CN216015236U - Plastic case circuit breaker without digital display - Google Patents
Plastic case circuit breaker without digital display Download PDFInfo
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- CN216015236U CN216015236U CN202121345253.4U CN202121345253U CN216015236U CN 216015236 U CN216015236 U CN 216015236U CN 202121345253 U CN202121345253 U CN 202121345253U CN 216015236 U CN216015236 U CN 216015236U
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Abstract
A plastic case circuit breaker without digital display comprises a circuit board assembly, a switching-on and switching-off assembly, a magnetic flux mechanism and an LED indicator lamp, and is characterized in that the circuit board assembly comprises a master control circuit, a wireless communication circuit, an electrical parameter measuring circuit and a power supply circuit; the electrical parameter measuring circuit comprises a current sampling coil; the switching-on and switching-off component comprises an incoming line terminal, a moving contact, a fixed contact, an outgoing line terminal, a linkage mechanism and a connecting line; the current sampling coil is connected with the wire outlet terminal, and the magnetic flux mechanism is connected with the linkage mechanism; the data input end of the main control circuit is connected with the data output end of the electrical parameter measuring circuit, and the data output end of the main control circuit is connected with the data input end of the wireless communication circuit; the data output end of the wireless communication circuit is connected with a terminal; and the data output end of the main control circuit is connected with the LED indicator lamp.
Description
Technical Field
The utility model relates to a molded case circuit breaker without digital display, and belongs to the technical field of circuit breakers.
Background
The circuit breaker is relatively widely used, has an overload protection function, is mostly provided with a digital display device at present, and can be operated by the digital display device. However, when the circuit breaker is operated by the digital display device, the circuit breaker is easily in an unreasonable working state due to manual operation. Meanwhile, the current method for setting the circuit parameters of the circuit breaker generally adopts a manual operation mode, the circuit breaker is set, and the circuit breaker is easily in an unreasonable working state due to manual operation. Therefore, there is a need for a plastic case circuit breaker without digital display, which displays the working state of the circuit breaker through an LED lamp and a terminal device and does not require the circuit breaker to be operated in the circuit breaker itself.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a plastic case circuit breaker without digital display, which displays the operating state of the circuit breaker through an LED lamp and a terminal device and does not require the circuit breaker to be operated in the circuit breaker itself.
The utility model provides a digital display-free molded case circuit breaker, which comprises a circuit board assembly, a switching-on and switching-off assembly, a magnetic flux mechanism and an LED indicator lamp, wherein the circuit board assembly comprises a main control circuit, a wireless communication circuit, an electrical parameter measuring circuit and a power supply circuit;
the electrical parameter measuring circuit comprises a current sampling coil; the switching-on and switching-off component comprises an incoming line terminal, a moving contact, a fixed contact, an outgoing line terminal, a linkage mechanism and a connecting line;
the current sampling coil is connected with the wire outlet terminal, and the magnetic flux mechanism is connected with the linkage mechanism; the data input end of the main control circuit is connected with the data output end of the electrical parameter measuring circuit, and the data output end of the main control circuit is connected with the data input end of the wireless communication circuit; the data output end of the wireless communication circuit is connected with a terminal; and the data output end of the main control circuit is connected with the LED indicator lamp.
Preferably, the molded case circuit breaker without the digital display further comprises a physical opening and closing indication board.
Preferably, the electrical parameter measuring circuit includes a temperature obtaining module, an electrical parameter obtaining module, a first conditioning circuit, a second conditioning circuit, an analog-to-digital converter, and a quantization module.
Preferably, a data output end of the temperature obtaining module is connected to a data input end of the first conditioning circuit, and a data output end of the electrical parameter obtaining module is connected to a data input end of the second conditioning circuit.
Preferably, the data output ends of the first conditioning circuit and the second conditioning circuit are connected to the data input end of the analog-to-digital converter, the data output end of the analog-to-digital converter is connected to the data input end of the quantization module, and the data output end of the quantization module is connected to the data input end of the main control circuit.
Preferably, the electrical parameter acquisition module comprises a current sampling coil for acquiring current parameters and a plurality of electrical parameter sensors for acquiring electrical parameters of the circuit; the temperature acquisition module comprises a temperature sensor for acquiring the ambient temperature of the circuit.
Preferably, the wireless communication circuit is wirelessly connected with an upper gateway or a server.
Preferably, the plastic case circuit breaker without digital display further comprises an electrical parameter threshold value storage module for storing an electrical parameter threshold value set by a user through the upper gateway or the server.
Preferably, the main control circuit is realized by adopting a single chip microcomputer.
Preferably, the shell of the molded case circuit breaker capable of opening and closing the brake at regular time is a molded case.
The utility model does not set a digital display device, displays the working state of the circuit breaker through the LED lamp and the terminal device, and is connected with the terminal device through the wireless communication circuit, thereby realizing the operation of the circuit breaker through the terminal device. The breaker does not need to be operated by the breaker, so that the breaker is prevented from being in an unreasonable working state due to manual operation, and the accuracy and the reliability of breaker control are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a molded case circuit breaker without a digital display in one embodiment;
fig. 2 is a schematic structural diagram of a molded case circuit breaker without a digital display according to an embodiment;
fig. 3 is a schematic block diagram of an electrical parameter measuring circuit of a molded case circuit breaker without digital display according to an embodiment.
Detailed Description
In one embodiment, in order to make the objects, technical solutions and advantages of the present invention more apparent, a molded case circuit breaker without a digital display according to the present invention is described in further detail below with reference to fig. 1 to 3 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The molded case circuit breaker without digital display in the embodiment comprises a circuit board assembly 7, a switching-on and switching-off assembly, a magnetic flux mechanism 5 and an LED indicator lamp, wherein the circuit board assembly 7 comprises a main control circuit, a wireless communication circuit, an electrical parameter measuring circuit and a power supply circuit;
the electrical parameter measuring circuit comprises a current sampling coil 6; the opening and closing component comprises an incoming line terminal 1, a moving contact 2, a static contact 3, an outgoing line terminal 4, a linkage mechanism 8 and a connecting line;
the current sampling coil 6 is connected with the outlet terminal 4, and the magnetic flux mechanism 5 is connected with the linkage mechanism 8; the data input end of the main control circuit is connected with the data output end of the electrical parameter measuring circuit, and the data output end of the main control circuit is connected with the data input end of the wireless communication circuit; the data output end of the wireless communication circuit is connected with a terminal; and the data output end of the main control circuit is connected with the LED indicator lamp.
In this embodiment, the molded case circuit breaker without digital display further includes a physical opening/closing indication board.
In this embodiment, the physical opening/closing indication board includes an area written with a word, and is used for indicating an opening/closing state of the circuit breaker opening/closing. When the breaker is switched on and off, the physical switch-on and switch-off indicating plate shows the region written with the word; when the breaker is switched on and off, the physical switching on and off indicating plate shows the area written with the combined characters.
In this embodiment, the molded case circuit breaker does not have any digital display device, and the operating state is indicated by the LED lamp and the physical opening/closing indication board. The user does not need any setting operation, and the circuit breaker can normally work, reduces to be in unreasonable operating condition because of the manual operation setting of people makes the circuit breaker.
In this embodiment, the electrical parameter measuring circuit includes a temperature obtaining module, an electrical parameter obtaining module, a first conditioning circuit, a second conditioning circuit, an analog-to-digital converter, and a quantization module.
In this embodiment, the data output end of the temperature obtaining module is connected to the data input end of the first conditioning circuit, and the data output end of the electrical parameter obtaining module is connected to the data input end of the second conditioning circuit.
In this embodiment, the data output ends of the first and second conditioning circuits are connected to the data input end of the analog-to-digital converter, the data output end of the analog-to-digital converter is connected to the data input end of the quantization module, and the data output end of the quantization module is connected to the data input end of the main control circuit.
In this embodiment, the electrical parameter acquisition module includes a current sampling coil 6 for acquiring current parameters and a plurality of electrical parameter sensors for acquiring electrical parameters of a circuit; the temperature acquisition module comprises a temperature sensor for acquiring the ambient temperature of the circuit.
In this embodiment, the temperature acquisition module sends a resistance signal of the temperature sensor to the first conditioning circuit, the first conditioning circuit converts the resistance signal into a voltage signal, the first conditioning circuit sends the converted voltage signal to the analog-to-digital converter, the analog-to-digital converter converts the voltage signal into a digital signal and sends the digital signal to the quantization module, and the quantization module obtains final temperature information through calculation and outputs the temperature information to the main control circuit.
Wherein, the temperature value A is calculated according to the following formula, wherein N is a quantitative calculation result, Kt is a conversion coefficient, and U isxIs the instantaneous sampled voltage across the temperature sensor.
B＝N*Kt
In this embodiment, the current sampling coil 6 sends the acquired current signal to the second conditioning circuit, the second conditioning circuit converts the current signal into a voltage signal, the second conditioning circuit sends the converted voltage signal to the analog-to-digital converter, the analog-to-digital converter converts the voltage signal into a digital signal and sends the digital signal to the quantization module, and the quantization module obtains final current information through calculation and outputs the current information to the main control circuit.
Wherein the current measurement value A is calculated according to the following formula, wherein M is a quantitative calculation result, K is a conversion coefficient, and U isxThe instantaneous sampled voltage across the current sampling coil 6.
A＝M*K
In this embodiment, the electrical parameter measuring circuit may further measure a three-phase balance degree of the circuit, where the three-phase balance degree C is calculated according to the following formula, and Ia, Ib, and Ic are current values of each phase, respectively.
C＝(max(Ia,Ib,Ic)-min(Ia,Ib,Ic))/max(Ia,Ib,Ic)
In this embodiment, the electrical parameter measurement circuit may further measure whether the circuit breaker leaks electricity according to the current information and the voltage information acquired by the point parameter acquisition module.
In this embodiment, the wireless communication circuit is wirelessly connected to an upper gateway or a server.
In this embodiment, the molded case circuit breaker without digital display may transmit information such as current, voltage, temperature, three-phase balance, whether or not electric leakage and the like quantized by the electric parameter measurement circuit to an upper gateway or a server through a wireless network, and display the data in the background.
In this embodiment, the molded case circuit breaker without digital display further includes an electrical parameter threshold storage module for storing an electrical parameter threshold set by a user through the upper gateway or the server.
In this embodiment, through a wireless network, a user may download a professional protection policy into the circuit breaker, and implement protection on the circuit breaker according to an electrical parameter threshold in the policy.
In this embodiment, the main control circuit is implemented by using a single chip microcomputer.
In this embodiment, the casing of the molded case circuit breaker capable of opening and closing at regular time is a molded case.
Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. A plastic case circuit breaker without digital display comprises a circuit board assembly, a switching-on and switching-off assembly, a magnetic flux mechanism and an LED indicator lamp, and is characterized in that the circuit board assembly comprises a master control circuit, a wireless communication circuit, an electrical parameter measuring circuit and a power supply circuit;
the electrical parameter measuring circuit comprises a current sampling coil; the switching-on and switching-off component comprises an incoming line terminal, a moving contact, a fixed contact, an outgoing line terminal, a linkage mechanism and a connecting line;
the current sampling coil is connected with the wire outlet terminal, and the magnetic flux mechanism is connected with the linkage mechanism; the data input end of the main control circuit is connected with the data output end of the electrical parameter measuring circuit, and the data output end of the main control circuit is connected with the data input end of the wireless communication circuit; the data output end of the wireless communication circuit is connected with a terminal; and the data output end of the main control circuit is connected with the LED indicator lamp.
2. The plastic case circuit breaker without digital display of claim 1, further comprising a physical opening and closing indication plate.
3. The plastic case circuit breaker without digital display of claim 1, wherein the electrical parameter measuring circuit comprises a temperature obtaining module, an electrical parameter obtaining module, a first conditioning circuit, a second conditioning circuit, an analog-to-digital converter, and a quantization module.
4. The plastic case circuit breaker without digital display of claim 3, wherein the data output terminal of the temperature obtaining module is connected to the data input terminal of the first conditioning circuit, and the data output terminal of the electrical parameter obtaining module is connected to the data input terminal of the second conditioning circuit.
5. The plastic case circuit breaker without digital display of claim 3, wherein the data output terminals of the first and second conditioning circuits are connected to the data input terminal of the analog-to-digital converter, the data output terminal of the analog-to-digital converter is connected to the data input terminal of the quantization module, and the data output terminal of the quantization module is connected to the data input terminal of the main control circuit.
6. The plastic case circuit breaker without digital display of claim 3, wherein the electrical parameter acquisition module comprises a current sampling coil for acquiring current parameters and a plurality of electrical parameter sensors for acquiring electrical parameters of a circuit; the temperature acquisition module comprises a temperature sensor for acquiring the ambient temperature of the circuit.
7. The plastic case circuit breaker without digital display of claim 1, wherein the wireless communication circuit is wirelessly connected with an upper gateway or a server.
8. The plastic case circuit breaker without digital display of claim 7, further comprising an electrical parameter threshold value storing module for storing an electrical parameter threshold value set by a user through the upper gateway or the server.
9. The molded case circuit breaker without digital display of claim 1, wherein the main control circuit is implemented by a single chip microcomputer.
10. The plastic case circuit breaker without digital display of claim 1, wherein the plastic case circuit breaker housing without digital display is a plastic case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121345253.4U CN216015236U (en) | 2021-06-16 | 2021-06-16 | Plastic case circuit breaker without digital display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121345253.4U CN216015236U (en) | 2021-06-16 | 2021-06-16 | Plastic case circuit breaker without digital display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216015236U true CN216015236U (en) | 2022-03-11 |
Family
ID=80524239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121345253.4U Active CN216015236U (en) | 2021-06-16 | 2021-06-16 | Plastic case circuit breaker without digital display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216015236U (en) |
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2021
- 2021-06-16 CN CN202121345253.4U patent/CN216015236U/en active Active
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