CN218158107U - Voltage and current acquisition system for automobile lamp - Google Patents
Voltage and current acquisition system for automobile lamp Download PDFInfo
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- CN218158107U CN218158107U CN202222574884.4U CN202222574884U CN218158107U CN 218158107 U CN218158107 U CN 218158107U CN 202222574884 U CN202222574884 U CN 202222574884U CN 218158107 U CN218158107 U CN 218158107U
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Abstract
The utility model relates to a car light technical field especially relates to a car light voltage current collection system, include: the output end of the power supply module is electrically connected with the input end of the vehicle lamp to be detected; the output end of the vehicle lamp to be detected is electrically connected with the input end of the current detection conversion module; the output end of the current detection conversion module is electrically connected with the input end of the data acquisition module, and the output end of the power supply module is electrically connected with the input end of the data acquisition module; the output end of the data acquisition module is electrically connected with the storage module; the power module, the current detection conversion module, the data acquisition module and the storage module are all arranged on the rack. The utility model discloses a car light voltage electric current collection system, voltage electric current detect integrated in a frame, can gather in the voltage electric current of an organic whole car light, and be convenient for remove, are convenient for carry out the witnessed inspections.
Description
Technical Field
The utility model relates to a car light technical field especially relates to a car light voltage current collection system.
Background
With the continuous development of the automobile industry, the requirements for electronic parts on automobiles are higher and higher. The existence of car light as car eyes is the same, need carry out a large amount of experiments, test to verify the stability of car light, reliability and car light whether all kinds of operating modes that the car light produced in the use arouse the car light to become invalid. The voltage and the current are key parameters for detection, and the state of the vehicle lamp can be clearly indicated.
However, current and voltage detection of the existing vehicle lamp needs to be separately detected, and is mainly completed on a detection table, and the detection table is fixed in position, inconvenient to move and inconvenient to detect on site.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the technical problem that in the prior art, a vehicle lamp current and voltage detection table is fixed in position and inconvenient to detect on site is solved. The utility model provides a car light voltage current collection system, voltage current detect integrated in a frame, can gather in the voltage current of an organic whole car light, and be convenient for remove, be convenient for carry out the witnessed inspections. The utility model provides a technical scheme that its technical problem adopted is: an automobile lamp voltage and current acquisition system, comprising:
the output end of the power supply module is electrically connected with the input end of the vehicle lamp to be detected; the output end of the vehicle lamp to be detected is electrically connected with the input end of the current detection conversion module; the output end of the current detection conversion module is electrically connected with the input end of the data acquisition module, and the output end of the power supply module is electrically connected with the input end of the data acquisition module; the output end of the data acquisition module is electrically connected with the storage module; the power module, the current detection conversion module, the data acquisition module and the storage module are all arranged on the rack.
Further, the current detection conversion module includes: a current detection circuit, the current detection circuit comprising:
the input end of the reverse connection preventing and filtering circuit is connected to the power supply module by being connected to the vehicle lamp to be detected; the output end of the anti-reverse connection and filter circuit is electrically connected with the input end of the voltage stabilizing circuit; and the output end of the voltage stabilizing circuit is electrically connected with the input end of the work indicator lamp.
Further, the reverse connection preventing and filtering circuit comprises: diode D1, electric capacity C6 and electric capacity C7, the anodal power of connecting of diode D1, the one end of electric capacity C6 and C7 is connected to diode D1's negative pole, and electric capacity C6 and electric capacity C7's the other end ground connection, voltage stabilizing circuit includes: m1 chip, electric capacity C4, electric capacity C5 and resistance R2, the negative pole at diode D1 is all connected to the first pin and the second pin of M1 chip, and the one end of VS end, electric capacity C4, electric capacity C5 and resistance R2 is connected to the third pin of M1 chip, and electric capacity C4 and electric capacity C5's other end ground connection, work pilot lamp includes: the positive electrodes of L1 and L1 are connected to the other end of the resistor R2, and the negative electrode of L1 is grounded.
Further, the current detection conversion module further includes: a plurality of current conversion circuits, each current conversion circuit comprising:
a shunt circuit that inputs a current signal; the output end of the current divider circuit is connected with the input end of the current conversion voltage circuit, the output end of the voltage stabilizing circuit is electrically connected with the input end of the current conversion voltage circuit, and the current conversion voltage circuit outputs a voltage signal.
Further, the current divider circuit includes: shunt resistance, shunt resistance input port CH1+, CH 1-connect respectively at shunt resistance's first pin and second pin, still are connected with Fuse between CH 1-and shunt resistance's the second pin, and current conversion voltage circuit includes: the M2 chip, the third pin of shunt resistance is connected to the second pin of M2 chip, the fourth pin of shunt resistance is connected to the third pin of M2 chip, the fourth pin ground connection of M2 chip, the fifth pin of M2 chip connects VS end and the one end of electric capacity C2, the other end ground connection of electric capacity C2, the sixth pin and the seventh pin of M2 chip all ground, the eighth pin connecting resistance R1 and the one end of electric capacity C1 of M2 chip, the other end ground connection of electric capacity C1, the other end of resistance R9 is output port CHOUT, output voltage signal.
Optionally, the plurality of current conversion circuits comprises: the first current conversion circuit collects the current below 1A, wherein the resistance value of the shunt resistor is 50m omega, the precision is 1%, the power is 2W, and the temperature coefficient is +/-75 ppm/DEG C.
Optionally, the plurality of current conversion circuits comprises: and the second current conversion circuit is used for collecting the current below 10A, wherein the resistance value of the resistor of the current divider is 5m omega, the precision is 1 percent, the power is 2W, and the temperature coefficient is +/-100 ppm/DEG C.
Optionally, the plurality of current conversion circuits comprises: a third current conversion circuit for collecting current below 20A, wherein the resistance of the resistor of the current divider is 2.5m Ω, the precision is 1%, the power is 2W, and the temperature coefficient is + -100 ppm/° C
Optionally, the voltage and current collecting system for the vehicle lamp further comprises: the display module is connected with the output end of the data acquisition module, and the display module is arranged on the rack.
Specifically, the model of the M1 chip is TPS7B6950-4, and the model of the M2 chip is INA240.
The beneficial effects of the utility model are that, the utility model discloses a car light voltage current collection system through with the detection, the storage and the demonstration integration of voltage, electric current in a frame, is convenient for gather in an organic whole voltage, the electric current of car light, is convenient for remove, and the on-the-spot measuring of being convenient for through setting up a plurality of current conversion circuits, and the scope of collecting current is different, can select current conversion circuit according to the size of electric current, increases the precision that detects.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a block diagram of a voltage and current collecting system for an automobile lamp according to the present invention;
fig. 2 is a schematic diagram of a current detection and conversion module of the present invention;
fig. 3 is a circuit diagram of the current detection circuit of the present invention;
fig. 4 is a current converting circuit of the present invention;
fig. 5 is a schematic structural diagram of the voltage and current collecting system of the car lamp of the present invention.
In the figure:
100. a frame; 1. a power supply module; 2. detecting a car lamp to be detected; 3. a current detection conversion module; 31. a current detection circuit; 311. an anti-reverse connection and filter circuit; 312. a voltage stabilizing circuit; 313. a work indicator light; 32. a current conversion circuit; 321. a current divider circuit; 322. a current-to-voltage circuit; 4. a data acquisition module; 5. a storage module; 6. and a display module.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 5, an automobile lamp voltage and current collecting system includes: power module 1, current detection conversion module 3, data acquisition module 4 and storage module 5, power module 1's output and the input electricity of waiting to detect car light 2 are connected, power in power module 1 adopts japanese chrysanthemum water PBZ40-10 model, the output of waiting to detect car light 2 is connected with the input electricity of current detection conversion module 3, the output of current detection conversion module 3 is connected with the input electricity of data acquisition module 4, and power module 1's output and data acquisition module 4's input electricity are connected, the output of data acquisition module 4 is connected with storage module 5 electricity, the collector in data acquisition module 4 adopts japanese picture GL8000, power module 1, current detection conversion module 3, data acquisition module 4 and storage module 5 all set up in frame 100.
As shown in fig. 2 to 4, the current detection conversion module 3 includes: a current detection circuit 31 and a plurality of current conversion circuits 32, wherein the current detection circuit 31 includes: the anti-reverse connection type automobile lamp voltage stabilizing circuit comprises an anti-reverse connection type filter circuit 311, a voltage stabilizing circuit 312 and a work indicator lamp 313, wherein the input end of the anti-reverse connection type filter circuit 311 is connected to a power supply module 1 through a vehicle lamp 2 to be detected, the output end of the anti-reverse connection type filter circuit 311 is electrically connected with the input end of the voltage stabilizing circuit 312, the anti-reverse connection type filter circuit 311 filters a power supply at the input end of the voltage stabilizing circuit 312 to prevent interference waveforms from entering the voltage stabilizing circuit 312 at the rear stage, the output end of the voltage stabilizing circuit 312 is electrically connected with the input end of the work indicator lamp 313, and the voltage stabilizing circuit 312 supplies power to the work indicator lamp 313 and the current conversion circuit 32 respectively.
According to an embodiment of the present invention, as shown in fig. 3, the reverse connection preventing and filtering circuit 311 includes: diode D1, electric capacity C6 and electric capacity C7, the anodal power of connecting of diode D1, the one end of electric capacity C6 and C7 is connected to diode D1's negative pole, and electric capacity C6 and electric capacity C7's other end ground connection, voltage stabilizing circuit 312 includes: m1 chip, electric capacity C4, electric capacity C5 and resistance R2, the negative pole at diode D1 is all connected to the first pin and the second pin of M1 chip, and the one end of VS end, electric capacity C4, electric capacity C5 and resistance R2 is connected to the third pin of M1 chip, and electric capacity C4 and electric capacity C5's the other end ground connection, work pilot lamp 313 includes: the positive electrodes of the L1 and the L1 are connected with the other end of the resistor R2, the negative electrode of the L1 is grounded, and the model number of the M1 chip is TPS7B6950-4.
According to an embodiment of the present invention, each current conversion circuit 32 includes: the current divider circuit 321 inputs a current signal, an output end of the current divider circuit 321 is connected with an input end of the current divider circuit 322, an output end of the voltage stabilizing circuit 312 is electrically connected with an input end of the current divider circuit 322, and the current divider circuit 322 outputs a voltage signal.
Specifically, as shown in fig. 4, the shunt circuit 321 includes: shunt resistance, shunt resistance input port CH1+, CH 1-connect respectively at shunt resistance's first pin and second pin, still are connected with Fuse between CH 1-and shunt resistance's the second pin, and current conversion voltage circuit 322 includes: the M2 chip, the third pin of shunt resistance is connected to the second pin of M2 chip, the fourth pin of shunt resistance is connected to the third pin of M2 chip, the fourth pin of M2 chip ground connection, the fifth pin of M2 chip connects VS end and the one end of electric capacity C2, the other end ground connection of electric capacity C2, the sixth pin and the seventh pin of M2 chip all ground connection, the eighth pin of M2 chip connecting resistance R1 and the one end of electric capacity C1, the other end ground connection of electric capacity C1, the other end of resistance R9 is output port CHOUT, output voltage signal, the M2 chip model is INA240.
Shunt resistance input port CH1+, CH 1-pass through shunt resistance, with two data through current conversion voltage circuit 322 with signal amplification processing to convert current signal into voltage signal, gather through data acquisition module 4.
According to an embodiment of the present invention, a plurality of current conversion circuits 32 include: the first current conversion circuit collects the current below 1A, wherein the resistance value of the resistor of the current divider is 50m omega, the precision is 1%, the power is 2W, the temperature coefficient is +/-75 ppm/DEG C, and the current conversion voltage circuit 322 amplifies the current output signal by 100 times through the sampling chip and outputs the amplified signal (0-1A corresponds to 0-5V).
According to an embodiment of the present invention, a plurality of current conversion circuits 32 include: and the second current conversion circuit is used for collecting the current below 10A, wherein the resistance value of the resistor of the current divider is 5m omega, the precision is 1%, the power is 2W, the temperature coefficient is +/-100 ppm/DEG C, and the current conversion voltage circuit 322 is used for amplifying the current output signal by 100 times through the sampling chip and then outputting the amplified signal (0-10A corresponds to 0-5V).
According to an embodiment of the present invention, a plurality of current conversion circuits 32 include: and the third current conversion circuit is used for collecting the current below 20A, wherein the resistance of the resistor of the current divider is 2.5m omega, the precision is 1%, the power is 2W, the temperature coefficient is +/-100 ppm/DEG C, and the current conversion voltage circuit 322 is used for amplifying the current output signal by 100 times through the sampling chip and outputting the amplified signal (0-20A corresponds to 0-5V).
The utility model discloses a car light voltage current collection system still includes: and the display module 6 is connected with the output end of the data acquisition module 4, and the display module 6 is arranged on the rack 100.
To sum up, the utility model discloses a car light voltage current collection system through with voltage, the detection of electric current, storage and demonstration integration in a frame, is convenient for gather in an organic whole voltage, the electric current of car light, is convenient for remove, and the on-the-spot measuring of being convenient for through setting up a plurality of current conversion circuit, and the scope of collecting current is different, can select current conversion circuit according to the size of electric current, increases the precision that detects.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined in accordance with the scope of the claims.
Claims (10)
1. The utility model provides an automobile lamp voltage current collection system which characterized in that includes:
the output end of the power supply module (1) is electrically connected with the input end of the vehicle lamp (2) to be detected;
the output end of the vehicle lamp (2) to be detected is electrically connected with the input end of the current detection conversion module (3);
the output end of the current detection conversion module (3) is electrically connected with the input end of the data acquisition module (4), and the output end of the power supply module (1) is electrically connected with the input end of the data acquisition module (4);
the output end of the data acquisition module (4) is electrically connected with the storage module (5);
the power module (1), the current detection conversion module (3), the data acquisition module (4) and the storage module (5) are all arranged on the rack (100).
2. The system for collecting voltage and current of vehicle lamp according to claim 1, wherein the current detection converting module (3) comprises:
a current detection circuit (31), the current detection circuit (31) comprising:
the anti-reverse-connection and filter circuit (311), wherein the input end of the anti-reverse-connection and filter circuit (311) is connected to the power module (1) by being connected to the vehicle lamp (2) to be detected;
the voltage stabilizing circuit (312), the output end of the anti-reverse connection and filter circuit (311) is electrically connected with the input end of the voltage stabilizing circuit (312);
and the output end of the voltage stabilizing circuit (312) is electrically connected with the input end of the working indicator lamp (313).
3. The system for collecting voltage and current of vehicle lamp according to claim 2, wherein said reverse connection preventing filter circuit (311) comprises: diode D1, electric capacity C6 and electric capacity C7, the anodal power of connecting of diode D1, the one end of electric capacity C6 and C7 is connected to diode D1's negative pole, and the other end ground connection of electric capacity C6 and electric capacity C7, voltage stabilizing circuit (312) includes: m1 chip, electric capacity C4, electric capacity C5 and resistance R2, the negative pole at diode D1 is all connected to the first pin and the second pin of M1 chip, and the one end of VS end, electric capacity C4, electric capacity C5 and resistance R2 is connected to the third pin of M1 chip, and electric capacity C4 and electric capacity C5's the other end ground connection, work pilot lamp (313) include: the positive electrodes of L1 and L1 are connected with the other end of the resistor R2, and the negative electrode of L1 is grounded.
4. The vehicle lamp voltage current collection system according to claim 3, wherein the current detection conversion module (3) further comprises:
a plurality of current conversion circuits (32), each current conversion circuit (32) comprising:
a shunt circuit (321), the shunt circuit (321) inputting a current signal;
the output end of the current divider circuit (321) is connected with the input end of the current conversion voltage circuit (322), the output end of the voltage stabilizing circuit (312) is electrically connected with the input end of the current conversion voltage circuit (322), and the current conversion voltage circuit (322) outputs a voltage signal.
5. The vehicle lamp voltage current collection system according to claim 4, wherein the shunt circuit (321) comprises: shunt resistance, shunt resistance input port CH1+, CH 1-connect respectively at shunt resistance's first pin and second pin, still be connected with Fuse between CH 1-and shunt resistance's the second pin, and current conversion voltage circuit (322) include: the M2 chip, the second pin of M2 chip connects the third pin of shunt resistance, the fourth pin of shunt resistance is connected to the third pin of M2 chip, the fourth pin of M2 chip ground connection, the fifth pin of M2 chip connects VS end and the one end of electric capacity C2, the other end ground connection of electric capacity C2, the sixth pin and the seventh pin of M2 chip all ground connection, the eighth pin of M2 chip connects the one end of resistance R1 and electric capacity C1, the other end ground connection of electric capacity C1, the other end of resistance R9 is output port CHOUT, output voltage signal.
6. The vehicle lamp voltage current collection system according to claim 5, wherein said plurality of current conversion circuits (32) comprises: the first current conversion circuit collects the current below 1A, wherein the resistance value of the resistor of the current divider is 50m omega, the power is 2W, and the temperature coefficient is +/-75 ppm/DEG C.
7. The vehicle lamp voltage current collection system according to claim 5, wherein said plurality of current conversion circuits (32) comprises: and the second current conversion circuit is used for collecting the current below 10A, wherein the resistance value of the resistor of the current divider is 5m omega, the power is 2W, and the temperature coefficient is +/-100 ppm/DEG C.
8. The vehicle lamp voltage current collection system according to claim 5, wherein said plurality of current conversion circuits (32) comprises: and the third current conversion circuit collects the current below 20A, wherein the resistance of the resistor of the current divider is 2.5m omega, the power is 2W, and the temperature coefficient is +/-100 ppm/DEG C.
9. The vehicle lamp voltage current collection system according to claim 1, further comprising: the display module (6), the display module (6) is connected the output of data acquisition module (4), display module (6) set up in frame (100).
10. The voltage and current collection system of claim 5, wherein the model number of the M1 chip is TPS7B6950-4, and the model number of the M2 chip is INA240.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574884.4U CN218158107U (en) | 2022-09-28 | 2022-09-28 | Voltage and current acquisition system for automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574884.4U CN218158107U (en) | 2022-09-28 | 2022-09-28 | Voltage and current acquisition system for automobile lamp |
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| Publication Number | Publication Date |
|---|---|
| CN218158107U true CN218158107U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222574884.4U Active CN218158107U (en) | 2022-09-28 | 2022-09-28 | Voltage and current acquisition system for automobile lamp |
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| Country | Link |
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| CN (1) | CN218158107U (en) |
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- 2022-09-28 CN CN202222574884.4U patent/CN218158107U/en active Active
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