CN113878192A

CN113878192A - USB interface welding set

Info

Publication number: CN113878192A
Application number: CN202011018656.8A
Authority: CN
Inventors: 姚艺
Original assignee: Hunan Hongjun Electronic Technology Co ltd
Current assignee: Hunan Hongjun Electronic Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2022-01-04

Abstract

The invention discloses a USB interface welding device which comprises a heating part and a welding flux part. The soldering paste is stored in the hollow cylinder, the soldering paste bag is arranged on the handle, the nozzle is arranged on the connecting seat, the soldering paste bag is communicated with the nozzle by the pipe body, and the external power supply of the heating device is connected. When the soldering paste is required to be smeared, the nozzle is only required to be aligned to the lap joint position of the pin of the USB connector and the external circuit and the piston rod is pushed, and the soldering paste is extruded to the designated position from the nozzle. And then adjusting the angle of the invention to make the soldering claws align to the overlapping position of the pins of the USB connector and the external circuit and contact the extruded soldering paste, transferring the heat energy of the heating device to heat the soldering claws, making the high-temperature soldering claws contact the soldering paste, and wrapping the pins of the mutually overlapped USB connector and the external circuit after the soldering paste is melted to realize welding. Compared with the existing welding device, the welding device has the advantages that the function of coating the soldering paste can be realized without other tools by arranging the welding flux part, the operation process is simplified, and the working efficiency is improved.

Description

USB interface welding set

Technical Field

The invention relates to the technical field of USB interface welding, in particular to a USB interface welding device.

Background

The USB interface (the chinese name: Universal Serial Bus; the english name: Universal Serial Bus) is a Serial Bus standard, is also a technical specification of input/output interfaces, is widely applied to information communication products such as personal computers and mobile devices, and is extended to other related fields such as photographic equipment, digital televisions (set-top boxes), game machines, and the like.

The USB interface is formed with a set of pins, which are typically soldered to corresponding lines when the USB interface is installed. During soldering, an operator needs to fix the USB interface, overlap the wires and the pins, paint solder paste, and heat the solder paste using an electric iron. Soldering irons for electric soldering irons are thick, and pins are small and dense, which are difficult to control during operation, often resulting in soldering failure and even damage to the components. Moreover, the number of pins (4 or 5) of the commonly used USB interface is large, and only one pin can be welded by the soldering iron head each time, so that the mounting work of one USB interface can be completed by repeating the operation many times. Moreover, the conventional soldering apparatus does not have a function of applying solder paste, and can be operated only by using other tools. Therefore, the existing welding device has incomplete functions and is difficult to operate, so that the working efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a USB interface welding device, and aims to solve the problem that soldering paste cannot be smeared on the existing welding device.

In order to achieve the above purpose, the USB interface welding device provided by the present invention comprises a heating portion and a flux portion; the heating part comprises a handle, a core wire and a welding head; the handle is a cylinder, and a channel for the electric wire to penetrate through is formed in the handle; the welding core is a cylinder, and an electric heating device is arranged on the side wall of the welding core; the welding core is fixed at one end of the handle; the power supply wire of the electric heating device penetrates out of the channel in the handle; the welding head is a hollow cylinder with an opening at one end, a connecting seat is formed at the closed end of the welding head, at least one welding claw is formed on the side wall of the connecting seat, and the welding claw is a cone; the welding head is detachably sleeved on the welding core; the welding flux part comprises a welding flux bag and a spray head; the welding flux capsule comprises an empty cylinder and a piston rod; the hollow cylinder is a hollow body with a liquid outlet formed at one end, and the inner cylinder wall of the hollow cylinder is fixed on the side wall of the handle; the piston rod is arranged in the cavity of the hollow cylinder along the axial direction of the handle and is used for pushing the substances in the hollow cylinder out of the liquid outlet; the spray head is a hollow body with a feed inlet formed on one side, at least one spray nozzle communicated with the inner cavity of the spray head is formed on the other side of the spray head, and the spray nozzle is a cone; the spray head is arranged on the connecting seat; the feed inlet of the spray head is communicated with the liquid outlet of the hollow cylinder through a pipe body.

Preferably, a power switch is installed on the handle and connected with the power supply line, and the power switch is used for controlling the on-off of the electric heating device.

Preferably, a temperature sensing element is arranged in the connecting seat and used for detecting the temperature value of the connecting seat; the temperature sensing device is characterized in that a display screen is installed on the handle and connected with the temperature sensing element, and the display screen is used for displaying the temperature value acquired by the temperature sensing element.

Preferably, the USB interface welding device further includes a controller and a shift switch; the controller is in signal connection with the temperature sensing element and the power switch respectively, and is used for acquiring a temperature value acquired by the temperature sensing element and controlling the power switch to be turned on or off according to the temperature value and a preset temperature value; the gear switch is connected with the controller and used for selecting the preset temperature value.

Preferably, the preset temperature values include 188 ℃, 222 ℃ and 260 ℃.

Preferably, the installation of handle the guard plate is installed to core wire one end, be formed with the spacing hole on the guard plate, empty section of thick bamboo the liquid outlet wear to establish in the spacing hole.

Preferably, a bracket for fixing the pipe body is formed on a side wall of the welding head.

Preferably, a fixing buckle is formed on a contact surface of the flux bag and the handle, and the flux bag and the handle are detachably connected through the fixing buckle.

Preferably, a fixing buckle is formed on a contact surface of the welding head and the handle, and the welding head and the handle are detachably connected through the fixing buckle.

Preferably, the heating device is a heating wire surrounding the side wall of the core wire or a heating plate installed on the side wall of the core wire.

In the technical scheme of the invention, solder paste is stored in the hollow cylinder, the solder capsule is arranged on the handle, the nozzle is arranged on the connecting seat, the solder capsule is communicated with the nozzle by the pipe body, and an external power supply of the heating device is connected. When the soldering paste needs to be smeared, the soldering paste is extruded to the designated position from the nozzle only by aligning the nozzle with the overlapping position of the pin of the USB connector and the external circuit and pushing the piston rod. And then adjusting the angle of the USB interface welding device to enable the welding claws to align to the overlapping positions of the pins of the USB connector and the external circuit and to contact with the extruded soldering paste, wherein the heat energy of the heating device is transferred to enable the welding claws to be heated, the welding claws with high temperature contact with the soldering paste, and the soldering paste wraps the pins of the USB connector and the external circuit which are overlapped with each other after being melted to realize welding. Compared with the existing welding device, the welding flux part is arranged, so that the USB interface welding device can realize the function of coating the soldering paste without other tools, the operation process is simplified, and the working efficiency is improved. Moreover, the number and the distance between the welding claws and the nozzles can be determined according to the specific conditions of the pins of the USB interface to be welded, so that each welding claw and the nozzle are opposite to one pin, the soldering paste can be extruded out from the lap joint position of each pin and an external circuit at the same time by pushing the piston rod once, and all the pins can be welded at one time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a USB interface welding device according to the present invention;

FIG. 2 is an exploded view of a USB interface soldering apparatus according to the present invention;

FIG. 3 is a schematic view of the handle and horn configuration;

FIG. 4 is a schematic cross-sectional view of a bonding tool;

FIG. 5 is a schematic cross-sectional view of a showerhead;

fig. 6 is a schematic cross-sectional view of a solder capsule.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a USB interface welding device.

Referring to fig. 1 to 6, the USB interface welding apparatus includes a heating portion 100 and a flux portion 200; the heating section 100 includes a handle 110, a core wire 120, and a welding head 130; the handle 110 is a cylinder, and a channel for passing an electric wire is formed in the handle 110; the welding core 120 is a cylinder, and an electric heating device is mounted on the side wall of the welding core 120; the core wire 120 is fixed at one end of the handle 110; the power supply wires of the electric heating device pass out of the channel in the handle 110; the welding head 130 is a hollow cylinder with an opening at one end, a connecting seat 131 is formed at the closed end of the welding head 130, at least one welding claw 132 is formed on the side wall of the connecting seat 131, and the welding claw 132 is a cone; the welding head 130 is detachably sleeved on the core wire 120; the flux part 200 includes a flux pocket 210 and a spray head 220; the flux capsule 210 comprises an empty cylinder 211 and a piston rod 212; the hollow cylinder 211 is a hollow body with a liquid outlet 213 formed at one end, and the inner cylinder wall of the hollow cylinder 211 is fixed on the side wall of the handle 110; the piston rod 212 is installed in the cavity of the hollow cylinder 211 along the axial direction of the handle 110, so as to push the substance in the hollow cylinder 211 out of the liquid outlet 213; the spray head 220 is a hollow body with a feed inlet formed on one side, at least one spray nozzle 221 communicated with an inner cavity of the spray head 220 is formed on the other side of the spray head 220, and the spray nozzle 221 is a cone; the spray head 220 is mounted on the connecting seat 131; the feed inlet of the spray head 220 is communicated with the liquid outlet 213 of the hollow cylinder 211 through a pipe body.

In the present invention, solder paste is stored in the empty cartridge 211, the solder capsule 210 is mounted on the handle 110, the nozzle 220 is mounted on the connection holder 131, the solder capsule 210 and the nozzle 220 are connected by the tube, and an external power supply of the heating device is connected. When the solder paste needs to be applied, the nozzle is aligned to the overlapping position of the pin of the USB connector and the external circuit and the piston rod 212 is pushed, so that the solder paste is extruded from the nozzle 211 to a designated position. Then, the angle of the USB interface welding device of the present invention is adjusted to make the soldering claws 132 align to the overlapping positions of the pins of the USB connector and the external circuit and contact the extruded solder paste, the heat energy of the heating device is transferred to heat the soldering claws 132, the soldering claws 132 with high temperature contact the solder paste, and the melted solder paste wraps the pins of the USB connector and the external circuit which are overlapped with each other, so as to realize welding. Compared with the existing welding device, the welding flux part 200 is arranged, so that the USB interface welding device can realize the function of coating the soldering paste without other tools, the operation process is simplified, and the working efficiency is improved.

The hollow cylinder 211 extends along the axial direction of the handle 110; in the radial direction of the handle 110, the hollow cylinder 211 has a cross section of an arc-shaped housing formed with an inner cavity. One side of the hollow cylinder 211, which is close to the handle 110, is an arc-surface-shaped inner cylinder wall, specifically, the inner cylinder wall is a semi-arc surface, and the diameter of the semi-arc surface is equal to that of the handle 110, so that the hollow cylinder 211 and the handle 110 have a better attaching effect; one side of the hollow cylinder 211 departing from the handle 110 is an arc-surface-shaped outer cylinder wall.

Moreover, the number and the distance between the soldering claws 132 and the nozzles 221 can be determined according to the specific conditions of the pins of the USB interface to be soldered, so that each soldering claw 132 and each nozzle 221 directly face one pin, and thus the solder paste can be simultaneously extruded to the overlapping position of each pin and the external circuit by pushing the piston rod 212 once, and all the pins can be soldered at one time.

In another embodiment of the present invention, a power switch is installed on the handle 110, and the power switch is connected to the power supply line, and the power switch is used for controlling the on/off of the electric heating device. A temperature sensing element is arranged in the connecting seat 131 and used for detecting the temperature value of the connecting seat 131; the handle 110 is provided with a display screen, the display screen is connected with the temperature sensing element, and the display screen is used for displaying the temperature value acquired by the temperature sensing element. When the soldering paste is used for soldering, the soldering quality can be guaranteed only by meeting certain temperature requirements, and a user can accurately know the temperature of the soldering head 130 by arranging the temperature sensing element and the display screen so as to assist in judging whether soldering can be carried out.

Preferably, the USB interface welding device further includes a controller and a shift switch; the controller is in signal connection with the temperature sensing element and the power switch respectively, and is used for acquiring a temperature value acquired by the temperature sensing element and controlling the power switch to be turned on or off according to the temperature value and a preset temperature value; the gear switch is connected with the controller and used for selecting the preset temperature value. By arranging the controller, the temperature of the welding head 130 can be automatically controlled, and the temperature of the welding head 130 is ensured to meet the welding requirement. And because the soldering paste has various models, the soldering temperatures of the soldering pastes of different models are different, and different preset temperature values are selected by the gear switch to be matched with the soldering pastes of different models, so that an operator can more easily grasp the soldering temperature, and the soldering quality is improved.

Preferably, the preset temperature values include 188 ℃, 222 ℃ and 260 ℃. Common solder pastes are classified into low-temperature solder paste, medium-temperature solder paste and high-temperature solder paste, the melting points of which are 138 ℃, 172 ℃ and 210 ℃, respectively, and in order to achieve the best soldering effect, the soldering temperature should be controlled to be the melting point value plus 50 ℃, so that the preset temperature values are determined to be 188 ℃, 222 ℃ and 260 ℃. When the preset temperature value of 188 ℃ is selected, correspondingly selecting low-temperature soldering paste; when the preset temperature value of 222 ℃ is selected, medium-temperature soldering paste is correspondingly selected; when the preset temperature value of 260 ℃ is selected, high-temperature solder paste should be correspondingly selected.

Preferably, a protection plate 111 is installed at one end of the handle 110, where the core wires 120 are installed, a limiting hole 112 is formed in the protection plate 111, and the liquid outlet 213 of the hollow cylinder 211 is inserted into the limiting hole 112. Since the core wires 120 and the welding head 130 are at high temperature in the working state, in order to prevent the operator from being scalded, the protection plate 111 is installed at one end of the handle 110 close to the core wires 120. The protection plate 111 is an outwardly protruding ring and is made of a heat insulating material, so that the hand of an operator can be prevented from sliding from the handle 110 to the position of the core wire 120 or the welding head 130, and scalding is avoided. Meanwhile, in order to prevent the tube body connecting the welding agent capsule 210 and the nozzle 220 from being damaged by the welding head 130 contacting high temperature, the protection plate 111 is provided with the limiting hole 112, and the tube body is connected with the liquid outlet 213 penetrating the limiting hole 112, so as to avoid adhering to the surface of the welding head 130.

Preferably, a bracket for fixing the pipe body is formed on a sidewall of the welding head 130. The tube is inserted into the bracket, so that the tube is prevented from adhering to the surface of the welding head 130.

In order to avoid the support damages because of high temperature and ensures the body can not be because of support heat conduction is impaired, the support chooses for use poly p-hydroxybenzoic acid ester or polybenzimidazole material, and these two kinds of engineering plastics not only the melting point all is higher than 300 ℃, and heat conduction efficiency is low, satisfies high temperature work requirement.

Preferably, a fixing buckle is formed on a contact surface of the flux bag 210 and the handle 110, and the flux bag 210 and the handle 110 are detachably connected through the fixing buckle. In order to be more convenient for disassembly and assembly, the fixing buckle is a magnetic suction buckle. By arranging the fixing buckle, the solder flux capsule 210 can be easily disassembled and assembled, so that the soldering paste is conveniently filled.

Preferably, a fixing buckle is formed on a contact surface of the welding head 130 and the handle 110, and the welding head 130 and the handle 110 are detachably connected through the fixing buckle. To match different types of USB connectors, the welding head 130 needs to be replaced. Through setting up fixed knot makes the dismouting more convenient.

Preferably, a fixing buckle is formed on a contact surface of the spray head 220 and the connection seat 131, and the spray head 220 and the connection seat 131 are detachably connected through the fixing buckle. To match different types of USB connectors, the spray head 220 needs to be replaced. Through setting up fixed knot makes the dismouting more convenient.

Preferably, the fixing fastener between the nozzle 220 and the connecting seat 131 and the fixing fastener between the welding head 130 and the handle 110 are made of poly-p-hydroxybenzoate or polybenzimidazole. To avoid melting of the solder paste in the nozzle 220 by heating, the heat transfer between the nozzle 220 and the connector housing 131 must be reduced. Also, since the operator is holding the handle 110, heat transfer between the horn 130 and the handle 110 must also be reduced in order to avoid heating of the handle 110. Therefore, the fixing buckle is made of the poly-p-hydroxybenzoate or polybenzimidazole material, the melting points of the two engineering plastics are higher than 300 ℃, the heat conduction efficiency is low, and the high-temperature working requirement is met.

Preferably, the heating device is a heating wire surrounding the sidewall of the core wire 120 or a heating strip mounted on the sidewall of the core wire 120.

Preferably, a sealing cover is detachably mounted on the liquid outlet 213. After the soldering is finished, if the soldering paste remains, the soldering paste capsule 210 is detached and sleeved with the sealing cover for refrigeration storage, so that the soldering paste is prevented from deteriorating.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The USB interface welding device is characterized by comprising a heating part (100) and a welding flux part (200);

the heating section (100) includes a handle (110), a core wire (120), and a welding head (130);

the handle (110) is a cylinder, and a channel for passing through an electric wire is formed in the handle (110);

the welding core (120) is a cylinder, and an electric heating device is arranged on the side wall of the welding core (120); the core wire (120) is fixed at one end of the handle (110); the power supply line of the electric heating device penetrates out of the channel in the handle (110);

the welding head (130) is a hollow cylinder with an opening at one end, a connecting seat (131) is formed at the closed end of the welding head (130), at least one welding claw (132) is formed on the side wall of the connecting seat (131), and the welding claw (132) is a cone; the welding head (130) is detachably sleeved on the welding core (120);

the flux part (200) comprises a flux bag (210) and a spray head (220);

the flux capsule (210) comprises an empty cylinder (211) and a piston rod (212); the hollow cylinder (211) is a hollow body with a liquid outlet (213) formed at one end, and the inner cylinder wall of the hollow cylinder (211) is fixed on the side wall of the handle (110); the piston rod (212) is arranged in a cavity of the hollow cylinder (211) along the axial direction of the handle (110) and is used for pushing the substance in the hollow cylinder (211) out of the liquid outlet (213);

the spray head (220) is a hollow body with a feed inlet formed on one side, at least one spray nozzle (221) communicated with an inner cavity of the spray head (220) is formed on the other side of the spray head (220), and the spray nozzle (221) is a cone; the spray head (220) is arranged on the connecting seat (131); the feed inlet of the spray head (220) is communicated with the liquid outlet (213) of the hollow cylinder (211) through a pipe body.

2. The USB interface welding device according to claim 1, wherein a power switch is mounted on the handle (110), the power switch is connected with the power supply line, and the power switch is used for controlling the on/off of the electric heating device.

3. The USB interface welding device according to claim 2, wherein a temperature sensing element is disposed in the connecting base (131), and the temperature sensing element is used for detecting a temperature value of the connecting base (131);

the temperature sensor is characterized in that a display screen is installed on the handle (110), the display screen is connected with the temperature sensing element, and the display screen is used for displaying the temperature value acquired by the temperature sensing element.

4. The USB interface welding apparatus of claim 3, wherein the USB interface welding apparatus further comprises a controller and a range switch;

the controller is in signal connection with the temperature sensing element and the power switch respectively, and is used for acquiring a temperature value acquired by the temperature sensing element and controlling the power switch to be turned on or off according to the temperature value and a preset temperature value;

the gear switch is connected with the controller and used for selecting the preset temperature value.

5. The USB interface welding apparatus of claim 4, wherein the preset temperature values include 188 ℃, 222 ℃, and 260 ℃.

6. The USB interface welding device according to any one of claims 1-5, wherein a protection plate (111) is installed at one end of the handle (110) where the core wire (120) is installed, a limiting hole (112) is formed in the protection plate (111), and the liquid outlet (213) of the hollow cylinder (211) is arranged in the limiting hole (112) in a penetrating manner.

7. The USB interface welding device according to any one of claims 1-5, characterized in that a bracket for fixing the tube body is formed on a side wall of the welding head (130).

8. The USB interface welding device according to any one of claims 1-5, characterized in that a fixing buckle is formed on the contact surface of the flux bag (210) and the handle (110), and the flux bag (210) and the handle (110) are detachably connected through the fixing buckle.

9. The USB interface welding device according to any one of claims 1-5, characterized in that a fixing buckle is formed on the contact surface of the welding head (130) and the handle (110), and the welding head (130) and the handle (110) are detachably connected through the fixing buckle.

10. The USB interface welding device according to any of the claims 1-5, characterized in that said heating device is a heating wire surrounding the side wall of said core wire (120) or a heating plate mounted on the side wall of said core wire (120).