CN204346603U - A kind of thermal resistance - Google Patents
A kind of thermal resistance Download PDFInfo
- Publication number
- CN204346603U CN204346603U CN201520002522.5U CN201520002522U CN204346603U CN 204346603 U CN204346603 U CN 204346603U CN 201520002522 U CN201520002522 U CN 201520002522U CN 204346603 U CN204346603 U CN 204346603U
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- CN
- China
- Prior art keywords
- connecting tube
- upper connecting
- sleeve pipe
- threaded connector
- terminal box
- Prior art date
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model discloses a kind of thermal resistance, comprise terminal box, sleeve pipe, upper connecting tube cap, threaded connector, electric conversion joint and platinum resistive element; The box body internal fixtion of terminal box has terminal block, and terminal box one end is connected with and cap, and cap is provided with web member away from terminal box one end, and the periphery of terminal box is provided with outlet-pipe, and electric conversion joint connects with outlet-pipe; Sleeve pipe, upper connecting tube are coaxially arranged, the docking of sleeve pipe, upper connecting tube is also connected and fixed by threaded connector, upper connecting tube connects with web member away from sleeve pipe one end, and platinum resistive element is arranged in cannula cavity, and platinum resistive element runs through upper connecting tube successively and cap enters terminal box and is connected with terminal block.The utility model quick and easy for installation and with mounted piece firm and reliable connection, improve the explosion-proof performance of thermal resistance.
Description
Technical field
The utility model relates to temperature sensor technology field, particularly relates to a kind of thermal resistance.
Background technology
Temperature is a basic physical quantity, all processes of occurring in nature are invariably closely related with temperature, as the sensor measured temperature, temperature sensor can convert temperature information to usable output signal, and temperature sensor has a wide range of applications and the huge market share.
Current thermal resistance is with mounted piece connection procedure, and thermal resistance is connected with mounted piece by flange, adopts flange connection not only to install trouble, and there is poorly sealed problem between mounted piece and flange.General flange is connected with mounted piece by screw, and when mounted piece is in vibration environment, flange can loosen, and causes connection unreliable, affects measuring accuracy.
Utility model content
In order to solve the technical matters existed in background technology, the utility model proposes a kind of thermal resistance, quick and easy for installation and with mounted piece firm and reliable connection, improve the explosion-proof performance of thermal resistance.
A kind of thermal resistance that the utility model proposes, comprises terminal box, sleeve pipe, upper connecting tube cap, threaded connector, electric conversion joint and platinum resistive element; The box body internal fixtion of terminal box has terminal block, and terminal box one end is connected with and cap, and cap is provided with web member away from terminal box one end, and the periphery of terminal box is provided with outlet-pipe, and electric conversion joint connects with outlet-pipe; Sleeve pipe, upper connecting tube are coaxially arranged, the docking of sleeve pipe, upper connecting tube is also connected and fixed by threaded connector, upper connecting tube connects with web member away from sleeve pipe one end, and platinum resistive element is arranged in cannula cavity, and platinum resistive element runs through upper connecting tube successively and cap enters terminal box and is connected with terminal block.
Preferably, the internal diameter of cannula cavity and platinum resistive element external diameter equal and opposite in direction.
Preferably, upper connecting tube periphery and web member end face adopt and are welded and fixed connection.
Preferably, threaded connector comprises the first threaded connector and second threaded connector of coaxial setting, first threaded connector is set in outside upper connecting tube, and be welded and fixed connection at the first threaded connector end face and the employing of upper connecting tube periphery, second threaded connector is set in outside of sleeve, and is welded and fixed connection at the second threaded connector end face and the employing of sleeve pipe periphery.
Preferably, threaded connector adopts NPT 1/4 threaded connector.
Preferably, sleeve outer is less than the external diameter of upper connecting tube, and the diameter of cannula cavity is less than upper connecting tube internal diameter.
A kind of thermal resistance that the utility model provides, adopts threaded connector to connect upper connecting tube and sleeve pipe, comes connection thermal resistor and mounted piece, firm and reliable connection, improve the explosion-proof performance of thermal resistance, extend serviceable life by threaded connector.Adopt between threaded connector and upper connecting tube, sleeve pipe and be welded to connect, improve the connection reliability between upper connecting tube and sleeve pipe, upper connecting tube internal diameter is greater than casing inner diameter, makes platinum resistive element quick and easy for installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of thermal resistance that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of thermal resistance that the utility model proposes.
With reference to Fig. 1, a kind of thermal resistance that the utility model proposes, comprises terminal box 1, sleeve pipe 2, upper connecting tube 3 cap 4, threaded connector 5, electric conversion joint 6 and platinum resistive element; The box body internal fixtion of terminal box 1 has terminal block, and terminal box 1 one end is connected with and cap 4, and cap 4 is provided with web member 41 away from terminal box 1 one end, and the periphery of terminal box 1 is provided with outlet-pipe, and electric conversion joint 6 connects with outlet-pipe; Sleeve pipe 2, upper connecting tube 3 are coaxially arranged, and sleeve pipe 2 external diameter is less than the external diameter of upper connecting tube 3, and the diameter of sleeve pipe 2 inner chamber is less than upper connecting tube 3 internal diameter; Sleeve pipe 2, upper connecting tube 3 are docked and are connected and fixed by threaded connector 5, and threaded connector 5 adopts NPT1/4 threaded connector; Upper connecting tube 3 adopts welding connecting mode and web member 41 to be connected and fixed away from sleeve pipe 2 one end, improves the strength of joint of terminal box 1 and also cap 4; Platinum resistive element is arranged in sleeve pipe 2 inner chamber, and platinum resistive element runs through upper connecting tube 3 successively and cap 4 enters terminal box 1 and is connected with terminal block, the internal diameter of sleeve pipe 2 inner chamber and platinum resistive element external diameter equal and opposite in direction.
In a particular embodiment, threaded connector 5 comprises coaxial the first threaded connector 51 and the second threaded connector 52 arranged, first threaded connector 51 is set in outside upper connecting tube 3, and be welded and fixed connection at the first threaded connector 51 end face and the employing of upper connecting tube 3 periphery, second threaded connector 52 is set in outside sleeve pipe 2, and be welded and fixed connection at the second threaded connector 52 end face and the employing of sleeve pipe 2 periphery, improve the connectivity robustness of sleeve pipe 2 and upper connecting tube 3.When thermal resistance is installed to workplace, threaded connector 5 connection thermal resistor and mounted piece, firm and reliable connection, avoids mounted piece to vibrate and causes sleeve pipe 2 or upper connecting tube 3 come off and affect measurement result, extend serviceable life, improve measuring accuracy.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (6)
1. a thermal resistance, it is characterized in that, comprise terminal box (1), sleeve pipe (2), upper connecting tube (3) cap (4), threaded connector (5), electric conversion joint (6) and platinum resistive element; The box body internal fixtion of terminal box (1) has terminal block, terminal box (1) one end is connected with and cap (4), and cap (4) is provided with web member (41) away from terminal box (1) one end, the periphery of terminal box (1) is provided with outlet-pipe, and electric conversion joint (6) connects with outlet-pipe; Sleeve pipe (2), upper connecting tube (3) are coaxially arranged, sleeve pipe (2), upper connecting tube (3) dock and pass through threaded connector (5) and be connected and fixed, upper connecting tube (3) connects away from the same web member in sleeve pipe (2) one end (41), platinum resistive element is arranged in sleeve pipe (2) inner chamber, and platinum resistive element runs through upper connecting tube (3) successively and cap (4) enters terminal box (1) and is connected with terminal block.
2. thermal resistance according to claim 1, is characterized in that, the internal diameter of sleeve pipe (2) inner chamber and platinum resistive element external diameter equal and opposite in direction.
3. thermal resistance according to claim 1, is characterized in that, upper connecting tube (3) periphery and web member (41) end face adopt and be welded and fixed connection.
4. thermal resistance according to claim 1, it is characterized in that, threaded connector (5) comprises the first threaded connector (51) and second threaded connector (52) of coaxial setting, first threaded connector (51) is set in upper connecting tube (3) outside, and be welded and fixed connection at the first threaded connector (51) end face and the employing of upper connecting tube (3) periphery, second threaded connector (52) is set in sleeve pipe (2) outside, and is welded and fixed connection at the second threaded connector (52) end face and the employing of sleeve pipe (2) periphery.
5. the thermal resistance according to claim 1 or 4, is characterized in that, threaded connector (5) adopts NPT 1/4 threaded connector.
6. thermal resistance according to claim 1, is characterized in that, sleeve pipe (2) external diameter is less than the external diameter of upper connecting tube (3), and the diameter of sleeve pipe (2) inner chamber is less than upper connecting tube (3) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002522.5U CN204346603U (en) | 2015-01-04 | 2015-01-04 | A kind of thermal resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002522.5U CN204346603U (en) | 2015-01-04 | 2015-01-04 | A kind of thermal resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346603U true CN204346603U (en) | 2015-05-20 |
Family
ID=53229864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520002522.5U Expired - Fee Related CN204346603U (en) | 2015-01-04 | 2015-01-04 | A kind of thermal resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204346603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568201A (en) * | 2015-01-04 | 2015-04-29 | 安徽蓝德仪表有限公司 | Thermal resistor |
-
2015
- 2015-01-04 CN CN201520002522.5U patent/CN204346603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568201A (en) * | 2015-01-04 | 2015-04-29 | 安徽蓝德仪表有限公司 | Thermal resistor |
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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: 20150520 Termination date: 20160104 |