CN209844625U - Output regulation and control circuit and charger - Google Patents
Output regulation and control circuit and charger Download PDFInfo
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- CN209844625U CN209844625U CN201920554479.1U CN201920554479U CN209844625U CN 209844625 U CN209844625 U CN 209844625U CN 201920554479 U CN201920554479 U CN 201920554479U CN 209844625 U CN209844625 U CN 209844625U
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to an output regulation and control circuit, which is connected with the output end of a charger, wherein the charger is used for charging a storage battery. The output regulation and control circuit comprises a battery, a negative pole circuit and a double-contact direct current contactor. The negative electrode of the battery is electrically connected with the negative electrode of the charger; one end of the negative electrode circuit is connected with the positive electrode of the battery, and the other end of the negative electrode circuit outputs current and voltage; the double-contact direct current contactor comprises a normally closed contact and a normally open contact, and the normally closed contact is connected with the negative electrode of the charger; the normally open contact is connected with the positive electrode of the battery and connected with the output end of the negative electrode circuit. The application also provides a charger, which comprises the output regulation and control circuit. The output regulation and control circuit and the charger provided by the application can solve the problem that the charger cannot protect the storage battery on line in the traditional scheme.
Description
Technical Field
The application relates to the technical field of chargers, in particular to an output regulating and controlling circuit and a charger.
Background
At present, storage batteries are used as a backup power supply system in a large amount for an operating power supply, a communication power supply, a machine room uninterruptible power supply and the like of a power system transformer substation. The storage battery as a backup power source needs to be periodically maintained by activation charging and discharging, a nuclear capacity, and the like.
In the traditional scheme, a storage battery pack is separated from a charger and a direct-current power supply system bus in the nuclear capacity discharge process, so that the charger is prevented from supplementing electricity in the nuclear capacity process, and capacity statistics is prevented from being interfered, so that accurate complete nuclear capacity discharge capacity is obtained.
Therefore, in the traditional scheme, pole-end accidents such as open circuit and the like are easy to occur in the storage battery nuclear capacity process. However, at the moment, the charger is separated from the storage battery, so that the storage battery cannot be protected on line, and the problem of unsafe nuclear capacity discharge process of the storage battery is caused.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an output regulation and control circuit and a charger for solving the problem that the conventional charger cannot protect the storage battery on line.
An output regulation and control circuit is connected with the output end of a charger, the charger is used for charging a storage battery, and the output regulation and control circuit comprises:
the negative electrode of the battery is electrically connected with the negative electrode of the charger;
one end of the negative electrode circuit is connected with the positive electrode of the battery, and the other end of the negative electrode circuit outputs current and voltage;
the double-contact direct current contactor comprises a normally closed contact and a normally open contact, and the normally closed contact is connected with the negative electrode of the charger;
the normally open contact is connected with the positive electrode of the battery and connected with the output end of the negative electrode circuit.
The application provides output regulation and control circuit, including battery, negative pole circuit and double contact direct current contactor. The normally closed contact is connected with the positive electrode of the battery and connected with the output end of the negative electrode circuit. The normally open contact is connected with the positive electrode of the battery and connected with the output end of the negative electrode circuit. The negative pole of the battery is electrically connected with the negative pole of the charger, when the circuit between the charger and the battery is conducted, the battery can provide counter potential for the charger, and therefore the output voltage of the charger after passing through the battery is reduced. And under the normal working state of the storage battery, the normally closed contact is in a closed state, and the charger supplies power to the storage battery normally. When the nuclear capacity of the storage battery is discharged, a worker can close the normally open contact and simultaneously open the normally closed contact. At the moment, the current at the output end of the charger passes through the anode of the battery and reaches the output end of the cathode line. When the output voltage of the charger is less than the voltage of the storage battery, the charger does not charge the storage battery any more, and the charger does not influence the nuclear capacity discharge of the storage battery at the moment.
A charger comprises the charger output adjusting circuit.
In one embodiment, the dual-contact dc contactor further includes:
the driving coil is used for driving the normally closed contact to be opened and driving the normally open contact to be closed.
In one embodiment, the output regulation circuit further includes:
and the controller is electrically connected with the driving coil and is in signal connection with the driving coil and used for controlling the driving coil to work.
In one embodiment, the controller comprises:
the data transmission interface is used for acquiring a control command;
the processor is in signal connection with the data transmission interface and is used for controlling the driving coil according to a control command;
and the power supply circuit is electrically connected with the storage battery and the processor to supply power to the processor.
In one embodiment, the processor comprises a central processing unit electrically and signal-connected to the data transmission interface.
In one embodiment, the output regulation circuit further includes:
one end of the information collector is connected with the storage battery and the bus, and the other end of the information collector is electrically connected with the processor and is in signal connection with the processor;
and the storage device is electrically connected and in signal connection with the processor.
In one embodiment, the information collector includes:
the voltage signal sampling circuit is electrically connected with the bus, the storage battery and the processor and is in signal connection with the processor, and the voltage signal sampling circuit is used for acquiring voltage information of the bus and the storage battery;
and the current signal sampling circuit is electrically connected with the bus, the storage battery and the processor and is in signal connection with the processor, and the current signal sampling circuit is used for acquiring current information of the bus and the storage battery.
In one embodiment, the storage device is a memory.
In one embodiment, the data transmission interface includes:
the information receiving interface comprises a network port and is used for receiving a control command;
the information sending interface comprises an RS232 or RS485 serial communication conversion interface and a CAN communication interface, and is used for sending an adjusting command to the charger.
A charger comprises the charger output adjusting circuit.
Drawings
Fig. 1 is a schematic diagram of a charger output adjustment circuit according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a charger output adjustment circuit according to another embodiment of the present application.
Fig. 3 is a schematic structural diagram of a controller according to an embodiment of the present application.
Description of reference numerals:
output regulation circuit 10
Battery 100
Negative electrode line 200
Double-contact DC contactor 300
Normally closed contact 310
Normally open contact 320
Driving coil 330
Controller 400
Data transmission interface 410
Information receiving interface 411
Network port 412
Information transmission interface 413
Processor 420
Power supply circuit 430
Information collector 500
Voltage signal sampling circuit 510
Current signal sampling circuit 520
Storage device 600
Detailed Description
In the traditional scheme, a charger of the storage battery cannot perform online protection on the storage battery. Based on this, this application provides an output regulation and control circuit and machine that charges.
In order to make the purpose, technical solution and advantages of the present application more clearly understood, the following embodiments are taken in conjunction with the accompanying drawings to further describe the output regulation and control circuit and the charger in detail. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of the present application provides an output regulation circuit 10, which is connected to an output terminal of a charger, where the charger is used for charging a storage battery. The output regulation circuit 10 includes a battery 100, a negative line 200, and a dual-contact dc contactor 300.
The negative electrode of the battery 100 is electrically connected to the negative electrode of the charger. The battery 100 is connected to a bus bar. The specification of the battery 100 may be selected according to the specification of a charger, and in one embodiment, the rated voltage of the charger is 102V-124V, and the voltage of the battery 100 increases as the rated voltage of the charger increases. The battery 100 should reduce the output voltage of the charger to at most 102V. For example, when the rated voltage of the charger is 111V, the voltage of the battery 100 should be at least 9V. When the rated voltage of the charger is 124V, and the rated voltage of the charger is 124V, the voltage of the battery 100 should be at least 22V. In one embodiment, the battery 100 is a storage battery, but the application does not specifically limit the kind of the battery 100, and the battery can be selected according to actual needs.
One end of the negative line 200 is connected to the positive electrode of the battery 100, and the other end outputs current and voltage. The negative line 200 may be a cable or a wire, as long as the transmission of the electrical signal can be achieved, and may be specifically selected according to actual needs, which is not limited in this application.
The double-contact direct current contactor 300 comprises a normally closed contact 310 and a normally open contact 320, wherein the normally closed contact 310 is connected with the negative electrode of the charger. The normally open contact 320 is connected to the positive terminal of the battery 100 and to the output terminal of the negative line 200. When the storage battery is normally powered, that is, the charger is normally powered by the storage battery, the normally closed contact 310 is closed, and the normally open contact 320 is opened. The charger can directly charge the storage battery without passing through the battery 100, and the output voltage of the charger cannot be changed. During the process of the capacity discharge of the battery, the staff member can close the normally open contact 320 and open the normally closed contact 310 at the same time. At this time, the current output from the charger passes through the battery 100 and the normally open contact 320 that has been closed in sequence. The current output from the charger is transmitted on the negative electrode line 200, and then reaches the connection point of the negative electrode line 200 and the storage battery, and is transmitted to the storage battery. Due to the counter-potential of the battery 100, the voltage received by the accumulator is now lower than the voltage of the accumulator itself, which is no longer charged. Therefore, the worker can carry out the nuclear capacity discharge operation on the storage battery without disconnecting the electric connection between the storage battery and the charger.
The output regulation circuit 10 provided in this embodiment includes the battery 100, the negative line 200, and the dual-contact dc contactor 300. The normally closed contact 310 is connected to the positive terminal of the battery 100 and to the output terminal of the negative line 200. The normally open contact 320 is connected to the positive terminal of the battery 100 and to the output terminal of the negative line 200. The negative electrode of the battery 100 is electrically connected with the negative electrode of the charger, and when the circuit between the charger and the battery 100 is conducted, the battery 100 can provide counter potential for the charger, so that the output voltage of the charger passing through the battery is reduced. Under the normal working state of the storage battery, the normally closed contact 310 is in a closed state, and the charger supplies power to the storage battery normally. During the discharge of the battery capacity, the operator may close the normally open contact 320 and open the normally closed contact 310. At this time, the current at the output terminal of the charger passes through the positive electrode of the battery 100 and reaches the output terminal of the negative electrode line 200. When the output voltage of the charger is less than the voltage of the storage battery, the charger does not charge the storage battery any more, and the charger does not influence the nuclear capacity discharge of the storage battery at the moment.
In one embodiment of the present application, the dual-contact dc contactor 300 further includes a driving coil 330. The driving coil 330 is used for driving the normally closed contact 310 to open and driving the normally open contact 320 to close. The operator may use other devices to drive the drive coil 300 to open the normally closed contact 310 and close the normally open contact 320. The type of the driving coil 330 can be selected according to actual needs, as long as the normally closed contact 310 can be driven to open and the normally open contact 320 can be closed.
Referring to fig. 1 to 3, in an embodiment of the present application, the output regulation circuit 10 further includes a controller 400, and the controller 400 is electrically and signal-connected to the driving coil 330 and is configured to control the driving coil 330 to operate. The controller 400 may be a combination of a central processing unit and a control circuit, or a manually controlled control circuit, and may be specifically selected according to actual needs, which is not limited in this application. In one embodiment, the controller 400 includes a data transmission interface 410, a processor 420, and a power supply circuit 430.
The data transmission interface 410 is configured to obtain a control command, where the control command is sent by a terminal. The data transmission interface 410 may be a bluetooth interface, or a 485 communication interface, or other data interfaces. The data transmission interface 410 may be specifically selected according to actual needs, and the present application is not limited as long as the control command can be obtained.
The processor 420 is in signal connection with the data transmission interface 410 to control the driving coil 330 according to a control command. The processor 420 may be a central processing unit, a single chip, or a digital signal processor, and may be specifically selected according to actual needs, which is not limited in this application. In one embodiment, the processor 420 includes a central processor electrically and signally connected to the data transmission interface 410. In one embodiment, the model of the central processor may be an ARM7 processor developed by national science and technology. The processor 420 receives a control command of the terminal through the data transmission interface 410, and controls the driving coil 330 to operate according to the control command. For example, when the terminal transmits a command for discharging the capacity of the battery, the processor 420 controls the driving coil 330 to operate. At this time, the normally open contact 320 is closed and the normally closed contact 310 is opened. The voltage value received by the storage battery from the charger becomes small, so that the storage battery cannot obtain electric energy from the charger.
The power supply circuit 430 is electrically connected to the battery and the processor 420 to supply power to the processor 420. The power supply circuit 430 takes power from a direct-current positive and negative bus of the storage battery, the output voltage of the storage battery is 110V, and the output voltage is transmitted to the processor 420 through the power supply circuit 430. The power supply circuit 430 may be provided with a voltage boost circuit or a voltage drop circuit, which may be specifically selected according to actual needs, and the present application is not limited.
In one embodiment of the present application, the output regulation circuit 10 further includes an information collector 500 and a storage device 600.
One end of the information collector 500 is connected to the storage battery and the bus, and the other end is electrically connected and signal-connected to the processor 420. In one embodiment, the information collector 500 includes a voltage signal sampling circuit 510 and a current signal sampling circuit 520. The voltage signal sampling circuit 510 is electrically connected to the bus and the battery, and is electrically and signally connected to the processor 420. The voltage signal sampling circuit 510 is used for acquiring voltage information of the bus and the storage battery. The current signal sampling circuit 520 is electrically connected to the bus and the battery, and is electrically and signally connected to the processor 420. The current signal sampling circuit 520 is used for acquiring current information of the bus and the storage battery.
It should be noted that, after the processor 420 receives the control command of the storage battery capacity discharge, the storage battery and the bus voltage and current need to be analyzed, and if the operating condition is met, the processor 420 controls the driving coil 330 to operate. The satisfaction of the operating conditions means that the voltage and current of the storage battery and the bus reach specified standards. If the voltage and current of the storage battery and the bus bar do not meet the specified standards, the processor 420 sends a signal similar to that incapable of continuing the operation to the terminal through the data transmission interface 410.
The memory device 600 is electrically and signally connected to the processor 420. The storage device 600 may be an external memory, a memory chip, or an internal memory, which may be specifically selected according to actual needs, and the present application is not limited thereto. In one embodiment, the storage device 600 is a memory. In one embodiment, the storage device 600 employs at least 16M of off-chip memory as data cache space.
In one embodiment of the present application, the data transmission interface 410 includes an information receiving interface 411 and an information sending interface 413.
The information receiving interface 411 includes a network interface 412, and the information receiving interface 411 is used for receiving a control command. In addition, the information receiving interface 411 further includes a wireless communication module. In one embodiment, the network port 412 is a network card and an ethernet port.
The information sending interface 413 comprises an RS232 or RS485 serial communication conversion interface and also comprises a CAN communication interface. The information sending interface 413 is configured to send an adjustment command to the charger. The RS232 or RS485 serial communication conversion interface and the CAN communication module interface are connected with corresponding interfaces of the charger, and data communication between the processor 420 and the charger is realized according to a data communication interface protocol specified by the charger, so that the purpose of output control of the charger is achieved.
In an embodiment of the present application, the present application further provides a charger, which includes the output regulation and control circuit 10 described above. The charger can adjust the output voltage by itself, so that when the storage battery needs to be discharged by the nuclear capacity, the output voltage of the charger is smaller than that of the storage battery.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an output regulation and control circuit, is connected with the output that charges the machine, the machine that charges is used for charging for the battery, its characterized in that includes:
the negative pole of the battery (100) is electrically connected with the negative pole of the charger;
a negative electrode line (200) having one end connected to the positive electrode of the battery (100) and the other end outputting current and voltage;
the double-contact direct current contactor (300) comprises a normally closed contact (310) and a normally open contact (320), wherein the normally closed contact (310) is connected with the negative electrode of a charger; and the number of the first and second electrodes,
the normally open contact (320) is connected with the positive electrode of the battery (100) and connected with the output end of the negative electrode circuit (200).
2. The output regulation circuit of claim 1 wherein the dual-contact dc contactor (300) further comprises:
a drive coil (330), the drive coil (330) being used for driving the normally closed contact (310) to be opened and driving the normally open contact (320) to be closed.
3. The output regulation circuit of claim 2 further comprising:
and the controller (400) is electrically connected and in signal connection with the driving coil (330) and is used for controlling the operation of the driving coil (330).
4. The output regulation circuit of claim 3, wherein the controller (400) comprises:
a data transmission interface (410) for obtaining a control command;
a processor (420) in signal connection with the data transmission interface (410) to control the drive coil (330) in accordance with a control command;
a power supply circuit (430) electrically connected to the battery and the processor (420) to supply power to the processor (420).
5. The output regulation circuit of claim 4 wherein the processor (420) comprises a central processing unit electrically and signal connected to the data transmission interface (410).
6. The output regulation circuit of claim 4 further comprising:
one end of the information collector (500) is connected with the storage battery and the bus, and the other end of the information collector is electrically connected with the processor (420) and is in signal connection with the processor;
a memory device (600) electrically and signally connected to the processor (420).
7. The output regulation circuit of claim 6, wherein the information collector (500) comprises:
the voltage signal sampling circuit (510) is electrically connected and in signal connection with the bus, the storage battery and the processor (420), and the voltage signal sampling circuit (510) is used for acquiring voltage information of the bus and the storage battery;
and the current signal sampling circuit (520) is electrically connected and in signal connection with the bus, the storage battery and the processor (420), and the current signal sampling circuit (520) is used for acquiring current information of the bus and the storage battery.
8. The output regulation circuit of claim 6 wherein the storage device (600) is a memory.
9. The output regulation circuit of claim 4 wherein the data transmission interface (410) comprises:
an information receiving interface (411) comprising a network port (412) for receiving a control command;
the information sending interface (413) comprises an RS232 or RS485 serial communication conversion interface and a CAN communication interface, and the information sending interface (413) is used for sending an adjusting command to the charger.
10. A charger characterized in that it comprises an output regulation circuit according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920554479.1U CN209844625U (en) | 2019-04-23 | 2019-04-23 | Output regulation and control circuit and charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920554479.1U CN209844625U (en) | 2019-04-23 | 2019-04-23 | Output regulation and control circuit and charger |
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| CN209844625U true CN209844625U (en) | 2019-12-24 |
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| CN201920554479.1U Active CN209844625U (en) | 2019-04-23 | 2019-04-23 | Output regulation and control circuit and charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921500A (en) * | 2019-04-23 | 2019-06-21 | 深圳供电局有限公司 | Output regulation and control circuit and charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921500A (en) * | 2019-04-23 | 2019-06-21 | 深圳供电局有限公司 | Output regulation and control circuit and charger |
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