CN219268305U

CN219268305U - Indoor alternating current metal closed ring network switch equipment with current limiting protection

Info

Publication number: CN219268305U
Application number: CN202320307249.1U
Authority: CN
Inventors: 雷和平; 张志强; 李志超; 李文; 李明; 许勇; 姚瑞祥
Original assignee: Hunan Hengbang Intelligent Technology Co ltd
Current assignee: Hunan Hengbang Intelligent Technology Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-06-27
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses indoor alternating current metal closed ring network switch equipment with current limiting protection, which belongs to the technical field of switch equipment, and comprises a ring network switch cabinet and a current limiting protection box arranged in the ring network switch cabinet, wherein a screw of the current limiting protection box is arranged at the bottom of the ring network switch cabinet, a metal rod is fixed in the current limiting protection box, a conductive coil is wound outside the metal rod, a first wire is arranged between one end of the conductive coil and a switch in the ring network switch cabinet, the other end of the conductive coil is connected with a second wire to be externally connected with a power supply, the first wire is inserted into the side surface of the current limiting protection box, a metal thimble connected with the first wire is arranged above the first wire, the second wire and the conductive coil are connected in series, and in an electrified state, the metal thimble and the metal rod are magnetically attracted; the utility model utilizes a magnetic field generating mechanism of the conductive coil, adopts magnetic attraction to carry out current limiting protection on the integrated circuit, does not need repeated disassembly after current limiting, only needs plugging installation, and greatly facilitates the subsequent use.

Description

Indoor alternating current metal closed ring network switch equipment with current limiting protection

Technical Field

The utility model belongs to the technical field of switching equipment, and particularly relates to indoor alternating current metal closed ring network switching equipment with current limiting protection.

Background

At present, in the field of high-voltage circuits, it is quite common to arrange switching equipment indoors, and there are many switching equipment at present, but the alternating-current metal closed ring network switching equipment is deeply favored by wide users due to long service life and good working efficiency.

Since the ac metal-enclosed ring network switchgear is usually installed indoors, the safety problem is important, and during the operation thereof, the existing ac metal-enclosed ring network switchgear is provided with a short-circuit overload protection structure, such as a current limiting fuse, which is a fuse capable of safely cutting off all possible current within the range of cutting off rated current and current limiting, and limiting the fusing time at rated voltage to be equal to or less than the first main current wave or symmetrical current wave period, while limiting the passing current to be less than the peak current; however, the current limiting fuse is mostly used in a switch cabinet by directly fixing a base in the cabinet through a plurality of groups of screws, and the screws are required to be repeatedly assembled and disassembled when the whole current limiting protection structure is required to be maintained or parts are replaced, so that the workload of a user is improved.

Disclosure of Invention

The utility model aims to provide indoor alternating current metal closed ring network switch equipment with current limiting protection, and the utility model utilizes a magnetic field generating mechanism of a conductive coil to perform current limiting protection on an integrated circuit by adopting magnetic attraction, and after current limiting, the integrated circuit does not need repeated disassembly, only needs plugging installation, thereby greatly facilitating subsequent use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the indoor alternating current metal closed ring network switch equipment with the current limiting protection comprises a ring network switch cabinet and a current limiting protection box arranged in the ring network switch cabinet, wherein a metal rod is fixed in the ring network switch cabinet, a conductive coil is wound outside the metal rod, a first wire is arranged between one end of the conductive coil and an internal switch of the ring network switch cabinet, the other end of the conductive coil is connected with an external power supply of a second wire, the first wire is inserted into the side surface of the current limiting protection box, a metal thimble connected with the first wire is arranged above the first wire, the second wire and the conductive coil are connected in series, and in an electrified state, and the metal thimble and the metal rod are magnetically attracted.

Further, one side of the current limiting protection box is hinged with a cover plate.

Furthermore, the outside of the metal bar is provided with a U-shaped insulating support rod, and the U-shaped insulating support rods are symmetrically arranged on the metal bar and are fixed at the top of the current-limiting protection box.

Further, the current-limiting protection box is fixed with the grafting connecting block near first wire side, and the inside metal guide piece that is fixed with of grafting connecting block is located grafting connecting block top position department, and current-limiting protection box side corresponds metal bar position department and is equipped with the jack.

Further, the first wire is fixed with the bayonet socket near grafting connecting block end, and the bayonet socket is inside to be fixed with equally the metal guide piece, and the bayonet socket upper end is fixed with the link, and the link is kept away from the plug head end and is fixed with the clamp plate, clamp plate with metal thimble fixed connection, metal thimble gets into along the jack.

Further, the outside of being located the jack still is equipped with the spring of fixing in the current-limiting protection case side, and the spring is equipped with two, and the symmetry sets up, and two springs keep away from current-limiting protection case end and are fixed with the baffle, and the baffle middle part is equipped with the through-hole and supplies the metal thimble passes through.

Further, near the second wire, a guiding hole is formed in the side face of the current-limiting protection box, a rubber sealing sheet is fixed in the guiding hole, and the second wire penetrates through the rubber sealing sheet and extends out of the current-limiting protection box.

Further, the connecting frame is provided with a pressing groove.

The beneficial effects of the utility model are as follows:

1. set up conductive coil and metal bar, based on the holistic electric current increase of series circuit, wherein the electric current of each part of establishing ties reduces, and then the magnetic field intensity that produces reduces in conductive coil department presentation, and after the magnetic field intensity reduces, the metal bar weakens to the magnetism between the metal thimble, and then breaks off whole return circuit, reaches the effect of current limiting protection, if the electric current is transverted, under the resilience effect of spring, the metal thimble can push out the current limiting guard box fast, and then whole return circuit disconnection, realizes the protection of breaking circuit fast, and direct grafting when using once more simultaneously, convenient to use.

2. The rubber sealing plate is fixed inside the guide-out hole near the second lead-out hole, the second lead-out hole penetrates through the rubber sealing plate and extends out of the current-limiting protection box, dust entering the inside of the current-limiting protection box can be avoided due to the arrangement of the rubber sealing plate, and accordingly the influence on normal operation of the current-limiting protection box is reduced.

3. The screw of the current limiting protection box is arranged inside the ring network switch cabinet, so that the installation and the subsequent maintenance are convenient.

Drawings

FIG. 1 is a schematic diagram of an indoor AC metal closed loop network switchgear with current limiting protection according to the present utility model;

fig. 2 is a schematic diagram of a current-limiting protection box structure of an indoor ac metal closed loop network switch device with current-limiting protection provided by the utility model;

FIG. 3 is a schematic diagram of the structure of the lead-out hole of the indoor AC metal closed loop network switch device with current limiting protection provided by the utility model;

fig. 4 is an enlarged schematic diagram of the indoor ac metal closed loop network switch device with current limiting protection in fig. 2.

In the figure: 1. a ring network switch cabinet; 2. a current limiting protection box; 3. a metal rod; 4. a conductive coil; 5. a first wire; 6. a second wire; 7. a metal thimble; 8. a cover plate; 9. u-shaped insulating support rods; 10. inserting a connecting block; 11. a metal guide piece; 12. a jack; 13. a plug; 14. a connecting frame; 15. a pressing plate; 16. a spring; 17. a baffle; 18. a lead-out hole; 19. a rubber sealing sheet; 20. and (5) pressing a groove.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

Referring to fig. 1 to 4, the following describes an indoor ac metal closed loop network switchgear with current limiting protection according to an embodiment of the present utility model in detail.

As shown in fig. 1, the indoor alternating current metal closed ring network switch device with current limiting protection comprises a ring network switch cabinet 1, and a current limiting protection box 2 arranged in the ring network switch cabinet 1, wherein the current limiting protection box 2 is arranged at the bottom of the ring network switch cabinet 1 in a screw manner, a metal rod 3 is fixed in the current limiting protection box 2, a conductive coil 4 is wound outside the metal rod 3, a first wire 5 is arranged between one end of the conductive coil 4 and an internal switch of the ring network switch cabinet 1, the other end of the conductive coil is connected with a second wire 6 to be externally connected with a power supply, the first wire 5 is inserted into the side surface of the current limiting protection box 2, a metal thimble 7 connected with the first wire 5 is arranged above the first wire 5, the second wire 6 is connected with the conductive coil 4 in series, and in an electrified state, and the metal thimble 7 and the metal rod 3 are magnetically attracted.

As described above, in this embodiment, the current based on the whole series circuit is increased, wherein the current of each part connected in series is reduced, and the generated magnetic field strength is reduced at the position of the conductive coil 4, and after the magnetic field strength is reduced, the magnetic attraction between the metal rod 3 and the metal thimble 7 is reduced, so that the whole loop is disconnected, and the effect of current limiting protection is achieved.

Further, be equipped with the indent 20 on link 14, make things convenient for the staff to take, when specifically installing, because current-limiting protection box 2 is close to first wire 5 side and is fixed with plug connection block 10, plug connection block 10 inside is fixed with metal guide plate 11, be located plug connection block 10 top position department, current-limiting protection box 2 side corresponds metal bar 3 position department and is equipped with jack 12, first wire 5 is close to plug connection block 10 end and is fixed with jack 13, the inside same being fixed with of jack 13 metal guide plate 11, jack 13 upper end is fixed with link 14, link 14 is kept away from jack 13 end and is fixed with clamp plate 15, clamp plate 15 with metal thimble 7 fixed connection, metal thimble 7 gets into along jack 12, be located simultaneously the jack 12 outside still is equipped with the spring 16 of fixing in current-limiting protection box 2 side, spring 16 is equipped with two, the symmetry sets up, two springs 16 keep away from current-limiting protection box 2 end and are fixed with baffle 17, the middle part is equipped with the through-hole and supplies metal thimble 7 passes through, and then when connecting, get into jack 10 with jack 13 grafting, inside two conducting plate contact with metal guide plate 11, simultaneously second wire 6, the time point 6 forms the metal thimble 7 and then gets into the magnetic circuit back at the time of the metal wire 7, and then the metal wire 7 is in the compression state is followed to the metal wire 7, and the metal wire 7 is in the metal loop is compressed down, and the metal loop is then the metal loop is in the jack 3 according to the current-limiting protection box.

In addition, be connected with apron 8 in articulated on current-limiting protection case 2 one side, wherein the metal bar 3 outside is equipped with the insulating bracing piece 9,U type of U type and is equipped with two about metal bar 3 symmetry, all fixes at current-limiting protection case 2 top, further in being close to second wire 6 department, current-limiting protection case 2 side has seted up export hole 18, export hole 18 inside is fixed with rubber seal piece 19, second wire 6 passes rubber seal piece 19 and stretches out current-limiting protection case 2, the setting of rubber seal piece 19 can avoid current-limiting protection case 2 inside entering dust, in order to reduce the influence to its normal work.

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

Claims

1. Indoor alternating current metal-enclosed looped netowrk switchgear with current-limiting protection, including looped netowrk switch cabinet (1), install current-limiting protection case (2) inside looped netowrk switch cabinet (1), its characterized in that, current-limiting protection case (2) screw-mount is in looped netowrk switch cabinet (1) bottom, current-limiting protection case (2) inside is fixed with metal rod (3), metal rod (3) outside winding has conducting coil (4), set up first wire (5) between conducting coil (4) one end and the inside switch of looped netowrk switch cabinet (1), second wire (6) external power supply is connected to the other end, first wire (5) are pegged graft in current-limiting protection case (2) side, be equipped with metal thimble (7) of being connected with it above first wire (5), connect in series between first wire (5), second wire (6) and conducting coil (4), the circular telegram state, metal thimble (7) are inhaled with metal rod (3) magnetism.

2. Indoor alternating current metal closed loop network switch equipment with current limiting protection according to claim 1, characterized in that one side of the current limiting protection box (2) is hinged with a cover plate (8).

3. The indoor alternating current metal closed ring network switch equipment with current limiting protection according to claim 1, wherein the metal rod (3) is externally provided with a U-shaped insulating support rod (9), and the U-shaped insulating support rod (9) is symmetrically provided with two metal rods (3) and is fixed at the top of the current limiting protection box (2).

4. The indoor alternating current metal closed ring network switch device with current limiting protection according to claim 1, wherein an inserting connection block (10) is fixed on the side, close to the first lead (5), of the current limiting protection box (2), a metal guide sheet (11) is fixed inside the inserting connection block (10), the inserting connection block is located at the position above the inserting connection block (10), and an inserting hole (12) is formed in the side face of the current limiting protection box (2) corresponding to the position of the metal rod (3).

5. The indoor alternating current metal closed ring network switch device with current limiting protection according to claim 4, wherein the first conducting wire (5) is fixed with a plug connector (13) near the end of the plug connection block (10), the metal guide sheet (11) is also fixed inside the plug connector (13), a connecting frame (14) is fixed at the upper end of the plug connector (13), a pressing plate (15) is fixed at the end of the connecting frame (14) far away from the plug connector (13), the pressing plate (15) is fixedly connected with the metal thimble (7), and the metal thimble (7) enters along the jack (12).

6. The indoor alternating current metal closed ring network switch device with current limiting protection according to claim 4, wherein springs (16) fixed on the side surfaces of the current limiting protection box (2) are further arranged outside the jack (12), the springs (16) are symmetrically arranged, a baffle (17) is fixed at the end, away from the current limiting protection box (2), of the two springs (16), and a through hole is formed in the middle of the baffle (17) for the metal thimble (7) to pass through.

7. Indoor alternating current metal closed ring network switch equipment with current limiting protection according to claim 1, characterized in that, near the second wire (6), a guiding hole (18) is opened at the side of the current limiting protection box (2), a rubber sealing sheet (19) is fixed in the guiding hole (18), and the second wire (6) passes through the rubber sealing sheet (19) and extends out of the current limiting protection box (2).

8. Indoor ac metal closed loop network switch equipment with current limiting protection according to claim 5, characterized in that the connection rack (14) is provided with a pressing groove (20).