Sliding module of electric operating mechanism and electric operating mechanism

Abstract

The utility model relates to a sliding module of an electric operating mechanism and the electric operating mechanism, comprising a housing, and a driving module and a sliding module which are arranged in the housing, the driving module and the sliding module are arranged in a relatively parallel manner, the driving module comprises a motor, a gear set and a transmission disc, the motor transmits kinetic energy to the sliding module through the gear sets and the transmission disc in sequence, and the gear sets are meshed in the X-axis direction and arranged in a multi-layer increasing stepped mode in the Z-axis direction. The internal space of the electric operating mechanism is reasonably utilized, the size of the turntable is reduced, and the boundary dimension of the electric operating mechanism is further reduced. In addition, the stroke amplification mechanism can reduce the output torque of the turntable, so that the service life of the electric operating mechanism is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, and more specifically, to a sliding module and an electric operating mechanism. Background Technology

[0002] Circuit breakers, as electrical distribution devices, are capable of connecting, carrying, and disconnecting the main circuit current, playing a vital role in power generation, transmission, distribution, and supply. Electric operating mechanisms, as specialized accessories for circuit breakers, enable remote electric closing, opening, and re-closing of circuit breakers to achieve centralized and automatic control of the power transmission and distribution network, making circuit breaker switching more reliable, less labor-intensive, and safer.

[0003] The existing electric operating mechanism has an unreasonable structural design, suffering from defects such as complex structure, unreliable performance, and short service life. Currently, the sliding module of the electric operating mechanism includes a turntable, a slider, and a guide rail. The turntable is directly linked to the slider via an output shaft on its circumference. The slider is slidably mounted on the guide rail, and the turntable's rotation drives the slider to reciprocate along the guide rail. To ensure sufficient stroke for the slider, the diameter of the turntable is usually increased, allowing the drive shaft on the turntable's circumference to obtain a sufficiently large radius of motion to guarantee the slider completes the required stroke. However, the large turntable diameter prevents the size of the electric operating mechanism from being reduced, resulting in wasted internal space. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a simplified structure, convenient operation, and a solution to the problem of the large size of existing electric operating mechanisms.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An electric operating mechanism includes a housing, a drive module and a sliding module disposed within the housing, wherein the drive module and the sliding module are arranged parallel to each other. The drive module includes a motor, a gear set and a transmission disk. The motor transmits kinetic energy to the sliding module sequentially through the gear set and the transmission disk. The sliding module includes a turntable, a stroke amplification mechanism, a slider and a guide rail. The slider is slidably disposed on the guide rail. The turntable is connected to the slider through the stroke amplification mechanism. The turntable drives the slider to reciprocate along the X-axis direction through the stroke amplification mechanism.

[0007] Furthermore, the stroke amplification mechanism includes a first lever and a second lever. One end of the second lever is fixed, and the other end is movably connected to the slider. One end of the first lever is rotatably connected to the turntable, and the other end is linked to the slider through the second lever.

[0008] Furthermore, the second lever includes a fixed end, an action part, and a drive end. The second lever rotates back and forth about the fixed end. The straight-line distance between the action part and the fixed end is less than the straight-line distance between the drive end and the fixed end.

[0009] Furthermore, the fixed end is located at one end of the second lever, the second lever rotates back and forth around the fixed end, the driving end is located at the other end of the second lever and is movably connected to the slider, and the actuating part is located between the fixed end and the driving end.

[0010] Furthermore, the fixed end, the actuating part, and the driving end are located on a straight line, and the three together constitute the second lever with a strip-shaped structure.

[0011] Furthermore, the fixed end, the actuating part, and the driving end are not on a straight line, and the three together form the second lever with a herringbone structure.

[0012] Furthermore, the slider includes a sliding body and an input slot. The sliding body is slidably disposed on the guide rail, and the input slot cooperates with the drive end.

[0013] Furthermore, the input slot is located at the top of the slider along the Z-axis direction.

[0014] Furthermore, the slider also includes an output slot located at the bottom of the slider along the Z-axis.

[0015] The sliding module of this utility model's electric operating mechanism utilizes a stroke amplification mechanism between the turntable and the slider, making efficient use of the internal space of the electric operating mechanism, reducing the size of the turntable, and thus reducing the overall size of the electric operating mechanism. Furthermore, the stroke amplification mechanism reduces the output torque of the turntable, significantly extending the lifespan of the electric operating mechanism. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the external structure of the electric operating mechanism of the present invention;

[0017] Figure 2 This is a planar sectional view of the entire electric operating mechanism of the present invention along the XZ plane;

[0018] Figure 3 This is a three-dimensional sectional view of the entire electric operating mechanism of the present invention;

[0019] Figure 4 This is a planar schematic diagram of the internal structure of the electric operating mechanism of the present invention along the XZ plane;

[0020] Figure 5This is a three-dimensional schematic diagram of the internal structure of the electric operating mechanism of the present invention. Figure 1 ;

[0021] Figure 6 This is a three-dimensional schematic diagram of the internal structure of the electric operating mechanism of the present invention. Figure 2 ;

[0022] Figure 7 This is a plan view of the drive module of the electric operating mechanism of the present invention;

[0023] Figure 8 This is a planar sectional view along the YZ plane of the internal structure of the electric operating mechanism of the present invention;

[0024] Figure 9 This is a planar schematic diagram of the sliding module of the electric operating mechanism of the present invention along the XZ plane. Figure 1 ;

[0025] Figure 10 This is a planar schematic diagram of the sliding module of the electric operating mechanism of the present invention along the XY plane;

[0026] Figure 11 This is a planar schematic diagram of the sliding module of the electric operating mechanism of the present invention along the XZ plane. Figure 2 . Detailed Implementation

[0027] like Figure 1 , 2 As shown, an electric operating mechanism includes a mechanism housing 1, a drive module 2, a sliding module 3, a control circuit board 4, a terminal block 5, a locking structure 6, and a handle 7.

[0028] The drive module 2, the sliding module 3, and the control circuit board 4 are disposed inside the mechanism housing 1; the locking structure 6 and the handle 7 are respectively inserted into the mechanism housing 1 and can extend to the outside of the mechanism housing 1; the wiring terminal 5 is disposed on the outside of the mechanism housing 1.

[0029] like Figure 2-4 As shown, the housing 1 of the mechanism includes a base 11, a middle cover 12, a bracket 13, and an upper cover 14. The base 11, the middle cover 12, and the upper cover 14 are made of plastic and provide insulation and protection for the entire machine; the bracket 13 is made of metal and provides support and fixation for the transmission structure.

[0030] The base 11 is provided with a plurality of mounting holes for fixed connection with the circuit breaker, and operating holes for operation with the circuit breaker.

[0031] The middle cover 12 is fixed above the base 11 along the Z-axis direction. The middle cover 12 includes a first chamber 121 and a second chamber 122 arranged vertically along the Z-axis direction, and a third chamber 123 and a fourth chamber 124 arranged on the same side along the Y-axis direction. The third chamber 123 and the fourth chamber 124 are arranged adjacent to each other in the X-axis direction.

[0032] The bracket 13 is arranged in an inverted U-shape in the second chamber 122. The bracket 13 has U-shaped arms on both sides, and the extended and bent sections of these U-shaped arms are fixed to the base 11. The cavity wall of the second chamber 122 abuts against and encloses the bracket 13, providing insulation and protection for the bracket 13. The drive module 2 and the sliding module 3 are disposed within the U-shaped cavity of the bracket 13. The bracket 13 and the base 11 limit and fix the drive module 2 and the sliding module 3. A portion of the drive module 2 passes through the bracket 13 and the second chamber 122 into the first chamber 121, effectively utilizing the internal space of the electric operating mechanism and making the electric operating mechanism more compact.

[0033] The upper cover 14 is positioned above the middle cover 12 along the Z-axis direction, forming a cavity space with the first chamber 121.

[0034] like Figure 2 , 5 As shown in Figure 6, the drive module 2 and the sliding module 3 are disposed in the cavity space formed by the base 11 and the bracket 13. The drive module 2 is located in front of the sliding module 3 along the Y-axis. The drive module 2 transmits kinetic energy first in the X-axis direction and then turns to the Y-axis direction. After acquiring kinetic energy, the sliding module 3 reciprocates along the X-axis direction. The drive module 2 and the sliding module 3 are arranged relatively parallel to each other along the X-axis, which effectively utilizes the internal space of the electric operating mechanism. At the same time, the unidirectional kinetic energy transmission can efficiently reduce friction during the cooperation process, effectively improving the service life of the electric operating mechanism.

[0035] The control circuit board 4 is disposed in the cavity space formed by the first chamber 121 and the upper cover 14. During the movement of the drive module 2 and the sliding module 3, the micro switch on the control circuit board 4 can be triggered to form a key position signal.

[0036] The terminal block 5 is located on the outside of the side wall of the first chamber 121. The terminal block 5 is electrically connected to the control circuit board and can transmit the position signal of the electric operating mechanism to the outside.

[0037] The locking structure 6 is inserted into the third chamber 123 and extends into the second chamber 122, and is used to lock the electric operating mechanism in the open position.

[0038] The handle 7 is inserted into the fourth chamber 124 and is used to manually drive the sliding module 3 to reciprocate along the X-axis.

[0039] like Figure 3 , 5 As shown in Figure 8, the drive module 2 includes a motor 21, a gear set 22, a transmission disc 23, and an operating lever 24.

[0040] like Figure 3 , 6 As shown in Figure 7, the motor 21 transmits kinetic energy to the sliding module 3 sequentially through the gear set 22 and the transmission disk 23. The handle 7 can also transmit kinetic energy directly to the sliding module 3 through the operating lever 24. Both the motor 21 and the gear set 22 transmit kinetic energy along the X-axis, while the gear set 22 transmits kinetic energy along the Y-axis through the transmission disk 23 to the operating lever 24. The gear set 22 and the transmission disk 23 not only expand the transmitted kinetic energy but also achieve unidirectional kinetic energy transmission, which can efficiently reduce friction and efficiently transmit kinetic energy.

[0041] The motor 21 is inverted and mounted on the bracket 13. The motor 21 includes a body 211 and an output gear 212. The body 211 and the output gear 212 are arranged parallel to the Z-axis direction, with the output gear 212 located below the body 21 along the Z-axis. The output gear 212 meshes with the gear set 22, and the body 211 passes through the bracket 13 and the second chamber 122 into the first chamber 121. A power cord is located at the top of the body 211 along the Z-axis, which can be easily connected to the control circuit board 4. The control circuit board 4 can control the motor 21 to operate in two states: working and not working. The inverted mounting of the motor 21 not only makes reasonable and effective use of the internal space of the electric operating mechanism, reducing its size and making it more compact, but also reduces the wiring distance of the internal power cord, lowering power cord costs and facilitating installation.

[0042] like Figure 5-8 As shown, the gear set 22 has a stepped increasing region. The gear set 22 is arranged in a meshing pattern along the X-axis in the stepped increasing region, and is also arranged in a multi-step or multi-layered stepped pattern along the Z-axis. The regular arrangement of gears can effectively reduce the friction surface of the gear meshing and effectively improve the service life of the electric operating mechanism.

[0043] The gear set 22 includes a first gear 221, a second gear 222, a third gear 223, a fourth gear 224, a fifth gear 225, a first shaft 226, a second shaft 227, and a third shaft 228. The first gear 221, the second gear 222, the third gear 223, the fourth gear 224, and the fifth gear 225 are all integral double-layer coaxial gear structures with one large and one small gear. The large gear is the input gear, and the small gear is the output gear. Adjacent gears mesh with each other via their own large gear and the adjacent small gear, forming a gear reduction structure.

[0044] The output gear 212 meshes with the large gear of the first gear 221 at the same level along the X-axis. The small gear of the first gear 221 meshes with the large gear of the second gear 222 at the same level along the X-axis. The small gear of the second gear 222 meshes with the large gear of the third gear 223 at the same level along the X-axis. The small gear of the third gear 223 meshes with the large gear of the fourth gear 224 at the same level along the X-axis. The small gear of the fourth gear 224 meshes with the large gear of the fifth gear 225 at the same level along the X-axis. The small gear of the fifth gear 225 meshes with the transmission disk 23 at the same level along the Y-axis. The first gear 221, the second gear 222, the third gear 223, the fourth gear 224, and the fifth gear 225 form a stepped climbing area, transmitting kinetic energy through a layered climbing arrangement.

[0045] The first gear 221, the second gear 222, and the third gear 223 are meshed along the positive X-axis and arranged in a stepped, incremental manner along the Z-axis. The second gear 222, the third gear 223, the fourth gear 224, and the fifth gear 225 mesh alternately in both the positive and negative X-axis directions and are arranged in a stepped, incremental manner along the Z-axis. The fourth gear 224 is located directly above the second gear 222 along the Z-axis, and the fifth gear 225 is located directly above the third gear 223 along the Z-axis. This stepped, incremental arrangement efficiently transmits kinetic energy, stably reduces speed, and reliably and effectively improves the service life of the electric operating mechanism.

[0046] The first gear 221 is rotatably fixed on the first shaft 226, the second gear 222 and the fourth gear 224 are coaxially rotatably fixed on the second shaft 227, and the third gear 223 and the fifth gear 225 are coaxially rotatably fixed on the third shaft 228. The gear set 22 is fixed in the stepped climbing area by the coaxial fixation of multiple gears, which reduces the meshing clearance between gears and increases the stability of the meshing between gears.

[0047] The first gear 221, the second gear 222, the third gear 223, the fourth gear 224, and the fifth gear 225 can all use gear structures of the same size, which can reduce mold investment, reduce the number of parts, and reduce production and operating costs. Alternatively, the first gear 221, the second gear 222, the third gear 223, the fourth gear 224, and the fifth gear 225 can also use gear structures of different sizes to obtain stable kinetic energy according to user requirements.

[0048] like Figure 4-8 As shown, the transmission disk 23 is a single-layer gear structure located in the Y-axis direction of the gear set 22. The transmission disk 23 has a toothed structure around its periphery that meshes with the gear set 22; the center of the transmission disk 23 has an annular ratchet structure, which, when fitted onto the operating lever 24, can drive the operating lever 24 to rotate synchronously in one direction. The transmission disk 23 can be integrally formed with the operating lever 24. When the handle 7 acts on the operating lever 24 and drives it to continue rotating in the same direction, the ratchet structure of the transmission disk 23 has a forward clutch function, preventing the operating lever 24 from driving the transmission disk 23 to continue rotating in the same direction. The transmission disk 23 serves as a transition and clutch function for the reversal and transfer of kinetic energy from the drive module 2.

[0049] like Figure 3-6As shown in Figure 8, the operating lever 24 includes an operating part 241, a rotating shaft part 242, and a pin part 243. The operating part 241 is sleeved on one end of the rotating shaft part 242 and is located directly above the rotating shaft part 242 along the Z-axis. The operating part 241 is located in the first chamber 121, and the upper cover 14 is provided with a corresponding through hole. The handle 7 passes through the through hole and is inserted into the operating part 241 in the first chamber 121 for manual operation. For user convenience, the circuit breaker can be manually operated to open or close at any time during a power outage to maintain the safety of the power distribution line. The pin part 243 is located in the second chamber 122 and is inserted into the middle shaft of the rotating shaft part 242. One end of the pin part 243 abuts against the rotating shaft part 242 with a compression spring. Under the action of the compression spring, the other end of the pin part 243 extends outside the shaft of the rotating shaft part 242. The rotating shaft 242 passes through the first chamber 121 and the second chamber 122. The transmission disk 23 is sleeved on the middle of the rotating shaft 242 and abuts against the other end of the ejector pin 243. The other end of the ejector pin 243 and the ratchet structure at the center of the transmission disk 23 ensure that the transmission disk 23 can only drive the operating rod 24 to rotate in one direction, and there is a clutch engagement between the transmission disk 23 and the operating rod 24. The bottom of the rotating shaft 242 along the Z-axis is synchronously linked with the sliding module 3, and the sliding module 3 is located below the operating rod 24 along the Z-axis.

[0050] The motor 21 transmits kinetic energy to the sliding module 3 via the first gear 221, the second gear 222, the third gear 223, the fourth gear 224, the fifth gear 225, and the transmission disk 23 in sequence, and finally via the operating lever 24.

[0051] The operating lever 24 is coaxially arranged with the transmission disk 23 and is located above the transmission disk 23 along the Z-axis. The operating lever 24 can drive the transmission disk 23 to rotate synchronously and can also drive the sliding module 3 to move.

[0052] like Figure 5 , 8 -10, the sliding module 3 is located below the transmission disk 23 along the Z-axis direction. The sliding module 3 includes a turntable 31, a stroke amplification mechanism, a slider 34, a guide rail 35, and a spring 36. The stroke amplification mechanism includes a first lever 32 and a second lever 33.

[0053] The turntable 31 is fixed to the lowest end of the rotating shaft 242 along the Z-axis and rotates synchronously and in the same direction as the operating lever 24. The turntable 31 includes a central hole 311 and a rotating shaft 312. The central hole 311 can be a polygonal hole or an oblong hole. The central hole 311 is fitted and fixed to the bottom of the rotating shaft 242 along the Z-axis. The rotating shaft 312 is located at the end of the rotating circumference of the turntable 31 and rotates around the Z-axis as the center of rotation, following the rotation of the central hole 311.

[0054] The first lever 32 is a strip-shaped structure, with one end rotatably fixed to the rotating shaft 312 and the other end rotatably fixed to the second lever 33. A through hole is provided in the middle for fixing one end of the spring 36. The first lever 32 follows the rotation of the rotating shaft 312 and makes a small reciprocating motion along the X-axis.

[0055] The second lever 33 is a strip-shaped or herringbone-shaped structure, including a fixed end 331, an action part 332, and a drive end 333. The fixed end 331 is located at one end of the second lever 33 and is fixed to the bracket 13 and the base 11 by a pivot. The second lever 33 rotates back and forth along the X-axis with the fixed end 331 as the center. The action part 332 is located in the middle of the second lever 33, and the first lever 32 is rotatably fixed to the action part 332. The drive end 333 is located at the other end of the second lever 33, and a pivot is provided on the drive end 333 for cooperating with the slider 34.

[0056] The first lever 32 acts on the middle of the second lever 33, causing the second lever 33 to rotate around the fixed end 331 as the rotation center, and driving the driving end 333 to reciprocate with an increased amplitude along the X-axis, thus increasing the stroke. Simultaneously, by using a multi-link design to easily amplify the stroke, the size of the electric operating mechanism can be further reduced.

[0057] The fixed end 331, the actuating part 332, and the driving end 333 can be located on a straight line to form the second lever 33 with a strip-shaped structure.

[0058] The fixed end 331, the actuating part 332, and the driving end 333 may not be on a straight line, forming a herringbone structure of the second lever 33.

[0059] The slider 34 includes a sliding body 341, an input groove 342, and an output groove 343. The sliding body 341 has a guide groove along the X-axis that is adapted to the guide rail 35, allowing the slider 34 to slide flexibly back and forth along the X-axis. The input groove 342 is located at the top of the slider 34 along the Z-axis and is used to cooperate with the drive end 333. When the drive end 333 moves back and forth along the X-axis, it acts on the groove wall of the input groove 342, thereby giving the slider 34 a power along the X-axis. The output groove 343 is located at the bottom of the slider 34 along the Z-axis and is used for the power output of the electric operating mechanism. It is generally used in conjunction with the operating handle of the circuit breaker to drive the operating handle to move back and forth, thereby driving the circuit breaker to close or open.

[0060] The guide rail 35 is disposed on the U-shaped cavity wall of the bracket 13 along the X-axis direction, and at least two guide rails are disposed parallel to each other along the X-axis direction to increase the motion stability of the slider 34.

[0061] The spring 36, whether a tension spring or a compression spring, is used to drive the first lever 32 back to its initial state without external force, restricting the movement of the first lever 32. This ensures that the components of the sliding module 3 remain relatively stationary, preventing collisions between internal components due to minor external vibrations, thus protecting the components. The spring 36 also provides a force for the first lever 32 to return to its initial position, preventing the first lever 32 from causing other components of the sliding rod module 3 to sway back and forth within the electric operating mechanism.

[0062] The turntable 31 drives the slider 34 to reciprocate along the X-axis on the guide rail 35 via the first lever 32 and the second lever 33.

[0063] The turntable 31 is coaxially arranged with the transmission disc 23 and the operating part 241 and rotates synchronously. That is, the motor 21 or the handle 7 can drive the sliding module 3 to move, so as to realize electric operation or manual operation.

[0064] The first lever 32 moves back and forth along the X-axis under the rotation of the turntable 31, and then acts on the middle of the second lever 33. The movement stroke is amplified by the bearing at the end of the second lever 33, and further acts on the movable groove of the slider 34, finally driving the slider 34 to move back and forth along the X-axis along the guide rail 35.

[0065] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A sliding module of an electric operating mechanism, comprising a turntable (31), a stroke amplification mechanism, a slider (34), and a guide rail (35), wherein the slider (34) is slidably disposed on the guide rail (35), characterized in that: The turntable (31) is connected to the slider (34) through the stroke amplification mechanism, and the turntable (31) drives the slider (34) to reciprocate along the X-axis direction through the stroke amplification mechanism.

2. The sliding module of the electric operating mechanism according to claim 1, characterized in that: The stroke amplification mechanism includes a first lever (32) and a second lever (33). One end of the second lever (33) is fixed and the other end is movably connected to the slider (34). One end of the first lever (32) is rotatably connected to the turntable (31) and the other end is linked to the slider (34) through the second lever (33).

3. The sliding module of the electric operating mechanism according to claim 2, characterized in that: The second lever (33) includes a fixed end (331), an action part (332), and a drive end (333). The second lever (33) rotates back and forth around the fixed end (331). The straight-line distance between the action part (332) and the fixed end (331) is less than the straight-line distance between the drive end (333) and the fixed end (331).

4. The sliding module of the electric operating mechanism according to claim 3, characterized in that: The fixed end (331) is located at one end of the second lever (33), the second lever (33) rotates back and forth around the fixed end (331), the driving end (333) is located at the other end of the second lever (33) and is movably connected to the slider (34), and the actuating part (332) is located between the fixed end (331) and the driving end (333).

5. A sliding module according to claim 3, characterized in that: The fixed end (331), the actuating part (332), and the driving end (333) are located on a straight line, and the three constitute the second lever (33) with a strip structure.

6. The sliding module of the electric operating mechanism according to claim 3, characterized in that: The fixed end (331), the actuating part (332), and the driving end (333) are not on a straight line, and the three together form the second lever (33) with a herringbone structure.

7. The sliding module of the electric operating mechanism according to claim 3, characterized in that: The slider (34) includes a sliding body (341) and an input slot (342). The sliding body (341) is slidably disposed on the guide rail (35), and the input slot (342) cooperates with the drive end (333).

8. The sliding module of an electric operating mechanism according to claim 7, characterized in that: The input slot (342) is located at the top of the slider (34) along the Z-axis direction.

9. The sliding module of an electric operating mechanism according to claim 7, characterized in that: The slider also includes an output slot (343), which is located at the bottom of the slider (34) along the Z-axis.

10. An electrically operated mechanism, characterized in that: Includes a sliding module of an electric operating mechanism as described in any one of claims 1-9.

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