CN203760376U - Magnetic proximity switch having directional memory effect - Google Patents
Magnetic proximity switch having directional memory effect Download PDFInfo
- Publication number
- CN203760376U CN203760376U CN201420001195.7U CN201420001195U CN203760376U CN 203760376 U CN203760376 U CN 203760376U CN 201420001195 U CN201420001195 U CN 201420001195U CN 203760376 U CN203760376 U CN 203760376U
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- CN
- China
- Prior art keywords
- magnetic
- switch
- reed switch
- magnetic reed
- memory effect
- 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.)
- Expired - Fee Related
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Abstract
A magnetic proximity switch having a directional memory effect has directional memory and substantially reduced cost, and is smart in size and convenient to use. The technical scheme is that the magnetic proximity switch is characterized by including a housing (1), a rectangular permanent magnet (5), a magnetic reed switch (4) and a state indictor light (3), wherein the rectangular permanent magnet (5), the magnetic reed switch (4) and the state indictor light (3) are all disposed in the housing (1); a side face of the rectangular permanent magnet (5) and two-stage induction surfaces of the magnetic reed switch (4) are disposed in a parallel manner; and the magnetic reed switch (4) and the state indictor light (3) are connected together.
Description
Technical field
The utility model belongs to magnetic approach switch field, especially a kind of have direction memory, volume is small and exquisite, cost reduces greatly, the magnetic approach switch with direction memory effect easy to use.Can be used in the systems such as general control systems, factory system control, operation control, liquid level control, as the transducer of position probing, being applicable to simplify the magnetic approach switch with state memorization of sequence circuit.
Background technology
The feature such as approach switch has that long service life, reliable operation, repetitive positioning accuracy are high, machinery-free wearing and tearing, no-spark, noiselessness, vibration resistance are strong.So far, the application of approach switch is increasingly extensive, and the speed of the development of himself and innovation is also extremely rapid.The magnetic approach switch with direction memory effect can be simplified control logic, the in the situation that of system power failure, still can remember the direction of object of which movement.
The magnetic approach switch with direction memory effect on market is all by establish a shape of a hoof permanent magnet in quiet switch now, then at the place, the two poles of the earth of shape of a hoof permanent magnet, placing a tongue tube realizes, volume of switch is large, cost is high, and all there is no direction of action indication, limited in a lot of applications, cause at present a lot of control system all to adopt with the lower common magnetic approach switch of price in the position probing that has direction to require, by upper program, realize direction and detect, make upper program more numerous and diverse.
Utility model content
Consider the problems referred to above, the purpose of this utility model be to provide a kind of have direction memory, volume is small and exquisite, cost reduces greatly, the magnetic approach switch with direction memory effect easy to use.
The purpose of this utility model is achieved through the following technical solutions.
A kind of magnetic approach switch with direction memory effect, it is characterized in that being formed by housing (1), rectangular permanent magnets (5), magnetic reed switch (4) and status indicator lamp (3), wherein, described rectangular permanent magnets (5), magnetic reed switch (4) and status indicator lamp (3) are all arranged in housing (1), the parallel placement of two-stage sensitive surface of the side of described rectangular permanent magnets (5) and magnetic reed switch (4), described magnetic reed switch (4) is connected with status indicator lamp (3).
Described magnetic reed switch (4) and status indicator lamp (3) are arranged on signal interface circuit plate (2).
At housing (1) inner chamber, charge epoxy resins insulation material.
Power supply can be with alternating current or direct current.
Effect of the present utility model is: a kind of magnetic approach switch with direction memory effect, its spy is comprised of housing, rectangular permanent magnets, magnetic reed switch and status indicator lamp, the parallel placement of two-stage sensitive surface of the side of described rectangular permanent magnets and magnetic reed switch, magnetic reed switch is connected with status indicator lamp.
During actual use, the sensitive surface opposing parallel of the rectangular permanent magnets in external control magnet one pole and approach switch and magnetic reed switch.Approach switch is fixed on detection position as requested, and the movement locus of external control magnet should meet the indication of quiet switch, detects recently distance and meets quiet switch motion requirement.Approach switch is arranged on detection position, and motion magnet is arranged in moving object.When motion permanent magnet from left to right passes through switch, switch motion is closed, and when motion permanent magnet continues to move right, switch is kept closed; When motion permanent magnet passes through switch from right to left, switch disconnects, and when motion permanent magnet continues to left movement, switch remains open state, has motion state direction memory effect.There is direction memory, volume feature small and exquisite, with low cost, easy to use.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is used view;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the schematic diagram of movements of magnetic reed switch in Fig. 1.
Embodiment
In Fig. 1, a kind of magnetic approach switch with direction memory effect, by housing 1, rectangular permanent magnets 5, magnetic reed switch 4 and status indicator lamp 3, formed, wherein, rectangular permanent magnets 5, magnetic reed switch 4 and status indicator lamp 3 are all arranged in housing 1, the parallel placement of two-stage sensitive surface of the side of rectangular permanent magnets 5 and magnetic reed switch 4, magnetic reed switch 4 is connected with status indicator lamp 3.
Magnetic reed switch 4 and status indicator lamp 3 are arranged on signal interface circuit plate 2, at housing 1 inner chamber, charge epoxy resins insulation material.Power supply can be with alternating current or direct current.
In Fig. 2, during actual use, approach switch and controlling magnet 6 are used in conjunction with, and the magnetic red sheet of the magnetic reed switch in approach switch is magnetized by rectangular permanent magnets in advance, and magnetic red sheet sensitive surface magnetic field intensity, in undersaturated condition, does not reach attracting state.When controlling magnet moves from left to right along with direction indication, in distance, there is a bit of distance in direction memory effect magnetic approach switch center, controlling magnet monopolar operation is magnetized in the face of the near-end magnetic red sheet sensitive surface of the magnetic reed switch in magnetic approach switch, now controlling magnet monopolar operation face polarity and near-end sensitive surface in advance the polarity of being with identical, near-end sensitive surface magnetic field intensity strengthens, the two poles of the earth sensitive surface magnetic field intensity is when saturation condition, magnetic reed switch two contact adhesives, quiet switch is in normally off, controlling magnet continues to move right along magnetic approach switch direction indication, behind quiet switch center, controlling magnet monopolar operation face polarity is contrary with sensitive surface polarity, sensitive surface magnetic field intensity weakens, to start to weaken from magnetic saturation state, slowly be transitioned into undersaturated condition, until controlling magnet is away from quiet switch, when controlling magnet is ignored on the sensitive surface magnetization impact of magnetic reed switch, magnetic reed switch is under the magnetization of internal magnet, still keep attracting state.
When controlling magnet moves from right to left, due to controlling magnet unipolarity working face polarity and sensitive surface in advance the polarity of being with contrary, sensitive surface magnetic field intensity weakens, while arriving certain position, magnetic reed switch two contacts disconnect, quiet switch is in normally open, if controlling porcelain iron continues to move along the opposite direction of magnetic approach switch indication, behind quiet switch center, controlling magnet monopolar operation face polarity is identical with sensitive surface polarity, sensitive surface magnetic field intensity strengthens, to start to strengthen from off-state, slowly be transitioned into undersaturated condition, until controlling magnet is away from quiet switch, when controlling magnet is ignored on the sensitive surface magnetization impact of magnetic reed switch, magnetic reed switch is under the magnetization of internal magnet, still keep disconnecting (referring to Fig. 3 under unsaturated state, Fig. 4).
Claims (4)
1. a magnetic approach switch with direction memory effect, it is characterized in that being formed by housing (1), rectangular permanent magnets (5), magnetic reed switch (4) and status indicator lamp (3), wherein, described rectangular permanent magnets (5), magnetic reed switch (4) and status indicator lamp (3) are all arranged in housing (1), the parallel placement of two-stage sensitive surface of the side of described rectangular permanent magnets (5) and magnetic reed switch (4), described magnetic reed switch (4) is connected with status indicator lamp (3).
2. the magnetic approach switch with direction memory effect according to claim 1, is characterized in that described magnetic reed switch (4) and status indicator lamp (3) are arranged on signal interface circuit plate (2).
3. the magnetic approach switch with direction memory effect according to claim 1 and 2, is characterized in that charging epoxy resins insulation material at housing (1) inner chamber.
4. the magnetic approach switch with direction memory effect according to claim 1 and 2, is characterized in that power supply can be with alternating current or direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001195.7U CN203760376U (en) | 2014-01-02 | 2014-01-02 | Magnetic proximity switch having directional memory effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001195.7U CN203760376U (en) | 2014-01-02 | 2014-01-02 | Magnetic proximity switch having directional memory effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760376U true CN203760376U (en) | 2014-08-06 |
Family
ID=51255621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420001195.7U Expired - Fee Related CN203760376U (en) | 2014-01-02 | 2014-01-02 | Magnetic proximity switch having directional memory effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573349A (en) * | 2015-12-15 | 2016-05-11 | 华北电力科学研究院有限责任公司 | Limiting sensor and limiting device |
| 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 |
-
2014
- 2014-01-02 CN CN201420001195.7U patent/CN203760376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573349A (en) * | 2015-12-15 | 2016-05-11 | 华北电力科学研究院有限责任公司 | Limiting sensor and limiting device |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150102 |
|
| EXPY | Termination of patent right or utility model |