CN2099376U - Non-contact memory magnetic proximity switch - Google Patents
Non-contact memory magnetic proximity switch Download PDFInfo
- Publication number
- CN2099376U CN2099376U CN 91216426 CN91216426U CN2099376U CN 2099376 U CN2099376 U CN 2099376U CN 91216426 CN91216426 CN 91216426 CN 91216426 U CN91216426 U CN 91216426U CN 2099376 U CN2099376 U CN 2099376U
- Authority
- CN
- China
- Prior art keywords
- switch
- magnet steel
- reed capsule
- quiet
- sensitive surface
- 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.)
- Granted
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 239000002775 capsule Substances 0.000 claims description 34
- 210000000003 hoof Anatomy 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model relates to a switch operated by the change of magnetic field, which is a sensor used for position detection in automatic systems such as mines, machinery, light industry, metallurgy, chemical industry and textile, and mainly comprises a reed pipe and a horseshoe permanent magnet and additional control magnetic steel. The utility model has the advantages of normal open, normal close with directional memory, large control distance of control magnet steel, no contact, reliable operation, etc.
Description
The utility model relates to a kind of switch of the change operation by magnetic field, particularly a kind of contactless memory magnetic approach switch of being made up of quiet switch that contains reed capsule and control magnet steel.
Magnetic approach switch is a kind of mine that is used for, machinery, light industry, metallurgical, chemical industry, in the automated systems such as weaving as the transducer of position probing, at present, its primary structure of magnetic approach switch is made up of with the control magnet steel quiet the switch that contains reed capsule, its quiet switch is fixedly mounted on required detection position, the control magnet steel is installed in the movable body outside, this switch ordinary circumstance all is in normally open, when having only moving part control magnet steel by required detection position, after reed capsule the two poles of the earth sensitive surface is controlled the magnetization at magnet steel the two poles of the earth, the just adhesive of reed capsule two contacts, its weak point is that this switch is often opened, do not have the directivity memory when normally closed, reed capsule two contacts disconnect moment and are prone to and tremble, functional reliability is poor, and control magnet steel command range is short.
The purpose of this utility model is that design is a kind ofly often opened, the memory of normally closed band directivity, the contactless memory magnetic approach switch that the magnet steel command range is long.
For achieving the above object, the utility model is achieved in that establishes a shape of a hoof permanent magnet in quiet switch, and these magnet the two poles of the earth parallel corresponding with reed capsule the two poles of the earth sensitive surface respectively; Reed capsule opposing parallel in control magnet steel one pole and quiet the switch.Quiet switch is fixedly mounted on required detection position, the control magnet steel is installed in the movable body outside of a bit of distance more than quiet switch center, owing in quiet switch, be provided with shape of a hoof permanent magnet, reed capsule the two poles of the earth sensitive surface in quiet switch is magnetized by shape of a hoof permanent magnet the two poles of the earth in advance, the two poles of the earth sensitive surface magnetic intensity is in undersaturated condition, so not only increase control magnet steel command range, and overcome the jitter that is prone to when reed capsule two contacts disconnect.When controlling magnet steel along with movable body moves upward, in a bit of distance more than quiet switch center, control magnet steel monopolar operation is magnetized in the face of the upper end sensitive surface of the reed capsule in quiet the switch, if control magnet steel monopolar operation face polarity and upper end sensitive surface in advance the polarity of being with identical, then upper end sensitive surface magnetic intensity strengthens, the two poles of the earth sensitive surface magnetic intensity is in saturation condition, reed capsule two contact adhesives, if the control magnet steel is along with movable body continues to move upward, then reed capsule two contacts continue adhesive, and quiet switch is in normally off; When the control magnet steel along with movable body moves downward after by required detection position, then just opposite with the situation of moving upward, quiet switch is in normally open.
Owing to adopted above-mentioned solution, the utlity model has following advantage:
1. often open, normally closed band directivity memory.
2. control magnet steel command range is long and contactless.
3. overcome the jitter that is prone to when reed capsule two contacts disconnect.
4. simple in structure.
Below in conjunction with drawings and Examples the utility model is done step detailed description.
Fig. 1 is the utility model embodiment front view.
As shown in Figure 1, the utility model is made up of quiet switch (1), control magnet steel (7), and a wherein quiet switch (1) mainly is made of base (2), shell (6), shape of a hoof permanent magnet (4), reed capsule (5), wiring board (3).On wiring board (3), reed capsule (5) is welded on the wiring board (3) shape of a hoof permanent magnet (4) with adhering with epoxy resin, and wiring board (3) is fixed on the base (2) with epoxy resin.Shape of a hoof permanent magnet (4) N, the S utmost point parallel correspondingly with reed capsule (5) upper and lower end sensitive surface respectively, and control magnet steel (7) the N utmost point parallels corresponding with reed capsule (5).Quiet switch (1) is fixedly mounted on required detection position, control magnet steel (7) is installed in from quiet switch (1) outside a bit of movable body at the center more than, owing in quiet switch (1), be provided with a shape of a hoof permanent magnet (4), reed capsule (5) the two poles of the earth sensitive surface in quiet the switch (1) is in advance respectively by shape of a hoof permanent magnet (4) N, the magnetization of S the two poles of the earth, upper end sensitive surface polarity is the N utmost point, the lower end sensitive surface is the S utmost point, the two poles of the earth sensitive surface magnetic intensity is in undersaturated condition, has so just increased the command range of control magnet steel (7).When controlling magnet steel (7) when moving upward along with movable body, from a bit of distance in the above center of quiet switch (1), control magnet steel (7) N utmost point working face magnetizes the induction of the upper end of the reed capsule (5) in quiet the switch (1), then reed capsule (5) the upper end sensitive surface magnetic intensity with control magnet steel N utmost point identical polar strengthens, reed capsule (5) the two poles of the earth sensitive surface magnetic intensity in quiet the switch (1) is in saturation condition, reed capsule (5) two contact adhesives, if control magnet steel (7) is when continuing to move upward along with movable body, reed capsule (5) the two poles of the earth sensitive surface magnetic intensity keeps saturation condition, reed capsule (5) two contacts continue adhesive, in control magnet steel (7) moved upward process along with movable body, this switch just was in normally off; After control magnet steel (7) passes through the detection position, when moving downward along with movable body, control magnet steel (7) magnetizes reed capsule (5) lower end sensitive surface, because reed capsule (5) lower end sensitive surface is with the polarity S utmost point opposite with control magnet steel N utmost point polarity in advance, make lower end sensitive surface magnetic intensity weaken, when being magnetized into to a certain degree, the polarity of lower end sensitive surface becomes identical with upper end sensitive surface polarity, reed capsule two contacts disconnect, along with movable body moves downward in the process, this switch just is in normally open at control magnet steel (7).Because reed capsule (5) two contacts disconnect moment, reed capsule (5) the two poles of the earth sensitive surface magnetic intensity is in undersaturated condition, has overcome reed capsule (5) two contacts and has disconnected the jitter that moment is prone to, and brings reliability to work.
Claims (3)
1, a kind of contactless memory magnetic approach switch of forming by quiet switch that contains reed capsule and control magnet steel, it is characterized in that establishing in quiet switch (1) shape of a hoof permanent magnet (4), this magnet (4) the two poles of the earth parallel corresponding with reed capsule (5) the two poles of the earth sensitive surface respectively; The one pole of control magnet steel (7) and reed capsule (5) opposing parallel in quiet the switch (1).
2, contactless memory magnetic approach switch according to claim 1 is characterized in that shape of a hoof permanent magnet (4) N, the S utmost point are corresponding with reed capsule (5) upper and lower end sensitive surface respectively.
3, contactless memory magnetic approach switch according to claim 1, it is characterized in that controlling magnet steel (7) monopolar operation face is the N utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216426 CN2099376U (en) | 1991-06-12 | 1991-06-12 | Non-contact memory magnetic proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216426 CN2099376U (en) | 1991-06-12 | 1991-06-12 | Non-contact memory magnetic proximity switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2099376U true CN2099376U (en) | 1992-03-18 |
Family
ID=4924334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91216426 Granted CN2099376U (en) | 1991-06-12 | 1991-06-12 | Non-contact memory magnetic proximity switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2099376U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745880A (en) * | 2014-01-02 | 2014-04-23 | 山东省科学院海洋仪器仪表研究所 | Liquid level detection switch system |
| CN105144583A (en) * | 2013-04-19 | 2015-12-09 | Trw车辆电气与零件有限公司 | Proximity sensor of assembly |
| 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 |
-
1991
- 1991-06-12 CN CN 91216426 patent/CN2099376U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144583A (en) * | 2013-04-19 | 2015-12-09 | Trw车辆电气与零件有限公司 | Proximity sensor of assembly |
| CN105144583B (en) * | 2013-04-19 | 2018-12-14 | Trw车辆电气与零件有限公司 | The proximity sensor device of construction package |
| US10234588B2 (en) | 2013-04-19 | 2019-03-19 | Trw Automotive Electronics & Components Gmbh | Magnetic proximity sensor |
| CN103745880A (en) * | 2014-01-02 | 2014-04-23 | 山东省科学院海洋仪器仪表研究所 | Liquid level detection switch system |
| CN103745880B (en) * | 2014-01-02 | 2015-12-02 | 山东省科学院海洋仪器仪表研究所 | A kind of liquid level detection switch system |
| 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |