A solid-state circuit breaker

Abstract

This invention discloses a solid-state circuit breaker, relating to the field of solid-state circuit breaker technology. It includes a housing, a top plate fixedly connected to the upper side of the housing, a fixing cover fixedly connected to the upper side of the top plate, a handle on the upper side of the top plate, a separation unit on the inner side of the housing, a disassembly unit on the outer side of the housing, two wiring holes on both the left and right sides of the housing, and a top hole on the upper side of the top plate with a limit bolt inside the top hole. This solid-state circuit breaker, with its bolts, wiring holes, and handle, facilitates the connection of connecting wires to the solid-state circuit breaker. When the handle is in the open state, it contacts a stop plate on the upright plate, causing the handle to press the upright plate on the stop plate to move to the left, controlling the lowering of the lifting frame. This causes the lifting frame to lower the wires on the connecting plate, separating the connecting plate from the contact plate, cutting off the connection between the wires and the circuit breaker, and achieving absolute electrical isolation.

Description

Technical Field

[0001] This invention relates to the field of solid-state circuit breaker technology, specifically to a solid-state circuit breaker. Background Technology

[0002] Solid-state circuit breakers are electrical devices that use power semiconductor devices (such as IGBTs, MOSFETs, thyristors, etc.) instead of traditional mechanical contacts to achieve circuit switching and protection. When a circuit fault occurs, they interrupt the current extremely quickly, protecting equipment and personnel safety.

[0003] A search revealed Chinese patent application number "CN202610510647.1", which specifically describes a solid-state circuit breaker with isolation function. The circuit breaker includes a base, an operating mechanism, a rotating shaft assembly, a stationary contact assembly, a moving contact assembly, a silicon carbide module, and a terminal block. The base has an open front and contains, from top to bottom, an upper cavity, a mechanism groove, a middle cavity, and a lower groove. The operating mechanism is installed in the mechanism groove, and the rotating shaft assembly is linked to it. The stationary contact assembly is fixed in the upper cavity. The moving contact assembly is installed on the rotating shaft assembly. The silicon carbide module is located in the middle cavity. The terminal block is placed in the lower groove.

[0004] In existing fixed circuit breakers, the terminals and operating handles are independent. When the handle is turned to the open position, only the main contacts or solid-state switch unit is turned off, while external wires remain physically connected to the internal circuit of the circuit breaker through the terminals. This leads to two problems: first, microampere-level leakage current still exists after the solid-state circuit breaker is turned off, making absolute electrical isolation impossible; second, when repairing or replacing the circuit breaker, tools are still needed to loosen the terminal screws one by one, which is cumbersome and carries the risk of disconnecting wires while they are energized.

[0005] Therefore, the present invention proposes a solid-state circuit breaker to solve the aforementioned problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a solid-state circuit breaker that solves the problem that when the circuit breaker handle is moved to the open position, the connecting wires are still not separated from the circuit breaker, increasing the workload of subsequent maintenance personnel.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A solid-state circuit breaker includes a housing, a top plate fixedly connected to the upper side of the housing, a fixing cover fixedly connected to the upper side of the top plate, a handle provided on the upper side of the top plate, a separation unit provided on the inner side of the housing, a disassembly unit provided on the outer side of the housing, two wiring holes provided on both the left and right sides of the housing, a top hole provided on the upper side of the top plate, a limit bolt provided on the inner side of the top hole, the separation unit including a metal plate fixedly connected to the inner side of the housing, multiple contact plates fixedly connected to the front side of the metal plate, a fixing frame fixedly connected to the inner side of the wiring holes, and a connecting plate provided on the inner side of the fixing frame.

[0008] Preferably, a bottom rod is fixedly connected to the lower side of the connecting plate, a bottom plate is fixedly connected to the lower end of the bottom rod, a control plate is fixedly connected to the outer side of the bottom plate, a lifting rod is fixedly connected to the upper side of the control plate, the upper end of the lifting rod passes through the upper side of the top plate and is fixedly connected to a lifting frame, a U-shaped frame is fixedly connected to the upper side of the top plate, a sliding groove is provided on the upper side of the U-shaped frame, a slider is slidably connected to the inner side of the sliding groove, a vertical plate is fixedly connected to the upper side of the slider, a stop plate is provided on the outer side of the vertical plate, an L-shaped plate is fixedly connected to the inner side of the shell, and the bottom rod is slidably connected to the L-shaped plate.

[0009] Preferably, the abutment plate and the upright plate are slidably connected, a rotating block is fixedly connected to the lower side of the slider one, an inclined plate is rotatably connected to the outer side of the rotating block one, a rotating block two is fixedly connected to the upper side of the lifting frame, the inclined plate one and the rotating block two are rotatably connected, two fixing blocks one are fixedly connected to the upper side of the U-shaped frame, a sliding rod is fixedly connected between the two fixing blocks one, and a spring one is fixedly connected between the upright plate and the fixing blocks one.

[0010] Preferably, the sliding rod is slidably connected to the upright plate, the upper side of the abutment plate has a connecting hole, the outer side of the upright plate is fixedly connected to the guide plate, the outer side of the guide plate is slidably connected to the metal block, the upper side of the metal block is fixedly connected to the pressing plate, the upper side of the pressing plate is fixedly connected to the pressing block, the outer side of the metal block is rotatably connected to the inclined plate, and the inclined plate is rotatably connected to the abutment plate.

[0011] Preferably, a fixing block two and an electromagnet are fixedly connected to the outer side of the upright plate, a moving block is fixedly connected to the outer side of the metal block, an upright rod is fixedly connected to the upper side of the fixing block two, a spring two is fixedly connected between the fixing block two and the moving block, the upright rod and the moving block are slidably connected, the electromagnet is located below the metal block, and a through hole and a rectangular hole are provided on the upper side of the fixing cover.

[0012] Preferably, the disassembly unit includes branch guide rails, which are fixedly connected to the left and right sides of the housing. Two branch guide rails are provided on the same side, and a middle guide rail is provided between the two branch guide rails on the same side. The middle guide rail is fixedly connected to the housing. A guide block 1 is slidably connected to the inner side of the branch guide rail, and a fixing clamp is fixedly connected to the outer side of the guide block 1. A guide block 2 is slidably connected to the inner side of the middle guide rail, and a top frame is fixedly connected to the upper side of the guide block 2. A sliding groove 2 is provided on the upper side of the top frame, and two sliders 2 are slidably connected to the inner side of the sliding groove 2. A sliding plate is fixedly connected to the outer side of each slider 2. A side plate is fixedly connected to the outer side of the sliding plate, and an installation rod is fixedly connected to the outer side of the side plate. A movable clamp is fixedly connected to the outer end of the installation rod.

[0013] Preferably, inclined plates are rotatably connected to the upper sides of both sides of the sliders 2, and rotating blocks are rotatably connected to the outer sides of the inclined plates 3. A contact block is fixedly connected to the outer side of the rotating blocks 4, a stabilizing block is fixedly connected to the outer side of the top frame, a limit rod is fixedly connected to the outer side of the stabilizing block, a spring 3 is fixedly connected between the stabilizing block and the contact block, the limit rod is slidably connected to the contact block, and two stops are fixedly connected to the upper side of the top frame.

[0014] Preferably, a spring four is fixedly connected between the outer side of the first guide block and the inner wall of the branch guide rail, and a spring five is fixedly connected between the outer side of the second guide block and the inner wall of the middle guide rail. A moving rod is provided on the outer side of the housing. A push block is fixedly connected to one end of the moving rod, and a control block is fixedly connected to the other end of the moving rod. A connecting groove is opened on the outer side of the control block, and a linkage plate is rotatably connected to the inner side of the connecting groove. A rotating block three is fixedly connected to the upper side of the control plate. The linkage plate and the rotating block three are rotatably connected. The moving rod is slidably connected to the housing. The fixed clamping block and the moving clamping block are both arc-shaped structures. Two inclined plates three in the same group are symmetrically distributed.

[0015] This invention provides a solid-state circuit breaker. Compared with the prior art, it has the following advantages: (1) The solid circuit breaker is equipped with bolts, wiring holes and handles to facilitate the connection of the connecting wires to the solid circuit breaker. When the handle is in the open state, the handle contacts the abutment on the upright plate, causing the handle to press the upright plate on the abutment to move to the left, controlling the lifting frame to descend, causing the lifting frame to drive the wires on the connecting plate to descend, causing the connecting plate to separate from the contact plate, cutting off the connection between the wires and the circuit breaker, and achieving absolute electrical isolation.

[0016] (2) When the handle moves the vertical plate of the solid circuit breaker, the control push block moves and the control moving clamps on both sides clamp the wire and pull the wire out. The wire is separated from the connecting plate, which makes it convenient for staff to remove the wire by simply using the handle when performing maintenance. Compared with loosening the bolts, the operation is simpler. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional perspective view of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional perspective view of the three-dimensional structure of the present invention; Figure 6 This is a partial three-dimensional structural diagram of the separation unit in this invention; Figure 7 This is a three-dimensional structural diagram of the neutral plate in this invention; Figure 8 This is a frontal sectional view of the three-dimensional structure in this invention; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 This is a three-dimensional structural diagram of the disassembly unit in this invention; Figure 11 for Figure 10 Enlarged view of point C in the middle; Figure 12 This is a three-dimensional structural diagram of the disassembly unit in this invention from another perspective.

[0018] In the diagram: 1. Housing; 2. Top plate; 3. Fixing cover; 4. Perforation; 5. Handle; 6. Separation unit; 7. Rectangular hole; 8. Disassembly unit; 9. Wiring hole; 10. Top hole; 11. Limit bolt; 61. Metal plate; 62. Fixed frame; 63. Contact plate; 64. Connecting plate; 65. Base rod; 66. L-shaped plate; 67. Base plate; 68. Control plate; 69. Lifting rod; 610. Lifting frame; 611. U-shaped frame; 612. Slide groove one; 613. Slider one; 614. Rotating block one; 615. Inclined plate one; 616. Rotating block two; 617. Vertical plate; 618. Support plate; 619. Fixed block one; 620. Slide rod; 621. Spring one; 622. Connecting hole; 624. Guide plate; 625. Metal block; 626. Electromagnet; 627. Pressing plate; 628. Pressing block; 629. Inclined plate two; 630. Fixed block two; 631. Moving block; 632. Vertical rod; 633. Spring two; 81. Moving rod; 82. Control block; 83. Connecting groove; 84. Linkage plate; 85. Rotating block three; 86. Branch guide rail; 87. Guide block one; 88. Fixed clamping block; 89. Central guide rail; 810. Guide block two; 811. Top frame; 812. Push block; 813. Slide groove two; 814. Sliding block two; 815. Slide plate; 816. Stop block; 817. Side plate; 818. Mounting rod; 819. Moving clamping block; 820. Inclined plate three; 821. Rotating block four; 822. Contact block; 823. Stabilizing block; 824. Limiting rod; 825. Spring three; 826. Spring four; 827. Spring five. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides the following technical solutions: Example 1 Please see Figure 1 - Figure 7 A solid-state circuit breaker includes a housing 1, a top plate 2 fixedly connected to the upper side of the housing 1, a fixing cover 3 fixedly connected to the upper side of the top plate 2, a handle 5 provided on the upper side of the top plate 2, a separation unit 6 provided on the inner side of the housing 1, a disassembly unit 8 provided on the outer side of the housing 1, two wiring holes 9 opened on both the left and right sides of the housing 1, a top hole 10 opened on the upper side of the top plate 2, a limit bolt 11 provided on the inner side of the top hole 10, the separation unit 6 includes a metal plate 61, the metal plate 61 is fixedly connected to the inner side of the housing 1, multiple contact plates 63 are fixedly connected to the front side of the metal plate 61, a fixing frame 62 is fixedly connected to the inner side of the wiring hole 9, and a connecting plate 64 is provided on the inner side of the fixing frame 62. The number of wiring holes 9 on the same side is two, which facilitates the connection of two wires (such as live wire and neutral wire), and the wiring hole 9 on the right side is connected to the wire.

[0021] A base rod 65 is fixedly connected to the lower side of the connecting plate 64. A base plate 67 is fixedly connected to the lower end of the base rod 65. A control plate 68 is fixedly connected to the outer side of the base plate 67. A lifting rod 69 is fixedly connected to the upper side of the control plate 68. The upper end of the lifting rod 69 passes through the upper side of the top plate 2 and is fixedly connected to a lifting frame 610. A U-shaped frame 611 is fixedly connected to the upper side of the top plate 2. A sliding groove 612 is provided on the upper side of the U-shaped frame 611. A slider 613 is slidably connected to the inner side of the sliding groove 612. A vertical plate 617 is fixedly connected to the upper side of the slider 613. A stop plate 618 is provided on the outer side of the vertical plate 617. The housing 1... An L-shaped plate 66 is fixedly connected to the inner side of the frame, a bottom rod 65 is slidably connected to the L-shaped plate 66, a stop plate 618 is slidably connected to the upright plate 617, a rotating block 614 is fixedly connected to the lower side of the slider 613, an inclined plate 615 is rotatably connected to the outer side of the rotating block 614, a rotating block 616 is fixedly connected to the upper side of the lifting frame 610, an inclined plate 615 is rotatably connected to the rotating block 616, two fixing blocks 619 are fixedly connected to the upper side of the U-shaped frame 611, a slide rod 620 is fixedly connected between the two fixing blocks 619, and a spring 621 is fixedly connected between the upright plate 617 and the fixing blocks 619.

[0022] When the handle 5 is automatically triggered and in the circuit-breaking state, the handle 5 presses the vertical plate 617 on the abutment plate 618 to move to the left. The vertical plate 617 drives the slider 613 to move to the left. The slider 613 drives the inclined plate 615 to rotate. The inclined plate 615 drives the lifting frame 610 to descend. The lifting frame 610 drives the lifting rod 69 to descend. The lifting rod 69 drives the control plate 68 to descend. The control plate 68 drives the bottom rod 65 to descend. The bottom rod 65 drives the connecting plate 64 to descend, causing the connecting plate 64 to separate from the contact plate 63. Since the contact plate 63 is connected to the metal plate 61, and the metal plate 61 is connected to the circuit inside the circuit breaker, when the connecting plate 64 separates from the contact plate 63, it is equivalent to the wire separating from the metal plate 61, and the wire separating from the circuit inside the circuit breaker, achieving absolute electrical isolation.

[0023] The sliding rod 620 is slidably connected to the upright plate 617. A connecting hole 622 is provided on the upper side of the abutment plate 618. A guide plate 624 is fixedly connected to the outer side of the upright plate 617. A metal block 625 is slidably connected to the outer side of the guide plate 624. A pressing plate 627 is fixedly connected to the upper side of the metal block 625. A pressing block 628 is fixedly connected to the upper side of the pressing plate 627. A second inclined plate 629 is rotatably connected to the outer side of the metal block 625. The second inclined plate 629 is rotatably connected to the abutment plate 618. The upright plate 617... A fixed block 630 and an electromagnet 626 are fixedly connected to the outer side of the metal block 625. A movable block 631 is fixedly connected to the outer side of the metal block 625. A vertical rod 632 is fixedly connected to the upper side of the fixed block 630. A spring 633 is fixedly connected between the fixed block 630 and the movable block 631. The vertical rod 632 and the movable block 631 are slidably connected. The electromagnet 626 is located below the metal block 625. A through hole 4 and a rectangular hole 7 are provided on the upper side of the fixed cover 3. When the operator needs to connect the wire, in order to prevent the operator from accidentally pulling the handle 5 and squeezing the abutment plate 618, the operator disconnects the power supply to the electromagnet 626. The electromagnet 626 loses its magnetism, causing the electromagnet 626 to separate from the metal block 625. Since the spring 633 is in a compressed state at this time, the elastic force of the spring 633 causes the movable block 631 to rise. The movable block 631 causes the metal block 625 to rise. The metal block 625 causes the inclined plate 629 to rotate. The inclined plate 629 causes the abutment plate 618 to move to the left. The distance between the base plate 618 and the handle 5 is increased. When the handle 5 is accidentally opened, it will contact the base plate 618. At this time, the wire is limited by the limit bolt 11, and the solid-state circuit breaker can be used normally. Then, the operator presses down the pressing block 628, which drives the pressing plate 627 to descend. The pressing plate 627 drives the metal block 625 to descend, so that the base plate 618 moves to the right, making it easier for the handle 5 to contact the base plate 618. At this time, the metal block 625 is attracted and limited by the electromagnet 626.

[0024] Example 2 Based on Example 1, such as Figure 8 - Figure 12As shown, the disassembly unit 8 includes branch guide rails 86, which are fixedly connected to the left and right sides of the housing 1. Two branch guide rails 86 are provided on the same side, and a central guide rail 89 is provided between the two branch guide rails 86 on the same side. The central guide rail 89 is fixedly connected to the housing 1. A guide block 87 is slidably connected to the inner side of the branch guide rail 86, and a fixing clamp 88 is fixedly connected to the outer side of the guide block 87. A guide block 810 is slidably connected to the inner side of the central guide rail 89, and a top frame 811 is fixedly connected to the upper side of the guide block 810. A groove 813 is provided on the upper side of the top frame 811, and two sliders 814 are slidably connected to the inner side of the groove 813. Each slider 814 has a slide plate 815 fixedly connected to its outer side. A side plate 817 is fixedly connected to the outer side of each slide plate 815. A mounting rod 818 is fixedly connected to the outer side of each side plate 817. A movable clamping block 819 is fixedly connected to the outer end of the mounting rod 818. An inclined plate 820 is rotatably connected to the upper side of each slider 814. A rotating block 821 is rotatably connected to the outer side of the inclined plate 820. A contact block 822 is fixedly connected to the outer side of the rotating block 821. A stabilizing block 823 is fixedly connected to the outer side of the top frame 811. A limit rod 824 is fixedly connected to the outer side of the stabilizing block 823. A spring 825 is fixedly connected between the stabilizing block 823 and the contact block 822. Limiting rod 824 is slidably connected to contact block 822. Two stops 816 are fixedly connected to the upper side of top frame 811. Spring 4 826 is fixedly connected between the outer side of guide block 1 87 and the inner wall of branch guide rail 86. Spring 5 827 is fixedly connected between the outer side of guide block 2 810 and the inner wall of middle guide rail 89. A moving rod 81 is provided on the outer side of housing 1. Push block 812 is fixedly connected to one end of moving rod 81. Control block 82 is fixedly connected to the other end of moving rod 81. Connecting groove 83 is opened on the outer side of control block 82. Linkage plate 84 is rotatably connected to the inner side of connecting groove 83. Rotating block 3 85 is fixedly connected to the upper side of control plate 68. 84 is rotatably connected to the rotating block 85, and the moving rod 81 is slidably connected to the housing 1. The fixed clamping block 88 and the moving clamping block 819 are both arc-shaped structures. The two inclined plates 820 in the same group are symmetrically distributed. When the handle 5 presses the abutment plate 618, the control plate 68 descends, the control plate 68 drives the linkage plate 84 to rotate, the linkage plate 84 drives the control block 82 to move, the control block 82 drives the moving rod 81 to move, the moving rod 81 drives the push block 812 to move, the push block 812 drives the contact block 822 to move, the contact block 822 drives the inclined plate 820 to rotate, and the inclined plate 820 drives the slider 814 to move. Because the inclined plates 820 on both sides are symmetrically distributed... Figure 11As shown), the two sliders 814 on both sides move away from each other. The slider 814 drives the slide plate 815 to move, the slide plate 815 drives the side plate 817 to move, the side plate 817 drives the mounting rod 818 to move, and the mounting rod 818 drives the moving clamp 819 to move. The moving clamps 819 on both sides move away from each other, so that the moving clamp 819 and the fixed clamp 88 work together to clamp the two wires simultaneously. At this time, the slider 814 contacts the stop block 816, and the stop block 816 blocks the slider 814. At this time, the push block 812 continues to move horizontally, and the push block 812 drives the guide block 810 on the top frame 811 to move. The guide block 810 drives the moving clamp 819 to move, so that the moving clamp 819 pulls the wire out of the connecting plate 64, so that the wire is completely separated from the circuit breaker, which is convenient for the staff to conduct subsequent testing. And through the springs 826, 827, and 825, it is convenient to reset the fixed clamp 88 and the moving clamp 819.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] During operation, the wire is first placed on the connecting plate 64, and then the limiting bolt 11 is rotated to limit the wire, allowing the solid-state circuit breaker to operate normally. When the handle 5 is automatically in the open circuit state, the handle 5 presses the vertical plate 617 on the abutment plate 618 to move to the left. The vertical plate 617 drives the slider 613 to move to the left. Under the action of the inclined plate 615 and the lifting frame 610, the lifting frame 610 drives the control plate 68 on the lifting rod 69 to descend. The control plate 68 drives the base plate 67 to descend, and the base plate 67 drives the connecting plate 64 on the base rod 65 to descend, separating the connecting plate 64 from the contact plate 63, thus separating the wire from the solid-state circuit breaker and achieving absolute electrical isolation. At the same time, the control plate 68... The linkage plate 84 rotates, which in turn moves the moving rod 81 on the control block 82. The moving rod 81 moves the push block 812, which in turn moves the contact block 822. Under the action of the inclined plate 820, the slider 814, the slide plate 815, the side plate 817, and the mounting rod 818, the moving clamps 819 on both sides clamp the two wires. At this time, the slider 814 is blocked by the stop block 816. As the push block 812 moves, it moves the guide block 810 on the top frame 811. The guide block 810 moves the moving clamp 819, which pulls the wires out, making it convenient for maintenance personnel to check the condition of the wires. The operation is simple.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof 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.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid-state circuit breaker, comprising a housing (1), characterized in that: A top plate (2) is fixedly connected to the upper side of the housing (1), a fixing cover (3) is fixedly connected to the upper side of the top plate (2), a handle (5) is provided on the upper side of the top plate (2), a separation unit (6) is provided on the inner side of the housing (1), a disassembly unit (8) is provided on the outer side of the housing (1), two wiring holes (9) are opened on both the left and right sides of the housing (1), a top hole (10) is opened on the upper side of the top plate (2), a limit bolt (11) is provided on the inner side of the top hole (10), the separation unit (6) includes a metal plate (61), the metal plate (61) is fixedly connected to the inner side of the housing (1), a plurality of contact plates (63) are fixedly connected to the front side of the metal plate (61), a fixing frame (62) is fixedly connected to the inner side of the wiring hole (9), and a connecting plate (64) is provided on the inner side of the fixing frame (62).

2. A solid-state circuit breaker according to claim 1, characterized in that: A bottom rod (65) is fixedly connected to the lower side of the connecting plate (64). A bottom plate (67) is fixedly connected to the lower end of the bottom rod (65). A control plate (68) is fixedly connected to the outer side of the bottom plate (67). A lifting rod (69) is fixedly connected to the upper side of the control plate (68). The upper end of the lifting rod (69) passes through the upper side of the top plate (2) and is fixedly connected to a lifting frame (610). A U-shaped frame (611) is fixedly connected to the upper side of the top plate (2). A sliding groove (612) is provided on the upper side of the U-shaped frame (611). A slider (613) is slidably connected to the inner side of the sliding groove (612). A vertical plate (617) is fixedly connected to the upper side of the slider (613). A stop plate (618) is provided on the outer side of the vertical plate (617). An L-shaped plate (66) is fixedly connected to the inner side of the shell (1). The bottom rod (65) is slidably connected to the L-shaped plate (66).

3. A solid-state circuit breaker according to claim 2, characterized in that: The abutment plate (618) is slidably connected to the upright plate (617). The lower side of the slider one (613) is fixedly connected to the rotating block one (614). The outer side of the rotating block one (614) is rotatably connected to the inclined plate one (615). The upper side of the lifting frame (610) is fixedly connected to the rotating block two (616). The inclined plate one (615) and the rotating block two (616) are rotatably connected. The upper side of the U-shaped frame (611) is fixedly connected to two fixing blocks one (619). The two fixing blocks one (619) are fixedly connected to a slide rod (620). The upright plate (617) and the fixing block one (619) are fixedly connected to a spring one (621).

4. A solid-state circuit breaker according to claim 3, characterized in that: The slide rod (620) is slidably connected to the upright plate (617). A connecting hole (622) is provided on the upper side of the abutment plate (618). A guide plate (624) is fixedly connected to the outer side of the upright plate (617). A metal block (625) is slidably connected to the outer side of the guide plate (624). A pressing plate (627) is fixedly connected to the upper side of the metal block (625). A pressing block (628) is fixedly connected to the upper side of the pressing plate (627). An inclined plate (629) is rotatably connected to the outer side of the metal block (625). The inclined plate (629) is rotatably connected to the abutment plate (618).

5. A solid-state circuit breaker according to claim 4, characterized in that: The outer side of the upright plate (617) is fixedly connected to a second fixed block (630) and an electromagnet (626). The outer side of the metal block (625) is fixedly connected to a moving block (631). The upper side of the second fixed block (630) is fixedly connected to a vertical rod (632). The second fixed block (630) and the moving block (631) are fixedly connected to a second spring (633). The vertical rod (632) and the moving block (631) are slidably connected. The electromagnet (626) is located below the metal block (625). The upper side of the fixed cover (3) is provided with a through hole (4) and a rectangular hole (7).

6. A solid-state circuit breaker according to claim 5, characterized in that: The disassembly unit (8) includes branch guide rails (86), which are fixedly connected to the left and right sides of the housing (1). There are two branch guide rails (86) on the same side, and a middle guide rail (89) is provided between the two branch guide rails (86) on the same side. The middle guide rail (89) is fixedly connected to the housing (1). A guide block one (87) is slidably connected to the inner side of the branch guide rail (86), and a fixing clamp (88) is fixedly connected to the outer side of the guide block one (87). A guide block two (88) is slidably connected to the inner side of the middle guide rail (89). 810), the upper side of the guide block two (810) is fixedly connected to the top frame (811), the upper side of the top frame (811) is provided with the slide groove two (813), the inner side of the slide groove two (813) is slidably connected to two slider two (814), the outer side of the two slider two (814) is fixedly connected to the slide plate (815), the outer side of the slide plate (815) is fixedly connected to the side plate (817), the outer side of the side plate (817) is fixedly connected to the mounting rod (818), and the outer end of the mounting rod (818) is fixedly connected to the movable clamping block (819).

7. A solid-state circuit breaker according to claim 6, characterized in that: Both sides of the slider two (814) are rotatably connected to the upper side of the inclined plate three (820). The outer side of the inclined plate three (820) is rotatably connected to the rotating block four (821). The outer side of the rotating block four (821) is fixedly connected to the contact block (822). The outer side of the top frame (811) is fixedly connected to the stabilizing block (823). The outer side of the stabilizing block (823) is fixedly connected to the limiting rod (824). The stabilizing block (823) and the contact block (822) are fixedly connected to the spring three (825). The limiting rod (824) and the contact block (822) are slidably connected. The upper side of the top frame (811) is fixedly connected to two stops (816).

8. A solid-state circuit breaker according to claim 7, characterized in that: A spring four (826) is fixedly connected between the outer side of the guide block one (87) and the inner wall of the branch guide rail (86). A spring five (827) is fixedly connected between the outer side of the guide block two (810) and the inner wall of the middle guide rail (89). A moving rod (81) is provided on the outer side of the housing (1). A push block (812) is fixedly connected to one end of the moving rod (81). A control block (82) is fixedly connected to the other end of the moving rod (81). A connecting groove (83) is opened on the outer side of the control block (82). A linkage plate (84) is rotatably connected to the inner side of the connecting groove (83). A rotating block three (85) is fixedly connected to the upper side of the control plate (68). The linkage plate (84) and the rotating block three (85) are rotatably connected. The moving rod (81) is slidably connected to the housing (1). The fixed clamping block (88) and the moving clamping block (819) are both arc-shaped structures. Two inclined plates three (820) in the same group are symmetrically distributed.

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