CN220064202U

CN220064202U - Preassembled sleeve-shaped voltage sensor

Info

Publication number: CN220064202U
Application number: CN202320918219.4U
Authority: CN
Inventors: 何鹏飞
Original assignee: Hunan Meizhi Technology Co ltd
Current assignee: Hunan Meizhi Technology Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-11-21
Anticipated expiration: 2033-04-21

Abstract

The utility model belongs to the technical field of sensors, and particularly relates to a preassembled sleeve-shaped voltage sensor, which comprises a sensor main body, wherein the sensor main body comprises a ceramic capacitor and a preassembled layer, the ceramic capacitor is arranged in the preassembled layer in advance, a first connecting end is arranged at the top of the preassembled layer, and the ceramic capacitor is connected with the first connecting end; the material of the pre-installed layer is epoxy resin. According to the utility model, a first connecting end is arranged at the top of the preassembled layer, and the ceramic capacitor is connected with the first connecting end; the material of pre-installation layer is epoxy, and then realizes integrative integrated sensor, makes the user need not each condenser of recombination when using, also need not to fix each condenser respectively, and then has promoted the convenience when using, promotes assembly rate and convenience of use, realizes pre-installation condenser.

Description

Preassembled sleeve-shaped voltage sensor

Technical Field

The utility model belongs to the technical field of sensors, and particularly relates to a preassembled sleeve-shaped voltage sensor.

Background

Currently, various capacitors are used as sampling capacitors, for example, patent publication number CN206602036U discloses a wafer type high-voltage ceramic capacitor, which comprises a resin housing and a ceramic dielectric, wherein a ceramic dielectric mounting cavity is arranged in the resin housing, a first electrode and a second electrode are respectively arranged at two opposite sides in the ceramic dielectric mounting cavity, the ceramic dielectric is concavely arranged between the first electrode and the second electrode, two sides of the ceramic dielectric are respectively connected with the first electrode and the second electrode, a first terminal is arranged at one side of the first electrode far away from the ceramic dielectric, a second terminal is arranged at one side of the second electrode far away from the ceramic dielectric, and soldering tin is respectively arranged at the joint of the first electrode and the first terminal and the joint of the second electrode and the second terminal.

Although the wafer-type high-voltage ceramic capacitor in the above patent document can increase the creepage distance and has a certain advantage, it still has a drawback, particularly in the prior art, when using such a capacitor, a plurality of capacitors are needed to be connected respectively and then connected with other parts, which results in the assembly when affecting the use, and the reduction of the pairing efficiency, and the problem of inconvenient use.

Disclosure of Invention

The utility model aims to provide a preassembled sleeve-shaped voltage sensor, which aims to solve the technical problems that in the prior art, a capacitor needs to be connected with other parts when in use, so that the assembly during use is affected and the pairing efficiency is reduced.

In order to achieve the above object, an embodiment of the present utility model provides a pre-assembled sleeve-shaped voltage sensor, including a sensor body, where the sensor body includes a ceramic capacitor and a pre-assembled layer, the ceramic capacitor is pre-arranged in the pre-assembled layer, a first connection end is arranged on top of the pre-assembled layer, and the ceramic capacitor is connected with the first connection end; the material of the pre-installed layer is epoxy resin.

Optionally, a screw connection part is arranged on the first connection end and is used for being in screw connection with an external electric part.

Optionally, the pre-assembled layer includes an epoxy resin column, the first connection end is disposed at the top of the epoxy resin column, and the ceramic capacitor is disposed in the epoxy resin column; a base is arranged at the bottom of the epoxy resin column; the base is square, and the cross-sectional area of the base is larger than the cross-sectional area of the epoxy resin column.

Optionally, the middle part of the epoxy resin column extends to the outside far away from the epoxy resin column to form an extension column, and the ceramic capacitor is accommodated in the extension column.

Optionally, a second connection end is provided at the front end of the extension column, and the ceramic capacitor provided in the extension column is connected with the second connection end.

Optionally, a thread is provided on the second connection end, the thread being used for connecting an external electrical component.

Optionally, the ceramic capacitors are plural in number, and each ceramic capacitor is connected in parallel.

Optionally, the ceramic capacitor is a ring-shaped high voltage ceramic capacitor.

Optionally, a lamellar bulge is further arranged on the outer side of the epoxy resin cylinder.

Optionally, the number of the layered protrusions is multiple, and each layered protrusion is arranged at equal intervals.

The one or more technical schemes in the preassembled sleeve-shaped voltage sensor provided by the embodiment of the utility model have at least one of the following technical effects:

the ceramic capacitor is arranged in the pre-installation layer in advance, and a first connecting end is arranged at the top of the pre-installation layer, and is connected with the first connecting end; the material of pre-installation layer is epoxy, and then realizes integrative integrated sensor, makes the user need not each condenser of recombination when using, also need not to fix each condenser respectively, and then has promoted the convenience when using, promotes assembly rate and convenience of use, realizes pre-installation condenser.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a preloaded sleeve-shaped voltage sensor according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a preloaded sleeve-shaped voltage sensor according to another embodiment of the present utility model;

fig. 3 is a block diagram of a preloaded bushing-shaped voltage sensor according to the present utility model.

Wherein, each reference sign in the figure:

100. a sensor body;

110. a ceramic capacitor; 120. pre-installing a layer; 121. an epoxy resin column; 122. a base; 123. an extension column; 124. a second connection end; 125. a layered protrusion; 130. a first connection end; 140. and a screw connection part.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 to 3, a pre-assembled sleeve-shaped voltage sensor is provided, including a sensor body, wherein the sensor body includes a ceramic capacitor and a pre-assembled layer, the ceramic capacitor is pre-arranged in the pre-assembled layer, a first connection terminal is arranged on the top of the pre-assembled layer, and the ceramic capacitor is connected with the first connection terminal; the material of the pre-installed layer is epoxy resin.

In one embodiment of the present utility model, as shown in fig. 1 to 3, a screw portion is provided on the first connection end, and the screw portion is used for screw connection with an external electrical component. Through setting up the spiro union portion, realize quick spiro union, facilitate the use.

In one embodiment of the present utility model, as shown in fig. 1-3, the pre-assembled layer includes an epoxy column, the first connection terminal is disposed on top of the epoxy column, and the ceramic capacitor is disposed in the epoxy column; a base is arranged at the bottom of the epoxy resin column; the base is square, and the cross-sectional area of the base is larger than the cross-sectional area of the epoxy resin column. In this embodiment, by providing the base, and making the cross-sectional area of the base be greater than the cross-sectional area of the epoxy resin column, the pre-installed sleeve-shaped voltage sensor is more stable when placed.

In one embodiment of the present utility model, as shown in fig. 1-3, the middle portion of the epoxy cylinder extends away from the outside of the epoxy cylinder to form an extension cylinder in which the ceramic capacitor is housed.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the front end of the extension column is provided with a second connection end, and the ceramic capacitor provided in the extension column is connected to the second connection end.

In one embodiment of the utility model, as shown in fig. 1-3, the second connection end is provided with threads for connecting to an external electrical component.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the ceramic capacitors are plural in number, and each of the ceramic capacitors is connected in parallel.

In one embodiment of the present utility model, as shown in fig. 1-3, the ceramic capacitor is a ring-shaped high voltage ceramic capacitor. In this embodiment, the ring-shaped high-voltage ceramic capacitor may be a capacitor as shown in patent document publication No. CN 306595907S.

Alternatively, the annular high-voltage ceramic capacitor may be a wafer-type high-voltage ceramic capacitor as shown in the patent document of the utility model having publication number CN 206602036U.

In the embodiment, the used annular high-voltage ceramic capacitor has small size and high safety and reliability, and the temperature drift of the capacitor can be controlled within +/-0.15, thus being suitable for voltage sampling and protection.

In one embodiment of the utility model, the ceramic capacitor can also be a square ceramic capacitor, namely a preassembled square high-voltage ceramic capacitor component is formed, namely the square ceramic capacitor or the wafer ceramic capacitor is connected in parallel to form a strip, and then the capacitor component is processed into an epoxy packaging product in a vacuum glue injection mode, so that a breaker manufacturer can use APG pressure gel equipment as secondary packaging. The solid-sealed polar pole in the mode is of a bulge structure, and the difficulty of a resin process is solved through an epoxy pre-bulge mode, the overall dimension of the product is large, and the height of the polar pole can be controlled to be the lowest.

In actual use, the sand blasting treatment of the epoxy surface of the square-bar-shaped high-voltage ceramic capacitor is needed to ensure that the epoxy resin of the pressure gel process is completely integrated with the epoxy resin; in addition, the output lead of the square strip capacitor penetrates out of the shielding net, contact is avoided, and the shielding net cannot deviate during hoisting; in addition, the height of the shielding net is consistent with that of the capacitor, and in addition, the ring-shaped high-voltage capacitor is preheated for more than half an hour before the epoxy encapsulation, and the temperature is controlled within 80-120 ℃.

In one embodiment of the present utility model, as shown in fig. 1-3, the outer side of the epoxy column is further provided with a lamellar protrusion.

The number of the lamellar bulges is multiple, and the lamellar bulges are arranged at equal intervals.

In the embodiment, the perfect combination of the high-voltage annular capacitor and the vacuum bubble is realized, and the whole electric field distribution of the circuit breaker is more uniform. The structural design is more reasonable, the polar column does not have bulges or redundant bulges, and the appearance is concise and beautiful. The strontium titanate class I ceramic is adopted, so that the capacity and dielectric loss are stable, the service life is long, the precision is high, and the reliability is high.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The preassembled bushing-shaped voltage sensor comprises a sensor main body and is characterized in that the sensor main body comprises a ceramic capacitor and a preassembled layer, wherein the ceramic capacitor is arranged in the preassembled layer in advance, a first connecting end is arranged at the top of the preassembled layer, and the ceramic capacitor is connected with the first connecting end; the material of the pre-installed layer is epoxy resin.

2. The preloaded bushing-shaped voltage sensor according to claim 1, characterized in that a screw connection is provided on the first connection end, said screw connection being intended for screw connection with an external electrical component.

3. The preloaded bushing-shaped voltage sensor of claim 1 wherein said preloaded layer comprises an epoxy cylinder, said first connection end being disposed on top of said epoxy cylinder, said ceramic capacitor being disposed within said epoxy cylinder; a base is arranged at the bottom of the epoxy resin column; the base is square, and the cross-sectional area of the base is larger than the cross-sectional area of the epoxy resin column.

4. A preloaded sleeve-shaped voltage sensor according to claim 3, characterized in that the central part of the epoxy cylinder extends away from the outside of the epoxy cylinder to form an extension cylinder in which the ceramic capacitor is accommodated.

5. The preloaded bushing-shaped voltage sensor according to claim 4, wherein the front end of the extension post is provided with a second connection terminal, and the ceramic capacitor provided in the extension post is connected to the second connection terminal.

6. The preloaded sleeve-shaped voltage sensor according to claim 5, wherein the second connection end is provided with a thread for connecting to an external electrical component.

7. The preloaded bushing-shaped voltage sensor of any one of claims 1-6 wherein the number of ceramic capacitors is a plurality, each of said ceramic capacitors being connected in parallel.

8. The preloaded bushing-shaped voltage sensor according to claim 1, wherein the ceramic capacitor is a ring-shaped high voltage ceramic capacitor.

9. A preloaded sleeve-shaped voltage sensor according to claim 3, characterized in that the outer side of the epoxy cylinder is further provided with lamellar projections.

10. The preloaded bushing-shaped voltage sensor of claim 9 wherein said number of layered protrusions is a plurality, each of said layered protrusions being equally spaced.