CN212542295U

CN212542295U - Under-voltage reclosing circuit breaker is crossed to self-resuming formula

Info

Publication number: CN212542295U
Application number: CN202020849032.XU
Authority: CN
Inventors: 朱建新
Original assignee: SHANGHAI JINXIN ELECTRONIC Ltd
Current assignee: SHANGHAI JINXIN ELECTRONIC Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-02-12
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses an undervoltage reclosing circuit breaker is crossed to self-resuming formula, include the shell body, control handle and coincidence floodgate mechanism, one side of shell body is provided with controls the handle, and the one end of shell body is provided with coincidence floodgate mechanism, and the louvre has been seted up to one side of shell body, and the top of louvre is connected with the dust board, and the louvre is close to the inside one side of shell body and is connected with the dust screen, and the upper and lower end of shell body is connected with the connection terminal respectively. This under-voltage reclosing circuit breaker is crossed to self-resuming formula, the louvre has been seted up through one side of shell body, the louvre be close to the inside one side of shell body and be connected with the dust screen, improve the radiating effect in dirt-proof, the upper and lower end of shell body is connected with the connection terminal respectively, the connection terminal is connected with circuit board and relay through the wire, rational in infrastructure, set up under-voltage control subassembly and residual current control subassembly on the circuit board, take place excessive pressure or under-voltage fault through crossing under-voltage control subassembly detection voltage.

Description

Under-voltage reclosing circuit breaker is crossed to self-resuming formula

Technical Field

The utility model relates to a circuit breaker technical field specifically is an undervoltage reclosing circuit breaker is crossed to self-resuming formula.

Background

According to the requirements of the electrical installation specifications of residential buildings, each family needs to be provided with a residual current circuit breaker (RCBO) and a self-recovery Overvoltage and Undervoltage Protector (OUPA). The earth leakage protection circuit breaker has a circuit breaker and an earth leakage protection function, and breaks a main circuit when earth leakage or insulation fault occurs in the main circuit. The self-recovery overvoltage and undervoltage protector can automatically detect the voltage of a line, can automatically cut off the power when the overvoltage and the undervoltage in the line exceed specified values, and can automatically close the circuit when the voltage in the line recovers to be normal. What adopt at present is that earth leakage protection circuit breaker and self-resuming formula cross the mode that undervoltage protection ware two independent products make up and use, connect through the wire, independent work between the two does not have the cooperation relation each other, and the integrated level is poor, and is with high costs, and installs inconveniently. In addition, under this kind of using-way, earth leakage protection circuit breaker takes 3 units, and the undervoltage protection ware is crossed to the self-recovery formula takes 2 units, takes 5 units in total, has occupied too much space in the distribution box, has influenced the quantity of other branch return circuits in the distribution box.

Although the existing self-recovery type overvoltage and undervoltage protector can cut off a circuit through a motor under overvoltage and undervoltage conditions, the self-recovery type overvoltage and undervoltage protector cannot protect the circuit under the conditions of voltage loss and high voltage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an undervoltage reclosing circuit breaker is crossed to self-resuming formula has the improvement radiating effect, and is rational in infrastructure, has integrated and integrated the function of undervoltage protection ware to earth leakage protection circuit breaker and self-resuming formula, and simple structure just installs big electric capacity, is the circuit power supply under high pressure and the decompression condition, and protection circuit's advantage has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an under-voltage reclosing circuit breaker is crossed to self-resuming formula, includes the shell body, controls handle and reclosing mechanism, one side of shell body is provided with controls the handle, and the one end of shell body is provided with reclosing mechanism, and the louvre has been seted up to one side of shell body, and the top of louvre is connected with the dust board, and the louvre is close to the inside one side of shell body and is connected with the dust screen, and the upper and lower end of shell body is connected with the connection terminal respectively, and the connection terminal is connected with circuit.

Preferably, the reclosing mechanism comprises a motor, a transmission gear and a handle gear, the output end of the motor is fixedly connected with a rotating shaft, a worm is connected to the rotating shaft and meshed with the transmission gear, the transmission gear comprises a first gear and a second gear, the axle centers of the first gear and the second gear are fixedly connected, the second gear is meshed with the handle gear, and the handle gear is connected with the control handle.

Preferably, the reclosing mechanism further comprises a tripping device, and the tripping device is connected with one side of the handle gear.

Preferably, be provided with big electric capacity, cross undervoltage control assembly, residual current control assembly and singlechip on the circuit board, the singlechip respectively with big electric capacity, cross undervoltage control assembly, residual current control assembly electric connection.

Preferably, cross the undervoltage control assembly including crossing undervoltage detecting element, crossing undervoltage dropout drive unit and reclosing drive unit, cross undervoltage detecting element respectively with cross undervoltage dropout drive unit and reclosing drive unit electric connection, the residual current control assembly includes test circuit, residual current detecting element and residual current action the control unit.

Preferably, the test circuit, the residual current detection unit and the residual current operation control unit are sequentially connected, the residual current operation control unit and the overvoltage and undervoltage tripping driving unit are respectively electrically connected with the tripping device, and the test circuit is electrically connected with the power circuit.

Preferably, the reclosing drive unit is electrically connected with the motor.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the self-recovery overvoltage and undervoltage reclosing circuit breaker has the advantages that the radiating hole is formed in one side of the outer shell, the dustproof net is connected to one side of the radiating hole close to the inner part of the outer shell, the radiating effect is improved while the dustproof effect is achieved, the upper end and the lower end of the outer shell are respectively connected with the wire holder, the wire holder is connected with the circuit board and the relay through the conducting wires, the structure is reasonable, the overvoltage and undervoltage control assembly and the residual current control assembly are arranged on the circuit board, overvoltage or undervoltage faults are detected through the overvoltage and undervoltage control assembly, the tripping device is driven to trip and trip through the overvoltage and undervoltage tripping driving unit, the residual current control assembly detects that the residual current value of the power circuit is larger than the tripping threshold current value, the motor is controlled to trip, the functions of the leakage protection circuit breaker and the self-recovery overvoltage and under, and a protection circuit.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a view showing the internal structure of the outer casing of the present invention;

FIG. 3 is a view showing the structure of the dust screen of the present invention;

fig. 4 is a mounting structure diagram of the reclosing mechanism of the utility model;

FIG. 5 is a view of the structure of the handle gear of the present invention;

FIG. 6 is a diagram of a circuit board structure according to the present invention;

fig. 7 is a circuit block diagram of the present invention.

In the figure: 1. an outer housing; 11. heat dissipation holes; 12. a dust guard; 13. a dust screen; 14. a wire holder; 15. a relay; 2. a control handle; 3. a reclosing mechanism; 31. a motor; 311. a rotating shaft; 312. a worm; 32. a transmission gear; 321. a first gear; 322. a second gear; 33. a handle gear; 34. a trip device; 4. a circuit board; 41. a large capacitance; 42. an over-voltage and under-voltage control component; 421. an over-voltage and under-voltage detection unit; 422. an over-voltage and under-voltage tripping driving unit; 423. a reclosing drive unit; 43. a residual current control component; 431. testing the loop; 432. a residual current detection unit; 433. a residual current operation control unit; 44. and a single chip microcomputer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a self-recovery overvoltage/undervoltage reclosing circuit breaker, comprising an outer casing 1, an operating handle 2 and a reclosing mechanism 3, wherein the operating handle 2 is disposed on one side of the outer casing 1, the reclosing mechanism 3 is disposed on one end of the outer casing 1, a heat dissipation hole 11 is disposed on one side of the outer casing 1, the upper and lower sides of the heat dissipation hole 11 are inclined surfaces, so that dust is not easily accumulated, a dust guard 12 is connected above the heat dissipation hole 11, the dust guard 12 can reduce dust entering the heat dissipation hole 11, a dust screen 13 is connected to one side of the heat dissipation hole 11 close to the inside of the outer casing 1, the dust screen 13 can prevent dust from entering the outer casing 1, a recess is disposed on one side of the outer casing 1 close to the dust screen 13, when the circuit breaker is installed, the position of the outer casing 1 close, the wire holder 14 is connected to the circuit board 4 and the relay 15 through a wire, and the relay 15 is electrically connected to the circuit board 4.

Referring to fig. 4-5, the reclosing mechanism 3 includes a motor 31, a transmission gear 32 and a handle gear 33, an output end of the motor 31 is fixedly connected with a rotating shaft 311, the rotating shaft 311 is connected with a worm 312, the motor 31 rotates to drive the rotating shaft 311 to rotate, the worm 312 is engaged with the transmission gear 32, a structure in which the worm 312 is engaged with the transmission gear 32 has a self-locking property, the structure is more stable, the transmission gear 32 includes a first gear 321 and a second gear 322, the worm 312 drives the first gear 321 to rotate, axial cores of the first gear 321 and the second gear 322 are fixedly connected, when the first gear 321 rotates, the second gear 322 rotates synchronously with the first gear 321, the second gear 322 is engaged with the handle gear 33, the handle gear 33 is connected with the control handle 2, the reclosing mechanism 3 further includes a tripping device 34, and the tripping device 34 is connected with one side of the handle gear 33.

Referring to fig. 6-7, a large capacitor 41, an overvoltage/undervoltage control assembly 42, a residual current control assembly 43, and a single chip 44 are disposed on the circuit board 4, the single chip 44 is electrically connected to the large capacitor 41, the overvoltage/undervoltage control assembly 42, and the residual current control assembly 43, respectively, the single chip 44 performs data analysis and processing, the overvoltage/undervoltage control assembly 42 includes an overvoltage/undervoltage detection unit 421, an overvoltage/undervoltage trip driving unit 422, and a reclosing driving unit 423, the overvoltage/undervoltage detection unit 421 is electrically connected to the overvoltage/undervoltage trip driving unit 422 and the reclosing driving unit 423, when detecting that the voltage has an overvoltage or undervoltage fault, the overvoltage/undervoltage trip driving unit 421 sends an overvoltage/undervoltage trip driving signal, the overvoltage/undervoltage trip driving unit 422 drives the trip unit 34 to trip and trip, and when the voltage recovers to be normal, the reclosing driving unit, the reclosing drive unit 423 controls the motor 31 to close, the residual current control assembly 43 comprises a test loop 431, a residual current detection unit 432 and a residual current operation control unit 433, the test loop 431, the residual current detection unit 432 and the residual current operation control unit 433 are sequentially connected, the residual current operation control unit 433 and the over-voltage and under-voltage tripping drive unit 422 are respectively electrically connected with the tripping device 34, the test loop 431 is electrically connected with the power circuit, the test loop 431 converts an alternating current signal into a low-voltage electrical signal and inputs the low-voltage electrical signal into the residual current detection unit 432, when the residual current value of the power circuit is detected to be larger than the tripping threshold value, the residual current detection unit 432 sends a residual current tripping drive signal, the residual current operation control unit 433 controls the driving tripping device 34 to trip, and under the over-voltage condition, the power circuit, the reclosing drive unit 423 controls the motor 31 to complete closing, the large capacitor 41 supplies power to the circuit under the condition of voltage loss, the single chip microcomputer 44 controls the tripping device 34 to complete locking, the switching power supply enters a protection state under the condition of high power, the large capacitor 41 supplies power to the circuit, and the single chip microcomputer 44 controls the tripping device 34 to realize quick tripping and complete protection.

The working process is as follows: when the device is used, the test loop 431 converts an alternating current signal into a low-voltage electrical signal, the low-voltage electrical signal is input into the residual current detection unit 432, when the residual current value of the power circuit is detected to be larger than the tripping threshold current value, the residual current detection unit 432 sends out a residual current tripping driving signal, the residual current action control unit 433 controls the tripping device 34 to trip, the power circuit can normally work under the over-voltage and under-voltage conditions, the reclosing driving unit 423 controls the motor 31 to complete the switching on, under the voltage loss conditions, the large capacitor 41 supplies power to the circuit, the single chip microcomputer 44 controls the tripping device 34 to complete the locking, under the high-voltage conditions, the switching power supply enters a protection state, the large capacitor 41 supplies power to the circuit, the single chip microcomputer 44 controls the tripping device 34 to realize the quick tripping and complete the protection, the output end of the motor 31 is fixedly connected with the, the rotating shaft 311 is driven to rotate, the structure that the worm 312 is meshed and connected with the transmission gear 32 has self-locking performance, the structure is more stable, when the first gear 321 rotates, the second gear 322 rotates synchronously along with the first gear 321 to achieve switching-on or switching-off, the tripping device 34 is connected with one side of the handle gear 33, and switching-on and switching-off are controlled by the residual current action control unit 433.

In summary, the following steps: the self-recovery overvoltage and undervoltage reclosing circuit breaker is characterized in that a heat dissipation hole 11 is formed in one side of an outer shell 1, a dustproof net 13 is connected to one side of the heat dissipation hole 11 close to the inner portion of the outer shell 1, the heat dissipation effect is improved while dust is prevented, a wire holder 14 is connected to the upper end and the lower end of the outer shell 1 respectively, the wire holder 14 is connected with a circuit board 4 and a relay 15 through a lead, the structure is reasonable, an overvoltage and undervoltage control assembly 42 and a residual current control assembly 43 are arranged on the circuit board 4, overvoltage or undervoltage faults are detected through the overvoltage and undervoltage control assembly 42, a tripping device 34 is driven to trip and trip through an overvoltage and undervoltage tripping driving unit 422, the residual current control assembly 43 detects that the residual current value of a power circuit is larger than a tripping threshold current value, a control motor 31 trips, the structure is simple, the large capacitor 41 is installed, and the circuit is powered and protected under the conditions of high voltage and voltage loss.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an undervoltage reclosing circuit breaker is crossed to self-resuming formula, includes shell body (1), operating handle (2) and reclosing mechanism (3), its characterized in that: one side of shell body (1) is provided with control handle (2), and the one end of shell body (1) is provided with coincidence floodgate mechanism (3), and louvre (11) have been seted up to one side of shell body (1), and the top of louvre (11) is connected with dust board (12), and one side that is close to shell body (1) inside of louvre (11) is connected with dust screen (13), and the upper and lower end of shell body (1) is connected with connection terminal (14) respectively, and connection terminal (14) are connected with circuit board (4) and relay (15) through the wire.

2. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 1, characterized in that: reclosing mechanism (3) are including motor (31), drive gear (32) and handle gear (33), the output fixedly connected with pivot (311) of motor (31), be connected with worm (312) on pivot (311), worm (312) and drive gear (32) meshing, drive gear (32) are including first gear (321) and second gear (322), first gear (321) and second gear (322) axle center position fixed connection, second gear (322) and handle gear (33) meshing, handle gear (33) are connected with control handle (2).

3. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 2, characterized in that: the reclosing mechanism (3) further comprises a tripping device (34), and the tripping device (34) is connected with one side of the handle gear (33).

4. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 1, characterized in that: the circuit board (4) is provided with a large capacitor (41), an overvoltage and undervoltage control assembly (42), a residual current control assembly (43) and a single chip microcomputer (44), and the single chip microcomputer (44) is electrically connected with the large capacitor (41), the overvoltage and undervoltage control assembly (42) and the residual current control assembly (43) respectively.

5. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 4, wherein: cross undervoltage control assembly (42) including crossing undervoltage detection unit (421), cross undervoltage dropout drive unit (422) and reclosing drive unit (423), cross undervoltage detection unit (421) respectively with cross undervoltage dropout drive unit (422) and reclosing drive unit (423) electric connection, residual current control assembly (43) are including test circuit (431), residual current detection unit (432) and residual current action control unit (433).

6. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 5, characterized in that: the testing circuit (431), the residual current detection unit (432) and the residual current action control unit (433) are sequentially connected, the residual current action control unit (433) and the overvoltage and undervoltage tripping driving unit (422) are respectively electrically connected with the tripping device (34), and the testing circuit (431) is electrically connected with the power circuit.

7. The self-recovery overvoltage and undervoltage reclosing circuit breaker according to claim 5, characterized in that: the reclosing drive unit (423) is electrically connected with the motor (31).