under-voltage indicator light LED
1Form.When storage battery E voltage is lower than at under-voltage, voltage-stabiliser tube DZ
4Shutoff → triode Q
3By → triode Q
2Conducting → relay J
2Inhale and move under-voltage indicator light LED
1Bright, buzzer f rings, at this moment voltage-stabiliser tube DZ
3Be switched on power supply, but because DZ
3Voltage stabilizing value＞DZ
4, triode Q
3Can conducting.When storage battery E voltage rises to under-voltage recovery value owing to charging, voltage-stabiliser tube DZ
4Conducting → triode Q
3Conducting → triode Q
4End relay J
2Discharge, circuit returns to normal operating conditions.
Overvoltage crowbar is by triode T
2, T
4, T
5, relay J
3, J
4, voltage-stabiliser tube ZD
6, resistance R
9, R
10, R
11, R
12, R
13, capacitor C
2, C
3, diode D
2Form.Voltage rises so high owing to overcharge as storage battery E; and overvoltage crowbar has fault or can not in time provide the protection load heavier because of the differences such as discreteness, ambient temperature, humidity or height above sea level of element characteristic the time; can cause inverter circuit power tube IRFP064 to burn; for this reason, designed by triode T
4, T
5, voltage-stabiliser tube ZD
6Protective circuit for core.When cell voltage＞15V, ZD
6Conducting → T
5Conducting → T
4Conducting, T
4U
eCurrent potential ↓, make T
2End J
3, J
4Discharge, inverter circuit N quits work.
Inverter circuit N (living part by frame of broken lines among the figure) inverter circuit adopts LM324, CD4011 and three integrated circuits of KA3525 to form, the distortion square-wave inverter, its principle is known by the professional, also is widely used circuit in the industry, repeats no more herein.T among the figure
1, T
3Be its power tube, adopt IRFP064; T is an output transformer.
Among the figure, A is the charging current table; V is the VD table; 7809 is the three-terminal voltage-stabilizing IOB; K1Be the direct current output switch; K2For exchanging output switch; R2Be current-limiting resistance.
Claims (5)
1, solar energy inverter comprises solar panel (S), storage battery (E), inverter circuit (N), it is characterized in that: be connected with a constant current charge circuit between the input of the output of solar panel (S) and storage battery (E); In charge circuit, be connected with an additives for overcharge protection circuit; Dc output end at storage battery (E) is connected with a under-voltage protecting circuit; Between the input of the output of storage battery (E) and inverter circuit (N), be connected with an overvoltage crowbar.
2, solar energy inverter as claimed in claim 1 is characterized in that: described constant current charge circuit is that the positive terminal of solar panel (S) connects triode (Q
4) emitter, triode (Q
4) collector electrode connect an end of variable resistor (W), the other end of variable resistor (W) is through relay (J
1) normally-closed contact (J
1-1) connect the positive terminal of storage battery (E), the sliding end of another termination variable resistor (W) of variable resistor (W); Triode (Q
4) base stage connect triode (Q
5) collector electrode, triode (Q
4) collector electrode through voltage-stabiliser tube (ZD
5), resistance (R
8) back ground connection, triode (Q
5) emitter meets voltage-stabiliser tube (ZD
5) and resistance (R
8) between node, triode (Q
5) base stage connect the other end of variable resistor (W).
3, solar energy inverter as claimed in claim 1 is characterized in that: described additives for overcharge protection circuit is positive source termination voltage-stabiliser tube (DZ
2), resistance (R
3) after meet triode (Q
1) base stage, triode (Q
1) collector electrode through relay (J
1) after connect the positive pole of storage battery (E), triode (Q
1) grounded emitter, voltage-stabiliser tube (DZ
1) positive pole succeed electrical equipment (J
1) normally opened contact, voltage-stabiliser tube (DZ
1) negative pole meet voltage-stabiliser tube (DZ
2) and resistance (R
3) between node.
4, solar energy inverter as claimed in claim 1 is characterized in that: described under-voltage protecting circuit is that power positive end is through relay (J
2) normally-closed contact (J
2-1) meet voltage-stabiliser tube (DZ
4) positive terminal, voltage-stabiliser tube (DZ
4) negative pole end through resistance (R
6) meet triode (Q
3) base stage, triode (Q
3) grounded emitter, resistance (R
5), capacitor (C
1) be series at the two ends of power supply, resistance (R
5) and capacitor (C
1) node connect triode (Q
3) collector electrode, this node also connects triode (Q
2) base stage; Triode (Q
2) collector electrode through relay (J
2) connect positive source; Relay (J
2) normally opened contact and voltage-stabiliser tube (DZ
4) negative pole end between be serially connected with a voltage-stabiliser tube (DZ
3).
5, solar energy inverter as claimed in claim 1 is characterized in that: described overvoltage crowbar is that positive source is through voltage-stabiliser tube (ZD
6), resistance (R
13) after meet triode (T
5) base stage, triode (T
5) grounded emitter, resistance (R
12), (R
11) series connection back one termination power positive pole, another termination triode (T
4) base stage, triode (T
4) grounded collector, triode (T
4) emitter through resistance (R
9) after meet triode (T
2) base stage, triode (T
2) grounded emitter, triode (T
2) collector electrode through relay (J
3) after connect positive source; The primary coil centre cap of transformer (T) is through relay (J in the inverter circuit (N)
3) normally opened contact (J
3-1) after connect positive source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200085828U CN201174603Y (en) | 2008-03-21 | 2008-03-21 | Solar inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200085828U CN201174603Y (en) | 2008-03-21 | 2008-03-21 | Solar inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174603Y true CN201174603Y (en) | 2008-12-31 |
Family
ID=40201731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200085828U Expired - Fee Related CN201174603Y (en) | 2008-03-21 | 2008-03-21 | Solar inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201174603Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186457A (en) * | 2014-08-29 | 2014-12-10 | 广西宾阳县荣良新材料科技有限公司 | Animal driving device based on solar energy |
| CZ307763B6 (en) * | 2017-10-17 | 2019-04-17 | KIWA s.k., s.r.o. | Overvoltage protection for public LED lighting fixtures |
-
2008
- 2008-03-21 CN CNU2008200085828U patent/CN201174603Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186457A (en) * | 2014-08-29 | 2014-12-10 | 广西宾阳县荣良新材料科技有限公司 | Animal driving device based on solar energy |
| CZ307763B6 (en) * | 2017-10-17 | 2019-04-17 | KIWA s.k., s.r.o. | Overvoltage protection for public LED lighting fixtures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Konca Solar Cell Co., Ltd. Assignor: Yang Zhigang Contract fulfillment period: 2009.11.5 to 2015.11.4 Contract record no.: 2009320001747 Denomination of utility model: Solar inverter power supply Granted publication date: 20081231 License type: Exclusive license Record date: 20091123 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.5 TO 2015.11.4; CHANGE OF CONTRACT Name of requester: KONCA SOLAR ENERGY CO., LTD. Effective date: 20091123 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Konca Solar Cell Co., Ltd. Assignor: Yang Zhigang Contract record no.: 2009320001747 Date of cancellation: 20100629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |