An ultra-thin remote control circuit breaker

Abstract

The application relates to the technical field of circuit breaker devices, in particular to an ultrathin remote control circuit breaker which comprises a top cover and a base, a driven gear is arranged in the base, a sector gear is arranged in the middle of the front surface of the driven gear, a gear boss is arranged on the back surface of the driven gear, a trip lever is arranged in the base and close to the gear boss, an inner handle is arranged on one side of the front surface of the driven gear, an operating mechanism is connected to one end of the inner handle, the other end of the inner handle is engaged with the sector gear through a sector tooth, a helical gear is arranged above the driven gear, a driving gear is arranged in the middle of the helical gear, the driving gear is engaged with the driven gear, and a button is connected to one side of the top of the inner handle through a connecting rod. In the ultrathin remote control circuit breaker, a motor is adopted to realize remote control, a quick plug-in terminal is combined with a hydraulic electromagnetic circuit breaker mechanism, the width of the traditional hydraulic electromagnetic circuit breaker is compressed in a 10mm shell, and the installation density of a small ampere circuit breaker in a machine frame is doubled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breaker equipment, in particular to an ultra-thin remote control circuit breaker. BACKGROUND

[0002] In order to meet the requirements of high installation density and small volume under the same space for large current input and multi-circuit output, the size of the circuit breaker is required to be smaller and smaller.

[0003] The patent with publication number CN109859995B discloses a circuit breaker with high surge bearing capacity and strong arc extinguishing capacity. The circuit breaker comprises an outgoing line terminal block, a trip coil, a handle, a lever, a lock catch, a terminal strip, a flexible connection, a moving contact support, an arc extinguishing cover, a stationary contact, an upper cover and a lower cover, and a backup protection unit, wherein the backup protection unit comprises a fault driver, a trip mechanism, a contact switch, an operating handle, and a surge bypass device connected in parallel at both ends of the fault driver. This can greatly improve the continuity of power supply to the equipment. On the other hand, the arc extinguishing cover device can effectively reduce the damage of electric arc.

[0004] The arc extinguishing cover device provided by the above technical solution can effectively reduce the damage of electric arc, but the size of the circuit breaker is generally 1U high and 20mm wide, which is large in volume, resulting in that the installation density still cannot meet the requirements, and the circuit breaker cannot be remotely controlled by motor drive, and the combination of quick plug-in terminals and hydraulic electromagnetic circuit breaker mechanism cannot achieve the purpose of doubling the installation density of small ampere circuit breakers in the machine frame. SUMMARY

[0005] The present application aims to provide an ultra-thin remote control circuit breaker to solve the problems of installation density still not meeting the requirements, and the circuit breaker being unable to be remotely controlled by motor drive, and the combination of quick plug-in terminals and hydraulic electromagnetic circuit breaker mechanism being unable to achieve the purpose of doubling the installation density of small ampere circuit breakers in the machine frame.

[0006] To achieve the above-mentioned purpose, the present application provides an ultra-thin remote control circuit breaker, comprising a top cover and a base, wherein the inside of the base is provided with a driven gear, the front middle part of the driven gear is provided with a sector gear, the back of the driven gear is provided with a gear boss, the inside of the base close to the gear boss is provided with a trip lever, one side of the front of the driven gear is provided with an inner handle, one end of the inner handle is connected with an operating mechanism, the other end of the inner handle is engaged with the sector gear through a sector tooth, the top of the driven gear is provided with a helical gear, the middle part of the helical gear is provided with a driving gear, the driving gear is engaged with the driven gear, and one side of the top of the inner handle is connected with a button through a connecting rod.

[0007] As preferred, the trip bar, the driven gear, the bevel gear and the inner handle are all installed in the base through the rotating shaft.

[0008] As preferred, a motor is installed in the base, the output shaft of the motor is installed with a worm, and the worm is connected with the outside of the bevel gear.

[0009] As preferred, a first micro switch is installed below the driven gear, and a second micro switch is installed below the inner handle.

[0010] As preferred, a negative terminal clamp and a positive terminal clamp are installed at one end of the inside of the base, a negative conductive clamp and a positive conductive clamp are installed at the other end of the inside of the base, the positive terminal clamp is connected with the positive conductive clamp through a positive connecting plate, the negative terminal clamp is connected with one end of the coil below the operating mechanism, the inner end of the negative conductive clamp is connected with a shunt through a soft connecting piece, the bottom end of the shunt is connected with a U-shaped static contact, the upper end of the U-shaped static contact is provided with an arc-extinguishing chamber, and the shunt is arranged at the intermediate position between the arc-extinguishing chamber and the signal terminal.

[0011] As preferred, a circuit board is further installed in the inside of the base, and a signal terminal is installed at one end of the circuit board.

[0012] As preferred, a buckle is arranged on the top of the button.

[0013] As preferred, the operating mechanism can control the contact and separation of the moving contact and the static contact, so as to realize the on-off of the circuit.

[0014] As preferred, a negative terminal hole, a negative terminal dismounting groove, a positive terminal hole and a positive terminal dismounting groove are sequentially arranged at one end of the base, the negative terminal hole is arranged adjacent to the button, the negative terminal dismounting groove is arranged at the lower end of the negative terminal hole, the positive terminal hole is arranged at the lower end of the negative terminal dismounting groove, and the positive terminal dismounting groove is arranged at the lower end of the positive terminal hole.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. In the ultra-thin remote control circuit breaker, the motor is used to realize remote control, the quick plug-in terminal is combined with the hydraulic electromagnetic circuit breaker mechanism, the width of the traditional hydraulic electromagnetic circuit breaker is compressed in the 10mm shell, and the installation density of the small ampere circuit breaker in the machine frame is doubled.

[0017] 2. In the ultra-thin remote control circuit breaker, the motor drives the sector gear through the gear to drive the inner handle to realize closing, the second micro switch stops after detecting the position of the gear, and the circuit breaker can be freely closed and opened; the gear boss on the sector gear rotates to drive the trip bar to rotate, pushes the inner handle to rotate, the operating mechanism opens, the first micro switch detects the position of the inner handle, and the motor is de-energized. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the driven gear in this invention;

[0021] Figure 4 This is a schematic diagram of the end structure of the present invention.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Top cover; 2. Base; 21. First micro switch; 22. Second micro switch; 23. Negative terminal clamp; 24. Positive terminal clamp; 25. Positive connection plate; 26. U-shaped stationary contact; 27. Shunt; 28. Flexible connector; 29. ​​Negative conductive clamp; 210. Positive conductive clamp; 211. Negative terminal hole; 212. Negative wire disconnection groove; 213. Positive terminal hole; 214. Positive wire disconnection groove; 3. Tripping lever; 4. Button; 5. Buckle; 6. Connecting rod; 7. Motor; 71. Worm gear; 8. Driven gear; 81. Sector gear; 82. Inner handle; 83. Gear boss; 9. Helical gear; 91. Driving gear; 10. Signal terminal; 11. Operating mechanism; 12. Arc extinguishing chamber; 13. Circuit board. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This invention provides an ultra-thin remote-controlled circuit breaker, such as... Figures 1-4 As shown, the device includes a top cover 1 and a base 2. A driven gear 8 is installed inside the base 2. A sector gear 81 is installed in the center of the front of the driven gear 8. A gear boss 83 is installed on the back of the driven gear 8. A release lever 3 is installed inside the base 2 near the gear boss 83. An inner handle 82 is provided on one side of the front of the driven gear 8. One end of the inner handle 82 is connected to an operating mechanism 11. The other end of the inner handle 82 meshes with the sector gear 81 through sector teeth. A helical gear 9 is provided above the driven gear 8. A driving gear 91 is installed in the middle of the helical gear 9. The driving gear 91 meshes with the driven gear 8. A button 4 is connected to the top side of the inner handle 82 through a connecting rod 6.

[0026] In this embodiment, the release lever 3, driven gear 8, helical gear 9, and inner handle 82 are all mounted in the base 2 via a rotating shaft, which facilitates the rotation of the release lever 3, driven gear 8, helical gear 9, and inner handle 82.

[0027] Specifically, a motor 7 is installed inside the base 2. A worm gear 71 is installed on the output shaft of the motor 7. The worm gear 71 is connected to the outside of the helical gear 9. The motor 7 drives the helical gear 9 to rotate, which in turn drives the driven gear 8 to rotate through the driving gear 91, thereby driving the sector gear 81 to rotate, and thus driving the inner handle 82 to swing.

[0028] Furthermore, a first micro switch 21 is installed below the driven gear 8. After the first micro switch 21 detects that the driven gear 8 has rotated to the correct position, the motor 7 can be stopped. A second micro switch 22 is installed below the inner handle 82. After the second micro switch 22 detects that the inner handle 82 has rotated to the correct position, the motor 7 can be stopped.

[0029] Furthermore, a negative terminal clamp 23 and a positive terminal clamp 24 are installed at one end of the interior of the base 2, and a negative terminal conductive clamp 29 and a positive terminal conductive clamp 210 are installed at the other end of the interior of the base 2. The positive terminal clamp 24 is connected to the positive terminal conductive clamp 210 through the positive terminal connecting plate 25. The negative terminal clamp 23 is connected to one end of the coil below the operating mechanism 11. The inner end of the negative terminal conductive clamp 29 is connected to a shunt 27 through a flexible connector 28. The bottom end of the shunt 27 is connected to a U-shaped stationary contact 26. An arc-extinguishing chamber 12 is provided at the upper end of the U-shaped stationary contact 26. The shunt 27 is located between the arc-extinguishing chamber 12 and the signal terminal 10. The positive terminal path is realized through the positive terminal clamp 24, the positive terminal connecting plate 25, and the positive terminal conductive clamp 210, and the negative terminal path is realized through the negative terminal clamp 23, the operating mechanism 11, the U-shaped stationary contact 26, the shunt 27, the flexible connector 28, and the negative terminal conductive clamp 29.

[0030] Furthermore, a circuit board 13 is also installed on the inner side of the base 2. A signal terminal 10 is installed at one end of the circuit board 13 for signal transmission. The signal terminal 10 is used to control the signal output and input of the motor 7 and the shunt 27. The shunt 27 is used to detect the main circuit current. The shunt 27 is located between the signal terminal 10 and the arc-extinguishing chamber 12.

[0031] Furthermore, a latch 5 is provided on the top of button 4 to lock button 4 in place and prevent button 4 from accidentally returning to its original position.

[0032] Furthermore, the operating mechanism 11 can control the contact and separation of the moving contact and the stationary contact to realize the closing and opening actions.

[0033] Furthermore, one end of the base 2 is provided with a negative terminal connection hole 211, a negative terminal disconnection groove 212, a positive terminal connection hole 213, and a positive terminal disconnection groove 214 in sequence. The negative terminal connection hole 211 is arranged adjacent to the button 4. The negative terminal disconnection groove 212 is located at the lower end of the negative terminal connection hole 211. The positive terminal connection hole 213 is located at the lower end of the negative terminal disconnection groove 212. The positive terminal disconnection groove 214 is located at the lower end of the positive terminal connection hole 213.

[0034] When using the ultra-thin remote control circuit breaker of the present invention, first connect the positive terminal clamp 24 and the negative terminal clamp 23 to the load terminal, and connect the negative terminal conductive clamp 29 and the positive terminal conductive clamp 210 to the power input terminal. Then turn on the motor 7. The motor 7 can control the helical gear 9 to rotate counterclockwise, which in turn drives the driven gear 8 to rotate through the driving gear 91, which in turn drives the sector gear 81 to rotate, which in turn drives the inner handle 82 to swing, thereby realizing the closing action of the operating mechanism 11. At this time, the first micro switch 21 can stop the motor 7 after detecting that the driven gear 8 has rotated to the position. At this time, the circuit breaker can freely open and close.

[0035] The motor 7 continues to control the helical gear 9 to rotate counterclockwise, and the gear boss 83 on the sector gear 81 drives the trip lever 3 to rotate, thereby pushing the inner handle 82 to rotate. The operating mechanism 11 realizes the tripping action. At this time, the second micro switch 22 can stop the motor 7 after detecting that the inner handle 82 has rotated to the correct position.

[0036] 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. An ultra-thin remote control circuit breaker, comprising a top cover (1) and a base (2), characterized in that: The base (2) is equipped with a driven gear (8), a sector gear (81) is installed in the middle of the front of the driven gear (8), a gear boss (83) is installed on the back of the driven gear (8), a tripping rod (3) is installed in the base (2) near the gear boss (83), an inner handle (82) is provided on one side of the front of the driven gear (8), an operating mechanism (11) is connected to one end of the inner handle (82), and the other end of the inner handle (82) meshes with the sector gear (81) through the sector teeth. A helical gear (9) is provided above the driven gear (8), a driving gear (91) is installed in the middle of the helical gear (9), and the driving gear (91) meshes with the driven gear (8). A button (4) is connected to the top side of the inner handle (82) through a connecting rod (6). The base (2) has a negative terminal clamp (23) and a positive terminal clamp (24) installed at one end of its interior. The base (2) has a negative terminal clamp (29) and a positive terminal clamp (210) installed at the other end of its interior. The positive terminal clamp (24) is connected to the positive terminal clamp (210) through a positive terminal connecting plate (25). The negative terminal clamp (23) is connected to one end of the coil below the operating mechanism (11). The inner end of the negative terminal clamp (29) is connected to a shunt (27) through a flexible connector (28). The bottom end of the shunt (27) is connected to a U-shaped stationary contact (26). The upper end of the U-shaped stationary contact (26) is provided with an arc-extinguishing chamber (12). The shunt (27) is located in the middle of the arc-extinguishing chamber (12) and the signal terminal (10). A circuit board (13) is also installed on the inner side of the base (2), and a signal terminal (10) is installed at one end of the circuit board (13).

2. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: The trip lever (3), driven gear (8), helical gear (9), and inner handle (82) are all mounted in the base (2) via a rotating shaft.

3. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: The base (2) is equipped with a motor (7), and the output shaft of the motor (7) is equipped with a worm (71), which is connected to the outside of the helical gear (9).

4. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: A first micro switch (21) is installed below the driven gear (8), and a second micro switch (22) is installed below the inner handle (82).

5. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: The button (4) is provided with a buckle (5) on its top.

6. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: The operating mechanism (11) can control the contact and separation of the moving contact and the stationary contact to realize the switching on and off of the circuit.

7. The ultra-thin remote control circuit breaker according to claim 1, characterized in that: One end of the base (2) is provided with a negative terminal connection hole (211), a negative terminal unloading groove (212), a positive terminal connection hole (213), and a positive terminal unloading groove (214). The negative terminal connection hole (211) is arranged adjacent to the button (4). The negative terminal unloading groove (212) is located at the lower end of the negative terminal connection hole (211). The positive terminal connection hole (213) is located at the lower end of the negative terminal unloading groove (212). The positive terminal unloading groove (214) is located at the lower end of the positive terminal connection hole (213).

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