CN112564223A - Charge and discharge control device - Google Patents
Charge and discharge control device Download PDFInfo
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- CN112564223A CN112564223A CN202011418609.2A CN202011418609A CN112564223A CN 112564223 A CN112564223 A CN 112564223A CN 202011418609 A CN202011418609 A CN 202011418609A CN 112564223 A CN112564223 A CN 112564223A
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- 230000005611 electricity Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000004146 energy storage Methods 0.000 description 12
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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Abstract
The application discloses charge-discharge control device relates to battery management technical field. A charge and discharge control device includes: the device comprises a battery module, a first control module, a second control module and a main control module. Specifically, the battery module includes at least one battery module; the first control module is electrically connected with one end of the battery module; the second control module is electrically connected with the other end of the battery module; the first port of the main control module is electrically connected with the battery module, and the main control module is respectively electrically connected with the first control module and the second control module, and is used for controlling the conduction states of the first control module and the second control module and controlling the working state of the charge and discharge control device. By using the charging and discharging control device of the embodiment of the application, the problem that the charging and discharging of the battery module cannot be controlled under the condition that no charging and discharging equipment exists in an external circuit or the external charging and discharging equipment is abnormal in failure is solved.
Description
Technical Field
The application relates to the technical field of battery management, in particular to a charging and discharging control device.
Background
The current charge and discharge control device mainly comprises a battery module and a control box (comprising a fuse and a switch), and cannot meet the scene use under specific conditions. For example, when there is no charging/discharging device in the external line or the external charging/discharging device is abnormal due to failure, the charging/discharging of the battery module cannot be controlled.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the present application provides a charge/discharge control device that can effectively control the charge/discharge of a battery when there is no charge/discharge device in an external line or when there is an abnormality in failure of the external charge/discharge device.
In order to achieve the above object, an embodiment of the present application provides a charge and discharge control device, including:
a battery module including at least one battery module;
the first control module is electrically connected with one end of the battery module;
the second control module is electrically connected with the other end of the battery module;
the main control module is respectively electrically connected with the battery module, the first control module and the second control module, is used for controlling the conduction states of the first control module and the second control module, and is used for controlling the working state of the charging and discharging control device.
In some embodiments, the first control module comprises:
one end of the first diode is electrically connected with one end of the battery module and the first port of the main control module respectively, and the other end of the first diode is electrically connected with the second port of the main control module;
one end of the first switch is electrically connected with one end of the battery module, the first port of the main control module and one end of the first diode respectively, and the other end of the first switch is electrically connected with the other end of the first diode and the second port of the main control module respectively;
one end of the second switch is electrically connected with the other end of the first diode, the other end of the first switch and the second port of the main control module respectively;
one end of the first resistor is electrically connected with one end of the battery module, the first port of the main control module, one end of the first switch and one end of the first diode respectively, and the other end of the first resistor is electrically connected with the other end of the second switch.
In some embodiments, the second control module comprises:
one end of the second diode is electrically connected with the other end of the battery module and the third port of the main control module respectively, and the other end of the second diode is electrically connected with the fourth port of the main control module;
and one end of the third switch is electrically connected with the other end of the battery module, the third port of the master control module and one end of the second diode respectively, and the other end of the third switch is electrically connected with the other end of the second diode and the fourth port of the master control module respectively.
In some embodiments, the first control module further comprises:
the fuse, the one end of fuse respectively with the one end of battery module the first port electricity of host system is connected, the other end of fuse respectively with the one end of first switch the one end of first diode and the one end electricity of first resistance is connected.
In some embodiments, the first control module comprises:
and one end of the fourth switch is electrically connected with one end of the battery module and the first port of the main control module respectively, and the other end of the fourth switch is electrically connected with the second port of the main control module.
In some embodiments, the second control module comprises:
one end of the driving unit is electrically connected with the other end of the battery module and the third port of the main control module respectively, and the other end of the driving unit is electrically connected with the fourth port of the main control module;
one end of the fifth switch is electrically connected with the other end of the driving unit and the fourth port of the main control module respectively;
and one end of the second resistor is electrically connected with the other end of the battery module, the third port of the main control module and one end of the driving unit respectively, and the other end of the second resistor is electrically connected with the other end of the fifth switch.
In some embodiments, the driving unit includes:
one end of the first thyristor is electrically connected with the other end of the battery module, the third end of the main control module and one end of the second resistor respectively, and the other end of the first thyristor is electrically connected with the fourth end of the main control module and one end of the fifth switch respectively;
one end of the second thyristor is electrically connected with the other end of the battery module, the third end of the main control module, one end of the second resistor and one end of the first thyristor respectively, and the other end of the second thyristor is electrically connected with the other end of the first thyristor, the fourth end of the main control module and one end of the fifth switch respectively;
and one end of the driving board is electrically connected with the other end of the second thyristor, and the other end of the driving board is electrically connected with one end of the first thyristor.
In some embodiments, the first control module further comprises:
the fuse, the one end of fuse with battery module's one end electricity is connected, the other end of fuse respectively with the one end of fourth switch the first port electricity of host system is connected.
According to the charge and discharge control device of the embodiment of the application, at least the following beneficial effects are achieved: the charging and discharging of the battery module can be controlled by adding the diode in the main loop and controlling the switch-on and switch-off of the switch through the main control module, or the charging and discharging of the battery module can be controlled by adding the thyristor in the main loop and controlling the switch-on and switch-off of the driving plate and the switch through the main control module. The two modes adopted by the embodiment of the application solve the problem that the charging and discharging of the battery cannot be controlled under the condition that no charging and discharging equipment exists in an external circuit or the external charging and discharging equipment is abnormal in failure.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
fig. 1 is a circuit diagram of a charge and discharge control apparatus in the prior art;
fig. 2 is a block diagram of a charge and discharge control device according to some embodiments of the present disclosure;
fig. 3 is a circuit diagram of a charge and discharge control device according to some embodiments of the present disclosure;
fig. 4 is a circuit diagram of a charge and discharge control device according to another embodiment of the present application;
fig. 5 is a management architecture diagram of an energy storage system employing a charging and discharging control device according to some embodiments of the present application;
fig. 6 is a specification diagram of an energy storage system using the charge and discharge control device according to some embodiments of the present disclosure.
Reference numerals: the battery module 100, the first control module 200, the second control module 300, the main control module 400, the driving unit 310, and the control unit 320.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. 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.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.
The current charge and discharge control device mainly comprises a battery module and a control box (comprising a fuse and a switch), and cannot meet the scene use under specific conditions. For example, when there is no charging/discharging device in the external line or the external charging/discharging device is abnormal due to failure, the charging/discharging of the battery module cannot be controlled.
Referring to fig. 1, a charge and discharge control apparatus in the related art includes a battery module, wherein the battery module includes at least one battery module. The charge and discharge control device in the prior art further includes a control box, and two ends of the control box are respectively connected to two ends of the battery module. The control box includes a fuse FU1 and two switches, wherein one end of the fuse FU1 is electrically connected to one end of the battery module, the other end of the fuse FU1 is electrically connected to the first switch KM1, and one end of the second switch KM2 is electrically connected to one end of the battery module. However, in the external circuit of the charge and discharge control device in the prior art, the charge and discharge of the battery module cannot be controlled under the condition that no charge and discharge equipment exists or the external charge and discharge equipment is abnormal in failure.
Based on this, the embodiment of the present application provides a charge and discharge control device, which can overcome the disadvantages brought by the conventional charge and discharge control circuit, and solve the problem that the charge and discharge of a battery module cannot be controlled under the condition that no charge and discharge equipment exists in an external circuit or the external charge and discharge equipment is abnormal due to failure.
Referring to fig. 2, in some embodiments, the charge and discharge control apparatus includes: the battery module 100, the first control module 200, the second control module 300, and the main control module 400. Specifically, the battery module 100 includes at least one battery module; the first control module 200 is electrically connected to one end of the battery module 100; the second control module 300 is electrically connected to the other end of the battery module 100; the main control module 400 is electrically connected to the battery module 100, the first control module 200 and the second control module 300, respectively, and is configured to control the conduction states of the first control module 200 and the second control module 300 and control the working states of the charge and discharge control device. Specifically, the first control module 200 and the second control module 300 are electrically connected to external devices, respectively, and the main control module 400 includes a BCMS. If the external device is a device such as a PCS capable of controlling charging and discharging, the main control module 400 controls the first control module 200 to be turned on to pre-charge the battery module 100. The pre-charging condition may be that a difference between a capacitor voltage of the external device and a battery voltage is within 10%, after the pre-charging of the battery module 100 by the first control module 200 is completed, the main control module 400 controls the first control module 200 and the second control module 300 to be turned on, so that the charging and discharging of the battery module 100 is controlled by the device capable of controlling charging and discharging, and after the charging is completed, the main control module 400 controls the first control module 200 and the second control module 300 to be turned off. If the external device is a device that cannot control charging and discharging, the main control module 400 controls the first control module 200 and the second control module 300 to perform charging and discharging control. The specific charging process is as follows: the main control module 400 controls the first control module 200 to be turned on to pre-charge the battery module 100. After the first control module 200 is precharged, the main control module 400 controls the first control module 200 to be turned off and the second control module 300 to be turned on to control the battery module 100 to be charged, and after the charging is completed, the main control module 400 controls the second control module 200 to be turned off. The specific discharging process is as follows: the main control module 400 controls the first control module 200 to be turned on to pre-charge the battery module 100. After the first control module 200 completes the pre-charging, the main control module 400 controls the first control module 200 to keep the on state to control the discharging of the battery module 100, and after the charging is completed, the main control module 400 controls the first control module 200 to turn off. It is understood that the initial state of the first and second control modules 200 and 300 is an off state.
The charge and discharge control device according to the embodiment of the application controls the conduction states of the first control module 200 and the second control module 300 through the main control module 400 to control the charge and discharge of the battery module 100. The charge and discharge control device according to the embodiment of the present application may control charge and discharge of the battery module 100 under the condition that there is no charge and discharge device in the external line or the external charge and discharge device is abnormal in failure.
Referring to fig. 3, in some embodiments of the present application, the first control module 200 includes: a first diode D1, a first switch KM1, a second switch KM2 and a first resistor R1. Specifically, one end of the first diode D1 is electrically connected to one end of the battery module 100 and the first port of the main control module 400, respectively, and the other end of the first diode D1 is electrically connected to the second port of the main control module 400. One end of the first switch KM1 is electrically connected to one end of the battery module 100, the first port of the main control module 400, and one end of the first diode D1, respectively, and the other end of the first switch KM1 is electrically connected to the other end of the first diode D1 and the second port of the main control module 400, respectively. One end of the second switch KM2 is electrically connected to the other end of the first diode D1, the other end of the first switch KM1, and the second port of the main control module 400, respectively. One end of the first resistor R1 is electrically connected to one end of the battery module 100, the first port of the main control module 400, one end of the first switch KM1, and one end of the first diode D1, respectively, and the other end of the first resistor R1 is electrically connected to the other end of the second switch KM 2.
It should be noted that, the main control module 400 in this embodiment of the present application includes a BCMS, where a first port of the main control module 400 is a BAT + port of the BCMS, a second port is a BUS + port of the BCMS, a third port is a BAT-port of the BCMS, and a fourth port is a BUS-port of the BCMS.
In some embodiments of the present application, the second control module 300 includes: a second diode D2 and a third switch KM 3. One end of the second diode D2 is electrically connected to the other end of the battery module 100 and the third port of the main control module 400, respectively, and the other end of the second diode D2 is connected to the fourth port of the main control module 400; one end of the third switch KM3 is electrically connected to the other end of the battery module 100, the third port of the main control module 400, and one end of the second diode D2, respectively, and the other end of the third switch KM3 is electrically connected to the other end of the second diode D2, and the fourth port of the main control module 400, respectively.
In some embodiments of the present application, if the external device is a device such as a PCS capable of controlling charging and discharging, the operation sequence is as follows: at the beginning, the main control module 400 is powered on, the main control module 400 controls the second switch KM2 to be closed, and waits for the pre-charging to be completed, the main control module 400 controls the first switch KM1 to be closed, the second switch KM2 to be opened, and the third switch KM3 to be closed, and at this time, the charging and discharging of the battery module 100 can be controlled through the PCS.
It should be noted that, since the diode has a partial loss in the line, when the external device is a device such as a PCS that can control charging and discharging, the main control module 400 controls the first switch KM1 and the second switch KM2 to be closed and bypass the first diode D1, so as to reduce the loss of the device.
In some embodiments of the present application, if the external device is a load that is not controllable to charge and discharge, the first switch KM1 and the third switch KM3 may be controlled to be turned on or off by the main control module 400, so as to control charging and discharging of the battery module 100. The diode only allows current to pass through in a single direction, and blocks current in the reverse direction, so as to achieve the purpose of controlling charging and discharging according to the charging and discharging control device.
Wherein, the process of charging is: at the beginning, the main control module 400 is powered on, the main control module 400 controls the second switch KM2 to be closed, and waits for the pre-charging to be completed, the main control module 400 controls the third switch KM3 to be closed and the second switch KM2 to be opened, and at this time, the main control module 400 can control the battery module 100 to be charged.
The discharging process is as follows: at the beginning, the main control module 400 is powered on, the main control module 400 firstly closes the second switch KM2, and waits for the completion of the pre-charging, the main control module 400 controls to close the first switch KM1 and open the second switch KM2, and at this time, the main control module 400 can control the discharging of the battery module 100.
In some embodiments of the present application, the first control module 200 further comprises: fuse FU 1. One end of the fuse FU1 is electrically connected to one end of the battery module 100 and the first port of the main control module 400, and the other end of the fuse FU1 is electrically connected to one end of the first switch KM1, one end of the first diode D1, and one end of the first resistor R1. Fuse FU1 of the embodiment of this application simple structure, convenient to use to can the protection current.
Referring to fig. 4, in some embodiments of the present application, the first control module 200 includes: and a fourth switch KM 1. One end of the fourth switch KM1 is electrically connected to one end of the battery module 100 and the first port of the main control module 400, respectively, and the other end of the fourth switch KM1 is electrically connected to the second port of the main control module 400.
In some embodiments of the present application, the second control module 300 includes: a driving unit 310 and a control unit 320. Wherein the control unit 320 includes a fifth switch KM2, a second resistor R1. One end of the driving unit 310 is electrically connected to the other end of the battery module 100 and the third port of the main control module 400, respectively, and the other end of the driving unit 310 is electrically connected to the fourth port of the main control module 400; one end of the fifth switch KM2 is electrically connected to the other end of the driving unit 310 and the fourth port of the main control module 400, respectively; one end of the second resistor R1 is electrically connected to the other end of the battery module 100, the third port of the main control module 400, and one end of the driving unit 310, respectively, and the other end of the second resistor R1 is electrically connected to the other end of the fifth switch KM 2.
In some embodiments of the present application, the driving unit 310 includes: a first thyristor GT01, a second thyristor GT02, a drive plate. One end of the first thyristor GT01 is electrically connected to the other end of the battery module 100, the third end of the main control module 400, and one end of the second resistor R1, respectively, and the other end of the first thyristor GT01 is electrically connected to the fourth end of the main control module 400 and one end of the fifth switch KM2, respectively; one end of the second thyristor GT02 is electrically connected to the other end of the battery module 100, the third end of the main control module 400, one end of the second resistor R1, and one end of the first thyristor GT01, respectively, and the other end of the second thyristor GT02 is electrically connected to the other end of the first thyristor GT01, the fourth end of the main control module 400, and one end of the fifth switch KM2, respectively; one end of the drive board is electrically connected to the other end of the second thyristor GT02, and the other end of the drive board is electrically connected to one end of the first thyristor GT 01.
In some embodiments of the present application, the charging operation sequence is as follows: at the beginning, the master control module 400 is powered on, the master control module 400 firstly closes the fourth switch KM1 and the fifth switch KM2, waits for the completion of the precharge, opens the fifth switch KM2, drives the first thyristor GT01 to close through the driving board, and opens the second thyristor GT02, and then enters the charging state.
In some embodiments of the present application, the discharge operation sequence is as follows: at the beginning, the master control module 400 is powered on, the master control module 400 firstly closes the fourth switch KM1 and the fifth switch KM2, waits for the completion of the precharge, opens the fifth switch KM2, drives the second thyristor GT02 to close through the driving board, and then the first thyristor GT01 enters a discharging state.
In some embodiments of the present application, the first control module 200 further comprises: fuse FU1, one end of fuse FU1 is electrically connected with one end of battery module 100, and the other end of fuse FU1 is electrically connected with one end of fourth switch KM1, the first port of main control module 400 respectively. Fuse FU1 of the embodiment of this application simple structure, convenient to use to can the protection current.
In some embodiments of the present application, the charging and discharging control device may also be applied to an energy storage system, wherein the energy storage system is composed of a main system, a control system and an auxiliary system.
Referring to fig. 5, the energy storage system specifically adopts a management architecture of a secondary BMS, so as to control charging and discharging of the energy storage system by using the charging and discharging control device.
The main system comprises a charging and discharging control device, a BMS component, a direct current switch and a protection device. And the battery cell in the charge and discharge control device is a lithium iron phosphate battery. The battery module is internally composed of a plurality of lithium iron phosphate cores, series copper bars, a battery core fixing plastic part, a collection wiring harness and a Battery Management Unit (BMU). The battery cluster of the charge and discharge control device is provided with a battery module, a control box (comprising a main control module 400, a first control module 200 and a second control module 300) and other devices, and the control box comprises a power resistor, a power connector, a current divider, a switch, a BCMS and the like. The BMS component comprises a BMU and a BCMS component, and is dispersedly installed in a battery module and a control box of the charge and discharge control device.
The control system in the energy storage system comprises a management system, a protection system and a communication system.
The auxiliary system in the energy storage system comprises a lighting system, an auxiliary power distribution system, a heating and ventilating system, an environmental system, a grounding system and an emergency stop system. The lighting system is designed in the battery inner cabinet of the lighting system; the auxiliary power distribution system supports two modes of battery self-power supply and external power supply; the heating and ventilation system is actually provided with air inlet and outlet channels, a fan, a temperature and humidity switch, a heating resistor and other equipment so as to meet the requirement of application in different scenes; a smoke alarm, a temperature and humidity controller and the like are designed in a cabinet of the environmental system; a grounding copper bar is arranged in a battery cabinet of the grounding system and used for protecting grounding; a front cabinet door of a battery cabinet of the emergency stop system is provided with an emergency stop switch for emergency stop of the battery system under emergency.
Referring to fig. 6, specification parameters of each item of the battery module and the battery inner cabinet in the energy storage system according to the embodiment of the present application are described, and it should be noted that a person skilled in the art may set different parameters according to actual requirements, which is not described in detail herein.
The charge and discharge control device provided in the embodiment of the application controls the charge and discharge of the battery module 100 by controlling the conduction states of the first control module 200 and the second control module 300 through the main control module 400, wherein the battery module 100 of the charge and discharge control device can be connected to the energy storage system, so that the charge and discharge of the energy storage system can be controlled through the charge and discharge control device, and the problem of controlling the charge and discharge of the energy storage system is solved.
The embodiments described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation to the technical solutions provided in the embodiments of the present disclosure, and it is obvious to those skilled in the art that the technical solutions provided in the embodiments of the present disclosure are also applicable to similar technical problems with the evolution of technology and the emergence of new application scenarios.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, and therefore do not limit the scope of the claims of the embodiments of the present disclosure. Any modifications, equivalents and improvements that may occur to those skilled in the art without departing from the scope and spirit of the embodiments of the present disclosure are intended to be within the scope of the claims of the embodiments of the present disclosure.
Claims (8)
1. A charge/discharge control device is characterized by comprising:
a battery module including at least one battery module;
the first control module is electrically connected with one end of the battery module;
the second control module is electrically connected with the other end of the battery module;
the main control module is respectively electrically connected with the battery module, the first control module and the second control module, is used for controlling the conduction states of the first control module and the second control module, and is used for controlling the working state of the charging and discharging control device.
2. The charge-discharge control device according to claim 1, wherein the first control module includes:
one end of the first diode is electrically connected with one end of the battery module and the first port of the main control module respectively, and the other end of the first diode is electrically connected with the second port of the main control module;
one end of the first switch is electrically connected with one end of the battery module, the first port of the main control module and one end of the first diode respectively, and the other end of the first switch is electrically connected with the other end of the first diode and the second port of the main control module respectively;
one end of the second switch is electrically connected with the other end of the first diode, the other end of the first switch and the second port of the main control module respectively;
one end of the first resistor is electrically connected with one end of the battery module, the first port of the main control module, one end of the first switch and one end of the first diode respectively, and the other end of the first resistor is electrically connected with the other end of the second switch.
3. The charge-discharge control device according to claim 2, wherein the second control module includes:
one end of the second diode is electrically connected with the other end of the battery module and the third port of the main control module respectively, and the other end of the second diode is electrically connected with the fourth port of the main control module;
and one end of the third switch is electrically connected with the other end of the battery module, the third port of the master control module and one end of the second diode respectively, and the other end of the third switch is electrically connected with the other end of the second diode and the fourth port of the master control module respectively.
4. The charge and discharge control device according to any one of claims 2 to 3, wherein the first control module further includes:
the fuse, the one end of fuse respectively with the one end of battery module the first port electricity of host system is connected, the other end of fuse respectively with the one end of first switch the one end of first diode and the one end electricity of first resistance is connected.
5. The charge-discharge control device according to claim 1, wherein the first control module includes:
and one end of the fourth switch is electrically connected with one end of the battery module and the first port of the main control module respectively, and the other end of the fourth switch is electrically connected with the second port of the main control module.
6. The charge and discharge control device according to claim 5, wherein the second control module includes:
one end of the driving unit is electrically connected with the other end of the battery module and the third port of the main control module respectively, and the other end of the driving unit is electrically connected with the fourth port of the main control module;
one end of the fifth switch is electrically connected with the other end of the driving unit and the fourth port of the main control module respectively;
and one end of the second resistor is electrically connected with the other end of the battery module, the third port of the main control module and one end of the driving unit respectively, and the other end of the second resistor is electrically connected with the other end of the fifth switch.
7. The charge-discharge control device according to claim 6, wherein the drive unit includes:
one end of the first thyristor is electrically connected with the other end of the battery module, the third end of the main control module and one end of the second resistor respectively, and the other end of the first thyristor is electrically connected with the fourth end of the main control module and one end of the fifth switch respectively;
one end of the second thyristor is electrically connected with the other end of the battery module, the third end of the main control module, one end of the second resistor and one end of the first thyristor respectively, and the other end of the second thyristor is electrically connected with the other end of the first thyristor, the fourth end of the main control module and one end of the fifth switch respectively;
and one end of the driving board is electrically connected with the other end of the second thyristor, and the other end of the driving board is electrically connected with one end of the first thyristor.
8. The charge-discharge control device according to any one of claims 5 to 7, wherein the first control module further includes:
the fuse, the one end of fuse with battery module's one end electricity is connected, the other end of fuse respectively with the one end of fourth switch the first port electricity of host system is connected.
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| CN202011418609.2A CN112564223B (en) | 2020-12-07 | 2020-12-07 | Charge-discharge control device |
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| CN202011418609.2A CN112564223B (en) | 2020-12-07 | 2020-12-07 | Charge-discharge control device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100109606A1 (en) * | 2008-05-16 | 2010-05-06 | Cheng Uei Precision Industry Co., Ltd. | Charging control circuit |
| CN103515979A (en) * | 2013-03-21 | 2014-01-15 | 王林兵 | Low-cost single-phase integrated energy feedback system |
| CN203859558U (en) * | 2014-04-25 | 2014-10-01 | Tcl通力电子（惠州）有限公司 | Electronic equipment and external charging circuit thereof |
| CN109962487A (en) * | 2019-03-20 | 2019-07-02 | 嘉兴市恒创电力设备有限公司 | A kind of energy-storage battery group high-voltage control circuit and control cabinet |
| CN214798903U (en) * | 2020-12-07 | 2021-11-19 | 深圳市科陆电子科技股份有限公司 | Charge and discharge control device |
-
2020
- 2020-12-07 CN CN202011418609.2A patent/CN112564223B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100109606A1 (en) * | 2008-05-16 | 2010-05-06 | Cheng Uei Precision Industry Co., Ltd. | Charging control circuit |
| CN103515979A (en) * | 2013-03-21 | 2014-01-15 | 王林兵 | Low-cost single-phase integrated energy feedback system |
| CN203859558U (en) * | 2014-04-25 | 2014-10-01 | Tcl通力电子（惠州）有限公司 | Electronic equipment and external charging circuit thereof |
| CN109962487A (en) * | 2019-03-20 | 2019-07-02 | 嘉兴市恒创电力设备有限公司 | A kind of energy-storage battery group high-voltage control circuit and control cabinet |
| CN214798903U (en) * | 2020-12-07 | 2021-11-19 | 深圳市科陆电子科技股份有限公司 | Charge and discharge control device |
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