Breaker opening and closing remote control mechanism

Abstract

The utility model discloses a remote control mechanism for opening and closing of a circuit breaker. The remote control mechanism comprises a circuit breaker shell, a motor, a circuit board and a microswitch, the circuit breaker shell is provided with a limiting pin and a limiting hole; the motor is fixedly arranged on the circuit breaker shell; the circuit board is fixedly arranged on the left side part of the circuit breaker shell; the microswitch is fixedly arranged on the circuit board; the circuit board is connected with the motor and the microswitch; the circuit board controls the rotation of the motor by receiving a signal of the microswitch; the device further comprises a first unlocking device, a second unlocking device and a connecting rod. The rotation of the motor is controlled to drive the first unlocking device, the second unlocking device and the connecting rod to jointly cooperate to realize switching of the opening and closing states of the circuit breaker; by adopting the breaker opening and closing remote control mechanism of the utility model, remote control of breaker opening and closing is realized, manpower waste is saved to a certain extent, and work efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of low-voltage electrical appliance assembly, and particularly relates to a remote control mechanism for opening and closing a circuit breaker. Background Art

[0002] Traditional circuit breakers can no longer meet these requirements. In the continuous research and development, circuit breakers have reached a new level not only in miniaturization, intelligence, reliability, etc., but also many new designs have emerged in the structure. For example, it can be inserted and used conveniently like an ordinary electrical plug, the circuit breaker can be conveniently inserted into or withdrawn from the circuit, and it can be locked in a stable working state at the installation position. At the same time, the wiring direction of this circuit breaker and the wiring direction of the external wire are in the same plane, which is the so-called plug-in circuit breaker. This kind of circuit breaker can not only provide various safety protection measures for the power line, but also occupies a small space and can meet various intelligent usage requirements.

[0003] The opening and closing states of the existing circuit breakers usually need to be manually opened and closed. Even if there are some automatic opening and closing mechanisms, due to the inaccurate setting of the position and quantity of the micro switches, the conversion of the opening and closing states of the circuit breaker is not timely enough, resulting in the need for manual opening and closing assistance in most environments. This opening and closing method wastes manpower to a certain extent and shortens the working efficiency. Summary of the Utility Model

[0004] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a remote control mechanism for opening and closing a circuit breaker. Through the combined cooperation of a circuit board, a micro switch, a motor, a first unlocking device, a second unlocking device and a connecting rod, the remote opening and closing function is realized; especially by accurately setting the position and quantity of the micro switches, the contact signal can be received in time, and the circuit board controls the rotation of the motor, driving the first unlocking device, the second unlocking device and the connecting rod to realize the opening and closing conversion of the circuit breaker. By setting this control mechanism, the remote control of the opening and closing of the circuit breaker is realized, saving manpower waste to a certain extent and greatly improving the working efficiency.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A remote control mechanism for opening and closing a circuit breaker includes a circuit breaker housing, a motor, a circuit board and a micro switch; a limit pin and a limit hole are arranged on the circuit breaker housing; the motor is fixedly installed on the circuit breaker housing; the circuit board is fixedly arranged on the left part of the circuit breaker housing; the micro switch is fixedly arranged on the circuit board; the circuit board is connected to the motor and the micro switch; the circuit board controls the rotation of the motor by receiving the signal of the micro switch.

[0007] It also includes a first unlocking device, a second unlocking device and a connecting rod; the first unlocking device is rotatably mounted on the right circuit breaker housing through a first limiting pin;

[0008] The second unlocking device is rotatably mounted on the circuit breaker housing and is located on the left side of the first unlocking device; the second unlocking device can rotate under the drive of the motor, and can drive the first unlocking device to rotate after rotating a certain angle; the motor is located below the second unlocking device; the output end of the motor is fixedly connected to the second unlocking device; the connecting rod is rotatably mounted on the circuit breaker housing through a second limit pin, and the other end is fixedly connected to the operating mechanism (the other end is connected to the operating mechanism through a rod body, and the rod body is connected to the operating mechanism through a preset limit hole on the circuit breaker housing); the connecting rod can swing under the drive of the second unlocking device, thereby driving the circuit breaker operating mechanism to open and close;

[0009] There are three micro switches, including a first micro switch, a second micro switch and a third micro switch; the first micro switch is located on the left side above the first unlocking device, and the second micro switch is located on the right side of the first micro switch; the first micro switch and the second micro switch are used to receive the motion signal of the first unlocking device; the third micro switch is located above the second unlocking device; the third micro switch is used to receive the motion signal of the second unlocking device.

[0010] As a preferred embodiment of the utility model, the first unlocking device includes a handle and a first sector gear; the handle is fixedly connected to the first sector gear; the first sector gear is rotatably mounted on the circuit breaker housing, and a protrusion is provided on the first sector gear; the protrusion is located above the sector teeth of the first sector gear.

[0011] As a further preferred embodiment of the present invention, the second unlocking device includes three parts: a changing base, a second sector gear and a block; the changing base is fixedly mounted on the circuit breaker housing; a changing mechanism is arranged inside the changing base; the second sector gear and the block are coaxially mounted on the changing base and are transmission connected to the changing mechanism, and both can rotate with the changing mechanism; the second sector gear of the second unlocking device can mesh with the first sector gear of the first unlocking device through rotation (and drive the second unlocking device 7 to rotate).

[0012] As a further preferred embodiment of the present invention, the second sector gear is integrally stacked with the stopper

[0013] As a further preferred embodiment of the present invention, the direction-changing mechanism is a worm gear combination, wherein the worm gear is linked with the motor shaft, and the wheel shaft of the turbine is coaxially connected with the second sector gear and the stopper.

[0014] As a further preference of the present utility model, the connecting rod cooperates with the stopper of the second unlocking device; the connecting rod swings under the rotation of the stopper of the second unlocking device.

[0015] As a further preference of the present utility model, the first microswitch and the second microswitch receive the motion signal of the first unlocking device by contacting the protrusion on the first unlocking device; the third microswitch receives the motion signal of the second unlocking device by contacting the stopper on the second unlocking device.

[0016] As a further preference of the present utility model, the motor and the circuit board are electrically connected by a wire.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the common cooperation of the circuit board, microswitch, motor, first unlocking device, second unlocking device and connecting rod, the remote opening and closing function is realized; especially by accurately setting the position and quantity of the microswitch, the contact signal can be received in time, and the circuit board controls the rotation of the motor, driving the first unlocking device, the second unlocking device and the connecting rod to realize the opening and closing conversion of the circuit breaker. By setting this control mechanism, the remote control of the opening and closing of the circuit breaker is realized, saving manpower waste to a certain extent and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model in the closing state;

[0019] Figure 2 is a schematic structural diagram of the present utility model in the tripping state;

[0020] Figure 3 is a schematic structural diagram of the present utility model in the opening state.

[0021] As shown in the figure: 1 - circuit breaker housing, 2 - motor, 3 - circuit board, 4 - microswitch, 410 - first microswitch, 411 - second microswitch, 412 - third microswitch, 5 - limit hole, 6 - first unlocking device, 610 - handle, 611 - first sector gear, 6111 - protrusion, 7 - second unlocking device, 710 - direction-changing base, 711 - second sector gear, 712 - stopper, 8 - connecting rod, 9 - first limit pin, 10 - second limit pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0023] As Figures 1 - 3 shown, a remote control mechanism for opening and closing a circuit breaker includes a circuit breaker housing 1, a motor 2, a circuit board 3, and a micro switch 4;

[0024] A limit pin and a limit hole 5 are provided on the circuit breaker housing 1;

[0025] The motor 2 is fixedly installed on the circuit breaker housing 1; the circuit board 3 is fixedly arranged on the left side part of the circuit breaker housing 1;

[0026] The micro switch 4 is fixedly arranged on the circuit board 3; the circuit board 3 is connected to the motor 2 and the micro switch 4; the circuit board 3 controls the rotation of the motor 3 by receiving the signal of the micro switch 4;

[0027] It further includes a first unlocking device 6, a second unlocking device 7, and a connecting rod 8;

[0028] The first unlocking device 6 is rotatably installed on the right circuit breaker housing 1 through a first limit pin 5;

[0029] The second unlocking device 7 is rotatably installed on the circuit breaker housing 1 and is located on the left side of the first unlocking device 6;

[0030] The second unlocking device 7 can be rotated driven by the motor 2 and can drive the first unlocking device 6 to rotate after rotating a certain angle;

[0031] The motor 2 is located below the second unlocking device 7; the output end of the motor 2 is fixedly connected to the second unlocking device 7;

[0032] The connecting rod 8 is rotatably installed on the circuit breaker housing 1 through a second limit pin 10, and the other end is fixedly connected to the operating mechanism through a limit (the other end is connected to the operating mechanism through a rod body, and the rod body passes through a preset limit hole 5 on the circuit breaker housing 1 and is connected to the operating mechanism);

[0033] The connecting rod 8 can swing driven by the second unlocking device 6, thereby driving the circuit breaker operating mechanism to open and close;

[0034] There are three micro switches 4, including a first micro switch 410, a second micro switch 411, and a third micro switch 412;

[0035] The first micro switch 410 is located on the left side above the first unlocking device 6, and the second micro switch 411 is located on the right side of the first micro switch 410;

[0036] The first micro switch 410 and the second micro switch 411 are used to receive the motion signal of the first unlocking device 6;

[0037] The third micro switch 412 is located above the second unlocking device 7 ; the third micro switch 412 is used to receive a motion signal of the second unlocking device 7 .

[0038] Through the signal feedback of the micro switch 4 to the first unlocking device 6 and the second unlocking device 7, the control unit on the circuit board 3 can timely and effectively monitor the opening and closing status of the circuit breaker, thereby realizing remote control of the opening and closing of the circuit breaker.

[0039] Preferably, the first unlocking device 6 includes two parts: a handle 610 and a first sector gear 611; the handle 610 is fixedly connected to the first sector gear 611; the first sector gear 611 is rotatably mounted on the circuit breaker housing 1; a protrusion 6111 is provided on the first sector gear 611; the protrusion 6111 is located above the sector teeth of the first sector gear 611.

[0040] Preferably, the second unlocking device 7 includes three parts: a changing base 710, a second sector gear 711 and a stop block 712; the changing base 710 is fixedly mounted on the circuit breaker housing 1; a changing mechanism is arranged inside the changing base 710; the second sector gear 711 and the stop block 712 are coaxially mounted on the changing base 710 and are transmission connected to the changing mechanism, and both can rotate with the changing mechanism; the second sector gear 711 of the second unlocking device 7 can mesh with the first sector gear 611 of the first unlocking device 6 through rotation.

[0041] Preferably, the second sector gear 711 and the stopper 712 are stacked together into one piece.

[0042] Preferably, the direction-changing mechanism is a worm gear combination.

[0043] Preferably, the connecting rod 8 cooperates with the stopper 712 of the second unlocking device 7 ; the connecting rod 8 swings under the rotation of the stopper 712 of the second unlocking device 7 .

[0044] Preferably, the first microswitch 410 and the second microswitch 411 receive the motion signal of the first unlocking device 6 by contacting the protrusion 6111 on the first unlocking device 6, and feedback it to the control unit on the circuit board 3 to realize the opening and closing conversion of the circuit breaker; the third microswitch 412 receives the motion signal of the second unlocking device 7 by contacting the stopper 712 on the second unlocking device 7, and feedbacks it to the control unit on the circuit board 3, thereby controlling the rotation of the motor 2, driving the second sector gear 711 to rotate, and correspondingly driving the first unlocking device 6 and the connecting rod 8, so as to realize the change of the opening and closing state of the circuit breaker.

[0045] Preferably, the motor 2 is electrically connected to the circuit board 3 through a wire.

[0046] In this embodiment, the model of the motor 2 is: GM1218-TFC-N20VA-075240-800-6.5D, which is produced by Guangdong Tianfu Motor Technology Co., Ltd.; the motor 2 is located below the steering base; the output end of the motor 2 is inserted into the steering base and fixedly connected to the steering mechanism.

[0047] The working principle of the present utility model is as follows:

[0048] First, by comprehensively judging the signal feedback from the first microswitch 410 or the second microswitch 411 to the protrusion 6111 in the first unlocking device 6, it is judged whether the first unlocking device 6 is in the opening or closing state; when the first unlocking device 6 is in the closing state, the protrusion 6111 on the first unlocking device 6 contacts the probe of the second microswitch 411 and feeds the signal back to the control unit on the circuit board 3; at this time, the stopper 712 in the second unlocking device 7 contacts the probe of the third microswitch 412;

[0049] Then, the circuit board 3 controls the motor 2 to rotate, driving the second sector gear 711 and the stopper 712 in the second unlocking device 7 to rotate counterclockwise. During the rotation of the stopper 712, the connecting rod 8 will be squeezed, causing the end of the connecting rod 8 located in the limit hole 5 to move downward, so that the circuit breaker realizes the opening state. When the second sector gear 711 in the second unlocking device 7 rotates to mesh with the first sector gear 610, at this time, the second unlocking device 7 drives the first unlocking device 6 to rotate together. When the protrusion 6111 on the first unlocking device 6 reaches the position of the first microswitch 410, the first microswitch 410 feeds the signal back to the control unit on the circuit board 3. At the same time, the stopper 712 on the second unlocking device 7 moves to the position of the third microswitch 412, and the third microswitch 412 feeds the signal back to the control unit on the circuit board 3. By comprehensively judging the signal feedback of the first microswitch 410 and the third microswitch 412, it is determined that the circuit breaker is in the opening state;

[0050] Finally, control the motor 2 to rotate the second sector gear 711 and the stopper 712 clockwise, driving the first unlocking device 6 and the connecting rod 8 to reset (the reset of the connecting rod 8 is jointly realized by the reset spring in the operating mechanism connected to the connecting rod 8 and the first unlocking device), reaching the closing state.

[0051] The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A circuit breaker opening and closing remote control mechanism, comprising a motor (2), a circuit board (3) and a micro switch (4) installed in a circuit breaker housing (1); the circuit board (3) is connected to the motor (2) and the micro switch (4), and the circuit board (3) controls the rotation of the motor (2) by receiving a signal from the micro switch (4); the characteristics are: It also comprises a first unlocking device (6), a second unlocking device (7) and a connecting rod (8); the first unlocking device (6) is rotatably mounted on the circuit breaker housing (1); the second unlocking device (7) is rotatably mounted on the circuit breaker housing (1) and is located on the left side of the first unlocking device (6); the second unlocking device (7) can rotate under the drive of the motor (2), and can drive the first unlocking device (6) to rotate after rotating a certain angle; the motor (2) is located below the second unlocking device (7), and the output end of the motor (2) is fixedly connected to the second unlocking device (7); one end of the connecting rod (8) is rotatably mounted on the circuit breaker housing (1), and the other end is fixedly connected to the operating mechanism; the connecting rod (8) can swing under the drive of the second unlocking device (7), thereby driving the circuit breaker operating mechanism to open and close; The micro switches (4) are provided with three, including a first micro switch (410), a second micro switch (411) and a third micro switch (412); wherein the first micro switch (410) is located on the left side above the first unlocking device (6), and the second micro switch (411) is located on the right side of the first micro switch (410); the first micro switch (410) and the second micro switch (411) are used to receive motion signals of the first unlocking device (6); the third micro switch (412) is located above the second unlocking device (7); the third micro switch (412) is used to receive motion signals of the second unlocking device (7); the micro switches (4) receive real-time signals from the first unlocking device (6) and the second unlocking device (7), and transmit them to a control unit on the circuit board (3), and the circuit board (3) controls the rotation of the motor (2) to control the opening and closing states of the circuit breaker.

2. A circuit breaker opening and closing remote control mechanism according to claim 1, characterized in that: The first unlocking device (6) comprises a handle (610) and a first sector gear (611); the handle (610) is fixedly connected to the first sector gear (611); the first sector gear (611) is rotatably mounted on the circuit breaker housing (1); a protrusion (6111) is provided on the first sector gear (611); the protrusion (6111) is located above the sector teeth of the first sector gear (611).

3. A circuit breaker opening and closing remote control mechanism according to claim 2, characterized in that: The second unlocking device (7) comprises three parts: a direction-changing base (710), a second sector gear (711) and a stopper (712); the direction-changing base (710) is fixedly mounted on the circuit breaker housing (1); a direction-changing mechanism is arranged inside the direction-changing base (710); the second sector gear (711) and the stopper (712) are coaxially mounted on the direction-changing base (710) and are transmission-connected to the direction-changing mechanism, and both can rotate with the direction-changing mechanism; the second sector gear (711) of the second unlocking device (7) can mesh with the first sector gear (611) of the first unlocking device (6) by rotating.

4. A circuit breaker opening and closing remote control mechanism according to claim 3, characterized in that: The second sector gear (711) and the stopper (712) are stacked together into one piece.

5. A circuit breaker opening and closing remote control mechanism according to claim 3, characterized in that: The direction-changing mechanism is a worm gear combination.

6. A circuit breaker opening and closing remote control mechanism according to claim 3, characterized in that: The connecting rod (8) cooperates with the stopper (712) of the second unlocking device (7); the connecting rod (8) swings under the rotation of the stopper (712) of the second unlocking device (7).

7. A circuit breaker opening and closing remote control mechanism according to claim 3, characterized in that: The first micro switch (410) and the second micro switch (411) receive a motion signal of the first unlocking device (6) by contacting a protrusion (6111) on the first unlocking device (6); the third micro switch (412) receives a motion signal of the second unlocking device (7) by contacting a stopper (712) on the second unlocking device (7).

8. A circuit breaker opening and closing remote control mechanism according to claim 1, characterized in that: The motor (2) and the circuit board (3) are electrically connected via a wire.

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