Control circuit of lead-acid storage battery and electric vehicle

Abstract

The utility model provides a control circuit of a lead-acid storage battery and an electric vehicle. The control circuit comprises a battery compartment, a charging interface, a discharging interface and a temperature detection line, a lead-acid storage battery pack is arranged in the battery bin, the lead-acid storage battery pack comprises a plurality of lead-acid storage battery modules, and the lead-acid storage battery modules are connected in series through connecting wires; a fuse integrated assembly is connected in series at any section of the connecting wire, and an overvoltage fuse and an overcurrent fuse are integrated in the fuse integrated assembly; after being connected in parallel, the charging interface and the discharging interface are connected with a total positive electrode and a total negative electrode of the lead-acid storage battery pack; one end of the temperature detection line is attached to the surface of the lead-acid storage battery pack to collect the working temperature of the lead-acid storage battery pack, and the other end of the temperature detection line is respectively connected with the discharge interface and the charge interface; the control circuit is simple in structure and few in parts, and faults of electronic components are reduced; software control is not needed, and the overvoltage fuse is used for protection; temperature is directly collected through the temperature detection line, and communication is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle control technical field especially lead acid battery's control circuit and electric vehicle. BACKGROUND

[0002] With the popularization and application of lead acid battery in the field of electric vehicles, the industry pays more and more attention to the safety protection of lead acid battery. The lead acid BMS (lead acid battery management system) existing in the market at present generally has the shortcomings of complex design, unstable software control and communication, many electronic component faults, and short service life under continuous high temperature. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model aims at providing lead acid battery's control circuit and electric vehicle, control circuit simple structure, spare parts are few, can reduce electronic component fault, need not software control, protection through overvoltage fuse, through temperature detection line direct collection temperature, need not communication, ensure the service life of control circuit.

[0004] In the first aspect, the utility model embodiment provides a control circuit of lead acid battery, the control circuit includes battery compartment, charging interface, discharge interface and temperature detection line;

[0005] The battery compartment is provided with a lead acid battery pack, and the lead acid battery pack comprises a plurality of lead acid battery modules.

[0006] The fuse integrated assembly is connected in series at any section of the connecting wire.

[0007] The charging interface and the discharge interface are connected in parallel and connected to the total positive electrode and the total negative electrode of the lead acid battery pack.

[0008] One end of the temperature detection line is attached to the surface of the lead acid battery pack and collects the working temperature of the lead acid battery pack, and the other end of the temperature detection line is connected to the discharge interface and the charging interface respectively.

[0009] Further, the lead acid battery pack is arranged in a semi-closed pedal battery compartment or a seat battery compartment.

[0010] Further, the fuse integrated assembly is connected in series at the connecting wire between each lead acid battery module, the total positive wire or the total negative wire.

[0011] Further, the fuse integrated assembly is a fuse integrated plate or a fuse integrated box.

[0012] Further, when the overvoltage fuse is in a set action voltage range, the control circuit is normally opened; when the overvoltage fuse is in a set recovery voltage range, the control circuit is recovered to be closed.

[0013] The set action voltage range is 60V-200V, and the set recovery voltage range is less than 60V.

[0014] Further, the overvoltage fuse comprises a voltage-controlled fuse and a voltage-dependent resistor.

[0015] In a second aspect, the utility model discloses a control circuit of lead -acid battery and electric motor car are provided.

[0016] The utility model discloses a control circuit of lead -acid battery and electric motor car, and control circuit includes battery compartment, charging interface, discharge interface and temperature detection line, and the battery compartment is provided with lead -acid battery group, and lead -acid battery group includes a plurality of lead -acid battery module, and every lead -acid battery module is connected in series through connecting wire, and the series connection insurance integrated assembly is connected at any one section of connecting wire, and the series connection overvoltage fuse and overcurrent fuse are integrated in insurance integrated assembly, and charging interface and discharge interface are connected in parallel and are connected with the total positive pole and total negative pole of lead -acid battery group, and one end of temperature detection line is attached to the surface of lead -acid battery group, and the working temperature of lead -acid battery group is gathered, and the other end of temperature detection line is connected with discharge interface and charging interface respectively, control circuit simple structure, and few parts can reduce electronic component failure, need not software control, and protection is carried out through overvoltage fuse, and temperature is directly gathered through temperature detection line, and communication is not needed, and the service life of control circuit is ensured.

[0017] Other features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the application.

[0018] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is made as follows by combining with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is made as follows by combining with the accompanying drawings.

[0020] Figure 1 The control circuit structure schematic diagram of the lead-acid storage battery is provided for the embodiment one of the utility model.

[0021] Icon:

[0022] 1-battery compartment;2-connection wire;3-wiring terminal;4-lead-acid storage battery module;5-discharge interface;6-charge interface;7-total positive wire;8-temperature detection line;9-total negative wire;10-charge overcurrent fuse;11-fuse integrated assembly;12-overcurrent fuse;13-overvoltage fuse. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme of the utility model will be described clearly and completely below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0024] In order to facilitate the understanding of the embodiment, the embodiment of the utility model will be introduced in detail below.

[0025] Embodiment one:

[0026] Figure 1 The control circuit structure schematic diagram of the lead-acid storage battery is provided for the embodiment one of the utility model.

[0027] Referring to Figure 1 , the control circuit includes battery compartment 1, charge interface 6, discharge interface 5 and temperature detection line 8;Still include: connection wire 2, wiring terminal 3, lead-acid storage battery module 4, total positive wire 7, total negative wire 9 and charge overcurrent fuse 10.

[0028] The lead-acid battery pack is arranged in the battery compartment 1, and the lead-acid battery pack includes a plurality of lead-acid storage battery modules 4, and each lead-acid storage battery module 4 is connected in series through the connection wire 2;

[0029] The fuse integrated assembly 11 is connected in series at any section of the connection wire 2, and the overvoltage fuse 13 and the overcurrent fuse 12 integrated in series are integrated in the fuse integrated assembly 11;

[0030] The charge interface 6 and the discharge interface 5 are connected in parallel and connected with the total positive pole and the total negative pole of the lead-acid battery pack;

[0031] One end of the temperature detection line 8 is attached to the surface of the lead-acid battery pack, and the working temperature of the lead-acid battery pack is collected, and the other end of the temperature detection line 8 is connected with the discharge interface 5 and the charge interface 6 respectively.

[0032] Specifically, the discharging interface 5 is connected with the other end of the temperature detection line 8, for collecting the working temperature of the lead-acid battery pack, so that the vehicle temperature protection alarm device obtains the working temperature of the battery.

[0033] Preferably, the temperature detection line 8 is connected in parallel to the charging interface 6, so that the charger temperature protection device obtains the working temperature of the battery. Preferably, the discharging interface 5 and the charging interface 6 are the charging and discharging interfaces of the lead-acid battery pack.

[0034] In the embodiment, the control circuit has simple structure and few components, and the electronic component failure can be reduced; the application does not need software control, and is protected by the overvoltage fuse, i.e., when the overvoltage fuse is within the set action voltage range, the control circuit is normally opened;

[0035] When the overvoltage fuse is within the set recovery voltage range, the control circuit is recovered to be closed; the temperature is directly collected by the temperature detection line, without communication, and the service life of the control circuit is ensured.

[0036] Further, the lead-acid battery pack is arranged in a semi-closed pedal battery compartment or a bucket battery compartment.

[0037] Further, the fuse integrated assembly 11 is connected in series at the connection wire 2 between each lead-acid battery module 4, the total positive wire 7 or the total negative wire 9.

[0038] Here, the fuse integrated assembly 11 is connected in series at any section of the connection wire 2, including but not limited to between two lead-acid battery modules, the total positive wire and the total negative wire.

[0039] The fuse integrated assembly 11 is a fuse integrated board or a fuse integrated box, including but not limited to a bare circuit board or a circuit board with a packaging shell.

[0040] Further, the discharging interface 5 is connected with the total positive pole of the lead-acid battery pack through the total positive wire 7 and connected with the total negative pole of the lead-acid battery pack through the total negative wire 9.

[0041] The charging interface 6 is connected with the total positive pole of the lead-acid battery pack through the total positive wire 7 and connected with the total negative pole of the lead-acid battery pack through the total negative wire 9.

[0042] Further, when the overvoltage fuse 13 is within the set action voltage range, the control circuit is normally opened; when the overvoltage fuse 13 is within the set recovery voltage range, the control circuit is recovered to be closed.

[0043] The set action voltage range is 60V-200V, and the set recovery voltage range is less than 60V.

[0044] Further, the overvoltage fuse 13 comprises a voltage-controlled fuse and a voltage-dependent resistor.

[0045] Specifically, the fuse integrated assembly 11 is integrated with the overvoltage fuse 13 and the overcurrent fuse 12 in series, and the overvoltage fuse 13 comprises but is not limited to a voltage-controlled fuse, a voltage-dependent resistor and the like electronic components.

[0046] The voltage-controlled fuse and the voltage-dependent resistor assembly normally disconnect the control circuit within a set action voltage range, and can restore the closed control circuit within a set recovery voltage range.

[0047] Preferably, the set action voltage range is 60V-200V, and the set recovery voltage range is less than 60V.

[0048] Further, when the working current of the control circuit reaches the set fusing value of the overcurrent fuse 12, the overcurrent fuse 12 disconnects the control circuit.

[0049] Preferably, the set fusing value is 25A-40A.

[0050] Specifically, the overcurrent fuse 12 comprises but is not limited to a screw fuse, a tube fuse and a plug-in fuse.

[0051] When the working current of the control circuit reaches the set fusing value of the overcurrent fuse 12, the overcurrent fuse 12 can disconnect the control circuit, and only by replacing a new fuse can the overcurrent fuse 12 restore the work after fusing. Preferably, the set fusing value is 25A-40A.

[0052] Further, the control circuit further comprises a charging overcurrent fuse 10, and the fusing value of the charging overcurrent fuse 10 is 10A-15A.

[0053] The utility model embodiment provides electric motor car, including the control circuit of lead acid battery as described above.

[0054] The utility model embodiment provides control circuit and electric motor car of lead -acid battery, control circuit includes battery compartment, charging interface, discharge interface and temperature detection line, the battery compartment is provided with lead -acid battery group, lead -acid battery group includes a plurality of lead -acid battery module, and the lead -acid battery module is connected in series through connecting wire between every lead -acid battery module, the connecting wire is connected in series and connects the fuse integrated assembly at any section, and the fuse integrated assembly is integrated with the overvoltage fuse and the overcurrent fuse connected in series, the charging interface and discharge interface are connected in parallel and are connected with the total positive pole and total negative pole of lead -acid battery group, one end of temperature detection line is attached to the surface of lead -acid battery group, and the working temperature of lead -acid battery group is collected, and the other end of temperature detection line is connected with discharge interface and charging interface respectively, control circuit simple structure, less parts, can reduce electronic component failure, need not software control, protection is carried out through overvoltage fuse, and temperature is directly collected through temperature detection line, need not communication, ensure the service life of control circuit.

[0055] The computer program product provided in the embodiment of the utility model comprises a computer readable storage medium storing program codes, and the instructions included in the program codes can be used to execute the method described in the foregoing method embodiment.

[0056] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the foregoing method embodiment, and will not be repeated here.

[0057] In addition, in the description of the embodiment of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0058] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0059] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same, and the protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features within the technical range disclosed by the present application; and these modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control circuit for a lead-acid storage battery, characterised in that, The control circuit comprises a battery compartment, a charging interface, a discharging interface and a temperature detection line; The battery compartment is provided with a lead-acid storage battery group, which comprises a plurality of lead-acid storage battery modules, and each of the lead-acid storage battery modules is connected in series through a connecting wire; An integrated fuse assembly is connected in series at any section of the connecting wire, and the integrated fuse assembly is integrated with a series of overvoltage fuses and overcurrent fuses; The charging interface and the discharging interface are connected in parallel and then connected to the total positive electrode and the total negative electrode of the lead-acid storage battery group; One end of the temperature detection line is attached to the surface of the lead-acid storage battery group to collect the working temperature of the lead-acid storage battery group, and the other end of the temperature detection line is connected to the discharging interface and the charging interface, respectively.

2. A control circuit for a lead-acid storage battery as defined in claim 1, characterized in that The lead-acid storage battery group is arranged in a semi-closed pedal battery compartment or a bucket battery compartment.

3. A control circuit for a lead-acid storage battery as defined in claim 1, characterized in that The integrated fuse assembly is connected in series at the connecting wire between each of the lead-acid storage battery modules, the total positive wire or the total negative wire.

4. The control circuit for a lead-acid battery of claim 1, wherein, The integrated fuse assembly is an integrated fuse plate or an integrated fuse box.

5. The control circuit for a lead-acid battery of claim 1 wherein, When the overvoltage fuse is in a set action voltage range, the control circuit is normally opened; when the overvoltage fuse is in a set recovery voltage range, the control circuit is recovered and closed. The set action voltage range is 60V-200V, and the set recovery voltage range is less than 60V.

6. A control circuit for a lead-acid battery as claimed in claim 5, characterised in that, The overvoltage fuse comprises a voltage-controlled fuse and a voltage-dependent resistor.

7. An electric vehicle characterized by comprising: A control circuit of a lead-acid storage battery according to any one of claims 1 to 6.

Images