Hot air gun capable of displaying temperature and air speed

Abstract

The invention discloses a heat gun capable of displaying temperature and wind speed, which comprises shells, a heating air pipe structure, a power circuit board, a power line, a rear cover, a key circuit board and a digital display board, the two shells are symmetrically arranged and are installed by screws, the heating air pipe structure is clamped and installed in the two shells, and the power circuit board is connected with the power line. The power circuit board is installed in the shell in a clamped mode and electrically connected with the heating air pipe structure, the power line is installed on the power circuit board in a welded mode, the rear cover is installed on the shell, the key circuit board is installed on the rear cover in a clamped mode, and the digital display board is installed on the rear cover and the key circuit board through screws. The invention relates to the field of heat gun design, in particular to a heat gun capable of displaying temperature and wind speed.

Description

Technical Field

[0001] The present invention relates to the field of hot air gun design, and specifically refers to a hot air gun that displays temperature and wind speed. Background Art

[0002] A hot air gun is mainly a tool for welding and removing components by blowing hot air from the gun core with a heating resistance wire. Before use, it should be ensured that it is reliably grounded to prevent electrostatic damage to components on the tool. When turning on the power switch, the hot air gun should be preheated until the temperature is stable before welding. During use, the soldering iron part should be evenly heated 1 - 2 cm above the component and should not touch the component; during the desoldering process, pay attention to protecting the safety of surrounding components. Do not apply excessive force when installing the nozzle, and do not strike the workbench with the soldering iron part to give a strong impact to avoid damage to the heating wire and high-temperature glass. Be very careful during high-temperature operations. Do not use the hot air gun near flammable gases or flammable objects. Pay attention to personal safety. When replacing parts or leaving, turn off the power and wait for it to cool. If not used for a long time, the power plug should be unplugged. After the work is completed, turn off the power switch. At this time, the automatic cooling period starts, and the power plug should not be unplugged during the cooling period.

[0003] The hot air gun is one of the most commonly used tools in electronic maintenance, and the process requirements for its use are also very high. The hot air gun is used from removing or installing small components to large integrated circuits. In different situations, there are special requirements for the temperature and air volume of the hot air gun. Too low a temperature will cause poor soldering of components, and too high a temperature will damage the components and the circuit board. Too large an air volume will blow away small components.

[0004] Especially during the maintenance of some precision products, the temperature and wind speed of the hot air gun are important factors determining the maintenance effect. Summary of the Invention

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: The present invention is a hot air gun that displays temperature and wind speed, including a housing, a heating air duct structure, a power circuit board, a power cord, a rear cover, a button circuit board, and a digital display board. Two groups of the housings are symmetrically provided, and the two groups of housings are installed with screws. The heating air duct structure is snap-fitted and installed inside the two groups of housings. The power circuit board is snap-fitted and installed inside the housing and is electrically connected to the heating air duct structure. The power cord is welded and installed on the power circuit board. The rear cover is installed on the housing. The button circuit board is snap-fitted on the rear cover. The digital display board is installed on the rear cover and the button circuit board with screws.

[0006] Further, a heat insulation front cover is snap-fitted at the front end of the housing.

[0007] Further, it further includes a control circuit, and the control circuit includes a power supply module, a driving module, a control module, and a heating module. The driving module is electrically connected to the power supply module, the control module is electrically connected to the driving module, and the heating module is electrically connected to the driving module.

[0008] Further, a display circuit is electrically connected to the driving module, and the display circuit is electrically connected to the control module.

[0009] Further, a switch commutation circuit is electrically connected to the driving module, and the switch commutation circuit is electrically connected to the control module.

[0010] Further, a heating circuit is electrically connected to the driving module, and the heating circuit is electrically connected to the heating module.

[0011] Further, a motor circuit is electrically connected to the driving module, and the motor circuit is electrically connected to the heating module.

[0012] Preferably, the parts of the control circuit are reasonably installed on the heating air duct structure, the power circuit board, the button circuit board, and the digital display board according to the actual layout.

[0013] The beneficial effects obtained by the present invention with the above structure are as follows: Compared with the existing hot air gun technology, the display component of the hot air gun of the present invention can clearly see the actual temperature and wind speed, accurately adjust the temperature and control the speed for different occasions and uses, and avoid damage and non-compliance of components caused by temperature differences. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a hot air gun for displaying temperature and wind speed proposed by the present invention;

[0015] Figure 2 It is a module diagram of the control circuit of a hot air gun for displaying temperature and wind speed proposed by the present invention.

[0016] Wherein, 1. Housing, 2. Heating air duct structure, 3. Power circuit board, 4. Power cord, 5. Rear cover, 6. Button circuit board, 7. Digital display board, 8. Anti-scald front cover. Detailed Embodiment

[0017] Such as Figure 1As shown in the figure, the present invention is a hot air gun for displaying temperature and wind speed, which includes a housing 1, a heating air duct structure 2, a power circuit board 3, a power cord 4, a rear cover 5, a button circuit board 6 and a digital display board 7. There are two groups of symmetrically arranged housings 1, and the two groups of housings 1 are installed with screws. The heating air duct structure 2 is snap-fitted and installed inside the two groups of housings 1. The power circuit board 3 is snap-fitted and installed inside the housing 1 and is electrically connected to the heating air duct structure 2. The power cord 4 is welded and installed on the power circuit board 3. The rear cover 5 is installed on the housing 1. The button circuit board 6 is snap-fitted on the rear cover 5. The digital display board 7 is installed on the rear cover 5 and the button circuit board 6 with screws. There are through holes on the digital display board 7, and the buttons on the button circuit board 6 pass through the through holes. A heat-insulating front cover 8 is snap-fitted at the front end of the housing 1.

[0018] As Figure 2 shown, it further includes a control circuit, and the control circuit includes a power supply module, a driving module, a control module and a heating module. The driving module is electrically connected to the power supply module, the control module is electrically connected to the driving module, and the heating module is electrically connected to the driving module.

[0019] An indicating circuit is electrically connected to the driving module, and the indicating circuit is electrically connected to the control module. A switch commutation circuit is electrically connected to the driving module, and the switch commutation circuit is electrically connected to the control module. A heating circuit is electrically connected to the driving module, and the heating circuit is electrically connected to the heating module. A motor circuit is electrically connected to the driving module, and the motor circuit is electrically connected to the heating module.

[0020] During specific use: Insert the power cord 4 into the plug, install the front cover 8, adjust the button circuit board 6 according to actual needs, adjust the wind speed and temperature, and the specific values will be displayed on the digital display board 7, then it can work.

[0021] It should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot air gun that displays temperature and wind speed, characterized in that: It includes a shell, a heating duct structure, a power circuit board, a power cord, a back cover, a key circuit board and a digital display board. The shell is symmetrically provided with two groups, and the two groups of shells are installed using screws. The heating duct structure is snap-fitted and installed in the two groups of shells. The power circuit board is snap-fitted and installed in the shell and is electrically connected to the heating duct structure. The power cord is welded and installed on the power circuit board. The back cover is installed on the shell, the key circuit board is snap-fitted on the back cover, and the digital display board is installed on the back cover and the key circuit board by screws.

2. A hot air gun that displays temperature and wind speed according to claim 1, characterized in that: The front end of the shell is clamped with an anti-scalding front cover.

3. A hot air gun that displays temperature and wind speed according to claim 1, characterized in that: It also includes a control circuit, which includes a power module, a driving module, a control module and a heating module. The driving module is electrically connected to the power module, the control module is electrically connected to the driving module, and the heating module is electrically connected to the driving module.

4. A hot air gun that displays temperature and wind speed according to claim 3, characterized in that: The driving module is electrically connected with a display circuit, and the display circuit is electrically connected to the control module.

5. A hot air gun that displays temperature and wind speed according to claim 4, characterized in that: The driving module is electrically connected with a switch switching circuit, and the switch switching circuit is electrically connected to the control module.

6. A hot air gun that displays temperature and wind speed according to claim 3, characterized in that: The driving module is electrically connected with a heating circuit, and the heating circuit is electrically connected to the heating module.

7. A hot air gun that displays temperature and wind speed according to claim 6, characterized in that: The driving module is electrically connected with a motor circuit, and the motor circuit is electrically connected to the heating module.

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