CN215869204U

CN215869204U - Circuit breaker

Info

Publication number: CN215869204U
Application number: CN202121864206.0U
Authority: CN
Inventors: 王强; 郭德鑫; 周月浩; 李磊鹏; 毛显饶
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-18
Anticipated expiration: 2031-08-11

Abstract

The utility model provides a circuit breaker, includes the shell be equipped with an at least looks circuit breaker utmost point in the shell, be equipped with first binding post and second binding post respectively at the both ends of every circuit breaker utmost point, be equipped with the mounting groove in the one end that circuit breaker utmost point is close to first binding post the instruction module is equipped with in the mounting groove, instruction module includes shell, instruction unit and wiring end, shell and mounting groove cooperation make wiring end and first binding post's wiring board be connected or break off through plug instruction module, and instruction unit acquires and shows the voltage condition of circuit breaker utmost point. According to the circuit breaker, the circuit breaker is provided with the indicating module for indicating voltage, so that the circuit breaker has a voltage indicating function, meanwhile, the indicating module is arranged on one side of the first wiring terminal in a plug-in connection mode, and the circuit breaker is simple and convenient to assemble and wire.

Description

Circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus, in particular to a circuit breaker.

Background

A circuit breaker is a common switching element used in an electric power system to turn on and off an electric circuit and automatically break the electric circuit when an overcurrent or leakage fault occurs in the electric circuit. In the existing molded case circuit breaker, an indication module for indicating voltage is not provided usually, so that a user cannot obtain the condition of each phase voltage of the circuit breaker.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a circuit breaker which is simple in structure and has a voltage indication function.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit breaker, includes the shell be equipped with an at least looks circuit breaker utmost point in the shell, be equipped with first binding post and second binding post respectively at the both ends of every circuit breaker utmost point, still including the indicating module who is used for showing the voltage condition of the circuit breaker utmost point, indicating module includes the shell and sets up indicating element and wiring end in the shell, and the wiring end is connected with indicating element electricity, and one end stretches out outside the shell, the one end that is close to first binding post at the circuit breaker utmost point is equipped with the mounting groove, the cartridge of indicating module is in the mounting groove, and the wiring end is connected with first binding post.

Further, the indicating module is still including setting up the circuit board in the casing, and indicating unit and wiring end all set up on the circuit board the lower lateral wall of casing is equipped with at least one perforation, and the wiring end is worn out the perforation and is used for being connected with first binding post the last lateral wall of casing is equipped with the pilot hole, learns the instruction state of indicating unit through the pilot hole.

Furthermore, the wiring end is a thimble arranged on the edge of the lower side of the circuit board, and the thimble is directly and vertically connected with a wiring board of the first wiring terminal.

Further, the casing includes base and the upper cover that closes each other be equipped with spacing complex limit structure between base and the circuit board.

Furthermore, the upper part of the outer side of the shell is convexly provided with a connecting part, and the connecting part is provided with a screw hole for fixing the indicating module on the shell.

Furthermore, first binding post is as the terminal that goes out the line of load side, indicating module can also be used for instructing whether first binding post is electrified.

Furthermore, a plurality of circuit breaker poles are arranged in the shell in parallel, and the indicating module is provided with a plurality of wiring ends corresponding to the plurality of circuit breaker poles; the indicating unit comprises a plurality of indicating lamps, and each indicating lamp correspondingly indicates the voltage condition of one breaker pole.

Furthermore, a wire holder is arranged on the circuit board, and the thimble is elastically connected with the wire holder.

Furthermore, the mounting groove is of a groove structure formed by sinking one side of the shell close to the first wiring terminal, a communication hole is formed in the side wall of the mounting groove, and the wiring board of the first wiring terminal enters the mounting groove through the communication hole and is arranged along the inner side of the bottom of the mounting groove; or, the bottom of mounting groove is equipped with the intercommunicating pore, and first binding post's wiring board sets up along the tank bottom outside of mounting groove, and the wiring end of instruction module passes the perforation of casing, the intercommunicating pore of mounting groove in proper order and is connected with the wiring board.

Furthermore, the mounting groove is covered by a flip cover, and a transparent display area is arranged on the flip cover, or the flip cover is made of a transparent material.

Furthermore, a Bluetooth communication module is also arranged in the indication module.

According to the circuit breaker, the mounting groove is formed in one end of the circuit breaker, the indicating module used for indicating the voltage of the circuit breaker can be arranged in the mounting groove according to needs, so that the circuit breaker has a voltage indicating function, meanwhile, the indicating module is arranged on one side of the first wiring terminal in a plug-in connection mode, and the circuit breaker is simple and convenient to assemble and wire.

In addition, a plurality of circuit breaker poles share one indication module, so that the cost is reduced, and the assembly is facilitated.

In addition, the shell is provided with the connecting part, and the indicating module is fixed through the fixing screw after being inserted in place, so that the matching stability of the indicating module and the first wiring terminal is ensured.

In addition, the mounting groove of the shell is covered by a flip cover, so that the shell of the circuit breaker keeps flat.

Drawings

Fig. 1 is a schematic structural view of a circuit breaker according to the present invention;

fig. 2 is a schematic diagram of the mating of an indicator block with the terminal block of a first terminal in a circuit breaker of the present invention;

fig. 3 is an exploded view of an indicator module in a circuit breaker of the present invention.

Detailed Description

The following describes a circuit breaker according to an embodiment of the present invention with reference to fig. 1 to 3. A circuit breaker of the present invention is not limited to the description of the following embodiments.

The utility model provides a circuit breaker, includes shell 1 be equipped with an at least looks circuit breaker utmost point in shell 1, be equipped with first binding post 2 and second binding post respectively at the both ends of every circuit breaker utmost point, be equipped with the mounting groove in the one end that the circuit breaker utmost point is close to first binding post 2 the installation inslot is equipped with indication module 3 that is used for showing the voltage condition of circuit breaker utmost point, indication module 3 includes the shell and sets up indicating unit and wiring end in the shell, and the wiring end is connected with the indicating unit electricity, and one end stretches out outside the shell, 3 cartridge of indication module are in the mounting groove, and the wiring end is connected with first binding post 2, shell and mounting groove cooperation make wiring end and first binding post 2's wiring board 21 be connected or break off through plug indication module 3, and indication unit acquires and shows the voltage condition of circuit breaker utmost point.

According to the circuit breaker, the mounting groove is formed in one end of the circuit breaker, the indicating module 3 used for indicating the voltage of the circuit breaker can be arranged in the mounting groove as required, so that the circuit breaker has a voltage indicating function, meanwhile, the indicating module 3 is arranged on one side of the first wiring terminal 2 in a plug-in connection mode, and the circuit breaker is simple and convenient to assemble and wire.

A detailed embodiment is provided with reference to fig. 1-3, the circuit breaker includes a housing 1, at least one circuit breaker pole is provided in the housing 1, in this embodiment, three circuit breaker poles are provided side by side in the housing 1, both ends of each circuit breaker pole are provided with a first connection terminal 2 and a second connection terminal respectively, an operating mechanism, a contact mechanism and an arc extinguish chamber are provided between the first connection terminal 2 and the second connection terminal, the contact mechanism is electrically connected with the first connection terminal 2 and the second connection terminal respectively, the operating mechanism opens and closes a switch by driving the contact mechanism, the on-off control of a main circuit in the circuit breaker poles is realized, and one side of the arc extinguish chamber, which is located at the contact mechanism, is used for extinguishing an arc generated when the contact mechanism is opened and closed.

The circuit breaker pole is also provided with a handle mechanism, the handle mechanism is in linkage connection with the operating mechanism and is used for manually operating the opening and closing of the circuit breaker pole, and in the figure 1, the handle mechanism penetrates out of the shell 1 and is positioned in the center of the upper part of the circuit breaker; the circuit breaker pole can be further provided with a driving module, and the driving module is in linkage connection with the operating mechanism to enable the circuit breaker pole to achieve automatic opening and closing.

Further, the circuit breaker pole can be further internally provided with a protection mechanism and a current transformer, the protection mechanism comprises an overload protection mechanism and/or a short-circuit protection mechanism, when the circuit breaker pole has overload or short-circuit fault, the overload protection mechanism or the short-circuit protection mechanism triggers an operating mechanism to trip so as to protect the circuit breaker, and the current transformer is connected with a main line of the circuit breaker pole and is used for acquiring a current signal.

The shell is close to the one end of every circuit breaker utmost point and is equipped with the mounting groove it has instruction module 3 to peg graft in the mounting groove, instruction module 3 includes casing, instruction unit and wiring end, and wherein, casing and mounting groove are pegged graft the cooperation, and preferred set up grafting guide structure and/or grafting limit structure between casing and mounting groove to guarantee instruction module 3's grafting stability, the one end setting of instruction unit and wiring end is in the casing, and the casing is worn out to the other end, indicates module 3 through the plug and can make wiring end and first binding post 2 be connected or break off, and the instruction unit acquires and instructs the voltage of circuit breaker utmost point according to connected first binding post 2.

In this embodiment, the indication module 3 includes the casing and sets up the circuit board 33 in the casing, and indication unit and wiring end all set up on the circuit board 33, the casing includes base 31 and upper cover 32 that each other approximately closes, base 31 and upper cover 32 approximately close through mutually supporting buckle 38 and draw-in groove 37, and this embodiment sets up draw-in groove 37 on base 31, is equipped with buckle 38 with draw-in groove 37 complex at upper cover 32 edge, and of course upper cover 32 and base 31 also can adopt other connected mode. A limit structure for limiting and matching is arranged between the circuit board 33 and the base 31, in this embodiment, a plurality of limit grooves are arranged on the side wall of the base 31, and a plurality of limit protrusions matched with the limit grooves are arranged on the edge of the circuit board 33, so that the circuit board 33 can be stably assembled in the shell; at least one through hole is formed in the lower side wall of the base 31, an ejector pin 34 serving as a terminal is arranged at the lower edge of the circuit board 33, the ejector pin 34 penetrates through the through hole to be connected with the wiring board 21 of the first terminal, preferably, the ejector pin 34 is directly and vertically connected with the wiring board 21, and the arrangement direction of the ejector pin 34 is consistent with the plugging and unplugging direction of the indicating module 3, so that assembly and wiring are facilitated; an indication hole 311 is formed in the upper side wall of the base 31, the indication hole 311 is opposite to the indication unit of the circuit board 33, and the indication state of the indication unit can be obtained from the outside through the indication hole 311. The indicating unit includes pilot lamp 35, pilot lamp 35 indicates the voltage condition of the circuit breaker utmost point that connects through two kinds of states, the light and shade degree of normally bright, normally going out or different colours, of course be equipped with the controller on the circuit board 33, by the controller is also suitable for according to voltage condition control pilot lamp 35 equally, in addition, indicating unit can also show the voltage value through setting up digital display or communication module, and wherein communication module can be connected with outside display device in order to inquire the voltage value. Preferably, a wire holder is arranged on the circuit board 33, the thimble 34 is elastically connected with the wire holder, an elastic element is arranged between the thimble 34 and the wire holder, so that the thimble 34 is reliably contacted with the wiring board 21 and the problem of mismatching caused by machining errors is avoided, and the thimble 34 can be electrically connected with the circuit board 33 through a wire or the elastic element.

A plurality of circuit breaker poles are arranged in parallel in the shell 1, the indicating module 3 is provided with a plurality of wiring ends corresponding to the plurality of circuit breaker poles, and the indicating unit is provided with an indicating lamp 35 corresponding to the plurality of circuit breaker poles. In this embodiment, three breaker poles arranged in parallel share the same circuit board 33, three ejector pins 34 are arranged on the lower side edge of the circuit board 33, three parallel indicator lamps 35 are arranged on the upper portion of the circuit board 33, correspondingly, three indicator holes 311 are arranged on the upper portion of the base, and each indicator lamp 35 correspondingly indicates the voltage condition of one breaker pole.

In addition, in this embodiment, a bluetooth communication module is further disposed in the indication module 3, and the bluetooth communication module is disposed on the circuit board 33 or disposed on a separate circuit board. Preferably, instruction module 3 can also possess the function of instructing bluetooth and communication protocol, instruction module 3 includes the communication line board of being connected with circuit board 33, is equipped with bluetooth communication module on the communication line board, and is preferential still be equipped with digital display LCD screen or display lamp on the communication line board, and thimble 34 of circuit board 33 is used for getting the electricity and voltage signal gathers usefulness, and circuit board 33 gets the electricity and gives the power supply of communication line board and give bluetooth communication module with voltage signal, and bluetooth communication module is used for being connected with the host computer communication, and the voltage signal to host computer conveying circuit breaker is by digital display LCD screen or display lamp scintillation in order to instruct bluetooth communication module's connection and/or communication state. Of course, the indication module 3 may also be a functional module with other functions, and the functional module is also connected by plugging, so as to realize convenient replacement between the indication module 3 and the functional module.

The indicating module 3 has an electrified indicating function, the indicating module 3 has an indicating function for indicating whether a load side of a circuit breaker is electrified, in this embodiment, the first wiring terminal 2 is used as an outgoing line terminal of the load side, the indicating module 3 includes a circuit board 33 and an indicating lamp 35 arranged on the circuit board 33, when the load side of the circuit breaker is connected with an incompatible load, the indicating device 3 can also indicate a switching-on/off state of the circuit breaker, that is, when the circuit breaker is switched off, the first wiring terminal 2 of the circuit breaker is not electrified, the indicating lamp 35 is extinguished, when the circuit breaker is switched on, the first wiring terminal 2 of the circuit breaker is electrified, and the indicating lamp 35 is normally lighted; when the load side of the circuit breaker is connected with the capacitive load, after the circuit breaker is switched on, the first wiring terminal 2 is electrified, the indicator lamp 35 is normally on, when the circuit breaker is just switched off, the indicator lamp 35 is kept normally on within a certain time through discharge of the capacitive load, the circuit breaker cannot be operated at this time, at one end time after the circuit breaker is switched off, the capacitive load is discharged completely, the first wiring terminal 2 is not electrified, and the indicator lamp 35 is extinguished, therefore, when the load side of the circuit breaker is connected with the capacitive load, the indicator lamp 35 is extinguished to indicate that the circuit breaker is switched off, the first wiring terminal 2 is not electrified, the indicator lamp 35 is in a luminous state, and the first wiring terminal 2 is electrified, and certainly, when the indicator lamp 35 is in the luminous state for a long time, the circuit breaker can also be indicated to be in a switched on state.

A mounting groove for fitting the indicating module 3 of the above-described embodiment is provided at one end of the housing 1, the mounting groove provides an assembly space for the indicating module 3, ensuring the flatness of the housing 1, preferably the mounting groove is located at a side close to the first connecting terminal 2, the mounting groove is recessed from the housing 1 close to the first terminal 2 to form a groove structure, the groove structure preferably has a groove bottom wall, which is favorable for separating the mounting groove from the space in the housing 1, a communication hole is arranged at the joint of the side wall of the mounting groove and the bottom wall of the groove, a wiring board 21 of the first wiring terminal 2 passes through the communication hole and passes through the mounting groove along the inner side of the bottom wall of the groove, a wiring terminal of the indicating module 3 passes through the shell to be connected with the wiring board 21, when the mounting groove is not provided with the bottom wall of the groove, a communication hole is arranged on the side wall of the mounting groove, so that the wiring board 21 penetrating into the mounting groove is arranged along the bottom of the mounting groove as much as possible; alternatively, the wiring board 21 is disposed along the outside of the tank bottom wall, a plurality of communication holes are provided on the tank bottom wall, and the terminal passes through the housing and the communication holes in sequence to be connected to the wiring board 21.

In this embodiment, the mounting grooves that communicate with each other are formed in one side, close to the first connection terminal 2, of all the breaker poles, so that all the breaker poles share one indication module 3, of course, all the breaker poles are provided with the mounting grooves that are independent from each other, and it is also applicable that one independent indication module 3 is assembled in each mounting groove, but the assembly process is increased by assembling a plurality of indication modules 3, and the cost is increased.

Preferably, the mounting groove is covered by a flip 11, the flip 11 is provided with a transparent display area, the transparent display area corresponds to the indicating hole 311 of the housing, and of course, the flip 11 may also be made of a transparent material, so as to seal the indicating module 3 in the mounting groove, further ensuring the smoothness of the exterior of the circuit breaker, and simultaneously providing protection for the indicating module 3 without interfering with the indicating function thereof.

Further, the outside upper portion protrusion of casing is equipped with connecting portion 36 be equipped with the screw hole on connecting portion 36 the screw hole internal fixation set screw is used for fixing instruction module 3 on shell 1, and this embodiment connecting portion 36 sets up on base 31, can directly choose for use as the connecting lug plate shown in fig. 2, 3, the connecting lug plate sets up in the both sides outside of base 31.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. The utility model provides a circuit breaker, includes shell (1) be equipped with an at least looks circuit breaker utmost point in shell (1), be equipped with first binding post (2) and second binding post respectively at the both ends of every circuit breaker utmost point, its characterized in that: still including indicating module (3) that is used for showing the voltage condition of circuit breaker utmost point, indicating module (3) include the shell and set up indicating element and wiring end in the shell, and the wiring end is connected with indicating element electricity, and one end stretches out outside the shell, be equipped with the mounting groove in the circuit breaker utmost point one end that is close to first binding post (2), indicating module (3) cartridge is in the mounting groove, and the wiring end is connected with first binding post (2).

2. A circuit breaker according to claim 1, wherein: indicating module (3) are still including setting up circuit board (33) in the casing, and indicating unit and wiring end all set up on circuit board (33) the lower lateral wall of casing is equipped with at least one and perforates, and the wiring end is worn out to perforate and is used for being connected with first binding post (2) the last lateral wall of casing is equipped with indication hole (311), learns the instruction state of indicating unit through indicating hole (311).

3. A circuit breaker according to claim 2, wherein: the wiring end is a thimble (34) arranged on the lower side edge of the circuit board (33), and the thimble (34) is directly vertically connected with the wiring board (21) of the first wiring terminal (2).

4. A circuit breaker according to claim 2, wherein: the shell comprises a base (31) and an upper cover (32) which are mutually covered, and a limit structure in limit fit is arranged between the base (31) and the circuit board (33); the upper portion of the outer side of the shell is convexly provided with a connecting portion (36), the connecting portion (36) is provided with a screw hole, and the screw hole is used for fixing the indicating module (3) on the shell (1).

5. A circuit breaker according to claim 1, wherein: first binding post (2) are as the terminal that goes out the line of load side, indicating module (3) can also be used for instructing whether first binding post (2) are electrified.

6. A circuit breaker according to claim 1, wherein: a plurality of circuit breaker poles are arranged in the shell (1) in parallel, and the indicating module (3) is provided with a plurality of wiring ends corresponding to the plurality of circuit breaker poles; the indicating unit comprises a plurality of indicating lamps (35), and each indicating lamp (35) correspondingly indicates the voltage condition of one breaker pole.

7. A circuit breaker according to claim 3, wherein: the circuit board (33) is provided with a wire holder, and the thimble (34) is elastically connected with the wire holder.

8. A circuit breaker according to any one of claims 1 to 7, wherein: the mounting groove is of a groove structure formed by sinking one side, close to the first wiring terminal (2), of the shell (1), a communication hole is formed in the side wall of the mounting groove, and a wiring board (21) of the first wiring terminal (2) enters the mounting groove through the communication hole and is arranged along the inner side of the groove bottom of the mounting groove; or, the bottom of the mounting groove is provided with a communicating hole, a wiring board (21) of the first wiring terminal (2) is arranged along the outer side of the groove bottom of the mounting groove, and a wiring end of the indicating module (3) sequentially penetrates through the through hole of the shell and the communicating hole of the mounting groove to be connected with the wiring board (21).

9. A circuit breaker according to claim 1, wherein: the mounting groove is covered by a flip cover (11), a transparent display area is arranged on the flip cover (11), or the flip cover (11) is made of transparent materials.

10. A circuit breaker according to claim 1, wherein: and a Bluetooth communication module is also arranged in the indication module (3).