CN208635706U - A kind of high pressure-resistant position switch sensor - Google Patents
A kind of high pressure-resistant position switch sensor Download PDFInfo
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- CN208635706U CN208635706U CN201821275848.5U CN201821275848U CN208635706U CN 208635706 U CN208635706 U CN 208635706U CN 201821275848 U CN201821275848 U CN 201821275848U CN 208635706 U CN208635706 U CN 208635706U
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- cavity
- aperture
- high pressure
- position switch
- radially along
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Abstract
A kind of high pressure-resistant position switch sensor, including shell, it is provided with circuit board and induction coil inside the shell, there is cavity one and cavity two in the shell, circuit board is located in cavity one, induction coil is located in cavity two, it is connected between cavity one and cavity two by aperture, the diameter of the aperture is less than or equal to 2mm, the induction coil is wrapped on coil rack, the coil rack be an oral area have radially along band round-ended cylinder, coil is wrapped on cylinder outer wall, radially along the diameter of diameter and cavity two match, radially along in cavity two, radially along above offering multiple hole for injecting glue, in hole for injecting glue, in the gap of cavity two, epoxy resin embedding adhesive is filled in aperture and in the gap of cavity one.This high pressure-resistant position switch sensor eliminates transition attachment base, is reduced the volume of product.
Description
Technical field
The utility model relates to switch sensor, in particular to a kind of high pressure-resistant position switch sensor belongs to sensing
Device technical field.
Background technique
High pressure-resistant position switch sensor is often used in hydraulic control system, which is produced by induction coil
Raw oscillator signal can cause oscillator signal to change when spool position variation, export switching value after circuit board conditioning amplification,
Realize the switching of output state, traditional high pressure-resistant position switch sensor uses structure shown in fig. 6, has in the shell
Cavity uses silica gel after mounting circuit boards and coil in cavity, and 15 show silica gel, in order to adapt to making at elevated pressures
With, need to connect transition attachment base on the shell, 16 show transition attachment base, and such oil pressure acts on transition attachment base,
High pressure will not be caused to destroy circuit board, 11 show hydraulic oil, although the high pressure-resistant position switch sensor of this structure
It can be used, but its structure is complex, volume is big after band transition attachment base, and portion is easily installed, in the limited field in certain spaces
Conjunction is not available.
Summary of the invention
The purpose of the utility model is to overcome the above problems existing for current high pressure-resistant position switch sensor, mention
For a kind of high pressure-resistant position switch sensor.
To realize the purpose of this utility model, using following technical solutions: a kind of high pressure-resistant position switch sensing
Device, including shell are provided with circuit board and induction coil inside the shell, have cavity one and cavity two, electricity in the shell
Road plate is located in cavity one, and induction coil is located in cavity two, is connected between cavity one and cavity two by aperture, and described is small
The diameter in hole is less than or equal to 2mm, and the induction coil is wrapped on coil rack, and the coil rack is that an oral area has
Radially along band round-ended cylinder, coil is wrapped on cylinder outer wall, radially along the diameter of diameter and cavity two match, radially along
In cavity two, radially along above offering multiple hole for injecting glue, in hole for injecting glue, in the gap of cavity two, in aperture and cavity
Epoxy resin embedding adhesive is filled in one gap；Further；The diameter of the aperture is less than or equal to 1.5mm；Into one
Step；The diameter of the aperture is 1-1.5mm；Further；Multiple hole for injecting glue are circle with the center of coil rack
The heart is uniformly distributed；Further；The cavity two close to end have a shaft shoulder portion, radially along inner face and shaft shoulder portion phase
Contact.
The positive advantageous effects of the utility model are: this high pressure-resistant position switch sensor eliminates transition company
Joint chair is reduced the volume of product, can apply in more occasions, using aperture pressure resistance, due to the sectional area of aperture
It is designed as very little, is pressure formula according to F=PS, wherein F is finger pressure, and P indicates pressure, and S is compression area, very due to S
Small, in the case where pressure is certain, aperture is transmitted to the pressure very little at circuit board, so can effectively will be electric using aperture
Road part and oil pressure are kept apart, and the oil pressure of 25MPa can be born after encapsulated epoxy resin.
Detailed description of the invention
Fig. 1 is the schematic internal view of the utility model.
Fig. 2 is the schematic diagram after shell is splitted.
Fig. 3 is the schematic diagram after the integral product assembly of the utility model.
Fig. 4 is the schematic elevation view of coil rack.
Fig. 5 is the elevational schematic view of coil rack.
Fig. 6 is traditional high pressure-resistant position switch sensor with transition attachment base.
Specific embodiment
In order to more fully explain the implementation of the utility model, the embodiment of the utility model is provided.These implement real
Example is only the elaboration to the utility model, does not limit the scope of the utility model.
In conjunction with attached drawing to the further details of explanation of the utility model, respectively marked in attached drawing are as follows: 1: shell；2: cavity one；
3: aperture；4: cavity two；5: the shaft shoulder；6: induction coil；7: circuit board；8: epoxy resin embedding adhesive；9: coil rack；10: diameter
To edge；11: hydraulic oil；12: upper cover；13: inductive iron core；14: hole for injecting glue；15: silica gel；16: transition attachment base.
As shown in attached drawing 1-5, a kind of high pressure-resistant position switch sensor, including shell 1, it is provided with circuit inside the shell
Plate 7 and induction coil 6, the shell is interior to have cavity 1 and cavity 24, and circuit board 7 is located in cavity 1, induction coil
6 are located in cavity 24, are connected between cavity one and cavity two by aperture 3, and the diameter of the aperture is less than or equal to 2mm, more
To be detailed, the diameter of the aperture is less than or equal to 1.5mm；Further；The diameter of the aperture is 1-1.5mm；Institute
The induction coil stated is wrapped on coil rack 9, the coil rack be an oral area have radially along band round-ended cylinder, 10 institutes
Be shown as radially along, coil is wrapped on cylinder outer wall, radially along the diameter of diameter and cavity two match, radially along being located at chamber
In body two, the cavity two close to end have a shaft shoulder portion 5, radially along inner face be in contact with shaft shoulder portion, radially along
Multiple hole for injecting glue are offered on 10,14 show hole for injecting glue, and multiple hole for injecting glue are equal as the center of circle using the center of coil rack
Even distribution in hole for injecting glue, is filled with epoxy resin embedding adhesive in the gap of cavity two, in aperture and in the gap of cavity one；8
It show epoxy resin embedding adhesive.Iron core shown in figure is connected to induction spool position on spool, is not this sensor
Component part, be to be used cooperatively with this sensor, in the cylinder of coil rack.Upper cover is connected with after assembly on the shell
12。
When the utility model assembles, induction coil is wound on coil rack first, circuit board is then placed in cavity
In one, the connecting line of induction coil and circuit board is connected on circuit boards by penetrating into cavity one in aperture, then will
Coil rack is seated in cavity two, radially along inner face be in contact with shaft shoulder portion after be located in cavity two, then pass through note
Epoxy resin embedding adhesive is infused in glue hole, in the gap of hole for injecting glue, cavity two, the gap of aperture and cavity one is potted.
Oil pressure acts on epoxide-resin glue this sensor when in use, is transmitted to the pressure in cavity two very by aperture
It is small, it is ensured that circuit board is working properly, meets the resistance to pressure request of device, this high pressure-resistant position switch sensor is resistant to oil pressure
25MPa。
After the embodiments of the present invention is described in detail, one of ordinary skilled in the art is clearly understood that,
Various change and modification can be carried out by not departing under above-mentioned claim and spirit, all according to the technical essence of the utility model
Any simple modification, equivalent change and modification to the above embodiments belong to the range of technical solutions of the utility model,
And the utility model is also not only restricted to the embodiment of example in specification.
Claims (5)
1. a kind of high pressure-resistant position switch sensor, including shell, are provided with circuit board and induction coil inside the shell, special
Sign is: having cavity one and cavity two in the shell, circuit board is located in cavity one, and induction coil is located at cavity two
In, it is connected between cavity one and cavity two by aperture, the diameter of the aperture is less than or equal to 2mm, the induction coil
Be wrapped on coil rack, the coil rack be an oral area have radially along band round-ended cylinder, coil is wrapped in outside cylinder
On wall, radially along the diameter of diameter and cavity two match, radially along being located in cavity two, multiple radially along above offering
Hole for injecting glue in hole for injecting glue, is filled with epoxy resin embedding adhesive in the gap of cavity two, in aperture and in the gap of cavity one.
2. a kind of high pressure-resistant position switch sensor according to claim 1, it is characterised in that: the aperture it is straight
Diameter is less than or equal to 1.5mm.
3. a kind of high pressure-resistant position switch sensor according to claim 1, it is characterised in that: the aperture it is straight
Diameter is 1-1.5mm.
4. a kind of high pressure-resistant position switch sensor according to claim 1, it is characterised in that: multiple injecting glues
Hole is uniformly distributed using the center of coil rack as the center of circle.
5. a kind of high pressure-resistant position switch sensor according to claim 1, it is characterised in that: the cavity two connects
Close end have a shaft shoulder portion, radially along inner face be in contact with shaft shoulder portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275848.5U CN208635706U (en) | 2018-08-09 | 2018-08-09 | A kind of high pressure-resistant position switch sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275848.5U CN208635706U (en) | 2018-08-09 | 2018-08-09 | A kind of high pressure-resistant position switch sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635706U true CN208635706U (en) | 2019-03-22 |
Family
ID=65741264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821275848.5U Active CN208635706U (en) | 2018-08-09 | 2018-08-09 | A kind of high pressure-resistant position switch sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208635706U (en) |
-
2018
- 2018-08-09 CN CN201821275848.5U patent/CN208635706U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211118 Address after: 455000 No. 2, north of west section of Changjiang Avenue, high tech Zone, Anyang City, Henan Province Patentee after: Anyang Kaidi Magnetic Technology Co.,Ltd. Address before: 455000 No.303 Changjiang Avenue, high tech Zone, Anyang City, Henan Province Patentee before: ANYANG KAIDI ELECTROMAGNETIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |