Hot air gun
By inserting a light source piece into the gun tip of the hot air gun and designing it to shoot out along the airflow channel, the shadow problem caused by the gun tip blocking the light source is solved, and a more efficient operation process is achieved.
Patent Information
- Application Number
- CN202421857454.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-01
AI Technical Summary
When existing hot air guns disassemble or install smaller target components, the gun head blocks the light source and causes shadows, affecting operation efficiency.
A hot air gun is designed, with a built-in light source and a heating element on the gun head, and the light source is emitted along the second airflow channel to prevent the heating element from blocking the light source and ensuring sufficient lighting of the target element.
By combining the light source into the hot air gun, the operator can install or remove the work without shadow, improving the operation efficiency.
Smart Images
Figure CN223036610U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of power tools, and more particularly to a hot air gun. Background Art
[0002] A hot air gun is a tool that mainly uses hot air blown out by the heating resistance wire in the gun core to weld or pick components on a target component. When operating the hot air gun, the operator needs to hold the hot air gun by hand and align the muzzle of the hot air gun with the target component at a certain distance to install or pick the target component.
[0003] When disassembling or installing a relatively small target component (such as a resistor or capacitor on a circuit board) with an existing hot melt gun, the muzzle of the hot air gun needs to be aligned with the target component at a closer distance to facilitate precise operation on the target component with a smaller volume. However, when the muzzle of the hot air gun is aligned with the target component at a closer distance, the gun head of the hot air gun blocks the light source hanging at a high place, causing a shadow to be generated in the vicinity of the target component, resulting in the operator being unable to clearly see the target component to be disassembled and affecting the operation efficiency. Summary of the Utility Model
[0004] The present disclosure provides a hot air gun to at least solve the above problems in the prior art.
[0005] To achieve the above object, the present disclosure provides the following technical solution: A hot air gun, comprising:
[0006] The hot air gun includes:
[0007] A hot air gun body having a first air flow channel;
[0008] A gun head connected to one end of the hot air gun body and having a second air flow channel communicating with the first air flow channel;
[0009] A heating assembly including a light source member and a heating member, the light source member and the heating member are received in the second air flow channel and are spaced apart along a direction perpendicular to the extension direction of the second air flow channel, and both the light source member and the heating member are connected to the gun head.
[0010] In an implementable embodiment, the light source member and the heating member are also spaced apart along the extension direction of the second air flow channel, and the light source member is close to the hot air gun body, and the heating member is far from the hot air gun body.
[0011] In an implementable embodiment, the light source member includes:
[0012] A light source body received in the second air flow channel;
[0013] A heat insulation sleeve sleeved on the light source body, the heat insulation sleeve is connected to the light source member and the gun head.
[0014] In one embodiment, the light source component further includes a light-transmitting heat-insulating plate, which is connected to an end of the heat-insulating sleeve away from the hot air gun body, and the light beam emitted by the light source component passes through the light-transmitting heat-insulating plate and then exits the gun head.
[0015] In one embodiment, the gun tip comprises:
[0016] A gun head body connected to one end of the heat gun body and having a second air flow channel connected to the first air flow channel;
[0017] The baffle body is received in the second air flow channel and connected to the gun head body; wherein,
[0018] The baffle body is provided with a first through hole and a second through hole, both of which penetrate the baffle body along the extension direction of the second air flow channel, and the first through hole faces the light source component in the extension direction of the second air flow channel, and the light beam emitted by the light source component is emitted from the gun head body along the first through hole;
[0019] The heating element is received in the second through hole and connected to the baffle body. The airflow entering the second airflow channel passes through the second through hole and the heating element and then flows out of the gun head body.
[0020] In one possible embodiment, the number of the heating elements and the second through holes is the same and both are multiple, the multiple heating elements are circumferentially spaced about the center line of the first through hole as the axis, and the multiple second through holes are circumferentially spaced about the center line of the first through hole as the axis.
[0021] In one possible implementation manner, the heating element is an electric heating wire and has a spiral structure.
[0022] In one embodiment, the hot air gun further includes a nozzle, which is detachably connected to an end of the gun head facing away from the hot air gun body, and the nozzle is connected to the second air flow channel.
[0023] In one embodiment, the diameter of the end of the air nozzle away from the gun head is smaller than the diameter of the second air flow channel, and the port of the end of the air nozzle away from the gun head faces the light source in the extension direction of the second air flow channel.
[0024] In one embodiment, the hot air gun further comprises an insulating sleeve, which is movably mounted on the gun head and detachably connected to the hot air gun body, and is used to isolate heat from the gun head.
[0025] When the above hot air gun is in use, an external air pump is connected to the other end of the hot air gun body. The air flow generated by the air pump enters the first air flow channel in the hot air gun body and then enters the second air flow channel, where it is heated by the heating element to form hot air. The hot air flows out of the gun head along the second air flow channel for installing or removing a target component. At the same time, the light beam for illumination generated by the light source component is emitted from the gun head along the second air flow channel to illuminate the target component, so as to avoid the shadow generated by the gun head. In this way, by integrating the light source component into the hot air gun, it is convenient for the operator to operate the hot air gun to perform shadowless installation or removal operations on the target component, saving time and effort and being convenient and fast, thereby improving the operation efficiency.
[0026] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. Brief Description of the Drawings
[0027] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understandable. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, where:
[0028] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0029] Figure 1 Shows a schematic structural diagram of the hot air gun in the embodiment of the present disclosure;
[0030] Figure 2 Shows Figure 1 A cross-sectional schematic diagram of the hot air gun in
[0031] Figure 3 Shows Figure 2 An enlarged view of the partial III in
[0032] Figure 4 Shows Figure 1 A schematic structural diagram of the gun head and the heating element in
[0033] Explanation of the reference numerals in the drawings:
[0034] In the figure: 10, hot air gun; 11, hot air gun body; 111, first air flow channel; 12, gun head; 121, second air flow channel; 122, gun head body; 123, partition body; 124, first through hole; 125, second through hole; 13, heating assembly; 131, light source component; 1311, light source body; 1312, heat insulation sleeve; 1313, light-transmitting heat insulation plate; 132, heating element; 14, nozzle; 15, heat insulation sleeve. Detailed Embodiments
[0035] To make the objectives, features, and advantages of the present disclosure more apparent and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.
[0036] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, and no limitation is imposed herein.
[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present disclosure, "a plurality" means two or more, unless otherwise specifically defined.
[0038] The following will be described with reference to the accompanying drawings for the embodiments provided by the present utility model.
[0039] Please refer to Figure 1 , the embodiments of the present disclosure provide a hot air gun 10, which is used to blow hot air for installation or removal operations on a target component (not shown in the figure). Specifically, the hot air temperature is 200°C - 480°C; please also refer to Figure 2 and Figure 3 , the hot air gun 10 includes a hot air gun body 11, a gun head 12, and a heating component 13. The hot air gun body 11 has a first air flow channel 111. The gun head 12 is connected to one end of the hot air gun body 11 and has a second air flow channel 121 communicating with the first air flow channel 111. The heating component 13 includes a light source member 131 and a heating member 132. The light beam emitted by the light source member 131 is emitted along the extending direction of the second air flow channel 121. The light source member 131 and the heating member 132 are received in the second air flow channel 121 and are spaced apart along a direction perpendicular to the extending direction of the second air flow channel 121 to prevent the heating member 132 from blocking the light beam emitted by the light source member 131, and both the light source member 131 and the heating member 132 are connected to the gun head 12. Exemplarily, the target component can be a packaged resistor or a packaged capacitor that needs to be installed or removed onto a circuit board, and the heating member 132 can be an electric heating wire.
[0040] When the above-mentioned hot air gun 10 is in use, an external air pump is connected to the other end of the hot air gun body 11, and the airflow generated by the air pump enters the first airflow channel 111 in the hot air gun body 11, and enters the second airflow channel 121 to be heated by the heating element 132 to form hot air, and the hot air flows out of the gun head 12 along the second airflow channel 121 to be used for installing or removing the target component. At the same time, the light beam for illumination generated by the light source element 131 is emitted from the gun head 12 along the second airflow channel 121 and illuminates the target component to avoid the shadow caused by the gun head 12; in this way, by combining the light source element 131 into the hot air gun 10, it is convenient for the operator to operate the hot air gun 10 to install or remove the target component without shadow, which saves time and effort and is convenient and quick, thereby improving the working efficiency.
[0041] It is understandable that the present application combines the light source component 131 into the hot air gun 10. Since the high temperature generated by the hot air gun 10 can easily accelerate the aging or damage of the light source component 131, the service life of the light source component 131 is greatly affected. Therefore, it is necessary to avoid the influence of the hot air generated by the hot air gun 10 on the light source component 131 as much as possible.
[0042] See also Figure 3 In some embodiments, the light source component 131 and the heating component 132 are also spaced apart along the extension direction of the second air flow channel 121 , and the light source component 131 is close to the hot air gun body 11 , and the heating component 132 is far away from the hot air gun body 11 .
[0043] In this way, the light source component 131 and the heating component 132 are spaced apart along the extension direction of the second air flow channel 121, so that the cold air flow entering the second air flow channel 121 from the first air flow channel 111 first passes through the light source component 131, and then passes through the heating component 132 to be heated and form hot air. Finally, the formed hot air flows out from the port of the second air flow channel 121 away from the first air flow channel 111 to perform installation or removal operations. Therefore, the hot air heated by the heating component 132 does not pass through the light source component 131, so as to avoid overheating of the light source component 131 and affecting its life.
[0044] In this embodiment, the light source element 131 is disposed at the center of the second air flow channel 121 , and the heating element 132 is disposed at a position away from the second air flow channel 121 .
[0045] See also Figure 3 In some embodiments, the light source 131 includes a light source body 1311 and a heat insulation sleeve 1312. The light source body 1311 is received in the second air flow channel 121. The heat insulation sleeve 1312 is sleeved on the light source body 1311. The heat insulation sleeve 1312 is connected to the light source 131 and the gun head 12. Exemplarily, the light source 1311 may be an LED lamp.
[0046] In this way, the light source body 1311 is stored and protected by the insulation sleeve 1312 to prevent the airflow from directly hitting the light source body 1311 and damaging the light source body 1311. At the same time, the insulation sleeve 1312 also uses its own insulation performance to reduce the damage of the high-temperature airflow generated by the heating element 132 to the light source body 1311.
[0047] In this embodiment, the insulation sleeve 1312 is a funnel-shaped structure, and the diameter of the insulation sleeve 1312 gradually increases from one end of the second air flow channel 121 close to the first air flow channel 111 toward the end away from the second air flow channel 121, so as to reduce the resistance of the airflow entering the second air flow channel 121 when passing through the light source 131, thereby ensuring that the airflow in the second air flow channel 121 can flow at a stable rate, that is, ensuring the stability of the wind speed.
[0048] See also Figure 3 In some embodiments, the light source 131 further includes a light-transmitting heat-insulating plate 1313, which is connected to the end of the heat-insulating sleeve 1312 away from the hot air gun body 11, and the light beam emitted by the light source 131 passes through the light-transmitting heat-insulating plate 1313 and then exits the gun head 12. Exemplarily, the light-transmitting heat-insulating plate 1313 can be a plate made of quartz glass.
[0049] In this way, a translucent heat-insulating plate 1313 is provided on one end of the heat-insulating sleeve 1312 facing the heating element 132, so as to prevent the airflow heated by the heating element 132 from flowing back into the heat-insulating sleeve 1312 and heating the light source 1311 without affecting the propagation of the light beam generated by the light source 1311. At the same time, the translucent heat-insulating plate 1313 also uses its own heat-insulating performance to reduce the heat conduction efficiency, which can minimize the damage of the hot air generated by the heating element 132 to the light source 1311.
[0050] See also Figure 4 In some embodiments, the gun head 12 includes a gun head body 122 and a baffle 123. The gun head body 122 is connected to one end of the hot air gun body 11 and has a second air flow channel 121 connected to the first air flow channel 111. The baffle 123 is received in the second air flow channel 121 and connected to the gun head body 122. The baffle 123 is provided with a first through hole 124 and a second through hole 125. The first through hole 124 and the second through hole 125 are both extended along the second air flow channel 121. The first through hole 124 is directly opposite to the light source 131 in the extension direction of the second air flow channel 121. The light beam emitted by the light source 131 is emitted from the gun head body 122 along the first through hole 124. The heating element 132 is received in the second through hole 125 and connected to the blocking body 123. The airflow entering the second air flow channel 121 passes through the second through hole 125 and the heating element 132 and then flows out of the gun head body 122. Specifically, the blocking body 123 is made of heat insulating material.
[0051] Thus, by accommodating the heating element 132 into the second through-hole 125 on the partition body 123, the heat generated by the heating element 132 is reduced from escaping, thereby further improving the heat insulation effect on the light source element 131. At the same time, by opening the first through-hole 124, the light beam generated by the light source body can be emitted along the first through-hole 124, thus avoiding the partition body 123 from blocking the light beam.
[0052] In this embodiment, the light-transmitting and heat-insulating plate 1313 in the light source element 131 is fixedly connected to the partition body 123 and covers one end of the first through-hole 124 facing the first air flow channel 111, so that the light beam emitted by the light source body 1311 can directly enter the first through-hole 124 after passing through the light-transmitting and heat-insulating plate 1313 and be emitted along the first through-hole 124. At the same time, the light-transmitting and heat-insulating plate 1313 is fixedly connected to the partition body 123 to prevent the high-temperature air flow generated by the heating element 132 from flowing in along the gap between the light-transmitting and heat-insulating plate 1313 and the partition body 123 and heating the light-transmitting and heat-insulating plate 1313. Therefore, by fixedly connecting the light-transmitting and heat-insulating plate 1313 to the partition body 123, it is beneficial to further reduce the influence of the hot air on the light source body 1311.
[0053] In this embodiment, the partition body 123 is coaxially arranged with the gun head body 122. A second air flow channel 121 is provided inside the gun head body 122. The second air flow channel 121 axially penetrates the gun head body 122 along the axis of the gun head body 122. The partition body 123 is accommodated in the second air flow channel 121, and the outer peripheral wall of the partition body 123 is attached to and fixedly connected to the inner peripheral wall of the gun head body 122.
[0054] Please refer to Figure 4 , in some embodiments, the number of the heating elements 132 and the second through-holes 125 is the same and both are multiple. The multiple heating elements 132 are circumferentially spaced apart with the center line of the first through-hole 124 as the axis, and the multiple second through-holes 125 are circumferentially spaced apart with the center line of the first through-hole 124 as the axis; thus, the multiple heating elements 132 help to improve the heating efficiency of the hot air gun 10.
[0055] Please refer to Figure 4 , in some embodiments, the heating element 132 is an electric heating wire and has a spiral structure. Thus, the spiral electric heating wire has a fast heating speed for the air flow and less resistance.
[0056] Please refer to Figure 1 , in some embodiments, the hot air gun 10 further includes a nozzle 14. The nozzle 14 is detachably connected to one end of the gun head 12 facing away from the hot air gun body 11, and the nozzle 14 communicates with the second air flow channel 121; thus, it is convenient to guide the air flow to flow out from the second air flow channel 121 through the nozzle 14.
[0057] Please refer to Figure 3 Figure 3 , in some embodiments, the diameter of the end of the air nozzle 14 facing away from the gun head 12 is smaller than the diameter of the second air flow channel 121, and the port of the end of the air nozzle 14 facing away from the gun head 12 is directly opposite to the light source member 131 in the extending direction of the second air flow channel 121; thus, by reducing the diameter of the port where the air flow discharged from the air nozzle 14 is located, it is convenient to improve the rate of the air flow flowing out of the air nozzle 14, thereby improving the efficiency of heat outflow, being beneficial to improving the efficiency of the target component receiving heat, and improving the efficiency of the installation or removal operation of the target component.
[0058] Please refer to Figure 1 Figure 1 , in some embodiments, the hot air gun 10 further includes a heat insulation sleeve 15. The heat insulation sleeve 15 is movably sleeved on the gun head 12 and detachably connected to the hot air gun main body 11. The heat insulation sleeve 15 is used to isolate the heat at the gun head 12; during the operation, when the hot air flow blown out by the hot air gun 10 blows onto the target workpiece, a small part of the heat will be reflected onto the hot air gun 10. The heat insulation sleeve 15 blocks the hot air flow reflected onto the hot air gun 10, so as to reduce the body feeling temperature of the operator when holding the hot air gun main body 11.
[0059] The operation principle of the above hot air gun 10 is generally as follows:
[0060] An external air pump is installed on the hot air gun main body 11 and communicated with the first air flow channel 111. The air flow generated by the air pump enters the second air flow channel 121 after passing through the first air flow channel 111. The air flow entering the second air flow channel 121 contacts the heating member 132 after passing through the light source member 131. The heating member 132 heats the air flow and generates a hot air flow. The hot air flow flows out of the second air flow channel 121 and is ejected through the air nozzle 14 for the installation or removal operation of the target component.
[0061] As described above, only the specific embodiments of the present disclosure are provided, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claimed rights.
Claims
1. A hot air gun, characterized in that: The hot air gun comprises: The heat gun body has a first air flow channel; A gun head connected to one end of the heat gun body and having a second air flow channel connected to the first air flow channel; The heating assembly includes a light source and a heating element. The light source and the heating element are received in the second air flow channel and spaced apart along an extension direction perpendicular to the second air flow channel. Both the light source and the heating element are connected to the gun head.
2. The hot air gun according to claim 1, characterized in that: The light source component and the heating component are also arranged at intervals along the extension direction of the second air flow channel, and the light source component is close to the heat gun body, and the heating component is far away from the heat gun body.
3. The hot air gun according to claim 1, characterized in that: The light source comprises: A light source body is received in the second air flow channel; The heat insulation sleeve is sleeved on the light source body, and the heat insulation sleeve is connected to the light source component and the gun head.
4. The hot air gun according to claim 3, characterized in that: The light source component also includes a light-transmitting heat-insulating plate, which is connected to one end of the heat-insulating sleeve away from the hot air gun body. The light beam emitted by the light source component passes through the light-transmitting heat-insulating plate and then exits the gun head.
5. The hot air gun according to claim 1, characterized in that: The gun head comprises: A gun head body connected to one end of the heat gun body and having a second air flow channel connected to the first air flow channel; The baffle body is received in the second air flow channel and connected to the gun head body; wherein, The baffle body is provided with a first through hole and a second through hole, both of which penetrate the baffle body along the extension direction of the second air flow channel, and the first through hole faces the light source component in the extension direction of the second air flow channel, and the light beam emitted by the light source component is emitted from the gun head body along the first through hole; The heating element is received in the second through hole and connected to the baffle body. The airflow entering the second airflow channel passes through the second through hole and the heating element and then flows out of the gun head body.
6. The hot air gun according to claim 5, characterized in that: The number of the heating elements and the second through holes is the same and both are multiple, the multiple heating elements are arranged circumferentially with the center line of the first through hole as the axis, and the multiple second through holes are arranged circumferentially with the center line of the first through hole as the axis.
7. The hot air gun according to claim 1, characterized in that: The heating element is an electric heating wire and has a spiral structure.
8. The hot air gun according to claim 1, characterized in that: The hot air gun further comprises an air nozzle, which is detachably connected to an end of the gun head away from the hot air gun body, and the air nozzle is connected to the second air flow channel.
9. The hot air gun according to claim 8, characterized in that: The diameter of the end of the air nozzle away from the gun head is smaller than the diameter of the second air flow channel, and the port of the end of the air nozzle away from the gun head faces the light source in the extension direction of the second air flow channel.
10. The hot air gun according to claim 8, characterized in that: The heat gun further comprises an insulating sleeve, which is movably mounted on the gun head and detachably connected to the heat gun body, and is used to isolate the heat at the gun head.