CN219512385U - Electric leakage detection module - Google Patents
Electric leakage detection module Download PDFInfo
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- CN219512385U CN219512385U CN202320319824.XU CN202320319824U CN219512385U CN 219512385 U CN219512385 U CN 219512385U CN 202320319824 U CN202320319824 U CN 202320319824U CN 219512385 U CN219512385 U CN 219512385U
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Abstract
The utility model belongs to the technical field of electric leakage detection, and particularly relates to an electric leakage detection module, which comprises a plurality of relay modules and a detection module, wherein the relay modules respectively comprise a self-checking relay JD1, a public relay JD2 and 6 tested relays JD3-JD8. According to the utility model, the self-checking relay JD1 and the public relay JD2 are controlled to be attracted through the detection simulator J2, after the detection of a PLC (programmable logic controller) externally connected with the pin 4 of the detection simulator J2 is qualified, the self-checking relay JD1 and the public relay JD2 are disconnected, the detection simulator J2 respectively controls 6 to-be-detected relays JD3-JD8 to be attracted independently, the grounding resistance of the pin 8 of the self-checking relay JD1 is detected, and the leakage detection of a circuit is completed through the pin 4 of the detection simulator J2 according to the grounding resistance, so that the accuracy of the leakage detection of a product is improved.
Description
Technical Field
The utility model belongs to the technical field of electric leakage detection, and particularly relates to an electric leakage detection module.
Background
A relay (english name) is an electric control device, and is an electric appliance that generates a predetermined step change in a controlled variable in an electric output circuit when a change in an input variable (excitation variable) reaches a predetermined requirement. It has an interactive relationship between the control system (also called input loop) and the controlled system (also called output loop). It is commonly used in automated control circuits and is actually an "automatic switch" that uses a small current to control the operation of a large current.
When the whole product is subjected to electric leakage detection, self-detection cannot be performed, the error point of electric leakage is difficult to find in the product, and the electric leakage position in the circuit is difficult to detect.
Therefore, it is necessary to invent the leakage detection module to solve the above problems.
Disclosure of Invention
In order to solve the problems, the utility model provides a leakage detection module, wherein the detection simulator J2 controls the self-detection relay JD1 and the public relay JD2 to be attracted, after a PLC (programmable logic controller) externally connected with a pin 4 of the detection simulator J2 detects that the self-detection relay JD1 and the public relay JD2 are qualified, the detection simulator J2 respectively controls the 6 detected relays JD3-JD8 to be attracted independently, the grounding resistance of a pin 8 of the self-detection relay JD1 is detected, the detection of the leakage of a circuit is completed by a pin 4 of the detection simulator J2 according to the grounding resistance, and the leakage detection precision of a product is improved, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the leakage detection module comprises a plurality of relay modules and a detection module, wherein the relay modules respectively comprise a self-checking relay JD1, a public relay JD2 and 6 tested relays JD3-JD8, one ends of the self-checking relay JD1 and the public relay JD2 are grounded, the other ends of the self-checking relay JD1 and the public relay JD2 are electrically connected with the detection module, one ends of the 6 tested relays JD3-JD8 are connected with a connector J1, and a pin 8 of the connector J1 is grounded through a resistor F1.
Further, one end of the tested relay JD3 is connected with the pin 1 of the connector J1, one end of the tested relay JD4 is connected with the pin 2 of the connector J1, one end of the tested relay JD5 is connected with the pin 3 of the connector J1, one end of the tested relay JD6 is connected with the pin 4 of the connector J1, one end of the tested relay JD7 is connected with the pin 5 of the connector J1, and one end of the tested relay JD8 is connected with the pin 6 of the connector J1.
Further, the detection module comprises a detection simulator J2, a pin 4 of the detection simulator J2 is externally connected with a PLC, a pin 1 of the detection simulator J2 is connected with the self-checking relay JD1 and the public relay JD2 through a diode DZ1, a diode D9, a resistor R10, a diode D10, a resistor R12 and a diode D11 which are sequentially connected, and a pin 12 and a pin 11 of the detection simulator J2 are connected with the self-checking relay JD1 and the public relay JD 2.
Further, the pin 1 of the detection simulator J2 is connected to the pin 4 of the detection simulator J2 through a diode DZ1, a diode D9, a resistor R10, and a resistor R11 in sequence, and a test voltage is formed between the resistor R10 and the resistor R11.
Further, the self-checking relay JD1 and the public relay JD2 are attracted, and the pin 1 of the detection simulator J2 is externally connected with the self-checking relay JD1 and the public relay JD2 to disperse test voltages.
Further, the pins 10, 9, … … and 5 of the detection simulator J2 are respectively connected with 6 relays JD3-JD8 to be tested.
Further, the tested relays JD3-JD8 are respectively attracted separately, the ground resistance of the pin 8 of the self-test relay JD1 is detected, and the pin 4 of the detection simulator J2 corresponds to the ground resistance.
The utility model has the technical effects and advantages that:
1. according to the utility model, the self-checking relay JD1 and the public relay JD2 are controlled to be attracted through the detection simulator J2, after the detection of a PLC (programmable logic controller) externally connected with the pin 4 of the detection simulator J2 is qualified, the self-checking relay JD1 and the public relay JD2 are disconnected, the detection simulator J2 respectively controls 6 to-be-detected relays JD3-JD8 to be attracted independently, the grounding resistance of the pin 8 of the self-checking relay JD1 is detected, and the leakage detection of a circuit is completed through the pin 4 of the detection simulator J2 according to the grounding resistance, so that the accuracy of the leakage detection of a product is improved.
2. According to the utility model, when the detection simulator J2 is used for independently detecting the 6 relays JD3-JD8 to be detected, the grounding resistance of the pin 8 of the detection connector J1 after being grounded through the resistor F1 is used, and if the grounding resistance is smaller, the leakage condition of a product can be obtained according to the grounding resistance and the analog signal voltage output by the PLC.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic circuit diagram of a plurality of relay module connections of an embodiment of the present utility model;
fig. 2 shows a circuit diagram of a detection module according to an embodiment of the utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
When the product is subjected to electric leakage detection, self-detection cannot be performed, and the electric leakage position in the circuit is difficult to detect. The utility model provides a leakage detection module, wherein the detection simulator J2 controls the self-detection relay JD1 and the public relay JD2 to be attracted, after a PLC (programmable logic controller) externally connected with a pin 4 of the detection simulator J2 is detected to be qualified, the self-detection relay JD1 and the public relay JD2 are disconnected, the detection simulator J2 respectively controls 6 detected relays JD3-JD8 to be attracted independently, the grounding resistance of a pin 8 of the self-detection relay JD1 is detected, and the detection of the leakage of a circuit is completed by a pin 4 of the detection simulator J2 according to the grounding resistance, so that the leakage detection accuracy of a product is improved.
The utility model provides a leakage detection module, which is shown in fig. 1-2 and comprises a plurality of relay modules and a detection module, wherein the whole circuit is in an initial state, and the analog signal output voltage of the detection module is about 9.5V (the detected product is in a qualified state). The relay modules respectively comprise a self-checking relay JD1, a public relay JD2 and 6 tested relays JD3-JD8, one ends of the self-checking relay JD1 and the public relay JD2 are grounded, the other ends of the self-checking relay JD1 and the public relay JD2 are electrically connected with the detection module, one ends of the 6 tested relays JD3-JD8 are connected with a connector J1, and a pin 8 of the connector J1 is grounded through a resistor F1. After the detection module controls the self-checking relay JD1 and the public relay JD2 to be attracted, the self-checking can be carried out on the detection module, if the self-checking is unqualified, the leakage of the product is indicated, and if the self-checking is qualified, the normal operation of the product is indicated.
As shown in fig. 1, one end of the relay JD3 to be tested is connected with the pin 1 of the connector J1, one end of the relay JD4 to be tested is connected with the pin 2 of the connector J1, one end of the relay JD5 to be tested is connected with the pin 3 of the connector J1, one end of the relay JD6 to be tested is connected with the pin 4 of the connector J1, one end of the relay JD7 to be tested is connected with the pin 5 of the connector J1, and one end of the relay JD8 to be tested is connected with the pin 6 of the connector J1. When the detection module is used for independently detecting 6 relays JD3-JD8 to be detected, the grounding resistance of the pin 8 of the detection connector J1 after being grounded through the resistor F1 is utilized, and if the grounding resistance is smaller, the voltage detected by the detection module is smaller than 6.3V at the moment, so that the condition of product leakage can be obtained.
As shown in fig. 1-2, the detection module includes a detection simulator J2, and a pin 4 of the detection simulator J2 is externally connected with a PLC controller, and a pin 1 of the detection simulator J2 is sequentially connected with a self-checking relay JD1 and a public relay JD2 through a diode DZ1, a diode D9, a resistor R10, a diode D10, a resistor R12 and a diode D11, and a pin 12 and a pin 11 of the detection simulator J2 are respectively connected with the self-checking relay JD1 and the public relay JD 2. When the circuit needs to be self-inspected, the self-inspection relay JD1 and the public relay JD2 are attracted through the pin 12 and the pin 11 of the detection simulator J2, the voltage applied to the detection simulator J2 is grounded through the self-inspection relay JD1 and the public relay JD2, and when the voltage output by the PLC externally connected with the pin 4 of the detection simulator J2 is smaller than 6.3V, the product is leaked; if the voltage output by the PLC is between 6.4 and 9.4V, judging whether the product is qualified or not according to the requirement of a user; if the voltage output by the PLC is greater than 9.4V, the product is qualified in insulation.
As shown in fig. 2, the pin 1 of the detection simulator J2 is connected to the pin 4 of the detection simulator J2 through a diode DZ1, a diode D9, a resistor R10, and a resistor R11 in sequence, and a test voltage is formed between the resistor R10 and the resistor R11. If the self-checking relay JD1 and the public relay JD2 are disconnected, the voltages applied to the self-checking relay JD1 and the public relay JD2 are in an idle state, and the test voltage output by the PLC controller is 9.5V. The self-checking relay JD1 and the public relay JD2 are attracted, and the pin 1 of the detection simulator J2 is externally connected with the self-checking relay JD1 and the public relay JD2 to disperse test voltage. If the self-checking relay JD1 and the public relay JD2 are attracted, the test voltage is divided on the self-checking relay JD1 and the public relay JD2, and the self-checking relay JD1 and the public relay JD2 pull down the analog signal voltage output by the PLC controller.
As shown in fig. 1-2, pins 10, 9, … … and 5 of the detection simulator J2 are respectively connected with 6 relays JD3-JD8 to be tested. The tested relays JD3-JD8 are respectively and independently attracted, the grounding resistance of the pin 8 of the self-checking relay JD1 is detected, and the pin 4 of the detection simulator J2 corresponds to the grounding resistance. After the self-checking is finished, when the 6 tested relays JD3-JD8 are required to be respectively checked, the 6 tested relays JD3-JD8 are sequentially controlled to be respectively attracted through a checking simulator J2, the grounding resistance of a pin 8 of the self-checking relay JD1 is checked, whether the product leaks electricity or not is obtained according to the grounding resistance and the analog signal voltage output by the PLC, the analog signal voltage is between 6.4 and 9.4V, the product is judged to be qualified or unqualified according to the user requirement, the analog signal voltage is larger than 9.4V, and the product is qualified in insulation.
The working principle of the utility model is as follows:
referring to fig. 1-2 of the specification, when self-checking is required to be performed on a circuit, a self-checking relay JD1 and a public relay JD2 are attracted through a pin 12 and a pin 11 of a detection simulator J2, and at the moment, the voltage applied to the detection simulator J2 is grounded through the self-checking relay JD1 and the public relay JD2, and at the moment, when the voltage output by a PLC (programmable logic controller) externally connected with a pin 4 of the detection simulator J2 is smaller than 6.3V, the product leaks; if the voltage output by the PLC is between 6.4 and 9.4V, judging whether the product is qualified or not according to the requirement of a user; if the voltage output by the PLC is greater than 9.4V, the product is qualified in insulation.
After the self-checking is finished, when the 6 tested relays JD3-JD8 are required to be respectively checked, the 6 tested relays JD3-JD8 are sequentially controlled to be respectively attracted through a checking simulator J2, the grounding resistance of a pin 8 of the self-checking relay JD1 is checked, whether the product leaks electricity or not is obtained according to the grounding resistance and the analog signal voltage output by the PLC, the analog signal voltage is between 6.4 and 9.4V, the product is judged to be qualified or unqualified according to the user requirement, the analog signal voltage is larger than 9.4V, and the product is qualified in insulation.
The self-checking relay JD1 and the public relay JD2 are controlled to be attracted through the detection simulator J2, after the detection of a PLC controller externally connected with the pin 4 of the detection simulator J2 is qualified, the self-checking relay JD1 and the public relay JD2 are disconnected, the detection simulator J2 respectively controls 6 to-be-detected relays JD3-JD8 to be attracted independently, the grounding resistance of the pin 8 of the detection self-checking relay JD1 is detected, and the detection of electric leakage to a circuit is completed through the pin 4 of the detection simulator J2 according to the grounding resistance, so that the detection accuracy of electric leakage to a product is improved.
Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The electric leakage detection module is characterized in that: the intelligent relay comprises a plurality of relay modules and a detection module, wherein the relay modules respectively comprise a self-checking relay JD1, a public relay JD2 and 6 tested relays JD3-JD8, one ends of the self-checking relay JD1 and the public relay JD2 are grounded, the other ends of the self-checking relay JD1 and the public relay JD2 are electrically connected with the detection module, one ends of the 6 tested relays JD3-JD8 are connected with a connector J1, and a pin 8 of the connector J1 is grounded through a resistor F1.
2. The electrical leakage detection module of claim 1, wherein:
one end of a relay to be tested JD3 is connected with a pin 1 of a connector J1, one end of a relay to be tested JD4 is connected with a pin 2 of the connector J1, one end of a relay to be tested JD5 is connected with a pin 3 of the connector J1, one end of a relay to be tested JD6 is connected with a pin 4 of the connector J1, one end of a relay to be tested JD7 is connected with a pin 5 of the connector J1, and one end of a relay to be tested JD8 is connected with a pin 6 of the connector J1.
3. The electrical leakage detection module of claim 1, wherein:
the detection module comprises a detection simulator J2, a pin 4 of the detection simulator J2 is externally connected with a PLC controller, a pin 1 of the detection simulator J2 sequentially passes through a diode DZ1, a diode D9, a resistor R10, a diode D10, a resistor R12 and a diode D11 to be respectively connected with a self-checking relay JD1 and a public relay JD2, and a pin 12 and a pin 11 of the detection simulator J2 are respectively connected with the self-checking relay JD1 and the public relay JD 2.
4. The electrical leakage detection module according to claim 3, wherein:
the pin 1 of the detection simulator J2 is connected with the pin 4 of the detection simulator J2 sequentially through a diode DZ1, a diode D9, a resistor R10 and a resistor R11, and a test voltage is formed between the resistor R10 and the resistor R11.
5. The electrical leakage detection module according to claim 3, wherein:
the self-checking relay JD1 and the public relay JD2 are attracted, and the pin 1 of the detection simulator J2 is externally connected with the self-checking relay JD1 and the public relay JD2 to disperse test voltage.
6. The electrical leakage detection module according to claim 3, wherein:
and a pin 10, a pin 9, a pin … … and a pin 5 of the detection simulator J2 are respectively connected with 6 relays JD3-JD8 to be tested.
7. The electrical leakage detection module according to claim 3, wherein:
the tested relays JD3-JD8 are respectively and independently attracted, the grounding resistance of the pin 8 of the self-checking relay JD1 is detected, and the pin 4 of the detection simulator J2 corresponds to the grounding resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320319824.XU CN219512385U (en) | 2023-02-27 | 2023-02-27 | Electric leakage detection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320319824.XU CN219512385U (en) | 2023-02-27 | 2023-02-27 | Electric leakage detection module |
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| Publication Number | Publication Date |
|---|---|
| CN219512385U true CN219512385U (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320319824.XU Active CN219512385U (en) | 2023-02-27 | 2023-02-27 | Electric leakage detection module |
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| CN (1) | CN219512385U (en) |
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- 2023-02-27 CN CN202320319824.XU patent/CN219512385U/en active Active
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