Multifunctional tin removing device

Abstract

The application discloses a multifunctional tin removing device, characterized in that the device comprises a gas guide part and a gas bag part, the gas guide part is composed of a hard pipe and a sleeve pipe, one end of the gas guide part is the hard pipe and the other end is the sleeve pipe, the hard pipe is a hollow pipe and is provided with an expansion part at one end, the sleeve pipe is made of elastic material, the expansion part of the hard pipe is connected with the sleeve pipe, the gas bag part is composed of a gas bag and a connecting port, and the gas bag is a hollow structure made of elastic material. The gas guide part is installed at the connecting port, and the installation direction of the gas guide part on the gas bag part has two kinds, one is that the hard pipe end of the gas guide part is outside the gas bag, and the other is that the sleeve pipe end of the gas guide part is outside the gas bag. The application provides a multifunctional tin removing device, the hard and soft blow nozzles are arranged, the device has a wider application scene, the added metal hard pipe is more heat-resistant and can be directly contacted with an electric soldering iron, the shortcomings that a high hand-eye coordination is required in a traditional tin removing process are improved, and the working strength of a user and the learning cost of a novice are reduced.

Description

Technical Field

[0001] This invention relates to circuit soldering tools, and in particular to a multifunctional desoldering device. Background Technology

[0002] With the development of technology, people have more and more opportunities to come into contact with circuits. Circuits are made by soldering electrical components onto circuit boards. If some components on the circuit board are damaged, people need to replace the faulty components. The first step in removing components from the circuit board is to remove the solder from the component pins.

[0003] Common desoldering methods include desoldering pumps, desoldering wicks, or hollow pins. Desoldering wicks are mainly used to remove residual solder, but they are relatively expensive and generally used in delicate circuit repairs. Hollow pins are simpler to use, but carry a higher risk. When pulling out a hollow pin, the solder is solid; if solder adheres to the pin, pulling it out could damage the pads. Desoldering pumps are the most widely used method. To use a desoldering pump, a spring is first pressed to store energy. Then, the soldering iron is used to melt the solder joint. The soldering iron is removed while the nozzle is held over the molten solder. Releasing the spring creates negative pressure at the nozzle, drawing the molten solder into the pump. The process is somewhat cumbersome because the solder quickly solidifies after being melted. This requires good hand-eye coordination and some training to perform well. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multifunctional desoldering device. By setting up both hard and soft air nozzles, it has a wider range of applications. Moreover, the added metal hard tube is more heat-resistant and can directly contact the soldering iron, thus improving the shortcomings of traditional desoldering processes that require high hand-eye coordination, reducing the workload of users and the learning cost for beginners.

[0005] To achieve the above objectives, the present invention provides a multifunctional desoldering device, characterized in that it includes an air guide section and an air bladder section. The air guide section is composed of a rigid tube and a sleeve, with one end of the rigid tube and the other end of the sleeve. The rigid tube is a hollow conduit with an expansion portion at one end, and the sleeve is made of an elastic material. The expansion portion of the rigid tube is connected to the sleeve. The air bladder section is composed of an air bladder and a connecting port, and the air bladder is a hollow structure made of an elastic material.

[0006] The air guide is installed at the connection port. There are two installation directions for the air guide on the airbag: the first is that the rigid tube end of the air guide is outside the airbag and the sleeve end of the air guide is inside the airbag; the second is that the rigid tube end of the air guide is inside the airbag and the sleeve end of the air guide is outside the airbag.

[0007] Furthermore, the maximum axial section A of the air guide is located at the connection between the expansion section and the sleeve. The minimum circumscribed circle diameter of the maximum section A is greater than the inner diameter of the connection port. The connection method between the air guide and the airbag section is that the maximum section A is embedded in the connection port to form an interference fit connection or a snap-fit ​​connection.

[0008] Furthermore, the airbag is equipped with a one-way valve, which connects the airbag to the atmosphere, and the air guiding direction of the one-way valve is from the atmosphere to the inside of the airbag.

[0009] Furthermore, the rigid tube of the air guide is a hollow conduit made of metal or ceramic, and the sleeve is a hollow conduit made of plastic or silicone.

[0010] Furthermore, the rigid tube has a flexible tube head at the other end of the expanded portion, the flexible tube head being fitted onto the rigid tube and slidable on the rigid tube.

[0011] Furthermore, the airbag is provided with reinforcing ribs or the surface of the airbag is provided with an anti-slip layer.

[0012] Furthermore, the sleeve is a universal tube, which can be bent and shaped under external force.

[0013] Furthermore, a multifunctional desoldering device is provided with multiple air guide sections, each having a rigid tube with a different inner diameter.

[0014] Furthermore, the sleeve is provided with a support sleeve, which is a rigid tubular structure. The support sleeve is installed inside the sleeve, and the support sleeve and the sleeve are connected by adhesive or interference fit.

[0015] Furthermore, the multifunctional desoldering device also includes a second rigid tube, which is a hollow conduit with an enlarged portion at one end. The enlarged portion and the enlarged portion are respectively connected to both ends of the sleeve. The other end of the enlarged portion of the second rigid tube is outside the sleeve. The air guide and the air bladder are detachably connected, so the second rigid tube can be placed inside the air bladder and the rigid tube can be placed outside the air bladder, or the rigid tube can be placed inside the air bladder and the second rigid tube can be placed outside the air bladder.

[0016] The beneficial effects of this invention are as follows: 1. The air guide of this invention is a dual-purpose design, with one end being a small-diameter rigid tube and the other end being a large-diameter flexible tube. The small-diameter rigid tube generates a high-speed airflow that directly blows away the melted solder; the large-diameter flexible tube can better form a seal to generate high pressure for solder removal. Therefore, the dual-purpose air guide can adapt to more solder removal situations.

[0017] 2. The air guide part of the present invention is provided with a metal or ceramic tube, which is more resistant to high temperature and can directly contact the soldering iron tip when it is heated; while the sleeve is made of heat-resistant silicone material, which effectively isolates the heat conduction of the metal tube to the air bag part. The metal tube can directly remove solder while the soldering iron is heating the solder, which solves the problem in the existing solution that the soldering iron must be removed before removing solder and the solder must be removed quickly, reducing the requirements for hand-eye coordination in solder removal. Attached Figure Description

[0018] The invention will be further described below with reference to the accompanying drawings: Figure 1 These are a front view and a left view of one working state of the present invention; Figure 2 These are the front view and left view of another working state of the present invention; Figure 3 These are the front view and left view of the air guide section of the present invention; Figure 4 These are the front view and left view of the airbag portion of the present invention; Figure 5 These are a front view and a left view of an optimized design of the airbag portion of the present invention; Figure 6 Front view and left view of another optimized design of the airbag part of the present invention; Figure 7 This is a schematic diagram showing two states of an optimized design for the air guide section of the present invention; Figure 8 Three-view diagram of another optimized design of the air guide section of the present invention; In the figure: air guide 1, rigid tube 101, expansion part 1011, flexible tube head 1012, sleeve 102, support sleeve 1021, rigid tube 2 103, expansion part 2 1031, air bladder 2, air bladder 201, reinforcing rib 2011, connecting part 202, one-way valve 203. Detailed Implementation

[0019] The invention will now be described in detail with reference to the accompanying drawings. (See attached drawings.) Figures 1-8 .

[0020] Example 1 。

[0021] like Figure 1 and 2 As shown, a multifunctional desoldering device is characterized by comprising an air guide section 1 and an air bladder section 2. Figure 3 As shown, the air guide section 1 consists of a rigid tube 101 and a sleeve 102. One end of the air guide section 1 is the rigid tube 101, and the other end is the sleeve 102. The rigid tube 101 is a stainless steel tube with an inner diameter of 1.4 mm, and the sleeve 102 is a heat-resistant silicone tube with an inner diameter of 5 mm and an outer diameter of 7 mm. The rigid tube 101 is a hollow conduit with an expansion portion 1011 at one end, the outer diameter of which is 5.5 mm. The sleeve 102 is made of silicone material with good elasticity, and the expansion portion 1011 of the rigid tube 101 is embedded in one end of the sleeve 102. Figure 4 As shown, the airbag part 2 consists of an airbag 201 and a connecting port 202. The airbag 201 is a hollow structure made of rubber, and the inner diameter of the connecting port 202 is 7mm.

[0022] like Figure 1 and 2 As shown, the inner diameter of the connection port 202 of the airbag part 2 is 7mm, and the maximum axial outer diameter of the air guide part 1 is 7.3mm. Therefore, the air guide part 1 is embedded in the connection port 202 through an interference fit, and the air guide part 1 and the airbag part 2 form a detachable connection. There are two installation directions for the air guide part 1 on the airbag part 2. The first is that the rigid tube 101 end of the air guide part 1 is outside the airbag 201, and the sleeve 102 end of the air guide part 1 is inside the airbag 201, as shown. Figure 1 As shown, at this time, the rigid tube 101 is the air outlet. The small-diameter rigid tube 101 can generate a high-speed airflow to directly blow away the melted solder; the second type is where the rigid tube 101 end of the air guide 1 is inside the air bag 201, and the sleeve 102 end of the air guide 1 is outside the air bag 201, as shown. Figure 2 As shown, at this time, the hose 102 is the air outlet, and the wide opening through the hose 102 can better form a seal to generate high pressure for desoldering.

[0023] When the minimum outer diameter of the electrical component pin to be removed is less than 1.4mm, the desoldering should be performed by installing the rigid tube 101 of the air guide section 1 on the outside of the airbag section 2. First, insert the inner hole of the rigid tube 101 into the pin at the solder joint to be desoldered for positioning. The rigid tube 101 should be perpendicular to the circuit board. Then, heat the solder joint to be desoldered with a soldering iron. After the solder joint melts, press the airbag 201 to expel the gas. The gas inside the airbag 201 flows out at high speed from the small-diameter outlet of the rigid tube 201, blowing directly onto the melted solder joint. At the same time, remove the soldering iron to stop heating the solder joint. With the blowing of the high-speed airflow, the pin of the electrical component separates from the solder pad, and the solder solidifies.

[0024] When the minimum outer diameter of the electrical component pin to be removed is not less than 1.4mm, the desoldering process should ideally be performed with the sleeve 102 of the air guide section 1 installed on the outside of the airbag section 2. First, heat the solder joint to be desoldered with a soldering iron. Once the solder melts, remove the soldering iron and quickly cover the melted solder joint with the sleeve 102, ensuring the sleeve 102 seals the joint as much as possible. Then, quickly squeeze the airbag 201 to expel the gas. A large amount of gas enters the sleeve 102, creating a high-pressure seal at the melted solder joint. This high pressure acts on the melted solder joint, blowing away the molten solder and separating the electrical component pin from the pad. The entire process is basically the same as operating a common desoldering pump, but requires a certain level of proficiency.

[0025] Example 2 。

[0026] like Figure 1 and 2 As shown, a multifunctional desoldering device is characterized by comprising an air guide section 1 and an air bladder section 2. Figure 3 As shown, the air guide section 1 consists of a rigid tube 101 and a sleeve 102. One end of the air guide section 1 is the rigid tube 101, and the other end is the sleeve 102. The rigid tube 101 is a stainless steel tube with an inner diameter of 1.4 mm, and the sleeve 102 is a heat-resistant silicone tube with an inner diameter of 5 mm and an outer diameter of 7 mm. The rigid tube 101 is a hollow conduit with an expansion portion 1011 at one end, the outer diameter of which is 5.5 mm. The sleeve 102 is made of silicone material with good elasticity, and the expansion portion 1011 of the rigid tube 101 is embedded in one end of the sleeve 102. Figure 5 As shown, the airbag part 2 consists of an airbag 201 and a connection port 202. The airbag 201 is a hollow structure made of rubber. The inner diameter of the connection port 202 is 7mm. The airbag part 2 is equipped with a one-way valve 203, which connects the airbag 201 to the atmosphere. The air guiding direction of the one-way valve 203 is from the atmosphere to the inside of the airbag 201.

[0027] like Figure 7 As shown, the sleeve 102 is provided with a support sleeve 1021, which is a rigid tubular structure. The support sleeve 1021 is installed inside the sleeve 102, and the support sleeve 1021 and the sleeve 102 are connected by adhesive or interference fit. When the rigid tube 101 serves as the air outlet of the air guide 1 outside the airbag part 2, the sleeve 102 is at the connection port 202 of the support tube 1021. The rigid tube 101 has a flexible sleeve 102 at one end between it and the airbag part 2. Therefore, the rigid tube 101 is twisted relative to the airbag part 2, thereby enabling the desoldering device of this solution to work in a relatively confined space.

[0028] Example 3 。

[0029] like Figure 1 and 2As shown, a multifunctional desoldering device is characterized by comprising an air guide section 1 and an air bladder section 2. Figure 3 As shown, the air guide section 1 consists of a rigid tube 101 and a sleeve 102. One end of the air guide section 1 is the rigid tube 101, and the other end is the sleeve 102. The rigid tube 101 is a stainless steel tube with an inner diameter of 1.4 mm, and the sleeve 102 is a heat-resistant silicone tube with an inner diameter of 5 mm and an outer diameter of 7 mm. The rigid tube 101 is a hollow conduit with an expansion portion 1011 at one end, the outer diameter of which is 5.5 mm. The sleeve 102 is made of silicone material with good elasticity, and the expansion portion 1011 of the rigid tube 101 is embedded in one end of the sleeve 102. Figure 5 As shown, the airbag part 2 consists of an airbag 201 and a connection port 202. The airbag 201 is a hollow structure made of rubber. The inner diameter of the connection port 202 is 7mm. The airbag part 2 is equipped with a one-way valve 203, which connects the airbag 201 to the atmosphere. The air guiding direction of the one-way valve 203 is from the atmosphere to the inside of the airbag 201.

[0030] like Figure 8 As shown, the desoldering device in this solution also includes a rigid tube 103, which is a hollow conduit with an enlarged portion 1031 at one end. The enlarged portion 1031 and the enlarged portion 1011 are respectively connected to both ends of the sleeve 102. The other end of the enlarged portion 1031 of the rigid tube 103 is outside the sleeve 102. The inner diameter of the rigid tube 103 is 2mm. The air guide 1 and the airbag 2 are detachably connected. The air guide 1 can be installed on the airbag 2 in two ways: The first configuration has the rigid tube 101 of the air guide 1 outside the airbag 201, while the rigid tube 103 of the air guide 1 is inside the airbag 201. The second configuration has the rigid tube 103 of the air guide 1 inside the airbag 201, while the rigid tube 101 of the air guide 1 is outside the airbag 201. Both configurations use a small-diameter rigid hollow tube to generate a high-speed airflow that blows away and melts the solder. Different inner diameter air nozzles are used to accommodate the different sizes of pins on electrical components.

Claims

1. A multifunctional desoldering device, characterized in that: It includes an air guide (1) and an airbag (2). The air guide (1) is composed of a rigid tube (101) and a sleeve (102). One end of the air guide (1) is the rigid tube (101) and the other end is the sleeve (102). The rigid tube (101) is a hollow conduit and has an expansion part (1011) at one end. The sleeve (102) is made of elastic material. The expansion part (1011) of the rigid tube (101) is connected to the sleeve (102). The airbag (2) is composed of an airbag (201) and a connection port (202). The airbag (201) is a hollow structure made of elastic material. The air guide (1) is installed at the connection port (202). There are two installation directions of the air guide (1) on the airbag (2). The first is that the hard tube (101) end of the air guide (1) is outside the airbag (201), and the sleeve (102) end of the air guide (1) is inside the airbag (201). The second is that the hard tube (101) end of the air guide (1) is inside the airbag (201), and the sleeve (102) end of the air guide (1) is outside the airbag (201).

2. The multifunctional desoldering device according to claim 1, characterized in that: The maximum axial section A of the air guide (1) is located at the connection between the expansion part (1011) and the sleeve (102). The minimum circumscribed circle diameter of the maximum section A is greater than the inner diameter of the connection port (202). The connection method between the air guide (1) and the airbag part (2) is that the maximum section A is embedded in the connection port (202) to form an interference fit connection or a snap-fit ​​connection.

3. The multifunctional desoldering device according to claim 1, characterized in that: The airbag part (2) is provided with a one-way valve (203), which connects the airbag (201) to the atmosphere. The air guiding direction of the one-way valve (203) is from the atmosphere to the airbag (201).

4. The multifunctional desoldering device according to claim 1, characterized in that: The rigid tube (101) of the air guide (1) is a hollow conduit made of metal or ceramic, and the sleeve (102) is a hollow conduit made of plastic or silicone.

5. The multifunctional desoldering device according to claim 1, characterized in that: The rigid tube (101) has a flexible tube head (1012) at the other end of the enlarged portion (1011). The flexible tube head (1012) is fitted onto the rigid tube (101) and can slide on the rigid tube (101).

6. A multifunctional desoldering device according to claim 1, characterized in that: The airbag (201) is provided with reinforcing ribs (2011) or the surface of the airbag (201) is provided with an anti-slip layer.

7. The multifunctional desoldering device according to claim 1, characterized in that: The sleeve (102) is a universal tube that can be bent and shaped under external force.

8. A multifunctional desoldering device according to any one of claims 1-7, characterized in that: A multifunctional desoldering device is provided with multiple air guides (1), and each air guide (1) has a rigid tube (101) with a different inner diameter.

9. A multifunctional desoldering device according to any one of claims 1-7, characterized in that: The sleeve (102) is provided with a support sleeve (1021), which is a rigid tubular structure. The support sleeve (1021) is installed inside the sleeve (102), and the support sleeve (1021) and the sleeve (102) are connected by adhesive or interference fit.

10. A multifunctional desoldering device according to any one of claims 1-7, characterized in that: The multifunctional desoldering device further includes a rigid tube two (103), which is a hollow conduit with an enlarged part two (1031) at one end. The enlarged part two (1031) and the enlarged part (1011) are respectively connected to the two ends of the sleeve (102). The other end of the enlarged part two (1031) of the rigid tube two (103) is outside the sleeve (102). The air guide part (1) and the air bladder part (2) are detachably connected. The rigid tube two (103) can be placed inside the air bladder part (2) and the rigid tube (101) can be placed outside the air bladder part (2), or the rigid tube (101) can be placed inside the air bladder part (2) and the rigid tube two (103) can be placed outside the air bladder part (2).

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