CN218351397U

CN218351397U - Driving device suitable for circuit breaker

Info

Publication number: CN218351397U
Application number: CN202222620710.7U
Authority: CN
Inventors: 王耀; 章信榕; 张鹏宇; 张鹏
Original assignee: Schneider Electric China Co Ltd
Current assignee: Schneider Electric China Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-20
Anticipated expiration: 2032-09-29

Abstract

A driving apparatus for a circuit breaker, the circuit breaker housing of the circuit breaker comprising an upper housing, a middle housing and a lower housing, an operating mechanism and an operating handle of the circuit breaker being accommodated in the middle housing and the lower housing, the operating handle being fixedly connected to the operating mechanism; the driving device comprises a driving motor, a gear transmission mechanism and a handle sliding block which are accommodated in the upper shell; the operating handle is matched in the handle sliding block; the rotation of the driving motor drives the gear transmission mechanism to rotate through gear engagement; the rotation of the gear transmission mechanism drives the handle sliding block to move through gear meshing; the movement of the handle slider drives the movement of the operating handle, and the movement of the operating handle drives the movement of the operating mechanism, so that the circuit breaker can be switched between a switch-on position and a switch-off position.

Description

Driving device suitable for circuit breaker

Technical Field

The present disclosure relates to a driving apparatus suitable for a circuit breaker, which is provided to enable the circuit breaker to be switched between an ON (ON) position and an OFF (OFF) position.

Background

In the prior art, circuit breakers typically include a circuit breaker housing consisting of an upper housing, a middle housing, and a lower housing. An operating mechanism of the circuit breaker is accommodated in the lower case and the middle case, and a driving mechanism for driving the operating mechanism of the circuit breaker is accommodated in the upper case. The operating mechanism enables the circuit breaker to switch between an on position and an off position under the drive of the drive mechanism. The driving mechanism comprises a driving motor, a transmission mechanism and an actuating mechanism which are basically vertically arranged at different heights from top to bottom. The driving motor drives the actuating mechanism to move through the transmission mechanism. Movement of the actuator moves the operating mechanism (e.g., a handle of a circuit breaker).

Based on the composition of the driving mechanism and the arrangement scheme of the driving mechanism relative to the shell of the circuit breaker in the prior art, the problem that the whole height of the whole circuit breaker is too high, so that too much vertical space is occupied exists.

SUMMERY OF THE UTILITY MODEL

In order to solve one or more of the drawbacks of the prior art, according to one aspect of the present disclosure, a driving apparatus for a circuit breaker is provided, the circuit breaker housing of the circuit breaker including an upper housing, a middle housing, and a lower housing, in which an operating mechanism of the circuit breaker and an operating handle are accommodated, the operating handle being fixedly connected to the operating mechanism.

The driving device includes a driving motor, a gear transmission mechanism and a handle slider accommodated in the upper housing.

The operating handle is fitted in the handle slider.

The rotation of the driving motor drives the rotation of the gear transmission mechanism through gear engagement.

The rotation of the gear transmission mechanism drives the handle sliding block to move through gear engagement.

The movement of the handle slider drives the movement of the operating handle, and the movement of the operating handle drives the movement of the operating mechanism, so that the circuit breaker can be switched between a switch-on position and a switch-off position.

According to the above aspect of the present disclosure, the gear transmission mechanism includes a first gear assembly.

The first gear assembly includes a first cylindrical input gear, a first cylindrical output gear, and a first gear assembly link having a common axis of rotation.

The first cylindrical input gear and the first cylindrical output gear are disposed on the first gear assembly link.

The first cylindrical input gear has a pitch diameter greater than the pitch diameter of the first cylindrical output gear.

And an output gear of the driving motor is meshed with the first cylindrical input gear.

According to the above aspects of the present disclosure, the gear transmission mechanism includes a second gear assembly.

The second gear assembly includes a second cylindrical input gear, a second cylindrical output gear, and a second gear assembly link having a common axis of rotation.

The second cylindrical input gear and the second cylindrical output gear are arranged on the second gear assembly connecting rod.

The pitch circle diameter of the second cylindrical input gear is larger than that of the second cylindrical output gear.

The first cylindrical output gear is meshed with the second cylindrical input gear.

According to the above aspects of the present disclosure, the gear transmission mechanism includes a third gear assembly.

The third gear assembly includes a third cylindrical input gear, a third conical output gear, and a third gear assembly link having a common axis of rotation.

The third cylindrical input gear and the third conical output gear are arranged on the third gear assembly connecting rod.

The third cylindrical input gear and the third conical output gear are arranged at intervals.

The second cylindrical output gear is meshed with the third cylindrical input gear.

According to the above aspects of the present disclosure, the gear transmission mechanism includes a fourth gear assembly.

The fourth gear assembly includes a fourth conical input gear, a fourth cylindrical output gear, and a fourth gear assembly link having a common axis of rotation.

The fourth conical input gear and the fourth cylindrical output gear are arranged on the fourth gear assembly connecting rod.

The third conical output gear is meshed with the fourth conical input gear.

According to the above aspects of the present disclosure, the gear transmission mechanism includes a fifth gear assembly.

The fifth gear assembly includes a fifth spur gear and a fifth gear assembly link having a common axis of rotation.

And a fifth cylindrical gear is arranged at one end of the fifth gear assembly connecting rod.

The fourth cylindrical output gear is meshed with the fifth cylindrical gear.

And a manual tool matching part is arranged at the other end of the connecting rod of the fifth gear assembly.

A tool for manually rotating the fifth gear assembly can be fitted in the manual tool fitting portion.

According to the above-described various aspects of the present disclosure, a handle slider rack fitting portion is provided on a side of the handle slider facing the fifth spur gear.

And the fifth cylindrical gear is meshed with the rack matching part of the handle slider, so that the handle slider is driven to move by the rotation of the fifth cylindrical gear.

According to the above aspects of the present disclosure, the upper housing includes an upper housing base and an upper housing top that fits over the upper housing base.

The drive motor, the gear transmission mechanism and the handle slider are disposed in an accommodation space formed by an upper surface of the upper housing base and the upper housing top together.

According to the above aspects of the present disclosure, an upper housing first bracket and an upper housing second bracket are further provided in the accommodation space formed by the upper housing base and the upper housing top together.

The upper housing first bracket is fixedly disposed on the upper housing base by fasteners.

The upper housing second bracket is fixedly disposed on the upper housing first bracket by a fastener.

According to the above aspects of the present disclosure, the upper housing first bracket includes a first bent portion and a second bent portion.

The first bending part is provided with a first bending part opening.

And a second bent part opening communicated with the first bent part opening is arranged on the second bent part.

A second bracket opening aligned with the second bent portion opening is provided on the upper housing second bracket.

The output shaft of the driving motor penetrates through the second bent part and is rotatably supported by the second bent part.

And the two ends of the first gear assembly connecting rod and the two ends of the second gear assembly connecting rod are respectively rotatably supported by the second bending part and the second support of the upper shell.

The output gear of the driving motor, the first cylindrical input gear, the first cylindrical output gear, the second cylindrical input gear and the second cylindrical output gear are all located in a space between the second bending portion and the second support of the upper shell.

The third gear assembly connecting rod is rotatably supported by the second bending part and the upper shell second support.

The third cylindrical input gear is located in a space between the second bending part and the upper shell second support, and the third cylindrical input gear and the third conical output gear are located on two sides of the second bending part respectively.

The fourth gear assembly connecting rod penetrates through the first bending part and is rotatably supported by the first bending part.

The fourth conical input gear and the fourth cylindrical output gear are respectively positioned on two sides of the first bending part.

The fifth gear assembly connecting rod penetrates through the first bending part and is rotatably supported by the first bending part.

The fifth cylindrical input gear and the hand tool matching part are respectively positioned at two sides of the first bending part.

The fourth cylindrical output gear and the fifth cylindrical input gear are both in a space between the first bend and the upper housing base.

According to the above aspects of the present disclosure, a slider through hole is provided on the handle slider.

The operating handle passes through the slider through-hole and is fitted therein.

And the two sides of the handle sliding block are respectively provided with a sliding block guiding groove.

On a section perpendicular to the length direction of the slider guide groove, the slider guide groove is U-shaped.

Two opposite opening edges of the first bending part opening can be in sliding fit in the corresponding sliding block guide grooves, so that the handle sliding block can do linear reciprocating motion along the opening edges through the gear and rack fit between the fifth cylindrical gear and the handle sliding block rack fit part.

According to the above aspects of the present disclosure, slider stoppers are further provided on both sides on the handle slider.

And a microswitch triggering part is also arranged on one side of the handle sliding block.

When the two opposite opening edges of the first bending part opening are in sliding fit in the corresponding slide block guide groove, the slide block stopping part is positioned above the first bending part, and the micro switch triggering part is positioned below the first bending part.

According to the above-described aspects of the present disclosure, the first and second micro switches are provided on the surface of the first bent portion facing the upper housing base.

When the circuit breaker is in when the on position, micro-gap switch trigger part triggers first micro-gap switch, first micro-gap switch to the motor control device of circuit breaker sends first signal, based on received first signal, motor control device control driving motor is only can make the circuit breaker rotates towards the direction of off position motion.

When the circuit breaker is in when the off position, micro-gap switch trigger part triggers second micro-gap switch, second micro-gap switch to the motor control device of circuit breaker sends the second signal, based on the second signal that receives, motor control device control driving motor orientation only can make the circuit breaker rotates towards the direction of on position motion.

According to the above aspects of the present disclosure, an upper housing through hole is provided on the upper housing top.

The hand tool engaging portion is rotatably disposed in and exposed from the upper housing through hole.

According to the above aspects of the disclosure, the first bending portion is provided with first bending portion stopping portions respectively located on two sides of the first bending portion opening.

When the movement of the handle slider causes the circuit breaker to be in the on position, a portion of the handle slider passes through the second bent portion opening and the slider stopper abuts against the second bent portion.

When the movement of the handle slider causes the circuit breaker to be in the off position, the handle slider is away from the second bending portion and the slider stopping portion abuts against the first bending portion stopping portion.

According to the present disclosure, the rotational output of the driving motor acts on the operating handle through the gear transmission mechanism and the linear reciprocating motion of the handle slider to finally drive the operating mechanism of the circuit breaker to move, so that the on-off operation of the circuit breaker is realized. By arranging the driving motor, the gear transmission mechanism and the handle slider in the accommodating space formed by the upper surface of the base of the upper shell and the top of the upper shell together, the height size of the upper shell for accommodating the gear mechanism is obviously reduced, so that the arrangement scheme that the driving motor, the gear transmission mechanism and the actuating mechanism are respectively arranged at different vertical heights in the upper shell in the prior art is avoided, and the defects that the whole height of the circuit breaker is too high and the circuit breaker occupies too much vertical space are overcome.

So that the manner in which the disclosure is made in detail herein can be better understood, and in which the contributions to the art may be better appreciated, the disclosure has been summarized rather broadly. There are, of course, embodiments of the disclosure that will be described below and which will form the subject matter of the claims appended hereto.

As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present disclosure. It is important, therefore, that the appended claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present disclosure.

Drawings

The present disclosure will be better understood and its advantages will become more apparent to those skilled in the art from the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.

Fig. 1 shows a schematic plan view of an external appearance of a circuit breaker in the prior art;

fig. 2 shows an external plan schematic view of a circuit breaker having a drive arrangement according to the present disclosure;

fig. 3 shows an external perspective view of a circuit breaker having a driving apparatus according to the present disclosure;

fig. 4 shows a schematic perspective view of a circuit breaker having a drive arrangement according to the present disclosure, with a portion of the upper housing and upper housing bracket omitted for illustration purposes;

fig. 5 shows a schematic perspective view of a circuit breaker having a drive arrangement according to the present disclosure, wherein the upper housing is omitted for illustration purposes, but showing an upper housing first cradle and an upper housing second cradle;

FIG. 6 shows a perspective view of an upper housing second bracket according to the present disclosure;

FIG. 7 shows a perspective view of an upper housing first bracket and an upper housing second bracket according to the present disclosure;

FIG. 8 illustrates a perspective view of a handle slider according to the present disclosure;

figure 9 shows the provision of a first and second microswitch on the surface of the first fold facing the upper housing base;

fig. 10 shows a schematic perspective view of a circuit breaker with a drive arrangement according to the present disclosure from another perspective, with a portion of the upper housing and the upper housing second cradle omitted for illustration purposes;

figures 11 and 12 show that when the circuit breaker is in said on position, the microswitch actuation part triggers the first microswitch and the slider stop abuts against the second kink;

fig. 13 and 14 show that when the circuit breaker is in said open position, the microswitch actuation part triggers the second microswitch and the slider stop abuts against the first kink stop.

Detailed Description

In the prior art as shown in fig. 1, a circuit breaker 1 generally includes a circuit breaker case composed of an upper case 2, a middle case 3, and a lower case 4. An operating mechanism (not shown) of the circuit breaker is accommodated in the lower case 4 and the middle case 3, and a driving mechanism (not shown) for driving the operating mechanism of the circuit breaker is accommodated in the upper case 2. The operating mechanism enables the circuit breaker to be switched between an on position (the movable contact is in contact with the fixed contact) and an off position (the movable contact is separated from the fixed contact) under the driving of the driving mechanism. The drive mechanism includes a drive motor, a transmission mechanism and an actuator (not shown) arranged substantially vertically from top to bottom at different heights. In the prior art as shown in fig. 1, the upper housing 2 is divided into three parts from top to bottom, namely an upper housing first part 2-1, an upper housing second part 2-2 and an upper housing third part 2-3. The driving motor, the transmission mechanism and the actuating mechanism are respectively arranged in the first part 2-1 of the upper shell, the second part 2-2 of the upper shell and the third part 2-3 of the upper shell. The driving motor drives the actuating mechanism to move through the transmission mechanism. Movement of the actuator moves the operating mechanism (e.g., a handle of a circuit breaker). Based on the above-mentioned construction of the driving mechanism and its arrangement scheme with respect to the circuit breaker housing in the prior art, there is a problem that the overall height of the entire circuit breaker is too high, thereby occupying too much vertical space.

Specific embodiments according to the present disclosure are described below with reference to fig. 2 to 14.

Fig. 2 and 3 show an external plan view schematic and an external perspective view schematic, respectively, of a circuit breaker 5 having a driving apparatus according to the present disclosure.

The circuit breaker housing of the circuit breaker 5 includes an upper housing 6, a middle housing 7, and a lower housing 8, and an operating mechanism and an operating handle (not shown in fig. 2 and 3) of the circuit breaker 5 are accommodated in the middle housing 7 and the lower housing 8, and the operating handle 12 (see fig. 4) is fixedly connected to the operating mechanism (see fig. 5).

As shown in fig. 3, the upper housing 6 includes an upper housing base 6-1 and an upper housing top 6-2 fitted on the upper housing base 6-1.

Fig. 4 shows a schematic perspective view of a circuit breaker 5 with a drive arrangement according to the present disclosure, wherein a part of the upper housing 6 and the upper housing bracket are omitted for illustration purposes.

Fig. 5 shows a schematic perspective view of a circuit breaker 5 with a drive arrangement according to the present disclosure, wherein the upper housing 6 is omitted for illustration purposes, but showing an upper housing first cradle and an upper housing second cradle.

The drive means comprises a drive motor 9, a gear transmission 10 and a handle slider 11 accommodated in the upper housing.

The drive motor 9, the gear transmission 10, and the handle slider 11 are disposed in a receiving space formed by the upper surface of the upper case base 6-1 and the upper case top 6-2.

The operating handle 12 is fitted in the handle slider 11.

The rotation of the driving motor 9 drives the rotation of the gear transmission mechanism 10 through gear engagement.

The rotation of the gear transmission mechanism 10 drives the handle slider 11 to move through gear engagement.

The movement of the handle slider 11 moves the operating handle 12, and the movement of the operating handle 12 moves the operating mechanism 13, so that the circuit breaker 5 can be switched between an on position (shown in fig. 4) and an off position (shown in fig. 5). For the sake of simplicity, the moving and stationary contacts of the circuit breaker are not shown in the various figures. Those skilled in the art will also know how the operating mechanism of the circuit breaker can achieve the contact and separation of the moving contact from the stationary contact.

As shown in fig. 4 and 10, the gear transmission mechanism includes a first gear assembly 13, a second gear assembly 14, a third gear assembly 15, a fourth gear assembly 16, and a fifth gear assembly 17.

The first gear assembly 13 includes a first cylindrical input gear 13-1, a first cylindrical output gear 13-2, and a first gear assembly link 13-3 having a common axis of rotation.

The first cylindrical input gear 13-1 and the first cylindrical output gear 13-2 are disposed on the first gear assembly link 13-3.

The pitch circle diameter of the first cylindrical input gear 13-1 is larger than the pitch circle diameter of the first cylindrical output gear 13-2.

The output gear 9-1 of the drive motor 9 meshes with the first cylindrical input gear 13-1.

The second gear assembly 14 includes a second cylindrical input gear 14-1, a second cylindrical output gear 14-2, and a second gear assembly link 14-3 having a common axis of rotation.

The second cylindrical input gear 14-1 and the second cylindrical output gear 14-2 are disposed on the second gear assembly link 14-3.

The reference circle diameter of the second cylindrical input gear 14-1 is larger than the reference circle diameter of the second cylindrical output gear 14-2.

The first cylindrical output gear 13-2 meshes with the second cylindrical input gear 14-1.

The third gear assembly 15 includes a third cylindrical input gear 15-1, a third conical output gear 15-2, and a third gear assembly link 15-3 having a common axis of rotation.

The third cylindrical input gear 15-1 and the third conical output gear 15-2 are arranged on the third gear assembly connecting rod 15-3.

The third cylindrical input gear 15-1 and the third conical output gear 15-2 are arranged at intervals.

The second cylindrical output gear 14-2 is meshed with the third cylindrical input gear 15-1.

The rotational axis of the output gear 9-1 of the driving motor 9, the rotational axis of the first gear assembly 13, the rotational axis of the second gear assembly 14, and the rotational axis of the third gear assembly 15 are disposed parallel to each other.

The fourth gear assembly 16 includes a fourth conical input gear 16-1, a fourth cylindrical output gear 16-2, and a fourth gear assembly link 16-3 having a common axis of rotation.

The fourth conical input gear 16-1 and the fourth cylindrical output gear 16-2 are disposed on the fourth gear assembly link 16-3.

The third conical output gear 15-2 meshes with the fourth conical input gear 16-1.

The fifth gear assembly 17 includes a fifth spur gear 17-1 and a fifth gear assembly link 17-2 having a common axis of rotation.

A fifth spur gear 17-1 is provided on one end of the fifth gear assembly link 17-2.

The fourth cylindrical output gear 16-2 is meshed with the fifth cylindrical gear 17-1.

A manual tool engagement portion 17-3 is provided on the other end of the fifth gear assembly link 17-2.

A tool (not shown) for manually rotating the fifth gear assembly 17 can be fitted in the manual tool fitting portion 17-3.

The axis of rotation of the fourth gear assembly 16 and the axis of rotation of the fifth gear assembly 17 are arranged parallel to each other. The axis of rotation of said fourth gear assembly 16 is arranged perpendicular to the axis of rotation of said third gear assembly 15.

As shown in fig. 4, the hand tool engaging portion 17-3 is, for example, but not limited to, a hexagonal recess.

Fig. 8 shows a perspective view of a handle slider according to the present disclosure, wherein a slider through hole 11-1 is provided on the handle slider 11.

The operating handle 12 passes through the slider through-hole 11-1 and is fitted therein.

The two sides of the handle sliding block 11 are respectively provided with a sliding block guiding groove 11-2.

The slider guide groove is U-shaped in a cross section perpendicular to the longitudinal direction of the slider guide groove 11-2.

A handle slider rack mating part 17-3 is provided on a side of the handle slider 11 facing the fifth spur gear 17-1.

The fifth cylindrical gear 17-1 is meshed with the rack matching part 17-3 of the handle slide block, so that the handle slide block 11 is driven to move by the rotation of the fifth cylindrical gear 17-1.

The gear transmission acts as a gear reduction mechanism arranged to reduce the rotational speed of the output gear 9-1 of the drive motor 9 to such an extent that the speed of movement of the handle slider is suitable for driving the operating handle.

Fig. 6 shows a perspective view of the upper housing second bracket 19 according to the present disclosure, and fig. 7 shows a perspective view of the upper housing first bracket 18 and the upper housing second bracket 19 according to the present disclosure.

The upper housing first bracket 18 and the upper housing second bracket 19 are disposed in the accommodation space formed by the upper housing base 6-1 and the upper housing top 6-2.

The upper housing first bracket 18 is fixedly disposed on the upper housing base 6-1 by fasteners (not shown).

As shown in fig. 5, the upper housing second bracket 19 is fixedly provided on the upper housing first bracket 18 by a fastener (not shown).

As shown in fig. 7, the upper housing first bracket 18 includes a first bent portion 18-1 and a second bent portion 18-2.

A first bent part opening 18-3 is arranged on the first bent part 18-1.

As shown in fig. 6, a second bent-portion opening 18-4 communicating with the first bent-portion opening 18-3 is provided on the second bent-portion 18-2.

A second bracket opening 19-1 is provided in the upper housing second bracket 19 in alignment with the second bent-over portion opening 18-4.

The output shaft of the driving motor 9 passes through the second bent portion 18-2 and is rotatably supported by the second bent portion 18-2.

Both ends of the first gear assembly connecting rod 13-3 and both ends of the second gear assembly connecting rod 14-3 are rotatably supported by the second bent portion 18-2 and the upper housing second bracket 19, respectively.

The output gear 9-1 of the driving motor 9, the first cylindrical input gear 13-1, the first cylindrical output gear 13-2, the second cylindrical input gear 14-1 and the second cylindrical output gear 14-2 are all located in a space between the second bending portion 18-2 and the upper housing second bracket 19.

The third gear assembly link 15-3 is rotatably supported by the second bent portion 18-2 and the upper housing second bracket 19.

The third cylindrical input gear 15-1 is located in a space between the second bent portion 18-2 and the upper housing second bracket 19, and the third cylindrical input gear 15-1 and the third conical output gear 15-2 are respectively located at two sides of the second bent portion 18-2.

The fourth gear assembly link 16-3 passes through the first bent portion 18-1 and is rotatably supported by the first bent portion 18-1.

The fourth conical input gear 16-1 and the fourth cylindrical output gear 16-2 are respectively located at two sides of the first bending portion 18-1.

The fifth gear assembly link 17-2 passes through the first bent portion 18-1 and is rotatably supported by the first bent portion 18-2.

The fifth cylindrical input gear 17-1 and the hand tool engagement portion 17-3 are located on two sides of the first bending portion 18-1, respectively.

The fourth cylindrical output gear 16-2 and the fifth cylindrical input gear 17-1 are both in the space between the first bend 18-1 and the upper housing base 6-1.

Two opposite opening edges of the first bent-part opening 18-3 can be slidably fitted in the corresponding slider guide grooves 11-2, so that the handle slider 11 can make a linear reciprocating motion along the opening edges through the rack-and-pinion fit between the fifth cylindrical input gear 18-1 and the handle slider rack fitting part 11-3.

As shown in fig. 8, slider stoppers 11-4 are also provided on both sides of the handle slider 11.

A microswitch triggering part 11-5 is also arranged on one side of the handle sliding block 11.

When two opposite opening edges of the first-bent-portion opening 18-3 are in sliding fit in the corresponding slider guide groove 11-2, the slider stopper portion 11-4 is located above the first-bent portion 18-1, and the microswitch triggering portion 11-5 is located below the first-bent portion 18-1.

As shown in fig. 9, a first microswitch 20 and a second microswitch 21 are provided on the surface of the first bent portion 18-1 facing the upper housing base 6-1.

As shown in fig. 11 and 12, when the circuit breaker 5 is in the on position, the microswitch triggering part 11-5 triggers the first microswitch 20, the first microswitch 20 sends a first signal to a motor control device (not shown) of the circuit breaker 5, and based on the received first signal, the motor control device controls the driving motor 9 to rotate in a direction that can only move the circuit breaker 5 toward the off position.

As shown in fig. 13 and 14, when the circuit breaker 5 is in the off position, the microswitch actuation part 11-5 actuates the second microswitch 21, the second microswitch 21 sends a second signal to a motor control device (not shown) of the circuit breaker 5, and based on the received second signal, the motor control device controls the drive motor 9 to rotate in a direction that can only move the circuit breaker 5 toward the on position.

An upper shell through hole 6-2-1 is arranged on the upper shell top 6-2.

The hand tool engaging portion 17-3 is rotatably disposed in the upper housing through hole 6-2-1 and is exposed from the upper housing through hole 6-2-1.

The first bending part 18-1 is provided with first bending part stopping parts 18-5 respectively positioned on two sides of the first bending part opening 18-3.

When the movement of the handle slider 11 causes the circuit breaker 5 to be in the on position (as shown in fig. 11 and 12), a portion of the handle slider 11 passes through the second bent-part opening 18-4, the second bracket opening 19-1 (not shown) and the slider stopper 11-4 abuts against the second bent-part 18-2.

When the movement of the handle slider 11 causes the circuit breaker 5 to be in the open position (as shown in fig. 13 and 14), the handle slider 11 is away from the second bent portion 18-2 and the slider stopper 11-4 abuts against the first bent portion stopper 18-5.

The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the embodiments.

Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the various embodiments. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may be directly dependent on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.

Claims

1. A driving apparatus for a circuit breaker, the circuit breaker housing of the circuit breaker comprising an upper housing, a middle housing and a lower housing, an operating mechanism and an operating handle of the circuit breaker being accommodated in the middle housing and the lower housing, the operating handle being fixedly connected to the operating mechanism;

it is characterized in that the preparation method is characterized in that,

the driving device comprises a driving motor, a gear transmission mechanism and a handle sliding block which are accommodated in the upper shell;

the operating handle is matched in the handle sliding block;

the rotation of the driving motor drives the gear transmission mechanism to rotate through gear engagement;

the rotation of the gear transmission mechanism drives the handle sliding block to move through gear engagement;

2. Drive arrangement according to claim 1, characterized in that

The gear transmission mechanism comprises a first gear assembly;

the first gear assembly includes a first cylindrical input gear, a first cylindrical output gear, and a first gear assembly link having a common axis of rotation;

the first cylindrical input gear and the first cylindrical output gear are arranged on the first gear assembly connecting rod;

the pitch circle diameter of the first cylindrical input gear is larger than that of the first cylindrical output gear;

3. Drive arrangement according to claim 2, characterized in that

The gear transmission mechanism comprises a second gear assembly;

the second gear assembly comprises a second cylindrical input gear, a second cylindrical output gear and a second gear assembly connecting rod which have a common rotation axis;

the second cylindrical input gear and the second cylindrical output gear are arranged on the second gear assembly connecting rod;

the reference circle diameter of the second cylindrical input gear is larger than that of the second cylindrical output gear;

4. A drive arrangement as claimed in claim 3, characterized in that

The gear transmission mechanism comprises a third gear assembly;

the third gear assembly comprises a third cylindrical input gear, a third conical output gear and a third gear assembly connecting rod which have a common rotation axis;

the third cylindrical input gear and the third conical output gear are arranged on the third gear assembly connecting rod;

the third cylindrical input gear and the third conical output gear are arranged at intervals;

the second cylindrical output gear is engaged with the third cylindrical input gear.

5. Drive arrangement according to claim 4, characterized in that

The gear transmission mechanism comprises a fourth gear assembly;

the fourth gear assembly comprises a fourth conical input gear, a fourth cylindrical output gear and a fourth gear assembly connecting rod which have a common rotation axis;

the fourth conical input gear and the fourth cylindrical output gear are arranged on the fourth gear assembly connecting rod;

the third conical output gear is meshed with the fourth conical input gear.

6. Drive arrangement according to claim 5, characterized in that

The gear transmission mechanism comprises a fifth gear assembly;

the fifth gear assembly includes a fifth spur gear and a fifth gear assembly link having a common rotational axis;

a fifth cylindrical gear provided on one end of the fifth gear assembly link;

the fourth cylindrical output gear is meshed with the fifth cylindrical gear;

a manual tool matching part is arranged at the other end of the fifth gear assembly connecting rod;

7. Drive arrangement according to claim 6, characterized in that

A handle slider rack matching part is arranged on one side of the handle slider, which faces the fifth cylindrical gear;

the fifth cylindrical gear is meshed with the rack matching part of the handle sliding block, so that the handle sliding block is driven to move by the rotation of the fifth cylindrical gear.

8. Drive arrangement according to claim 7, characterized in that

The upper housing includes an upper housing base and an upper housing top that fits over the upper housing base;

9. Drive arrangement according to claim 8, characterized in that

An upper shell first bracket and an upper shell second bracket are arranged in an accommodating space formed by the upper shell base and the upper shell top together;

the upper housing first bracket is fixedly disposed on the upper housing base by a fastener;

10. Drive arrangement according to claim 9, characterized in that

The upper shell first support comprises a first bending part and a second bending part;

a first bent part opening is arranged on the first bent part;

a second bent part opening communicated with the first bent part opening is formed in the second bent part;

a second bracket opening aligned with the second bent part opening is arranged on the upper shell second bracket;

an output shaft of the driving motor penetrates through the second bent part and is rotatably supported by the second bent part;

two ends of the first gear assembly connecting rod and two ends of the second gear assembly connecting rod are respectively rotatably supported by the second bending part and the second support of the upper shell;

an output gear of the driving motor, the first cylindrical input gear, the first cylindrical output gear, the second cylindrical input gear and the second cylindrical output gear are all positioned in a space between the second bending part and the second support of the upper shell;

the third gear assembly connecting rod is rotatably supported by the second bending part and the second bracket of the upper shell;

the third cylindrical input gear is positioned in a space between the second bending part and the second support of the upper shell, and the third cylindrical input gear and the third conical output gear are respectively positioned at two sides of the second bending part;

the fourth gear assembly connecting rod penetrates through the first bent part and is rotatably supported by the first bent part;

the fourth conical input gear and the fourth cylindrical output gear are respectively positioned at two sides of the first bending part;

the fifth gear assembly connecting rod penetrates through the first bending part and is rotatably supported by the first bending part;

the fifth cylindrical input gear and the manual tool matching part are respectively positioned at two sides of the first bending part;

11. Drive arrangement according to claim 10, characterized in that

A slider through hole is formed in the handle slider;

the operating handle penetrates through the slide block through hole and is matched in the slide block through hole;

the two sides of the handle sliding block are respectively provided with a sliding block guiding groove;

on a section perpendicular to the length direction of the slide block guide groove, the slide block guide groove is U-shaped;

two opposite opening edges of the first bending part opening can be in sliding fit in the corresponding slider guide grooves, so that the handle slider can do linear reciprocating motion along the opening edges through the gear and rack fit between the fifth cylindrical gear and the handle slider rack fit part.

12. Drive arrangement according to claim 11, characterized in that

The two sides of the handle sliding block are also provided with sliding block stopping parts;

a microswitch triggering part is also arranged on one side of the handle sliding block;

when the two opposite opening edges of the first bending part opening are in sliding fit in the corresponding slider guide groove, the slider stopping part is located above the first bending part, and the microswitch triggering part is located below the first bending part.

13. Drive arrangement according to claim 12, characterized in that

Providing a first microswitch and a second microswitch on a surface of the first bend portion facing the upper housing base;

when the circuit breaker is located at the on position, the micro switch trigger part triggers the first micro switch, the first micro switch sends a first signal to a motor control device of the circuit breaker, and based on the received first signal, the motor control device controls the driving motor to rotate in a direction which only enables the circuit breaker to move towards the off position;

14. Drive arrangement according to claim 8, characterized in that

An upper shell through hole is formed in the top of the upper shell;

15. Drive arrangement according to claim 13, characterized in that

The first bending part is provided with first bending part stopping parts which are respectively positioned on two sides of the opening of the first bending part;

when the movement of the handle slider causes the circuit breaker to be in the on position, a portion of the handle slider passes through the second bent portion opening and the slider stop abuts against the second bent portion;