Integrated micro hot air welding and cutting platform

Through integrated design and precise temperature control, the portability and heating range control issues of existing hot air desoldering stations have been solved, improving the safety and efficiency of desoldering and soldering micro-components.

CN224487912UActive Publication Date: 2026-07-14SHENZHEN AIXUN INTELLIGENT HARDWARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN AIXUN INTELLIGENT HARDWARE CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing hot air desoldering stations are designed as separate units, resulting in bulky equipment with poor portability and an inability to precisely control the heating range, which can easily damage micro-surface components.

Method used

Adopting an integrated design, the turbine centrifugal fan is integrated into the housing. The heated pen refill module is connected via the air gun handle. The air outlet diameter is 1mm-3mm. It is equipped with a replaceable air nozzle body and a multi-power heated pen refill module. Combined with the screen display module and function button group, it achieves precise temperature control and human-computer interaction.

Benefits of technology

This technology improves the portability of hot air desoldering stations and enables precise control of the heating range, reducing the risk of damage to micro-components and enhancing operational safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to an integrated micro hot air dismounting and welding platform, and relates to the technical field of dismounting and welding equipment. The integrated micro hot air dismounting and welding platform comprises a shell, a turbine centrifugal fan integrated in the shell, a hot air gun handle fixedly connected with the shell, a heating pen core module detachably arranged at the front end of the hot air gun handle, and a nozzle assembly installed at the air outlet of the heating pen core module. The turbine centrifugal fan is connected with the heating pen core module through a connecting air pipe. The diameter of the air outlet of the nozzle assembly is 1mm-3mm. The heating pen core module is assembled into the hot air gun handle. High-pressure gas is generated by the turbine centrifugal fan integrated in the shell, and then is delivered into the heating pen core module at the front end of the hot air gun handle. The gas is heated to a set temperature by the heating pen core module, and finally is sprayed out through the nozzle assembly in the form of focused airflow with a diameter of 1mm-3mm. In this way, the equipment volume is reduced, the portability of the hot air dismounting and welding platform is improved, and the heating range of the nozzle is accurately controlled.
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Description

Technical Field

[0001] This application relates to the technical field of desoldering equipment, and in particular to an integrated miniature hot air desoldering station. Background Technology

[0002] A hot air desoldering station is a specialized device that uses high-temperature airflow to heat the solder joints of electronic components, enabling the desoldering or soldering of components.

[0003] In existing technologies, hot air desoldering stations typically adopt a split design, consisting of an independent main unit and a separate hot air gun base. The nozzle diameter of the hot air gun outlet is generally 4mm-12mm, suitable for desoldering large-area components.

[0004] However, this design results in a bulky device with poor portability, and the oversized nozzle makes it impossible to accurately control the heating range. It also makes it easy to damage surrounding precision components when desoldering micro-surface components such as 0402 and 0201. Utility Model Content

[0005] To improve the portability of hot air desoldering stations and to precisely control the heating range of the nozzles, this application provides an integrated miniature hot air desoldering station.

[0006] This application provides an integrated miniature hot air desoldering station, which adopts the following technical solution:

[0007] An integrated miniature hot air desoldering station includes a housing, a turbine centrifugal fan integrated within the housing, a hot air gun handle fixedly connected to the housing, a heating pen refill module detachably disposed at the front end of the hot air gun handle, and a nozzle assembly installed at the air outlet of the heating pen refill module. The turbine centrifugal fan is connected to the heating pen refill module via a connecting air pipe, and the air outlet diameter of the nozzle assembly is 1mm-3mm.

[0008] By adopting the above technical solution, the heating pen refill module is assembled into the handle of the hot air gun. High-pressure gas is generated by a turbine centrifugal fan integrated in the housing, and then delivered to the heating pen refill module at the front end of the hot air gun handle. The heating pen refill module heats the gas to a set temperature, and finally ejects it as a focused airflow with a diameter of 1mm-3mm through the nozzle assembly. This reduces the size of the equipment, improves the portability of the hot air desoldering station, and precisely controls the heating range of the nozzle.

[0009] Furthermore, the air outlet of the heated pen refill module is provided with a threaded connector, and the nozzle assembly includes multiple replaceable nozzle bodies. The nozzle bodies are detachably threadedly connected to the threaded connector, and the air outlet diameters of the multiple nozzle bodies include 1mm, 1.5mm, 2mm and 3mm.

[0010] By adopting the above technical solution, the air outlet of the heated pen refill module is equipped with a threaded connector, which enables the quick replacement of various sizes of air nozzles through threaded connection, while ensuring airtightness, and thus adapting to the desoldering and soldering needs of components of different sizes.

[0011] Furthermore, the heated pen refill module is provided in multiple sets according to different power levels and is used as a spare. The multiple sets of heated pen refill modules can be replaced and set on the handle of the air gun. The housing is provided with a pen refill holder for placing the spare heated pen refill modules. The pen refill holder is provided with multiple storage slots that match the shape of the heated pen refill modules.

[0012] By adopting the above technical solution, heating pen refill modules of different power models are placed in corresponding storage slots, which facilitates the orderly storage of excess heating pen refill modules to prevent loss. At the same time, the closed storage avoids collision damage and improves the management efficiency of key consumables.

[0013] Furthermore, the housing is provided with a pen refill socket, the pen refill socket comprising:

[0014] A limiting plate is provided on the housing. A cavity for placing the heating pen refill module is provided between the limiting plate and the housing. A U-shaped groove is provided on the limiting plate to engage with the heating pen refill module. A limiting protrusion is provided on the side of the heating pen refill module located outside the air gun handle. The bottom of the limiting plate abuts against the limiting protrusion and prevents the heating pen refill module from sliding along the length direction of the air gun handle.

[0015] A retaining sleeve is provided on the limiting plate and is used to place the heating pen refill module. The retaining sleeve prevents the heating pen refill module from moving when the air gun handle slides towards the retaining sleeve and assembles the heating pen refill module into the air gun handle.

[0016] By adopting the above technical solution, the pen refill insert holder uses the U-shaped groove on the limiting plate to engage with the limiting protrusion of the heating pen refill module, thereby preventing the heating pen refill module from sliding with the air gun handle. The mechanical cooperative structure enables the safe disassembly and assembly of the high-temperature module, reducing the risk of burns during replacement. At the same time, the clamping sleeve limits the heating pen refill, making it easy to clamp it tightly inside the air gun handle, thus realizing the disassembly and assembly of the heating pen refill.

[0017] Furthermore, a screen display module is provided on the housing. The screen display module is electrically connected to the air gun handle and is used to display the temperature parameters and wind speed settings of the gas inside the air gun handle.

[0018] By adopting the above technical solution, the screen display module is connected to the detector in the air gun handle to read the gas temperature and wind speed parameters in real time, thereby realizing visual monitoring of the heating core parameters, providing data support for precise temperature control, and avoiding overheating damage to micro components.

[0019] Furthermore, the air gun handle is equipped with a group of function buttons for adjusting the internal gas temperature and wind speed settings. The screen display module and the function button group are used together to set and display the temperature parameters and wind speed settings.

[0020] By adopting the above technical solution, the function button group adjusts the gas temperature and wind speed in the air gun handle, and sets parameters in conjunction with the screen display module, thereby realizing closed-loop control of heating intensity through human-computer interaction and improving operational accuracy.

[0021] Furthermore, a sleep position for the air gun is rotatably mounted on the housing. The sleep position has a locking groove for locking the air gun handle. When the locking groove abuts against the air gun handle, it is electrically grounded and causes the air gun handle to control the heating pen refill module to enter a sleep state. A sleep cavity is provided between the sleep position and the housing. The heating pen refill module passes through the locking groove and enters the sleep cavity. An adjustment knob is provided on the housing for adjusting the angle of the sleep position.

[0022] By adopting the above technical solution, the air gun sleep socket fixes the air gun handle through the snap-locking groove, allowing the heating pen refill module to enter the sleep chamber. When the snap-locking groove abuts against the air gun handle, the air gun sleep socket and the air gun handle are electrically grounded, thereby enabling the air gun handle to control the heating pen refill module to enter the sleep state. The adjustment knob controls the angle of the air gun sleep socket, reducing standby power consumption by putting the air gun into sleep mode. At the same time, the adjustable angle is convenient to adapt to different working scenarios.

[0023] Furthermore, the turbine centrifugal fan is connected to the air gun handle via a connecting air pipe, and the housing is provided with a bracket for fixing and supporting the connecting air pipe.

[0024] By adopting the above technical solution, the connecting air pipe between the turbine centrifugal fan and the air gun handle is fixed by the bracket, thereby eliminating air supply fluctuations caused by the shaking of the connecting air pipe, maintaining airflow stability, preventing pipe entanglement, and improving operational safety.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] By assembling the heated pen refill module into the hot air gun handle, and then selecting a suitable air resistance body to install on the threaded connector, high-pressure gas is generated by the turbine centrifugal fan integrated in the housing. This gas is then delivered to the heated pen refill module at the front end of the hot air gun handle through the connecting air pipe. The heated pen refill module heats the gas to the set temperature, and finally blows it out through the nozzle body. This reduces the size of the equipment, improves the portability of the hot air desoldering station, and precisely controls the heating range of the nozzle. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the integrated miniature hot air desoldering station structure of this application, in which the connecting air pipes are not shown;

[0028] Figure 2 This is an explosion diagram of the integrated miniature hot air desoldering station of this application;

[0029] Figure 3 This is a schematic diagram of the structure of the heating pen refill module and the nozzle body of this application.

[0030] Reference numerals: 1. Housing; 11. Left housing; 12. Right housing; 13. 7-pin aviation connector; 14. Electrical integrated connector; 15. Screen display module; 16. AC to DC data cable; 2. Turbine centrifugal fan; 3. Air gun handle; 31. Function button group; 4. Heated pen refill module; 41. Heated pen refill body; 42. Snap-fit ​​sealing sleeve; 5. Nozzle assembly; 51. Nozzle body; 6. Pen refill holder; 61. Storage slot; 7. Pen refill insertion / removal socket; 71. Limiting plate; 711. U-shaped groove; 72. Clamping sleeve; 8. Air gun sleep socket; 81. Snap-fit ​​locking groove; 82. Sleep chamber; 83. Adjustment knob; 831. First locking tooth; 832. Adjustment bolt; 9. Bracket. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses an integrated miniature hot air desoldering station.

[0033] Reference Figure 1 and Figure 2 An integrated miniature hot air desoldering station includes a housing 1, a turbine centrifugal fan 2 integrated within the housing 1, a hot air gun handle 3 fixedly connected to the housing 1, a heating pen refill module 4 detachably mounted at the front end of the hot air gun handle 3, and a nozzle assembly 5 installed at the air outlet of the heating pen refill module 4. The turbine centrifugal fan 2 is connected to the heating pen refill module 4 via a connecting air pipe, and the air outlet diameter of the nozzle assembly 5 is 1mm-3mm.

[0034] Reference Figure 2The housing 1 consists of a left shell 11 and a right shell 12, which are fixed together with bolts. The interior of the housing 1 is hollow. A 7-pin aviation connector 13 is plugged into the housing 1, which is connected to an AC to DC data cable 16 to convert 220V AC power to 24V DC power, thereby powering the equipment and ensuring a stable power supply. The turbine centrifugal fan 2 is integrated inside the housing 1. When the turbine centrifugal fan 2 is started, it generates high-pressure gas, and the speed of the turbine centrifugal fan 2 determines the wind speed of the output gas. An integrated electrical connector 14 is plugged into one end of the housing 1, and the other end of the integrated electrical connector 14 is fixedly connected to the air gun handle 3 to realize the connection of the electrical circuits inside the housing 1 and the air gun handle 3.

[0035] Reference Figure 2 The heated pen refill module 4 includes a heated pen refill body 41 and a snap-fit ​​sealing sleeve 42. The air gun handle 3 has an installation groove, and the heated pen refill body 41 is inserted into the installation groove. When the heated pen refill body 41 is inserted into the groove, the snap-fit ​​sealing sleeve 42 snaps and seals the gap between the side wall of the installation groove and the side wall of the heated pen refill body 41, thereby preventing the air gun handle 3 and the heated pen refill body 41 from separating. When the gas in the air gun handle 3 enters the heated pen refill body 41, the heated pen refill body 41 heats the gas to a specified temperature and finally sprays it out through the nozzle assembly 5, thereby achieving the desoldering of the component.

[0036] Reference Figure 3 The heating pen refill body 41 has a threaded connector on its air outlet. The nozzle assembly 5 includes multiple replaceable nozzle bodies 51. The nozzle bodies 51 are detachably threadedly connected to the threaded connector. The air outlet diameters of the multiple nozzle bodies 51 include 1mm, 1.5mm, 2mm and 3mm. The operator selects the appropriate nozzle body 51 with the appropriate air outlet diameter according to the component to be processed and replaces it on the threaded connector.

[0037] Reference Figure 1 A screen display module 15 is fixedly installed on the housing 1. The screen display module 15 is electrically connected to the air gun handle 3. A detector for detecting the internal gas temperature and wind speed is fixedly installed inside the air gun handle 3. The screen display module 15 is used to display the detection results of the detector, so that the operator can intuitively grasp the status of the equipment.

[0038] Reference Figure 2 The air gun handle 3 is equipped with a function button group 31 for adjusting the internal gas temperature and wind speed level. The function button group 31 is used to adjust the internal gas temperature and wind speed level of the air gun handle 3, and can also switch the functions of the air gun handle 3. The function button group 31 is electrically connected to the screen display module 15, thereby facilitating the adjustment of the parameters of gas temperature and wind speed level.

[0039] Reference Figure 1 and Figure 2 Multiple sets of heating pen refill modules 4 are provided according to different power levels and are used as backups. Multiple sets of heating pen refill modules 4 can be replaced and installed on the handle 3 of the air gun, so that users can choose heating pen refill modules 4 with different power levels to install on the handle 3 of the air gun according to different needs. In this embodiment, the external structure of multiple sets of heating pen refill modules 4 with different power levels is the same, only the internal resistance values ​​are different.

[0040] Reference Figure 1 and Figure 2 The housing 1 is provided with a pen refill holder 6, which is provided with multiple storage slots 61. The storage slots 61 are matched with the shape of the heated pen refill module 4. The multiple storage slots 61 are used to enclose and store the multiple sets of spare heated pen refill modules 4, thereby facilitating the storage and retrieval of the heated pen refill module 4 and avoiding loss or damage.

[0041] Reference Figure 1 and Figure 2 The housing 1 is provided with a refill insert / removal seat 7, which facilitates the insertion and removal of the heated pen refill module 4 from the air gun handle 3. The refill insert / removal seat 7 includes a limiting plate 71 and a retaining sleeve 72. The limiting plate 71 is fixedly installed on the housing 1, and a cavity for placing the heated pen refill module 4 is provided between the limiting plate 71 and the housing 1. The limiting plate 71 has a U-shaped groove 711 that engages with the heated pen refill module 4. A limiting protrusion is provided on one side of the outside of the air gun handle 3. The bottom of the limiting plate 71 abuts against the limiting protrusion and prevents the heating pen refill module 4 from sliding along the length direction of the air gun handle 3. This allows the air gun handle 3 to separate from the heating pen refill module 4 when the air gun handle 3 is pulled away from the limiting plate 71. In this embodiment, the limiting plate 71 mainly facilitates the separation of the high-temperature heating pen refill module 4 from the air gun handle 3. Two sets of U-shaped grooves 711 are provided and symmetrically opened on the limiting plate 71.

[0042] Reference Figure 1 and Figure 2 A retaining sleeve 72 is disposed on the limiting plate 71. The retaining sleeve 72 is used to place the heating pen refill module 4. The retaining sleeve 72 prevents the heating pen refill module 4 from moving along the length direction of the air gun handle 3 when the air gun handle 3 slides towards the retaining sleeve 72, thereby facilitating the fixed installation of the heating pen refill module 4 into the air gun handle 3. (Refer to...) Figure 1 and Figure 2A sleep mode holder 8 is rotatably mounted on the housing 1. The sleep mode holder 8 has a locking groove 81. A guide plate is provided on the side of the locking groove 81 near the air gun handle 3. A conductive ring that is energized with the conductive plate is provided on the air gun handle 3. When the locking groove 81 abuts against the air gun handle 3, the conductive ring and the conductive plate are electrically connected, so that the sleep mode holder 8 and the air gun handle 3 are electrically grounded. This allows the air gun handle 3 to control the heating pen refill module 4 to enter the sleep state. A sleep chamber 82 is provided between the air gun sleep mode holder 8 and the housing 1. The heating pen refill module 4 passes through the locking groove 81 and enters the sleep chamber 82. The locking groove 81 locks the air gun handle 3, preventing the air gun handle 3 from moving. This allows the air gun in the working state to enter the standby sleep mode, reducing energy consumption.

[0043] Reference Figure 1 and Figure 2 The housing 1 is provided with an adjustment knob 83 for adjusting the angle of the air gun sleep seat 8. In this embodiment, one end of the air gun sleep seat 8 is rotated and mounted on the housing 1. The adjustment knob 83 includes a first locking tooth 831, a second locking tooth, and an adjustment bolt 832. The first locking tooth 831 is located on the side of the air gun sleep seat 8 away from the rotation axis. The second locking tooth is fixedly mounted on the side wall of the housing 1 and cooperates with the first locking tooth 831. When the first locking tooth 831 abuts against the second locking tooth, it locks the angle of the air gun sleep seat 8, thereby preventing the air gun sleep seat 8 from rotating. The adjustment bolt... 832 is rotatably mounted on the housing 1 and threadedly connected to the air gun sleep seat 8. The housing 1 can be slightly deformed. When the adjusting bolt 832 rotates, the distance between the housing 1 and the air gun sleep seat 8 is adjusted, thereby adjusting the distance between the first locking tooth 831 and the second locking tooth. When the first locking tooth 831 and the second locking tooth are separated, the air gun sleep seat 8 can rotate freely. When the first locking tooth 831 and the second locking tooth are engaged and locked, the air gun sleep seat 8 cannot rotate. Finally, the angle of the air gun sleep seat 8 can be adjusted to adapt to different operating habits and scenarios, and improve the ease of operation.

[0044] Reference Figure 1 The other end of the electrical integrated connector 14 is fixedly connected to the air gun handle 3 via a connecting air pipe, thus achieving air communication between the turbine centrifugal fan 2 and the air gun handle 3. A bracket 9 is fixedly installed on the housing 1 by bolts. The bracket 9 is used to support and fix the connecting air pipe, thereby preventing the connecting air pipe from getting tangled or shaking, which would affect the operation.

[0045] The working principle of this application embodiment is as follows:

[0046] By installing the heated pen tip module 4 into the hot air gun handle 3, and then selecting a suitable air resistance body to install on the threaded connector, high-pressure gas is generated by the turbine centrifugal fan 2 integrated in the housing 1, and then delivered to the heated pen tip module 4 on the front end of the hot air gun handle 3 through the connecting air pipe. The heated pen tip module 4 heats the gas to the set temperature, and finally blows it out through the air nozzle body 51. This reduces the size of the equipment, improves the portability of the hot air desoldering station, and precisely controls the heating range of the air nozzle.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated miniature hot air desoldering station, characterized in that: The device includes a housing (1), a turbine centrifugal fan (2) integrated within the housing (1), a wind gun handle (3) fixedly connected to the housing (1), a heating pen refill module (4) detachably disposed at the front end of the wind gun handle (3), and a nozzle assembly (5) installed at the air outlet of the heating pen refill module (4). The turbine centrifugal fan (2) is connected to the heating pen refill module (4) via a connecting air pipe. The air outlet diameter of the nozzle assembly (5) is 1mm-3mm.

2. The integrated miniature hot air desoldering station according to claim 1, characterized in that: The heating pen refill module (4) has a threaded connector on its air outlet. The nozzle assembly (5) includes multiple replaceable nozzle bodies (51). The nozzle bodies (51) are detachably threadedly connected to the threaded connector. The air outlet diameters of the multiple nozzle bodies (51) include 1mm, 1.5mm, 2mm and 3mm.

3. The integrated miniature hot air desoldering station according to claim 1, characterized in that: The heated pen refill module (4) is provided in multiple sets according to different power and is used as a spare. The multiple sets of heated pen refill modules (4) can be replaced on the handle (3) of the air gun. The housing (1) is provided with a pen refill holder (6) for placing the spare heated pen refill module (4). The pen refill holder (6) is provided with multiple storage slots (61) that match the shape of the heated pen refill module (4).

4. The integrated miniature hot air desoldering station according to claim 3, characterized in that: The housing (1) is provided with a pen refill socket (7), the pen refill socket (7) includes: A limiting plate (71) is provided on the housing (1). A cavity for placing the heating pen refill module (4) is provided between the limiting plate (71) and the housing (1). A U-shaped groove (711) is provided on the limiting plate (71) to engage with the heating pen refill module (4). A limiting protrusion is provided on the side of the heating pen refill module (4) outside the air gun handle (3). The bottom of the limiting plate (71) abuts against the limiting protrusion and prevents the heating pen refill module (4) from sliding along the length direction of the air gun handle (3). A retaining sleeve (72) is provided on a limiting plate (71) and used to place a heated pen refill module (4). The retaining sleeve (72) prevents the heated pen refill module (4) from moving when the air gun handle (3) slides toward the retaining sleeve (72) and inserts the heated pen refill module (4) into the air gun handle (3).

5. The integrated miniature hot air desoldering station according to claim 1, characterized in that: The housing (1) is provided with a screen display module (15), which is electrically connected to the air gun handle (3) and is used to display the temperature parameters and wind speed of the gas inside the air gun handle (3).

6. The integrated miniature hot air desoldering station according to claim 5, characterized in that: The air gun handle (3) is provided with a group of function buttons (31) for adjusting the internal gas temperature and wind speed level. The screen display module (15) and the group of function buttons (31) are used together to set and display the temperature parameters and wind speed level.

7. The integrated miniature hot air desoldering station according to claim 1, characterized in that: The housing (1) is rotatably provided with a wind gun sleep seat (8). The wind gun sleep seat (8) is provided with a locking groove (81) for locking the wind gun handle (3). When the locking groove (81) abuts against the wind gun handle (3), it is electrically grounded and connected, and the wind gun handle (3) controls the heating pen refill module (4) to enter the sleep state. A sleep cavity (82) is provided between the wind gun sleep seat (8) and the housing (1). The heating pen refill module (4) passes through the locking groove (81) and enters the sleep cavity (82). The housing (1) is provided with an adjustment knob (83) for adjusting the angle of the wind gun sleep seat (8).

8. The integrated miniature hot air desoldering station according to claim 1, characterized in that: The turbine centrifugal fan (2) is connected to the air gun handle (3) via a connecting air pipe, and the housing (1) is provided with a bracket (9) for fixing and supporting the connecting air pipe.