CN214043569U

CN214043569U - Plastic case circuit breaker

Info

Publication number: CN214043569U
Application number: CN202120075881.9U
Authority: CN
Inventors: 马珂
Original assignee: Beijing Fangheng Electric Power Technology Co ltd
Current assignee: Beijing Fangheng Electric Power Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-24
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to a circuit breaker technical field just discloses moulded case circuit breaker, including the circuit breaker body, the top and the bottom of circuit breaker body respectively are provided with three wiring groove, every the left and right sides in wiring groove all is formed with protruding district, every the top in protruding district all is provided with the inserting groove, and equal movable insertion installs the plugboard in each inserting groove that is arranged in circuit breaker body top and bottom. This moulded case circuit breaker, because the plugboard highly higher, can carry out insulating operation between each wiring department in the wiring groove, make the electrically conductive position on each wire separate completely, can not produce interference each other, the insulation board can hide each wiring groove completely, thereby external dust and foreign matter hardly enter into the wiring department in the wiring groove, can not cause the short circuit consequently, and the human body also can not be when carrying out other operations the mistake and touch the connector lug and cause the electric shock, personal safety when improving the operation.

Description

Plastic case circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is moulded case circuit breaker.

Background

The molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting. Plastic housing refers to the use of plastic insulators as the outer housing of the device to isolate the conductors from each other and from the grounded metal parts. The molded case circuit breaker is also called a device type circuit breaker, all parts are sealed in a plastic shell, and an auxiliary contact, an undervoltage release, a shunt release and the like are modularized. Because the structure is very compact, the molded case circuit breaker can not be overhauled basically. The manual operation is mostly adopted, and the high-capacity electric clutch can be selected. Due to the application of the electronic overcurrent release, the molded case circuit breaker can be divided into a type A and a type B, the type B has good three-section protection characteristics, but due to price factors, the market share of the type A products adopting the thermomagnetic release is higher. The plastic shell circuit breaker is characterized in that a contact, an arc extinguish chamber, a release, an operating mechanism and the like are all arranged in a plastic shell, maintenance is generally not considered, the plastic shell circuit breaker is suitable for being used as a protection switch of a branch circuit, an overcurrent release has two types of thermomagnetic type and electronic type, the general thermomagnetic type plastic shell 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 plastic shell circuit breaker has four protection functions of overload long delay, short circuit short delay, short circuit instant and grounding fault.

To current moulded case circuit breaker, when accomplishing the wiring operation, with the junction of wire all directly expose externally, make external dust pile up in the junction, perhaps other foreign matters contact the junction, and lead to trouble such as circuit short circuit, the distance between each connecting wire is nearer simultaneously, does not accomplish to highly insulating between each connecting wire, produces the interference easily, causes dangerous the increase.

SUMMERY OF THE UTILITY MODEL

The utility model is not enough to prior art, the utility model provides a moulded case circuit breaker, it can shelter from wiring department to possess, prevent outside dust or foreign matter contact, improve the security of circuit, simultaneously can increase insulating operation between each wiring department, avoid producing the advantage of interference between each connecting wire, current moulded case circuit breaker has been solved, when accomplishing wiring operation, all directly expose externally with the junction of wire, make external dust pile up in wiring department easily, perhaps other foreign matters contact wiring department, and lead to trouble such as circuit short circuit, distance between each connecting wire is nearer simultaneously, accomplish highly insulating between each connecting wire, produce the interference easily, cause the problem of dangerous increase.

The utility model provides a following technical scheme: the molded case circuit breaker comprises a circuit breaker body, wherein a handle is arranged on the front side of the circuit breaker body, three wiring grooves are respectively arranged on the top and the bottom of the circuit breaker body, wires are fixedly connected in the wiring grooves through wiring screws, protruding areas are respectively formed on the left side and the right side of each wiring groove, an inserting groove is respectively arranged on the top of each protruding area, the inserting grooves penetrate through the front side and the back side of each protruding area, inserting plates are movably inserted and installed in the inserting grooves on the top and the bottom of the circuit breaker body, the shape of each inserting plate is the same as that of each inserting groove, the height of the top surface of each inserting plate is larger than that of the top surface of each protruding area, insulating plates are fixedly connected on the front sides of the inserting plates on the top of the circuit breaker body and the front sides of the inserting plates on the bottom of the circuit breaker body, and the longitudinal length of each insulating plate is larger than that of each inserting plate, and the insulation board can completely shield each wiring slot.

Preferably, the rubber pad is fixedly installed on the inner wall of the insertion groove, and the insertion plate is movably inserted into the rubber pad and is tightly pressed and connected with the inner wall of the rubber pad.

Preferably, the longitudinal sections of the inserting groove and the rubber pad are in an inverted T shape.

Preferably, the front surface of the circuit breaker body is provided with a plurality of reflective strips.

Preferably, the front surface of the insulating plate is fixedly provided with an auxiliary handle, and the auxiliary handle is positioned on the central line of the front surface of the insulating plate.

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

1. this moulded case circuit breaker, through insert the installation plugboard in each jack slot, because the height of plugboard is higher, can carry out insulating operation between each wiring department in the wiring slot, make the electrically conductive position on each wire separated totally, can not produce the interference each other, improve this outage ware's work security nature.

2. This moulded case circuit breaker, through the insulation board of the positive installation at the plugboard, the insulation board can hide each wiring groove completely to external dust and foreign matter hardly enter into the wiring department in the wiring groove, can not consequently cause the short circuit, and the human body can not also miss the connector lug and cause the electric shock when carrying out other operations in addition, the personal safety when improving the operation.

3. This moulded case circuit breaker sets up a plurality of reflection of light strips through the front at the circuit breaker body, when site environment light is not enough, can remind this circuit breaker position of staff through reflection of light strip to can prevent that its mistake from touching the handle, the light of reflection of light strip reflection can improve the convenience of operation.

Drawings

FIG. 1 is a schematic view of the present invention with the insulating plate and the plugboard removed;

FIG. 2 is a schematic view of the structure of the present invention in front view;

FIG. 3 is a schematic rear view of the insulating board and the inserting board of the present invention;

fig. 4 is a left side view structure diagram of the insulating plate and the inserting plate of the present invention.

In the figure: 1. a circuit breaker body; 2. a handle; 3. a light-reflecting strip; 4. a wiring slot; 5. a binding screw; 6. a raised region; 7. inserting grooves; 8. a rubber pad; 9. an auxiliary handle; 10. an insulating plate; 11. a plugboard.

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. 1-4, a molded case circuit breaker includes a circuit breaker body 1, a handle 2 is disposed on a front surface of the circuit breaker body 1, a plurality of reflective strips 3 are disposed on the front surface of the circuit breaker body 1, when light is insufficient in a field environment, a worker can be reminded of a position of the circuit breaker by the reflective strips 3 and can be prevented from touching the handle 2 by mistake, the light reflected by the reflective strips 3 can improve convenience of operation, three wiring grooves 4 are disposed on a top and a bottom of the circuit breaker body 1, a wire is fixedly connected in the wiring grooves 4 by a wiring screw 5, protruding regions 6 are formed on left and right sides of each wiring groove 4, an insertion groove 7 is disposed on a top of each protruding region 6, the insertion groove 7 penetrates through the front and back of the protruding region 6, and an insertion plate 11 is movably inserted into each insertion groove 7 disposed on the top and bottom of the circuit breaker body 1, the shape of the inserting plate 11 is the same as that of the inserting groove 7, the rubber gasket 8 is fixedly arranged on the inner wall of the inserting groove 7, the inserting plate 11 is movably inserted into the rubber gasket 8 and is tightly connected with the inner wall of the rubber gasket 8, the firmness of the inserting plate 11 in the rubber gasket 8 can be ensured through the tight connection of the rubber gasket 8 and the inserting plate 11, the sliding condition can not occur, the longitudinal sections of the inserting groove 7 and the rubber gasket 8 are inverted T-shaped, the contact area between the rubber gasket 8 and the inserting plate 11 can be increased through the inverted T-shaped design, the better limiting effect on the inserting plate 11 is realized, the firmness of the connection of the inserting plate 11 can be more fully ensured, the height of the top surface of the inserting plate 11 is larger than that of the top surface of the protruding area 6, the inserting and installing of the inserting plate 11 in each inserting groove 7 is realized, because the height of the inserting plate 11 is higher, the insulating operation can be carried out between each wiring position in the wiring groove 4, the front of each plug board 11 positioned at the top of the breaker body 1 and the front of each plug board 11 positioned at the bottom of the breaker body 1 are fixedly connected with an insulating board 10, the longitudinal length of the insulating board 10 is greater than that of the plug board 11, each wiring slot 4 can be completely shielded by the insulating board 10 arranged on the front of the plug board 11, so that external dust and foreign matters are difficult to enter the wiring position in the wiring slot 4, short circuit cannot be caused due to the fact that the external dust and the foreign matters cannot enter the wiring position in the wiring slot 4, a human body cannot touch a connector lug by mistake during other operations to cause electric shock, the personal safety during the operation is improved, and the front of the insulating board 10 is fixedly provided with an auxiliary handle 9, the auxiliary handle 9 is positioned on the central line of the front surface of the insulating plate 10, and the insulating plate 10 and the plug board 11 can be conveniently taken down from the circuit breaker by taking the auxiliary handle 9 as a stress point.

The working principle is as follows: when the wiring board is used, the wiring ends of all wires are firstly installed in the wiring groove 4 through the wiring screws 5, because the wiring ends of the wires are provided with a section of exposed conductive parts, if the wiring ends of all the wires are not insulated and isolated, circuit interference is easy to cause, the plugging plates 11 on the insulating boards 10 are inserted into all the rubber pads 8 and are tightly pressed and connected with the rubber pads 8, because the plugging plates 11 are higher in height, insulation operation can be carried out between all the wiring positions in the wiring groove 4, so that the conductive parts on all the wires are completely isolated and do not interfere with each other, the firmness of the plugging plates 11 in the rubber pads 8 can be ensured through the tight connection with the rubber pads 8, the sliding condition can not occur, when all the wires are positioned in the wiring groove 4, the front surface of each wire still directly contacts with the outside, and all the wiring grooves 4 can be completely covered through the insulating boards 10, thereby the wiring department in wiring groove 4 is hardly entered into to external dust and foreign matter, can not cause the short circuit consequently, and the human body can not touch the connector lug and cause the electric shock by mistake when carrying out other operations in addition, when site environment light is not enough, can remind this circuit breaker position of staff through reflection of light strip 3 to can prevent that its mistake from touching handle 2, the light of reflection of light strip 3 reflection can improve the convenience of operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

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. Moulded case circuit breaker, including circuit breaker body (1), circuit breaker body (1) openly is provided with handle (2), the top and the bottom of circuit breaker body (1) respectively are provided with three wiring groove (4), through binding screw (5) fixed connection wire, its characterized in that in wiring groove (4): the left side and the right side of each wiring groove (4) are respectively provided with a convex area (6), the top of each convex area (6) is provided with an inserting groove (7), the plug-in slots (7) penetrate through the front and the back of the raised area (6), plug-in boards (11) are movably inserted and installed in the plug-in slots (7) positioned at the top and the bottom of the breaker body (1), the shape of the plug board (11) is the same as that of the plug groove (7), the height of the top surface of the plug board (11) is greater than that of the top surface of the convex area (6), the front surfaces of the plug boards (11) positioned at the top of the breaker body (1) and the front surfaces of the plug boards (11) positioned at the bottom of the breaker body (1) are fixedly connected with insulating plates (10), the longitudinal length of the insulating plate (10) is greater than that of the plug plate (11), and the insulation plate (10) can completely shield each wiring slot (4).

2. The molded case circuit breaker according to claim 1, wherein: the rubber gasket (8) is fixedly installed on the inner wall of the inserting groove (7), and the inserting plate (11) is movably inserted into the rubber gasket (8) and is tightly pressed and connected with the inner wall of the rubber gasket (8).

3. The molded case circuit breaker according to claim 2, wherein: the longitudinal sections of the inserting groove (7) and the rubber pad (8) are in an inverted T shape.

4. A molded case circuit breaker according to any one of claims 1 to 3, characterized in that: the front of circuit breaker body (1) sets up a plurality of reflection of light strips (3).

5. The molded case circuit breaker according to claim 1, wherein: the front of the insulating plate (10) is fixedly provided with an auxiliary handle (9), and the auxiliary handle (9) is arranged on the central line of the front of the insulating plate (10).