CN214585815U - Hand-held type is performance parameter tester for insulation protection - Google Patents
Hand-held type is performance parameter tester for insulation protection Download PDFInfo
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- CN214585815U CN214585815U CN202120030309.0U CN202120030309U CN214585815U CN 214585815 U CN214585815 U CN 214585815U CN 202120030309 U CN202120030309 U CN 202120030309U CN 214585815 U CN214585815 U CN 214585815U
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Abstract
The utility model relates to a hand-held insulation protection performance parameter tester, which comprises a host, wherein the host is provided with a first test terminal and a second test terminal, the first test terminal is connected with a first test pen, and the second test terminal is connected with a second test pen; the host is internally provided with a test circuit and a power supply module, and the test circuit comprises a microprocessor module and a performance parameter test circuit; the output end of the power supply module is connected with the microprocessor module through a power switch, the input end of the microprocessor module is connected with a test key, and the output end of the microprocessor module is connected with a display screen; the performance parameter testing circuit comprises a voltage reduction circuit, a voltage boosting circuit, a current detection circuit and a voltage detection circuit. The utility model discloses the starting voltage of test insulation protection product that can be accurate and leakage current's main performance parameter, the judgement insulation protection product that can be accurate whether damages, and the test is accurate reliable, convenient to use.
Description
Technical Field
The utility model belongs to the technical field of insulation protection detects, especially, relate to a performance parameter tester for hand-held type insulation protection.
Background
At present, the lightning protection products of the insulating joint mainly comprise several protection products such as a spark gap, a zinc grounding battery, an equipotential connector, a low-voltage lightning arrester, a solid-state decoupler and the like, and the protection products are used as the lightning protection products of the insulating joint. When the insulating joint protection product is used on site, whether the operation condition of the insulating joint protection product is normal or not needs to be tested, and the traditional method for detecting the insulating joint protection product on site generally measures the on-off state through a multimeter or carries out visual observation of the appearance so as to simply and roughly judge whether the insulating joint protection product is damaged or not. Because the performance parameter difference of the lightning protection capability of each product is large, the method of measuring the on-off by using a multimeter or observing the appearance by naked eyes cannot test the main performance parameters of the insulation protection product, such as the starting voltage, the leakage current and the like, and is difficult to judge whether the insulation protection product is damaged or not.
So, can't test main performance parameter such as starting voltage and leakage current of insulating protection product to the insulating protection product of installation scene to and be difficult to judge the problem whether insulating protection product damages, design a section can the on-the-spot detection the tester not slow at all.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a performance parameter tester for hand-held type insulation protection, the starting voltage of test insulation protection product that can be accurate and leakage current's main performance parameter, whether judgement insulation protection product that can be accurate damages, and the test is accurate reliable, convenient to use.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a handheld performance parameter tester for insulation protection comprises a host, wherein a first test terminal and a second test terminal are arranged on the host, a first test pen is connected to the first test terminal, and a second test pen is connected to the second test terminal; the host is internally provided with a test circuit and a power supply module, and the test circuit comprises a microprocessor module and a performance parameter test circuit;
the output end of the power supply module is connected with the microprocessor module through a power switch, the input end of the microprocessor module is connected with a test key, and the output end of the microprocessor module is connected with a display screen;
the performance parameter test circuit comprises a voltage reduction circuit, a voltage boosting circuit, a current detection circuit and a voltage detection circuit, wherein the voltage reduction circuit and the voltage boosting circuit are all connected with the output end of the microprocessor module, the current detection circuit and the voltage detection circuit are all connected with the input end of the microprocessor module, the output end of the voltage reduction circuit and the output end of the voltage boosting circuit are all connected with the current detection circuit and the voltage detection circuit, two output ends of the voltage reduction circuit are respectively connected with a first test terminal and a second test terminal, and two output ends of the voltage boosting circuit are respectively connected with the first test terminal and the second test terminal.
Preferably, the boost circuit and the buck circuit both comprise a fixed resistor R and a variable resistor R, the voltage detection circuit comprises a voltmeter V, the current detection circuit comprises an ammeter A, the fixed resistor R and the variable resistor R are connected in series and then are connected between the power module and the first test terminal, the ammeter A is connected between the power module and the second test terminal, and the voltmeter V is connected in parallel between the first test terminal and the second test terminal.
Preferably, the power supply module comprises a power connection terminal and an AC/DC power supply, the microprocessor module is connected with the AC/DC power supply through a power switch, and the AC/DC power supply is connected with the alternating current power supply through the power connection terminal.
Preferably, the input end of the microprocessor module is connected with a return key and an inquiry key.
Preferably, the display screen is exposed on the outer surface of the upper part of the host, the test key, the return key and the query key are exposed on the outer surface of the middle part of the host and located below the display screen, the power supply wiring terminal is exposed on the top of the host, and the power supply switch is exposed on one side surface of the host.
Preferably, the microprocessor module is connected with a USB data transmission terminal used for being connected with and communicating with a PC, and the USB data transmission terminal is exposed out of the top of the host.
Preferably, the other side of the main machine is provided with an antiskid protection chain for preventing skidding.
Preferably, the microprocessor module comprises a single chip microcomputer with the model of STM.
Preferably, the display screen is a touch liquid crystal display screen.
The utility model discloses a technological effect and advantage:
the novel voltage boosting circuit, the voltage reducing circuit, the voltage detection circuit, the current detection circuit and the microprocessor module are connected, the voltage boosting circuit is used for boosting the power voltage to a set value according to a control signal sent by the microprocessor module and used as a working power supply of the performance parameter testing circuit, the voltage detection circuit collects a boosted voltage value and a boosted current value and transmits the boosted voltage value and the boosted current value to the microcontroller module, when a discharge tube is broken down, the voltage detection circuit records an instantaneous discharge voltage, and the starting voltage of an insulation protection product can be accurately tested; the voltage reduction circuit is adopted to reduce the power voltage to a set value according to a control signal sent by the microprocessor module and is used as a working power supply of the performance parameter testing circuit, the circuit detection circuit collects a voltage value and a current value after voltage reduction and transmits the voltage value and the current value to the microcontroller module, when the current reaches 1mA, the current detection circuit records a leakage value under the voltage of 0.75U1mA, and the leakage value of the insulation protection product can be accurately tested.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit structure diagram of the present invention.
Fig. 3 is a schematic diagram of the performance parameter testing circuit of the present invention.
Reference numbers in the figures: 1. a host; 2. a second test pen; 3. a display screen; 4. testing the key; 5. inquiring a key; 6. returning to the key; 7. a power supply wiring terminal; 8. a power switch; 9. a second test terminal; 10. a first test terminal; 11. a first test pen; 12. a USB data transmission terminal; 13. an anti-skid protection chain; 14. a microprocessor module; 15. an AC/DC power supply; 16. a voltage reduction circuit; 17. a boost circuit; 18. a current detection circuit; 19. a voltage detection circuit.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrated in the accompanying drawings.
Referring to fig. 1 to 3, a handheld performance parameter tester for insulation protection includes a host 1, where the host 1 is provided with a first test terminal 10 and a second test terminal 9, the first test terminal 10 is connected to a first test pen 11, and the second test terminal 9 is connected to a second test pen 2; the host machine 1 is internally provided with a test circuit and a power supply module, wherein the test circuit comprises a microprocessor module 14 and a performance parameter test circuit. The output end of the power supply module is connected with the microprocessor module 14 through the power switch 8, the input end of the microprocessor module 14 is connected with the test key 4, and the output end of the microprocessor module 14 is connected with the display screen 3. The performance parameter test circuit comprises a voltage reduction circuit 16, a voltage boosting circuit 17, a current detection circuit 18 and a voltage detection circuit 19, wherein the voltage reduction circuit 16 and the voltage boosting circuit 17 are connected with the output end of the microprocessor module 14, the current detection circuit 18 and the voltage detection circuit 19 are connected with the input end of the microprocessor module 14, the output end of the voltage reduction circuit 16 and the output end of the voltage boosting circuit 17 are connected with the current detection circuit 18 and the voltage detection circuit 19, two output ends of the voltage reduction circuit 16 are respectively connected with a first test terminal 10 and a second test terminal 9, and two output ends of the voltage boosting circuit 17 are respectively connected with the first test terminal 10 and the second test terminal 9. The voltage boost circuit 17 and the voltage step-down circuit 16 both include a fixed resistor R1 and a variable resistor R2, the voltage detection circuit 19 includes a voltmeter V, the current detection circuit 18 includes an ammeter a, the fixed resistor R1 and the variable resistor R2 are connected in series and then connected between the power module and the first test terminal 10, the ammeter a is connected between the power module and the second test terminal 9, and the voltmeter V is connected in parallel between the first test terminal 10 and the second test terminal 9.
Preferably, the display screen 3 is a touch liquid crystal display screen.
Preferably, the microprocessor module 14 comprises a single chip microcomputer of the type STM 32.
In specific implementation, the microcontroller module 14 is used for outputting a command to control the voltage boosting circuit 17 and the voltage dropping circuit 16 to step down to a set value, receiving information of the current detection circuit 18 and the voltage detection circuit 19, outputting a command to control the display screen 3 to display ready information, and outputting a command to control the display screen 3 to display a test result according to the received information. The voltage boosting circuit 17 and the voltage reducing circuit 16 function as a working power supply for testing, namely, a high voltage power supply for boosting or reducing the power supply voltage to a set value according to a command sent by the microcontroller module 14. The current detection circuit 18 is used for determining whether the currents of the voltage boost circuit 17 and the voltage buck circuit 16 reach a set value, recording the current, and informing the microcontroller module 14 of the current reaching the set value. The voltage detection circuit 19 is used for determining whether the voltages of the voltage boosting circuit 17 and the voltage reducing circuit 16 reach a set value, recording the voltage, and informing the microcontroller module 14 of the information that the voltage reaches the set value.
Referring to fig. 2, the power supply module comprises a power connection terminal 7 and an AC/DC power supply 15, the microprocessor module 14 is connected with the AC/DC power supply 15 through a power switch 8, and the AC/DC power supply 15 is connected with an alternating current power supply through the power connection terminal 7. The DC power supply is a storage battery and is connected with a power supply wiring terminal 7.
In specific implementation, the storage battery can be charged by connecting the power connection terminal 7 to an alternating current power supply. When the detection site is inconvenient to connect with an alternating current power supply, the function of supplying power by a storage battery is adopted. When the detection site is convenient to connect with an alternating current power supply or the storage battery is not electrified, the alternating current power supply can be adopted for supplying power.
Referring to fig. 1, a first test terminal 10 and a second test terminal 9 are arranged on the host 1, a first test pen 11 is connected to the first test terminal 10, and a second test pen 2 is connected to the second test terminal 9. The display screen 3 is exposed on the outer surface of the upper part of the host 1, the test key 4, the return key 6 and the query key 5 are all exposed on the outer surface of the middle part of the host 1 and are positioned below the display screen 3, the power supply wiring terminal 7 is exposed on the top of the host 1, and the power supply switch 8 is exposed on one side surface of the host 1. The other side of the main machine 1 is provided with an antiskid protection chain 13 for antiskid.
In specific implementation, the test key 4, the return key 6 and the query key 5 are arranged in a line shape.
Referring to fig. 2, a USB communication circuit for connecting and communicating with a PC is connected to the microprocessor module 14, a USB data transmission terminal 12 is connected to the USB communication circuit, and the USB data transmission terminal 12 is exposed at the top of the host 1.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.
The utility model discloses the theory of operation: when the handheld performance parameter tester for insulation protection is used, the first test pen 11 and the second test pen 2 are connected with the positive electrode and the negative electrode of an insulation protection product, the power switch 8 is turned on, alternating current power supply can be carried out on the tester through the power wiring terminal 7 when an alternating current power supply exists in a detection site, and a power supply battery can be directly adopted to supply power to the tester when no alternating current power supply exists in the detection site.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a performance parameter tester for hand-held type insulation protection which characterized in that: the test device comprises a host (1), wherein a first test terminal (10) and a second test terminal (9) are arranged on the host (1), a first test pen (11) is connected to the first test terminal (10), and a second test pen (2) is connected to the second test terminal (9); the testing circuit comprises a microprocessor module (14) and a performance parameter testing circuit, wherein the testing circuit and a power supply module are arranged in the host (1);
the output end of the power supply module is connected with a microprocessor module (14) through a power switch (8), the input end of the microprocessor module (14) is connected with a test key (4), and the output end of the microprocessor module (14) is connected with a display screen (3);
the performance parameter test circuit comprises a voltage reduction circuit (16), a voltage boosting circuit (17), a current detection circuit (18) and a voltage detection circuit (19), wherein the voltage reduction circuit (16) and the voltage boosting circuit (17) are all connected with the output end of a microprocessor module (14), the current detection circuit (18) and the voltage detection circuit (19) are all connected with the input end of the microprocessor module (14), the output end of the voltage reduction circuit (16) and the output end of the voltage boosting circuit (17) are all connected with the current detection circuit (18) and the voltage detection circuit (19), two output ends of the voltage reduction circuit (16) are respectively connected with a first test terminal (10) and a second test terminal (9), and two output ends of the voltage boosting circuit (17) are respectively connected with the first test terminal (10) and the second test terminal (9).
2. The hand-held insulation protection performance parameter tester of claim 1, wherein: the voltage boosting circuit (17) and the voltage reducing circuit (16) both comprise a fixed resistor R1 and a variable resistor R2, the voltage detection circuit (19) comprises a voltmeter V, the current detection circuit (18) comprises an ammeter A, the fixed resistor R1 and the variable resistor R2 are connected in series and then connected between the power module and the first test terminal (10), the ammeter A is connected between the power module and the second test terminal (9), and the voltmeter V is connected in parallel between the first test terminal (10) and the second test terminal (9).
3. The hand-held insulation protection performance parameter tester of claim 1 or 2, wherein: the power module comprises a power connection terminal (7) and an AC/DC power supply (15), the microprocessor module (14) is connected with the AC/DC power supply (15) through a power switch (8), and the AC/DC power supply (15) is connected with an alternating current power supply through the power connection terminal (7).
4. The hand-held insulation protection performance parameter tester of claim 3, wherein: the input end of the microprocessor module (14) is connected with a return key (6) and an inquiry key (5).
5. The hand-held insulation protection performance parameter tester of claim 4, wherein: the display screen (3) is exposed on the outer surface of the upper part of the host (1), the test key (4), the return key (6) and the query key (5) are exposed on the outer surface of the middle part of the host (1) and located below the display screen (3), the power supply wiring terminal (7) is exposed on the top of the host (1), and the power supply switch (8) is exposed on one side surface of the host (1).
6. The hand-held insulation protection performance parameter tester of claim 1, wherein: the microprocessor module (14) is connected with a USB data transmission terminal (12) which is used for being connected with and communicating with a PC, and the USB data transmission terminal (12) is exposed at the top of the host (1).
7. The hand-held insulation protection performance parameter tester of claim 1, wherein: and the other side surface of the main machine (1) is provided with an antiskid protective chain (13) for antiskid.
8. The hand-held insulation protection performance parameter tester of claim 1, wherein: the microprocessor module (14) comprises a single chip microcomputer of which the model is STM 32.
9. The hand-held insulation protection performance parameter tester of claim 1, wherein: the display screen (3) is a touch liquid crystal display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120030309.0U CN214585815U (en) | 2021-01-07 | 2021-01-07 | Hand-held type is performance parameter tester for insulation protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120030309.0U CN214585815U (en) | 2021-01-07 | 2021-01-07 | Hand-held type is performance parameter tester for insulation protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214585815U true CN214585815U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120030309.0U Active CN214585815U (en) | 2021-01-07 | 2021-01-07 | Hand-held type is performance parameter tester for insulation protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214585815U (en) |
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2021
- 2021-01-07 CN CN202120030309.0U patent/CN214585815U/en active Active
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