CN220691946U - Special circuit breaker of photovoltaic - Google Patents

Abstract

The utility model discloses a special photovoltaic breaker, which comprises a box body, a breaker body and a control circuit board, wherein the breaker body controls switching on and off through a switching-on and switching-off mechanism, the switching-on and switching-off mechanism comprises a motor, a connecting rod assembly and a switching-on and switching-off handle, the motor is installed in the box body, the output end of the motor is connected with a first gear, a second gear meshed with the first gear for transmission is rotatably installed in the box body through a rotating shaft, the first end of the connecting rod assembly is connected to the eccentric position of the second gear through a pin shaft, the second end of the connecting rod assembly is rotatably connected to the switching-on and switching-off handle, the upper end of the rotating shaft is connected with a manual lever, the upper end of the box body is provided with a limiting part for limiting the rotating angle of the manual lever, the other side of a rotor of the motor relative to the output end extends out of a motor shell, and an angle detection device is installed on the rotor, and the rotating angle of the motor is accurately controlled through matching of a single chip microcomputer and the angle detection device, so that damage to parts of the switching-on and switching-off mechanism caused by overlarge rotating angle of the motor can be prevented.

Description

Special circuit breaker of photovoltaic

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a special photovoltaic circuit breaker.

Background

The circuit breaker is a switching device which is used for a power distribution electrical appliance in a power grid, can be used for switching on, carrying and breaking current under normal circuit conditions, and can also be used for switching on, carrying for a certain time and breaking current under specified abnormal conditions (such as overload, short circuit, undervoltage and single-phase grounding faults). The electric operating mechanism is a special accessory of the molded case circuit breaker, and can be electrically closed, opened and re-buckled with the circuit breaker in a long distance after being matched with the circuit breaker so as to realize centralized and automatic control of the transmission and distribution network. Along with the development of human society, energy and environment become urgent problems to be solved by the survival and development of human beings at present, low-carbon economy has become a trend of global economy development, solar power generation is a new energy with clean and wide installation area, and is hopeful to realize low-price internet surfing, and along with the continuous expansion of the industrial scale of solar photovoltaic power generation, the special circuit breaker market of photovoltaic is coming to have good development opportunities. With the continuous development of the solar energy industry, large-sized solar photovoltaic power plants with installed capacity are also rapidly developed. There is also an increasing demand for controlling and protecting the performance of electrical appliances equipped in large solar photovoltaic power plants.

The existing special circuit breaker of photovoltaic includes bottom, well lid and upper cover, is equipped with the holding chamber between well lid and the upper cover, and display module is fixed to be set up in the holding chamber left side, and automatic closing mechanism sets up the right side in the holding chamber, and wherein display module includes upper end open-ended box body and passes through the lid of fastener fixed in box body upper end, is equipped with circuit board, display screen and other components and parts in the box body, because the box body adopts the fastener to be connected with the lid for display module's assembly is comparatively loaded down with trivial details, makes display module's maintenance also very loaded down with trivial details simultaneously.

The current automatic closing mechanism is like chinese patent (grant bulletin number CN 218241744U), and it includes motor, clutch subassembly, the connecting rod that cooperates and be used for driving the circuit breaker handle to carry out the divide-shut brake action, manual operation subassembly of setting in well lid, clutch subassembly include the fixed disk, set up ratchet holding ring on the fixed disk, set up the apron on the ratchet holding ring, fixed disk, ratchet holding ring and apron between be formed with the holding chamber, the holding intracavity be provided with the pivot linkage complex ratchet of motor, the ratchet holding ring in be provided with ratchet matched with ratchet, ratchet and ratchet holding ring between be provided with the spring, but the automatic closing mechanism of foretell can't accurate control motor's rotation angle when the operation, if rotation angle is too big, easily cause the junction damage of divide-shut brake handle, divide-shut brake handle and connecting rod junction and connecting rod and clutch, and the junction of connecting rod, and then influence the life of circuit breaker.

Disclosure of Invention

The utility model aims to provide a special photovoltaic breaker, which can prevent damage to parts of a switching-on and switching-off mechanism caused by overlarge rotation angle of a motor by matching a singlechip with an angle detection device to accurately control the rotation angle of the motor.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a special circuit breaker of photovoltaic, includes box body, circuit breaker body and control circuit board, and the circuit breaker body passes through divide-shut brake mechanism control divide-shut brake, divide-shut brake mechanism includes motor, link assembly and divide-shut brake handle, and motor fixed mounting is in the box body, and the output of motor is connected with first gear, installs the second gear with first gear engagement transmission rotationally through the pivot in the box body, and link assembly's first end is through the eccentric position of round pin hub connection at the second gear, and link assembly's second end rotationally connects in the divide-shut brake handle, and the upper end of pivot is connected with the manual lever, the rotor of motor stretches out in the motor casing for the opposite side of output, installs angle detection device on the rotor.

Further, the angle detection device comprises a rotating disc connected to the rotor and a fixed disc fixed on the box body or the motor casing and corresponding to the rotating disc, a magnet block is arranged on the rotating disc, a Hall element is arranged on the fixed disc, and the Hall element is connected with a singlechip arranged on the control circuit board.

Further, angle detection device is including connecting the rotary disk on the rotor and setting up the infrared transceiver at the rotary disk side, and infrared transceiver is connected with the singlechip on the control circuit board, a plurality of circumference setting's access holes have been seted up to the periphery of rotary disk, and when the rotary disk rotated to the access hole when aiming at infrared emission end, the signal that infrared emission end was launched was received by infrared receiving end through the access hole, and when the rotary disk rotated to access hole and infrared emission end stagger, the signal that infrared emission end was launched was separated, and infrared receiving end can't receive end signal this moment.

Further, the upper end of box body is equipped with the spacing portion of restriction manual pole turned angle, the manual pole sets up the upper end of box body, and the manual pole includes cap body portion and body of rod portion, spacing portion is including setting up first spacing post and the spacing post of second in cap body portion periphery, transversely insert on the cap body portion and be equipped with the bolt, limit the turned angle of manual pole through bolt and the cooperation of first spacing post and the spacing post of second.

Further, the box body comprises a bottom box, a middle box and an upper box which are detachably connected into a whole, a containing cavity is formed in the upper box and the middle box, a display module is arranged in the containing cavity, and an avoidance port is formed in the upper end face of the upper box corresponding to the display module.

Further, the shell of display module includes casing and cap, be equipped with telescopic elasticity card foot around the casing, be equipped with on the cap with the card foot portion joint complex draw-in groove of elasticity card foot, the outside of elasticity card foot is provided with button portion, be equipped with the button groove that supplies button portion to stretch out on the casing, the inboard that the casing corresponds the elasticity card foot is equipped with the backup pad, is equipped with the elastic component that drives elasticity card foot towards outside removal in the backup pad.

Further, the upper end of the shell is provided with a frame part, and the shell cover is provided with a ring groove matched with the frame part in a guiding way.

Further, the supporting plate is provided with a guide hole, and the elastic clamping foot is provided with a guide column matched with the guide hole in a guiding way.

In summary, the utility model has the following beneficial effects:

the utility model provides a special circuit breaker of photovoltaic, through the rotation angle of singlechip and the accurate control motor of angle detection device cooperation, on the other hand, through setting up first spacing post and the spacing post of second in the periphery of the corresponding manual pole of box body, through the bolt of manual pole and the spacing cooperation of first spacing post and second realize the rotation angle that the machinery prescribes a limit to manual pole, and then can prevent that motor rotation angle from being too big and cause the spare part damage of divide-shut brake mechanism.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a schematic structural view of the opening and closing mechanism of the present utility model.

Fig. 4 is a schematic structural view of a first embodiment of the angle detection device of the present utility model.

Fig. 5 is a schematic structural view of a second embodiment of the angle detection device of the present utility model.

Fig. 6 is a schematic structural view of a display module according to the present utility model.

Fig. 7 is a cross-sectional view of a display module of the present utility model.

Fig. 8 is an enlarged view at a of the present utility model.

In the figure: 10. a case body; 11. a bottom box; 12. a middle box; 13. loading the box; 131. a first limit post; 132. the second limit column; 20. a switching-on and switching-off mechanism; 21. a motor; 22. a connecting rod assembly; 23. an opening and closing handle; 24. a first gear; 25. a second gear; 251. a rotating shaft; 252. a pin shaft; 26. a manual lever; 261. a cap body; 262. a rod body; 263. a plug pin; 30. an angle detection device; 31. a rotating disc; 311. a passage opening; 32. a fixed plate; 33. a magnet block; 34. a Hall element; 35. an infrared transceiver; 351. an infrared emission end; 352. an infrared receiving end; 40. a display module; 41. a housing; 411. an elastic clamping foot; 4111. a foot clamping part; 412. a button part; 413. a button groove; 414. a support plate; 415. an elastic member; 416. a frame portion; 417. a guide hole; 418. a guide post; 42. a cover; 421. a clamping groove; 422. and a ring groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-8, a special circuit breaker for photovoltaic comprises a box body 10, a circuit breaker body and a control circuit board, wherein the circuit breaker body controls switching on/off through a switching-on/off mechanism 20, and the circuit breaker body belongs to the prior art and is not described in detail in the utility model.

The opening and closing mechanism 20 comprises a motor 21, a connecting rod assembly 22 and an opening and closing handle 23, the motor 21 is fixedly arranged in the box body 10, the output end of the motor 21 is connected with a first gear 24, a second gear 25 which is meshed with the first gear 24 and is driven by the first gear is rotatably arranged in the box body 10 through a rotating shaft 251, the first end of the connecting rod assembly 22 is connected to the eccentric position of the second gear 25 through a pin shaft 252, the second end of the connecting rod assembly 22 is rotatably connected to the opening and closing handle 23, specifically, the eccentric position of the upper end face of the second gear 25 is provided with a pin shaft 252, the connecting rod assembly 22 comprises a first connecting rod and a second connecting rod hinged to the first connecting rod, the first connecting rod is hinged to the pin shaft 252, the second connecting rod is rotatably connected with the opening and closing handle 23, for example, a plug shaft is arranged on the second connecting rod, a jack which is matched with the plug shaft is arranged on the opening and closing handle 23, the plug shaft can rotate in the jack, a strip which is matched with the width of the opening and closing handle 23 is arranged at the position of the box body 10, and drives the first gear 24 and the second gear 23 to rotate, and the opening and closing handle 23 to move, and the opening and closing mechanism 23.

The upper end of the rotating shaft 251 is connected with a manual lever 26, the other side of the rotor of the motor 21 relative to the output end extends out of the motor 21 shell, and an angle detection device 30 is arranged on the rotor.

First embodiment of the angle detection device 30: the angle detection device 30 comprises a rotating disc 31 connected to the rotor and a fixed disc 32 fixed on the box body 10 or on the motor 21 shell and corresponding to the rotating disc 31, wherein a magnet block 33 is arranged on the rotating disc 31, a Hall element 34 is arranged on the fixed disc 32, the Hall element 34 is connected with a singlechip arranged on a control circuit board, the rotating disc 31 and the magnet block 33 arranged on the rotating disc 31 are driven to rotate when the rotor of the motor 21 rotates, the rotating magnet block 33 triggers the Hall element 34, and the rotating angle of the rotor of the motor 21 is detected through the cooperation of the Hall element 34 and the magnet block 33.

Second embodiment of the angle detection device 30: the angle detection device 30 includes a rotating disc 31 connected to the rotor and an infrared transceiver 35 disposed at a side end of the rotating disc 31, the infrared transceiver 35 is connected to a single chip microcomputer on the control circuit board, a plurality of circumferentially disposed channel ports 311 are formed in an outer periphery of the rotating disc 31, when the rotating disc 31 rotates until the channel ports 311 align with the infrared transmitting ends 351, signals emitted by the infrared transmitting ends 351 are received by the infrared receiving ends 352 through the channel ports 311, when the rotating disc 31 rotates until the channel ports 311 are staggered with the infrared transmitting ends 351, signals emitted by the infrared transmitting ends 351 are blocked, at this time, the infrared receiving ends 352 cannot receive the signals, the number of signals received by the infrared receiving ends 352 is used for feeding back a rotation angle of the rotor, and then the rotation angle of the rotor of the motor 21 is controlled by the single chip microcomputer.

The upper end of box body 10 is equipped with the spacing portion of restriction manual lever 26 turned angle, manual lever 26 sets up the upper end of box body 10, and manual lever 26 includes cap body 261 and body of rod portion 262, spacing portion is including setting up first spacing post 131 and the spacing post 132 of second in cap body 261 periphery, transversely insert on cap body 261 and be equipped with bolt 263, limit the turned angle of manual lever 26 through bolt 263 and the cooperation of first spacing post 131 and the spacing post 132 of second, through this setting for rotate manual lever 26 in the settlement scope of operator of being convenient for, prevent to cause the spare part damage of divide-shut brake mechanism 20 because of manual lever 26 turned angle is too big.

The box body 10 comprises a bottom box 11, a middle box 12 and an upper box 13 which are detachably connected into a whole, a containing cavity is formed between the upper box 13 and the middle box 12, a display module 40 is arranged in the containing cavity, an avoidance port is formed in the position, corresponding to the display module 40, of the upper end face of the upper box 13, and the state of the circuit breaker can be displayed through the display module 40.

The shell of the display module 40 comprises a shell 41 and a shell cover 42, telescopic elastic clamping feet 411 are arranged around the shell 41, clamping grooves 421 which are matched with the clamping feet 4111 of the elastic clamping feet 411 in a clamping mode are formed in the shell cover 42, button portions 412 are arranged on the outer sides of the elastic clamping feet 411, button grooves 413 which are used for enabling the button portions 412 to extend out are formed in the shell 41, supporting plates 414 are arranged on the inner sides of the shell 41 corresponding to the elastic clamping feet 411, elastic pieces 415 which drive the elastic clamping feet 411 to move outwards are arranged on the supporting plates 414, during assembly, the shell cover 42 is only required to be arranged at the upper end of the shell 41, the elastic clamping feet 411 on two sides of the shell 41 are pressed and then move inwards until the shell cover 42 is covered in place, the clamping feet 4111 of the elastic clamping feet 411 are clamped in the clamping grooves 421, then the shell cover 42 is covered at the upper end of the shell 41, when the shell cover 42 is required to be detached from the shell 41, two groups of buttons on one side are pressed first, the elastic clamping feet 411 on the side move inwards and are separated from the clamping grooves 421, the shell cover 42 on the side is pushed up, the other side is pushed down by the elastic clamping feet 411, the elastic clamping feet 411 on the side is slightly, the other side is slightly pushed down corresponding to the shell cover 41, the shell cover 41 is moved to the shell cover 40, and the assembly is convenient to detach the shell module, and the assembly and can be assembled and detached from the shell cover 40.

The upper end of the shell 41 is provided with a frame portion 416, the shell cover 42 is provided with a ring groove 422 in guiding fit with the frame portion 416, specifically, the frame portion 416 surrounds the upper end of the shell 41, the ring groove 422 of the shell cover 42 is aligned with the frame portion 416 of the shell 41 when the shell is closed, and the shell cover 42 is used for guiding and limiting the shell cover 42 to prevent displacement after closing.

The backup pad 414 is equipped with the guiding hole 417, elasticity card foot 411 be equipped with guiding hole 417 direction complex guide post 418, when pressing the button, elasticity card foot 411 can be along hole one side removal near backup pad 414, through the setting of guide post 418 and guiding hole 417 for it is spacing to lead the removal of elasticity card foot 411, prevents that it from taking place the off normal in the pressing process.

In summary, the utility model has the following beneficial effects:

the utility model provides a special circuit breaker of photovoltaic, through the rotation angle of singlechip and the accurate control motor 21 of angle detection device 30 cooperation, on the other hand, through setting up first spacing post 131 and the spacing post 132 of second in the periphery of the corresponding manual pole 26 of box body 10, realize mechanically limiting manual pole 26's rotation angle through the bolt 263 of manual pole 26 and the spacing cooperation of first spacing post 131 and second, and then can prevent that motor 21 rotation angle from being too big and cause the spare part damage of divide-shut brake mechanism 20.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (8)

1. The utility model provides a special circuit breaker of photovoltaic, includes box body (10), circuit breaker body and control circuit board, and the circuit breaker body passes through divide-shut brake mechanism (20) control divide-shut brake, its characterized in that: the opening and closing mechanism (20) comprises a motor (21), a connecting rod assembly (22) and an opening and closing handle (23), wherein the motor (21) is fixedly arranged in a box body (10), a first gear (24) is connected with the output end of the motor (21), a second gear (25) meshed with the first gear (24) and driven by the first gear is rotatably arranged in the box body (10) through a rotating shaft (251), the first end of the connecting rod assembly (22) is connected to the eccentric position of the second gear (25) through a pin shaft (252), the second end of the connecting rod assembly (22) is rotatably connected to the opening and closing handle (23), a manual lever (26) is connected to the upper end of the rotating shaft (251), the rotor of the motor (21) extends out of the motor shell relative to the other side of the output end, and an angle detection device (30) is arranged on the rotor.

2. A photovoltaic dedicated circuit breaker according to claim 1, characterized in that: the angle detection device (30) comprises a rotating disc (31) connected to the rotor and a fixed disc (32) fixed on the box body (10) or on the motor casing and corresponding to the rotating disc (31), wherein magnet blocks (33) are arranged on the rotating disc (31), hall elements (34) are arranged on the fixed disc (32), and the Hall elements (34) are connected with a singlechip arranged on the control circuit board.

3. A photovoltaic dedicated circuit breaker according to claim 1, characterized in that: the angle detection device (30) comprises a rotating disc (31) connected to a rotor and an infrared transceiver (35) arranged at the side end of the rotating disc (31), the infrared transceiver (35) is connected with a single chip microcomputer on a control circuit board, a plurality of circumferentially arranged channel ports (311) are formed in the periphery of the rotating disc (31), when the rotating disc (31) rotates to the channel ports (311) to align with the infrared transmitting ends (351), signals transmitted by the infrared transmitting ends (351) are received by the infrared receiving ends (352) through the channel ports (311), and when the rotating disc (31) rotates to the channel ports (311) and the infrared transmitting ends (351) are staggered, the signals transmitted by the infrared transmitting ends (351) are blocked, and at the moment, the signals at the infrared receiving ends (352) cannot be received.

4. A photovoltaic dedicated circuit breaker according to claim 1, characterized in that: the upper end of box body (10) is equipped with the spacing portion of restriction manual pole (26) turned angle, manual pole (26) set up the upper end of box body (10), and manual pole (26) are including cap body portion (261) and body of rod portion (262), spacing portion is including setting up first spacing post (131) and second spacing post (132) in cap body portion (261) periphery, transversely be inserted on cap body portion (261) and be equipped with bolt (263), limit the turned angle of manual pole (26) through bolt (263) and first spacing post (131) and the cooperation of second spacing post (132).

5. A photovoltaic dedicated circuit breaker according to claim 1, characterized in that: the box body (10) comprises a bottom box (11), a middle box (12) and an upper box (13) which are detachably connected into a whole, a containing cavity is formed in the upper box (13) and the middle box (12), a display module (40) is arranged in the containing cavity, and an avoidance port is formed in the upper end face of the upper box (13) corresponding to the position of the display module (40).

6. A photovoltaic dedicated circuit breaker according to claim 5, characterized in that: the shell of display module (40) includes casing (41) and cap (42), be equipped with telescopic elasticity card foot (411) around casing (41), be equipped with on cap (42) with elasticity card foot (411) card foot portion (4111) joint complex draw-in groove (421), the outside of elasticity card foot (411) is provided with button portion (412), be equipped with button groove (413) that supply button portion (412) to stretch out on casing (41), the inboard that casing (41) correspond elasticity card foot (411) is equipped with backup pad (414), is equipped with on backup pad (414) and orders about elasticity card foot (411) to outside movable elastic component (415).

7. The photovoltaic-dedicated circuit breaker according to claim 6, characterized in that: the upper end of the shell (41) is provided with a frame part (416), and the shell cover (42) is provided with a ring groove (422) in guiding fit with the frame part (416).

8. The photovoltaic-dedicated circuit breaker according to claim 6, characterized in that: the supporting plate (414) is provided with a guide hole (417), and the elastic clamping foot (411) is provided with a guide post (418) in guide fit with the guide hole (417).