CN213181974U - Adapter circuit for preventing pin looseness - Google Patents
Adapter circuit for preventing pin looseness Download PDFInfo
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- CN213181974U CN213181974U CN202021517684.XU CN202021517684U CN213181974U CN 213181974 U CN213181974 U CN 213181974U CN 202021517684 U CN202021517684 U CN 202021517684U CN 213181974 U CN213181974 U CN 213181974U
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- pin
- adapter
- detection module
- resistor
- pvi5080
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Abstract
The utility model provides a prevent not hard up adapter circuit of pin, it can effectively monitor whether reliable contact of adapter jack and electronic component pin. The electronic component looseness detection device comprises a pin looseness detection module, wherein the input end of the pin looseness detection module is in electric control connection with the corresponding pin of the electronic component to be detected, and the output end of the pin looseness detection module is connected with an alarm module.
Description
Technical Field
The utility model relates to an adapter technical field specifically is a prevent not hard up adapter circuit of pin.
Background
In order to increase the reliability of the instruments and meters, the main electronic elements used for packaging the instruments and meters need to be detected before installation, and an adapter for plugging and unplugging the electronic elements is needed during detection. However, the reliable contact between the adapter jack and the electronic element pin cannot be judged during the test of the existing adapter, and if the adapter jack is not in good contact with the electronic element pin or cannot be in reliable contact with the electronic element pin, the correctness of test data can be influenced, and misdetection is caused. Therefore, it is necessary to ensure good contact between the adapter and the electronic component during testing to ensure that the data can be tested correctly.
SUMMERY OF THE UTILITY MODEL
Whether reliable unable judgement when being connected to current adapter jack and electronic component's pin to lead to influencing the problem of test electronic component test data reliability, the utility model provides a prevent not hard up adapter circuit of pin, whether it can effectively monitor adapter jack and electronic component pin reliable contact.
The technical scheme is as follows: the adapter circuit for preventing the pin looseness is characterized by comprising a pin looseness detection module, wherein the input end of the pin looseness detection module is electrically connected with a pin of an electronic element to be detected correspondingly and respectively, and the output end of the pin looseness detection module is connected with an alarm module respectively;
it is further characterized in that: the electronic element to be tested is a three-terminal regulator, the pin looseness detection module and the alarm module connected with the pin looseness detection module comprise three circuits with the same circuit structure, one of the pin looseness detection modules comprises a PVI5080 adapter U1, a 2 pin of the PVI5080 adapter U1 is connected with one end of a resistor R1 and a 1 pin of the three-terminal regulator and leads out an output end 1, the other end of the resistor R1 is connected with the anode of a power supply E1, the cathode of the power supply E1 is connected with one end of a relay switch K1, and the other end of the relay switch K1 is connected with the 2 pin of the PVI5080 adapter U1 and the 1 pin of the three-terminal regulator;
the alarm module comprises an MOS tube FR3910, one end of a grid connecting resistor R2 of the MOS tube FR3910 and an 8 pin of the PVI5080 adapter U1 are connected, the other end of the resistor R2 is connected with a source electrode of the MOS tube FR3910 and then connected with a 5 pin of the PVI5080 adapter U1, a drain electrode of the MOS tube FR3910 is connected with a cathode of a light-emitting diode D1, an anode of the light-emitting diode D1 is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with a power VCC.
After the structure is adopted, the pins of the electronic element to be detected are respectively in electric control connection with the pin looseness detection module, so that whether the pins of the electronic element to be detected are loosened or not can be respectively detected, the output end of the pin looseness detection module is connected with the alarm module, and if the pins are loosened, the alarm module gives an alarm, so that whether the jacks of the adapter are reliably contacted with the pins of the electronic element or not is effectively monitored.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The utility model provides a prevent not hard up adapter circuit of pin, includes the not hard up detection module of pin, and the not hard up detection module of pin's input corresponds automatically controlled with the pin of being surveyed electronic component respectively and is connected, and the not hard up detection module of pin's output is connected alarm module respectively.
As shown in fig. 1, the electronic component to be tested is a three-terminal regulator, the pin looseness detecting module and the alarm module connected thereto include three circuits having the same circuit structure, and the explanation is given by using one of the pin looseness detecting module and the alarm module connected thereto, the pin looseness detecting module includes a PVI5080 adaptor U1, a 2-pin of the PVI5080 adaptor U1 connects one end of a resistor R1 and a 1-pin of the three-terminal regulator and leads out an output terminal 1, the other end of the resistor R1 is connected to the positive electrode of a power supply E1, the negative electrode of the power supply E1 is connected to one end of a relay switch K1, and the other end of the relay switch K1 is connected to a 2-pin of the PVI5080 adaptor U1 and a 1-. The module a shown in fig. 1 is an alarm module connected to the PVI5080 adaptor U1, and includes a MOS transistor FR3910, a gate of the MOS transistor FR3910 is connected to one end of a resistor R2 and an 8-pin of the PVI5080 adaptor U1, the other end of the resistor R2 is connected to a source of the MOS transistor FR3910 and then connected to a 5-pin of the PVI5080 adaptor U1, a drain of the MOS transistor FR3910 is connected to a cathode of a light emitting diode D1, an anode of the light emitting diode D1 is connected to one end of a resistor R5, and the other end of the resistor R5 is connected to a power VCC.
The working principle of the utility model is as follows:
the 1 pin of the three-terminal voltage stabilizer is connected with 2 reeds A, B of a PVI5080 adapter U1, when the three-terminal voltage stabilizer works normally, a relay switch K1 is closed, current flows in a loop I, and a diode V of a PVI5080 adapter U1 is connected by A, B two pointsD1Short-circuits, i.e. diodes VD1No current flows through the MOS tube FR3910, and the contact of the reed A, B is good, so that the test can be carried out.
However, when one or two of the A, B reeds are in poor or no contact with the pins of the three-terminal regulator, the diode V in the PVI5080 adapter U1D1With current flowing through the optocoupler secondary of the PVI5080 adapter U1When the voltage is output to enable the MOS tube FR3910 to be conducted, the red light emitting diode D1 is conducted to emit light, and one or two of the two reeds A, B are warned that the contact with the pin of the three-terminal regulator 1 is poor and the fault is required to be eliminated.
The 2 pin and the 3 pin of the three-terminal voltage regulator are respectively connected with a reed C, D and a reed E, F, and the principle is the same as that of the 1 pin and the reed A, B. The circuit is closed or opened by controlling the relay switches K1, K2 and K3, and simultaneously, whether the contact of the pins 1, 2 and 3 with the adapter is reliable or not is detected, so that the testing accuracy is ensured.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. An adapter circuit for preventing a pin from loosening, comprising: the electronic component looseness detection device comprises a pin looseness detection module, wherein the input end of the pin looseness detection module is in electric control connection with the corresponding pin of the electronic component to be detected, and the output end of the pin looseness detection module is connected with an alarm module.
2. The adapter circuit of claim 1, wherein the pin looseness prevention circuit comprises: the electronic element to be tested is a three-terminal regulator, the pin looseness detection module and the alarm module connected with the pin looseness detection module comprise three circuits with the same circuit structure, one of the pin looseness detection module comprises a PVI5080 adapter U1, a 2 pin of the PVI5080 adapter U1 is connected with one end of a resistor R1 and a 1 pin of the three-terminal regulator and leads out an output end 1, the other end of the resistor R1 is connected with the anode of a power supply E1, the cathode of the power supply E1 is connected with one end of a relay switch K1, and the other end of the relay switch K1 is connected with the 2 pin of the PVI5080 adapter U1 and the 1 pin of the three-terminal regulator.
3. The adapter circuit of claim 2, wherein the pin looseness prevention circuit comprises: the alarm module comprises an MOS tube FR3910, one end of a grid connecting resistor R2 of the MOS tube FR3910 and an 8 pin of the PVI5080 adapter U1 are connected, the other end of the resistor R2 is connected with a source electrode of the MOS tube FR3910 and then connected with a 5 pin of the PVI5080 adapter U1, a drain electrode of the MOS tube FR3910 is connected with a cathode of a light-emitting diode D1, an anode of the light-emitting diode D1 is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with a power VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517684.XU CN213181974U (en) | 2020-07-28 | 2020-07-28 | Adapter circuit for preventing pin looseness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517684.XU CN213181974U (en) | 2020-07-28 | 2020-07-28 | Adapter circuit for preventing pin looseness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213181974U true CN213181974U (en) | 2021-05-11 |
Family
ID=75796206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021517684.XU Active CN213181974U (en) | 2020-07-28 | 2020-07-28 | Adapter circuit for preventing pin looseness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213181974U (en) |
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2020
- 2020-07-28 CN CN202021517684.XU patent/CN213181974U/en active Active
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