CN213521262U - Over-voltage and under-voltage mechanism capable of setting threshold value - Google Patents
Over-voltage and under-voltage mechanism capable of setting threshold value Download PDFInfo
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- CN213521262U CN213521262U CN202021963677.2U CN202021963677U CN213521262U CN 213521262 U CN213521262 U CN 213521262U CN 202021963677 U CN202021963677 U CN 202021963677U CN 213521262 U CN213521262 U CN 213521262U
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Abstract
The utility model relates to a circuit control technical field especially relates to an under-voltage mechanism of crossing that can set up threshold value, include: the protection shell is internally provided with a control circuit board; the control circuit board is provided with a sampling module, a programmable storage module, an analog/digital conversion module, an RS485 communication module, an execution module and a drive module, the signal output ends of the sampling module, the programmable storage module, the analog/digital conversion module, the RS485 communication module, the execution module and the drive module are respectively electrically connected with the signal input end of the programmable storage module, the side wall of the protective shell is also provided with an RS485 communication interface electrically connected with the RS485 communication module, the programmable storage module comprises an over-under-voltage threshold setting unit electrically connected with the RS485 communication module, and the original over-under-voltage threshold is changed by modifying over-under-voltage threshold parameters stored in the storage unit, so that the power utilization protection range of the protector can be flexibly adjusted.
Description
Technical Field
The utility model relates to a circuit control technical field especially relates to an under-voltage mechanism of crossing that can set up the threshold value.
Background
In order to prevent the occurrence of a great number of protective measures in case of using electricity, a protection method is commonly used and is a protector, and an over-voltage and under-voltage protector is one of the protection methods. When the voltage of the mains supply exceeds the set overvoltage action voltage value of the protector or is lower than the undervoltage action voltage value of the protector, the protector can quickly and reliably cut off the circuit, and further plays a role in protection.
However, the power supply quality and the voltage requirement of the load in different areas are different, and the cut-off value of the overvoltage and undervoltage protection in the traditional protector is a fixed value and cannot be adjusted according to local conditions; the adjustable power consumption protection device can adjust the threshold values of overvoltage and undervoltage according to the voltage conditions of power supply in different areas, and therefore the power consumption protection range can be adjusted flexibly.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made in order to provide an overvoltage and undervoltage mechanism that can set a threshold value that overcomes or at least partially solves the above-mentioned problems.
In order to solve the problem, the utility model discloses a can set up under-voltage mechanism of crossing of threshold value, include:
the protection shell is internally provided with a control circuit board;
the control circuit board is provided with a sampling module, a programmable storage module, an analog/digital conversion module, an RS485 communication module, an execution module and a drive module, the signal output ends of the sampling module, the analog/digital conversion module, the RS485 communication module, the execution module and the drive module are respectively electrically connected with the signal input end of the programmable storage module, the side wall of the protective shell is also provided with an RS485 communication interface electrically connected with the RS485 communication module, and the programmable storage module comprises an under-voltage threshold setting unit electrically connected with the RS485 communication module.
Furthermore, the driving module comprises a current reversing circuit and a direct current motor, and the current reversing circuit is connected with the input end of the direct current motor.
Further, a photoelectric coupling unit is electrically connected between the RS485 communication module and the programmable storage module.
Furthermore, the analog/digital conversion module also comprises a rectification filtering unit.
Furthermore, the programmable memory module further comprises a memory unit, and the memory unit is electrically connected with the under-voltage threshold setting unit.
Furthermore, a status indicator lamp is arranged on the protective shell, and the execution module is electrically connected with the status indicator lamp.
Furthermore, a rectification module is further arranged on the control circuit board, and the rectification module is respectively connected with the power input ends of the sampling module, the programmable storage module, the analog/digital conversion module, the RS485 communication module, the execution module and the driving module.
The utility model discloses a following advantage:
the sampling module collects voltage, an analog value of the converted voltage is converted into a numerical value through the analog/digital conversion module, the numerical value is judged through the programmable storage module, and if a preset over-voltage and under-voltage threshold value is touched, a tripping instruction is sent to the execution module so as to be transmitted to the driving module to drive the direct current motor to drive the circuit breaker to perform tripping operation; before that, an RS485 module is connected with external terminal equipment, and the original over-voltage and under-voltage threshold value is changed by modifying the over-voltage and under-voltage threshold value parameters in the storage and storage unit, so that the power utilization protection range of the protector is improved.
Drawings
Fig. 1 is a block diagram of an over-voltage and under-voltage mechanism capable of setting a threshold according to the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model discloses an one of the core design lies in, connect external terminal equipment through RS485 communication module 13, through changing the undervoltage threshold value parameter of crossing in the storage module 18 able to programme who is equipped with on control circuit board in advance, change the threshold value of crossing undervoltage in the past, sampling module 10 gathers voltage, through analog/digital conversion module 12 convert the analog value of the voltage that changes into numerical value, judge this numerical value through storage module 18 able to programme, if touch predetermined undervoltage threshold value, then send the tripping operation instruction to execution module 14, thereby transmit to 15 drive direct current motor drive circuit breakers of drive module and carry out tripping operation.
Referring to fig. 1, a structural block diagram of an under-voltage mechanism capable of setting a threshold of the present invention is shown, which may specifically include:
an over-under voltage mechanism capable of setting a threshold value, comprising:
the protective shell 16 is provided with a control circuit board inside;
the control circuit board is provided with a sampling module 10 for voltage sampling, a programmable storage module 18 for being used as a center, an analog/digital conversion module 12 for converting alternating current, an RS485 communication module 13, an execution module 14 and a driving module 15 for being connected with external terminal equipment, signal output ends of the sampling module 10, the analog/digital conversion module 12, the RS485 communication module 13, the execution module 14 and the driving module 15 are respectively and electrically connected with a signal input end of the programmable storage module 18, an RS485 communication interface 17 electrically connected with the RS485 communication module 13 is further arranged on the side wall of the protective shell 16, the programmable storage module 18 comprises an over-under-voltage threshold setting unit electrically connected with the RS485 communication module 13, and the setting unit sets an under-voltage over-threshold according to preset set parameters.
In the above embodiment, the physical structure of all the modules is one of a chip, a triode, a diode, a capacitor, an inductor and a resistor;
generally, the overpressure action cutoff value: AC270 ± 5V, overvoltage protection value/overvoltage recovery value: AC250 ± 5V, undervoltage action cutoff value: AC160 ± 5V, undervoltage protection value/undervoltage recovery value: AC190 + -5V.
In an embodiment, the driving module 15 includes a current commutation circuit and a dc motor, and the current commutation circuit is connected to an input terminal of the dc motor.
In an embodiment, a photocoupling unit is electrically connected between the RS485 communication module 13 and the programmable storage module 18.
In an embodiment, the analog/digital conversion module 12 further includes a rectifying and filtering unit.
In an embodiment, the programmable memory module 18 further includes a storage unit for storing a parameter for setting the over-voltage and under-voltage threshold, and the storage unit is electrically connected to the under-voltage threshold setting unit.
In an embodiment, the protective shell 16 is provided with a status indicator lamp 19, the execution module 14 is electrically connected to the status indicator lamp 19, and generally, the programmable storage module 18 sends a signal for turning on the status indicator lamps 19 to the execution module 14 according to the voltage value determined by the programmable storage module and the triggering condition of the set threshold.
In an embodiment, the control circuit board is further provided with a rectifying module, and the rectifying module is respectively connected with power input ends of the sampling module 10, the programmable storage module 18, the analog/digital conversion module 12, the RS485 communication module 13, the execution module 14, and the driving module 15.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above detailed description is made on the under-voltage mechanism capable of setting the threshold value provided by the present invention, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. An over-under voltage mechanism capable of setting a threshold value, comprising:
the protection shell is internally provided with a control circuit board;
the control circuit board is provided with a sampling module, a programmable storage module, an RS485 communication module, an analog/digital conversion module, an execution module and a drive module, the signal output ends of the sampling module, the analog/digital conversion module, the RS485 communication module, the execution module and the drive module are respectively electrically connected with the signal input end of the programmable storage module, the side wall of the protective shell is also provided with an RS485 communication interface electrically connected with the RS485 communication module, and the programmable storage module comprises an under-voltage threshold setting unit electrically connected with the RS485 communication module.
2. The mechanism of claim 1, wherein the drive module comprises a current commutation circuit and a dc motor, and the current commutation circuit is connected to an input terminal of the dc motor.
3. The mechanism of claim 1, wherein an opto-electronic coupling unit is further electrically connected between the RS485 communication module and the programmable storage module.
4. The mechanism of claim 1, wherein the analog/digital conversion module further comprises a rectifying and filtering unit.
5. The mechanism of claim 1, further comprising a memory unit in the programmable memory module, wherein the memory unit is electrically connected to the under-voltage threshold setting unit.
6. The mechanism of claim 1, wherein a status indicator light is disposed on the protective case, and the execution module is electrically connected to the status indicator light.
7. The mechanism of claim 1, wherein a rectifying module is further disposed on the control circuit board, and the rectifying module is respectively connected to power input terminals of the sampling module, the programmable storage module, the analog/digital conversion module, the RS485 communication module, the execution module, and the driving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963677.2U CN213521262U (en) | 2020-09-09 | 2020-09-09 | Over-voltage and under-voltage mechanism capable of setting threshold value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963677.2U CN213521262U (en) | 2020-09-09 | 2020-09-09 | Over-voltage and under-voltage mechanism capable of setting threshold value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213521262U true CN213521262U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021963677.2U Active CN213521262U (en) | 2020-09-09 | 2020-09-09 | Over-voltage and under-voltage mechanism capable of setting threshold value |
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| Country | Link |
|---|---|
| CN (1) | CN213521262U (en) |
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- 2020-09-09 CN CN202021963677.2U patent/CN213521262U/en active Active
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