CN202869687U - Temperature sensor for detecting temperature of liquid medium - Google Patents
Temperature sensor for detecting temperature of liquid medium Download PDFInfo
- Publication number
- CN202869687U CN202869687U CN 201220504325 CN201220504325U CN202869687U CN 202869687 U CN202869687 U CN 202869687U CN 201220504325 CN201220504325 CN 201220504325 CN 201220504325 U CN201220504325 U CN 201220504325U CN 202869687 U CN202869687 U CN 202869687U
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- plug
- circuit board
- temperature sensor
- liquid medium
- temperature
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Abstract
Disclosed in the utility model is a temperature sensor for detecting a temperature of a liquid medium. The temperature sensor comprises a plug, a circuit board, a tube case, a connecting piece and a platinum resistor. The circuit board is arranged inside the tube case; the plug is fixed at one end of the tube case; the platinum resistor is fixed at the other end of the tube case by the connecting piece; the leading-out wire of the platinum resistor is welded on the circuit board; and the circuit board and the plug are connected by a lead. Besides, the platinum resistor is a cylindrical component; and the connecting piece is a connecting screw. The provided temperature sensor has advantages of convenient installation, novel structure and easy implementation.
Description
Technical field
The utility model relates to a kind of temperature sensor for the liquid medium temperature detection.
Background technology
At industrial circle, a lot of field settings are more abominable, as engineering machinery often the high heat of high temperature, cold low temperature, dust etc. some than carrying out work under the rugged environment.And just because of be under these rugged environments, the stability of machinery, reliable just performance being had higher requirement, the stability of its kinematic train is particularly important.And traditional temperature sensor is because the reasons in structure such as bad mechanical strength can't stand the harsh and unforgiving environments test.
Therefore, be necessary to design a kind of novel temperature sensor.
The utility model content
Technical problem to be solved in the utility model provides a kind of temperature sensor for the liquid medium temperature detection, and the temperature sensor that should be used for the liquid medium temperature detection was easy for installation, and novel structure is easy to implement.
The technical solution of utility model is as follows:
A kind of temperature sensor for the liquid medium temperature detection comprises plug, circuit board, shell, web member and platinum resistance; Circuit board is arranged in the shell, and plug is fixed on an end of shell, and platinum resistance is fixed on the other end of shell by web member; The extension line of platinum resistance is welded on the circuit board, and circuit board is connected by wire with plug.
Described platinum resistance is cylindrical parts.
Described web member is attachment screw.
Described plug comprises the plug outer ring and with the threaded column of contact pin; Threaded column links to each other with the plug outer ring, and the plug outer ring is provided with a plurality of reference columns.
Beneficial effect:
Temperature sensor for the liquid medium temperature detection of the present utility model, precision is high, highly sensitive; This temperature sensor that detects for liquid medium temperature passes through platinum resistance detected temperatures signal, is converted to current signal by the treatment circuit on the circuit board; Sensor adopts whole laser bonding, and the integral protection grade can reach IP68.Install simple, convenient.
This temperature sensor can be used for measuring engineering machinery transmission internal liquid medium specified point temperature (such as coolant temperature, hydraulic fluid temperature), thereby effectively each vital point temperature in the liquid medium of kinematic train is carried out Real-Time Monitoring.It also can measure the temperature of liquid medium in other kinematic trains.
Advantage applies of the present utility model exists:
1) platinum resistance thermometer sensor, (being platinum resistance) of the whole armouring of employing, degree of protection is high.
2) shell adopts stainless steel, and intensity is high, can bear oil, aqueous corrosion.
3) product monolithic construction is installed simple, convenient.
In sum, this temperature sensing utensil high sensitivity for the liquid medium temperature detection is the detector unit of the real time temperature of probe point a kind of advanced person, that can measure fast and accurately measured medium.It utilizes the temperature-sensitive platinum resistance to carry out the Collect conversion of temperature signal, and the rib operator of side grasps the real time temperature of each point in the kinematic train constantly, and whether good assessment provides force data to the ability to work of whole machinery for the operator.The temperature sensing of this temperature sensor that detects for liquid medium temperature is platinum resistance sensor, it has good reproducibility, highly sensitive, advantage that the integral protection grade is high, but it is affected by its structure singularity, and it is particularly accurate that liquid medium is detected.
Description of drawings
Fig. 1 is the structural representation that is used for the temperature sensor of liquid medium temperature detection;
Fig. 2 is the scheme of installation that is used for the temperature sensor of liquid medium temperature detection;
Fig. 3 is the plug construction synoptic diagram;
Label declaration: 1-plug, 2-circuit board, 3-shell, 4-attachment screw, 5-platinum resistance, 6-lock pin, 7-plug outer ring, 8-reference column, 9-contact pin, 10-threaded column.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
As Figure 1-3, a kind of temperature sensor for the liquid medium temperature detection comprises plug, circuit board, shell, web member and platinum resistance; Circuit board is arranged in the shell, and plug is fixed on an end of shell, and platinum resistance is fixed on the other end of shell by web member; The extension line of platinum resistance is welded on the circuit board, and circuit board is connected by wire with plug.
Described platinum resistance is cylindrical parts.
Described web member is attachment screw.
Described plug comprises the plug outer ring and with the threaded column of contact pin; Threaded column links to each other with the plug outer ring, and the plug outer ring is provided with a plurality of reference columns.
The plug outside is stainless steel, and inner contact pin is fixing with the shell location with the plastic monoblock cast; Inboard three copper posts of rivet welding (being reference column) are used for fixing circuit board; Make circuit board fixing more firm.Contact pin is used for conducting electrical signals.
The Product Assembly method is as follows: the platinum resistance extension line passes the attachment screw bottom welding of packing into behind the attachment screw and fixes; The circuit board soldering is in the inner of plug simultaneously; Platinum resistance is assembled extension line pass whole shell 3 endoporus, with correspondence position firm welding on the circuit board; Then the end at shell is respectively charged into the attachment screw that welds the platinum resistance assembling, and the other end then is the plug that welds circuit board; Be fixed, namely finish the assembling of temperature sensor after the seal welding.
The working sensor principle: in the time of temperature variation, the variation that the resistance of platinum resistance also is directly proportional.Adopt Pt 1000 platinum resistance in this circuit, accuracy class is the A level.In the time of 0 ℃, the resistance of platinum resistance is 1000 Ω.Platinum resistance is converted into the variation of magnitude of voltage with the variation of temperature, adopt chip XTR108 in conjunction with peripheral circuit with this voltage signal by a series of conversion, export the current signal of 4～20mA.
Product adopts the two-wire system mode to export, and uses XTR series of processes chip.
Claims (4)
1. one kind is used for the temperature sensor that liquid medium temperature detects, and it is characterized in that, comprises plug, circuit board, shell, web member and platinum resistance; Circuit board is arranged in the shell, and plug is fixed on an end of shell, and platinum resistance is fixed on the other end of shell by web member; The extension line of platinum resistance is welded on the circuit board, and circuit board is connected by wire with plug.
2. the temperature sensor for the liquid medium temperature detection according to claim 1 is characterized in that described platinum resistance is cylindrical parts.
3. the temperature sensor for the liquid medium temperature detection according to claim 1 is characterized in that described web member is attachment screw.
4. the temperature sensor that detects for liquid medium temperature according to claim 1 is characterized in that, described plug comprises the plug outer ring and with the threaded column of contact pin; Threaded column links to each other with the plug outer ring, and the plug outer ring is provided with a plurality of reference columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504325 CN202869687U (en) | 2012-09-28 | 2012-09-28 | Temperature sensor for detecting temperature of liquid medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504325 CN202869687U (en) | 2012-09-28 | 2012-09-28 | Temperature sensor for detecting temperature of liquid medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869687U true CN202869687U (en) | 2013-04-10 |
Family
ID=48036397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504325 Expired - Lifetime CN202869687U (en) | 2012-09-28 | 2012-09-28 | Temperature sensor for detecting temperature of liquid medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088232A (en) * | 2020-06-30 | 2022-02-25 | 中国石油天然气股份有限公司 | Platinum resistance component |
-
2012
- 2012-09-28 CN CN 201220504325 patent/CN202869687U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088232A (en) * | 2020-06-30 | 2022-02-25 | 中国石油天然气股份有限公司 | Platinum resistance component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |