CN214622994U - Line fault diagnosis circuit for high-current electric equipment - Google Patents
Line fault diagnosis circuit for high-current electric equipment Download PDFInfo
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- CN214622994U CN214622994U CN202120376297.7U CN202120376297U CN214622994U CN 214622994 U CN214622994 U CN 214622994U CN 202120376297 U CN202120376297 U CN 202120376297U CN 214622994 U CN214622994 U CN 214622994U
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- electric equipment
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- intelligent current
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Abstract
The utility model discloses a line fault diagnosis circuit for heavy current electric equipment, which comprises a controller, an intelligent current switch, a first resistor and electric equipment; the control port of the intelligent current switch is connected with the output end of the controller, the input port of the intelligent current switch is used for being connected with a power supply, and the output port of the intelligent current switch is connected with the input port of the controller; two ends of the first resistor are respectively connected with the input port and the output port of the intelligent current switch; and one end of the electric equipment is connected with the output port of the intelligent current switch, and the other end of the electric equipment is grounded. The utility model discloses can realize the short circuit or the open circuit detection of consumer, accomplish the intelligent diagnosis of trouble.
Description
Technical Field
The utility model belongs to the failure diagnosis field, concretely relates to a line fault diagnosis circuit for heavy current consumer.
Background
The general controller for the engineering machinery can diagnose the open circuit or the short circuit of the line of the low-current equipment (such as a solenoid valve) directly connected with the output port of the general controller for the engineering machinery, but for the electric equipment with larger current, such as a vibration motor, an electric lubrication pump and the like commonly used for the engineering machinery, the general controller cannot be directly connected with the general controller (generally, the general controller is indirectly controlled by a relay and the like) because the current is too large, and the open circuit or the short circuit of the line cannot be diagnosed through the diagnostic port of the controller.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a line fault diagnosis circuit for heavy current consumer can realize the short circuit or the open circuit detection of consumer, accomplishes the intelligent diagnosis of trouble.
In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a line fault diagnostic circuit for a high current consumer, comprising:
a controller;
the control port of the intelligent current switch is connected with the output port of the controller, the input port of the intelligent current switch is used for being connected with a power supply, and the output port of the intelligent current switch is connected with the input port of the controller;
the two ends of the first resistor are respectively connected with the input port and the output port of the intelligent current switch;
and one end of the electric equipment is connected with the output port of the intelligent current switch, and the other end of the electric equipment is grounded.
Optionally, when the controller outputs a high level to the control terminal of the intelligent current switch, the input terminal and the output terminal of the intelligent current switch are turned on, so that the electrical device operates.
Optionally, when the input terminal and the output terminal of the intelligent current switch are not turned on, a current flows through the first resistor and then goes to the ground through the electric equipment, and meanwhile, the output terminal of the intelligent current switch generates a voltage signal and sends the voltage signal to the input terminal of the controller.
Optionally, when the line of the electric device is disconnected, the voltage at the output end of the intelligent current switch is raised to the power supply voltage and is identified by the input port of the controller.
Optionally, when the line of the electric device is short-circuited to ground, the voltage at the output end of the intelligent current switch is pulled down to 0V, which is identified by the input port of the controller.
Optionally, when the electrical device is broken down and conducted to ground, the voltage at the output end of the intelligent current switch is pulled down to 0V, which is identified by the input port of the controller.
Optionally, the diagnostic circuit further includes a first indicator light, one end of the first indicator light is connected to the output end of the controller, and the other end of the first indicator light is grounded.
Optionally, the diagnostic circuit further includes a second indicator light, one end of the second indicator light is connected to the output end of the intelligent current switch, and the other end of the second indicator light is grounded and used for displaying the on/off state of the line of the electric equipment.
Optionally, the intelligent current switch is a BTS 550P-type intelligent current switch.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a line fault diagnosis circuit for heavy current consumer can realize the short circuit or the open circuit detection of consumer, accomplishes the intelligent diagnosis of trouble.
Additionally, the utility model discloses well intelligent current switch who chooses for use compares relay not only small, the price is low, has functions such as overload protection, current limitation, short-circuit protection, overheat protection, overvoltage protection moreover.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:
fig. 1 is a circuit diagram of a diagnostic circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description of the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a circuit fault diagnosis circuit for heavy current consumer, include:
the controller U can be purchased from the market directly, and the structure of the controller U is not improved by the utility model;
an intelligent current switch J1, wherein a control port 2 is connected with an output port DUT36 of the controller U, an input port 3 is used for being connected with a power supply, and an output port 1 is connected with an input port AI16 of the controller U; the intelligent current switch in the utility model can be purchased directly from the market, the structure of the intelligent current switch is not improved, for example, the intelligent current switch with the model of BTS 550P can be selected;
a first resistor R1, two ends of which are respectively connected with the input port 3 and the output port 1 of the intelligent current switch J1; in a specific implementation process, the first resistor R1 may be a resistor of 10k Ω;
one end of the electric equipment H2 is connected with the output port 1 of the intelligent current switch J1, and the other end of the electric equipment H2 is grounded to GND; in a specific implementation, the electric device H2 may be a speaker with a resistance value of only a few ohms.
The working principle of the diagnostic circuit of the present invention is described below with reference to fig. 1, specifically:
the controller outputs 24V high level to a control port 2 of the intelligent current switch, so that an output port 1 and an input port 3 of the intelligent current switch J1 are conducted, and the electric equipment works.
When the output port 1 and the input port 3 of the intelligent current switch J1 are not conducted, a first resistor R1 of 10k Ω is connected, and when the output port 1 and the input port 3 of the intelligent current switch J1 are not conducted, current flows through the first resistor R1, and then flows to the ground through the electric equipment H2, since the resistance of the electric equipment H2 is usually only a few ohms, a small voltage is generated at the output port 1 of the intelligent current switch J1 to the AI16 of the controller, which belongs to a normal voltage when the electric equipment H2 does not work and the line has no fault, if the line of the electric equipment H2 is disconnected (such as the line 1 or the line 2 in fig. 1), the voltage at the output port 1 of the intelligent current switch J1 is raised to a power supply voltage, and the voltage can also be identified by the AI16 port of the controller; if the line of the consumer H2 is shorted to ground or the consumer H2 is broken down to conduct to ground (line 1 in fig. 1), the voltage at output port 1 of the smart current switch J1 is pulled down to 0V. The controller AI16 can determine whether the line of the electrical equipment H2 is open or short by recognizing different voltages.
In a specific embodiment of the present invention, in order to detect the signal output state of the controller in real time, the diagnostic circuit further includes a first indicator light D1, one end of the first indicator light D1 is connected to the output end of the controller U, and the other end is grounded GND.
The utility model discloses a in a specific embodiment, in order to show consumer H2's circuit break-make in real time, diagnostic circuit still includes second pilot lamp D2, second pilot lamp D2 one end with intelligence current switch J1's output links to each other, other end ground connection GND for show consumer H2's circuit break-make.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A line fault diagnostic circuit for a high current consumer, comprising:
a controller;
the control port of the intelligent current switch is connected with the output port of the controller, the input port of the intelligent current switch is used for being connected with a power supply, and the output port of the intelligent current switch is connected with the input port of the controller;
the two ends of the first resistor are respectively connected with the input port and the output port of the intelligent current switch;
and one end of the electric equipment is connected with the output port of the intelligent current switch, and the other end of the electric equipment is grounded.
2. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: when the controller outputs high level to the control end of the intelligent current switch, the input end and the output end of the intelligent current switch are conducted, so that the electric equipment works.
3. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: when the input end and the output end of the intelligent current switch are not conducted, current flows through the first resistor and then goes to the ground through the electric equipment, and meanwhile, the output end of the intelligent current switch generates a voltage signal and sends the voltage signal to the input end of the controller.
4. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: when the line of the electric equipment is disconnected, the voltage of the output end of the intelligent current switch is raised to the power supply voltage and is identified by the input port of the controller.
5. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: when the line of the electric equipment is short-circuited to the ground, the voltage of the output end of the intelligent current switch is pulled down to 0V and is identified by the input port of the controller.
6. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: when the electric equipment is broken down and conducted to the ground, the voltage of the output end of the intelligent current switch is pulled down to 0V and is identified by the input port of the controller.
7. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: the diagnostic circuit further comprises a first indicator light, one end of the first indicator light is connected with the output end of the controller, and the other end of the first indicator light is grounded.
8. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: the diagnosis circuit further comprises a second indicator light, one end of the second indicator light is connected with the output end of the intelligent current switch, and the other end of the second indicator light is grounded and used for displaying the on-off state of the line of the electric equipment.
9. A line fault diagnosis circuit for a high current consumer according to claim 1, characterized in that: the intelligent current switch is a BTS 550P type intelligent current switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376297.7U CN214622994U (en) | 2021-02-19 | 2021-02-19 | Line fault diagnosis circuit for high-current electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376297.7U CN214622994U (en) | 2021-02-19 | 2021-02-19 | Line fault diagnosis circuit for high-current electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214622994U true CN214622994U (en) | 2021-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120376297.7U Active CN214622994U (en) | 2021-02-19 | 2021-02-19 | Line fault diagnosis circuit for high-current electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214622994U (en) |
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2021
- 2021-02-19 CN CN202120376297.7U patent/CN214622994U/en active Active
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