CN110797239A

CN110797239A - Fuse cylinder and cylinder body thereof

Info

Publication number: CN110797239A
Application number: CN201911089338.8A
Authority: CN
Inventors: 吴小钊; 徐慧强; 李长鹏; 李鹏; 李俊豪; 汤清双; 曹志民; 赵莹; 周行; 王廷华; 杜连杰; 李耀耀
Original assignee: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC CO Ltd; State Grid Corp of China SGCC; Xuji Group Co Ltd
Current assignee: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC CO Ltd; State Grid Corp of China SGCC; Xuji Group Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-02-14
Anticipated expiration: 2039-11-08
Also published as: CN110797239B

Abstract

The invention provides a fuse cylinder and a cylinder body thereof, wherein the cylinder body of the fuse cylinder is provided with: the wire inlet conductor is used for being in conductive connection with a contact at one end of the fuse; the outgoing line conductor is used for being in conductive connection with a contact at the other end of the fuse; the cylinder body is internally provided with: the mounting seat is used for installing one end contact of the fuse and is in conductive connection with the contact, the mounting seat is in conductive connection with the incoming line conductor or the outgoing line conductor, the mounting seat is detachably connected in the barrel and is adjustable in position relative to the barrel in the length direction of the barrel, and an adjusting structure used for adjusting the position of the mounting seat is arranged in the barrel. Has the advantages that: for switch cabinets with different voltage grades, only one specification of cylinder can be manufactured, when the fuse cylinder is assembled, the mounting seat is firstly adjusted to a proper position according to the applied voltage grade, so that the fuse with a specific length can be mounted in the cylinder, the position of the mounting seat is changed, the adaptive voltage grade can be changed, the cylinders with various specifications do not need to be manufactured, and the manufacturing cost is greatly reduced.

Description

Fuse cylinder and cylinder body thereof

Technical Field

The invention relates to a fuse tube and a tube body thereof.

Background

The fuse tube is one of indispensable important parts in the switch cabinet, generally comprises a tube body and a fuse installed in the tube body, and when the current is too large due to short circuit in a main circuit, the fuse wire of the fuse fuses to break the main circuit, so that the switch cabinet is protected safely.

The chinese utility model patent that the bulletin number is CN207303030U discloses a fuse and use fuse section of thick bamboo of this fuse, and fuse section of thick bamboo includes hollow structure's barrel, installs the fuse in the barrel, is provided with inlet wire end and leading-out terminal on the barrel, and the inlet wire end is in order through the one end of inlet wire bar copper and inlet electrical contact buckle connection fuse, and the leading-out terminal is in order through the other end of outlet wire bar copper, the electrically conductive finger that is qualified for the next round of competitions, electrically conductive copper post and outlet electrical contact buckle connection fuse.

The distance between the incoming contact buckle and the outgoing contact buckle in the fuse cylinder is fixed, in other words, only a certain specification of fuse can be installed in the cylinder, but in practical application, switch cabinets with different voltage grades have different requirements on the insulation distance of the fuse, the higher the voltage grade is, the larger the required insulation distance is, for example, common switch cabinets with 12kV and 24kV have different lengths of the fuse, and the fuse cylinder can only be suitable for switch cabinets with one voltage grade. At present, in order to adapt to switch cabinets with different voltage grades, fuse tube barrels with different specifications need to be manufactured, fuses with different lengths need to be installed, and therefore multiple sets of barrel manufacturing dies need to be prepared, and manufacturing cost is high.

Disclosure of Invention

The invention aims to provide a cylinder body of a fuse cylinder, which can adapt to switch cabinets with different voltage levels and can reduce the manufacturing cost; the invention also aims to provide the fuse tube which can adapt to switch cabinets with different voltage levels and can reduce the manufacturing cost.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a barrel body of a fuse barrel is provided with:

the wire inlet conductor is used for being in conductive connection with a contact at one end of the fuse;

the outgoing line conductor is used for being in conductive connection with a contact at the other end of the fuse;

be provided with in the barrel:

the mounting seat is used for installing a contact at one end of the fuse and is in conductive connection with the contact, the mounting seat is in conductive connection with the incoming line conductor or the outgoing line conductor, the mounting seat is detachably connected in the barrel and is adjustable in position relative to the barrel in the length direction of the barrel, and an adjusting structure used for adjusting the position of the mounting seat is arranged in the barrel.

The technical scheme of the cylinder body of the fuse cylinder has the beneficial effects that: because the installation seat is arranged in the barrel for installing the contact at one end of the fuse, the installation seat is detachably connected in the barrel, the adjusting structure for adjusting the position of the installation seat is arranged in the barrel, so that the position of the installation seat relative to the barrel in the length direction of the barrel can be adjusted, the barrel with one specification can be manufactured for switch cabinets with different voltage classes, then only when the fuse cylinder is assembled, the installation seat is firstly adjusted to a proper position according to the voltage class of the switch cabinet applied by the fuse cylinder, so that the fuse with a specific length can be installed in the barrel, therefore, the position of the installation seat is changed, namely the length of the installed fuse is changed, the voltage class which can be adapted can be changed, the barrels with various specifications do not need to be manufactured, the barrel with one specification can meet various use requirements, and the universality is enhanced, greatly reducing the manufacturing cost.

Further, for the setting of conveniently adjusting the structure, adjust the structure including fixing the dead lever in the barrel, mount pad releasable connection is on the dead lever, is provided with the regulation hole that is used for adjusting the mount pad position on the dead lever.

Further, in order to finely adjust the position of the mounting seat, the adjusting hole is a long hole extending along the length direction of the cylinder, and the mounting seat is fixed on the fixing rod by a fastening piece penetrating through the long hole.

Further, for the setting of convenient mount pad and the installation of fuse contact, the mount pad includes the mounting panel and fixes the electrically conductive buckle of elasticity on the mounting panel.

Furthermore, in order to facilitate the manufacturing and installation of the cylinder body and ensure creepage distance, one end of the cylinder body is an open end, the other end of the cylinder body is a closed end, a fixed shaft used for fixing the cylinder body on the switch cabinet is arranged on the closed end, and an insulating umbrella skirt is arranged on the surface of the fixed shaft.

In order to achieve the purpose, the fuse tube adopts the following technical scheme:

the utility model provides a fuse tube, includes barrel, cover and installs the fuse in the barrel, is provided with on the barrel:

the wire inlet conductor is in conductive connection with a contact at one end of the fuse;

the outgoing line conductor is in conductive connection with the contact at the other end of the fuse;

be provided with in the barrel:

The technical scheme of the fuse tube has the beneficial effects that: because the installation seat is arranged in the barrel for installing the contact at one end of the fuse, the installation seat is detachably connected in the barrel, the adjusting structure for adjusting the position of the installation seat is arranged in the barrel, so that the position of the installation seat relative to the barrel in the length direction of the barrel can be adjusted, the barrel with one specification can be manufactured for switch cabinets with different voltage classes, then only when the fuse cylinder is assembled, the installation seat is firstly adjusted to a proper position according to the voltage class of the switch cabinet applied by the fuse cylinder, so that the fuse with a specific length can be installed in the barrel, therefore, the position of the installation seat is changed, namely the length of the installed fuse is changed, the voltage class which can be adapted can be changed, the barrels with various specifications do not need to be manufactured, the barrel with one specification can meet various use requirements, and the universality is enhanced, greatly reducing the manufacturing cost.

Further, in order to guarantee the leakproofness and the insulating nature of cover, the cover includes the path section inside with barrel hole interference fit's big footpath section and being located the barrel, is provided with insulating full skirt on the path section.

Drawings

FIG. 1 is a block diagram of one embodiment of a fuse cartridge of the present invention.

In the figure: 1. fixing a sleeve; 2. a cylinder cover; 3. a conductive stud; 4. a conductive card; 5. a barrel; 6. a fuse; 7. an elastic conductive buckle; 8. fixing the rod; 9. soft connection; 10. a silica gel umbrella skirt; 11. a fixed shaft; 12. a seal ring; 13. an outgoing line copper bar; 14. a nut; 15. a fixing clip; 16. a seal ring; 17. mounting a plate; 18. and adjusting the hole.

Detailed Description

One embodiment of the fuse cartridge of the present invention is shown in fig. 1 and includes a cartridge body 5, a cartridge cover 2 fixed to the top of the cartridge body 5, and a fuse 6 mounted in the cartridge body 5. Be provided with the inlet wire conductor and the conductor of being qualified for the next round of competitions on barrel 5, wherein, the conductor of being qualified for the next round of competitions is including setting up the copper bar 13 of being qualified for the next round of competitions in barrel 5 bottom and wearing out barrel 5, and the inlet wire conductor is including fixing the conductive stud 3 on barrel 5, and barrel 5 inboard is provided with the conductive card 4 with conductive stud 3 conductive contact, and the upper end contact and the fixation clamp 15 conductive connection of fuse 6, fixation clamp 15 and conductive card 4 conductive contact.

Still be provided with the lower extreme contact that is used for installing fuse 6 in the barrel 5 and with the mount pad of this contact conductive connection, the mount pad in this embodiment includes mounting panel 17 and fixes the electrically conductive buckle 7 of elasticity on mounting panel 17, is provided with the regulation structure that is used for adjusting the mounting panel 17 position in the barrel 5, and the regulation structure in this embodiment is including fixing the dead lever 8 on 5 inner walls of barrel, and mounting panel 17 releasable connection is on dead lever 8, is provided with the regulation hole 18 that is used for adjusting the mounting panel 17 position on the dead lever 8.

Specifically, the adjustment hole 18 is a long hole extending in the longitudinal direction of the cylinder 5, that is, in fig. 1, the adjustment hole 18 is a long hole extending vertically. The mounting plate 17 is welded and fixed with a stud penetrating through the adjusting hole 18, the stud is connected with a nut 14, the stud slides up and down in the long hole, the up-down position of the mounting plate 17 can be changed, and then the nut 14 is screwed, so that the mounting plate 17 can be fixed.

The mounting plate 17 and the fixing rod 8 in the embodiment are made of conductive materials, the fixing rod 8 is in an L shape, the bottom of the fixing rod 8 and the outgoing line copper bar 13 are connected through the flexible connection 9, and therefore the lower end contact of the fuse 6 conducts current through the elastic conductive buckle 7, the mounting plate 17, the fixing rod 8, the flexible connection 9 and the outgoing line copper bar 13 to conduct the current.

The upper end of the cylinder 5 is an open end, the lower end of the cylinder 5 is a closed end, a fixed shaft 11 used for fixing the cylinder 5 on the switch cabinet is arranged on the closed end, an insulating umbrella skirt is arranged on the surface of the fixed shaft 11, the insulating umbrella skirt in the embodiment is a silica gel umbrella skirt 10 wrapped on the surface of the fixed shaft 11 through a vulcanization process, and the silica gel umbrella skirt 10 meets the requirement of increasing creepage distance. And a sealing ring 12 is provided between the fixed shaft 11 and the bottom of the cylinder 5 in order to ensure sealability.

The cover 2 is connected with the fixing clamp 15 and the fuse 6, and can be connected outside the cylinder body firstly and then integrally installed in the cylinder body when being assembled. Cover 2 includes with 5 hole interference fit's of barrel big footpath sections and be located the inside path section of barrel 5, is provided with insulating full skirt in the path section, has guaranteed the leakproofness of barrel on the one hand, and creepage distance and insulating properties have been guaranteed to on the other hand. The top of the cylinder 5 is also fixed with a fixed sleeve 1 for fixing the cylinder 5 on the switch cabinet, the fixed sleeve 1 is provided with a connecting flange for fixedly connecting with the switch cabinet, the fixed sleeve 1 is sleeved outside the cylinder 5, and a sealing ring 16 is arranged between the fixed sleeve 1 and the cylinder 5 for ensuring the sealing property. The inner hole of the fixed sleeve 1 is a stepped hole, the step of the stepped hole is in stop fit with the upper end face of the cylinder 5, and meanwhile, the top end of the cylinder cover 2 is provided with a pressing flange, so that the fixed sleeve 1 is pressed and fixed on the top end of the cylinder.

When the fuse tube is assembled, the mounting plate 17 is adjusted to a proper position according to the voltage grade of a switch cabinet to which the fuse tube is applied, then the nut 14 is screwed and fixed, and the length of a fuse arranged in the tube, namely the insulation distance matched with the voltage grade of the switch cabinet, is determined by the upper position and the lower position of the mounting plate 17. Then, the appropriate fuse 6 is fixed with the fixing clip 15 and the cartridge cover 2, and is loaded into the cartridge body 5 together for fixing, the fixing clip 15 is in conductive contact with the conductive card 4, and the lower end contact of the fuse 6 is fixedly supported on and in conductive contact with the elastic conductive buckle 7.

Therefore, when the barrel is adopted and matched with switch cabinets with different voltage grades, only the barrel with one specification is required to be manufactured, the length of the barrel and the length of the adjusting hole can be ensured, fuses with different specifications can be installed, then only when the fuse tube is assembled, according to the voltage grade of the switch cabinet to which the fuse tube is applied, the position of the mounting seat is adjusted firstly, the position of the mounting seat is changed, the length of the installed fuse is changed, the insulation distance is changed, the voltage grade capable of being adapted can be changed, therefore, barrels with various specifications do not need to be manufactured, the barrel with one specification can meet the use requirements of switch cabinets with different voltage grades, such as 12kV and 24kV, the universality is enhanced, and the manufacturing cost is greatly reduced.

It should be noted that the positional concepts such as "upper end", "lower end", "top", "bottom", etc. mentioned in the above embodiments are merely for explaining the connection relationship among the respective components of the fuse tube, and do not represent the usage state of the fuse tube, for example, the fuse tube may be laid flat when in use.

In other embodiments of the fuse tube, the small-diameter section of the tube cover can be provided with no insulating umbrella skirt; the cylinder cover can also be only composed of a large-diameter section, and the large-diameter section is directly connected with the fixing clamp.

In other embodiments of the fuse tube, the insulating shed on the surface of the fixed shaft may not be made of silica gel, for example, epoxy resin; the insulating umbrella skirt on the surface of the fixed shaft can be molded in a vulcanization mode instead of the vulcanization mode, for example, the insulating umbrella skirt and the cylinder body can be integrally molded by injection molding; the closed end is not provided with a fixed shaft, but is connected with a fixed part on the cylinder body when the fuse cylinder needs to be fixed; both ends of the cylinder body can be open ends, the fuse can be installed from any end, and both ends need to be closed after the installation is finished.

In other embodiments of the fuse cartridge, the mounting block may comprise only a mounting plate, and a slot may be formed in the mounting plate, and the contact at the end of the fuse is inserted directly into the slot and is electrically connected to the mounting plate.

In other embodiments of the fuse tube, the adjusting holes may not be long holes, but a plurality of discrete holes are arranged at intervals up and down, each adjusting hole corresponds to a fuse of one specification, at this time, the position of the mounting seat can still be fixed by matching the stud and the nut, of course, two fixing pins may also be welded and fixed on the fixing seat, and the two fixing pins respectively penetrate into the two adjusting holes, so as to determine the position of the mounting seat.

In other embodiments of the fuse tube, the adjusting structure may not be the adjusting hole, for example, a plurality of T-shaped grooves or dovetail grooves may be disposed on the side surface of the fixing rod facing the inside of the tube body, the T-shaped grooves or dovetail grooves being spaced up and down and extending in the front-rear direction, at this time, a T-shaped block or dovetail block needs to be fixed on the mounting seat, the position of the mounting seat is determined by the cooperation of the T-shaped grooves and the T-shaped block, or the dovetail grooves and the dovetail block, and at this time, a mounting and dismounting space for the T-shaped block or dovetail block to be conveniently mounted in or withdrawn from the corresponding groove needs.

In other embodiments of the fuse tube, the fixing rod may not be disposed in the tube body, but the adjusting structure is directly processed on the inner wall of the tube body.

In other embodiments of the fuse tube, when the lower end of the tube body is an open end, the mounting seat can also be arranged at a position close to the upper end of the tube body, at the moment, the mounting seat is in conductive connection with the incoming line conductor, and the fuse can be installed in the tube body from bottom to top.

In other embodiments of the fuse tube, one end of the flexible connection can be in conductive connection with the outgoing copper bar, and the other end of the flexible connection is in conductive connection with the mounting seat, and the fixing rod does not need to be made of a conductive material; in other embodiments, the flexible connection can be omitted, and the outgoing copper bar is directly in conductive connection with the fixing rod.

In other embodiments of the fuse holder, the fuse may be supported on the mounting seat, the fixing clip may be mounted on the mounting seat, the fixing clip may be fixed to and electrically connected to the conductive clip, and the fuse holder may be mounted on the holder cover.

In other embodiments of the fuse holder, the conductive stud and the conductive card can be replaced by an incoming copper bar, and the outgoing conductor can be replaced by a conductive stud.

The embodiment of the cylinder body of the fuse cylinder in the invention is shown in fig. 1, and the specific structure of the cylinder body of the fuse cylinder is the same as that of the above-mentioned embodiment of the fuse cylinder, and repeated description is omitted here.

Claims

1. A barrel body of a fuse barrel is provided with:

it is characterized in that the cylinder body is internally provided with:

2. The fuse tube body as recited in claim 1, wherein the adjustment structure comprises a fixing rod fixed in the fuse tube body, the mounting seat is detachably connected to the fixing rod, and the fixing rod is provided with an adjustment hole for adjusting the position of the mounting seat.

3. The fuse tube body of claim 2, wherein the adjustment hole is a long hole extending in a length direction of the body, and the mount is fixed to the fixing lever by a fastener passing through the long hole.

4. The fuse tube body as claimed in any one of claims 1 to 3, wherein the mounting base comprises a mounting plate and a resilient conductive snap fixed to the mounting plate.

5. The fuse tube body according to any one of claims 1 to 3, wherein one end of the body is an open end and the other end is a closed end, the closed end is provided with a fixing shaft for fixing the body to a switch cabinet, and an insulating shed is provided on the surface of the fixing shaft.

6. The utility model provides a fuse tube, includes barrel, cover and installs the fuse in the barrel, is provided with on the barrel:

it is characterized in that the cylinder body is internally provided with:

7. The fuse cylinder as recited in claim 6, wherein the adjusting structure comprises a fixing rod fixed in the cylinder, the mounting seat being detachably connected to the fixing rod, the fixing rod being provided with an adjusting hole for adjusting the position of the mounting seat.

8. The fuse cartridge of claim 7, wherein the adjustment hole is a long hole extending along a length of the cartridge body, and the mounting seat is fixed to the fixing lever by a fastener passing through the long hole.

9. The fuse tube according to any one of claims 6 to 8, wherein one end of the tube body is an open end, the other end is a closed end, a fixed shaft for fixing the tube body on the switch cabinet is arranged on the closed end, and an insulating umbrella skirt is arranged on the surface of the fixed shaft.

10. The fuse tube according to any one of claims 6 to 8, wherein the tube cover comprises a large diameter section which is in interference fit with the inner hole of the tube body and a small diameter section which is arranged inside the tube body, and the small diameter section is provided with an insulating umbrella skirt.