Hot air gun capable of automatically controlling temperature

Abstract

The utility model discloses a hot air gun with automatic temperature control, and relates to the technical field of hot air guns, the hot air gun comprises a hot air gun body, a grip and an air inlet, the grip is arranged at the lower end of the hot air gun body, the air inlet is arranged on the left side of the hot air gun body, and an air supply assembly is arranged in the hot air gun body. The right side of the hot air gun body is connected with an air pipe, a heating wire is arranged in the air pipe, a heat dissipation assembly is arranged on the outer side of the air pipe, an air outlet is formed in the right side of the air pipe, and a rotary drum is rotationally arranged on the right side of the air pipe. When the temperature sensor detects that the hot air temperature at the air outlet is different from the set temperature, the power of the heating wire is changed in time, free control over the temperature of the hot air gun is achieved, the opening size of the heat dissipation opening is adjusted by moving the heat insulation sleeve on the air pipe, the temperature in the air pipe is rapidly adjusted, and the heat dissipation efficiency is improved. And the heat insulation sleeve can prevent the heated air pipe from influencing the surroundings.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air guns, in particular to a hot air gun with automatic temperature control. Background Art

[0002] A hot air gun is a tool that mainly uses the hot air blown out from the gun core of a heating resistor to weld and remove components.

[0003] Traditional hot air guns are not sensitive enough in temperature control during use, which may cause damage to components due to excessive temperature during heating, welding or removal, affecting the stability of component processing. For example, a temperature-controllable hot air gun described in the patent announcement number CN 217929229U uses a temperature sensor to detect the hot air temperature at the air outlet and changes the power of the heating wire to complete the temperature control. However, the hot air gun cannot freely adjust the temperature of the hot air when in use, and after long-term use, the hot air gun will cause the temperature to be too high and difficult to dissipate quickly, affecting the long-term use and storage of the hot air gun.

[0004] Based on this, a hot air gun with automatic temperature control is now provided to eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a hot air gun with automatic temperature control to solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hot air gun with automatic temperature control, comprising:

[0008] Heat gun body;

[0009] A handle, which is arranged at the lower end of the heat gun body;

[0010] An air inlet, the air inlet being arranged on the left side of the heat gun body;

[0011] An air supply component is provided inside the hot air gun body, an air duct is connected to the right side of the hot air gun body, a heating wire is provided inside the air duct, a heat dissipation component is provided outside the air duct, an air outlet is provided on the right side of the air duct, and a rotating drum is rotatably provided on the right side of the air duct.

[0012] Preferably, the air supply assembly includes a fixing frame fixed inside the hot air gun body, a motor is provided on the left side of the fixing frame, and an output end of the motor is connected to the fan blades.

[0013] Preferably, the heat dissipation assembly includes heat dissipation ports arranged at the upper and lower ends of the middle of the air duct, and slide rails are provided on both side surfaces of the air duct, and the slide rails are slidably connected to the heat insulation sleeve.

[0014] Preferably, a connecting ring is provided on the right side surface of the air duct, an annular groove is provided on the inner side of the rotating drum, and the connecting ring and the annular groove correspond to each other.

[0015] Preferably, a first blade is disposed on the right end surface of the air duct, and a second blade is disposed on the right end surface of the rotating drum. The outer surface of the first blade is in sliding contact with the inner wall of the second blade and cooperates with each other.

[0016] Preferably, the air inlet is provided with a dustproof net.

[0017] Preferably, a control switch electrically connected to the heating wire is provided on the handle surface, a temperature adjustment knob is provided above the control switch, a temperature sensor is movably connected to the upper end of one side of the air duct, and the temperature sensor is connected to the input end of the control switch.

[0018] Preferably, the width of the heat insulation sleeve is greater than the opening width of the heat dissipation port.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The utility model sets the corresponding temperature of the temperature sensor by turning the adjustment knob. When the temperature sensor detects that the hot air temperature at the air outlet is different from the set temperature, the power of the heating wire is changed in time to achieve free control of the temperature of the hot air gun.

[0021] 2. The utility model adjusts the opening size of the heat dissipation port by moving the heat insulation sleeve on the air duct, thereby achieving rapid regulation of the temperature in the air duct, and the heat insulation sleeve can prevent the heated air duct from affecting the surroundings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of one side of the utility model.

[0023] Figure 2 It is a structural cross-sectional view of one side of the utility model.

[0024] Figure 3 For this utility model Figure 2 A is an enlarged view of the middle image.

[0025] Notes on figure numbers: 100 hot air gun body, 101 handle, 102 fixing frame, 103 motor, 104 fan blade, 200 air duct, 201 heating wire, 202 heat dissipation port, 203 slide rail, 204 heat insulation sleeve, 205 rotating drum, 206 connecting ring, 207 annular groove, 208 first blade, 209 second blade, 300 air inlet, 301 air outlet, 302 dust net, 303 temperature sensor, 304 adjustment knob, 305 control switch. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In one embodiment, Figure 1-Figure 3 As shown, a temperature-automatically controlled hot air gun includes a hot air gun body 100, a handle 101 and an air inlet 300. A control switch 305 electrically connected to a heating wire 201 is provided on the surface of the handle 101, and a temperature adjustment knob 304 is provided above the control switch 305. A temperature sensor 303 is movably connected to the upper end of one side of the air duct 200. The temperature sensor 303 is connected to the input end of the control switch 305, and is used to control the corresponding temperature set by the temperature sensor 303 and the start of the heating wire 201.

[0028] The air inlet 300 is arranged on the left side of the hot air gun body 100, and is used for the air intake into the hot air gun body 100 to realize air circulation. The air inlet 300 is provided with a dustproof net 302, which is used to prevent dust from entering the hot air gun body 100 and reduce the influence of dust on the processing of components.

[0029] An air supply component is provided inside the hot air gun body 100, and the right side of the hot air gun body 100 is connected to the air duct 200. A heating wire 201 is provided inside the air duct 200 for heating the air flow inside the air duct 200. A heat dissipation component is provided outside the air duct 200, and an air outlet 301 is provided on the right side of the air duct 200 to deliver the heated air flow to a place that needs to be heated. A rotating drum 205 is provided on the right side of the air duct 200.

[0030] The air supply assembly includes a fixing frame 102 fixed inside the hot air gun body 100, which is used to fix the motor 103. A motor 103 is provided on the left side of the fixing frame 102, which is used to provide power for the fan blades 104. The output end of the motor 103 is connected to the fan blades 104. Starting the motor 103 drives the fan blades 104 to rotate, so that air passes through the inside of the hot air gun body 100 and enters the inside of the air duct 200.

[0031] The heat dissipation component includes heat dissipation ports 202 arranged at the upper and lower ends of the middle of the air duct 200, so that the hot air inside the air duct 200 can be discharged for rapid cooling. Slide rails 203 are provided on the surfaces of both sides of the air duct 200 to facilitate the movement of the insulation sleeve 204. The insulation sleeve 204 is slidably connected to the slide rails 203, and the width of the insulation sleeve 204 is greater than the opening width of the heat dissipation port 202 to prevent people from being scalded by the air duct 200 heated by the heating wire 201 during use. The temperature sensor 303 is used to detect the hot air temperature at the air outlet 301 to adjust the power of the heating wire 201. When in use, the insulation sleeve 204 on the air duct 200 can be moved to adjust the opening size of the heat dissipation port 202, so as to achieve rapid adjustment of the temperature in the air duct 200, and the insulation sleeve 204 can prevent the heated air duct 200 from affecting the surroundings.

[0032] A connecting ring 206 is provided on the right surface of the air duct 200 , and an annular groove 207 is provided on the inner side of the rotating drum 205 , and the connecting ring 206 and the annular groove 207 correspond to each other, so that the rotating drum 205 can rotate freely on the right side of the air duct 200 .

[0033] A first blade 208 is provided on the right end face of the air duct 200, and a second blade 209 is provided on the right end face of the rotating drum 205. The outer surface of the first blade 208 and the inner wall of the second blade 209 are in sliding contact and cooperate with each other. The wind blown out from the air outlet 301 can make the rotating drum 205 rotate, so that the hot air can be blown out evenly from the air duct 200.

[0034] When in use, the motor 103 is started to drive the fan blades 104 to rotate, and the air is sent into the air duct 200 through the inside of the hot air gun body 100, the control switch 305 is turned on, the heating wire 201 is started, and the adjustment knob 304 is turned to set the corresponding temperature for the temperature sensor 303. The air sent into the air duct 200 will be heated by the heating wire 201, and then the hot air will be blown to the components to be processed through the air outlet 301, which is convenient for welding or picking. The temperature sensor 303 can detect the hot air temperature at the air outlet 301. When the temperature is different from the set temperature, the power of the heating wire 201 is changed in time to complete the temperature control. After the gun is used, it is necessary to dissipate heat in time to facilitate the storage of the hot air gun. The user can move the insulation sleeve 204 on the outside of the air duct 200 and adjust the opening size of the heat dissipation port 202 on the air duct 200 to quickly reduce the temperature in the air duct 200. The insulation sleeve 204 can prevent people from being scalded. When the air outlet 301 is blowing air, the rotating drum 205 can rotate freely on the air duct 200, so that the hot air can be blown out evenly from the air duct 200, which is convenient for the use of the hot air blower. A dustproof net 302 is provided at the air inlet 300 on the left side of the hot air gun body 100, which can play a dustproof role and reduce the impact of dust on the processing of components.

[0035] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A hot air gun with automatic temperature control, comprising: Hot air gun body (100); A handle (101), wherein the handle (101) is arranged at the lower end of the hot air gun body (100); An air inlet (300), wherein the air inlet (300) is arranged on the left side of the hot air gun body (100); The invention is characterized in that an air supply component is provided inside the hot air gun body (100), the right side of the hot air gun body (100) is connected to an air duct (200), a heating wire (201) is provided inside the air duct (200), a heat dissipation component is provided outside the air duct (200), an air outlet (301) is provided on the right side of the air duct (200), and a rotating drum (205) is rotatably provided on the right side of the air duct (200).

2. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: The air supply assembly comprises a fixing frame (102) fixed inside the hot air gun body (100), a motor (103) is provided on the left side of the fixing frame (102), and an output end of the motor (103) is connected to a fan blade (104).

3. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: The heat dissipation assembly comprises heat dissipation ports (202) arranged at the middle and upper ends of the air duct (200); slide rails (203) are provided on the surfaces of both sides of the air duct (200); and a heat insulation sleeve (204) is slidably connected to the slide rails (203).

4. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: A connecting ring (206) is provided on the right side surface of the air duct (200), and an annular groove (207) is provided on the inner side of the rotating drum (205), and the connecting ring (206) and the annular groove (207) correspond to each other.

5. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: The right end surface of the air duct (200) is provided with a first blade (208), and the right end surface of the rotating drum (205) is provided with a second blade (209). The outer surface of the first blade (208) and the inner wall of the second blade (209) are in sliding contact and cooperate with each other.

6. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: The air inlet (300) is provided with a dustproof net (302).

7. A temperature-automatically controlled hot air gun according to claim 1, characterized in that: The surface of the handle (101) is provided with a control switch (305) electrically connected to the heating wire (201), and a temperature adjustment knob (304) is provided above the control switch (305). The upper end of one side of the air duct (200) is movably connected to a temperature sensor (303), and the temperature sensor (303) is connected to the input end of the control switch (305).

8. A temperature-automatically controlled hot air gun according to claim 3, characterized in that: The width of the heat insulation sleeve (204) is greater than the opening width of the heat dissipation port (202).

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