CN217211187U - Capacitor temperature detection device - Google Patents
Capacitor temperature detection device Download PDFInfo
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- CN217211187U CN217211187U CN202220789427.4U CN202220789427U CN217211187U CN 217211187 U CN217211187 U CN 217211187U CN 202220789427 U CN202220789427 U CN 202220789427U CN 217211187 U CN217211187 U CN 217211187U
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Abstract
The embodiment of the utility model discloses a capacitor temperature detection device, which is applied to the technical field of electronics and comprises a data processing module, a selector switch and a plurality of temperature sensors; each temperature sensor is used for correspondingly measuring the temperature data of one or a group of capacitors to be measured; the selection switch is connected with the data processing module and is used for selectively communicating a passage where one or more temperature sensors are located under the control of the data processing module; the data processing module is connected with the selector switch and the controller and used for controlling the selector switch to be switched on to measure the temperature data of the target capacitor by the corresponding temperature sensor when receiving a command of measuring the temperature of the target capacitor in the capacitor to be measured sent by the controller, and transmitting the measured temperature data to the controller for temperature analysis after filtering treatment.
Description
Technical Field
The utility model belongs to the technical field of the electron, especially, relate to a condenser temperature-detecting device.
Background
In the production and aging process of the capacitor, burrs or impurities exist in aluminum foil or electrolytic paper of the capacitor, so that the capacitor can be ignited in the aging process, and the problems of explosion or bulging of the capacitor and the like can be caused.
The existing capacitor monitoring devices usually determine whether the capacitor is abnormal by detecting current or voltage, and the existing capacitor monitoring devices have the disadvantages of complex circuit, high cost and influence on processing efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a capacitor temperature detection device aims at solving the problem that exists among the prior art to capacitor performance detection with high costs and treatment effeciency receive the influence.
An embodiment of the utility model provides a condenser temperature-detecting device, include:
the temperature control system comprises a data processing module, a selection switch and a plurality of temperature sensors; each temperature sensor is used for correspondingly measuring the temperature data of one or a group of capacitors to be measured; the selection switch is connected with the data processing module and is controlled by the data processing module to selectively communicate with a passage where one or more temperature sensors are located; the data processing module is connected with the selector switch and the controller and used for controlling the selector switch to be switched on to enable the corresponding temperature sensor to measure the temperature data of the target capacitor when receiving an instruction sent by the controller to measure the temperature of the target capacitor in the capacitor to be measured, filtering the measured temperature data and transmitting the filtered temperature data to the controller for temperature analysis.
Further, the capacitor temperature detection device further comprises a signal amplification module; the signal amplification module is connected with the plurality of temperature sensors and the data processing module and used for amplifying the temperature data measured by the temperature sensors and transmitting the temperature data to the data processing module.
Further, the data processing module comprises: the data acquisition module, the data processing module and the data transmission module; the data acquisition module is connected with the signal amplification module and the data processing module, the data processing module is connected with the selector switch, and the data transmission module is connected with the data processing module and the controller; the data processing module is used for controlling the selection switch to be connected with the temperature sensor for measuring the temperature data of the target capacitor; the data acquisition module is used for acquiring the amplified temperature data output by the signal amplification module, sending the temperature data to the data processing module, processing the temperature data, and sending the processed temperature data to the controller through the data transmission module.
Further, the capacitor temperature detection device also comprises a sensor power supply module; the sensor power supply module is connected with the plurality of temperature sensors and used for supplying power to the plurality of temperature sensors.
Further, the temperature sensor is a non-contact temperature sensor.
Further, the non-contact temperature sensor is embodied as a thermopile.
Further, the sensor power supply module includes: the power supply comprises a power supply source, a first filter capacitor, a second filter capacitor, a voltage regulator tube, a third filter capacitor and a fourth filter capacitor; two ends of the first filter capacitor and the second filter capacitor are respectively connected with two ends of the power supply source and two ends of the third filter capacitor and the fourth filter capacitor; one end of the voltage-stabilizing tube is connected with one ends of the first filter capacitor and the second filter capacitor, and the other end of the voltage-stabilizing tube is connected with the other ends of the third filter capacitor and the fourth filter capacitor.
Further, the data processing module comprises a single chip microcomputer, an AD chip or a programmable logic controller.
Further, the signal amplification module comprises an operational amplifier; the thermopile is connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the singlechip.
Known from the embodiment of the present invention, the capacitor temperature detecting device includes a data processing module, a selection switch and a plurality of temperature sensors, each of the temperature sensors is used for measuring temperature data of a capacitor to be measured correspondingly, the data processing module is connected to the selection switch and the controller, and is used for controlling the selection switch to switch on the corresponding temperature sensor to measure the temperature data of the target capacitor when receiving an instruction sent by the controller to measure the temperature of the target capacitor in the capacitor to be measured, and transmitting the measured temperature data to the controller after filtering processing for temperature analysis control, so that when the controller analyzes temperature abnormality, the module controlling charging the target capacitor reduces the charging current or accelerates the feeding speed to reduce the charging time, thereby reducing the bottom swelling or explosion probability of the target capacitor, the capacitor temperature detection device is simple in structure, low in cost and less in calculation data, improves the processing efficiency, timely controls the capacitor to stop aging processing in the capacitor aging process, optimizes the aging process, reduces the temperature of the capacitor by reducing charging current and the like, reduces the probability of capacitor bulging or explosion, and reduces the damage rate of the capacitor.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a capacitor temperature detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a capacitor temperature detection apparatus according to another embodiment of the present invention;
fig. 3 is a schematic circuit structure diagram of a sensor power supply module in the capacitor temperature detection apparatus according to the embodiment of the present invention;
fig. 4A is a schematic circuit connection diagram of a non-contact temperature sensor in a capacitor temperature detection apparatus according to an embodiment of the present invention;
fig. 4B is a schematic diagram of a circuit connection structure of an operational amplifier in the capacitor temperature detecting device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a circuit connection structure of a data processing module in the capacitor temperature detecting device according to an embodiment of the present invention.
Detailed Description
To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a capacitor temperature detecting device provided in an embodiment of the present invention, the capacitor temperature detecting device is connected to a controller, and is configured to send temperature data of a detected capacitor to the controller for analysis and processing in a capacitor aging process, and when the temperature data is abnormal, stop the capacitor aging process, or send an alarm to remind a user of the capacitor temperature abnormality. The capacitor temperature detection device includes:
a data processing module 10, a selection switch 20 and a plurality of temperature sensors 30;
each temperature sensor 30 is for measuring temperature data of one or a group of capacitors to be measured, including real-time temperature of the capacitor to be measured;
the temperature sensor 30 is a non-contact temperature sensor, and may be specifically a thermopile, and measures temperature data of the capacitor to be measured by an infrared method.
The selector switch 20 is connected to the data processing module 10, and under the control of the data processing module 10, selects a path in which one or more temperature sensors 30 are connected, so that the temperature sensor 30 in the path can measure the real-time temperature of the capacitor to be measured. The selector switch 20 is a multi-way selector switch that can simultaneously switch on the path of one or more temperature sensors 30.
In fig. 1, three temperature sensors 30 are taken as an example, and the plurality of temperature sensors 30 may be in other numbers, which is not limited by the embodiment.
The data processing module 10 is connected to the selection switch 20 and the controller 40, and is configured to, when receiving an instruction sent by the controller 40 to measure a temperature of a target capacitor in each capacitor 30 to be measured, control the selection switch 20 to switch on a path where a corresponding temperature sensor 30 is located, that is, switch on the corresponding temperature sensor 30 according to the instruction, measure temperature data of the target capacitor indicating the temperature measurement of the instruction, where the current instruction indicates the current instruction, the corresponding temperature sensor is a temperature sensor for correspondingly measuring a real-time temperature of the target capacitor in each sensor, the temperature sensor 30 sends the measured real-time temperature of the target capacitor in a signal form, the data processing module 10 filters error data such as the measured temperature data not within a measurement range, and transmits the error data to the controller 40 for temperature analysis control, and the controller 40 may specifically analyze the temperature of the target capacitor at different times according to the received temperature data Judging whether a temperature value exceeds a preset temperature threshold value or not, if so, confirming that the temperature of the target capacitor is too high and the risk of damage exists, controlling the charging current of the target capacitor to be reduced to a preset current value, reducing the probability of bulging or explosion of the target capacitor, and giving an alarm in a text, flashing or vibrating mode through an alarm module; or, the controller 40 analyzes the variation trend of the temperature value according to the temperature values of the target capacitor at different times, and if it is determined that the variation trend indicates that the temperature of the target capacitor exceeds a preset temperature threshold value at a future time by comparing with a preset variation trend, the temperature rising trend of the target capacitor is dangerous, and there is a risk of damage, the controller controls the charging current of the target capacitor to be reduced to a preset current value, reduces the probability of bulging or explosion of the target capacitor, and performs an alarm in the above manner through the alarm module.
The controller 40 may be specifically an upper computer, which refers to a computer capable of directly sending out a control command, and is generally a PC/host computer/master computer/upper computer, and the signal changes such as temperature and the like and the display of the temperature analysis result can be displayed on the screen.
In this embodiment, the capacitor temperature detecting device includes a data processing module, a selection switch and a plurality of temperature sensors, each of the temperature sensors is used for measuring temperature data of a capacitor to be measured correspondingly, the data processing module is connected to the selection switch and the controller, and is used for controlling the selection switch to be switched on to measure temperature data of a target capacitor in the capacitor to be measured when receiving an instruction sent by the controller to measure temperature of the target capacitor, filtering the measured temperature data, and transmitting the filtered temperature data to the controller for temperature analysis control, so that when the controller analyzes temperature abnormality, a module for controlling charging of the target capacitor is controlled to reduce charging current or increase charging speed so as to reduce charging time, thereby reducing the bottom swelling or explosion probability of the target capacitor, the capacitor temperature detection device is simple in structure, low in cost and less in calculation data, improves the processing efficiency, timely controls the capacitor to stop aging processing in the capacitor aging process, optimizes the aging process, reduces the temperature of the capacitor by reducing charging current and the like, reduces the probability of capacitor bulging or explosion, and reduces the damage rate of the capacitor.
Referring to fig. 2, fig. 2 is a schematic structural diagram of the capacitance temperature detection device according to another embodiment of the present application, and the capacitance temperature detection device further includes a sensor power supply module 50 and a signal amplification module 60.
The sensor power supply module 50 is connected to the plurality of temperature sensors 30 for supplying power to the plurality of temperature sensors 30.
When the signal strength of the temperature data of the temperature sensor 30 is lower than the preset strength, the temperature data needs to be amplified by the signal amplifying module 60 and then continuously transmitted and processed. The signal amplifying module 60 is connected to the plurality of temperature sensors 30 and the data processing module 10, and is configured to convert the temperature data of the target capacitor measured by each temperature sensor 30 into a signal form for transmission, amplify the temperature data and transmit the amplified temperature data to the data processing module 10, filter the amplified temperature data and transmit the filtered temperature data to the controller 40 by the data processing module 10, and the controller 40 performs the temperature analysis control on the temperature data, that is, analyzes whether the temperature is abnormal, and controls the charging current of the target charger to be reduced when the temperature is abnormal, so as to reduce the probability of the target charger that the risk of bottoming or explosion occurs.
Further, the data processing module 10 includes: the data acquisition module 11, the data processing module 12 and the data transmission module 13;
the data acquisition module 11 is connected with the signal amplification module 60 and the data processing module 12, the data processing module 12 is also connected with the selector switch 20, and the data transmission module 13 is connected with the data processing module 12 and the controller 40;
the data processing module 12 is used for controlling the selection switch 20 to switch on the temperature sensor for measuring the temperature data of the target capacitor;
the data acquisition module 11 is configured to acquire the amplified temperature data output by the signal amplification module 60, or directly acquire the temperature data of the temperature sensor 30 when the signal amplification module 60 is absent, and send the acquired temperature data to the data processing module 12, where the acquired temperature data is processed and then sent to the controller 40 through the data transmission module 13.
Further, the data processing module 10 may include a single chip microcomputer, an a/D conversion chip (ADC), or a Programmable Logic Controller (PLC).
Referring to fig. 3, fig. 3 is a schematic diagram of a circuit structure of the sensor power supply module 50. The sensor power supply module 50 includes: a power supply (a power input terminal is J2 in fig. 3), a first filter capacitor C1, a second filter capacitor C18, a voltage regulator tube U1, a third filter capacitor C2 and a fourth filter capacitor C3;
two ends of the first filter capacitor C1 and the second filter capacitor C18 are respectively connected with two ends of a power supply J2 and two ends of the third filter capacitor C2 and the fourth filter capacitor C3; c1, C18 are input supply filter capacitors, C2, C3 are output filter capacitors.
One end of the voltage regulator tube U1 is connected with one ends of the first filter capacitor C1 and the second filter capacitor C18, the other end of the voltage regulator tube U1 is connected with the other ends of the third filter capacitor C2 and the fourth filter capacitor C3, and the third end of the voltage regulator tube U1 is grounded.
Further, referring to fig. 4A and fig. 4B, fig. 4A is a circuit connection schematic diagram of the non-contact temperature sensor, fig. 4B is a circuit structure schematic diagram of the signal amplifying module 60, and the signal amplifying module 60 specifically includes an operational amplifier U3 and a peripheral circuit. IN fig. 4A, two terminals of the non-contact temperature sensor U4 are an IN + terminal and an IN-terminal, which are the IN + terminal and the IN-terminal IN fig. 4B, the IN + terminal is connected to the positive electrode of the input terminal of the operational amplifier U3, the IN + terminal is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the negative electrode of the input terminal of the operational amplifier U3 and the resistor R4, and the other end of the resistor R4 is connected to the output terminal OUTA of the operational amplifier U3. The resistance values of the resistor R1 and the resistor R4 determine the proportional value of the U3 for amplifying signals, and the temperature data measured by the non-contact temperature sensor U4 are amplified and then output through OUTA. In fig. 4A, the other two terminals of the non-contact temperature sensor U4 are connected to a power supply and a ground, respectively.
It should be noted that, one temperature sensor is connected to one U3; a plurality of U3 are connected to one U2 in a gated manner by analog switches.
Referring to fig. 5, fig. 5 is a schematic circuit structure diagram of the data processing module 10, in fig. 5, the data processing module 10 takes a single chip microcomputer U2 as an example, and includes a data acquisition module, a data processing module, and a data transmission module, where the data transmission module can implement a data transmission function through serial ports TX and RX of the single chip microcomputer U2, and can also transmit through serial ports such as RS485, RS422, or RS232, and the specific type of the data processing module 10 corresponds specifically.
When the non-contact sensor is a thermopile, the thermopile in fig. 4 is connected to the input end of the operational amplifier U3, and the output end OUTA of the operational amplifier U3 is connected to the pin 22 of the single chip microcomputer U2. The temperature data processed by the single chip microcomputer U2 is sent to the upper computer through the 31 pins and the 32 pins, and the upper computer completes the operations of temperature analysis and temperature control, which is described in detail in the above embodiments.
The model number of U1 is preferably LM 7805; u2 model is preferably MEGA 8A; u3 model is preferably OP 07; u4 model is preferably B7F 55.
The above is right the utility model provides a description of condenser temperature-detecting device, to the technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and application scope, to sum up, this description content should not be understood as right the utility model discloses a restriction.
Claims (9)
1. A capacitor temperature detecting apparatus, comprising:
the temperature control system comprises a data processing module, a selection switch and a plurality of temperature sensors;
each temperature sensor is used for correspondingly measuring the temperature data of one or a group of capacitors to be measured;
the selection switch is connected with the data processing module and is controlled by the data processing module to selectively communicate with a passage where one or more temperature sensors are located;
the data processing module is connected with the selector switch and the controller and used for controlling the selector switch to be switched on when an instruction sent by the controller for measuring the temperature of a target capacitor in the capacitor to be measured is received, the corresponding temperature sensor is used for measuring the temperature data of the target capacitor, and the measured temperature data is filtered and then transmitted to the controller for temperature analysis.
2. The capacitor temperature detecting device according to claim 1, further comprising a signal amplifying module;
the signal amplification module is connected with the plurality of temperature sensors and the data processing module and used for amplifying the temperature data measured by the temperature sensors and transmitting the temperature data to the data processing module.
3. The capacitor temperature detecting device according to claim 2, wherein the data processing module comprises: the data acquisition module, the data processing module and the data transmission module;
the data acquisition module is connected with the signal amplification module and the data processing module, the data processing module is connected with the selector switch, and the data transmission module is connected with the data processing module and the controller;
the data processing module is used for controlling the selection switch to be connected with the temperature sensor for measuring the temperature data of the target capacitor;
the data acquisition module is used for acquiring the amplified temperature data output by the signal amplification module, sending the temperature data to the data processing module, processing the temperature data, and sending the processed temperature data to the controller through the data transmission module.
4. The capacitor temperature detecting apparatus according to claim 1, further comprising a sensor power supply module;
the sensor power supply module is connected with the plurality of temperature sensors and used for supplying power to the plurality of temperature sensors.
5. The capacitor temperature detecting device according to any one of claims 2 to 3, wherein the temperature sensor is a non-contact temperature sensor.
6. The capacitor temperature detection apparatus according to claim 5, wherein the non-contact temperature sensor is a thermopile.
7. The capacitor temperature detecting apparatus according to claim 4, wherein the sensor power supply module includes: the power supply comprises a power supply source, a first filter capacitor, a second filter capacitor, a voltage regulator tube, a third filter capacitor and a fourth filter capacitor;
two ends of the first filter capacitor and the second filter capacitor are respectively connected with two ends of the power supply source and two ends of the third filter capacitor and the fourth filter capacitor;
one end of the voltage-stabilizing tube is connected with one ends of the first filter capacitor and the second filter capacitor, and the other end of the voltage-stabilizing tube is connected with the other ends of the third filter capacitor and the fourth filter capacitor.
8. The device for detecting the temperature of the capacitor as claimed in claim 6, wherein the data processing module comprises a single chip microcomputer, an AD chip or a programmable logic controller.
9. The capacitor temperature detecting device according to claim 8, wherein the signal amplifying module includes an operational amplifier;
the thermopile is connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220789427.4U CN217211187U (en) | 2022-04-06 | 2022-04-06 | Capacitor temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220789427.4U CN217211187U (en) | 2022-04-06 | 2022-04-06 | Capacitor temperature detection device |
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| Publication Number | Publication Date |
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| CN217211187U true CN217211187U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220789427.4U Active CN217211187U (en) | 2022-04-06 | 2022-04-06 | Capacitor temperature detection device |
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| CN (1) | CN217211187U (en) |
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- 2022-04-06 CN CN202220789427.4U patent/CN217211187U/en active Active
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