CN206919822U - A kind of position switch for being resistant to magnetic interference - Google Patents
A kind of position switch for being resistant to magnetic interference Download PDFInfo
- Publication number
- CN206919822U CN206919822U CN201720789983.0U CN201720789983U CN206919822U CN 206919822 U CN206919822 U CN 206919822U CN 201720789983 U CN201720789983 U CN 201720789983U CN 206919822 U CN206919822 U CN 206919822U
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- China
- Prior art keywords
- shell
- printed board
- board assembly
- position switch
- resistant
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- 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.)
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Abstract
A kind of position switch for being resistant to magnetic interference is the utility model is related to, including wire, shell, printed board assembly, described printed board assembly are fixed in shell, and electronic component casting glue is filled between the shell and printed board assembly；The wire that one end is welded on printed board assembly is through shell and externally draws；The beneficial effects of the utility model are：With in light weight, simple in construction, easy to assembly, stable and reliable for performance, while there is the comprehensive mechanical performances such as splendid anti-vibrating and impact, shell protection grade, suitable for all kinds of cylinders under bad electromagnetic environment normal work.
Description
Technical field
The utility model belongs to position switch technical field, more particularly to a kind of position switch for being resistant to magnetic interference.
Background technology
With the development of electromechanical integration technology, the more and more extensive utilization of industrial control system, scientific and technical is continuous general
And electromagnetic interference is set to turn into the problem of increasing product needs to consider, it is necessary to which the position switch of anti-magnetic interference is future
Development and the inexorable trend of popularization.Current most of position switch can not all resist magnetic interference, and magnetic interference, which often occurs, to be caused
Equipment malfunction is made.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of the prior art, and provides a kind of position for being resistant to magnetic interference
Put switch.
The purpose of this utility model is completed by following technical solution, including wire, shell, printed board assembly,
Described printed board assembly is fixed in shell, and electronic component casting glue is filled between the shell and printed board assembly；One
The wire being welded on printed board assembly is held through shell and is externally drawn.
Preferably, single-chip microcomputer, diode and magnetic resistance are separately installed with described printed board assembly.
Preferably, the described material used by manufacturing shell that is used for is plastic material.
The beneficial effects of the utility model are：
1), the detection to cylinder moving position is realized using the mode of magnetic resistance induced field intensity, signal stabilization is reliable；
2) sensing of the magnetic resistance to magnetic field intensity, is identified using single-chip microcomputer, can effectively identify and be disturbed with armoured magnetic field, can be led to
Modification SCM program is crossed to adapt to the change of interference strength；
3) appropriate casting glue, is filled between shell and printed board assembly, thoroughly avoids external environment to printed board group
The damage of part, the life-span of extended position switch；
4) requirement that power supply end powers without positive-negative polarity, is realized using diode characteristic, power supply error-polarity connection not shadow
Ring position switch normal work.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Label in accompanying drawing is respectively：1st, wire；2nd, shell；3rd, electronic component casting glue；4th, printed board assembly.
Embodiment
Detailed introduction is done to the utility model below in conjunction with accompanying drawing：As shown in Figure 1, the utility model includes wire
1st, shell 2, printed board assembly 4, described printed board assembly 4 are fixed in shell 2, and between the shell 2 and printed board assembly 4
Filled with electronic component casting glue 3, damage of the external environment to printed board assembly 4 is thoroughly avoided, can be various severe
Reliably worked in environment, the life-span of extended position switch；The wire 1 that one end is welded on printed board assembly 4 passes through shell 2 simultaneously
Externally draw.
Single-chip microcomputer, diode and magnetic resistance are separately installed with described printed board assembly 4.Realized and supplied using diode characteristic
The requirement that electric power end is powered without positive-negative polarity, impact position does not switch normal work to power supply error-polarity connection；Printed board assembly 4 is adopted
With sensing of the single-chip microcomputer identification magnetic resistance to magnetic field intensity, printed board assembly 4 is using the interference of single-chip microcomputer identification magnetic field intensity, printing
Board component 4 uses the interference of single-chip microcomputer armoured magnetic field intensity.And using sensing of the magnetic resistance to magnetic field intensity, realize to cylinder moving
The detection of position.
The described material used by manufacturing shell 2 that is used for is plastic material；The weight of position switch is reduced, protects shell
Internal printed board assembly 4, the magnetic field signal of cylinder movement will not be shielded.
The utility model is not limited to above-mentioned embodiment, makees any change no matter being formed in its shape or material, all
It is to use structure design provided by the utility model, is all a kind of deformation of the present utility model, is considered as new in this practicality
Within type protection domain.
Claims (3)
1. a kind of position switch for being resistant to magnetic interference, including wire (1), shell (2), printed board assembly (4), its feature exist
In：Described printed board assembly (4) is fixed in shell (2), and filled with electricity between the shell (2) and printed board assembly (4)
Sub- part casting glue (3)；The wire (1) that one end is welded on printed board assembly (4) is through shell (2) and externally draws.
2. the position switch according to claim 1 for being resistant to magnetic interference, it is characterised in that：Described printed board assembly
(4) single-chip microcomputer, diode and magnetic resistance are separately installed with.
3. the position switch according to claim 1 for being resistant to magnetic interference, it is characterised in that：It is described to be used for manufacturing shell
(2) material is plastic material used by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789983.0U CN206919822U (en) | 2017-06-30 | 2017-06-30 | A kind of position switch for being resistant to magnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789983.0U CN206919822U (en) | 2017-06-30 | 2017-06-30 | A kind of position switch for being resistant to magnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206919822U true CN206919822U (en) | 2018-01-23 |
Family
ID=61334740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720789983.0U Active CN206919822U (en) | 2017-06-30 | 2017-06-30 | A kind of position switch for being resistant to magnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206919822U (en) |
-
2017
- 2017-06-30 CN CN201720789983.0U patent/CN206919822U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |