CN2178936Y - Anti-interference, non-contact momery switch - Google Patents
Anti-interference, non-contact momery switch Download PDFInfo
- Publication number
- CN2178936Y CN2178936Y CN 93245244 CN93245244U CN2178936Y CN 2178936 Y CN2178936 Y CN 2178936Y CN 93245244 CN93245244 CN 93245244 CN 93245244 U CN93245244 U CN 93245244U CN 2178936 Y CN2178936 Y CN 2178936Y
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- utility
- model
- contact
- interference
- switch
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Abstract
The utility model relates to an anti-interference and non-contact memory switch. A piece of external magnetic steel is fixed on a controlled component, two pieces of auxiliary magnetic steel are respectively sheathed and fixed on the two exposed ends of a reed pipe, the orientation of the magnetic pole polarity of the two pieces of auxiliary magnetic steel arranged in axial direction is the same. The opening and closing of the contact of the utility model is mainly determined by the direction of motion of the external magnetic steel. The utility model has the advantages of high stability, high reliability, convenient installation, convenient adjustment, strong anti-interference performance, and long service life. The utility model acts under magnetic force, overcoming the defect of contact disturbance when acting only with elastic force.
Description
The utility model relates to a kind of switch that is moved by the variation in magnetic field, is specifically related to a kind of anti-interference noncontact memory switch.
At present, be widely used near switch, still have shortcoming or deficiency but have now near switch, for example: the required distance to induction pieces and switch is tighter, and its application is limited to.Induction pieces and switch adopt to be installed vertically, sees Fig. 1, when induction pieces 2 is not in place, can not send out signal; Induction pieces 2 motions are excessive, can break induction pieces 2 or switch 1 again.Induction pieces and switch adopt radially installation, see Fig. 2, though can not damage parts like this, but induction pieces 2 moves not in place or displacement equal no signal when excessive, have only induction pieces 2 accurately to put in place and just can send signal, for motion the equipment of variation is arranged, this reliability of posting a letter near switch will be affected.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provides a kind of simple in structure, good stability, reliability height, installation, easy to adjust, good anti-vibration, the anti-interference noncontact memory switch of long service life.
The purpose of this utility model can reach by following measure:
A kind of anti-interference noncontact memory switch, comprise reed capsule (3), two auxiliary magnet steel (4), (6) and be fixed in outer steel (5) on the controlled part, its special character is, described two auxiliary magnet steel (4), (6) are set with on two exposed junctions that are fixed in reed capsule (3), and axially the pole polarity orientation of the auxiliary magnet steel (4) that is provided with and (6) is identical.
The accompanying drawing drawing is described as follows:
Fig. 1～2 are the structural representation of prior art two embodiment.
Fig. 3 is a principle assumption diagram of the present utility model.
Fig. 4 is the structural representation of the utility model embodiment.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 3 is a principle assumption diagram of the present utility model.The utility model is that two exposed junction suit bipolarities at reed capsule 3 are that the magnetic field of axial auxiliary magnet steel 4,6, two auxiliary magnet steel 4,6 is in the same way.If the polarity setting of outer steel 5 and auxiliary magnet steel 4,6 is as shown in Figure 3, then auxiliary magnet steel 4,6 make reed capsule 3 about two reeds 7,8 be respectively the N utmost point and the S utmost point.When outer steel 5 moves from left to right, and behind the 0-0 ' that crosses the centre line, because outer steel 5 magnetic force are stronger, make the right reed 8 of reed capsule 3 be geomagnetic into the N utmost point, at this moment, two reeds 7,8 that are all the N utmost point produce repulsion and disconnect; Outer steel 5 continues to move to right, away from after because reed has certain elastic force, auxiliary magnet steel 4,6 makes between magnetic field N-S that reed 7,8 forms not enough so that its adhesive of suction, two reeds keep disconnecting always.When outer steel 5 moves from right to left, and behind the 0-0 ' that crosses the centre line, because the intensity of the N pole field of left side reed 7 has been strengthened in the magnetic field of outer steel 5, two reeds 7,8 are closed under the suction of N-S interpolar.After two reeds, 7,8 closures, the magnetic line of force of two auxiliary magnet steel 4,6 constitutes the closed-loop path by two reeds 7,8, magnetic resistance is very little, even outer steel 5 continues to move to left, away from after, also the effect because of magnetic field is combined closely it, and the N-S interpolar suction of two reeds 7,8 is still greater than the elastic force of reed own, so two reeds remain closed and do not disconnect.
Fig. 4 is the structural representation of the utility model embodiment.Reed capsule 3 adopts tongue tube, wet reed pipe etc. all can, it is located in the insulation booth 11, auxiliary magnet steel 4,6 is set with in 3 liang of exposed junctions of reed capsule, the metal lead wire of two reeds 7,8 is drawn by the aperture of being located at insulation booth 11 1 ends, debugging finishes, and will assist magnet steel 4,6 to fix, and is with epoxy resin or silicon rubber etc. that intracavity space 12 fillings of insulation booth 11 are full, encapsulate, cover lid and get final product.Insulation booth 11 can adopt plastic casing or bakelite box etc., and the one side is provided with a sheet plate 13, and plate 13 both sides are provided with reinforcement 10, and plate 13 is provided with cylindrical void 9, and fixedly the screw of the utility model switch therefrom passes, and during installation, cylindrical void 9 can be used for adjusting the position of the switch.Outer steel 5 of the present utility model is fixed on the moni-tored plant component.
The utility model compared with prior art has following advantage:
1, the closing of contact, disconnection determine good stability, reliability height by the direction of motion of outer steel.
2, owing to be passive switch, it is all convenient to install, adjust.
3, contact double-layer seal, long service life need not safeguarded.
4, because of move good anti-vibration by magnetic force.
5, simple in structure, volume is little, and cost is low, and parts are not fragile.
Claims (1)
1, a kind of anti-interference noncontact memory switch, comprise reed capsule (3), two auxiliary magnet steel (4), (6) and be fixed in outer steel (5) on the controlled part, it is characterized in that: described two auxiliary magnet steel (4), (6) are set with on two exposed junctions that are fixed in reed capsule (3), and axially the pole polarity orientation of the auxiliary magnet steel (4) that is provided with and (6) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245244 CN2178936Y (en) | 1993-11-26 | 1993-11-26 | Anti-interference, non-contact momery switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245244 CN2178936Y (en) | 1993-11-26 | 1993-11-26 | Anti-interference, non-contact momery switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2178936Y true CN2178936Y (en) | 1994-10-05 |
Family
ID=33818242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93245244 Expired - Fee Related CN2178936Y (en) | 1993-11-26 | 1993-11-26 | Anti-interference, non-contact momery switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2178936Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767499A (en) * | 2019-10-30 | 2020-02-07 | 珠海格力智能装备有限公司 | Magnetic switch and liquid level measuring device |
-
1993
- 1993-11-26 CN CN 93245244 patent/CN2178936Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767499A (en) * | 2019-10-30 | 2020-02-07 | 珠海格力智能装备有限公司 | Magnetic switch and liquid level measuring device |
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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 |