CN114446494B - Limit switch in high vacuum space - Google Patents
Limit switch in high vacuum space Download PDFInfo
- Publication number
- CN114446494B CN114446494B CN202210050439.XA CN202210050439A CN114446494B CN 114446494 B CN114446494 B CN 114446494B CN 202210050439 A CN202210050439 A CN 202210050439A CN 114446494 B CN114446494 B CN 114446494B
- Authority
- CN
- China
- Prior art keywords
- limit
- shell
- limit electrode
- limit switch
- button
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 7
- 230000004927 fusion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
- G21B1/19—Targets for producing thermonuclear fusion reactions, e.g. pellets for irradiation by laser or charged particle beams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Lasers (AREA)
Abstract
An internal limit switch suitable for a high-vacuum space of a high-power laser light path comprises a shell, a cushion block, a limit electrode contact piece, a spring, a limit electrode button and a cover plate. The invention has the characteristics of strong tightness, simple structure, small volume and high positioning precision, avoids the influence of common limit on the vacuum environment and the damage of the vacuum environment on the limit switch, and can realize the safe, efficient adjustment and accurate positioning of the motion structure in the vacuum.
Description
Technical Field
The invention belongs to the field of high-power laser, and relates to a limit switch suitable for a high-vacuum space in a high-power laser light path.
Background
The motion mechanism is an indispensable important component of a large-scale inertial confinement fusion laser device, and is an important guarantee of efficient and precise operation of inertial confinement fusion. The motion state of the motion mechanism is not only the guarantee of device safety, simultaneously meets the debugging requirement of the device, has a large number of motion mechanisms working under high vacuum state in a large-scale inertial confinement fusion laser device, and a common limit switch not only can cause vacuum environment pollution to influence vacuum degree, but also can damage the limit switch due to stray light, so that the vacuum limit on the market is high in price, the problem of exposed welding points can exist in the use process, and meanwhile, the problem of adsorption exists in the partial vacuum limit switch in the vacuum pumping process, so that the vacuum limit switch fails, the problems of vacuum maintenance and the like are required to be opened, the efficiency is not only influenced, and the potential safety hazard also exists.
Along with the rapid development of the laser fusion technology, the rapid increase of the aperture and the number of light beams, the increase of the length of the light paths and the number of components and parts, the requirement on the positioning precision of a motion system is higher and higher, the requirement on the motion and positioning mechanism of a motion mechanism in vacuum is stricter due to the special environment where the motion mechanism is positioned, and the positioning of the motion mechanism in the vacuum environment is still finished by adopting a common limit switch. On the one hand, such limit switches have an influence on the vacuum environment, and long-term or large-scale use has an influence on the vacuum degree. On the other hand, because the light path and the structure in the vacuum of the large inertial confinement fusion laser device are extremely complex, the common limit switch has limited service life due to the influence of the structure and the environment, thereby influencing the safety and the debugging efficiency of the device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the limit switch in the high-vacuum space, which is suitable for a high-power laser light path, has the characteristics of strong tightness, simple structure, small volume and high positioning precision, can avoid the influence of common limit on the vacuum environment and the damage of the vacuum environment on the limit switch, and can realize the safe, efficient adjustment and accurate positioning of a moving structure in vacuum.
The technical scheme of the invention is as follows:
the utility model provides an interior limit switch in high vacuum space, its characteristics include shell, cushion, spacing electrode contact piece, spring, spacing electrode button and apron, the top of spacing shell have to the fixed cell body of apron have in the shell recess type cushion with spacing electrode contact piece fix the top in the shell, the touch point on spacing electrode button upper portion wear out from the top of shell, the lower extreme of spring fix in the bottom recess of cushion, the upper end of this spring with spacing electrode button lower spring fixed column connection, follow spacing electrode button and spacing electrode contact piece respectively draw forth a control line, through spacing shell, cushion and apron on both sides's fixed orifices realize to the sealed fixation of shell, cushion and apron, under the assurance spacing electrode button non-press the condition, spacing electrode button with spacing electrode contact piece be the conducting state, under the external force press the condition, spacing electrode button with spacing electrode contact piece be the break-off state, realize between two lines, the on-off control line.
The shell and the limit electrode button are made of stainless steel, the electrode contact piece is made of beryllium bronze, and the cushion block is made of polytetrafluoroethylene.
The invention has the technical effects that:
the internal limit switch in the high vacuum space is suitable for a high-power laser light path, has the characteristics of strong tightness, simple structure, small volume and high positioning precision, can avoid the influence of common limit on the vacuum environment and the damage of the vacuum environment on the limit switch, and can realize the safe, efficient adjustment and accurate positioning of a vacuum internal motion structure.
Drawings
Fig. 1 is a schematic structural diagram of a high vacuum limit switch according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of the high-vacuum internal limit switch of the present invention, which is shown in the drawing, the internal limit switch of the high-vacuum space of the present invention includes a housing 101, a pad 102, a limit electrode contact pad 103, a spring 104, a limit electrode button 105 and a cover plate 106, wherein a groove body fixed to the cover plate 106 is provided at the top of the housing 101, the pad 102 having a groove in the housing 101 fixes the limit electrode contact pad 103 at the top of the housing 101, a touch point at the upper part of the limit electrode button 105 is penetrated from the top of the housing 101, the lower end of the spring 104 is fixed in a bottom groove of the pad 102, the upper end of the spring 104 is connected with a spring fixing column at the lower part of the limit electrode button 105, a control line is led out from each of the limit electrode button 105 and the limit electrode contact pad 103, the two fixing holes 107 and 108 on the left and right sides of the housing 101, the pad 102 and the cover plate 106 are used for realizing the connection and disconnection of the housing 101, the cover plate 10 and the electrode button 103 and the electrode button 106 are pressed down, and the connection between the two limit electrode buttons are ensured under the condition that the connection and disconnection of the electrode button is realized, and the connection between the two electrode buttons is not pressed, and the connection condition is ensured.
The shell 101 and the limit electrode button 105 are made of stainless steel, the electrode contact piece 103 is made of beryllium bronze, and the cushion block 102 is made of polytetrafluoroethylene. .
Experiments show that the internal limit switch in the high vacuum space is suitable for a high-power laser light path, has the characteristics of strong tightness, simple structure, small volume and high positioning precision, can avoid the influence of common limit on the vacuum environment and the damage of the vacuum environment on the limit switch, and can realize the safe, efficient adjustment and accurate positioning of a vacuum internal motion structure.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any of various other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (2)
1. The limit switch in the high vacuum space suitable for the high-power laser light path is characterized by comprising a shell (101), a cushion block (102), a limit electrode contact sheet (103), a spring (104), a limit electrode button (105) and a cover plate (106), wherein a groove body for fixing the cover plate (106) is arranged at the top of the shell (101), the cushion block (102) with a groove is arranged in the shell (101) for fixing the limit electrode contact sheet (103) at the top of the shell (101), a touch point at the upper part of the limit electrode button (105) penetrates out from the top of the shell (101), the lower end of the spring (104) is fixed in a bottom groove of the cushion block (102), the upper end of the spring (104) is connected with a spring fixing column at the lower part of the limit electrode button (105), a control wire is led out from the limit electrode button (105) and the limit electrode contact sheet (103), the two limit electrode buttons (103) are respectively pressed down in a sealing state of the shell (10) under the condition that the two limit electrode buttons (106) are pressed down, and the two limit electrode buttons (103) are fixed under the condition that the two limit electrode buttons (10 are pressed down, the limiting electrode button (105) and the limiting electrode contact piece (103) are in a disconnection state, so that the inscription between two control wires and the connection and disconnection of the wires are realized.
2. The limit switch in the high vacuum space suitable for the high power laser light path according to claim 1, wherein the shell (101) and the limit electrode button (105) are made of stainless steel, the limit electrode contact piece (103) is made of beryllium bronze, and the cushion block (102) is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050439.XA CN114446494B (en) | 2022-01-17 | 2022-01-17 | Limit switch in high vacuum space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050439.XA CN114446494B (en) | 2022-01-17 | 2022-01-17 | Limit switch in high vacuum space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114446494A CN114446494A (en) | 2022-05-06 |
| CN114446494B true CN114446494B (en) | 2024-04-12 |
Family
ID=81368100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210050439.XA Active CN114446494B (en) | 2022-01-17 | 2022-01-17 | Limit switch in high vacuum space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114446494B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171472A (en) * | 1978-04-21 | 1979-10-16 | Elliott Lynn T | Geared limit switch |
| US4514603A (en) * | 1984-02-21 | 1985-04-30 | E.M.B. Corporation | Door operated switch assembly |
| CN1244023A (en) * | 1998-08-04 | 2000-02-09 | 精工电子工业株式会社 | Composite switch for electronic equipment |
| CN204905066U (en) * | 2015-08-11 | 2015-12-23 | 北京微纳光科仪器有限公司 | Vacuum limit switch subassembly |
| CN212874282U (en) * | 2020-08-21 | 2021-04-02 | 驭芯科技（上海）有限公司 | Forklift limit switch |
-
2022
- 2022-01-17 CN CN202210050439.XA patent/CN114446494B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171472A (en) * | 1978-04-21 | 1979-10-16 | Elliott Lynn T | Geared limit switch |
| US4514603A (en) * | 1984-02-21 | 1985-04-30 | E.M.B. Corporation | Door operated switch assembly |
| CN1244023A (en) * | 1998-08-04 | 2000-02-09 | 精工电子工业株式会社 | Composite switch for electronic equipment |
| CN204905066U (en) * | 2015-08-11 | 2015-12-23 | 北京微纳光科仪器有限公司 | Vacuum limit switch subassembly |
| CN212874282U (en) * | 2020-08-21 | 2021-04-02 | 驭芯科技（上海）有限公司 | Forklift limit switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114446494A (en) | 2022-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201527937U (en) | Multifunctional electromagnetic relay with small volume | |
| CN215145891U (en) | Laser welding pressure head and laser welding machine | |
| CN104299818A (en) | Keyboard key | |
| CN114446494B (en) | Limit switch in high vacuum space | |
| CN220873491U (en) | High-voltage direct-current relay with main loop working state monitoring function | |
| CN202650905U (en) | Waterproof microswitch | |
| CN219105972U (en) | Novel switch for blocking silver ions from climbing | |
| CN204117903U (en) | A kind of keyboard | |
| CN108123499A (en) | Charging assembly, charging case and charging unit | |
| CN107068462B (en) | Mechanical thin film keyboard | |
| CN110473744A (en) | A kind of DC relay carrying out arc extinguishing based on magnet steel | |
| CN201638697U (en) | Micro-switch structure | |
| CN208385242U (en) | A kind of independent band sound presses axis and photoinduction ultra-thin keyboard | |
| CN111933553A (en) | A high leakproofness seal welding structure for 5G chip | |
| CN111496381A (en) | Device and method for assembling and packaging isotope battery | |
| CN219832510U (en) | Arc extinguishing pressure controller with contact | |
| CN105632822A (en) | Key structure and mobile terminal | |
| CN206163371U (en) | Exchange speed governing switch | |
| CN216250489U (en) | Mute touch switch key structure of intelligent robot | |
| CN220419389U (en) | Semiconductor chip test seat | |
| CN208503986U (en) | LED bulb power panel with power supply line holding shrapnel | |
| CN221040900U (en) | High life's tact switch | |
| CN205723281U (en) | A kind of clamping terminal and apply the keyboard of this clamping terminal | |
| CN214336603U (en) | Touch switch with illumination function | |
| CN215069740U (en) | Intelligent switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |