CN210837616U

CN210837616U - Novel circuit breaker

Info

Publication number: CN210837616U
Application number: CN201920088433.5U
Authority: CN
Inventors: 朱建波; 王玉召; 吴东钱; 刘祖明
Original assignee: Hangzhou Kefeng Electronic Co ltd
Current assignee: Hangzhou Kefeng Electronic Co ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-06-23
Anticipated expiration: 2029-01-18

Abstract

The utility model discloses a novel circuit breaker, include epitheca, inferior valve, locate the epitheca with a plurality of circuit breaker between the inferior valve device, with circuit breaker matched with switching device and locating the epitheca with magnetic flow device between the inferior valve, circuit breaker includes the shell, locates copper parts in the shell, with copper parts cooperate connecting conductor, core coil and with the relative iron core coil that sets up of core coil, core coil is connected with the copper core conductor, the iron core conductor is connected with on the circle. The utility model discloses a set up core coil and iron core coil relatively, its response effect between guaranteeing core coil and iron core coil, the holistic small of guarantee current transformer, the convenience is assembled current transformer.

Description

Novel circuit breaker

Technical Field

The utility model belongs to the technical field of basic electric elements, especially, relate to a novel circuit breaker.

Background

The novel circuit breaker is a switching device capable of closing, bearing and opening/closing a current under a normal circuit condition and closing, bearing and opening/closing a current under an abnormal circuit condition within a specified time. The novel circuit breaker is divided into a high-voltage novel circuit breaker and a low-voltage novel circuit breaker according to the application range of the novel circuit breaker; the novel circuit breaker at present mostly assembles together through the novel circuit breaker of three modularization to the effect to the circuit disconnection that plays.

It is great because inside current transformer's of current novel circuit breaker volume, consequently can cause novel circuit breaker's volume grow, and it can cause novel circuit breaker it after the assembly together, and the volume grow, it is inconvenient in the middle of assembling the block terminal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a small novel circuit breaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel circuit breaker, includes epitheca, inferior valve, locates the epitheca with a plurality of circuit breaker between the inferior valve device, with circuit breaker matched with switching device and locating the epitheca with magnetic flux device between the inferior valve, circuit breaker includes the shell, locates copper parts in the shell, with copper parts cooperate connecting conductor, core coil and with the relative iron core coil that sets up of core coil, core coil is connected with the copper core conductor, be connected with the iron core conductor on the iron core coil.

The utility model discloses a set up core coil and iron core coil relatively, its response effect between guaranteeing core coil and iron core coil, the interval between guarantee core coil and the iron core coil is certain, it improves the effect of responding to between the mutual-inductor; the arrangement mode can ensure that the whole volume of the current transformer is small, and the current transformer is convenient to assemble; and because the volume of whole current mutual inductance device diminishes, the novel circuit breaker of consequently produced single modularization is small, and its space that occupies is little, conveniently assembles.

Preferably, the short-circuit device further comprises a first housing and a second housing detachably connected to the first housing, the core coil is disposed in the first housing, and the core coil is disposed in the second housing; the core coil and the iron core coil can be effectively protected and positioned by arranging the first shell and the second shell, and the first shell and the second shell can be kept to form a current transformer with smaller volume.

Preferably, the copper plate component comprises a plurality of copper plates arranged at intervals and connecting blocks used for connecting the copper plates.

Preferably, a first opening through which the copper core conductor penetrates is formed in the first shell, and a second opening through which the iron core conductor penetrates is formed in the second shell.

Preferably, a sleeving convex part is arranged on the first shell, and a sleeving concave part sleeved into the sleeving convex part is arranged on the second shell; by providing the sleeve convex part and the sleeve concave part, the stability of connection between the first shell and the second shell can be realized, and the sealing performance of the first shell and the second shell after connection is good.

Preferably, a first platform part is arranged at the upper part of the first shell, and a second platform part parallel to the first platform part is arranged at the upper part of the second shell; the first platform part and the second platform part are arranged to keep the upper part of the current transformer fixed when the current transformer is assembled.

The shaft body part includes the casing, locates magnetic flow body, shaft body part in the casing, be used for holding the magnetic part of shaft body part and with the closing cap that the casing links to each other, the shaft body part is including wearing to locate shaft body on the magnetic flow body, cover locate the elastic component on the shaft body and be used for promoting the top cap of shaft body downstream, the top cap with be equipped with the bolster between the shaft body.

The utility model discloses a set up the speed that the bolster can reduce the axis body motion, therefore the axis body and magnetic part collide mutually, and the axis body is because of after the buffering, and it is little to the bottom impact of casing, and it is relative consequently to avoid the casing bottom the casing takes place to drop, improves the stability and the life of magnetic flux when using.

Preferably, the shaft body component further comprises a connecting rod for connecting the shaft body and the top cover, the buffer piece is sleeved on the connecting rod, and a plug is arranged at the lower part of the shaft body; the connecting rod is connected with the shaft body, so that the process that the buffer piece transmits force can be guaranteed to be stable, and the shaft body moves up and down stably; the contact area between the lower part of the shaft body and the magnetic part can be increased by arranging the plug, so that the effect of attracting the shaft body by the magnetic part is improved.

Preferably, the seal cover is provided with a through hole for the seal cover to be sleeved on the shaft body; through setting up the through-hole can be convenient for the axis body to pass in the middle of the through-hole to can also avoid external debris to fall in the casing.

Preferably, the shaft body comprises a first rod body part and a second rod body part integrally formed with the first rod body part, the diameter of the first rod body part is larger than the aperture of the through hole, and the diameter of the second rod body part is smaller than the aperture of the through hole; the first shaft body part and the second shaft body part can be arranged to limit the shaft body from being separated from the sealing cover, and the diameter of the first shaft body part is larger, so that the contact effect of the first shaft body part and the magnetic part can be improved.

To sum up, the utility model discloses a set up core coil and iron core coil relatively, its response effect between guaranteeing core coil and iron core coil, guarantee that current transformer is holistic small, conveniently assembles current transformer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of a partial structure of the present invention.

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is an enlarged view of a in fig. 4.

Fig. 6 is a schematic structural diagram of the circuit breaking device of the present invention.

Fig. 7 is a schematic view of a partial structure of the circuit breaker of the present invention.

Fig. 8 is a schematic structural diagram of the current transformer of the present invention.

Fig. 9 is an exploded view of the current transformer of the present invention.

Fig. 10 is a partial exploded view of the current transformer according to the present invention.

Fig. 11 is a partial explosion diagram of the current transformer of the present invention.

Fig. 12 is a partial exploded view of the current transformer of the present invention.

Fig. 13 is a schematic structural view of the magnetic flux device of the present invention.

Fig. 14 is an exploded view of the magnetic flux device of the present invention.

Fig. 15 is a front view of the magnetic flux device of the present invention.

Fig. 16 is a cross-sectional view a-a of fig. 15.

Detailed Description

In order to make the technical field personnel understand the utility model discloses the scheme, will combine the drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model carries out clear, complete description.

As shown in fig. 1 to 16, a novel circuit breaker includes an upper shell 31, a lower shell 32, a circuit breaking device, a switching device and a magnetic flux device, wherein the upper and lower shells are plastic shells, the circuit breaking device, the switching device and the magnetic flux device are arranged between the upper and lower shells, and the upper shell 31 and the lower shell 32 are connected by screws; specifically, the number of the circuit breaking devices is three, the three circuit breaking devices are arranged on the lower shell 32 side by side, and a plurality of partition layers 321 are arranged on the lower shell 32, so that the space in the lower shell 32 is divided into three cavities for placing the short circuit devices; specifically, the circuit breaking device comprises a shell 19, a copper plate part 18, a connecting conductor 17 and a current mutual inductance device, wherein the shell 19 is a plastic shell, the shell 19 is formed by connecting two plastic shells together, a heat dissipation plate 191 is arranged on the shell 19, and the heat dissipation plate 191 is a metal plate with a plurality of round holes; the copper plate component 18 is arranged in the shell 19, the copper plate component 18 comprises a plurality of copper plates 181 arranged at intervals and connecting blocks 182, and the connecting blocks 182 are metal blocks; the conductor connecting conductor 17 is a U-shaped metal block, the connecting conductor 17 is disposed in the outer case 19, and one end of the connecting conductor 17 is located above the copper plate 181, and the other end is located outside the outer case 19.

Further, the current mutual inductance device comprises a first shell 11, a second shell 12, a core coil 13 and an iron core coil 14, wherein the first shell and the second shell are both plastic shells and are detachably connected with each other; the core coil 13 is disposed in the first housing 11, and the core coil 14 is disposed in the second housing 12; the core coil 13 comprises a core 132 made of soft material and a copper wire 133, the core 132 may be made of soft copper, the copper wire 133 is wound on the core 132, and the diameter of the copper wire 133 is 0.06 cm; the core coil 13 is produced by winding the copper wire 133 around the core 132 and then welding the two ends of the core 132 together to form a circular ring shape.

The core 132 is connected with a copper core conductor 131, the copper core conductor 131 is a copper metal wire, the copper core conductor 131 extends out of the first housing 11, the iron core coil 14 is composed of an iron core 142 and a copper wire 143, the iron core 142 is an iron metal ring, the copper wire 143 is completely the same as the copper wire 133, and the copper wire 143 is wound on the iron core 142; the iron core 142 is connected with an iron core conductor 141, and the iron core conductor 141 is a section of conducting wire made of iron metal; the core conductor 141 protrudes from the middle of the second housing 12.

Specifically, a sleeve convex portion 111 is provided on the first housing 11, a sleeve concave portion 121 is provided on the second housing 12, and when the first housing 11 and the second housing 12 are connected, the sleeve convex portion 111 is inserted into the sleeve concave portion 121; a first opening 110 is formed in the first housing 11, a second opening 120 is formed in the second housing 12, the copper core conductor 131 penetrates through the first opening 110, and the iron core conductor 141 extends out of the second opening 120; meanwhile, a first platform part 112 is arranged on the first casing 11, a second platform part 122 is arranged on the second casing 12, the first platform part 112 and the second platform part 122 are on the same plane, when the first casing 11 and the second casing 12 are connected, the first platform and the second platform form a platform, a buckle protrusion 1121 is arranged at the first platform 112, a clamping opening 1221 is arranged at the second platform 122, and the clamping protrusion 1121 can penetrate through the clamping opening 1221, so that the first casing and the second casing are prevented from being disassembled.

Further, two protruding portions 1223 are arranged on the second platform portion 122, the protruding portions 1223 are plastic columns, the lower portion of the first housing 11 is provided with a first supporting leg 115, the lower portion of the second housing 12 is provided with a second supporting leg 125, a side wall of the first supporting leg 115 is provided with a buckling portion 1151, a side wall of the second supporting leg 125 is provided with a buckling opening 1251, and when the first housing 11 is connected with the second housing 12, the buckling portion 1151 can be buckled into the buckling opening 1251; meanwhile, a fixing frame 15 penetrates through the first shell 11 and the second shell 12, the fixing frame 15 is a Z-shaped metal sheet, and the fixing frame 15 is connected with the connecting conductor through a screw.

Further, the three shells 19 are connected through a fixing member 33, the fixing member 33 is a metal member, and one end of each of the three shells 19 is connected with the fixing member 33 through a screw; specifically, a support 34 is arranged on the housing 19, the support 34 is a metal frame made of metal, the switch device is arranged on the support 34, the switch device comprises a switch handle 41 and a C-shaped rotating block 42, and the switch handle 41 is fixedly connected with the rotating block 42; the bracket 34 is composed of two metal sheets, and a notch portion 341 is arranged on the bracket 34; the toggle member 35 is movably connected to the bracket 34, the toggle member 35 includes a connecting rod 351 movably connected to the bracket 34, and a limiting portion 352 connected to the connecting rod 351, the limiting portion 352 is located in the notch portion 341, when the switch handle 41 drives the rotating block 42, the switch handle 41 contacts with the connecting rod 351, so that the switch handle 41 drives the toggle member 351 to move, and the limiting portion 352 moves in the notch portion 341.

Further, a placing rack 36 is connected to the support 34, the placing rack 36 is a metal rack, the rotating block 42 is placed on the placing rack 36, a cross bar 37 is arranged on the placing rack 36, and the rotating block 42 is placed on the cross bar 37, so that the rotating block 42 rotates along the cross bar 37; a frame 39 is arranged between the upper shell 31 and the lower shell 32, the frame 39 is a plastic frame, the frame 39 is sleeved on the switch handle 41, an upper placing clamp 40 is connected to the frame 39, the placing frame 40 is connected with the frame 39, a circuit board 41 is arranged in the placing frame 40, a cover body 42 is covered on the placing frame 40, and the cover body 42 is a plastic cover.

Specifically, the magnetic flux device is arranged in the upper and lower shells, and the magnetic flux device includes a shell 21, a magnetic flux body 22, a shaft component, a magnetic component 23, and a cover 24, where the shell 21 is a metal shell, one end of the shell 21 is provided with an opening, and the other section of the shell 21 can also be provided with an opening, and also can be provided with a closing; the magnetic flux body 22 is arranged in the shell 21, and the magnetic flux body 22 is composed of a plastic framework and a coil wound on the framework; the middle part of the magnetic flux body 22 is provided with a through cavity, the magnetic flux body 22 is provided with a sleeving concave part 221, the sleeving concave part 221 is specifically a concave part arranged at one end of a plastic framework, the magnetic part 23 is arranged in the sleeving concave part 221, and the magnetic part 23 is a rubidium magnet arranged in two wafers. Therefore, after the magnetic flux body 22 is placed in the housing 21, the magnetic member 23 is located at the bottom of the housing 21.

Further, the cover 24 is a metal sheet, a boss 211 is disposed on an inner wall of one end of the housing 21, the cover 24 is mounted on the boss 211, a through hole 240 is formed in the middle of the cover 24, the through hole 240 is a circular hole, and the through hole 240 allows a shaft part to pass through the through hole 240; specifically, the shaft body member includes a shaft body 251, a top cover 253, an elastic element 252, a buffer 255 and a connecting rod 256, the shaft body 251 is a metal shaft with a hollow interior, the shaft body 251 includes a first rod body portion 2511 and a second rod body portion 2512 integrally formed with the first rod body portion 2511, wherein the diameter of the first rod body portion 2511 is larger than the aperture of the through hole 240, and the diameter of the second rod body portion 2512 is smaller than the aperture of the through hole 240, so that the second rod body portion 2512 can penetrate out of the through hole 240; meanwhile, a plug 257 is disposed at a lower portion of the first rod 2511, the plug 257 is a metal block, and the plug 257 plugs the lower portion of the first rod 2511.

Specifically, the extension bar 256 is a screw, the extension bar 256 extends from the shaft 251, and the extension bar 256 is screwed with the top cover 253, so that the extension bar 256 connects the shaft 251 and the top cover 253; the elastic member 252 is a spring, the elastic member 252 is sleeved on the shaft 251, the lower part of the elastic member 252 is in contact with the cover 24, and the upper part of the elastic member 252 is abutted against the top cover 253; a positioning convex part 241 is arranged on the cover 24, and the lower part of the elastic element 252 is sleeved on the positioning convex part 241; meanwhile, a specific buffer 255 is arranged on the cover 24, the buffer 255 is a spring, one end of the buffer 255 abuts against the upper end of the second rod 2512, and the upper end of the buffer 255 abuts against the top cover 253.

When using this magnetic flux, when external force pushed down the top cap, the top cap passed through the bolster and promoted the axis body moves downwards, and then the axis body lower part earlier with the magnetism spare contacts to the magnetism spare is inhaled the axis body, elastic deformation can take place for this in-process bolster to slow down the downward collision bottom of axis body.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Claims

1. The utility model provides a novel circuit breaker, includes epitheca (31), inferior valve (32), locates epitheca (31) with a plurality of circuit breaker between inferior valve (32), with circuit breaker matched with switching device and locating epitheca (31) with magnetic flux device between inferior valve (32), its characterized in that: the circuit breaker comprises a shell (19), a copper plate component (18) arranged in the shell (19), a conductor (17) matched and connected with the copper plate component (18), a core coil (13) and an iron core coil (14) arranged opposite to the core coil (13), wherein the core coil (13) is connected with a copper core conductor (131), and the iron core coil (14) is connected with an iron core conductor (141); the magnetic flux device comprises a shell (21), a magnetic flux body (22) arranged in the shell (21), a shaft component, a magnetic component (23) used for attracting the shaft component, and a sealing cover (24) connected with the shell (21).

2. The novel circuit breaker of claim 1, wherein: the circuit breaking device further comprises a first shell (11) and a second shell (12) detachably connected with the first shell (11), the core coil (13) is arranged in the first shell (11), and the iron core coil (14) is arranged in the second shell (12).

3. The novel circuit breaker of claim 1, wherein: the copper plate component (18) comprises a plurality of copper plates (181) arranged at intervals and connecting blocks (182) used for connecting the copper plates (181).

4. The novel circuit breaker of claim 2, wherein: the first shell (11) is provided with a first opening (110) for the copper core conductor (131) to penetrate out, and the second shell (12) is provided with a second opening (120) for the iron core conductor (141) to penetrate out.

5. The novel circuit breaker of claim 2, wherein: the first shell (11) is provided with a sleeving convex part (111), and the second shell (12) is provided with a sleeving concave part (121) which is sleeved into the sleeving convex part (111).

6. The novel circuit breaker of claim 2, wherein: a first platform part (112) is arranged at the upper part of the first shell (11), and a second platform part (122) which is parallel to the first platform part (112) is arranged at the upper part of the second shell (12).

7. The novel circuit breaker of claim 1, wherein: the shaft body component comprises a shaft body (251) arranged on the magnetic flux body (22) in a penetrating mode, an elastic element (252) sleeved on the shaft body (251) and a top cover (253) used for pushing the shaft body (251) to move downwards, and a buffer element (255) is arranged between the top cover (253) and the shaft body (251).

8. The novel circuit breaker of claim 7, wherein: the shaft body component further comprises a connecting rod (256) used for connecting the shaft body (251) and the top cover (253), the buffer piece (255) is sleeved on the connecting rod (256), and a plug (257) is arranged at the lower part of the shaft body (251).

9. The novel circuit breaker of claim 8, wherein: the shaft body (251) comprises a first rod body portion (2511) and a second rod body portion (2512) which is integrally formed with the first rod body portion (2511), the diameter of the first rod body portion (2511) is larger than the aperture of the through hole (240), and the diameter of the second rod body portion (2512) is smaller than the aperture of the through hole (240).