Handheld wireless high-frequency welding machine for welding air conditioner copper pipe

Abstract

The handheld wireless high-frequency welding machine comprises a handheld handle, a bin body is arranged at the upper end of the handheld handle, a lithium battery power supply system is arranged at the lower end of the handheld handle, a mounting opening is formed in the end of the bin body, and a welding ring is mounted at the mounting opening; a touch screen and a switch button are further arranged on the surface of the bin body; a wireless control module is further arranged in the bin body and used for remotely setting parameters and monitoring, and an integrated chip is arranged in the front end of the bin body and used for controlling the working state. The device is suitable for field operation, particularly operation in high-risk environments such as narrow spaces, high altitudes and anti-explosion warehouses, safe and rapid heating can be achieved, the welding temperature is accurately controlled, the welding quality is improved, construction is safe, convenient and free of open fire, lithium battery and 220V dual-mode power supply is adopted, energy consumption is reduced, carbon emission is reduced, on the premise that performance is guaranteed, the manufacturing cost is reduced, and the device is suitable for popularization and application. The method is suitable for large-scale popularization.

Description

Technical Field

[0001] The present invention relates to a welding device, specifically a handheld wireless high-frequency welding machine for welding air-conditioning copper pipes. Background Art

[0002] The welding of air-conditioning copper pipes is a key link in air-conditioning manufacturing and maintenance. Traditional welding equipment has problems such as poor portability, complex operation, and high energy consumption. Summary of the Invention

[0003] To solve the defects of the above-mentioned prior art, the present invention provides a handheld wireless high-frequency welding machine for welding air-conditioning copper pipes. The present invention is suitable for on-site operations, especially in high-risk environments such as narrow spaces, high altitudes, and explosion-proof warehouses. It can heat safely and quickly, accurately control the welding temperature, improve the welding quality, and the construction is safe, convenient, and fire-free. It is powered by a lithium battery, reducing energy consumption and carbon emissions. On the premise of ensuring performance, the manufacturing cost is reduced, making it suitable for large-scale promotion.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solutions: A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes, including a handheld handle. The upper end of the handheld handle is provided with a housing, and the lower end is provided with a lithium battery power supply system. An installation port is provided at the end of the housing, and a welding ring is installed in the installation port; a touch screen and a switch button are also provided on the surface of the housing; a wireless control module is further provided inside the housing for remotely setting parameters and monitoring, and an integrated chip is provided inside the front end of the housing for controlling the working state.

[0005] The upper end of the handheld handle is integrally connected to the end of the housing, and the handheld handle is hollow for threading cables.

[0006] A high-frequency inverter is installed inside the housing, and the high-frequency inverter is close to the installation port; the high-frequency inverter uses IGBT high-frequency inversion technology to convert direct current into high-frequency alternating current of 100 - 300 kHz, and the power range is adjustable from 0.5 - 3 kW.

[0007] A cooling fan is installed inside the housing. A cooling opening is provided at the position of the housing corresponding to the cooling fan. The cooling opening is provided with a dust-proof net, and the cooling opening faces the rear end of the housing; the cooling fan uses a micro-turbine fan and is combined with a graphene heat-conducting sheet.

[0008] An infrared thermometer is provided on the outer wall of the installation port.

[0009] The lithium battery power supply system is detachably installed at the bottom of the handheld handle. The lithium battery power supply system is equipped with a wireless charging base and internally integrates an intelligent power management chip to real-time display the remaining power and working state.

[0010] The integrated chip is provided with a leakage protection and overcurrent protection circuit.

[0011] The handheld handle and the housing are made of a combination of carbon fiber reinforced plastic and aluminum alloy.

[0012] The wireless control module integrates a Bluetooth or Wi-Fi module and supports terminal connection.

[0013] In summary, the present invention has achieved the following technical effects:

[0014] The present invention adopts high-frequency induction heating technology, modular design and lightweight materials, realizing the requirements of efficient, safe and low-cost copper pipe welding, especially suitable for air conditioner installation and repair scenarios, and its comprehensive performance is superior to traditional flame welding and existing high-frequency welding machines;

[0015] The present invention combines the advantages of high-frequency welding technology and lithium battery power supply system, providing a portable, efficient and energy-saving handheld wireless high-frequency welding machine. This device is not only applicable to air conditioner copper pipe welding, but also can be extended to the welding field of other metal pipes, with broad market prospects;

[0016] The present invention is suitable for on-site operations, especially in high-risk environments such as narrow spaces, high altitudes, and explosion-proof warehouses. It can heat safely and quickly, precisely control the welding temperature, improve welding quality, and ensure construction safety and convenience without open flames. Using lithium battery power supply reduces energy consumption and carbon emissions. On the premise of ensuring performance, it reduces manufacturing costs and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a handheld wireless high-frequency welding machine for welding air conditioner copper pipes;

[0018] Figure 2 is Figure 1 a partial cross-sectional schematic diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present invention in detail with reference to the drawings.

[0020] This specific embodiment is only an explanation of the present invention and does not limit the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not 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 one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0023] In the present invention, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] Embodiment:

[0026] Figure 1 is a handheld wireless high-frequency welding machine for welding air-conditioning copper pipes, Figure 2 is Figure 1The partial cross-sectional schematic diagram includes a hand-held handle 1, a storage body 2 is provided at the upper end of the hand-held handle 1, and a lithium battery power supply system 6 is provided at the lower end. A mounting port 4 is provided at the end of the storage body 2, and a welding ring 5 is installed at the mounting port 4; a touch screen 3 and a switch button 11 are also provided on the surface of the storage body 2; a wireless control module is also provided in the storage body 2 for remote parameter setting and monitoring, and an integrated chip is provided inside the front end of the storage body 2 for controlling the working state.

[0027] Specifically, the upper end of the hand-held handle 1 is integrally connected to the end of the warehouse body 2, and the hand-held handle 1 is hollow for passing cables.

[0028] The hand-held handle 1 and the housing 2 form a 7-shaped structure, which is convenient for workers to hold. The mounting opening 4 and the welding ring 5 are arranged at the front end of the 7-shaped structure, which will not burn workers and is convenient to use.

[0029] A high-frequency inverter 8 is installed inside the warehouse body 2, and the high-frequency inverter 8 is close to the installation port 4; the high-frequency inverter 8 uses IGBT high-frequency inverter technology to convert direct current into 100-300kHz high-frequency alternating current, and the power range is adjustable from 0.5 to 3kW.

[0030] The high frequency inverter 8 of the present invention adopts soft switching technology to reduce energy loss and improve efficiency to more than 90%

[0031] A cooling fan 9 is installed inside the warehouse 2. A cooling port is provided at the position of the warehouse 2 corresponding to the cooling fan 9. The cooling port is provided with a dustproof net 10 and faces the rear end of the warehouse 2. The cooling fan 9 adopts a micro-turbo fan and is equipped with a graphene heat conducting sheet. The high-frequency alternating magnetic field is used to achieve local rapid heating of the copper tube, reduce the heat-affected area, and improve the welding accuracy. The built-in infrared temperature sensor monitors the temperature of the welding area in real time to ensure the welding quality.

[0032] The present invention adopts a combination of a micro-turbo fan + a graphene heat conductive sheet to achieve noiseless active heat dissipation, and also sets an overheating protection threshold. For example, when the coil temperature is greater than 120°C, the power is automatically reduced to prevent damage due to excessive internal temperature.

[0033] An infrared thermometer 7 is disposed on the outer wall of the installation opening 4 .

[0034] The present invention has a built-in infrared thermometer 7, or an infrared temperature sensor, and a thermocouple dual feedback system to monitor the temperature of the welding area in real time, and automatically adjust the output power based on the PID algorithm to avoid overheating, deformation or oxidation of the copper tube.

[0035] The lithium battery power supply system 6 is detachably installed at the bottom of the handheld handle 1. The lithium battery power supply system 6 is equipped with a wireless charging base and has an internally integrated intelligent power management chip to display the remaining power and working status in real time.

[0036] The present invention adopts a lithium battery power supply system 6, which uses a lithium polymer battery (48V / 3000mAh), supports fast charging, is equipped with a wireless charging base, is compatible with the Qi standard, improves portability, integrates an intelligent power management chip, and can display the remaining power and working status in real time. It uses a detachable high-capacity lithium battery for power supply, supports continuous operation for more than 30 minutes, and does not require frequent charging. The lithium battery power supply system 6 is arranged at the lower part to balance the center of gravity. The lithium battery power supply system 6 also monitors the battery status in real time to prevent overcharging, over-discharging and overheating, and automatically enters the low-power state in the standby mode to extend the battery life.

[0037] The integrated chip is provided with a leakage protection and overcurrent protection circuit, which meets the CE certification standard, and also has electromagnetic shielding to avoid high-frequency interference with other devices.

[0038] The handheld handle 1 and the bin body 2 are made of a combination of carbon fiber reinforced plastic and aluminum alloy, taking into account both strength and weight, and the overall weight is within 1.5KG, which is convenient for single-handed operation.

[0039] The wireless control module integrates a Bluetooth or Wi-Fi module and supports terminal connection.

[0040] The present invention supports connection with mobile phones or tablets to achieve remote parameter setting and monitoring.

[0041] The installation port of the present invention is adapted to various different specifications of welding rings to meet the welding requirements of copper pipes with a diameter ranging from 3mm to 25mm. Different sizes of quick-change coils (such as spiral and flat shapes) are provided to adapt to copper pipes of different diameters, and energy transmission is achieved through magnetic coupling. The welding ring is wound with silver-plated copper wire to reduce the skin effect loss of high-frequency current and improve the heating efficiency.

[0042] The present invention is also provided with a touch screen 3, which adopts an OLED touch screen to display power, temperature, battery status and preset welding modes, such as "thin-walled copper pipe" and "thick-walled copper pipe", supports Bluetooth connection to the mobile phone APP, and provides functions of welding parameter recording and fault diagnosis.

[0043] The present invention adopts high-frequency induction heating technology, modular design and lightweight materials to meet the requirements of efficient, safe and low-cost copper pipe welding, especially suitable for air-conditioning installation and maintenance scenarios, and its comprehensive performance is superior to traditional flame welding and existing high-frequency welding machines.

[0044] The present invention is suitable for on-site operations, especially in high-risk environments such as narrow spaces, high altitudes, and explosion-proof warehouses. It can heat safely and quickly, accurately control the welding temperature, improve the welding quality and construction safety, is flameless, uses a lithium battery for power supply, reduces energy consumption, reduces carbon emissions, and reduces the manufacturing cost on the premise of ensuring performance, making it suitable for large-scale promotion.

[0045] The present invention also provides a transformer and a cable plug at the handle. The transformer can supply power to electronic devices and can be used by simply plugging it into a socket. When the lithium battery runs out of power, it can be plugged into the socket to continue use.

[0046] The above description is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes, characterized in that: It includes a hand-held handle (1). At the upper end of the hand-held handle (1), a bin body (2) is provided, and at the lower end, a lithium battery power supply system (6) is provided. At the end of the bin body (2), an installation opening (4) is provided, and a welding ring (5) is installed at the installation opening (4); on the surface of the bin body (2), a touch screen (3) and a switch button (11) are also provided; inside the bin body (2), a wireless control module is also provided for remotely setting parameters and monitoring, and an integrated chip is provided inside the front end of the bin body (2) for controlling the working state.

2. The handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: The upper end of the hand-held handle (1) is integrally formed and connected to the end of the bin body (2). The hand-held handle (1) is hollow for threading cables.

3. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: A high-frequency inverter (8) is installed inside the bin body (2). The high-frequency inverter (8) is close to the installation opening (4); the high-frequency inverter (8) uses IGBT high-frequency inversion technology to convert direct current into high-frequency alternating current of 100 - 300 kHz, and the power range is adjustable from 0.5 - 3 kW.

4. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: A cooling fan (9) is installed inside the bin body (2). At the position of the bin body (2) corresponding to the cooling fan (9), a cooling opening is provided. A dust-proof net (10) is provided at the cooling opening, and the cooling opening faces the rear end of the bin body (2); the cooling fan (9) adopts a micro-turbine fan and is combined with a graphene heat-conducting sheet.

5. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: An infrared thermometer (7) is provided on the outer wall of the installation opening (4).

6. The hand-held wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, wherein: The lithium battery power supply system (6) is detachably installed at the bottom of the hand-held handle (1). The lithium battery power supply system (6) is equipped with a wireless charging base and integrates an intelligent power management chip inside to display the remaining power and working state in real time.

7. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: The integrated chip is provided with a leakage protection and over-current protection circuit.

8. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: The hand-held handle (1) and the bin body (2) are made of a combination of carbon fiber-reinforced plastic and aluminum alloy.

9. A handheld wireless high-frequency welding machine for welding air-conditioning copper pipes according to claim 1, characterized in that: The wireless control module integrates a Bluetooth or Wi-Fi module and supports terminal connection.

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