CN213689921U - Ammeter durability test device - Google Patents
Ammeter durability test device Download PDFInfo
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- CN213689921U CN213689921U CN202022245601.2U CN202022245601U CN213689921U CN 213689921 U CN213689921 U CN 213689921U CN 202022245601 U CN202022245601 U CN 202022245601U CN 213689921 U CN213689921 U CN 213689921U
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Abstract
The utility model discloses an ammeter durability test device for detect the durability of electric energy meter, including power amplifier, error screen, string table frame, signal source and clock appearance, the signal source is passed through all the way power amplifier with install in a plurality of electric energy meter electrical connection of hanging the table frame and signal source another way through the standard table with install in a plurality of error appearance electric connection of error screen, the clock appearance with error appearance electric connection, the electric energy meter with error appearance one-to-one electric connection. The utility model discloses an ammeter durability test device, it can have the reactive combination table to carry out simultaneously in the process of the test and have reactive error measurement, so not only the time of having practiced thrift, improved detection efficiency, still make the detection data continuous, improve detection quality.
Description
Technical Field
The utility model belongs to the technical field of the durable detection of ammeter, concretely relates to ammeter durability test device.
Background
Since 2010, the national grid company has called the intelligent meter on a large scale, the intelligent electric energy meter can be widely applied and popularized, meanwhile, the quality problem is also widely concerned by various social circles, and the intelligent electric energy meter has the advantages of multiple functions, high precision, sensitivity, remote meter reading and the like. However, the running environment of the electric energy meter is complex, the quantity of the electric energy meter is large, the service life of electronic components is short, and the electric energy meter is easily interfered by the outside, so that the probability of faults in running is high. The national standardization regulatory Committee thus issued, on 29/8/2016, part 321 of GB/T17215.9321-2016 electric measuring device credibility: durability-stability of the metering characteristics at elevated temperatures test "". Durability refers to the "ability of the meter to ensure its performance characteristics in use".
According to relevant national and international standards, the electric energy meter product has a service life of at least 6 years, and the durability of the whole meter and parts is sufficient. The durability-stability test of the metering characteristics at high temperature can simulate the harshest environment, detect the design defects of the product in advance, and reduce the risks of warranty repair, loss compensation and the like caused by the design defects to the maximum extent. The durability verification test is of great significance for effectively controlling and finding the quality defects of the products as soon as possible no matter in the early stage of development or mass production of the parts and components.
The existing three-phase intelligent meters have active and reactive measurement functions, when the durability test is carried out, the power factor is adjusted to cos phi 0.866L, and the active and reactive error tests are simultaneously carried out in the state. However, the conventional electric energy meter checking device can only perform one error type test at the same time. If the durability test is carried out on the measurement performance of the active power and the reactive power, the test time is doubled. If the standard table pulse output is set and the error processor is switched to test discontinuously, test data are discontinuous inevitably, and the standard test requirements cannot be met. Therefore, the testing device needs to adopt a novel standard meter with reactive output and an error processor capable of sampling reactive signals simultaneously, and can carry out active and reactive error tests at the same time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an ammeter durability test device, it can have the reactive combination table to carry out simultaneously in the process of the test and have reactive error measurement, has so not only practiced thrift the time, has improved detection efficiency, still makes the detection data continuous, improves detection quality.
Another object of the utility model is to provide an ammeter durability test device, it still adopts the increase fin at power amplifier, increases the mode of independent fan on every fin, and voltage electric current separates, increases the fan around, forms the wind channel.
Another aim at provides the ammeter durability test device, carries out the error test at the error gauge (preferably chooses for use STM32F103 singlechip), contrasts standard active electric energy pulse and quilt survey active electric energy pulse in the test, contrasts standard reactive electric energy pulse and quilt survey reactive electric energy pulse, contrasts standard clock pulse and quilt time measuring clock pulse.
In order to achieve the above object, the utility model provides an ammeter durability test device for detect the durability of electric energy meter, including power source amplifier, error screen, string table frame, signal source and clock appearance, wherein:
one path of the signal source is electrically connected with a plurality of electric energy meters arranged on the meter hanging frame through the power source amplifier, the other path of the signal source is electrically connected with a plurality of error meters arranged on the error screen through a standard meter, the clock meters are electrically connected with the error meters, and the electric energy meters are electrically connected with the error meters in a one-to-one correspondence manner;
the meter hanging frame comprises a main body and a base, the main body is fixedly connected with the base, and the electric energy meter is fixedly mounted on the main body;
the error meter comprises a control module and a display module, wherein the control module is electrically connected with the display module.
As a further preferable technical solution of the above technical solution, the control module includes a controller U1 and a communication unit circuit, and the communication unit circuit is electrically connected to the controller U1.
As a further preferable technical solution of the above technical solution, the communication unit includes a communication chip U11, a pin 1 of the communication chip U11 is electrically connected to a pin 2 of a photocoupler IC1 through a diode D2, a pin 1 of the photocoupler IC1 is electrically connected to a power supply (+5V) through a resistor R9, and a pin 4 of the photocoupler IC1 is electrically connected to a pin 26 of the controller U1;
the 4 pins of the communication chip U11 are electrically connected with the 4 pins of a photoelectric coupler IC2, a resistor R13 is connected in series between the 4 pins and the 6 pins of the photoelectric coupler IC2, a 6-housekeeper power supply (+5V) of the photoelectric coupler IC2 is connected, the 2 pins of the photoelectric coupler IC2 are electrically connected with the 25 pins of the controller U1, and the 1 pin of the photoelectric coupler IC2 is connected with the power supply (+3.3V) through the resistor R12.
As a further preferable technical solution of the above technical solution, one path of the 2-pin of the communication chip U11 is electrically connected to a power supply (+5V) through a resistor R14, the other path of the 2-pin of the communication chip U11 is electrically connected to a collector of a transistor N3, and a base of the transistor N3 is electrically connected to a 4-pin of the photocoupler IC2 through a resistor R15.
As a further preferable technical solution of the above technical solution, the display module includes a transceiver unit circuit, a decoder unit circuit and a display unit circuit, the transceiver unit circuit and the decoder unit circuit are respectively electrically connected to the controller U1, and the display unit circuit is respectively electrically connected to the decoder unit circuit and the transceiver unit circuit.
As a further preferable technical solution of the above technical solution, the transceiver unit circuit includes a transceiver U5, the 2 pin of the transceiver U5 is electrically connected to the 46 pin of the controller U1, the 3 pin of the transceiver U5 is electrically connected to the 45 pin of the controller U1, and the 4 pin of the transceiver U5 is electrically connected to the 44 pin of the controller U1 (specifically, as shown in fig. 3A).
As a further preferable technical solution of the above technical solution, the decoder unit circuit includes a decoder U6, a pin 1 of the decoder U6 is electrically connected to a pin 53 of the controller U1, a pin 2 of the decoder U6 is electrically connected to a pin 52 of the controller U1, and a pin 3 of the decoder U6 is electrically connected to a pin 51 of the controller U1 (specifically, as shown in fig. 3B).
As a further preferable aspect of the above-described aspects, the display unit circuit includes an LED unit (the LED unit includes an LED8_1, an LED8_2, an LED8_3, and an LED8_4 shown in fig. 4, not representing only four).
As a further preferable mode of the above mode, the power amplifier is provided with a plurality of heat radiating fins.
Drawings
Fig. 1 is a circuit diagram of a controller U1 of a control module of an electricity meter durability test device according to the present invention.
Fig. 2 is a circuit diagram of a communication unit of a control module of the electric meter durability test device of the present invention.
Fig. 3A is a circuit diagram of a transceiver unit of a display module of the electric meter durability testing apparatus according to the present invention.
Fig. 3B is a circuit diagram of a decoder unit of a display module of the electric meter durability test device according to the present invention.
Fig. 4 is a circuit diagram of a display unit of a display module of the electric meter durability test device of the present invention.
Fig. 5 is a schematic diagram of a structure of a meter hanging frame of the electric meter durability test device of the present invention.
Fig. 6 is a schematic structural diagram of the durability test device for the electric meter according to the present invention.
Fig. 7 is a schematic diagram of the (active, reactive and clock) detection structure of the durability testing apparatus for electric meters according to the present invention.
The reference numerals include: 10. a meter hanging frame; 11. a main body; 12. a base; 20. an electric energy meter.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
The utility model discloses an ammeter durability test device combines preferred embodiment below, further describes utility model's concrete embodiment.
Referring to fig. 1 of the drawings, fig. 1 is a circuit diagram of a controller U1 of a control module of an electricity meter durability testing apparatus according to the present invention, FIG. 2 is a circuit diagram of a communication unit of a control module of the durability testing apparatus for electricity meters according to the present invention, FIG. 3A is a circuit diagram of a transceiver unit of a display module of the durability testing apparatus for electric meters according to the present invention, FIG. 3B is a circuit diagram of a decoder unit of a display module of the durability testing apparatus for electric meters according to the present invention, FIG. 4 is a circuit diagram of a display unit of a display module of the durability testing apparatus for electric meters according to the present invention, FIG. 5 is a schematic view of a structure of a meter hanging rack of the electric meter durability testing device of the present invention, FIG. 6 is a schematic view of a structure of the electric meter durability testing device of the present invention, fig. 7 is a schematic diagram of the (active, reactive and clock) detection structure of the durability testing apparatus for electric meters according to the present invention.
In the embodiments of the present invention, those skilled in the art will note that the signal source, PC computer, clock, etc. of the present invention can be regarded as the prior art.
PREFERRED EMBODIMENTS
The utility model discloses an ammeter durability test device for detect the durability of electric energy meter, including power source amplifier, error screen, string table frame 10, signal source and clock appearance, wherein:
one path of the signal source is electrically connected with a plurality of electric energy meters arranged on the meter hanging frame through the power source amplifier, the other path of the signal source is electrically connected with a plurality of error meters arranged on the error screen through a standard meter, the clock meters are electrically connected with the error meters, and the electric energy meters and the error meters are electrically connected in a one-to-one correspondence manner (error testing is carried out on the error meters (preferably, an STM32F103 single chip microcomputer is selected), standard active electric energy pulses and tested active electric energy pulses are compared in testing, standard reactive electric energy pulses and tested reactive electric energy pulses are compared, and the standard clock pulses and the tested clock pulses are compared);
the meter hanging frame 10 comprises a main body 11 and a base 12, wherein the main body 11 is fixedly connected with the base 12, and the electric energy meter 20 is fixedly installed on the main body 11;
the error meter comprises a control module and a display module, wherein the control module is electrically connected with the display module.
Specifically, the control module comprises a controller U1 and a communication unit circuit, and the communication unit circuit is electrically connected with the controller U1.
More specifically, the communication unit comprises a communication chip U11, wherein a pin 1 of the communication chip U11 is electrically connected with a pin 2 of a photoelectric coupler IC1 through a diode D2, a pin 1 of the photoelectric coupler IC1 is electrically connected with a power supply (+5V) through a resistor R9, and a pin 4 of the photoelectric coupler IC1 is electrically connected with a pin 26 of the controller U1;
the 4 pins of the communication chip U11 are electrically connected with the 4 pins of a photoelectric coupler IC2, a resistor R13 is connected in series between the 4 pins and the 6 pins of the photoelectric coupler IC2, a 6-housekeeper power supply (+5V) of the photoelectric coupler IC2 is connected, the 2 pins of the photoelectric coupler IC2 are electrically connected with the 25 pins of the controller U1, and the 1 pin of the photoelectric coupler IC2 is connected with the power supply (+3.3V) through the resistor R12.
Furthermore, one path of the 2-pin of the communication chip U11 is electrically connected to a power supply (+5V) through a resistor R14, the other path of the 2-pin of the communication chip U11 is electrically connected to a collector of a transistor N3, and a base of the transistor N3 is electrically connected to a 4-pin of the photocoupler IC2 through a resistor R15.
Furthermore, the display module comprises a transceiver unit circuit, a decoder unit circuit and a display unit circuit, wherein the transceiver unit circuit and the decoder unit circuit are respectively and electrically connected with the controller U1, and the display unit circuit is respectively and electrically connected with the decoder unit circuit and the transceiver unit circuit.
Preferably, the transceiver unit circuit includes a transceiver U5, the 2 pin of the transceiver U5 is electrically connected to the 46 pin of the controller U1, the 3 pin of the transceiver U5 is electrically connected to the 45 pin of the controller U1, and the 4 pin of the transceiver U5 is electrically connected to the 44 pin of the controller U1 (as shown in fig. 3A in particular).
Preferably, the decoder unit circuit includes a decoder U6, a pin 1 of the decoder U6 is electrically connected to a pin 53 of the controller U1, a pin 2 of the decoder U6 is electrically connected to a pin 52 of the controller U1, and a pin 3 of the decoder U6 is electrically connected to a pin 51 of the controller U1 (specifically, as shown in fig. 3B).
Preferably, the display unit circuit includes an LED unit (the LED unit includes an LED8_1, an LED8_2, an LED8_3, and an LED8_4 shown in fig. 4, not representing only four).
Preferably, the power amplifier is mounted with a plurality of heat sinks.
Preferably, the meter hanging frame is electrically connected with a PC computer through a bus 485.
It is worth mentioning that the technical features of the signal source, the PC computer, the clock instrument and the like that the patent application relates to should be regarded as the prior art, and the specific structure, the operating principle of these technical features and the control mode, the spatial arrangement mode that may involve adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model is in, the utility model discloses a do not do further specifically expand the detailed description.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides an ammeter durability test device for detect the durability of electric energy meter, its characterized in that includes power source amplifier, error screen, string table frame, signal source and clock appearance, wherein:
one path of the signal source is electrically connected with a plurality of electric energy meters arranged on the meter hanging frame through the power source amplifier, the other path of the signal source is electrically connected with a plurality of error meters arranged on the error screen through a standard meter, the clock meters are electrically connected with the error meters, and the electric energy meters are electrically connected with the error meters in a one-to-one correspondence manner;
the meter hanging frame comprises a main body and a base, the main body is fixedly connected with the base, and the electric energy meter is fixedly mounted on the main body;
the error meter comprises a control module and a display module, wherein the control module is electrically connected with the display module.
2. The electric meter durability test device of claim 1, wherein the control module comprises a controller U1 and a communication unit circuit, and the communication unit circuit is electrically connected with the controller U1.
3. The electric meter durability test device of claim 2, wherein the communication unit comprises a communication chip U11, a pin 1 of the communication chip U11 is electrically connected with a pin 2 of a photoelectric coupler IC1 through a diode D2, a pin 1 of the photoelectric coupler IC1 is electrically connected with a power supply through a resistor R9, and a pin 4 of the photoelectric coupler IC1 is electrically connected with a pin 26 of the controller U1;
the 4 pins of the communication chip U11 are electrically connected with the 4 pins of a photoelectric coupler IC2, a resistor R13 is connected in series between the 4 pins and the 6 pins of the photoelectric coupler IC2, the 6 householders of the photoelectric coupler IC2 are connected with a power supply, the 2 pins of the photoelectric coupler IC2 are electrically connected with the 25 pins of the controller U1, and the 1 pin of the photoelectric coupler IC2 is connected with the power supply through the resistor R12.
4. The electric meter durability test device of claim 3, wherein one path of the 2 pins of the communication chip U11 is electrically connected with a power supply through a resistor R14, the other path of the 2 pins of the communication chip U11 is electrically connected with the collector of a triode N3, and the base of the triode N3 is electrically connected with the 4 pins of the photoelectric coupler IC2 through a resistor R15.
5. The electric meter durability test device of any one of claims 2-4, wherein the display module comprises a transceiver unit circuit, a decoder unit circuit and a display unit circuit, the transceiver unit circuit and the decoder unit circuit are respectively electrically connected with the controller U1, and the display unit circuit is respectively electrically connected with the decoder unit circuit and the transceiver unit circuit.
6. The electric meter durability test device of claim 5, wherein the transceiver unit circuit comprises a transceiver U5, a 2 pin of the transceiver U5 is electrically connected with a 46 pin of the controller U1, a 3 pin of the transceiver U5 is electrically connected with a 45 pin of the controller U1, and a 4 pin of the transceiver U5 is electrically connected with a 44 pin of the controller U1.
7. The electric meter durability test device of claim 6, wherein the decoder unit circuit comprises a decoder U6, a pin 1 of the decoder U6 is electrically connected with a pin 53 of the controller U1, a pin 2 of the decoder U6 is electrically connected with a pin 52 of the controller U1, and a pin 3 of the decoder U6 is electrically connected with a pin 51 of the controller U1.
8. The meter durability testing apparatus of claim 7, wherein said display unit circuit comprises an LED unit.
9. An electricity meter durability testing apparatus as claimed in claim 1, wherein said power amplifier is fitted with a plurality of heat sinks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022245601.2U CN213689921U (en) | 2020-10-09 | 2020-10-09 | Ammeter durability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022245601.2U CN213689921U (en) | 2020-10-09 | 2020-10-09 | Ammeter durability test device |
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| Publication Number | Publication Date |
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| CN213689921U true CN213689921U (en) | 2021-07-13 |
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| CN202022245601.2U Active CN213689921U (en) | 2020-10-09 | 2020-10-09 | Ammeter durability test device |
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| CN (1) | CN213689921U (en) |
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