CN203813473U - Photocell intelligent charge/discharge device - Google Patents
Photocell intelligent charge/discharge device Download PDFInfo
- Publication number
- CN203813473U CN203813473U CN201420145124.4U CN201420145124U CN203813473U CN 203813473 U CN203813473 U CN 203813473U CN 201420145124 U CN201420145124 U CN 201420145124U CN 203813473 U CN203813473 U CN 203813473U
- Authority
- CN
- China
- Prior art keywords
- storage battery
- triode
- charging
- circuit
- photocell
- 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
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a photocell intelligent charge/discharge device. The device comprises a charge circuit, an overcharge protection circuit, and an overcharge limiting circuit; wherein the charge circuit is serially connected between a solar cell panel and a battery so as to charge the battery by the solar cell panel; the overcharge protection circuit is connected to the charge circuit and the battery, and the overcharge limiting circuit is connected to the battery. The photocell intelligent charge/discharge device has the following advantages: (1) the excess solar cell energy can be discharged to ensure that the battery be charged under a proper voltage; (2) the battery overcharging is prevented, and when the battery discharging is broken off, a spare 12V direct current power source is used to discharge. The photocell intelligent charge/discharge device has the advantages of simple structure, low cost, and excellent protective effect.
Description
Technical field
The utility model belongs to technical field of solar batteries, is specifically related to a kind of photocell intelligent recharge and discharge device.
Background technology
Solar panel converts light to direct current energy by photovoltaic effect and exports, but the output of this direct current energy can not directly charge to storage battery, need to storage battery, charge via a charging circuit.Owing to overcharging, all can cause permanent damage to storage battery with overdischarge, therefore, need to prevent that storage battery from overcharging and overdischarge.Prior art is all for the self structure of charging circuit, slightly to improve to realize the function of anti-overcharge electricity and anti-overdischarge; but poor effect, is necessary to design a kind of special anti-overcharge electric protection circuit and anti-over circuit and provides further protection to storage battery.
Utility model content
In order to overcome the defect existing in prior art, the utility model provides a kind of photocell intelligent recharge and discharge device, can effectively prevent overcharging and overdischarge of storage battery.Concrete technical scheme is as follows:
A kind of photocell intelligent recharge and discharge device comprises: charging circuit, overcharge protection circuit and restriction overdischarge circuit; Wherein, charging circuit is connected between solar panel and storage battery, for realizing solar panel to charge in batteries; Overcharge protection circuit is connected with storage battery with charging circuit respectively, and restriction overdischarge circuit is connected with storage battery;
Charging circuit comprises pulse signal unit, charging switching element and the charhing unit connecting successively, and pulse signal unit is connected with solar panel respectively with charging switching element, and charhing unit is connected with storage battery;
Overcharge protection circuit comprises charging voltage sampling unit, charging voltage comparing unit and the switch element that overcharges connecting successively, and charging voltage sampling unit, charging voltage comparing unit and the switch element that overcharges are connected with storage battery respectively;
Restriction overdischarge circuit comprises discharge voltage comparing unit, overdischarge switch element and the relay connecting successively, and discharge voltage comparing unit is connected with storage battery respectively with relay, and the break-make of relay determines whether storage battery discharges.
As prioritization scheme, pulse signal unit comprises the first operational amplifier, and charging switching element comprises the first triode, and charhing unit comprises charging inductance; The first operational amplifier, for output pulse signal, is controlled the uninterrupted conducting of the first triode; The first triode is used for controlling charging inductance uninterruptedly to charge in batteries.
As prioritization scheme, charging voltage sampling unit comprises a slide rheostat, and charging voltage comparing unit comprises the second operational amplifier, and the switch element that overcharges comprises the second triode; Slide rheostat is for sampling to charging voltage; The second operational amplifier, for comparing charging voltage, is controlled the break-make of the second triode; The second triode is for controlling the output of the first operational amplifier.
As prioritization scheme, discharge voltage comparing unit comprises the 3rd operational amplifier, and overdischarge switch element comprises the 3rd triode; The coil of relay is connected between the positive pole of storage battery and the collector electrode of the 3rd triode, and relay comprises a pair of normally-closed contact, and normally-closed contact is connected between the positive pole of storage battery and the positive pole of another piece battery; The 3rd operational amplifier, for comparing discharge voltage, is controlled the break-make of the 3rd triode; The break-make of the 3rd triode determines the break-make of the normally-closed contact of relay.
As prioritization scheme, relay also comprises a pair of normally opened contact, and normally opened contact is connected between the positive pole of another piece battery and the DC power supply of 12V.
As prioritization scheme, charhing unit also comprises a Schottky diode, and Schottky diode is connected between charging inductance and storage battery.
Compared with prior art, the utlity model has following beneficial effect:
(1) designed special-purpose overcharge protection circuit, unnecessary solar cell energy can have been released, guaranteed that there is no too high voltage is charge in batteries;
(2) design special-purpose restriction overdischarge circuit, can prevent the overdischarge of storage battery; When disconnecting the electric discharge of storage battery, change by standby 12V DC power supply and discharge;
(3) the utility model is simple in structure, with low cost, and protection effect is good.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the circuit theory diagrams of charging circuit;
Fig. 3 is the circuit theory diagrams of overcharge protection circuit;
Fig. 4 is the circuit theory diagrams of restriction overdischarge circuit.
In upper figure, sequence number is: 1-charging circuit, 2-overcharge protection circuit, 3-restriction overdischarge circuit, 4-solar panel, 5-storage battery.
Embodiment
Below in conjunction with accompanying drawing, in the mode of embodiment, describe the utility model in detail.
Embodiment 1:
As shown in Figure 1, a kind of photocell intelligent recharge and discharge device, comprises charging circuit 1, overcharge protection circuit 2 and restriction overdischarge circuit 3; Wherein, charging circuit 1 is connected between solar panel 4 and storage battery 5, for realizing solar panel 4 to storage battery 5 chargings; Overcharge protection circuit 2 is connected with storage battery 5 with charging circuit 1 respectively, and restriction overdischarge circuit 3 is connected with storage battery 5.
Charging circuit 1 comprises pulse signal unit, charging switching element and the charhing unit connecting successively, and pulse signal unit is connected with solar panel 4 respectively with charging switching element, and charhing unit is connected with storage battery 5.As shown in Figure 2, in the present embodiment, pulse signal unit comprises the first operational amplifier (corresponding to the IC1A in Fig. 2), and charging switching element comprises the first triode (corresponding to the T1 in Fig. 2), and charhing unit comprises charging inductance (corresponding to the L1 in Fig. 2).The in-phase input end access solar panel 4(of the first operational amplifier IC1A is corresponding to the P1 in Fig. 2), the reverse inter-input-ing ending grounding of the first operational amplifier IC1A; The first operational amplifier IC1A output pulse signal is to the base stage of the first triode T1.The emitter of the first triode T1 is connected with solar panel 4 P1, and the collector electrode of the first triode T1 is connected with one end of charging inductance L1, the other end of charging inductance L1 with storage battery 5(corresponding to the P2 in Fig. 2) positive pole be connected; Pulse signal is controlled the uninterrupted conducting of the first triode T1, and the uninterrupted conducting of the first triode T1 is controlled charging inductance L1 uninterruptedly to storage battery 5 P2 chargings.In this enforcement, the Schottky diode D2 that connected between the positive pole of charging inductance L1 and storage battery 5 P2, this Schottky diode D2 is used for preventing reverse charge; With respect to using general-purpose diode, the pressure drop ratio of Schottky diode is lower, prevents reverse charge better effects if; In addition, also Schottky diode D2 can be replaced with to triode, the pressure drop ratio of triode is lower, but control circuit can more complicated.More than adopting the technical characterictic of Schottky diode D2 is only a preferably execution mode, can change according to actual conditions, and the utility model does not limit this.
Overcharge protection circuit 2 comprises charging voltage sampling unit, charging voltage comparing unit and the switch element that overcharges connecting successively, and charging voltage sampling unit, charging voltage comparing unit and the switch element that overcharges are connected with storage battery 5 respectively.As shown in Figure 3, in the present embodiment, charging voltage sampling unit comprises a slide rheostat (corresponding to the R5 in Fig. 3), charging voltage comparing unit comprises the second operational amplifier (corresponding to the IC2A in Fig. 3), and the switch element that overcharges comprises the second triode (corresponding to the T4 in Fig. 3); Slide rheostat is used for charging voltage to sample, then the voltage of sampling is sent into the second operational amplifier IC2A; The second operational amplifier IC2A is device as a comparison here, for charging voltage relatively, controls the break-make of the second triode T4; The break-make of the second triode T4 can affect the homophase input of the first operational amplifier IC1A, and then controls the pulse signal of the first operational amplifier IC1A output, prevents the situation of overcharging.
Restriction overdischarge circuit 3 comprises discharge voltage comparing unit, overdischarge switch element and the relay (corresponding to the JD in figure) connecting successively, discharge voltage comparing unit is connected with storage battery 5 respectively with relay J D, and the break-make of relay J D determines whether storage battery 5 discharges.As shown in Figure 4, discharge voltage comparing unit comprises the 3rd operational amplifier (corresponding to the IC3A in Fig. 4), and overdischarge switch element comprises the 3rd triode (corresponding to the T3 in Fig. 4).The coil of relay J D is connected between the positive pole of storage battery 5 and the collector electrode of the 3rd triode T3, and relay J D comprises the contact sets of one group of conversion hysteria, and this contact sets comprises three contacts altogether, and wherein, a contact is moving contact, and other two contacts are fixed contact; Moving contact and the fixed contact normally-closed contact that partners, moving contact and another fixed contact normally opened contact that partners.In the present embodiment, moving contact is connected with the positive pole of another piece battery, and a fixed contact is connected with the positive pole of storage battery 5, and another fixed contact is connected with 12V DC power supply; That is to say, normally-closed contact is connected between the positive pole of storage battery 5 and the positive pole of another piece battery, and normally opened contact is connected between the positive pole of another piece battery and the DC power supply of 12V.The 3rd operational amplifier IC3A plays relatively effect here, controls the break-make of the 3rd triode T3; The break-make of the 3rd triode T3 determines the break-make of the normally-closed contact of relay J D.In storage battery 5 regular picture processes, the 3rd not conducting of triode T3, the coil of relay J D is not switched on, and normally-closed contact is connected storage battery 5 and another piece battery, and storage battery 5 is to another piece battery discharge; When the electric weight of storage battery 5 internal reservoir discharges, the positive terminal voltage of the 3rd operational amplifier IC3A is higher than negative terminal voltage, the 3rd triode T3 conducting, disconnects the normally-closed contact of relay J D, is switched to normally opened contact, storage battery 5 is disconnected, no longer electric discharge, and 12V DC power supply is switched to another piece battery, can prevent the overdischarge of storage battery, can, by the DC power supply of 12V as stand-by power supply, guarantee that power supply is uninterrupted again.In the present embodiment, 12V DC power supply can directly be converted by civil power, only as stand-by power supply.The present embodiment provides a kind of execution mode of the best, but is not limited to this, if do not consider, does not adopt 12V DC power supply as stand-by power supply, only realize anti-overdischarge function, relay J D can adopt two contact relays of closed type, after relay coil energising, disconnects the connection of storage battery.
The utility model does not limit the concrete model of concrete components and parts, can select according to actual needs, is not limited to the components and parts model shown in accompanying drawing.
Disclosed is above only the application's a specific embodiment, but the not limited thereto the changes that any person skilled in the art can think of of the application all should drop in the application's protection range.
Claims (6)
1. a photocell intelligent recharge and discharge device, is characterized in that, comprising: charging circuit, overcharge protection circuit and restriction overdischarge circuit; Wherein, described charging circuit is connected between solar panel and storage battery, for realizing solar panel to charge in batteries; Described overcharge protection circuit is connected with described storage battery with described charging circuit respectively, and described restriction overdischarge circuit is connected with described storage battery;
Described charging circuit comprises pulse signal unit, charging switching element and the charhing unit connecting successively, and described pulse signal unit is connected with described solar panel respectively with described charging switching element, and described charhing unit is connected with described storage battery;
Described overcharge protection circuit comprises successively charging voltage sampling unit, charging voltage comparing unit and the switch element that overcharges connecting, described charging voltage sampling unit, described charging voltage comparing unit and described in the switch element that overcharges be connected with described storage battery respectively;
Described restriction overdischarge circuit comprises discharge voltage comparing unit, overdischarge switch element and the relay connecting successively, described discharge voltage comparing unit is connected with described storage battery respectively with described relay, and the break-make of described relay determines whether described storage battery discharges.
2. a kind of photocell intelligent recharge and discharge device according to claim 1, is characterized in that, described pulse signal unit comprises the first operational amplifier, and described charging switching element comprises the first triode, and described charhing unit comprises charging inductance; Described the first operational amplifier, for output pulse signal, is controlled the uninterrupted conducting of described the first triode; Described the first triode is used for controlling described charging inductance uninterruptedly to described charge in batteries.
3. a kind of photocell intelligent recharge and discharge device according to claim 2, it is characterized in that, described charging voltage sampling unit comprises a slide rheostat, and described charging voltage comparing unit comprises the second operational amplifier, described in the switch element that overcharges comprise the second triode; Described slide rheostat is for sampling to charging voltage; Described the second operational amplifier, for comparing charging voltage, is controlled the break-make of the second triode; Described the second triode is for controlling the output of described the first operational amplifier.
4. a kind of photocell intelligent recharge and discharge device according to claim 3, is characterized in that, described discharge voltage comparing unit comprises the 3rd operational amplifier, and described overdischarge switch element comprises the 3rd triode; The coil of described relay is connected between the positive pole of described storage battery and the collector electrode of described the 3rd triode, and described relay comprises a pair of normally-closed contact, and described normally-closed contact is connected between the positive pole of described storage battery and the positive pole of another piece battery; Described the 3rd operational amplifier, for comparing discharge voltage, is controlled the break-make of the 3rd triode; The break-make of described the 3rd triode determines the break-make of the normally-closed contact of described relay.
5. a kind of photocell intelligent recharge and discharge device according to claim 4, is characterized in that, described relay also comprises a pair of normally opened contact, and described normally opened contact is connected between the positive pole of another piece battery and the DC power supply of 12V.
6. a kind of photocell intelligent recharge and discharge device according to claim 2, is characterized in that, described charhing unit also comprises a Schottky diode, and described Schottky diode is connected between described charging inductance and described storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145124.4U CN203813473U (en) | 2014-03-28 | 2014-03-28 | Photocell intelligent charge/discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145124.4U CN203813473U (en) | 2014-03-28 | 2014-03-28 | Photocell intelligent charge/discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813473U true CN203813473U (en) | 2014-09-03 |
Family
ID=51452181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145124.4U Expired - Fee Related CN203813473U (en) | 2014-03-28 | 2014-03-28 | Photocell intelligent charge/discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813473U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332955A (en) * | 2014-11-19 | 2015-02-04 | 芜湖杰诺瑞汽车电器系统有限公司 | Motor fault monitoring and protection device based on solar energy |
| CN110718945A (en) * | 2018-07-13 | 2020-01-21 | 中车大连电力牵引研发中心有限公司 | Charging and discharging circuit of storage battery |
| CN109818568B (en) * | 2017-11-18 | 2021-05-07 | 丰郅(上海)新能源科技有限公司 | Series connection type turn-off system for photovoltaic module and method for restarting after turn-off |
-
2014
- 2014-03-28 CN CN201420145124.4U patent/CN203813473U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332955A (en) * | 2014-11-19 | 2015-02-04 | 芜湖杰诺瑞汽车电器系统有限公司 | Motor fault monitoring and protection device based on solar energy |
| CN109818568B (en) * | 2017-11-18 | 2021-05-07 | 丰郅(上海)新能源科技有限公司 | Series connection type turn-off system for photovoltaic module and method for restarting after turn-off |
| CN110718945A (en) * | 2018-07-13 | 2020-01-21 | 中车大连电力牵引研发中心有限公司 | Charging and discharging circuit of storage battery |
| CN110718945B (en) * | 2018-07-13 | 2024-03-19 | 中车大连电力牵引研发中心有限公司 | Charge-discharge circuit of storage battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203690977U (en) | Solar charging control system | |
| CN201490745U (en) | Charger | |
| CN103236733A (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN105471055A (en) | Energy storage system for charging electric vehicle | |
| CN205051931U (en) | LED driving power supply | |
| CN203813473U (en) | Photocell intelligent charge/discharge device | |
| CN103368235B (en) | Nickel-metal hydride battery charge-discharge circuit in uninterruptible power supply | |
| CN203689693U (en) | Intelligent networking control system for solar traffic light with dual power supplies | |
| CN203933138U (en) | A kind of new type solar energy bimodulus electric supply installation for WSNs sensor node | |
| CN104734326A (en) | Solar power supply and mains supply complementary usage regulation and control device | |
| CN201504116U (en) | Outdoor communication power source | |
| CN111092471A (en) | Use method of overcharge and overdischarge protection circuit for energy storage battery pack | |
| CN203339947U (en) | Switch circuit and communication power supply | |
| CN203690982U (en) | Networking centralized control system for solar traffic light with dual power supplies | |
| CN202084913U (en) | Automatic switching device for overdischarging of battery in direct current power supply system | |
| CN107154730B (en) | A kind of generation of electricity by new energy two-way changing circuit and control method | |
| CN201499006U (en) | Power supply for on-line monitoring system of transmission line | |
| CN113937859A (en) | Charging and discharging switching device and method for energy storage high-voltage box | |
| CN210577776U (en) | Relay is prevented area and is carried switching drive protection circuit | |
| CN100547877C (en) | The automatic stop function control circuit of positive and negative combined pulse charge machine | |
| CN203398833U (en) | Battery charging/discharging circuit of uninterruptible power supply | |
| CN108808823B (en) | Photovoltaic module self-starting control device and power supply system | |
| CN103259242B (en) | Self-powered switching-on instantaneous protecting device | |
| CN201623513U (en) | Electrical energy distributor circuit and mobile terminal | |
| CN105743188A (en) | Plumbic acid battery pack protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140903 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |