CN217739417U - A coulometer for fork truck - Google Patents
A coulometer for fork truck Download PDFInfo
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- CN217739417U CN217739417U CN202221711205.7U CN202221711205U CN217739417U CN 217739417 U CN217739417 U CN 217739417U CN 202221711205 U CN202221711205 U CN 202221711205U CN 217739417 U CN217739417 U CN 217739417U
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Abstract
The utility model discloses an electricity meter for fork truck contains: the device comprises a power supply conversion system module, a battery voltage acquisition module, an MCU control module, a battery voltage selection module, an alarm output module and an electric quantity display module; the power conversion system module is connected to the battery voltage acquisition module, the MCU control module, the battery voltage selection module, the alarm output module and the electric quantity display module to provide electric energy; the MCU control module comprises an MCU control circuit; the MCU control circuit includes: a chip U2 and a capacitor C5; the output of a 2 nd pin OUT of the chip U2 is connected to an alarm output module, the input of a 3 rd pin AD1 of the chip U2 is connected to a battery voltage selection module, pins 9, 10, 11, 12, 13, 14, 23, 24, 25 and 26 of the chip U2 are connected to an electric quantity display module, and pins 15, 16, 17, 18, 21 and 22 of the chip U2 are connected to the battery voltage selection module. The utility model discloses an electricity meter for fork truck can wide voltage work, and an electricity meter can be used to 6 battery voltage parameters.
Description
Technical Field
The utility model belongs to the technical field of the last battery indicator of fork truck, concretely relates to coulometer for fork truck.
Background
Fuels such as petroleum are in great demand but have limited resources, and from the industrial revolution to today, mankind has consumed a large amount of fossil fuels, namely coal, oil and natural gas. In the traffic field, vehicles consume considerable oil within more than 100 years, and new energy vehicles become a necessary trend along with the development of science and technology, particularly pure electric vehicles.
The pure electric forklift replaces the fuel oil forklift to be necessary, the electric quantity of the battery of the pure electric forklift needs to be visually displayed, and therefore an electric quantity meter is required to be installed on the vehicle and used for displaying the remaining available electric quantity value of the battery. At present, various types of electricity meters exist in the market, the battery voltage is single, the electricity meters need to be divided into different models for corresponding to different battery voltages, and the electricity meters cannot work at wide voltage. The market kilowatt-hour meter is very inconvenient to use due to various models.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem that is used for fork truck's coulomb meter to solve above-mentioned, specifically adopts following technical scheme:
an electricity meter for a forklift comprising: the device comprises a power supply conversion system module, a battery voltage acquisition module, an MCU control module, a battery voltage selection module, an alarm output module and an electric quantity display module;
the power supply conversion system module is connected to the battery voltage acquisition module, the MCU control module, the battery voltage selection module, the alarm output module and the electric quantity display module to provide electric energy;
the MCU control module is also connected to the battery voltage acquisition module, the battery voltage selection module, the alarm output module and the electric quantity display module;
the MCU control module comprises an MCU control circuit;
the MCU control circuit includes: a chip U2 and a capacitor C5;
one end of a capacitor C5 is connected with VDD, the other end of the capacitor C5 is connected with a power supply cathode GND, the output of a No. 2 pin OUT of a chip U2 is connected to an alarm output module, the input of a No. 3 pin AD1 of the chip U2 is connected to a battery voltage selection module, the No. 8 and No. 19 pins of the chip U2 are connected to the power supply cathode GND, the No. 9, no. 10, no. 11, no. 12, no. 13, no. 14, no. 23, no. 24, no. 25 and No. 26 pins of the chip U2 are connected to an electric quantity display module, the No. 20 pin of the chip U2 is connected to VDD, and the No. 15, no. 16, no. 17, no. 18, no. 21 and No. 22 pins of the chip U2 are connected to the battery voltage selection module;
the power conversion system module comprises a power conversion system circuit;
the power conversion system circuit comprises: the circuit comprises a diode D1, a capacitor C2, a capacitor C3, a resistor R1, a capacitor R2, a capacitor R3 and a voltage stabilizing chip U3;
diode D1 anodal VCC that connects, diode D1 negative pole connecting resistance R1 and electric capacity C1, VDD is connected to the resistance R1 other end, electric capacity C1 other end connection power negative pole GND, VDD and other end connecting resistance R3 and voltage stabilizing chip U3 rd foot are connected to resistance R2 one end, power negative pole GND is connected to the resistance R3 other end, VDD and 2 nd foot connection power negative pole GND are connected to voltage stabilizing chip U3 st foot, VDD and other end all connect power negative pole GND are connected to electric capacity C2 and electric capacity C3's one end connection VDD.
Furthermore, the battery voltage acquisition module comprises a battery voltage acquisition circuit;
the battery voltage acquisition circuit includes: the resistor R4, the resistor R5, the resistor R6, the capacitor C4 and the diode D2;
VCC and other end connecting resistance R5 are connected to resistance R4 one end, and AD1 is connected to the resistance R5 other end, and AD1 and other end connection power negative pole GND are connected to resistance R6 one end, and AD1 and other end connection power negative pole GND are connected to electric capacity C4 one end, and VDD and anodal AD1 of connecting are connected to diode D2 negative pole.
Further, the battery voltage selection module comprises a battery voltage selection circuit;
the battery voltage selection circuit includes: the encoding switch SW1, the resistor R11, the resistor R12, the resistor R13, the resistor R14, the resistor R15 and the resistor R16;
the 0 th pin of the coding switch SW1 is connected with a power supply cathode GND, the 1 st pin connecting resistor R11 of the coding switch SW1, the 2 nd pin connecting resistor R12 of the coding switch SW1, the 3 rd pin connecting resistor R13 of the coding switch SW1, the 4 th pin connecting resistor R14 of the coding switch SW1, the 5 th pin connecting resistor R15 of the coding switch SW1, the 6 th pin connecting resistor R16 of the coding switch SW1, the 22 th pin of the chip U2 is connected with the other end of the resistor R11, the 21 st pin of the chip U2 is connected with the other end of the resistor R12, the 18 th pin of the chip U2 is connected with the other end of the resistor R13, the 17 th pin of the chip U2 is connected with the other end of the resistor R14, the 16 th pin of the chip U2 is connected with the other end of the resistor R15, and the other end of the resistor R16 is connected with S6.
Furthermore, the alarm output module comprises an alarm output circuit;
the alarm output circuit includes: the resistor R7, the resistor R8, the resistor R9 and the triode Q2;
chip U2's 2 feet and other end connecting resistance R8 and triode Q2 base are connected to resistance R7 one end, and the power negative pole GND is all connected to the resistance R8 other end and triode Q2 projecting pole, and VDD is connected to resistance R9 one end and triode Q2 projecting pole is connected to the other end, and triode Q2 projecting pole is connected to OP alarm output.
Furthermore, the electric quantity display module comprises an electric quantity display circuit;
the electric quantity display circuit includes: the LED comprises a resistor R10, a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a light emitting diode LED7, a light emitting diode LED8, a light emitting diode LED9 and a light emitting diode LED10;
the LED comprises a light-emitting diode LED1, a light-emitting diode LED2, a light-emitting diode LED3, a light-emitting diode LED4, a light-emitting diode LED5, a light-emitting diode LED6, a light-emitting diode LED7, a light-emitting diode LED8, a resistor R10 is connected with the anodes of the light-emitting diode LED9 and the light-emitting diode LED10, the other end of the resistor R10 is connected with VDD, the other end of the light-emitting diode LED1 is connected with a pin 9 of a chip U2, the other end of the light-emitting diode LED2 is connected with a pin 10 of the chip U2, the other end of the light-emitting diode LED3 is connected with a pin 11 of the chip U2, the other end of the light-emitting diode LED4 is connected with a pin 12 of the chip U2, the other end of the light-emitting diode LED5 is connected with a pin 13 of the chip U2, the other end of the light-emitting diode LED6 is connected with a pin 14 of the chip U2, the other end of the light-emitting diode LED7 is connected with a pin 26 of the chip U2, the other end of the light-emitting diode LED8 is connected with a pin 25 of the chip U2, the other end of the light-emitting diode LED9 is connected with a pin 24 of the chip U2, and the other end of the light-emitting diode LED10 is connected with a pin 23 of the chip U2.
Further, the voltage range of VCC is 8V-80V.
The utility model discloses an useful part lies in the coulometer that is used for fork truck that provides, but wide voltage work, and an coulometer can be used to 6 kinds of battery voltage parameters.
The utility model discloses an useful part still lies in the coulomb meter that is used for fork truck that provides, and the coding switch on the accessible coulomb meter carries out the battery voltage and selects, has low-power alarm output function simultaneously.
Drawings
Fig. 1 is a schematic diagram of an electricity meter for a forklift truck according to the present invention;
fig. 2 is a schematic diagram of the MCU control circuit of the present invention;
FIG. 3 is a schematic diagram of the power conversion system circuit of the present invention;
fig. 4 is a schematic diagram of a battery voltage acquisition circuit of the present invention;
fig. 5 is a schematic diagram of a battery voltage selection circuit of the present invention;
fig. 6 is a schematic diagram of an alarm output circuit of the present invention;
fig. 7 is a schematic diagram of the power display circuit of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows an electricity meter for a forklift according to the present application, which includes: the device comprises a power conversion system module, a battery voltage acquisition module, an MCU control module, a battery voltage selection module, an alarm output module and an electric quantity display module. The power conversion system module is connected to the battery voltage acquisition module, the MCU control module, the battery voltage selection module, the alarm output module and the electric quantity display module to provide electric energy. The MCU control module is also connected to the battery voltage acquisition module, the battery voltage selection module, the alarm output module and the electric quantity display module.
The MCU control module receives the information transmitted by the battery voltage acquisition module for acquisition and analysis, and then the MCU control module controls the electric quantity display module to display the electric quantity value. The MCU control module controls the alarm output module to output alarm signals, and in addition, the MCU control module receives information transmitted by the battery voltage selection module to perform acquisition and analysis, and then automatically selects corresponding battery voltage system software.
The above modules are described in detail below.
As shown in fig. 2, the MCU control module includes an MCU control circuit, which includes: chip U2 and capacitor C5. One end of a capacitor C5 is connected with VDD, the other end of the capacitor C5 is connected with a power supply cathode GND, the output of a No. 2 pin OUT of a chip U2 is connected to an alarm output module, the input of a No. 3 pin AD1 of the chip U2 is connected to a battery voltage selection module, the No. 8 and No. 19 pins of the chip U2 are connected to the power supply cathode GND, the No. 9, 10, 11, 12, 13, 14, 23, 24, 25 and 26 pins of the chip U2 are connected to an electric quantity display module, the No. 20 pin of the chip U2 is connected to VDD, and the No. 15, 16, 17, 18, 21 and 22 pins of the chip U2 are connected to the battery voltage selection module.
The MCU control module receives information transmitted by the battery voltage acquisition module through a 3 rd pin AD1 of the chip U2 to perform acquisition and analysis, then the conversion control is performed through the chip U2 to perform electric quantity value display from a pin 9, 10, 11, 12, 13, 14, 23, 24, 25 and 26 to the electric quantity display module, and the chip U2 to a pin OUT output control alarm output module to perform alarm signal output, in addition, the MCU control module receives the information transmitted by the battery voltage selection module through the chip U2 to perform acquisition and analysis, and then corresponding battery voltage system software is automatically selected.
As shown in fig. 3, the power conversion system module includes a power conversion system circuit. The power conversion system circuit comprises: diode D1, electric capacity C2, electric capacity C3, resistance R1, electric capacity R2, electric capacity R3 and voltage regulation chip U3. Diode D1 anodal VCC that connects, diode D1 negative pole connecting resistance R1 and electric capacity C1, VDD is connected to the resistance R1 other end, electric capacity C1 other end connection power negative pole GND, VDD and other end connecting resistance R3 and voltage stabilizing chip U3 rd foot are connected to resistance R2 one end, power negative pole GND is connected to the resistance R3 other end, VDD and 2 nd foot connection power negative pole GND are connected to voltage stabilizing chip U3 1 st foot, VDD and power negative pole GND are all connected to the other end to electric capacity C2 and electric capacity C3's one end connection VDD.
External input power VCC (8V-80V) passes through diode D1, resistance R1, R2, R3 to the power negative pole, also passes through voltage stabilizing chip to the power negative pole simultaneously, and voltage stabilizing chip U3 passes through resistance R2 and resistance R3 than the control, and the stabilized output VDD voltage, this mains voltage is used for battery voltage collection module, MCU control module, alarm output module and electric quantity display module power supply.
As shown in fig. 4, the battery voltage collecting module includes a battery voltage collecting circuit. The battery voltage acquisition circuit includes: resistor R4, resistor R5, resistor R6, capacitor C4 and diode D2. VCC and other end connecting resistance R5 are connected to resistance R4 one end, and AD1 is connected to the resistance R5 other end, and AD1 and other end connection power negative pole GND are connected to resistance R6 one end, and AD1 and other end connection power negative pole GND are connected to electric capacity C4 one end, and VDD and anodal connection AD1 are connected to diode D2 negative pole.
External input power VCC is through resistance R4, R5, R6 to the power negative pole, and input AD1 after the VCC voltage of power passes through resistance R4, R5, R6 partial pressure and is connected to MCU control module, and MCU control module gathers the voltage that AD1 transmitted, then output electric quantity value shows and the low warning of electric quantity.
As shown in fig. 5, the battery voltage selection module includes a battery voltage selection circuit. The battery voltage selection circuit includes: the circuit comprises an encoding switch SW1, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15 and a resistor R16. The 0 th pin of the coding switch SW1 is connected with a power supply cathode GND, the 1 st pin of the coding switch SW1 is connected with a resistor R11, the 2 nd pin of the coding switch SW1 is connected with a resistor R12, the 3 rd pin of the coding switch SW1 is connected with a resistor R13, the 4 th pin of the coding switch SW1 is connected with a resistor R14, the 5 th pin of the coding switch SW1 is connected with a resistor R15, the 6 th pin of the coding switch SW1 is connected with a resistor R16, the other end of the resistor R11 is connected with the 22 th pin of the chip U2, the other end of the resistor R12 is connected with the 21 st pin of the chip U2, the other end of the resistor R13 is connected with the 18 th pin of the chip U2, the other end of the resistor R14 is connected with the 17 th pin of the chip U2, the other end of the resistor R15 is connected with the 16 th pin of the chip U2, and the other end of the resistor R16 is connected with S6.
The encoder switch SW1 is rotated to the 0 position and will be in the off state. When the battery is rotated to the position 1, the coding switch 0 and the coding switch 1 are conducted, the power supply cathode GND is input to the MCU control module S1 interface through the resistor R11, and the MCU module identifies the automatic internal software processing and sets the automatic internal software processing as 12V battery system parameters. When the battery is rotated to the 2 position, 0 and 2 of the coding switch are conducted, the negative pole GND of the power supply is input to the S2 interface of the MCU control module through the resistor R12, and the MCU module identifies the automatic internal software processing and sets the automatic internal software processing as the 24V battery system parameters. When the battery is rotated to the 3 position, 0 and 3 of the coding switch are conducted, the negative pole GND of the power supply is input to an interface S3 of the MCU control module through a resistor R13, and the MCU module identifies automatic internal software processing and sets the automatic internal software processing as a 36V battery system parameter. When the battery is rotated to the 4 position, 0 and 4 of the coding switch are conducted, the negative pole GND of the power supply is input to an interface S4 of the MCU control module through a resistor R14, and the MCU module identifies automatic internal software processing and sets the automatic internal software processing as a 48V battery system parameter. When the battery is rotated to the 5 position, 0 and 5 of the coding switch are conducted, the negative pole GND of the power supply is input to an S5 interface of the MCU control module through a resistor R15, and the MCU module identifies the automatic internal software processing and sets the automatic internal software processing as the 60V battery system parameters. When the battery is rotated to the 6 positions, 0 and 6 of the coding switch are conducted, the power supply cathode GND is input to an MCU control module S6 interface through a resistor R16, and the MCU module identifies automatic internal software processing and sets the automatic internal software processing as a 72V battery system parameter.
As shown in fig. 6, the alarm output module includes an alarm output circuit. The alarm output circuit includes: resistance R7, resistance R8, resistance R9 and triode Q2. Chip U2's 2 feet and other end connecting resistance R8 and triode Q2 base are connected to resistance R7 one end, and the power negative pole GND is all connected to the resistance R8 other end and triode Q2 projecting pole, and VDD is connected to resistance R9 one end and triode Q2 projecting pole is connected to the other end, and triode Q2 projecting pole is connected to OP alarm output.
When the MCU control module receives voltage information of the battery voltage acquisition module and the software is processed to be in a low-power state, a high level is output to the resistor R7 through the OUT port, and then the triode Q2 is controlled to be conducted. At this time, the emitter and the collector of the triode Q2 are conducted, and the level of the OP output port is changed into the power supply cathode GND. Under the normal electric quantity non-low electric quantity state, through OUT port output low level to resistance R7, then control triode Q2, triode Q2 will be the off-state all the time, and VDD passes through resistance R9 and exports to the OP port this moment, and OP output port level will become VDD.
As shown in fig. 7, the power display module includes a power display circuit. The electric quantity display circuit includes: resistor R10, light emitting diode LED1, light emitting diode LED2, light emitting diode LED3, light emitting diode LED4, light emitting diode LED5, light emitting diode LED6, light emitting diode LED7, light emitting diode LED8, light emitting diode LED9, and light emitting diode LED10. The LED comprises a light-emitting diode LED1, a light-emitting diode LED2, a light-emitting diode LED3, a light-emitting diode LED4, a light-emitting diode LED5, a light-emitting diode LED6, a light-emitting diode LED7, a light-emitting diode LED8, a resistor R10 is connected with the anodes of the light-emitting diode LED9 and the light-emitting diode LED10, the other end of the resistor R10 is connected with VDD, the other end of the light-emitting diode LED1 is connected with a pin 9 of a chip U2, the other end of the light-emitting diode LED2 is connected with a pin 10 of the chip U2, the other end of the light-emitting diode LED3 is connected with a pin 11 of the chip U2, the other end of the light-emitting diode LED4 is connected with a pin 12 of the chip U2, the other end of the light-emitting diode LED5 is connected with a pin 13 of the chip U2, the other end of the light-emitting diode LED6 is connected with a pin 14 of the chip U2, the other end of the light-emitting diode LED7 is connected with a pin 26 of the chip U2, the other end of the light-emitting diode LED8 is connected with a pin 25 of the chip U2, the other end of the light-emitting diode LED9 is connected with a pin 24 of the chip U2, and the other end of the light-emitting diode LED10 is connected with a pin 23 of the chip U2.
Further, the voltage range of VCC is 8V-80V.
When the MCU control module receives voltage information of the battery voltage acquisition module, software processes and calculates a battery electric quantity value, then the electric quantity value is controlled to be displayed on the electric quantity display module through pins 9, 10, 11, 12, 13, 14, 23, 24, 25 and 26 of the MCU control module chip U2, and the light-emitting diode corresponding to the port output low level is lightened. When the power is lower than 20%, the MCU controls the U2 port of the module chip to output low level and other LED ports to output high level, and only the power of the LED2 is supplied at the moment.
The application provides an electricity meter for fork truck, but wide voltage work is between 8V-80V. The electricity meter for the forklift can be used for 6 battery voltage (12V, 24V, 36V, 48V, 60V and 72V) parameters, can be used for selecting the battery voltage through a coding switch on the electricity meter, and has a low-electricity alarm output function.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation modes fall within the protection scope of the present invention.
Claims (6)
1. An electricity meter for a forklift, comprising: the device comprises a power supply conversion system module, a battery voltage acquisition module, an MCU control module, a battery voltage selection module, an alarm output module and an electric quantity display module;
the power supply conversion system module is connected to the battery voltage acquisition module, the MCU control module, the battery voltage selection module, the alarm output module and the electric quantity display module to provide electric energy;
the MCU control module is also connected to the battery voltage acquisition module, the battery voltage selection module, the alarm output module and the electric quantity display module;
the MCU control module comprises an MCU control circuit;
the MCU control circuit includes: chip U2 and capacitor C5;
one end of the capacitor C5 is connected with VDD, the other end of the capacitor C5 is connected with a power supply cathode GND, the output of a No. 2 pin OUT of the chip U2 is connected with the alarm output module, the input of a No. 3 pin AD1 of the chip U2 is connected with the battery voltage selection module, the No. 8 and No. 19 pins of the chip U2 are connected with the power supply cathode GND, the No. 9, no. 10, no. 11, no. 12, no. 13, no. 14, no. 23, no. 24, no. 25 and No. 26 pins of the chip U2 are connected with the electric quantity display module, the No. 20 pin of the chip U2 is connected with VDD, and the No. 15, no. 16, no. 17, no. 18, no. 21 and No. 22 pins of the chip U2 are connected with the battery voltage selection module;
the power conversion system module comprises a power conversion system circuit;
the power conversion system circuit comprises: the circuit comprises a diode D1, a capacitor C2, a capacitor C3, a resistor R1, a capacitor R2, a capacitor R3 and a voltage stabilizing chip U3;
diode D1 anodal VCC that connects, diode D1 negative pole is connected resistance R1 with electric capacity C1, VDD is connected to the resistance R1 other end, power negative pole GND is connected to the electric capacity C1 other end, VDD and other end connection are connected to resistance R2 one end resistance R3 with voltage stabilizing chip U3 foot 3, power negative pole GND is connected to the resistance R3 other end, VDD and 2 nd foot connected power negative pole GND are connected to voltage stabilizing chip U3 foot 1, electric capacity C2 with VDD and other end are all connected to electric capacity C3's one end.
2. The electricity meter for a forklift according to claim 1,
the battery voltage acquisition module comprises a battery voltage acquisition circuit;
the battery voltage acquisition circuit includes: the resistor R4, the resistor R5, the resistor R6, the capacitor C4 and the diode D2;
VCC and other end connection are connected to resistance R4 one end resistance R5, AD1 is connected to the resistance R5 other end, AD1 and other end connection power negative pole GND are connected to resistance R6 one end, AD1 and other end connection power negative pole GND are connected to electric capacity C4 one end, VDD and anodal AD1 of connecting are connected to diode D2 negative pole.
3. The electricity meter for a forklift according to claim 2,
the battery voltage selection module comprises a battery voltage selection circuit;
the battery voltage selection circuit includes: the encoding switch SW1, the resistor R11, the resistor R12, the resistor R13, the resistor R14, the resistor R15 and the resistor R16;
the 0 th pin of the coding switch SW1 is connected with a power supply cathode GND, the 1 st pin of the coding switch SW1 is connected with the resistor R11, the 2 nd pin of the coding switch SW1 is connected with the resistor R12, the 3 rd pin of the coding switch SW1 is connected with the resistor R13, the 4 th pin of the coding switch SW1 is connected with the resistor R14, the 5 th pin of the coding switch SW1 is connected with the resistor R15, the 6 th pin of the coding switch SW1 is connected with the resistor R16, the other end of the resistor R11 is connected with the 22 pins of the chip U2, the other end of the resistor R12 is connected with the 21 pins of the chip U2, the other end of the resistor R13 is connected with the 18 pins of the chip U2, the other end of the resistor R14 is connected with the 17 pins of the chip U2, the other end of the resistor R15 is connected with the 16 pins of the chip U2, and the other end of the resistor R16 is connected with S6.
4. The electricity meter for a forklift according to claim 3,
the alarm output module comprises an alarm output circuit;
the alarm output circuit includes: the resistor R7, the resistor R8, the resistor R9 and the triode Q2;
resistance R7 one end is connected 2 feet and the other end of chip U2 are connected resistance R8 with triode Q2 base, the resistance R8 other end with triode Q2 projecting pole all connects power negative pole GND, VDD is connected to resistance R9 one end and triode Q2 projecting pole is connected to the other end, triode Q2 projecting pole is connected to OP alarm output.
5. The electricity meter for a forklift according to claim 4,
the electric quantity display module comprises an electric quantity display circuit;
the electric quantity display circuit includes: the LED lamp comprises a resistor R10, a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a light emitting diode LED7, a light emitting diode LED8, a light emitting diode LED9 and a light emitting diode LED10;
the LED comprises a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a light emitting diode LED7, a light emitting diode LED8, a light emitting diode LED9 and a light emitting diode LED10, wherein the anodes of the light emitting diode LED5 and the light emitting diode LED8 are connected with a resistor R10, the other end of the resistor R10 is connected with a VDD, the other end of the light emitting diode LED1 is connected to a pin 9 of a chip U2, the other end of the light emitting diode LED2 is connected to a pin 10 of the chip U2, the other end of the light emitting diode LED3 is connected to a pin 11 of the chip U2, the other end of the light emitting diode LED4 is connected to a pin 12 of the chip U2, the other end of the light emitting diode LED5 is connected to a pin 13 of the chip U2, the other end of the light emitting diode LED6 is connected to a pin 14 of the chip U2, the other end of the light emitting diode LED7 is connected to a pin 26 of the chip U2, the other end of the light emitting diode LED8 is connected to a pin 25 of the chip U2, the light emitting diode LED9 is connected to a pin 24 of the chip U2, and the other end of the LED10 is connected to a chip U23.
6. The electricity meter for a forklift according to claim 1,
the voltage range of VCC is 8V-80V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711205.7U CN217739417U (en) | 2022-06-28 | 2022-06-28 | A coulometer for fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711205.7U CN217739417U (en) | 2022-06-28 | 2022-06-28 | A coulometer for fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217739417U true CN217739417U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221711205.7U Active CN217739417U (en) | 2022-06-28 | 2022-06-28 | A coulometer for fork truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217739417U (en) |
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2022
- 2022-06-28 CN CN202221711205.7U patent/CN217739417U/en active Active
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