An intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via mobile phone

Abstract

The present invention discloses an intelligent circuit breaker capable of remote mobile phone controlled opening and closing, comprising a control terminal and a circuit breaker housing, wherein a circuit breaker mechanism is provided in the circuit breaker housing to realize opening and closing operations of the circuit breaker, and the control terminal realizes control operations of the circuit breaker mechanism through a remote control system. The present invention relates to the field of circuit breaker technology. The intelligent circuit breaker capable of remote mobile phone controlled opening and closing is provided with a circuit breaker mechanism. When an overcurrent or overvoltage operation occurs, the circuit breaker is automatically controlled by an overcurrent protection unit and an overvoltage protection unit to complete the opening operation. The upper metal sheet, contact plate, connecting sheet, connecting plate and arc extinguishing electrode are used to form a connected transmission surface to complete the guiding and removal operation of the instantaneous arc, thereby effectively improving the safety of the circuit breaker and solving the safety hazards caused by the arc. At the same time, the problem of the arc being unable to be introduced into the arc extinguishing chamber due to the gap or separation caused by the rotation of the metal sheet is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to an intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone. Background Art

[0002] The intelligent circuit breaker mechanism is located on the front of the breaker. It utilizes a five-link free trip mechanism designed for energy storage. During operation, the mechanism is always in the pre-energy storage position, enabling the breaker to instantly close upon receiving a closing command.

[0003] The reference patent name is: An intelligent opening and closing device for a circuit breaker (patent publication number: CN114613650A, patent publication date: 2022-06-10), comprising: a housing; a toggle member, slidably arranged in the housing, at least partially extending out of the housing and cooperating with the handle of the circuit breaker to switch the state of the circuit breaker, and at least another part of the toggle member extending out of the housing for the user to operate to toggle the toggle member; a transmission gear, rotatably arranged in the housing, and during the rotation of the transmission gear, the transmission gear cooperates with the wave member to drive the toggle member to slide between a first position and a second position; a drive assembly, arranged in the housing and connected to the transmission gear to drive the transmission gear to rotate; a control circuit board, arranged in the housing and electrically connected to the drive assembly to control the drive assembly to drive the transmission gear, and a first detection element is provided on the control circuit board to cooperate with the transmission gear to detect the position of the transmission gear.

[0004] Based on the description in the above-mentioned document, when an existing circuit breaker encounters an overcurrent or overvoltage situation, the circuit breaker will automatically perform a disconnection operation, and an electric arc will be generated to affect the internal components. The arc is extinguished by the guidance of the arc extinguishing electrode. When the disconnection operation occurs, the metal plate will be in a vertical state and rotated. The opening and closing of the circuit breaker will cause a gap or separation between the metal plate and the arc extinguishing electrode, so that the arc cannot be extinguished in time when encountering an emergency. For this reason, the present invention provides an intelligent circuit breaker that can be remotely controlled by a mobile phone to open and close. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an intelligent circuit breaker that can be remotely controlled by mobile phone to open and close the circuit breaker. It solves the problem that the existing circuit breaker will automatically perform the opening operation and generate an arc that affects the internal components. The arc is extinguished by the guidance of the arc extinguishing electrode. When the opening operation occurs, the metal plate will be in a vertical state and rotated. The opening and closing of the circuit breaker will cause a gap or separation between the metal plate and the arc extinguishing electrode, so that the arc cannot be extinguished in time when encountering an emergency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone, comprising a control terminal and a circuit breaker housing, wherein a circuit breaker mechanism is provided inside the circuit breaker housing to realize the opening and closing operations of the circuit breaker, and the control terminal realizes the control operation of the circuit breaker mechanism through a remote control system, and the circuit breaker mechanism comprises:

[0007] An overcurrent protection unit is provided inside the circuit breaker housing and is connected to the upper terminal of the circuit breaker and implements control operation when an overcurrent condition is encountered;

[0008] The overvoltage protection unit is installed inside the circuit breaker housing and connected to the lower terminal of the circuit breaker, and realizes the control operation when encountering overvoltage conditions.

[0009] The arc extinguishing unit includes an arc extinguishing chamber, and a smooth arc extinguishing electrode is installed below the arc extinguishing chamber. The bottom end of the arc extinguishing electrode is connected to an upper metal sheet through a connecting unit. The upper metal sheet is electrically connected to the overcurrent protection unit and the overvoltage protection unit when the circuit breaker is closed. The rotation operation of the upper metal sheet is completed by the operating mechanism, and the extending end of the upper metal sheet is provided with an extension piece.

[0010] Preferably, the overcurrent protection unit includes:

[0011] The frame is installed above the inside of the circuit breaker housing, and a cylindrical iron core is slidably provided through the inner space and bottom side of the frame, and an electromagnetic coil is evenly wound on the surface of the cylindrical iron core;

[0012] The static contact is installed on the bottom side of the frame, and the upper terminal of the electromagnetic coil is electrically connected to the upper terminal, and the lower terminal of the electromagnetic coil is electrically connected to the end of the static contact.

[0013] Preferably, the overvoltage protection unit includes:

[0014] The lower metal sheet is connected to the upper metal sheet via a fuse and bends when the temperature rises;

[0015] The lower bracket piece is fixed to and electrically connected to the lower metal piece, and the end of the lower bracket piece is electrically connected to the lower terminal.

[0016] Preferably, the operating mechanism includes:

[0017] The control frame is rotatably mounted inside the circuit breaker housing via a support shaft, and a moving contact is mounted on the side opposite to the upper metal sheet, while a pulling assembly is provided on the lower side of the control frame and the lower side of the upper metal sheet;

[0018] The handle is rotatably mounted inside the circuit breaker housing and the toggle portion extends to the outer shell of the circuit breaker housing. The handle is connected to the control frame through a convex ring, and the convex ring and the handle are rotatably arranged. The convex ring moves in the groove set at the tail of the control frame, and a curved spring is installed on the convex column on the surface of the convex ring and the side of the frame.

[0019] Preferably, the pulling assembly includes:

[0020] The I-shaped ring rotates on one side with the middle extension of the bottom of the upper metal sheet, and moves in contact with the bottom of the control frame on the other side;

[0021] The telescopic spring is sleeved in the middle of the I-shaped ring, and one side contacts the bottom of the control frame to realize the operation of pressing the telescopic spring when the I-shaped ring and the upper metal sheet rotate relative to each other.

[0022] Preferably, the connection unit includes:

[0023] The connecting plate is connected and fixed to the bottom of the arc-extinguishing electrode, and a wrapping block is installed on the rear side of the connecting plate. The end of the upper metal sheet rotates with the inner wall of the wrapping block, and a connecting piece is connected to the inside of the connecting plate through a sliding component. A contact plate is rotatably installed inside the connecting plate, and the bottom side of the contact plate is always in close contact with the top surface of the upper metal sheet, and the surface of the contact plate slides on the top surface of the upper metal sheet through a moving component. A balancing component is provided on the side of the connecting piece close to the contact plate to control the position of the connecting piece;

[0024] The lever penetrates the control frame and can slide relative to the control frame, and rotates between the lever and the extension piece. At the same time, a baffle is installed at the bottom end of the lever, and the baffle contacts the end of the lower metal sheet.

[0025] Preferably, the sliding assembly includes a slider symmetrically fixedly mounted on the connecting piece, and a sliding groove adapted for sliding of the slider is provided on the inner side of the connecting plate and in contact with the connecting piece, and the sliding of the slider in the sliding groove enables the connecting piece to perform vertical movement operation.

[0026] Preferably, the moving assembly includes an L-shaped plate symmetrically installed on both sides of the contact plate, and symmetrical moving columns are respectively installed on opposite sides of the L-shaped plate. Moving grooves adapted to accommodate the movement of the moving columns are opened on opposite sides of the upper metal sheet, and the moving columns move inside the moving grooves to enable the contact plate to move on the top surface of the upper metal sheet and maintain continuous contact with the upper metal sheet.

[0027] Preferably, the balancing assembly includes a balancing plate, a placement slot is provided on the side of the connecting plate close to the contact plate, and the balancing plate rotates at the lower side of the placement slot, and an arc spring is installed between the balancing plate and the placement slot to drive the balancing plate to rotate.

[0028] Preferably, the extension member comprises:

[0029] The extension plate is provided with a rotating rod fixed at a groove of the extension plate, and the rotating rod and the lever are interwoven and rotated;

[0030] An extension groove is provided at the extension of the bottom surface of the upper metal sheet, and the extension plate slides inside the extension groove. Slide bars are installed on both sides of the extension plate, and a horizontal groove adapted for sliding of the slide bar is provided on the opposite side of the extension groove.

[0031] The present invention provides an intelligent circuit breaker that can be remotely controlled by mobile phone. Compared with the existing technology, it has the following advantages:

[0032] (1) The intelligent circuit breaker capable of remotely controlling the opening and closing of the circuit breaker by a mobile phone is provided with a circuit breaker mechanism. When an overcurrent or overvoltage operation occurs, the circuit breaker is automatically controlled by the overcurrent protection unit and the overvoltage protection unit to complete the opening operation. The upper metal sheet, the contact plate, the connecting sheet, the connecting plate and the arc extinguishing electrode are used to form a connected transmission surface to complete the guiding and removal operation of the instantaneous arc, thereby effectively improving the safety of the circuit breaker and solving the safety hazards caused by the arc. At the same time, it avoids the problem that the arc cannot be introduced into the arc extinguishing chamber due to the gap or separation caused by the rotation of the metal sheet.

[0033] (2) The intelligent circuit breaker capable of remotely controlling the opening and closing of the circuit breaker by a mobile phone is provided with a connection unit. When the upper metal sheet rotates, the L-shaped plate and the movable column move in the movable groove, so that the contact plate located on the top surface of the upper metal sheet moves and maintains continuous contact with the upper metal sheet. The direction of the contact plate changes, and the connecting plate moves downward so that the bottom edge of the connecting plate contacts the right side of the contact plate or the top surface of the upper metal sheet, thereby realizing that the upper metal sheet, the contact plate, the connecting plate, the connection plate and the arc extinguishing electrode form a connected transmission surface, which not only avoids the pulling caused by the rotation of the upper metal sheet, but also maintains a continuous electrical transmission surface between the upper metal sheet and the arc extinguishing electrode, thereby improving the smoothness and safety of the arc guiding.

[0034] (3) The intelligent circuit breaker capable of remotely controlling the opening and closing of the circuit breaker by a mobile phone is provided with an extension piece. Whether the rotation of the control frame is realized by automatic control or the rotation of the control frame caused by overcurrent and overvoltage, the upper metal sheet will rotate accordingly, thereby avoiding the problem of the upper metal sheet being pulled or bent due to the tension generated by the relative rotation between the upper metal sheet and the control frame, making the operation of the circuit breaker smoother, safer, and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an external three-dimensional structural diagram of the present invention;

[0036] Figure 2 is a three-dimensional structural cross-sectional view of the circuit breaker housing of the present invention;

[0037] Figure 3 This is a first-perspective internal stereoscopic structural diagram of the circuit breaker housing of the present invention;

[0038] Figure 4 A second perspective internal stereoscopic structure diagram of the circuit breaker housing of the present invention;

[0039] Figure 5 3D structural diagram of the overcurrent protection unit of the present invention;

[0040] Figure 6 3D diagram of the operating mechanism of the present invention;

[0041] Figure 7 is a three-dimensional structural diagram of the overvoltage protection unit of the present invention;

[0042] Figure 8 3D diagram of the arc extinguishing unit of the present invention;

[0043] Figure 9 For the present invention Figure 8 A magnified view of the local structure at center A;

[0044] Figure 10 It is a three-dimensional structural diagram of the connection unit of the present invention;

[0045] Figure 11 This is a three-dimensional structural exploded view of the extension piece of the present invention;

[0046] Figure 12 It is a partial three-dimensional structural diagram of the connection unit of the present invention;

[0047] Figure 13 This is a three-dimensional diagram of the internal structure of the connecting plate of the present invention;

[0048] Figure 14 For the present invention Figure 13 The local structure diagram at B in the middle;

[0049] Figure 15 This is a three-dimensional exploded view of the sliding assembly of the present invention;

[0050] Figure 16 This is a three-dimensional exploded view of the balancing component of the present invention.

[0051] In the figure: 1-control end, 2-circuit breaker housing, 3-overcurrent protection unit, 31-frame, 32-cylindrical iron core, 33-electromagnetic coil, 34-static contact, 4-overvoltage protection unit, 41-lower metal sheet, 42-lower bracket sheet, 5-arc extinguishing unit, 51-arc extinguishing chamber, 52-arc extinguishing electrode, 53-upper metal sheet, 54-extension piece, 541-extension plate, 542-rotating rod, 543-extension slot, 544-sliding bar, 545-horizontal slot, 6-connection unit, 61-connection plate, 62-wrapping block, 63-sliding assembly, 631-slider, 632-slide groove, 64-connecting plate, 65-contact plate, 66-moving assembly, 661-L-shaped plate, 662-moving column, 663-moving groove, 67-balancing assembly, 671-balancing plate, 672-placement groove, 673-arc spring, 68-lever, 69-baffle, 7-operating mechanism, 71-control frame, 72-pulling assembly, 721-I-shaped ring, 722-telescopic spring, 73-handle, 74-convex ring, 75-convex column, 76-curved spring. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] See also Figures 1-16 , the present invention provides a technical solution:

[0054] An intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone comprises a control terminal 1 and a circuit breaker housing 2. A circuit breaker mechanism is provided inside the circuit breaker housing 2 to implement the opening and closing operations of the circuit breaker. The control terminal 1 controls the circuit breaker mechanism via a remote control system. The circuit breaker mechanism comprises:

[0055] The overcurrent protection unit 3 is arranged inside the circuit breaker housing 2 and connected to the upper terminal of the circuit breaker, and performs control operations when encountering an overcurrent condition;

[0056] The overvoltage protection unit 4 is arranged inside the circuit breaker housing 2 and connected to the lower terminal of the circuit breaker, and performs control operations when encountering an overvoltage situation.

[0057] The arc extinguishing unit 5 includes an arc extinguishing chamber 51, and a smooth arc extinguishing electrode 52 is installed below the arc extinguishing chamber 51, and the bottom end of the arc extinguishing electrode 52 is connected to the upper metal sheet 53 through the connecting unit 6. The upper metal sheet 53 is electrically connected to the overcurrent protection unit 3 and the overvoltage protection unit 4 when the circuit breaker is closed, and the rotation operation of the upper metal sheet 53 is completed by the operating mechanism 7, and the extending end of the upper metal sheet 53 is provided with an extension part 54.

[0058] By providing a circuit-breaking mechanism, when an overcurrent or overvoltage operation occurs, the overcurrent protection unit 3 and the overvoltage protection unit 4 are used to realize automatic control of the circuit breaker to complete the opening operation, and the upper metal sheet 53, the contact plate 65, the connecting sheet 64, the connecting plate 61 and the arc extinguishing electrode 52 are used to form a connected transmission surface to complete the guidance and removal operation of the instantaneous arc, thereby effectively improving the safety of the circuit breaker and solving the safety hazards caused by the arc. At the same time, it avoids the problem that the arc cannot be introduced into the arc extinguishing chamber due to the gap or detachment caused by the rotation of the metal sheet.

[0059] See also Figure 3-Figure 5 , the overcurrent protection unit 3 includes:

[0060] The frame 31 is installed above the inside of the circuit breaker housing 2, and a cylindrical core 32 is slidably provided through the inner space and bottom of the frame 31, and an electromagnetic coil 33 is evenly wound on the surface of the cylindrical core 32;

[0061] The static contact 34 is mounted on the bottom side of the frame 31 , and the upper terminal of the electromagnetic coil 33 is electrically connected to the upper terminal, and the lower terminal of the electromagnetic coil 33 is electrically connected to the end of the static contact 34 .

[0062] Among them, the cylindrical iron core 32 is composed of a thick cylinder and a push rod. The push rod and the frame 31 pass through and slide, and a return spring is sleeved on the surface of the push rod. The end of the return spring is fixed to the opposite side of the thick cylinder and the frame 31, so as to realize the downward movement operation of the cylindrical iron core 32 when overcurrent occurs.

[0063] When an overcurrent occurs, the current at this time will increase several times, causing the electromagnetic coil 33 to produce an electromagnetic reaction and drive the cylindrical iron core 32 to move downward. The cylindrical iron core 32 pushes the control frame 71 to rotate, thereby realizing the power-off operation. At this time, the arc generated by the power-off will be transmitted to the arc extinguishing chamber 51 along the upper metal sheet 53, contact plate 65, connecting plate 64, connecting plate 61 and arc extinguishing electrode 52 to form a connected transmission surface for segmentation processing until it is eliminated.

[0064] See also Figure 7 , the overvoltage protection unit 4 includes:

[0065] The lower metal sheet 41 is connected to the upper metal sheet 53 via a fuse and bends when the temperature rises.

[0066] The lower bracket piece 42 is fixed to and electrically connected to the lower metal piece 41 , and an end of the lower bracket piece 42 is electrically connected to the lower terminal.

[0067] When an overvoltage occurs, the temperature of the lower metal sheet 41 will increase until it exceeds a threshold value, causing it to bend and press the lever 68 downward. At this time, the lever 68 drives the rotation of the control frame 71 to achieve the power-off operation. At this time, the arc generated by the power-off will be transmitted along the upper metal sheet 53, contact plate 65, connecting plate 64, connecting plate 61 and arc-extinguishing electrode 52 to form a connected transmission surface and be transmitted to the arc-extinguishing chamber 51 for segmentation processing until it is eliminated.

[0068] See also Figure 5-Figure 6 , the operating mechanism 7 includes:

[0069] The control frame 71 is rotatably mounted inside the circuit breaker housing 2 via a support shaft, and a moving contact is mounted on the side opposite to the upper metal sheet 53 , while a pulling assembly 72 is provided on the lower side of the control frame 71 and the lower side of the upper metal sheet 53 ;

[0070] The handle 73 is rotatably mounted inside the circuit breaker housing 2 and extends to the outer shell of the circuit breaker housing 2. The handle 73 is connected to the control frame 71 via a convex ring 74. The convex ring 74 and the handle 73 are rotatably mounted. The convex ring 74 moves in a groove provided at the rear end of the control frame 71. A curved spring 76 is installed on the surface of the convex ring 74 and the convex column 75 on the side of the frame 31.

[0071] See also Figure 6 , the pulling assembly 72 includes:

[0072] The I-shaped ring 721 rotates on one side with the middle extension of the bottom of the upper metal plate 53, and moves in contact with the bottom of the control frame 71 on the other side;

[0073] The telescopic spring 722 is sleeved in the middle of the I-shaped ring 721 , and one side contacts the bottom of the control frame 71 to achieve the operation of pressing the telescopic spring 722 when the I-shaped ring 721 and the upper metal sheet 53 rotate relative to each other.

[0074] See also Figure 7-10 and Figure 12-16 , the connection unit 6 includes:

[0075] The connecting plate 61 is connected and fixed to the bottom of the arc-extinguishing electrode 52. A wrapping block 62 is installed on the rear side of the connecting plate 61. The end of the upper metal sheet 53 rotates with the inner wall of the wrapping block 62. The interior of the connecting plate 61 is connected to a connecting piece 64 via a sliding component 63. A contact plate 65 is rotatably installed inside the connecting plate 61. The bottom side of the contact plate 65 is always in close contact with the top surface of the upper metal sheet 53. The surface of the contact plate 65 slides on the top surface of the upper metal sheet 53 via a moving component 66. A balancing component 67 is provided on the side of the connecting piece 64 close to the contact plate 65 to control the position of the connecting piece 64.

[0076] The lever 68 passes through the control frame 71 and can slide relative to the control frame 71 , and the lever 68 rotates between the extension member 54 . At the same time, a baffle 69 is installed at the bottom end of the lever 68 , and the baffle 69 contacts the end of the lower metal sheet 41 .

[0077] By providing a connecting unit 6, while the upper metal sheet 53 rotates, the L-shaped plate 661 and the movable column 662 move in the movable groove 663, so that the contact plate 65 is located on the top surface of the upper metal sheet 53 and moves and maintains continuous contact with the upper metal sheet 53. The direction of the contact plate 65 changes, and the connecting plate 64 moves downward so that the bottom edge of the connecting plate 64 contacts the right side of the contact plate 65 or the top surface of the upper metal sheet 53, thereby realizing that the upper metal sheet 53, the contact plate 65, the connecting plate 64, the connecting plate 61 and the arc extinguishing electrode 52 form a connected transmission surface, which can not only avoid the pulling caused by the rotation of the upper metal sheet 53, but also maintain a continuous electrical transmission surface between the upper metal sheet 53 and the arc extinguishing electrode 52, thereby improving the smoothness and safety during arc guiding.

[0078] See also Figure 15 The sliding assembly 63 includes a slider 631 symmetrically fixedly mounted on the connecting piece 64, and a sliding groove 632 adapted for sliding the slider 631 is provided on the inner side of the connecting plate 61 and in contact with the connecting piece 64, and the sliding of the slider 631 in the sliding groove 632 realizes the vertical movement operation of the connecting piece 64.

[0079] Furthermore, a return spring may be installed on the top of the slider 631 and on the opposite side of the slide groove 632 to provide downward force for the slider 631 .

[0080] See also Figure 13-14 The moving component 66 includes an L-shaped plate 661 symmetrically installed on both sides of the contact plate 65, and symmetrical moving columns 662 are respectively installed on the opposite sides of the L-shaped plate 661. A moving groove 663 adapted to accommodate the movement of the moving column 662 is opened on the opposite side of the upper metal sheet 53, and the moving column 662 moves inside the moving groove 663 to realize the movement of the contact plate 65 on the top surface of the upper metal sheet 53 and maintain continuous contact with the upper metal sheet 53.

[0081] See also Figure 15-16 The balancing assembly 67 includes a balancing piece 671, which is provided with a placement slot 672 on the side of the connecting piece 64 close to the contact plate 65, and the balancing piece 671 is rotated at the lower side of the placement slot 672, and an arc spring 673 is installed between the balancing piece 671 and the placement slot 672 to drive the balancing piece 671 to rotate.

[0082] When the upper metal sheet 53 is higher on the right side and lower on the left side, the balancing sheet 671 on the connecting sheet 64 contacts the right side surface of the contact plate 65. Conversely, the balancing sheet 671 on the connecting sheet 64 directly contacts the top surface of the upper metal sheet 53, and the bottom edge of the connecting sheet 64 also directly contacts the top surface of the upper metal sheet 53.

[0083] See also Figure 11 , the extension member 54 includes:

[0084] The extension plate 541 has a rotating rod 542 fixed to the groove of the extension plate 541 , and the rotating rod 542 and the lever 68 rotate through each other;

[0085] An extension groove 543 is provided at the extension of the bottom surface of the upper metal plate 53, and the extension plate 541 slides inside the extension groove 543, and sliding bars 544 are installed on both sides of the extension plate 541, and horizontal grooves 545 adapted to the sliding of the sliding bars 544 are provided on the opposite side of the extension groove 543.

[0086] By providing the extension piece 54, whether the rotation of the control frame 71 is achieved by automatic control or the rotation of the control frame 71 caused by overcurrent and overvoltage, the upper metal sheet 53 will rotate accordingly, thereby avoiding the problem of relative rotation between the upper metal sheet 53 and the control frame 71 generating tension that causes the upper metal sheet 53 to be pulled or bent, making the operation of the circuit breaker smoother, safer, and more convenient.

[0087] The remote control system includes a mobile phone terminal and a wireless transmission module, and the wireless transmission module transmits the instructions of the mobile phone terminal to the control terminal 1 through the 5G network, and uses the control terminal 1 to drive the handle 73 in the circuit breaker housing 2 to perform opening and closing operations.

[0088] By setting up a remote control system, the mobile phone is used to generate control instructions for the circuit breaker, and the instructions are transmitted based on the 5G network transmitted between the mobile phone and the circuit breaker. After the instructions are received by the control terminal 1, the handle is controlled to complete the opening or closing operation.

[0089] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0090] During operation, the mobile phone or control panel is used to transmit the command, and then the command is transmitted to the control terminal 1 through the wireless transmission module to control the opening and closing operation of the handle 73 in the circuit breaker;

[0091] When the handle 73 is closed downward, the convex ring 74 drives the control frame 71 to rotate, and the control frame 71 drives the extension of the curved spring 76, while the I-shaped ring 721 drives the compression of the telescopic spring 722. The moving contact on the control frame 71 presses the upper metal plate 53 to rotate, and the upper metal plate 53 is separated from the static contact 34, thereby completing the upper side electrical separation operation;

[0092] During the rotation of the upper metal sheet 53, the extended end of the upper metal sheet 53 rotates between the extension plate 541 and the lever 68, and the sliding bar 544 slides in the horizontal groove 545 to move the extension plate 541 along the extension direction of the metal sheet, and the lever 68 also moves downward.

[0093] As the upper metal sheet 53 rotates, the L-shaped plate 661 and the movable column 662 move in the movable groove 663, so that the contact plate 65 located on the top surface of the upper metal sheet 53 moves and maintains continuous contact with the upper metal sheet 53. At the same time, as the direction of the contact plate 65 changes, the connecting piece 64 moves downward so that the bottom edge of the connecting piece 64 contacts the right side of the contact plate 65 or the top surface of the upper metal sheet 53, thereby realizing that the upper metal sheet 53, the contact plate 65, the connecting piece 64, the connecting plate 61 and the arc-extinguishing electrode 52 form a connected transmission surface;

[0094] When an overcurrent occurs, the current will increase several times, causing the electromagnetic coil 33 to produce an electromagnetic reaction, which drives the cylindrical iron core 32 to move downward. The cylindrical iron core 32 then actuates the rotation of the control frame 71, thereby achieving a power-off operation. At this time, the arc generated by the power-off will be transmitted along the transmission surface formed by the upper metal sheet 53, the contact plate 65, the connecting piece 64, the connecting plate 61 and the arc-extinguishing electrode 52 to the arc-extinguishing chamber 51 for segmentation processing until it is extinguished.

[0095] When an overvoltage occurs, the temperature of the lower metal sheet 41 will rise until it exceeds a threshold value, causing it to bend and press the lever 68 downward. At this time, the lever 68 drives the rotation of the control frame 71 to achieve the power-off operation and simultaneously complete the arc removal operation.

[0096] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0097] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent circuit breaker capable of remotely controlling opening and closing of a circuit breaker via a mobile phone, comprising a control terminal (1) and a circuit breaker housing (2), wherein a circuit breaker mechanism is provided inside the circuit breaker housing (2) for realizing opening and closing operations of the circuit breaker, and the control terminal (1) realizes control operations of the circuit breaker mechanism via a remote control system, and the remote control system is controlled by a person's mobile phone and uses a 5G network to transmit instructions to the control terminal (1) to control the opening and closing operations of the circuit breaker, characterized in that: The circuit breaker mechanism includes: An overcurrent protection unit (3) is arranged inside the circuit breaker housing (2) and connected to the upper terminal of the circuit breaker, and performs a control operation when an overcurrent condition occurs; An overvoltage protection unit (4) is arranged inside the circuit breaker housing (2) and connected to the lower terminal of the circuit breaker, and performs control operations when an overvoltage condition occurs; The arc extinguishing unit (5) comprises an arc extinguishing chamber (51), and a smooth arc extinguishing electrode (52) is installed below the arc extinguishing chamber (51), and the bottom end of the arc extinguishing electrode (52) is connected to an upper metal sheet (53) through a connecting unit (6), and the upper metal sheet (53) is electrically connected to the overcurrent protection unit (3) and the overvoltage protection unit (4) when the circuit breaker is closed, and the rotation operation of the upper metal sheet (53) is completed by the operating mechanism (7), and the extended end of the upper metal sheet (53) is provided with an extension piece (54); The connection unit (6) comprises: A connecting plate (61) is connected and fixed to the bottom of the arc extinguishing electrode (52), a wrapping block (62) is installed on the rear side of the connecting plate (61), and the end of the upper metal sheet (53) rotates with the inner wall of the wrapping block (62), and a connecting piece (64) is connected to the inside of the connecting plate (61) through a sliding component (63), and a contact plate (65) is rotatably installed inside the connecting plate (61), and the bottom side of the contact plate (65) is always in close contact with the top surface of the upper metal sheet (53), and the surface of the contact plate (65) is slid on the top surface of the upper metal sheet (53) through a moving component (66), and a balancing component (67) is provided on the side of the connecting piece (64) close to the contact plate (65) to control the position of the connecting piece (64); The lever (68) rotates between the lever (68) and the extension member (54), and a baffle (69) is installed at the bottom end of the lever (68), and the baffle (69) contacts the end of the lower metal sheet (41); The moving assembly (66) includes an L-shaped plate (661) symmetrically mounted on both sides of the contact plate (65), and symmetrical moving columns (662) are respectively mounted on opposite sides of the L-shaped plate (661). A moving groove (663) adapted for the moving columns (662) to move is provided on the opposite side of the upper metal sheet (53), and the moving columns (662) move inside the moving groove (663) to enable the contact plate (65) to move on the top surface of the upper metal sheet (53) and maintain continuous contact with the upper metal sheet (53); The balancing assembly (67) includes a balancing piece (671) having a placement groove (672) formed on one side of the connecting piece (64) close to the contact plate (65). The balancing piece (671) is positioned below the placement groove (672) and rotates. An arc spring (673) is installed between the balancing piece (671) and the placement groove (672) to drive the balancing piece (671) to rotate.

2. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone according to claim 1, characterized in that: The overcurrent protection unit (3) comprises: A frame (31) is installed above the inside of the circuit breaker housing (2), and a cylindrical iron core (32) is slidably provided through the inner space and the bottom side of the frame (31), and an electromagnetic coil (33) is evenly wound on the surface of the cylindrical iron core (32); The static contact (34) is installed on the bottom side of the frame (31), and the upper terminal of the electromagnetic coil (33) is electrically connected to the upper terminal, and the lower terminal of the electromagnetic coil (33) is electrically connected to the end of the static contact (34).

3. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone according to claim 2 is characterized in that: The overvoltage protection unit (4) comprises: The lower metal sheet (41) is connected to the upper metal sheet (53) via a fuse and generates a bending operation when the temperature becomes high; The lower bracket piece (42) is fixed to and electrically connected to the lower metal piece (41), and the end of the lower bracket piece (42) is electrically connected to the lower terminal.

4. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone according to claim 3 is characterized in that: The operating mechanism (7) comprises: A control frame (71) is rotatably mounted inside the circuit breaker housing (2) via a support shaft, and a moving contact is mounted on the side opposite to the upper metal sheet (53), while a pulling assembly (72) is provided on the lower side of the control frame (71) and the lower side of the upper metal sheet (53); A handle (73) is rotatably mounted inside the circuit breaker housing (2) and has a toggle portion extending to the outer shell of the circuit breaker housing (2). The handle (73) is connected to the control frame (71) via a convex ring (74). The convex ring (74) and the handle (73) are rotatably mounted. The convex ring (74) moves in a groove provided at the tail of the control frame (71). A curved spring (76) is mounted on a convex column (75) located on the surface of the convex ring (74) and the side of the frame (31).

5. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via mobile phone according to claim 4 is characterized in that: The pulling assembly (72) includes: The I-shaped ring (721) rotates on one side with the middle extension of the bottom of the upper metal sheet (53), and moves in contact with the bottom of the control frame (71) on the other side; The telescopic spring (722) is sleeved in the middle of the I-shaped ring (721), and one side contacts the bottom of the control frame (71) to realize the operation of pressing the telescopic spring (722) when the I-shaped ring (721) and the upper metal sheet (53) rotate relative to each other.

6. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone according to claim 1 is characterized in that: The sliding assembly (63) includes a slider (631) symmetrically fixedly mounted on the connecting piece (64), and a sliding groove (632) adapted for sliding of the slider (631) is provided on the inner side of the connecting plate (61) and in contact with the connecting piece (64), and the sliding of the slider (631) in the sliding groove (632) enables the connecting piece (64) to perform a vertical movement operation.

7. The intelligent circuit breaker capable of remotely controlling opening and closing of the circuit breaker via a mobile phone according to claim 1, characterized in that: The extension member (54) comprises: The extension plate (541) is provided with a rotating rod (542) fixed at a groove of the extension plate (541), and the rotating rod (542) and the lever (68) are interwoven and rotated; An extension groove (543) is provided at the extension portion of the bottom surface of the upper metal sheet (53), and the extension plate (541) slides inside the extension groove (543). Slide bars (544) are installed on both sides of the extension plate (541), and a horizontal groove (545) adapted for sliding the slide bar (544) is provided on the opposite side of the extension groove (543).

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