Electric operating mechanism for circuit breaker

Abstract

The utility model relates to an electric operating mechanism for a circuit breaker, which comprises a base, a middle plate, a motor, a gear set, a manual gear, a sliding block gear and a sliding block, the motor and the gear set are arranged in the base, the middle plate is arranged above the base, the manual gear, the sliding block gear and the sliding block are arranged above the middle plate, the motor is in linkage connection with the input end of the gear set, and the sliding block is arranged in the middle plate. The manual gear is in linkage connection with the output end of the gear set, the sliding block gear is in meshing linkage with the manual gear, a sliding block groove is formed in the middle plate, a limiting block is formed below the sliding block and penetrates through the sliding block groove of the middle plate to slide, the sliding block is in linkage connection with the sliding block gear, and a handle linkage groove used for being connected with a circuit breaker handle is formed in the sliding block. According to the utility model, an integrated structure is adopted, the detachable assembly with the circuit breaker is realized, the production cost and the inventory pressure are reduced, the replacement is convenient, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a circuit breaker component, in particular to an electric operating mechanism for a circuit breaker. Background Art

[0002] With the construction of the smart Internet of Things, more and more smart circuit breakers with automatic opening and closing capabilities are needed. This requires adding electric operating mechanisms to the existing circuit breakers. However, the electric operating mechanisms of existing circuit breakers are highly customized and manufactured together with the circuit breaker body. In the current power grid, there are still some occasions that do not require remote closing capabilities. Therefore, each low-voltage electrical switch manufacturer needs to produce two types of smart circuit breakers, which requires multiple sets of molds and two assembly lines for manufacturing, resulting in an increase in finished products and heavy inventory pressure. Summary of the invention

[0003] In view of the above-mentioned deficiencies, the utility model provides an electric operating mechanism for a circuit breaker, which adopts an integrated structure to achieve detachable assembly with the circuit breaker, thereby reducing production costs and inventory pressure, and is easy to replace and reduces maintenance costs.

[0004] In order to achieve the above purpose, the utility model adopts an electric operating mechanism for a circuit breaker, including a base, a middle plate, a motor, a gear set, a manual gear, a slider gear, and a slider. The motor and the gear set are arranged in the base, the middle plate is arranged above the base, the manual gear, the slider gear and the slider are arranged above the middle plate, the motor is linked to the input end of the gear set, the manual gear is linked to the output end of the gear set, the slider gear is meshed and linked with the manual gear, a slider groove is formed on the middle plate, a limit block is formed below the slider and penetrates into the slider groove of the middle plate and slides, the slider is linked to the slider gear, and a handle linkage groove for connecting the circuit breaker handle is formed on the slider.

[0005] The utility model is further configured such that the electric operating mechanism also includes an upper plate, a circular slider gear hole is formed on the upper plate, a circular limit block is formed on the upper side of the slider gear and passes through the slider gear hole, an indicator piece with a diameter larger than the slider gear hole is provided above the upper plate, the indicator piece is connected to the slider gear, and the slider gear is limited to rotate below the upper plate.

[0006] The utility model is further configured to form a slider linkage groove on the slider, and a slider gear is provided with a linkage rod extending downward at an eccentric position, and the linkage rod is inserted into the slider linkage groove to push the slider to slide along the slider groove.

[0007] The utility model is further configured to form a motor cavity and a gear cavity in the base, a worm hole is provided between the motor cavity and the gear cavity, the motor is arranged in the motor cavity, the gear set is arranged in the gear box, and a worm is provided on the output shaft of the motor to extend into the gear cavity and be linked with the gear set.

[0008] The utility model is further configured such that a one-way bearing is arranged at the center of the manual gear, the upper end of the manual gear forms a manual control end, a manual control hole is formed on the upper plate, and the manual control end passes through the manual control hole of the upper plate and is exposed outside the upper plate.

[0009] The utility model is further configured to have a manual groove on the upper plate, a manual cover plate on the manual groove, the lower end of the manual cover plate is clamped in the manual groove and slides, and the two end positions of the sliding manual cover plate correspond to the manual control end position covering the manual gear and the manual control end position exposing the manual gear respectively.

[0010] The utility model is further configured such that a sliding plate is connected to the lower end of the limit block below the slider, the sliding plate is arranged below the middle plate, the width of the sliding plate is greater than the width of the slider slot, and the limit block of the slider is clamped in the slider slot through the sliding plate.

[0011] The utility model is further configured to form a power supply installation position in the base, and a power supply module is arranged in the power supply installation position.

[0012] The utility model is further configured such that the gear set includes a turbine, a pinion, a reduction gear, and a large gear; the worm on the motor output shaft meshes and links with the turbine; the pinion is coaxially connected to the turbine; a plurality of reduction gears are connected between the pinion and the large gear to achieve a linkage connection between the large gear and the pinion; and the large gear is coaxially connected to the manual gear.

[0013] The utility model is further configured that a sliding rod is arranged on one side of the sliding block groove above the middle plate, a sliding rod groove is formed below the sliding block corresponding to the sliding rod, and the sliding rod groove is sleeved on the sliding rod and slides along the sliding rod.

[0014] The beneficial effect of the utility model is that the base, the middle plate and the upper plate are arranged, and the components of the electric operating mechanism are fixed on the base, the middle plate and the upper plate, so that the electric operating mechanism is integrated and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of specific embodiment 1 of the utility model.

[0016] Figure 2 It is an exploded view of the slider assembly of the specific embodiment 1 of the utility model.

[0017] Figure 3 It is an exploded view of specific embodiment 1 of the utility model.

[0018] Figure 4 It is an exploded view of specific embodiment 2 of the utility model. DETAILED DESCRIPTION

[0019] like Figure 1 to Figure 3As shown, a specific embodiment of the utility model is an electric operating mechanism for a circuit breaker, comprising a base 1, a middle plate 2, an upper plate 3, a motor 4, a gear set 5, a manual gear 6, a slider gear 7, and a slider 8. A motor cavity 11 and a gear cavity 12 are formed in the base 1, a worm hole is provided between the motor cavity 11 and the gear cavity 12, the motor 4 is arranged in the motor cavity 11, the gear set 5 is arranged in the gear box 12, a worm 41 is provided on the output shaft of the motor 4, and extends into the gear cavity 12 and is linked to the gear set 5, the gear set 5 comprises a turbine 51, a pinion 52, a reduction gear 53, and a large gear 54, the worm 41 on the output shaft of the motor 4 is meshed and linked with the turbine 51, the pinion 52 is coaxially connected with the turbine 41, two reduction gears 53 are connected between the pinion 52 and the large gear 54 to realize the linkage connection between the large gear 54 and the pinion 52, and the large gear 54 is coaxially connected with the manual gear 6.

[0020] The middle plate 2 is arranged above the base 1, the manual gear 6, the slider gear 7 and the slider 8 are arranged above the middle plate 2, the manual gear 6 rotates synchronously with the large gear 54, the upper plate 3 is arranged above the middle plate 2, a circular slider gear hole 31 is formed on the upper plate 3, a circular limit block 71 is formed on the upper side of the slider gear 7 and passes through the slider gear hole 31, an indicator piece 72 with a diameter larger than the slider gear hole 31 is arranged above the upper plate 3, the indicator piece 72 is connected to the slider gear 7, the slider gear 7 is limited to rotate below the upper plate 3, the slider gear 7 is meshed and linked with the manual gear 6, a slider groove 21 is formed on the middle plate 2, a limit block 81 is formed below the slider 8 and passes through the slider groove 21 of the middle plate 2 and slides, and a slider linkage is formed on the slider 8 Slot 82, the slider gear 7 is provided with a linkage rod 73 extending downward at an eccentric position, the linkage rod 73 is passed through the slider linkage slot 82 to push the slider 8 to slide along the slider slot 21, a handle linkage slot 83 for connecting the circuit breaker handle is formed on the slider 8, the lower end of the limit block 81 below the slider 8 is connected with a sliding plate 84, the sliding plate 84 is arranged below the middle plate 2, the width of the sliding plate 84 is greater than the width of the slider slot 21, the limit block 81 of the slider 8 is clamped in the slider slot 21 through the sliding plate 84, a slider limit slot 22 is formed on one side of the slider slot 21, a small limit block 85 is formed on the slider 8 to be clamped in the slider limit slot 22, the lower end of the small limit block 85 is connected to the sliding plate 84, and a micro switch is provided at one end of the slider 8.

[0021] A one-way bearing is arranged at the center of the manual gear 6, a manual control end 61 is formed at the upper end of the manual gear 6, a manual control hole 32 is formed on the upper plate 3, the manual control end 61 passes through the manual control hole 32 of the upper plate 3 and is exposed outside the upper plate 3, a manual groove 33 is arranged on the upper plate 3, a manual cover plate 34 is arranged on the manual groove 33, the lower end of the manual cover plate 34 is clamped in the manual groove 33 and slides, the two end positions of the sliding manual cover plate 34 respectively correspond to the position of the manual control end 61 covering the manual gear 6 and the position of the manual control end 61 exposing the manual gear 6, and a micro switch is arranged at one end of the manual cover plate 34.

[0022] A power supply installation position 13 is formed in the base 1, and a power supply module 9 is arranged in the power supply installation position 13. A sealing plate 10 is arranged at the bottom of the gear cavity 12 of the base 1, and the sealing plate 10 seals the gear set in the gear cavity 12 of the base 1. A slidable separation and combination indicator 35 is also arranged on the upper plate 3, and the separation and combination indicator 35 is arranged at one end of the slider 8 and is linked to the slider 8.

[0023] like Figure 4 As shown, specific embodiment 2 of the utility model is an electric operating mechanism for a circuit breaker, and the difference between it and specific embodiment 2 is that a sliding rod 20 is arranged on one side of a slider groove 21 above the middle plate 2, and a sliding rod groove 80 is formed below the slider 8 corresponding to the sliding rod. The sliding rod groove 80 is sleeved on the sliding rod 20 and slides along the sliding rod 20 to realize the limiting guidance of the slider 2, and the lower end of the separation and combination indicator 35 arranged on the upper plate 3 is sleeved on the sliding rod 20 and slides, and guide rails 23 are arranged on both sides of the inner side of the slider groove 21; the gear cavity 12 of the base 1 is covered with the middle plate 2.

[0024] In addition to the above embodiments, other obvious changes are also within the scope of the claims of the present utility model.

Claims

1. An electric operating mechanism for a circuit breaker, characterized in that: It includes a base, a middle plate, a motor, a gear set, a manual gear, a slider gear, and a slider. The motor and the gear set are arranged in the base, the middle plate is arranged above the base, the manual gear, the slider gear and the slider are arranged above the middle plate, the motor is linked to the input end of the gear set, the manual gear is linked to the output end of the gear set, the slider gear is meshed and linked with the manual gear, a slider groove is formed on the middle plate, a limit block is formed below the slider and penetrates into the slider groove of the middle plate and slides, the slider is linked to the slider gear, and a handle linkage groove for connecting the circuit breaker handle is formed on the slider.

2. The electric operating mechanism for a circuit breaker according to claim 1, characterized in that: The electric operating mechanism also includes an upper plate, a circular slider gear hole is formed on the upper plate, a circular limit block is formed on the upper side of the slider gear and passes through the slider gear hole, an indicator piece with a diameter larger than the slider gear hole is arranged above the upper plate, the indicator piece is connected to the slider gear, and the slider gear is limited to rotate below the upper plate.

3. The electric operating mechanism for a circuit breaker according to claim 2, characterized in that: A slider linkage groove is formed on the slider, and a downwardly extending linkage rod is arranged at an eccentric position of the slider gear. The linkage rod is inserted into the slider linkage groove to push the slider to slide along the slider groove.

4. The electric operating mechanism for a circuit breaker according to claim 1, 2 or 3, characterized in that: A motor cavity and a gear cavity are formed in the base, a worm hole is arranged between the motor cavity and the gear cavity, the motor is arranged in the motor cavity, the gear set is arranged in the gear box, and a worm is arranged on the output shaft of the motor to extend into the gear cavity and be linked with the gear set.

5. The electric operating mechanism for a circuit breaker according to claim 2 or 3, characterized in that: A one-way bearing is arranged at the center of the manual gear, a manual control end is formed at the upper end of the manual gear, a manual control hole is formed on the upper plate, and the manual control end passes through the manual control hole of the upper plate and is exposed outside the upper plate.

6. The electric operating mechanism for a circuit breaker according to claim 5, characterized in that: A manual slot is provided on the upper plate, and a manual cover is provided on the manual slot. The lower end of the manual cover is clamped in the manual slot and slides. The two end positions of the sliding manual cover correspond to the manual control end position covering the manual gear and the manual control end position exposing the manual gear respectively.

7. The electric operating mechanism for a circuit breaker according to claim 1, 2 or 3, characterized in that: The lower end of the limit block below the slider is connected with a sliding plate, which is arranged below the middle plate. The width of the sliding plate is greater than the width of the slider slot, and the limit block of the slider is clamped in the slider slot through the sliding plate.

8. The electric operating mechanism for a circuit breaker according to claim 1, 2 or 3, characterized in that: A power supply installation position is formed in the base, and a power supply module is arranged in the power supply installation position.

9. The electric operating mechanism for a circuit breaker according to claim 4, characterized in that: The gear set includes a turbine, a pinion, a reduction gear, and a large gear. The worm on the motor output shaft is meshed and linked with the turbine. The pinion is coaxially connected to the turbine. Multiple reduction gears are connected between the pinion and the large gear to achieve a linkage connection between the large gear and the pinion. The large gear is coaxially connected to the manual gear.

10. The electric operating mechanism for a circuit breaker according to claim 7, characterized in that: A sliding rod is arranged on one side of the sliding block groove above the middle plate, and a sliding rod groove is formed below the sliding block corresponding to the sliding rod. The sliding rod groove is sleeved on the sliding rod and slides along the sliding rod.

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