CN219122392U - High-voltage live display fault detection device - Google Patents
High-voltage live display fault detection device Download PDFInfo
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- CN219122392U CN219122392U CN202222040732.6U CN202222040732U CN219122392U CN 219122392 U CN219122392 U CN 219122392U CN 202222040732 U CN202222040732 U CN 202222040732U CN 219122392 U CN219122392 U CN 219122392U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model discloses a fault detection device of a high-voltage live display, which relates to the technical field of power equipment, and comprises: a housing; the first electric connecting piece penetrates through the shell and is positioned at one end outside the shell to be connected with the sensor signal processing module of the high-voltage electrified display; the second electric connecting piece penetrates through the shell and is positioned at one end outside the shell to be connected with the locking relay of the high-voltage electrified display; the sensor detection module is arranged in the shell and connected with the first electric connecting piece and is used for outputting an analog voltage signal to the sensor signal processing module; the locking signal detection module is arranged inside the shell and connected with the second electric connecting piece and used for detecting the working state of the locking relay. The fault detection device for the high-voltage electrified display can rapidly and conveniently detect whether the function of the high-voltage electrified display is normal, avoid repeated power failure maintenance, improve the working efficiency of maintenance personnel and enhance the reliability of power supply.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to a fault detection device for a high-voltage live display.
Background
The high-voltage live display is used in an electric power system, can transmit signals of whether the high-voltage live body is charged or not to the luminous or acoustic element, and displays or locks the high-voltage switch equipment at the same time, thereby playing roles of preventing electrical misoperation of the equipment and guaranteeing personal safety.
In order to strictly test the quality of products and ensure the quality of the high-voltage electrified display when leaving the factory, whether the high-voltage electrified display can work normally or not needs to be detected. At present, the main problems include sensor faults, wiring errors and locking relay faults, and most of the problems are that a maintainer can directly replace a high-voltage live display, and the high-voltage live display can only determine whether defects are eliminated after power transmission. The problem of line and the quality of the replaced spare parts are caused, so that the situation of incomplete elimination occurs, and at the moment, the power failure maintenance needs to be applied again, so that the workload of maintenance personnel is greatly increased, and the reliability of power supply is seriously affected. In addition, a batch of high-voltage electrified displays can be purchased as replacement spare parts in daily work or major repair engineering, and the spare parts can only be checked and accepted by an appearance checking method after being delivered, so that an effective detection way is lacked for sampling check.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the fault detection device for the high-voltage electrified display, which can rapidly and conveniently detect whether the function of the high-voltage electrified display is normal or not.
According to an embodiment of the first aspect of the present utility model, a high voltage live display fault detection device is applied to a high voltage live display, and the high voltage live display fault detection device includes:
a housing;
the first electric connecting piece is arranged on the shell in a penetrating way, and one end of the first electric connecting piece, which is positioned outside the shell, is used for connecting with the sensor signal processing module of the high-voltage electrified display;
the second electric connecting piece is arranged on the shell in a penetrating way, and one end of the second electric connecting piece, which is positioned outside the shell, is used for connecting a locking relay of the high-voltage electrified display;
the sensor detection module is arranged in the shell and connected with one end of the first electric connecting piece, which is positioned in the shell, and is used for outputting an analog voltage signal to the sensor signal processing module;
the locking signal detection module is arranged inside the shell and connected with one end of the second electric connecting piece, which is positioned inside the shell, and is used for detecting the working state of the locking relay.
The fault detection device for the high-voltage electrified display has at least the following beneficial effects:
the sensor signal processing module of the high-voltage electrified display can be connected through the first electric connecting piece, the latching relay of the high-voltage electrified display can be connected through the second electric connecting piece, and the sensor signal processing module can be used for outputting an analog voltage signal to the sensor signal processing module, so that whether the sensor signal processing module can work normally or not can be detected, if the sensor signal processing module works normally, an indication module of the high-voltage electrified display can be lighted, and if the indication module fails, the indication module can display abnormally. If the sensor signal processing module of the high-voltage electrified display detects an analog voltage signal, the locking relay of the high-voltage electrified display can be forcedly locked, and the working state of the locking relay can be detected through the locking signal detection module, so that whether the locking relay fails or not can be detected. According to the fault detection device for the high-voltage electrified display, disclosed by the embodiment of the utility model, the fault detection function of the sensor signal processing module and the fault detection function of the locking relay are integrated, whether the function of the high-voltage electrified display is normal or not can be rapidly and conveniently detected by connecting the first electric connecting piece and the second connecting piece into the high-voltage electrified display, repeated power failure maintenance is avoided, the working efficiency of maintenance personnel is improved, and the reliability of power supply is enhanced.
According to some embodiments of the utility model, the second electrical connector comprises:
the first locking detection terminal is arranged on the shell in a penetrating manner, one end of the first locking detection terminal, which is positioned outside the shell, is used for being connected with a normally closed contact of the locking relay, and one end of the first locking detection terminal, which is positioned inside the shell, is connected with the locking signal detection module;
the second locking detection terminal penetrates through the shell, one end of the second locking detection terminal, which is located outside the shell, is used for being connected with a normally open contact of the locking relay, and one end of the second locking detection terminal, which is located inside the shell, is connected with the locking signal detection module.
According to some embodiments of the utility model, the lockout signal detection module comprises:
a relay state display unit;
the first resistor is connected in series between one end of the first locking detection terminal, which is positioned in the shell, and the relay state display unit.
According to some embodiments of the utility model, the latch signal detection module further includes a second resistor connected in series between an end of the second latch detection terminal inside the housing and the relay state display unit.
According to some embodiments of the utility model, the relay status display unit employs an LED display unit.
According to some embodiments of the utility model, the LED display unit employs a bicolor diode, wherein an anode of the bicolor diode is connected with the first resistor and the second resistor respectively, and a cathode of the bicolor diode is used for connecting with a ground wire.
According to some embodiments of the utility model, the LED display unit includes:
the positive electrode of the first light-emitting diode is connected with the first resistor, and the negative electrode of the first light-emitting diode is connected with the ground wire;
and the anode of the second light emitting diode is connected with the second resistor, and the cathode of the second light emitting diode is connected with the ground wire.
According to some embodiments of the utility model, the first light emitting diode and the second light emitting diode are different in emission color.
According to some embodiments of the utility model, the resistor Rong Qiaoshi oscillator comprises:
an operational amplifier having a positive input, a negative input and an output;
one end of the first positive feedback resistor is connected with the positive input end, and the other end of the first positive feedback resistor is connected with a ground wire;
one end of the first positive feedback capacitor is connected with the positive input end, and the other end of the first positive feedback capacitor is connected with a ground wire;
one end of the second positive feedback resistor is connected with the positive input end;
one end of the second positive feedback capacitor is connected with the other end of the second positive feedback resistor, and the other end of the second positive feedback capacitor is connected with the output end;
one end of the third negative feedback resistor is connected with the negative input end, and the other end of the third negative feedback resistor is connected with the ground wire;
one end of the fourth negative feedback resistor is connected with the negative input end, and the other end of the fourth negative feedback resistor is connected with the output end;
one end of the voltage stabilizing resistor is respectively connected with the other end of the fourth negative feedback resistor and the output end, and the other end of the voltage stabilizing resistor is respectively connected with the output end and the other end of the second positive feedback capacitor;
the negative electrode of the first voltage stabilizing diode is connected with one end of the voltage stabilizing resistor, and the positive electrode of the first voltage stabilizing diode is connected with the other end of the voltage stabilizing resistor;
and the anode of the second zener diode is connected with the cathode of the first zener diode, and the cathode of the second zener diode is connected with the anode of the first zener diode.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is an electrical schematic diagram of a latch signal detection module according to an embodiment of the present utility model;
fig. 2 is an electrical schematic diagram of a sensor detection module according to an embodiment of the utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus 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 utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The fault detection device for a high voltage live display according to the embodiments of the present utility model will be clearly and completely described with reference to fig. 1 to 2, and it is apparent that the embodiments described below are some, but not all, embodiments of the present utility model.
The high-voltage live display fault detection device provided by the embodiment of the utility model is applied to a high-voltage live display and comprises a shell, a first electric connecting piece, a second electric connecting piece, a sensor detection module and a locking signal detection module. The first electric connecting piece is arranged on the shell in a penetrating way, and one end of the first electric connecting piece, which is positioned outside the shell, is used for connecting with the sensor signal processing module of the high-voltage electrified display; the second electric connecting piece is arranged on the shell in a penetrating way, and one end of the second electric connecting piece, which is positioned outside the shell, is used for connecting with a locking relay LS1 of the high-voltage live display; the sensor detection module is arranged in the shell and connected with one end of the first electric connecting piece, which is positioned in the shell, and is used for outputting an analog voltage signal to the sensor signal processing module; the locking signal detection module is arranged inside the shell and connected with one end of the second electric connecting piece, which is positioned inside the shell, and the locking signal detection module is used for detecting the working state of the locking relay LS 1.
The high-voltage live display includes, but is not limited to, a sensor signal processing module, an indication circuit, a latching relay LS1, and the complete circuit structure and specific working principle of the high-voltage live display are known to those skilled in the art, and are not described herein.
The sensor signal processing module of the high-voltage electrified display can be connected through the first electric connecting piece, the fault detection device of the high-voltage electrified display further comprises a power module, after the power module is started, the sensor detection module outputs an analog voltage signal to the sensor signal processing module, at the moment, the display condition of an indication circuit of the high-voltage electrified display is observed, and if the indication circuit is not lighted, the fault of the sensor signal processing module is indicated. It should be noted that, other manners of determining whether the sensor signal processing module is malfunctioning may be adopted, and should not be construed as limiting the present utility model.
The locking relay LS1 of the high-voltage electrified display can be connected through the second electric connecting piece, after the high-voltage electrified display detects an analog voltage signal, the locking relay LS1 is forcedly locked, whether a contact of the locking relay LS1 is at a normally closed contact or a normally open contact is detected through the locking signal detection module, the working state of the locking relay LS1 is displayed, and whether the locking relay LS1 fails or not is judged by comparing the working state of the locking relay LS1 displayed by the locking signal detection module with the working state of the actual locking relay LS 1.
The specific structure of the housing is not limited herein, as long as the high-voltage live display can be conveniently detected by the first and second electric connectors.
According to the fault detection device for the high-voltage live display, disclosed by the embodiment of the utility model, the sensor signal processing module of the high-voltage live display can be connected through the first electric connecting piece, the locking relay LS1 of the high-voltage live display can be connected through the second electric connecting piece, and the sensor detection module can output an analog voltage signal to the sensor signal processing module, so that whether the sensor signal processing module can work normally or not can be detected, if the sensor signal processing module works normally, the indication module of the high-voltage live display can light, and if the sensor signal processing module breaks down, the indication module can display abnormally. If the sensor signal processing module of the high-voltage live display detects an analog voltage signal, the locking relay LS1 of the high-voltage live display can be forcedly locked, and the working state of the locking relay LS1 can be detected through the locking signal detection module, so that whether the locking relay LS1 has faults or not can be detected. According to the fault detection device for the high-voltage electrified display, disclosed by the embodiment of the utility model, the fault detection function of the sensor signal processing module and the fault detection function of the locking relay LS1 are integrated, whether the function of the high-voltage electrified display is normal or not can be rapidly and conveniently detected by connecting the first electric connecting piece and the second connecting piece into the high-voltage electrified display, repeated power failure overhaul is avoided, the working efficiency of an maintainer is improved, and the reliability of power supply is enhanced.
In some embodiments of the present utility model, referring to fig. 1, the second electrical connector includes a first latch detection terminal and a second latch detection terminal. The first locking detection terminal is arranged on the shell in a penetrating manner, one end of the first locking detection terminal, which is positioned outside the shell, is used for being connected with a normally closed contact of the locking relay LS1, and one end of the first locking detection terminal, which is positioned inside the shell, is connected with the locking signal detection module; the second locking detection terminal penetrates through the shell, one end of the second locking detection terminal, which is located outside the shell, is used for being connected with a normally open contact of the locking relay LS1, and one end of the second locking detection terminal, which is located inside the shell, is connected with the locking signal detection module. The first locking detection terminal and the second locking detection terminal all adopt screw terminals, can directly access to the high-voltage live display, the access mode is simple and convenient, easy to operate, can rapidly detect whether the high-voltage live display breaks down, and can be suitable for mass quality detection of the high-voltage live display. The locking signal detection module is connected with one end of the first locking detection terminal, which is positioned in the shell, and one end of the second locking detection terminal, which is positioned in the shell, respectively, so that whether the contact of the locking relay LS1 is a normally closed contact or a normally open contact can be detected, and the working state of the locking relay LS1 is displayed, and the detection result is more visual.
The first latch detecting terminal and the second latch detecting terminal may also be configured by other connection structures, and the present utility model is not limited thereto.
In some embodiments of the present utility model, referring to fig. 1, the latch signal detection module includes a relay status display unit and a first resistor R1. The first resistor R1 is connected in series between one end of the first locking detection terminal, which is positioned inside the shell, and the relay state display unit. The normally closed contact of the latching relay LS1 and the relay state display unit can be connected through the first resistor R1, so that the relay state display unit detects whether the contact of the latching relay LS1 is in the normally closed contact or not, and the specific principle is the prior art known to the person skilled in the art and is not repeated here.
In some embodiments of the present utility model, referring to fig. 1, the latch signal detection module further includes a second resistor R2, and the second resistor R2 is connected in series between one end of the second latch detection terminal inside the housing and the relay state display unit. The normally open contact of the latching relay LS1 and the relay state display unit can be connected through the second resistor R2, so that the relay state display unit detects whether the contact of the latching relay LS1 is in the normally open contact or not, and the specific principle is the prior art known to those skilled in the art and is not described herein.
In some embodiments of the present utility model, referring to fig. 1, the relay status display unit employs an LED display unit. The working state of the latching relay LS1 can be represented through the display state of the LED through the LED display unit, whether the contact of the latching relay LS1 is in the normally open contact or the normally closed contact is judged through the display state of the LED, and the detection result is more visual. Specifically, the present utility model may be represented by different colors, or may be represented by two states, bright and non-bright, and the specific display manner should not be construed as limiting the present utility model, as long as it is possible to distinguish whether the contact of the latching relay LS1 is in the normally open contact or the normally closed contact.
In some embodiments of the present utility model, referring to fig. 1, the led display unit employs a bi-color diode D1, wherein the anode of the bi-color diode D1 is connected to a first resistor R1 and a second resistor R2, respectively, and the cathode is connected to a ground line. When the contact of the latching relay LS1 is in a normally open contact, the bicolor diode D1 lights a red light, and when the contact of the latching relay LS1 is in a normally closed contact, the bicolor diode D1 lights a green light, and two states of the latching relay LS1 are respectively displayed by using the bicolor diode D1. When the state of the latching relay LS1 corresponds to the color of the non-colored diode D1 or the two-colored diode D1 is in the off state all the time, the latching relay LS1 of the high-voltage live display is judged to be abnormal, and the detection result is more visual. The color of the two-color diode D1 may be other colors as long as the two states of the latching relay LS1 can be distinguished, and the present utility model is not limited thereto.
In some embodiments of the present utility model, the LED display unit includes a first light emitting diode and a second light emitting diode. The positive electrode of the first light-emitting diode is connected with the first resistor R1, and the negative electrode of the first light-emitting diode is connected with the ground wire; and the anode of the second light emitting diode is connected with the second resistor R2, and the cathode of the second light emitting diode is connected with the ground wire. The LED display unit can also adopt two light emitting diodes, namely a first light emitting diode and a second light emitting diode, wherein the first light emitting diode is used for detecting whether the contact of the locking relay LS1 is in a normally closed contact or not, the second light emitting diode is used for detecting whether the contact of the locking relay LS1 is in a normally open contact or not, and the first light emitting diode and the second light emitting diode can distinguish two states of the locking relay LS1, so that whether the locking relay LS1 works abnormally or not is judged, and the detection result is more visual.
In some embodiments of the present utility model, the first light emitting diode and the second light emitting diode emit light of different colors. When the contact of the latching relay LS1 is in the normally open contact, the first light-emitting diode lights up red light, and when the contact of the latching relay LS1 is in the normally closed contact, the second light-emitting diode lights up green light, and two states of the latching relay LS1 are respectively displayed by utilizing different light-emitting colors of the first light-emitting diode and the second light-emitting diode. When the state of the locking relay LS1 corresponds to the luminous state of the first light emitting diode and the second light emitting diode, or the first light emitting diode and the second light emitting diode are in the extinguishing state all the time, the locking relay LS1 of the high-voltage electrified display is judged to be abnormal, and the detection result is more visual. The emission colors of the first light emitting diode and the second light emitting diode may be other colors, so long as the two states of the latching relay LS1 can be distinguished, and the present utility model is not limited thereto.
In some embodiments of the present utility model, referring to fig. 2, the sensor detection module includes an operational amplifier U1, a first positive feedback resistor R3, a first positive feedback capacitor C1, a second positive feedback resistor R4, a second positive feedback capacitor C2, a third negative feedback resistor R5, a fourth negative feedback resistor R6, a zener resistor R7, a first zener diode D2, and a second zener diode D3. An operational amplifier U1 having a positive input terminal, a negative input terminal, and an output terminal; one end of the first positive feedback resistor R3 is connected with the positive input end, and the other end of the first positive feedback resistor R3 is connected with the ground wire; one end of the first positive feedback capacitor C1 is connected with the positive input end, and the other end of the first positive feedback capacitor C1 is connected with the ground wire; one end of the second positive feedback resistor R4 is connected with the positive input end; one end of the second positive feedback capacitor C2 is connected with the other end of the second positive feedback resistor R4, and the other end of the second positive feedback capacitor C is connected with the output end; one end of the third negative feedback resistor R5 is connected with the negative input end, and the other end of the third negative feedback resistor R5 is connected with the ground wire; one end of the fourth negative feedback resistor R6 is connected with the negative input end, and the other end of the fourth negative feedback resistor R6 is connected with the output end; one end of the voltage stabilizing resistor R7 is respectively connected with the other end and the output end of the fourth negative feedback resistor R6, and the other end of the voltage stabilizing resistor R7 is respectively connected with the output end and the other end of the second positive feedback capacitor C2; the cathode of the first zener diode D2 is connected with one end of the zener resistor R7, and the anode of the first zener diode D2 is connected with the other end of the zener resistor R7; and the anode of the second zener diode D3 is connected with the cathode of the first zener diode D2, and the cathode of the second zener diode D2 is connected with the anode of the first zener diode D2. The operational amplifier U1, the first positive feedback resistor R3, the first positive feedback capacitor C1, the second positive feedback resistor R4 and the second positive feedback capacitor C2 form an RC positive feedback oscillating circuit, and the RC positive feedback oscillating circuit is used for initiating an oscillating waveform (changing RC values to obtain different oscillating frequencies), and the third negative feedback resistor R5, the fourth negative feedback resistor R6 and the operational amplifier U1 form a negative feedback amplifying circuit and are used for providing an output signal with stable amplification factor (changing the ratio of the third negative feedback resistor R5 to the fourth negative feedback resistor R6 to change the amplitude of the output signal). Thus, by adjusting the above-mentioned parameters, an alternating current signal (i.e., an analog voltage signal) of 0.5V/50Hz can be generated and outputted through the oscillation output terminal OUT of fig. 2, which is used as a sensor signal for simulating the high voltage charged display, so that it is possible to detect whether the sensor signal processing module of the high voltage charged display is defective.
In some embodiments, the operational amplifier U1 employs LMVs 321-TR, but the model number should not be construed as limiting the utility model. In fig. 2, +v1 is +3.6v. V1 is-3.6V, but the particular voltage value should not be construed as limiting the utility model.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (9)
1. A high voltage live display fault detection device, applied to a high voltage live display, characterized in that the high voltage live display fault detection device comprises:
a housing;
the first electric connecting piece is arranged on the shell in a penetrating way, and one end of the first electric connecting piece, which is positioned outside the shell, is used for connecting with the sensor signal processing module of the high-voltage electrified display;
the second electric connecting piece is arranged on the shell in a penetrating way, and one end of the second electric connecting piece, which is positioned outside the shell, is used for connecting a locking relay of the high-voltage electrified display;
the sensor detection module is arranged in the shell and connected with one end of the first electric connecting piece, which is positioned in the shell, and is used for outputting an analog voltage signal to the sensor signal processing module;
the locking signal detection module is arranged inside the shell and connected with one end of the second electric connecting piece, which is positioned inside the shell, and is used for detecting the working state of the locking relay.
2. The high voltage live display fault detection device of claim 1, wherein the second electrical connection comprises:
the first locking detection terminal is arranged on the shell in a penetrating manner, one end of the first locking detection terminal, which is positioned outside the shell, is used for being connected with a normally closed contact of the locking relay, and one end of the first locking detection terminal, which is positioned inside the shell, is connected with the locking signal detection module;
the second locking detection terminal penetrates through the shell, one end of the second locking detection terminal, which is located outside the shell, is used for being connected with a normally open contact of the locking relay, and one end of the second locking detection terminal, which is located inside the shell, is connected with the locking signal detection module.
3. The high voltage live display fault detection device of claim 2, wherein the lockout signal detection module comprises:
a relay state display unit;
the first resistor is connected in series between one end of the first locking detection terminal, which is positioned in the shell, and the relay state display unit.
4. A high voltage live display fault detection device according to claim 3, wherein the latch signal detection module further comprises a second resistor connected in series between an end of the second latch detection terminal inside the housing and the relay status display unit.
5. The fault detection device for a high voltage live display according to claim 3 or 4, wherein the relay status display unit employs an LED display unit.
6. The fault detection device for a high voltage live display according to claim 5, wherein the LED display unit employs a two-color diode, an anode of the two-color diode is connected to the first resistor and the second resistor, respectively, and a cathode of the two-color diode is connected to a ground line.
7. The high voltage live display fault detection device of claim 6, wherein the LED display unit comprises:
the positive electrode of the first light-emitting diode is connected with the first resistor, and the negative electrode of the first light-emitting diode is connected with the ground wire;
and the anode of the second light emitting diode is connected with the second resistor, and the cathode of the second light emitting diode is connected with the ground wire.
8. The device according to claim 7, wherein the first light emitting diode and the second light emitting diode are different in emission color.
9. The high voltage live display fault detection device of claim 1, wherein the sensor detection module comprises:
an operational amplifier having a positive input, a negative input and an output;
one end of the first positive feedback resistor is connected with the positive input end, and the other end of the first positive feedback resistor is connected with a ground wire;
one end of the first positive feedback capacitor is connected with the positive input end, and the other end of the first positive feedback capacitor is connected with a ground wire;
one end of the second positive feedback resistor is connected with the positive input end;
one end of the second positive feedback capacitor is connected with the other end of the second positive feedback resistor, and the other end of the second positive feedback capacitor is connected with the output end;
one end of the third negative feedback resistor is connected with the negative input end, and the other end of the third negative feedback resistor is connected with the ground wire;
one end of the fourth negative feedback resistor is connected with the negative input end, and the other end of the fourth negative feedback resistor is connected with the output end;
one end of the voltage stabilizing resistor is respectively connected with the other end of the fourth negative feedback resistor and the output end, and the other end of the voltage stabilizing resistor is respectively connected with the output end and the other end of the second positive feedback capacitor;
the negative electrode of the first voltage stabilizing diode is connected with one end of the voltage stabilizing resistor, and the positive electrode of the first voltage stabilizing diode is connected with the other end of the voltage stabilizing resistor;
and the anode of the second zener diode is connected with the cathode of the first zener diode, and the cathode of the second zener diode is connected with the anode of the first zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222040732.6U CN219122392U (en) | 2022-08-03 | 2022-08-03 | High-voltage live display fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222040732.6U CN219122392U (en) | 2022-08-03 | 2022-08-03 | High-voltage live display fault detection device |
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| Publication Number | Publication Date |
|---|---|
| CN219122392U true CN219122392U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222040732.6U Active CN219122392U (en) | 2022-08-03 | 2022-08-03 | High-voltage live display fault detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN219122392U (en) |
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2022
- 2022-08-03 CN CN202222040732.6U patent/CN219122392U/en active Active
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