CN217304196U

CN217304196U - Quick response thermal resistor for sealed pipeline

Info

Publication number: CN217304196U
Application number: CN202221322514.5U
Authority: CN
Inventors: 林育钦
Original assignee: Xiamen Autolise Industrial Automation Co ltd
Current assignee: Xiamen Autolise Industrial Automation Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-08-26
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a sealed pipeline is with quick response thermal resistance, it includes chip, temperature measurement paster and probe rod, and the upper end and the lower extreme of probe rod are open type structure, and two chip lead wires are connected to the lower extreme of chip, and two chip lead wires connect the lead wire that corresponds respectively, and the upper end of chip is through being connected to the temperature measurement paster, and the inside at the probe rod is connected to the temperature measurement paster, and the last port of probe rod is plugged up to the temperature measurement paster. The beneficial effects of the utility model are that: the end part of the probe rod is provided with the temperature measuring patch, and the chip and the temperature measuring patch are horizontally placed and bonded together through the heat conducting glue, so that the chip can quickly acquire a temperature signal through the temperature measuring patch, and the response speed is greatly improved; the outer side of the lower part of the probe rod is provided with threads, so that the screw cap can be adjusted up and down to meet the temperature measurement requirement of insufficient depth.

Description

Quick-response thermal resistor for sealed pipeline

Technical Field

The utility model relates to a sealed pipeline is with quick response thermal resistance belongs to thermal resistance technical field.

Background

Thermal resistance is one of the most commonly used temperature detectors in the medium and low temperature regions. Thermal resistance thermometry is based on the property that the resistance of a metal conductor increases with increasing temperature. Its main features are high measuring precision and stable performance. The existing thermal resistor is characterized in that a chip is arranged in a sleeve, heat is transferred through the sleeve and a filling medium, the chip senses temperature and converts the temperature into an electric signal to obtain temperature information, and therefore the existing thermal resistor has the defect of long response time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a sealed pipeline is with quick response thermal resistance, and the probe rod tip of this thermal resistance sets up the temperature measurement paster, and the chip is placed with temperature measurement paster level and bonds together through heat conduction glue, and the chip can acquire temperature signal through the temperature measurement paster fast like this, and response speed improves greatly.

The utility model discloses a following scheme realizes: the utility model provides a quick response thermal resistor for sealed pipeline, its includes chip, temperature measurement paster and probe rod, the upper end and the lower extreme of probe rod are open structure, two chip lead wires are connected to the lower extreme of chip, two the chip lead wire connects the lead wire that corresponds respectively, the upper end of chip is through being connected to the temperature measurement paster, the upper portion at the probe rod is connected to the temperature measurement paster, the temperature measurement paster shutoff is in the last port of probe rod.

The temperature measuring patch ring is welded on the top of the probe rod.

The thickness of the temperature measuring patch is 0.4 mm.

The chip lead and the lead are connected through welding, and the joint of the chip lead and the lead is a welding spot.

And the outer side of the lead is wrapped with an insulating layer.

The chip, the chip lead and the lead are all arranged in the probe rod.

And an insulating filling layer is filled in the probe rod, and the insulating filling layer isolates the two leads and also isolates the two chip leads.

The upper end of the chip is connected to the temperature measuring patch through the heat conducting glue.

The outer side of the probe rod is welded with a nut in a girth mode, an external thread is arranged on the main body of the nut, and the lower end of the nut is connected with an annular clamping block.

The nut is welded on the outer side of the probe rod by laser welding.

The beneficial effects of the utility model are that:

1. the utility model relates to a quick response thermal resistance probe rod tip for sealed pipeline sets up the temperature measurement paster, and the chip is placed with the temperature measurement paster level and is bonded together through the heat conduction glue, and the chip can acquire the temperature signal through the temperature measurement paster fast like this, and response speed improves greatly;

2. the outer side of the lower part of the quick response thermal resistance probe rod for the sealed pipeline is provided with the threads, so that the nut can be adjusted up and down to meet the temperature measurement requirement of insufficient depth;

3. the utility model relates to a sealed pipeline is with fast response thermal resistance has adopted behind the special end formula platinum resistance element welding lead wire of pasting to put into the stainless steel sleeve of thin flat bottom and do the special technology preparation of heat conduction packing back encapsulation and form, it is 6-8 times fast to be compared with the ordinary assembled thermal resistance response speed of diameter on the market, not only can be used to require the fast occasion of response speed, also can be used to the depth of insertion and shallowly need keep the occasion that measurement accuracy is high again.

Drawings

Fig. 1 is a schematic view of a front-view cross-sectional structure of a fast-response thermal resistor for a sealed pipeline according to the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1 is the chip, 2 is the temperature measurement paster, 3 is the probe rod, 4 is the external screw thread, 5 is the chip lead wire, 6 is the lead wire, 7 is annular fixture block, 8 is the solder joint, 9 is the insulating layer, 10 is insulating filling layer, 11 is heat-conducting glue, 12 is the nut.

Detailed Description

The present invention will be further described with reference to fig. 1-2, but the scope of the present invention is not limited to the description.

In which like parts are designated by like reference numerals. It is noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.

In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.

A quick response thermal resistor for a sealed pipeline comprises a chip 1, a temperature measuring patch 2 and a probe rod 3, wherein the upper end and the lower end of the probe rod 3 are both of an open structure, the lower end of the chip 1 is connected with two chip leads 5, the two chip leads 5 are respectively connected with corresponding leads 6, an insulating layer 9 is wrapped outside the leads 6, the upper end of the chip 1 is connected to the temperature measuring patch 2 through a heat conducting adhesive 11, the temperature measuring patch 2 is welded on the top of the probe rod 3 by adopting a laser ring, the upper port of the probe rod 3 is sealed by the temperature measuring patch 2, the thickness of the temperature measuring patch 2 is 0.4mm, the chip 1 and the temperature measuring patch 2 are horizontally placed and are bonded together through the heat conducting adhesive, so that the chip 1 can quickly obtain a temperature signal through the temperature measuring patch 2, the response speed is greatly improved, the quick response speed is 6-8 times faster than that a common assembly thermal resistor with the same diameter on the market, and can be used for occasions requiring the quick response speed, the temperature measuring patch 2 can also be used in the occasions with shallow insertion depth and high measurement precision, and the temperature measuring patch 2 is of a circular structure 2.

The chip lead 5 and the lead 6 are connected through welding, the joint of the chip lead 5 and the lead 6 is a welding spot 8, the chip 1, the chip lead 5 and the lead 6 are all arranged in the probe rod 3, the probe rod 3 is filled with an insulating filling layer 10, the insulating filling layer 10 isolates the two leads 6 and also isolates the two chip leads 5, and the insulating filling layer 10 adopts magnesium oxide powder.

The outside girth welding nut 12 of probe rod 3, nut 12 adopt laser fusion welding in the outside of probe rod 3, are equipped with external screw thread 4 in the main part of nut 12, and annular fixture block 7 is connected to the lower extreme of nut 12, and this application passes through nut 12 structure, can rotate to be fixed in sealed pipeline, also dismantles easily.

While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a sealed pipeline is with quick response thermal resistance which characterized in that: it includes chip (1), temperature measurement paster (2) and probe rod (3), the upper end and the lower extreme of probe rod (3) are open structure, two chip lead wires (5) are connected to the lower extreme of chip (1), two chip lead wire (5) connect corresponding lead wire (6) respectively, the upper end of chip (1) is through being connected to temperature measurement paster (2), the upper portion at probe rod (3) is connected in temperature measurement paster (2), temperature measurement paster (2) shutoff is in the last port of probe rod (3).

2. The fast response thermal resistor for sealing a pipe of claim 1, wherein: the temperature measuring patch (2) is welded on the top of the probe rod (3) in a surrounding mode.

3. The fast response thermal resistor for sealing pipelines according to claim 1, wherein: the thickness of the temperature measuring patch (2) is 0.4 mm.

4. The fast response thermal resistor for sealing a pipe of claim 1, wherein: the chip lead (5) is connected with the lead (6) through welding, and the joint of the chip lead (5) and the lead (6) is a welding spot (8).

5. The fast response thermal resistor for sealing a pipe of claim 1, wherein: and the outer side of the lead (6) is wrapped with an insulating layer (9).

6. The fast response thermal resistor for sealing a pipe of claim 1, wherein: the chip (1), the chip lead (5) and the lead (6) are all arranged in the probe rod (3).

7. The fast response thermal resistor for sealing a pipe of claim 1, wherein: and an insulating filling layer (10) is filled in the probe rod (3), and the insulating filling layer (10) isolates the two leads (6) and also isolates the two chip leads (5).

8. The fast response thermal resistor for sealing a pipe of claim 1, wherein: the upper end of the chip (1) is connected to the temperature measuring patch (2) through the heat conducting glue (11).

9. The fast response thermal resistor for sealing pipelines according to claim 1, wherein: the outer side of the probe rod (3) is welded with a nut (12) in a circumferential welding mode, an external thread (4) is arranged on the main body of the nut (12), and the lower end of the nut (12) is connected with an annular clamping block (7).

10. The fast response thermal resistor for sealing a pipe of claim 9, wherein: the screw cap (12) is welded on the outer side of the probe rod (3) by laser welding.