Breaker

Abstract

A circuit breaker, comprising a housing (100), an input-side wiring terminal (111) and an output-side wiring terminal (112) which are positioned on the housing, and a moving contact (202) and a stationary contact (201) which are positioned in the housing. A passage (300) is arranged in the housing between two wiring terminals to be connected with a conductor (400), and the conductor connected with the two wiring terminals is arranged in the passage. Therefore, the present invention has the advantages of simple wire connection, good safety, space saving, beautiful appearance and clear and accurate indication of the switch state.

Claims

1. A circuit breaker, comprising a housing, an input-side wiring terminal and an output-side wiring terminal which are positioned on the housing, and a moving contact and a stationary contact which are positioned in the housing; and the circuit breaker is characterized in that a passage is arranged in said housing between two wiring terminals to be connected with a conductor, and the conductor connected with two wiring terminals is arranged in said passage; and wherein said passage is formed by forming a groove on the hack of the housing and covering with an insulating plate, and said conductor is positioned in said groove.

2. The circuit breaker according to claim 1, characterized in that: said conductor is a copper busbar.

3. The circuit breaker according to claim 2, characterized in that: said wiring terminals are connected with a perforated copper column and the copper busbar.

4. The circuit breaker according to claim 2, characterized in that: said circuit, breaker is a three-electrode AC-DC circuit breaker; a passage is arranged between a third-electrode wiring terminal on an input side and a second-electrode wiring terminal on an output side (or between a first-electrode wiring terminal on the input side and a second-electrode wiring terminal on the output side) in the housing; said copper busbar is positioned in said passage; and both ends of said copper busbar are respectively connected with the wiring terminals corresponding to said copper busbar.

5. The circuit breaker according claim 2, characterized in that: said circuit breaker is a four-electrode AC-DC circuit breaker; passages are arranged between a second-electrode wiring terminal on an input side and a first-electrode wiring terminal on an output side (or between a first-electrode wiring terminal on the input side and a second-electrode wiring terminal on the output side) and between a third-electrode wiring terminal on the input side and a fourth-electrode wiring terminal on the output side (or between a fourth-electrode wiring terminal the input side and a third-electrode wiring terminal on the output side) in said housing; and two copper busbars are positioned in two passages and respectively connected with the wiring terminals corresponding to the copper busbars.

6. The circuit breaker according to claim 1, characterized in that: indicating lamps are arranged in said housing; said indicating lamps are connected with current limiting resistors at series and connected in a circuit on the output side of the circuit breaker; and said housing has a window on a panel in a position corresponding to said indicating lamps.

7. The circuit breaker according to claim 6, characterized in that: said circuit breaker is a DC circuit breaker, and said indicating lamps are connected with the current limiting resistors in series and connected between a positive electrode and a negative electrode on the output side of the circuit breaker.

8. The circuit breaker according to any claim of claim 7, characterized in that said indicating lamps are neon, lamps or LED lamps.

9. The circuit breaker according to claim 6, characterized in that: said circuit breaker is an AC circuit breaker, and said indicating lamps and said current limiting resistors are connected in series between electrodes on the output side of the circuit breaker.

10. The circuit breaker according to any claim of claim 9, characterized in that: said indicating lamps are neon lamps or LED lamps.

11. The circuit breaker according to any claim of claim 6, characterized in that: said indicating lamps are neon lamps or LED lamps.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention is described below in detail n combination with the drawings and specific embodiments.

(2) FIG. 1 is a circuit diagram of external wire connection of a three-electrode circuit breaker;

(3) FIG. 2 is a diagram of lode of external wire connection of a four-electrode circuit breaker;

(4) FIG. 3 is a diagram of a second mode of external wire connection of a four-electrode circuit breaker;

(5) FIG. 4 is a stereographic diagram of a three-electrode AC-DC circuit breaker of embodiment 1;

(6) FIG. 5 is a front diagram of a three-electrode AC-DC circuit breaker of embodiment 1;

(7) FIG. 6 is a back diagram of a three-electrode AC-DC circuit breaker of embodiment 1;

(8) FIG. 7 is a circuit diagram of internal wire connection of a DC circuit breaker of embodiment 1;

(9) FIG. 8 is a circuit diagram of internal wire connection of an AC circuit breaker of embodiment 1;

(10) FIG. 9 is a stereographic diagram of a four-electrode AC-DC circuit breaker of embodiment 2;

(11) FIG. 10 is a front diagram of a four-electrode AC-DC circuit breaker of embodiment 2;

(12) FIG. 11 is a back diagram of a four-electrode AC-DC circuit breaker of embodiment 2;

(13) FIG. 12 is a circuit diagram of internal wire connection of a DC circuit breaker of embodiment 2;

(14) FIG. 13 is a circuit diagram of internal re connection of an AC circuit breaker of embodiment 2; and

(15) FIG. 14 is a structural diagram of connection of a copper busbar.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(16) The circuit breaker of the present invention comprises a housing, an input-side wiring terminal and an output-side wiring terminal which are positioned on the housing, and a moving contact and a stationary contact which are positioned in the housing. A passage is arranged in the housing between two wiring terminals to be connected with a conductor, and the conductor connected with the two wiring terminals is arranged in the passage. Passages are arranged in the housing of the circuit breaker and the wiring terminals are connected in series with the copper busbar in the passages, thereby ensuring consistent direction of the current and normative and simple wire connection, avoiding electric shock hazard, not contacting the outside and ensuring the safety.

(17) To facilitate processing and assembly, each passage is formed by forming a groove on the back of the housing and covering with an insulating plate, and the conductor is positioned in the groove.

(18) To clearly describe the technical solutions and the features of the present invention, the present invention will be described below in detail through the embodiments:

Embodiment 1

(19) As shown in FIG. 4 to FIG. 6, a three-electrode AC-DC circuit breaker comprises a housing 100, wherein a first-electrode wiring terminal 111, a second-electrode wiring terminal 112 and a third-electrode wiring terminal 113 on an input side are arranged on the upper part of the housing 100; a first-electrode wiring terminal 121, a second-electrode wiring terminal 122 and a third-electrode wiring terminal 123 on an output side are arranged on the lower part of the housing 100; and a stationary contact 201 and a moving contact 202 are arranged in the housing 100 (as shown in FIG. 7).

(20) As shown in FIG. 4 to FIG. 6, a groove 300 is arranged between a third-electrode wiring terminal 113 on the input side and a second-electrode wiring terminal 122 on the output side on the back of the housing 100. A copper busbar 400 is arranged in the groove 300. Both ends of the copper busbar 400 are respectively connected with the input-side wiring terminal 113 and the output-side wiring terminal 122.

(21) Specifically, in combination with FIG. 14, both ends of the copper busbar 400 are respectively fixed to the wiring terminal 113 and the wiring terminal 122 together with the perforated copper column 401. The copper busbar 400 is inlaid in the groove 300 on the back of the housing 100. An epoxy insulating plate (not shown in the figure) is covered on the back of the housing 100 for performing protection and isolation. Series wire connection in the circuit breaker is safe and beautiful. The internal wire connection diagram is shown in FIG. 7.

(22) As shown in FIG. 7, in order to indicate the switch state of the DC circuit breaker, the DC circuit breaker also comprises a state indicating device. In combination with FIG. 7, the state indicating device comprises indicating lamps 501 and current limiting resistors 502 connected in series, and is connected between a positive electrode and a negative electrode on the output side of the circuit breaker (i.e., a second electrode and a first electrode on the output side) for indicating the on/off of a DC switch. The indicating lamps 501 can be neon lamps or LED lamps.

(23) As shown in FIG. 8, for an AC circuit breaker, the indicating lamps 501 and the current limiting resistors 502 of the state indicating device can also be arranged between two electrodes of the circuit on the output side (i.e., between the first electrode and the second electrode, between the second electrode and a third electrode and between the third electrode and the first electrode on the output side) for indicating the on/off of an AC switch.

(24) Also as shown in FIG. 5, a window 503 for the emission of the indicating lamps is arranged on a panel of the housing 100 in a position corresponding to the indicating lamps. After the circuit breaker is closed, the light emitted through the window 503 can indicate that the circuit is switched on.

Embodiment 2

(25) As shown in FIG. 9 to FIG. 11, a four-electrode AC-DC circuit breaker and the difference with embodiment 1 that the input side and the output side of the circuit breaker respectively have several electrodes, namely that a first-electrode wiring terminal 131, a second-electrode wiring terminal 132, a third-electrode wiring terminal 133 and a fourth-electrode wiring terminal 134 on an input side are respectively arranged on the upper part of the housing 100, and a first-electrode wiring terminal 141, a second-electrode wiring terminal 142, a third-electrode wiring terminal 143 and a fourth-electrode wiring terminal 144 on the output side are respectively arranged on the lower part of the housing 100.

(26) As shown in FIG. 9 and FIG. 11, grooves 300 are respectively arranged between the input-side wiring terminal 134 and the output-side wiring terminal 143 and between the input-side wiring terminal 131 and the output-side wiring terminal 142 on the back of the housing 100. Two copper busbars 400 are respectively inlaid in the two grooves 300. Both ends of the first copper busbar 400 are respectively connected with the input-side wiring terminal 131 and the output-side wiring terminal 142, and both ends of the second copper busbar 400 are respectively connected with the input-side wiring terminal 134 and the output-side wiring terminal 142. The internal wire connection diagram is shown in FIG. 12.

(27) As shown in FIG. 12, the indicating lamps 501 and the current limiting resistors 502 connected in series are connected between a positive electrode and a negative electrode on the output side of the circuit breaker (i.e., between a third electrode and a second electrode on the output side). The on/off of the DC switch is indicated.

(28) As shown in FIG. 13, the indicating lamps 501 and the current limiting resistors 502 of the state indicating device can also be arranged between a phase line and a null line of each item of an output-side circuit (i.e., between the first electrode and the second electrode, between the second electrode and the third electrode and between the third electrode and the first electrode on the output side) for indicating the on/off of an AC switch.

(29) Other structures and embodiments are identical, and will not be described again.

(30) However, those skilled in the art should appreciate that the above embodiments are only used for describing the present invention, rather than limiting the present invention. Modifications and variations to the above embodiments will be covered within the claims of the present invention without departing from the substantial spirit of the present invention.