breaker

Abstract

The present invention relates to the field of low-voltage electrical appliances, and in particular to a circuit breaker, wherein a button mechanism drives the circuit breaker to close / open through an operating mechanism, an electric mechanism drives the circuit breaker to close / open through the button mechanism and / or the operating mechanism, a circuit breaker housing comprises a circuit breaker operation interface, a button assembly hole and an outlet terminal, one end of the button mechanism is inserted into the button assembly hole, and an inlet terminal is arranged at the other end of the circuit breaker housing; the circuit breaker also comprises a manual-automatic switching device arranged in the circuit breaker housing, the manual-automatic switching device comprises a switching operating element and a switching switch element, the switching operating element is driven and matched with the switching switch element, and the switching switch element is used to realize the switching of the circuit breaker between a manual working mode and an automatic working mode; the switching operating element is arranged on the circuit breaker operation interface and located on one side of the button assembly hole; the circuit breaker of the present invention can conveniently switch between a manual working mode and an automatic working mode.

Description

Technical Field

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

[0002] Existing plug-in circuit breakers often have the following problems:

[0003] 1. The existing electric mechanism of the circuit breaker realizes automatic closing by driving the handle mechanism, and realizes automatic opening by driving the handle mechanism or by driving the lock of the operating mechanism. The corresponding matching mechanism is easy to wear, and the structure is relatively complicated in order to achieve mutual non-interference between automatic opening and closing and manual opening and closing. In addition, the electric mechanism of the existing circuit breaker is processed by the position sensor and the chip. The position sensor transmits the closing and opening positions of the circuit breaker to the chip. The chip controls the motor to rotate forward or reverse to realize closing, opening and returning to the initial position (that is, it does not affect the manual opening and closing position of the circuit breaker). The chip is easily affected by external interference, resulting in unreliable position detection, which affects the reliability of the circuit breaker operation.

[0004] Second, the electric mechanism of the existing circuit breaker relies on hard transmission of gears. After long-term use, the structural parts are prone to wear, which often leads to inadequate transmission, which is manifested as the circuit breaker not closing or opening properly.

[0005] 3. The existing circuit breaker is inconvenient to operate when switching between the manual working mode and the automatic working mode, and the working reliability of the manual-automatic switching device is not high.

[0006] Fourth, the overall spatial dimensions of existing circuit breakers are too large, which does not meet the trend and requirements of the miniaturization development of circuit breakers.

[0007] 5. In existing circuit breakers, the control of the motor of the electric mechanism often requires complex physical structure and circuit implementation, resulting in a complex overall structure of the circuit breaker and poor reliability. Summary of the invention

[0008] The object of the present invention is to overcome the defects of the prior art and provide a circuit breaker which can conveniently switch between a manual working mode and an automatic working mode.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] A circuit breaker comprises a circuit breaker housing 1, and a button mechanism 2, an electric mechanism 3, and an operating mechanism 5 arranged in the circuit breaker housing 1; the button mechanism 2 drives the circuit breaker to close / open through the operating mechanism 5; the electric mechanism 3 drives the circuit breaker to close / open through the button mechanism 2 and / or the operating mechanism 5, the circuit breaker housing 1 comprises a circuit breaker operation interface 1i arranged at one end thereof, and a button assembly hole and an outlet terminal 881 arranged on the circuit breaker operation interface 1i, one end of the button mechanism 2 is inserted into the button assembly hole, and an inlet terminal 880 is arranged at the other end of the circuit breaker housing 1; the circuit breaker also comprises a manual-automatic switching device arranged in the circuit breaker housing 1, the manual-automatic switching device comprises a switching operating element 7a and a switching switch element 9A, the switching operating element 7a is driven and matched with the switching switch element 9A, and the switching switch element 9A is used to realize the switching of the circuit breaker between a manual working mode and an automatic working mode; the switching operating element 7a is arranged on the circuit breaker operation interface 1i and located on one side of the button assembly hole.

[0011] Preferably, the manual-automatic switching device further comprises a switching transmission element 8a, and the switching operating element 7a drives the switching switch element 9A to operate through the switching transmission element 8a;

[0012] The switching operating element 7a is a knob rotatably arranged on the circuit breaker housing 1, including a knob connecting portion 70a and a knob operating end 71a and a knob driving portion 72a respectively arranged on both sides of the knob connecting portion 70a; one end of the switching transmission element 8a is drivingly connected to the knob driving portion 72a, and the other end is drivingly matched with the switching switch element 9A; the knob is turned to drive the switching transmission element 8a to move toward or away from the direction where the switching switch element 9A is located, thereby triggering the switching switch element 9A.

[0013] Preferably, the knob driving portion 72a includes a knob driving inclined surface 720a that cooperates with the switching transmission element 8a in driving.

[0014] Preferably, the switching transmission element 8a is a rod-shaped member, including a transmission element driven part 80a, a transmission element spring limit platform 82a and a transmission element transmission part 81a connected in sequence, the transmission element driven part 80a is drivingly matched with the knob driving part 72a, and the transmission element transmission part 81a is drivingly matched with the switching switch element 9A; the manual-automatic switching device also includes a transmission element reset spring 10, which is sleeved on the transmission element transmission part 81a, one end of which is limitedly matched with the transmission element spring limit platform 82a, and the other end is limitedly matched with the circuit breaker housing 1.

[0015] Preferably, the circuit breaker housing 1 further comprises a transmission element assembly groove arranged on one side of the button mechanism 2, the transmission element assembly groove comprising an assembly groove upper section 103-1, an assembly groove lower section 103-2 and an assembly groove tail section connected in sequence, the width of the assembly groove lower section 103-2 is greater than the width of the assembly groove upper section 103-1 and the width of the assembly groove lower section 103-2 is greater than the width of the assembly groove tail section, the connection between the assembly groove lower section 103-2 and the assembly groove upper section 103-1 forms a first step structure, and the connection between the assembly groove lower section 103-2 and the assembly groove tail section A second step structure is formed at the position where the driven portion 80a of the transmission element is arranged in the middle of the upper section 103-1 of the assembly groove, the transmission portion 81a of the transmission element is arranged in the middle of the lower section 103-2 of the assembly groove, the transmission element spring limit platform 82a is limited and matched with the first step structure, the transmission element return spring 10 is arranged in the middle of the lower section 103-2 of the assembly groove, one end is limited and matched with the transmission element spring limit platform 82a, and the other end is limited and matched with the second step structure, and the free end of the transmission portion 81a of the transmission element passes through the tail section of the assembly groove and is limited and matched with the switching switch element 9A.

[0016] Preferably, the switching element 9A is connected in series in the power supply circuit of the electric mechanism 3 .

[0017] Preferably, the outlet terminal 881 is a plug-in type terminal, and the circuit breaker housing 1 also includes an outlet hole 1o and a wire removal hole 1d of the outlet terminal 881 arranged on the circuit breaker operation interface 1i. The outlet hole 1o and the wire removal hole 1d are used in a one-to-one manner. The outlet hole 1o, the wire removal hole 1d and the switching operation element 7a are all located on the same side of the button assembly hole, and the switching operation element 7a is located between a wire removal hole 1d and the button assembly hole.

[0018] Preferably, the electric mechanism 3 includes a motor 301 and a driving gear member 305 and a driven gear 306 pivotally arranged on the circuit breaker housing 1, respectively, and the driving gear member 305 is driven to cooperate with the driven gear 306; the operating mechanism 5 includes a transmission member 501 pivotally arranged on the circuit breaker housing 1 and drivingly connected to the button mechanism 2, and the driven gear 306 is coaxially arranged with the transmission member 501 and drivingly cooperates; the driving gear member 305 is driven to cooperate with the driven gear 306, and the driven gear 306 drives the transmission member 501 to rotate to close the circuit breaker, and the driving gear member 305 is driven to cooperate with the button mechanism 2, and the button mechanism 2 drives the transmission member 501 to rotate in the opposite direction to open the circuit breaker.

[0019] Preferably, the circuit breaker further comprises a switch device, a closing circuit, and an opening circuit; the switch device comprises a first switch member 9B drivingly matched with the driving gear member 305, the output end of the first switch member 9B is respectively connected to the closing circuit and the opening circuit, the motor 301 is respectively connected in series to the closing circuit and the opening circuit, and the switching switch element 9A is connected in series to the closing circuit and the opening circuit;

[0020] When the circuit breaker is in the open state and the first switch element 9B connects the closing circuit and disconnects the opening circuit, a closing voltage signal is applied to both ends of the closing circuit. After the driving gear element 305 drives the transmission element 501 through the driven gear 306 to close the circuit breaker, the driving gear element 305 continues to rotate to drive the first switch element 9B to disconnect the closing circuit and connect the opening circuit.

[0021] When the circuit breaker is in the closed state and the first switch component 9B connects the closing circuit and disconnects the opening circuit, an opening voltage signal is loaded at both ends of the first switch component 9B and the opening circuit. After the driving gear component 305 rotates and drives the button mechanism 2 to open the circuit breaker, the driving gear component 305 continues to rotate to drive the first switch component 9B to disconnect the opening circuit and connect the closing circuit.

[0022] Preferably, the button mechanism 2 includes a button member 201, a first connecting rod 202, a connecting member 204 and a second connecting rod 203 connected in sequence, the second connecting rod 230 is drivingly connected to the operating mechanism 5, the button member 201 and the connecting member 204 are slidably arranged on the circuit breaker housing 1, one end of the button member 201 passes through the button assembly hole and protrudes outside the circuit breaker housing 1, pressing / pulling the button member 201 drives the operating mechanism 5 to operate, so that the circuit breaker is closed / opened; the driving gear member 305 cooperates with the connecting member 204 to drive and open the circuit breaker, and the circuit breaker also includes a first reset spring 205 for driving the connecting member 204 to reset.

[0023] Preferably, the circuit breaker also includes a locking mechanism 4, one end of the locking mechanism 4 is a locking mechanism actuated end, protruding outside the circuit breaker housing 1, and the other end is a locking mechanism mating end, mating with the button member 201 or the first connecting rod 202; the locking mechanism 4 and the first reset spring 205 of the button mechanism 2 are both located on the same side of the button member 201 and the connecting member 204.

[0024] The circuit breaker of the present invention has a manual-automatic switching device comprising a switching operating element and a switching switch element that are driven and matched, which has a simple structure and is easy to operate; the switching operating element and one end of the button mechanism are both located on the circuit breaker operation interface, with a large operation space, which is convenient for users to operate the circuit breaker and easy to observe.

[0025] In addition, the various components of the manual-automatic switching device are mechanically driven, so the transmission is reliable, and the structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the circuit breaker of the present invention, which at least shows the specific structures of the button mechanism, the electric mechanism and the operating mechanism;

[0027] Figure 2 It is a structural schematic diagram of the connecting piece of the present invention;

[0028] Figure 3 It is a schematic structural diagram of the driving gear member of the present invention;

[0029] Figure 4 It is a schematic diagram of the assembly relationship between the driven gear, the energy storage spring and the transmission member of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the driven gear of the present invention;

[0031] Figure 6 is a schematic diagram of the structure of the transmission member of the present invention, which at least shows the positional relationship between the first transmission member connecting hole, the second transmission member connecting hole and the transmission member shaft hole;

[0032] Figure 7 It is a schematic diagram of the structure of the transmission member of the present invention, which at least shows the positional relationship between the energy storage spring assembly groove, the driven gear limiting groove and the transmission member spring limiting groove;

[0033] Figure 8 It is a structural schematic diagram of the energy storage spring of the present invention;

[0034] Fig. 9 It is a structural schematic diagram of the circuit breaker of the present invention, the circuit breaker is in an open state, and the driving gear member is in a first initial position;

[0035] Fig.10 It is a structural schematic diagram of the circuit breaker of the present invention, the circuit breaker is in an open state, and the driving gear member rotates from a first initial position to mesh with the driven gear;

[0036] Fig.11 It is a schematic diagram of the structure of the circuit breaker of the present invention, in which the circuit breaker is in the closing process, and the moving contact and the static contact are closed;

[0037] Fig.12 It is a schematic diagram of the structure of the circuit breaker of the present invention, the circuit breaker is in a closed state, and the driving gear is in a middle position;

[0038] Fig.13 It is a schematic diagram of the matching relationship between the driving gear member and the closing position stop platform of the present invention;

[0039] Fig.14 It is a schematic diagram of the assembly structure of the manual-automatic switching device of the present invention;

[0040] Fig.15 It is a structural schematic diagram of a circuit breaker operation interface of a circuit breaker housing of the present invention;

[0041] Fig.16It is a structural schematic diagram of the manual-automatic switching device of the present invention, showing the coordination relationship between the manual-automatic switching device and the switching switch element;

[0042] Fig.17 is a schematic structural diagram of the circuit breaker of the present invention, which at least shows the distribution relationship of various components of the circuit breaker in the circuit breaker housing;

[0043] Fig.18 is a schematic structural diagram of the circuit breaker of the present invention, which at least shows the positional relationship between the circuit board and other components of the circuit breaker;

[0044] Fig.19 It is a schematic diagram of the positional relationship between the circuit board, the incoming line terminal and the circuit board slot of the present invention;

[0045] Fig. 20 It is a schematic diagram of the positional relationship between the incoming line terminal and the circuit board slot of the present invention;

[0046] Fig.21 is a schematic structural diagram of the circuit breaker of the present invention, which at least shows the positional relationship and matching relationship between the driving gear member and the first switch member;

[0047] Fig. 22 is a schematic structural diagram of the circuit breaker of the present invention, which at least shows the positional relationship and matching relationship between the connecting member and the second switch member;

[0048] Fig.23a is a schematic diagram of a first embodiment of a control circuit for a motor of the present invention, in which the circuit breaker is in an open state, and a closing voltage signal is applied to the first switch element and the closing circuit;

[0049] Figure 23b is a schematic diagram of a first embodiment of a control circuit for a motor of the present invention, in which the circuit breaker is in a closed state, and an opening voltage signal is applied to the first switch element and the opening circuit;

[0050] Fig.24a is a schematic diagram of a second embodiment of the control circuit of the motor of the present invention, in which the circuit breaker is in an open state, the first switch element is connected to the closing circuit, the second switch element is connected to the closing auxiliary circuit, and the closing voltage signal is loaded on both ends of the first switch element and the closing circuit;

[0051] Figure 24b is a schematic diagram of a second embodiment of the control circuit of the motor of the present invention, at which the circuit breaker is in a closed state, the first switch element is connected to the opening circuit, the second switch element is connected to the opening auxiliary circuit, and the opening voltage signal is loaded on both ends of the first switch element and the opening circuit;

[0052] Fig.24cis a schematic diagram of a second embodiment of the control circuit of the motor of the present invention, at which the circuit breaker is driven to switch to the opening state by the manual operation component, the first switch element connects the opening circuit, the second switch element connects the closing auxiliary circuit, and the closing voltage signal is loaded on both ends of the first switch element and the closing circuit;

[0053] Fig.24d is a schematic diagram of a second embodiment of the control circuit of the motor of the present invention, at which the circuit breaker is driven to switch to a closed state by a manual operation component, the first switch element connects the closing circuit, the second switch element connects the opening auxiliary circuit, and the opening voltage signal is loaded on both ends of the first switch element and the opening circuit;

[0054] Fig.25a is a schematic diagram of a third embodiment of the control circuit of the motor of the present invention, in which the circuit breaker is in an open state, and a closing voltage signal is applied to the first switch element and the closing circuit;

[0055] Fig.25b is a schematic diagram of a third embodiment of the control circuit of the motor of the present invention, in which the circuit breaker is in a closed state, and an opening voltage signal is applied to the first switch element and the opening circuit;

[0056] Fig.26a is a schematic diagram of a fourth embodiment of a control circuit for a motor of the present invention, in which the circuit breaker is in an open state, the first switch element is connected to the closing circuit, the second switch element is connected to the closing auxiliary circuit, and the closing voltage signal is loaded on both ends of the first switch element and the closing circuit;

[0057] Figure 26b is a schematic diagram of a fourth embodiment of a control circuit for a motor of the present invention, in which the circuit breaker is in a closed state, the first switch element is connected to the opening circuit, the second switch element is connected to the opening auxiliary circuit, and the opening voltage signal is loaded on both ends of the first switch element and the opening circuit;

[0058] Fig.26c is a schematic diagram of a fourth embodiment of a control circuit for a motor of the present invention, in which the circuit breaker is driven to switch to an opening state by a manual operation component, the first switch element is connected to an opening circuit, the second switch element is connected to a closing auxiliary circuit, and a closing voltage signal is applied to both ends of the first switch element and the closing circuit;

[0059] Fig.26d It is a schematic diagram of the fourth embodiment of the control circuit of the motor of the present invention. At this time, the circuit breaker has been driven to switch to the closed state by the manual operation component, the first switch component is connected to the closing circuit, the second switch component is connected to the opening auxiliary circuit, and the opening voltage signal is loaded on both ends of the first switch component and the opening circuit. DETAILED DESCRIPTION

[0060] The following is combined with Figure 1-26dThe following embodiments are provided to further illustrate the specific implementation of the circuit breaker of the present invention. The circuit breaker of the present invention is not limited to the description of the following embodiments.

[0061] The present invention discloses a circuit breaker, which includes a circuit breaker housing 1 and a button mechanism 2, an electric mechanism 3, and an operating mechanism 5 arranged in the circuit breaker housing 1; a moving contact 1a connected to the operating mechanism 5, and a static contact 1b used in conjunction with the moving contact 1a; the button mechanism 2 can be operated to drive the circuit breaker to close / open through the operating mechanism 5 to realize manual opening and closing; the electric mechanism 3 drives the circuit breaker to close / open (electric opening / closing) in conjunction with the button mechanism 2 and / or the operating mechanism 5 to realize automatic opening and closing. Further, the circuit breaker of the present invention also includes a short-circuit protection mechanism 6, an arc extinguishing system 7, an overload protection mechanism 110, an incoming terminal 880, and an outgoing terminal 881; the short-circuit protection mechanism 6 and the overload protection mechanism 110 are respectively driven and cooperated with the operating mechanism 5. When a short circuit or overload fault occurs in the circuit breaker, the short-circuit protection mechanism 6 and the overload protection mechanism 110 drive the operating mechanism 5 to trip, which can disconnect the moving contact 1a and the static contact 1b of the circuit breaker.

[0062] The following is a first circuit breaker disclosed in the present invention:

[0063] like Figure 1 , 9 -As shown in Figure 12, the present invention discloses a circuit breaker, which includes a circuit breaker housing 1 and a button mechanism 2, an electric mechanism 3, and an operating mechanism 5 arranged in the circuit breaker housing 1; operating the button mechanism 2 can drive the circuit breaker to close / open through the operating mechanism 5; the electric mechanism 3 cooperates with the button mechanism 2 and the operating mechanism 5, the electric mechanism 3 drives the circuit breaker to close through the operating mechanism 5, and the electric mechanism 3 drives the circuit breaker to open through the button mechanism 2. The operating mechanism 5 includes a transmission member 501 pivotally arranged on the circuit breaker housing 1 and drivingly connected to the button mechanism 2. Pressing the button mechanism 2 drives the transmission member 501 to rotate in the closing direction to realize manual closing, and pulling the button mechanism 2 drives the transmission member 501 to rotate in the opposite direction to realize manual opening; the electric mechanism 3 drives the transmission member 5 to rotate to close the circuit breaker (electric closing), and the electric mechanism 3 drives the transmission member 501 to rotate in the opposite direction through the button mechanism 2 to open the circuit breaker (electric opening). Further, as Figure 1 , 9-12, the electric mechanism 3 includes a driving gear 305 and a driven gear 306 respectively pivotally arranged on the circuit breaker housing 1, the driving gear 305 and the driven gear 306 are drivingly matched, the driven gear 306 is coaxially arranged and drivingly matched with the transmission member 501; the driving gear 305 and the driven gear 306 are drivingly matched, the driven gear 306 drives the transmission member 501 to rotate in the closing direction to close the circuit breaker, the driving gear 305 and the button mechanism 2 are drivingly matched, the button mechanism 2 drives the transmission member 501 to rotate in the opposite direction to open the circuit breaker, and realizes automatic opening and closing. The circuit breaker of the present invention includes an electric mechanism for realizing automatic opening and closing of the circuit breaker, the closing operation of which is realized by the cooperation of the electric mechanism and the operating mechanism, and the opening operation is realized by the cooperation of the electric mechanism and the button mechanism, which simplifies the structure of the electric opening and closing and prolongs the service life of the circuit breaker.

[0064] Furthermore, as one of the improvements of the present invention, the driving gear member 305 drives the driven gear 306 to realize the rotation direction of the circuit breaker when closing the circuit breaker, which is consistent with the rotation direction of the driving button mechanism 2 when opening the circuit breaker, that is, during the automatic opening and closing process, the motor of the electric mechanism 3 always rotates in one direction, which is conducive to simplifying the control process of the electric mechanism 3. A specific embodiment is that when closing the circuit breaker, the driving gear member 305 rotates from the first initial position to the first direction until it is meshed with the driven gear 306, and the driving gear member 306 continues to rotate and drives the transmission member 501 to rotate in the second direction through the driven gear 306, so that after the circuit breaker is closed, the driving gear member 305 continues to rotate to the middle position (the middle position refers to the position where the gear member 305 is disengaged from the driven gear 306 and the gear member 305 does not drive the connecting member 204 in the button mechanism 2) and disengages from the driven gear 306; when opening the circuit breaker, the driving gear member 305 rotates from the middle position to the first direction and drives the button mechanism 2 to operate, and the button mechanism 2 drives the transmission member 501 to rotate in the first direction, so that after the circuit breaker is opened, the driving gear member 305 continues to rotate to the first initial position (that is, it does not affect the manual opening and closing function position of the circuit breaker). The circuit breaker of the present invention has a closing operation realized by the cooperation of the electric mechanism 3 and the operating mechanism 5, and an opening operation realized by the cooperation of the electric mechanism 3 and the button mechanism 2. Firstly, compared with the circuit breaker in the prior art in which both the closing / opening operations are realized by the cooperation of the electric mechanism 3 and the operating mechanism 5, the wear progress of the operating mechanism 5 is effectively slowed down, which is beneficial to prolonging the service life of the circuit breaker; secondly, during the closing / opening process, the driving gear part 305 of the electric mechanism 3 always rotates in the first direction, that is, during the closing / opening process, the motor 301 of the electric mechanism 3 does not need to change the direction, which is beneficial to simplifying the control process of the electric mechanism 3; thirdly, the motor 301 of the electric mechanism 3 does not need to frequently switch between forward / reverse rotation, thereby reducing the probability of damage to the motor 301, which is beneficial to prolonging the service life of the electric mechanism 3.

[0065] Preferably, Figure 1 As shown, the button mechanism 2 includes a button member 201 and a connecting member 204 respectively slidably arranged on the circuit breaker housing 1, a first connecting rod 202 whose two ends are respectively connected to the button member 2 and the connecting member 204, and a second connecting member 203 whose two ends are respectively connected to the connecting member 204 and the transmission member 501. It should be pointed out that the button member 201, the first connecting rod 202, and the connecting member 204 of the button mechanism 2 can also be designed as an integrated component, thereby reducing the number of parts. In order to facilitate the convenience of the button mechanism 2 to cooperate with other mechanisms and not affect the cooperation with the electric mechanism 3, the button mechanism 2 of the present invention is preferably a combination of the button member 201, the first connecting rod 202, the connecting member 204, and the second connecting rod 203. Further, an indicator (not shown in the figure) for indicating the opening and closing state is also provided in the button member 201, and an indicator window is provided on the button member 201. When the opening and closing action is performed, the button member 201 drives the indicator to swing or slide to display the opening and closing state of the circuit breaker.

[0066] Further, such as Fig.17 As shown, the circuit breaker further includes a locking mechanism 4, one end of which is a locking mechanism actuated end protruding outside the circuit breaker housing 1, and the other end is a locking mechanism mating end mating with the button mechanism 2. An improvement of the present invention is that the locking mechanism mating end of the locking mechanism 4 is mated with the button member 201 or the first connecting rod 202, and the driving gear member 305 of the electric mechanism 3 is mated with the connecting member 204; the button mechanism 2 adopts a combination of the button member 201, the first connecting rod 202, and the connecting member 204, so as to facilitate the mating of the button mechanism 2 with the locking mechanism 4 and the electric mechanism 3 at the same time. It should be noted that the circuit breaker of this embodiment is a plug-in circuit breaker, which is inserted and installed in the circuit breaker assembly position of the cabinet. The locking mechanism 4 cooperates with the button mechanism 2 and the housing of the circuit breaker assembly position to achieve locking and / or unlocking of the circuit breaker after it is installed in the circuit breaker assembly position, and / or prevent the circuit breaker from being installed in place, and / or prevent the circuit breaker from being installed in the circuit breaker assembly position or being pulled out of the circuit breaker assembly position in the closed state, and / or prevent the circuit breaker from being closed when it is not installed in the circuit breaker assembly position. The button mechanism 2 of the present invention is suitable for cooperating with each locking mechanism 4, which all belong to the protection scope of the present invention.

[0067] For example, one implementation of the locking mechanism is that a locking hole that matches with the activated end of the locking mechanism is correspondingly provided on the circuit breaker assembly position of the cabinet. After the circuit breaker is installed in place, the activated end of the locking mechanism of the locking mechanism 4 protrudes outside the circuit breaker housing 1 and protrudes into the locking hole of the cabinet to prevent the circuit breaker from being pulled out of the cabinet at will. When the button member 201 is pulled, the button member 201 or the first connecting rod 202 or the connecting member 204 or the indicating member can drive the locking mechanism mating end to retract the activated end of the locking mechanism into the circuit breaker housing 1, so that the circuit breaker can be pulled out of the circuit breaker assembly position. Another implementation method of the locking mechanism is that when the circuit breaker is not installed in the circuit breaker assembly position, the actuated end of the locking mechanism is squeezed by the cabinet wall to be retracted into the circuit breaker housing 1, and the mating end of the locking mechanism is limitedly matched with the button member 201 or the first connecting rod 202 or the connecting member 204 or the indicating member to prevent the button member 201 from moving in the closing direction, and the circuit breaker cannot be closed when it is not installed in the circuit breaker assembly position; when the circuit breaker is installed in the circuit breaker assembly position, the actuated end of the locking mechanism is no longer squeezed by the shell of the circuit breaker assembly position to move to the outside of the circuit breaker housing 1, so that the mating end of the locking mechanism is released from the limited matching with the button member 201 or the first connecting rod 202 or the connecting member 204, and the button member 201 can move in the closing direction and close the circuit breaker through the operating mechanism 5.

[0068] Preferably, Figure 4 , 9As shown in Figure 12, the circuit breaker of the present invention also includes an energy storage spring 3-5 arranged between the driven gear 306 and the transmission member 501; it is used to compensate for the inadequate automatic closing and improve the reliability of the automatic closing. The energy storage spring 3-5 is provided to allow a certain margin in the matching stroke of the sector gears of the driving gear member 305 and the driven gear 306, and secondly, even if the gears and structural members have matching errors due to wear, the circuit breaker can be reliably closed through the above-mentioned margin. Specifically, the driving gear member 305 rotates from the first initial position in the first direction until it engages with the driven gear 306, the driving gear member 305 continues to rotate and drives the driven gear 306 to rotate in the second direction, the driven gear 306 drives the transmission member 501 to rotate in the second direction through the energy storage spring 3-5, after the circuit breaker is closed, the driving gear member 305 continues to rotate in the first direction and drives the driven gear 306 to rotate in the second direction relative to the transmission member 501, so that the energy storage spring 3-5 stores energy until the driving gear member 305 rotates to the middle position and disengages from the driven gear 306. In the circuit breaker of the present invention, an energy storage spring 3-5 is arranged between the driven gear 306 of the electric mechanism 3 and the transmission member 501 of the operating mechanism 5. After the circuit breaker is closed, the driving gear member 305 of the electric mechanism 3 will drive the driven gear 306 to rotate in the second direction relative to the transmission member 501, so that the energy storage spring stores energy, thereby ensuring that the circuit breaker is closed in place, that is, ensuring that the circuit breaker is effectively closed, and improving the user's power safety. In particular, after the electric mechanism 3 is used for a long time, the gears will have matching errors with each other due to wear or errors in the position detection of the circuit board, resulting in the problem that the circuit breaker cannot be automatically closed in place. The energy storage spring of the present invention can reliably solve the above problem. Further, if Fig. 9 and 12 As shown, when the circuit breaker is in the closed state, the driving gear member 305 rotates from the middle position to the first direction and drives the button mechanism 2 to operate. The button mechanism 2 drives the transmission member 501 to rotate in the first direction. After the circuit breaker is opened, the driving gear member 305 continues to rotate to the first initial position.

[0069] The following is a second circuit breaker disclosed in the present invention:

[0070] like Fig.21 , 23aAs shown in , 23b, 25a and 25b, the circuit breaker of the present invention comprises an electric mechanism 3 and an operating mechanism 5 for realizing automatic opening and closing, the electric mechanism 3 and the operating mechanism 5 drive cooperation (including direct and indirect drive cooperation), the electric mechanism 3 comprises a motor 301 and a gear set, the gear set is connected to the motor 301 by driving, and the gear set comprises a trigger gear; the circuit breaker also comprises a switch device, a closing circuit, and an opening circuit; the switch device comprises a first switch element 9B drivingly matched with the trigger gear, the output ends of the first switch element 9B are respectively connected to the closing circuit and the opening circuit, and the motor 301 is respectively connected in series to the closing circuit circuit and opening circuit; when the circuit breaker is in the opening state and the first switch 9B connects the closing circuit and disconnects the opening circuit at the same time, a closing voltage signal is loaded at both ends of the first switch 9B and the closing circuit. After the electric mechanism 3 drives the circuit breaker to close, the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit; when the circuit breaker is in the closing state, the first switch 9B connects the opening circuit and disconnects the closing circuit at the same time, and a closing voltage signal is loaded at both ends of the first switch 9B and the opening circuit. After the electric mechanism 3 drives the circuit breaker to open, the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. The circuit breaker of the present invention, after completing the closing / opening operation, is driven by the trigger gear to drive the first switch 9B to switch the closing circuit / opening circuit. The control principle is simple. When a voltage signal is applied to the electric mechanism 3, the electric mechanism 3 will act. After completing the closing / opening operation, the trigger gear drives the first switch 9B to switch the closing circuit and the opening circuit, so that the motor can be stopped. The complex circuit structure and control principle for detecting the specific position of the gear in the prior art are not required, thereby simplifying the overall structure of the circuit breaker and the control circuit of the electric mechanism 3, and making the working performance of the circuit breaker of the present invention more reliable. It should be pointed out that the above-mentioned motor of the present invention is suitable for pure electric closing and opening operations.

[0071] The following is a third circuit breaker disclosed in the present invention:

[0072] Preferably, Fig.21 , 22 As shown in , 24a-24d, 26a-26d, the circuit breaker of the present invention further includes a manual operating component, a closing auxiliary circuit and an opening auxiliary circuit, and the manual operating component drives the circuit breaker to close / open through the operating mechanism 5; the switch device further includes a second switch 9C driven and matched with the manual operating component or the operating mechanism 5, and the output end of the second switch 9C is respectively connected to the closing auxiliary circuit and the opening auxiliary circuit; the manual operating component is driven and connected to the operating mechanism 5; the closing auxiliary circuit and the opening auxiliary circuit are respectively connected to the two input ends of the motor 301; the input end of the second switch 9C is connected to the input end of the first switch 9B;

[0073] When the circuit breaker is in the open state, the first switch 9B connects the closing circuit and the second switch 9C connects the closing auxiliary circuit, a closing voltage signal is loaded at both ends of the first switch 9B and the closing circuit. After the electric mechanism 3 drives the circuit breaker to close, the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit. At the same time, the action of the manual operating component or the operating mechanism 5 when closing drives the second switch 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit.

[0074] When the circuit breaker is in the closed state, the first switch 9B is connected to the opening circuit and the second switch 9C is connected to the opening auxiliary circuit, an opening voltage signal is loaded at both ends of the first switch 9B and the opening circuit. After the electric mechanism 3 drives the circuit breaker to open, the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. At the same time, the action of the manual operating component or the operating mechanism 5 when opening drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit.

[0075] When the circuit breaker is in the closed state, the first switch 9B connects the opening circuit and the second switch 9C connects the opening auxiliary circuit. After the circuit breaker is driven to open by the manual operating component, the action of the manual operating component or the operating mechanism 5 when opening drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit; a closing voltage signal is loaded at both ends of the first switch 9B and the opening circuit, and the motor 301 drives the trigger gear to rotate, and the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. Then the electric mechanism 3 drives the circuit breaker to close, and the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit. At the same time, the manual operating component or the operating mechanism 5 drives the second switch 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit;

[0076] When the circuit breaker is in the open state, the first switch 9B connects the closing circuit and the second switch 9C connects the closing auxiliary circuit. After the circuit breaker is driven to close by the manual operating component, the action of the manual operating component or the operating mechanism 5 when closing drives the second switch 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit; an opening voltage signal is loaded at both ends of the first switch 9B and the closing circuit, and the motor 301 drives the trigger gear to rotate, and the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit. Then the electric mechanism 3 drives the circuit breaker to open, and the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. At the same time, the manual operating component or the operating mechanism 5 drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit.

[0077] The circuit breaker of the present invention can close or open the circuit breaker normally by loading the closing voltage signal and the opening voltage signal, whether the current state of the circuit breaker (i.e., the opening or closing state) corresponds to or is inconsistent with the position of the trigger gear. It should be pointed out that the situation that "the current state of the circuit breaker is inconsistent with the position of the trigger gear" is caused by the electric mechanism 3 driving the circuit breaker to close or open through the operating mechanism 5, and then opening or closing the circuit breaker through the manual operating component; if only the electric mechanism 3 drives the circuit breaker to close or open through the operating mechanism 5, the current state of the circuit breaker and the position of the trigger gear are always consistent. Therefore, through the cooperation of the trigger gear, the first switch 9B, the closing circuit, the opening circuit, the second switch 9C, the closing auxiliary circuit, and the opening auxiliary circuit, the circuit breaker of the present invention can be compatible with manual / automatic closing and opening operations at the same time.

[0078] It should be pointed out that the second and third types of circuit breakers can be implemented on the basis of the first type of circuit breaker. Specifically: the second type of circuit breaker can be equipped with a first switch 9B, a closing circuit, and an opening circuit on the first type of circuit breaker, and the first switch 9B is driven in cooperation with the trigger gear of the electric mechanism 3; the third type of circuit breaker can be equipped with a second switch 9C, a closing auxiliary circuit, and an opening auxiliary circuit on the basis of the second type of circuit breaker, and the second switch 9C is driven in cooperation with the manual operating component or the operating mechanism 5.

[0079] like Figure 1-20 FIG. 1 shows the first embodiment of the circuit breaker of the present invention, which is the first embodiment of the first type of circuit breaker.

[0080] like Figure 1 , 9 -12, the circuit breaker of the present invention includes a circuit breaker housing 1 and a button mechanism 2, an electric mechanism 3 and an operating mechanism 5 arranged in the circuit breaker housing 1. The button mechanism 2 is connected to the operating mechanism 5 and can drive the circuit breaker to close / open through the operating mechanism 5 to achieve manual opening and closing; the electric mechanism 3 cooperates with the button mechanism 2 and / or the operating mechanism 5 to drive the circuit breaker to close / open through the operating mechanism 5 to achieve automatic opening and closing.

[0081] Preferably, Figure 1As shown, the electric mechanism 3 drives and cooperates with the transmission member 501 of the operating mechanism 5 to realize the closing of the circuit breaker, and drives and cooperates with the button mechanism 2 to realize the opening of the circuit breaker. The electric mechanism 3 includes a driving gear member 305 and a driven gear 306 pivotally arranged on the circuit breaker housing 1, respectively, and the driving gear member 305 drives and cooperates with the driven gear 306 and the button mechanism 2 respectively; the operating mechanism 5 includes a transmission member 501 pivotally arranged on the circuit breaker housing 1 and drivingly connected to the button mechanism 2, and the driven gear 306 is coaxially arranged with the transmission member 501 and drives and cooperates; the driving gear member 305 moves from a first initial position (such as Fig. 9 ) rotates in the first direction until it meshes with the driven gear 306 (as shown in FIG. Fig.10 As shown in FIG. 1 , the driving gear member 305 continues to rotate and drives the transmission member 501 to rotate in the second direction through the driven gear 306, so that after the circuit breaker is closed, the driving gear member 305 continues to rotate to the middle position (as shown in FIG. 1 ). Fig.12 The driving gear member 305 rotates from the middle position to the first direction and drives the button mechanism 2 to operate. The button mechanism 2 drives the transmission member 5 to rotate in the first direction. After the circuit breaker is opened, the driving gear member 305 continues to rotate to the first initial position.

[0082] The driving gear 305 drives the driven gear 306 to realize the rotation direction of the circuit breaker when closing, which is consistent with the rotation direction of the driving button mechanism 2 when opening, which is conducive to simplifying the control process of the electric mechanism 3. Figure 1 , 9 -12, the first direction is counterclockwise, and the second direction is clockwise. The driving gear 305 always keeps rotating counterclockwise (i.e., always rotates in the same direction) during the process of driving the circuit breaker to close and open. When the driving gear 305 is in the first initial position or the middle position, it is disengaged from the driven gear 306. When the driving gear 305 rotates to the first initial position or the middle position, the driving gear 305 or the driven gear 306 triggers the disconnection of the power supply circuit of the electric mechanism 3, so that the motor 301 is powered off and the driving gear 305 stops rotating, which can greatly simplify the control process of the electric mechanism 3. Of course, when the driving gear 305 rotates to the first initial position or the middle position, the driving gear 305 or the driven gear 306 triggers the position sensor, transmits the position information to the control chip, and then the control chip controls the motor to stop rotating. It is also possible, but the implementation is relatively complicated.

[0083] Preferably, the driven gear 306 and the transmission member 501 are integral components or separate components.

[0084] Preferably, the electric mechanism 3 comprises an electric motor 301 and a gear set which are sequentially connected and driven, and the gear set comprises a transmission gear set, a driving gear member 305 and a driven gear 306. Figure 1 The figure shows an embodiment of the electric mechanism 3. The electric mechanism 3 comprises a motor 301, a worm 302, a first transmission gear member 303, a second transmission gear member 304 and a driving gear member 305 which are sequentially driven and matched, and a driven gear 306 which is driven and matched with the driving gear member 305; the transmission gear set comprises the first transmission gear member 303 and the second transmission gear member 304, and the first transmission gear member 303, the second transmission gear member 304 and the driving gear member 305 are respectively pivotally arranged on the circuit breaker housing 1. Obviously, the number of transmission gear members of the transmission gear set can be reduced or increased as needed.

[0085] Preferably, Figure 3 As shown, the driving gear member 305 includes a first driving gear 305-1 and a driving gear 305-20 that are respectively drivingly matched with the driven gear 306 and the button mechanism 2. Specifically, the driving gear member 305 includes a first driving gear 305-1, a second driving gear 305-2 and a third driving gear 305-3 that are coaxially linked and arranged in sequence, the third driving gear 305-3 is drivingly matched with the second driving gear member 304 of the transmission gear group, and the first driving gear 305-1 and the second driving gear 305-2 are drivingly matched with the driven gear 306 and the button mechanism 2 respectively; further, as shown Figure 1 , 4 As shown, the first driving gear 305-1 and the driven gear 306 are both fan-shaped gears; the second driving gear 305-2 is provided with a driving tooth 305-20 that cooperates with the button mechanism 2. When the switch is closed, the driving gear member 305 rotates in the first direction, the first driving gear 305-1 meshes with the driven gear 306, and the driving tooth 305-20 avoids the button mechanism 2. After the switch is closed, the first driving gear 305-1 is disengaged from the driven gear 306; when the switch is opened, the driving gear member 305 continues to rotate in the first direction, and the driving tooth 305-20 cooperates with the button mechanism 2 to achieve opening. At this time, the first driving gear 305-1 and the driven gear 306 remain disengaged. Obviously, the driving tooth 305-20 can be Figure 3 The illustrated embodiment includes only one driving tooth 305-20, and may also be provided with a sector gear having multiple driving teeth as required, and the connecting member 204 on the button mechanism 2 may be provided with teeth to cooperate with the second driving gear 305-2 having multiple driving teeth. In addition, the driving tooth 305-20 may also be provided on the first driving gear 305-1.

[0086] Preferably, Figure 1As shown, the button mechanism 2 comprises a button member 201 and a connecting member 204 respectively slidably arranged on the circuit breaker housing 1, a first connecting rod 202 respectively connected to the button member 201 and the connecting member 204 at both ends, and a second connecting rod 203 respectively connected to the connecting member 204 and the transmission member 501 at both ends; by pressing / pulling the button member 201, the transmission member 501 is driven to rotate in the second direction / first direction through the first connecting rod 202, the connecting member 204, and the second connecting rod 203 connected in sequence, so as to close / open the circuit breaker. Further, as Figure 1 As shown, the second driving gear 305 - 2 of the driving gear member 305 is drivingly matched with the connecting member 204 .

[0087] Specifically, Figure 1 , 9 -12, the button member 201, the first connecting rod 202, the connecting member 204 and the second connecting rod 203 of the button mechanism 2 are arranged in a straight line from top to bottom. When the button member 201 is pulled upward / pressed downward, the button member 201 drives the transmission member 501 to rotate counterclockwise / clockwise through the first connecting rod 202, the connecting member 204 and the second connecting rod 203 connected in sequence, so that the circuit breaker is closed / opened; when the circuit breaker is in the closed state, the second driving gear 305-2 drives the connecting member 204 to move upward, and the connecting member 204 drives the transmission member 501 to rotate clockwise through the second connecting rod 203, so that the circuit breaker is opened.

[0088] Preferably, Fig.17 As shown, the circuit breaker of the present invention further includes a locking mechanism 4, one end of which is a locking mechanism actuated end, protruding outside the circuit breaker housing 1, and the other end is a locking mechanism mating end, which is limitedly mated with the button mechanism 2. The locking mechanism 4 includes a locking member pivotally disposed in the middle on the circuit breaker housing 1, and the two ends of the locking member are respectively a locking mechanism actuated end and a locking mechanism mating end. Specifically, as Fig.17 In the direction shown, the upper end and the lower end of the locking member of the locking mechanism 4 are respectively the actuated end and the mating end of the locking mechanism. When the button member 201 or the first connecting rod 202 is limitedly engaged with the mating end of the locking mechanism, the button member 201 cannot move downward (in the closing direction), and the circuit breaker cannot be closed.

[0089] Preferably, the first connecting rod 202 and the second connecting rod 203 are both U-shaped connecting rods.

[0090] Preferably, Figure 1 As shown, the button mechanism 2 also includes a first reset spring 205 for driving the connector 204 to reset, and is used to drive the button mechanism 2 to reset after the circuit breaker is tripped; the circuit breaker housing 1 also includes a connector track groove, and the connector 204 slides linearly along the connector track groove.

[0091] Preferably, Figure 2 FIG. 2 is an example of the connecting member 204 .

[0092] like Figure 2 As shown, the connecting member 204 is a strip-shaped member, including a connecting member body 204-0, a connecting member first hole 204-1 and a connecting member second hole 204-3 respectively arranged at both ends of the connecting member body 204-0 and respectively matched with the first connecting rod 202 and the second connecting rod 203, a connecting member driven table 204-4 drivingly matched with the driving teeth 305-20 of the driving gear member 305, a connecting member spring limiting boss 204-2 arranged on one side of the connecting member body 204-0, and a connecting member track boss 204-5 arranged on the connecting member body 204-0. Further, as Figure 2 As shown, the connector track boss 204-5 and the connector first hole 204-1 are arranged at the same end of the connector body 204-0, and the connector track boss 204-5 is arranged on the side of the connector body 204-0 facing the bottom plate of the circuit breaker housing 1; the connector actuated table 204-4 and the connector second hole 204-3 are arranged at the same end of the connector body 204-0, and the connector actuated table 204-4 is arranged facing the transmission member 501 of the operating mechanism 5; the connector spring limiting boss 204-2 is arranged on the side of the connector body 204-0 away from the electric mechanism 3.

[0093] Specifically, Figure 2 In the direction shown, the first connecting member hole 204-1 and the connecting member track boss 204-5 are located at the left end of the connecting member body 204-0, and the connecting member track boss 204-5 is arranged on the lower side of the connecting member body 204-0; the second connecting member hole 204-3 and the connecting member actuated table 204-4 are located at the right end of the connecting member body 204-0, and the connecting member actuated table 204-4 is arranged facing the right side; the connecting member spring limiting boss 204-2 is arranged on the rear side of the connecting member body 204-0.

[0094] like Figure 1 As shown, the first return spring 205 is arranged between the connector spring limiting boss 204-2 and the circuit breaker housing 1; the connector track boss 204-5 is slidably arranged in the connector track groove. The connector 204 and the circuit breaker housing 1 form an effective limit through the cooperation of the connector track boss 204-5 and the connector track groove, which ensures the stability of the sliding process of the connector 204, thereby improving the stability of the circuit breaker performance. Further, as Fig.17 As shown, the locking member 4 and the first return spring 205 are both located on the same side of the button member 201 and the connecting member 204. Fig.17 In the direction shown, the locking member 4 and the first return spring 205 are both located on the right side of the button member 201 and the connecting member 204 .

[0095] Preferably, Figure 1 As shown, one end of the button member 201 is an operating end located outside the circuit breaker housing 1, and the other end extends into the circuit breaker housing 1. A button member connecting hole for installing the first connecting rod 202 is provided on the other end. The button member connecting hole is a long waist-shaped hole, so that pressing the button member 201 makes one end have an idle stroke, which is used to pull the button member 201 of the button mechanism 2 when it is necessary to pull the circuit breaker out of the installation cabinet after the opening, so that the locking mechanism 4 is completely retracted into the circuit breaker housing, so as to contact the locking mechanism 4 and the limit fit of the shell of the circuit breaker assembly position, and pull the circuit breaker out of the circuit breaker assembly position.

[0096] Preferably, Figure 1 FIG. 1 is an embodiment of the operating mechanism 5 .

[0097] like Figure 1 As shown, the operating mechanism 5 includes a transmission member 501 and a rotating plate 505 respectively pivotally arranged on the circuit breaker housing 1, a jumper 503 and a lock 504 respectively pivotally arranged on the rotating plate 505 and locked, a third connecting rod 502 whose two ends are respectively connected to the transmission member 501 and the jumper 503, and a second reset spring 506 for driving the rotating plate 504, and the second reset spring 506 is arranged between the lock 504 and the circuit breaker housing 1. The circuit breaker also includes a static contact 1b and a moving contact 1a connected to the operating mechanism 5, one end of the moving contact 1a is connected to the rotating plate 505, and the static contact 1b is fixedly arranged on the circuit breaker housing 1. The structure, principle and working process of the operating mechanism 5 of this embodiment are similar to those of the prior art, and will not be repeated here. Of course, the operating mechanism 5 of the circuit breaker of the present invention can also adopt other structures.

[0098] Preferably, Figure 4-8 FIG. 2 shows a second embodiment of the circuit breaker of the present invention, which is the second embodiment of the first circuit breaker.

[0099] like Figure 4As shown, the difference between the circuit breaker of this embodiment and the first embodiment is that: it also includes an energy storage spring 3-5 arranged between the driven gear 306 and the transmission member 501; it is used to realize compensation for the inadequate automatic closing and improve the reliability of the automatic closing. The energy storage spring 3-5 is provided to allow a certain margin for the matching stroke of the sector gears of the driving gear member 305 and the driven gear 306, and secondly, the circuit breaker can be reliably closed even if the gears have matching errors due to wear. Specifically, the driving gear member 305 rotates from the first initial position to the first direction until it meshes with the driven gear 306, the driving gear member 305 continues to rotate and drives the driven gear 306 to rotate in the second direction, the driven gear 306 drives the transmission member 501 to rotate in the second direction through the energy storage spring 3-5, after the circuit breaker is closed, the driving gear member 305 continues to rotate in the first direction and drives the driven gear 306 to rotate in the second direction relative to the transmission member 501, so that the energy storage spring 3-5 stores energy and the moving and static contacts are reliably contacted, until the transmission gear member 305 rotates to the middle position and disengages from the driven gear 306, and the driven gear 306 is reset relative to the transmission member 501 under the action of the energy storage spring 3-5 releasing energy (the energy storage spring 3-5 releases energy, which will give the driven gear 306 a force to rotate relative to the transmission member 501 in the first direction).

[0100] Preferably, Figure 4 and 8 As shown, the energy storage spring 3-5 is a torsion spring, including a spring body 3-50, a first spring arm 3-51 and a second spring arm 3-52; the spring body 3-50 is arranged between the driven gear 306 and the transmission member 501 and is coaxially arranged with the driven gear 306 and the transmission member 501, the first spring arm 3-51 is limitedly matched with the transmission member 501, and the second spring arm 3-52 is limitedly matched with the driven gear 306. Further, as Figure 4-7 As shown, the transmission member 51 includes a driven gear limiting groove 501-306 arranged on one side thereof, the driven gear 306 includes a driven gear body 306-2 and a first sector gear portion 306-1 arranged on one side of the driven gear body 306-2, the driven gear body 306-2 is coaxially pivoted with the transmission member 501 on the circuit breaker housing 1, the first sector gear portion 306-1 is arranged in the driven gear limiting groove 501-306, one end of the first sector gear portion 306-1 is abutted against the side wall of one end of the driven gear limiting groove 501-306, and a first movement gap is provided between the other end of the first sector gear portion 306-1 and the side wall of the other end of the driven gear limiting groove 501-306; the spring body 3-50 is located between the driven gear body 306-2 and the transmission member 51.

[0101] Preferably, Figure 4-7As shown, the first sector gear portion 306-1 includes a first sector gear portion head end face 306-10 and a first sector gear portion tail end face 306-11 respectively arranged at two ends thereof, and the transmission member 501 also includes a driven gear limiting groove head end face 501-6 and a driven gear limiting groove tail end face 501-4 arranged at both ends of the driven gear limiting groove 501-306, the first sector gear portion head end face 306-10 is abutted against the driven gear limiting groove head end face 501-6, and a first movement gap is provided between the first sector gear portion tail end face 306-11 and the driven gear limiting groove tail end face 501-4.

[0102] Specifically, Figure 4 As shown, when the circuit breaker is in the closed state or the open state, the energy storage spring 3-5 makes the first sector gear portion head end face 306-10 of the driven gear 306 abut against the first end face 501-6 of the driven gear slot, and a first movement gap is formed between the first sector gear portion tail end face 306-11 and the driven gear limit slot tail end face 501-4; Figure 9-12 As shown, the driving gear member 305 rotates in the first direction (counterclockwise) until it meshes with the first sector gear portion 306-1 of the driven gear 306 (as shown in FIG. Fig.10 As shown in FIG. 1 , the driving gear member 305 continues to rotate and drives the driven gear 306 to rotate in the second direction (clockwise) through the first sector gear portion 306-1. The driven gear 306 drives the transmission member 501 to rotate in the second direction (clockwise) through the energy storage spring 3-5. The operating mechanism 5 drives the moving contact 1a and the stationary contact 1b to close (as shown in FIG. 1 ). Fig.11 As shown), after the circuit breaker is closed, the transmission member 501 is fixed in position and no longer rotates. Fig.11 As shown, at this time, the driving gear member 305 is still meshed with the first sector gear portion 306-1, and is preferably set to be disengaged when there is one irregular tooth difference. The driving gear member 305 continues to rotate and drives the driven gear 306 to rotate in the second direction (clockwise direction) relative to the transmission member 501 through the first sector gear portion 306-1, so that the energy storage spring 3-5 stores energy, and the energy storage spring 3-5 applies the stored energy to the transmission member 501 (that is, applies a thrust to the transmission member 501 to make it rotate in the first direction), ensuring that the circuit breaker can still be effectively closed due to the size deviation of the structural member or the wear of the gears of the motor mechanism, as shown in FIG. Fig.12 As shown, after the circuit breaker is closed, the driving gear 305 continues to rotate to the middle position and disengages from the first sector gear portion 306-1, and the driven gear 306 will reset under the energy release of the energy storage spring 3-5 (that is, the first sector gear portion first end face 306-10 returns to the state of abutting against the first end face 501-6 of the driven gear limit groove).

[0103] Preferably, Figure 4As shown, the driven gear 306 also includes a driven gear spring limiting hole 306-3 arranged on the driven gear body 306-2, and the transmission member 501 also includes a transmission member spring limiting groove 501-5 arranged at one end of the driven gear limiting groove 501-306, and the transmission member spring limiting groove 501-5 and the driven gear limiting groove tail end face 501-4 are located at the same end of the transmission gear limiting groove 501-306; the first spring arm 3-51 is limitedly matched with the transmission member spring limiting groove 501-5, and the second spring arm 3-52 is limitedly matched with the driven gear spring limiting hole 306-3.

[0104] Preferably, Figure 4-7 As shown, the transmission member 501 also includes a transmission member body 501-0 and a transmission member spring assembly groove 501-7 arranged on one side of the transmission member body 501-0, and the driven gear limiting groove 501-306 is arranged on one side of the transmission member spring assembly groove 501-7; the driven gear body 306-2 and the first sector gear part 306-1 are staggered, and the first sector gear part 306-1 is offset to the side where the transmission member 501 is located relative to the driven gear body 306-2; the spring body 3-50 is arranged in the transmission member spring assembly groove 501-7 and is limited between the driven gear body 306-2 and the transmission member body 501-0.

[0105] Preferably, Figure 6 and 7 FIG. 5 shows an embodiment of the transmission member 501 .

[0106] like Figure 6 and 7 As shown, the transmission member 501 is a cylindrical structure, including a transmission member body 501-0, a transmission member spring assembly groove 501-7 and a driven gear limiting groove 501-306 arranged on one side of the transmission member body 501-0, and a transmission member shaft hole 501-3, a first transmission member connecting hole 501-1 and a second transmission member connecting hole 501-2 respectively arranged on the transmission member body 501-0; the transmission member spring assembly groove 501-7 and the driven gear limiting groove 501-306 are located on the same side of the transmission member body 501-0, and the driven gear limiting groove 501- 306 is arranged on one side of the transmission member spring assembly groove 501-7; the transmission member shaft hole 501-3, the first transmission member connecting hole 501-1 and the second transmission member connecting hole 501-2 are located at the three vertices of a triangle, the first transmission member connecting hole 501-1 is arranged close to the driven gear limiting groove 501-306, the transmission member 501 is pivoted through the transmission member shaft hole 501-3, the first transmission member connecting hole 501-1 is connected to the second connecting rod 203 of the button mechanism 2, and the second transmission member connecting hole 501-2 is connected to the third connecting rod 502 of the operating mechanism 5.

[0107] Preferably, Figure 7 and 13 As shown, the transmission member 501 also includes a travel limit groove 501-8, and the travel limit groove 501-8 and the driven gear limit groove 501-306 are respectively arranged on both sides of the transmission member spring assembly groove 501-7; the circuit breaker housing 1 also includes an in-place stopper 102 arranged on one side of the transmission member 501; when the circuit breaker is in the open state, the side wall of one end of the travel limit groove 510-8 is limited and matched with the in-place stopper 102, and when the circuit breaker is in the closed state, the side wall of the other end of the travel limit groove 510-8 is limited and matched with the in-place stopper 102. Further, as Fig.13 As shown, when the circuit breaker is closed, one end of the travel limit slot 501-8 (such as Fig.13 The direction shown is the lower end of the travel limit slot 501-8) and the in-position stopper 102 limit cooperation, when the circuit breaker is opened, the other end of the travel limit slot 501-8 (such as Fig.13 The direction shown is the upper end of the travel limit groove 501-8) and the in-position stopper 102. The travel limit groove 510-8 and the in-position stopper 102 cooperate to effectively limit the rotation stroke of the transmission member 501, thereby preventing the transmission member 501 from excessively rotating and damaging the operating mechanism 5.

[0108] Preferably, Figure 4 and 5 FIG. 1 is an example of an embodiment of the driven gear 306 .

[0109] like Figure 4 and 5 As shown, the driven gear 306 includes a driven gear body 306-2, a first sector gear portion 306-1, and a driven gear shaft hole 306-4 and a driven gear spring stopper hole 306-3 respectively arranged on the driven gear body 306-2; the driven gear body 306-2 includes a body base plate 306-20, a body stopper 306-21 and a body spring stopper 306-22 which are coaxially arranged in sequence and have decreasing diameters in sequence, and the body base plate 306-2 0 is against one side of the transmission member body 501-0 of the transmission member 501, the body limit platform 306-21 is inserted into the transmission member spring assembly groove 501-7 of the transmission member 501, and the body spring limit platform 306-22 is inserted in the middle of the spring body 3-50 of the energy storage spring 3-5; one end of the first sector gear part 306-1 is respectively connected to one side of the body substrate 306-20 connected to the body limit platform 306-21 and the outer peripheral edge of the body limit platform 306-21. Further, as Figure 4 and 5 As shown, the driven gear spring limiting hole 306 - 3 is located between the driven gear shaft hole 306 - 4 and the first sector gear portion 306 - 1 .

[0110] Preferably, Figure 14-16 FIG. 2 shows a third embodiment of the circuit breaker of the present invention, which is also the third embodiment of the first type of circuit breaker.

[0111] like Figure 14-16 As shown, the difference between the circuit breaker of this embodiment and the circuit breaker of the first embodiment is that: the circuit breaker further includes a manual-automatic switching device arranged in the circuit breaker housing 1. The circuit breaker is a plug-in circuit breaker, and the circuit breaker housing 1 is basically a parallelepiped structure, including a circuit breaker operation interface 1i arranged at one end thereof, a button assembly hole and an outlet terminal 881 arranged on the circuit breaker operation interface 1i, one end of the button mechanism 2 is inserted in the button assembly hole, and an inlet terminal 880 is arranged at the other end of the circuit breaker housing 1; the circuit breaker further includes a manual-automatic switching device arranged in the circuit breaker housing 1, the manual-automatic switching device includes a switching operating element 7a and a switching switch element 9A, the switching operating element 7a is driven and matched with the switching switch element 9A, and the switching switch element 9A is used to realize the switching of the circuit breaker between the manual working mode and the automatic working mode, and the automatic working mode of the circuit breaker is enabled or disabled by controlling the working state of the electric mechanism 3; the switching operating element 7a is arranged on the circuit breaker operation interface 1i, located on one side of the button assembly hole and movably connected to the circuit breaker housing 1. The manual-automatic switching device of the circuit breaker of the present invention includes a switching operating element 7a and a switching switch element 9A that are driven and matched, and has a simple structure and is easy to operate; the switching operating element 7a, one end of the button mechanism 2 and the output terminal 881 are all located on the circuit breaker operation interface 1i, with a large operating space, which is convenient for users to operate the circuit breaker and easy to observe.

[0112] Further, such as Figure 14-16 As shown, the manual-automatic switching device also includes a switching transmission element 8a, and the switching operating element 7a drives the switching switch element 9A to operate through the switching transmission element 8a; the switching operating element 7a is a knob rotatably arranged on the circuit breaker housing 1, including a knob connecting portion 70a and a knob operating end 71a and a knob driving portion 72a respectively arranged on both sides of the knob connecting portion 70a; the switching switch element 9A is a micro switch, one end of the switching transmission element 8a is drivingly connected to the knob driving portion 72a, and the other end is drivingly matched with the switching switch element 9A; the knob is turned to drive the switching transmission element 8a to move toward or away from the direction where the switching switch element 9A is located, pressing or releasing the driving rod of the micro switch.

[0113] Further, such as Fig.16As shown, the knob driving part 720a includes a knob driving inclined surface 720a drivingly matched with the switching transmission element 8a, and the knob driving inclined surface 720 gradually deviates toward the switching transmission element 8a from one end close to the knob connecting part 70a to the other end. The various components of the manual-automatic switching device adopt a mechanical transmission mode, which is reliable in transmission, simple in structure and easy to assemble.

[0114] It should be pointed out that the electric mechanism 3 has two working states, namely: normal working state and out-of-working state; in the automatic working mode, the electric mechanism 3 is in a normal working state, the power supply circuit of the electric mechanism 3 is continuous, and / or the electric mechanism 3 can normally receive the closing / opening signal, and can perform manual opening and closing and automatic opening and closing; in the manual working mode, the electric mechanism 3 is in a out-of-working state, the power supply circuit of the electric mechanism 3 is cut off, and / or the electric mechanism 3 cannot receive the closing / opening signal, and can only be opened and closed manually.

[0115] Preferably, the switching switch element 9a is connected in series in the power supply circuit of the electric mechanism 3. By cutting off or connecting the switching switch element 9a, the power supply circuit of the electric mechanism 3 can be cut off or connected, thereby realizing the circuit breaker in the manual working mode, that is, only manual opening and closing, and no automatic opening and closing (the power supply circuit of the electric mechanism 3 is cut off) and the automatic working mode, that is, the automatic working mode is enabled, and at the same time, manual opening and closing and automatic opening and closing (the power supply circuit of the electric mechanism 3 is connected) can be switched.

[0116] Preferably, the circuit breaker also includes a circuit board 111 connected to the electric mechanism 3, and the switching element 9a is arranged on the circuit board 111 and is connected to the power control system of the electric mechanism 3 through the circuit board 111. The power control system cuts off or connects the working power of the electric mechanism 3 by switching the switching element 9a, thereby realizing the switching of the circuit breaker between the manual working mode and the automatic working mode.

[0117] In addition, the switching switch element 9A can also be used to connect to the control chip to transmit the switching control signal. The control chip realizes the switching of the circuit breaker between the manual working mode and the automatic working mode according to the high and low levels of the switching control signal. When the circuit breaker is in the manual working mode, even if the control chip receives the automatic closing control signal, it does not control the electric mechanism to perform the automatic closing operation.

[0118] Preferably, Fig.15As shown, the outlet terminal 881 is a plug-in type terminal, and the circuit breaker housing 1 also includes an outlet hole 1o and a wire removal hole 1d of the outlet terminal 881 arranged on the circuit breaker operation interface 1i. The outlet hole 1o and the wire removal hole 1d are used in a one-to-one manner. The wire is inserted through the outlet hole 1o to connect with the outlet terminal 881 and is clamped and fixed by the elastic member in the outlet terminal 881. The outlet hole 1o is used to drive the elastic member to enable the wire to be pulled out. The outlet hole 1o, the wire removal hole 1d and the switching operating element 7a are all located on the same side of the button assembly hole, and the switching operating element 7a is located between a wire removal hole 1d and the button assembly hole. Further, as Fig.15 As shown, the circuit breaker housing 1 includes two wire outlet holes 1o and two wire removal holes 1d, which are respectively a first wire outlet hole and a first wire removal hole used in conjunction with each other, and a second wire outlet hole and a second wire removal hole used in conjunction with each other. The first wire removal hole and the second wire outlet hole are arranged close to the button assembly hole, and the switching operating element 7a is located in the space surrounded by the first wire removal hole, the second wire outlet hole and the button assembly hole. Further, as Fig.15 As shown, the first wire outlet hole, the first wire removal hole, and the switching operating element 7a are sequentially arranged side by side on one side of the circuit breaker operation interface 1i, and the second wire removal hole and the second wire outlet hole are sequentially arranged side by side on the other side of the circuit breaker operation interface 1i.

[0119] Specifically, Fig.14 and 16 In the direction shown, the upper end of the switching transmission element 8a is driven to cooperate with the switching operating element 7a, and the lower end is driven to cooperate with the switching switch element 9a; the switching operating element 7a is screwed to drive the switching transmission element 8a to move downward, and the switching transmission element 8a presses the driving rod of the micro switch (switching switch element 9a) to realize signal switching, thereby driving the circuit breaker to switch between the manual working mode and the automatic working mode; the first wire outlet hole, the first wire removal hole, and the switching operating element 7a are arranged side by side from left to right on the upper side of the circuit breaker operating interface 1i, and the second wire removal hole and the second wire outlet hole are arranged side by side from left to right on the lower side of the circuit breaker operating interface 1i.

[0120] It should be pointed out that the switching operating element 7a is not limited to a knob, but can also be a button or a sliding paddle. Specifically, if the switching operating element 7a is a button, by pressing / pulling the button, the switching transmission element 8a is driven to move toward or away from the switching switch element 9a, and the switching switch element 8a triggers or releases the switching switch element 9a; or, if the switching operating element 7a is a sliding paddle, which is slidably arranged on the circuit breaker operation interface 1i of the circuit breaker housing 1, by sliding the sliding paddle, the switching transmission element 8a is driven to move toward or away from the switching switch element 9a, and the switching switch element 8a triggers or releases the switching switch element 9a.

[0121] Preferably, Fig.16As shown, the knob driving portion 72a includes a knob driving inclined surface 720a drivingly matched with the switching transmission element 8a, and the knob driving inclined surface 720a gradually inclines from the end connected to the knob connecting portion 70a to the end of the knob driving inclined surface 720a close to the switching switch element 9a. Further, the knob driving inclined surface 720a is a spiral inclined surface, inclining from the upper end to the lower end.

[0122] It should be noted that the knob driving portion 72a may not be provided with the knob driving inclined surface 720a, but may be threadedly connected to the switching transmission element 8a, so that the switching transmission element 8a cannot rotate, and turning the knob may also drive the switching transmission element 8a to move toward or away from the switching switch element 9a. Of course, there are many other implementations of the switching operating element 7a, as long as they can drive the switching transmission element 8a to move toward or away from the switching switch element 9a, which will not be described one by one here.

[0123] Preferably, Fig.14 and 16 As shown, the manual-automatic switching device further includes a transmission element return spring 10 for driving the switching transmission element 8a to return.

[0124] Preferably, Fig.16 FIG. 8 is an embodiment of the switching transmission element 8 a.

[0125] like Fig.16 As shown, the switching transmission element 8a is a rod-shaped member, including a transmission element driven portion 80a, a transmission element spring stopper 82a and a transmission element transmission portion 81a connected in sequence, the transmission element driven portion 80a is drivingly matched with the knob driving portion 720a, and the transmission element transmission portion 81a is drivingly matched with the switching switch element 9A. Fig.14 and 16 As shown, the transmission element reset spring 10 is sleeved on the transmission element transmission part 81a, one end of which is limitedly matched with the transmission element spring limit platform 82a, and the other end of which is limitedly matched with the circuit breaker housing 1.

[0126] Preferably, Fig.14As shown, the circuit breaker housing 1 also includes a transmission element assembly groove arranged on one side of the button mechanism 2, and the transmission element assembly groove includes an assembly groove upper section 103-1, an assembly groove lower section 103-2 and an assembly groove tail section connected in sequence, the width of the assembly groove lower section 103-2 is greater than the width of the assembly groove upper section 103-1 and the width of the assembly groove lower section 103-2 is greater than the width of the assembly groove tail section, the connection between the assembly groove lower section 103-2 and the assembly groove upper section 103-1 forms a first step structure, and the connection between the assembly groove lower section 103-2 and the assembly groove tail section is A second step structure is formed, the driven part 80a of the transmission element is arranged in the middle of the upper section 103-1 of the assembly groove, the transmission part 81a of the transmission element is arranged in the middle of the lower section 103-2 of the assembly groove, the spring limit platform 82a of the transmission element is limited and matched with the first step structure, the transmission element return spring 10 is arranged in the middle of the lower section 103-2 of the assembly groove, one end is limited and matched with the spring limit platform 82a of the transmission element, and the other end is limited and matched with the second step structure, and the free end of the transmission part 81a of the transmission element passes through the tail section of the assembly groove and is limited and matched with the switching switch element 9A.

[0127] Specifically, Fig.14 As shown, the upper section 103 - 1 of the assembly slot, the lower section 103 - 2 of the assembly slot and the tail section of the assembly slot are arranged in sequence from top to bottom and are connected in sequence; the transmission element assembly slot is located as a whole between the button mechanism 2 and the output terminal 881 .

[0128] It should be noted that, in the present embodiment, the electric mechanism 3 directly drives the circuit breaker to close through the operating mechanism, and drives the circuit breaker to open through the button mechanism 2. As other embodiments, the electric mechanism 3 can also directly drive the circuit breaker to open and / or close through the operating mechanism, and drive the circuit breaker to open and / or close through the button mechanism 2, which are all applicable to the manual-automatic switching device of the present invention.

[0129] Preferably, Figure 1 , 17 -20 shows the fourth embodiment of the circuit breaker of the present invention, which is the fourth embodiment of the first type of circuit breaker.

[0130] Preferably, Figure 1 , 17As shown in Figure 18, the circuit breaker includes a circuit breaker housing 1, and a button mechanism 2, an electric mechanism 3, an operating mechanism 5, a protection mechanism, an arc extinguishing system 7, a current sampling device 112, an incoming terminal 880 and an outgoing terminal 881 arranged in the circuit breaker housing 1; the button mechanism 2 drives the circuit breaker to close / open through the operating mechanism 5; the electric mechanism 3 drives the circuit breaker to close / open through the button mechanism 2 and / or the operating mechanism 5; the protection mechanism cooperates with the operating mechanism 5 to trigger the circuit breaker to trip; the incoming terminal 880 and the outgoing terminal 881 are respectively arranged at both ends of the circuit breaker housing 1. ; The operating mechanism 5 is arranged in the middle of the circuit breaker housing 1; The arc extinguishing system 7 and the protection mechanism are arranged side by side between the operating mechanism 5 and the incoming terminal 880; The electric mechanism 3 is arranged between the outgoing terminal 881 and the operating mechanism 5, and the electric mechanism 3 and the outgoing terminal 881 are arranged on the same side of the button mechanism 2; One end of the button mechanism 2 protrudes outside the end of the circuit breaker housing 1 provided with the outgoing terminal 881; The current sampling device 112 is arranged between the protection mechanism and the incoming terminal 880, and the two ends of the sampling device 112 are electrically connected to the protection mechanism and the incoming terminal 880 respectively. The circuit breaker of the present invention has a reasonable internal layout design and a compact layout between the components, which can effectively reduce the overall specifications of the circuit breaker and conform to the development trend of miniaturization of the circuit breaker; Moreover, the current sampling device 112 is arranged between the overload protection mechanism 110 or the short-circuit protection mechanism 6 arranged side by side with the arc extinguishing system 7 and the incoming terminal 880, which significantly improves the safety of the current sampling device 112 and facilitates the export of the signal of the current sampling device 112.

[0131] Preferably, the protection mechanism is a short-circuit protection mechanism 6 or an overload protection mechanism 110; when the circuit breaker includes both the short-circuit protection mechanism 6 and the overload protection mechanism 110, the protection mechanism is the short-circuit protection mechanism 6, the arc extinguishing system 7 and the short-circuit protection mechanism 6 are arranged side by side, the operating mechanism 5 and the overload protection mechanism 110 are arranged side by side in the middle of the circuit breaker housing 1, and the sampling device 112 is arranged between the short-circuit protection mechanism 6 and the incoming terminal 880; or, the protection mechanism is the overload protection mechanism 110, the arc extinguishing system 7 and the overload protection mechanism 110 are arranged side by side, the operating mechanism 5 and the short-circuit protection mechanism 6 are arranged side by side in the middle of the circuit breaker housing 1, and the sampling device 112 is arranged between the overload protection mechanism 110 and the incoming terminal 880.

[0132] Preferably, Fig.17In the preferred embodiment shown, the operating mechanism 5 and the overload protection mechanism 110 are arranged side by side in the middle of the circuit breaker housing 1, the arc extinguishing system 7 and the short-circuit protection mechanism 6 are arranged side by side, the overload protection mechanism 110 and the arc extinguishing system 7 are located on one side of the circuit breaker housing 1, and the operating mechanism 5 and the short-circuit protection mechanism 6 are located on the other side of the circuit breaker housing 1; the current sampling device 112 is arranged between the short-circuit protection mechanism 6 and the incoming line terminal 880, the incoming line terminal 880 includes an L-pole incoming line terminal, and the current sampling device 112 is connected in series between the short-circuit protection mechanism 6 and the L-pole incoming line terminal. Further, as Fig.17 As shown, the circuit breaker housing 1 further includes a sampling device assembly groove 112a, and two ends of the sampling device assembly groove 112a are respectively opposite to the L-pole incoming terminal and the short-circuit protection mechanism 6.

[0133] In particular, the short-circuit protection mechanism 6 of the present invention includes an electromagnetic tripping mechanism. When a short circuit occurs, the electromagnetic force increases to trigger the operating mechanism 5 to trip. The overload protection mechanism 110 includes a bimetallic strip. When overloaded, the bimetallic strip bends to trigger the lock of the operating mechanism 5 to release the lock and the jumper, so that the operating mechanism 5 trips. There is no need for the chip to participate in the detection, so as to avoid external interference to the chip and achieve reliable protection. However, in order to realize the monitoring of the current, a corresponding current sampling device 112 is set, which can be output to an external monitoring device. The present invention sets the current sampling device 112 in an area away from the core components of the circuit breaker, which not only avoids the impact on the core components of the circuit breaker, but also significantly improves the safety and reliability of the current sampling device 112.

[0134] Further, such as Fig.17 and 18 As shown, the circuit breaker of the present invention further includes a circuit board 111 connected to the electric mechanism 3, the button mechanism 2, the electric mechanism 3, the operating mechanism 5, the overload protection mechanism 110, the arc extinguishing system 7 and the current sampling device 112 are arranged on one side of the circuit board 111, and the bottom plate of the circuit breaker housing 1 is located on the other side of the circuit board 111. The circuit breaker of the present invention adopts the above layout to arrange the circuit board 111, which can significantly increase the installation space of the circuit board 111 and reduce the size requirement for the circuit board 111. On the one hand, the design and installation of the circuit board 111 are more convenient, and on the other hand, the circuit board 111 can also carry more functions.

[0135] Preferably, Fig.19 and 20 As shown, the circuit breaker also includes a circuit board slot 113 connected to the circuit board 111. The circuit board slot 113 and the incoming line terminal 880 are arranged at the same end of the circuit breaker housing 1. The incoming line terminal 880 includes an L-pole incoming line terminal and an N-pole incoming line terminal arranged side by side and spaced apart. The circuit board slot 113 is arranged between the two incoming line terminals 880. The circuit board 111 obtains working power and control signals through the circuit board slot 113.

[0136] Specifically, Fig.17 In the direction shown, the incoming terminal 880 and the outgoing terminal 881 are respectively arranged at the upper end and the lower end of the circuit breaker housing 1, and the two incoming terminals 880 are respectively the N-pole incoming terminal and the L-pole incoming terminal arranged side by side on the left and right; the outgoing terminal 881 and the button mechanism 2 are arranged side by side on the left and right, the electric mechanism 3 is arranged below the outgoing terminal 881 and above the operating mechanism 5, and the electric mechanism 3 and the button mechanism 2 are arranged side by side on the left and right; the overload protection mechanism 110 and the operating mechanism 5 are arranged side by side on the left and right in the circuit breaker housing 1; the arc extinguishing system 7 and the short-circuit protection mechanism 6 are arranged side by side on the left and right below the overload protection mechanism 110 and the operating mechanism 5; the current sampling device 112 is arranged between the short-circuit protection mechanism 6 and the incoming terminal 880, and is located on the right side of the circuit breaker housing 1; the sampling device assembly groove 112 is arranged between the short-circuit protection mechanism 6 and the L-pole incoming terminal, with the upper end opposite to the short-circuit protection mechanism 6 and the lower end opposite to the L-pole incoming terminal. It should be pointed out that, as another embodiment, the overload protection mechanism 110 and the short-circuit protection mechanism 6 can be interchanged, and the current sampling device 112 is arranged between the overload protection mechanism 110 and the incoming terminal 880 .

[0137] It should be noted that, in this embodiment, the electric mechanism 3 directly drives the circuit breaker to close through the operating mechanism, and drives the circuit breaker to open through the button mechanism 2. As other embodiments, the electric mechanism 3 can also directly drive the circuit breaker to open and / or close through the operating mechanism, and drive the circuit breaker to open and / or close through the button mechanism 2, which are all applicable to the layout structure of this embodiment. In addition, the electric mechanism 3 in the fifth embodiment of the present invention controls the motor by controlling the power supply of the motor 301. Other similar schemes that control the motor 301 through a control chip and obtain the closing position, opening position and initial position between the closing position and the opening position of the trigger gear through multiple position sensors (micro switches) are all applicable to the layout structure of this embodiment.

[0138] Preferably, Fig.21 , 23a 23b is the fifth embodiment of the circuit breaker of the present invention, which is the first embodiment of the second type of circuit breaker.

[0139] like Fig.21 , 23aAs shown in Figures 23a and 23b, the circuit breaker of the present invention comprises an electric mechanism 3 and an operating mechanism 5, which are driven in coordination with each other; the electric mechanism 3 comprises an electric motor 301 and a gear set, which is driven and connected to the electric motor 301, and the gear set comprises a trigger gear; the circuit breaker also comprises a switch device, a closing circuit, and an opening circuit, the switch device comprises a first switch element 9B driven and matched with the trigger gear, the output ends of the first switch element 9B are respectively connected to the closing circuit and the opening circuit, and are used to connect the closing circuit and disconnect the opening circuit at the same time, or disconnect the closing circuit and connect the opening circuit at the same time. , the motor 301 is connected in series in the closing circuit and the opening circuit respectively; when the circuit breaker is in the opening state and the first switch 9B connects the closing circuit and disconnects the opening circuit at the same time, the automatic opening cannot be triggered, and the closing voltage signal is loaded at both ends of the closing circuit externally or internally by the circuit breaker to trigger the automatic closing, the motor 301 is energized to rotate, and after the electric mechanism 3 drives the circuit breaker to close through the operating mechanism 5, the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit. At this time, the closing power supply loaded at both ends of the closing circuit can no longer make the motor 301 rotate, and the circuit breaker is in the closing state;

[0140] When the circuit breaker is in the closed state and the first switch component 9B disconnects the closing circuit and connects the opening circuit, the automatic closing cannot be triggered. The circuit breaker loads an opening voltage signal at both ends of the opening circuit outside or inside the circuit breaker to trigger the automatic opening, driving the motor 301. After the electric mechanism 3 drives the circuit breaker to open through the operating mechanism 5, the trigger gear drives the first switch component 9B to disconnect the opening circuit and connect the closing circuit, and the motor 301 stops rotating.

[0141] Further, such as Fig.23a and 23b As shown, the first switch element 9B includes a common contact b3, a normally closed contact b0 and a normally open contact b1, the normally closed contact b0 and the normally open contact b1 are respectively connected to the closing circuit and the opening circuit, or the normally closed contact b0 and the normally open contact b1 are respectively connected to the opening circuit and the closing circuit. Fig.23a and 23b In the embodiment shown, the normally closed contact b0 is connected in series with the closing circuit, and the normally open contact b1 is connected in series with the opening circuit; when the common contact b3 is connected with the normally closed contact b0, the closing circuit is connected, and when the common contact b3 is connected with the normally open contact b1, the opening circuit is connected.

[0142] Further, such as Fig.23a and 23bAs shown, the motor 301 is a DC motor, the closing circuit includes a diode D3 and a diode D2, the normally closed contact b0 is connected to the anode of the diode D3, the cathode of the diode D3 is connected to the positive terminal of the motor 301, and the negative terminal of the motor 301 is connected to the anode of the diode D2; the opening circuit includes a diode D1 and a diode D4, the normally open contact b1 is connected to the cathode of the diode D1, the anode of the diode D1 is connected to the negative terminal, and the positive terminal is connected to the cathode of the diode D4; the common contact b3 is connected to the power terminal E0, and the cathode of the diode D2 and the anode of the diode D4 are both connected to the power terminal E1.

[0143] Preferably, Fig.23a and 23b As shown, the closing voltage signal and the opening voltage signal are power supply voltage signals with opposite directions, which are working power supplies for the motor 301. Furthermore, when the circuit breaker is closed or opened, the motor 301 always rotates in the same direction.

[0144] Preferably, Fig.21 As shown, the first switch 9B is a micro switch, including a first driving rod drivingly matched with the trigger gear. Fig.21 As shown, the trigger gear is the third drive gear 305-3 of the drive gear member 305, including a switch drive platform 305-4 arranged on one side of the third drive gear 305-3; after the electric mechanism 3 drives the circuit breaker to close through the operating mechanism 5, the third drive gear 305-3 also rotates and drives the switch drive platform 305-4 to press the first drive rod, so that the first switch member 9B disconnects the closing circuit and connects the opening circuit; after the electric mechanism 3 drives the circuit breaker to open through the operating mechanism 5, the third drive gear 305-3 also rotates and drives the switch drive platform 305-4 to release the first drive rod, so that the first switch member 9B disconnects the opening circuit and connects the closing circuit. Obviously, the trigger gear is not limited to the drive gear member 305, and can also be the first transmission gear member 303 or the second transmission gear member 304 or other gears.

[0145] Further, such as Fig.17 , 18 As shown in FIG. 21 , the first switch element 9B is disposed between the first driving gear 305 - 3 and the circuit board 111 , and is connected to the circuit board 111 .

[0146] Preferably, Fig.21As shown, the circuit breaker also includes a manual operating component, the manual operating component and the electric mechanism 3 are respectively connected to the operating mechanism 5, and the manual operating component drives the circuit breaker to close / open through the operating mechanism 5; the electric mechanism 3 also includes a driving gear member 305 and a driven gear 306 which are respectively pivotally arranged, the driving gear member 305 is a trigger gear, the driving gear member 305 is driven and matched with the manual gear 306, and the driven gear 306 is coaxially arranged and driven and matched with the transmission member 501; the driving gear member 305 rotates from the first initial position to the first direction until it is meshed with the driven gear 306, and the driving gear member 305 is rotated ... The driving gear 305 continues to rotate and drives the transmission member 501 to rotate in the second direction through the driven gear 306, so that after the circuit breaker is closed, the driving gear 305 continues to rotate to the middle position to drive the first switch member 9B to disconnect the closing circuit and connect the opening circuit and disengage from the driven gear 306; the driving gear 305 rotates from the middle position to the first direction and drives the manual operating component to operate, and the manual operating component drives the transmission member 501 to rotate in the first direction, so that after the circuit breaker is opened, the driving gear 305 continues to rotate to the first initial position to drive the first switch member 9B to disconnect the opening circuit and connect the closing circuit. Further, as Fig.21 As shown, the manual operation component in this embodiment is a button mechanism 2, and the circuit breaker is a plug-in circuit breaker.

[0147] As another embodiment, the manual operating component may also be a handle, and the circuit breaker may be an ordinary small circuit breaker. When the circuit breaker is not provided with a manual operating component and only has an electric mechanism 3 for automatic closing, the electric mechanism 3 drives the circuit breaker to automatically open and close through the operating mechanism; when the circuit breaker also has an electric mechanism 3, the electric mechanism 3 may directly drive the circuit breaker to automatically open and close through the operating mechanism, or may realize automatic opening and closing by driving the manual operating component.

[0148] Specifically, Fig.23a As shown, the circuit breaker is in the open state, the first switch element 9B connects the closing circuit and disconnects the opening circuit. When the circuit breaker is automatically closed, the closing voltage signal outside or inside the circuit breaker (the power terminal E0 is connected to the positive pole, and the power terminal E1 is connected to the negative pole) is loaded on the first switch element 9B and the two ends of the closing circuit (the current flows through the power terminal E0, the common contact b3, the normally closed contact b0, the diode D3, the motor 301, the diode D2, and the power terminal E1 in sequence), the motor 301 rotates forward and drives the driving gear 305 to rotate from the first initial position to the middle position, and the circuit breaker completes the closing. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 presses the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the closing circuit and connects the opening circuit (as shown in FIG. Figure 23bAs shown), at this time, the closing voltage signal cannot pass through the opening circuit (due to the unidirectional conduction function of diodes D1 and D4), so the motor 301 stops rotating; Figure 23b As shown, the circuit breaker is in the closed state, the first switch element 9B connects the opening circuit and disconnects the closing circuit at the same time. When the circuit breaker is automatically opened, the opening voltage signal outside or inside the circuit breaker (the power terminal E0 is connected to the negative pole, and the power terminal E1 is connected to the positive pole) is loaded on the first switch element 9B and the opening circuit (the current flows through the power terminal E1, the diode D4, the motor 301, the diode D1, the normally open contact b1, the common contact b0, and the power terminal E0 in sequence), the motor 301 rotates forward and drives the driving gear 305 to rotate from the middle position to the first initial position, the circuit breaker completes the opening, and at the same time, the switch driving platform 305-4 of the third driving gear 305-3 releases the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the opening circuit and connects the closing circuit (as shown in FIG. Fig.23a As shown in FIG. 1 ), the opening voltage signal cannot pass through the closing circuit (due to the single-phase conduction function of diodes D2 and D3), so the motor 301 stops rotating. Therefore, when the circuit breaker of the present invention needs to be closed / opened, it is only necessary to switch the current direction or voltage direction of the working power supply of the motor 301. It is simple and convenient to control the power supply of the motor 301, and no chip control is required, so as to avoid interference and influence of the chip under specific environment.

[0149] Further, this embodiment can be combined with the third embodiment of the present invention, the circuit breaker also includes a manual-automatic switching device arranged in the circuit breaker housing 1, the manual-automatic switching device includes a switching operating element 7a and a switching switch element 9A, the switching operating element 7a is arranged on the circuit breaker operation interface 1i, is located on one side of the button assembly hole and is movably connected to the circuit breaker housing 1, the switching switch element 9A is connected in series in the closing circuit and the opening circuit, and when the switching switch element 9A is disconnected, it is a manual working mode, the motor 301 cannot be powered, and cannot be automatically opened and closed, and when the switching switch element 9A is closed, it is an automatic working mode, and manual opening and closing and automatic opening and closing are possible at the same time, and the switching switch element 9A is a micro switch.

[0150] Preferably, Fig.21 , 25a 25b is the sixth embodiment of the circuit breaker of the present invention, which is the second embodiment of the second type of circuit breaker.

[0151] like Fig.25a and 25bAs shown, the difference between the circuit breaker of this embodiment and the fifth embodiment is that: the closing circuit includes a power terminal E1, the normally closed contact b0 is connected to the positive terminal of the motor 301, and the negative terminal of the motor 301 is connected to the power terminal E1; the opening circuit includes a power terminal E2, the normally open contact b1 is connected to the negative terminal of the motor 301, and the positive terminal of the motor 301 is connected to the power terminal E2; the common contact b0 is connected to the power terminal E0.

[0152] Specifically, Fig.25a As shown, the circuit breaker is in the open state, the first switch element 9B is connected to the closing circuit, and the closing voltage signal (the power terminal E0 is connected to the positive pole, and the power terminal E1 is connected to the negative pole) is loaded on the first switch element 9B and the two ends of the closing circuit (the current flows through the power terminal E0, the common contact b3, the normally closed contact b0, the motor 301, and the power terminal E1 in sequence), the motor 301 rotates forward and drives the driving gear member 305 to rotate from the first initial position to the middle position, and the circuit breaker is closed. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 presses the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the closing circuit and connects the opening circuit (as shown in FIG. Fig.25b As shown), the closing voltage signal cannot pass through the opening circuit (because the power terminal E2 is not conducting, and even if it is conducting, the motor 301 will be short-circuited), so the motor 301 stops rotating; Fig.25b As shown, the circuit breaker is in the closed state, the first switch element 9B is connected to the opening circuit, and the opening voltage signal (power terminal E0 is connected to the negative pole, and the power terminal E2 is connected to the positive pole) is loaded on the first switch element 9B and the two ends of the opening circuit (the current flows through the power terminal E2, the motor 301, the normally open contact b1, the common contact b3, and the power terminal E0 in sequence), the motor 301 rotates forward and drives the driving gear member 305 to rotate from the middle position to the first initial position, and the circuit breaker completes the opening. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 releases the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the opening circuit and connects the closing circuit (as shown in FIG. Fig.25a As shown), the opening voltage signal cannot pass through the closing circuit (because the power terminal E1 is not conducting, and even if the power terminal E1 is conducting, the motor 301 will be short-circuited), so the motor 301 stops rotating.

[0153] Preferably, Fig.21 , 22 24a-24d show the seventh embodiment of the circuit breaker of the present invention, which is the first embodiment of the third type of circuit breaker.

[0154] like Fig.21 , 22As shown in 24a-24d, the difference between the circuit breaker of this embodiment and the fifth embodiment is that: the circuit breaker of the present invention also includes a manual operation component, a closing auxiliary circuit and an opening auxiliary circuit; the switch device also includes a second switch 9C driven and matched with the manual operation component or the operating mechanism 5, and the output ends of the second switch 9C are respectively connected to the closing auxiliary circuit and the opening auxiliary circuit, for connecting the closing auxiliary circuit and disconnecting the opening auxiliary circuit at the same time, or disconnecting the closing auxiliary circuit and connecting the opening auxiliary circuit at the same time; the manual operation component is connected to the operating mechanism 5; the closing auxiliary circuit and the opening auxiliary circuit are respectively connected to the two input ends of the motor 301; the input end of the second switch 9C is connected to the input end of the first switch 9B.

[0155] like Fig.24a As shown, when the circuit breaker is in the open state, the first switch 9B is connected to the closing circuit and the second switch 9C is connected to the closing auxiliary circuit, a closing voltage signal is loaded at both ends of the first switch 9B and the closing circuit during automatic closing. After the electric mechanism 3 drives the circuit breaker to close through the operating mechanism 5, as shown in FIG. Figure 24b As shown, the trigger gear drives the first switch element 9B to disconnect the closing circuit and connect the opening circuit. When closing, the manual operating component and the operating mechanism 5 move to the closing position accordingly. At the same time, the action of the manual operating component or the operating mechanism 5 when closing drives the second switch element 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit.

[0156] like Figure 24b As shown, when the circuit breaker is in the closed state, the first switch 9B is connected to the opening circuit and the second switch 9C is connected to the opening auxiliary circuit, when the circuit breaker is automatically opened, a voltage signal for opening is applied to both ends of the first switch 9B and the opening circuit. After the electric mechanism 3 drives the circuit breaker to open through the operating mechanism 5, as shown in FIG. Fig.24a As shown, the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. When opening, the manual operating component and the operating mechanism 5 move to the opening position accordingly. At the same time, the action of the manual operating component or the operating mechanism 5 when opening drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit.

[0157] When the circuit breaker is in the closed state, the first switch 9B connects the opening circuit and the second switch 9C connects the opening auxiliary circuit. The circuit breaker is driven to open by the manual operating component. The action of the manual operating component or the operating mechanism 5 when opening drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit, and enters the state as shown in FIG. Fig.24c At this time, the automatic closing is performed, and the closing voltage signal is loaded at both ends of the first switch 9B and the opening circuit. The motor 301 drives the trigger gear to rotate, and the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit, and enters the state shown in FIG. Fig.24aThe state shown in FIG. 1 is then entered by the electric mechanism 3 driving the circuit breaker to close through the operating mechanism 5, and the trigger gear drives the first switch 9B to disconnect the closing circuit and connect the opening circuit. At the same time, the manual operating component or the operating mechanism 5 drives the second switch 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit, and enters the state shown in FIG. Figure 24b Status shown.

[0158] When the circuit breaker is in the open state, the first switch 9B connects the closing circuit and the second switch 9C connects the closing auxiliary circuit. After the circuit breaker is closed by the manual operating component, the action of the manual operating component or the operating mechanism 5 when closing drives the second switch 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit, and enters the state as shown in FIG. Fig.24d The state shown; the opening voltage signal is loaded at both ends of the first switch element 9B and the closing circuit, the motor 301 drives the trigger gear to rotate, and the trigger gear drives the first switch element 9B to disconnect the closing circuit and connect the opening circuit, entering the state shown in FIG. Figure 24b Then the electric mechanism 3 drives the circuit breaker to open through the operating mechanism 5, and the trigger gear drives the first switch 9B to disconnect the opening circuit and connect the closing circuit. At the same time, the manual operating component or the operating mechanism 5 drives the second switch 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit, and enters the state shown in FIG. Fig.24a Status shown.

[0159] In this embodiment, the manual operation component is a button mechanism 2, and the circuit breaker is a plug-in circuit breaker. As other embodiments, the manual operation component can also be a handle, and the circuit breaker can be an ordinary small circuit breaker.

[0160] The first switch element 9B includes a common contact b3, a normally closed contact b0 and a normally open contact b1, wherein the normally closed contact b0 and the normally open contact b1 are respectively connected to the closing circuit and the opening circuit, or the normally closed contact b0 and the normally open contact b1 are respectively connected to the opening circuit and the closing circuit;

[0161] The second switch element 9C includes a common contact c3, a normally closed contact c0 and a normally open contact c1, wherein the normally closed contact c0 and the normally open contact c1 are respectively connected to the closing auxiliary circuit and the opening auxiliary circuit, or the normally closed contact c0 and the normally open contact c1 are respectively connected to the opening auxiliary circuit and the closing auxiliary circuit. Figures 24a-24d In the specific embodiment shown, the normally closed contact c0 is connected to the closing auxiliary circuit, the normally open contact c1 is connected to the opening auxiliary circuit, and the common contact c3 is connected to the common contact b3; when the common contact c3 is connected to the normally closed contact c0, the closing auxiliary circuit is connected, and when the common contact c3 is connected to the normally open contact, the opening auxiliary circuit is connected.

[0162] Preferably, Figures 24a-24dAs shown, the motor 301 is a DC motor, the closing circuit includes a diode D3 and a power terminal E1, the normally closed contact b0 is connected to the anode of the diode D3, the cathode of the diode D3 is connected to the positive terminal of the motor 301, and the negative terminal of the motor 301 is connected to the power terminal E1; the opening circuit includes a diode D1 and a power terminal E2, the normally open contact b1 is connected to the cathode of the diode D1, the cathode of the diode D1 is connected to the negative terminal of the motor 301, and the positive terminal of the motor 301 is connected to the power terminal E2; the closing auxiliary circuit includes a diode D6, the normally closed contact c0 is connected to the anode of the diode D6, and the cathode of the diode D6 is connected to the positive terminal; the opening auxiliary circuit includes a diode D5, the normally open contact c1 is connected to the cathode of the diode D5, and the anode of the diode D5 is connected to the negative terminal; the common contact b3 is connected to the common contact c3.

[0163] Preferably, Fig. 22 As shown, the second switch member 9C is arranged on one side of the connecting member 204 of the button mechanism 2, and is driven in cooperation with the connecting member 204. Fig. 22 As shown, the second switch element 9C is a micro switch connected to the circuit board 111.

[0164] Specifically, Fig.24a As shown, the circuit breaker is in the open state, the first switch 9B is connected to the closing circuit and the second switch 9C is connected to the closing auxiliary circuit, and the closing voltage signal (the power terminal E0 is connected to the positive pole and the power terminal E1 is connected to the negative pole) is loaded on the first switch 9B and the two ends of the closing circuit (the current flows into the motor 301 through the power terminal E0, the common contact b3, the normally closed contact b0, and the diode D3 connected in sequence, and the power terminal E0, the common contact c3, and the normally closed contact c0 connected in sequence, and flows out of the motor 301 through the diode D2 and the power terminal E1 connected in sequence), and the motor 301 is positive. The drive gear 305 is turned and driven to rotate from the first initial position to the middle position, and the circuit breaker is closed. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 presses the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the closing circuit and connects the opening circuit; at the same time, when the circuit breaker is closed, the transmission member 501 of the operating mechanism 5 drives the connecting member 204 to move through the second connecting rod 203, and the connecting member 204 presses the second driving rod of the second switch element 9C, so that the second switch element 9C disconnects the closing auxiliary circuit and connects the opening auxiliary circuit, and enters the state as shown in FIG. Figure 24b Status shown.

[0165] like Figure 24bAs shown, the circuit breaker is in the closed state, the first switch 9B is connected to the opening circuit and the second switch 9C is connected to the opening auxiliary circuit, and the opening voltage signal (the power terminal E0 is connected to the negative pole and the power terminal E1 is connected to the positive pole) is loaded on the first switch 9B and the two ends of the closing circuit (the current flows into the motor 301 through the power terminal E1 and the diode D4 connected in sequence, and flows out of the motor 301 through the diode D1, the normally open contact b1, the common contact b3, the power terminal E0 connected in sequence, and the diode D5, the normally open contact c1, the normally closed contact c3, the power terminal E0 connected in sequence), and the motor 3 01 rotates forward and drives the driving gear member 305 to rotate from the middle position to the first initial position, and the circuit breaker completes the opening. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 releases the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the opening circuit and connects the closing circuit; at the same time, when the circuit breaker completes the opening, the transmission member 501 of the operating mechanism 5 drives the connecting member 204 to move through the second connecting rod 203, and the connecting member 204 releases the second driving rod of the second switch element 9C, so that the second switch element 9C disconnects the opening auxiliary circuit and connects the closing auxiliary circuit, and enters the state as shown in FIG. Fig.24a Status shown.

[0166] Reference Figure 24b When the circuit breaker is in the closed state, the first switch 9B connects the opening circuit and the second switch 9C connects the opening auxiliary circuit. After the circuit breaker is opened by the manual operation component, the second switch 9C disconnects the opening auxiliary circuit and connects the closing auxiliary circuit, and enters the state as shown in FIG. Fig.24c In the state shown, the closing voltage signal (power terminal E0 is connected to the positive pole, and power terminal E1 is connected to the negative pole) is loaded on the first switch element 9B and the two ends of the closing circuit (the current flows into the motor 301 through the power terminal E0, common contact c3, normally closed contact c0, and diode D6 connected in sequence, and flows out of the motor 301 through the diode D2 and power terminal E1 connected in sequence), the motor 301 rotates forward and drives the driving gear element 305 to rotate from the middle position to the first initial position, and at the same time, the switch driving platform 305-4 of the third driving gear 305-3 releases the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the opening circuit and connects the closing circuit, and enters the state shown in FIG. Fig.24a The motor 301 continues to rotate forward, and the driving gear member 305 rotates from the first initial position to the middle position. After the circuit breaker is closed, the third driving gear 305 of the driving gear member 305 drives the first switch member 9B to disconnect the closing circuit and connect the opening circuit. At the same time, when the circuit breaker is closed, the transmission member 501 of the operating mechanism 5 drives the connecting member 204 to move through the second connecting rod 203, and the connecting member 204 drives the second switch member 9C to disconnect the closing auxiliary circuit and connect the opening auxiliary circuit, and enter the state shown in FIG. Figure 24b Status shown.

[0167] Reference Fig.24a When the circuit breaker is in the open state, the first switch 9B connects the closing circuit and the second switch 9C connects the closing auxiliary circuit. After the circuit breaker is closed by the manual operation component, the second switch 9C disconnects the closing auxiliary circuit and connects the opening auxiliary circuit, entering the state shown in Figure 24. The opening voltage signal (the power terminal E0 is connected to the negative pole, and the power terminal E1 is connected to the positive pole) is loaded on the first switch 9B and the closing circuit (the current flows into the motor 301 through the power terminal E1 and the diode D4 connected in sequence, and flows out of the motor 301 through the diode D5, the normally open contact c1, the common contact c3, and the power terminal E1 connected in sequence). The motor 301 rotates forward and drives the driving gear 305 to rotate from the first initial position to the middle position. At the same time, the switch driving platform 305-4 of the third driving gear 305-3 releases the first driving rod of the first switch element 9B, so that the first switch element 9B disconnects the closing circuit and connects the opening circuit, entering the state shown in Figure 24. Figure 24b The motor 301 continues to rotate forward, and the driving gear member 305 rotates from the middle position to the first initial position. After the circuit breaker is opened, the third driving gear 305 of the driving gear member 305 drives the first switch member 9B to disconnect the opening circuit and connect the closing circuit. At the same time, when the circuit breaker is opened, the transmission member 501 of the operating mechanism 5 drives the connecting member 204 to move through the second connecting rod 203, and the connecting member 204 drives the second switch member 9C to disconnect the opening auxiliary circuit and connect the closing auxiliary circuit, and enters the state shown in FIG. Fig.24a Status shown.

[0168] Preferably, Fig.21 , 22 , 26a-26d show the eighth embodiment of the circuit breaker of the present invention, which is the second embodiment of the third type of circuit breaker.

[0169] like Figures 26a-26d As shown, the difference between the circuit breaker of this embodiment and the seventh embodiment is that: the closing circuit includes a diode D3 and a power terminal E1, the normally closed contact b0 is connected to the anode of the diode D3, the cathode of the diode D3 is connected to the positive terminal of the motor 301, and the negative terminal of the motor 301 is connected to the power terminal E1; the opening circuit includes a diode D1 and a power terminal E2, the normally open contact b1 is connected to the cathode of the diode D1, the cathode of the diode D1 is connected to the negative terminal of the motor 301, and the positive terminal of the motor 301 is connected to the power terminal E2;

[0170] The closing auxiliary circuit includes a diode D6, the normally closed contact c0 is connected to the anode of the diode D6, and the cathode of the diode D6 is connected to the positive terminal; the opening auxiliary circuit includes a diode D5, the normally open contact c1 is connected to the cathode of the diode D5, and the anode of the diode D5 is connected to the negative terminal.

[0171] The working principle of this embodiment is the same as that of the circuit breaker of the seventh embodiment, except that the structures of the closing circuit and the opening circuit are changed, so the loading positions of the closing voltage signal and the opening voltage signal and the current path are changed, which can be deduced by those skilled in the art. Therefore, the working principle of the circuit breaker of this embodiment will not be described in detail here.

[0172] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A circuit breaker, comprising a circuit breaker housing (1), and a button mechanism (2), an electric mechanism (3), and an operating mechanism (5) arranged in the circuit breaker housing (1); the button mechanism (2) drives the circuit breaker to close / open through the operating mechanism (5); the electric mechanism (3) drives the circuit breaker to close / open through the button mechanism (2) and / or the operating mechanism (5); the circuit breaker housing (1) comprises a circuit breaker operating interface (1i) arranged at one end thereof, and a button assembly hole and an outlet terminal (881) arranged on the circuit breaker operating interface (1i); one end of the button mechanism (2) is inserted into the button assembly hole, and an inlet terminal (880) is arranged at the other end of the circuit breaker housing (1); characterized in that: The circuit breaker further comprises a manual-automatic switching device arranged in the circuit breaker housing (1), the manual-automatic switching device comprising a switching operating element (7a) and a switching switch element (9A), the switching operating element (7a) drivingly cooperates with the switching switch element (9A), and the switching switch element (9A) is used to switch the circuit breaker between a manual working mode and an automatic working mode; the switching operating element (7a) is arranged on the circuit breaker operating interface (1i) and is located on one side of the button assembly hole; The electric mechanism (3) is arranged between the outlet terminal (881) and the operating mechanism (5), and the electric mechanism (3) and the outlet terminal (881) are arranged on the same side of the button mechanism (2); The electric mechanism (3) comprises a motor (301) and a driving gear member (305) and a driven gear (306) respectively pivotally arranged on the circuit breaker housing (1), the driving gear member (305) drivingly cooperating with the driven gear (306); the operating mechanism (5) comprises a transmission member (501) pivotally arranged on the circuit breaker housing (1) and drivingly connected to the button mechanism (2), the driven gear (306) and the transmission member (501) being coaxially arranged and drivingly cooperating; the driving gear member (305) drivingly cooperating with the driven gear (306), the driven gear (306) driving the transmission member (501) to rotate so as to close the circuit breaker, the driving gear member (305) drivingly cooperating with the button mechanism (2), the button mechanism (2) driving the transmission member (501) to rotate in the opposite direction so as to open the circuit breaker.

2. The circuit breaker according to claim 1, characterized in that: The manual-automatic switching device further comprises a switching transmission element (8a), and the switching operation element (7a) drives the switching switch element (9A) to operate via the switching transmission element (8a); The switching operating element (7a) is a knob rotatably arranged on the circuit breaker housing (1), comprising a knob connecting portion (70a) and a knob operating end (71a) and a knob driving portion (72a) respectively arranged on both sides of the knob connecting portion (70a); one end of the switching transmission element (8a) is drivingly connected to the knob driving portion (72a), and the other end is drivingly matched with the switching switch element (9A); the knob is turned to drive the switching transmission element (8a) to move toward or away from the direction where the switching switch element (9A) is located, thereby triggering the switching switch element (9A).

3. The circuit breaker according to claim 2, characterized in that: The knob driving portion (72a) comprises a knob driving inclined surface (720a) drivingly matched with the switching transmission element (8a).

4. The circuit breaker according to claim 2, characterized in that: The switching transmission element (8a) is a rod-shaped member, comprising a transmission element driven part (80a), a transmission element spring limiting platform (82a) and a transmission element transmission part (81a) connected in sequence, the transmission element driven part (80a) is drivingly matched with the knob driving part (72a), and the transmission element transmission part (81a) is drivingly matched with the switching switch element (9A); the manual-automatic switching device also comprises a transmission element reset spring (10), the transmission element reset spring (10) is sleeved on the transmission element transmission part (81a), one end of the transmission element reset spring is limitingly matched with the transmission element spring limiting platform (82a), and the other end is limitingly matched with the circuit breaker housing (1).

5. The circuit breaker according to claim 4, characterized in that: The circuit breaker housing (1) also includes a transmission element assembly groove arranged on one side of the button mechanism (2), the transmission element assembly groove including an assembly groove upper section (103-1), an assembly groove lower section (103-2) and an assembly groove tail section which are connected in sequence, the width of the assembly groove lower section (103-2) is greater than the width of the assembly groove upper section (103-1) and the width of the assembly groove lower section (103-2) is greater than the width of the assembly groove tail section, the connection between the assembly groove lower section (103-2) and the assembly groove upper section (103-1) forms a first step structure, and the connection between the assembly groove lower section (103-2) and the assembly groove tail section forms a second step structure. The second step structure is formed, the driven part (80a) of the transmission element is arranged in the middle of the upper section (103-1) of the assembly groove, the transmission part (81a) of the transmission element is arranged in the middle of the lower section (103-2) of the assembly groove, the transmission element spring limit platform (82a) is limited and matched with the first step structure, the transmission element return spring (10) is arranged in the middle of the lower section (103-2) of the assembly groove, one end is limited and matched with the transmission element spring limit platform (82a), and the other end is limited and matched with the second step structure, and the free end of the transmission part (81a) of the transmission element passes through the tail section of the assembly groove and is limited and matched with the switching switch element (9A).

6. The circuit breaker according to claim 2, characterized in that: The switching element (9A) is connected in series in the power supply circuit of the electric mechanism (3).

7. The circuit breaker according to claim 1, characterized in that: The outlet terminal (881) is a plug-in type wiring terminal, and the circuit breaker housing (1) further comprises an outlet hole (1o) and a wire removal hole (1d) of the outlet terminal (881) arranged on the circuit breaker operation interface (1i), the outlet hole (1o) and the wire removal hole (1d) are used in a one-to-one manner, the outlet hole (1o), the wire removal hole (1d) and the switching operating element (7a) are all located on the same side of the button assembly hole, and the switching operating element (7a) is located between a wire removal hole (1d) and the button assembly hole.

8. The circuit breaker according to claim 1, characterized in that: The circuit breaker further comprises a switch device, a closing circuit and an opening circuit; the switch device comprises a first switch component (9B) drivingly matched with a driving gear component (305); the output end of the first switch component (9B) is respectively connected to the closing circuit and the opening circuit; the motor (301) is respectively connected in series to the closing circuit and the opening circuit; and the switching switch element (9A) is connected in series to the closing circuit and the opening circuit; When the circuit breaker is in an open state and the first switch component (9B) connects the closing circuit and disconnects the opening circuit, a closing voltage signal is applied to both ends of the closing circuit. After the driving gear component (305) drives the transmission component (501) through the driven gear (306) to close the circuit breaker, the driving gear component (305) continues to rotate to drive the first switch component (9B) to disconnect the closing circuit and connect the opening circuit; When the circuit breaker is in a closed state and the first switch component (9B) connects the closing circuit and disconnects the opening circuit, an opening voltage signal is loaded at both ends of the first switch component (9B) and the opening circuit. After the driving gear component (305) rotates and drives the button mechanism (2) to operate to open the circuit breaker, the driving gear component (305) continues to rotate to drive the first switch component (9B) to disconnect the opening circuit and connect the closing circuit.

9. The circuit breaker according to claim 1, characterized in that: The button mechanism (2) comprises a button member (201), a first connecting rod (202), a connecting member (204) and a second connecting rod (203) which are connected in sequence; the second connecting rod (230) is drivingly connected to an operating mechanism (5); the button member (201) and the connecting member (204) are slidably arranged on a circuit breaker housing (1); one end of the button member (201) passes through a button assembly hole and protrudes outside the circuit breaker housing (1); pressing / pulling the button member (201) drives the operating mechanism (5) to operate, thereby closing / opening the circuit breaker; the driving gear member (305) and the connecting member (204) are drivingly matched to open the circuit breaker; the circuit breaker further comprises a first reset spring (205) for driving the connecting member (204) to reset.

10. The circuit breaker according to claim 9, characterized in that: The circuit breaker further comprises a locking mechanism (4), one end of the locking mechanism (4) being a locking mechanism actuated end protruding outside the circuit breaker housing (1), and the other end being a locking mechanism mating end mating with the button member (201) or the first connecting rod (202); the first return spring (205) of the locking mechanism (4) and the button mechanism (2) are both located on the same side of the button member (201) and the connecting member (204).

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