阅读说明：本技术 一种电馈通保护套 (Electric feed-through protective sleeve ) 是由 赵嘉峰 周波 谢斌平 卞凯凯 于 2019-10-31 设计创作，主要内容包括：本发明提供了一种电馈通保护套,用于解决现有技术中电馈通容易发生短路、安全性低、容易损坏的技术问题；包括：外保护套和绝缘内保护套；其中,所述内保护套包括电馈通凹槽、电极保护延长端、隔板和热偶通孔；所述外保护套包括形状贴合所述内保护套的内保护套槽和贴合所述电极保护延长端的电极端；实施本发明的技术方案,设置外保护套和内保护套,内保护套无需直接接触电极,同时使用内保护套隔离两电极,避免两电极接触短路、提高电路安全性,并可防止电极受碰撞损坏,延长装置寿命；通过固定环、螺钉等结构连接,外保护套套嵌安装在内保护套中,安装拆卸方便,装置成本低廉。(The invention provides an electric feed-through protective sleeve which is used for solving the technical problems that an electric feed-through is easy to generate short circuit, low in safety and easy to damage in the prior art; the method comprises the following steps: an outer protective sleeve and an insulating inner protective sleeve; wherein the inner protective sleeve comprises an electric feed-through groove, an electrode protection extension end, a partition plate and a thermocouple through hole; the outer protective sleeve comprises an inner protective sleeve groove and an electrode end, the shape of the inner protective sleeve groove is fit with that of the inner protective sleeve, and the electrode end is fit with the electrode protection extension end; according to the technical scheme, the outer protective sleeve and the inner protective sleeve are arranged, the inner protective sleeve does not need to directly contact with the electrodes, the inner protective sleeve is used for isolating the two electrodes, the two electrodes are prevented from being in contact short circuit, the circuit safety is improved, the electrodes can be prevented from being damaged by collision, and the service life of the device is prolonged; through the structural connection of solid fixed ring, screw etc., outer protective sheath inlays the installation in the protective sheath including, and the installation is dismantled conveniently, installs low cost.)

1. An electrical feed-through protection sleeve, comprising: an outer protective sleeve and an insulating inner protective sleeve; wherein the content of the first and second substances,

the inner protective sleeve comprises an electric feed-through groove, an electrode protection extension end, a partition plate and a thermocouple through hole;

the electrode protection extension end and the partition plate are arranged on one side, away from the electric feed-through groove, of the inner protection sleeve;

the electrode protection extension end comprises two electrode grooves communicated with the electric feed-through groove;

the electrode protection extension end and the thermocouple through hole are respectively arranged on two sides of the partition plate;

the outer protective sleeve comprises an inner protective sleeve groove and an electrode end, the shape of the inner protective sleeve groove is fit with that of the inner protective sleeve, and the electrode end is fit with the electrode protection extension end;

the inner protective sleeve is detachably fixed to the inner protective sleeve groove.

2. The electrical feed-through protection sleeve of claim 1, wherein the outer protection sleeve is provided with a first screw hole matched with the inner protection sleeve, the first screw hole is arranged on one side of the inner protection sleeve groove close to the electrode end, and the number of the first screw holes is greater than or equal to one.

3. An electrical feed-through sheath as defined in claim 2, wherein said outer sheath is provided with a second threaded hole through which it is removably secured to the electrical feed-through, said second threaded hole being provided on a side of said inner sheath groove remote from said electrode end, said second threaded hole being greater than or equal to one in number.

4. The electrical feed-through protective sheath of claim 3, further comprising a fixing ring, wherein an annular groove is formed inside the outer protective sheath, the fixing ring is clamped in the annular groove, the inner protective sheath is inserted into the inner protective sheath groove from one side of the electrode end and clamped to the fixing ring.

5. The electrical feed-through sheath of claim 4, wherein the annular recess is disposed between the first threaded hole and the second threaded hole.

6. An electrical feed-through sheath as defined in claim 5, wherein the material of the inner sheath comprises a high temperature resistant insulating teflon.

7. An electrical feed-through sheath according to claim 6, wherein the edges of the electrode slots are chamfered.

Technical Field

The invention relates to the field of electrode protection devices, in particular to an electric feed-through protective sleeve.

Background

In the field of ultrahigh-temperature and ultrahigh-vacuum experiments, devices such as evaporation sources and the like often need to be communicated to a power supply in a vacuum environment. However, the power supply device in daily life is not suitable for the ultra-high temperature and ultra-high vacuum environment because of the problems of the power supply device such as the failure of high temperature resistance and the occurrence of air bleeding in the ultra-high vacuum environment. In the prior art, in such experiments, it is common to use low vapor pressure metals powered to a vacuum environment through electrical feedthroughs made by welding to ceramics.

However, in the prior art, the electric feed-through often uses exposed electrodes, and the short circuit problem is easy to occur between leads. In addition, in the power grafting process, the electrode receives the collision easily to take place slope or fracture damage, damage even with ceramic welding department, nevertheless the replacement cost is higher, need suspend the experiment even and open vacuum chamber and change the electric feed-through, seriously influence the experiment progress.

Accordingly, there is a need for an electrical feed-through protective sheath that provides effective protection for an electrical feed-through electrode that improves electrical safety.

Disclosure of Invention

In order to solve the technical problem, the invention discloses an electric feed-through protective sleeve, and the technical scheme of the invention is implemented as follows:

an electrical feed-through protection sleeve comprising: an outer protective sleeve and an insulating inner protective sleeve; wherein the inner protective sleeve comprises an electric feed-through groove, an electrode protection extension end, a partition plate and a thermocouple through hole; the electrode protection extension end and the partition plate are arranged on one side, away from the electric feed-through groove, of the inner protection sleeve; the electrode protection extension end comprises two electrode grooves communicated with the electric feed-through groove; the electrode protection extension end and the thermocouple through hole are respectively arranged on two sides of the partition plate; the outer protective sleeve comprises an inner protective sleeve groove and an electrode end, the shape of the inner protective sleeve groove is fit with that of the inner protective sleeve, and the electrode end is fit with the electrode protection extension end; the inner protective sleeve is detachably fixed to the inner protective sleeve groove.

Preferably, the outer protective sheath is provided with a first screw hole matched with the inner protective sheath, the first screw hole is formed in one side, close to the electrode end, of the inner protective sheath groove, and the number of the first screw holes is larger than or equal to one.

Preferably, outer protective sheath sets up the second screw, through the detachable fixed to the electricity feed through of second screw, the second screw set up in interior protective sheath groove is kept away from one side of electrode end, the quantity more than or equal to one of second screw.

Preferably, the electric feed through protective sheath still includes solid fixed ring, outer protective sheath inboard sets up the annular groove, and solid fixed ring joint is in the annular groove, interior protective sheath is followed electrode end one side inserts interior protective sheath groove, the joint extremely gu fixed ring.

Preferably, the annular groove is disposed between the first screw hole and the second screw hole.

Preferably, the material of the inner protective sheath comprises high temperature resistant insulating teflon.

Preferably, the edges of the electrode slots are chamfered.

By implementing the technical scheme of the invention, the technical problems that the electric feed-through is easy to generate short circuit, low in safety and easy to damage in the prior art can be solved; according to the technical scheme, the outer protective sleeve and the inner protective sleeve are arranged, the inner protective sleeve does not need to directly contact with the electrodes, the inner protective sleeve is used for isolating the two electrodes, the two electrodes are prevented from being in contact short circuit, the circuit safety is improved, the electrodes can be prevented from being damaged by collision, and the service life of the device is prolonged; through the structural connection of solid fixed ring, screw etc., outer protective sheath inlays the installation in the protective sheath including, and the installation is dismantled conveniently, installs low cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of one embodiment of the present invention;

FIG. 2 is a schematic view of a protective cover installation configuration according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an outer protective sheath according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an inner protective sheath according to an embodiment of the present invention.

In the above drawings, the reference numerals denote:

1-an outer protective sheath; 2-inner protective sleeve; 3-an electrical feed-through recess; 4-electrode protection extension end; 5-a separator; 6-thermocouple via holes; 7-electrode groove; 8-inner protective sleeve groove; 9-electrode terminal; 10-a first screw hole; 11-a second screw hole; 12-a fixed ring; 13-annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In one embodiment of the present invention, an electrical feed-through sheath, as shown in fig. 1, 2, 3 and 4, comprises: an outer protective sleeve 1 and an insulating inner protective sleeve 2; wherein, the inner protective sleeve 2 comprises an electric feed-through groove 3, an electrode protection extension end 4, a clapboard 5 and a thermocouple through hole 6; the electrode protection extension end 4 and the partition plate 5 are arranged on one side of the inner protection sleeve 2, which is far away from the electric feed-through groove 3; the electrode protection extension end 4 comprises two electrode slots 7 communicating with the electric feed-through recess 3; the electrode protection extension end 4 and the thermocouple through hole 6 are respectively arranged at two sides of the partition plate 5; the outer protective sleeve 1 comprises an inner protective sleeve groove 8 and an electrode end 9, wherein the shape of the inner protective sleeve groove is fit with that of the inner protective sleeve 2, and the electrode end is fit with the electrode protection extension end 4; the inner protective sheath 2 is detachably fixed to the inner protective sheath groove 8.

In this embodiment, the electric feed-through is inserted into the electric feed-through groove 3 from one side of the electric feed-through groove 3 for fixation, after the installation is completed, two electrode parts of the electric feed-through are separated between two electrode grooves 7, the inner protective sleeve 2 is insulated, the problems of short circuit and the like caused by mutual contact can be avoided, and the safety of the electric feed-through is improved. The inner protective sleeve 2 is made of materials with certain strength, can protect the electrode, and is beneficial to avoiding the electrode from bending and breaking. The size and shape of the electrode tank 7 can be selected according to the type of the external electric device. The thermocouple passes through the thermocouple through hole 6 and is separated from the electrode by the partition plate 5, so that short circuit or damage of the thermocouple caused by abnormal deformation of the electrode can be prevented. Because the electrode is easy to release heat in the working process, the partition plate 5 is used for isolating the thermocouple and the electrode, and the influence of the temperature of the electrode on the measurement precision of the thermocouple can be reduced, so that the thermocouple can measure the ambient temperature more reliably.

Interior protective sheath 2 separately sets up with outer protective sheath 1, through the mode installation that the cover inlayed, it is convenient to install and dismantle. The outer protective sleeve 1 is used for being fixed to an electric feed-through, so that the electrode groove 7 and the thermocouple through hole 6 do not need to be in direct contact with an electrode and a thermocouple of the electric feed-through, the safety is high, and the normal work of the electrode and the thermocouple is facilitated.

The outer protective sheath 1 can be made of high temperature resistant materials such as ceramics, and can also be made of metal materials with low vapor pressure, and the outer protective sheath has high strength, so that the device can be stably fixed to an electric feed-through, and meanwhile, the device is suitable for high-temperature and high-vacuum environments, and the compatibility of the device is improved.

In a preferred embodiment, as shown in fig. 1, 2, 3 and 4, the outer protective sheath 1 and the inner protective sheath 2 are provided with a first threaded hole 10 in cooperation, the first threaded hole 10 being provided on the side of the inner protective sheath groove 8 near the electrode end 9. The outer protective sleeve 1 and the inner protective sleeve 2 can be fixed by screws, and the number of the first screw holes 10 can be set to be multiple, so that the outer protective sleeve 1 and the inner protective sleeve 2 are stably connected. Through using the first screw 10 of different positions, can change the relative position of outer protective sheath 1 and interior protective sheath 2, make the device be suitable for the electric feed through of multiple specification, improve the compatibility of product.

In a preferred embodiment, as shown in fig. 1, 2 and 3, the outer protective sheath 1 is provided with a second threaded hole 11 by means of which the outer protective sheath 1 is detachably fastened to the electrical feed-through, the second threaded hole 1 being provided on the side of the inner protective sheath groove 8 remote from the electrode end 9. The second screw hole 11 can be provided in a plurality, and a user can select a proper second screw hole 11 to install according to the specification, shape and other parameters of the electric feed-through, so that the device is suitable for different kinds of electric feed-through.

In a preferred embodiment, an electrical feed-through protective sleeve, as shown in fig. 1 and 3, further comprises a fixing ring 12, an annular groove 13 is provided inside the outer protective sleeve 1, and the fixing ring 12 is clamped in the annular groove 13. The fixed ring 12 can use the elastic high-temperature-resistant metal ring with the notch to be installed in the annular groove 13 to support the inner protective sleeve 2, so that the inner protective sleeve 2 is prevented from moving towards the electric feed-through direction, the contact electrode and the thermocouple of the inner protective sleeve 2 can be avoided when needed, and the stability of the device is improved.

In a preferred embodiment, the annular recess 13 is provided between the first threaded hole 10 and the second threaded hole 11, and the inner protective sheath 2 is small, which contributes to reducing the overall volume of the device.

In a preferred embodiment, as shown in fig. 1, 2 and 4, the inner protective sheath 2 is a high temperature resistant insulating teflon material. The Teflon material has self-lubricating property, so that the device is convenient to assemble and install; the Teflon material has good chemical stability, can resist high temperature of about 240 ℃, does not react with an electric feed-through, an electrode or a thermocouple, and can improve the reliability of the device.

In a preferred embodiment, the edge of the electrode groove 7 is provided with a chamfer to guide the electric device in the vacuum cavity to be connected with the electrode, so that the electrode is prevented from being crushed in the reconnection process of the electric device, and the service life of the device is prolonged.

It should be understood that the above-described embodiments are merely exemplary of the present invention, and are not intended to limit the present invention, and that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.