CN111863563A

CN111863563A - Fusion tube installation module and high-voltage fuse

Info

Publication number: CN111863563A
Application number: CN202010569867.4A
Authority: CN
Inventors: 熊俊; 王国庆; 焦夏男; 林博勇; 郑嘉禧; 王良; 张国忠; 林创
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2020-10-30

Abstract

The invention relates to the technical field of fuses, in particular to a fusion tube installation module and a high-voltage fuse. The fusion tube installation module comprises a bearing plate and two tube caps which are respectively used for fixing two end heads of a fuse protector; two support columns are arranged on the bearing plate; each supporting column is provided with a shock absorber; and the two pushing assemblies are respectively connected with the two pipe caps and can push the pipe caps to transversely move so as to fix the ends of the fuse. The invention has the beneficial effects that: the invention provides a fusion tube installation module which is used for rapidly fixing contacts at two ends of a fusion tube by pushing a tube cap by adopting a pushing assembly; after the fuse tube is fixed, the contacts at the two ends of the fuse tube are locked through the locking assembly, looseness after the fuse tube is installed is avoided, and normal operation of the fuse is guaranteed.

Description

Fusion tube installation module and high-voltage fuse

Technical Field

The invention relates to the technical field of fuses, in particular to a fusion tube installation module and a high-voltage fuse.

Background

The fuse is widely applied to high-low voltage distribution systems, control systems and electric equipment, is connected with a protected circuit in series, and plays a role in short circuit and overcurrent protection. Fuses are widely produced and used worldwide as a conventional circuit protection device. The fuse is an electric appliance which fuses a melt by heat generated by itself to open a circuit when a current exceeds a predetermined value. The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; a current protector is made by applying the principle. The fuse is widely applied to high-low voltage distribution systems, control systems and electric equipment, and is the most commonly applied protection device as a short circuit and overcurrent protector.

In the installation process of the high-voltage fuse, the contacts at two ends of the fusion tube need to be fixed, the fixing process is relatively complicated, and the connection part is easy to loosen, so that the normal use of the fuse is influenced; meanwhile, heat generated by the fuse wire in the working process is mainly transferred to the closed shell by the quartz sand and then is dissipated by the air on the outer surface, the process is slow, and the heat is accumulated in the fuse tube for a long time to easily influence the service life of the fuse wire.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a fusion tube installation module and a high-voltage fuse to solve the problems that the existing fuse is inconvenient to fix and poor in heat dissipation efficiency.

The technical scheme for solving the technical problems is as follows: a fusion tube installation module comprises a bearing plate and two tube caps respectively used for fixing two end heads of a fuse; two support columns are arranged on the bearing plate; each supporting column is provided with a shock absorber; the two shock absorbers are respectively provided with a pushing assembly which is respectively connected with the two pipe caps, and the pushing assemblies can push the pipe caps to move transversely so as to fix the ends of the fuse; the outside of the pipe cap is also provided with a wiring terminal; the inside of pipe cap still is provided with locking Assembly.

Furthermore, the outside of support column is provided with a plurality of bunch archs that the equidistance was arranged.

Furthermore, the shock absorber is a damping piston, and a damping spring which can deform along with the expansion and contraction of the damping piston is sleeved outside the damping piston.

Further, the pushing assembly comprises a bottom plate, an adjusting part, a connecting rod and a push rod; the tail end of the adjusting part is hinged with one end part of the push rod; one end of the connecting rod is hinged with the middle part of the adjusting part, and the other end of the connecting rod is hinged with the bottom plate; an adjustable triangular structure is formed among the adjusting part, the adjusting part and the connecting rod of the bottom plate.

Further, the top of bottom plate still is equipped with spacing pipe, push rod slidable mounting is in spacing intraductal.

Further, the locking assembly comprises a patch, a plurality of supporting springs and a plurality of guide rods; the supporting springs and the guide rods are uniformly distributed on one side of the patch; wherein, one end of the guide rod extends into a guide groove arranged in the pipe cap.

A high-voltage fuse comprises a tube containing body and a fusion tube mounting module; two ends of the tube containing body are respectively arranged in the two tube caps; the outside of holding the pipe body is equipped with detachable heat dissipation sheath.

Furthermore, the heat dissipation sheath is two semicircular sleeves which can be spliced; the outside of cover shell is provided with a plurality of fin of arranging at intervals.

Further, the inboard of cover shell is provided with the heat conduction pad.

The invention has the beneficial effects that:

1. the invention provides a fusion tube installation module which is used for rapidly fixing contacts at two ends of a fusion tube by pushing a tube cap by adopting a pushing assembly; after the fuse tube is fixed, the contacts at the two ends of the fuse tube are locked through the locking assembly, looseness after the fuse tube is installed is avoided, and normal operation of the fuse is guaranteed.

2. The invention provides a fuse tube installation module, which effectively reduces external impact and vibration by additionally arranging a shock absorber and avoids the phenomenon that a fuse wire is easy to fatigue fracture due to large-amplitude vibration.

3. The invention provides a high-voltage fuse, which is characterized in that a heat dissipation sheath is additionally arranged outside a fusion tube, so that heat generated during the operation of a fuse wire is led out, and heat dissipation is performed through a heat dissipation sheet, so that the heat accumulation inside the fusion tube is avoided.

Drawings

FIG. 1 is a schematic view of the overall construction of a fuse tube installation module according to the present invention;

FIG. 2 is a schematic cross-sectional view of a fuse tube mounting module cap of the present invention showing the structural distribution of the locking assembly;

FIG. 3 is a schematic diagram of the overall structure of the high-voltage fuse of the present invention;

fig. 4 is a side view of the heat dissipation sheath of the present invention.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

The present invention provides the following preferred embodiments:

example one

As shown in fig. 1, the invention specifically relates to a fusion tube mounting module, which comprises a bearing plate 1 and two tube caps 2 respectively used for fixing two end heads of a fuse; the cable support structure comprises a bearing plate 1 and is characterized in that two support columns 3 are mounted on the bearing plate 1, a plurality of harness protrusions 31 which are distributed at equal intervals are arranged outside the support columns 3, and the harness protrusions 31 are used for winding cables; a shock absorber 4 is arranged on each supporting column 3, the shock absorber 4 is a damping piston 41, a damping spring 42 which can deform along with the expansion and contraction of the damping piston 41 is sleeved outside the damping piston 41, and the shock and vibration generated in the operating environment of the whole fuse are absorbed through the damping piston 41 and the damping spring 42, so that the fuse is prevented from fatigue and breakage due to excessive vibration; the two dampers 4 are respectively provided with a pushing assembly 5 which is respectively connected with the two pipe caps 2, and the pushing assemblies 5 can push the pipe caps 2 to transversely move so as to fix the ends of the fuses; the outside of the pipe cap 2 is also provided with a terminal 21, and the terminal 21 is connected with a cable; the inside of pipe cap 2 still is provided with locking Assembly 22, carries out secondary locking to pipe cap 2 through locking Assembly 22, guarantees the fixed stability of fusion tube.

Wherein the pushing assembly 5 comprises a bottom plate 51, an adjusting part 52, a connecting rod 53 and a push rod 54; the push rods 54 in the two groups of pushing assemblies 5 are oppositely arranged; the tail end of the adjusting part 52 is hinged with one end part of a push rod 54, and the push rod 54 is connected with the pipe cap 2; one end of the connecting rod 53 is hinged with the middle part of the adjusting part 52, and the other end is hinged with the bottom plate 51; the adjusting part 52, the adjusting part 52 and the connecting rod 53 of the base plate 51 form an adjustable triangular structure.

Under the triangular structure, the shape of the triangular structure is changed by pushing the adjusting part 51, and the push rod 54 is driven to move along the axial direction; the two push rods 54 respectively drive the two pipe caps 2 to clamp the end heads of the fusion pipes, and then the fusion pipes are fixed.

In order to ensure that the push rod 54 is positioned more accurately, the top of the bottom plate 51 is also provided with a limiting pipe 55, and the push rod 54 is slidably mounted in the limiting pipe 55, so that the push rod 54 moves along the accurate axis of the limiting pipe 55, and the deviation generated when the end head of the fusion tube is fixed is avoided.

In addition, as shown in fig. 2, the locking assembly 22 includes a patch 221, a plurality of supporting springs 222, and a plurality of guide bars 223; a plurality of the supporting springs 222 and a plurality of guide bars 223 are uniformly distributed at one side of the patch 221; wherein, one end of the guide rod 223 extends into the guide groove 23 arranged in the tube cap 2, so as to ensure that the patch 221 moves directionally along the tube cap 2; the paster 211 is arranged in the pipe cap 2 and is used for contacting with the end of the fusion tube, after the end of the fusion tube is placed in the corresponding pipe cap 2, under the support of the support spring 222, the paster 221 can be in close contact with the end of the fusion tube, the locking of contacts at two ends of the fusion tube is realized, the looseness after the installation of the fusion tube is avoided, and the normal operation of the fuse is ensured.

Example two

The present embodiment is different in that, as shown in fig. 3 and 4, the present invention further provides a high voltage fuse, which includes a tube accommodating body 6, and further includes the fuse tube installation module; two ends of the tube containing body 6 are respectively arranged in the two tube caps 2; the detachable heat dissipation sheath 7 is arranged outside the tube containing body 6, the heat dissipation sheath 7 is two spliced semicircular casing shells 71, the two casing shells 71 can be spliced outside the tube containing body 6 after the tube containing body 6 is fixed, and the two casing shells 71 can be fixed by bolts; the casing 71 is externally provided with a plurality of radiating fins 72 arranged at intervals, and the contact area between the radiating fins 72 and air is increased, so that the heat exchange efficiency is improved.

Through add heat dissipation sheath 7 in the outside of holding pipe body 6 to derive the heat of fuse during operation, and dispel the heat through fin 72, thereby avoid the heat to pile up inside the fusion tube, promoted the life of fuse.

In order to improve the efficiency of heat dissipation in the fusion tube, a heat conducting pad 73 is arranged on the inner side of the casing 71, and the heat conducting pad can be made of a silica gel pad.

Particularly for medium-high voltage fuses, the fuse wire is long in length, and fatigue fracture of the fuse wire is easily caused in the processes of impact and vibration;

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A fusion tube installation module is characterized by comprising a bearing plate (1) and two tube caps (2) which are respectively used for fixing two end heads of a fuse protector; two support columns (3) are arranged on the bearing plate (1); each supporting column (3) is provided with a shock absorber (4); the two shock absorbers (4) are respectively provided with a pushing assembly (5) which is respectively connected with the two pipe caps (2), and the pushing assemblies (5) can push the pipe caps (2) to transversely move so as to fix the ends of the fuses; the outside of the pipe cap (2) is also provided with a wiring terminal (21); the pipe cap (2) is also internally provided with a locking assembly (22).

2. A fuse tube mounting module according to claim 1, characterized in that the supporting column (3) is externally provided with a plurality of equidistantly arranged beam projections (31).

3. The fusion tube installation module according to claim 1, wherein the shock absorber (4) is a damping piston (41), and a shock absorbing spring (42) which can deform along with the expansion and contraction of the damping piston (41) is sleeved outside the damping piston (41).

4. A fuse tube mounting module according to claim 1, characterized in that the pushing assembly (5) comprises a base plate (51), an adjusting part (52), a connecting rod (53) and a push rod (54); the tail end of the adjusting part (52) is hinged with one end part of a push rod (54); one end of the connecting rod (53) is hinged with the middle part of the adjusting part (52), and the other end of the connecting rod is hinged with the bottom plate (51); an adjustable triangular structure is formed among the adjusting part (52) of the bottom plate (51), the adjusting part (52) and the connecting rod (53).

5. A fuse tube mounting module according to claim 4, characterized in that the bottom plate (51) is also provided with a limit tube (55) at the top, the push rod (54) being slidably mounted in the limit tube (55).

6. A fuse mounting module according to claim 1, characterized in that the locking assembly (22) comprises a patch (221), a plurality of support springs (222) and a plurality of guide rods (223); the supporting springs (222) and the guide rods (223) are uniformly distributed on one side of the patch (221); wherein, one end of the guide rod (223) extends into a guide groove (23) arranged in the pipe cap (2).

7. A high-voltage fuse comprising a tube receiving body (6), characterized by further comprising a fuse tube mounting module according to any one of claims 1-6; two ends of the tube containing body (6) are respectively arranged in the two tube caps (2); the outside of the pipe containing body (6) is provided with a detachable heat dissipation sheath (7).

8. A high-voltage fuse as claimed in claim 7, characterised in that said heat-dissipating sheath (7) is in the form of two splittable semicircular sleeves (71); the outside of the casing (71) is provided with a plurality of radiating fins (72) which are arranged at intervals.

9. A high-voltage fuse as claimed in claim 8, characterized in that the inside of the casing (71) is provided with a thermally conductive pad (73).