CN201569148U - Digital display thermoregulation hot air gun - Google Patents
Digital display thermoregulation hot air gun Download PDFInfo
- Publication number
- CN201569148U CN201569148U CN2009201973489U CN200920197348U CN201569148U CN 201569148 U CN201569148 U CN 201569148U CN 2009201973489 U CN2009201973489 U CN 2009201973489U CN 200920197348 U CN200920197348 U CN 200920197348U CN 201569148 U CN201569148 U CN 201569148U
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- digital display
- temperature
- circuit board
- thermoregulation
- switch
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Abstract
The utility model relates to a digital display thermoregulation hot air gun, which comprises a motor, fan blades, an air pipe, a switch and a heating element that are arranged in an enclosure, wherein a thermoregulation device is connected on the heating element and consists of a rear cover, a screen and a thermoregulation circuit board; the front end of the heating element is placed with a thermocouple temperature probe; a digital display device is formed by the thermocouple temperature probe as well as a digital circuit board and a liquid crystal display in the enclosure; the screen and the rear cover in the thermoregulation device are matched with each other; the center of the screen is embedded with the handle of a regulator potentiometer in a thermoregulation circuit; the thermocouple temperature probe in the digital display device is connected with the input end of the digital circuit board; the output end of the digital circuit board is connected with the liquid crystal display; an analog-to-digital conversion chip is arranged on the digital circuit board; a temperature fuse is arranged in the heating element, so as to prevent the spontaneous combustion caused by over high temperature; the switch has three grades, wherein the I grade is the lowest grade, and the II grade is that the temperature can be continuously and regulated from 80-600 DEG C in a stepless manner. The hot air gun has intuitive use and can accurately control the heating temperature.
Description
Technical field
The utility model relates to a kind of electric tool---heat gun, especially a kind of have the digital display temperature regulating function be usually used in bending plastic pipe, nonmetal joint weld, removing paint etc. need be to the heating of some body surface.
Background technology
Existing heat gun generates heat by heater element, by the transhipment of driven by motor fan blade, the hot blast in the rifle body is sent, and is used for some body surface heat treated.In general the operating temperature of heat gun all realizes by regulator potentiometer, the user often can only adjust the position of potentiometer to set its corresponding work temperature according to practical experience, yet, temperature value is held than difficulty often in real work, sometimes, in use, the influence of the temperature characterisitic of thermoregulation circuit element, make the operating temperature instability of heater element, thereby strengthened the difficulty of temperature adjusting.And for the higher occasion of temperature control requirement, existing have only high and low two the retaining temperature adjustings can not satisfy instructions for use and result of use.For this reason, someone invents " circuit arrangement of heat gun and method of work thereof ", as Chinese patent on August 29th, 2007 disclosed " CN101026906 ", in this circuit arrangement, temperature control circuit adopts single-chip microcomputer to control, adopt the operating temperature value of the heater element of liquid crystal display circuit display setting directly perceived simultaneously, numerous difficult enforcement yet entire circuit seems again.
Summary of the invention
The purpose of this utility model is defective and the deficiency at existing heat gun, for some body surface heating provides a kind of temperature easy-regulating, digital display temperature regulating heat gun easy for operation.
The technical measures that the utility model is taked for achieving the above object are: this digital display temperature regulating heat gun comprises motor, fan blade, airduct, switch and the heater element that is contained in the casing, on heater element, connect a register, this register is made up of bonnet, guard and thermoregulation circuit plate, place a thermocouple temperature probe at the front end of described heater element, this thermocouple temperature probe has been formed digital display device with digital display circuit board, LCDs.
Regulator potentiometer handle embedding mutually in guard in the described register and the bonnet tight fit, guard center and thermoregulation circuit plate.
The input of thermocouple temperature probe in the described digital display device and digital display circuit board joins, and the output and the LCDs of digital display circuit board join, and analog-to-digital chip is housed on the digital display circuit board.
Described heater element is made up of the main heating resistance wire of dish in cylindrical shape electronic ceramics dish inboard wall groove and the secondary heating resistance wire that is wound on electronic ceramics pipe dish.
In the described housing switching circuit board is housed, diode that rectification uses and switch, secondary heating resistance wire are housed on switching circuit board, band is plugged in power line and the switching circuit plate joins.
Described switch is provided with three gears, and " 0 " retaining is closed down, and " I " gear of switch is nonadjustable minimum temperature retaining, and " II " gear temperature of switch can be from 80 ℃ of-600 ℃ of stepless temperature-regulatings.
When the utility model places " I " retaining when switch, only secondary heating resistance wire heating in the heater element, output temperature is 80 ℃, when switch places " II " retaining, major and minor heating resistance wire heats simultaneously, when by heat gun bonnet rotation, drive the regulator potentiometer on guard and the thermoregulation circuit plate, make on the thermoregulation circuit plate controllable silicon output voltage stepless adjustable in the 0-220VAc scope.After the temperature stack of two groups of resistance wire generations, the air outlet hot blast temperature can be implemented in the step-less adjustment in 80 ℃～600 ℃ scopes, and intuitively reflects draught temperature on LCDs, has simple in structure, convenience operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the rearview of Fig. 1.
Reference numeral: 1-guard, 2-bonnet, 3-thermoregulation circuit plate, 4-casing, 5-motor, 6-digital display circuit board, 7-fan blade, 8-air-ducting ring, 9-airduct seat, 10-heater element, 11-artificial mica, the secondary heating resistance wire of 12-, 13-thermocouple temperature probe, 14-airduct, 15-switching circuit board, 16-switch, 17-band are plugged in power line, 18-modulus conversion chip, 19-LCDs.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model is a kind of digital display temperature regulating heat gun, it comprise be installed in the casing by motor 5, fan blade 7, airduct 14, switch 16 and heater element 10.Fan blade 7 is contained in the rotating shaft of motor 5, is trumpet-shaped air-ducting ring 8 its horn mouths and covers fan blade, and its osculum and airduct seat 9 fix, and above-mentioned airduct 14 directly is fixed on the airduct seat 9.Separate with artificial mica 11 between airduct 14 and the above-mentioned heater element 10, artificial mica 11 plays insulating effect, thereby prevents the airduct 14 charged users' of influence personal safety.Be connected with register on heater element 10, this register is made up of thermoregulation circuit plate 3, bonnet 2, guard 1.Electronic circuit on the thermoregulation circuit plate 3 is common silicon-controlled voltage regulation circuit, and its principle is not repeated here.Be embedded on the handle of potentiometer on the regulating circuit plate after above-mentioned guard and the bonnet tight fit, rotation bonnet 2 drives guards can make in the regulating circuit plate controllable silicon output voltage by changing in 0～220VAc scope.Place a thermocouple temperature probe 13 at above-mentioned heater element 10 front ends, digital display circuit board 6, LCDs 19 in it and the casing 4 have been formed digital display device.Thermocouple temperature probe 13 in digital display device joins with the input of digital display circuit board 6, and the output of digital display circuit board 6 and LCDs 19 join, and analog-to-digital chip 18 is housed on the above-mentioned digital display circuit board.Thermocouple temperature probe 13 conducts to digital display circuit board 6 according to the analog electrical signal that the actual temperature of heating resistive element 10 front ends records, the modulus conversion chip 18 that is positioned on the digital display circuit board becomes data signal with analog signal conversion, by demonstrating actual temperature in the LCDs.
Formed heater element 10 by dish at the main heating resistance wire of cylindrical shape electronic ceramics inboard wall groove with the lower-powered secondary heating resistance wire 12 that is wound on cylindrical shape electronic ceramics outside.Described switch 16 is provided with three gears, and " 0 " retaining is closed down, and " I " gear of switch 16 is nonadjustable minimum temperature retaining, and " II " gear temperature of switch 16 can be from 80 ℃ of-600 ℃ of stepless temperature-regulatings.When 16 groups on switch when " 0 ", be to close stop block.When 16 groups on switch when " I " keeps off, only secondary heating resistance wire 12 energising heating, the air outlet temperature stabilization is about 80 ℃.When 16 groups on switch when " II " keeps off, major and minor heating resistance wire heats simultaneously, main heating resistance wire two ends are connected on controllable silicon output two ends in the thermoregulation circuit plate 3 respectively, and heating temp raises with the rising of controllable silicon output voltage, and the temperature that stacks up reaches as high as 600 ℃.
When motor 5 energisings, be fixed on that fan blade 7 rotates thereupon on the motor output shaft, produce negative pressure in the digital display temperature regulating heat gun, the outer air of heat gun is inhaled in the heat gun by guard, because the effect of air-ducting ring 8 becomes hot blast from 14 mouthfuls of discharges of airduct behind the cylindrical shape electronic ceramics pipe of inhaled air by the heating of having switched in the airduct.
Heat gun causes internal temperature overheated because of electrical fault or working face and air port hypotelorism in order effectively to prevent to use, be provided with temperature fuse in the heater element 10, can avoid heat gun to burn out like this, solve the safety problem that causes because of temperature overheating in the use.
Secondary heating resistance wire 12 not only plays heat effect, also plays hypotensive effect.Through secondary heating resistance wire step-down, again through adding to after the rectifies on the switching circuit slope 15, the filtering on the direct current generator 5, motor 5 is rotated, also be added on thermoregulation circuit plate 3, the digital display circuit board 5 simultaneously, as the working power of thermoregulation circuit plate, digital display circuit board.
During actual the use, the band on the digital display temperature regulating heat gun is plugged in power line 17 plug commercial power socket, switch 16 is in " 0 " retaining, and the digital display temperature regulating heat gun is in the state of closing down.When switch 16 pushes " I " retaining, at this moment only secondary resistive heater 12 heating, motor 5 drives fan blade 7 and rotates, make and produce negative pressure in the heat gun, the outer orifice flow of air on guard of heat gun gone in the heat gun, by becoming hot blast behind the columnar electronic ceramics pipe in the heater element 10, discharge from 14 mouthfuls of airducts by hot blast after air-ducting ring 8 for air.Thermocouple temperature probe 13 converts the actual temperature analog signal of heater element 10 front ends that measure to data signal by the modulus conversion chip on the digital display circuit board 6 18, demonstrates actual temperature about 80 ℃ by LCDs 19.Equally, when switch 16 pushes " II " retaining, not only secondary resistive heater 12 heating, main resistive heater also heats, rotation bonnet 2 drives guard 1 rotates the potentiometer on the thermoregulation circuit plate 3, to regulate controllable silicon output voltage on the thermoregulation circuit plate, make the voltage that is added on the main heating resistance wire stepless adjustable from 0-220vAc, the heat stack that heat that main heating resistance wire produces and secondary heating resistance wire produce, the hot blast temperature of realizing airduct 14 outlets is adjustable from 80 ℃ of-600 ℃ of continuous stepless, shows on LCDs equally.
Claims (7)
1. digital display temperature regulating heat gun, it comprises motor (5), fan blade (7), airduct (14), switch (16) and the heater element (10) that is contained in the casing (4), it is characterized in that being connected with register on the described heater element (10), this register is made up of bonnet (2), guard (1) and thermoregulation circuit plate (3), place a thermocouple temperature probe (13) at the heater element front end, digital display circuit board (6), LCDs (19) in it and the casing (4) have been formed digital display device.
2. digital display temperature regulating heat gun according to claim 1 is characterized in that above-mentioned guard (1) and bonnet (2) tight fit in the described register, the regulator potentiometer handle embedding mutually in described guard (1) center and the thermoregulation circuit plate (3).
3. digital display temperature regulating heat gun according to claim 1, it is characterized in that the thermocouple temperature probe (13) in the described digital display device is placed on the front end of above-mentioned heater element (10), and join with the input of above-mentioned digital display circuit board, the output of digital display circuit board and LCDs (19) join, and analog-to-digital chip (18) is housed on the digital display circuit board.
4. according to claim 1 or 2 or 3 described digital display temperature regulating heat guns, it is characterized in that described heater element (10) by dish in cylindrical shape electronic ceramics dish inboard wall groove main heating resistance wire and the secondary heating resistance wire (12) that is wound on electronic ceramics dish periphery form.
5. digital display temperature regulating heat gun according to claim 4 is characterized in that being equipped with temperature fuse in described heater element (10), causes spontaneous combustion to prevent the heat gun overtemperature.
6. digital display temperature regulating heat gun according to claim 5, it is characterized in that switching circuit plate (15) is housed in the described housing (4), diode, switch (16), secondary heating resistance wire (12) and band that rectification uses are housed on described switching circuit plate (15) plug in power line (17) and join with switching circuit plate (15).
7. digital display temperature regulating heat gun according to claim 5, it is characterized in that described switch (16) is provided with three gears, " 0 " retaining is closed down, and " I " gear of switch (16) is nonadjustable minimum temperature retaining, " II " gear temperature of switch (16) can be from 80 ℃ of-600 ℃ of stepless temperature-regulatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201973489U CN201569148U (en) | 2009-09-23 | 2009-09-23 | Digital display thermoregulation hot air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201973489U CN201569148U (en) | 2009-09-23 | 2009-09-23 | Digital display thermoregulation hot air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569148U true CN201569148U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201973489U Expired - Fee Related CN201569148U (en) | 2009-09-23 | 2009-09-23 | Digital display thermoregulation hot air gun |
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| CN (1) | CN201569148U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134191A (en) * | 2011-11-21 | 2013-06-05 | 莱丹科技股份公司 | Hand-held hot air device with a digital operating device with a universal operating element |
| CN104534649A (en) * | 2014-12-31 | 2015-04-22 | 西安泰力松新材料股份有限公司 | Heat gun and heat gun system |
| CN107027198A (en) * | 2016-02-01 | 2017-08-08 | 金华市金顺工具有限公司 | A kind of ceramic heating core of hot air gun component |
| CN107655206A (en) * | 2017-08-21 | 2018-02-02 | 浙江普莱得电器有限公司 | A kind of heat gun of detectable temperature |
| EP2677247A3 (en) * | 2012-06-18 | 2018-03-21 | Steinel GmbH | Handheld hot air device |
| CN108168094A (en) * | 2017-11-13 | 2018-06-15 | 浙江普莱得电器有限公司 | A kind of accurate heat gun of thermometric |
| WO2018198014A1 (en) * | 2017-04-24 | 2018-11-01 | Townsend Darlene Suzanne | Crisping wand system and method |
-
2009
- 2009-09-23 CN CN2009201973489U patent/CN201569148U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134191A (en) * | 2011-11-21 | 2013-06-05 | 莱丹科技股份公司 | Hand-held hot air device with a digital operating device with a universal operating element |
| CN103134191B (en) * | 2011-11-21 | 2016-02-10 | 莱丹科技股份公司 | There is the hand-held hot air device of the digit manipulation device of band general operation parts |
| EP2677247A3 (en) * | 2012-06-18 | 2018-03-21 | Steinel GmbH | Handheld hot air device |
| CN104534649A (en) * | 2014-12-31 | 2015-04-22 | 西安泰力松新材料股份有限公司 | Heat gun and heat gun system |
| CN107027198A (en) * | 2016-02-01 | 2017-08-08 | 金华市金顺工具有限公司 | A kind of ceramic heating core of hot air gun component |
| CN107027198B (en) * | 2016-02-01 | 2023-05-23 | 金华市金顺工具有限公司 | Ceramic heating core assembly of hot air gun |
| WO2018198014A1 (en) * | 2017-04-24 | 2018-11-01 | Townsend Darlene Suzanne | Crisping wand system and method |
| CN107655206A (en) * | 2017-08-21 | 2018-02-02 | 浙江普莱得电器有限公司 | A kind of heat gun of detectable temperature |
| CN108168094A (en) * | 2017-11-13 | 2018-06-15 | 浙江普莱得电器有限公司 | A kind of accurate heat gun of thermometric |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20170923 |