A circuit breaker with automatic recovery mechanism

Abstract

This utility model discloses a circuit breaker with an automatic recovery structure, comprising: a circuit breaker body; a disconnection operating mechanism installed and connected to the inner front end of the circuit breaker body; a rotational recovery mechanism movably installed inside the circuit breaker body and fixedly connected to the disconnection operating mechanism; an automatic recovery mechanism installed and connected to the circuit breaker body and connected to the rotational recovery mechanism; and a sensing control mechanism installed and connected to the inner front end of the circuit breaker body. This utility model discloses a circuit breaker with an automatic recovery structure that achieves higher overall recovery efficiency by using infrared sensing through the sensing control mechanism to control the automatic recovery mechanism for automatic recovery.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a circuit breaker with an automatic recovery structure. Background Technology

[0002] A circuit breaker is a switching device whose core function is to close, carry, and interrupt current under normal or abnormal circuit conditions to protect circuits and equipment from damage. When a circuit experiences a severe overload, short circuit, or undervoltage, the circuit breaker can automatically disconnect the circuit to prevent equipment from being damaged due to continuous operation of the fault.

[0003] The existing Chinese patent CN212303597U, disclosed on January 5, 2021, discloses a circuit breaker, including: an arm end, a resistor device, a deformation device, and a base end. The resistor device and the deformation device are both disposed between the arm end and the base end, and the arm end and the base end are movably connected.

[0004] However, when the above-mentioned device is in use, it uses the change in resistance to perform automatic control and recovery. However, the change in resistance value with temperature has a certain delay, which makes it difficult to effectively and quickly sense and recover. Overall, the recovery process is not very efficient. Utility Model Content

[0005] This utility model discloses a circuit breaker with an automatic recovery structure, aiming to solve the technical problem that the above-mentioned devices rely on changes in resistance for automatic control and recovery during use, but the resistance value changes with temperature with a certain delay, which cannot effectively and quickly sense and recover, and the overall recovery is not very efficient.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A circuit breaker with an automatic recovery mechanism includes:

[0008] Circuit breaker body;

[0009] Disconnection operating mechanism, which is installed and connected to the inner front end of the circuit breaker body;

[0010] A rotary recovery mechanism is movably installed inside the circuit breaker body and is fixedly connected to the disconnection operation mechanism.

[0011] An automatic recovery mechanism is installed and connected to the circuit breaker body and is connected to a rotary recovery mechanism;

[0012] A sensing control mechanism is installed and connected to the inner front end of the circuit breaker body.

[0013] The circuit breaker is equipped with a disconnection mechanism that rotates to open and close from the inside front of the circuit breaker body. A rotation recovery mechanism rotates inside the circuit breaker body, allowing for circuit disconnection protection in case of overheating. The rotation recovery mechanism, through the opening and closing of the disconnection mechanism, switches the circuit, enabling effective operation and control. An automatic recovery mechanism drives the rotation recovery mechanism to rotate, ensuring effective circuit recovery. When the sensing control mechanism detects a temperature drop, it controls the automatic recovery mechanism via an internal program. The automatic recovery mechanism then drives the rotation recovery mechanism in the forward direction, which in turn drives the disconnection mechanism to rotate, bringing it into contact with the circuit inside the circuit breaker body and restoring the entire circuit. This system provides fully automated operation and control. Furthermore, infrared sensing is more efficient than resistance sensing, effectively improving overall recovery efficiency.

[0014] In a preferred embodiment, the disconnection operation mechanism includes a reset wheel, an operating handle is fixedly connected to the middle of the front end of the reset wheel, the reset wheel is movably connected to the circuit breaker body via a sleeve shaft, an operating lever is fixedly connected to the outer wall of the inner end of the reset wheel, the operating lever is installed and connected to the rotation reset mechanism, and an automatic reset mechanism is installed at the right end of the sleeve shaft.

[0015] It can be opened and closed by rotating the structure with a disconnection mechanism.

[0016] In a preferred embodiment, the rotational recovery mechanism includes an operating plate, which is movably connected to the inside of the circuit breaker body via a rotating shaft. The lower end of the operating plate is fixedly connected to an operating lever, and a moving contact is fixedly connected to the upper end of the operating plate. A strip of wire is fixedly connected to the outer wall of the upper end of the moving contact, and a bimetallic strip is fixedly connected to the upper end of the strip of wire. The bimetallic strip and the moving contact are electrically connected in a circuit inside the circuit breaker body, and a sensing control mechanism is installed on the outer side of the bimetallic strip.

[0017] The structure is equipped with a rotational recovery mechanism, which can be rotated to open and close for power outages and power supply.

[0018] In a preferred embodiment, the sensing control mechanism includes a hollow housing with a hollow cavity inside. A battery is fixedly connected to the inner side of the hollow cavity on the hollow housing, and a PLC is mounted on the outer side of the battery on the hollow housing. A power supply line is electrically connected to the outer end of the PLC, and an infrared sensor is electrically connected to the outer end of the power supply line. The infrared sensor is fixedly connected inside the circuit breaker body, and the PLC and the battery are electrically connected via a connecting line.

[0019] By incorporating a sensing control mechanism, infrared temperature sensing can be used to effectively improve overall recovery efficiency.

[0020] In a preferred embodiment, the automatic recovery mechanism includes a recovery motor with a screw mounting plate fixed to its periphery. The recovery motor is mounted on the circuit breaker body via the screw mounting plate. A first coupling is fixed to the output shaft end of the recovery motor. A connecting rod is fixed to the inner end of the first coupling. A connecting shaft is fixed to the inner end of the connecting rod. A positioning protrusion is fixed to the outer wall of the connecting shaft. The recovery motor is electrically connected to the PLC via a connecting wire.

[0021] By incorporating an automatic recovery mechanism, rotational recovery can be performed automatically.

[0022] In a preferred embodiment, the infrared illumination position of the infrared sensor is located on the outside of the bimetallic strip.

[0023] An infrared sensor can be installed to emit infrared rays to sense the temperature of the bimetallic strip.

[0024] In a preferred embodiment, the connecting shaft and the positioning protrusion are positioned and sleeved in the keyway at the right end of the connecting shaft.

[0025] By providing a keyway on the right end of the connecting shaft, the connecting shaft and the positioning protrusion can be positioned and fitted together.

[0026] In a preferred embodiment, a right-angle connecting rod is fixed between the operating turntable and the bimetallic strip.

[0027] With the right-angle connecting rod, the bimetallic strip can rotate the operating plate when it is tilted up.

[0028] As described above, a circuit breaker with an automatic recovery structure includes: a circuit breaker body; a disconnection operating mechanism installed and connected to the inner front end of the circuit breaker body; a rotational recovery mechanism movably installed inside the circuit breaker body and fixedly connected to the disconnection operating mechanism; and an automatic recovery mechanism installed and connected to the circuit breaker body and connected to the rotational recovery mechanism. This utility model provides a circuit breaker with an automatic recovery structure that achieves higher overall recovery efficiency by using an infrared sensing mechanism to control the automatic recovery mechanism for automatic recovery through induction control. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a circuit breaker with an automatic recovery structure proposed in this utility model.

[0030] Figure 2 This utility model presents a schematic diagram of the combined structure of an induction control mechanism, a disconnection operation mechanism, and a rotational recovery mechanism for a circuit breaker with an automatic recovery structure.

[0031] Figure 3 This is a schematic diagram of the induction control mechanism of a circuit breaker with an automatic recovery structure proposed in this utility model.

[0032] Figure 4 This is a schematic diagram of the combined structure of the rotational restoration mechanism and the automatic restoration mechanism of a circuit breaker with an automatic restoration structure proposed in this utility model.

[0033] Figure 5 This is a schematic diagram of the automatic recovery mechanism of a circuit breaker with an automatic recovery structure proposed in this utility model.

[0034] In the attached diagram: 1. Circuit breaker body; 2. Reset motor; 21. Screw mounting plate; 22. First coupling; 23. Connecting end rod; 3. Reset wheel; 31. Operating handle; 32. Connecting shaft; 321. Positioning protrusion; 33. Sleeve shaft; 34. Operating lever; 4. Hollow housing; 41. PLC; 42. Battery; 43. Hollow cavity; 5. Bimetallic strip; 6. Operating turntable; 7. Strip braid; 71. Moving contact; 8. Rotating shaft; 9. Infrared sensor; 91. Power connection cable; 10. Right-angle connecting rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Reference Figures 1-5 A circuit breaker with an automatic recovery structure includes a circuit breaker body 1, a disconnection operation mechanism, a rotation recovery mechanism, an automatic recovery mechanism, and a sensing control mechanism.

[0038] The disconnecting operating mechanism is movably installed and connected to the inner front end of the circuit breaker body 1. The disconnecting operating mechanism can rotate and open / close from the inner front end of the circuit breaker body 1. The rotating return mechanism is movably installed inside the circuit breaker body 1. The rotating return mechanism can rotate inside the circuit breaker body 1, thus disconnecting the circuit for protection when the temperature is too high. The rotating return mechanism is fixedly connected to the disconnecting operating mechanism. The rotating return mechanism can switch the circuit open / closed via the rotation of the disconnecting operating mechanism, enabling effective operation and control. The automatic return mechanism is installed and connected to the circuit breaker body 1. The automatic return mechanism can be driven to restore operation on the circuit breaker body 1. The automatic return mechanism is connected to the rotating return mechanism and can drive the rotation... The automatic recovery mechanism rotates to open and close, thus effectively restoring the circuit. The sensing control mechanism is installed and connected to the inner front end of the circuit breaker body 1. The sensing control mechanism can perform sensing control on the circuit breaker body 1. When the sensing control mechanism senses a decrease in temperature, it controls the automatic recovery mechanism to drive it through an internally set program. The automatic recovery mechanism can then drive the disconnection operation mechanism to rotate, which in turn drives the rotation recovery mechanism to rotate, making the rotation recovery mechanism contact the internal circuit of the circuit breaker body 1, thereby restoring power supply to the circuit of the circuit breaker body 1. The entire operation is automated, and infrared sensing is more efficient than resistance change sensing, effectively improving the overall recovery efficiency.

[0039] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 In a preferred embodiment, the disconnection operation mechanism includes a reset wheel 3. An operating handle 31 is fixedly connected to the middle of the front end of the reset wheel 3 for easy manual opening and closing. The reset wheel 3 is movably connected to the circuit breaker body 1 via a sleeve shaft 33, allowing it to be positioned and rotated. An operating lever 34 is fixedly connected to the outer wall of the inner end of the reset wheel 3. When the reset wheel 3 rotates, it can drive the operating lever 34 to move. The operating lever 34 is installed and connected to the rotation reset mechanism, which can then drive the rotation reset mechanism to move. An automatic reset mechanism is installed at the right end of the sleeve shaft 33, which can drive the sleeve shaft 33 to rotate automatically without manual control.

[0040] The rotation recovery mechanism includes an operating plate 6, which is movably connected to the inside of the circuit breaker body 1 via a rotating shaft 8, allowing for effective positioning and rotation. The lower end of the operating plate 6 is fixedly connected to an operating lever 34, which can drive the operating plate 6 to rotate when it moves. A moving contact 71 is fixedly connected to the upper end of the operating plate 6, allowing the operating plate 6 to drive the moving contact 71 to rotate, thus enabling rotational opening and closing. A strip braid 7 is fixedly connected to the upper outer wall of the moving contact 71, which can effectively supply power. A bimetallic strip 5 is fixedly connected to the upper end of the strip braid 7, which can receive current. When the current is too large, the bimetallic strip 5 will tilt up, triggering a power outage. The bimetallic strip 5 and the moving contact 71 are electrically connected to the internal circuit of the circuit breaker body 1. A sensing control mechanism is installed on the outside of the bimetallic strip 5, which can effectively sense temperature.

[0041] A right-angle connecting rod 10 is fixed between the operating plate 6 and the bimetallic strip 5. When the bimetallic strip 5 is tilted up, it can drive the right-angle connecting rod 10 to change position. The right-angle connecting rod 10 can then drive the operating plate 6 to rotate, thereby completing the automatic power-off.

[0042] The automatic recovery mechanism includes a recovery motor 2, with a screw mounting plate 21 fixed to its periphery for corresponding installation. The recovery motor 2 is connected to the circuit breaker body 1 via the screw mounting plate 21, allowing for stable driving on the circuit breaker body 1. A first coupling 22 is fixed to the output shaft end of the recovery motor 2, which drives the first coupling 22 to rotate in both directions. A connecting rod 23 is fixed to the inner end of the first coupling 22, which drives the connecting rod 23 to rotate in both directions. A connecting shaft 32 is fixed to the inner end of the connecting rod 23, which drives the connecting shaft 32 to rotate in both directions. A positioning protrusion 321 is fixed to the outer wall of the connecting shaft 32, which drives the positioning protrusion 321 to rotate in both directions. The recovery motor 2 is electrically connected to the PLC 41 via a connecting cable for corresponding control.

[0043] The connecting shaft 32 and the positioning protrusion 321 are positioned and sleeved in the keyway at the right end of the sleeve shaft 33. The connecting shaft 32 and the positioning protrusion 321 can drive the sleeve shaft 33 to rotate. By rotating the sleeve shaft 33 in the forward direction, it can be restored.

[0044] Reference Figures 1-3In a preferred embodiment, the sensing control mechanism includes a hollow housing 4, with a hollow cavity 43 inside the hollow housing 4 for effective positioning. A battery 42 is fixedly connected to the inner side of the hollow cavity 43 on the hollow housing 4, providing effective power supply. The battery 42 is electrically connected to the power supply circuit inside the circuit breaker body 1 via a connecting wire, allowing for effective energy storage. The connection method is an electrical connection between the bimetallic strip 5 and the outgoing line section. A PLC 41 is installed on the outer side of the battery 42 on the hollow housing 4, enabling automated operation and control. The outer end of the PLC 41 is electrically connected to a power connection line 91, and the outer end of the power connection line 91 is electrically connected to an infrared sensor 9. The PLC 41 can receive infrared temperature data from the infrared sensor 9 via the power connection line 91, thereby automatically processing and judging the operation. The infrared sensor 9 is fixedly connected inside the circuit breaker body 1, allowing for stable placement and infrared temperature sensing. The PLC 41 and the battery 42 are electrically connected via a connecting wire for effective power supply and control.

[0045] The infrared sensor 9 is located on the outside of the bimetallic strip 5, which enables efficient temperature sensing.

[0046] Working Principle: During use, the disconnection operating mechanism can rotate and open / close inside the front end of the circuit breaker body 1, while the rotation recovery mechanism can rotate inside the circuit breaker body 1. This allows for circuit disconnection protection when the temperature is too high. The rotation recovery mechanism, through the rotation and opening / closing of the disconnection operating mechanism, can switch the circuit on and off, enabling effective operation and control. The automatic recovery mechanism can drive the rotation recovery mechanism to rotate and open / close, thus effectively restoring the circuit. When the sensing control mechanism detects a temperature drop, it controls the automatic recovery mechanism through an internally set program. The automatic recovery mechanism then drives the rotation recovery mechanism to rotate in the forward direction, which in turn drives the disconnection operating mechanism to rotate, causing it to contact the circuit inside the circuit breaker body 1, thereby restoring the entire circuit. The entire operation is automated, and infrared sensing is more efficient than resistance changes, effectively improving the overall recovery efficiency.

[0047] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A circuit breaker with automatic recovery structure, characterized by, include: Circuit breaker body (1); Disconnection operating mechanism, which is installed and connected to the inner front end of the circuit breaker body (1); A rotational recovery mechanism is movably installed inside the circuit breaker body (1) and is fixedly connected to the disconnection operation mechanism; An automatic recovery mechanism is installed and connected to the circuit breaker body (1), and the automatic recovery mechanism is connected to the rotary recovery mechanism; The sensing control mechanism is installed and connected to the inner front end of the circuit breaker body (1).

2. A circuit breaker with automatic recovery structure according to claim 1, characterized in that, The disconnection operation mechanism includes a reset wheel (3), with an operation handle (31) fixedly connected to the middle of the front end of the reset wheel (3). The reset wheel (3) is movably connected to the circuit breaker body (1) via a sleeve shaft (33). An operation lever (34) is fixedly connected to the outer wall of the inner end of the reset wheel (3). The operation lever (34) is installed and connected to the rotation reset mechanism. An automatic reset mechanism is installed at the right end of the sleeve shaft (33).

3. A circuit breaker with automatic recovery structure according to claim 1 or 2, characterized in that, The rotation recovery mechanism includes an operating plate (6), which is movably connected to the inside of the circuit breaker body (1) via a rotating shaft (8). The lower end of the operating plate (6) is fixedly connected to the operating lever (34). A moving contact (71) is fixedly connected to the upper end of the operating plate (6). A strip braid (7) is fixedly connected to the outer wall of the upper end of the moving contact (71). A bimetallic strip (5) is fixedly connected to the upper end of the strip braid (7). The bimetallic strip (5) and the moving contact (71) are electrically connected in the circuit inside the circuit breaker body (1). An induction control mechanism is installed on the outer side of the bimetallic strip (5).

4. A circuit breaker with automatic recovery structure according to claim 3, characterized in that, The sensing control mechanism includes a hollow housing (4), with a hollow cavity (43) inside the hollow housing (4). A battery (42) is fixedly connected to the inner side of the hollow cavity (43) on the hollow housing (4). A PLC (41) is installed on the outer side of the battery (42) on the hollow housing (4). A power connection line (91) is electrically connected to the outer end of the PLC (41). An infrared sensor (9) is electrically connected to the outer end of the power connection line (91). The infrared sensor (9) is fixedly connected inside the circuit breaker body (1). The PLC (41) and the battery (42) are electrically connected through a connection line.

5. A circuit breaker with automatic recovery structure according to claim 3, characterized in that, The automatic recovery mechanism includes a recovery motor (2), a screw mounting plate (21) is fixedly connected to the periphery of the recovery motor (2), the recovery motor (2) is mounted on the circuit breaker body (1) through the screw mounting plate (21), a first coupling (22) is fixedly connected to the output shaft end of the recovery motor (2), a connecting end rod (23) is fixedly connected to the inner end of the first coupling (22), a connecting shaft rod (32) is fixedly connected to the inner end of the connecting end rod (23), a positioning protrusion (321) is fixedly connected to the outer wall of the connecting shaft rod (32), and the recovery motor (2) is electrically connected to the PLC (41) through a connecting line.

6. A circuit breaker with automatic recovery structure according to claim 4, characterized in that, The infrared irradiation position of the infrared sensor (9) is located on the outside of the bimetallic sheet (5).

7. A circuit breaker with automatic recovery structure according to claim 5, characterized in that, The connecting shaft (32) and the positioning bump (321) are sleeved in the right end key groove of the sleeving shaft (33).

8. The circuit breaker with automatic recovery structure according to claim 5, characterized in that, The right angle connecting rod (10) is fixed between the operating plate (6) and the bimetallic strip (5).

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