CN206415741U - The heater of portable gun welder - Google Patents
The heater of portable gun welder Download PDFInfo
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- CN206415741U CN206415741U CN201621402998.9U CN201621402998U CN206415741U CN 206415741 U CN206415741 U CN 206415741U CN 201621402998 U CN201621402998 U CN 201621402998U CN 206415741 U CN206415741 U CN 206415741U
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- temperature
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Abstract
The utility model provides the heater of portable gun welder, it includes ceramic body, temperature sensor, heating wire, ceramic bracket, wherein, ceramic bracket one end is connected with ceramic body, heating wire is in the spiral shape coiling of decreasing worm-pitch in surface of ceramic body, power line is penetrated from the ceramic bracket other end and is connected with heating wire, and ceramic body outer end end is provided with temperature sensor, and sense leads are penetrated from the ceramic bracket other end to be connected with temperature sensor.After this programme, among moving air heating process, heater has the features such as temperature difference of overall front and back end has reliable impact-resistant buffering, possesses real-time temperature caching, tail end temperature detection less than 150C °, heating wire, make heater away from limiting temperature, reach that efficient, extra long life, temperature are accurate, save.
Description
Technical field
The utility model is related to welding gun technical field, refers in particular to the heater of portable gun welder.
Background technology
In the market hot blast platform, sealing-off platform, plastic torch belong to air heating, and heater is led to by heating wire, insulation framework
Cross usual manner processing to form, the limiting temperature of common heating wire is less than 1100C °, because this kind equipment is to utilize flowing
The characteristic that is heated at high temperature of cold air, and heating wire is that high density is uniformly distributed built on stilts winding again so that heating wire is adding
In thermal process, the air of flowing is by front end（Initial charge end）Accumulation is superimposed upon rear stage until the tail end of heater successively（It is high
The warm port of export）, tail end will appear from serious overtemperature degree on heater, temperature close to even greater than 1100C degree, before heater,
There is the 400-500 temperature difference in rear end.Due to transfiniting for tail end temperature, the aging of heating wire is accelerated, heater is finally scrapped.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of the efficient, super of portable gun welder
Long-life, accurate temperature, energy-conservation, multi-purpose heater.
To achieve the above object, technical scheme provided by the utility model is：The heater of portable gun welder, it is wrapped
Ceramic body, temperature sensor, heating wire, ceramic bracket have been included, wherein, ceramic bracket one end is connected with ceramic body, and heating wire is in
The spiral shape coiling of decreasing worm-pitch is penetrated from the ceramic bracket other end and is connected with heating wire in surface of ceramic body, power line, ceramics
External end end is provided with temperature sensor, and sense leads are penetrated from the ceramic bracket other end to be connected with temperature sensor.
Described ceramic body is in hollow cylindrical, and four solidus glue grooves are distributed with cylindrical surface along its length, often
One solidus glue of setting-in in bar solidus glue groove, heating wire is fixed on surface of ceramic body by solidus glue, ceramic body it is hollow in
Chamber is used to insert iron core.
Described ceramic bracket is made up of inner ring and profile, and inner ring is located in outer shroud, between endocyclic outer wall and profile inwall
Connected by connecting rib, be reserved with to be provided with the inside of air guide chamber, inner ring between inner ring inner chamber and adjacent connection rib and iron body core support
Body.
The utility model is after using such scheme, among moving air heating process, and heater has overall front and rear
The temperature difference at end has reliable impact-resistant buffering less than 150C °, heating wire, possesses real-time temperature caching, tail end temperature detection etc.
Feature, makes heater away from limiting temperature, reaches that efficient, extra long life, temperature are accurate, save.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is Fig. 2 right view.
Fig. 4 is principle of heating figure of the present utility model.
Embodiment
With reference to all accompanying drawings, the utility model is described in further detail, and preferred embodiment of the present utility model is：Ginseng
Accompanying drawing 1 is seen to accompanying drawing 4, and the heater of the portable gun welder described in the present embodiment includes ceramic body 1, temperature sensor 2, electricity
Heated filament 3, ceramic bracket 4, wherein, the one end of ceramic bracket 4 is provided with ceramic body 1, and described ceramic body 1 is in hollow cylindrical, circle
One solidus glue 8 of setting-in, heating wire in four solidus glue grooves, every solidus glue groove is distributed with cylindrical surface along its length
3 are fixed on the surface of ceramic body 1 by solidus glue 8；Twist coiling is on the surface of ceramic body 1 for heating wire 3, and power line 9 is from ceramics
The other end of bracket 4 is penetrated to be connected with heating wire 3, and the outer end end of ceramic body 1 is provided with temperature sensor 2, and sense leads 7 are from ceramics
The other end of bracket 4 is penetrated to be connected with temperature sensor 2；Described ceramic bracket 4 is made up of inner ring and profile, and inner ring is located at outer
In ring, connected, be reserved between inner ring inner chamber and adjacent connection rib by connecting rib between endocyclic outer wall and profile inwall
It is provided with the inside of air guide chamber 5, inner ring and irons body core base body 6.The ceramic body made has hollow pipe characteristic, has certain wall thickness hollow
Four solidus glue grooves are distributed with cylinder, its surface along its length, and the hollow inwall of ceramic body has four symmetrical iron cores
The air guide chamber in geometrical rule and front and rear insertion is provided with base body, ceramic bracket, there are two sensors to lead on the outside of ceramic bracket
Line three-way hole and two AC220V power supply lead wires holes.Heating wire is wound on the cylinder of ceramic body according to arithmetic progression model, connected
Power supply lead wire and sensor lead.Solidus glue is beaten 4 solidus glue grooves by special equipment again, the heating wire after fixing will not
Short circuit is produced because of heat expansion and is loosened；, being capable of high degree, safely high efficiency, the production of utilization heating wire after this structure
Raw heat is effectively heated to one-way flow air, so that heating wire impact resistance and temperature buffer environment are brought up, while root
According to conventional heater under wind action temperature accumulation superposition defect successively from low to high, be framed under wind action temperature by height
To low reversely accumulation superposition successively, make the temperature front and back end embodied on heater basically identical, then pass through temperature detection, logic
Control, the gas flow temperature of precision output setting, so as to bring up extra long life, the heater of safety.
The design principle of this programme is：
Arithmetic progression is around simulation：d(i) = a - i * b
If：Length=L1 per circle, electric current=I, supply voltage=U, heating wire radius=d, ceramic cylinder diameter=D, often
Heating wire total number of turns=N on resistance=r1 of circle, all-in resistance=R, heater, resistivity=ρ, heating wire sectional area=S, per circle heat=
Q is put, conduction time=t
By formula proving：
Q puts=I2Rt=（U/R）2r1t
△ t=Q puts/cm
d(i) = a - i * b
K=Q puts/（c SjP ）
Then have, △ t（i）=K/(a–i*b)；
Thus draw：During calm energization, d is pressed when heating wire（i）When=a-i * b are arranged,
The temperature that earthenware shows is then by △ t（i）=K/(a–i*b)；Distribution.
Because hot air welding is to be heated by heater of the cold wind with certain flow rate through high temperature and be operated,
Meet Newton's law of cooling：Heat flow (Q)=forced convection heat transfer coefficient (hm) × body surface area (S) ×【Surface
Temperature (t0)-fluid temperature (F.T.) (t1)】Characteristic.
If：Heat flow=QS, forced convection heat transfer coefficient=hm, body surface area=Sb,
Surface temperature=t（i）, fluid temperature (F.T.)=tk, air specific heat capacity：C, atmospheric density p, volume of air=V, heating length
Degree=L
By formula proving：
Equation of heat balance：Q suctions=Q is put
Turbulent flow mean heat transfer coefficient：hm=6×（V/L0.25）0.8
△t（i）=K/(a–i*b)
QS=hm Sb（t（i）-tk）
Due to the coiling attribute constraint of heater, the temperature produced by heater will gradually decrease to tail by front end high temperature
End.Under the cold wind effect of flowing, front end high temperature inhaled by Q=Q puts capable cooling into, inhaled in tail end high-temperature gas by Q=Q puts
Heated, the thermal balance process of whole heater will smoothly be followed
Equation of heat balance：Q suctions=Q is put.
When wind speed V reaches certain value, the temperature △ t above whole ceramic body are close to that is evenly distributed because sensing is controlled
System, by the control of ceramic body operating temperature within 650C °, heating wire reaches long-life purpose away from 1100C ° of danger zone.
Claims (3)
1. the heater of portable gun welder, it is characterised in that：It includes ceramic body（1）, temperature sensor（2）, heating wire
（3）, ceramic bracket（4）, wherein, ceramic bracket（4）One end is connected with ceramic body（1）, heating wire（3）Twist coiling is in pottery
Porcelain body（1）Surface, power line（9）From ceramic bracket（4）The other end is penetrated and heating wire（3）Connection, ceramic body（1）Outer end end
Provided with temperature sensor（2）, sense leads（7）From ceramic bracket（4）The other end is penetrated and temperature sensor（2）It is connected.
2. the heater of portable gun welder according to claim 1, it is characterised in that：Ceramic body（1）In hollow circuit cylinder
One solidus glue of setting-in in four solidus glue grooves, every solidus glue groove is distributed with shape, cylindrical surface along its length
（8）, heating wire（3）Pass through solidus glue（8）It is fixed on ceramic body（1）Surface.
3. the heater of portable gun welder according to claim 1, it is characterised in that：Ceramic bracket（4）By inner ring and
Profile is constituted, and inner ring is located in outer shroud, is connected between endocyclic outer wall and profile inwall by connecting rib, inner ring inner chamber and adjacent
Air guide chamber is reserved between connection rib（5）, inner ring inner side, which is provided with, irons body core base body（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402998.9U CN206415741U (en) | 2016-12-21 | 2016-12-21 | The heater of portable gun welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402998.9U CN206415741U (en) | 2016-12-21 | 2016-12-21 | The heater of portable gun welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206415741U true CN206415741U (en) | 2017-08-18 |
Family
ID=59576639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402998.9U Active CN206415741U (en) | 2016-12-21 | 2016-12-21 | The heater of portable gun welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206415741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798659A (en) * | 2019-01-11 | 2019-05-24 | 广州市谊华电子设备有限公司 | A kind of heat gun |
-
2016
- 2016-12-21 CN CN201621402998.9U patent/CN206415741U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798659A (en) * | 2019-01-11 | 2019-05-24 | 广州市谊华电子设备有限公司 | A kind of heat gun |
| CN109798659B (en) * | 2019-01-11 | 2021-04-06 | 广州市谊华电子设备有限公司 | Hot air gun |
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