An intelligent circuit breaker closing and opening driving mechanism and intelligent circuit breaker

Abstract

The utility model discloses a kind of intelligent circuit breaker combination brake drive mechanism and intelligent circuit breaker, intelligent circuit breaker combination brake drive mechanism includes the casing of operating mechanism installation, and drive source piece and reduction drive assembly are transmissionally connected and installed in casing, further include transmission gear and push rod;Transmission gear is engaged with reduction drive assembly, and part gear one is fixed with on the back of transmission gear coaxially;The push rod is rotatably installed on casing and can be driven operating mechanism by connecting rod brake, and its upper portion extends to casing outside, and its lower portion is fixedly provided with part gear two, part gear two and part gear one tooth profile match, and realize unidirectional intermittent meshing transmission when transmission gear forward rotation;Intelligent circuit breaker includes above-mentioned intelligent circuit breaker combination brake drive mechanism.The utility model has compact structure, reliability is greatly promoted, operation safety is high, manual operation convenience is good, state perception precision and control intelligentization and the like advantages.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage electrical equipment technology, specifically relating to an intelligent circuit breaker closing and opening drive mechanism and an intelligent circuit breaker. Background Technology

[0002] As low-voltage power distribution systems evolve towards intelligence and digitalization, traditional manually operated circuit breakers can no longer meet the remote control requirements in scenarios such as 5G base stations, smart grids, and smart homes. Currently, miniature intelligent circuit breakers use a plastic component between the push rod and the reduction gear assembly to achieve electric and manual closing / opening, but this method generally suffers from the following problems:

[0003] (1) Redundancy in clutch structure and the setting of plastic clutch components lead to an increase in the number of parts, which raises the manufacturing cost and failure rate; the assembly process becomes more complicated, affecting production efficiency; long-term wear of clutch components can easily lead to transmission failure.

[0004] (2) Insufficient reliability. The push rod relies on the reaction force of the mechanism to close the circuit after passing the dead point, but in reality, it is prone to jamming due to friction. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a compact, reliable, and highly safe intelligent circuit breaker closing and opening drive mechanism and an intelligent circuit breaker.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A smart circuit breaker closing and opening drive mechanism includes a housing with an operating mechanism installed, a drive source component and a reduction transmission assembly installed inside the housing and connected in transmission, and a transmission gear and a push rod. The transmission gear meshes with the reduction transmission assembly, and a portion of the gear one is coaxially fixed on the back of the transmission gear. The push rod is rotatably mounted on the housing and can drive the operating mechanism to close and open the circuit breaker through a connecting rod. Its upper part extends outside the housing, and a portion of the gear two is fixedly installed at its lower part. The tooth profile of the portion of the gear two matches that of the portion of the gear one, and unidirectional intermittent meshing transmission is achieved when the transmission gear rotates in the forward direction.

[0008] A boss is fixed on the back of the transmission gear; the boss can contact and push the latch of the operating mechanism to unlock as the transmission gear rotates in the opposite direction, so that the operating mechanism can disengage and open the circuit breaker.

[0009] When the transmission gear rotates in the forward direction, after part of gear one completes the push of the push rod and disengages from part of gear two, boss one can still continue to contact with the transmission gear as it rotates in the forward direction and continue to push the push rod to rotate, so that the operating mechanism is closed in place.

[0010] Furthermore, the distance from the boss to the center of the transmission gear (the rotation radius of the boss) is greater than the distance from the edge of the gear to the center of the transmission gear (the pitch circle radius of the gear).

[0011] Furthermore, an indicator mark is provided on the front of the transmission gear to indicate the installation position and prevent incorrect installation.

[0012] Furthermore, the transmission gear has three positions: free position, closed position, and open position. When the transmission gear is in the free position, manually moving the push rod back and forth will cause part of gear two to not mesh with part of gear one (but when driving the transmission gear to rotate in the forward direction, part of gear one will actively mesh with part of gear two). Before switching between the closed and open positions, the transmission gear must return to the free position (that is, after the transmission gear rotates in the forward direction and pushes the push rod through part of gear one and boss one to close the operating mechanism, and after the transmission gear rotates in the reverse direction to disengage the operating mechanism to open the circuit, the drive source will drive the transmission gear back to the free position).

[0013] Furthermore, when a circuit fault causes the circuit breaker to trip, the transmission gear does not automatically return to the free position. The boss blocks the operating mechanism, making it difficult for it to rotate, and the transmission gear is locked in the tripped position (not automatically returning to the free position).

[0014] This utility model also provides an intelligent circuit breaker, including the above-mentioned intelligent circuit breaker closing and opening drive mechanism.

[0015] The intelligent circuit breaker also includes a PCBA, on which micro switch one, micro switch two, and micro switch three are installed. A boss two is provided on the front of the transmission gear. The boss two can trigger micro switch one and micro switch two respectively as the transmission gear rotates. When the transmission gear rotates and the boss two triggers micro switch one, the transmission gear reaches the free position. When the transmission gear rotates and the boss two triggers micro switch two, the transmission gear reaches the open position. A protrusion corresponding to the position of micro switch three is provided on the top of the push rod. When the push rod rotates to the position driven by the transmission gear, the protrusion of the push rod triggers micro switch three, and the transmission gear reaches the closed position.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) Achieved high-efficiency integration and structural simplification: The transmission gear integrates multiple key functions, realizing forward closing drive through part one gear, and reverse tripping and closing end-stage drive through boss one. This significantly reduces the number of parts, simplifies the transmission chain, and optimizes the spatial layout. The meshing of part one gear and part two gears achieves precise unidirectional intermittent transmission. The drive source only needs to operate within a specific angular range to complete the main closing action, improving efficiency.

[0018] (2) Enhanced closing reliability and efficient force output: A two-stage closing drive is adopted. In the initial closing stage, partial gear one meshes with partial gear two to provide the main driving torque, driving the push rod to rotate for most of the closing stroke. Then, in the final closing stage, boss one takes over and pushes the push rod to complete the final small-angle rotation, ensuring that the operating mechanism is closed in place and overcomes the dead point, achieving reliable mechanical locking and avoiding the risk of excessive stress or slippage of the gear meshing near the dead point. In addition, the rotation radius of boss one is larger than the pitch circle radius of partial gear one, which is equivalent to providing a larger lever arm in the final closing stage, effectively increasing the output torque and ensuring a firm closing.

[0019] (3) Reliable tripping and disengagement: Direct mechanical tripping is adopted. When the transmission gear rotates in the reverse direction, the boss directly pushes the latch of the operating mechanism to unlock, realizing tripping and tripping. This tripping method is faster and more reliable than relying on electromagnets or other indirect methods. At the same time, the fault locking (anti-accidental closing) is adopted. After the circuit fault causes the tripping and opening, the drive source component does not automatically reset the transmission gear. The boss keeps pressing against the operating mechanism, preventing it from rotating. This mechanically locks the tripping state and effectively prevents accidental manual closing before the fault is eliminated, greatly improving safety.

[0020] (4) Effectively compatible with manual operation: By setting the free position, in this position, both gear one and boss one of the transmission gear are disengaged from the push rod. When the push rod is manually operated to open or close the brake, it will not be driven or affected by the resistance or interference of the transmission gear, the reduction transmission assembly, or the drive source. Manual operation becomes very convenient and independent, greatly improving the user experience and maintenance convenience.

[0021] (5) Precise position detection and control: Utilizing the cooperation of three microswitches and the boss and protrusion, three key states are precisely detected and fed back:

[0022] Free position: Boss two triggers micro switch one.

[0023] Opening position: The second boss triggers the second micro switch (especially in the fault-locked state).

[0024] Closed position: The raised part triggers the micro switch three.

[0025] These position signals provide the basis for closed-loop control of the control unit (PCBA). The controller can accurately know the current state of the mechanism (idle, closed, open and locked) and control the action of the drive source (start, stop, reverse rotation, reset to free position, etc.) accordingly, realizing precise and reliable automatic operation logic.

[0026] (6) Improved service life: Some gears only mesh within the required angle range, reducing wear. The push of the boss replaces the gear meshing in the dead zone, avoiding extreme stress or slippage wear on the gear, thus improving service life.

[0027] This utility model cleverly integrates functions such as intermittent transmission, two-stage closing, direct mechanical tripping, fault status locking, manual operation decoupling, and precise position detection through highly integrated transmission gears. It has the advantages of compact structure, significantly improved reliability, high operational safety (especially fault prevention for accidental closing), good manual operation convenience, accurate status perception, and intelligent control. It is suitable for modern power distribution systems that require high reliability and intelligent control. Attached Figure Description

[0028] The structure of this utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the assembly of the transmission mechanism described in this utility model.

[0030] Figure 2 This is a schematic diagram of the assembly of the operating mechanism described in this utility model.

[0031] Figure 3 This is a schematic diagram (front view) of the transmission gear of this utility model in a free position.

[0032] Figure 4 This is a schematic diagram (rear view) of the transmission gear of this utility model in a free position.

[0033] Figure 5 This is a schematic diagram (front view) of the transmission gear described in this utility model.

[0034] Figure 6 This is a schematic diagram (rear view) of the transmission gear described in this utility model.

[0035] Figure 7 This is a schematic diagram (front view) of the push rod described in this utility model.

[0036] Figure 8 This is a schematic diagram of the push rod of the present invention (rear view).

[0037] Figure 9 This is a schematic diagram of the circuit breaker of this utility model in the closed position.

[0038] Figure 10 This is a schematic diagram of the circuit breaker of this utility model in the open (tripped) position.

[0039] The figure shows: 1-housing, 2-drive source component, 3-reduction transmission assembly, 301-transmission gear, 3011-partial gear one, 3012-boss one, 3013-boss two, 3014-indicator mark, 4-push rod, 401-partial gear two, 402-connecting rod mounting hole, 403-protrusion, 5-PCBA, 6-connecting rod, 7-operating mechanism, 701-lock, 8-moving contact, 9-stationary contact. Detailed Implementation

[0040] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be noted that the terms "comprising," "including," or any other variations are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Example 1

[0043] like Figure 1-10As shown, this embodiment provides an intelligent circuit breaker, including a closing and opening drive mechanism, as well as a linkage 6, an operating mechanism 7, a moving contact 8, a stationary contact 9, and a PCBA 5 (a circuit board with control circuitry installed), which are common features of conventional intelligent circuit breakers.

[0044] The closing and opening drive mechanism includes a housing 1, a drive source component 2, a speed reduction transmission assembly 3, a transmission gear 301, and a push rod 4.

[0045] The housing 1 is the mounting base of the circuit breaker. The operating mechanism 7 of the circuit breaker is mounted on the housing 1 and is used to drive the separation or contact of the moving contact 8 and the stationary contact 9. The latch 701 is provided with a surface 7011 corresponding to the position of the boss. It is pushed by the boss 3012 to realize the tripping and opening (mechanical hard connection, fast response).

[0046] The drive source component 2 is mounted on the housing 1 and serves as a power source, typically a motor, with a worm gear installed at its output end.

[0047] like Figure 5 and Figure 6 As shown, the reduction transmission assembly 3 is a reduction mechanism that is connected to the drive source component 2. It includes a first reduction gear and a second reduction gear. The first reduction gear consists of a worm gear and a small gear with a diameter smaller than the worm gear arranged coaxially. The worm gear meshes with the worm of the drive source component 2 to achieve first-stage reduction. The second reduction gear consists of a small gear and a large gear arranged coaxially. The large gear of the second reduction gear meshes with the small gear of the first reduction gear to convert the high speed and low torque of the motor into low speed and high torque, driving the transmission gear 301 to achieve second-stage reduction.

[0048] The transmission gear 301 meshes with the pinion of the reduction gear 2 in the reduction transmission assembly 3, receiving power. A partial gear 3011 (main drive for closing) is coaxially fixed on the back of the transmission gear 301. Partial gear 3011 is a disc-shaped incomplete gear structure (partially teeth, the other part is an arc segment). A boss 3012 is fixed on the back of the transmission gear 301; the boss 3012 can rotate in the opposite direction of the transmission gear 301. Figure 3 The direction of counterclockwise rotation of the transmission gear 301 in the middle Figure 4 The transmission gear 301 rotates clockwise (which is the direction of circuit breaking) and contacts and pushes the latch 701 of the operating mechanism 7 to unlock, so that the operating mechanism 7 is disengaged and the circuit is broken.

[0049] like Figure 7 and Figure 8As shown, the push rod 4 is rotatably mounted on the housing 1 and can drive the operating mechanism 7 to open and close the brake via the connecting rod 6 (one end of the connecting rod 6 is hinged to the push rod 4, and the other end is hinged to the jumper of the operating mechanism 7). The upper part of the push rod 4 extends outside the housing 1 (for manual operation), and a portion of the gear 401 is fixedly installed on the lower part of the push rod 4. The tooth profile of the portion of the gear 401 matches that of the portion of the gear 3011, and it rotates in the forward direction of the transmission gear 301. Figure 3 The transmission gear 301 rotates clockwise in the following direction. Figure 4 When the transmission gear 301 rotates counterclockwise (which is also the closing direction), it achieves unidirectional intermittent meshing transmission. A plane 4011 corresponding to the position of the boss 3012 is provided on part of the gear 401, allowing the boss 3012 to push at the end of the closing phase, thus avoiding interference. The distance from the boss 3012 to the center of the transmission gear 301 (the rotation radius of the boss 3012) is greater than the distance from the edge of part of the gear 3011 to the center of the transmission gear 301 (the pitch circle radius).

[0050] like Figure 9 As shown, when the transmission gear 301 rotates in the forward direction, causing part of the gear 3011 to push the push rod 4 and disengage from part of the gear 401, the boss 3012 can continue to contact and push the push rod 4 to rotate as the transmission gear 301 rotates in the forward direction, so that the operating mechanism 7 is closed in place. Example 2

[0051] The difference between this embodiment and Embodiment 1 is that:

[0052] The transmission gear 301 has three positions: free position, closed position, and open position. When the transmission gear 301 is in the free position, manually moving the push rod 4 back and forth will cause part of the gear 2 401 to disengage from part of the gear 1 3011, and the transmission gear 301 will disengage from the push rod 4, allowing manual operation without interference. Before switching between the closed and open positions, the transmission gear 301 must return to the free position (that is, after the transmission gear 301 rotates in the forward direction and pushes the push rod 4 to close the operating mechanism 7 through part of the gear 1 3011 and the boss 1 3012, and after the transmission gear 301 rotates in the reverse direction to disengage the operating mechanism 7, the drive source 2 will drive the transmission gear 301 back to the free position). Example 3

[0053] The difference between this embodiment and Embodiment 2 is as follows:

[0054] When a circuit fault causes the circuit breaker to trip, the transmission gear 301 does not automatically return to the free position. The boss 3012 presses against the operating mechanism 7, making it difficult for it to rotate (the boss 3012 presses against the surface 7011 of the operating mechanism 7, preventing it from rotating in the closing direction). The transmission gear 301 is locked in the tripped position (does not automatically return to the free position). Example 4

[0055] The difference between this embodiment and embodiments 2 or 3 is that:

[0056] Micro switch 1 501, micro switch 2 502 and micro switch 3 503 are installed on PCBA5; a boss 2 3013 is provided on the front of the transmission gear 301, and the boss 2 3013 can trigger micro switch 1 501 and micro switch 2 502 respectively as the transmission gear 301 rotates.

[0057] When the transmission gear 301 rotates, causing the second boss 3013 to trigger the first micro switch 501, the transmission gear 301 reaches the free position; when the transmission gear 301 rotates, causing the second boss 3013 to trigger the second micro switch 502, the transmission gear 301 reaches the open position; a protrusion 403 corresponding to the position of the third micro switch 503 is provided on the top of the push rod 4. When the push rod 4 rotates to the position driven by the transmission gear 301, the protrusion 403 of the push rod 4 triggers the third micro switch 503, and the transmission gear 301 reaches the closed position. Example 5

[0058] The difference between this embodiment and any one of embodiments 1-4 is that:

[0059] like Figure 5 As shown, an indicator mark 3014 for indicating the installation position is provided on the front of the transmission gear 301.

[0060] Working principle:

[0061] Manual opening and closing:

[0062] like Figure 1 As shown, after the circuit breaker is assembled as required, if the circuit breaker is powered on, that is, if a suitable voltage is provided to PCBA5, the program detects the authorization signal of the upper-level communication, drives the drive source component 2 to drive the reduction transmission assembly 3 to rotate, which in turn drives the transmission gear 301 to rotate counterclockwise until the boss 3013 on its front side contacts the micro switch 501 on PCBA5, triggering the micro switch 501 signal, and the transmission gear 301 stops to the free position (e.g., Figure 3 and Figure 4 (Position), at this time, the circuit breaker can be manually opened and closed.

[0063] Automatic closing:

[0064] like Figure 3As shown, when the transmission gear 301 stops in the free position, if remote closing is required, the drive source 2 can drive the reduction transmission assembly 3 to rotate, causing the transmission gear 301 to rotate clockwise. Part of the transmission gear 301, gear 1 3011, directly meshes with part of the push rod 4, gear 2 401, pushing the push rod 4 to rotate counterclockwise. Then, it connects to the connecting rod 6 through the preset connecting rod hole 402 on the push rod 4, pushing the operating mechanism 7 to close the circuit, so that the moving contact 8 contacts the stationary contact 9. The transmission gear 301 continues to rotate until the last tooth on part of the transmission gear 301, gear 1 3011, separates from the last tooth on part of the push rod 4, gear 2 4012. At this time, the push rod 4 has passed the dead point, and theoretically, it can close the circuit under the action of the mechanism reaction force. However, due to factors such as friction, the push rod 4 may not be able to rotate smoothly into place. Therefore, the transmission gear 301 needs to continue rotating. After the elongated oval boss 3012 on the transmission gear 301 contacts the plane 4011 on the second gear 401 of the push rod 4, it continues to push the push rod 4, causing the push rod 4 to rotate into position. The determination of the push rod 4 rotating into position is mainly achieved by the contact between the protrusion 403 on the push rod 4 and the micro switch 503 on the PCBA5, triggering the micro switch 503 signal, and the program executes the drive source component 2 to stop rotating. After the closing is completed, the drive source component 2 drives the reduction transmission assembly 3 to rotate, causing the transmission gear 301 to rotate in the opposite direction (counterclockwise) and return to the free position.

[0065] If a portion of the transmission gear 301 (gear 3011) and the portion of the push rod 4 (gear 401) remain engaged until the moment the brake is fully engaged, then when the transmission gear 301 returns to its free position after engagement, the teeth on the portion of gear 3011 and the portion of gear 401 may be too close together, potentially causing the brake to trip. Therefore, an elongated oval boss (3012) is provided on the transmission gear 301 to provide a thrust to the push rod 4. This ensures the mechanism is fully engaged while maintaining a sufficient distance between the teeth on the portion of gear 3011 and the portion of gear 401, preventing accidental disengagement.

[0066] Automatic tripping (disengagement)

[0067] like Figure 10 As shown, when the circuit breaker needs to be remotely tripped or tripped due to a circuit fault, the drive source 2 drives the reduction transmission assembly 3 to rotate, causing the transmission gear 301 to rotate in the opposite direction (clockwise). The boss 3012 on the transmission gear 301 contacts the surface 7011 on the latch 701 of the operating mechanism 7, pushing the latch 701 to unlock, and the mechanism is disengaged. After disengagement, the boss 3013 on the transmission gear 301 contacts the micro switch 502 on the control PCBA5, triggering the micro switch 502 signal, and the program executes to stop the drive source 2 from rotating.

[0068] If a circuit breaker trips due to a circuit fault, the transmission gear 301 will not return to its free position but will remain in the tripped position, i.e., locked. Manual reclosing is not possible in this situation.

[0069] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0070] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A smart circuit breaker closing and opening drive mechanism, comprising a housing (1) on which an operating mechanism (7) is installed, and a drive source component (2) and a speed reduction transmission assembly (3) installed inside the housing (1) and connected in transmission, characterized in that: It also includes a transmission gear (301) and a push rod (4); the transmission gear (301) meshes with the reduction transmission assembly (3), and a portion of the gear one (3011) is coaxially fixed on the back of the transmission gear (301); the push rod (4) is rotatably mounted on the housing (1) and can drive the operating mechanism (7) to open and close the brake through the connecting rod (6), its upper part extends outside the housing (1), and a portion of the gear two (401) is fixedly installed on its lower part. The tooth profile of the portion of the gear two (401) matches that of the portion of the gear one (3011), and unidirectional intermittent meshing transmission is achieved when the transmission gear (301) rotates in the forward direction.

2. The intelligent circuit breaker closing and opening drive mechanism according to claim 1, characterized in that: A boss (3012) is fixed on the back of the transmission gear (301); the boss (3012) can contact and push the latch (701) of the operating mechanism (7) to unlock as the transmission gear (301) rotates in the opposite direction, so that the operating mechanism (7) can be disengaged and tripped.

3. The intelligent circuit breaker closing and opening drive mechanism according to claim 2, characterized in that: When the transmission gear (301) rotates in the forward direction, causing part of the gear one (3011) to push the push rod (4) and disengage from part of the gear two (401), the boss one (3012) can continue to contact and push the push rod (4) to rotate as the transmission gear (301) rotates in the forward direction, so that the operating mechanism (7) is closed in place.

4. The intelligent circuit breaker closing and opening drive mechanism according to claim 3, characterized in that: The distance from the boss (3012) to the center of the transmission gear (301) is greater than the distance from the edge of part of the gear (3011) to the center of the transmission gear (301).

5. The intelligent circuit breaker closing and opening drive mechanism according to claim 3, characterized in that: An indicator mark (3014) for indicating the installation position is provided on the front of the transmission gear (301).

6. The intelligent circuit breaker closing and opening drive mechanism according to claim 3, characterized in that: The transmission gear (301) has three positions: free position, closed position, and open position. When the transmission gear (301) is in the free position, manually move the push rod (4) back and forth, and part of the second gear (401) will not mesh with part of the first gear (3011); before the transmission gear (301) switches between the closed and open positions, it must return to the free position.

7. The intelligent circuit breaker closing and opening drive mechanism according to claim 6, characterized in that: When a circuit fault causes the circuit breaker to trip, the transmission gear (301) does not automatically return to the free position. The boss (3012) blocks the operating mechanism (7), making it difficult for it to rotate. The transmission gear (301) is locked in the tripped position.

8. An intelligent circuit breaker, characterized in that: Includes the intelligent circuit breaker closing and opening drive mechanism as described in claim 6 or 7.

9. The intelligent circuit breaker according to claim 8, characterized in that: It also includes a PCBA (5), on which micro switch one (501), micro switch two (502), and micro switch three (503) are installed; a boss two (3013) is provided on the front of the transmission gear (301), and the boss two (3013) can trigger micro switch one (501) and micro switch two (502) respectively as the transmission gear (301) rotates; when the transmission gear (301) rotates and causes the boss two (3013) to trigger micro switch one (501), the transmission gear... The drive gear (301) reaches the free position; when the drive gear (301) rotates and causes the boss (3013) to trigger the micro switch (502), the drive gear (301) reaches the open position; a protrusion (403) corresponding to the position of the micro switch (503) is provided on the top of the push rod (4). When the push rod (4) rotates to the position driven by the drive gear (301), the protrusion (403) of the push rod (4) triggers the micro switch (503), and the drive gear (301) reaches the closed position.

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