CN212365893U

CN212365893U - Automatic opening device of circuit breaker

Info

Publication number: CN212365893U
Application number: CN202021094119.7U
Authority: CN
Inventors: 朱成刚
Original assignee: Yiwu Deyi Internet Of Things Technology Co ltd
Current assignee: Yiwu Deyi Internet Of Things Technology Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-01-15
Anticipated expiration: 2030-06-13

Abstract

The utility model provides an automatic separating brake device of circuit breaker, which belongs to the technical field of low-voltage circuit breaker control, the utility model discloses a support frame and base can be dismantled and connected, the one end swing joint of pull rod and push-pull mechanism, limit stop sets up near separating brake mechanism one side apart from a plurality of millimeters departments of pull rod at the pull rod, and fix on the base, the other end of push-pull mechanism and striking mechanism can be dismantled and connected, the rotatable cup joint of stand that limit adjustable mechanism one end and fix on the base, the hand setting passes the arc strip hole of seting up on the base and inserts in the separating brake hole, the external diameter of hand setting suits with the internal diameter of separating brake hole; communication interface and microprocessor electricity are connected, microprocessor and drive circuit electric connection, drive circuit and coil electric connection, the utility model discloses compare in the automatic separating brake device of current circuit breaker, can carry out the thing networking transformation to current traditional circuit breaker, strengthen the real time monitoring to it, in addition, this device is simple structure and separating brake operating time very short advantage in addition.

Description

Automatic opening device of circuit breaker

Technical Field

The utility model relates to a technical field is controlled to the low voltage circuit breaker, especially relates to an automatic separating brake device of circuit breaker.

Background

In civil and industrial electricity, the circuit breaker is widely used, and due to frequent occurrence of circuit faults, the circuit needs to be effectively cut off in time so as to prevent accidents caused by the circuit faults, so that higher requirements on quick breaking and remote operation capacity of the circuit breaker are provided.

Chinese patent CN201610169276.1 discloses a switching on/off operation control device, which comprises a housing, a motor, a driving gear, a handle turntable and a trip rod; a pressing block on the end face of the driving gear can be matched with one end of the trip rod, the handle turntable is used for arranging a handle inner shaft, a handle connecting rod of the handle turntable is positioned in a containing groove of the handle gear, the motor rotates in one direction, the handle gear drives the handle turntable to rotate for automatic switching-on, the motor rotates in the reverse direction to drive the handle gear to return to an initial position, and the handle turntable can freely rotate in the containing groove for manual switching-on and switching-off; the motor further rotates reversely, the pressing block can drive one end of the tripping rod, the tripping linkage shaft drives the tripping linkage structure in the breaker to trip to realize automatic brake opening and keep a brake opening state, functions of automatic brake opening and closing, manual brake opening and closing after automatic brake closing, manual brake closing after automatic brake opening and the like can be realized, the structure is simple, the synchronous linkage of the brake opening and closing is good, the brake opening speed is high, but the scheme also has the defects that the corresponding speed of the brake opening action is low, the mechanical impact of mechanism parts is large, the mechanism is easy to damage and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide an automatic separating brake device of circuit breaker.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

an automatic opening device of a circuit breaker comprises a base, a shell cover, a microprocessor, a communication interface, a driving mechanism, an opening mechanism, a push-pull mechanism and a limit stop block, wherein a support frame of the driving mechanism is detachably connected with the base; the communication interface is electrically connected with the microprocessor, the microprocessor is electrically connected with the driving circuit, and the driving circuit is electrically connected with the coil.

In foretell automatic separating brake device of circuit breaker, actuating mechanism includes I-shaped frame, coil, support frame and reciprocating motion mechanism, and the bottom plate of support frame is equipped with a plurality of mounting holes and suits with the position of setting up the erection column on the base, and the support frame both sides are equipped with the baffle respectively, and two baffles are fixed mounting respectively on the relative both sides of bottom plate, and are located the homonymy of bottom plate.

In the automatic opening device of the circuit breaker, the middle part of the baffle is provided with the 1# magnetic circuit hole and the 2# magnetic circuit hole, the diameter of the 1# magnetic circuit hole is larger than that of the 2# magnetic circuit hole, and the two ends of the baffle, which are far away from one side of the bottom plate, are respectively provided with the mounting grooves.

In the automatic opening device of the circuit breaker, the coil is detachably wound on a coil support of the I-shaped frame, the coil support is a hollow cylinder, coil protection plates are respectively fixed on two sides of the coil support, a through hole matched with the coil support is formed in the middle of each coil protection plate, and fixing blocks are respectively arranged on the top parts of the two coil protection plates on the same side far away from the coil; the I-shaped frame is placed in the supporting frame, the 1# magnetic circuit hole faces one side of the opening mechanism, the fixing block is matched with the mounting groove, and the center lines of the 1# magnetic circuit hole, the 2# magnetic circuit hole and the through hole are overlapped.

In foretell automatic separating brake device of circuit breaker, reciprocating motion mechanism includes the pull rod, iron core and spring, the diameter of spring is greater than the diameter in 2# magnetic circuit hole, the iron core is kept away from pull rod one end and is equipped with the bellying that the diameter is less than the iron core, the diameter of spring is greater than the diameter of bellying and is less than the diameter of iron core, spring one side cover is established at the bellying, reciprocating motion mechanism sets up in the coil pillar, the opposite side and the 2# magnetic circuit hole place baffle of spring contact, the iron core is close to limit stop one side and pull rod fixed connection, when the spring is not compressed, the side that the iron core is close to pull rod one end and the side parallel and level that the support frame is close to limit stop, the diameter in 1# magnetic.

In the automatic opening device of the circuit breaker, one end, far away from the iron core, of the pull rod is provided with the protruding portion detachably connected with the pull rod, and when the spring is not compressed and the reciprocating mechanism is arranged in the coil support, the protruding portion is in contact with the limit stop.

In the automatic opening device of the circuit breaker, the push-pull mechanism comprises a transmission rod and a pull ring, the pull ring is arranged on one side, close to the coil, of the transmission rod, the other side of the transmission rod and one end, far away from the poking needle, of the poking mechanism are detachably connected, the transmission rod is flexibly and fixedly connected with the pull ring, the pull ring is sleeved on the pull rod, and the diameter of the pull ring is smaller than that of the protruding portion.

In foretell automatic separating brake device of circuit breaker, separating brake mechanism includes toggle mechanism and spacing adjustable mechanism, and spacing adjustable mechanism keeps away from stand one side and is equipped with the spacing hole of rectangular shape, and toggle mechanism keeps away from that the shifting needle one end runs through the spacing hole of rectangular shape and transfer line and keeps away from pull ring one end and can dismantle with spacing adjustable mechanism and be connected.

In the automatic opening device of the circuit breaker, the poking mechanism comprises a poking needle, a positioning block and a fastening device, the end, far away from the pull ring, of the limiting adjustable mechanism and the end, far away from the pull ring, of the transmission rod is arranged between the positioning block and the fastening device, and the fastening device is in threaded connection with one end of the poking needle.

In the automatic opening device of the circuit breaker, the heights of the support frame and the limit stop are matched with the height of the base.

Compared with the prior art, the utility model has the advantages of:

1. the automatic brake-separating device for the circuit breaker is designed, has quick response to brake-separating action, does not need the transmission of a motor and various gears, directly outputs signals by a microprocessor to electrify a coil, and immediately drives a push-pull mechanism and a brake-separating mechanism to act after the coil is electrified, so that the circuit breaker is separated from the brake, and the brake-separating action is very quick.

2. The utility model provides a technical scheme compares in current circuit breaker separating brake mechanism, and the connection of each part is reasonable, and mechanical shock is little, makes the life of this device strengthened greatly.

3. The volume of this device is less, and the range of application is wider, in addition, still is fit for very much using in the regulator cubicle that needs carry out automation and intelligent transformation, because the space in traditional regulator cubicle is very limited, consequently, the miniaturization of device just can hold more new equipment.

4. This device is applicable to and carries out intelligent transformation to traditional circuit breaker, and the separating brake of traditional circuit breaker can only rely on circuit breaker self characteristic to carry out the separating brake, can not carry out automatic control, and this device and the cooperation of traditional circuit breaker can make traditional circuit breaker insert thing networking systems.

Drawings

FIG. 1 is a schematic diagram of a brake release system;

FIG. 2 is a schematic view of the structure of the housing cover;

FIG. 3 is a schematic mechanical view of the support stand;

FIG. 4 is a schematic structural view of an I-shaped frame;

FIG. 5 is a schematic structural diagram of the opening mechanism;

FIG. 6 is a schematic view of the reciprocating mechanism;

FIG. 7 is a control system schematic;

fig. 8 is a schematic diagram of the circuit breaker configuration;

in the figure, a base 1, a shell cover 2, a microprocessor 3, a communication interface 4, a driving mechanism 5, a separating brake mechanism 6, a push-pull mechanism 7, a limit stop 8, a support frame 9, a pull rod 10, a toggle mechanism 11, a limit adjustable mechanism 12, a vertical column 13, a toggle pin 14, an arc-shaped strip-shaped hole 15, a circuit breaker 16, a separating brake hole 17, a coil 18, a reciprocating mechanism 19, an i-shaped frame 20, a mounting hole 21, a mounting column 22, a baffle plate 23, a bottom plate 24, a 1# magnetic circuit hole 25, a 2# magnetic circuit hole 26, a mounting groove 27, a coil support column 28, a coil guard plate 29, a through hole 30, a fixing block 31, an iron core 32, a spring 33, a bulge 34, a protrusion 35, a transmission rod 36, a pull ring 37, a long-.

Detailed Description

As shown in fig. 1 to 8, an automatic opening device of a circuit breaker comprises a base 1, a shell cover 2, a microprocessor 3, a communication interface 4, a driving mechanism 5, an opening mechanism 6, a push-pull mechanism 7 and a limit stop 8, wherein a support frame 9 of the driving mechanism 5 is detachably connected with the base 1, a pull rod 10 of the driving mechanism 5 is movably connected with one end of the push-pull mechanism 7, the limit stop 8 is arranged at a position, which is a plurality of millimeters away from the pull rod 10, of one side of the pull rod 10, which is close to the opening mechanism 6, the push-pull mechanism 7 is fixed on the base 1, the other end of the push-pull mechanism 7 is detachably connected with a toggle mechanism 11 of the opening mechanism 6, one end of a limit adjustable mechanism 12 of the opening mechanism 6 is rotatably sleeved with an upright post 13 fixed on the base 1, a shifting needle 14 of the toggle mechanism 11 penetrates through an arc strip-shaped hole 15 formed in the base 1 and is inserted into an opening hole 17 of a breaker 16, and the outer diameter of the shifting needle 14 is matched with the inner diameter of the opening hole 17; the communication interface 4 is electrically connected with the microprocessor 3, the microprocessor 3 is electrically connected with the driving circuit 3a, and the driving circuit 3a is electrically connected with the coil 18.

In the existing automatic switching-on and switching-off technology, a micro motor is utilized to drive a switching-off device to realize switching-off, the speed of switching-off is low, the switching-off requirement under emergency conditions cannot be met frequently, and the electrical accident aggravation is caused.

It should be understood by those skilled in the art that the position of the opening hole 17 of the circuit breaker 16 is different after successful closing and after successful opening, after closing, the opening hole 17 is on the side of the arc-shaped strip-shaped hole 15 close to the opening mechanism 6, and after successful opening, the opening hole 17 is on the side of the arc-shaped strip-shaped hole 15 far from the opening mechanism 6.

In this embodiment, as shown in fig. 1, 3, 4, and 6, the microprocessor 3 is electrically connected to the communication interface 4, the microprocessor 3 receives a remote opening control signal from a control system electrically connected to the communication interface 4, the microprocessor 3 controls the power supply circuit to supply power to the coil 18, the coil 18 generates magnetism when powered, the iron core 32 of the reciprocating mechanism 19 disposed inside the coil 18 moves in a direction away from the limit stop 8 under the action of a magnetic field, because one end of the spring 33 away from the limit stop 8 is blocked by the baffle 23 with the 2# magnetic path hole 26, and the diameter of the spring 33 is greater than that of the 2# magnetic path hole 26, the spring 33 is compressed when the reciprocating mechanism 19 moves in a direction away from the limit stop 8.

The pull ring 37 of the push-pull mechanism 7 is slidably connected with the pull rod 10 of the reciprocating mechanism 19, i.e. the pull ring 37 of the push-pull mechanism 7 is sleeved on the pull rod 10 of the reciprocating mechanism 19, and the protrusion 35 is arranged at the end of the pull rod 10 far away from the iron core 32, so that when the reciprocating mechanism 19 moves in the direction far away from the limit stop 8, the pull rod 10 and the protrusion 35 pull the pull ring 37 to move towards the side of the driving mechanism 5, and therefore, the transmission rod 36 is driven by the pull ring 37 to move towards the side of the driving mechanism 5.

When the circuit breaker 16 is in a closing state or before opening begins, a shifting needle 14 of the shifting mechanism 11 is inserted into an opening hole 17 of the circuit breaker, and the shifting mechanism 11 is positioned on one side, far away from the driving mechanism 5, of the arc-shaped strip hole 15; after the brake is switched off, the toggle mechanism 11 is positioned at one side of the arc-shaped strip-shaped hole 15 close to the driving mechanism 5; after closing, the pull ring 37 is tightly attached to the protruding part 35 and close to one side of the driving mechanism 5, and is in a tight state, so long as the driving mechanism 5 pulls the pull ring 5 to one side far away from the limit stop 8, the opening mechanism 6 can be immediately driven to open, and after opening is finished, the pull ring 37 is on the pull rod 10 and is in a free and tight state.

One end of a limiting adjustable mechanism 12 of the opening mechanism 6 is detachably connected with the toggle mechanism 11, the other end of the limiting adjustable mechanism is rotatably connected with the upright post 13 fixed on the base 1, when the transmission rod 36 is pulled to one side of the driving mechanism 5, the toggle mechanism 11 is driven by the transmission rod 36 to move to one side of the driving mechanism 5 along the arc-shaped strip-shaped hole 15, so that the poking needle 14 drives a release of the circuit breaker to move towards the driving mechanism 5, the opening of the circuit breaker is realized, after the opening is completed, the opening state is kept, and the spring 33 is in a compression state.

After the microprocessor 3 controls the power circuit to electrify the coil 18 for a plurality of seconds, the opening is successful, then the microprocessor 3 controls the power circuit to be disconnected, the coil 18 is electrified, the coil 18 loses magnetism, because the iron core 32 of the reciprocating mechanism 19 is movably connected with the spring 33, the iron core 32 moves towards the direction of the limit stop 8 under the action of the elastic force of the spring 33 until the protrusion part 35 of the pull rod 10 is contacted with the limit stop 8, meanwhile, the side surface of the iron core 32 close to one end of the pull rod 10 is flush with the side surface of the support frame 9 close to the limit stop 8, and because the transmission rod 36 is fixedly connected with the pull ring 37 through a flexible material, the push-pull mechanism 7 does not act in the process that the reciprocating mechanism 19 moves towards the limit stop.

In the switching-on process of the circuit breaker 16, the toggle mechanism 11 and the tripping mechanism of the circuit breaker 16 are driven by the switching-on mechanism of the circuit breaker 16, the toggle mechanism 11 is pulled to the side close to the opening mechanism 6 from the side close to the driving mechanism 5 of the arc-shaped strip-shaped hole 15, the toggle mechanism 11 drives the transmission rod 36 to move in the direction far away from the driving mechanism 5, the pull ring 37 has no pulling force on the pull rod 10 in the switching-on process, and the flexible material between the pull ring 37 and the transmission rod 36 is in a tightened state until the switching-on is successful.

As shown in fig. 3 and 4, after the i-shaped rack 20 is placed inside the supporting frame 9, one side of the baffle plate 23 away from the bottom plate 24 is adapted to the height of the base 1, the supporting frame is matched with the mounting post 22 through the mounting hole 21 and is mounted on the base 1, and then the supporting frame 9 is pressed by the cover 2, so that the driving mechanism 5 is ensured to be stably mounted between the base 1 and the cover 2, in addition, the height of the limit stop 8 is adapted to the height of the base 1, and when the protruding part 35 touches the limit stop 8, the protruding part 35 can be completely attached to the side surface of the limit stop 8.

The middle part of base 1 is equipped with the circuit board, and microprocessor 3 and subsidiary circuit, power supply circuit and communication circuit all set up on the circuit board, and communication interface 4 and microprocessor 3's communication function interface electricity are connected, and communication interface 4 and microprocessor 3 electric connection promptly, communication interface 4 sets up on cap 2, and the convenience is connected with remote control system electricity.

As shown in fig. 5, since the elongated limiting hole 38 is disposed in the middle of the adjustable limiting mechanism 12, the toggle mechanism 11 can be adjusted according to the position of the opening 17, the positioning block 39 is disposed on the lower surface of the adjustable limiting mechanism 12, the toggle mechanism 11 penetrates through the elongated limiting hole 38, the toggle mechanism 11 is fixed on the adjustable limiting mechanism 12 by the fastening device 40, and the inner surface of the fastening device 40 is in threaded connection with one end of the shifting needle 14 close to the fastening device 40.

Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the appended claims.

Although the base 1, the housing cover 2, the microprocessor 3, the communication interface 4, the driving mechanism 5, the opening mechanism 6, the push-pull mechanism 7, the limit stopper 8, the supporting frame 9, the pull rod 10, the toggle mechanism 11, the limit adjustable mechanism 12, the upright post 13, the dial 14, the arc-shaped strip-shaped hole 15, the circuit breaker 16, the opening hole 17, the coil 18, the reciprocating mechanism 19, the i-shaped frame 20, the mounting hole 21, the mounting post 22, the baffle 23, the bottom plate 24, the 1# magnetic circuit hole 25, the 2# magnetic circuit hole 26, the mounting groove 27, the coil support 28, the coil guard 29, the through hole 30, the fixing block 31, the iron core 32, the spring 33, the boss 34, the protrusion 35, the driving rod 36, the pull ring 37, the elongated limit hole 38, the positioning block 39 and the fastening device 40 are used more frequently, the possibility of using. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An automatic opening device of a circuit breaker comprises a base (1) and a shell cover (2), and is characterized by comprising a microprocessor (3), a communication interface (4), a driving mechanism (5), an opening mechanism (6), a push-pull mechanism (7) and a limit stop (8), wherein a support frame (9) of the driving mechanism (5) is detachably connected with the base (1), a pull rod (10) of the driving mechanism (5) is movably connected with one end of the push-pull mechanism (7), the limit stop (8) is arranged at a position which is a plurality of millimeters away from the pull rod (10) and is arranged on one side of the pull rod (10) close to the opening mechanism (6) and is fixed on the base (1), the other end of the push-pull mechanism (7) is detachably connected with a toggle mechanism (11) of the opening mechanism (6), one end of a limit adjustable mechanism (12) of the opening mechanism (6) is rotatably sleeved with a stand column (13) fixed on the base (1), a poking needle (14) of the poking mechanism (11) penetrates through an arc-shaped strip-shaped hole (15) formed in the base (1) and is inserted into a brake separating hole (17) of the circuit breaker (16), and the outer diameter of the poking needle (14) is matched with the inner diameter of the brake separating hole (17); the communication interface (4) is electrically connected with the microprocessor (3), the microprocessor (3) is electrically connected with the driving circuit (3a), and the driving circuit (3a) is electrically connected with the coil (18).

2. The automatic opening device of the circuit breaker according to claim 1, wherein the driving mechanism (5) comprises an I-shaped frame (20), a coil (18), a supporting frame (9) and a reciprocating mechanism (19), a bottom plate (24) of the supporting frame (9) is provided with a plurality of mounting holes (21) corresponding to the positions of mounting columns (22) arranged on the base (1), two sides of the supporting frame (9) are respectively provided with a baffle (23), and the two baffles (23) are respectively fixedly arranged on two opposite sides of the bottom plate (24) and are positioned on the same side of the bottom plate (24).

3. The automatic opening device of the circuit breaker according to claim 2, characterized in that the middle of the baffle plate (23) is provided with a 1# magnetic circuit hole (25) and a 2# magnetic circuit hole (26), the diameter of the 1# magnetic circuit hole (25) is larger than that of the 2# magnetic circuit hole (26), and the two ends of the baffle plate (23) far away from the bottom plate (24) are respectively provided with a mounting groove (27).

4. The automatic opening device of the circuit breaker according to claim 2, characterized in that the coil (18) is detachably wound on a coil support (28) of the i-shaped frame (20), the coil support (28) is a hollow cylinder, coil protection plates (29) are respectively fixed on two sides of the coil support (28), a through hole (30) adapted to the coil support (28) is formed in the middle of the coil protection plate (29), and fixing blocks (31) are respectively arranged on the top of the same side of the two coil protection plates (29) far away from the coil (18);

the I-shaped frame (20) is placed in the support frame (9), the 1# magnetic circuit hole (25) faces one side of the opening mechanism (6), the fixing block (31) is matched with the mounting groove (27), and the center lines of the 1# magnetic circuit hole (25), the 2# magnetic circuit hole (26) and the through hole (30) are overlapped.

5. The automatic opening device of the circuit breaker according to claim 2, characterized in that the reciprocating mechanism (19) comprises a pull rod (10), an iron core (32) and a spring (33), the diameter of the spring (33) is larger than that of the 2# magnetic circuit hole (26), one end of the iron core (32) far away from the pull rod (10) is provided with a protruding part (34) with a diameter smaller than that of the iron core (32), the diameter of the spring (33) is larger than that of the protruding part (34) and smaller than that of the iron core (32), one side of the spring (33) is sleeved on the protruding part (34), the reciprocating mechanism (19) is arranged in the coil support post (28), the other side of the spring (33) is in contact with the baffle (23) where the 2# magnetic circuit hole (26) is located, one side of the iron core (32) close to the limit stop (8) is fixedly connected with the pull rod (10), and when the spring (33) is not compressed, the side of the iron core (32) close to one end of the pull rod (10) is The diameter of the 1# magnetic path hole (25) is adapted to the inner diameter of the coil (18) and the diameter of the iron core (32).

6. The automatic opening device of the circuit breaker according to claim 5, characterized in that the end of the pull rod (10) far away from the iron core is provided with a protrusion (35) detachably connected with the pull rod (10), and when the spring (33) is not compressed and the reciprocating mechanism (19) is arranged in the coil support (28), the protrusion (35) is contacted with the limit stop (8).

7. The automatic opening device of the circuit breaker according to claim 1, characterized in that the push-pull mechanism (7) comprises a transmission rod (36) and a pull ring (37), one side of the transmission rod (36) close to the coil (18) is provided with the pull ring (37), the other side of the transmission rod and one end of the toggle mechanism (11) far away from the poking needle (14) are detachably connected, the transmission rod (36) and the pull ring (37) are flexibly and fixedly connected, the pull ring (37) is sleeved on the pull rod (10), and the diameter of the pull ring (37) is smaller than that of the protrusion (35).

8. The automatic opening device of the circuit breaker according to claim 1, wherein the opening mechanism (6) comprises a toggle mechanism (11) and a limit adjustable mechanism (12), an elongated limit hole (38) is formed in one side of the limit adjustable mechanism (12) away from the upright post (13), one end of the toggle mechanism (11) away from the poking needle (14) penetrates through the elongated limit hole (38) and one end of the transmission rod (36) away from the pull ring (37) to be detachably connected with the limit adjustable mechanism (12).

9. The automatic opening device of the circuit breaker according to claim 1, wherein the toggle mechanism (11) comprises a toggle pin (14), a positioning block (39) and a fastening device (40), the adjustable limiting mechanism (12) and one end of the transmission rod (36) far away from the pull ring (37) are arranged between the positioning block (39) and the fastening device (40), and the fastening device (40) is in threaded connection with one end of the toggle pin (14).

10. The automatic opening device of the circuit breaker according to claim 1 or 2, characterized in that the height of the supporting frame (9) and the limit stop (8) is adapted to the height of the base (1).