CN221239043U - Intelligent switch detection test device - Google Patents
Intelligent switch detection test device Download PDFInfo
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- CN221239043U CN221239043U CN202322936518.3U CN202322936518U CN221239043U CN 221239043 U CN221239043 U CN 221239043U CN 202322936518 U CN202322936518 U CN 202322936518U CN 221239043 U CN221239043 U CN 221239043U
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Abstract
The utility model provides an intelligent switch detection test device which comprises a switching value input module, a switching value output module, a temperature sensing module, a power supply module, a current generator and a communication control module, wherein the switching value input module is connected with the temperature sensing module; the power supply module is used for providing working voltage for the intelligent switch to be tested and the current generator; the current generator is used for providing working current for the intelligent switch to be tested; the temperature sensing module is used for collecting contact temperature information of the intelligent switch to be tested; the communication control module is connected with the switching value input module, the switching value output module and the temperature sensing module and is used for receiving and transmitting a switching opening instruction or a switching closing instruction to the switching value output module, receiving a switching state signal acquired by the switching value input module and receiving contact temperature information uploaded by the temperature sensor.
Description
Technical Field
The utility model relates to the field of intelligent switch detection, in particular to an intelligent switch detection test device.
Background
The intelligent switch is a unit for realizing the control of the intelligent switch by utilizing the combination and programming of the control board and the electronic components. In the research and development and mass production process of intelligent switches, multiple rounds of testing for switch performance are required. Typical tests such as temperature rise, switching capacity and life are characterized by frequent switching power supply and functional tests in a relatively short period of time. In the past, the test is carried out manually, the efficiency is low, and the test result is unstable due to human factors. With the increasing number of products, the higher and higher progress demands cannot be met, and the product quality and the product production progress are seriously affected.
CN206301028U provides an intelligent switch's automated inspection system, is provided with and measures the frock, and test fixture mainly includes controlled power supply, measured intelligent switch power source interface, measured intelligent switch load interface and indicator, is controlled by the processor module. And a processing logic of a built-in method of the processor module determines whether to control the controlled power supply to supply power to each station according to the information of the existence of the intelligent switch of each station of the test fixture, the stations supply power when the intelligent switch exists, and the stations close the power supply when the intelligent switch does not exist. The processor module determines whether the intelligent switch completes load on-off of one period by detecting the load interface of the intelligent switch to be tested, thereby judging whether the intelligent switch completes testing.
However, the automatic detection system can only be used for detecting the opening and closing capability and the service life of the intelligent switch, and cannot detect the temperature rise, the closing operation voltage, the opening operation voltage, the closing time, the opening time and the like of the intelligent switch.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides an intelligent switch detection test device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an intelligent switch detection test device comprises a switching value input module, a switching value output module, a temperature sensing module, a power supply module, a current generator and a communication control module;
The power supply module is used for providing working voltage for the intelligent switch to be tested and the current generator;
the current generator is used for providing working current for the intelligent switch to be tested;
The switching value input module is used for acquiring a switching state signal of the intelligent switch to be tested;
The switching value output module is used for sending an opening trigger signal or a closing trigger signal to the intelligent switch to be tested according to a switch opening instruction or a switch closing instruction;
The temperature sensing module is used for collecting contact temperature information of the intelligent switch to be tested;
The communication control module is connected with the switching value input module, the switching value output module and the temperature sensing module and is used for receiving and transmitting a switching opening instruction or a switching closing instruction to the switching value output module, receiving a switching state signal acquired by the switching value input module and receiving contact temperature information uploaded by the temperature sensor.
In this scheme, be provided with the temperature sensing module that is arranged in gathering the contact temperature information of being surveyed intelligent switch in the action process that opens and shuts, temperature sensing module is connected with communication control module to realize the uploading of contact temperature information, thereby realize the temperature rise test.
In the implementation, the power supply module is a 0-300V continuously adjustable voltage source. The current generator is a 0-100A continuously adjustable current source.
In specific implementation, the switching value output module comprises a triode, a relay and a wiring terminal, wherein the base electrode of the triode is connected with the network port-RS 485 conversion module through a resistor voltage dividing circuit so as to receive a switch opening instruction or a switch closing instruction, and one end of an electrified coil of the relay is connected with a collector electrode of the triode, and the other end of the electrified coil of the relay is connected with a 12V power supply; the normally open contact of the relay is connected with the pair of inner pins 1 of the wiring terminal, the normally closed contact is connected with the pair of inner pins 3 of the wiring terminal, and the movable contact is connected with the pair of inner pins 2 of the wiring terminal; the external pin of the wiring terminal is connected with the intelligent switch;
The switching value input circuit comprises a photoelectric isolator, a cathode input pin of the photoelectric isolator is connected with the intelligent switch, an anode input pin of the photoelectric isolator is connected with a 12V power supply, and an output end of the photoelectric isolator is connected with the network port-RS 485 conversion module.
Compared with the prior art, the intelligent switch temperature sensing module is provided, and can acquire contact temperature data in real time when the intelligent switch is opened and closed, so that the change condition of the contact temperature along with the opening and closing times is obtained, and the temperature rise test is realized; the switch input module and the switch output module can be used for detecting the closing operation voltage, the opening operation voltage, the closing time, the opening time and the like of the intelligent switch; in addition, the current generator is a continuous adjustable current source, can provide stable and accurate current output for different intelligent switches, and has high adaptability.
Drawings
Fig. 1 is a functional block diagram of the present utility model.
Fig. 2 is a schematic block diagram of a communication control module according to the present utility model.
Fig. 3 is a circuit schematic of the ethernet communication interface circuit of the present utility model.
Fig. 4 is a circuit schematic diagram of the RS485 communication interface circuit of the utility model.
Fig. 5 is a circuit schematic of the switching value input circuit of the present utility model.
Fig. 6 is a circuit schematic of the switching value output circuit of the present utility model.
Fig. 7 is a schematic diagram of the use of the present utility model.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
Example 1
The embodiment provides an intelligent switch detection test device, as shown in fig. 1, which comprises a switching value input module, a switching value output module, a temperature sensing module, a power module, a current generator and a communication control module.
The power supply module is used for providing working voltage for the intelligent switch to be tested and the current generator; specifically, the power supply module is a continuously adjustable voltage source, the voltage regulation range is 0-300V, the voltage resolution is 0.1V, and the voltage can be automatically increased and decreased, so that stable and accurate voltage output is provided for the voltage test of the intelligent switch to be tested.
The current generator is used for providing working current for the intelligent switch to be tested; specifically, the current generator is a continuously adjustable current source, and the adjustment range is 0-100A, so that stable and accurate current output is provided for various tests of the intelligent switch; when in implementation, the current generator receives external control instructions and responds to generate corresponding current.
The communication control module is connected with the switching value input module, the switching value output module and the temperature sensing module and is used for receiving and transmitting a switching value opening instruction or a switching value closing instruction to the switching value input module and the switching value output module, receiving switching state signals acquired by the switching value input module and the switching value output module and receiving contact temperature information uploaded by the temperature sensor.
In specific implementation, as shown in fig. 2, the communication control module includes a network port-RS 485 conversion module, where the network port-RS 485 conversion module is configured to be connected with the switching value input module, the switching value output module, and the temperature sensing module in a wired manner, so as to implement data communication between the outside and the switching value input module, the switching value output module, and the temperature sensing module.
In specific implementation, the network port-RS 485 conversion module comprises an Ethernet communication interface circuit for realizing high-speed communication between the communication control module and the outside and an RS485 communication interface circuit for realizing data communication between the communication control module and the switching value input module, the switching value output module and the temperature sensing module.
Fig. 3 is a schematic circuit diagram of the ethernet communication interface circuit. The Ethernet communication interface circuit comprises a W5500 chip and an FC-256GYNL, wherein the W5500 chip is an embedded Ethernet controller integrating all hardware TCP/IP protocol stacks, the W5500 adopts a high-speed standard 4-line SPI interface to communicate with a main controller, 8 independent hardware sockets are embedded in the W5500 to carry out 8 paths of independent communication, and the communication efficiency of each Socket is not affected. FC-256GYNL is a single-port hundred meganets socket, a built-in hundred meganets transformer, a lamp and stable performance, and the Ethernet communication interface circuit is mainly used for high-speed communication between the communication control module and the master station system.
Fig. 4 is a schematic circuit diagram of the RS485 communication interface circuit. The RS485 communication interface circuit comprises an SN65HVD3082ED half-duplex transceiver, positive temperature coefficient thermistors PT1 and PT2 and voltage stabilizing tubes TVS1 and TVS2. The SN65HVD3082ED half-duplex transceiver is a half-duplex transceiver specially designed for an RS-485 data bus network; TVS1, TVS2 provide ESD static and surge protection for RS485 interface, have leakage current little, advantage such as being fast of reaction rate; the positive temperature coefficient thermistors PT1 and PT2 realize overcurrent protection for the circuit.
Further, the communication control module further comprises a network port-wireless communication module, and the network port-wireless communication module is in wireless communication with the intelligent switch to be tested.
The switching value input module is used for acquiring a switching state signal of the intelligent switch to be tested; specifically, the switching value input circuit comprises a photoelectric isolator, and a cathode input pin 2 of the photoelectric isolator is connected with the intelligent switch and is used for collecting state signal values of the intelligent switch; an anode input pin of the photoelectric isolator is connected with a 12V power supply, and an output end of the photoelectric isolator is connected with the network port-RS 485 conversion module; when the intelligent switch is disconnected, the photoelectric isolator is disconnected, and a high level is output; when the intelligent switch is closed, the photoelectric isolator is closed, and a low level is output.
As shown IN fig. 5, the digital_in1 and the digital_in2 are dual control signals of an intelligent switch respectively, when the intelligent switch is turned off, the digital_in1 and the digital_in2 are IN a suspended state, the photo isolator OP1 is IN a turned-off state, and the pb12_digital-IN1 is IN a high level; when the intelligent switch is closed, the digital_in1 and the digital_in2 are IN a low level state, the photo-isolator OP1 is IN a conducting state, and the pb12_digital-IN1 is IN a low level.
The switching value output module is used for sending an opening trigger signal or a closing trigger signal to the intelligent switch to be tested according to a switch opening instruction or a switch closing instruction. In specific implementation, the switching value output module comprises a triode, a relay and a wiring terminal, wherein the base electrode of the triode is connected with the network port-RS 485 conversion module through a resistor voltage dividing circuit so as to receive a switch opening instruction or a switch closing instruction, and one end of an electrified coil of the relay is connected with a collector electrode of the triode, and the other end of the electrified coil of the relay is connected with a 12V power supply; the normally open contact of the relay is connected with the pair of inner pins 1 of the wiring terminal, the normally closed contact is connected with the pair of inner pins 3 of the wiring terminal, and the movable contact is connected with the pair of inner pins 2 of the wiring terminal; and an external pin of the wiring terminal is connected with the intelligent switch. Preferably, the wiring terminal selects Kang Naike s electrical WJ2EDGK-5.08-3P.
As shown in fig. 6, the switching value output circuit includes a triode Q6 and a relay JK4, where the triode Q6 is a BC817 triode, the relay JK4 is an HF3FF-012-1ZS relay, an energizing coil of the relay JK4 is connected with a collector of the triode Q6, and the switching of a contact of the relay JK4 is controlled by controlling the on-off of the triode Q6 so as to send an opening trigger signal or a closing trigger signal to the intelligent switch to be tested, specifically, when a switch opening instruction, i.e., PB3-JK4 is at a low level, the triode Q6 is turned on, the energizing coil of the relay JK4 is energized, and an inner pin1 of the wire connecting terminal is communicated with an inner pin 2; when the switch-off instruction PB3-JK4 is at a high level, the triode Q6 is disconnected, the energizing coil of the relay JK4 is deenergized, and the pair inner pin3 of the wiring terminal is communicated with the pair inner pin 2.
Further, the energizing coil of the relay JK4 is connected in parallel with a series branch consisting of a resistor R4 and an indicator light LED5, and the indicator light LED5 is used for indicating the state of the relay JK 4; the power-on coil of the relay JK4 is also connected with a flywheel diode D7 in parallel, when the relay JK4 is released, the power-on coil is suddenly powered off to generate higher induced voltage with opposite directions, and the flywheel diode D7 can protect the triode Q6 from damage.
The temperature sensing module is used for collecting contact temperature information of the intelligent switch to be tested, and when the intelligent switch is implemented, the temperature sensing module adopts a high-temperature surface patch thermocouple slice temperature sensor, and the high-temperature surface patch thermocouple slice temperature sensor is attached to a contact of the intelligent switch to be tested so as to collect the contact temperature information of the intelligent switch to be tested.
When the intelligent switch detection test execution device is used, the intelligent switch detection test execution device needs to be matched with a control host, as shown in fig. 7, when the intelligent switch detection test execution device is in specific implementation, a master station system of various detection processing logics is arranged on the control host, the master station system can be used for conveniently setting the on-off time, the off-off time and the on-off times of the intelligent switch, after the on-off time, the on-off time and the on-off times of the intelligent switch are set, the master station system generates a switch off instruction or a switch on instruction according to the set on-off time, the on-off time and the on-off times, the switch off instruction or the switch on instruction is sent to a switch quantity output module by using an RS485 serial port line, and a switch quantity output circuit on the switch quantity output module is triggered, so that the tested intelligent switch can be started to be tested.
Wherein, the closing time and the opening time can be set at will between 0.001 seconds and 65.535 seconds, and the opening and closing times can be input at will between 1 time and 65535 times.
When the system is in specific implementation, the master station system is connected into the communication control module through an Ethernet standard network cable, the communication control module is used for realizing the conversion from Ethernet to wireless and RS485 in a communication mode, the communication control module is connected with the intelligent switch in a wireless mode, and the communication control module is connected with the switching value input module, the switching value output module and the temperature sensing module through the RS485 to complete data communication. The main station system is also connected with a current generator through a USB interface to finish the current setting during the detection test.
The specific workflow of this embodiment is as follows:
When the switch life test is carried out, the master station system controls the current generator to output current to the intelligent switch to be tested through the USB interface, the control host sequentially sends a plurality of switch opening instructions or switch closing instructions to the switch quantity output module according to preset opening and closing times, the switch quantity output module inputs a closing trigger signal or an opening trigger signal to the intelligent switch to be tested according to the switch opening instructions or the switch closing instructions so as to control the intelligent switch to be opened and closed for multiple times, the change condition of the contact point temperature of the intelligent switch to be tested along with the opening and closing times is monitored in real time, and the control host obtains a switch life test result according to the monitoring result.
When a closed operation voltage test is carried out, the intelligent switch is in an open state, the control host sends a switch closing instruction to the switching value output module, the switching value output module inputs a closing trigger signal to the intelligent switch to be tested according to the switch closing instruction, meanwhile, the power supply module is controlled to provide voltage for the intelligent switch, voltage output is increased according to a certain step length, the state of the intelligent switch to be tested is detected, the test is stopped until the intelligent switch to be tested is detected to be converted into the closed state, and the voltage value output by the power supply module is the closed operation voltage of the intelligent switch at the moment.
When the switch-off operation voltage test is carried out, the intelligent switch is in a closed state, the control host sends a switch-off instruction to the switch quantity output module, the switch quantity output module inputs a switch-off trigger signal to the intelligent switch to be tested according to the switch-off instruction, meanwhile, the power supply module is controlled to provide voltage for the intelligent switch, voltage output is reduced according to a certain step length, the state of the intelligent switch to be tested is detected, the test is stopped until the intelligent switch to be tested is detected to be switched to the open state, and the voltage value output by the power supply module is the switch-off operation voltage of the intelligent switch at the moment.
When the closing time test is carried out, the intelligent switch is ensured to be in an open state, the power supply module is controlled to output closing voltage to the intelligent switch, the control host sends a switch closing instruction to the switching value output module, the switching value output module inputs a closing trigger signal to the intelligent switch to be tested according to the switch closing instruction, the closing time of the intelligent switch to be tested is detected, and the control host obtains a closing time test result according to the closing time and the preset closing time of the intelligent switch to be tested.
When the disconnection time test is carried out, the intelligent switch is ensured to be in a closed state, the power supply module is controlled to output disconnection voltage to the intelligent switch, the control host sends a switch disconnection instruction to the switching value output module, the switching value output module inputs a disconnection triggering signal to the intelligent switch to be tested according to the switch disconnection instruction, the disconnection time of the intelligent switch to be tested is detected, and the control host obtains a disconnection time test result according to the disconnection time and the preset disconnection time of the intelligent switch to be tested.
In the scheme, the temperature sensor is utilized to collect contact temperature information in the opening and closing action process of the intelligent switch to be tested, so that temperature rise test is realized. In the scheme, the working voltage can be provided for the intelligent switch to be tested and the current generator through the power supply module; the intelligent switch control device comprises a current generator, a switching value output module, a switching value input module, a switching value output module and a switching value output module.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (6)
1. An intelligent switch detects test device, its characterized in that: the device comprises a switching value input module, a switching value output module, a temperature sensing module, a power module, a current generator and a communication control module;
The power supply module is used for providing working voltage for the intelligent switch to be tested and the current generator;
the current generator is used for providing working current for the intelligent switch to be tested;
The switching value input module is used for acquiring a switching state signal of the intelligent switch to be tested;
The switching value output module is used for sending an opening trigger signal to the intelligent switch to be tested according to a switch opening instruction or sending a closing trigger signal to the intelligent switch to be tested according to a switch closing instruction;
The temperature sensing module is used for collecting contact temperature information of the intelligent switch to be tested;
The communication control module is connected with the switching value input module, the switching value output module and the temperature sensing module and is used for receiving and transmitting a switching opening instruction or a switching closing instruction to the switching value output module, receiving a switching state signal acquired by the switching value input module and receiving contact temperature information uploaded by the temperature sensor.
2. The intelligent switch detection test device according to claim 1, wherein: the communication control module comprises a network port-RS 485 conversion module, and the network port-RS 485 conversion module is respectively connected with the switching value input module, the switching value output module and the temperature sensing module in a wired mode.
3. The intelligent switch detection test device according to claim 2, wherein: the communication control module further comprises a network port-wireless communication module, and the network port-wireless communication module is in wireless communication with the intelligent switch to be tested.
4. An intelligent switch detection test apparatus according to claim 1, 2 or 3, wherein: the power supply module is a 0-300V continuously adjustable voltage source.
5. An intelligent switch detection test apparatus according to claim 1, 2 or 3, wherein: the current generator is a 0-100A continuously adjustable current source.
6. An intelligent switch detection test apparatus according to claim 2 or 3, characterized in that: the switching value output module comprises a triode, a relay and a wiring terminal, wherein the base electrode of the triode is connected with the network port-RS 485 conversion module through a resistor voltage dividing circuit so as to receive a switch opening instruction or a switch closing instruction, and one end of an electrified coil of the relay is connected with the collector electrode of the triode, and the other end of the electrified coil of the relay is connected with a 12V power supply; the normally open contact of the relay is connected with the pair of inner pins 1 of the wiring terminal, the normally closed contact is connected with the pair of inner pins 3 of the wiring terminal, and the movable contact is connected with the pair of inner pins 2 of the wiring terminal; the external pin of the wiring terminal is connected with the intelligent switch;
The switching value input circuit comprises a photoelectric isolator, a cathode input pin of the photoelectric isolator is connected with the intelligent switch, an anode input pin of the photoelectric isolator is connected with a 12V power supply, and an output end of the photoelectric isolator is connected with the network port-RS 485 conversion module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322936518.3U CN221239043U (en) | 2023-10-31 | 2023-10-31 | Intelligent switch detection test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322936518.3U CN221239043U (en) | 2023-10-31 | 2023-10-31 | Intelligent switch detection test device |
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| CN221239043U true CN221239043U (en) | 2024-06-28 |
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| CN202322936518.3U Active CN221239043U (en) | 2023-10-31 | 2023-10-31 | Intelligent switch detection test device |
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