CN219553551U - Switching-on and switching-off mechanism of direct-current molded case circuit breaker - Google Patents
Switching-on and switching-off mechanism of direct-current molded case circuit breaker Download PDFInfo
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- CN219553551U CN219553551U CN202320419815.8U CN202320419815U CN219553551U CN 219553551 U CN219553551 U CN 219553551U CN 202320419815 U CN202320419815 U CN 202320419815U CN 219553551 U CN219553551 U CN 219553551U
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- circuit breaker
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- breaker body
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Abstract
The utility model relates to the technical field of molded case circuit breakers, in particular to a switching-on and switching-off mechanism of a direct current molded case circuit breaker, which comprises a circuit breaker body, wherein the top and the bottom of the inner wall of the circuit breaker body are fixedly connected with insulating connecting blocks, the insulating connecting blocks are fixedly connected with conductive contacts, a movable electrifying plate is arranged in the circuit breaker body, and one side of the electrifying plate is fixedly connected with an adjusting plate made of insulating materials; fixedly connected with pivot between the both sides of circuit breaker body inner wall can carry out circular telegram and outage to the circuit breaker body through rotating the plug-in strip to when rotating with down the plug-in strip, the one end of adjusting the clamp plate is in the inside of location at first location arc groove and second location arc groove respectively, makes the difficult gyration of adjusting the clamp plate, avoids vibrations to lead to adjusting the clamp plate to take place to rotate, makes the plug-in strip appear unusual problem of opening and closing.
Description
Technical Field
The utility model relates to the technical field of molded case circuit breakers, in particular to a switching-on and switching-off mechanism of a direct current molded case circuit breaker.
Background
The plastic case circuit breaker can automatically cut off the current after the current exceeds the trip setting, and the plastic case refers to a plastic insulator used as a casing of the device for isolating the conductors and the grounded metal part.
The direct current molded case circuit breaker is one of molded case circuit breakers, and a closing mechanism is arranged on the direct current molded case circuit breaker and used for closing the circuit breaker, such as the closing mechanism of the circuit breaker, which is proposed in patent application number CN201721682283.8, can effectively prevent the leakage of the device, so that the safety performance of the device is higher.
In the prior art, a closing mechanism is proposed in the patent application number CN201721682283.8, and the closing mechanism is controlled by the rotation of a knife matched with a closing contact piece, but the knife part is only positioned by extrusion, the contact surface of the closing contact piece and the knife part is an arc surface, so that the extrusion positioning of the knife part can be loosened due to equipment vibration, and the problem that the knife is opened and closed abnormally is caused.
Disclosure of Invention
The utility model aims to provide a switching-on/off mechanism of a direct current molded case circuit breaker, which aims to solve the problems in the background technology.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a divide-shut brake mechanism of direct current moulded case circuit breaker, includes the circuit breaker body, the equal fixedly connected with insulation connecting block in top and bottom of circuit breaker body inner wall, fixedly connected with conductive contact on the insulation connecting block, the inside of circuit breaker body is provided with mobilizable circular telegram board, and one side fixedly connected with of circular telegram board is the regulating plate of insulating material.
The circuit breaker is characterized in that a rotating shaft is fixedly connected between two sides of the inner wall of the circuit breaker body, a connecting sleeve is rotationally connected to the outer surface of the rotating shaft, one side of the connecting sleeve is fixedly connected with an inclined adjusting pressing plate which is positioned inside the circuit breaker body, and a knife switch is fixedly connected to one side of the connecting sleeve and positioned outside the circuit breaker body.
Preferably, a first positioning arc groove and a second positioning arc groove are formed in one side of the adjusting plate, the first positioning arc groove and the second positioning arc groove are obliquely arranged, the first positioning arc groove and the second positioning arc groove are matched with the adjusting pressing plate, and one side of the adjusting plate is located between the first positioning arc groove and the second positioning arc groove and is designed to be a curved surface.
Preferably, one side fixedly connected with first insulating go-between of circular telegram board, one side fixedly connected with spring of first insulating go-between, one side fixedly connected with second insulating go-between of circuit breaker body inner wall, the one end and the second insulating go-between fixed connection of spring.
Preferably, the top and the bottom of the circuit breaker body are provided with wiring holes, and the top and the bottom of the circuit breaker body are fixedly connected with fixed sleeve blocks.
Preferably, a screw hole is formed in one side of the circuit breaker body, an adjusting bolt is adjusted on the screw hole in a threaded mode, a connecting pressing block made of an insulating material is fixedly connected to one side of the inner wall of the wiring hole, and one end of the adjusting bolt is rotationally connected with the connecting pressing block.
Preferably, one side fixedly connected with arc guide bar of circuit breaker body, arc guide bar and regulation clamp plate sliding connection, two absorption parts of fixedly connected with on the arc guide bar, the equal fixed mounting in both sides of circuit breaker body inner wall and the both sides that are located conductive contact have the arc extinguishing board.
The utility model has the beneficial effects that:
can carry out circular telegram and outage to the circuit breaker body through rotating the plug-in strip to when changeing with down the plug-in strip, the one end of adjusting the clamp plate can be in the inside state of location at first location arc inslot or second location arc inslot, makes the difficult gyration of adjusting the clamp plate, avoids vibrations to lead to adjusting the clamp plate and takes place to rotate, makes the problem that the plug-in strip opened and closed unusually appear.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present utility model;
fig. 2 is a schematic view of the structure of the bottom portion of the circuit breaker body of fig. 1;
fig. 3 is a schematic structural view of a front view of the circuit breaker body of fig. 1;
FIG. 4 is a schematic view of the structure of the power plate and conductive contact portions of FIG. 3;
reference numerals in the drawings are as follows:
1. the circuit breaker body, 2, the insulating connecting block, 3, the conductive contact, 4, the circular telegram board, 5, the regulating plate, 6, the pivot, 7, adapter sleeve, 8, the regulation clamp plate, 9, the plug-in strip, 10, first location arc groove, 11, second location arc groove, 12, first insulating go-between, 13, the spring, 14, the insulating go-between of second, 15, the wiring hole, 16, fixed cover piece, 17, the screw, 18, adjusting bolt, 19, the connection briquetting, 20, arc guide bar, 21, the adsorption piece, 22, the arc extinguishing board.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a divide-shut brake mechanism of direct current moulded case circuit breaker, includes circuit breaker body 1, the equal fixedly connected with insulation connecting block 2 in top and the bottom of circuit breaker body 1 inner wall, fixedly connected with conductive contact 3 on the insulation connecting block 2, the inside of circuit breaker body 1 is provided with mobilizable circular telegram board 4, and one side fixedly connected with of circular telegram board 4 is the regulating plate 5 of insulating material.
Fixedly connected with pivot 6 between the both sides of circuit breaker body 1 inner wall, the surface rotation of pivot 6 is connected with adapter sleeve 7, and one side of adapter sleeve 7 just is located the inside fixedly connected with regulation clamp plate 8 that the slope set up of circuit breaker body 1, and one side of adapter sleeve 7 just is located the outside fixedly connected with plug-in strip 9 of circuit breaker body 1.
The breaker body 1 is the direct current moulded case circuit breaker among the prior art, can be used to circuit switch's control, and conductive contact 3 passes through insulation connecting block 2 to be fixed inside the breaker body 1, is not connected with the breaker body 1, and regulation clamp plate 8 adopts insulating material preparation, has further promoted the leak protection electric energy ability of equipment.
The first positioning arc groove 10 that the slope set up and the second positioning arc groove 11 that the level set up are seted up to one side of regulating plate 5, first positioning arc groove 10 and second positioning arc groove 11 all with regulation clamp plate 8 looks adaptation, one side of regulating plate 5 just is located and designs into the curved surface between first positioning arc groove 10 and the second positioning arc groove 11.
As shown in fig. 1, the inner sides of the first positioning arc groove 10 and the second positioning arc groove 11 are curved surfaces, so that when the adjusting pressing plate 8 is rotated, the adjusting pressing plate 8 can squeeze the curved surfaces inside the first positioning arc groove 10 and the second positioning arc groove 11 and move in the curved surface, and the curved surfaces between the first positioning arc groove 10 and the second positioning arc groove 11 are designed, so that the adjusting pressing plate 8 can move between the first positioning arc groove 10 and the second positioning arc groove 11 more conveniently.
One side fixedly connected with first insulating go-between 12 of circular telegram board 4, one side fixedly connected with spring 13 of first insulating go-between 12, one side fixedly connected with second insulating go-between 14 of circuit breaker body 1 inner wall, the one end and the second insulating go-between 14 fixed connection of spring 13.
As shown in fig. 1, the two ends of the spring 13 are respectively provided with the first insulating connecting ring 12 and the second insulating connecting ring 14, so that insulating protection can be provided for the spring 13, and the spring 13 cannot conduct electricity and only plays a role in providing elasticity.
The wiring holes 15 are formed in the top and the bottom of the circuit breaker body 1, and the fixed sleeve blocks 16 are fixedly connected to the top and the bottom of the circuit breaker body 1.
Screw 17 has been seted up to one side of circuit breaker body 1, and threaded adjustment has adjusting bolt 18 on the screw 17, and one side fixedly connected with of wiring hole 15 inner wall adopts insulating material to make connects briquetting 19, and adjusting bolt 18's one end and connection briquetting 19 rotate to be connected.
As shown in fig. 1, when the exposed end of the external electric wire is extended into the wiring hole 15, the adjusting bolt 18 can be rotated by a screwdriver, the adjusting bolt 18 presses the connecting pressing block 19 towards the inside of the wiring hole 15, and when the connecting pressing block 19 presses and attaches the exposed end of the external electric wire to the conductive contact 3, the circuit between the conductive contact 3 and the external electric wire is communicated.
One side fixedly connected with arc guide bar 20 of circuit breaker body 1, arc guide bar 20 and regulation clamp plate 8 sliding connection are fixedly connected with two absorption members 21 on the arc guide bar 20, and the equal fixed mounting of both sides that just are located conductive contact 3 of the both sides of circuit breaker body 1 inner wall has arc extinguishing plate 22.
As shown in fig. 1, the absorbing member 21 is a magnet, which can limit the maximum distance that the adjusting platen 8 can rotate, and the two sides of the adjusting platen 8 are provided with raised iron sheets, when the adjusting platen 8 rotates at the maximum distance, the adjusting platen 8 can be absorbed onto the absorbing member 21, and the positioning effect on the adjusting platen 8 is further improved, so that the adjusting platen 8 is not easy to loose.
The utility model provides a switching-on and switching-off mechanism of a direct current molded case circuit breaker, which has the following working principle:
when the external circuit is fixed inside the wiring hole 15 and connected to the conductive contacts 3, the spring 13 presses the energizing plate 4 at this time, so that the energizing plate 4 is attached to the two conductive contacts 3 to complete energizing;
when the knife switch 9 is pulled upwards, the adjusting pressing plate 8 can be driven to rotate downwards, the adjusting pressing plate 8 extrudes the cambered surface in the first positioning arc groove 10, so that the adjusting plate 5 drives the electrifying plate 4 to extrude the spring 13 and move towards the direction of the spring 13, the adjusting pressing plate 8 can move to the cambered surface on one side of the adjusting pressing plate 8 and finally move to the inner part of the second positioning arc groove 11, then the spring 13 stretches to drive the electrifying plate 4 and the adjusting plate 5 to move towards the direction of the adjusting pressing plate 8 until the adjusting pressing plate 8 is positioned in the inner part of the second positioning arc groove 11, and at the moment, the adjusting pressing plate 8 extrudes the adjusting plate 5 and the electrifying plate 4 in a horizontal state, so that the electrifying plate 4 and the conductive contact 3 are not contacted, and power-off is completed;
conversely, when the switch blade 9 is pulled downwards to drive the adjusting pressing plate 8 to rotate upwards, the adjusting pressing plate 8 is positioned in the first positioning arc groove 10, and the energizing plate 4 contacts the conductive contact 3 to complete power-off.
Compared with the related art, the switching-on and switching-off mechanism of the direct current plastic shell circuit breaker has the following beneficial effects:
can carry out circular telegram and outage to circuit breaker body 1 through rotating plug-in strip 9 to when rotating plug-in strip 9 with down, the one end of adjusting clamp plate 8 can be in the state of location in first location arc groove 10 inside or second location arc groove 11 inside, makes adjusting clamp plate 8 be difficult for gyration, avoids vibrations to lead to adjusting clamp plate 8 to take place to rotate, makes plug-in strip 9 appear unusual opening and the problem of closing.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The switching-on and switching-off mechanism of the direct current molded case circuit breaker comprises a circuit breaker body (1) and is characterized in that an insulating connecting block (2) is fixedly connected to the top and the bottom of the inner wall of the circuit breaker body (1), a conductive contact (3) is fixedly connected to the insulating connecting block (2), a movable electrifying plate (4) is arranged in the circuit breaker body (1), and an adjusting plate (5) made of insulating materials is fixedly connected to one side of the electrifying plate (4);
fixedly connected with pivot (6) between the both sides of circuit breaker body (1) inner wall, the surface rotation of pivot (6) is connected with adapter sleeve (7), and one side of adapter sleeve (7) just is located inside fixedly connected with regulation clamp plate (8) that the slope set up of circuit breaker body (1), and one side of adapter sleeve (7) just is located outside fixedly connected with plug-in strip (9) of circuit breaker body (1).
2. The opening and closing mechanism of the direct current molded case circuit breaker according to claim 1, wherein a first positioning arc groove (10) and a second positioning arc groove (11) which are obliquely arranged and horizontally arranged are formed in one side of the adjusting plate (5), the first positioning arc groove (10) and the second positioning arc groove (11) are matched with the adjusting pressing plate (8), and a curved surface is designed between the first positioning arc groove (10) and the second positioning arc groove (11) on one side of the adjusting plate (5).
3. The opening and closing mechanism of the direct current plastic case circuit breaker according to claim 1, wherein one side of the energizing plate (4) is fixedly connected with a first insulating connecting ring (12), one side of the first insulating connecting ring (12) is fixedly connected with a spring (13), one side of the inner wall of the circuit breaker body (1) is fixedly connected with a second insulating connecting ring (14), and one end of the spring (13) is fixedly connected with the second insulating connecting ring (14).
4. The opening and closing mechanism of the direct current plastic case circuit breaker according to claim 1, wherein the top and the bottom of the circuit breaker body (1) are provided with wiring holes (15), and the top and the bottom of the circuit breaker body (1) are fixedly connected with fixed sleeve blocks (16).
5. The opening and closing mechanism of the direct current molded case circuit breaker according to claim 4, wherein a screw hole (17) is formed in one side of the circuit breaker body (1), an adjusting bolt (18) is adjusted on the screw hole (17) in a threaded mode, a connecting pressing block (19) made of an insulating material is fixedly connected to one side of the inner wall of the wiring hole (15), and one end of the adjusting bolt (18) is rotatably connected with the connecting pressing block (19).
6. The opening and closing mechanism of the direct current molded case circuit breaker according to claim 5, wherein one side of the circuit breaker body (1) is fixedly connected with an arc-shaped guide rod (20), the arc-shaped guide rod (20) is in sliding connection with an adjusting pressing plate (8), two absorbing parts (21) are fixedly connected to the arc-shaped guide rod (20), and arc-extinguishing plates (22) are fixedly installed on two sides of the inner wall of the circuit breaker body (1) and two sides of the conductive contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320419815.8U CN219553551U (en) | 2023-03-08 | 2023-03-08 | Switching-on and switching-off mechanism of direct-current molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320419815.8U CN219553551U (en) | 2023-03-08 | 2023-03-08 | Switching-on and switching-off mechanism of direct-current molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219553551U true CN219553551U (en) | 2023-08-18 |
Family
ID=87731877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320419815.8U Active CN219553551U (en) | 2023-03-08 | 2023-03-08 | Switching-on and switching-off mechanism of direct-current molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219553551U (en) |
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2023
- 2023-03-08 CN CN202320419815.8U patent/CN219553551U/en active Active
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