Energy storage battery fault display control circuit

Abstract

The utility model discloses a fault display control circuit for an energy storage battery, and the circuit comprises a micro-control unit which is used for generating an alarm indication lamp control signal according to the type of a battery fault; the alarm indicating lamp module is used for controlling an alarm indicating lamp to flicker according to the alarm indicating lamp control signal generated by the micro-control unit; and the power supply module is used for providing electric energy required by work for the micro-control unit and the alarm indicating lamp module. According to the utility model, the specific fault of the battery can be known according to the flickering condition of the alarm indicating lamp, a user or a maintainer can repair the battery according to the specific fault, the fault can be handled and solved after sale, and the user can know the fault state of the battery more quickly and intuitively.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to a fault display control circuit for an energy storage battery. Background Art

[0002] People have a growing demand for energy storage batteries, and they will encounter various types of faults during use. The existing practice is to use external devices to determine the specific faults of the battery, and it is impossible to visually determine the specific faults. Therefore, when a battery fails, it is impossible to determine the battery fault information without external devices such as the Internet and monitoring equipment, resulting in the user or maintenance personnel being unable to repair the battery in time.

[0003] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a storage battery fault display control circuit in view of the deficiencies of the prior art, the control circuit can control the flashing of the alarm indicator light according to the battery fault type, so that the user or maintenance personnel can understand the battery fault status more intuitively.

[0005] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A storage battery fault display control circuit, comprising:

[0007] A micro control unit, the micro control unit is used to generate a warning indicator light control signal according to the type of battery failure;

[0008] an alarm indicator light module, the alarm indicator light module being used to control the alarm indicator light to flash according to the alarm indicator light control signal generated by the micro control unit; and

[0009] A power supply module is used to provide the micro control unit and the alarm indicator light module with the electrical energy required for operation.

[0010] In a preferred embodiment of the present invention, the micro control unit adopts an MCU chip of model GDM32F305VCT6.

[0011] In a preferred embodiment of the utility model, the alarm indicator light module includes a first and a second resistor, a first capacitor, a first transistor and a light emitting diode, one end of the first resistor serves as a signal input end of the alarm indicator light module and is connected to the signal output end of the micro control unit, the other end of the first resistor is connected in parallel with one end of the second resistor and one end of the first capacitor and then connected to the base of the first transistor, the other end of the second resistor, the other end of the first capacitor and the emitter of the first transistor are grounded, the collector of the first transistor is connected to the cathode of the light emitting diode, and the anode of the light emitting diode serves as the power input end of the alarm indicator light module and is connected to the power output end of the power module.

[0012] In a preferred embodiment of the present utility model, the power module comprises:

[0013] A first-stage voltage reduction processing unit, which is connected to the battery module and is used to perform a first voltage reduction process on the voltage input by the battery module;

[0014] The second-stage step-down processing unit is connected to the first-stage step-down processing unit and is used to perform a second step-down processing on the voltage output by the first-stage step-down processing unit to obtain a voltage suitable for the micro control unit and the alarm indicator light module.

[0015] In a preferred embodiment of the utility model, the first-stage step-down processing unit includes a first, second, and third diodes, a first voltage-stabilizing diode, a second, third, fourth, and fifth capacitors, and a second and third transistors. The positive electrode of the first diode serves as the power input terminal of the power module and is connected to the battery module, and the negative electrode thereof is connected in parallel with one end of the second capacitor, one end of the third capacitor, the positive electrode of the second diode, the base of the second transistor, and the collector of the third transistor. The other end of the second capacitor and the other end of the third capacitor are connected in parallel and then grounded. The negative electrode of the second diode is connected to the negative electrode of the first voltage-stabilizing diode, and the positive electrode of the first voltage-stabilizing diode is grounded. The emitter of the second transistor is connected to the base of the third transistor, and the emitter of the third transistor is connected to the positive electrode of the third diode. The negative electrode of the third diode is connected in parallel with one end of the fourth capacitor and one end of the fifth capacitor and then serves as the output terminal of the first-stage step-down processing unit. The other end of the fourth capacitor and the other end of the fifth capacitor are connected in parallel and then grounded.

[0016] In a preferred embodiment of the utility model, the second-stage step-down processing unit includes a fourth diode, a second voltage-stabilizing diode, a sixth, seventh, eighth, and ninth capacitors and a step-down control chip, the positive electrode of the fourth diode serves as the input end of the second-stage step-down processing unit and is connected to the output end of the first-stage step-down processing unit, the negative electrode thereof is connected in parallel with one end of the sixth capacitor and one end of the seventh capacitor and then connected to the voltage input end of the step-down control chip, the other end of the sixth capacitor, the other end of the seventh capacitor and the ground end of the step-down control chip are connected in parallel and then grounded, the voltage output end of the step-down control chip is connected in parallel with one end of the eighth capacitor, one end of the ninth capacitor, and the negative electrode of the second voltage-stabilizing diode and then serves as the power output end of the power module, the other end of the eighth capacitor, the other end of the ninth capacitor and the positive electrode of the second voltage-stabilizing diode are connected in parallel and then grounded.

[0017] In a preferred embodiment of the present invention, the voltage-step-down control chip is a voltage control chip of model TLV70433.

[0018] Due to the adoption of the above technical solution, the beneficial effect of the utility model is that when a fault occurs, the utility model can know the specific fault of the battery through the flashing of the alarm indicator light, and the user or maintenance personnel can repair the battery according to the specific fault, which is conducive to after-sales processing and solving the fault. For the user, it can understand the battery fault status more quickly and intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0022] See also Figure 1 , the figure shows a storage battery fault display control circuit, including a micro control unit 100, an alarm indicator light module 200 and a power supply module 300.

[0023] The micro control unit 100 is used to generate a warning indicator light control signal according to the type of battery failure. In this embodiment, the micro control unit 100 uses an MCU chip of model GDM32F305VCT6.

[0024] The warning indicator light module 200 is used to control the warning indicator light to flash according to the warning indicator light control signal generated by the micro control unit 100. Specifically, the warning indicator light module 200 includes resistors R1, R2, capacitor C1, transistor Q1 and light emitting diode D1. One end of the resistor R1 is used as the signal input end of the warning indicator light module 200 and is connected to the signal output end of the micro control unit 100, and the other end of the resistor R1 is connected in parallel with one end of the resistor R2 and one end of the capacitor C1 and then connected to the base of the transistor Q1, the other end of the resistor R2, the other end of the capacitor C1 and the emitter of the transistor Q1 are grounded, the collector of the transistor Q1 is connected to the cathode of the light emitting diode D1, and the anode of the light emitting diode D1 is used as the power input end of the warning indicator light module 200 and is connected to the power output end of the power module 300.

[0025] The power module 300 is used to provide the micro control unit 100 and the micro control unit 100 with the electric energy required for operation. Specifically, the power module 300 includes a first-stage step-down processing unit 310 and a second-stage step-down processing unit 320. The first-stage step-down processing unit 310 is connected to the battery module and is used to perform the first step-down processing on the voltage input by the battery module. The voltage of the battery module is usually 52V, and the voltage after the step-down processing by the first-stage step-down processing unit 310 is 18V. The second-stage step-down processing unit 320 is connected to the first-stage step-down processing unit 310 and is used to perform the second step-down processing on the voltage output by the first-stage step-down processing unit 310. The voltage after the step-down processing by the second-stage step-down processing unit 320 is 3.3V, which is suitable for the voltage of the micro control unit 100 and the alarm indicator module 200.

[0026] The first-stage step-down processing unit 310 includes diodes D2, D3, D4, a voltage-stabilizing diode D5, capacitors C2, C3, C4, C5, and transistors Q2 and Q3. The anode of the diode D2 is used as the power input terminal of the power module 300 and is connected to the battery module, and its cathode is connected in parallel with one end of the capacitor C2, one end of the capacitor C3, the anode of the diode D3, the base of the transistor Q2, and the collector of the transistor Q3. The other end of the capacitor C2 and the other end of the capacitor C3 are connected in parallel and then grounded. The cathode of the diode Q2 is connected to the cathode of the voltage-stabilizing diode D5, and the anode of the voltage-stabilizing diode D5 is grounded. The emitter of the transistor Q2 is connected to the base of the transistor Q3, and the emitter of the transistor Q3 is connected to the anode of the diode D4. The cathode of the diode D4 is connected in parallel with one end of the capacitor C4 and one end of the capacitor C5 and then serves as the output terminal of the first-stage step-down processing unit 310. The other end of the capacitor C4 and the other end of the capacitor C5 are connected in parallel and then grounded. The diode D3 and the voltage stabilizing diode D5 play a role in voltage stabilization, the transistor Q2 plays a role in signal amplification, and the transistor Q3 plays a role in switch.

[0027] The second-stage buck processing unit 320 includes a diode D6, a voltage stabilizing diode D7, capacitors C6, C7, C8, C9, and a buck control chip U1. The positive electrode of the diode D6 is used as the input end of the second-stage buck processing unit 320 and is connected to the output end of the first-stage buck processing unit 310, and its negative electrode is connected to one end of the capacitor C6 and one end of the capacitor C7 in parallel and then connected to the voltage input end of the buck control chip U1, and the other end of the capacitor C6, the other end of the capacitor C7 and the ground end of the buck control chip U1 are connected in parallel and then grounded, and the voltage output end of the buck control chip U1 is connected in parallel with one end of the capacitor C8, one end of the capacitor C9, and the negative electrode of the voltage stabilizing diode D7 as the power output end of the power module 300, and the other end of the capacitor C8, the other end of the capacitor C9 and the positive electrode of the voltage stabilizing diode D7 are connected in parallel and then grounded. Among them, the diode D6 plays a role in voltage stabilization. In this embodiment, the buck control chip U1 adopts a voltage control chip with a model of TLV70433.

[0028] The energy storage battery fault display control circuit of the utility model can intuitively understand the battery fault status through the flashing of the alarm indicator light when a fault occurs in the battery running state without a network, external devices such as monitoring equipment, and the battery fault information cannot be determined.

[0029] When the battery is running without any fault or the fault is not written into the battery management system, the energy storage battery fault display control circuit of the present invention is a low-level LED light and does not make any action. When a fault occurs, the micro control unit 100 quickly searches whether the fault is already in the battery management system and makes a judgment. After confirming the fault, the micro control unit 100 sends a high-level signal to control the LED light to flash, thereby achieving a specific fault display.

[0030] The flashing conditions corresponding to common specific faults are as follows:

[0031]

[0032]

[0033] If multiple faults occur, the micro control unit 100 will make the warning indicator lights flash alternately according to the flashing conditions corresponding to the multiple faults.

[0034] The utility model can know the specific battery fault through the flashing of the alarm indicator light. The user or maintenance personnel can repair the battery according to the specific fault, which is conducive to after-sales processing and solving the fault. For the user, it can understand the battery fault status more quickly and intuitively.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A storage battery fault display control circuit, characterized in that: include: A micro control unit, the micro control unit is used to generate a warning indicator light control signal according to the type of battery failure; an alarm indicator light module, the alarm indicator light module being used to control the alarm indicator light to flash according to the alarm indicator light control signal generated by the micro control unit; and A power supply module is used to provide the micro control unit and the alarm indicator light module with the electrical energy required for operation.

2. The energy storage battery fault display control circuit according to claim 1, characterized in that: The microcontroller unit adopts an MCU chip of model GDM32F305VCT6.

3. The energy storage battery fault display control circuit according to claim 1, characterized in that: The warning indicator light module includes a first and a second resistor, a first capacitor, a first transistor and a light emitting diode. One end of the first resistor serves as a signal input end of the warning indicator light module and is connected to a signal output end of the micro control unit. The other end of the first resistor is connected in parallel with one end of the second resistor and one end of the first capacitor and then connected to the base of the first transistor. The other end of the second resistor, the other end of the first capacitor and the emitter of the first transistor are grounded. The collector of the first transistor is connected to the cathode of the light emitting diode. The anode of the light emitting diode serves as a power input end of the warning indicator light module and is connected to the power output end of the power module.

4. The energy storage battery fault display control circuit according to claim 3, characterized in that: The power module comprises: A first-stage voltage reduction processing unit, which is connected to the battery module and is used to perform a first voltage reduction process on the voltage input by the battery module; The second-stage step-down processing unit is connected to the first-stage step-down processing unit and is used to perform a second step-down processing on the voltage output by the first-stage step-down processing unit to obtain a voltage suitable for the micro control unit and the alarm indicator light module.

5. The energy storage battery fault display control circuit according to claim 4, characterized in that: The first-stage step-down processing unit includes a first, second, and third diode, a first voltage-stabilizing diode, a second, third, fourth, and fifth capacitors, and a second and third transistors. The positive electrode of the first diode serves as the power input terminal of the power module and is connected to the battery module, and the negative electrode thereof is connected in parallel with one end of the second capacitor, one end of the third capacitor, the positive electrode of the second diode, the base of the second transistor, and the collector of the third transistor. The other end of the second capacitor and the other end of the third capacitor are connected in parallel and then grounded. The negative electrode of the second diode is connected to the negative electrode of the first voltage-stabilizing diode, and the positive electrode of the first voltage-stabilizing diode is grounded. The emitter of the second transistor is connected to the base of the third transistor, and the emitter of the third transistor is connected to the positive electrode of the third diode. The negative electrode of the third diode is connected in parallel with one end of the fourth capacitor and one end of the fifth capacitor and then serves as the output terminal of the first-stage step-down processing unit. The other end of the fourth capacitor and the other end of the fifth capacitor are connected in parallel and then grounded.

6. The energy storage battery fault display control circuit according to claim 5, characterized in that: The second-stage step-down processing unit includes a fourth diode, a second voltage-stabilizing diode, a sixth, seventh, eighth, and ninth capacitors and a step-down control chip. The anode of the fourth diode serves as the input end of the second-stage step-down processing unit and is connected to the output end of the first-stage step-down processing unit. The cathode of the fourth diode is connected in parallel with one end of the sixth capacitor and one end of the seventh capacitor and then connected to the voltage input end of the step-down control chip. The other end of the sixth capacitor, the other end of the seventh capacitor, and the ground end of the step-down control chip are connected in parallel and then grounded. The voltage output end of the step-down control chip is connected in parallel with one end of the eighth capacitor, one end of the ninth capacitor, and the negative electrode of the second voltage-stabilizing diode and then serves as the power output end of the power module. The other end of the eighth capacitor, the other end of the ninth capacitor, and the anode of the second voltage-stabilizing diode are connected in parallel and then grounded.

7. The energy storage battery fault display control circuit according to claim 6, characterized in that: The step-down control chip adopts a voltage control chip of model TLV70433.

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