An electronic molded case circuit breaker

Abstract

The utility model discloses an electronic type moulded case circuit breaker, including bottom shell and middle shell and the operating mechanism of installation between bottom shell with middle shell, middle shell includes middle lid and face lid, the bottom of middle lid is equipped with the installation cavity, and is equipped with circuit board in the installation cavity, through the movable connection of face lid with middle lid, to facilitate the disassembly, the installation of circuit board. As a result of setting circuit board at the outside of middle lid, the circuit board is exposed to facilitate the installation and replacement of circuit board when the face lid is taken apart, meanwhile, the installation cavity can accommodate circuit board, and secondly provides a reliable work area for circuit board. In addition, the middle lid is also equipped with the placement area, and the isolating piece is placed in the placement area, so that the air current generated when the arc extinguishing chamber is broken can be blocked by the isolating piece to avoid the air current impact on the face lid.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an electronic molded case circuit breaker. Background Technology

[0002] Intelligent electronic circuit breaker circuit board features: In addition to its multi-functionality, the intelligent circuit board boasts powerful remote control capabilities. Users can remotely control the closing and opening operations of the circuit breaker via mobile applications, remote monitoring systems, or cloud platforms. For example, in large industrial plants or intelligent buildings, managers can remotely operate the circuit breaker from the control center, achieving centralized management and fault isolation of the power system. Intelligent diagnostics is another crucial function. Based on a large amount of collected data, the circuit board utilizes built-in algorithms and artificial intelligence models to perform in-depth analysis of the circuit's operating status. It can not only diagnose common fault types but also predict potential fault risks, such as predicting whether equipment is about to experience an overload fault by analyzing current change trends. This intelligent diagnostic function helps achieve preventative maintenance and reduce the failure rate of the power system. Therefore, the proper functioning of the circuit board is paramount; once damaged, it needs to be replaced quickly and conveniently, hence the introduction of an electronic molded case circuit breaker. Utility Model Content

[0003] The purpose of this invention is to provide an electronic molded case circuit breaker to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electronic molded case circuit breaker, comprising a bottom shell and a middle shell, and an operating mechanism installed between the bottom shell and the middle shell; the middle shell includes a middle cover and a front cover, the bottom of the middle cover is provided with a mounting cavity, and a circuit board is provided in the mounting cavity; the front cover is movably connected to the middle cover to facilitate the disassembly and assembly of the circuit board.

[0005] As a preferred technical solution of this utility model: the middle cover is further provided with a placement area, and an isolation component is placed in the placement area.

[0006] As a preferred technical solution of this utility model: a limiting groove is also provided at the upper end of the back side of the placement area.

[0007] As a preferred technical solution of this utility model, the side of the bottom shell is also provided with ventilation holes.

[0008] As a preferred technical solution of this utility model: the operating mechanism includes a handle, and the handle is provided with an extension rod.

[0009] As a preferred embodiment of this utility model, the extension rod is sleeved on the handle, and the material of the extension rod is the same as that of the handle.

[0010] As a preferred technical solution of this utility model: the cover is further provided with an operating area, and the operating area is closed by a baffle.

[0011] As a preferred technical solution of this utility model: a slot is provided on the lower bottom surface of the mounting cavity, and the cover is adapted to the slot by a provided pin.

[0012] As a preferred technical solution of this utility model: the upper end of the face cover is also provided with a countersunk hole, and the upper end of the face cover is fixed to the middle cover by passing a bolt through the countersunk hole.

[0013] As a preferred technical solution of this utility model: the operating area is further provided with a locking pin, and the upper end of the baffle is further provided with a lock hole corresponding to the position of the locking pin.

[0014] The beneficial effects of this utility model by adopting the above technical solution are: since the circuit board is set outside the middle cover, the circuit board can be exposed by removing the front cover to facilitate the installation and replacement of the circuit board; at the same time, the mounting cavity can accommodate the circuit board and provide a reliable working area for the circuit board. Attached Figure Description

[0015] Figure 1 This is an exploded view of the main structure of this utility model; Figure 2 This is an exploded structural diagram of the shell in this utility model; Figure 3 This is a schematic diagram of the front structure of the cover in this utility model; Figure 4 This is a schematic diagram of the back structure of the cover in this utility model; Figure 5 This is a schematic diagram of the main structure of the faceplate after the baffle of this utility model is closed; Figure 6 This is a schematic diagram of the main structure of the faceplate after the baffle of this utility model is opened; Figure 7 for Figure 6 A magnified view of a portion of point A in the middle; Figure 8 This is a schematic diagram of one side of the disassembled handle and extension rod of this utility model; Figure 9 This is a schematic diagram of the other side of the handle and extension rod after disassembly.

[0016] In the diagram: 1. Bottom shell; 2. Vent hole; 3. Middle shell; 30. Middle cover; 31. Circuit board; 32. Isolator; 33. Top cover; 34. Placement area; 35. Mounting cavity; 36. Slot; 37. Limiting slot; 38. Countersunk hole; 39. Baffle; 310. Pin; 311. Operating area; 312. Locking pin; 313. Locking hole; 4. Operating mechanism; 5. Handle; 6. Extension rod. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0018] Please see Figure 1-9 This utility model provides an embodiment of an electronic molded case circuit breaker, comprising a bottom shell 1 and a middle shell 3, and an operating mechanism 4 installed between the bottom shell 1 and the middle shell 3; the middle shell 3 includes a middle cover 30 and a front cover 33, the bottom of the middle cover 30 is provided with a mounting cavity 35, and a circuit board 31 is provided in the mounting cavity 35; the front cover 33 is movably connected to the middle cover 30 to facilitate the disassembly and assembly of the circuit board 31.

[0019] In summary, since the circuit board is located outside the middle cover 30, the circuit board 31 can be exposed by removing the front cover 33, facilitating its installation and replacement. Meanwhile, the mounting cavity 35 serves two purposes: firstly, it accommodates the circuit board 31, and secondly, it provides a reliable working area for the circuit board 31. Preferably, the circuit board 31 is a knob type, but it can also be a type with a touchscreen.

[0020] In addition to solving the above problems, the middle cover 30 is also provided with a placement area 34, and an isolation member 32 is placed in the placement area 34. Therefore, when the arc-extinguishing chamber is interrupted, the airflow generated can be blocked by the isolation member 32 to avoid the airflow impacting the cover 33. The isolation member 32 is two in number and is symmetrically installed on both sides of the arc-extinguishing chamber.

[0021] Since a limiting groove 37 is provided at the upper end of the back side of the placement area 34, the limiting groove 37 can prevent the contact from continuing to rotate after it comes into contact with the contact, thereby avoiding the problem of the contact failing due to excessive rotation. In addition, except for the contact movement area, the middle cover 30 and the bottom shell 1 are relatively sealed to reduce the amount of gas sprayed into the bottom shell 1.

[0022] Furthermore, since the bottom shell 1 is also provided with a vent 2 on its side, the airflow generated inside the equipment can be discharged outward through the vent 2, which is conducive to the discharge of the test gas.

[0023] To facilitate user operation, the operating mechanism 4 includes a handle 5, which is equipped with an extension rod 6. Because the extension rod 6 is installed on the handle 5, the exposed end of the handle 5 extends outwards, making it easier for the user to push the handle 5. Specifically, the handle 5 has the same length as a conventional handle, and the exposed end of the handle 5 is extended outwards by 10 millimeters via the extension rod 6.

[0024] Furthermore, since the extension rod 6 is fitted onto the handle 5, the installation and replacement of the extension rod 6 and the handle 5 are simple and convenient. Specifically, after the extension rod 6 is fitted onto the handle 5, a bolt is used to pass through the outer end face of the extension rod 6 and connect it to the handle 5, thereby strengthening the connection between the extension rod 6 and the handle 5. The extension rod 6 is made of the same material as the handle 5.

[0025] Based on the above solution, since the cover 33 also has an operation area 311, which is closed by a baffle 39, specifically, the control parts on the circuit board 31, such as control buttons, all pass through the cover 33 and enter the operation area 311. Therefore, the baffle 39 can be used to prevent external objects from colliding with the control buttons on the circuit board 31, thereby reducing the problem of equipment misoperation. Furthermore, the operation area 311 is also provided with a locking pin 312, and the upper end of the baffle 39 is provided with a locking hole 313 corresponding to the position of the locking pin 312. Therefore, when the locking pin 312 passes through the locking hole 313, the upper end of the baffle 39 is locked to the cover 33 by a lock, thus reducing the risk of the circuit board 31 losing external protection due to the baffle 39 automatically opening.

[0026] To facilitate the installation and removal of the face cover 33, a slot 36 is provided on the lower bottom surface of the mounting cavity 35, and the face cover 33 is connected to the slot 36 by a provided pin 310.

[0027] Furthermore, the upper end of the face cover 33 is provided with a countersunk hole 38, and the upper end of the face cover 33 is fixed to the middle cover 30 by passing a bolt through the countersunk hole 38.

[0028] Based on this, when the pin 310 is inserted into the slot 36, it can achieve initial positioning of the face cover 33 and the middle cover 30 before assembly, and position the bottom of the face cover 33. At the same time, when the bolt passes through the countersunk hole 38 and connects with the middle cover 30, the entire face cover 33 can be reliably fixed on the middle cover 30.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An electronic molded case circuit breaker, characterized in that: It includes a bottom shell (1) and a middle shell (3) and an operating mechanism (4) installed between the bottom shell (1) and the middle shell (3); The middle shell (3) includes a middle cover (30) and a front cover (33). The bottom of the middle cover (30) is provided with a mounting cavity (35), and a circuit board (31) is provided in the mounting cavity (35). The front cover (33) is movably connected to the middle cover (30) to facilitate the disassembly and assembly of the circuit board (31).

2. The electronic molded case circuit breaker according to claim 1, characterized in that: The middle cover (30) is also provided with a placement area (34), and an isolation piece (32) is placed in the placement area (34).

3. An electronic molded case circuit breaker according to claim 2, characterized in that: The upper part of the back side of the placement area (34) is also provided with a limiting groove (37).

4. An electronic molded case circuit breaker according to claim 1, characterized in that: The bottom shell (1) is also provided with ventilation holes (2) on its side.

5. An electronic molded case circuit breaker according to claim 1, characterized in that: The operating mechanism (4) includes a handle (5) and an extension rod (6) is provided on the handle (5).

6. An electronic molded case circuit breaker according to claim 5, characterized in that: The extension rod (6) is fitted onto the handle (5), and the material of the extension rod (6) is the same as that of the handle (5).

7. An electronic molded case circuit breaker according to any one of claims 1-6, characterized in that: The cover (33) is also provided with an operation area (311), and the operation area (311) is closed by a baffle (39).

8. An electronic molded case circuit breaker according to claim 7, characterized in that: The mounting cavity (35) is provided with a slot (36) on its lower bottom surface, and the cover (33) is adapted to the slot (36) by a provided pin (310).

9. An electronic molded case circuit breaker according to claim 8, characterized in that: The upper end of the face cover (33) is also provided with a countersunk hole (38). After the bolt passes through the countersunk hole (38), the upper end of the face cover (33) is fixed to the middle cover (30).

10. An electronic molded case circuit breaker according to claim 9, characterized in that: The operating area (311) is also provided with a locking pin (312), and the upper end of the baffle (39) is also provided with a lock hole (313) corresponding to the position of the locking pin (312).

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