CN221573672U - Overvoltage protection equipment is prevented to direct current reactor - Google Patents

Overvoltage protection equipment is prevented to direct current reactor Download PDF

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Publication number
CN221573672U
CN221573672U CN202322976429.1U CN202322976429U CN221573672U CN 221573672 U CN221573672 U CN 221573672U CN 202322976429 U CN202322976429 U CN 202322976429U CN 221573672 U CN221573672 U CN 221573672U
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reactor main
metal wiring
main body
direct current
wiring board
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CN202322976429.1U
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Chinese (zh)
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陆林江
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Hangzhou Zhuosheng Electric Co ltd
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Hangzhou Zhuosheng Electric Co ltd
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Abstract

The utility model discloses overvoltage protection equipment for a direct current reactor, which relates to the technical field of direct current reactors and comprises a reactor main body, a top frame, a metal lamination group and a bracket, wherein the metal lamination group is arranged at the top and the bottom of the reactor main body, the top frame is arranged at the top of the reactor main body, the bracket is arranged at the bottom of the reactor main body, three groups of first metal wiring boards are arranged on the upper side and the lower side of the front side wall of the reactor main body, a protection mechanism is arranged on the first metal wiring boards, and the protection mechanism comprises a protection box, a second metal wiring board, a first copper bar, a second copper bar, an insulating seat and a fuse. According to the utility model, when the voltage entering the reactor main body is too high, the fuse wire can be automatically blown by heat generated by the too high voltage through the arranged protection mechanism, so that a circuit of the fuse wire is cut off, the too high voltage is prevented from entering the reactor main body, and the safety and the service life of the reactor main body are improved.

Description

Overvoltage protection equipment is prevented to direct current reactor
Technical Field
The utility model relates to the technical field of direct current reactors, in particular to overvoltage protection equipment for a direct current reactor.
Background
The direct current reactor, also called smoothing reactor, is mainly used on the direct current side of the converter, has more applications on the universal frequency converter, and most of direct current reactors are connected with the guide by utilizing wiring holes on the metal wiring board when being connected with external wires, but most of the existing metal wiring boards are fixedly welded on the direct current reactors, so that the adjustment is inconvenient, the adjustment of the metal wiring boards is inconvenient under different environments, and the installation efficiency is affected.
The current China patent (bulletin number: CN 218631619U) provides a direct current reactor of a frequency converter, which comprises a direct current reactor main body, wherein a base is arranged at the bottom of the direct current reactor main body, a top plate is arranged at the top of the direct current reactor main body, three groups of metal columns are respectively arranged on the upper side and the lower side of the front side wall of the direct current reactor main body, the metal wiring board can be conveniently rotated and adjusted, and the metal wiring board can be conveniently adjusted under different environments, so that the frequency converter is convenient to use.
The DC reactor has the following disadvantages when in use: the metal wiring board is usually directly wired, and because an overvoltage protection structure is not arranged, when the voltage input into the inductor through the metal wiring board is too high, the resistor in the reactor can be burnt out, the service life of the reactor is shortened, and therefore, the overvoltage protection equipment for the direct-current reactor is provided to solve the problem.
Disclosure of utility model
The utility model provides overvoltage protection equipment for a direct-current reactor, which solves the technical problems that a metal wiring board is normally directly connected, and because an overvoltage protection structure is not arranged, when the voltage input into an inductor through the metal wiring board is too high, the resistor in the reactor is burnt out, and the service life of the reactor is shortened.
In order to solve the technical problems, the overvoltage protection equipment for the direct current reactor comprises a reactor main body, a top frame, a metal lamination group and a support, wherein the metal lamination group is arranged at the top and the bottom of the reactor main body, the top frame is arranged at the top of the reactor main body, the support is arranged at the bottom of the reactor main body, three groups of first metal wiring boards are arranged on the upper side and the lower side of the front side wall of the reactor main body, and a protection mechanism is arranged on the first metal wiring boards.
Preferably, the protection mechanism comprises a protection box, a second metal wiring board, a first copper bar, a second copper bar, an insulation seat and a fuse, wherein the protection box is arranged at the front end of the first metal wiring board, the second metal wiring board is arranged on the front end face of the protection box, one end, extending to the inside of the protection box, of the first metal wiring board is connected with the first copper bar, one end, extending to the inside of the protection box, of the second metal wiring board is provided with the second copper bar, the insulation seat is arranged in the protection box, the fuse is connected to the insulation seat in a clamping mode, the front end of the fuse is attached to the second copper bar, and the rear end of the fuse is attached to the insulation seat.
Preferably, the insulating seat is provided with a clamping groove, and the insulating seat is connected in a clamping way in the clamping groove.
Preferably, the protective box is made of insulating materials, and a cavity is formed in the protective box in an integrated mode.
Preferably, an opening communicated with the cavity inside the protective box is formed in the top wall of the protective box, a rotating shaft is rotatably connected to the inner side wall of the opening, and a cover plate which is arranged on the reactor main body and used for sealing the opening of the protective box is arranged on the rotating shaft.
Preferably, a sliding groove is formed in the inner top wall of the protective box, a clamping rod is slidably mounted in the sliding groove, a positioning groove for clamping the clamping rod is formed in the cover plate, a supporting spring is further mounted on the inner wall of the sliding groove, the other end of the supporting spring is connected with the side wall of the clamping rod, a pull rod is further connected to the bottom end of the clamping rod, and one end, away from the clamping rod, of the pull rod penetrates through the side wall of the protective box and extends to the outside of the protective box.
Preferably, a sliding hole is formed in the side wall of the protective box, and the pull rod is arranged in the sliding hole in a sliding mode.
Preferably, two support springs are arranged, and the two support springs are arranged at an upper and lower interval.
Compared with the related art, the overvoltage protection device for the direct-current reactor has the following beneficial effects:
According to the utility model, the power wire connected with the first metal wiring board is fixed through the second metal wiring board, when wiring operation is completed, the reactor main body starts to work, when the voltage entering the reactor main body is too high, the fuse wire is automatically blown by heat generated by the too high voltage, a circuit is cut off, the too high voltage is prevented from entering the reactor main body, and the safety and the service life of the reactor main body are improved.
According to the utility model, the clamping rod can be driven to be separated from the inside of the positioning groove by pulling the pull rod to move outwards, the cover plate can be rotated and opened at the moment, the blown fuse wire is taken out from the insulating seat, a new fuse wire is replaced, then the cover plate is rotated and closed, the clamping rod is pushed to be clamped into the positioning groove by utilizing the elasticity of the supporting spring, the cover plate is fixed, the reactor main body of the reactor is enabled to be continuously and normally used, the structure is simple, the operation is convenient, and the long-term use of the protection mechanism is ensured.
Drawings
Fig. 1 is a schematic diagram of a front view of overvoltage protection equipment for a dc reactor;
fig. 2 is a schematic diagram of a rear view structure of overvoltage protection equipment for a dc reactor;
fig. 3 is a schematic diagram showing a sectional top view of a protective case in overvoltage protection equipment for a dc reactor;
Fig. 4 is a schematic diagram showing a side sectional structure of a protective case in overvoltage protection equipment for a dc reactor.
Reference numerals in the drawings: 1. a reactor main body; 2. a top frame; 3. a metal lamination stack; 4. a bracket; 5. a first metal wiring board; 6. a protective box; 7. a second metal wiring board; 8. a rotating shaft; 9. a cover plate; 10. a chute; 11. a support spring; 12. a clamping rod; 13. a positioning groove; 14. a pull rod; 15. a first copper bar; 16. a second copper bar; 17. an insulating base; 18. and a fuse.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
1-4, A direct current reactor overvoltage protection device comprises a reactor main body 1, a top frame 2, a metal lamination group 3 and a support 4, wherein the metal lamination group 3 is arranged at the top and the bottom of the reactor main body 1, the top frame 2 is arranged at the top of the reactor main body 1, the support 4 is arranged at the bottom of the reactor main body 1, three groups of first metal wiring boards 5 are arranged on the upper side and the lower side of the front side wall of the reactor main body 1, a protection mechanism is arranged on the first metal wiring boards 5, the protection mechanism comprises a protection box 6, a second metal wiring board 7, a first copper bar 15, a second copper bar 16, an insulation seat 17 and a fuse 18, the protection box 6 is arranged at the front end of the first metal wiring board 5, the second metal wiring board 7 is arranged on the front end face of the protection box 6, one end of the first metal wiring board 5 extending to the inside the protection box 6 is connected with the first copper bar 15, one end of the second metal wiring board 7 extending to the inside the protection box 6 is provided with the second copper bar 16, the inside the protection box 6 is provided with an insulation seat 17, the insulation seat 17 is connected with the fuse 18, and the front end of the insulation seat 18 is connected with the second fuse 18 and the front end of the insulation seat 18 is in a joint with the fuse 18;
In specific implementation, the power line connected with the first metal wiring board 5 is fixed through the second metal wiring board 7, after wiring operation is completed, the reactor main body 1 starts to work, when the voltage entering the reactor main body 1 is too high, the fuse 18 is automatically blown by heat generated by the too high voltage, the circuit is cut off, the too high voltage is prevented from entering the reactor main body 1, and the safety and the service life of the reactor main body 1 are improved.
Referring to fig. 4, in order to facilitate the installation of the fuse 18, a clamping groove is formed in the insulating base 17, and the insulating base 17 is connected to the inside of the clamping groove in a clamping manner.
In addition, in order to improve the security that protective structure used, protective housing 6 is insulating material, and the inside integrated into one piece of protective housing 6 has the cavity.
1-4, On the basis of the first embodiment, an opening communicated with an internal cavity of the protective box 6 is formed in the top wall of the protective box 6, a rotating shaft 8 is rotatably connected to the inner side wall of the opening, a cover plate 9 which is arranged on the reactor main body 1 in a covering manner and is used for sealing the opening of the protective box 6 is arranged on the rotating shaft 8, a sliding groove 10 is formed in the inner top wall of the protective box 6, a clamping rod 12 is slidably arranged in the sliding groove 10, a positioning groove 13 for clamping the clamping rod 12 is formed in the cover plate 9, a supporting spring 11 is further arranged on the inner wall of the sliding groove 10, the other end of the supporting spring 11 is connected with the side wall of the clamping rod 12, a pull rod 14 is further connected to the bottom end of the clamping rod 12, and one end, far away from the clamping rod 12, of the pull rod 14 penetrates through the side wall of the protective box 6 and extends to the outside of the protective box 6;
During the implementation, can drive the draw-bar 12 and break away from the inside of constant head tank 13 through pulling pull rod 14 outwards to remove, can rotate apron 9 and open this moment, take out the fuse 18 that blows from insulating seat 17, change with new fuse 18, then with apron 9 rotatory closure again, utilize the elasticity of supporting spring 11 to promote draw-bar 12 card into constant head tank 13, fix apron 9, can make its reactor main part 1 continue normal use, and a structure is simple, and convenient operation ensures that protection machanism can use for a long time.
Referring to fig. 3, in order to ensure that the pull rod 14 can slide horizontally along the protection box 6, a sliding hole is formed in the side wall of the protection box 6, the pull rod 14 is slidably disposed in the sliding hole, and in addition, in order to enable the clamping rod 12 to be stably clamped in the positioning groove 13, two support springs 11 are provided, and the two support springs 11 are disposed at an upper-lower interval.
Working principle: the power line connected with the first metal wiring board 5 is fixed through the second metal wiring board 7, after wiring operation is completed, the reactor main body 1 starts to work, when the voltage entering the reactor main body 1 is too high, the fuse 18 is automatically blown by heat generated by the too high voltage, a circuit is cut off, the too high voltage is prevented from entering the reactor main body 1, the safety and the service life of the reactor main body 1 are improved, the clamping rod 12 can be driven to be separated from the inside of the positioning groove 13 by pulling the pull rod 14 to move outwards, the cover plate 9 can be rotated to be opened at the moment, the blown fuse 18 is taken out from the insulating seat 17, the new fuse 18 is replaced, then the cover plate 9 is rotated to be closed, the clamping rod 12 is pushed to be clamped into the positioning groove 13 by the elastic force of the supporting spring 11, the cover plate 9 is fixed, the reactor main body 1 can be continuously and normally used, the structure is simple, the operation is convenient, and the protection mechanism can be ensured to be used for a long time.
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 (8)

1. The utility model provides a overvoltage protection equipment is prevented to direct current reactor, includes reactor main part (1), roof-rack (2), metal lamination group (3) and support (4), its characterized in that, metal lamination group (3) set up the top and the bottom in reactor main part (1), roof-rack (2) are installed at reactor main part (1) top, support (4) are installed in reactor main part (1) bottom, both sides all are equipped with three first metal wiring board (5) of group about the lateral wall before reactor main part (1), be provided with protection machanism on first metal wiring board (5).
2. The overvoltage protection device for the direct current reactor according to claim 1, wherein the protection mechanism comprises a protection box (6), a second metal wiring board (7), a first copper bar (15), a second copper bar (16), an insulation seat (17) and a fuse wire (18), the protection box (6) is installed at the front end of the first metal wiring board (5), the second metal wiring board (7) is installed on the front end face of the protection box (6), one end, extending to the inside of the protection box (6), of the first metal wiring board (5) is connected with the first copper bar (15), one end, extending to the inside of the protection box (6), of the second metal wiring board (7) is provided with the second copper bar (16), the insulation seat (17) is installed in the inside of the protection box (6), the fuse wire (18) is connected with the fuse wire (18) in a clamping mode, and the front end of the fuse wire (18) is attached to the second copper bar (16), and the rear end of the fuse wire (18) is attached to the insulation seat (17).
3. The overvoltage protection device for the direct current reactor according to claim 2, wherein the insulating base (17) is provided with a clamping groove, and the insulating base (17) is connected inside the clamping groove in a clamping way.
4. The overvoltage protection device for the direct current reactor according to claim 2, wherein the protection box (6) is made of an insulating material, and a cavity is integrally formed in the protection box (6).
5. The overvoltage protection device for the direct current reactor according to claim 2, wherein an opening communicated with the internal cavity of the protective box (6) is formed in the top wall of the protective box, a rotating shaft (8) is rotatably connected to the inner side wall of the opening, and a cover plate (9) which is arranged on the reactor main body (1) in a covering manner and used for sealing the opening of the protective box (6) is arranged on the rotating shaft (8).
6. The overvoltage protection device for the direct-current reactor according to claim 5, wherein a chute (10) is formed in the inner top wall of the protective box (6), a clamping rod (12) is slidably mounted in the chute (10), a positioning groove (13) for clamping the clamping rod (12) is formed in the cover plate (9), a supporting spring (11) is further mounted on the inner wall of the chute (10), the other end of the supporting spring (11) is connected with the side wall of the clamping rod (12), a pull rod (14) is further connected to the bottom end of the clamping rod (12), and one end, far away from the clamping rod (12), of the pull rod (14) penetrates through the side wall of the protective box (6) to extend to the outside of the protective box (6).
7. The overvoltage protection device for the direct current reactor according to claim 6, wherein a sliding hole is formed in the side wall of the protective box (6), and the pull rod (14) is slidably arranged in the sliding hole.
8. The overvoltage protection device for the direct current reactor according to claim 6, wherein two supporting springs (11) are provided, and the two supporting springs (11) are arranged at an upper and lower interval.
CN202322976429.1U 2023-11-04 2023-11-04 Overvoltage protection equipment is prevented to direct current reactor Active CN221573672U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322976429.1U CN221573672U (en) 2023-11-04 2023-11-04 Overvoltage protection equipment is prevented to direct current reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322976429.1U CN221573672U (en) 2023-11-04 2023-11-04 Overvoltage protection equipment is prevented to direct current reactor

Publications (1)

Publication Number Publication Date
CN221573672U true CN221573672U (en) 2024-08-20

Family

ID=92287920

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322976429.1U Active CN221573672U (en) 2023-11-04 2023-11-04 Overvoltage protection equipment is prevented to direct current reactor

Country Status (1)

Country Link
CN (1) CN221573672U (en)

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