CN209561110U - A kind of explosion-proof thermal resistor - Google Patents
A kind of explosion-proof thermal resistor Download PDFInfo
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- CN209561110U CN209561110U CN201821566954.9U CN201821566954U CN209561110U CN 209561110 U CN209561110 U CN 209561110U CN 201821566954 U CN201821566954 U CN 201821566954U CN 209561110 U CN209561110 U CN 209561110U
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- ceramic box
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- core component
- thermal resistor
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Abstract
The utility model discloses a kind of explosion-proof thermal resistor, include chip and lead, one end of lead is connected to chip by welding body, the welding ends of chip, welding body and lead forms core component, and core component is embedded in ceramic box, and ceramic box has bottom surface and side wall, wherein bottom surface is provided with fairlead, lead is pierced by by fairlead, encapsulating obturator is filled in ceramic box, wherein being formed about boron glue seal in ceramic box lead hole.The thermal resistor of the utility model is encapsulated with explosion-proof ceramic box, and ceramic box bottom opening is easy to manufacture, has good applicability and manufacturing.
Description
Technical field
The utility model belongs to thermal resistor field, relates in particular to a kind of explosion-proof thermal resistor.
Background technique
Thermal resistor is applied at many aspects.With the increase of application environment, to resistor device itself in stabilization
Requirement in terms of property and reliability will be higher and higher.Thermal resistor is easy explosion in extreme circumstances, in order to cope with this side
The requirement in face needs to develop the thermal resistor with explosion-proof performance.
Utility model content
In order to enable thermal resistor can adapt to the use under more kinds of environment and more extreme environment and usage mode,
It prevents from bursting, the utility model develops a kind of explosion-proof thermal resistor.
Specifically, the utility model uses following technical scheme:
A kind of explosion-proof thermal resistor includes chip and lead, and one end of lead is connected to chip, core by welding body
The welding ends of piece, welding body and lead forms core component, which is characterized in that core component is embedded in ceramic box, ceramic box tool
There are bottom surface and side wall, wherein bottom surface is provided with fairlead, and lead is pierced by by fairlead, encapsulating obturator is filled in ceramic box,
In in ceramic box lead hole be formed about boron glue seal.Preferably, insulation-encapsulated body is also wrapped up outside core component, absolutely
Insulating protective layer is also formed with outside edge packaging body, core component is wrapped in interior by insulating protective layer.Additionally preferably, it is worn in lead
The part of fairlead has lead set out.
The utility model discloses a kind of explosion-proof thermal resistor, includes chip and lead, one end of lead passes through welding body
It is connected to chip, the welding ends of chip, welding body and lead is wrapped to form core component, core component embedment by insulation-encapsulated body
In ceramic box, ceramic box has bottom surface and side wall, and wherein bottom surface is provided with fairlead, and lead is pierced by by fairlead, in ceramic box
Fill encapsulating obturator.The thermal resistor of the utility model is encapsulated with explosion-proof ceramic box, ceramic box bottom opening, is easy system
It makes, there is good applicability and manufacturing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of thermal resistor of the invention；
Fig. 2 is the schematic diagram of daub tooling.
In figure: 1, chip；2, lead；3, welding body；4, ceramic box；5, encapsulating obturator；6, fairlead；7, boron glue
Seal；8, insulation-encapsulated body；9, insulating protective layer；10, lead set；11, table top；12, groove.
Specific embodiment
1 the utility model is described in detail with reference to the accompanying drawing.
Temp probe often uses shape temperature resistance under circumstances in other words, in more severe and high temperature environment
Under, resistor core component is easy to happen explosion.In order to avoid the appearance of problem above, so that shape temperature resistance can adapt to more
Use under a variety of environment and more extreme environment and usage mode, the utility model develop a kind of explosion-proof temperature resistor.
Referring to Fig. 1, the explosion-proof temperature resistor of the utility model includes chip 1 and lead 2, and one end of two leads is logical
It crosses welding body 3 and is connected to two sides of chip, the welding ends of chip, welding body and lead forms core component.
Core component is embedded in ceramic box 4, and ceramic box has bottom surface and side wall, and wherein bottom surface is provided with fairlead 6, and lead is logical
It crosses fairlead to be pierced by, encapsulating obturator 5 is filled in ceramic box.Ceramic box has the function of explosion-proof, avoids resistance in use
The explosion of device has an impact the device for using resistor.Ceramic box is explosion-proof simultaneously, insulate, high temperature resistant, enhances resistor
Intensity increases the scope of application of shape temperature resistance.
Boron glue seal 7 has been formed about in ceramic box lead hole.Boron glue surface tension is big, high temperature resistant and insulation, and
And there is good thermal diffusivity, it is very suitable to the hole of sealed bottom.Core component is being inserted into ceramic box and is being drawn when manufacture
After line is pierced by fairlead, first apply boron glue, forms boron glue seal after solidification, then refill encapsulating.Encapsulating by silicone resin or
Epoxy resin is formed, and encapsulating can be by the way of daub.Therefore the resistor of the utility model has good manufacturing.
Preferably, also manufacture has an insulation-encapsulated body 8 outside core component, the insulation-encapsulated body can with glass material,
But also resin material.It is also formed with insulating protective layer 9 in vitro in insulation-encapsulated, insulating protective layer is wrapped in vitro in insulation-encapsulated
One layer of insulating cement such as silica gel or resin of envelope, this layer have the function of waterproof, high temperature resistant and buffering, core component are wrapped in
It is interior.
There is lead set 10 in the part that lead is pierced by fairlead, generally formed by heat-shrinkable T bush, after shrinking, Ke Yizai
Dispensing, which covers lead, to be sealed.
The utility model discloses a kind of explosion-proof temperature resistor, is encapsulated with explosion-proof ceramic box, ceramic box bottom opening, holds
Easily manufacture has good applicability and manufacturing.The shape temperature resistance of the utility model is more resistant to impact, high temperature resistant, applicability
Good, explosion-proof is good, has better environmental suitability.
1) manufacturing method of above-mentioned explosion-proof thermal resistor is the following steps are included: weld: by thermistor chip and lead
Core component is welded together to form by welding body；2) it fills shell: getting out ceramic box, the ceramic box has bottom surface and side
Wall, wherein bottom surface is provided with fairlead, and the lead of core component is pierced by by fairlead；3) it sealing of hole: is instilled into ceramic box few
Measure boron glue sizing material, it is ensured that boron glue can cover the range on fairlead periphery；4) it encapsulates: pouring into encapsulating sizing material into ceramic box for core
Center portion part is completely covered；5) solidify: the sizing material in ceramic box being solidified, explosion-proof thermal resistor is formed.
The composition of boron glue sizing material used in it includes the borax of epoxyn and accounting 0.1-5%.In addition, envelope
Encapsulating sizing material used in dress is epoxyn.The sizing material can be identical as the sizing material composition in boron glue, or different.
Size composition in boron glue sizing material and encapsulating sizing material, such as epoxyn DP420 and the similar production of 3M company
Product.In the manufacture of boron glue, boron glue first can be prepared into aqueous solution, mix aqueous solution with sizing material to be added dropwise before to be used,
Then it instills ceramic box and ensures to cover fairlead.To prevent boron glue, just aqueous gelled before instillation cause cannot be at ceramic box bottom
It successfully sprawls, unsuitable excessively high, the generally 0.01-5% of sizing material of borax ingredient contained therein, preferred range is
0.1-5%, more preferable 0.1-2%.
In the above-mentioned methods, encapsulation makes ceramic box upper surface and tooling surface that is, in daub tooling using daub mode
Concordantly, sizing material is then poured into, doctor blade is finally used.Since resistor uses the structure of the utility model, Ke Yifang
Just it is packaged by the way of daub, substantially increases the efficiency of product manufacturing.Fig. 2 is the schematic diagram of daub tooling.Such as
Shown in figure, daub tooling be on a table top 11 have a strip-shaped groove 12, resistor to be packaged be stuck in slot according to
It is secondary to move forwards, when suitable, sizing material is poured into ceramic box, and then redundant rubber stock outstanding is struck off with scraper and is erased
It can reach filling purpose.Using the resistor structure of the utility model, in conjunction with corresponding tooling, so that the manufacture of resistor
The efficiency of process is greatly improved.In the manufacture of resistor, resistor itself, which can be, is fixed on corresponding tooling
On, such as adhesive tape etc., daub tooling is adapted to this mode and reequips to groove.
The embodiments of the present invention is described in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment, technical field those of ordinary skill within the scope of knowledge, this reality can also not departed from
It is made a variety of changes under the premise of novel objective.
Claims (3)
- It include chip and lead 1. a kind of explosion-proof thermal resistor, one end of lead is connected to chip by welding body, chip, The welding ends of welding body and lead forms core component, which is characterized in that core component is embedded in ceramic box, and ceramic box has bottom Face and side wall, wherein bottom surface is provided with fairlead, and lead is pierced by by fairlead, and encapsulating obturator is filled in ceramic box, wherein Ceramic box lead hole has been formed about boron glue seal.
- 2. explosion-proof thermal resistor as described in claim 1, which is characterized in that also wrap up insulation-encapsulated outside core component Body, insulation-encapsulated are also formed with insulating protective layer in vitro, and core component is wrapped in interior by insulating protective layer.
- 3. explosion-proof thermal resistor as described in claim 1, which is characterized in that have in the part that lead is pierced by fairlead and draw Line set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821566954.9U CN209561110U (en) | 2018-09-26 | 2018-09-26 | A kind of explosion-proof thermal resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821566954.9U CN209561110U (en) | 2018-09-26 | 2018-09-26 | A kind of explosion-proof thermal resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209561110U true CN209561110U (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821566954.9U Active CN209561110U (en) | 2018-09-26 | 2018-09-26 | A kind of explosion-proof thermal resistor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637761A (en) * | 2018-09-26 | 2019-04-16 | 南京时恒敏感元件有限公司 | A kind of explosion-proof thermal resistor and its manufacturing method |
-
2018
- 2018-09-26 CN CN201821566954.9U patent/CN209561110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637761A (en) * | 2018-09-26 | 2019-04-16 | 南京时恒敏感元件有限公司 | A kind of explosion-proof thermal resistor and its manufacturing method |
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