Quick-plug circuit breaker for easy closing

Abstract

A quick-plug, easy-to-close circuit breaker includes a circuit breaker housing, a button mechanism, a lever mechanism, and a trip mechanism disposed within the housing. The circuit breaker's line inlet and the button mechanism are disposed at one end of the housing. The button mechanism includes a button. A button hole is provided on an operating surface at one end of the housing. The button is slidably mounted within the button hole of the housing. One end of the button is an operating end extending outside the housing for a pressing operation. The line inlet protrudes from a plane where the button hole is located for plugging with a power supply device. When the line inlet is plugged into the power supply device, the button can be simultaneously pressed by the panel of the power supply device to close the circuit breaker, thereby achieving a closing function and simplifying operation.

Description

Technical Field

[0001] The invention belongs to the field of low-voltage electrical appliances and relates to a circuit breaker, in particular to a quick-insert and easy-to-close circuit breaker. Background Art

[0002] Most existing miniature circuit breakers use rocker-style handles for closing and opening. With the miniaturization of circuit breakers and the increasing demands for equipment installation, these handles no longer meet practical operational requirements. Existing circuit breakers also use push-button closing and opening operations, particularly plug-in circuit breakers. However, these still require plugging and mating before closing, making the operation more complex. Summary of the Invention

[0003] The object of the present invention is to overcome the defects of the prior art and provide a quick-insert circuit breaker with easy closing function.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A quick-plug, easy-to-close circuit breaker includes a circuit breaker housing, a button mechanism, a lever mechanism, and a trip mechanism disposed within the housing. The circuit breaker's line inlet and the button mechanism are disposed at one end of the housing. The button mechanism includes a button having a button hole disposed on an operating surface at one end of the housing. The button is slidably mounted within the button hole of the housing. One end of the button is an operating end extending outside the housing for a pressing operation. The line inlet protrudes from a plane where the button hole is located for plugging with a power supply device, such that when the line inlet is plugged into the power supply device, the button can be simultaneously pressed by the panel of the power supply device to close the circuit.

[0006] Preferably, after the circuit breaker is closed, the button is completely retracted into the circuit breaker housing; when the circuit breaker is tripped and opened, the button can remain retracted into the circuit breaker housing.

[0007] Preferably, the incoming line terminal and the button mechanism of the circuit breaker are arranged at one end of the circuit breaker housing, and the outgoing line terminal is arranged at the other end of the circuit breaker housing. The outgoing line terminal and the button mechanism are respectively located on both sides of one end of the circuit breaker housing. The tripping mechanism is an electromagnetic system, and the electromagnetic system is arranged at the other end of the circuit breaker housing. The lever mechanism, moving contact, static contact and arc extinguishing device are located in the middle of the circuit breaker housing. The lever mechanism and moving contact are located on one side of the middle of the circuit breaker housing and between the outgoing line terminal and the electromagnetic system. The arc extinguishing device and static contact are located on the other side of the middle of the circuit breaker housing and between the button mechanism and the electromagnetic system.

[0008] Preferably, the incoming line end includes an L-pole contact plate and an N-pole contact plate, one end of the L-pole contact plate and the N-pole contact plate both protrude from the plane where the button hole is located for plug-in electrical connection, the other end of the L-pole contact plate is electrically connected to the moving contact, and the other end of the N-pole contact plate is electrically connected to the coil of the electromagnetic system; the outgoing line end includes an L-pole terminal block, one end of the L-pole terminal block extends out of the circuit breaker housing for plug-in electrical connection, and the other end of the L-pole terminal block is connected to the static contact through the coil of the electromagnetic system.

[0009] Preferably, a plug-in protection portion is provided at the end of the circuit breaker housing where the line input terminal is provided, and the end of the L-pole contact plate and the N-pole contact plate protruding from the plane where the button hole is located is arranged in the plug-in protection portion, and the circuit breaker is plugged into and matched with the power supply device through the plug-in protection portion.

[0010] Preferably, the axial direction of the coil of the electromagnetic system is arranged perpendicular to the sliding direction of the button, the N-pole contact plate is arranged on one side of the circuit breaker housing and connected to one end of the coil, the L-pole terminal block is arranged on the other side of the circuit breaker housing and connected to the other end of the coil, the arc extinguishing device and the static contact are arranged between the L-pole terminal block and the button mechanism, the lever mechanism and the moving contact are located between the L-pole terminal block and the arc extinguishing device, the arc extinguishing device includes an arc extinguishing chamber and a plurality of arc extinguishing grids arranged in the arc extinguishing chamber, one end of the static contact provided with a static contact point extends into the arc extinguishing chamber, and the other end is connected to the other end of the coil, and the arc extinguishing chamber has an opening at one end facing the side provided with the lever mechanism and the moving contact.

[0011] Preferably, the button mechanism includes a button, a connecting rod and a reset spring. The button is slidably installed in a button hole at one end of the circuit breaker housing. The button is connected to the lever mechanism through the connecting rod. The reset spring provides the button with a reset force to drive the button out of the circuit breaker housing.

[0012] Preferably, the lever mechanism includes a rotating shaft, a tripping rod, a linkage and a lock; the rotating shaft is rotatably installed in the circuit breaker housing, the rotating shaft is driven and connected to the button through a connecting rod, and the rotating shaft is hinged to the tripping rod, the tripping rod and the lock are rotatably installed on the linkage, and the tripping rod and the lock are hastily connected, the lock spring drives the lock to rotate in the direction of hasp connection with the tripping rod, and the linkage is connected to the moving contact.

[0013] Preferably, the tripping mechanism is an electromagnetic system, which cooperates with the lock of the lever mechanism through a tripping transmission member. The electromagnetic system includes an armature rotatably installed in the shell. The electromagnetic system drives the tripping transmission member through the armature to move the lock to release the lock and the buckle connection between the lock and the tripping rod.

[0014] Preferably, the circuit breaker further comprises a bracket, the bracket comprising two bracket side plates arranged relatively spaced apart, and a first bracket shaft, a second bracket shaft, a third bracket shaft, and a fourth bracket shaft connected between the two bracket side plates; the rotating shaft is rotatably mounted on the first bracket shaft through a rotating shaft spring, the tripping transmission member is rotatably mounted on the second bracket shaft, the moving contact is rotatably mounted on the third bracket shaft, and the armature is rotatably mounted on the fourth bracket shaft, and the first bracket shaft, the second bracket shaft, the third bracket shaft, and the fourth bracket shaft are arranged in sequence from one end to the other end of the bracket side plate.

[0015] Preferably, the electromagnetic system includes a coil, a coil frame, an oil cup and an armature, the oil cup is provided with an oily medium, an iron core and an iron core return spring, the oil cup is installed in the coil frame, the coil is wound on the coil frame, the armature is rotatably arranged in the circuit breaker housing, and one end of the armature is arranged opposite to one end of the iron core.

[0016] Preferably, the linkage is in a U-shaped structure, the jumper rod is in a sheet-like structure, a jumper hook for cooperating with a lock hasp is provided on one side edge of the jumper rod, one end of the jumper rod extends into the U-shaped groove of the U-shaped structure of the linkage and is hinged to the linkage, the lock includes a lock shaft, a lock portion is provided on the lock shaft, the lock shaft is inserted into the side walls on both sides of the U-shaped structure of the linkage, and the lock portion on the lock shaft cooperates with the jumper hook of the jumper rod in the U-shaped groove of the U-shaped structure.

[0017] Preferably, one side of the locking portion is an arc surface that engages with the jumping hook of the jumping rod, and the other side is a half-axis notch for avoiding the jumping hook of the jumping rod.

[0018] Preferably, both side walls of the U-shaped structure of the linkage member are provided with a first linkage hole for hinged connection with the tripping rod, a second linkage hole for installing the lock, and a third linkage hole for connecting with the moving contact.

[0019] Preferably, on both side walls of the U-shaped structure, a limiting groove for limiting the rotation angle of the lock buckle is provided on one side of the second linkage hole, and an avoidance groove for avoiding the rotation of the jump buckle rod is provided on the bottom wall of the U-shaped structure.

[0020] Preferably, one end of the jumper rod is provided with a first jumper hinge hole for hinged to the rotating shaft, and the other end is provided with a second jumper hinge hole for hinged to the linkage member, and a jumper hook for cooperating with the lock buckle is provided on one side of the jumper rod.

[0021] Preferably, the lock includes a lock plate, a lock shaft protruding from one side of the lock plate, and a lock drive shaft protruding from the other side of the lock plate, a lock part is provided in the middle of the lock shaft, one side of the lock part is an arc surface that engages with the jump hook of the jump rod, and the other side is a half-axis notch for avoiding the jump hook of the jump rod; a lock limiting shaft is also provided on the side of the lock plate where the lock shaft is provided, and the lock is rotatably installed on the linkage part through the lock shaft, and the lock spring drives the lock limiting shaft of the lock to rotate and limit the side close to the linkage part.

[0022] Preferably, one end of the shaft is provided with a shaft rotation hole, and the other end is extended with two shaft hinge arms arranged relatively spaced apart, the two shaft hinge arms are provided with shaft hinge holes, and one end of the jumper rod extends into and is hinged between the two shaft hinge arms.

[0023] Preferably, the rotating shaft is provided with a rotating shaft hole for rotating the rotating shaft, a rotating shaft connecting hole for connecting to the connecting rod, and a rotating shaft hinge hole for hinged connection to the jumper rod. A rotating shaft limiting rib is raised on one side of the rotating shaft, and the rotating shaft limiting rib is in an arc shape for cooperating with the bracket limiting guide.

[0024] Preferably, a moving contact is provided at one end of the moving contact, and a moving contact mounting portion is provided at the other end. The moving contact mounting portion is a U-shaped structure, and both side walls of the U-shaped structure are provided with moving contact rotation holes for rotating the moving contact, and moving contact drive holes for connecting with the linkage.

[0025] Preferably, the moving contact driving hole is located between the moving contact rotation hole and the moving contact point, the moving contact point is located on the outside of the moving contact end away from the U-shaped structure, and the moving contact rotation hole is a long waist-shaped hole.

[0026] Preferably, the circuit breaker is in the shape of a right parallelepiped as a whole, and the cross section of the circuit breaker parallel to the thickness of the circuit breaker is rectangular.

[0027] Preferably, when the circuit breaker is in a closed state, when the button is not blocked, the reset spring drives the button mechanism to reset and drives the lever mechanism to automatically open the circuit breaker.

[0028] Preferably, when the circuit breaker is in the closed state, the pull button mechanism drives the lever mechanism to open the circuit breaker; and a pull notch is provided on one side of the button hole of the circuit breaker to facilitate the operation of the button.

[0029] The quick-plug, easy-to-close circuit breaker of the present invention has an inlet terminal and a button arranged on the same side of the switch. The inlet terminal protrudes from the plane where the button hole is located and is used for plugging and cooperating with a power supply device. When the inlet terminal is inserted into a power supply device such as a plug or a power supply terminal, the button is synchronously pressed by an external force via the panel of the power supply device, thereby realizing the closing function, and the operation is simple.

[0030] Furthermore, the switch of the present invention features a compact layout with the incoming line terminal and button positioned at the top, the electromagnetic system and outgoing line terminal at the bottom, the tripping transmission element and armature positioned on the left side of the center, the arc extinguishing device positioned on the right side of the center, and the lever mechanism positioned in the center. Furthermore, the circuit breaker has an overall right parallelepiped shape, with a rectangular cross-section parallel to the thickness of the circuit breaker, facilitating the parallel assembly of multiple circuit breakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the internal layout of the circuit breaker in the open state of the present invention;

[0032] Figure 2 Schematic diagram of the internal layout of the circuit breaker of the present invention in the closed state (with the bracket 7 removed);

[0033] Figure 3 This is a schematic diagram of the circuit breaker armature being in the energized state of the present invention, and the button being pressed by the plug or the panel at the power end and unable to be reset after the circuit breaker trips;

[0034] Figure 4 is an exploded view of the circuit breaker of the present invention;

[0035] Figure 5 is an exploded view of the lever mechanism of the circuit breaker of the present invention;

[0036] Figure 6 is an exploded view of the latch of the lever mechanism of the circuit breaker of the present invention;

[0037] Figure 7 Schematic diagram of the tripping of the lever mechanism of the circuit breaker of the present invention. DETAILED DESCRIPTION

[0038] The specific embodiments of the circuit breaker of the present invention are further described below with reference to the accompanying drawings. The circuit breaker of the present invention is not limited to the description of the following embodiments.

[0039] like Figure 1 As shown, the circuit breaker of the present invention includes a circuit breaker housing 2, and a button mechanism, a lever mechanism, a tripping mechanism and an arc extinguishing device arranged in the circuit breaker housing 2. The button mechanism is connected to the lever mechanism, the lever mechanism is connected to the moving contact 11, and the static contact 17 is arranged in the circuit breaker housing 2 and corresponds to the moving contact 11. When an external force presses the button mechanism, the button mechanism drives the moving contact 11 to move and contact the static contact 17 through the lever mechanism to achieve circuit breaker closing. The lever mechanism includes a lock 10 with a snap connection. When a fault occurs in the circuit breaker, such as a short circuit or overload, the tripping mechanism drives the lock 10 to release the snap connection to trip the lever mechanism, thereby achieving tripping and opening.

[0040] like Figure 1-3As shown, a quick-insert, easy-to-close circuit breaker of the present invention includes a circuit breaker housing 2, and a button mechanism, a lever mechanism, a trip mechanism, and an arc extinguishing device disposed within the housing 2. The circuit breaker's incoming line terminal and the button mechanism are disposed at one end of the housing 2, while the outgoing line terminal is disposed at the other end of the housing 2. The button mechanism includes a button 3 having a button hole 201 defined on an operating surface at one end of the housing 2. The button 3 is slidably mounted within the button hole 201 of the housing 2. One end of the button 3, serving as an operating end, extends from the button hole 201 outside the housing 2 for pressing, while the other end extends into the housing 2. Pressing the button 3 causes the button 3 to fully retract into the housing 2. The incoming line end protrudes from the plane where the button hole 201 is located, and is used to be plugged in and electrically connected to a power supply device such as a plug or a power supply end, so that when the incoming line end is plugged in to a power supply device such as a plug or a power supply end, the button 3 is simultaneously pressed by the panel of the power supply device to close the circuit breaker. The button 3 realizes the press-to-close function with the help of the external force of the panel of the plug or the power supply end when the circuit breaker is inserted, and the operation is simple.

[0041] like Figure 1-3 In a preferred embodiment shown, the circuit breaker's inlet and button mechanism are located at one end of the circuit breaker housing 2, while the outlet is located at the other end. The outlet and button mechanism are located on either side of one end of the circuit breaker housing 2. The tripping mechanism is an electromagnetic system, which is located at the other end of the circuit breaker housing 2. The lever mechanism, movable contact 11, static contact 17, and arc extinguishing device are located in the middle of the circuit breaker housing 2. The lever mechanism and movable contact 11 are located on one side of the middle of the circuit breaker housing 2 and between the outlet and the electromagnetic system. The arc extinguishing device and static contact 17 are located on the other side of the middle of the circuit breaker housing 2 and between the button mechanism and the electromagnetic system. The circuit breaker of this embodiment has a compact and reasonable layout structure, which can reduce the size of the circuit breaker.

[0042] Specifically, such as Figure 1-4 As shown, the incoming line terminal includes an L-pole contact plate 1 and an N-pole contact plate 15. One end of each of the L-pole contact plate 1 and the N-pole contact plate 15 protrudes from the plane where the button hole 201 is located, allowing for plug-in electrical connection. The other end of the L-pole contact plate 1 is electrically connected to the movable contact 11 via a flexible wire, and the other end of the N-pole contact plate 15 is electrically connected to the coil 14 of the electromagnetic system. The outgoing line terminal includes an L-pole terminal block 19. One end of the L-pole terminal block 19 extends outside the circuit breaker housing 2 for plug-in electrical connection. The other end of the L-pole terminal block 19 is connected to the static contact 17 via the coil 14 of the electromagnetic system.

[0043] Preferably, a plug-in protective portion 202 is provided at the end of the circuit breaker housing 2 where the incoming line terminal is located, protruding from the plane where the button hole 201 is located. One end of the L-pole contact plate 1 and the N-pole contact plate 15 both protrude from the plane where the button hole 201 is located and are disposed within the plug-in protective portion 202. The circuit breaker plugs into and mates with a plug or power supply terminal through the plug-in protective portion 202, electrically connecting the L-pole contact plate 1 and the N-pole contact plate 15 to the plug or power supply terminal. The plug-in protective portion 202 serves to guide and isolate the L-pole contact plate 1 and the N-pole contact plate 15. A plug-in partition is also provided within the plug-in protective portion 202 to separate the L-pole contact plate 1 and the N-pole contact plate 15.

[0044] like Figure 1 、 4 As shown, the button mechanism includes a button 3, a connecting rod 5, and a reset spring 4. The button 3 is slidably mounted in a button hole 201 at one end of the circuit breaker housing 2. The button 3 is connected to the lever mechanism via the connecting rod 5. The reset spring 4 provides the button 3 with a reset force that drives the button 3 out of the circuit breaker housing 2. One end of the button 3 is the operating end, extending out of the circuit breaker housing 2 for pressing operation, and the other end extends into the circuit breaker housing 2. Pressing the button 3 can cause the button 3 to be completely retracted into the circuit breaker housing 2. Specifically, one side of the button 3 is provided with a button drive hole for connecting to the connecting rod 5. The reset spring 4 is a compression spring mounted on the bottom side of the button 3, with one end connected to the button 3 and the other end connected to a limiting rib in the circuit breaker housing 2. The push button 3 and the reset spring 4 are arranged in a straight line and are located above the arc extinguishing device.

[0045] like Figure 1 、 4 As shown in Figure 5, the lever mechanism is a four-link / five-link structure including a latch 10 with a snap connection. In this embodiment, the lever mechanism comprises a rotating shaft 6, a tripping rod 8, a linkage 9, and a latch 10. The rotating shaft 6 is rotatably mounted within the circuit breaker housing 2. The rotating shaft 6 is driven and connected to the button 3 via a connecting rod 5. The rotating shaft 6 is hinged to the tripping rod 8. The tripping rod 8 and the latch 10 are rotatably mounted on the linkage 9. The tripping rod 8 and the latch 10 are snap-connected. A latch spring 13 drives the latch 10 to rotate in the direction of the snap connection with the tripping rod 8. The latch 9 is connected to the moving contact 11. The rotating shaft 6, tripping rod 8, linkage 9, and latch 10 form a four-link / five-link structure. When the button 3 is pressed, the button 3 drives the rotating shaft 6 via the connecting rod 5. The rotating shaft 6, via the tripping rod 8 and the latch 10, drives the linkage 9 to rotate, causing the moving contact 11 to swing and contact the stationary contact 17 to close the circuit.

[0046] Preferably, the circuit breaker further includes a tripping transmission member 21, and the electromagnetic system cooperates with the lock 10 of the lever mechanism through the tripping transmission member 21 to trigger the lever mechanism to trip and realize the opening function. The tripping transmission member 21 is rotatably installed in the circuit breaker housing 2, with one end arranged opposite to the electromagnetic system and the other end arranged opposite to the lock 10 of the lever mechanism. When a fault occurs in the circuit breaker, the electromagnetic system is actuated to push one end of the tripping transmission member 21, and the other end of the tripping transmission member 21 toggles the lock 10 to release the buckle connection between the lock 10 and the tripping rod 8, so that the lever mechanism is tripped to realize the opening function.

[0047] In this embodiment, the circuit breaker cannot be opened under normal circumstances and can only be opened by the electromagnetic system in the event of a circuit overload or short circuit. As another embodiment, opening can be achieved by pulling a button mechanism. When the circuit breaker is in the closed state, the button mechanism is pulled. The button mechanism drives the rotating shaft 6 in the opening direction via the connecting rod 5. The lever mechanism drives the moving contact 11 to move and separate from the static contact 17 to open the circuit breaker. A pulling notch is provided on one side of the button hole 201 of the circuit breaker to facilitate operation of the button 3, so that the button 3 retracted into the circuit breaker housing 2 can be pulled out.

[0048] In particular, in the preferred embodiment of this embodiment, when the circuit breaker is closed, when the button 3 is not blocked by the plug or the power supply panel, the reset spring 4 resets the button mechanism. The button mechanism drives the rotating shaft 6 via the connecting rod 5, and the lever mechanism actuates the movable contact 11 to separate from the static contact 17, thereby opening the circuit breaker. In other words, the circuit breaker can only be closed when the circuit breaker is plugged into the power supply unit and the button mechanism is pressed by the power supply unit panel. When the circuit breaker is unplugged, the reset spring 4 automatically opens the circuit breaker, improving safety. Compared to the embodiment of pulling to open the circuit breaker, this embodiment requires a corresponding increase in the force of the reset spring 4 and a reduction in the over-dead-point angle of the lever mechanism.

[0049] like Figure 1 、 4 As shown, the axial direction of the coil 14 of the electromagnetic system is perpendicular to the plug-in direction of the incoming line terminal, that is, perpendicular to the sliding direction of the button 3. The N-pole contact plate 15 is located on one side of the circuit breaker housing 2 and connected to one end of the coil 14. The L-pole terminal block 19 is located on the other side of the circuit breaker housing 2 and connected to the other end of the coil 14. The arc extinguishing device and the static contact 17 are located between the L-pole terminal block 19 and the button mechanism. The lever mechanism and the movable contact 11 are located between the L-pole terminal block 19 and the arc extinguishing device. The arc extinguishing device includes an arc extinguishing chamber and multiple arc extinguishing grids disposed within the arc extinguishing chamber. The static contact 17, with one end having a static contact point, extends into the arc extinguishing chamber, and the other end is connected to the other end of the coil 14. The arc extinguishing chamber has an open end facing the side where the lever mechanism and movable contact 11 are located. In this embodiment, the tripping mechanism is an electromagnetic system, but it can also be a thermal tripping mechanism including a bimetallic strip or a leakage tripping mechanism as needed.

[0050] like Figure 1 、 4 As shown, as a preferred embodiment, the electromagnetic system is a hydraulic electromagnetic system, including a coil 14, a coil skeleton 16, an oil cup 18 and an armature 20. The oil cup 18 is provided with an oil medium, an iron core and an iron core return spring. The oil cup 18 is installed in the coil skeleton 16. The coil 14 is wound on the coil skeleton 16. The armature 20 is rotatably arranged in the circuit breaker housing 2. One end of the armature 20 is arranged opposite to one end of the electromagnetic system, that is, opposite to one end of the iron core, and the other end is arranged opposite to the trip transmission member 2. 1 are arranged relative to each other. The electromagnetic system drives the trip transmission member 21 through the armature 20 to move the lock catch 10, releasing the hasp connection between the lock catch 10 and the tripping rod 8. When an overload or short circuit occurs, the current in the coil 14 increases, the iron core moves toward the armature 20, and the armature 20 is attracted. The armature 20 rotates and pushes one end of the trip transmission member 21. The other end of the trip transmission member 21 moves the lock catch 10, releasing the hasp connection between the lock catch 10 and the tripping rod 8, causing the lever mechanism to trip and realize the circuit breaker function. Of course, the electromagnetic system can also be a traditional electromagnetic trip device. When a circuit breaker fault occurs, the trip transmission member 21 is driven by the ejection of the striker to trigger the trip.

[0051] Specifically, the circuit breaker is in the shape of a straight parallelepiped as a whole, and the cross section of the circuit breaker parallel to the thickness of the circuit breaker is rectangular. Figure 1 In the direction shown, the incoming line terminal and the button mechanism are arranged at the upper end of the circuit breaker housing 2, the incoming line terminal is located on the left side of the upper end, and the button mechanism is located on the right side of the upper end. A button hole 201 is provided on the right side of the plane on the upper side of the parallelepiped shape, and a plug-in protection portion 202 is protruding on the left side. The outgoing line terminal is arranged on the right side of the lower end, and the electromagnetic system is arranged at the lower end of the circuit breaker housing 2. The axial direction of the coil 14 of the electromagnetic system is arranged horizontally left and right. The lever mechanism and the moving contact 11 are arranged on the left side of the middle part of the circuit breaker housing 2, and the arc extinguishing device and the static contact 17 are arranged on the right side of the middle part of the circuit breaker housing 2, located between the button mechanism and the outgoing line terminal. The incoming line end includes an L-pole contact plate 1 and an N-pole contact plate 15. One end of the L-pole contact plate 1 and the N-pole contact plate 15 protrudes from the plane where the button hole 201 is located and is arranged in the plug-in protection part 202. The plug-in protection part 202 is integrally formed with the circuit breaker housing 2. The N-pole contact plate 15 is bent to the left inside the circuit breaker housing 2 and is tightly attached to the left side of the circuit breaker housing 2 and is connected to one end of the coil 14 of the electromagnetic system. The L-pole contact plate 1 is bent to the side away from the reader inside the circuit breaker housing 2 and extends from the middle of the circuit breaker housing 2 to the moving contact, and is electrically connected to the moving contact through a soft connection. The lever mechanism is stacked above the L-pole contact plate 1, the trip transmission member 21 and the armature 20 are arranged on the left, and the L-pole terminal block 19 is arranged on the right side below.

[0052] When the circuit breaker of the present invention is used, when the L-pole contact plate 1 and the N-pole contact plate 15 are plugged in, the plug or the panel at the power end acts on the button 3, and the external force simultaneously presses the button 3. The button 3 drives the rotating shaft 6 through the connecting rod 5, pushing the lever mechanism to close the switch. After the moving and static contacts are in contact, the circuit breaker is closed. Figure 2 As shown (the bracket 7 is not shown), after the button 3 is pressed by external force to close the circuit breaker, the button 3 is completely retracted into the circuit breaker housing 2.

[0053] When a fault occurs in the circuit breaker and the electromagnetic system is triggered, the electromagnetic system attracts the armature 20 (such as Figure 3 ), push one end of the trip transmission member 21 in turn, and the other end of the trip transmission member 21 moves the lock buckle 10 clockwise to release the lock buckle 10 from the tripping rod 8, thereby realizing the tripping function. Figure 3 As shown, after the circuit breaker is tripped by the electromagnetic system triggered by an overload or short circuit, the button 3 is pressed by the panel of the power supply device such as the plug or the power terminal and cannot be reset. That is, when the circuit breaker is tripped, the button 3 can remain retracted in the circuit breaker housing 2 when it is limited. In other words, the button 3 remains retracted in the circuit breaker housing 2, which does not affect the tripping function of the circuit breaker and does not affect the circuit protection function of the circuit breaker. Figure 2 、 Figure 3 At this time, the button 3 and the rotating shaft 6 are still maintained in the closed position, and the tripping rod 8 and the lock 10 release the buckle fit.

[0054] When button 3 is not pressed by the plug or the power terminal panel, Figure 1 As shown, the button 3 is reset by the reset spring 4, and the shaft 6 is reset synchronously by the shaft spring 12. The shaft spring 12 drives the shaft 6 to rotate in the opening direction. The reset rotation of the shaft 6 simultaneously drives the tripping rod 8 to engage with the lock 10, so that the circuit breaker returns to its initial state.

[0055] Further, if Figure 5As shown, the circuit breaker also includes a bracket 7 for matching and installing the lever mechanism, the trip transmission member 21 and the armature 20. The bracket 7 includes two bracket side plates 71 arranged relatively spaced apart, and a first bracket shaft 72, a second bracket shaft 73, a third bracket shaft 74, and a fourth bracket shaft 75 connected between the two bracket side plates 71; the rotating shaft 6 is rotatably mounted on the first bracket shaft 72 through the rotating shaft spring 12, the trip transmission member 21 is rotatably mounted on the second bracket shaft 73, the moving contact 11 is rotatably mounted on the third bracket shaft 74, and the armature 20 is rotatably mounted on the fourth bracket shaft 75. The first bracket shaft 72, the second bracket shaft 73, the third bracket shaft 74, and the fourth bracket shaft 75 are arranged in sequence from one end to the other of the bracket side plates 71. Preferably, the armature 20 and the trip transmission member 21 are located on one side of the bracket 7, and the lever mechanism is located on the other side of the bracket 7. The lever mechanism is located between the bracket 7 and the arc extinguishing chamber. In the thickness direction of the circuit breaker, the armature 20, the trip transmission member 21, and the lever mechanism are located between the two bracket side plates 71. The present invention adopts the bracket 7 to facilitate the assembly of the lever mechanism, the trip transmission member 21, and the armature 20, facilitate production and automated assembly, and facilitate the coordination and positioning of the various mechanisms. Of course, as an inferior solution, the bracket can also be omitted, and the rotating shaft 6, the trip transmission member 21, the moving contact 11, and the armature 20 can also be directly rotatably mounted on the convex shaft in the circuit breaker housing 2.

[0056] like Figure 4-7 As shown, another improvement of the present invention lies in an improved embodiment of the lever mechanism, which is further described below. Of course, the quick-insert simple closing circuit breaker of the present invention is not limited to the preferred lever mechanism of this embodiment, but can also be an existing four-bar or five-bar linkage mechanism.

[0057] like Figure 4-5 As shown, the rotating shaft 6 is provided with a rotating shaft hole 601 for rotatably mounting the rotating shaft 6, a rotating shaft connecting hole 602 for connecting to the connecting rod 5, and a rotating shaft hinge hole 603 for hingedly connecting to the tripping rod 8. Specifically, the rotating shaft 6 is provided with a rotating shaft rotating hole 601 at one end, and two rotating shaft hinge arms are extended from the other end and are relatively spaced apart. The two rotating shaft hinge arms are provided with rotating shaft hinge holes 603. One end of the tripping rod 8 extends between the two rotating shaft hinge arms and is hinged by a first pin. The rotating shaft connecting hole 602 is provided between the rotating shaft rotating hole 601 and the rotating shaft hinge hole 603. A rotating shaft limiting rib 604 is provided on one side of the rotating shaft 6. The rotating shaft limiting rib 604 is in an arc shape and is used to cooperate with the bracket 7 for limiting and guiding. In this embodiment, the shaft limiting rib 604 also serves to assemble the shaft reset spring 12 and the limiting guide shaft 6. One end of the shaft reset spring 12 is stuck in the shaft limiting rib 604, driving the shaft 6 to rotate and reset when the switch is opened; when the switch is closed, the shaft limiting rib 604 and the bracket 7 are limited to control the rotation angle of the shaft 6 and the closing angle.

[0058] like Figure 4-7 As shown, the tripping rod 8 and the lock 10 are rotatably mounted on the linkage member 9, and the tripping rod 8 and the lock 10 are snap-connected. The lock spring 13 drives the lock 10 to rotate in the direction of the snap connection with the tripping rod 8, and the moving contact 11 is rotatably mounted in the circuit breaker housing 2 and is drive-connected with the linkage member 9.

[0059] As a preferred embodiment of the improvement of the present invention, the linkage part 9 is in a U-shaped structure, the jumper rod 8 is in a sheet-like structure, and a jumper hook 803 for engaging with the lock 10 is provided on one side edge of the jumper rod 8. One end of the jumper rod 8 extends into the U-shaped groove of the U-shaped structure of the linkage part 9 and is hinged to the linkage part 9. The lock 10 includes a lock shaft 1002, and a lock portion 1005 is provided on the lock shaft 1002. The lock shaft 1002 is inserted into the side walls on both sides of the U-shaped structure of the linkage part 9, and the lock portion 1005 on the lock shaft 1002 cooperates with the jumper hook 803 of the jumper rod 8 in the U-shaped groove of the U-shaped structure. This assembly structure can effectively ensure the reliability of the snap connection. In particular, one side of the locking portion 1005 is an arc surface that is snap-fitted with the jumping hook 803 of the jumping rod 8, and the other side is a semi-axis notch for avoiding the jumping hook 803 of the jumping rod 8. This structure reduces the tripping force of the switch and is more conducive to resetting, which is conducive to the jumping rod 8 and the lock 10 to snap-fit ​​again.

[0060] Specifically, the linkage member 9 is a U-shaped structure, with both sidewalls of the U-shaped structure provided with a first linkage hole 901 for hinged connection with the tripping rod 8, a second linkage hole 902 for mounting the lock catch 10, and a third linkage hole 903 for connecting with the moving contact 11. Furthermore, on both sidewalls of the U-shaped structure, a limiting groove 904 for limiting the rotation angle of the lock catch 10 is provided on one side of the second linkage hole 902, and a clearance groove 905 for preventing the tripping rod 8 from rotating is provided on the bottom wall of the U-shaped structure.

[0061] Preferably, the jumper rod 8 is a sheet-like structure, with a first jumper hinge hole 801 at one end for hinged to the rotating shaft 6, and a second jumper hinge hole 802 at the other end for hinged to the linkage 9, and a jumper hook 803 for snapping with the lock buckle 10 is provided on one side of the jumper rod 8.

[0062] Preferably, the lock 10 is hinged to the linkage member 9, and includes a lock portion 1005 for engaging with the tripping rod 8, and a lock driving portion 1003 for engaging with the tripping transmission member 21. Preferably, the lock 10 includes a lock plate 1001, a lock rotating shaft 1002 protruding from one side of the lock plate 1001, and a lock driving shaft 1003 protruding from the other side of the lock plate 1001. A lock portion 1005 is provided in the middle of the lock rotating shaft 1002. One side of the lock portion 1005 is an arc surface for engaging with the tripping hook 803 of the tripping rod 8, and the other side is a semi-shaft notch for avoiding the tripping hook 803 of the tripping rod 8. This structure reduces the tripping force of the switch and is more conducive to resetting. Furthermore, a lock limiting shaft 1004 is provided on one side of the lock plate 1001 where the lock shaft 1002 is provided. The lock 10 is rotatably mounted on the linkage member 9 via the lock shaft 1002. The lock spring 13 drives the lock limiting shaft 1004 of the lock 10 to rotate toward the side closer to the linkage member 9 for a limited engagement. Furthermore, the lock 10 is integrally formed, and the lock limiting shaft 1004 and the lock driving shaft 1003 are coaxially arranged.

[0063] Specifically, such as Figure 5-6 As shown, the jumper rod 8 is provided with a second jumper hinge hole 802 and one end of the jumper hook 803 extends into the U-shaped groove of the U-shaped structure of the linkage part 9, and the second pin shaft 906 hinges the jumper rod 8 and the linkage part 9 through the first linkage hole 901 and the first jumper hinge hole 801; the lock 10 is inserted into one side of the U-shaped structure of the linkage part 9, and the lock shaft 1002 passes through the second linkage hole 902, and the lock part 1005 on the lock shaft 1002 cooperates with the jumper hook 803 of the jumper rod 8 in the U-shaped groove of the U-shaped structure, the lock plate 1001 of the lock 10 is located on the outside of the U-shaped structure, the lock limit shaft 1004 extends into the limit groove 904, and the lock spring 13 is sleeved on the lock shaft 1002.

[0064] like Figure 5As shown, the movable contact 11 includes a movable contact 1101 at one end and a movable contact mounting portion at the other end. The movable contact mounting portion is a U-shaped structure. The sidewalls of the U-shaped structure are provided with movable contact rotation holes 1102 for rotatable mounting of the movable contact, as well as a movable contact drive hole 1103 for connecting to the linkage member 9. A movable contact limit shaft 1104 is also provided that passes through the U-shaped structure to act as a limiter to ensure reliable closing of the switch. Furthermore, the movable contact drive hole 1103 is located between the movable contact rotation hole 1102 and the movable contact 1101. The movable contact 1101 is located on the outside of the end of the movable contact 11, away from the U-shaped structure. The movable contact rotation hole 1102 is an elongated waist-shaped hole. Specifically, the U-shaped structure of the moving contact mounting portion is sleeved on the outside of the linkage member 9 and is located on the inside of the bracket 7. The moving contact is installed on the third bracket shaft 74 of the bracket 7 or in the circuit breaker housing 2 through the moving contact rotation hole 1102. The third axle pin passes through the moving contact drive hole 1103 and the third linkage hole 903 to hinge the moving contact 11 with the linkage member 9. The moving contact spring is sleeved on the third axle pin to elastically fix the moving contact 11 and the linkage member 9. The linkage member 9 can drive the moving contact 11 to rotate around the rotation axis passing through the moving contact rotation hole 1102. The moving contact spring and the long waist-shaped hole structure of the moving contact rotation hole 1102 provide overtravel to ensure reliable contact between the moving contact 11 and the static contact 17.

[0065] like Figure 2 、 5 As shown, the trip transmission member 21 includes a transmission member shaft, and a first driving arm for cooperating with the armature 20, a second driving arm for cooperating with the lock 10, and a third driving arm for cooperating with the transmission member spring are protruded on the side wall of the transmission member shaft. The transmission member spring drives the trip transmission member 21 to rotate in a direction away from the lock 10 and close to the armature 20. The transmission member spring is a torsion spring and is installed in the circuit breaker housing 2.

[0066] like Figure 4 As shown, the armature 20 includes an armature triggering piece at one end and an armature mounting portion at the other end. The armature mounting portion is U-shaped, with the sidewalls of the U-shaped structure being rotatable. One side of the bottom of the U-shaped structure is used to drive the tripping transmission member 21. One end of the armature triggering piece is bent and connected to the other side of the bottom of the U-shaped structure, and the other end extends toward one end of the electromagnetic system and is positioned corresponding to the iron core of the electromagnetic system. The rotating portion of the armature 20 is positioned above the coil of the electromagnetic system, and the tripping transmission member 21 is rotatably mounted above the armature 20.

[0067] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A quick-insert, easy-to-close circuit breaker comprising a circuit breaker housing (2), and a button mechanism, a lever mechanism, and a trip mechanism disposed within the circuit breaker housing (2). When the button mechanism is pressed, the button mechanism drives a moving contact (11) through the lever mechanism to move and contact a stationary contact (17) to close the circuit breaker. The circuit breaker is characterized in that: The line inlet of the circuit breaker and the button mechanism are arranged at one end of the circuit breaker housing (2); the button mechanism comprises a button (3); a button hole (201) is provided on an operating surface at one end of the circuit breaker housing (2); the button (3) is slidably mounted in the button hole (201) of the circuit breaker housing (2); one end of the button (3) is an operating end extending out of the circuit breaker housing (2) for a pressing operation; the line inlet protrudes from the plane where the button hole (201) is located and is used for plugging and cooperating with a power supply device, so that when the line inlet is plugged into the power supply device, the button (3) can be simultaneously pressed by the panel of the power supply device to close the circuit breaker.

2. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: After the circuit breaker is closed, the button (3) is completely retracted into the circuit breaker housing (2); when the circuit breaker is tripped and opened, the button (3) can remain retracted into the circuit breaker housing (2).

3. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: The inlet terminal of the circuit breaker and the button mechanism are arranged at one end of the circuit breaker housing (2), the outlet terminal is arranged at the other end of the circuit breaker housing (2), the outlet terminal and the button mechanism are respectively located on both sides of one end of the circuit breaker housing (2), the tripping mechanism is an electromagnetic system, and the electromagnetic system is arranged at the other end of the circuit breaker housing (2), the lever mechanism, the moving contact (11), the static contact (17) and the arc extinguishing device are located in the middle of the circuit breaker housing (2), the lever mechanism and the moving contact (11) are located on one side of the middle of the circuit breaker housing (2) and between the outlet terminal and the electromagnetic system, and the arc extinguishing device and the static contact (17) are located on the other side of the middle of the circuit breaker housing (2) and between the button mechanism and the electromagnetic system.

4. The quick-insert, easy-closing circuit breaker according to claim 3, characterized in that: The incoming line end includes an L-pole contact plate (1) and an N-pole contact plate (15), one end of each of the L-pole contact plate (1) and the N-pole contact plate (15) protruding from the plane where the button hole (201) is located for plug-in electrical connection, the other end of the L-pole contact plate (1) is electrically connected to the moving contact (11), and the other end of the N-pole contact plate (15) is electrically connected to the coil (14) of the electromagnetic system; the outgoing line end includes an L-pole terminal block (19), one end of the L-pole terminal block (19) extending out of the circuit breaker housing (2) for plug-in electrical connection, and the other end of the L-pole terminal block (19) is connected to the static contact (17) through the coil (14) of the electromagnetic system.

5. The quick-insert, easy-closing circuit breaker according to claim 4, characterized in that: A plug-in protection portion (202) protruding from the plane where the button hole (201) is located is provided at one end of the circuit breaker housing (2) where the line inlet is provided. One end of the L-pole contact plate (1) and the N-pole contact plate (15) protruding from the plane where the button hole (201) is located is provided in the plug-in protection portion (202). The circuit breaker is plugged into and matched with the power supply device via the plug-in protection portion (202).

6. The quick-insert, easy-closing circuit breaker according to claim 4, characterized in that: The axial direction of the coil (14) of the electromagnetic system is arranged perpendicular to the sliding direction of the button (3); the N-pole contact plate (15) is arranged on one side of the circuit breaker housing (2) and connected to one end of the coil (14); the L-pole terminal board (19) is arranged on the other side of the circuit breaker housing (2) and connected to the other end of the coil (14); the arc extinguishing device and the static contact (17) are arranged between the L-pole terminal board (19) and the button mechanism; the lever mechanism and the moving contact (11) are located between the L-pole terminal board (19) and the arc extinguishing device; the arc extinguishing device includes an arc extinguishing chamber and a plurality of arc extinguishing grids arranged in the arc extinguishing chamber; one end of the static contact (17) provided with a static contact extends into the arc extinguishing chamber, and the other end is connected to the other end of the coil (14); the arc extinguishing chamber has an opening at one end facing the side provided with the lever mechanism and the moving contact (11).

7. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: The button mechanism comprises a button (3), a connecting rod (5) and a reset spring member (4); the button (3) is slidably mounted in a button hole (201) at one end of a circuit breaker housing (2); the button (3) is connected to a lever mechanism via the connecting rod (5); and the reset spring member (4) provides the button (3) with a reset force that drives the button (3) to extend out of the circuit breaker housing (2).

8. The quick-insert, easy-closing circuit breaker according to claim 3, characterized in that: The lever mechanism comprises a rotating shaft (6), a tripping rod (8), a linkage member (9) and a lock (10); the rotating shaft (6) is rotatably mounted in a circuit breaker housing (2); the rotating shaft (6) and the button (3) are driven and connected via a connecting rod (5); the rotating shaft (6) and the tripping rod (8) are hinged; the tripping rod (8) and the lock (10) are rotatably mounted on the linkage member (9); the tripping rod (8) and the lock (10) are snap-connected; a lock spring (13) drives the lock (10) to rotate in a snap-connected direction with the tripping rod (8); and the linkage member (9) is connected to a moving contact (11).

9. The quick-insert, easy-closing circuit breaker according to claim 8, characterized in that: The tripping mechanism is an electromagnetic system, which cooperates with the lock (10) of the lever mechanism through a tripping transmission member (21). The electromagnetic system includes an armature (20) rotatably mounted in a housing. The electromagnetic system drives the tripping transmission member (21) through the armature (20) to move the lock (10) so that the lock (10) and the tripping rod (8) are disconnected.

10. The quick-insert, easy-closing circuit breaker according to claim 9, characterized in that: The circuit breaker further comprises a bracket (7), the bracket (7) comprising two bracket side plates (71) arranged relatively spaced apart, and a first bracket shaft (72), a second bracket shaft (73), a third bracket shaft (74), and a fourth bracket shaft (75) connected between the two bracket side plates (71); the rotating shaft (6) is rotatably mounted on the first bracket shaft (72) via a rotating shaft spring (12); the tripping transmission member (21) is rotatably mounted on the second bracket shaft (73); the moving contact (11) is rotatably mounted on the third bracket shaft (74); the armature (20) is rotatably mounted on the fourth bracket shaft (75); and the first bracket shaft (72), the second bracket shaft (73), the third bracket shaft (74), and the fourth bracket shaft (75) are sequentially arranged from one end to the other end of the bracket side plate (71).

11. The quick-insert, easy-closing circuit breaker according to claim 3, characterized in that: The electromagnetic system comprises a coil (14), a coil frame (16), an oil cup (18) and an armature (20); an oil medium, an iron core and an iron core return spring are provided in the oil cup (18); the oil cup (18) is installed in the coil frame (16); the coil (14) is wound on the coil frame (16); the armature (20) is rotatably arranged in the circuit breaker housing (2); one end of the armature (20) is arranged opposite to one end of the iron core.

12. The quick-insert, easy-closing circuit breaker according to claim 8, characterized in that: The linkage member (9) is in a U-shaped structure, the jumper rod (8) is in a sheet-like structure, a jumper hook (803) for engaging with the lock (10) is provided on one side edge of the jumper rod (8), one end of the jumper rod (8) extends into the U-shaped groove of the U-shaped structure of the linkage member (9) and is hinged to the linkage member (9), the lock (10) comprises a lock shaft (1002), a lock portion (1005) is provided on the lock shaft (1002), the lock shaft (1002) is inserted into the side walls of the U-shaped structure of the linkage member (9), and the lock portion (1005) on the lock shaft (1002) engages with the jumper hook (803) of the jumper rod (8) in the U-shaped groove of the U-shaped structure.

13. The quick-insert, easy-closing circuit breaker according to claim 12, characterized in that: One side of the locking portion (1005) is an arc surface that is snap-fitted with the jump hook (803) of the jump rod (8), and the other side is a half-axis notch for avoiding the jump hook (803) of the jump rod (8).

14. The quick-insert, easy-closing circuit breaker according to claim 12, characterized in that: Both side walls of the U-shaped structure of the linkage member (9) are provided with a first linkage hole (901) for hinged connection with the tripping rod (8), a second linkage hole (902) for installing the lock catch (10), and a third linkage hole (903) for connecting with the moving contact (11).

15. The quick-insert, easy-closing circuit breaker according to claim 14, characterized in that: On both side walls of the U-shaped structure, a limiting groove (904) for limiting the rotation angle of the locking buckle (10) is provided on one side of the second linkage hole (902), and an avoidance groove (905) for avoiding the rotation of the jump buckle rod (8) is provided on the bottom wall of the U-shaped structure.

16. The quick-insert, easy-closing circuit breaker according to claim 12, characterized in that: One end of the jumper rod (8) is provided with a first jumper hinge hole (801) for hinged connection with the rotating shaft (6), and the other end is provided with a second jumper hinge hole (802) for hinged connection with the linkage member (9). A jumper hook (803) for hasp-fitting with the lock buckle (10) is provided on one side of the jumper rod (8).

17. The quick-insert, easy-closing circuit breaker according to claim 12, characterized in that: The lock (10) comprises a lock plate (1001), a lock shaft (1002) protruding from one side of the lock plate (1001), and a lock drive shaft (1003) protruding from the other side of the lock plate (1001). A lock portion (1005) is provided in the middle of the lock shaft (1002). One side of the lock portion (1005) is an arc surface that is engaged with the jump hook (803) of the jump rod (8), and the other side is an arc surface. The half-shaft notch is used to avoid the jump hook (803) of the jump rod (8); a lock limit shaft (1004) is also provided on one side of the lock plate (1001) provided with a lock rotating shaft (1002); the lock (10) is rotatably mounted on the linkage member (9) via the lock rotating shaft (1002); and the lock spring (13) drives the lock limit shaft (1004) of the lock (10) to rotate toward the side close to the linkage member (9) for limited engagement.

18. The quick-insert, easy-closing circuit breaker according to claim 8, characterized in that: One end of the rotating shaft (6) is provided with a rotating shaft rotation hole (601), and the other end is extended with two rotating shaft hinge arms arranged relatively spaced apart, and the two rotating shaft hinge arms are provided with rotating shaft hinge holes (603), and one end of the tripping rod (8) extends into between the two rotating shaft hinge arms for hinge connection.

19. The quick-insert, easy-closing circuit breaker according to claim 10, characterized in that: The rotating shaft (6) is provided with a rotating shaft rotation hole (601) for rotating and installing the rotating shaft (6), a rotating shaft connection hole (602) for connecting with the connecting rod (5), and a rotating shaft hinge hole (603) for hingedly connecting with the jumper rod (8). A rotating shaft limiting rib (604) is provided on one side of the rotating shaft (6). The rotating shaft limiting rib (604) is in an arc shape and is used to cooperate with the bracket (7) for limiting and guiding.

20. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: The movable contact (11) is provided with a movable contact point (1101) at one end and a movable contact mounting portion at the other end. The movable contact mounting portion is in a U-shaped structure. Both side walls of the U-shaped structure are provided with movable contact rotation holes (1102) for rotatably mounting the movable contact, and movable contact drive holes (1103) for connecting to the linkage member (9).

21. The quick-insert, easy-closing circuit breaker according to claim 20, characterized in that: The moving contact driving hole (1103) is located between the moving contact rotation hole (1102) and the moving contact (1101), the moving contact (1101) is located on the outside of the end of the moving contact (11) away from the U-shaped structure, and the moving contact rotation hole (1102) is a long waist-shaped hole.

22. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: The circuit breaker is in the shape of a right parallelepiped as a whole, and the cross section of the circuit breaker parallel to the thickness of the circuit breaker is rectangular.

23. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: When the circuit breaker is in a closed state, when the button (3) is not blocked, the reset spring (4) drives the button mechanism to reset and drives the lever mechanism to automatically open the circuit breaker.

24. The quick-insert, easy-closing circuit breaker according to claim 1, characterized in that: When the circuit breaker is in a closed state, the pull button mechanism drives the lever mechanism to realize opening; a pull notch for facilitating the operation of the button (3) is provided on one side of the button hole (201) of the circuit breaker.

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