CN2817044Y - Sealed safety switch - Google Patents
Sealed safety switch Download PDFInfo
- Publication number
- CN2817044Y CN2817044Y CN 200520074315 CN200520074315U CN2817044Y CN 2817044 Y CN2817044 Y CN 2817044Y CN 200520074315 CN200520074315 CN 200520074315 CN 200520074315 U CN200520074315 U CN 200520074315U CN 2817044 Y CN2817044 Y CN 2817044Y
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- magnetic action
- action body
- passage
- stationary contact
- movable contact
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Abstract
The utility model relates to a sealed safety switch. The utility model is characterized in that the utility model comprises a sealed cavity which is formed by sealing a casing. The inside of the sealed cavity is provided with a path, at least one end of the two ends of the path is provided with two static contact bodies at intervals, and the two static contact bodies form a pair of static contact bodies on which the connection end of a switch is led out. A movable contact body is arranged in the path in correspondence with the two static contact bodies, the movable contact body is an internal magnetic action body or is fixed with an internal magnetic action body, and an external magnetic action body is arranged outside the sealed cavity in correspondence with one end of the path. Either the internal magnetic action body or the external magnetic action body is a permanent magnet, and either the internal magnetic action body or the external magnetic action body is a magnetic conducting body or both the internal magnetic action body and the external magnetic action body are permanent magnets. The internal magnetic action body and the external magnetic action body interact with each other by magnetic force so as to drive the movable contact body to move between the two ends of the path to switch the operating state. The utility model aims at special requirements in combustible and explosive situations and humid environment, and has simple structure, low cost and reliable operation.
Description
Technical field
The utility model relates to a kind of switch, is specifically related to a kind of sealingly secure switch.This switch comes the opening-closing structure of sealed contacts by airtight housing, has good fail safe, is applicable to various liquid or moist environment, and the occasion that the electric spark requirement of explosion proof is arranged.
Background technology
Switch now extensively applies to every field such as people's life, production as the device of a kind of connection, open circuit.In general, switch structurally mainly comprises two static contacts and a movable contact spring, and the operation movable contact spring makes it to contact not with two static contacts, promptly realizes the break-make of switch.But some special occasions, particular surroundings have proposed special requirement to switch, when being used for the producer that there are inflammable explosive article in chemical industry, weaving etc., the electric spark of the dynamic and static contact break-make of switch moment generation, just may cause fire even blast, therefore, just must develop safety switch that electric spark does not leak outside or explosion-proof type for these occasions; When being used for water tower, water tank, switch is in the wet environment for a long time, even also wants long period of soaking in liquid, and this moment, switch just must humidity and good insulating.In the market, for satisfying different occasions and environment requirement, though developed various safety switches targetedly, but, generally speaking, when existing safety switch on the market uses, still have following defective under above two kinds of situations: 1, structure is too complicated; 2, cost is very high; 3, the functional reliability that has is high not enough.
For this reason, from the practical application angle, how designing safety switch a kind of both simple in structure, safe and reliable again, is those skilled in the art of the present technique's good problems to study.
Summary of the invention
The utility model has designed a kind of sealingly secure switch at the specific (special) requirements of inflammable and explosive occasion and wet environment, and this safety switch is simple in structure entirely, with low cost, reliable operation.
For achieving the above object, the technical solution adopted in the utility model is: a kind of sealingly secure switch, comprise a seal chamber that constitutes by housing seal, be provided with a passage in the seal chamber, at least one end is arranged at intervals with two stationary contact bodies in the two ends of passage, it is right that two stationary contact bodies constitute the stationary contact body, from the stationary contact body to drawing the link of switch; Corresponding two stationary contact bodies are provided with a movable contact body in passage, this movable contact body contacts above-mentioned two stationary contact bodies simultaneously at an end of passage, constitutes an operating state with this, and this movable contact body separates with above-mentioned two stationary contact bodies at the passage other end, constitutes another operating state with this; The movable contact body this as magnetic action body in being fixed with on interior magnetic action body or its, magnetic action body outside outside cavity, being provided with corresponding to an end of passage, in interior magnetic action body and the outer magnetic action body, one is permanent magnet, another is a magnetic conductor, or two be permanent magnet, between interior magnetic action body and outer magnetic action body with magnetic interaction, drive the movable contact body and between the passage two ends, move the switch operating state.
Related content in the technique scheme is explained as follows:
1, in the such scheme, it is right respectively to establish a stationary contact body at the two ends of passage, and the movable contact body to contacting, constitutes an operating state with this at an end of passage and a stationary contact body; This movable contact body moves to the passage other end and above-mentioned stationary contact body to separating, and with another stationary contact body to contacting, constitute another operating state with this; The movable contact body promptly switches in this two operating state, constitutes ganged switch.
2, in the such scheme, further concrete scheme can be: described movable contact body is a movable contact spring, and it is in being located at passage, and its contact-making surface is right towards the stationary contact body; The magnetic action body is a permanent magnetism sheet in described, and its forward and backward surface is respectively two magnetic pole strengths, fixedlys connected with the movable contact spring back side with the one magnetic pole strength; Outer magnetic action body also is a permanent magnetism sheet, and it is movably arranged on outside the annular seal space, parallel with interior magnetic action body, it attract with its variation towards the magnetic pole strength of interior magnetic action body or repel in the magnetic action body, drive movable contact spring action with this.
In the above scheme, the concrete preferable plan of establishment of outer magnetic action body has following three kinds: a, described outer magnetic action body towards the surface of interior magnetic action body by about two magnetic pole strengths be combined into, one side of described housing respective channel end is provided with draw-in groove, outer magnetic action body is connected on the housing by draw-in groove, constitutes the slidingtype detent mechanism of outer magnetic action body with this.Two bracing frames are extended at the two ends, the left and right sides of one side of b, described housing respective channel end downwards, the forward and backward surface of described outer magnetic action body is respectively two magnetic pole strengths, its middle part wears and is fixed with a trip shaft, this trip shaft two ends switching is fixed on two bracing frames, constitutes the convertible detent mechanism of outer magnetic action body with this.End in the two ends, the left and right sides of one side of c, described housing respective channel end extends a rotating shaft downwards, described outer magnetic action body towards the surface of interior magnetic action body by about two magnetic pole strengths be combined into, its middle part is hinged in the rotating shaft, constitutes the rotary type detent mechanism of outer magnetic action body with this.
3, in the such scheme, the magnetic action body is a magnetic ball in described, be wrapped with the copper sheet layer at the magnetic ball, this copper sheet layer is the movable contact body, it is right that the two ends of described passage respectively are provided with a stationary contact body, described four stationary contact bodies are cross section copper post triangular in shape, their vertically symmetrical in twos both ends that are stuck in passage; Both sides corresponding to the passage two ends outside annular seal space respectively are provided with magnetic action body outside, this two magnetic actions body is permanent magnet, this two permanent magnet successively acts on the magnetic ball, and driving the copper sheet layer with this, to connect the stationary contact body at passage two ends by turns right, constitutes the ganged switch structure with this.
4, in the such scheme, described movable contact body is an iron ball, and as outer magnetic action body, it is right that the two ends of described passage respectively are provided with a stationary contact body simultaneously for this iron ball, described four stationary contact bodies are cross section copper post triangular in shape, their vertically symmetrical in twos both ends that are stuck in passage; Both sides corresponding to the passage two ends outside annular seal space respectively are provided with magnetic action body outside, this two magnetic actions body is permanent magnet, this two permanent magnet successively acts on iron ball, and driving iron ball with this, to connect the stationary contact body at passage two ends by turns right, constitutes the ganged switch structure with this.
5, in the such scheme, described " stationary contact body " is meant sheet, column, thread electric conductor, preferably adopts copper sheet, copper post or copper wire; Institute's " movable contact body " can be sheet, spherical, block electric conductor, preferably adopts copper sheet.
6, in the such scheme, described housing can adopt bakelite, plastic or other material to make.
The utility model design principle is: the utility model has designed the cavity of a sealing, in seal chamber, be provided with moving, stationary contact body opening-closing structure, on the movable contact body, fix magnetic action body in, or magnetic action body (iron) in itself, magnetic action body outside one is set outside cavity at least, this magnetic action body is a permanent magnet, utilize permanent magnet and permanent magnet, or the magneticaction principle that attracts each other between permanent magnet and magnetic conductor or repel, magnetic action body and movable contact body action in the cavity are handled in the motion of magnetic action body in addition, with this switch operating state, finish the on-off function of switch.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model has adopted a hermetic cavity, this cavity fully wraps up dynamic and static contact opening-closing structure, outside cavity, handle the movable contact body action during action with magnetic force, the electric spark that dynamic and static contact folding moment the produces inside cavity that is wrapped fully, spark is not outer to be spattered, and is applicable to the inflammable and explosive occasion of anti-electric spark requirement fully.
2, same because the utility model has adopted a hermetic cavity, and this cavity fully wraps up dynamic and static contact opening-closing structure, the energising part is fully airtight, can in wet environment, use, even be soaked in fully in the liquid, can short circuit yet, can keep working properly.
3, because the utility model adopts two magnetic sheets to handle, and structure is very simple, volume is little, and is with low cost.
4, because the utility model has adopted a hermetic cavity, and this cavity fully wraps up dynamic and static contact opening-closing structure, and is safe, and anticorrosive property is good, long service life is applicable to the various occasions that safety requirements is arranged.
Description of drawings
Accompanying drawing 1 is the structural representation of embodiment one;
Accompanying drawing 2 is the structural representation of embodiment two;
Accompanying drawing 3 is the structural representation of embodiment three;
Accompanying drawing 4 is the structural representation of embodiment four.
In the above accompanying drawing: 1, annular seal space; 2, stationary contact body; 3, movable contact body; 4, interior magnetic action body; 5, outer magnetic action body; 6, draw-in groove; 7, bracing frame; 8, trip shaft; 9, rotating shaft; 10, iron ball.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1, a kind of sealingly secure switch comprises an annular seal space 1 that is made of housing seal, vertically be provided with a passage in the annular seal space 1, one end of passage is arranged at intervals with two stationary contact bodies, 2, two stationary contact bodies 2 and constitutes 2 pairs of stationary contact bodies, from 2 pairs of links of drawing switch of stationary contact body; Corresponding two stationary contact bodies 2 laterally are provided with a movable contact body 3 in passage, this movable contact body 3 contacts above-mentioned two stationary contact bodies 2 simultaneously at an end of passage, constitute an operating state with this, this movable contact body 3 separates with above-mentioned two stationary contact bodies 2 at the passage other end, constitutes another operating state with this; Movable contact body 3 is movable contact spring (preferably adopting copper sheet), and its contact-making surface is towards 2 pairs of stationary contact bodies, and it is fixedly connected with interior magnetic action body 4 behind, should interior magnetic action body 4 be a permanent magnetism sheet, its forward and backward surface be respectively two magnetic pole strengths, as shown in Figure 1, front surface is the S utmost point, and the rear surface is the N utmost point; Magnetic action body 5 outside outside annular seal space 1, being provided with corresponding to an end of passage, outer magnetic action body 5 is parallel to movable contact body 3, and it specifically also is a permanent magnetism sheet, this permanent magnetism sheet towards the surface of movable contact body 3 by about two magnetic pole strengths be combined into, as shown in Figure 1, left-hand face is the N utmost point, and right lateral surface is the S utmost point; One side of described housing respective channel end is provided with draw-in groove 6, is connected on the housing by draw-in groove 6 as the permanent magnetism sheet of outer magnetic action body 5; Magnetic action body 4 horizontally slips in the operation, in making between the magnetic pole strength of magnetic pole strength and the outer magnetic action body 5 of magnetic action body 4 with magnetic interaction, driving movable contact body 3 mobile switch operating state between the passage two ends.Above-mentioned stationary contact body 3 is specially the copper contact chip.
The course of work is: when as outside the permanent magnetism sheet position of magnetic action body 5 as shown in Figure 1 the time, in the conduct of the N utmost point magnetic pole strength on its right side in annular seal space 1 during the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4, two permanent magnetism sheets are inhaled mutually, make movable contact spring move to the front end of passage, and it is right to connect the stationary contact body; When operation as outside the permanent magnetism sheet of magnetic action body 5 slide to the right (shown in the figure upward arrow), the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4 in the conduct of the S utmost point magnetic pole strength that makes its left side in the annular seal space 1, two permanent magnetism sheets repel mutually, promote to move (shown in the figure upward arrow) behind the movable contact spring, move to the rear end of passage, it is right to disconnect the stationary contact body.
Embodiment two: shown in accompanying drawing 2, a kind of sealingly secure switch, comprise an annular seal space 1 that constitutes by housing seal, be with the difference of embodiment one: outer magnetic action body 5 also is a permanent magnetism sheet, the forward and backward surface of its permanent magnetism sheet is respectively two magnetic pole strengths, as shown in Figure 2, its front surface is the S utmost point, and the rear surface is the N utmost point; About the middle part of this permanent magnetism sheet, wear and be fixed with a trip shaft 8, two bracing frames 7 are extended at the two ends, the left and right sides of the front side of housing respective channel end downwards, the switching of trip shaft 8 two ends is fixed on two bracing frames 7, will be fixed on the shell with the activity of upset locate mode as the permanent magnetism sheet of outer magnetic action body 5 with this.Above-mentioned stationary contact body 3 is specially copper wire bundle.
The course of work is: when as outside the permanent magnetism sheet position of magnetic action body 5 as shown in Figure 2 the time, in the conduct of the N utmost point magnetic pole strength of its rear side in annular seal space 1 during the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4, two permanent magnetism sheets are inhaled mutually, make movable contact spring move to the front end of passage, and it is right to connect the stationary contact body; 180 ° (shown in figure upward arrow) of permanent magnetism sheet upset of magnetic action body 5 outside the operation conduct, the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4 in the conduct of the S utmost point magnetic pole strength that makes its front side in the annular seal space 1, two permanent magnetism sheets repel mutually, promote to move (shown in the figure upward arrow) behind the movable contact spring, move to the rear end of passage, it is right to disconnect the stationary contact body.
Other repeats no more here with embodiment one.
Embodiment three: shown in accompanying drawing 3, a kind of sealingly secure switch, comprise an annular seal space 1 that constitutes by housing seal, be with the difference of embodiment one: outer magnetic action body 5 also is a permanent magnetism sheet, the front side left end of housing respective channel end extends a rotating shaft 9 downwards, permanent magnetism sheet as outer magnetic action body 5 is hinged in the rotating shaft 9 with the middle part, will be fixed on the shell with the activity of rotational positioning mode as the permanent magnetism sheet of outer magnetic action body 5 with this.Above-mentioned stationary contact body 3 is specially copper bar.
The course of work is: when as outside the permanent magnetism sheet position of magnetic action body 5 as shown in Figure 3 the time, in the conduct of the N utmost point magnetic pole strength on its right side in annular seal space 1 during the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4, two permanent magnetism sheets are inhaled mutually, make movable contact spring move to the front end of passage, and it is right to connect the stationary contact body; When operation as outside the permanent magnetism sheet of magnetic action body 5 sway 180 ° (shown in figure upward arrows), the S utmost point magnetic pole strength of the permanent magnetism sheet of magnetic action body 4 in the conduct of the S utmost point magnetic pole strength that makes its left side in the annular seal space 1, two permanent magnetism sheets repel mutually, promote to move (shown in the figure upward arrow) behind the movable contact spring, move to the rear end of passage, it is right to disconnect the stationary contact body.
Other repeats no more here with embodiment one.
Embodiment four: shown in accompanying drawing 4, a kind of sealingly secure switch, comprise an annular seal space 1 that constitutes by housing seal, be with the difference of embodiment one: described movable contact body is an iron ball 10, this iron ball 10 is interior magnetic action body, the two ends of described passage respectively are provided with 2 pairs of stationary contact bodies, and described four stationary contact bodies 2 are cross section copper post triangular in shape, their vertically symmetrical in twos both ends that are stuck in passage; Both sides corresponding to the passage two ends outside annular seal space 1 respectively are provided with magnetic action body 5 outside, and this two outer magnetic action body 5 is permanent magnet; When annular seal space 1 (in figure shown in the arrow) with respect to two outside magnetic action body 5 when moving, this two outer magnetic action body 5 successively with magneticaction in iron ball 10, drive 2 pairs of the stationary contact bodies that iron ball 10 is connected the passage two ends by turns with this, constitute the ganged switch structure with this.Other repeats no more here with embodiment one, and the course of work slightly.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (8)
1, a kind of sealingly secure switch, it is characterized in that: comprise an annular seal space [1] that constitutes by housing seal, annular seal space is provided with a passage in [1], at least one end is arranged at intervals with two stationary contact bodies [2] in the two ends of passage, it is right that two stationary contact bodies [2] constitute stationary contact bodies [2], from stationary contact body [2] to drawing the link of switch; Corresponding two stationary contact bodies [2] are provided with a movable contact body [3] in passage, this movable contact body [3] contacts above-mentioned two stationary contact bodies [2] simultaneously at an end of passage, constitute an operating state with this, this movable contact body [3] separates with above-mentioned two stationary contact bodies [2] at the passage other end, constitutes another operating state with this; Movable contact body [3] this as magnetic action body [4] in being fixed with on interior magnetic action body [4] or its, magnetic action body [5] outside outside annular seal space [1], being provided with corresponding to an end of passage, in interior magnetic action body [4] and the outer magnetic action body [5], one is permanent magnet, another is a magnetic conductor, or two be permanent magnet, between interior magnetic action body [4] and outer magnetic action body [5] with magnetic interaction, drive movable contact body [3] and between the passage two ends, move the switch operating state.
2, sealingly secure switch according to claim 1 is characterized in that described: described movable contact body [3] is a movable contact spring, and it is in being located at passage, and its contact-making surface is right towards stationary contact body [2]; Magnetic action body [4] is a permanent magnetism sheet in described, and its forward and backward surface is respectively two magnetic pole strengths, fixedlys connected with the movable contact spring back side with the one magnetic pole strength; Outer magnetic action body [5] also is a permanent magnetism sheet, it is movably arranged on outside the annular seal space [1], parallel with interior magnetic action body [4], it attract with its variation towards the magnetic pole strength of interior magnetic action body [4] or repel in magnetic action body [4], drive movable contact spring action with this.
3, sealingly secure switch according to claim 2, it is characterized in that: described outer magnetic action body [5] towards the surface of interior magnetic action body [4] by about two magnetic pole strengths be combined into, one side of described housing respective channel end is provided with draw-in groove [6], outer magnetic action body [5] is connected on the housing by draw-in groove [6], constitutes the slidingtype detent mechanism of outer magnetic action body [5] with this.
4, sealingly secure switch according to claim 2, it is characterized in that: two bracing frames [7] are extended at the two ends, the left and right sides of a side of described housing respective channel end downwards, the forward and backward surface of described outer magnetic action body [5] is respectively two magnetic pole strengths, its middle part wears and is fixed with a trip shaft [8], the switching of this trip shaft [8] two ends is fixed on two bracing frames [7], constitutes the convertible detent mechanism of outer magnetic action body [5] with this.
5, sealingly secure switch according to claim 2, it is characterized in that: the end in the two ends, the left and right sides of a side of described housing respective channel end extends a rotating shaft [9] downwards, described outer magnetic action body [5] towards the surface of interior magnetic action body [4] by about two magnetic pole strengths be combined into, its middle part is hinged in the rotating shaft [9], constitutes the rotary type detent mechanism of outer magnetic action body [5] with this.
6, sealingly secure switch according to claim 1, it is characterized in that: magnetic action body [4] is a magnetic ball in described, be wrapped with the copper sheet layer at the magnetic ball, this copper sheet layer is movable contact body [3], it is right that the two ends of described passage respectively are provided with a stationary contact body [2], described four stationary contact bodies [2] are cross section copper post triangular in shape, their vertically symmetrical in twos both ends that are stuck in passage; Both sides corresponding to the passage two ends outside annular seal space [1] respectively are provided with magnetic action body [5] outside, this two outer magnetic action body [5] is permanent magnet, this two permanent magnet successively acts on the magnetic ball, and driving the copper sheet layer with this, to connect the stationary contact body [2] at passage two ends by turns right, constitutes the ganged switch structure with this.
7, sealingly secure switch according to claim 1, it is characterized in that: described movable contact body [3] is an iron ball [10], this iron ball [10] is simultaneously as outer magnetic action body [5], it is right that the two ends of described passage respectively are provided with a stationary contact body [2], described four stationary contact bodies [2] are cross section copper post triangular in shape, their vertically symmetrical in twos both ends that are stuck in passage; Both sides corresponding to the passage two ends outside annular seal space [1] respectively are provided with magnetic action body [5] outside, this two outer magnetic action body [5] is permanent magnet, this two permanent magnet successively acts on iron ball [10], driving iron ball [10] with this, to connect the stationary contact body [2] at passage two ends by turns right, constitutes the ganged switch structure with this.
8, sealingly secure switch according to claim 1 is characterized in that: described stationary contact body [2] is copper sheet, copper post or copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074315 CN2817044Y (en) | 2005-08-05 | 2005-08-05 | Sealed safety switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074315 CN2817044Y (en) | 2005-08-05 | 2005-08-05 | Sealed safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2817044Y true CN2817044Y (en) | 2006-09-13 |
Family
ID=36996854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074315 Expired - Fee Related CN2817044Y (en) | 2005-08-05 | 2005-08-05 | Sealed safety switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2817044Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170643A (en) * | 2017-07-18 | 2017-09-15 | 唐荣 | Waterproof power switch |
| CN110422631A (en) * | 2019-08-26 | 2019-11-08 | 苏州佳世达电通有限公司 | Magnetic holding means |
| CN110876593A (en) * | 2019-12-10 | 2020-03-13 | 安徽冠东科技有限公司 | Steam mop capable of discharging steam from single side by utilizing magnetism |
-
2005
- 2005-08-05 CN CN 200520074315 patent/CN2817044Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170643A (en) * | 2017-07-18 | 2017-09-15 | 唐荣 | Waterproof power switch |
| CN110422631A (en) * | 2019-08-26 | 2019-11-08 | 苏州佳世达电通有限公司 | Magnetic holding means |
| CN110422631B (en) * | 2019-08-26 | 2021-06-08 | 苏州佳世达电通有限公司 | Magnetic clamping device |
| CN110876593A (en) * | 2019-12-10 | 2020-03-13 | 安徽冠东科技有限公司 | Steam mop capable of discharging steam from single side by utilizing magnetism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |