WO2018196499A1

WO2018196499A1 - Umbrella sleeve and electrical apparatus using same

Info

Publication number: WO2018196499A1
Application number: PCT/CN2018/079020
Authority: WO
Inventors: 马斌; 姜建泉; 陆剑飞; 唐利全
Original assignee: 江苏神马电力股份有限公司
Priority date: 2017-04-25
Filing date: 2018-03-14
Publication date: 2018-11-01
Also published as: CN106898441A

Abstract

Disclosed are an umbrella sleeve and an electrical apparatus using same. The umbrella sleeve (100) is arranged on the electrical apparatus, and the electrical apparatus comprises at least two parallel insulators (300); and at least two mounting holes (103) capable of enabling the at least two insulators to pass through and openings (104) corresponding to the mounting holes are arranged on the umbrella sleeve, and the openings are in communication with the mounting holes and the edge of the umbrella sleeve. The electrical apparatus can also comprise a housing (200), and the at least two insulators are connected to the housing by housing connection parts (400); and the umbrella sleeve covers at least the housing connection parts. The umbrella sleeve has a significant effect of increasing creepage distance, and can effectively prevent rain, snow and dirt, and has a better anti-pollution flashover effect; the umbrella sleeve can also effectively prevent rain, snow and dirt from entering the junction regions between the connection parts and the insulators and the housing, and thereby can improve the safety of the electrical apparatus; and the diameter of the umbrella sleeve is larger, and can break a conductive passage forming a rain curtain, at least to some extent avoiding or even eliminating a rain flash accident.

Description

Umbrella cover and electrical equipment using the same

Technical field

The present application relates to the field of electric power transmission equipment, and in particular to an umbrella cover and an electrical device using the same.

Background technique

The description of this section merely provides background information related to the present disclosure and does not constitute prior art.

Some open electrical equipment operating in the atmosphere, such as dry current transformers, circuit breakers, etc., are typically provided with at least two juxtaposed insulators. With the increase of the pollution level of the atmospheric environment, the insulation of electrical equipment by the above technology is not only affected by the operation of high voltage, but also the influence of the operating environment of the electrical equipment. Specifically, when environmental contaminants are deposited on the surface of the insulator, the environmental contaminants are soluble in water under humid conditions or rain and snow, and a conductive film is formed on the surface of the insulator, so that the insulation level of the insulator is greatly reduced, and the electric field acts. There is a strong discharge phenomenon, commonly known as pollution flash.

Therefore, how to solve the pollution flashing of the insulator of the above electrical equipment is a problem that has plagued the power industry for many years, and increasing the creepage distance is one of the main ideas for solving this problem. Under the guidance of this idea, it is common practice in the industry to install a climbing skirt for electrical equipment, that is, to install a climbing skirt with a large cross-sectional area on the insulator.

However, the prior art parachute skirts are mostly designed for a single insulator. In this way, only one additional climbing skirt can be installed on one insulator. If the electrical equipment listed above is equipped with at least two insulators, a plurality of climbing umbrella skirts shall be installed at this time. The additional climbing skirts installed on adjacent insulators are spaced apart from each other, which is equivalent to a plurality of climbing umbrella skirts that are free and not integrated into the city. Thus, the configuration of such a climbing umbrella skirt has a limited effect on increasing the creepage distance, and the anti-pollution effect is not significant.

Further, for an electric device such as a dry current transformer which has an insulator disposed on the casing through a connecting flange, such a climbing umbrella skirt is provided, and a climbing skirt installed on the adjacent insulator remains between The lower spacing gap causes the surface of the housing between adjacent connecting flanges to be exposed. In this way, rain, snow, dirt, and the like can still enter the joint between the connecting flange and the insulator and the casing through the gap, thereby causing a large safety hazard to the electrical equipment.

In addition, for open-type electrical equipment such as dry-type current transformers, circuit breakers, etc., which are normally operated in the atmosphere, at least two juxtaposed insulators that are themselves equipped are generally equal-diameter structures, that is, each shed The radius is equal to the distance between the sheds. Insulation of this structure is easy to form a rain curtain along the edge of the shed when it encounters weather with strong rainfall, thereby forming a conductive path, causing an accident, commonly known as rain flash.

It should be noted that the above description of the technical background is only for the purpose of facilitating a clear and complete description of the technical solutions of the present application, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of this application.

Summary of the invention

In view of the above-mentioned deficiencies of the prior art, the present application provides an umbrella cover and an electrical device using the same, which can reduce at least a flashover and a rain flash accident. In some applicable scenarios, the umbrella cover is further It can block the rain, snow and dirt from entering the joint between the joint and the insulator and the casing, so that the safety of the electrical equipment can be improved.

To achieve the above object, the present application provides the following technical solutions.

An umbrella cover for being disposed on an electrical device, the electrical device comprising at least two insulators; the umbrella cover is provided with at least two mounting holes through which at least two of the insulators are respectively disposed And an opening corresponding to the mounting hole, the opening communicating with the mounting hole and an outer edge of the umbrella cover.

By providing at least two corresponding mounting holes and openings in the umbrella sleeve, the insulator can enter the mounting hole through the opening, and the umbrella sleeve is mounted on at least two parallel insulators, so that the umbrella sleeve is connected, thereby canceling When the conventional climbing umbrella skirt is installed on the insulator, the gap formed by the adjacent climbing umbrella skirts is spaced apart from each other, the creepage distance is increased, and the rain, snow and dirt are effectively blocked, thereby being better. Ground anti-smudge effect.

The umbrella sleeve of the present application has a larger diameter than the shed of the insulator, so that the conductive passage forming the rain curtain can be broken. In the case of heavy rain, no rain curtain will be formed on the edge of the umbrella skirt of the insulator, so as to avoid or even eliminate the rain flash accident at least to some extent.

Preferably, the electrical device further comprises a housing, at least two of the insulators being connected to the housing through a housing connection; the umbrella cover at least covering the housing connection.

The umbrella cover can cover at least the connection of the casing for connecting at least two insulators to the casing, and can effectively block the engagement of the rain and snow into the connection portion and the insulator and the casing in the case of rain and snow weather. Where, in the absence of rain and snow, the umbrella cover can function to block dirt and prevent dirt from entering the joint between the housing and the insulator and the housing, thereby improving the safety of the electrical equipment. Sex.

Preferably, the outer edge of the umbrella sleeve extends out of the housing such that a projection of the umbrella sleeve in a direction toward the housing can cover the housing.

The edge of the umbrella sleeve can extend out of the casing so that the projection of the umbrella sleeve in the direction toward the casing can cover the casing, so that the umbrella sleeve can completely cover the casing, thereby effectively preventing the umbrella casing from covering the casing. It may cause rain and snow to drip on the surface of the opposite side of the casing and the umbrella cover, causing water ingress at the joint of the casing and the insulator and the casing.

Preferably, the umbrella sleeve has a reinforcing portion having a thickness greater than a thickness of an area other than the reinforcing portion; the reinforcing portion enclosing at least two of the mounting holes and the two adjacent mounting holes The area between.

The reinforcing portion having a larger thickness is relatively strong and can have a better supporting effect. Where the thickness of the umbrella sleeve outside the reinforcement portion is small, the weight of the region is relatively small, reducing the probability that the region will collapse under the action of its own gravity.

Preferably, the thickness of the area other than the reinforcing portion is gradually reduced from the reinforcing portion to the edge of the umbrella cover.

The thickness of the area outside the reinforcement can be gradually reduced from the reinforcement to the edge of the umbrella cover. In this way, in the area outside the reinforcing portion, the portion close to the reinforcing portion can also support the portion away from the reinforcing portion, thereby forming a stepwise supporting effect on the area outside the middle portion of the umbrella sleeve, thereby minimizing the possibility of collapse of the edge of the umbrella sleeve. .

Preferably, the umbrella cover is formed by connecting at least two umbrella bodies.

The umbrella sleeve is obtained by splicing at least two umbrella bodies. During installation, at least two umbrella bodies can be respectively disposed on the corresponding insulators in a split manner, thereby reducing the difficulty of installing the umbrella sleeve.

Preferably, the two adjacent umbrella bodies are respectively provided with a first connecting portion and a second connecting portion that are coupled to each other; when the first connecting portion is connected with the second connecting portion, the first connection The lower surface of the portion is flush with the lower surface of the umbrella cover, and the upper surface of the second connecting portion is flush with the upper surface of the umbrella cover.

When two adjacent umbrella bodies are connected by a connecting portion, or when the connecting portion and the connecting member are connected, the upper and lower surfaces of the connecting portion may be flush with the upper and lower surfaces of the umbrella cover, and the upper surface of the connecting member may be coupled with the umbrella cover The upper surface is flush so that the final spliced umbrella cover has a smooth surface.

Preferably, at least one first protrusion is disposed on one of the two adjacent umbrella bodies, and the other umbrella body is provided with at least one first through hole corresponding to the first protrusion. The first protrusion can be buckled into the first through hole.

Preferably, two adjacent umbrella bodies are detachably connected by a connecting member.

Preferably, the two adjacent umbrella bodies are respectively provided with a third connecting portion and a fourth connecting portion that are coupled with the connecting member; when the connecting member is connected with the third connecting portion and the fourth connecting portion When connected, the lower surfaces of the third connecting portion and the fourth connecting portion are flush with the lower surface of the umbrella cover, and the upper surface of the connecting member is flush with the upper surface of the umbrella cover.

In particular, the upper connecting portion or the connecting member can form a covering effect on the lower connecting portion, so that the connecting seam can be reduced or even eliminated, and the water dripping on the upper surface of the umbrella cover can be prevented from seeping downward through the connecting seam.

Preferably, two adjacent umbrella bodies are respectively mated with the connecting member through the second protrusion and the second through hole, and the umbrella body and the connecting member are disposed on one of the connecting members, and the second protrusion is disposed. One of the corresponding second through holes is provided on one side.

Preferably, the two outermost umbrella bodies are symmetrical and can be replaced with each other.

In addition, the umbrella sleeve is formed by splicing at least two umbrella bodies, and the umbrella sleeve can also be formed separately to reduce the manufacturing difficulty. When the umbrella body is molded by molding, the two outermost umbrella bodies are symmetrical and can be replaced with each other, so that the number of mold opening can be reduced, and the manufacturing cost can be reduced.

Preferably, the insulator includes a main body and an esthetic skirt extending outward from the main body; the umbrella sleeve is provided with a accommodating cavity communicating with the mounting hole, the mounting hole being permeable to the main body, The accommodating cavity can receive the shed.

Preferably, the insulator includes a main body and an shed extending outward from the main body; the umbrella sleeve is provided with a fastening sleeve at a position corresponding to the mounting hole, and the fastening sleeve faces away from the surface of the umbrella cover Extending outwardly, the fastening sleeve is disposed on the body.

By providing a fastening sleeve, the contact area between the umbrella cover and the insulator can be increased, thereby improving the connection strength between the umbrella cover and the insulator.

Preferably, a straight line on the umbrella sleeve that communicates with the center of at least two of the mounting holes is a center line, and the openings are all distributed on the same side of the center line.

Preferably, the umbrella cover is in the shape of a golf ball, and includes a semicircle on both sides and a rectangle between the semicircles; a center of the mounting hole on both sides coincides with a center of the semicircle on both sides .

An electrical device comprising: at least two insulators; the umbrella cover of any one of the preceding embodiments, wherein the umbrella cover is disposed on at least two of the insulators.

Preferably, the housing further includes at least two of the insulators connected to the housing by a housing connection; the umbrella cover at least covers the housing connection.

DRAWINGS

The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. In addition, the shapes, proportions, and the like of the components in the drawings are merely illustrative and are used to help the understanding of the present application, and do not specifically limit the shapes and proportions of the components of the present application. Those skilled in the art, in the teachings of the present application, can implement the present application by selecting various possible shapes and ratios depending on the particular circumstances. In the drawing:

1A is a schematic perspective view showing the assembly of an umbrella cover and an electrical device according to a first preferred embodiment of the present application;

1B is a schematic cross-sectional view showing the assembly of an umbrella cover and an electrical device according to a first preferred embodiment of the present application;

1C is a schematic cross-sectional structural view of an umbrella cover according to a first preferred embodiment of the present application;

1D is a schematic front perspective view of an umbrella cover according to a first preferred embodiment of the present application;

1E is a front perspective exploded view of an umbrella cover according to a first preferred embodiment of the present application;

1F is a schematic perspective view showing the back side of the umbrella cover according to the first preferred embodiment of the present application;

1G is a perspective exploded perspective view of a back cover of an umbrella cover according to a first preferred embodiment of the present application;

2A is a schematic perspective view showing the assembly of an umbrella cover and an electrical device according to a second preferred embodiment of the present application;

2B is a schematic cross-sectional view showing the assembly of an umbrella cover and an electrical device according to a second preferred embodiment of the present application;

2C is a front cross-sectional structural view of an umbrella cover according to a second preferred embodiment of the present application;

2D is a schematic front perspective view of an umbrella cover according to a second preferred embodiment of the present application;

2E is a front perspective exploded view of an umbrella cover according to a second preferred embodiment of the present application;

2F is a schematic perspective view showing the back side of the umbrella cover according to the second preferred embodiment of the present application;

2G is a schematic perspective view showing the back side of the umbrella cover according to the second preferred embodiment of the present application;

3A is a perspective structural view showing the assembly of an umbrella cover and an electrical device according to a third preferred embodiment of the present application;

3B is a schematic cross-sectional view showing the assembly of an umbrella cover and an electric device according to a third preferred embodiment of the present application;

3C is a front cross-sectional structural view of an umbrella cover according to a third preferred embodiment of the present application;

3D is a schematic front perspective view of an umbrella cover according to a third preferred embodiment of the present application;

3E is a front perspective exploded view of the umbrella cover according to the third preferred embodiment of the present application;

3F is a schematic perspective view showing the back side of the umbrella cover according to the third preferred embodiment of the present application;

3G is a perspective exploded perspective view of the back of the umbrella cover according to the third preferred embodiment of the present application;

4A is a perspective structural view showing the assembly of an umbrella cover and an electrical device according to a fourth preferred embodiment of the present application;

4B is a schematic cross-sectional view showing the assembly of an umbrella cover and an electric device according to a fourth preferred embodiment of the present application;

4C is a schematic cross-sectional structural view of an umbrella cover according to a fourth preferred embodiment of the present application;

4D is a schematic front perspective view of an umbrella cover according to a fourth preferred embodiment of the present application;

4E is a front perspective exploded structural view of an umbrella cover according to a fourth preferred embodiment of the present application;

4F is a schematic perspective view showing the back side of the umbrella cover according to the fourth preferred embodiment of the present application;

4G is a schematic perspective view showing the back side of the umbrella cover according to the fourth preferred embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that when a component is referred to as being "set to" another component, it can be directly on the other component or the component can be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or. The terms "vertical", "horizontal", "left", "right", and the like, as used herein, are for the purpose of illustration and are not intended to be the only embodiment.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention applies, unless otherwise defined. The terminology used herein is for the purpose of describing particular embodiments, and is not intended to be limiting. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1A to FIG. 4G, the present application provides an umbrella cover 100 that can be applied to an electrical device configured with at least two insulators 300. At least two insulators 300 are arranged side by side, and the umbrella cover 100 is disposed. There are at least two mounting holes 103 through which the at least two insulators 300 are respectively disposed, and an opening 104 corresponding to the mounting hole 103. The opening 104 communicates with the mounting hole 103 and the outer edge of the umbrella cover 100.

In the embodiment of the present application, by providing at least two corresponding mounting holes 103 and openings 104 on the umbrella cover 100, the insulator 300 can enter the mounting hole 103 through the opening 104, and the umbrella cover 100 is mounted on at least two juxtaposed insulators 300. Therefore, the umbrella cover 100 has a connected structure, thereby eliminating the gap between the adjacent climbing skirts and the gaps formed by the adjacent climbing skirts when the conventional climbing umbrella skirts are installed on the insulator 300, and the creepage distance is increased significantly, and It can effectively block rain, snow and dirt, and thus has better anti-pollution effect.

As shown in FIGS. 4A and 4B, the umbrella cover 100 of the embodiment of the present application can be applied to an electric device that does not have a casing such as a circuit breaker. In this application scenario, the umbrella cover 100 can be used as an auxiliary umbrella to increase the creepage distance and prevent pollution flash.

As shown in FIG. 1A, FIG. 1B, FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the umbrella cover 100 of the embodiment of the present invention can also be applied to an electrical device such as a dry current transformer and the like. In this application scenario, at least two insulators 300 are connected to the housing 200 by a housing connection 400 that covers at least the housing connection 400. In the case of rain and snow weather, the umbrella cover 100 can effectively block the rain and snow from entering the joint of the housing connecting portion 400 and the insulator 300 and the housing 200, and in the case of no rain or snow weather, the umbrella The sleeve 100 can function to block dirt, prevent dirt from entering the joint of the housing connecting portion 400 and the insulator 300 and the housing 200, so that the safety of the electrical device can be improved.

In another suitable scenario, the umbrella cover 100 of the embodiment of the present application can also be used to prevent a rain flash accident. Specifically, the umbrella cover 100 of the embodiment of the present application has a larger diameter than the shed 302 of the insulator 300, so that the conductive passage forming the rain curtain can be broken. In this way, when a heavy rain weather is encountered, a rain curtain will not be formed at the edge of the shed of the insulator 300, thereby avoiding at least a certain degree of rain flash accident.

Further, in order to avoid forming a rain curtain on the edge of the shed of the insulator 300 located above the umbrella cover 100, in practice, a plurality of the umbrella covers 100 of the embodiment of the present application may be mounted on the insulator 300, and the plurality of umbrella covers 100 along the insulator 300 The axial arrangement; or at least the shed at the upper side of the insulator 300, such as the esplane located at the top, installs the umbrella cover 100 of the embodiment of the present application.

The housing connection portion 400 is for connecting the insulator 300 to the housing 200. Specifically, the housing connection portion 400 may include a number of connection flanges equal to the number of insulators 300. The umbrella cover 100 can cover at least the housing connecting portion 400, and the cross-sectional area of the umbrella cover 100 can be larger than the cross-sectional area of the housing connecting portion 400, so that the housing connecting portion 400 can be in the projection of the umbrella cover 100 on the housing 200. Within the scope, it is possible to form a cover for the housing connecting portion 400. In the event of rain or snow, the umbrella cover 100 can form a cover for the housing connecting portion 400 to isolate rain and snow, and to avoid water ingress at the joint between the housing connecting portion 400 and the insulator 300 and the housing 200.

In some cases, when the cross-sectional area of the umbrella cover 100 is smaller than the area of the opposite side of the casing 200 and the umbrella cover 100, rain and snow may drip on the surface of the casing 200 that is not covered by the umbrella cover 100, and then flow into or Splashing into the housing connecting portion 400 may cause water in the joint of the housing connecting portion 400 and the insulator 300 and the housing 200.

To this end, in one embodiment, the edge of the umbrella cover 100 can extend out of the housing 200 such that projection of the umbrella cover 100 in a direction toward the housing 200 can cover the housing 200. The cross-sectional area of the umbrella cover 100 may be larger than the area of the opposite surface of the casing 200 and the umbrella cover 100, so that the umbrella cover 100 can completely cover the casing 200, thereby effectively avoiding the possibility that the umbrella cover 100 fails to completely cover the casing 200. The surface of the casing 200 opposite to the umbrella cover 100 is dripped with rain and snow, causing the water in the joint of the casing connecting portion 400 and the insulator 300 and the casing 200 to occur.

In the present embodiment, the umbrella cover 100 may be in the shape of a golf ball, and may specifically include a semicircular shape on both sides and a rectangle between the semicircles; the center of the mounting hole 103 on both sides may be semicircular with the sides respectively. The center of the circle coincides. The umbrella cover 100 of this shape can be preferably adapted to the shape of the housing 200, and its edges can be smoothly transitioned, thereby avoiding stress concentration at the edges and reducing the probability of cracking of the umbrella cover 100 after prolonged use.

In order to allow the water on the umbrella cover 100 to drip in time, the umbrella cover 100 can have a structurally optimized design of the diversion water. Specifically, the middle portion of the dome-shaped umbrella cover 100 is slightly raised upward, and the upper surface is smoothly curved and inclined downward, and the overall upper middle edge is low. In this way, when the water drops on the umbrella cover 100, the water can flow along the inclined upper surface to the edge of the umbrella cover 100 under the action of its own gravity and finally drip, thereby functioning as a better guide water. Avoid surface water on the umbrella cover 100.

The umbrella cover 100 can be molded or injection molded. 2A to 2G, and 4A to 4G, the umbrella cover 100 may be of unitary construction; or, as shown in FIGS. 1A to 1G, and FIGS. 3A to 3G, the umbrella cover 100 may be a separate structure. It is obtained by splicing at least two umbrella bodies 101, and one umbrella body 101 can be correspondingly disposed on one insulator 300. In this way, at the time of installation, at least two umbrella bodies 101 can be respectively disposed on the corresponding insulators 300 in a split manner, so that the installation difficulty of the umbrella cover 100 can be reduced.

As shown in FIG. 1A to FIG. 1G, when the umbrella cover 100 is in a split configuration, the adjacent two umbrella bodies may be respectively provided with a first connecting portion 109 and a second connecting portion 110 which are coupled to each other, when the first connecting portion 109 is When the second connecting portion 110 is connected, the lower surface of the first connecting portion 109 is flush with the lower surface of the umbrella cover 100, and the upper surface of the second connecting portion 110 is flush with the upper surface of the umbrella cover 100.

The first connecting portion 109 and the second connecting portion 110 may be substantially in the shape of an elongated strip. Specifically, the first connecting portion 109 and the second connecting portion 110 may be stepped by the thickness reduction of the umbrella body 101 at the joint. structure. Thus, when the first connecting portion 109 and the second connecting portion 110, the lower surface of the first connecting portion 109 can be flush with the lower surface of the umbrella cover 100, and the upper surface of the second connecting portion 110 can be attached to the upper portion of the umbrella cover 100. The surfaces are flush so that the final spliced umbrella cover 100 has a smooth surface.

In particular, when the first connecting portion 109 is connected to the second connecting portion 110, the second connecting portion 110 located above can form a covering effect on the lower first connecting portion 109, so that the connecting seam can be reduced or even eliminated, and the drop can be avoided. The water falling on the upper surface of the umbrella cover 100 seeps down through the joint.

Two adjacent umbrella bodies 101 can be detachably connected by fastening. Specifically, as shown in FIG. 1G, an umbrella body 101 (such as the umbrella body 101 on the left side shown in FIG. 1G) can be provided with at least one first. The protrusion 101a, the other umbrella body 101 (the umbrella body 101 on the right side shown in FIG. 1G) may be provided with at least one first through hole 101b corresponding to the first protrusion 101a, and the first protrusion 101a can correspond to The buckle is inserted into the first through hole 101b. After the adjacent two umbrella bodies 101 are respectively mounted and positioned, the connection of the two umbrella bodies 101 can be achieved by snapping the first protrusions 101a into the first through holes 101b. The first protrusion 101a may be disposed on the second connecting portion 110, and the first through hole 101b may be disposed on the first connecting portion 109.

Alternatively, as shown in FIGS. 3E to 3G, the adjacent two umbrella bodies 101 may be detachably connected by the connecting member 102. The two adjacent antennas 101 are respectively provided with a third connecting portion 111 and a fourth connecting portion 112 that are coupled to the connecting member 102. When the connecting member 102 is connected to the third connecting portion 111 and the fourth connecting portion 112, The lower surfaces of the three connecting portions 111 and the fourth connecting portion 112 are flush with the lower surface of the umbrella cover 100, and the upper surface of the connecting member 102 is flush with the upper surface of the umbrella cover 100.

For the third connection portion 111 and the fourth connection portion 112, the first connection portion 109 and the second connection portion 110 may be referred to above, and details are not described herein again.

Similarly, when the adjacent two umbrella bodies 101 are connected to the connecting member 102 through the third connecting portion 111 and the fourth connecting portion 112, the lower surfaces of the third connecting portion 111 and the fourth connecting portion 112 are under the umbrella cover 100. The surface is flush, and the upper surface of the connector 102 is flush with the upper surface of the umbrella cover 100, so that the finally spliced umbrella cover 100 has a smooth surface.

Moreover, the upper connecting member 102 can cover the third connecting portion 111 and the fourth connecting portion 112 located below, so that the connecting seam can be reduced or even eliminated, and the water dripping on the upper surface of the umbrella cover 100 can be prevented. The connecting seam seeps down.

The connecting member 102 can be substantially in the form of a strip or a strip, and the two adjacent umbrella bodies 101 can be detachably connected by the second protrusion 101c and the second through hole 102a. A second protrusion 101c is disposed on one of the body 101 and the connector 102, and a corresponding second through hole 102a is disposed on the other side. The second protrusion 101c can be coupled into the second through hole 102a.

Specifically, at least one second protrusion 101c is disposed on the left and right umbrella bodies 101 as shown in FIG. 3E. More specifically, the second protrusions 101c may be respectively disposed on the third connection portion 111 and the fourth connection portion 112. Upper, correspondingly, the connecting member 102 is provided with at least one second through hole 102a corresponding to the second protrusion 101c. Alternatively, the second protrusions 101c are disposed on the connecting member 102 in two rows, and the two umbrella bodies 101 are respectively provided with at least one second through hole 102a. After the two adjacent umbrella bodies 101 are respectively installed and positioned, the second protrusions 101c are buckled into the second through holes 102a, so that the connection of the two umbrella bodies 101 can be realized by the connecting member 102.

In order to adapt to the fact that the distance between the two insulators 300 may be different in practice, the length of the connecting member 102 can be adjusted, so that in different cases, when the distance between the two insulators 300 changes, only the length of the connecting member 102 needs to be expanded and contracted. It is still possible to connect the two umbrella bodies 101, which greatly expands the scope of application of the same umbrella cover 100 in different situations. A specific implementation manner in which the length of the connecting member 102 is adjustable may be that the connecting member 102 includes a telescopic joint, and two ends of the telescopic joint are respectively detachably connected to the adjacent two umbrella bodies 101. The expansion joint can adopt any suitable existing configuration, which is not limited in this application.

In addition, the umbrella cover 100 is formed by splicing at least two umbrella bodies 101, and the umbrella cover 100 can also be formed separately, which reduces the manufacturing difficulty. When the umbrella body 101 is molded by molding, the two umbrella bodies 101 located at the outermost side are symmetrical and can be replaced with each other, so that the number of mold opening can be reduced, and the manufacturing cost can be reduced. For example, when the umbrella cover 100 is formed by splicing three umbrella bodies 101, the two outermost umbrella bodies 101 are mirror-symmetrical, and in practice, only three sets of molds are required to produce the three umbrella bodies 101. Moreover, the single umbrella body 101 has a smaller area than the integrally formed umbrella cover 100, thereby greatly reducing manufacturing difficulty and cost.

As shown in FIG. 1B, FIG. 2B, FIG. 3B and FIG. 4B, in the present embodiment, the insulator 300 may include a main body 301 and a shed 302 extending outward from the main body 301. The main body 301 may have a longitudinally extending rod shape. Alternatively, the number of the sheds 302 may be plural, and the plurality of sheds 302 may be spaced apart from each other outside the main body 301 in the axial direction.

The umbrella cover 100 can be sleeved over the insulator 300 through the opening 104. Specifically, the mounting hole 103 is matched with the main body 301 of the insulator 300. When the insulator 300 is disposed in the mounting hole 103, a seal can be formed between the mounting hole 103 and the main body 301 to prevent water from leaking through the joint between the two. . The opening 104 corresponds to the mounting hole 103, and the number of the openings 104 may be equal to the number of the mounting holes 103, and one opening 104 corresponds to one mounting hole 103. The opening 104 communicates with the mounting hole 103 and the outer edge of the umbrella cover 100 such that the insulator 300 can enter the mounting hole 103 through the opening 104 to realize the mounting of the umbrella cover 100 and the insulator 300.

Further, the umbrella cover 100 may further include another connecting member 105. After the umbrella cover 100 is mounted to the insulator 300, the connecting member 105 is attached to the wall on both sides of the opening 104, so that the opening 104 can be closed. The connecting member 105 is substantially in the shape of a "V" which is adapted to the opening 104. The connecting member 105 can be connected to the wall on both sides of the opening 104 by means of a fastening. For details, please refer to the above description, and details are not described herein.

As shown in FIG. 1D to FIG. 1G and FIG. 3D to FIG. 3G, when the umbrella cover 100 is in a split configuration, an opening 104 and a mounting hole 103 may be correspondingly disposed on each of the umbrella bodies 101, and each of the umbrella bodies 101 may be Mounted to the corresponding insulator 300 through respective openings 104. Therefore, in this embodiment, the opening 104 can be disposed at any suitable position. For example, the opening 104 can be disposed at the end, the side, and the like of the umbrella cover 100, which is not limited herein.

As shown in FIG. 2D to FIG. 2G and FIG. 4D to FIG. 4G, when the umbrella cover 100 is of an integral configuration, the umbrella cover 100 can only be integrally mounted to at least two insulators 300, in which case the opening 104 is located. The same side of the umbrella cover 100. Specifically, a straight line connecting the centers of the at least two mounting holes 103 on the umbrella cover 100 may be a center line, and the openings 104 are all distributed on the same side of the center line, as shown in FIG. 2D to FIG. 2G, and FIG. 4D to FIG. 4G. At least two openings 104 are provided on the long side of the left side of the umbrella cover 100.

The umbrella cover 100 is disposed on the at least two insulators 300. The main body 301 of the insulator 300 is disposed in the mounting hole 103, and the umbrella cover 100 is disposed on the insulator through the mounting hole 103 and the main body 301 of the insulator 300. 300 on.

Alternatively, the umbrella cover 100 may be disposed on the at least two insulators 300. The umbrella cover 100 may be provided with a receiving cavity 106 communicating with the mounting hole 103. The mounting hole 103 can be inserted through the main body 301, and the receiving cavity 106 is received. Can accommodate the umbrella skirt 302. Since the shed 302 extends substantially in the lateral direction, the umbrella cover 302 is received by providing the accommodating cavity 106, so that the umbrella cover 100 can be stably disposed on the insulator 300. In addition, an adhesive may be applied to the inner wall of the accommodating cavity 106 and/or the outer wall of the shed 302 during installation to further improve the connection strength of the canopy 100 and the insulator 300.

As shown in FIG. 1B, FIG. 2B and FIG. 3B, in practice, the umbrella cover 100 is preferably disposed at the lowermost shed 302 to minimize the distance between the umbrella cover 100 and the housing connecting portion 400, thereby reducing rain and snow. The possibility of entering the joint between the housing connection 400 and the housing 200 and the insulator 300 from the lateral direction.

Further, the sleeve 100 is disposed at a position corresponding to the mounting hole 103 with an outwardly extending fastening sleeve 107 facing away from the umbrella sleeve 100, and the fastening sleeve 107 is sleeved on the insulator 300. The fastening sleeve 107 is substantially cylindrical and has a cross-sectional shape identical to that of the main body 301 of the insulator 300. The diameter of the fastening sleeve 107 is slightly larger than the diameter of the main body 301, so that the fastening sleeve 107 can be sealed and attached to the insulator 300. On the main body 301, leakage of water is prevented from occurring. In addition, by providing the fastening sleeve 107, the contact area of the umbrella cover 100 and the insulator 300 can be increased, and the connection strength between the umbrella cover 100 and the insulator 300 can be further improved.

In the present application, the opening 104 and the mounting hole 103 may enable the umbrella cover 100 to be disposed on at least two insulators 300, and then the umbrella cover 100 is supported by at least two insulators 300. The umbrella cover 100 extends laterally beyond the edge of the housing connecting portion 400 or even the housing 200, but the area of the umbrella cover 100 away from the at least two insulators 300 is more likely to collapse due to gravity away from the supporting position, material aging or insufficient strength. Waiting for the situation, thus affecting the effects of rain and snow, anti-fouling and increasing the creepage distance.

In order to solve the above problem, the umbrella cover 100 may have a reinforcing portion 108 having a thickness greater than a thickness of a region other than the reinforcing portion 108; the reinforcing portion 108 surrounding at least two mounting holes 103 and between the adjacent two mounting holes 103 region.

As shown in FIGS. 1F, 1G, 2F, 2G, 3F, 3G, 4F, and 4G, the reinforcing portion 108 may be formed by the thickness of the portion of the sleeve 100 that is larger than the portion of the central portion, and the reinforcement formed in this manner. Portion 108 is a portion of the structure of umbrella cover 100 itself that may be generally racetrack shaped, including a semi-circular region on either side and a rectangular region between the two semi-circular regions.

The reinforcing portion 108 surrounds at least two mounting holes 103. Specifically, at least two mounting holes 103 are disposed on the reinforcing portion 108, and the centers of the two outermost mounting holes 103 are respectively centered on the semicircular regions on both sides. The coincidence, and the rectangular area between the semicircular regions on the two sides can strengthen the area between the adjacent two mounting holes 103. Thus, when the insulator 300 is bored in the mounting hole 103, the reinforcing portion 108 is close to the support point, so that the edge region of the umbrella cover 100 can be supported. Further, since the reinforcing portion 108 has a large thickness, a preferable thickness space can be provided for the arrangement of the accommodating cavity 106, so that the accommodating cavity 106 is actually disposed in the reinforcing portion 108.

The reinforcing portion 108 having a larger thickness is relatively strong and can have a better supporting effect. While the thickness of the umbrella cover 100 outside the reinforcing portion 108 is small, the weight of the region is relatively small, reducing the probability that the region will collapse under the action of its own gravity. Further, the thickness of the area other than the reinforcing portion 108 may gradually decrease from the reinforcing portion 108 to the edge of the umbrella cover 100. In this way, the portion other than the reinforcing portion 108 and the portion close to the reinforcing portion 108 can also support the portion away from the reinforcing portion 108, so that the outer portion of the reinforcing portion 108 can be formed with a stepwise supporting function to minimize the collapse of the edge of the umbrella cover 100. The possibility of the side.

Referring to FIG. 4A and FIG. 4B , the present application further provides an electrical device, which may include: at least two insulators 300; the umbrella cover 100 according to any one of the above embodiments, the umbrella cover 100 is disposed on at least two insulators 300 on.

In the electrical device of the embodiment of the present application, by providing at least two corresponding mounting holes 103 and openings 104 in the umbrella cover 100, the insulator 300 can enter the mounting hole 103 through the opening 104, and the umbrella cover 100 is installed in at least two juxtapositions. On the insulator 300, the umbrella cover 100 has a connected structure, so that when the conventional climbing umbrella skirt is installed on the insulator 300, the spacing gap formed by the adjacent climbing umbrella skirts is spaced apart from each other, and the climbing effect is remarkable. Thereby having a better anti-pollution effect.

In the present embodiment, the electrical device may be any existing configuration including at least two insulators 300, such as, but not limited to, a circuit breaker or the like. In this application scenario, the umbrella cover 100 can be used as an auxiliary umbrella to increase the creepage distance and prevent pollution flash.

Referring to FIGS. 1A, 1B, 2A, 2B, 3A, and 3B, the electrical device may further include a housing 200 and an existing configuration for the housing connection 400, which may include, but is not limited to, dry Current transformers, etc. In the present embodiment, at least two insulators 300 are connected to the housing 200 through the housing connecting portion 400, and the umbrella cover 100 covers at least the housing connecting portion 400. In the case of rain and snow, the umbrella cover 100 can effectively block rain, snow, dirt from entering the joint of the housing connecting portion 400 and the insulator 300 and the housing 200, without encountering rain or snow weather. Next, the umbrella cover 100 can function to block dirt, prevent dirt from entering the joint of the housing connecting portion 400 and the insulator 300 and the housing 200, so that the safety of the electrical device can be improved.

Further, the umbrella cover 100 in the embodiment of the present application has a larger diameter than the shed 302 of the insulator 300, so that the conductive passage forming the rain curtain can be interrupted, so that heavy rain is encountered. In the weather, a rain curtain will not be formed on the edge of the umbrella skirt of the insulator 300, so that a rain flash accident can be avoided at least to some extent.

In practice, the number of the umbrella covers 100 may be plural, and the plurality of umbrella covers 100 may be axially mounted on the insulator 300; or, the umbrella cover 100 may be mounted on the upper side of the insulator 300, such as an umbrella at the top. On the skirt.

In order to achieve the basic functions of the electrical device, the electrical device in the present application may also include other necessary components. For example, the dry current transformer may also include a primary winding, a coupler, a secondary winding, and the like. It should be noted that other necessary components included in the electrical device in the present embodiment may be any suitable existing configuration. In order to clearly and briefly explain the technical solutions provided by the present embodiment, the above-mentioned portions will not be described again, and the drawings are also simplified accordingly. However, it should be understood that the present application is not limited in its scope of protection.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for describing purposes only and distinguishing similar objects, and there is no order between them, nor can it be understood as an indication or Implied relative importance. Further, in the description of the present application, the meaning of "a plurality" is two or more unless otherwise stated.

It is to be understood that the above description is for the purpose of illustration and not limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art from this description. Therefore, the scope of the present invention should be determined by reference to the foregoing description Any aspect of the subject matter disclosed herein is omitted in the preceding claims and is not intended to be a waiver of the subject matter, nor should the applicant be considered as a part of the disclosed subject matter.

Claims

An umbrella cover for being disposed on an electrical device, the electrical device comprising at least two parallel insulators, wherein the umbrella cover is provided with at least two of the insulators respectively disposed At least two mounting holes and an opening corresponding to the mounting hole, the opening communicating with the mounting hole and an outer edge of the umbrella cover; the umbrella cover can be sleeved through the opening in at least two of the On the insulator.
The umbrella cover according to claim 1, wherein said electrical device further comprises a housing, and at least two of said insulators are coupled to said housing through a housing connection; said umbrella cover at least covering said Housing connection.
The umbrella cover according to claim 2, wherein an outer edge of said umbrella sleeve extends out of said housing such that projection of said umbrella sleeve in a direction toward said housing covers said shell body.
The umbrella cover according to claim 1 or 2, wherein the umbrella cover has a reinforcing portion, the reinforcing portion having a thickness larger than a thickness of the outer portion of the reinforcing portion; the reinforcing portion surrounding at least two of the mounting portions a hole and a region between adjacent ones of the mounting holes.
The umbrella cover according to claim 4, wherein a thickness of the outer region of the reinforcing portion is gradually reduced from the reinforcing portion to the edge of the umbrella cover.
The umbrella cover according to claim 1, wherein the umbrella cover is formed by joining at least two umbrella bodies.
The umbrella cover according to claim 6, wherein two adjacent ones of the umbrella bodies are respectively provided with a first connecting portion and a second connecting portion that are coupled to each other; when the first connecting portion and the first connecting portion When the two connecting portions are connected, the lower surface of the first connecting portion is flush with the lower surface of the umbrella cover, and the upper surface of the second connecting portion is flush with the upper surface of the umbrella cover.
The umbrella cover according to claim 6, wherein at least one of the two adjacent ones of the umbrella bodies is provided with at least one first protrusion, and the other of the umbrella bodies is provided with the first protrusion And correspondingly engaging at least one first through hole; the first protrusion can be correspondingly buckled into the first through hole.
The umbrella cover according to claim 6, wherein two adjacent said umbrella bodies are detachably connected by a connecting member.
The umbrella cover according to claim 9, wherein two adjacent ones of the umbrella bodies are respectively provided with a third connecting portion and a fourth connecting portion which are coupled with the connecting member; when the connecting member is When the third connecting portion and the fourth connecting portion are connected, the lower surfaces of the third connecting portion and the fourth connecting portion are flush with the lower surface of the umbrella cover, and the upper surface of the connecting member is The upper surface of the umbrella cover is flush.
The umbrella cover according to claim 9, wherein two adjacent ones of the umbrella bodies are respectively mated with the connecting member through the second protrusion and the second through hole, the umbrella body and the connecting piece One of the second protrusions is disposed on one of the sides, and the corresponding second through hole is disposed on the other side.
The umbrella cover according to claim 6, wherein the two outermost umbrella bodies are symmetrical and replaceable with each other.
The umbrella cover according to claim 1, wherein the insulator comprises a main body and an shed extending outward from the main body; the umbrella cover is provided with a receiving cavity communicating with the mounting hole, The mounting hole can be pierced by the main body, and the accommodating cavity can receive the shed.
The umbrella cover according to claim 1, wherein the insulator comprises a main body and an shed extending outward from the main body; and the sleeve is provided with a fastening sleeve at a position corresponding to the mounting hole. The fastening sleeve extends away from the outer surface of the umbrella sleeve, and the fastening sleeve is sleeved on the main body.
The umbrella cover according to claim 1, wherein a straight line on the umbrella cover that communicates with the center of at least two of the mounting holes is a center line, and the openings are all distributed on the same side of the center line.
The umbrella cover according to claim 1, wherein the umbrella cover is in the shape of a golf ball, and includes a semicircular shape on both sides and a rectangle between the semicircles; and a center of the mounting hole on both sides respectively It coincides with the center of the semicircle on both sides.
An electrical device, comprising:

At least two insulators;

The umbrella cover according to any one of claims 1 to 16, wherein the umbrella cover is sleeved on at least two of the insulators through the opening.
The electrical device according to claim 17, further comprising a housing, at least two of said insulators being coupled to said housing through a housing connection; said umbrella cover covering at least said housing connection .