A circuit breaker motor operated mechanism

Abstract

The application relates to the technical field of circuit breakers, in particular to a circuit breaker electric operating mechanism, which comprises a worm, one side of the worm is provided with a worm wheel, one side of the worm wheel is installed with a transmission part, one end of the transmission part is rotationally connected with the center of the worm wheel, the other end of the transmission part is connected with a rotating part through a connecting rod, one side of the rotating part is connected with a moving contact through a linkage, the outer side of the moving contact is provided with a static contact, and the rotating part and the moving contact are both installed through a support. In the circuit breaker electric operating mechanism, the cooperation transmission of the worm and the worm wheel can convert the rotary motion of the motor into the required operating force, and the transmission performance is improved. Through the cooperation of the transmission part, the connecting rod, the rotating part, the linkage, the moving contact and the static contact, remote control and quick response of the circuit breaker are realized, and the operation reliability is improved. Through the structure of the convex platform and the circular groove, the worm wheel can be limited and fixed, and the operation stability is improved.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and more specifically, to an electric operating mechanism for a circuit breaker. Background Technology

[0002] Circuit breakers are crucial switching devices in power systems, used to control the connection and disconnection of circuits. The electric operating mechanism is a vital component of the circuit breaker, enabling remote control via electric means. In existing circuit breaker electric operating mechanisms, worm gears and worm wheels are common transmission components, converting the rotational motion of the motor into the required operating force. However, existing circuit breaker electric operating mechanisms have certain problems regarding the fit between the worm gear and worm wheel, as well as transmission accuracy, affecting operational stability and reliability. Summary of the Invention

[0003] The purpose of this invention is to provide an electric operating mechanism for circuit breakers, which solves the problems mentioned in the background art regarding the coordination between the transmission worm and worm wheel and the transmission accuracy of existing electric operating mechanisms for circuit breakers, thus affecting the stability and reliability of operation.

[0004] To achieve the above objectives, the present invention provides an electric operating mechanism for a circuit breaker, including a worm gear, a worm wheel on one side of the worm gear, a transmission component mounted on one side of the worm wheel, one end of the transmission component being rotatably connected to the center of the worm wheel, the other end of the transmission component being connected to a rotating component via a transmission link, a moving contact on one side of the rotating component via a linkage component, a stationary contact on the outer side of the moving contact, and both the rotating component and the moving contact being mounted via a bracket.

[0005] As a preferred embodiment of the present invention, a central shaft is installed at the center of the worm gear, the central shaft is rotatably connected to one end of the transmission component, the other end of the transmission component is provided with a connecting hole, and one end of the transmission connecting rod is rotatably connected to the connecting hole.

[0006] As a preferred embodiment of the present invention, a circular groove is provided on one side of the worm gear, and a boss is installed on the inner sidewall of the circular groove. When the worm gear rotates, it drives the boss to move, thereby driving the transmission component to rotate.

[0007] As a preferred embodiment of the present invention, the rotating component is provided with a shaft hole, a button connecting rod connecting hole, a transmission connecting rod connecting hole and a linkage hole.

[0008] As a preferred embodiment of the present invention, the bracket is installed inside the circuit breaker housing, one end of the bracket is rotatably connected to the shaft hole, and the other end of the bracket is rotatably connected to the moving contact.

[0009] As a preferred embodiment of the present invention, one end of the linkage component is rotatably connected to the linkage hole, and the other end of the linkage component is rotatably connected to the moving contact.

[0010] As a preferred embodiment of the present invention, a button connecting rod is connected to the button connecting rod connecting hole, and a button is installed on the outer end of the button connecting rod.

[0011] In a preferred embodiment of the present invention, the worm gear is driven to rotate by a geared motor.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] In this circuit breaker's electric operating mechanism, the rotational motion of the motor is converted into the required operating force through the coordinated transmission of a worm gear and worm wheel, improving transmission performance. The cooperation of transmission components, connecting rods, rotating components, linkage components, moving contacts, and stationary contacts enables remote control and rapid response of the circuit breaker, improving operational reliability. The structure featuring bosses and circular grooves allows for the limiting and fixing of the worm wheel, enhancing operational stability. Driving the worm gear with a geared motor enables smooth control of the circuit breaker, improving operational precision. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the worm gear structure in this invention;

[0016] Figure 3 This is a schematic diagram of the rotating component in this invention.

[0017] The meanings of the labels in the diagram are as follows:

[0018] 1. Button; 2. Button linkage; 3. Gear motor; 4. Worm gear; 5. Worm wheel; 51. Central shaft; 52. Boss; 6. Transmission component; 61. Connecting hole; 7. Transmission linkage; 8. Bracket; 9. Rotating component; 91. Shaft hole; 92. Button linkage connecting hole; 93. Transmission linkage connecting hole; 94. Linkage hole; 10. Linkage component; 11. Moving contact; 12. Stationary contact. Detailed Implementation

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

[0020] This invention provides an electrically operated mechanism for a circuit breaker, such as... Figures 1-3 As shown, the circuit breaker includes a worm gear 4, with a worm wheel 5 on one side. The worm gear 4 meshes with the worm wheel 5, converting the rotational motion of the motor into the required operating force, thus improving transmission performance. This design makes the operation of the operating mechanism smoother and reduces unnecessary vibration and noise. A transmission component 6 is mounted on one side of the worm wheel 5, with one end rotatably connected to the center of the worm wheel 5. The other end of the transmission component 6 is connected to a rotating component 9 via a transmission link 7. A moving contact 11 is connected to one side of the rotating component 9 via a linkage 10, and a stationary contact 12 is located on the outer side of the moving contact 11. This linkage enables a rapid response to the circuit breaker, improving operational reliability. This structural design makes the operating mechanism more accurate and timely in performing circuit breaker operations, reducing the possibility of operational errors. Both the rotating component 9 and the moving contact 11 are mounted via a bracket 8.

[0021] In this embodiment, a central shaft 51 is installed at the center of the worm gear 5. The central shaft 51 is rotatably connected to one end of the transmission component 6. The other end of the transmission component 6 is provided with a connecting hole 61. One end of the transmission connecting rod 7 is rotatably connected to the connecting hole 61, which facilitates the connection and fixation of the transmission component 6.

[0022] Specifically, a circular groove is provided on one side of the worm gear 5, and a boss 52 is installed on the inner side wall of the circular groove. When the worm gear 5 rotates, it drives the boss 52 to move, thereby driving the transmission component 6 to rotate.

[0023] Furthermore, the rotating component 9 is provided with a shaft hole 91, a button connecting rod connecting hole 92, a transmission connecting rod connecting hole 93, and a linkage hole 94.

[0024] Furthermore, the bracket 8 is installed inside the circuit breaker housing. One end of the bracket 8 is rotatably connected to the shaft hole 91, and the other end of the bracket 8 is rotatably connected to the moving contact 11, which facilitates the installation and fixation of the bracket 8.

[0025] Furthermore, one end of the linkage 10 is rotatably connected to the linkage hole 94, and the other end of the linkage 10 is rotatably connected to the moving contact 11, which facilitates the installation and fixation of the linkage 10.

[0026] Furthermore, a button link 2 is connected to the button link connection hole 92, and a button 1 is installed on the outer end of the button link 2. The button 1 can be used to open and close the gate.

[0027] Furthermore, the worm gear 4 is driven to rotate by the geared motor 3, which facilitates the electric control of the opening and closing of the gate.

[0028] Finally, it should be noted that the electronic components in the geared motor 3 involved in this embodiment are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. They are all technologies known in the art.

[0029] When the circuit breaker electric operating mechanism of the present invention is in use, the reduction motor 3 first drives the worm gear 5 to rotate counterclockwise. The boss 52 on the worm gear 5 pushes the transmission component 6 to rotate, which in turn drives the rotating component 9 to rotate through the transmission link 7, causing the moving contact 11 to contact the stationary contact 12, thereby closing the mechanism. After the contacts are closed, the worm gear 5 rotates clockwise to reset, and the boss 52 returns to its original position. This is to make room for the transmission component 6, so that the button 1 can be manually opened and closed freely. The reduction motor 3 drives the worm gear 5 to rotate clockwise, and the boss 52 on the worm gear 5 pushes the transmission component 6 to rotate clockwise, which drives the transmission link 7 to pull the rotating component 9 to rotate counterclockwise, thereby unlocking the mechanism to open the circuit. After opening the circuit, the worm gear 5 rotates counterclockwise to reset, and the boss 52 returns to its original position. This is to make room for the transmission component 6, so that the button 1 can be manually opened and closed freely.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker electric operating mechanism, comprising a worm gear (4), characterized in that: A worm wheel (5) is provided on one side of the worm (4), and a transmission component (6) is installed on one side of the worm wheel (5). One end of the transmission component (6) is rotatably connected to the center of the worm wheel (5), and the other end of the transmission component (6) is connected to a rotating component (9) through a transmission link (7). A moving contact (11) is connected to one side of the rotating component (9) through a linkage component (10). A stationary contact (12) is provided on the outside of the moving contact (11). Both the rotating component (9) and the moving contact (11) are installed through a bracket (8). A central shaft (51) is installed at the center of the worm gear (5). The central shaft (51) is rotatably connected to one end of the transmission component (6). The other end of the transmission component (6) is provided with a connecting hole (61). One end of the transmission connecting rod (7) is rotatably connected to the connecting hole (61). The rotating component (9) has a shaft hole (91), a button linkage connection hole (92), a transmission linkage connection hole (93), and a linkage hole (94).

2. The circuit breaker electric operating mechanism according to claim 1, characterized in that: A circular groove is provided on one side of the worm gear (5), and a boss (52) is installed on the inner side wall of the circular groove. When the worm gear (5) rotates, it drives the boss (52) to move, thereby driving the transmission component (6) to rotate.

3. The circuit breaker electric operating mechanism according to claim 1, characterized in that: The bracket (8) is installed inside the circuit breaker housing. One end of the bracket (8) is rotatably connected to the shaft hole (91), and the other end of the bracket (8) is rotatably connected to the moving contact (11).

4. The circuit breaker electric operating mechanism according to claim 1, characterized in that: One end of the linkage component (10) is rotatably connected to the linkage hole (94), and the other end of the linkage component (10) is rotatably connected to the moving contact (11).

5. The circuit breaker electric operating mechanism according to claim 1, characterized in that: A button link (2) is connected to the button link connecting hole (92), and a button (1) is installed on the outer end of the button link (2).

6. The circuit breaker electric operating mechanism according to claim 1, characterized in that: The worm (4) is driven to rotate by a geared motor (3).

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