CN217933657U - Moulded case power distribution protection circuit breaker - Google Patents

Abstract

The utility model relates to the field of power distribution protection devices, and discloses a molded case power distribution protection circuit breaker, which comprises a fixing plate, and a wiring board is fixedly connected to the center of the front of the fixing plate, and the center of the front of the wiring board is close to one side edge The position is fixedly connected with the circuit breaker shell, the center of the front of the circuit breaker shell is fixed with a circuit breaker switch, and the center of the front of the wiring board is fixedly connected with the leakage protector at the edge of the other side, and the circuit breaker A liquid crystal screen is fixedly arranged in the middle position near the upper edge of the front of the casing. In the utility model, by installing a leakage protector in the device, it is beneficial to avoid damage to the user caused by the leakage of the circuit breaker, and to improve the safety of the device. The working state of the circuit breaker is read from the computer, and the function key is set on the circuit breaker, which is beneficial for the user to operate the working state of the circuit breaker and set the switching time of the circuit breaker.

Description

A molded case power distribution protection circuit breaker

technical field

The utility model relates to the field of power distribution protection devices, in particular to a molded case power distribution protection circuit breaker.

Background technique

Molded case circuit breakers are also called device circuit breakers. Molded case refers to the use of plastic insulators as the casing of the device to isolate conductors and grounded metal parts. All parts are sealed in plastic casings. Auxiliary contacts point, the undervoltage release and the shunt release are mostly modularized, mainly used for the incoming and outgoing lines of the low-voltage power distribution system, and motor protection, which can realize long-time delay protection, short-time delay protection, overload protection, and instantaneous protection , Short-circuit protection, the rated current of the molded case circuit breaker is from 10 to 800A, which is used to protect the circuit and equipment when the circuit and equipment in the distribution line are overloaded, short-circuited, and under-voltage, and can also be used for the infrequent start of the motor. Provide overload, short circuit, undervoltage protection.

Although the existing molded case circuit breakers can improve the user's control of the circuit, they have the problems of compact structure, difficult maintenance, and manual operation in most cases, which leads to excessive temperature in some use environments, It will cause potential safety hazards. At the same time, manual operation needs to be controlled by specialized operators, which is not very practical. Therefore, those skilled in the art provide a molded case power distribution protection circuit breaker to solve the problems raised in the above background technology .

Utility model content

The purpose of this utility model is to solve the shortcomings in the prior art, and propose a molded case power distribution protection circuit breaker. Compared with the existing circuit breaker, the circuit breaker is equipped with a liquid crystal The user can read the working status of the circuit breaker through the LCD screen, the user can read the current flow and other information passing through the circuit breaker through the LCD screen, and the user can set the opening and closing of the circuit breaker through the function key. closing time, reduce the user's difficulty in operation, and improve the practicability of the circuit breaker. The circuit breaker is equipped with a temperature sensing sheet on its surface. It plays a warning role, and at the same time, it can alarm through the communicator to improve the safety of the circuit breaker.

In order to achieve the above object, the utility model provides the following technical solutions:

A molded case power distribution protection circuit breaker, comprising a fixing plate, a wiring board is fixedly connected to the center of the front of the fixing plate, and a circuit breaker shell is fixedly connected to the center of the front of the wiring board near the edge of one side, and the circuit breaker A circuit breaker switch is fixedly installed at the lower position of the front center of the housing, and a leakage protector is fixedly connected to the front center of the wiring board near the edge of the other side;

The front of the circuit breaker housing is fixed with a liquid crystal screen at the middle position near the upper edge, the front of the circuit breaker housing is fixed with a temperature sensing sheet at the middle position near one side edge, and the front of the circuit breaker housing is near the other side edge. A plurality of function keys are fixedly arranged at equal intervals in the middle position, an alarm light is fixedly arranged in the middle position near the upper edge of the outer surface of one side of the circuit breaker housing, and a fixed connection is fixed at the center of the outer surface of one side of the circuit breaker housing. A loudspeaker, a communicator is fixedly connected in the middle of the outer surface of one side of the circuit breaker shell near the edge of the bottom side;

Through the above technical scheme, by installing a leakage protector in the device, it is beneficial to avoid the damage caused by the leakage of the circuit breaker to the user, and to improve the safety of the device. The working state of the circuit breaker is read from the computer. By setting the function key on the circuit breaker, it is beneficial for the user to operate the working state of the circuit breaker and set the switching time of the circuit breaker. By setting the temperature sensor on the circuit breaker, It is beneficial for the circuit breaker to sense the surrounding temperature. If the temperature is too high, the surrounding personnel can be notified through the alarm lamp and the speaker, and the alarm can be issued through the communicator, so as to improve the safety of the circuit breaker.

Further, the four corners of the front of the fixing plate are threaded with fixing bolts, and the center of the back of the fixing plate is provided with a chute;

Through the above technical solution, it is beneficial for the user to connect and fix the circuit breaker in the distribution box.

Further, a plurality of wiring openings are equally spaced on the upper and lower edges of the front of the wiring board, and the main wiring bolts are threaded inside the wiring openings;

Through the above technical solution, it is beneficial for users to connect the circuit with the circuit breaker.

Further, the front of the wiring board is threaded with two leak-proof terminal bolts near the bottom side edge and near the side edge;

Through the above technical solution, it is beneficial for the user to connect the line to the leakage protector.

Further, a detection button is fixedly arranged in the middle of the upper edge of the front of the earth leakage protector;

Through the above technical solution, it is beneficial for the user to carry out daily maintenance work on the circuit breaker, and it is convenient for the user to find out whether the circuit breaker is working normally, thereby improving the safety of the circuit breaker.

Further, a reset button is fixedly arranged on the front side of the earth leakage protector near the bottom side edge and near the side edge;

Through the above technical solution, it is beneficial to close the switch only after the reset button is reset after the leakage protector works, thereby improving the safety of the circuit breaker.

Further, a nameplate is fixedly arranged on the front side of the circuit breaker housing near the bottom side edge;

Through the above technical solution, it is beneficial for the user to determine various data of the circuit breaker, and the user's understanding of the circuit breaker is improved.

Further, the front side of the circuit breaker housing is fixedly provided with wiring information near the bottom side edge near the other side edge;

Through the above technical solution, it is beneficial to guide the user's wiring work and reduce the difficulty of the user's operation.

The utility model has the following beneficial effects:

1. The utility model proposes a molded case power distribution protection circuit breaker. Compared with the existing circuit breaker, the circuit breaker is provided with a temperature sensing sheet on its surface. During the use of the circuit breaker, the user can use the liquid crystal The temperature of the circuit breaker is observed on the screen. When the temperature is too high, the circuit breaker will turn on the alarm light and the speaker. The alarm light will flash and the speaker will sound to warn the surrounding people. The communicator realizes remote alarm and improves the safety of the circuit breaker.

2. The utility model proposes a molded case power distribution protection circuit breaker. Compared with the existing circuit breaker, the circuit breaker is equipped with a liquid crystal screen and function keys on the casing, and the user can control the circuit breaker through the function keys. The opening and closing time and the function of reading temperature, through this setting method, the user of the circuit breaker can reduce the user's operation difficulty and improve the practicability of the circuit breaker.

3. The utility model proposes a molded case power distribution protection circuit breaker. Compared with the existing circuit breaker, the circuit breaker is equipped with a leakage protector. The leakage protector is equipped with a detection button and a reset key. The leakage protector can In order to prevent the leakage of the circuit breaker from causing harm to the user, the user can also regularly detect the circuit of the circuit breaker through the detection button, so as to further improve the safety of the circuit breaker.

Description of drawings

Fig. 1 is an axonometric schematic diagram of a molded case power distribution protective circuit breaker proposed by the utility model;

Fig. 2 is a schematic front view of a molded case power distribution protection circuit breaker proposed by the utility model;

Fig. 3 is a schematic side view of a molded case power distribution protective circuit breaker proposed by the utility model;

Fig. 4 is a schematic top view of a molded case power distribution protective circuit breaker proposed by the utility model.

illustration:

1. Fixed plate; 2. Fixed bolt; 3. Main wiring bolt; 4. Wiring board; 5. Detection button; 6. Leakage protector; 7. Temperature sensor; 8. Nameplate; 9. Reset key; 11. Circuit breaker shell; 12. Wiring port; 13. LCD screen; 14. Alarm light; 15. Circuit breaker switch; 16. Function key; 17. Wiring information; 18. Communicator; 19. Speaker; 20, chute.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-4, an embodiment of the utility model is provided: a molded case power distribution protection circuit breaker, including a fixed plate 1, and a terminal block 4 is fixedly connected to the center of the front of the fixed plate 1, which is beneficial for the user to connect the circuit Connected into the circuit breaker, the front center of the terminal board 4 is fixedly connected with the circuit breaker case 11 near the edge of one side. The circuit breaker case 11 is a plastic case, which is beneficial to improve the insulation and safety of the circuit breaker. The circuit breaker case 11. A circuit breaker switch 15 is fixedly arranged at the lower position of the front center, which is beneficial to the user to manually control the circuit breaker switch 15. The front center of the wiring board 4 is fixedly connected with a leakage protector 6 at the edge of the other side, which is conducive to Avoid circuit breaker leakage from causing harm to users and improve the safety of circuit breakers;

A liquid crystal screen 13 is fixed at the middle position near the upper edge of the front of the circuit breaker housing 11, which is beneficial for users to read various data when the circuit breaker is working. The temperature sensing sheet 7 is conducive to the real-time temperature detection of the circuit breaker. The front of the circuit breaker housing 11 is fixed with a plurality of function keys 16 at equal intervals in the middle of the edge on the other side, which is conducive to the user's control and adjustment of the circuit breaker. The opening and closing time of the circuit breaker housing 11 is fixed at the middle position near the upper edge of the outer surface of the circuit breaker housing 11, and a speaker 19 is fixedly connected to the center of the outer surface of the circuit breaker housing 11 side. It is beneficial to warn the surrounding personnel when the temperature of the circuit breaker is high. The middle position of the outer surface of the circuit breaker shell 11 near the bottom side edge is fixedly connected with the communicator 18, which is conducive to the operation of the circuit breaker when the temperature of the circuit breaker is high. Call the police.

The four corners of the front of the fixed plate 1 are threaded with fixed bolts 2, and the center of the back of the fixed plate 1 is provided with a chute 20, which is beneficial for the user to fix and connect the circuit breaker. The front of the terminal block 4 is near the upper and lower edges. A plurality of wiring ports 12 are arranged at equal intervals, and the inner threads of the plurality of wiring ports 12 are provided with main terminal bolts 3, which is conducive to improving the stability of the wiring of the circuit breaker and further improving the safety of the circuit breaker. The front side of the terminal block 4 There are two leakage protection terminal bolts 10 threaded on the side edge at the bottom side edge, which is beneficial for users to connect the leakage protector 6 into the line. The front of the leakage protector 6 is fixed at the middle position near the upper edge. The detection button 5 and the front side of the leakage protector 6 are fixedly provided with a reset button 9 near the edge of the bottom side, which is conducive to the daily maintenance of the circuit breaker by the user and improves the safety of the circuit breaker. The front side of the circuit breaker housing 11 A nameplate 8 is fixedly arranged on one edge near the bottom edge, and a wiring information 17 is fixedly arranged on the front of the circuit breaker case 11 near the bottom edge on the other side edge, which is beneficial to mark various data of the circuit breaker , reduce the user's wiring difficulty, and improve the user's understanding of the circuit breaker.

Working principle: When the circuit breaker is in use, the circuit breaker is fixed at the use position through the fixing plate 1, and the circuit breaker is connected to the circuit through the wiring port 12 and the leakage protection wiring bolt 10. The user can use the function key 16 to The opening and closing time and temperature control of the circuit breaker are set. When the temperature inside the circuit breaker is too high, the temperature sensing sheet 7 of the circuit breaker will remind the surrounding personnel through the alarm lamp 14 and the speaker 19, and an alarm will be issued through the communicator 18 , the user can also directly control the opening and closing state of the circuit breaker through the circuit breaker switch 15 .

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (8)

1. A molded case power distribution protection circuit breaker, comprising a fixed plate (1), characterized in that: the center of the front of the fixed plate (1) is fixedly connected with a terminal block (4), and the front of the terminal plate (4) The center is fixedly connected with a circuit breaker case (11) near the edge of one side, and a circuit breaker switch (15) is fixedly arranged at the lower position of the center of the front of the circuit breaker case (11), and the center of the front of the terminal board (4) A leakage protector (6) is fixedly connected to the edge on the other side; The front of the circuit breaker housing (11) is fixed with a liquid crystal screen (13) at the middle position near the upper side edge, and the front side of the circuit breaker housing (11) is fixed with a temperature sensing sheet (7) at the middle position near the side edge , the front of the circuit breaker case (11) near the middle of the edge on the other side is fixedly provided with a plurality of function keys (16) at equal intervals, the outer surface of one side of the circuit breaker case (11) is in the middle A warning light (14) is fixed at a fixed position, and a loudspeaker (19) is fixedly connected to the center of the outer surface of one side of the circuit breaker housing (11). The position is fixedly connected with a communicator (18). 2. A molded case power distribution protection circuit breaker according to claim 1, characterized in that: the four corners of the front of the fixing plate (1) are threaded with fixing bolts (2), and the fixing plate (1) A chute (20) is provided at the center of the back. 3. A molded case power distribution protective circuit breaker according to claim 1, characterized in that: the front of the terminal board (4) is provided with a plurality of terminal openings ( 12), a plurality of wiring ports (12) are threaded with main wiring bolts (3). 4. A molded case power distribution protection circuit breaker according to claim 1, characterized in that: the front side of the terminal board (4) is threaded with two leak-proof terminal bolts near the edge of the bottom side (10). 5. A molded case power distribution protection circuit breaker according to claim 1, characterized in that: a detection button (5) is fixedly installed in the middle of the upper edge of the front of the leakage protector (6). 6. A molded case power distribution protection circuit breaker according to claim 1, characterized in that: the leakage protector (6) is fixedly provided with a reset button (9) on the side edge near the bottom edge . 7. A molded case power distribution protective circuit breaker according to claim 1, characterized in that: said circuit breaker housing (11) is fixedly provided with a nameplate (8) at a position close to one side edge and bottom side edge. 8. A molded case power distribution protection circuit breaker according to claim 1, characterized in that the front side of the circuit breaker housing (11) is fixedly provided with wiring information (17 ).

Images