CN219642768U - Tripping device and circuit breaker - Google Patents

Abstract

The utility model provides a tripping device and a circuit breaker, wherein the tripping device comprises a bracket, and an electromagnetic mechanism and an energy storage mechanism which are arranged on the bracket, the energy storage mechanism comprises a spring, a locking piece and a sliding piece, the locking piece and the sliding piece can be interlocked, the spring is locked in an energy storage state, the electromagnetic mechanism is used for unlocking the locking piece and the sliding piece, so that the spring releases energy and drives the sliding piece to move, a micro switch and a reset structure are respectively arranged on two opposite sides of the bracket, when the spring releases energy to drive the sliding piece to move, the sliding piece triggers the micro switch, the reset structure is connected with the sliding piece, and the reset structure is used for driving the sliding piece to compress the spring and enabling the sliding piece to be interlocked with the locking piece again. The circuit breaker is provided with the tripping device, and the function of outputting switching value signals can be realized through the cooperation of the sliding piece and the micro switch on the basis of ensuring the compact structure of the tripping device.

Description

Tripping device and circuit breaker

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to a tripping device and a circuit breaker.

Background

The tripping device is commonly used for switching appliances such as circuit breakers and the like, and is used for triggering the circuit breakers to trip so as to enable the circuit breakers to break lines and realize protection or control functions. However, the conventional tripping device usually does not have a micro switch and does not have the function of outputting a switching value signal, and although the micro switch can be directly additionally arranged on the tripping device, the layout is unreasonable, so that the volume of the tripping device is increased and the reliability is poor.

In addition, the structure reliability that is used for the direction between current trip gear's slider and the support is poor, adopts forked structure generally, and easy deformation, reliability are low, and mechanical life is low, and the number of times has more easily led to mechanism clamping stagnation, inefficacy, leads to the earth leakage protection function inefficacy of product even, causes the incident.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provides a tripping device.

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

the utility model provides a trip gear, includes the support and sets up electromagnetic mechanism and energy storage mechanism on the support, and energy storage mechanism includes spring, locking piece and slider, and locking piece and slider can interlock to lock the spring in energy storage state, electromagnetic mechanism is used for unblock locking piece and slider, makes the spring release can and drive the slider and remove, is equipped with micro-gap switch and reset structure respectively in the opposite both sides of support, and the spring release can drive the slider when removing, the slider triggers micro-gap switch, reset structure with the slider is connected, and reset structure is used for driving slider compression spring to make the slider interlock with the locking piece again.

Preferably, the slider includes the slide and upper plate and the lower side plate that link to each other with the slide both sides respectively, be equipped with on the upper plate and be used for triggering micro-gap switch's clamp plate, reset structure includes reset plate and the reset lever that links to each other with the reset plate side, the reset plate with the slide interval sets up, the reset plate respectively with upper plate and lower side plate link to each other be equipped with first guide way between the reset plate with the slide, the support is equipped with and is arranged in inserting first guide way sliding fit's first guide way.

Preferably, the support comprises two opposite clamping plates and a connecting plate connected between the two clamping plates, wherein the two clamping plates and the connecting plate form a U-shaped structure, an electromagnetic mechanism is arranged in the U-shaped structure, a sliding part is arranged at an opening of the U-shaped structure, a sliding plate extends into the U-shaped structure, a locking part and a spring are arranged between the sliding part and the support, a micro switch is arranged on the outer side of one clamping plate, and a reset structure is connected with the sliding part and positioned on the outer side of the other clamping plate.

Preferably, the side edge of the upper side plate far away from the reset structure is provided with a second inner guide groove, the bracket is provided with a second guide plate which is arranged opposite to the first guide plate, and the side surface of the second guide plate is provided with a second inner guide plate which is inserted into the second inner guide groove in a sliding fit manner; the first guide plate is arranged on one clamping plate, the second guide plate is arranged on the other clamping plate, and the sliding plate at least extends between the first guide plate and the second guide plate.

Preferably, the upper side plate and the lower side plate are respectively provided with a first upper guide groove and a first lower guide groove, the first upper guide groove and the first lower guide groove are respectively communicated with the first guide groove, and the first guide plate can be respectively inserted into the first guide groove, the first upper guide groove and the first lower guide groove to be in sliding fit; the upper side plate is provided with a first inner guide groove, the first inner guide groove is perpendicular to the first guide groove, the first upper guide groove is communicated with the first inner guide groove to form an L-shaped structure, and the side surface of the first guide plate is provided with a first inner guide plate which is used for being inserted into the first inner guide groove in a sliding fit mode.

Preferably, a third limiting plate and a fourth limiting plate are respectively arranged on the side surface, far away from the upper side plate, of the lower side plate, the third limiting plate is respectively connected with the lower side plate and the sliding plate, a third guide groove is formed between the third limiting plate and the reset plate, a third guide plate which is inserted into the third guide groove and is in sliding fit is arranged on the support, the fourth limiting plate is connected with the lower side plate, a fourth guide groove is formed between the fourth limiting plate and the sliding plate, and a fourth guide plate which is inserted into the fourth guide groove and is in sliding fit is arranged on the support; the third guide plate and the first guide plate are arranged on the same clamping plate, and the fourth guide plate and the second guide plate are arranged on the same clamping plate.

Preferably, the slide and the upper side plate are respectively provided with a first avoiding hole and a second avoiding hole, the first avoiding hole and the second avoiding hole are respectively used for avoiding the locking piece, the lower side plate is connected with the spring, a boss and a locking part are respectively arranged on the lower side plate, the boss is used for being in spacing fit with the spring, the locking part is used for being in spacing fit with the locking piece, the upper side plate is provided with a pull rod, a reset structure, a pressing plate and a top plate, the pull rod is used for driving a pull rod of the circuit breaker to act, and the pull rod drives an operating mechanism of the circuit breaker to trip.

Preferably, the reset structure and the sliding piece are integrally injection molded.

Preferably, the electric leakage detection device further comprises a shell, wherein the electromagnetic mechanism, the energy storage mechanism and the support are arranged in the shell, a circuit board is further arranged in the shell, and an electric leakage detection circuit is arranged on the circuit board and used for triggering the electromagnetic mechanism to act when electric leakage current is detected.

Preferably, the bracket, the electromagnetic mechanism and the energy storage mechanism are respectively arranged below the circuit board.

Preferably, the circuit board is provided with a through hole for avoiding the indicating button, the sliding part is provided with two top plates for pushing the indicating button, an avoiding groove is formed between the two top plates, the indicating button is slidably mounted on the inner side of the sleeve, and the avoiding groove is used for avoiding the sleeve.

Preferably, the support is provided with a fixed shaft, the locking piece is rotationally arranged on the fixed shaft, the locking piece comprises a triggering part and a locking part, a torsion spring connected with the locking piece is arranged on the fixed shaft and used for driving the locking piece to rotate, the locking part is made to be close to the sliding piece to rotate, and the electromagnetic mechanism is used for pushing the triggering part, so that the triggering part drives the locking piece to overcome the acting force of the torsion spring and rotate away from the sliding piece.

A circuit breaker further comprises any tripping device.

Preferably, the circuit breaker further comprises a housing, at least a first phase pole and a second phase pole are arranged in the housing, the casing of the tripping device comprises a first casing and a second casing which are arranged above the first phase pole, and a third casing which is arranged above the second phase pole, the first casing and the third casing are respectively connected with the second casing, the tripping device is arranged in the first casing, an avoidance space is arranged between the side face of the first casing and the side face of the third casing, an operating mechanism is arranged above the first phase pole, and the operating mechanism can be inserted into the avoidance space to be matched with the reset structure.

According to the tripping device, the micro-switch and the reset structure are respectively arranged on the two opposite sides of the support, namely, the micro-switch and the reset structure are respectively arranged on the two sides of the electromagnetic mechanism, on the basis of ensuring that the tripping device is compact in structure, the sliding piece can be used for driving the switching device to trip and is matched with the micro-switch at the same time, the function of outputting a switching value signal is realized, the operating mechanism can also drive the sliding piece to compress the spring through the reset structure, the function of resetting the energy storage mechanism is realized, whether the electromagnetic mechanism acts or not can be known through the switching value signal, and the on-off state of the switching device can also be indirectly determined.

In addition, reset lever that reset structure passes through reset plate and drives the slider and remove, not only can make effort more reasonable transmission through reset plate, and reset plate can also form first guide way and support sliding fit moreover, realizes the effect of slider motion direction, avoids the slider to appear crooked or clamping stagnation scheduling problem.

In addition, the sliding part and the support are assembled in an European claim structure, on the basis of ensuring compact structure, the sliding part and the support are reliably in sliding fit, and the sliding part can be matched with a plurality of elements.

Drawings

Fig. 1 is a schematic structural view of a circuit breaker of the present utility model;

FIG. 2 is a schematic view of the structure of the housing of the present utility model;

FIGS. 3-5 are schematic structural views of the trip device of the present utility model;

FIG. 6 is a schematic view of the engagement of the bracket with the slider of the present utility model;

FIG. 7 is a schematic view of the structure of the slider of the present utility model;

FIG. 8 is a schematic view of the structure of the stent of the present utility model;

in the figure, 1, a shell; 2. an electromagnetic mechanism; 21. an iron core; 3. a spring; 4. a locking member; 5. a slider; 6. a bracket; 7. a micro-switch; 8. a reset structure; 10. a housing; 101. a first phase electrode; 102. a second phase electrode; 11. a first housing; 12. a second housing; 13. a third housing; 14. an avoidance space; 15. a circuit board; 16. an indication button; 17. a through hole; 50. a pressing plate; 51. a top plate; 52. an avoidance groove; 61. a fixed shaft; 62. a torsion spring; 63. a fixing member; 41. a trigger part; 42. a locking part; 53. a slide plate; 54. an upper side plate; 541. a pull rod; 55. a lower side plate; 56. a first avoidance hole; 57. a second avoidance hole; 58. a boss; 59. a locking part; 81. a reset plate; 82. a reset lever; a1, a first guide groove; b1, a first guide plate; a11, a first upper guide groove; a12, a first lower guide groove; a13, a first inner guide groove; b13, a first inner guide plate; a21, a second inner guide groove; b2, a second guide plate; b21, a second inner guide plate; a30, a third limiting plate; a40, a fourth limiting plate; a3, a third guide groove; b3, a third guide plate; a4, a fourth guide groove; and B4, a fourth guide plate.

Detailed Description

The following examples are given in connection with the accompanying drawings to further illustrate specific embodiments of the trip device of the present utility model. The trip device of the present utility model is not limited to the description of the following embodiments.

As shown in fig. 1-5, the tripping device of the embodiment comprises a bracket 6, and an electromagnetic mechanism 2 and an energy storage mechanism which are arranged on the bracket 6, wherein the energy storage mechanism comprises a spring 3, a locking piece 4 and a sliding piece 5, the locking piece 4 and the sliding piece 5 can be interlocked, and the spring 3 is locked in an energy storage state, the electromagnetic mechanism 2 is used for unlocking the locking piece 4 and the sliding piece 5, so that the spring 3 releases energy and drives the sliding piece 5 to move, and the sliding piece 5 drives a switching device to trip, thereby realizing the protection function of disconnecting a circuit;

the two opposite sides of the bracket 6 are respectively provided with a micro switch 7 and a reset structure 8, when the spring 3 releases energy to drive the sliding piece 5 to move, the sliding piece 5 triggers the micro switch 7, the reset structure 8 is connected with the sliding piece 5, the reset structure 8 is used for driving the sliding piece 5 to compress the spring 3 and enabling the sliding piece 5 to be interlocked with the locking piece 4 again, the sliding piece 5 is provided with a pressing plate 50 matched with the micro switch 7, and the sliding piece 5 triggers the micro switch 7 through the pressing plate 50 in the moving process.

According to the tripping device of the embodiment, the micro switch 7 and the reset structure 8 are respectively arranged on two opposite sides of the support 6, namely, the micro switch 7 and the reset structure 8 are respectively arranged on two sides of the electromagnetic mechanism 2, on the basis of ensuring that the tripping device is compact in structure, the sliding piece not only can be used for driving a switching device to trip, but also can be matched with the micro switch 7 to realize the function of outputting a switching value signal, the operating mechanism can also drive the sliding piece 5 to compress the spring 3 through the reset structure 8 to realize the function of resetting the energy storage mechanism, and whether the electromagnetic mechanism acts or not can be known through the switching value signal, and the on-off state of the switching device can also be indirectly determined.

As shown in fig. 1-2, the utility model also provides a circuit breaker, which comprises a shell 10, wherein at least a first phase pole 101 and a second phase pole 102 are arranged in the shell 10, a shell 1 is arranged in the shell 10, and an electromagnetic mechanism 2, an energy storage mechanism and a bracket 6 are all arranged in the shell 1; the circuit board 15 is further arranged in the shell 1, the circuit board 15 is provided with a leakage detection circuit for triggering the electromagnetic mechanism 2 to act when the leakage current is detected, and when the leakage detection circuit detects the leakage current, the electromagnetic mechanism 2 of the tripping device is triggered to act, the locking piece 4 and the sliding piece 5 are unlocked, the spring 3 can be enabled to release energy to drive the sliding piece 5 to move, the sliding piece 5 is moved to trigger the circuit breaker to trip, meanwhile, the micro switch 7 is triggered, the micro switch 7 can output a switching value signal to an upper computer so as to monitor whether the electromagnetic mechanism acts or not, and the tripping state of the circuit breaker can be indirectly determined.

In this embodiment, the casing 1 includes a first casing 11 and a second casing 12 that are respectively disposed above the first phase pole 101, and a third casing 13 that is disposed above the second phase pole 102, where the first casing 11 and the third casing 13 are respectively connected with the second casing 12, the trip device is disposed in the first casing 11, an avoidance space 14 is disposed between a side surface of the first casing 11 and a side surface of the third casing 13, vertically installed PCB electronic component boards may be disposed in the second casing 12 and the third casing 13, and an operating mechanism (not shown in the drawing) is disposed above the first phase pole 101, where the operating mechanism may be inserted into the avoidance space 14 and cooperate with the reset structure 8. Therefore, the tripping device can be arranged on the side face of the operating mechanism, the tripping device is prevented from being arranged at the rear end of the circuit breaker, and the effect of protecting the tripping device is achieved. The circuit breaker of the present embodiment is a four-pole circuit breaker, and is not specifically limited herein, and two other phase poles are provided in addition to the first phase pole 101 and the second phase pole 102.

As shown in fig. 2, the bracket 6, the electromagnetic mechanism 2 and the energy storage mechanism are respectively disposed below the circuit board 15, the micro switch 7 is mounted on the bracket 6, and the micro switch 7 may also be mounted on the housing 1 as a degraded embodiment, but the positions of the micro switch and the pressing plate 50 need to be corresponding, at this time, the housing 1, the electromagnetic mechanism 2, the micro switch 7, the circuit board 15 and the like together form a trip device module, and are mounted in the casing 10 of the circuit breaker. The shell 1 is internally provided with an indication button 16, the circuit board 15 is provided with a through hole 17 for avoiding the indication button 16, the sliding piece 5 is provided with a top plate 51 for pushing the indication button 16, the indication button 16 is ejected out through the top plate 51 when the sliding piece 5 moves, and at least one part of the indication button 16 can extend out of the circuit breaker for indication.

As shown in fig. 7, the sliding member 5 includes two top plates 51, the two top plates 51 are respectively used for pushing the indication button 16, one top plate 51 is disposed on the pressing plate 50, an avoidance groove 52 is disposed between the two top plates 51, the indication button 16 is slidably mounted inside a sleeve (not shown in the drawing), the avoidance groove 52 is used for avoiding the sleeve, the sleeve is disposed on the casing 10 of the circuit breaker, the pressing plate 50 is used for triggering the micro switch 7, and one top plate 51 can be disposed on the pressing plate 50, so that the avoidance groove 52 between the two top plates 51 can be increased in size, and then the size and the mounting position of the sleeve and the indication button 16 mounted in the sleeve can be adjusted.

As shown in fig. 3-4, the support 6 is provided with a fixed shaft 61, the locking piece 4 is rotatably arranged on the fixed shaft 61, the locking piece 4 comprises a trigger part 41 and a locking part 42, a torsion spring 62 connected with the locking piece 4 is arranged on the fixed shaft 61, the torsion spring 62 is used for driving the locking piece 4 to rotate, the locking part 42 is close to the sliding piece 5 to rotate so as to keep locking, and in the unlocking process of the locking piece 4 and the sliding piece 5, the electromagnetic mechanism 2 is used for pushing the trigger part 41, the trigger part 41 drives the locking piece 4 to rotate away from the sliding piece 5 against the acting force of the torsion spring 62 until the locking part 42 is separated from the sliding piece 5, and the torsion spring 62 is used for driving the locking part 42 to reset so as to be convenient for the next unlocking.

The trip device of this embodiment is used for leakage protection, and the electromagnetic mechanism 2 may be implemented by using the prior art, where the electromagnetic mechanism 2 generally includes an iron core 21 and a coil for driving the iron core 21 to move, when a leakage occurs in a circuit, the circuit board 15 detects that the vector sum of currents is not 0, and energizes the coil, so that the coil drives the iron core 21 to move, and pushes the trigger portion 41 through the iron core 21, thereby performing a trip action. Of course, the trip device may be used for other fault protection, and the circuit board 15 may adjust the conditions required to be satisfied for supplying power to the coil, which falls within the protection scope of the present utility model.

As shown in fig. 3-8, another improvement of the present utility model is that the assembling structure of the sliding member 5 and the bracket 6 is that the sliding fit between the two is reliable on the basis of ensuring the compact structure, and the sliding member 5 can be matched with a plurality of elements. Preferably, the return structure 8 is injection molded integrally with the slider 5.

Referring to fig. 3-5 and 8, the bracket 6 of this embodiment includes two opposite clamping plates 64 and a connecting plate 65 connected between the two clamping plates 64 to form an approximately U-shaped structure, in which the electromagnetic mechanism 2 is installed, the sliding member 5 is installed at the opening of the U-shaped structure and is slidably matched with the two clamping plates 64, the locking member 4 and the spring 3 are provided between the sliding member 5 and the bracket 6, the micro switch 7 is disposed at the outer side of one clamping plate 64, the micro switch 7 can be clamped with the clamping plate 54, the reset structure 8 is connected with the sliding member 5 and is located at the outer side of the other clamping plate 64, and the overall structure is compact and simple.

The slider 5 includes slide 53 and upper plate 54 and the lower plate 55 that link to each other with slide 53 both sides respectively, and slide 53 extends to the interior slip of U type structure, be equipped with on the upper plate 54 and be used for triggering the clamp plate 50 of micro-gap switch 7, reset structure 8 includes reset plate 81 and the reset lever 82 that links to each other with reset plate 81 side, reset plate 81 with slide 53 interval sets up, reset plate 81 respectively with upper plate 54 and lower plate 55 be equipped with first guide way A1 between reset plate 81 and slide 53, support 6 is equipped with and is arranged in inserting first guide way A1 sliding fit's first guide way B1. The reset rod 82 of the reset structure 8 drives the sliding part 5 to move through the reset plate 81, acting force can be reasonably transferred through the reset plate 81, the reset plate 81 can form a first guide groove A1 to be in sliding fit with the support 6, the action of guiding the movement of the sliding part 5 is realized, and the problems of skew or clamping stagnation and the like of the sliding part 5 are avoided.

Further, referring to fig. 7, the sliding plate 53 and the upper side plate 54 are respectively provided with a first avoiding hole 56 and a second avoiding hole 57, the first avoiding hole 56 and the second avoiding hole 57 are respectively used for avoiding the locking piece 4, the lower side plate 55 is connected with the spring 3, a boss 58 and a locking portion 59 are respectively arranged on the lower side plate 55, the boss 58 is used for being in limit fit with one end of the spring 3, a fixing piece 63 is arranged on the support 6, the fixing piece 63 is used for being in limit fit with one end of the spring 3 far away from the boss 58, the locking portion 59 is in a hook shape, the locking portion 59 is used for being in limit fit with the locking piece 4, the locking piece 4 can be clamped to the inner side of the locking portion 59 and is used for blocking the sliding piece 5 to move through the locking portion 59, so that the spring 3 is locked in a compressed state, the upper side plate 54 is provided with a pull rod 541, a reset structure 8, a pressing plate 50 and a top plate 51, and the pull rod 541 is used for driving a traction rod of the circuit breaker, and the operation mechanism of the circuit breaker is driven by the traction rod to trip.

Further, referring to fig. 7-8, the upper side plate 54 and the lower side plate 55 are respectively provided with a first upper guide groove a11 and a first lower guide groove a12, the first upper guide groove a11 and the first lower guide groove a12 are respectively communicated with the first guide groove A1, the first guide plate B1 can be respectively inserted into the first guide groove A1, the first upper guide groove a11 and the first lower guide groove a12 to be in sliding fit, and the contact area can be increased by sliding fit of the first guide plate B1 with the first upper guide groove a11 and the first lower guide groove a12, so that the guiding effect is further improved.

Further, the upper side plate 54 is provided with a first inner guide groove a13, the first inner guide groove a13 is perpendicular to the first guide groove A1, the first upper guide groove a11 is communicated with the first inner guide groove a13 to form an L-shaped structure, the side surface of the first guide plate B1 is provided with a first inner guide plate B13 which is used for being inserted into the first inner guide groove a13 in a sliding fit manner, the direction of a contact surface can be increased on the basis of increasing the contact area, the guiding effect can be improved, the first inner guide plate B13 is not easy to deform, and clamping stagnation is avoided, so that the product leakage protection function is invalid, and safety accidents are avoided. Preferably, the first inner guide plate B13 and the first guide plate B1 are integrally bent, and have the characteristics of simple structure, reliability and stability.

Further, the upper side plate 54 is provided with a second inner guide groove a21 at a side far from the reset structure 8, the bracket 6 is provided with a second guide plate B2 opposite to the first guide plate B1, and a second inner guide plate B21 inserted into the second inner guide groove a21 in sliding fit is provided at a side surface of the second guide plate B2. The first guide plate B1 is disposed on one of the clamping plates 64, the second guide plate B2 is disposed on the other clamping plate 64, and the sliding plate 53 extends at least between the first guide plate B1 and the second guide plate B2.

As shown in fig. 6, the side surface of the lower side plate 55 far away from the upper side plate 54 is respectively provided with a third limiting plate a30 and a fourth limiting plate a40, the third limiting plate a30 is respectively connected with the lower side plate 55 and the sliding plate 53, the third limiting plate a30 and the reset plate 81 are spaced to form a third guide groove A3, the bracket 6 is provided with a third guide plate B3 which is inserted into the third guide groove A3 and is in sliding fit, the fourth limiting plate a40 is connected with the lower side plate 55, the fourth limiting plate a40 and the sliding plate 53 are spaced to form a fourth guide groove A4, and the bracket 6 is provided with a fourth guide plate B4 which is inserted into the fourth guide groove A4 and is in sliding fit.

As shown in fig. 8, the bracket 6 of the present embodiment includes two clamping plates 64 disposed opposite to each other, and a connecting plate 65 connected between the two clamping plates 64 to form an approximately U-shaped structure. The first guide plate B1, the first inner guide plate B13 and the third guide plate B3 are arranged on one of the clamping plates 64, specifically, the first guide plate B1 is convexly arranged on one clamping plate 64 close to the reset structure 8, the clamping plate 64 is far away from one end side edge of the connecting plate 65, the first inner guide plate B13 is positioned on the upper side edge of the first guide plate B1 and bends towards the inner side of the U-shaped structure, and the third guide plate B3 is arranged on the lower side edge of the clamping plate 64; the second guide plate B2, the second inner guide plate B21 and the fourth guide plate B4 are disposed on the other clamping plate 64, that is, the clamping plate close to the micro switch 7, specifically, the second guide plate B2 is disposed on a side edge of the clamping plate 64 far away from the connecting plate 65, the second inner guide plate B21 is disposed on the upper side edge of the second guide plate B2 and bends towards the inner side of the U-shaped direct structure, and the fourth guide plate B4 is disposed on the lower side edge of the clamping plate 64 and bends towards the inner side of the U-shaped structure.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (14)

1. The utility model provides a trip gear, includes support (6) and electromagnetic mechanism (2) and energy storage mechanism of setting on support (6), and energy storage mechanism includes spring (3), locking piece (4) and slider (5), and locking piece (4) and slider (5) can interlock to lock spring (3) in the energy storage state, electromagnetic mechanism (2) are used for unblock locking piece (4) and slider (5), make spring (3) release energy and drive slider (5) removal, its characterized in that: the two opposite sides of the bracket (6) are respectively provided with a micro switch (7) and a reset structure (8), when the spring (3) releases energy to drive the sliding piece (5) to move, the sliding piece (5) triggers the micro switch (7), the reset structure (8) is connected with the sliding piece (5), and the reset structure (8) is used for driving the sliding piece (5) to compress the spring (3) and enabling the sliding piece (5) to be interlocked with the locking piece (4) again.

2. The trip unit of claim 1, wherein: the sliding piece (5) comprises a sliding plate (53) and an upper side plate (54) and a lower side plate (55) which are respectively connected with two sides of the sliding plate (53), a pressing plate (50) used for triggering the micro switch (7) is arranged on the upper side plate (54), the reset structure (8) comprises a reset plate (81) and a reset rod (82) connected with the side face of the reset plate (81), the reset plate (81) is arranged at intervals with the sliding plate (53), the reset plate (81) is respectively connected with the upper side plate (54) and the lower side plate (55), a first guide groove (A1) is formed between the reset plate (81) and the sliding plate (53), and a first guide plate (B1) used for being inserted into the first guide groove (A1) in a sliding fit mode is arranged on the support (6).

3. The trip unit of claim 2, wherein: the support (6) is including setting up two splint (64) relatively to and connect link board (65) between two splint (64), two splint (64) and link board (65) form U type structure, install electromagnetic mechanism (2) in the U type structure, slider (5) are installed in the opening part of U type structure, slide (53) extend to in the U type structure, are equipped with locking piece (4) and spring (3) between slider (5) and support (6), and micro-gap switch (7) set up in the outside of one splint (64), reset structure (8) with slider (5) are connected and are located the outside of another splint (64).

4. The trip unit of claim 3, wherein: the side of the upper side plate (54) far away from the reset structure (8) is provided with a second inner guide groove (A21), the bracket (6) is provided with a second guide plate (B2) which is arranged opposite to the first guide plate (B1), and the side surface of the second guide plate (B2) is provided with a second inner guide plate (B21) which is inserted into the second inner guide groove (A21) in a sliding fit manner; the first guide plate (B1) is arranged on one of the clamping plates (64), the second guide plate (B2) is arranged on the other clamping plate (64), and the sliding plate (53) at least extends between the first guide plate (B1) and the second guide plate (B2).

5. The trip unit of claim 3, wherein: the upper side plate (54) and the lower side plate (55) are respectively provided with a first upper guide groove (A11) and a first lower guide groove (A12), the first upper guide groove (A11) and the first lower guide groove (A12) are respectively communicated with the first guide groove (A1), and the first guide plate (B1) can be respectively inserted into the first guide groove (A1), the first upper guide groove (A11) and the first lower guide groove (A12) to be in sliding fit; the upper side plate (54) is provided with a first inner guide groove (A13), the first inner guide groove (A13) is perpendicular to the first guide groove (A1), the first upper guide groove (A11) is communicated with the first inner guide groove (A13) to form an L shape, and the side surface of the first guide plate (B1) is provided with a first inner guide plate (B13) which is used for being inserted into the first inner guide groove (A13) in a sliding fit mode.

6. The trip unit of claim 4, wherein: the side surface of the lower side plate (55) far away from the upper side plate (54) is respectively provided with a third limiting plate (A30) and a fourth limiting plate (A40), the third limiting plate (A30) is respectively connected with the lower side plate (55) and the sliding plate (53), the third limiting plate (A30) and the reset plate (81) form a third guide groove (A3) at intervals, the bracket (6) is provided with a third guide plate (B3) which is inserted into the third guide groove (A3) and is in sliding fit, the fourth limiting plate (A40) is connected with the lower side plate (55), the fourth limiting plate (A40) and the sliding plate (53) form a fourth guide groove (A4) at intervals, and the bracket (6) is provided with a fourth guide plate (B4) which is inserted into the fourth guide groove (A4) and is in sliding fit; the third guide plate (B3) and the first guide plate (B1) are arranged on the same clamping plate (64), and the fourth guide plate (B4) and the second guide plate (B2) are arranged on the same clamping plate (64).

7. The trip unit of claim 2, wherein: the utility model discloses a circuit breaker, including slide (53) and upper side board (54), slide, connecting rod, locking part (59), connecting rod and connecting rod is equipped with first hole (56) and second hole (57) dodge respectively with upper side board (54) respectively, first hole (56) and second hole (57) dodge are dodged respectively and are used for dodging locking part (4) dodging, lower side board (55) are connected with spring (3), are equipped with boss (58) and hasp portion (59) respectively on lower side board (55), boss (58) are used for with spring (3) spacing cooperation, hasp portion (59) are used for with locking part (4) spacing cooperation, upper side board (54) are equipped with pull rod (541), reset structure (8), clamp plate (50) and roof (51), and pull rod (541) are used for driving the action of the pull rod of circuit breaker, drive the operating mechanism of circuit breaker and trip through the pull rod.

8. The trip unit according to any one of claims 2 to 7, wherein: the reset structure (8) and the sliding piece (5) are integrally injection molded.

9. The trip unit of claim 1, wherein: still include casing (1), electromagnetic mechanism (2), energy storage mechanism and support (6) all set up in casing (1), still be equipped with circuit board (15) in casing (1), be equipped with electric leakage detection circuit on circuit board (15) for trigger electromagnetic mechanism (2) action when detecting electric leakage current.

10. The trip unit of claim 1, wherein: the bracket (6), the electromagnetic mechanism (2) and the energy storage mechanism are respectively arranged below the circuit board (15).

11. The trip unit of claim 9, wherein: be equipped with on circuit board (15) and be used for dodging through-hole (17) of instruction button (16), be equipped with on slider (5) and be used for promoting two roof (51) of instruction button (16), be equipped with between two roof (51) and dodge groove (52), instruction button (16) slidable mounting is inboard at the sleeve, dodge groove (52) are used for dodging the sleeve.

12. The trip unit of claim 1, wherein: be equipped with fixed axle (61) on support (6), locking piece (4) rotate and set up on fixed axle (61), locking piece (4) are equipped with torsion spring (62) be connected with locking piece (4) on fixed axle (61), torsion spring (62) are used for driving locking piece (4) and rotate, make locking piece (42) be close to slider (5) and rotate, electromagnetic mechanism (2) are used for promoting triggering portion (41), make triggering portion (41) drive locking piece (4) overcome the effort of torsion spring (62) and keep away from slider (5) and rotate.

13. A circuit breaker, characterized in that: further comprising a trip device according to any one of claims 1-12.

14. The circuit breaker of claim 13, wherein: the circuit breaker includes shell (10), is equipped with first looks utmost point (101) and second looks utmost point (102) in shell (10) at least, and trip gear's casing (1) are including setting up first casing (11) and second casing (12) in first looks utmost point (101) top to and set up third casing (13) in second looks utmost point (102) top, first casing (11) and third casing (13) respectively with second casing (12) are connected, trip gear sets up in first casing (11), be equipped with between the side of first casing (11) and the side of third casing (13) and dodge space (14), be equipped with operating device in first looks utmost point (101) top, operating device can be inserted dodge space (14) and reset structure (8) cooperation.