CN212659491U - Poor automatic checkout device of wiring and circuit breaker thereof - Google Patents
Poor automatic checkout device of wiring and circuit breaker thereof Download PDFInfo
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- CN212659491U CN212659491U CN202021463299.1U CN202021463299U CN212659491U CN 212659491 U CN212659491 U CN 212659491U CN 202021463299 U CN202021463299 U CN 202021463299U CN 212659491 U CN212659491 U CN 212659491U
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Abstract
An automatic detection device for poor wiring and a circuit breaker thereof relate to the technical field of circuit breakers. This bad automatic checkout device of wiring includes: the environment temperature sensor, binding post temperature-sensing ware, when using with detect circuit looks coupling's current-sensing ware and treater, the treater links to each other with environment temperature-sensing ware, binding post temperature-sensing ware and current-sensing ware for monitor binding post temperature, ambient temperature, the electric current of being detected the circuit, and whether bad testing result of output wiring. The circuit breaker comprises a wiring terminal, a circuit breaking execution unit and an automatic poor wiring detection device, wherein a processor is connected with the circuit breaking execution unit and used for controlling the circuit breaking execution unit to execute a circuit breaking action when poor wiring is detected. By adopting the technical scheme, the automatic circuit breaker has the functions of automatically detecting, automatically cutting off the circuit when poor wiring exists and feeding back to the background, thereby effectively protecting the circuit breaker and prolonging the service life of the circuit breaker.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to bad automatic checkout device of wiring and circuit breaker thereof.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The contact failure of the connection terminals in the circuit breaker and the damage of the line are often caused, which affects the use, and the temperature is increased when the connection is failed, which may affect the service life of the circuit breaker. Therefore, improvements are desired.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a bad automatic checkout device of wiring and circuit breaker thereof, have automatic checkout binding post contact failure and circuit damage, and when there is the function of automatic cutout circuit and in time to the backstage feedback when the wiring is bad, protect the life of circuit breaker and extension circuit breaker effectively.
In order to achieve the above object, the utility model adopts the following technical scheme: an automatic detection device for poor wiring comprises: when using, the environment temperature sensor, the binding post temperature sensor and the current sensor and the treater of being detected circuit looks coupling, the treater with environment temperature sensor, binding post temperature sensor and current sensor link to each other for monitor binding post temperature, ambient temperature, the electric current that is detected the circuit and whether bad testing result of output wiring.
The current inductor comprises a current transformer and a current waveform generator which is connected with the current transformer and used for converting current into current waveforms, and the processor analyzes the current waveforms and judges whether poor wiring exists.
The wiring terminal temperature sensor comprises a thermistor and a divider resistor, and the common end of the thermistor and the divider resistor is connected with the ADC input end of the processor.
A circuit breaker comprises a wiring terminal, a circuit breaking execution unit and an automatic poor wiring detection device, wherein a wiring terminal temperature sensor is in physical contact with the wiring terminal, and a processor is connected with the circuit breaking execution unit and used for controlling the circuit breaking execution unit to execute a circuit breaking action when poor wiring is detected.
The circuit breaker further comprises a communication unit, and the processor is further connected with the communication unit and used for sending an alarm signal to a background when poor wiring is detected.
The circuit breaker further comprises an electric quantity metering unit, and the automatic detection device for poor wiring shares a current inductor of the electric quantity metering unit.
The processor adopts a Bluetooth chip.
After the technical scheme is adopted, the utility model discloses beneficial effect does: analyzing the current waveform of the detected circuit through a processor, and judging and outputting a result of poor wiring when the current waveform is abnormal within a set time; the processor detects the voltage of the ADC interface in real time to obtain the resistance value of the thermistor, and obtains the temperature value of the wiring terminal according to the temperature corresponding to the resistance value of the thermistor, and then compares the environmental temperature detected by the environmental temperature sensor with the temperature value of the wiring terminal to judge whether the wiring terminal has poor contact or not.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: 1. a processor; 2. an ambient temperature sensor; 3. a terminal inductor; 4. a current sensor; 5. a wiring terminal; 6. a circuit breaking execution unit; 7. a communication unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.
The embodiment relates to a circuit breaker, including: the automatic wiring device comprises a wiring terminal 5, a circuit breaking execution unit 6, an automatic wiring failure detection device and a communication unit 7.
Wherein, poor automatic checkout device of wiring includes: an environment temperature sensor 2, a wiring terminal temperature sensor, a current sensor 4 and a processor 1.
The processor 1 is an MCU. The MCU is connected with the environment temperature sensor 2, the wiring terminal temperature sensor and the current sensor 4. The current sensor 4 is coupled to a circuit to be tested when in use, and the current sensor 4 includes a current transformer and a current waveform generator. The current transformer is connected in series in the circuit to be detected, the current waveform generator is connected with the current transformer and used for converting current into current waveforms, and the MCU is used for analyzing the current waveforms and judging whether poor wiring exists. When the current waveform is a continuous smooth shape, the MCU outputs a result that the wiring is normal; when the current waveform is in a discontinuous steep shape and continues for a certain time (3-5 seconds), the MCU outputs the result of poor wiring. Preferably, the current waveform generator is an electric quantity metering chip which is respectively connected with the SPI interfaces of the current transformer and the MCU. The current waveform generator may also be an MCU.
The terminal temperature sensor is in physical contact with the terminal 5. The temperature sensor of the wiring terminal comprises a thermistor and a divider resistor, and the common end of the thermistor and the divider resistor is connected with the ADC input end of the MCU. The MCU detects the voltage of the input end of the ADC, and obtains the temperature of the wiring terminal 5 according to the characteristic that each resistance value of the thermistor corresponds to one temperature value.
The ambient temperature sensor 2 is assembled on the circuit board and used for detecting the temperature of the surrounding environment, the real-time measured temperature value is sent to the MCU, the MCU compares the temperature of the wiring terminal 5 and the environment, and then the detection result of whether the wiring is bad is output. When the temperature of the wiring terminal 5 is higher than the temperature of the environment and the difference value between the temperature and the temperature is higher than a set value, the MCU judges that the wiring is poor and outputs a result, otherwise, the MCU outputs a normal wiring result.
The MCU is connected with the circuit breaking execution unit 6 and used for controlling the circuit breaking execution unit 6 to execute circuit breaking action when poor wiring is detected. The MCU is also connected to the communication unit 7 and is arranged to send an alarm signal to the background when a poor connection is detected. Preferably, the MCU employs a Bluetooth chip.
The working principle of the utility model is as follows: when the environment temperature sensor is used, the environment temperature sensor 2 detects the temperature of the environment in real time and sends the detected environment temperature to the MCU; meanwhile, the MCU detects the voltage on the ADC interface, the temperature of the wiring terminal 5 is obtained according to the characteristics of the thermistor, then the temperature of the wiring terminal 5 is compared with the ambient temperature, and when the temperature of the wiring terminal 5 is higher than the temperature of the circuit board and the temperature difference between the temperature of the wiring terminal 5 and the temperature difference between the temperature of the circuit board and the temperature difference is larger than a set value, the MCU outputs a detection result of poor wiring.
Meanwhile, the electric quantity metering chip converts the current in the detected circuit into a current waveform. And the MCU judges whether poor wiring exists according to the current change condition. When the current of the detected circuit is in a discontinuous steep shape within a set time, judging that the connection is poor; when the wiring is poor, the MCU controls the circuit breaking execution unit 6 to cut off the circuit, and controls the communication unit 7 to send an alarm signal to the background.
The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. An automatic detection device for poor wiring is characterized by comprising: when environment temperature inductor (2), binding post temperature-sensing ware, application with detected circuit phase coupling current-sensing ware (4) and treater (1), treater (1) with environment temperature-sensing ware (2), binding post temperature-sensing ware and current-sensing ware (4) link to each other for monitor binding post temperature, ambient temperature, the electric current that is detected the circuit and whether bad testing result of output wiring.
2. The automatic detection device for poor wiring according to claim 1, wherein the current inductor (4) comprises a current transformer and a current waveform generator connected with the current transformer and used for converting current into a current waveform, and the processor (1) analyzes the current waveform and judges whether poor wiring exists.
3. The automatic poor-wiring detection device according to claim 1, wherein the wiring terminal temperature sensor comprises a thermistor and a divider resistor, and a common end of the thermistor and the divider resistor is connected with an ADC input end of the processor (1).
4. A circuit breaker comprising a connection terminal (5) and a circuit breaking actuator (6), characterized in that it further comprises an automatic detection device of poor connection according to any one of claims 1-3, said connection terminal temperature sensor being in physical contact with said connection terminal (5), said processor (1) being connected to said circuit breaking actuator (6) for controlling said circuit breaking actuator (6) to perform a circuit breaking action when poor connection is detected.
5. The circuit breaker according to claim 4, characterized in that it further comprises a communication unit (7), said processor (1) being further connected to said communication unit (7) for sending an alarm signal to a back-end when a bad wiring is detected.
6. The circuit breaker according to claim 4, characterized in that the processor (1) employs a Bluetooth chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021463299.1U CN212659491U (en) | 2020-07-21 | 2020-07-21 | Poor automatic checkout device of wiring and circuit breaker thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021463299.1U CN212659491U (en) | 2020-07-21 | 2020-07-21 | Poor automatic checkout device of wiring and circuit breaker thereof |
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| Publication Number | Publication Date |
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| CN212659491U true CN212659491U (en) | 2021-03-05 |
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| CN202021463299.1U Active CN212659491U (en) | 2020-07-21 | 2020-07-21 | Poor automatic checkout device of wiring and circuit breaker thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687233A (en) * | 2021-08-27 | 2021-11-23 | 陈永强 | Method for monitoring and alarming separation of storage battery pack from direct current bus and poor contact |
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2020
- 2020-07-21 CN CN202021463299.1U patent/CN212659491U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687233A (en) * | 2021-08-27 | 2021-11-23 | 陈永强 | Method for monitoring and alarming separation of storage battery pack from direct current bus and poor contact |
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