Heat gun

A hot air gun and hot air tube technology, applied in the field of hot air guns, can solve the problems of inconvenient operation, use, unreliable fixation, long moving stroke, etc., and achieve the effects of improving the safety of use, facilitating accurate operation, and improving the indication function

Active Publication Date: 2017-11-24
ZHEJIANG PRULDE ELECTRIC APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature display on the existing heat gun cannot effectively reflect the temperature of the heated object
When the distance between the heat gun and the heated object is large, the temperature of the heated object is low, the heating effect is poor, and the efficiency is low
When the distance between the heat gun and the heated object is small, the temperature of the heated object is high, which may cause the heated object to melt, cause a fire or other physical/chemical changes, and the operation safety is low
[0004] In addition, the existing heat gun generally adopts a linear shift structure or a push-button shift structure. When there are many wind gears, the linear shift structure has a long moving stroke, and the push-button

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1 to Figure 9 As shown, the heat gun provided by Embodiment 1 of the present invention includes a casing 1 , and a main control board 2 , a hot air device 3 , a temperature detection device 4 , a heating indicating device 5 and a knob 6 are arranged in the casing. Shell 1 comprises left shell 11, right shell 12 and top shell 13 that are fixed together, and the bottom of left shell and the bottom of right shell are all provided with integrally formed handle shell 14, and the handle shell of both sides Combined to form a handle, the handle is provided with a main switch 15 for switching on or cutting off the power supply, and the left housing and the right housing are provided with air inlets. The upper part of the left housing, the upper part of the right housing and the top housing are combined to form a housing chamber, the main control board 2, the hot air device 3, the temperature detection device 4, the heating indicating device 5 and the knob 6 are ...

Embodiment 2

[0072] The difference between the second embodiment of the present invention and the first embodiment above is that the main control board 2 is further provided with capacitors. After the hot air blower cuts off the power supply, the capacitor can supply power for a short time to the main control board 2 and the heating indicating device 5 . When the hot air blower is powered off, the residual temperature of the heating component 36 is high. When the residual temperature of the heating component exceeds a certain range, the command indicator light 52 of the main control board 2 will flash to remind the user to pay attention to avoid the user being burned by the residual temperature of the heating component. Or place the potential safety hazards of the hot air gun at will to improve the safety of use.

Embodiment 3

[0074] The difference between Embodiment 3 of the present invention and Embodiment 1 above is that the detection circuit board 41 is also provided with a laser head for positioning the detection position of the temperature detection device. The laser head can accurately locate and detect the specific position of the heated object, further ensuring the accuracy of the temperature detection device during detection, thereby better ensuring the heating effect of the heat gun on the heated object.

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PUM

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Abstract

The invention discloses a heat gun, and belongs to the technical field of mechanical heating equipment. The heat gun comprises a shell, a main control board and a heat device; the heat device comprises a heating module, a fan and a motor; the shell is provided with a heat tube; the heating module is arranged in the heat tube; the heating module and the motor are both electrically connected to the main control board; a temperature detecting device and a heating indication device are arranged in the shell; the temperature detecting device comprises a detecting circuit board and an infrared detecting head; the heating module is provided with a detecting channel for enabling the infrared detecting head to receive external infrared radiation energy; and the heating indication device comprises a control substrate and an indicating lamp. Through the effects of the temperature detecting device and the heating indication device, a proper distance can be kept between the heat gun and a heated object, so that the heated object is located in a proper heated state, the potential safety hazard of melting or firing of the heated object caused by unknown or uncontrollable heating temperature is prevented, the heating effect is guaranteed, and the use safety is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical heating equipment, in particular to a heat gun. Background technique [0002] A heat gun is a heating tool used to heat air to form a hot air flow. It has a variety of functions. Specifically, a heat gun can be used to remove old paint on metal surfaces, remove self-adhesive stickers, heat plastic hoses to bend them, Drying wet wood, heating shrinkage of packaging film and packaging tube, rust removal, heating shrinkage of polyethylene used to connect metals and heating softening of welds, etc., can also use the hot air blown from the gun core of the heating resistance wire Solder or remove components. [0003] Existing heat guns are generally provided with a temperature display for displaying the temperature of the hot air blown out by the heat gun, which is convenient for users to understand the working conditions of the heat gun. However, the temperature display on the existing heat gun ca...

Claims

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Application Information

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IPC IPC(8): F24H3/04F24H9/20
CPCF24H3/0423F24H9/2071
Inventor 韩挺杨伟明
Owner ZHEJIANG PRULDE ELECTRIC APPLIANCE CO LTD
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