Universal thickness miniature circuit breaker with automatic switching-on and switching-off functions

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a universal thickness miniature circuit breaker with automatic switching-on and switching-off functions, which comprises a shell, a transmission mechanism and a driving mechanism, the driving mechanism comprises a servo motor, the side surface of the servo motor is fixedly connected with the inner wall of the side surface of the shell, and the transmission mechanism is connected with the driving mechanism. An output shaft of the servo motor is fixedly connected with a worm, the transmission mechanism comprises a rotating disc, the side face of the rotating disc is movably sleeved with a worm gear, the side face of the worm gear is movably connected with a mounting disc, the side face of the mounting disc is movably sleeved with the inner wall of the side face of the shell, and the side face of the rotating disc is fixedly connected with a rotary transmission shaft. According to the utility model, an operator remotely controls the servo motor to operate to drive the worm to rotate, and the worm and the worm gear are meshed to drive the turntable to rotate, so that the rotary transmission shaft drives the switch device and controls the opening and closing of the circuit breaker, remote control of equipment is realized, and the safety of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and more specifically to a general-purpose thickness miniature circuit breaker with automatic closing and opening functions. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and close, carry, and interrupt current under abnormal circuit conditions within a specified time. It is an important electrical device for the protection and operation of power systems. It can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors.

[0003] Inadequacies of existing technology: Existing circuit breakers are controlled by operators manually pushing the switch to open and close, and cannot be remotely controlled. Furthermore, close-range control of the circuit breaker by operators can easily lead to misalignment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a universal thickness miniature circuit breaker with automatic closing and opening functions to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal thickness miniature circuit breaker with automatic closing and opening functions, comprising a housing, and further comprising: a transmission mechanism and a drive mechanism, wherein the side of the transmission mechanism is movably sleeved with the inner side wall of the housing, and the side of the drive mechanism is fixedly connected to the inner side wall of the housing, the drive mechanism comprising a servo motor, the side of the servo motor being fixedly connected to the inner side wall of the housing, and a worm gear being fixedly connected to the output shaft of the servo motor, the transmission mechanism comprising a turntable, a worm wheel being movably sleeved with the side of the turntable, a mounting plate being movably connected with the side of the worm wheel, the side of the mounting plate being movably sleeved with the inner side wall of the housing, the bottom end of the worm wheel meshing with the top end of the worm gear, and a rotary transmission shaft being fixedly connected to the side of the turntable for insertion into a reserved slot in the switch device for driving.

[0006] Furthermore, an opening and closing gate is fixedly connected to the top of the turntable, the diameter of the turntable is the same as the diameter of the mounting plate, and the bottom end of the opening and closing gate is movably connected to the top end of the mounting plate.

[0007] Furthermore, the servo motor is equipped with a signal transmitting and receiving device, and a battery is connected to the side of the servo motor.

[0008] Furthermore, a mounting platform is fixedly connected to the side of the turntable, and the side of the mounting platform is movably sleeved with the inner wall of the side of the worm gear. A locking block is fixedly connected to the side of the mounting platform. A splicing groove is opened on the side of the mounting plate, and the side of the splicing groove meshes with the side of the locking block. A push block is fixedly connected to the side of the worm gear, and a movable groove is opened on the side of the mounting plate corresponding to the position of the push block. The side of the movable groove is movably connected to the side of the push block.

[0009] Furthermore, both the push block and the movable groove are fan-shaped structures, and the angle difference between the push block and the movable groove is 135 degrees.

[0010] Furthermore, the housing, transmission mechanism, and worm gear are all made of insulating plastic, and the servo motor has an aluminum alloy outer shell.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model enables remote control of the servo motor by an operator, which drives the worm gear to rotate. The worm gear and worm wheel mesh with each other to drive the turntable to rotate, thereby driving the rotary transmission shaft to drive the switching device and control the opening and closing of the circuit breaker, realizing remote control of the equipment and improving equipment safety.

[0013] 2. This utility model ensures sufficient movement space for the push block within the movable slot by maintaining a 135-degree angle difference between the push block and the movable slot. This prevents interference between the worm gear and the rotating disk, allowing the circuit breaker to trip normally. Simultaneously, the operator can rotate the rotating disk by pushing the switch, causing the rotary drive shaft to control the opening and closing of the switch. The worm gear rotates counterclockwise, causing the push block to move counterclockwise within the movable slot and contact the right side of the slot. This drives the mounting plate to rotate counterclockwise. The interlocking slot and locking block engage to rotate the rotating disk. The rotary drive shaft then engages with the locking slot on the side of the switch, controlling the circuit breaker to close. Afterward, the servo motor is started in reverse, causing the push block to rotate clockwise with the worm gear to the left side of the movable slot. This ensures sufficient space between the push block and the right side of the movable slot, ensuring automatic tripping in case of a circuit fault. The structure is simple and helps reduce costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the transmission mechanism structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the worm gear structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the mounting disk structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the turntable structure of this utility model.

[0019] The attached figures are labeled as follows: 1. Housing; 2. Transmission mechanism; 201. Turntable; 202. Mounting plate; 203. Worm gear; 204. Opening and closing gate; 205. Rotary transmission shaft; 206. Movable groove; 207. Push block; 208. Mounting platform; 209. Splicing groove; 210. Locking block; 3. Drive mechanism; 301. Servo motor; 302. Worm gear. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The universal thickness miniature circuit breaker with automatic closing and opening functions involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figures 1 to 5 This utility model provides a universal thickness miniature circuit breaker with automatic closing and opening functions, including a housing 1, and further including: a transmission mechanism 2 and a drive mechanism 3. The side of the transmission mechanism 2 is movably sleeved with the inner side wall of the housing 1, and the side of the drive mechanism 3 is fixedly connected to the inner side wall of the housing 1. The drive mechanism 3 includes a servo motor 301, the side of which is fixedly connected to the inner side wall of the housing 1, and a worm gear 302 is fixedly connected to the output shaft of the servo motor 301. The transmission mechanism 2 includes a turntable 201, a worm wheel 203 is movably sleeved with the side of the turntable 201, and a mounting plate 202 is movably connected to the side of the worm wheel 203. The side is movably sleeved with the inner wall of the side of the housing 1. The bottom end of the worm gear 203 meshes with the top end of the worm 302. The side of the turntable 201 is fixedly connected to a rotary drive shaft 205, which is used to insert into the reserved slot in the switch device for driving. During the installation process, other components required by the circuit breaker are installed inside the housing 1, and it is ensured that the rotary drive shaft 205 is inserted into the reserved slot in the switch device. During use, the operator remotely controls the servo motor 301 to drive the worm 302 to rotate. The worm 302 and the worm gear 203 mesh with each other to drive the turntable 201 to rotate, thereby driving the rotary drive shaft 205 to drive the switch device, control the opening and closing of the circuit breaker, and realize remote control of the equipment.

[0022] The top of the turntable 201 is fixedly connected to the switch 204. The diameter of the turntable 201 is the same as the diameter of the mounting plate 202. The bottom of the switch 204 is movably connected to the top of the mounting plate 202. The operator can drive the turntable 201 to rotate by pushing the switch 204, so that the rotary transmission shaft 205 drives the switching device to control the opening and closing of the circuit breaker, thereby realizing manual control of the circuit breaker. The bottom of the switch 204 is close to the top of the mounting plate 202 to ensure stability when the switch 204 moves.

[0023] The servo motor 301 is equipped with a signal transmitting and receiving device. A battery is connected to the side of the servo motor 301. The battery serves as a backup power source to power the servo motor 301 and ensure the normal operation of the equipment. The signal transmitting and receiving device is used to receive signals remotely sent by the operator to control the servo motor 301.

[0024] The rotating disk 201 has a mounting platform 208 fixedly connected to its side. The side of the mounting platform 208 is movably sleeved with the inner wall of the worm gear 203. A locking block 210 is fixedly connected to the side of the mounting platform 208. A splicing groove 209 is provided on the side of the mounting disk 202, and the side of the splicing groove 209 meshes with the side of the locking block 210. A push block 207 is fixedly connected to the side of the worm gear 203. A movable groove 206 is provided on the side of the mounting disk 202 corresponding to the position of the push block 207. The side of the movable groove 206 is movably connected to the side of the push block 207. During installation, the mounting disk 202 can rotate freely when placed in the groove reserved on the inner wall of the side of the housing 1. The worm gear 201... Three sets are installed on the mounting platform 208, with push block 207 inserted into the movable slot 206 and locking block 210 inserted into the mounting platform 208. The worm gear 203 rotates counterclockwise, driving push block 207 to move, so that the side of push block 207 contacts the right side of movable slot 206, driving mounting plate 202 to rotate. Through the meshing of splicing slot 209 and locking block 210, the turntable 201 rotates counterclockwise, so that the rotary transmission shaft 205 drives the control circuit breaker to close. Then, the worm gear 302 starts in reverse, causing push block 207 to move to the left side of movable slot 206, making it convenient for the operator to manually push the opening and closing switch 204 to disconnect the circuit breaker. The circuit breaker operates normally and performs normal disconnection protection circuit.

[0025] Both the push block 207 and the movable slot 206 are fan-shaped structures. The angle difference between the push block 207 and the movable slot 206 is 135 degrees, which ensures that the push block 207 has enough room to move inside the movable slot 206, avoids interference of the worm gear 203 with the rotation of the turntable 201, and enables the circuit breaker to trip normally.

[0026] The housing 1, transmission mechanism 2 and worm gear 302 are all made of insulating plastic. The servo motor 301 is equipped with an aluminum alloy shell. The aluminum alloy shell isolates the external magnetic field and prevents the current in the circuit breaker from affecting the servo motor 301. The insulating plastic prevents the magnetic field generated by the current from affecting the transmission components.

[0027] The working principle of this utility model is as follows: During installation, the mounting plate 202 is placed inside the groove on the inner wall of the side of the housing 1, the worm gear 203 is fitted onto the mounting platform 208, and the push block 207 is engaged in the movable slot 206, with the locking block 210 inserted into the mounting platform 208. Other components required for the circuit breaker are installed inside the housing 1, ensuring that the rotary drive shaft 205 is inserted into the reserved slot of the switch device. The operator remotely sends a signal to the signal transmitting and receiving device inside the servo motor 301 to control the servo motor 301 to start and drive the worm gear 302 to rotate. Through the meshing of the worm gear 302 and the worm gear 203, the worm gear 203 is driven to rotate counterclockwise, causing the push block 207 to move counterclockwise with the worm gear 203 inside the movable slot 206 and to the right of the movable slot 206. The side contact causes the mounting plate 202 to rotate counterclockwise. The splicing groove 209 and the locking block 210 mesh with each other, causing the turntable 201 to rotate. The rotary transmission shaft 205 is engaged in the locking groove on the side of the switch device, controlling the circuit breaker to close. Then, the servo motor 301 is started in reverse, causing the push block 207 to rotate clockwise with the worm gear 203 to the left side of the movable groove 206. Sufficient space is left between the push block 207 and the right side of the movable groove 206 to ensure that the circuit will automatically trip and disconnect the circuit in case of a fault, realizing remote control of the equipment. The operator can also drive the turntable 201 to rotate by pushing the opening and closing gate 204, so that the rotary transmission shaft 205 controls the opening and closing of the switch device, avoiding interference of the worm gear 203 with the movement of the turntable 201.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal thickness miniature circuit breaker with automatic closing and opening functions, comprising a housing (1), characterized in that, Also includes: The transmission mechanism (2) and the drive mechanism (3) are provided. The side of the transmission mechanism (2) is movably sleeved with the inner side wall of the housing (1). The side of the drive mechanism (3) is fixedly connected to the inner side wall of the housing (1). The drive mechanism (3) includes a servo motor (301). The side of the servo motor (301) is fixedly connected to the inner side wall of the housing (1). A worm gear (302) is fixedly connected to the output shaft of the servo motor (301). The transmission mechanism (2) includes... A turntable (201) is provided, on the side of which a worm gear (203) is movably sleeved. A mounting plate (202) is movably connected to the side of the worm gear (203). The side of the mounting plate (202) is movably sleeved with the inner wall of the side of the housing (1). The bottom end of the worm gear (203) meshes with the top end of the worm (302). A rotary drive shaft (205) is fixedly connected to the side of the turntable (201) for insertion into a reserved slot in the switch device for driving.

2. A universal thickness miniature circuit breaker with automatic closing and opening functions according to claim 1, characterized in that: The top of the turntable (201) is fixedly connected to the opening and closing gate (204). The diameter of the turntable (201) is the same as the diameter of the mounting plate (202). The bottom end of the opening and closing gate (204) is movably connected to the top end of the mounting plate (202).

3. A universal thickness miniature circuit breaker with automatic closing and opening functions according to claim 1, characterized in that: The servo motor (301) is equipped with a signal transmitting and receiving device, and a battery is connected to the side of the servo motor (301).

4. A universal thickness miniature circuit breaker with automatic closing and opening functions according to claim 1, characterized in that: A mounting platform (208) is fixedly connected to the side of the turntable (201). The side of the mounting platform (208) is movably sleeved with the inner wall of the side of the worm gear (203). A locking block (210) is fixedly connected to the side of the mounting platform (208). A splicing groove (209) is opened on the side of the mounting plate (202). The side of the splicing groove (209) meshes with the side of the locking block (210). A push block (207) is fixedly connected to the side of the worm gear (203). A movable groove (206) is opened on the side of the mounting plate (202) corresponding to the position of the push block (207). The side of the movable groove (206) is movably connected to the side of the push block (207).

5. A universal thickness miniature circuit breaker with automatic closing and opening functions according to claim 4, characterized in that: Both the push block (207) and the movable groove (206) are fan-shaped structures, and the angle difference between the push block (207) and the movable groove (206) is 135 degrees.

6. A universal thickness miniature circuit breaker with automatic closing and opening functions according to claim 1, characterized in that: The housing (1), transmission mechanism (2) and worm gear (302) are all made of insulating plastic, and the servo motor (301) has an aluminum alloy shell on its outer side.

Images