CN205593666U - Electromagnetic interference resistance's thermocouple sensor - Google Patents
Electromagnetic interference resistance's thermocouple sensor Download PDFInfo
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- CN205593666U CN205593666U CN201620387919.5U CN201620387919U CN205593666U CN 205593666 U CN205593666 U CN 205593666U CN 201620387919 U CN201620387919 U CN 201620387919U CN 205593666 U CN205593666 U CN 205593666U
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Abstract
The utility model provides an electromagnetic interference resistance's thermocouple sensor, include: the metal protection pipe, the shielding layer, the thermocouple wire, insulation support, the pyrocondensation pipe, metallic shield net and omega connect, the one end of thermocouple wire by the insulation support plastic envelope is lived, and the thermocouple silk braid behind the plastic envelope is established in the metal protection pipe, the shielding layer sets up insulation support with between the metal protection pipe, the lead wire part of thermocouple wire goes up the cover and is equipped with the metallic shield net, lead wire part with be provided with between the metal protection pipe the pyrocondensation pipe, the tip of lead wire part with the omega articulate. The utility model discloses a thermocouple sensor structure is simple, the improvement measuring accuracy, is applicable to the temperature measurement under all electromagnetic interference environment.
Description
Technical field
This utility model belongs to the technical field of continuous temperature measurement, particularly to a kind of thermocouple sensor of anti-electromagnetic interference in electric motor temp.
Background technology
At present, electric vehicle engineering quickly grows, car load light-weight design requires that power motor has higher power density and torque density, and this certainly will cause, and motor thermic load is more and more higher, parts heating is serious, and the motor failure problem that heating causes has become as a big obstacle of motor reliability.Motor internal parts temperature accurately measure can the calculating of effective support temperature field, reduce complexity of the calculation.But, temperature sensor measurements can be had a significant impact by motor internal electromagnetic environment, measurement result so will be caused deviation occur, and thus have influence on the accurate control of temperature, and then damage parts.
Therefore, a have in the case of electromagnetic interference can also the temperature sensor of accurate delivery signal for urgent needs.
Utility model content
For above-mentioned technical problem, this utility model provides the New-type thermocouple temperature sensor that a kind of simple in construction, measuring accuracy are high, can effectively shield the maskable strong electromagnetic of electromagnetic interference guarantee temperature survey accuracy.
The technical scheme that embodiment of the present utility model uses includes:
A kind of thermocouple sensor of anti-electromagnetic interference; including: protection metal pipe; screen layer; thermocouple wire, insulated sleeve, heat-shrink tube; metallic shield net and Ω joint; the working end of described thermocouple wire is lived by described insulated sleeve plastic packaging, and the thermocouple wire after plastic packaging is set in described protection metal pipe, and described screen layer is arranged between described insulated sleeve and described protection metal pipe；It is arranged with described metallic shield net in the lead portion of described thermocouple wire, between described lead portion and described protection metal pipe, is provided with described heat-shrink tube；The end of described lead portion is connected with described Ω joint.
Preferably, described thermocouple wire is nichrome material.
Preferably, described screen layer is Al alloy powder.
The beneficial effects of the utility model at least include:
(1) due to thermocouple sensor of the present utility model can the effective internal electromagnetic environment of shield electric machine, therefore use thermocouple sensor of the present utility model that kicker magnet temperature survey can improve measuring accuracy, effective supported design；
(2) thermocouple sensor simple in construction of the present utility model, be easily achieved, be applied basically for the temperature survey under all electromagnetic interference environments.
Accompanying drawing explanation
Fig. 1 is the thermocouple sensor schematic diagram of anti-electromagnetic interference of the present utility model.
Detailed description of the invention
Hereinafter, in conjunction with accompanying drawing, the thermocouple sensor of anti-electromagnetic interference of the present utility model is described in detail.
Fig. 1 is the thermocouple sensor schematic diagram of anti-electromagnetic interference of the present utility model.As it is shown in figure 1, the thermocouple sensor of anti-electromagnetic interference of the present utility model includes protection metal pipe 1, screen layer 2, thermocouple wire 3, insulated sleeve 4, heat-shrink tube 5, metallic shield net 6 and Ω joint 7 (Omega joint).
One end (working end) of thermocouple wire 3 is lived by insulated sleeve 4 plastic packaging, and the thermocouple wire after plastic packaging is set in protection metal pipe 1, and screen layer 2 is arranged between insulated sleeve 4 and protection metal pipe 1；It is arranged with metallic shield net 6 in the lead portion of thermocouple wire 3, between lead portion and protection metal pipe, is provided with heat-shrink tube 5；The end of lead portion is connected with Ω joint 7.
In this utility model, thermocouple wire 3 can use nichrome material, and this material shock resistance is good, it is big to measure scope.Screen layer 2 can be the Al alloy powder of shielding forceful electric power magnetic, but is not limited thereto.The material of protection metal pipe 1 is not particularly limited, as long as good heat conductivity, the material that corrosion-resistant, air-tightness good and oxidative resistance is good under the high temperature conditions can be suitable for.If the material of insulated sleeve 4 it is not also specifically limited, have good insulation preformance, the advantage such as corrosion-resistant material the most applicable.If the material of metallic shield net 6 it is not also specifically limited, maskable surrounding weak interference signal material the most applicable, such as aluminium alloy silk screen, copper alloy screen net.
The thermocouple sensor Making programme of anti-electromagnetic interference of the present utility model can comprise the steps:
The first step: after thermocouple wire is done varnished insulation, soldering, with ambroin pipe carry out insulating, be set with, plastic packaging；
Second step: the thermocouple wire after plastic packaging is put in protection metal pipe, Al alloy powder is placed in the middle of plastic packaging pipe and protection metal pipe simultaneously, and then shielding electromagnetic signal interference；
3rd step: by the metallic shield net dress shielding of the thermocouple wire lead portion after plastic packaging, and do insulation protection with heat-shrink tube between lead-in wire and protection metal pipe；
4th step: the end of lead-in wire connects Ω joint, thermocouple wire and Ω joint both positive and negative polarity want one_to_one corresponding.
By above-mentioned steps, the thermocouple sensor of the thermometric anti-electromagnetic interference being applicable under all electromagnetic interference environments of simple in construction, raising measuring accuracy can be fabricated to.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the most all will change, this specification content should not be construed as restriction of the present utility model.
Claims (3)
1. the thermocouple sensor of an anti-electromagnetic interference, it is characterised in that including: protection metal pipe,
Screen layer, thermocouple wire, insulated sleeve, heat-shrink tube, metallic shield net and Ω joint,
The working end of described thermocouple wire is lived by described insulated sleeve plastic packaging, the thermocouple silk braid after plastic packaging
Being located in described protection metal pipe, described screen layer is arranged on described insulated sleeve and described metal coating
Between pipe；
Be arranged with described metallic shield net in the lead portion of described thermocouple wire, described lead portion with
Described heat-shrink tube it is provided with between described protection metal pipe；
The end of described lead portion is connected with described Ω joint.
The thermocouple sensor of a kind of anti-electromagnetic interference the most according to claim 1, its feature exists
In, described thermocouple wire is nichrome material.
The thermocouple sensor of a kind of anti-electromagnetic interference the most according to claim 1, its feature exists
In, described screen layer is Al alloy powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387919.5U CN205593666U (en) | 2016-05-03 | 2016-05-03 | Electromagnetic interference resistance's thermocouple sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387919.5U CN205593666U (en) | 2016-05-03 | 2016-05-03 | Electromagnetic interference resistance's thermocouple sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205593666U true CN205593666U (en) | 2016-09-21 |
Family
ID=56933677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620387919.5U Active CN205593666U (en) | 2016-05-03 | 2016-05-03 | Electromagnetic interference resistance's thermocouple sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205593666U (en) |
-
2016
- 2016-05-03 CN CN201620387919.5U patent/CN205593666U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |