CN221347342U - Transformer fan trouble remote monitoring device - Google Patents
Transformer fan trouble remote monitoring device Download PDFInfo
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- CN221347342U CN221347342U CN202322741404.3U CN202322741404U CN221347342U CN 221347342 U CN221347342 U CN 221347342U CN 202322741404 U CN202322741404 U CN 202322741404U CN 221347342 U CN221347342 U CN 221347342U
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Abstract
The utility model discloses a remote monitoring device for faults of a transformer fan, which relates to the technical field of fan fault monitoring and comprises a bottom shell, wherein the outer side of the bottom shell and a fixed clamping seat are connected with the outer side of a shell, the middle position of the outer side of the bottom shell is fixedly provided with the fixed clamping seat, an antenna, a fan wiring port and a power supply wiring terminal are also arranged on the outer side of the bottom shell, the fan wiring port is arranged on one side of the antenna, the power supply wiring terminal is arranged on the other side of the antenna, a main control board and a wireless module circuit board are arranged on the inner side of the bottom shell, one side of the wireless module circuit board is fixedly arranged at the middle position of the main control board, the other end of the wireless module circuit board is fixedly arranged at the middle position of the inner side of the shell, and wiring ports of the main control board are respectively connected with wiring ports of the fan wiring port and the power supply wiring terminal. The remote monitoring device for the faults of the transformer fan is low in manufacturing cost, can be used for remotely monitoring the faults of the fan, and avoids larger property loss.
Description
Technical Field
The utility model relates to the technical field of fan fault monitoring, in particular to a remote monitoring device for transformer fan faults.
Background
The fault source of the dry type transformer is mainly burnt out due to overheat, a fan is arranged on the conventional arrangement of the dry type transformer, when the excessive temperature of the load is increased to a certain temperature, the fan is started to radiate heat for the transformer, the effect of cooling the transformer is achieved, but the service life of the fan is generally far lower than that of the transformer, the whole transformer is burnt out due to the fact that the cooling effect is not achieved due to untimely discovery of the fan fault, the existing method for monitoring the fan fault is realized in the fan, the fan with the fan fault monitoring is expensive, and a remote alarm function is not achieved, so that improvement is needed.
Disclosure of utility model
The embodiment of the utility model provides a remote monitoring device for faults of a transformer fan, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A transformer fan fault remote monitoring device, comprising: the bottom shell is connected with the outer side of the shell through the fixing clamping seat, the fixing clamping seat is fixedly arranged at the middle position of the outer side of the bottom shell, an antenna, a fan wiring port and a power wiring terminal are further arranged on the outer side of the bottom shell, the fan wiring port is arranged on one side of the antenna, the power wiring terminal is arranged on the other side of the antenna, a main control board and a wireless module circuit board are arranged on the inner side of the bottom shell, one side of the wireless module circuit board is fixedly arranged at the middle position of the main control board, the other end of the wireless module circuit board is fixedly arranged at the middle position of the inner side of the shell, and wiring ports of the main control board are respectively connected with wiring ports of the fan wiring port and the power wiring terminal.
As still further aspects of the invention: the main control board comprises a fan control circuit and a fan current monitoring circuit;
preferably, the fan control circuit is used for controlling fan heating operation of the fan and receiving signals output by the fan current monitoring circuit;
Preferably, the fan current monitoring circuit is used for detecting a stable current value after the fan is normally started and outputting a first detection signal, using the first detection signal as a current threshold value, intermittently detecting the current after the fan is started and outputting a second detection signal, performing absolute value difference processing on the first detection signal and the second detection signal, and outputting a fault signal when the absolute value of the current difference exceeds 1/6 of a normal value;
preferably, the fan control circuit is connected with the fan current monitoring circuit.
As still further aspects of the invention: the wireless module circuit board comprises a wireless data transmission circuit;
Preferably, the wireless data transmission circuit is used for communicating with the cloud service through the 4G signal and pushing the received fault signal to the background system;
Preferably, the wireless data transmission circuit is connected with the fan control circuit.
As still further aspects of the invention: the FAN control circuit comprises se:Sub>A triode Q5, wherein the base electrode of the triode Q5 is connected with one end of se:Sub>A resistor R124 and is connected with se:Sub>A FAN pin of se:Sub>A main control chip through se:Sub>A resistor R123, the other end of the resistor R124 and the emitting electrode of the triode Q5 are grounded, the collecting electrode of the triode Q5 is connected with the anode of se:Sub>A diode D20, the first end of se:Sub>A relay K1, the first end of se:Sub>A relay K2 and the anode of se:Sub>A diode D21, the second end of the relay K1 and the cathode of the diode D20 are both connected with se:Sub>A 12V power VCC, the second end of the relay K2 and the cathode of the diode D21 are both connected with se:Sub>A 12V power VCC, the third end of the relay K1 is connected with the first end of se:Sub>A FAN FAN1, and the fourth end of the relay K1 and the fourth end of the relay K2 are both connected with se:Sub>A mains supply AC-A.
As still further aspects of the invention: the FAN current monitoring circuit comprises a current transformer L10, the current transformer L10 is wound at the load end of a FAN FAN1, a first output end of the current transformer L10 and a second output end of the current transformer L10 are respectively connected with a third end of a rectifier DB2 and a first end of the rectifier DB2, a second end of the rectifier DB2 is connected with one end of a resistor R152 and sequentially connected with a ground end through a resistor R150 and a resistor R149, a fourth end of the rectifier DB2 is grounded, the other end of the resistor R151 is connected with the third end of an operational amplifier U23 and one end of the resistor R153 and is connected with the other end of the resistor R153 through a capacitor C104, an eighth end of the operational amplifier U23 is connected with one end of a 12V power supply VCC and one end of a capacitor C105 through a capacitor C106 and is connected with the other end of the capacitor C105 and the ground end of the capacitor C103, a first end of the operational amplifier U23 is connected with one end of the capacitor C103 through a resistor R152 and is grounded, the other end of the first end of the operational amplifier U23 is connected with the other end of the resistor R154 and the AD pin of a master chip, the other end of the operational amplifier U23 is connected with the other end of the resistor R103 and the other end of the fourth end of the resistor R103 is connected with the resistor C103 and the other end of the fourth end of the resistor C23 through the resistor C103 and the other end of the resistor C23 is grounded, and the other end of the first end of the fourth end of the operational amplifier 23 is connected with the resistor C23 is connected with the end of the resistor C23.
As still further aspects of the invention: the wireless data transmission circuit comprises a communication chip M1, wherein the second end of the communication chip M1 is connected with one end of a winding R71 and is grounded through a capacitor C50, the other end of a resistor R71 is connected with one end of a capacitor C49 and is grounded through a capacitor C51, the other end of the capacitor C49 is connected with a first antenna E1 and is connected with one end of a resistor R68 through an inductor L5, the other end of the resistor R68 is connected with a 3.8V power VCC and is grounded through a capacitor C45, the thirty-fifth end of the communication chip M1 is connected with one end of a capacitor C47 and is connected with a second antenna E2 and one end of a capacitor C46 through a resistor R69, the other end of the capacitor C47 and the other end of the capacitor C46 are grounded, the seventeenth end of the communication chip M1 and the eighteenth end of the communication chip M1 are connected with the third end of a level converter U15 and the second end of the level converter U15, and the twelfth end of the level converter U15 are respectively connected with a 1_RX pin of the master chip and a 1_TX pin of the master chip UART.
Compared with the prior art, the utility model has the beneficial effects that: the remote monitoring device for the faults of the transformer fan is low in manufacturing cost, can be used for remotely monitoring the faults of the fan, and avoids larger property loss.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a first structure of a remote monitoring device for faults of a transformer fan according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a second structure of a remote monitoring device for faults of a transformer fan according to an embodiment of the present utility model.
Fig. 3 is a circuit diagram of a fan control circuit and a fan current monitoring circuit according to an embodiment of the present utility model.
Fig. 4 is a circuit diagram of a connection of a wireless data transmission circuit according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a wireless module circuit board; 2. the main control board and the wiring interface; 3. a bottom case; 4. a power supply terminal; 5. an antenna; 6. a fan wiring port; 7. a housing; 8. and fixing the clamping seat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
In one embodiment, referring to fig. 1 and 2, a remote monitoring device for a failure of a transformer fan includes: the bottom shell 3, the outside of the bottom shell 3 and the fixed clamping seat 8 are all connected with the outside of the shell 7, the fixed clamping seat 8 is fixedly arranged at the middle position of the outside of the bottom shell 3, the antenna 5, the fan wiring port 6 and the power supply wiring terminal 4 are further arranged on the outside of the bottom shell 3, the fan wiring port 6 is arranged on one side of the antenna 5, the power supply wiring terminal 4 is arranged on the other side of the antenna 5, the main control board 2 and the wireless module circuit board 1 are arranged on the inner side of the bottom shell 3, one side of the wireless module circuit board 1 is fixedly arranged at the middle position of the main control board 2, the other end of the wireless module circuit board 1 is fixedly arranged at the middle position of the inner side of the shell 7, and the wiring ports of the main control board 2 are respectively connected with the wiring ports of the fan wiring port 6 and the power supply wiring terminal 4, and the wiring ports of the wireless module circuit board 1 are connected with the wiring ports of the antenna 5.
In a specific embodiment, the wireless module circuit board 1 is provided with an opposite pin, the main control board 2 is provided with an opposite base, and the opposite pin on the wireless module circuit board 1 and the opposite base on the main control board 2 can be subjected to opposite processing; the fixing clamping seat 8 is provided with a buckle, and the fixing clamping seat 8 can be fixed on the transformer through the buckle.
In another embodiment, referring to fig. 3, the main control board 2 includes a fan control circuit and a fan current monitoring circuit;
specifically, the fan control circuit is used for controlling fan heating operation of the fan and receiving signals output by the fan current monitoring circuit;
The fan current monitoring circuit is used for detecting a stable current value after the fan is normally started and outputting a first detection signal, using the first detection signal as a current threshold value, intermittently detecting the current after the fan is started and outputting a second detection signal, performing absolute value difference processing on the first detection signal and the second detection signal, and outputting a fault signal when the absolute value of the current difference exceeds 1/6 of a normal value;
the fan control circuit is connected with the fan current monitoring circuit.
Further, the FAN control circuit comprises se:Sub>A triode Q5, one end of se:Sub>A base electrode of the triode Q5 is connected with one end of se:Sub>A resistor R124 and is connected with se:Sub>A FAN pin of se:Sub>A main control chip through se:Sub>A resistor R123, the other end of the resistor R124 and an emitting electrode of the triode Q5 are grounded, se:Sub>A collecting electrode of the triode Q5 is connected with an anode of se:Sub>A diode D20, se:Sub>A first end of se:Sub>A relay K1, se:Sub>A first end of se:Sub>A relay K2 and an anode of se:Sub>A diode D21, se:Sub>A second end of the relay K1 and se:Sub>A cathode of the diode D20 are both connected with se:Sub>A 12V power VCC, se:Sub>A second end of the relay K2 and se:Sub>A cathode of the diode D21 are both connected with se:Sub>A 12V power VCC, se:Sub>A third end of the relay K1 is connected with se:Sub>A first end of the FAN FAN1, se:Sub>A third end of the relay K2 is connected with se:Sub>A second end of the FAN FAN1, and se:Sub>A fourth end of the relay K1 and se:Sub>A fourth end of the relay K2 are both connected with se:Sub>A mains supply AC-A.
In a specific embodiment, the triode Q5 may be an SS8050 NPN triode, and the power-on states of the relay K1 and the relay K2 are controlled by the conducting state of the triode Q5, so as to control the working state of the FAN 1; the main control chip can adopt an MCU chip, which is not shown in the figure, wherein the signal output by the FAN pin of the main control chip can trigger the work of the triode Q5 through the resistor R123.
Further, the FAN current monitoring circuit includes a current transformer L10, the current transformer L10 is wound around a load end of the FAN1, a first output end of the current transformer L10 and a second output end of the current transformer L10 are respectively connected to a third end of the rectifier DB2 and a first end of the rectifier DB2, a second end of the rectifier DB2 is connected to one end of the resistor R152 and sequentially connected to a ground end through the resistor R150 and the resistor R149, a fourth end of the rectifier DB2 is grounded, the other end of the resistor R151 is connected to a third end of the op-amp U23 and one end of the resistor R153 and is connected to the other end of the resistor R153 and the ground end through the capacitor C104, an eighth end of the op-amp U23 is connected to one end of the 12V power VCC and one end of the capacitor C105 and is connected to the other end of the capacitor C105 and the ground end of the capacitor C106, a second end of the op-amp U23 is connected to one end of the resistor R154 and one end of the capacitor C103 and is grounded through the resistor R152, the first end of the op-amp U23 is connected to the other end of the resistor R154 and the foot of the master control chip AD 23, and the fourth end of the op-amp U23 is grounded.
In a specific embodiment, the rectifier DB2 may be MB65, so as to implement ac-dc conversion; the current transformer L10 can be a CT03C10 transformer; the operational amplifier U23 can be an LM358 operational amplifier, and is matched with a resistor R151, a resistor R152, a resistor R153, a capacitor C104, a capacitor C105, a capacitor C106, a resistor R154 and a capacitor C103 to amplify signals, and the processed signals are transmitted to an AD pin of a main control chip.
In another embodiment, referring to fig. 4, the wireless module circuit board 1 includes a wireless data transmission circuit;
specifically, the wireless data transmission circuit is used for communicating with the cloud service through a 4G signal and pushing the received fault signal to the background system;
the wireless data transmission circuit is connected with the fan control circuit.
Further, the wireless data transmission circuit includes a communication chip M1, the second end of the communication chip M1 is connected to one end of the winding R71 and is grounded through a capacitor C50, the other end of the resistor R71 is connected to one end of the capacitor C49 and is grounded through a capacitor C51, the other end of the capacitor C49 is connected to the first antenna E1 and is connected to one end of the resistor R68 through an inductor L5, the other end of the resistor R68 is connected to a 3.8V power VCC and is grounded through a capacitor C45, the thirty-fifth end of the communication chip M1 is connected to one end of the capacitor C47 and is connected to one end of the second antenna E2 and the capacitor C46 through a resistor R69, the other end of the capacitor C47 and the other end of the capacitor C46 are both grounded, the seventeenth end of the communication chip M1 and the eighteenth end of the communication chip M1 are both connected to the third end of the level shifter U15 and the second end of the level shifter U15, and the twelfth end of the level shifter U15 are respectively connected to the 1_rx pin of the master chip UART and the 1_tx pin of the master chip UART.
In a specific embodiment, the communication chip M1 can be an EC800G-CN 4G communication chip, and wireless communication can be realized by configuring an SMI card; the level shifter U15 can select TXS0104EPW to realize the level conversion of the communication chip M1 and the main control chip, and the main control chip can complete the internet surfing information of the communication chip M1 through serial configuration, so that the main control chip can communicate with the cloud back stage through the communication chip M1, and then the collected fan fault information of the dry-type transformer is transmitted to the back stage, thereby achieving the effect of wireless transmission.
The working principle of the invention is as follows: the FAN foot of the main control chip controls the conduction of the triode Q5, so that the relay K1 and the relay K2 are powered on, the relay K1 and the relay K2 transmit the accessed commercial power AC-A to the FAN FAN1, at the moment, the current transformer L10 detects the stable current value after the FAN is normally started, the operational amplifier U23 is matched with the resistor R151, the resistor R152, the resistor R153, the capacitor C104, the capacitor C105, the capacitor C106, the resistor R154 and the capacitor C103 to process the detected signal, the processed signal is transmitted to the AD foot of the main control chip, the AD foot of the main control chip uses the detected stable current value after the FAN is normally started as se:Sub>A comparison value, the main control chip monitors the detected datse:Sub>A once every 200mS after the FAN is started, the absolute value current difference is calculated between the detected datse:Sub>A and the detected comparison value, at the moment, the absolute value of the current difference exceeds 1/6 of the normal value to represent faults, at the moment, the fault signal is transmitted to the communication chip M1 through the level converter U15, the communication chip M1 and the subsequent transformer station acquire the fault information, and the wireless transformer station achieves the effect of the wireless transformer station.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A remote monitoring device for faults of a transformer fan is characterized in that,
The transformer fan fault remote monitoring device comprises: the novel wireless module comprises a bottom shell (3), wherein the outer side of the bottom shell (3) and a fixing clamping seat (8) are connected with the outer side of a shell (7), the fixing clamping seat (8) is fixedly arranged at the middle position of the outer side of the bottom shell (3), an antenna (5), a fan wiring port (6) and a power supply wiring terminal (4) are further arranged on the outer side of the bottom shell (3), the fan wiring port (6) is arranged on one side of the antenna (5), the power supply wiring terminal (4) is arranged on the other side of the antenna (5), a main control board (2) and a wireless module circuit board (1) are arranged on the inner side of the bottom shell (3), one side of the wireless module circuit board (1) is fixedly arranged at the middle position of the inner side of the main control board (2), and the wiring port of the main control board (2) is connected with the wiring port of the fan wiring port (6) and the wiring port of the power supply wiring terminal (4) respectively.
2. The remote monitoring device for faults of a transformer fan according to claim 1, wherein the main control board (2) comprises a fan control circuit and a fan current monitoring circuit;
The fan control circuit is used for controlling fan heating operation of the fan and receiving signals output by the fan current monitoring circuit;
the fan current monitoring circuit is used for detecting a stable current value after the fan is normally started and outputting a first detection signal, using the first detection signal as a current threshold value, intermittently detecting the current after the fan is started and outputting a second detection signal, performing absolute value difference processing on the first detection signal and the second detection signal, and outputting a fault signal when the absolute value of the current difference exceeds 1/6 of a normal value;
The fan control circuit is connected with the fan current monitoring circuit.
3. A remote monitoring device for faults of a transformer fan according to claim 2, characterized in that the wireless module circuit board (1) comprises a wireless data transmission circuit;
The wireless data transmission circuit is used for communicating with the cloud service through the 4G signal and pushing the received fault signal to the background system;
the wireless data transmission circuit is connected with the fan control circuit.
4. The remote monitoring device for faults of se:Sub>A transformer FAN according to claim 3, wherein the FAN control circuit comprises se:Sub>A triode Q5, se:Sub>A base electrode of the triode Q5 is connected with one end of se:Sub>A resistor R124 and is connected with se:Sub>A FAN pin of se:Sub>A main control chip through the resistor R123, the other end of the resistor R124 is grounded with an emitter electrode of the triode Q5, se:Sub>A collector electrode of the triode Q5 is connected with an anode of se:Sub>A diode D20, se:Sub>A first end of se:Sub>A relay K1, se:Sub>A first end of se:Sub>A relay K2 and an anode of se:Sub>A diode D21, se:Sub>A second end of the relay K1 and se:Sub>A cathode of the diode D20 are both connected with se:Sub>A 12V power supply VCC, se:Sub>A second end of the relay K2 and se:Sub>A cathode of the diode D21 are both connected with se:Sub>A 12V power supply VCC, se:Sub>A third end of the relay K1 is connected with se:Sub>A first end of the FAN FAN1, and se:Sub>A third end of the relay K2 is connected with se:Sub>A second end of the FAN FAN1, and se:Sub>A fourth end of the relay K1 and se:Sub>A fourth end of the relay K2 are both connected with se:Sub>A commercial power AC-A.
5. The remote monitoring device for FAN faults of transformers according to claim 4, wherein the FAN current monitoring circuit comprises a current transformer L10, the current transformer L10 is wound around a load end of a FAN1, a first output end of the current transformer L10 and a second output end of the current transformer L10 are respectively connected with a third end of a rectifier DB2 and a first end of a rectifier DB2, a second end of the rectifier DB2 is connected with one end of a resistor R152 and sequentially connected with a ground end through a resistor R150 and a resistor R149, a fourth end of the rectifier DB2 is grounded, the other end of the resistor R151 is connected with the third end of an operational amplifier U23 and one end of a resistor R153 and connected with the other end of the resistor R153 through a capacitor C104, an eighth end of the operational amplifier U23 is connected with one end of a capacitor C105 and the ground end of a capacitor C106, a second end of the operational amplifier U23 is connected with one end of a capacitor C154 and one end of a capacitor C103 and grounded through a resistor R152, and the other end of the operational amplifier U23 is connected with the other end of a capacitor C103 and the other end of a master chip R154 and the fourth end of the operational amplifier U23 is grounded.
6. The remote monitoring device for transformer fan faults according to claim 5, wherein the wireless data transmission circuit comprises a communication chip M1, a second end of the communication chip M1 is connected to one end of a winding R71 and is grounded through a capacitor C50, the other end of the resistor R71 is connected to one end of a capacitor C49 and is grounded through a capacitor C51, the other end of the capacitor C49 is connected to a first antenna E1 and is connected to one end of a resistor R68 through an inductor L5, the other end of the resistor R68 is connected to a 3.8V power VCC and is grounded through a capacitor C45, a third fifteenth end of the communication chip M1 is connected to one end of a capacitor C47 and is connected to one end of a second antenna E2 and one end of a capacitor C46 through a resistor R69, the other end of the capacitor C47 and the other end of the capacitor C46 are grounded, a seventeenth end of the communication chip M1 and an eighteenth end of the communication chip M1 are connected to a third end of a level shifter U15 and a second end of the level shifter U15, and a twelfth end of the level shifter U15 are respectively connected to a master chip UART1_rx and a master chip UART.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322741404.3U CN221347342U (en) | 2023-10-12 | 2023-10-12 | Transformer fan trouble remote monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322741404.3U CN221347342U (en) | 2023-10-12 | 2023-10-12 | Transformer fan trouble remote monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221347342U true CN221347342U (en) | 2024-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322741404.3U Active CN221347342U (en) | 2023-10-12 | 2023-10-12 | Transformer fan trouble remote monitoring device |
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| Country | Link |
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| CN (1) | CN221347342U (en) |
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2023
- 2023-10-12 CN CN202322741404.3U patent/CN221347342U/en active Active
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