CN219936968U - Measurement breaker with completely isolated strong and weak current channels - Google Patents
Measurement breaker with completely isolated strong and weak current channels Download PDFInfo
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- CN219936968U CN219936968U CN202321709564.3U CN202321709564U CN219936968U CN 219936968 U CN219936968 U CN 219936968U CN 202321709564 U CN202321709564 U CN 202321709564U CN 219936968 U CN219936968 U CN 219936968U
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- 238000005259 measurement Methods 0.000 title description 7
- 238000005070 sampling Methods 0.000 claims abstract description 20
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 13
- 230000005611 electricity Effects 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a measuring circuit breaker with a completely isolated strong and weak current channel in the related technical field of circuit breakers, which comprises a circuit breaker base, a bottom plate, a line concentration circuit board, a pin header, a control circuit board and a control box, wherein a lead slot is formed in the bottom of the circuit breaker base, a special strong and weak current channel is formed in the top surface of the circuit breaker base, the line concentration circuit board is arranged in the circuit breaker base, a strong current voltage sampling terminal is arranged at the bottom of the circuit breaker base and is connected with the line concentration circuit board through a first lead, and a line inlet end temperature sensor is arranged at the bottom of the circuit breaker base.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a measuring circuit breaker with a strong and weak current channel completely isolated.
Background
In recent years, along with the development of the technology of the internet of things and the intelligent demand of the power distribution field on intelligent terminal products, intelligent circuit breakers with functions of metering, communication, terminal temperature measurement and the like are used in a 400V power utilization system at the rear end of a transformer in the power distribution field, and particularly, the technical specification of intelligent measuring switch is issued by a national power grid in the early 2022, the related functions and the external dimensions of the intelligent circuit breakers are clarified, the space of the measuring circuit breakers is compact, the structural demands of current power supply, current sampling, temperature sampling and the like are fused, the weak current sampling part and the strong current part of the traditional circuit breaker are connected in a conductive line mode generally, the traditional circuit breakers are mixed together, the problems of broken skin of a conducting wire, breakdown and short circuit caused by small electric clearance are easy to occur, an electronic board and the circuit breakers are damaged, and therefore, the measuring circuit breaker structure with complete isolation of the strong current and the weak current channels is required to be designed for the problems, and the problems are completely eradicated.
In the prior art, the sampling transformer and the temperature sensor are generally required to be installed in the same cavity as the strong electric cable, and the lead wire is basically an insulated copper core wire, so that the wire is usually reserved longer based on the assembly requirement, the position of the wire is not fixed after the assembly, the distance between the wire and the strong electric conducting bar is also uncontrollable, and if the insulating cover of the insulated copper core wire is broken or cracked, the breakdown short circuit between the wire and the strong electric conducting bar is easily caused, so that the problem of damage of the circuit breaker is easily caused. Therefore, we propose a measurement breaker with completely isolated strong and weak current channels to solve the above mentioned problems.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
Therefore, the utility model aims to provide a measuring breaker with completely isolated strong and weak current channels, which can solve the problems that the existing breaker is easy to break down and short circuit with the strong current conducting bar due to the fact that a sampling transformer and a temperature sensor are required to be installed in the same cavity with the strong current conducting cable, and the lead wire is basically an insulated copper core lead wire, and the lead wire is usually reserved for a long time based on the assembly requirement, the position of the lead wire is not fixed after the assembly, and the distance between the lead wire and the strong current conducting bar is not controllable, for example, the insulated copper core lead wire has a broken insulating skin or a crack, so that the breaker is easy to damage.
In order to solve the technical problems, the utility model provides a measuring breaker with a strong and weak current channel completely isolated, which adopts the following technical scheme: including circuit breaker base, bottom plate, line concentration circuit board, row needle, control circuit board and control box, the wire casing has been seted up to the bottom of circuit breaker base, strong and weak current dedicated channel has been seted up to the top surface of circuit breaker base, line concentration circuit board sets up inside the circuit breaker base, circuit breaker base bottom is provided with strong electric voltage sampling terminal, strong electric voltage sampling terminal is connected through setting up first wire with the line concentration circuit board, circuit breaker base bottom is provided with inlet wire end temperature sensor, inlet wire end temperature sensor is connected through setting up the second wire with the line concentration circuit board, the control circuit board sets up inside the circuit breaker base, the line concentration circuit board is connected through the row needle with the control circuit board, the bottom plate passes through the fix with screw on the circuit breaker base, the control box sets up in the circuit breaker base one side of keeping away from the bottom plate.
Through adopting above-mentioned technical scheme, this scheme strong current voltage sampling terminal gets voltage signal after the inlet wire end, lead to the line concentration circuit board voltage terminal by first wire through left side lead wire groove, line concentration circuit board terminal converts the lead wire into the row needle, rethread row needle is led voltage signal to control circuit board through the strong current channel of circuit breaker base in, on the temperature measurement socket of line concentration circuit board is connected through right side lead wire groove by the second wire after inlet wire end temperature sensor sampling, line concentration circuit board gathers the weak current channel at circuit breaker base above and converts the line concentration into the row needle, then lead voltage signal to control circuit board through the weak current channel of line concentration needle through base in.
Optionally, the number of the lead grooves is two, the two lead grooves are respectively a strong current lead groove and a weak current lead groove, the first wire is arranged inside the strong current lead groove, the second wire is arranged inside the weak current lead groove, and the first wire and the second wire are ABC wires.
Through adopting above-mentioned technical scheme, this scheme has two lead grooves be convenient for assemble respectively first wire and second wire to be convenient for keep apart strong and weak electricity completely.
Optionally, the strong and weak current special channel comprises a strong current channel and a weak current channel.
Through adopting above-mentioned technical scheme, this scheme is convenient for assemble the row needle through the through-hole, is convenient for carry the current signal to the control circuit board in through the row needle.
Optionally, the number of the pins is two, and the two pins are respectively arranged in the strong current channel and the weak current channel.
Through adopting above-mentioned technical scheme, this scheme is convenient for carry strong electric signal and weak current signal respectively through two row needle cooperation.
Optionally, the line-out end temperature measuring sensor is installed on the line-collecting circuit board and is connected with the second lead.
Through adopting above-mentioned technical scheme, this scheme is convenient for carry out temperature measurement processing and carry the detection data to the line outlet of second wire in the line concentration circuit board through line outlet temperature sensor.
Optionally, three strong electric cavities are formed inside the circuit breaker base and the base plate after being buckled, ABC phase current metering sensors are arranged in the strong electric cavities, outgoing lines of the ABC phase current metering sensors are directly exposed out of the upper portion of the line concentration circuit board, and sampling lines of the ABC phase current metering sensors are spliced on the line concentration circuit board through terminals.
In summary, the present utility model includes at least one of the following beneficial effects: 1. the wiring channels are designed to be completely isolated respectively for strong and weak currents, so that the problem of insulation breakdown between the strong current and the weak current of the circuit breaker is solved, and the fully-closed channels penetrating through the strong current and the weak current of the cavity are completely isolated from the strong current cavity of the circuit breaker, so that the possibility of damage to the circuit breaker is reduced;
2. the design of line concentration circuit board and row needle solves the mutual winding of wire, and the unset problem of surplus line position to this scheme assembly method is unique, has the mistake proofing function and has avoided wire terminal grafting mistake problem, thereby reduces strong electric lead and weak electric lead and mix the hidden danger that causes the puncture short circuit together.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a bottom trace of the present utility model;
FIG. 2 is a schematic diagram of a base plate structure according to the present utility model;
fig. 3 is a schematic perspective view of a circuit breaker base according to the present utility model;
FIG. 4 is a rear cross-sectional view of the overall structure of the present utility model;
FIG. 5 is a schematic diagram of the overall structure of the present utility model;
FIG. 6 is a rear cross-sectional view of the overall structure of the present utility model;
fig. 7 is a right side cross-sectional view of the overall structure of the present utility model.
Reference numerals illustrate: 1. a circuit breaker base; 2. a bottom plate; 3. a hub circuit board; 4. arranging needles; 5. a control circuit board; 6. a control box; 7. a wire slot; 71. strong-current lead slot; 72. weak current lead slot; 8. a strong and weak current special channel; 81. a strong current channel; 82. a weak current channel; 9. a strong current voltage sampling terminal; 11. the wire inlet end temperature measuring sensor; 12. a second wire; 13. an ABC phase current metering sensor; 14. the temperature measuring sensor of the wire outlet end; 15. a strong electric cavity.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-7.
Referring to fig. 1-7, in this embodiment, in order to solve the problem that the existing circuit breaker is generally required to be installed in the same cavity as the strong electric conduction cable, and the lead wire is basically an insulated copper core wire, and is usually reserved longer based on assembly requirements, the position of the wire is not fixed and the distance between the wire and the strong electric conduction bar is not controllable after assembly, for example, the insulation sheath of the insulated copper core wire is damaged or broken to easily cause breakdown short circuit with the strong electric conduction bar, so that the circuit breaker is easy to damage,
including circuit breaker base 1, bottom plate 2, line concentration circuit board 3, row needle 4, control circuit board 5 and control box 6, wire groove 7 has been seted up to the bottom of circuit breaker base 1, strong and weak current dedicated channel 8 has been seted up to the top surface of circuit breaker base 1, strong and weak current dedicated channel 8 includes strong electric channel 81 and weak current channel 82, is convenient for assemble row needle 4 through the through-hole, is convenient for carry the current signal to control circuit board 5 in through row needle 4 to be convenient for carry strong electric signal and weak electric signal respectively through strong electric channel 81 and weak current channel 82.
The line concentration circuit board 3 is arranged inside the circuit breaker base 1, a strong electric voltage sampling terminal 9 is arranged at the bottom of the circuit breaker base 1, the strong electric voltage sampling terminal 9 is connected with the line concentration circuit board 3 through a first lead 10, and after the voltage signal is taken at the line inlet end by the strong electric voltage sampling terminal 9, the voltage signal is led to the voltage terminal of the line concentration circuit board 3 through a left lead groove 7 by the first lead 10.
The circuit breaker base 1 bottom is provided with incoming line end temperature sensor 11, and incoming line end temperature sensor 11 is connected through setting up second wire 12 with line concentration circuit board 3, and incoming line end temperature sensor 11 samples the back and connects to the temperature measurement socket of line concentration circuit board 3 through right side lead groove 7 and second wire 12 cooperation.
The control circuit board 5 sets up inside circuit breaker base 1, and the line concentration circuit board 3 is connected through row needle 4 with control circuit board 5, and the quantity of row needle 4 is two, and two row needles 4 set up respectively at strong electric channel 81 and weak current channel 82, are convenient for carry strong electric signal and weak electric signal respectively through two row needle 4 cooperation to be convenient for separate strong electric signal and weak electric signal through strong electric channel 81 and weak electric channel 82 cooperation.
The bottom plate 2 is fixed on the circuit breaker base 1 through the screw, and control box 6 sets up in circuit breaker base 1 one side of keeping away from bottom plate 2, is convenient for fix bottom plate 2 on circuit breaker base 1 through the screw, is convenient for control circuit breaker through control box 6, and the control box is prior art.
The quantity of wire groove 7 is two, and two wire grooves 7 divide into strong electricity wire groove 71 and weak electricity wire groove 72, and first wire 10 sets up inside strong electricity wire groove 71, and second wire 12 sets up inside weak electricity wire groove 72, and first wire 10 and second wire 12 are ABC wire, are convenient for assemble respectively first wire 10 and second wire 12 through two wire grooves 7 to be convenient for with strong and weak electricity isolation completely, stop the insulation breakdown problem between the circuit breaker strong and weak electricity.
The line-out end temperature measuring sensor 14 is arranged on the line-collecting circuit board 3 and connected with the second lead 12, and the line-out end temperature measuring sensor 14 is convenient for carrying out temperature measuring treatment on the line-out end of the second lead 12 and conveying detection data into the line-collecting circuit board 3.
The circuit breaker base 1 forms three strong current chamber 15 with inside after bottom plate 2 lock to be used for bearing distribution lines's electric current, separated between three strong current chamber 15, thereby be convenient for be insulated between the ABC interphase, be provided with ABC looks current measurement sensor 13 in the strong current chamber 15, ABC looks current measurement sensor 13's lead-out wire directly exposes on line concentration circuit board 3 upper portion, ABC looks current measurement sensor 13's sampling wire passes through the terminal grafting on line concentration circuit board 3, is convenient for gather the current value that each looks flowed through ABC looks current measurement sensor 13, and quiet data transport is in the line concentration circuit board 3.
The specific working principle is as follows: after the strong-current voltage sampling terminal 9 takes a voltage signal at the wire inlet end, the voltage signal is led to the voltage terminal of the line concentration circuit board 3 through the left lead groove 7 by the first lead wire 10, the line concentration circuit board 3 terminal converts the lead wire into the pin 4, and then the voltage signal is led to the control circuit board 5 through the pin 4 through the strong-current channel 81 of the breaker base 1;
the wire inlet end temperature measuring sensor 11 is connected to a temperature measuring socket of the wire collecting circuit board 3 through the right side wire leading groove 7 after being sampled, the wire collecting circuit board 3 gathers the weak current signal wires on the weak current channel 82 of the breaker base 1 and converts the weak current signal wires into the pin array 4, and then the voltage signals are led into the control circuit board 5 through the pin array 4 through the weak current channel 82 of the base;
the wiring channels are designed to be completely isolated respectively by strong and weak currents, so that the problem of insulation breakdown between the strong current and the weak current of the circuit breaker is solved, and the fully-closed channels penetrating through the strong current and the weak current of the cavity are completely isolated from the strong current cavity 15 of the circuit breaker.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (6)
1. The utility model provides a strong and weak electric passageway is isolated completely and is surveyed circuit breaker, includes circuit breaker base (1), bottom plate (2), line concentration circuit board (3), row needle (4), control circuit board (5) and control box (6), its characterized in that: the circuit breaker is characterized in that a wire guide groove (7) is formed in the bottom of the circuit breaker base (1), a strong and weak current special channel (8) is formed in the top surface of the circuit breaker base (1), the wire collecting circuit board (3) is arranged inside the circuit breaker base (1), a strong current voltage sampling terminal (9) is arranged at the bottom of the circuit breaker base (1), the strong current voltage sampling terminal (9) is connected with the wire collecting circuit board (3) through a first conducting wire (10), a wire inlet end temperature measuring sensor (11) is arranged at the bottom of the circuit breaker base (1), the wire inlet end temperature measuring sensor (11) is connected with the wire collecting circuit board (3) through a second conducting wire (12), the control circuit board (5) is arranged inside the circuit breaker base (1), the wire collecting circuit board (3) is connected with the control circuit board (5) through a pin (4), the bottom plate (2) is fixed on the circuit breaker base (1) through a screw, and the control box (6) is arranged on one side of the circuit breaker base (1) away from the bottom plate (2).
2. The measuring circuit breaker of claim 1, wherein the strong and weak current channels are completely isolated, and the measuring circuit breaker is characterized in that: the number of the lead grooves (7) is two, the two lead grooves (7) are divided into a strong-current lead groove (71) and a weak-current lead groove (72), the first lead (10) is arranged inside the strong-current lead groove (71), the second lead (12) is arranged inside the weak-current lead groove (72), and the first lead (10) and the second lead (12) are ABC leads.
3. The measuring circuit breaker of claim 1, wherein the strong and weak current channels are completely isolated, and the measuring circuit breaker is characterized in that: the strong and weak current special channel (8) comprises a strong current channel (81) and a weak current channel (82), and the pin header (4) is conveniently assembled through the through hole.
4. A measuring circuit breaker with completely isolated strong and weak current channels according to claim 3, characterized in that: the number of the pin headers (4) is two, and the two pin headers (4) are respectively arranged in the strong current channel (81) and the weak current channel (82).
5. The measuring circuit breaker of claim 1, wherein the strong and weak current channels are completely isolated, and the measuring circuit breaker is characterized in that: the line concentration circuit board (3) is provided with a line outlet end temperature measuring sensor (14) and is connected with the second lead (12).
6. The measuring circuit breaker of claim 1, wherein the strong and weak current channels are completely isolated, and the measuring circuit breaker is characterized in that: three strong electric cavities (15) are formed inside the circuit breaker base (1) and the base plate (2) after being buckled, ABC phase current metering sensors (13) are arranged in the strong electric cavities (15), outgoing lines of the ABC phase current metering sensors (13) are directly exposed out of the upper portion of the line concentration circuit board (3), and sampling lines of the ABC phase current metering sensors (13) are spliced on the line concentration circuit board (3) through terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321709564.3U CN219936968U (en) | 2023-06-30 | 2023-06-30 | Measurement breaker with completely isolated strong and weak current channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321709564.3U CN219936968U (en) | 2023-06-30 | 2023-06-30 | Measurement breaker with completely isolated strong and weak current channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936968U true CN219936968U (en) | 2023-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321709564.3U Active CN219936968U (en) | 2023-06-30 | 2023-06-30 | Measurement breaker with completely isolated strong and weak current channels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936968U (en) |
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2023
- 2023-06-30 CN CN202321709564.3U patent/CN219936968U/en active Active
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