Soldering iron with welding and tin sucking functions

By designing a soldering iron with both welding and tin absorption functions, the problem of welding and tin absorption operations in the prior art requires two-hand operation and frequent switching of tools, and one-hand operation and fast mode switching are realized, which improves production efficiency and controls thermal stress damage between the solder joints.

CN120190446APending Publication Date: 2025-06-24SHENZHEN ZHENHUA MICROELECTRONICS
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Patent Information

Application Number
CN202510504890.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-06-24

AI Technical Summary

Technical Problem

In existing electronic production, welding and tin absorption operations require two-hand operation and frequent switching of tools, resulting in inefficient production.

Method used

Design a soldering iron with both soldering and tin suction functions, and realizes one-handed operation and fast mode switching through the combination of a soldering iron head, handle, tin suction belt, tin suction rod and telescopic switch.

Benefits of technology

It realizes rapid switching mode during welding to perform tin absorption operation, reduces tool switching time, greatly improves production efficiency, and accurately controls the conveying rate of tin absorption belts, avoids thermal stress damage to the solder joints.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of electronic production, and particularly discloses soldering iron with welding and tin sucking functions, which comprises a soldering iron head, a handle, a tin sucking belt, a tin sucking rod and a tin sucking rod telescopic switch, the soldering bit is connected with the handle, the tin sucking rod telescopic switch is connected with the tin sucking belt through the tin sucking rod, the tin sucking rod telescopic switch is connected with the handle in a sliding mode, and the tin sucking rod telescopic switch drives the tin sucking belt to be close to or away from the soldering bit in the sliding process. According to the soldering iron, the modes can be rapidly switched in the welding process for tin sucking operation, a user can operate the soldering iron with one hand, the time for switching tools is shortened, and the production efficiency is greatly improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of electronic production, and particularly to a soldering iron having both soldering and desoldering functions. Background Art

[0002] Desoldering is a common operation in electronic production, usually used for purposes such as rework and gold removal. Common desoldering methods include using equipment such as desoldering guns, soldering irons, and hot air guns in combination with desoldering tapes. A desoldering gun uses negative pressure to desolder, so the equipment is heavy and has limitations in use on large areas and uneven positions. Soldering irons are similar to hot air guns and both need to be used in combination with desoldering tapes. The biggest drawback of this method is the complex operation. The operator needs to operate the desoldering tape and the soldering iron with both hands respectively and constantly switch to other tools such as tweezers and solder wire, which has a certain impact on production efficiency.

[0003] Therefore, there is an urgent need to provide a technical solution to solve the above problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a soldering iron having both soldering and desoldering functions.

[0005] In a first aspect, the present invention provides a soldering iron having both soldering and desoldering functions, and the technical solution of the soldering iron having both soldering and desoldering functions is as follows:

[0006] It includes: a soldering iron tip, a handle, a desoldering tape, a desoldering rod, and a desoldering rod telescopic switch;

[0007] The soldering iron tip is connected to the handle, the desoldering rod telescopic switch is connected to the desoldering tape through the desoldering rod, the desoldering rod telescopic switch is slidably connected to the handle, and the desoldering rod telescopic switch drives the desoldering tape to approach or move away from the soldering iron tip during the sliding process.

[0008] The beneficial effects of a soldering iron having both soldering and desoldering functions of the present invention are as follows:

[0009] The present invention can quickly switch modes for desoldering operations during the soldering process. The user can operate the soldering iron of this embodiment with one hand, reducing the time for switching tools and greatly improving production efficiency.

[0010] On the basis of the above solution, a soldering iron having both soldering and desoldering functions of the present invention can also be improved as follows.

[0011] In an optional manner, it further includes: a desoldering tape lock;

[0012] The desoldering tape is wound around the front end of the desoldering rod and fixed to the desoldering rod through the desoldering tape lock.

[0013] In an alternative embodiment, it further includes: a heat shield;

[0014] The heat shield is sleeved on the solder suction rod.

[0015] In an alternative embodiment, it further includes: a digital display controller;

[0016] The digital display controller is connected to the solder suction tape and is used to control the conveying speed and direction of the solder suction tape winding around the solder suction rod.

[0017] In an alternative embodiment, the digital display controller is further connected to the soldering iron tip and is used to control the soldering temperature of the soldering iron tip and output and display the soldering temperature.

[0018] In an alternative embodiment, it further includes: a solder suction tape storage box;

[0019] The solder suction tape storage box is used to store unused solder suction tape and recycle used solder suction tape.

[0020] In an alternative embodiment, it further includes: a solder suction rod conveying switch; the solder suction rod conveying switch is arranged on the handle and is used to turn on or off the rotation of the solder suction tape.

[0021] In an alternative embodiment, the digital display controller is further connected to the solder suction rod telescopic switch and the solder suction tape storage box respectively;

[0022] When the solder suction rod telescopic switch drives the solder suction tape to approach the soldering iron tip during sliding and the solder suction rod conveying switch is turned on, the digital display controller controls the solder suction tape storage box to release the solder suction tape; when the solder suction rod telescopic switch drives the solder suction tape to move away from the soldering iron tip during sliding, the digital display controller controls the solder suction tape storage box to recycle the solder suction tape and controls the solder suction rod conveying switch to turn off.

[0023] In an alternative embodiment, when the solder suction rod telescopic switch drives the solder suction tape to approach the soldering iron tip during sliding, the solder suction rod is in contact connection with the soldering iron tip.

[0024] In an alternative embodiment, it further includes: an external power supply; the external power supply is used to supply power to the soldering iron with both soldering and solder suction functions.

[0025] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention. Brief Description of the Drawings

[0026] The accompanying drawings are only used to illustrate the embodiments and are not considered as limiting the present invention. Moreover, throughout the drawings, the same reference signs are used to represent the same components. In the drawings:

[0027] Figure 1 is a schematic structural diagram of an embodiment of a soldering iron with both soldering and desoldering functions according to the present invention;

[0028] Figure 2 is one of the partial structural diagrams of an embodiment of a soldering iron with both soldering and desoldering functions according to the present invention;

[0029] Figure 3 is the second of the partial structural diagrams of an embodiment of a soldering iron with both soldering and desoldering functions according to the present invention;

[0030] Figure 4 is a schematic structural diagram of a desoldering rod;

[0031] Figure 5 is a schematic structural diagram of a desoldering rod head.

[0032] Among them, 1 is a soldering iron tip, 2 is a handle, 3 is a desoldering tape, 4 is a desoldering rod telescopic switch, 5 is a desoldering rod, 6 is a heat insulation cover, 7 is a digital display controller, 8 is a desoldering tape storage box, 9 is a desoldering rod conveying switch, 10 is a desoldering tape lock, and 11 is an external power supply. Specific Embodiments

[0033] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein.

[0034] Figure 1 shows a schematic structural diagram of an embodiment of a soldering iron with both soldering and desoldering functions provided by the present invention. As Figure 1 shown, a soldering iron with both soldering and desoldering functions includes: a soldering iron tip 1, a handle 2, a desoldering tape 3, a desoldering rod telescopic switch 4, and a desoldering rod 5;

[0035] The soldering iron tip 1 is connected to the handle 2, the desoldering rod telescopic switch 4 is connected to the desoldering tape 3 through the desoldering rod 5, the desoldering rod telescopic switch 4 is slidably connected to the handle 2, and the desoldering rod telescopic switch 4 drives the desoldering tape 3 to approach or move away from the soldering iron tip 1 during the sliding process.

[0036] Among them, the soldering iron tip 1 is used to provide soldering heat. In this embodiment, soldering iron tips with different shapes and sizes can be replaced for soldering different parts.

[0037] Among them, the telescopic switch 4 of the solder sucker rod can trigger two modes, namely: welding mode and solder sucking mode. Figure 1 Corresponding to the welding mode, in the welding mode, the telescopic switch 4 of the solder sucker rod is pulled backward (in the direction away from the soldering iron tip 1). Figure 2 Corresponding to the solder sucking mode, in the solder sucking mode, the telescopic switch 4 of the solder sucker rod is pushed forward (in the direction close to the soldering iron tip 1).

[0038] In an optional manner, it further includes: a solder sucking belt buckle 10;

[0039] The solder sucking belt 3 is wound around the front end of the solder sucker rod 5 and fixed on the solder sucker rod 5 through the solder sucking belt buckle 10.

[0040] In an optional manner, it further includes: a heat insulation cover 6;

[0041] The heat insulation cover 6 is sleeved on the solder sucker rod 5.

[0042] Among them, the heat insulation cover 6 can prevent the operator from being scalded during operation, and at the same time prevent the solder beads on the recycled solder sucking belt 3 from splashing.

[0043] In an optional manner, it further includes: a digital display controller 7;

[0044] The digital display controller 7 is connected to the solder sucking belt 3 and is used to control the conveying speed and direction of the solder sucking belt 3 wound around the solder sucker rod 5.

[0045] Among them, the conveying direction includes: clockwise rotation or counterclockwise rotation. The conveying speed can be adjusted according to actual needs and is not limited here. The digital display controller 7 can specifically determine the conveying speed and direction to be adjusted through the PID control algorithm, combined with the current conveying speed and the target conveying speed, and the current conveying direction and the target conveying direction.

[0046] In an optional manner, the digital display controller 7 is also connected to the soldering iron tip 1 and is used to control the welding temperature of the soldering iron tip 1 and output and display the welding temperature.

[0047] Among them, the connection between the digital display controller 7 and the soldering iron tip 1 can be a wired connection (connecting the soldering iron tip 1 and the digital display controller 7 through a cable to achieve the transmission of electrical signals and power), or a wireless connection (such as Bluetooth, Wi-Fi, etc. to achieve the connection and control between the soldering iron tip 1 and the digital display controller 7), and is not limited here.

[0048] Specifically: ① A temperature sensor, such as a thermocouple or a thermistor, is built into the soldering iron tip 1. These sensors can sense the temperature change of the soldering iron tip 1 in real time, convert it into an electrical signal, and send it to the digital control display 7. ② The digital display controller 7 converts the analog signal (electrical signal) into a digital signal through an internal analog-to-digital converter (ADC). ③ A dedicated control algorithm (such as a PID control algorithm) runs inside the digital display controller 7, which is used to calculate the required power adjustment amount according to the set target temperature and the actually measured temperature value. ④ According to the calculation result of the PID control algorithm, the digital display controller 7 adjusts the power output to the soldering iron tip 1, which can be specifically achieved by controlling the current or voltage of the heating element (such as a resistance wire or a PTC element) of the soldering iron tip 1. When the temperature is lower than the set value, the digital display controller 7 increases the power output to heat up the soldering iron tip 1; when the temperature is higher than the set value, the digital display controller 7 reduces the power output to cool down the soldering iron tip 1. ⑤ The digital display controller 7 has a digital display function, which can display the current temperature and the target temperature of the soldering iron tip 1 in real time, enabling the user to intuitively understand the working state of the soldering iron tip 1 and make adjustments as needed.

[0049] In an alternative embodiment, it further includes: a solder wick storage box 8;

[0050] The solder wick storage box 8 is used to store the unused solder wick 3 and recycle the used solder wick 3.

[0051] In an alternative embodiment, it further includes: a solder wick conveying switch 9; the solder wick conveying switch 9 is arranged on the handle 2, and the solder wick conveying switch 9 is used to turn on or off the rotation of the solder wick 3.

[0052] In an alternative embodiment, the digital display controller 7 is further connected to the solder wick telescopic switch 4 and the solder wick storage box 8 respectively;

[0053] When the solder wick telescopic switch 4 drives the solder wick 3 to approach the soldering iron tip 1 during sliding and the solder wick conveying switch 9 is turned on, the digital display controller 7 controls the solder wick storage box 8 to release the solder wick 3; when the solder wick telescopic switch 4 drives the solder wick 3 to move away from the soldering iron tip 1 during sliding, the digital display controller 7 controls the solder wick storage box 8 to recycle the solder wick 3 and controls the solder wick conveying switch 9 to turn off.

[0054] Among them, the digital display controller 7 is electrically connected to the solder wick telescopic switch 4. When the solder wick telescopic switch 4 is pushed forward or pulled backward, the digital display controller 7 adjusts to release or tighten a section of the solder wick 3 respectively to ensure the self-tightening of the solder wick 3. For example Figure 3As shown, the solder sucker rod conveying switch 9 is located on the other side of the handle 2 (opposite to the solder sucker rod telescopic switch 4). Pressing the switch can control the rotation of the solder sucker tape 3, and the rotation direction of the solder sucker tape after pressing the switch can be set by the digital display controller 7. When the solder sucker rod telescopic switch 4 is in the rearward pull state, the digital display controller 7 locks the solder sucker rod conveying switch 9 to prevent accidental touch by personnel.

[0055] In an optional manner, when the solder sucker rod telescopic switch 4 drives the solder sucker rod 4 to approach the soldering iron head 1 during the sliding process, the solder sucker tape 3 is in contact connection with the soldering iron head 1.

[0056] In an optional manner, it further includes: an external power supply 11; the external power supply 11 is used to supply power to the soldering iron with both soldering and solder sucking functions.

[0057] As Figure 4 shown, there are two sections of connection between the solder sucker rod telescopic switch 4 and the solder sucker rod 5: one is a rigid connection with a rotating shaft 41, and the other is a flexible connection with a spring 42. The rigid connection is used to enable the solder sucker rod 5 to displace with the forward push and rearward pull of the solder sucker rod telescopic switch 4 relative to the handle 2. The flexible connection is used for the contact between the soldering iron head 1 and the solder sucker rod head 51 during operation. As Figure 5 shown, the solder sucker rod head 51 extends to contact the soldering iron head in the solder sucking mode and retracts into the solder sucker rod 5 in the soldering mode. The solder sucker rod head 51 is a thin metal sheet, which has the characteristics of high strength and fast heat conduction. When the soldering iron head 1 contacts the solder sucker rod head 51, heat can be quickly conducted to the solder sucker rod head 51. The shape of the solder sucker rod head 51 is similar to the projection shape of the soldering iron head 1 to ensure tight fit when the soldering iron head 1 contacts the solder sucker rod head 51 and to ensure the heat transfer efficiency. The solder sucker rod lock 10 can be detached from the solder sucker rod 5, and there are channels in the up and down directions of the solder sucker rod 5. The solder sucker tape 3 can pass through the channels to ensure that the solder sucker tape 3 will not fall off the solder sucker rod 5 during operation.

[0058] It should be noted that the working principle and implementation method of a soldering iron with both soldering and solder sucking functions using this embodiment include:

[0059] ① Install a soldering iron head 1 with a suitable shape, turn on the external power supply 11 and the digital display controller 7, set the working temperature of the soldering iron head 1 and the conveying speed of the solder sucker tape 3, and turn on the heating.

[0060] ② Pull the solder sucker rod telescopic switch 4 rearward to retract the solder sucker rod 5 into the handle 2. At this time, it is in the soldering mode, and soldering operations can be performed according to a conventional soldering iron.

[0061] ③Push the telescopic switch 4 of the solder suction rod forward to push the solder suction rod 5 out of the handle 2. At this time, it is in the solder suction mode, and there is a certain distance between the soldering iron tip 1 and the solder suction rod tip 51. After the solder suction tape 3 is self-tightened by the device, use the solder suction rod tip 51 to press against the solder joint, and then gently press the device downward. Since the solder suction rod 5 has a spring structure, the soldering iron tip 1 can displace relative to the solder suction rod tip 51 under pressure to achieve their contact. Since the solder suction rod tip 51 is made of a high thermal conductivity material, it can heat up rapidly. At this time, the soldering iron tip 1, the solder suction tape 3, the solder suction rod tip 51, and the solder joint are in contact with each other, and heat is conducted backward sequentially from the soldering iron tip 1.

[0062] ④Wait for a few seconds until the solder suction rod 5 has heated up and the solder joint has melted. At this time, while the operator continues to firmly press against the solder joint, turn on the solder suction rod conveyor switch 9 to rotate the solder suction tape 3 forward. At this time, the solder suction tape 3 passes through the heated solder suction rod 5, and the solder on the solder joint can be sucked away. During this process, a new solder suction tape 3 is sent out from the solder suction tape storage box 8, and at the same time, the used solder suction tape 3 is recycled to the solder suction tape storage box 8.

[0063] ⑤After all the solder at the solder joint has been sucked away, turn off the solder suction rod conveyor switch 9, and the solder suction tape 3 stops rotating, completing the solder suction work at this position.

[0064] ⑥Continue to repeat the above operations to perform solder suction on other positions. After the solder suction tape 3 is used up, the solder suction tape 3 can be replaced in the solder suction tape storage box 8.

[0065] The technical solution of this embodiment has the following technical effects:

[0066] ①Retain the properties of a conventional soldering iron, and the soldering iron tip can be freely replaced for welding, solder suction, or gold removal at various positions. It is flexible and widely applicable.

[0067] ②It can semi-automatically convey the solder suction tape and can be operated with one hand, allowing the operator to use more other tools simultaneously, improving efficiency.

[0068] ③It can flexibly switch between the welding mode and the solder suction mode, with flexible operation, saving the time for the operator to switch tools.

[0069] ④It can more precisely control the conveying speed of the solder suction tape, thereby controlling the solder suction time and avoiding thermal stress damage to the solder joint caused by too long solder suction time.

[0070] ⑤The solder suction rod lock can prevent the lateral slip of the solder suction tape. It is better controlled than the traditional method.

[0071] ⑥The solder suction tape can be used continuously, increasing the utilization rate and saving costs.

[0072] ⑦The device integrates most of the control components, the solder suction tape storage box and other peripherals, reducing the weight of the handle and being suitable for large-scale operations.

[0073] ⑧ The design of the heat shield can prevent scalding and avoid the splashing of solder balls during the recycling of the solder sucking tape.

[0074] The technical solution of this embodiment can quickly switch modes for solder sucking operations during the soldering process. The user can operate the soldering iron of this embodiment with one hand, reducing the time for switching tools and greatly improving production efficiency. In addition, during the operation, the user can effectively control the time of the solder sucking process by controlling the conveyance of the solder sucking tape, thereby reducing the occurrence of thermal stress damage, and there is no need for manual holding of the solder sucking tape, avoiding the risk of scalding.

[0075] The above description is only a preferred embodiment of the present invention and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of disclosure involved in the present invention is not limited to the technical solution formed by the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present invention.

[0076] It should be noted that the terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects and represent a limitation on a specific order or sequence. Under appropriate circumstances, the order of use of similar objects can be interchanged so that the embodiments of this application described here can be implemented in an order other than the illustrated or described order.

[0077] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A soldering iron having both soldering and tin-absorbing functions, characterized in that: include: Soldering iron tip, handle, desoldering ribbon, desoldering rod and desoldering rod telescopic switch; The soldering iron tip is connected to the handle, the tin suction rod telescopic switch is connected to the tin suction ribbon through the tin suction rod, the tin suction rod telescopic switch is slidably connected to the handle, and the tin suction rod telescopic switch drives the tin suction ribbon to approach or move away from the soldering iron tip during the sliding process.

2. The soldering iron having both soldering and tin-absorbing functions according to claim 1, characterized in that: Also includes: Desoldering belt lock buckle; The tin-absorbing tape is wound around the front end of the tin-absorbing rod and is fixed on the tin-absorbing rod through the tin-absorbing tape lock buckle.

3. The soldering iron having both soldering and tin-absorbing functions according to claim 1, characterized in that: Also includes: Heat shield; The heat insulation cover is sleeved on the solder absorbing rod.

4. The soldering iron having both soldering and tin-absorbing functions according to claim 1, characterized in that: Also includes: Digital display controller; The digital display controller is connected to the tin-absorbing tape and is used to control the conveying speed and conveying direction of the tin-absorbing tape wrapped around the tin-absorbing rod.

5. The soldering iron having both soldering and tin-absorbing functions according to claim 4, characterized in that: The digital display controller is also connected to the soldering iron tip, and is used to control the soldering temperature of the soldering iron tip and output and display the soldering temperature.

6. The soldering iron having both soldering and tin-absorbing functions according to claim 4, characterized in that: Also includes: Desoldering tape storage box; The desoldering tape storage box is used for storing unused desoldering tape and recycling used desoldering tape.

7. The soldering iron having both soldering and tin-absorbing functions according to claim 6, characterized in that: Also includes: The tin suction rod conveying switch is arranged on the handle, and the tin suction rod conveying switch is used to turn on or off the rotation of the tin suction belt.

8. The soldering iron having both soldering and tin-absorbing functions according to claim 7, characterized in that: The digital display controller is also connected to the tin-absorbing rod telescopic switch and the tin-absorbing tape storage box respectively; When the tin suction rod telescopic switch drives the tin suction ribbon close to the soldering iron tip during the sliding process and the tin suction rod conveying switch is turned on, the digital display controller controls the tin suction ribbon storage box to release the tin suction ribbon; when the tin suction rod telescopic switch drives the tin suction ribbon away from the soldering iron tip during the sliding process, the digital display controller controls the tin suction ribbon storage box to recycle the tin suction ribbon and controls the tin suction rod conveying switch to be closed.

9. The soldering iron having both soldering and tin-absorbing functions according to claim 1, characterized in that: When the tin-absorbing rod telescopic switch drives the tin-absorbing belt to approach the soldering iron tip during the sliding process, the tin-absorbing rod is in contact and connection with the soldering iron tip.

10. The soldering iron having both soldering and tin-absorbing functions according to any one of claims 1 to 9, characterized in that: Also includes: External power supply; The external power supply is used to supply power to the soldering iron having both soldering and tin-absorbing functions.