CN201163107Y - Temperature and air quantity control device of hot air gun - Google Patents
Temperature and air quantity control device of hot air gun Download PDFInfo
- Publication number
- CN201163107Y CN201163107Y CNU2008200821427U CN200820082142U CN201163107Y CN 201163107 Y CN201163107 Y CN 201163107Y CN U2008200821427 U CNU2008200821427 U CN U2008200821427U CN 200820082142 U CN200820082142 U CN 200820082142U CN 201163107 Y CN201163107 Y CN 201163107Y
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- Prior art keywords
- circuit
- temperature
- air quantity
- difference comparison
- comparison circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a temperature and air volume control device for a hot air gun, which comprises a round PCB board provided with a CPU, a temperature control unit and an air volume control unit which are packaged by adopting SOP, a fan motor and a heating element, wherein, a power supply is connected with the PCB board which is respectively connected with the fan motor and the heating element; the temperature control unit comprises a pushbutton temperature circuit, a liquid crystal temperature display circuit, a temperature sensing and amplifying circuit, a bidirectional difference comparison circuit, and a power control circuit; the air volume control unit comprises an air volume setting circuit, a liquid crystal air volume display circuit, a bidirectional difference comparison circuit, and a power control circuit; the temperature sensing and amplifying circuit is connected with the bidirectional difference comparison circuit, one end of the CPU is connected with a pushbutton setting circuit, the other end of the CPU is connected with the bidirectional difference comparison circuit, and the bidirectional difference comparison circuit is connected with the power control circuit. The device has the characteristics of reasonable structure, steady and reliable working performance, convenient use, high temperature and air volume adjustment accuracy and so on.
Description
Technical field
The utility model relates to a kind of small-sized electric instrument, especially relates to a kind of temperature and air quantity controller of heat gun.
Background technology
Heat gun now can be used for getting the various integrated chips of weldering, molten tin, thaws, paint removal, collapsible tube heating, the experimental ware universe is clean, liquid changes heat, catalysis binder, shrink wrapping, soften sheet, carpet sews up etc., along with the purposes of heat gun is increasingly extensive, to the demands for higher performance of heat gun.The normal operating temperature range error ratio of domestic common heat gun is bigger, and the temperature control degree of accuracy is low, lacks air quantity control, also the someone has produced the heat gun of symbol and European market standard, be provided with air quantity control function, but equally exist the fluctuation of air quantity scope big, the problem that control accuracy is low.
Summary of the invention
The utility model mainly is to solve the technical problem of existing in prior technology to temperature and the accurate control of air quantity shortage etc., and another purpose of the present utility model provides a kind of heater element safely and effectively simple for structure.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the temperature of heat gun and air quantity controller comprise a circular pcb board that is provided with the CPU that adopts the SOP encapsulation, temperature control unit, air quantity control module, air supply motor and heater element; Power supply connection PCB plate, pcb board connects air supply motor and heater element respectively; Described temperature control unit comprises button temperature circuit, liquid crystal temperature display circuit, TEMP and amplifying circuit, two-way difference comparison circuit, power control circuit; Described air quantity control module comprises air quantity initialization circuit, liquid crystal air quantity display circuit, two-way difference comparison circuit, power control circuit; Described TEMP and amplifying circuit connect two-way difference comparison circuit, CPU one termination button settings circuit, and the two-way difference comparison circuit that connects of the other end, the difference comparison circuit connects power control circuit.
CPU is according to from the temperature setting signal of button temperature circuit, the heating power of control and regulation heater element, and temperature setting signal is delivered to the liquid crystal temperature display circuit set value with displays temperature; The air quantity initialization circuit is controlled the air quantity size of blower fan simultaneously, and is shown the gear of fan delivery by liquid crystal air quantity display circuit; Two-way difference comparison circuit is the operating temperature signal of heater element that TEMP and amplifying circuit are recorded and temperature control signals from CPU carries out difference relatively to generate difference signal; Power control circuit controls to adjust the heating power of heater element again according to the difference signal from two-way difference comparison circuit.
Cpu circuit adopts the CPU of SOP encapsulation, than Naked sheet good in anti-interference performance, adopt the stable performance of inner RC oscillator, the SoP encapsulation is by adopting the system in package of embedding film RF, optical digital and sensing assembly, make single encapsulation realize the target of multifunction system, and make component density reach 2, more than the 500/cm2.Adopt the new method of this system integration, not only can realize miniaturization, but also reduced cost and the reliability that has improved performance and system.
The utility model is provided with holding circuit; can realize power-off protection, thermocouple protection, fan trouble protection, heater element error protection: behind accident power-off, can control electronic circuit by CPU; cutting off the electricity supply avoids damaging with the protection entire circuit, shows on LCD that simultaneously the flicker corresponding icon is as warning.For example when galvanic couple damaged cisco unity malfunction, temperature showed that flicker is as reporting to the police on LCD; When the fan electromotor cisco unity malfunction, the flicker of fan icon is as reporting to the police on LCD; When the heating wire cisco unity malfunction, all icon flicker conduct is reported to the police on LCD; When sending a telegram here, machine can not worked immediately again, behind any button of necessary shake-up, could start shooting, and can guarantee the machine safe handling.
As preferably, be provided with memory circuit in the two-way difference comparison circuit in the utility model, memory circuit is connected with CPU, order the utlity model has temperature and air quantity memory function, by CPU control electronic circuit, when starting shooting behind the power cut-off, machine can be in the duty before the outage again.
Heater element comprises ceramics bracket, some heating wires, control line, ceramics bracket is formed by some potsherd combined crosswise, equidistantly on the potsherd have some guide channels, heating wire is made spirality and is wrapped on the ceramics bracket in the helix mode, control line is connected one to one with heating wire, the spiral external diameter of heating wire is half of guide channel radial depth on the potsherd, and the distance of fluting datum line and potsherd center line is not less than 2 times of spiral external diameter of described heating wire on the potsherd.The shape of guide channel on the described potsherd can be a triangle or trapezoidal, also can be the shape of arc and straight line combination.
The utility model adopts a pcb board, and components and parts are relatively concentrated, and it is little to take up room, and temperature can rise continuously or descend continuously, and air quantity also can divide retaining adjustment.
Therefore, the utlity model has characteristics such as rational in infrastructure, stable and reliable working performance, easy to use, temperature and air quantity degree of regulation height.
Description of drawings
Accompanying drawing 3 is TEMP and amplifying circuit schematic diagrams in the utility model;
Accompanying drawing 5 is that two-way difference relatively reaches the memory circuit schematic diagram in the utility model;
Accompanying drawing 6 is power control and holding circuit schematic diagrams in the utility model;
Accompanying drawing 8 is a kind of schematic cross-sections of heater element in the utility model;
Accompanying drawing 9 is a kind of three-dimensional assembling schematic diagrames of heater element in the utility model;
Accompanying drawing 10 is a kind of structural representations of heater element in the utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the temperature of heat gun and air quantity controller comprise a circular pcb board 1, air supply motor 2 and heater element 3; Power supply 4 connection PCB plates 1, pcb board 1 connects air supply motor 2 and heater element 3 respectively; Pcb board 1 is provided with CPU5, temperature control unit, the air quantity control module that adopts the SOP encapsulation.Described temperature control unit comprises button temperature circuit 7, liquid crystal temperature display circuit 6, TEMP and amplifying circuit 10, two-way difference comparison circuit 9, power control circuit 11; Described air quantity control module comprises air quantity initialization circuit 8, liquid crystal air quantity display circuit 6, two-way difference comparison circuit 9, power control circuit 11; Described TEMP and amplifying circuit 10 connect two-way difference comparison circuit 9, CPU5 one termination button temperature circuit 7, and the two-way difference comparison circuit 9 that connects of the other end, two-way difference comparison circuit 9 connects power control circuit 11; CPU5 also is connected with holding circuit 12 and memory circuit 13.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection domain of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. the temperature of a heat gun and air quantity controller is characterized in that described control device comprises a circular pcb board that is provided with the CPU that adopts the SOP encapsulation, temperature control unit, air quantity control module, air supply motor and heater element; Power supply connection PCB plate, pcb board connects air supply motor and heater element respectively.
2. the temperature of a kind of heat gun according to claim 1 and air quantity controller is characterized in that described temperature control unit comprises button temperature circuit, liquid crystal temperature display circuit, TEMP and amplifying circuit, two-way difference comparison circuit, power control circuit; Described air quantity control module comprises air quantity initialization circuit, liquid crystal air quantity display circuit, two-way difference comparison circuit, power control circuit; Described TEMP and amplifying circuit connect two-way difference comparison circuit, CPU one termination button settings circuit, and the other end is two-way to connect two-way difference comparison circuit, and two-way difference comparison circuit connects power control circuit.
3. the temperature of a kind of heat gun according to claim 1 and 2 and air quantity controller is characterized in that having holding circuit, are the inputs that is connected in output circuit.
4. the temperature of a kind of heat gun according to claim 1 and 2 and air quantity controller is characterized in that described two-way difference comparison circuit is provided with memory circuit, and memory circuit is connected with CPU.
5. the temperature of a kind of heat gun according to claim 1 and 2 and air quantity controller, it is characterized in that having the alarm indication circuit, when output circuit generation mistake, heater element fault, fan trouble or thermocouple damage cisco unity malfunction, can accept the signal that CPU sends, and show that on LCD the flicker corresponding icon is as warning.
6. the temperature of a kind of heat gun according to claim 1 and 2 and air quantity controller, it is characterized in that described heater element comprises ceramics bracket, some heating wires, control line, ceramics bracket is formed by some potsherd combined crosswise, equidistantly on the potsherd have some guide channels, heating wire is made spirality and is wrapped on the ceramics bracket in the helix mode, control line is connected one to one with heating wire, the spiral external diameter of heating wire is half of guide channel radial depth on the potsherd, and the distance of fluting datum line and potsherd center line is not less than 2 times of spiral external diameter of described heating wire on the potsherd.
7. according to the temperature and the air quantity controller of claim 1 or 2 described a kind of heat guns, it is characterized in that the shape of guide channel on the described potsherd, can be triangle or trapezoidal, also can be the shape of arc and straight line combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200821427U CN201163107Y (en) | 2008-01-15 | 2008-01-15 | Temperature and air quantity control device of hot air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200821427U CN201163107Y (en) | 2008-01-15 | 2008-01-15 | Temperature and air quantity control device of hot air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163107Y true CN201163107Y (en) | 2008-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200821427U Expired - Lifetime CN201163107Y (en) | 2008-01-15 | 2008-01-15 | Temperature and air quantity control device of hot air gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163107Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907357A (en) * | 2009-06-05 | 2010-12-08 | 上海宝田新型建材有限公司 | Distributed control system (DCS) control method capable of improving safety of airheater |
| CN103264203A (en) * | 2013-05-23 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | Hot air gun |
| CN103538759A (en) * | 2013-10-14 | 2014-01-29 | 王斌 | Special pneumatic unsealing tool |
| CN104345642A (en) * | 2013-07-25 | 2015-02-11 | 南京德朔实业有限公司 | Electric tool and control method thereof |
| 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 |
| CN104729074A (en) * | 2015-04-15 | 2015-06-24 | 柳州凯通机械有限公司 | Hot air blower |
-
2008
- 2008-01-15 CN CNU2008200821427U patent/CN201163107Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907357A (en) * | 2009-06-05 | 2010-12-08 | 上海宝田新型建材有限公司 | Distributed control system (DCS) control method capable of improving safety of airheater |
| CN101907357B (en) * | 2009-06-05 | 2012-11-21 | 上海宝田新型建材有限公司 | Distributed control system (DCS) control method capable of improving safety of airheater |
| CN103264203A (en) * | 2013-05-23 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | Hot air gun |
| CN104345642A (en) * | 2013-07-25 | 2015-02-11 | 南京德朔实业有限公司 | Electric tool and control method thereof |
| CN104345642B (en) * | 2013-07-25 | 2017-02-08 | 南京德朔实业有限公司 | Electric tool and control method thereof |
| CN103538759A (en) * | 2013-10-14 | 2014-01-29 | 王斌 | Special pneumatic unsealing tool |
| CN103538759B (en) * | 2013-10-14 | 2015-12-23 | 王斌 | Extraordinary pneumatic Kaifeng instrument |
| 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 |
| CN104729074A (en) * | 2015-04-15 | 2015-06-24 | 柳州凯通机械有限公司 | Hot air blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Prolde Electric Equipment Co., Ltd. Assignor: Han Changhong Contract record no.: 2010330001120 Denomination of utility model: Temperature and air quantity control device of hot air gun Granted publication date: 20081210 License type: Exclusive License Record date: 20100613 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PRULDE ELECTRIC CO., LTD. Free format text: FORMER OWNER: HAN ZHANGHONG Effective date: 20100927 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 321035 TO: 321035 ZHEJIANG PRULDE ELECTRIC CO., LTD. INDUSTRIAL PARK, XIAOSHUN TOWN, JINHUA CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100927 Address after: 321035 Zhejiang province Jinhua City filial town Industrial Development Zone Zhejiang prulde Electric Appliance Co. Ltd. Patentee after: Zhejiang Prolde Electric Equipment Co., Ltd. Address before: 321035 filial piety Town Industrial Development Zone, Zhejiang, Jinhua Patentee before: Han Changhong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |