CN208433353U - A kind of novel plastic shell circuit breaker - Google Patents
A kind of novel plastic shell circuit breaker Download PDFInfo
- Publication number
- CN208433353U CN208433353U CN201821364955.5U CN201821364955U CN208433353U CN 208433353 U CN208433353 U CN 208433353U CN 201821364955 U CN201821364955 U CN 201821364955U CN 208433353 U CN208433353 U CN 208433353U
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 14
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Protection Of Generators And Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of novel plastic shell circuit breakers, including shell, combined floodgate executing agency, dividing tripping, detection circuit are provided in shell, detection circuit includes main control chip, electrical parameter shaping circuit, temperature measurement circuit, motor control mechanism, communication interface, memory；Alternating current sampling circuit and liquid crystal display drive circuit are provided in main control chip；Liquid crystal display drive circuit is connected with liquid crystal display, and alternating current sampling circuit is connected by exchange A/D converter with electrical parameter shaping circuit；Temperature measurement circuit is connect by direct current A/D converter with main control chip, and communication interface is connected with each other by universal asynchronous receiving-transmitting transmitter and main control chip, and memory passes through I2C bus and main control chip are connected with each other；The output end of main control chip is connect by bus extender with motor control mechanism, and motor control mechanism is connect with combined floodgate executing agency and dividing tripping.This product has defencive functions, the safeties such as earth leakage protective, overvoltage protection, o-volt protection, open-phase protection very high.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing more particularly to a kind of novel plastic shell circuit breakers.
Background technique
Breaker is as a kind of switching device that can cut-off electric current under abnormal loop condition, and application is extremely wide, especially
Two sections of defencive functions that breaker of plastic casing has overload long delay, short-circuit wink dynamic, moreover it is possible to it is used with multiple module unit matching, it is standby
By the favor of people.However, breaker of plastic casing existing on the market only has simple overload protection function at present, normal point
Combined floodgate needs manual hand manipulation, without the common defencive function such as earth leakage protective, overvoltage protection, o-volt protection, open-phase protection,
It can not realize long-range control, utility function is poor.For the safety for increasing breaker of plastic casing, it will usually select additional detection machine
Structure, but all defencive functions can not be realized by additional testing agency, and additional testing agency's cost is relatively high, scene
Not necessarily there are enough spaces to install new equipment additional.
Utility model content
In order to solve shortcoming present in above-mentioned technology, the utility model provides a kind of novel plastic shell circuit breaker.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of novel plastic shell circuit breaker, packet
Shell is included, combined floodgate executing agency and dividing tripping are provided in shell, combined floodgate executing agency includes combined floodgate motor, and separating brake is de-
Buckle mechanism includes buckle releaser, is additionally provided with detection circuit in shell；Detection circuit include main control chip, electrical parameter shaping circuit,
Temperature measurement circuit, motor control mechanism, communication interface, memory；
Main control chip uses single-chip microcontroller, is provided with alternating current sampling circuit and liquid crystal display drive circuit, master control core in main control chip
On piece is provided with exchange A/D converter interface, direct current A/D converter interface, universal asynchronous receiving-transmitting transmitter interface, I2C bus
Interface, bus extender interface；Exchange A/D converter, direct current A/D converter interface are connected in exchange A/D converter interface
It is inside connected with direct current A/D converter, universal asynchronous receiving-transmitting transmitter, I are connected in universal asynchronous receiving-transmitting transmitter interface2C is total
I is connected in line interface2C bus is connected with bus extender in bus extender interface；
Liquid crystal display drive circuit is connected with liquid crystal display, and the outer surface of shell is arranged in liquid crystal display；AC sampling
Circuit is connected with A/D converter is exchanged, and exchange A/D converter is connected with electrical parameter shaping circuit；Temperature measurement circuit passes through straight
Stream A/D converter is connect with main control chip, and communication interface is connected with each other by universal asynchronous receiving-transmitting transmitter and main control chip, is deposited
Reservoir passes through I2C bus and main control chip are connected with each other；
The output end of main control chip is connect by bus extender with motor control mechanism；Motor control mechanism respectively with conjunction
Lock motor, buckle releaser are connected.
Further, electrical parameter shaping circuit is made of discrete device, and discrete device includes resistance, current transformer.
Further, thermistor is provided in temperature measurement circuit.
The utility model provides a kind of novel plastic shell circuit breaker, and realization is monitored the operating status of breaker, has
There are the defencive functions such as earth leakage protective, overvoltage protection, o-volt protection, open-phase protection, while being able to achieve long-range control and carrying out divide-shut brake
Function, temperature sensing circuit play superheat protecting function to contact temperature monitoring, improve breaker of plastic casing safety and
Practicability.
Detailed description of the invention
Fig. 1 is the system block diagram of the utility model breaker of plastic casing.
Fig. 2 is the schematic illustration of electrical parameter shaping circuit in Fig. 1.
Fig. 3 is the schematic illustration of motor control mechanism in Fig. 1.
Fig. 4 is the schematic illustration that temperature measurement circuit measures contact temperature in Fig. 1.
Fig. 5 is the schematic illustration of communication interface in Fig. 1.
Fig. 6 is the schematic illustration of memory in Fig. 1.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
A kind of novel plastic shell circuit breaker as shown in Figure 1, including shell are provided with combined floodgate executing agency and separating brake in shell
Tripping mechanism, combined floodgate executing agency include combined floodgate motor, and dividing tripping includes buckle releaser, and detection electricity is additionally provided in shell
Road；Detection circuit includes main control chip, electrical parameter shaping circuit, temperature measurement circuit, motor control mechanism, communication interface, memory；
Main control chip uses single-chip microcontroller, is provided with alternating current sampling circuit and liquid crystal display drive circuit, master control core in main control chip
On piece is provided with exchange A/D converter interface, direct current A/D converter interface, universal asynchronous receiving-transmitting transmitter interface, I2C bus
Interface, bus extender interface；Exchange A/D converter, direct current A/D converter interface are connected in exchange A/D converter interface
It is inside connected with direct current A/D converter, universal asynchronous receiving-transmitting transmitter, I are connected in universal asynchronous receiving-transmitting transmitter interface2C is total
I is connected in line interface2C bus is connected with bus extender in bus extender interface；
Liquid crystal display drive circuit is connected with liquid crystal display, and the outer surface of shell is arranged in liquid crystal display；AC sampling
Circuit is connected with A/D converter is exchanged, and exchange A/D converter is connected with electrical parameter shaping circuit；Temperature measurement circuit passes through straight
Stream A/D converter is connect with main control chip, and communication interface is connected with each other by universal asynchronous receiving-transmitting transmitter and main control chip, is deposited
Reservoir passes through I2C bus and main control chip are connected with each other；
The output end of main control chip is connect by bus extender with motor control mechanism；Motor control mechanism respectively with conjunction
Lock motor, buckle releaser are connected.
Main control chip uses V9003 single-chip microcontroller, and V9003 is that the three phase metering SoC chip of a Low Power High Performance is (a kind of
The chip of integrated circuit), there are numerous functional modules, such as liquid crystal display drive circuit (LCD driving), alternating current sampling circuit, degree of integration
Height, it is powerful, the switch load, voltage and line temperature situation of current breaker can be handled in real time, temperature, voltage and
Load is more than that the instant output switching signal of threshold value of setting is powered off, and protection equipment is not damaged.Wherein, alternating current sampling circuit
The electrical parameter analog signal that breaker is run can be converted into digital signal to be analyzed and processed, liquid crystal display drive circuit can incite somebody to action
Some data in main control chip show that liquid crystal display uses liquid crystal of the segmentation with backlight by liquid crystal display output
Display.
Electrical parameter shaping circuit, is made of discrete device, as shown in Fig. 2, using the original of electric resistance partial pressure and current transformer
Reason realizes and carries out shaping to voltage and current signal, output meets the analog signal of main control chip requirement.
Motor control mechanism, realization detect the state of breaker closing executing agency and dividing tripping, main
Control chip, which exports, to be opened or closed signal and is divided to the buckle releaser of combined floodgate motor, dividing tripping in combined floodgate executing agency
Lock or combined floodgate, principle are as shown in Figure 3.
Temperature measurement circuit is monitored by the contact that thermistor is easy to produce high temperature to breaker, prevents apparatus overheat
Safety accident is caused, the corresponding voltage value of temperature measurement circuit output temperature is given to main control chip, and main control chip is converted using direct current A/D
Device carries out data variation, corresponding temperature value is calculated, as shown in figure 4, measuring to different electric shock temperature.
Communication interface uses RS485 communication interface, provides telecommunication channel for breaker, can provide number for other equipment
According to output, meanwhile, other equipment can input information, realize remote control to breaker, as shown in Figure 5.Memory is for storing
The parameter information of breaker passes through I using band electrically erasable programmable read-write memory (EEPROM)2C bus is by the letter of storage
Breath is transmitted between memory and main control chip, as shown in Figure 6.
Novel plastic shell circuit breaker provided by the utility model has the advantage that are as follows: by the shell of breaker of plastic casing
Increase detection circuit, realize the monitoring to the High Voltage Circuit Breaker Condition, there is earth leakage protective, overvoltage protection, o-volt protection, phase shortage
Common defencive functions such as protection, while can remotely control and carry out divide-shut brake function, temperature sensing circuit to contact temperature monitoring,
Superheat protecting function is played, safety and the practicability of breaker of plastic casing are improved.
Detailed process are as follows: when the situations such as electric leakage, over-voltage, decompression, phase shortage occurs in breaker of plastic casing, corresponding electricity can be issued
Current voltage signal, electrical parameter shaping circuit carry out shaping to the voltage and current signal in breaker, by exchanging A/D converter,
Output meets the electrical parameter analog signal of main control chip requirement, and electrical parameter analog signal is input in sample circuit, by sampling electricity
Electrical parameter analog signal is converted into digital signal by road；Meanwhile the contact that temperature measurement circuit is easy to produce high temperature to breaker carries out
It monitors, on the corresponding voltage value to main control chip of output temperature, direct current A/D converter carries out data variation, calculates corresponding
Temperature value；Main control chip judges (threshold value is stored in memory when whether above-mentioned digital signal and temperature value are more than the threshold value of setting
It is interior), so that output opens or closes signal in time, signal is opened or closed by bus extender and is delivered to Motor controlling machine
Structure, to carry out combined floodgate or sub-switching operation to the buckle releaser of combined floodgate motor, dividing tripping in combined floodgate executing agency respectively；
In addition, the external other equipment of communication interface, the relevant information on main control chip can be sent to by universal asynchronous receiving-transmitting transmitter
Communication interface is to being sent to external equipment, in order to comprehensively be detected to plastic housing open circuit and remote control, while master control
Relevant information on chip can be shown on a liquid crystal display by liquid crystal display drive circuit.
Above embodiment is not limitations of the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made within the scope of the technical solution of the utility model,
Also the protection scope of the utility model is belonged to.
Claims (3)
1. a kind of novel plastic shell circuit breaker, including shell, it is provided with combined floodgate executing agency and dividing tripping in shell, is closed a floodgate
Executing agency includes combined floodgate motor, and dividing tripping includes buckle releaser, it is characterised in that: detection is additionally provided in the shell
Circuit；The detection circuit include main control chip, electrical parameter shaping circuit, temperature measurement circuit, motor control mechanism, communication interface,
Memory；
The main control chip uses single-chip microcontroller, is provided with alternating current sampling circuit and liquid crystal display drive circuit, master control core in main control chip
On piece is provided with exchange A/D converter interface, direct current A/D converter interface, universal asynchronous receiving-transmitting transmitter interface, I2C bus
Interface, bus extender interface；Exchange A/D converter, direct current A/D converter are connected in the exchange A/D converter interface
It is connected with direct current A/D converter in interface, is connected with universal asynchronous receiving-transmitting transmitter in universal asynchronous receiving-transmitting transmitter interface,
I2I is connected in C bus interface2C bus is connected with bus extender in bus extender interface；
The liquid crystal display drive circuit is connected with liquid crystal display, and the outer surface of shell is arranged in liquid crystal display；The exchange
Sample circuit is connected with A/D converter is exchanged, and exchange A/D converter is connected with electrical parameter shaping circuit；The thermometric electricity
Road is connect by direct current A/D converter with main control chip, and communication interface passes through universal asynchronous receiving-transmitting transmitter and main control chip phase
It connects, memory passes through I2C bus and main control chip are connected with each other；
The output end of the main control chip is connect by bus extender with motor control mechanism；The motor control mechanism difference
It is connected with combined floodgate motor, buckle releaser.
2. novel plastic shell circuit breaker according to claim 1, it is characterised in that: the electrical parameter shaping circuit is by deviding device
Part is constituted, and discrete device includes resistance, current transformer.
3. novel plastic shell circuit breaker according to claim 1, it is characterised in that: be provided with temperature-sensitive electricity in the temperature measurement circuit
Resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364955.5U CN208433353U (en) | 2018-08-23 | 2018-08-23 | A kind of novel plastic shell circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364955.5U CN208433353U (en) | 2018-08-23 | 2018-08-23 | A kind of novel plastic shell circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433353U true CN208433353U (en) | 2019-01-25 |
Family
ID=65098103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821364955.5U Expired - Fee Related CN208433353U (en) | 2018-08-23 | 2018-08-23 | A kind of novel plastic shell circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029226A (en) * | 2019-12-07 | 2020-04-17 | 浙江大学 | Prevent expense accuse circuit breaker control system and expense accuse circuit breaker of destruction |
| CN112952768A (en) * | 2020-12-09 | 2021-06-11 | 真兰电气(上海)有限公司 | Circuit breaker PTC thermal protection circuit |
-
2018
- 2018-08-23 CN CN201821364955.5U patent/CN208433353U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029226A (en) * | 2019-12-07 | 2020-04-17 | 浙江大学 | Prevent expense accuse circuit breaker control system and expense accuse circuit breaker of destruction |
| CN111029226B (en) * | 2019-12-07 | 2020-11-06 | 浙江大学 | Prevent expense accuse circuit breaker control system and expense accuse circuit breaker of destruction |
| CN112952768A (en) * | 2020-12-09 | 2021-06-11 | 真兰电气(上海)有限公司 | Circuit breaker PTC thermal protection circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |