CN218069756U

CN218069756U - Current and temperature information acquisition structure of miniature circuit breaker

Info

Publication number: CN218069756U
Application number: CN202221793199.4U
Authority: CN
Inventors: 杜建中; 刘杰; 周航
Original assignee: Jiangsu Xindali Electric Co ltd
Current assignee: Jiangsu Xindali Electric Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-16
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a miniature circuit breaker's electric current and temperature information collection structure, including installing electric current sampling board, moving contact system, electric current collection module, temperature sensor and the 8 core pin headers in the circuit breaker body, the signal acquisition structure is still including installing the control panel in the electric operator mechanism, the leading-out terminal in moving contact system is connected to the electric current collection module, and the signal line of electric current collection module welds on the electric current sampling board, temperature sensor contacts with the leading-out terminal of moving contact system, and the last control by temperature change detection line of temperature sensor welds on the electric current sampling board, when circuit breaker body and electric operator mechanism splice, arranges the pin through 8 cores and is connected electric current sampling board and control panel, then with current signal and control by temperature change signal transfer to control panel. When circuit breaker body and electricity behaviour mechanism concatenation, arrange the needle through 8 cores and be connected current sampling board and control panel, then with current signal and temperature control signal transmission to control panel.

Description

Current and temperature information acquisition structure of miniature circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a miniature circuit breaker's electric current and temperature information acquisition structure.

Background

The series of miniature circuit breakers have the functions of measuring the temperature of current, voltage and cables and measuring electric energy and power lamps, and also have the functions of overload protection, short-circuit protection, overvoltage and undervoltage protection, automatic reclosing and remote control. The series of products are suitable for application occasions such as unattended operation, centralized control, inconvenient operation, network monitoring and the like in the communication field.

Because this series of circuit breaker control unit current signal gathers the mutual-inductor component in the circuit breaker body, at present mostly mutual-inductor signal line lug connection supplies its collection current signal to the control unit, not only influences production assembly efficiency, when involving multipolar product production simultaneously, can't realize the modularization and assemble, and the signal line is crisscross mixed and disorderly, bad phenomena such as the wire damage easily appears, phase sequence connection error exist and use electric potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a miniature circuit breaker's electric current and temperature information acquisition structure to solve present circuit breaker and can't realize the modularization and assemble, and the crisscross mixed and disorderly problem of signal line.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a miniature circuit breaker's electric current and temperature information acquisition structure, the circuit breaker has the circuit breaker body, with this body coupling's of circuit breaker electricity behaviour mechanism, the information acquisition structure is including installing electric current sampling board, moving contact system, current acquisition module, temperature sensor and 8 core pin headers in the circuit breaker body, and the information acquisition structure is still including installing the control panel in the electricity behaviour mechanism, current acquisition module connects in moving contact system's leading-out terminal, and current acquisition module's signal line welds on the electric current sampling board, temperature sensor contacts with moving contact system's leading-out terminal, and the last control by temperature change detection line of temperature sensor welds on the electric current sampling board, when circuit breaker body and electricity behaviour mechanism splice, is connected electric current sampling board and control panel through 8 core pin headers, then with electric current signal and control by temperature change signal transfer to control panel.

Preferably, the current collection module is a current transformer which is penetrated through the outlet end of the moving contact system.

Preferably, the current sampling plate is sequentially provided with an A-phase temperature sensor welding point, a B-phase temperature sensor welding point, a C-phase temperature sensor welding point, a temperature sensor common welding point, an A-phase current transformer welding point, a B-phase current transformer welding point, a C-phase current transformer welding point and a current transformer common welding point.

Preferably, the current collection module is a manganin shunt which is welded at the outlet end of the moving contact system.

Preferably, the current sampling plate is sequentially provided with a positive temperature sensor welding point, a negative temperature sensor welding point, a temperature sensor common welding point, a positive manganin shunt welding point and a negative manganin shunt welding point.

Preferably, the both sides of current sampling board are equipped with 8 cores row mother that match with 8 cores row needle, also be equipped with on the control panel and arrange mother with 8 cores that 8 cores row needle matches.

Compared with the prior art, the utility model discloses possess following beneficial effect:

when circuit breaker body and electricity behaviour mechanism splice, arrange the needle through 8 cores and be connected current sampling board and control panel, then with current signal and temperature control signal transfer to control panel, need not the signal line and connect, the crisscross mixed and disorderly condition of signal line can not appear, has improved the power consumption security, can realize moreover that the modularization is assembled, the production assembly of being convenient for.

Drawings

Figure 1 is a schematic diagram of a circuit breaker;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 isbase:Sub>A sectional view A-A of FIG. 2;

fig. 4 is a schematic view of a first embodiment of the present invention;

fig. 5 is a schematic view of a second embodiment of the present invention;

FIG. 6 is a cross-sectional view of the electrically operated mechanism;

FIG. 7 is a schematic view of a current sampling plate;

fig. 8 shows a welding position where the current sampling plate of the first embodiment is applied to an ac product, and the current signal and the temperature control signal of each phase of circuit breaker are collected;

FIG. 9 is a diagram of a welding position of current signals and temperature control signals of the positive and negative circuit breakers applied to a DC product according to the second embodiment;

FIG. 10 is a schematic view of an 8-core pin header;

FIG. 11 is a schematic view of a control panel;

in the figure: the circuit breaker comprises a circuit breaker body 1, an electric operation mechanism 2, a current sampling plate 3, a moving contact system 4, a temperature sensor 5, a core pin 6-8, a control plate 7, a current transformer 8, a phase temperature sensor 9-A, a phase temperature sensor 10-B, a phase temperature sensor 11-C, a phase temperature sensor common welding point 12, a phase current transformer 13-A, a phase current transformer 14-B, a phase current transformer 15-C, a current transformer 16, a manganin shunt 17, a positive temperature sensor welding point 18, a negative temperature sensor 19, a temperature sensor common welding point 20, a positive manganin shunt 21 and a negative manganin 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-11, a current and temperature information collecting structure of a miniature circuit breaker, the circuit breaker has a circuit breaker body 1 and an electric operating mechanism 2 connected with the circuit breaker body 1, and is characterized in that the information collecting structure includes a current sampling plate 3 installed in the circuit breaker body 1, a moving contact system 4, a current collecting module, a temperature sensor 5 and an 8-core pin header 6, the information collecting structure further includes a control board 7 installed in the electric operating mechanism 2, the current collecting module is connected to a wire outlet end of the moving contact system 4, a signal wire of the current collecting module is welded on the current sampling plate 3, the temperature sensor 5 is in contact with the wire outlet end of the moving contact system 4, a temperature control detection wire on the temperature sensor 5 is welded on the current sampling plate 3, two sides of the current sampling plate 3 are provided with 8-core pin headers matched with the 8-core pin headers 6, and the control board 7 is also provided with 8-core pin headers matched with the 8-core pin headers 6; when circuit breaker body 1 and the concatenation of electricity behaviour mechanism 2, arrange the needle 6 through 8 cores and be connected current sampling board 3 with control panel 7, then with current signal and temperature control signal transmission to control panel 7.

Referring to fig. 4, a first embodiment of the current collecting module is shown: the current acquisition module is a current transformer 8 which is penetrated at the outlet end of the moving contact system 4. A phase A temperature sensor welding point 9, a phase B temperature sensor welding point 10, a phase C temperature sensor welding point 11, a temperature sensor common welding point 12, a phase A current transformer welding point 13, a phase B current transformer welding point 14, a phase C current transformer welding point 15 and a current transformer common welding point 16 are sequentially arranged on the current sampling plate 3.

Referring to fig. 5, a second embodiment of the current collecting module is shown: the current collection module is a manganin shunt 17 which is welded at the outlet end of the moving contact system 4. And the current sampling plate 3 is sequentially provided with a positive temperature sensor welding point 18, a negative temperature sensor welding point 19, a temperature sensor common welding point 20, a positive manganin shunt welding point 21 and a negative manganin shunt welding point 22.

To sum up, when circuit breaker body 1 and the concatenation of electrical operation mechanism 2, arrange the needle 6 through 8 cores and be connected current sampling board 3 and control panel 7, then with current signal and temperature control signal conveying to control panel 7, need not the signal line and connect, the crisscross mixed and disorderly condition of signal line can not appear, has improved the power consumption security, can realize the modularization moreover and assemble, is convenient for produce the assembly.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a miniature circuit breaker's electric current and temperature information acquisition structure, the circuit breaker has circuit breaker body (1), the electric control mechanism (2) of being connected with circuit breaker body (1), a serial communication port, the information acquisition structure is including installing electric current sampling board (3), moving contact system (4), current acquisition module, temperature sensor (5) and 8 core pin headers (6) in circuit breaker body (1), the information acquisition structure is still including installing control panel (7) in electric control mechanism (2), current acquisition module connects in the leading-out terminal of moving contact system (4), and current acquisition module's signal line welds on electric current sampling board (3), temperature sensor (5) and the leading-out terminal contact of moving contact system (4), and the control by temperature change detection line on temperature sensor (5) welds on electric current sampling board (3), when circuit breaker body (1) and electric control mechanism (2) splice, is connected electric current sampling board (3) and control panel (7) through 8 core pin headers (6), then with electric current signal and control by temperature change signal conveying to control panel (7).

2. The current and temperature information collecting structure of a small-sized circuit breaker according to claim 1, wherein: the current acquisition module is a current transformer (8) which penetrates through a wire outlet end of the moving contact system (4).

3. The current and temperature information collecting structure of a small-sized circuit breaker according to claim 2, wherein: the current sampling plate (3) is sequentially provided with an A-phase temperature sensor welding point (9), a B-phase temperature sensor welding point (10), a C-phase temperature sensor welding point (11), a temperature sensor common welding point (12), an A-phase current transformer welding point (13), a B-phase current transformer welding point (14), a C-phase current transformer welding point (15) and a current transformer common welding point (16).

4. The current and temperature information collecting structure of a small-sized circuit breaker according to claim 1, wherein: the current acquisition module is a manganin shunt (17) which is welded at the outlet end of the moving contact system (4).

5. The current and temperature information collecting structure of a small-sized circuit breaker according to claim 4, wherein: the current sampling plate (3) is sequentially provided with a positive temperature sensor welding point (18), a negative temperature sensor welding point (19), a temperature sensor common welding point (20), a positive manganin shunt welding point (21) and a negative manganin shunt welding point (22).

6. The current and temperature information collecting structure of a small circuit breaker according to claim 2 or 4, wherein: the both sides of current sampling board (3) are equipped with 8 cores row mother that arrange needle (6) and match with 8 cores, also be equipped with on control panel (7) and arrange mother with 8 cores row needle (6) matching's 8 cores.