Intelligent molded case circuit breaker

Abstract

The present invention discloses an intelligent molded case circuit breaker, which belongs to the field of power equipment. An intelligent molded case circuit breaker includes a protective box and a circuit breaker body provided in the protective box and provided with a switch, and also includes: an air pump provided in the protective box, wherein the output end of the air pump is fixedly connected with a connecting pipe, both ends of the connecting pipe are fixedly connected with sleeve rods, the output end of the sleeve rod is provided on the switch toggle end, and is fixedly connected to two connecting plates on the sleeve rods on both sides, and a driving part for driving the connecting plate to rise and fall is provided inside the protective box; the present invention can compress the reset spring to open only a single switch when the electric telescopic rod is started through the cooperation of the electric telescopic rod and the reset spring, and can also accurately control the lifting and lowering of the connecting plate so that the connecting plate moves together, thereby realizing accurate control of the switch, so that all switches are turned on or off at the same time, and ensuring the accuracy and reliability of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to an intelligent molded case circuit breaker. Background Art

[0002] In modern power systems, molded case circuit breakers are an important protective device. They can automatically cut off the current after the current exceeds the trip setting. The molded case refers to the use of plastic insulators as the outer shell of the device to isolate the conductors and the grounded metal parts. It is widely used in low-voltage power distribution systems. Molded case circuit breakers are a device used for long-time delay overload and instantaneous short circuit. They have current limiting breaking capabilities. They are mainly used to quickly cut off the power supply when the circuit fails to ensure the safety of equipment and personnel. The working principle of molded case circuit breakers is mainly based on the thermal effect and electromagnetic effect of current. When the current in the circuit exceeds the set value, the thermal element inside the circuit breaker will heat up, causing the bimetallic strip to bend, pushing the free tripping mechanism to operate, and the main contacts to disconnect the main circuit. At the same time, when a short circuit occurs in the circuit, the short-circuit current will generate a strong electromagnetic force, causing the electromagnetic release to operate and quickly cut off the power supply.

[0003] When an existing molded case circuit breaker is in use, when a short circuit or overload occurs, the switch of the circuit breaker will automatically turn off. At this time, the operator needs to manually turn on the switch after receiving the message that the maintenance is completed, which is cumbersome and increases the workload of the maintenance personnel. In addition, it is necessary to manually turn on or off a switch or turn on or off the switches at the same time, and the reset operation of the switch and the reopening after the reset also require manual operation, which increases the workload of the operators and wastes labor costs. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that a multi-circuit circuit breaker cannot control the opening and closing of a single switch, and to propose an intelligent molded case circuit breaker.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An intelligent molded case circuit breaker comprises a protective box and a circuit breaker body provided with a switch in the protective box, and further comprises: an air pump provided in the protective box, wherein the output end of the air pump is fixedly connected with a connecting pipe, both ends of the connecting pipe are fixedly connected with sleeve rods, the output end of the sleeve rod is provided on the switch toggle end, and is fixedly connected to two connecting plates on the sleeve rods on both sides, and a driving part for driving the connecting plate to rise and fall is provided inside the protective box, wherein a No. 2 electric telescopic rod is fixedly connected in the protective box, the output end of the No. 2 electric telescopic rod is fixedly connected with a push rod, the output end of the push rod is fixedly connected with a push plate, the push plate cooperates with the connecting plate on the other side, active grooves are provided on the connecting plates on both sides, a push rod is fixedly connected on the push plate, the push rod is slidably installed in the active groove on one side, the matching rod is slidably installed in the active groove on one side, a push head is fixedly connected to the matching rod and the push rod, a reset spring is fixedly connected to the push plate and the top plate, and the free end of the reset spring is fixedly connected to the connecting plate. 。

[0007] Preferably, limiting grooves are provided on both sides of the protective box, the two air pumps are slidably installed in the limiting grooves, a piston rod is slidably installed in the sleeve rod, a push head is fixedly connected to the piston rod, and the push head is arranged at the toggle end of the switch.

[0008] In order to push one side connecting plate, preferably, the driving part includes a No. 1 electric telescopic rod fixedly connected to the protective box, the output end of the No. 1 electric telescopic rod is fixedly connected to a double-sided toothed plate, one side of the double-sided toothed plate is meshed with a rotating gear, a threaded rod is fixedly connected to the rotating gear, a mating rod is meshed with the threaded rod, a top plate is fixedly connected to the mating rod, and the top plate is mated with one side connecting plate.

[0009] In order to clean the breathable filter, further, the limit groove is fixedly connected with the breathable filter, the air pump is fixedly connected with a brush head, and the brush head is arranged in close contact with the breathable filter.

[0010] In order to press and reset, further, the protective box is provided with a box cover for opening and closing, the box cover is connected to a reset box, a connecting rod is fixedly connected to the reset box, the connecting rod is fixedly connected to the box cover, a pressing rod is slidably installed in the reset box, and a reset button is provided on any of the circuit breaker bodies, and the pressing rod cooperates with the reset button.

[0011] In order to prevent the reset box from being opened by mistake, further, a rotating rod is rotatably installed on the reset box, a baffle is provided on the rotating rod, a driving gear is meshingly installed on the other side of the double-sided toothed plate, a rotating shaft is fixedly connected to the driving gear, an active bevel gear is fixedly connected to the rotating shaft, a linkage bevel gear is fixedly connected to the rotating rod, and the linkage bevel gear is meshed with the active bevel gear.

[0012] In order to cooperate with the downward pressure of the pressure block, further, a sleeve plate is fixedly connected to the rotating rod, a tension spring is fixedly connected inside the sleeve plate, a telescopic plate is fixedly connected to the free end of the tension spring, and the baffle is fixedly connected to the telescopic plate.

[0013] In order to push the pressing rod to press the reset button, further, an insertion groove is provided on the reset box, a pressure block is fixedly connected to the push plate, the pressure block is slidably installed in the insertion groove, a top block is slidably installed in the insertion groove, the pressure block cooperates with the top block, the pressing rod is fixedly connected to the top block, wherein sliders are fixedly connected on both sides of the top block, a sliding groove is provided in the reset box, the slider is slidably installed inside the sliding groove, a support spring is fixedly connected to the slider, and the free end of the support spring is fixedly connected to the sliding groove.

[0014] Compared with the prior art, the present invention provides an intelligent molded case circuit breaker, which has the following beneficial effects:

[0015] 1. The intelligent molded case circuit breaker realizes remote control of a single switch by setting an air pump and an electric telescopic rod. When a single switch needs to be opened or closed, it is only necessary to operate the air pump or the electric telescopic rod, which avoids the tediousness and danger of manual operation and improves maintenance efficiency and safety.

[0016] 2. The intelligent molded case circuit breaker, through the cooperation of the electric telescopic rod and the reset spring, can compress the reset spring to open only a single switch when the electric telescopic rod is started, and can also accurately control the lifting of the connecting plate so that the connecting plate moves together, thereby achieving precise control of the switch and turning all switches on or off at the same time, ensuring the accuracy and reliability of the operation.

[0017] 3. The intelligent molded case circuit breaker can effectively prevent dust and foreign matter from entering the air pump through the design of the breathable filter and brush head, ensuring the long-term stable operation of the equipment. When the electric telescopic rod is operated to push the connecting plate to rise and fall synchronously as a whole, the air pump and the brush head are driven to slide, and the brush head cleans the filter holes of the breathable filter to ensure the air permeability of the filter.

[0018] 4. The intelligent molded case circuit breaker realizes the automatic reset function of the circuit breaker through the design of the reset box. When the circuit breaker trips due to a fault, the operator controls the two electric telescopic rods to start at the same time. Through the cooperation of the pressure block and the top block, the pressing rod is accurately controlled to ensure that the pressing rod can accurately press the reset button during the reset process, avoiding equipment damage caused by improper operation, realizing automatic reset of the circuit breaker, greatly reducing the complexity and time cost of manual operation, and reducing the risk of secondary failures caused by improper operation.

[0019] 5. The intelligent molded case circuit breaker ensures that the reset box will not be misoperated under normal working conditions through the design of the rotating rod and the linked bevel gear. The reset box can only be opened under specific operating conditions, thereby ensuring the safety and reliability of the equipment. Through the design of the slider and the support spring, after the pressing rod presses the reset button, the elastic force of the support spring will reset the pressing rod, which is convenient for next use.

[0020] In summary, the intelligent molded case circuit breaker of the present invention not only improves the convenience and safety of operation, but also ensures the long-term stable operation of the equipment through a series of innovative designs, greatly reduces maintenance costs and improves production efficiency, and has significant economic and social benefits.

[0021] The parts not involved in the device are the same as the prior art or can be implemented by using the prior art. The present invention can control a single switch to be turned on or off respectively, and can also reset the circuit breaker after tripping, thereby eliminating manual operation and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an intelligent molded case circuit breaker proposed by the present invention;

[0023] Figure 2 A schematic diagram of the internal structure of a protection box of an intelligent molded case circuit breaker proposed by the present invention;

[0024] Figure 3 A schematic diagram of the circuit breaker body structure of an intelligent molded case circuit breaker proposed by the present invention;

[0025] Figure 4 A schematic diagram of the air pump structure of an intelligent molded case circuit breaker proposed by the present invention;

[0026] Figure 5 A schematic diagram of the top plate structure of an intelligent molded case circuit breaker proposed by the present invention;

[0027] Figure 6 A schematic diagram of a push plate structure of an intelligent molded case circuit breaker proposed by the present invention;

[0028] Figure 7 A schematic diagram of the reset box structure of an intelligent molded case circuit breaker proposed by the present invention;

[0029] Figure 8 An intelligent molded case circuit breaker proposed by the present invention Figure 7 Enlarged view of point A in the middle;

[0030] Fig. 9 A schematic diagram of the internal structure of a sleeve plate of an intelligent molded case circuit breaker proposed by the present invention;

[0031] Fig.10 This is a schematic diagram of the internal structure of a reset box of an intelligent molded case circuit breaker proposed by the present invention.

[0032] In the figure: 1. Protective box; 11. Breathable filter; 12. Box cover; 13. Limiting groove; 2. Circuit breaker body; 21. Switch; 22. Indicator light; 23. Reset button; 3. Air pump; 31. Connecting pipe; 32. Sleeve rod; 33. Piston rod; 34. Push head; 35. Connecting plate; 36. Movable groove; 37. Brush head; 4. No. 1 electric telescopic rod; 41. Double-sided tooth plate; 42. Rotating gear; 43. Threaded rod; 44. Top plate; 45. Matching rod; 46. Reset spring Spring; 5, No. 2 electric telescopic rod; 51, push rod; 52, push plate; 53, push rod; 54, pressure block; 6, reset box; 61, driving gear; 62, rotating shaft; 63, active bevel gear; 64, linkage bevel gear; 65, rotating rod; 66, connecting rod; 67, sleeve plate; 68, telescopic plate; 69, baffle; 610, pressing rod; 611, tension spring; 612, insertion slot; 613, push block; 614, slider; 615, support spring; 616, slide slot. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0035] Reference Figure 1-Figure 6, an intelligent molded case circuit breaker, comprising a protective box 1 and a circuit breaker body 2 provided in the protective box 1 and provided with a switch 21. The protective box 1 serves as the outer shell of the entire intelligent circuit breaker. It not only provides necessary protection to prevent external factors from interfering with or damaging internal components, but also is designed with a limit slot 13 for limiting and guiding the movement of an air pump 3. The switch 21 is used to control the on and off of the circuit. An indicator light 22 is provided on the circuit breaker body 2. The indicator light 22 indicates the current state of the circuit breaker through different colors or flashing modes. When the circuit breaker is in a closed state, the indicator light 22 lights up green; and when the circuit breaker is in an open state, the indicator light 22 may light up red. In this way, a user or operator can intuitively understand the state of the circuit and take corresponding measures. It also includes: an air pump 3 provided in the protective box 1, wherein the output end of the air pump 3 is fixedly connected to a connecting pipe 31, and the air pump 3 drives the toggle end of the switch 21 by generating air pressure. The connecting pipe 3 1 To ensure that the air pressure can be transmitted smoothly, both ends of the connecting pipe 31 are fixedly connected with a sleeve rod 32, and the output end of the sleeve rod 32 is arranged on the toggle end of the switch 21. When the air pump 3 is working, the air pressure pushes the piston rod 33 to slide in the sleeve rod 32, thereby driving the push head 34 to move. The push head 34 directly acts on the toggle end of the switch 21 to realize the automatic opening and closing of the switch 21. Limiting grooves 13 are arranged on both sides of the protective box 1. The two air pumps 3 are slidably installed in the limiting grooves 13. The piston rod 33 is slidably installed in the sleeve rod 32. The push head 34 is fixedly connected to the piston rod 33. The push head 34 is arranged on the toggle end of the switch 21. Two connecting plates 35 fixedly connected to the sleeve rods 32 on both sides are respectively fixedly connected to the sleeve rods 32 on both sides, which play the role of connecting and synchronizing the actions of the air pumps 3 on both sides. When it is necessary to control the switches 21 on both sides at the same time, this design can ensure the consistency of the actions on both sides. A driving part for driving the connecting plate 35 to rise and fall is arranged inside the protective box 1.

[0036] Reference Figure 2-Figure 6The driving part includes an electric telescopic rod 4 fixedly connected to the protective box 1, and the output end of the electric telescopic rod 4 is fixedly connected to a double-sided toothed plate 41. When the electric telescopic rod 4 is working, its output end will drive the double-sided toothed plate 41 to perform linear motion. A rotating gear 42 is meshedly installed on one side of the double-sided toothed plate 41. When the double-sided toothed plate 41 moves, it will drive the rotating gear 42 to rotate. A threaded rod 43 is fixedly connected to the rotating gear 42, and a matching rod 45 is meshedly installed on the threaded rod 43. When the threaded rod 43 rotates, it will drive the matching rod 45 to perform linear motion. A top plate 44 is fixedly connected to the matching rod 45, and the top plate 44 is connected to one side. The connecting plate 35 cooperates with the threaded rod 43 and is slidably installed in the movable groove 36 on one side to ensure the stability of its linear motion. The top plate 44 and the push head 34 are fixedly connected to the matching rod 45. When the matching rod 45 moves, the top plate 44 and the push head 34 will be driven to move together. The top plate 44 acts on the opening end of the switch 21 through the push head 34 thereon to realize the control of the switch 21. At the same time, the top plate 44 is also fixedly connected to the return spring 46. When the top plate 44 drives the push head 34 to rise, the return spring 46 is first squeezed upward and the switch 21 is turned on through the push head 34, and the No. 1 electric telescopic rod 4 continues to drive the double-sided toothed plate 41 to move. The rotation of the rotating gear 42 is caused by the movement of the return spring 46, so that the rotating gear 42 continues to rotate. When the return spring 46 is completely squeezed, the connecting plate 35 is pushed upward as a whole by the continuous upward thrust of the matching rod 45 and the top plate 44, so that all switches 21 are turned on synchronously. A second electric telescopic rod 5 is fixedly connected in the protective box 1 as another driving source. The output end of the second electric telescopic rod 5 is fixedly connected to a push rod 51, which drives the push plate 52 to move linearly. The output end of the push rod 51 is fixedly connected to a push plate 52, and the push plate 52 cooperates with the connecting plate 35 on the other side. The connecting plates 35 on both sides are provided with movable grooves 36, and the push plate 52 is fixedly connected with a push rod 53. The push rod 51 moves the second electric telescopic rod 5 The power of the electric telescopic rod 5 is transmitted to the push plate 52, and the push plate 52 acts on the closing end on the other side of the switch 21 through the push rod 53 and the push head 34 thereon. The push rod 53 is slidably installed in the movable groove 36 on one side, and the matching rod 45 is slidably installed in the movable groove 36 on one side. The matching rod 45 and the push rod 53 are fixedly connected with the push head 34, and the push plate 52 and the top plate 44 are fixedly connected with a return spring 46. The free end of the return spring 46 is fixedly connected to the connecting plate 35. The return spring 46 is used to automatically reset the top plate 44, the push plate 52 and the push heads 34 thereon to the initial position after the control action is completed, preparing for the next control action.

[0037] A breathable filter 11 is fixedly connected to the limiting groove 13, and the breathable filter 11 is fixed on the limiting groove 13. Its main function is to allow air to pass through, while blocking dust, impurities, etc. from entering the protective box 1, protecting the air pump 3 and other internal components from pollution and damage, and can adjust the air flow speed and pressure entering the air pump 3 to a certain extent, ensuring that the air pump 3 can work stably and efficiently. A brush head 37 is fixedly connected to the air pump 3, and the brush head 37 is fitted with the breathable filter 11. This design makes it possible for the brush head 37 to gently brush the surface of the breathable filter 11 as the air pump 3 vibrates or moves when pushing the connecting plate 35 on either side to move as a whole. The main function of the brush head 37 is to clean the dust and impurities accumulated on the breathable filter 11, prevent the filter from being blocked, and maintain its good breathability. This automatic cleaning mechanism reduces the frequency and difficulty of manual maintenance, and improves the reliability and service life of the equipment.

[0038] Reference Figure 7-10, a box cover 12 is opened and closed on the protective box 1, a reset box 6 is connected to the box cover 12, a connecting rod 66 is fixedly connected to the reset box 6, the connecting rod 66 is fixedly connected to the box cover 12, a pressing rod 610 is slidably installed in the reset box 6, a reset button 23 is provided on any circuit breaker body 2, the pressing rod 610 cooperates with the reset button 23, when the circuit breaker needs to be reset, the reset button 23 can be triggered by pressing the pressing rod 610, thereby realizing the reset operation of the circuit breaker, a rotating rod 65 is rotatably installed on the reset box 6, a baffle 69 is provided on the rotating rod 65, a driving gear 61 is meshed and installed on the other side of the double-sided toothed plate 41, a rotating shaft 62 is fixedly connected to the driving gear 61, and an active bevel gear 63 is fixedly connected to the rotating shaft 62, and a rotating shaft 62 is fixedly connected to the active bevel gear 63. A linkage bevel gear 64 is fixedly connected to the rod 65, and the linkage bevel gear 64 meshes with the active bevel gear 63. When the double-sided toothed plate 41 moves, the driving gear 61 is driven to rotate at the same time. The driving gear 61 drives the active bevel gear 63 to rotate through the rotating shaft 62. When the active bevel gear 63 rotates, the position of the baffle 69 is adjusted through the linkage bevel gear 64. A sleeve plate 67 is fixedly connected to the rotating rod 65. A tension spring 611 is fixedly connected to the sleeve plate 67. The free end of the tension spring 611 is fixedly connected to the telescopic plate 68. The baffle 69 is fixedly connected to the telescopic plate 68. The upper push plate 52 drives the pressure block 54 to press down. When the baffle 69 is in the initial position, it can move in cooperation with the continuous downward pressure of the pressure block 54, and the downward force of the pressure block 54 is applied to the baffle On the plate 69, the baffle plate 69 moves in the sleeve plate 67 through the telescopic plate 68 and compresses the tension spring 611. An insertion groove 612 is provided on the reset box 6. A pressure block 54 is fixedly connected to the push plate 52. The pressure block 54 is slidably installed in the insertion groove 612. A top block 613 is slidably installed in the insertion groove 612. The pressure block 54 cooperates with the top block 613. When the No. 1 electric telescopic rod 4 and the No. 2 electric telescopic rod 5 work at the same time, the No. 1 electric telescopic rod 4 controls the baffle plate 69 to rotate to leak the insertion groove 612, and the No. 2 electric telescopic rod 5 drives the pressure block 54 to press down into the insertion groove 612. The inclined surface of the pressure block 54 fits with the inclined surface of the top block 613. The pressure block 54 pushes the top block 613 to move when sliding, and the pressing rod 610 is fixedly connected It is connected to the top block 613, wherein both sides of the top block 613 are fixedly connected with sliders 614, a slide groove 616 is opened in the reset box 6, and the slider 614 is slidably installed inside the slide groove 616, and a support spring 615 is fixedly connected to the slider 614, and the free end of the support spring 615 is fixedly connected to the slide groove 616. When the pressure block 54 completely enters the insertion groove 612, the top block 613 is pushed out, and the top block 613 drives the pressing rod 610 to slide, and the reset button 23 is pressed by the pressing rod 610 to reset the entire circuit breaker. During the sliding process of the top block 613, the support spring 615 is squeezed by the slider 614. After the resetting work is completed, the top block 613 is also reset by the elasticity of the support spring 615, which is convenient for the next operation.

[0039] In the present invention, first, when operating a single switch 21 to open or close, the air pump 3 on one side is turned on, and the air pressure provided inside the sleeve rod 32 of the air pump 3 is used to push out the piston rod 33 and push the switch 21 through the push head 34 on the piston rod 33. When the air pump 3 is working, the piston rod 33 at the opening end of the switch 21 on one side moves. However, through the mechanical connection of the switch 21 in the circuit breaker body 2, when the push head 34 pushes the switch 21 to open a small part, the switch 21 automatically rotates and pops up toward the other end. At this time, the air pump 3 can be controlled to extract the gas in the sleeve rod 32. When the middle switch 21 needs to be turned on, the No. 1 electric telescopic rod 4 is controlled to push the double-sided toothed plate 41 to move, and the matching rod 45 is raised. Otherwise, the No. 2 electric telescopic rod 5 is controlled to push the push rod 53 to move. During the operation of the driving mechanism, the reset spring 46 is squeezed to provide power for the subsequent reset action. When the driving mechanism completes its task, the reset spring 46 automatically resets the top plate 44, the push plate 52 and the push heads 34 thereon to their initial positions, preparing for the next control action.

[0040] When it is necessary to control all switches 21 to be turned on or off at the same time, the No. 1 electric telescopic rod 4 or the No. 2 electric telescopic rod 5 is started accordingly. When the No. 1 electric telescopic rod 4 is started, the middle switch 21 is first turned off by the matching rod 45, and the top plate 44 is driven to rise together by the continuous rise of the matching rod 45. The push heads 34 fixedly connected on both sides of the connecting plate 35 also synchronously push up the switch 21, so that all switches 21 are synchronously opened together. On the contrary, only the No. 2 electric telescopic rod 5 is controlled to push up, and all switches 21 can be turned off. The function of the air filter 11 is to allow air to pass through, while blocking dust and impurities from entering the interior of the protective box 1, protecting the air pump 3 and other internal components from pollution and damage. When controlling the movement of the connecting plate 35 on either side, the connecting plate 35 will drive the piston rods 33 on both sides and drive the air pumps 3 on both sides through the connecting pipe 31 to move synchronously. When the air pump 3 moves, the dust and impurities on the air filter 11 are cleaned by the brush head 37 to maintain its good air permeability, thereby ensuring that the air pump 3 can work stably and efficiently.

[0041] In terms of reset operation, when the circuit breaker needs to be reset, by pressing the pressing rod 610 on the reset box 6, the reset button 23 on the circuit breaker body 2 can be triggered to achieve the reset operation of the circuit breaker. When the baffle 69 on the rotating rod 65 is in the initial position, it can move in conjunction with the continuous downward pressure of the pressure block 54. When the No. 1 electric telescopic rod 4 and the No. 2 electric telescopic rod 5 work at the same time, the No. 1 electric telescopic rod 4 controls the baffle 69 to rotate so that the insertion slot 612 leaks out, while the No. 2 electric telescopic rod 5 drives the pressure block 54 to press down into the insertion slot 612. The pressure block 54 pushes the top block 613 to move when sliding, and the pressing rod 610 is fixedly connected to the top block 613. The reset button 23 is pressed through the top block 613 to reset the entire circuit breaker. After the reset work is completed, the elasticity of the support spring 615 resets the top block 613 to facilitate the next operation.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent molded case circuit breaker, comprising a protection box (1) and a circuit breaker body (2) arranged in the protection box (1) and provided with a switch (21), characterized in that: Also includes: An air pump (3) disposed in the protective box (1), The output end of the air pump (3) is fixedly connected to a connecting pipe (31), both ends of the connecting pipe (31) are fixedly connected to sleeve rods (32), and the output end of the sleeve rod (32) is arranged on the toggle end of the switch (21); Two connecting plates (35) are fixedly connected to the sleeve rods (32) on both sides, and a driving unit for driving the connecting plates (35) to move up and down is arranged inside the protection box (1). The protective box (1) is fixedly connected to a second electric telescopic rod (5), the output end of the second electric telescopic rod (5) is fixedly connected to a push rod (51), the output end of the push rod (51) is fixedly connected to a push plate (52), and the push plate (52) cooperates with the connecting plate (35) on the other side. The connecting plates (35) on both sides are provided with movable grooves (36), the push plate (52) is fixedly connected with a push rod (53), the push rod (53) is slidably installed in the movable groove (36) on one side, the matching rod (45) is slidably installed in the movable groove (36) on one side, the matching rod (45) and the push rod (53) are fixedly connected with a push head (34), the push plate (52) and the top plate (44) are fixedly connected with a return spring (46), and the free end of the return spring (46) is fixedly connected to the connecting plate (35).

2. The intelligent molded case circuit breaker according to claim 1, characterized in that: Limiting grooves (13) are provided on both sides of the protection box (1), and the two air pumps (3) are slidably installed in the limiting grooves (13). A piston rod (33) is slidably installed in the sleeve rod (32), and a push head (34) is fixedly connected to the piston rod (33). The push head (34) is arranged at the toggle end of the switch (21).

3. The intelligent molded case circuit breaker according to claim 2, characterized in that: The driving unit comprises a No. 1 electric telescopic rod (4) fixedly connected to the protective box (1); the output end of the No. 1 electric telescopic rod (4) is fixedly connected to a double-sided toothed plate (41); a rotating gear (42) is meshedly mounted on one side of the double-sided toothed plate (41); a threaded rod (43) is fixedly connected to the rotating gear (42); a matching rod (45) is meshedly mounted on the threaded rod (43); a top plate (44) is fixedly connected to the matching rod (45); and the top plate (44) matches with a connecting plate (35) on one side.

4. The intelligent molded case circuit breaker according to claim 3, characterized in that: The limiting groove (13) is fixedly connected to a breathable filter screen (11), the air pump (3) is fixedly connected to a brush head (37), and the brush head (37) is arranged in close contact with the breathable filter screen (11).

5. The intelligent molded case circuit breaker according to claim 4, characterized in that: The protection box (1) is provided with a box cover (12) for opening and closing, the box cover (12) is connected to a reset box (6), a connecting rod (66) is fixedly connected to the reset box (6), the connecting rod (66) is fixedly connected to the box cover (12), a pressing rod (610) is slidably installed in the reset box (6), and a reset button (23) is provided on any of the circuit breaker bodies (2), and the pressing rod (610) cooperates with the reset button (23).

6. The intelligent molded case circuit breaker according to claim 5, characterized in that: A rotating rod (65) is rotatably mounted on the reset box (6), a baffle (69) is provided on the rotating rod (65), a driving gear (61) is meshingly mounted on the other side of the double-sided toothed plate (41), a rotating shaft (62) is fixedly connected to the driving gear (61), an active bevel gear (63) is fixedly connected to the rotating shaft (62), a linkage bevel gear (64) is fixedly connected to the rotating rod (65), and the linkage bevel gear (64) meshes with the active bevel gear (63).

7. The intelligent molded case circuit breaker according to claim 6, characterized in that: The rotating rod (65) is fixedly connected to a sleeve plate (67), the sleeve plate (67) is fixedly connected to a tension spring (611), the free end of the tension spring (611) is fixedly connected to a telescopic plate (68), and the baffle plate (69) is fixedly connected to the telescopic plate (68).

8. The intelligent molded case circuit breaker according to claim 7, characterized in that: The reset box (6) is provided with an insertion groove (612), the push plate (52) is fixedly connected with a pressure block (54), the pressure block (54) is slidably installed in the insertion groove (612), a top block (613) is slidably installed in the insertion groove (612), the pressure block (54) cooperates with the top block (613), and the pressing rod (610) is fixedly connected to the top block (613). Wherein, sliders (614) are fixedly connected to both sides of the top block (613), a slide groove (616) is provided in the reset box (6), the slider (614) is slidably installed inside the slide groove (616), a support spring (615) is fixedly connected to the slider (614), and the free end of the support spring (615) is fixedly connected to the slide groove (616).

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