CN212182248U

CN212182248U - Intelligent sensing device for electric leakage type of electric power internet of things molded case circuit breaker

Info

Publication number: CN212182248U
Application number: CN202021377640.1U
Authority: CN
Inventors: 叶子豪
Original assignee: Jiangsu Beichen Electrical Equipment Co ltd
Current assignee: Jiangsu Beichen Electrical Equipment Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-12-18
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses an electric power thing networking is intelligent sensing device of electric leakage type for moulded case circuit breaker, including moulded case circuit breaker and electric leakage sensing device, electric leakage sensing device and moulded case circuit breaker joint; electric leakage perception device includes the casing, is equipped with mutual-inductor, quiet iron core in the casing, moves iron core, motion piece, indicator plate and pilot lamp module, winding coil on the mutual-inductor and on the quiet iron core is connected, when there is leakage current, moves the iron core and removes from the quiet iron core of initial position orientation, and the motion piece breaks away from moving blockking of iron core, upwards plays under the elastic action of second spring, makes the indicator plate surpass housing face, and the pilot lamp scintillation. The utility model discloses a flashing of pilot lamp suggestion staff appears the electric leakage condition, simple to operate and dependable performance.

Description

Intelligent sensing device for electric leakage type of electric power internet of things molded case circuit breaker

Technical Field

The utility model relates to an electric power thing networking is intelligent sensing device of electric leakage type for moulded case circuit breaker is applied to electric power tech field.

Background

The plastic case circuit breaker is also called as a device type circuit breaker, and a contact, an arc extinguish chamber, a release, an operating mechanism and the like are all arranged in a plastic case, so that the plastic case circuit breaker is generally applicable to serving as a protection switch of a branch circuit without considering maintenance. The overcurrent release has two types of thermomagnetic type and electronic type, the general thermomagnetic type molded case circuit breaker is a nonselective circuit breaker and only has two protection modes of overload long delay and short circuit instant, and the electronic type molded case circuit breaker has four protection functions of overload long delay, short circuit short delay, short circuit instant and ground fault.

As disclosed in publication No. CN207381346U, a molded case circuit breaker includes a main housing including a base and an intermediate cover covering the base, wherein a first rib-shaped partition wall is provided on the intermediate cover, and a second rib-shaped partition wall corresponding to the first rib-shaped partition wall is provided on the base, the first rib-shaped partition wall and the second rib-shaped partition wall are matched to partition an inner space of the main housing, so as to form at least two accommodating spaces side by side, and a main circuit unit is provided in the accommodating space. The method is characterized in that: the molded case circuit breaker further comprises a temperature monitoring device, the first rib-shaped partition wall is provided with a first insertion hole, and the temperature monitoring device detects the temperature of the main circuit unit by being inserted into the first insertion hole from the upper surface of the middle cover so as to realize the online temperature detection of the molded case circuit breaker. The temperature rise condition of the circuit breaker during the operation can be effectively detected, the power system is protected from overload caused by over-current exceeding a critical value, a user is protected from fire hazard caused by overheating inside the circuit breaker, and the service life of the circuit breaker is prolonged.

The problem that prior art exists is that most of moulded case circuit breakers that exist on the market at present all only have overload protection and short-circuit protection, do not have the earth leakage protection function, and the temperature-detecting device that for example above-mentioned patent set up is also only for preventing current overload, can not detect out whether there is the electric leakage, consequently need design a perception electric leakage current's intelligent perception device, detects whether there is the electric leakage, instructs the electric leakage trouble, suggestion staff in time maintains.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, the utility model discloses utilize zero sequence transformer and electromagnetic induction principle, realize the perception of leaking electricity, gained better technological effect. In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electric power thing networking is intelligent sensing device of electric leakage type for moulded case circuit breaker, includes moulded case circuit breaker and electric leakage sensing device, its characterized in that: the electric leakage sensing device is clamped with the molded case circuit breaker.

The electric leakage sensing device comprises a shell, a mutual inductor is arranged in the shell, one end of a first conductor, one end of a second conductor and one end of a third conductor penetrate through the mutual inductor to be connected with the output end of the molded case circuit breaker, and the other end of the first conductor, the second conductor and the third conductor are connected with the input end of electric equipment; a first groove is formed in one side of the inner wall of the shell, a static iron core is fixedly installed in the first groove, a movable iron core is arranged on the side edge of the static iron core, and a first spring is arranged between the static iron core and the movable iron core; a second groove is formed in the other side of the inner wall of the shell, a second spring is installed at the bottom of the second groove, a moving block is connected to the second spring, an indicating plate is arranged on the moving block, and the top end of the indicating plate is flush with the surface of the shell; the mutual inductor is located below the first groove, and the static iron core is wound with the coil and connected with the mutual inductor.

Furthermore, an induction block is arranged on the indicating plate.

Further, the inside pilot lamp module that is equipped with of electric leakage perception device's casing, the pilot lamp module includes pilot lamp and inductor, the inductor is located when the opposite of indicator panel, and the position of response piece is corresponding when bounceing with the indicator panel.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses an electric power thing networking intelligent sensing device of electric leakage type for moulded case circuit breaker, through setting up mutual-inductor and quiet iron core and moving iron core, utilize the electromagnetic induction principle, move the iron core and cause the motion piece to bounce towards quiet iron core from the initial position when there is leakage current, the indicator panel pops out the shell surface, instructs the electric leakage; still set up the inductor that the response piece corresponds the pilot lamp module on the indicator board, the pilot lamp scintillation when the inductor senses the response piece indicates the electric leakage. In addition, adopt the mode of joint between circuit breaker and the electric leakage perception device, easy to assemble and dismantlement.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the utility model during normal operation;

fig. 3 is a schematic diagram of the internal structure of the present invention during electric leakage.

In the figure: the intelligent leakage detection device comprises a plastic case breaker 1, a leakage sensing device 2, a mutual inductor 3, a shell 4, a first groove 5, a static iron core 51, a first spring 52, a movable iron core 53, a second groove 6, a second spring 61, a motion block 62, an indicating plate 63, an induction block 64, an indicator light module 7, an indicator light 71 and an inductor 72.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the embodiments of the present invention and make the above objects, features and advantages of the present invention more obvious and understandable, the following description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Referring to fig. 1 to 3, an electric leakage type intelligent sensing device for a molded case circuit breaker of an electric power internet of things includes a molded case circuit breaker 1 and an electric leakage sensing device 2, and the electric leakage sensing device 2 is connected with the molded case circuit breaker 1 in a clamping manner.

The electric leakage sensing device 2 comprises a shell 4, a mutual inductor 3 is installed in the shell 4, and the mutual inductor 3 in the embodiment adopts a zero sequence current mutual inductor; one end of each of the first conductor, the second conductor and the third conductor passes through the mutual inductor 3 to be connected with the output end of the molded case circuit breaker 1, and the other end of each of the first conductor, the second conductor and the third conductor is connected with the input end of the electric equipment; casing 4 inner wall one side is equipped with first recess 5, and fixed mounting has quiet iron core 51 in the first recess 5, and the side of quiet iron core 51 is equipped with moves iron core 53, and quiet iron core 51 and move and be equipped with first spring 52 between the iron core 53.

The opposite side of the inner wall of the casing 4 of the leakage sensing device 2 is provided with a second groove 6, the bottom of the second groove 6 is provided with a second spring 61, the second spring 61 is connected with a motion block 62, the motion block 62 is provided with an indicating plate 63, and the indicating plate 63 is provided with a sensing block 64. When no electric leakage occurs, the top end of the indicating plate 63 is flush with the surface of the shell 4, and in the initial position of the movable iron core 53, the movable iron core 53 blocks the moving block 62 to bounce upwards. The mutual inductor 3 is positioned below the first groove 5, and the static iron core 51 is wound with a coil and connected with the mutual inductor 3.

An indicator light module 7 is further arranged inside the casing 4 of the electric leakage sensing device 2, the indicator light module 7 comprises an indicator light 71 and a sensor 72, and the sensor 72 is located opposite to the indicator board 63 and corresponds to the position of the sensing block 64 when the indicator board 63 bounces.

The operation of the leakage sensing apparatus will be described with reference to fig. 2 and 3.

Under the condition that the line and the electrical equipment are normal, the vector sum of the currents of all phases is equal to zero, so that no signal is output from the side winding coil part of the mutual inductor 3, the static iron core 51 has no magnetism, and the movable iron core 53 does not have any displacement. When leakage current appears, the vector sum of each phase of current is not zero, leakage current makes the annular iron core of mutual inductor 3 produce magnetic flux, quiet iron core 51 produces magnetism, thereby make movable iron core 53 overcome the elastic force of first spring 52 and move towards quiet iron core 51 direction, and then make the moving block 62 break away from blockking of movable iron core 53 and upwards move under the elastic action of second spring 61, indicator panel 63 also can upwards move and exceed the casing 4 surface, and simultaneously, inductor 72 of pilot lamp module 7 senses the response piece 64 on the indicator panel 63, pilot lamp 71 glimmers, the suggestion staff takes place the electric leakage condition.

After the staff solves the electric leakage problem, the indicating plate 63 can be manually pressed to move the moving block 62 downwards, the moving iron core 53 returns to the initial position under the elastic action of the first spring 52 after being separated from the blocking of the moving block 62, the moving block 53 is blocked again to bounce upwards, the sensor 71 in the indicating lamp module 7 cannot sense the sensing block 64, and the indicating lamp 71 stops flashing.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims

1. The utility model provides an electric power thing networking is intelligent sensing device of electric leakage type for moulded case circuit breaker, includes moulded case circuit breaker (1) and electric leakage sensing device (2), its characterized in that: the electric leakage sensing device (2) is clamped with the molded case circuit breaker (1);

the electric leakage sensing device (2) comprises a shell (4), a mutual inductor (3) is installed in the shell (4), one end of a first conductor, one end of a second conductor and one end of a third conductor penetrate through the mutual inductor (3) to be connected with the output end of the molded case circuit breaker (1), and the other end of the first conductor, the second conductor and the third conductor are connected with the input end of electric equipment; the magnetic control type magnetic control switch is characterized in that a first groove (5) is formed in one side of the inner wall of the shell (4), a static iron core (51) is fixedly mounted in the first groove (5), a movable iron core (53) is arranged on the side edge of the static iron core (51), a first spring (52) is arranged between the static iron core (51) and the movable iron core (53), a second groove (6) is formed in the other side of the inner wall of the shell (4), a second spring (61) is mounted at the bottom of the second groove (6), a moving block (62) is connected onto the second spring (61), an indicating plate (63) is arranged on the moving block (62), and the top end of the indicating plate (63) is flush with the surface; the mutual inductor (3) is located below the first groove (5), and the static iron core (51) is wound with a coil and connected with the mutual inductor (3).

2. The intelligent sensing device for the leakage type of the electric power internet of things molded case circuit breaker according to claim 1, wherein: and an induction block (64) is arranged on the indicating plate (63).

3. The intelligent sensing device for the leakage type of the electric power internet of things molded case circuit breaker according to claim 1, wherein: the electric leakage sensing device is characterized in that an indicator light module (7) is arranged inside a shell (4) of the electric leakage sensing device (2), the indicator light module (7) comprises an indicator light (71) and an inductor (72), and the inductor (72) is located opposite to an indicator plate (63) and corresponds to the position of an induction block (64) when the indicator plate (63) bounces.