Intelligent circuit breaker

Abstract

The utility model provides an intelligent circuit breaker. The intelligent circuit breaker comprises an on-off execution module; the control module is used for controlling the closing and opening execution module to open or close; the control module comprises a manual sub-module and an automatic sub-module, and the two sub-modules can independently control the closing and opening execution module to open or close. A manual mode and an automatic mode are adopted, the operation flexibility is improved, and it is ensured that manual operation can still be carried out when remote failure occurs, and safety is guaranteed. The intelligent circuit breaker adopts miniaturized parts, so that the size of the whole intelligent circuit breaker is reduced, the structure is more compact, and installation and maintenance are convenient. And the structure is simple, the failure rate is reduced, and the maintenance convenience is improved.

Description

Technical Field

[0001] The present disclosure relates to electronic equipment, and in particular to an intelligent circuit breaker. Background Art

[0002] With the rapid development of smart grids and industrial automation, intelligent electrical equipment has become an indispensable part of the power system. As an important protection and control component in the power system, the intelligence level of the intelligent circuit breaker directly affects the reliability, safety and operational convenience of the entire power system. Compared with traditional mechanical circuit breakers, intelligent circuit breakers integrate advanced technologies such as power electronics technology and digital control devices. They can perform automatic reclosing operations and respond to remote control signals to realize remote control functions, thereby realizing automatic closing and opening, significantly improving operational efficiency and reducing the consumption of manpower and material resources. However, the intelligent circuit breakers in the prior art often face conflicts between automatic operation and manual operation modes, which not only increases the difficulty of operation, but also may cause safety hazards.

[0003] Therefore, how to achieve seamless switching between automatic operation and manual operation of intelligent circuit breakers and avoid operation conflicts has become an urgent problem to be solved. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide an intelligent circuit breaker to solve the problem of conflict between automatic operation and manual operation. The present disclosure provides an intelligent circuit breaker, comprising: a closing and opening execution module; an operation module, used to control the closing and opening execution module to open or close; the operation module includes a manual submodule and an automatic submodule, and both submodules can independently control the closing and opening execution module to open or close.

[0005] In one embodiment of the present disclosure, the closing and opening execution module includes: a moving contact, a static contact, a locking piece, a release piece and the connecting rod; wherein, the static contact is fixed on a base, the moving contact is arranged opposite to the static contact, the moving contact realizes closing by engaging with the static contact, and realizes opening by separating from the static contact; a locking piece is provided under the moving contact, and a slot is provided on the locking piece; the connecting rod is mounted on the moving contact; when closing, one end of the connecting rod is placed in the slot of the locking piece to fix the moving contact to the static contact; the release piece is connected to the locking piece, and is used to drive the connecting rod to slide out of the slot under preset conditions, release the fixing of the moving contact by the locking piece, and separate the moving contact from the static contact.

[0006] In one embodiment of the present disclosure, the card slot is a U-shaped slot.

[0007] In one embodiment of the present disclosure, the closing and opening execution module further includes an elastic element, one end of which is fixed to the release member, and the other end of which is fixed to a base, and the elastic element has a movement tendency to pull the release member.

[0008] In one embodiment of the present disclosure, the manual sub-module includes: a connecting rod and a handle; wherein the handle includes an operating part and a connecting rod part; the connecting rod part is provided with a fixing hole, one end of the connecting rod is placed in the fixing hole, and the other end extends to the locking hole on the locking member, which is used to transmit the movement of the operating part to the locking member to drive the moving contact to engage or separate with the static contact.

[0009] In one embodiment of the present disclosure, the automatic submodule includes: a control unit, a drive unit, and a transmission unit; wherein the control unit is connected to the drive unit for sending motion instructions to the drive unit; the drive unit is connected to the transmission unit for driving the transmission module according to the received motion instructions; the transmission unit is connected to the closing and opening execution module for driving the closing and opening execution module to open or close the switch.

[0010] In one embodiment of the present disclosure, the driving unit is a motor, including a DC motor, a stepper motor and a servo motor.

[0011] In one embodiment of the present disclosure, the transmission unit includes a worm, a worm wheel, a transmission wheel, a large gear, a handle transmission part, a connecting piece and a push rod; wherein the worm is arranged on the motor rotation shaft and is connected to the worm wheel; the worm wheel is composed of an upper worm wheel and a first lower gear, the transmission wheel is composed of an upper second upper gear and a second lower gear, and the first lower gear of the worm wheel is meshed with the second lower gear of the transmission wheel; the large gear is composed of a third upper gear, a third middle gear and a third lower cam, the third upper gear is meshed with the handle transmission part, and the third lower cam is connected to the push rod; the push rod is connected to one end of the connecting piece, and the other end of the connecting piece is connected to the release piece, and the connecting piece can move upward or downward under the action of the push rod to drive the release piece to achieve the engagement or separation of the moving contact and the static contact under the cooperation of the locking piece.

[0012] In one embodiment of the present disclosure, the automatic submodule also includes a sensor, which is connected to the control unit and is used to collect position information of specific mechanical components in the transmission unit; and is also used to send a closing signal or an opening signal to the control unit according to the position information, so that the control unit sends a stop command to stop the motor from rotating.

[0013] In one embodiment of the present disclosure, the sensor is an integrated circuit including a Hall element.

[0014] As described above, the intelligent circuit breaker provided in the embodiment of the present disclosure adopts miniaturized design components, which reduces the volume of the entire intelligent circuit breaker, making the intelligent circuit breaker more compact and convenient for installation and maintenance. It can control the closing and opening of the circuit breaker both remotely and manually, which increases the flexibility of operation and ensures that manual operation can still be performed to ensure safety when the remote control fails. In addition, the structure is simple, the failure rate is reduced, and the convenience of maintenance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The specific structure of the closing and opening execution module of the intelligent circuit breaker is shown.

[0016] Figure 2 Shows the specific structure of the closing and opening execution module of the intelligent circuit breaker when closing.

[0017] Figure 3 Show the specific structure of the automatic submodule of the intelligent circuit breaker.

[0018] Figure 4 Another specific structure of the automatic submodule of the intelligent circuit breaker is shown.

[0019] Figure 5 Show the specific structure of the transmission unit of the intelligent circuit breaker.

[0020] Figure 6 Shows the specific structure of the transmission unit of the intelligent circuit breaker when it is opened.

[0021] Figure 7 Demonstrate the specific structure of the transmission unit of the intelligent circuit breaker when it is closed.

[0022] Component number description

[0023] Combination and separation execution module 1

[0024] Moving contact 11

[0025] Stationary contact 12

[0026] Locking piece 13

[0027] Release piece 14

[0028] Connecting rod 15

[0029] Card slot 16

[0030] Elastic element 17

[0031] Base 18

[0032] Manual submodule 2

[0033] Connecting rod 21

[0034] Handle 22

[0035] Operation unit 221

[0036] Connecting rod 222

[0037] Handle transmission part 223

[0038] Automatic submodule 3

[0039] Control unit 31

[0040] Drive unit 32

[0041] Motor 321

[0042] Transmission unit 33

[0043] Worm 331

[0044] Worm gear 332

[0045] Upper gear 3321

[0046] First lower gear 3322

[0047] Transmission wheel 333

[0048] The second upper gear 3331

[0049] Second lower gear 3332

[0050] Big gear 334

[0051] The third upper gear 3341

[0052] The third middle gear 3342

[0053] The third lower cam 3343

[0054] Linkage 335

[0055] Push rod 336

[0056] Sensor 34 DETAILED DESCRIPTION

[0057] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0058] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0059] In the representations of the present disclosure, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials, or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any one or a group of embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present disclosure and features of different embodiments or examples, unless they are mutually contradictory.

[0060] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0061] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the message of the present disclosure, and shall not be overly interpreted as ideal or very formal meanings unless defined.

[0062] The intelligent circuit breaker disclosed in the present application includes a closing and opening execution module 1 and an operation module. Figure 1 , Figure 2 As shown, the specific structure of the combining and splitting execution module is displayed.

[0063] The closing and opening execution module 1 comprises: a moving contact 11, a stationary contact 12, a locking member 13, a release member 14 and the connecting rod 15; wherein the stationary contact 12 is fixed on a base 18, the moving contact 11 is arranged opposite to the stationary contact 12, the moving contact 11 realizes closing by engaging with the stationary contact 12, and realizes opening by separating from the stationary contact 12;

[0064] A locking member 13 is provided below the moving contact 11, and a slot 16 is provided on the locking member 13; the connecting rod 15 is mounted on the moving contact 11; when the switch is closed, one end of the connecting rod 15 is placed in the slot 16 of the locking member 13, so that the moving contact 11 is fixedly connected to the stationary contact 12;

[0065] The release member 14 is connected to the locking member 13 and is used to push the connecting rod 15 out of the slot 16 under a preset condition, release the locking member 13 from fixing the moving contact 11, and separate the moving contact 11 from the stationary contact 12.

[0066] Specifically, the static contact 12 is usually fixed on the base 18 of the circuit breaker, maintaining the unchanged position, and providing a stable contact point for the moving contact 11. Although the static contact 12 itself is not directly connected to the locking member 13, the locking member 13 indirectly affects the engagement and separation of the static contact 12 and the moving contact 11 by controlling the movement of the moving contact 11. The release member 14 is located below the moving contact 11 and is used to push the locking member 13 in the event of a fault, such as when the circuit is overloaded or short-circuited, so that the connecting rod 15 of the locking member 13 and the moving contact 11 is disengaged from the slot 16 to disconnect the circuit. That is, the static contact 12 contacts the moving contact 11 under normal conditions to form a closed circuit. When the circuit needs to be opened or a fault occurs and tripping is required, the trip member 14 will drive the locking member 13 to separate the moving contact 11 from the static contact 12, thereby disconnecting the circuit.

[0067] In some embodiments, the card slot 16 is a U-shaped slot.

[0068] In some embodiments, the closing and opening execution module 1 further includes an elastic element 17, one end of the elastic element 17 is fixed to the release member 14, and the other end is fixed to the base 18, and the elastic element 17 has a tendency to pull the release member 14 to move rightward.

[0069] Specifically, the elastic element 17 may be a spring, which is responsible for providing necessary power to the tripping member 14 so that the circuit breaker can be disconnected quickly to prevent further damage.

[0070] The operation module is used to control the closing and opening execution module 1 to open or close the switch; the operation module includes a manual submodule 2 and an automatic submodule 3, and both submodules can independently control the closing and opening execution module 1 to open or close the switch.

[0071] Continue to use Figure 1 , Figure 2 The manual submodule 2 includes: a connecting rod 21 and a handle 22; wherein the handle 22 includes a handle operating portion 221 and a handle connecting rod portion 222; the handle connecting rod portion 222 is provided with a fixing hole, one end of the connecting rod 21 is placed in the fixing hole, and the other end extends to the locking hole on the locking member 13, which is used to transmit the movement of the handle operating portion 221 to the locking member 13, so as to drive the moving contact 11 to engage or separate with the static contact 12.

[0072] Specifically, Figure 1As shown, the closing and opening execution module 1 is in the opening state. When closing the circuit manually, the handle operating part 221 is pulled to make the handle 22 rotate clockwise to drive the connecting rod 21 to move. At the same time, after the connecting rod 21 moves, it drives the lock to move to move the moving contact 11 toward the static contact 12, so that the moving and static contacts 12 are closed, and the intelligent circuit breaker is turned on.

[0073] like Figure 2 As shown, the closing and opening execution module 1 is in the closing state. When opening the circuit manually, the handle operating part 221 is pulled to rotate the handle 22 counterclockwise to drive the connecting rod 21 to move. At the same time, after the connecting rod 21 moves, it drives the lock to move so that the moving contact 11 moves toward the static contact 12, so that the moving and static contacts are separated, and the intelligent circuit breaker is turned on.

[0074] like Figure 3 , Figure 4 The figure shows the specific structure of the automatic submodule. The automatic submodule 3 includes: a control unit 31, a drive unit 32, and a transmission unit 33; wherein the control unit 31 is connected to the drive unit 32, and is used to send a motion instruction to the drive unit 32; the drive unit 32 is connected to the transmission unit 33, and drives the transmission module according to the received motion instruction; the transmission unit 33 is connected to the closing and opening execution module 1, and is used to drive the closing and opening execution module 1 to open or close the switch.

[0075] In some embodiments, the driving unit 32 is a motor 321 , including a DC motor 321 , a stepper motor 321 , and a servo motor 321 .

[0076] Specifically, a small DC motor is an actuator that can convert electrical energy into mechanical energy. Due to its small size, high efficiency, simple control, and fast response speed, it is suitable for use as a drive module for various portable devices and compact mechanisms. A stepper motor is an electric pulse input type motor that can convert electric pulse signals into angular displacement or linear displacement. It controls the rotation angle by controlling the number of pulses, thereby achieving the purpose of precise positioning. A servo motor is an engine that controls the operation of mechanical elements in a servo system. It can control speed and position, has high accuracy, and fast dynamic response. Compared with stepper motors, servo motors have better performance, but the cost is also relatively high.

[0077] like Figure 5-Figure 7 As shown, the specific structure of the transmission unit 33 is shown, wherein: Figure 6 The transmission unit 33 is in the open state. Figure 7The transmission unit 33 comprises a worm 331, a worm wheel 332, a transmission wheel 333, a large gear 334, a handle transmission part 223, a linkage 335 and a push rod 336; wherein the worm 331 is arranged on the rotating shaft of the motor 321 and is connected to the worm wheel 332; the worm wheel 332 is composed of an upper worm wheel 332 and a first lower gear 3322, the transmission wheel 333 is composed of an upper second upper gear 3331 and a second lower gear 3332, the first lower gear 3322 of the worm wheel 332 is meshed with the second lower gear 3332 of the transmission wheel 333; the large gear 334 It is composed of a third upper gear 3341, a third middle gear 3342 and a third lower cam 3343, the third upper gear 3341 is meshed with the handle transmission part 223, and the third lower cam 3343 is connected to the push rod 336; the push rod 336 is connected to one end of the connecting member 335, and the other end of the connecting member 335 is connected to the release member 14, and the connecting member 335 can move upward or downward under the action of the push rod 336 to drive the release member 14 to achieve the engagement or separation of the moving contact 11 and the static contact 12 under the cooperation of the locking member 13.

[0078] When the switch is closed remotely, the control unit 31 sends a command to the driving element, i.e., the motor 321. The motor 321 rotates, causing the worm 331 to rotate, and at the same time driving the worm wheel 332 to rotate. The worm wheel 332 drives the transmission wheel 333, and the transmission can drive the large gear 334. The third upper gear 3341 of the large gear 334 is engaged with the handle transmission part 223. The large gear 334 drives the handle 22. When the handle 22 rotates, the connecting member 335 moves downward. The connecting member 335 connects the transmission unit 33 and the closing and opening execution module 1, and is used to convert the movement of the transmission module into the closing and opening execution mechanism to drive the locking member 13.

[0079] When the switch is remotely opened, the control unit 31 sends a command to the driving element, that is, the motor 321. The motor 321 rotates, causing the worm 331 to rotate, and at the same time driving the worm wheel 332 to rotate. The worm wheel 332 drives the transmission wheel 333, and the transmission wheel 333 drives the large gear 334. The third lower convex gear of the large gear 334 rotates to push the push rod 336 upward, so that the connecting member 335 is upward, driving the release member 14 to push the connecting rod 15 out of the slot 16 of the locking member 13, releasing the fixing of the locking member 13 on the moving contact 11, so that the moving contact 11 is separated from the static contact 12.

[0080] In some embodiments, the automatic submodule 3 also includes a sensor 34, which is connected to the control unit 31 and is used to collect position information of specific mechanical parts in the transmission unit 33; it is also used to send a closing signal or an opening signal to the control unit 31 according to the position information of the handle transmission part 223, so that the control unit 31 sends a stop command to stop the motor 321 from rotating.

[0081] Specifically, the sensor 34 is responsible for detecting the position of specific mechanical components in the transmission unit 33, such as the position status of the push rod 336, the linkage 335 or the handle 22, and transmits the collected position information to the control unit 31 in real time. The control unit 31 receives the position information from the sensor 34, and determines whether the transmission unit 33 has performed the corresponding closing or opening operation based on the information. Once it is confirmed that the closing or opening action has been completed, the control unit 31 will send a stop command to the motor 321 to stop its rotation.

[0082] Furthermore, the sensor 34 is an integrated circuit including a Hall element.

[0083] Specifically, the Hall element is a magnetic field sensor based on the Hall effect. When a constant current passes through the internal Hall semiconductor chip, a potential difference, namely the Hall voltage, is generated in the vertical direction. This voltage changes with the change of the magnetic field strength. The stronger the magnetic field, the higher the voltage generated. The sensor 34 includes three Hall elements and related circuits, which constitute a device for monitoring and feedback. They can detect changes in the magnetic field and judge the position information of the mechanical parts of the transmission unit 33 accordingly. In addition, these three Hall elements may include two types of integrated circuits: linear and switching. In practical applications, these sensors can be installed at key positions of the intelligent circuit breaker to capture accurate information about the handle position of the transmission unit at different operating stages (such as closing or opening the switch).

[0084] In summary, the disclosed embodiment provides an intelligent circuit breaker, which controls the closing and opening execution modules to open or close the circuit breaker through the operation module, and has two modes: manual and automatic, which increases the flexibility of operation and ensures that manual operation can still be performed to ensure safety when remote failure occurs. The use of miniaturized design components reduces the volume of the entire intelligent circuit breaker, making the structure more compact and convenient for installation and maintenance. In addition, the structure is simple, the failure rate is reduced, and the convenience of maintenance is improved.

[0085] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the claims of the present disclosure.

Claims

1. An intelligent circuit breaker, characterized in that: include: Combination and separation execution module; The operating module is used to control the closing and opening execution module to open or close the switch; the operating module includes a manual submodule and an automatic submodule, and both submodules can independently control the closing and opening execution module to open or close the switch.

2. The intelligent circuit breaker according to claim 1, characterized in that: The closing and opening execution module includes: a moving contact, a stationary contact, a locking member, a release member and a connecting rod; wherein, The static contact is fixed on the base, the moving contact is arranged opposite to the static contact, the moving contact is engaged with the static contact to achieve closing, and is separated from the static contact to achieve opening; A locking piece is provided below the moving contact, and a slot is provided on the locking piece; the connecting rod is mounted on the moving contact; when the switch is closed, one end of the connecting rod is placed in the slot of the locking piece to fix the moving contact to the stationary contact; The release member is connected to the locking member, and is used to drive the connecting rod to slide out of the slot under preset conditions, release the fixing of the moving contact by the locking member, and separate the moving contact from the static contact.

3. The intelligent circuit breaker according to claim 2, characterized in that: The card slot is a U-shaped slot.

4. The intelligent circuit breaker according to claim 2, characterized in that: The closing and opening execution module further comprises an elastic element, one end of which is fixed on the release member, and the other end of which is fixed on a base, and the elastic element has a movement tendency of pulling the release member.

5. The intelligent circuit breaker according to claim 2, characterized in that: The manual submodule includes: a connecting rod and a handle; wherein, The handle includes an operating part and a connecting rod part; the connecting rod part is provided with a fixing hole, one end of the connecting rod is placed in the fixing hole, and the other end extends to the locking hole on the locking member, which is used to transmit the movement of the operating part to the locking member to drive the moving contact to engage or separate with the static contact.

6. The intelligent circuit breaker according to claim 2, characterized in that: The automatic submodule includes: a control unit, a drive unit, and a transmission unit; wherein, The control unit is connected to the driving unit and is used to send a motion instruction to the driving unit; The driving unit is connected to the transmission unit and drives the transmission unit according to the received motion instruction; The transmission unit is connected to the closing and opening execution module, and is used to drive the closing and opening execution module to open or close the switch.

7. The intelligent circuit breaker according to claim 6, characterized in that: The driving unit is a motor, including a DC motor, a stepper motor and a servo motor.

8. The intelligent circuit breaker according to claim 7, characterized in that: The transmission unit includes a worm, a worm wheel, a transmission wheel, a large gear, a handle transmission part, a linkage and a push rod; wherein, The worm is arranged on the rotating shaft of the motor and connected to the worm wheel; The worm wheel is composed of an upper worm wheel and a first lower gear, the transmission wheel is composed of an upper second upper gear and a second lower gear, and the first lower gear of the worm wheel is meshed with the second lower gear of the transmission wheel; The large gear is composed of a third upper gear, a third middle gear and a third lower cam, the third upper gear is meshed with the handle transmission part, and the third lower cam is connected to the push rod; The push rod is connected to one end of the linkage, and the other end of the linkage is connected to the release member. The linkage can move upward or downward under the action of the push rod to drive the release member to achieve the engagement or separation of the moving contact and the static contact under the cooperation of the locking member.

9. The intelligent circuit breaker according to claim 7, characterized in that: The automatic submodule also includes a sensor, which is connected to the control unit and is used to collect position information of mechanical parts in the transmission unit; it is also used to send a closing signal or an opening signal to the control unit according to the position information, so that the control unit sends a stop command to stop the motor from rotating.

10. The intelligent circuit breaker according to claim 9, characterized in that: The sensor is an integrated circuit including a Hall element.

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