A circuit breaker

Abstract

The utility model discloses a circuit breaker belongs to low -voltage electrical apparatus technical field, and the circuit breaker includes shell, movable contact structure and indication subassembly, is equipped with the indication window on the shell, movable contact structure is rotatoryly established in the shell, indication subassembly includes slide and indication piece, and the slide is slidably established in the shell, and the first end of slide is in abutment with movable contact structure, and the second end of slide is connected with indication piece, and is equipped with the opening and closing mark on indication piece. Wherein, movable contact structure rotates to the opening and closing position and can push indication piece to the first indication position through the slide, and the opening and closing mark of indication piece at the first indication position is exposed to the indication window. The circuit breaker provided by the utility model can judge the state of the circuit breaker through whether the opening and closing mark is exposed to the indication window after the circuit breaker opening and closing operation, and the safety is improved.

Claims

1. A circuit breaker characterized by, include: A housing (100) having an indicator window (101) thereon; A movable contact structure (200) is rotatably disposed within the outer casing (100); The indicating component includes a slide rod (300) and an indicating element (400). The slide rod (300) is slidably disposed within the housing (100). The first end of the slide rod (300) abuts against the movable contact structure (200), and the second end of the slide rod (300) is connected to the indicating element (400). The indicating element (400) is provided with a trip mark (401). When the moving contact structure (200) is rotated to the open position, the sliding rod (300) can push the indicator (400) to the first indicator position, and the open mark (401) of the indicator (400) in the first indicator position is exposed to the indicator window (101).

2. The circuit breaker of claim 1, wherein, The indicator (400) is slidably disposed within the housing (100). The indicator (400) is provided with a push surface (403). The second end of the slide rod (300) abuts against the push surface (403), and the push surface (403) and the slide rod (300) are set at an angle to each other.

3. The circuit breaker of claim 2, wherein, The indicator (400) includes an indicator plate (410) and a push block (420). The indicator plate (410) is slidably disposed within the housing (100). An indicator surface (4101) is provided on the side of the indicator plate (410) away from the push block (420). The trip mark (401) is provided on the indicator surface (4101). The push surface (403) is provided on the end of the push block (420) away from the indicator plate (410).

4. The circuit breaker of claim 3, wherein, The housing (100) is provided with a mounting groove (102), and the bottom surface of the mounting groove (102) is provided with an indicator window (101); The circuit breaker also includes a limiting member (500), which is snapped into the mounting groove (102); The indicator plate (410) is slidably disposed in the mounting groove (102), and the indicator plate (410) is sandwiched between the bottom surface of the mounting groove (102) and the limiting member (500).

5. The circuit breaker of claim 4, wherein, The indicator plate (410) has a first protrusion (411) on one side facing the bottom surface of the mounting groove (102), and the bottom surface of the mounting groove (102) has a first sliding groove (1023), and the first protrusion (411) is slidably disposed in the first sliding groove (1023). And / or, the indicator plate (410) is provided with a second protrusion (412) on the side facing the limiting member (500), and the second protrusion (412) abuts against the limiting member (500).

6. The circuit breaker of claim 1, wherein, The indicator (400) is rotatably disposed inside the housing (100), the trip mark (401) is disposed on the peripheral surface of the indicator (400), and the second end of the slide rod (300) abuts against the indicator (400); Alternatively, the indicator (400) may be an incomplete gear, the indicator (400) may be rotatably disposed within the housing (100), the open mark (401) may be disposed on the circumferential arc surface of the indicator (400), and the second end of the slide rod (300) may be provided with a rack portion, the slide rod (300) may be meshed with the indicator (400) through the rack portion.

7. The circuit breaker of claim 1, wherein, The indicator component further includes a first elastic element (610) connected to the indicator (400), the first elastic element (610) causing the indicator (400) to tend to move away from the first indicator position; And / or, the indicating component further includes a second elastic element (620) connected to the slide bar (300), the second elastic element (620) causing the slide bar (300) to tend to abut against the moving contact structure (200).

8. The circuit breaker of claim 7, wherein, The outer shell (100) is provided with a guide sleeve (103), and the guide sleeve (103) is provided with a first limiting stage (1031); The slide rod (300) slides through the guide sleeve (103), and a second limiting platform (310) is provided on the outer periphery of the slide rod (300). The second limiting platform (310) is located on the side of the first limiting platform (1031) away from the indicator (400) along the sliding direction of the slide rod (300). The second elastic element (620) is sleeved on the slide rod (300) and sandwiched between the first limiting platform (1031) and the second limiting platform (310).

9. The circuit breaker according to claim 8, characterized in that, The slide rod (300) has an elongated hole (330) on its outer periphery. The length of the elongated hole (330) extends along the axial direction of the slide rod (300). The slide rod (300) has two inverted protrusions (320) spaced at equal intervals along its circumference. The elongated hole (330) is located between the two inverted protrusions (320). The inverted protrusions (320) are located on the side of the first limiting platform (1031) away from the second limiting platform (310) along the sliding direction of the slide rod (300).

10. The circuit breaker of claim 8, wherein, The guide sleeve (103) is also provided with a stepped surface (1032); along the sliding direction of the slide rod (300), a portion of the projection of the second limiting platform (310) is located on the stepped surface (1032), and the stepped surface (1032) is located between the first limiting platform (1031) and the second limiting platform (310); The distance L1 between the step surface (1032) and the first end of the guide sleeve (103) is greater than the distance L2 between the first limiting platform (1031) and the second end of the guide sleeve (103), and the distance L2 between the first limiting platform (1031) and the second end of the guide sleeve (103) is greater than the sliding stroke S of the slide rod (300).

11. The circuit breaker of claim 1, wherein, The circuit breaker also includes a micro switch (710) disposed within the housing (100), wherein the indicator (400) in the first indicator position is capable of abutting against the actuating element of the micro switch (710) and triggering the micro switch (710).

12. The circuit breaker of claim 11, wherein, The indicator (400) includes an indicator plate (410) and a push block (420). The indicator plate (410) is slidably disposed within the housing (100). The side of the indicator plate (410) away from the push block (420) is provided with an indicator surface (4101). The indicator surface (4101) is provided with the trip mark (401). The end of the push block (420) away from the indicator plate (410) is provided with a push surface (403) and a lever (430). The second end of the slide rod (300) abuts against the push surface (403), and the push surface (403) and the sliding direction of the slide rod (300) are set at an angle. The lever (430) is used to abut against the trigger of the micro switch (710).

13. The circuit breaker of claim 1, wherein, The circuit breaker also includes a circuit board (720), which is electrically connected to the moving contact structure (200); the circuit board (720) is provided with an electrical indicator, which can be triggered when the moving contact structure (200) is rotated to the closed position.

14. The circuit breaker of claim 1, wherein, The circuit breaker further includes an electric operating mechanism (810), and the housing (100) includes: Shell body (110), the movable contact structure (200) is disposed inside the shell body (110); An intermediate seat (120) is provided on the shell body (110), the electric operating mechanism (810) is provided on the intermediate seat (120), and the slide rod (300) slides through the intermediate seat (120); An electric control housing (130) is disposed on the intermediate seat (120). The electric control housing (130) is provided with the indicator window (101). The indicator (400) and the electric control mechanism (810) are disposed inside the electric control housing (130).

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