CN210120106U

CN210120106U - Novel drop-out fuse

Info

Publication number: CN210120106U
Application number: CN201921016683.4U
Authority: CN
Inventors: 罗日腾; 庄苑忠; 韩雄辉; 龙兴起; 郑旭峰
Original assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-02-28
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a novel drop out fuse, include the last drop out fuse body and the drop out fuse body of connecting from top to bottom through the connecting piece, go up the fuse tube of drop out fuse body with all be connected with the dicyclo fuse tube on the fuse tube of drop out fuse body. The utility model provides a pair of novel drop out fuse can avoid the condition that operation and maintenance personnel maintained not in place and cause circuit tripping operation or distribution transformer to burn and the condition that drop out fuse can not draw the operation of closing, has improved drop out fuse's correct action rate, and still be convenient for use insulating rod install and remove the fuse tube with fixed, has high-efficient convenient, labour saving and time saving, safe and reliable's characteristics.

Description

Novel drop-out fuse

Technical Field

The embodiment of the utility model provides a relate to fuse technical field, especially relate to a novel drop out fuse.

Background

The drop-out fuse is arranged on the distribution transformer and used as the main protection of the distribution transformer, the power failure range can be reduced, and the drop-out fuse has an isolation effect because of an obvious disconnection point.

However, drop-out fuses in real 10kV line systems and on distribution transformers have two drawbacks:

first is because maintainer quality and ability are not enough, lead to not getting to maintain throughout the year and overhaul, make its draw that can not be nimble close the operation, perhaps use the rated current of fuse-element and load current mismatch, often appear lacking the fuse-element even or collude the condition of hanging and replacing the fuse-element with copper wire, aluminium silk, iron wire for the trip rate of circuit and distribution transformer's fault rate remain high.

And secondly, after the short-circuit current is fused through the fuse wire, the fuse tube rapidly falls under the action of the self gravity of the fuse tube and the spring pieces of the upper and lower static contacts, so that the circuit is disconnected, and the fault of a line or equipment at a fault section is removed. After fault treatment, the fuse tube needs to be taken down by the insulating rod to replace a fuse and installed back, the installation position of the common drop-out fuse is higher, the operation of the insulating rod with the length of several meters is needed, the lower end of the fuse tube is often supported by the insulating rod when the fuse tube is taken down or installed, and the fuse tube is often easy to drop due to the fact that no supporting point exists.

Therefore, it is very important to research and manufacture a drop-out fuse meeting the power operation requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel drop out fuse to solve the not enough of prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a novel drop out fuse, includes drop out fuse body and drop out fuse body on connecting piece connection from top to bottom, go up the fuse tube of drop out fuse body with all be connected with the dicyclo fuse tube on the fuse tube of drop out fuse body.

Furthermore, the novel drop-out fuse also comprises a grounding hanging ring;

the grounding hanging ring is fixedly connected to the upper part of the wire inlet end of the upper drop-out fuse body in a welding or bonding mode.

Furthermore, the novel drop-out fuse also comprises a grounding hanging ring;

the grounding hanging ring is fixedly connected to the lower part of the wire outlet end of the drop-down fuse body in a welding or bonding mode.

Furthermore, the novel drop-out fuse also comprises a grounding hanging ring;

the number of the grounding hanging rings is two, and the two grounding hanging rings are fixedly connected to the upper portion of the wire inlet end of the upper drop-out fuse body and the lower portion of the wire outlet end of the lower drop-out fuse body respectively in a welding or bonding mode.

Furthermore, in the novel drop-out fuse, the connecting piece is connected with the lower fixed base of the upper drop-out fuse body and the upper fixed base of the lower drop-out fuse body respectively in a welding or bonding mode.

Furthermore, in the novel drop-out fuse, the double-ring fusion tube comprises a double-ring fusion tube main body and a clamping part which is integrally formed with the double-ring fusion tube main body;

the double-ring fuse tube main body is fixedly connected to the fuse tube of the upper drop-out fuse body and the fuse tube of the lower drop-out fuse body through the clamping part.

The embodiment of the utility model provides a pair of novel drop out fuse, can avoid the maintenance personnel to maintain the condition that does not put in place and cause circuit tripping operation or distribution transformer to burn and the condition that drop out fuse can not draw the operation, improved drop out fuse's correct action rate, and still be convenient for use the insulating rod to install and remove the fuse tube and fix, have high-efficient convenient, labour saving and time saving, safe and reliable's characteristics.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a novel drop-out fuse according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a novel drop-out fuse according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a novel drop-out fuse according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a novel drop-out fuse according to an embodiment of the present invention.

Reference numerals:

the fuse comprises an upper drop-out fuse body 10, a lower drop-out fuse body 20, a connecting piece 30, a double-ring fusion tube 40 and a grounding hanging ring 50.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 4, an embodiment of the present invention provides a novel drop-out fuse, including an upper drop-out fuse body 10 and a lower drop-out fuse body 20 connected vertically through a connecting member 30, and a dual-ring fuse tube 40 is connected to both the fuse tube of the upper drop-out fuse body 10 and the fuse tube of the lower drop-out fuse body 20.

It should be noted that the drop-out fuse body 10 and the drop-out fuse body 20 in the embodiment of the present invention include not only the fuse tube but also other components, but since these components are already implemented in the prior art and are not the main point of the design of the present solution, they are not further described herein.

Preferably, the device further comprises a grounding hanging ring 50;

in the first embodiment, the grounding suspension ring 50 is fixedly connected to the upper portion of the incoming line end of the upper drop-out fuse body 10 by welding or bonding.

In the second embodiment, the grounding suspension ring 50 is fixedly connected to the lower portion of the outlet terminal of the drop-out fuse body 20 by welding or adhesion.

In the third embodiment, there are two grounding loops 50, and the two grounding loops 50 are respectively and fixedly connected to the upper portion of the wire inlet end of the upper drop-out fuse body 10 and the lower portion of the wire outlet end of the lower drop-out fuse body 20 by welding or adhering.

It should be noted that, the grounding suspension loop 50 is arranged so that the grounding wire can be directly suspended on the grounding suspension loop 50 when a power failure maintenance task is performed, and the grounding wire is not easy to fall off.

Preferably, the connecting member is connected to the lower fixing base of the upper drop-out fuse body 10 and the upper fixing base of the lower drop-out fuse body 20 by welding or bonding.

Preferably, the double-ring fusion tube 40 comprises a double-ring fusion tube main body and a clamping part integrally formed with the double-ring fusion tube main body;

the double-ring fuse tube main body is fixedly connected to the fuse tube of the upper drop-out fuse body 10 and the fuse tube of the lower drop-out fuse body 20 through the clamping part.

The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.

When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.

Claims

1. The utility model provides a novel drop out fuse which characterized in that, includes drop out fuse body and drop out fuse body on connecting through the connecting piece is connected from top to bottom, go up the fuse tube of drop out fuse body with all be connected with the dicyclo fusion tube on the fuse tube of drop out fuse body.

2. The drop out fuse of claim 1, further comprising a ground suspension loop;

3. The drop out fuse of claim 1, further comprising a ground suspension loop;

4. The drop out fuse of claim 1, further comprising a ground suspension loop;

5. The drop-out fuse as claimed in claim 1, wherein the connecting member is connected to the lower fixing base of the upper drop-out fuse body and the upper fixing base of the lower drop-out fuse body by welding or bonding, respectively.

6. The drop-out fuse of claim 1, wherein the double ring fuse tube comprises a double ring fuse tube body and a clamping portion integrally formed with the double ring fuse tube body;