CN212783286U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker, the casing includes first looks utmost point shell and second looks utmost point shell, has a pair of first binding post that inserts first looks major loop at first looks utmost point shell internally mounted, has the run-on angle that inserts second looks major loop at second looks utmost point shell internally mounted, forms the mounting groove between first looks utmost point shell and second looks utmost point shell, sets up first wiring hole and second wiring hole in the both sides of mounting groove, the first power access point of circuit board is connected with a first binding post through first wiring hole, and the second power access point of circuit board is equipped with and passes through the second wiring hole and stretch into the inside conductive column of second looks utmost point shell, is provided with conductive spring between conductive column and run-on angle, and conductive spring will lead the interior and make run-on angle and lead the formation electricity of arc angle and conductive column and be connected of being fixed in second looks utmost point shell. The utility model discloses a circuit board can directly get the electricity from the circuit breaker two poles of the earth, and the structure of the stable access second phase major loop of circuit board is cooperated conductive spring again, and the assembly is convenient.

Description

Circuit breaker

Technical Field

The utility model relates to a circuit control element, concretely relates to circuit breaker.

Background

The circuit breaker is generally through subassembly such as circuit board, trip coil for additional functions such as realization residual current protection, shunt opening detect, handle and feedback for the signal of telecommunication in the circuit, but these subassemblies need provide the power by the external world and just can normally work, and the space that this kind of circuit breaker structure by external power supply not only occupied is great, and the wire part that power and subassembly are connected is located the casing outside moreover, and the external part of wire is damaged easily, is unfavorable for guaranteeing stable power supply.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a circuit breaker simple structure, that the reliability is high.

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

a circuit breaker comprises a shell and a circuit board, wherein the shell comprises a first phase pole shell and a second phase pole shell which are arranged in parallel, a pair of first connecting terminals connected into a first phase main loop are arranged in the first phase pole shell, an arc ignition angle connected into a second phase main loop is arranged in the second phase shell, a mounting groove for mounting a circuit board is formed between the first phase shell and the second phase shell, a first wiring hole and a second wiring hole are respectively arranged at two sides of the mounting groove, a first power supply access point of the circuit board is connected with a first wiring terminal through the first wiring hole, a second power supply access point of the circuit board is provided with a conductive post which can penetrate through the second wiring hole and extend into the second phase pole shell, and a conductive spring is arranged between the conductive column and the arc striking angle, and the conductive spring fixes the conductive column inside the second phase electrode shell and enables the arc striking angle to be electrically connected with the conductive column.

Furthermore, a connecting bulge is arranged in the second phase shell, and a conductive spring fixes the conductive column and the connecting bulge together on one side of the second wiring hole of the connecting bulge.

Further, electrically conductive spring is the torsional spring, and electrically conductive spring includes first elastic arm, second elastic arm and connects the ring portion between first elastic arm and second elastic arm, and first elastic arm is connected with the run-on angle, and second elastic arm and second looks utmost point shell fixed connection, and the ring portion cover is located and is led electrical pillar and connect protruding on for will lead electrical pillar and connect protruding fixed together.

Further, connect bellied one side and be equipped with the chamfer that does benefit to the inboard of ring portion and paste tightly, connect bellied opposite side and lead one side of electrical pillar and lean on, the opposite side of leading electrical pillar pastes tightly with the inboard of ring portion.

Further, an arc groove used for limiting the conductive column is arranged on the other side of the connecting protrusion, and the depth of the arc groove is smaller than the diameter of the conductive column.

Furthermore, the end face of one end of the conductive column is convexly provided with a connecting part used for being connected with the circuit board, and the connecting part enables one end of the conductive column to form a step structure.

Furthermore, one end of the arc ignition angle is provided with a connecting plate for connecting a second phase main loop, the connecting plate is provided with a limiting groove, and one end of the conductive spring can be in limiting fit with the limiting groove.

Furthermore, a pair of first binding post that inserts first looks major loop includes a first incoming line terminal be provided with the wiring subassembly on the first incoming line terminal, the wiring subassembly includes first wiring portion and first lead wire, first wiring portion is arranged in inserting first looks major loop, and first lead wire passes first wiring hole and stretches into in the mounting groove and be connected with the first power access point of circuit board.

Further, first looks utmost point shell includes that first base and lid close the first upper cover on first base, and second looks utmost point shell includes that second base and lid close the second upper cover on the second base, the mounting groove is located between first upper cover and the second base to cover on first and be provided with first wiring hole, be provided with second wiring hole on the second base, at the internally mounted of second looks utmost point shell have the second incoming line terminal, the second outgoing line terminal and the arc ignition angle of access second looks major loop.

Further, a pair of first binding post includes first incoming wire terminal and first leading-out terminal, and first incoming wire terminal sets up the both sides in first looks utmost point shell with second leading-out terminal along casing length direction, and the circuit board is including connecting as a holistic diaphragm and vertical plate, vertical plate is located the one side that is close to first leading-out terminal, and the diaphragm transversely sets up between first leading-out terminal and first incoming wire terminal, and the diaphragm sets up along the lower part of casing.

The utility model discloses a circuit breaker, set up the circuit board in the mounting groove between first looks utmost point shell and second looks utmost point shell, the circuit board is respectively through the first wiring hole of mounting groove, the second wiring hole inserts first looks major loop, in the second looks major loop, make the circuit board can directly get the electricity from the two poles of the earth of circuit breaker, the circuit board does not need external power supply and can not produce and stretch out the outer wire of getting of shell, the mounting groove that is used for the installation circuit board that forms between the first looks utmost point shell of deuterogamying and the second camera shell, and the stable structure that inserts second looks major loop of circuit board of conducting spring, the assembly is convenient and save space, do benefit to the miniaturized design of circuit breaker.

In addition, set up the connection arch in second looks utmost point shell inside, electrically conductive spring, connect protruding and lead the mutual cooperation of electrical pillar three and form stable connection structure, guaranteed the wiring stability of circuit board.

In addition, be equipped with the connecting portion that are used for being connected with the circuit board at leading electrical pillar, do benefit to and lead electrical pillar and circuit board to carry out the location and be connected.

Drawings

Fig. 1-2 are schematic structural diagrams of a circuit breaker according to the present invention;

fig. 3-5 are schematic structural diagrams of a first upper cover in a circuit breaker according to the present invention;

fig. 6-7 are schematic structural views of a second base in a circuit breaker according to the present invention;

fig. 8 is a schematic structural diagram of a conductive spring in a circuit breaker according to the present invention;

fig. 9 is a schematic structural diagram of a first line terminal of a circuit breaker according to the present invention;

fig. 10 is a schematic structural view of an arc striking angle in a circuit breaker according to the present invention;

fig. 11 is a schematic structural diagram of a conductive post in a circuit breaker according to the present invention;

fig. 12 is a schematic structural diagram of a circuit board in a circuit breaker according to 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 12. The present invention is not limited to the description of the following embodiments.

A circuit breaker comprises a shell 1 and a circuit board 4, wherein the shell 1 comprises a first phase pole shell 2 and a second phase pole shell 3 which are arranged in parallel, a pair of first wiring terminals connected into a first phase main loop is arranged inside the first phase pole shell 2, an arc striking angle 33 connected into a second phase main loop is arranged inside the second phase pole shell 3, a mounting groove used for mounting the circuit board 4 is formed between the first phase pole shell 2 and the second phase pole shell 3, a first wiring hole 221 and a second wiring hole 311 are respectively arranged on two sides of the mounting groove, a first power access point 44 of the circuit board 4 is connected with one first wiring terminal through the first wiring hole 221, a conductive column 43 capable of extending into the second phase pole shell 3 through the second wiring hole 311 is arranged on a second power access point 45 of the circuit board 4, a conductive spring 5 is arranged between the conductive column 43 and the arc striking angle 33, the conductive spring 5 secures the conductive post 43 inside the second phase housing 3 and electrically connects the arc runner 33 to the conductive post 43.

The utility model discloses a circuit breaker, set up circuit board 4 in the mounting groove between first phase utmost point shell 2 and second phase utmost point shell 3, circuit board 4 is respectively through the first wiring hole 221 of mounting groove, second wiring hole 311 inserts first phase major loop, in the second phase major loop, make circuit board 4 can directly get the electricity from the two poles of the earth of circuit breaker, circuit board 4 does not need the external power supply, and form the mounting groove of installation circuit board 4 between first phase utmost point shell 2 and second camera shell, the structure of the stable second phase major loop of inserting of circuit board 4 of conductive spring 5 of deuterogamying, the assembly is convenient and save space, do benefit to the miniaturized design of circuit breaker.

With reference to fig. 1 to 12, an embodiment of a circuit breaker is provided, where the circuit breaker includes a housing 1 and a circuit board 4, the housing 1 includes a first phase pole housing 2 and a second phase pole housing 3, which are arranged in parallel, and preferably, the first phase pole housing 2 is composed of a first base 21 and a first upper cover 22 covering the first base 21, and the second phase pole housing 3 is composed of a second base 31 and a second upper cover 32 covering the second base 31. A pair of first connection terminals connected to a first phase main loop is installed inside the first phase shell 2, the pair of connection terminals includes a first incoming terminal 23 and a first outgoing terminal, the first incoming terminal 23 and the first outgoing terminal are respectively arranged on two sides inside the first phase shell 2 along the length direction of the shell 1, a second incoming terminal connected to a second phase main loop, a second outgoing terminal and an arc leading angle 33 are installed inside the second phase shell 3, a mounting groove (not shown) for mounting the circuit board 4 is formed between the first phase shell 2 and the second phase shell 3, namely, a mounting groove (not shown) for mounting the circuit board 4 is arranged between the first upper cover 22 and the second base 31, a first connection hole 221 and a second connection hole 311 are respectively arranged on two sides of the mounting groove, preferably, the first connection hole 221 is arranged on the first upper cover 22, and the second connection hole 311 is arranged on the second base 31, the circuit board 4 is equipped with an assembly (not shown) for detecting, feeding back and processing residual current signals, the first power access point 44 of the circuit board 4 is connected with the first incoming line terminal 23 through the first wiring hole 221, the second power access point 45 of the circuit board 4 is provided with a conductive column 43 which can extend into the second phase electrode housing 3 through the second wiring hole 311, a conductive spring 5 is arranged between the conductive column 43 and the arc striking angle 33, and the conductive spring 5 fixes the conductive column 43 inside the second phase electrode housing 3 and enables the arc striking angle 33 and the conductive column 43 to form an electrical connection.

As shown in fig. 3 and 5, which are schematic views of the first upper cover 22 near the second base 31, a mounting groove for mounting the circuit board 4 is formed on the first upper cover 22 near the second base 31. Fig. 4 is a schematic view of the first upper cover 22 close to the first base 21.

An embodiment of the conductive spring 5 securing the conductive post 43 within the second phase housing 3 is provided in connection with fig. 6-8, 10. A connecting protrusion 312 is arranged inside the second phase pole housing 3, the connecting protrusion 312 is arranged on the second base 31 and is located on one side of the second wiring hole 311, the conductive spring 5 fixes the conductive column 43 and the connecting protrusion 312 together, preferably, the conductive spring 5 is a torsion spring, the conductive spring 5 includes a first elastic arm 51, a second elastic arm 52 and a circular ring part 53 connected between the first elastic arm 51 and the second elastic arm 52, the first elastic arm 51 is connected with the arc-striking angle 33, preferably, a connecting plate 34 for connecting in the second phase main loop is arranged at one end of the arc-striking angle 33, a tin soldering point 343 for connecting with the second incoming line terminal is arranged on one side of the connecting plate 34, a limiting groove 341 is arranged on the connecting plate 34, and a limiting part 511 for limiting and matching with the limiting groove 341 is arranged on the conductive spring 5. In this embodiment, open grooves are formed as the limit grooves 341 on both sides of the lower edge of the connecting plate 34, the middle portion of the lower edge of the connecting plate 34 extends outward to form an extending portion 342, the extending portion 342 is located between the two open grooves, a soldering point 343 connected to the second wire inlet terminal is formed on the extending portion 342, and the first elastic arm 51 of the conductive spring 5 is provided with a limit portion 511 which can be snapped into the open grooves. As shown in fig. 8, the end of the first elastic arm 51 of the conductive spring 5 is bent to serve as a limiting portion 511 for limiting the first elastic arm 51 to cooperate with the connecting plate 34 to prevent the first elastic arm 51 from being separated from the opening groove. In this embodiment, the first elastic arm 51 and the second elastic arm 52 are disposed in two opposite directions, so that the conductive spring 5 is disposed as close to the arc striking angle 33 as possible, which is beneficial to reducing the space occupied by the conductive spring 5 in the second phase pole housing 3, the second elastic arm 52 is fixedly connected with the second phase pole housing 3, and as shown in fig. 6, the second elastic arm 52 abuts against the inner wall of one side of the second phase pole housing 3, so that the conductive spring 5 is stably disposed in the second phase pole housing 3; the circular ring part 53 is sleeved on the conductive column 43 and the connecting protrusion 312 and used for fixing the conductive column 43 and the connecting protrusion 312 together, and the inner diameter of the circular ring part 53 of the conductive spring 5 is smaller than or equal to the sum of the outer diameter of the conductive column 43 and the outer diameter of the connecting protrusion 312, so that the circular ring part 53, the conductive column 43 and the connecting protrusion 312 form interference fit, and the connection stability of the conductive spring 5, the conductive column 43 and the connecting protrusion 312 is ensured. Further, it is preferable that one side of connecting protrusion 312 is provided with a chamfer that facilitates the inboard close contact of ring portion 53, the opposite side of connecting protrusion 312 abuts against one side of conducting post 43, the opposite side of conducting post 43 abuts against the inboard of ring portion 53, of course, one side that connecting protrusion 312 and conducting post 43 contact can be provided with an arc groove (not shown) for limiting, the depth of preferred arc groove is less than the diameter of conducting post 43, the lateral wall portion of conducting post 43 is located the arc groove at this moment, the lateral wall of one side opposite to the arc groove is close to the inside wall of ring portion 53, the chamfer and the arc groove of connecting protrusion 312 facilitate the assembly of ring portion 53.

As another structure (not shown) of the limiting groove 341, a groove structure disposed in the middle of the connecting plate 34 may also be adopted, the first elastic arm 51 of the conductive spring 5 may freely pass through the limiting groove 341, but the limiting portion 511 of the first elastic arm 51 cannot freely pass through the limiting groove 341, the limiting portion 511 at this time may be formed by bending the end of the first elastic arm 51, but the limiting portion 511 is not limited to the structure with bent end, and only the limiting portion 511 formed by bending the end of the first elastic arm 51 is convenient to assemble, and has a better limiting effect. Of course, the specific limiting portion 511 may not be provided, and the movement of the first elastic arm 51 is limited only by the interference fit between the limiting groove 341 and the first elastic arm 51, but the assembling and limiting effects are not as good as those of the structure provided with the limiting portion 511.

As shown in fig. 5, 6 and 11, the height of the conductive column 43 is slightly higher than that of the connection bump 312, as an improvement of the conductive column 43, it is preferable that a connection portion 431 for connecting with the circuit board 4 is convexly provided on an end face of one end of the conductive column 43, and the connection portion 431 forms a step structure on one end of the conductive column 43, so as to facilitate the positioning and welding of the connection portion 431 and the circuit portion.

As shown in fig. 3 to 5 and 9, the first wire terminal 23 of the present embodiment is provided with a wire connection assembly, the wire connection assembly includes a first wire connection portion 231 and a first lead 232, the first wire connection portion 231 is connected to the first phase main loop by soldering, and the first lead 232 extends into the mounting groove through the first wire connection hole 221 and is connected to the first power access point 44 of the circuit board 4.

As shown in fig. 3, 5 and 12, the circuit board 4 in this embodiment preferably includes a horizontal plate 42 and a vertical plate 41 connected as a whole, the vertical plate 41 is located at a side close to the first wire-out terminal, the horizontal plate 42 is transversely disposed between the first wire-out terminal and the first wire-in terminal 23, the horizontal plate 42 is disposed along the lower portion of the housing 1, a first power access point 44 is disposed at a side of the horizontal plate 42 close to the first wire-in terminal 23, and the conductive column 43 of the circuit board 4 is disposed on the horizontal plate 42 of the circuit board 4.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a circuit breaker, includes casing (1) and circuit board (4), casing (1) is including the first looks utmost point shell (2) and the second looks utmost point shell (3) that set up side by side first looks utmost point shell (2) internally mounted has a pair of first binding post that inserts first looks major loop, has run-on angle (33) that insert second looks major loop at second looks utmost point shell (3) internally mounted, its characterized in that: the installation groove for installing the circuit board (4) is formed between the first phase pole shell (2) and the second phase pole shell (3), the two sides of the installation groove are respectively provided with a first wiring hole (221) and a second wiring hole (311), a first power access point (44) of the circuit board (4) is connected with a first wiring terminal through the first wiring hole (221), a second power access point (45) of the circuit board (4) is provided with a conductive column (43) which can extend into the second phase pole shell (3) through the second wiring hole (311), a conductive spring (5) is arranged between the conductive column (43) and the arc-leading angle (33), and the conductive spring (5) is used for fixing the conductive column (43) in the second phase pole shell (3) and enabling the arc-leading angle (33) to be electrically connected with the conductive column (43).

2. A circuit breaker according to claim 1, wherein: and a connecting bulge (312) is arranged in the second phase pole shell (3), the connecting bulge (312) is positioned at one side of the second wiring hole (311), and the conductive column (43) and the connecting bulge (312) are fixed together by the conductive spring (5).

3. A circuit breaker according to claim 2, wherein: conductive spring (5) are the torsional spring, conductive spring (5) include first elastic arm (51), second elastic arm (52) and connect ring portion (53) between first elastic arm (51) and second elastic arm (52), first elastic arm (51) are connected with arc ignition angle (33), second elastic arm (52) and second looks utmost point shell (3) fixed connection, ring portion (53) cover is located and is led on electric pillar (43) and connect arch (312) for it is together fixed to lead electric pillar (43) and connect arch (312).

4. A circuit breaker according to claim 3, wherein: one side of the connecting protrusion (312) is provided with a chamfer which is beneficial to the inner side of the circular part (53) to be tightly attached, the other side of the connecting protrusion (312) is abutted against one side of the conductive column (43), and the other side of the conductive column (43) is tightly attached to the inner side of the circular part (53).

5. A circuit breaker according to claim 4, wherein: an arc groove used for limiting the conductive column (43) is formed in the other side of the connecting protrusion (312), and the depth of the arc groove is smaller than the diameter of the conductive column (43).

6. A circuit breaker according to claim 1, wherein: one end face of the conductive column (43) is convexly provided with a connecting part (431) used for being connected with the circuit board (4), and the connecting part (431) enables one end of the conductive column (43) to form a step structure.

7. A circuit breaker according to claim 1, wherein: one end of the arc ignition angle (33) is provided with a connecting plate (34) used for being connected into a second phase main loop, the connecting plate (34) is provided with a limiting groove (341), and the conductive spring (5) is provided with a limiting part (511) used for being in limiting fit with the limiting groove (341).

8. A circuit breaker according to claim 1, wherein: a pair of first binding post that inserts first looks major loop includes one first incoming line terminal (23) be provided with the wiring subassembly on first incoming line terminal (23), the wiring subassembly includes first wiring portion (231) and first lead wire (232), first wiring portion (231) are arranged in inserting first looks major loop, and first lead wire (232) are passed first wiring hole (221) and are stretched into the mounting groove and are connected with first power access point (44) of circuit board (4).

9. A circuit breaker according to claim 1, wherein: first looks utmost point shell (2) include first base (21) and lid and close first upper cover (22) on first base (21), and second looks utmost point shell (3) include second base (31) and lid and close second upper cover (32) on second base (31), the mounting groove is located between first upper cover (22) and second base (31) to be provided with first wiring hole (221) on first upper cover (22), be provided with second wiring hole (311) on second base (31), have the second incoming line terminal, second outgoing line terminal and the arc angle of leading out (33) of inserting the second looks major loop at the internally mounted of second looks utmost point shell (3).

10. A circuit breaker according to claim 1, wherein: a pair of first binding post includes first inlet terminal (23) and first leading-out terminal, and first inlet terminal (23) set up the inside both sides in first looks utmost point shell (2) with second leading-out terminal along casing (1) length direction, and circuit board (4) are including connecting diaphragm (42) and vertical plate (41) as a whole, vertical plate (41) are located the one side that is close to first leading-out terminal, and diaphragm (42) transversely set up between first leading-out terminal and first inlet terminal (23), and diaphragm (42) set up along the lower part of casing (1).

Images