CN216939031U

CN216939031U - High-performance lead-free soldering tin bar structure

Info

Publication number: CN216939031U
Application number: CN202122953359.9U
Authority: CN
Inventors: 王鑫; 王国贤
Original assignee: Changzhou Dingqiang Solder Co ltd
Current assignee: Changzhou Dingqiang Solder Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-12
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of solder bar production, in particular to a high-performance lead-free solder bar structure which comprises a solder bar and a soldering flux core arranged in the solder bar, wherein the solder bar is quadrangular, one end of the solder bar is provided with a contact head, the side wall of the solder bar is provided with a inscription groove, the edge angle of the side edge of the solder bar is provided with a bayonet, the solder bar is internally provided with a cavity corresponding to the soldering flux core, a partition plate is arranged in the cavity, and the partition plate and the solder bar are both provided with air holes. The cavity matched with the soldering flux core is formed in the soldering tin bar, air is conveniently exhausted by matching the air hole, the phenomenon that after a soldering flux layer is melted and vaporized, internal pressure rises, molten tin splashes, the welding effect is influenced, and even personnel are injured is avoided.

Description

High-performance lead-free soldering tin bar structure

Technical Field

The utility model relates to the technical field of solder bar production, in particular to a high-performance lead-free solder bar structure.

Background

Soldering tin is an important industrial raw material for connecting electronic components in a soldering line, and is widely applied to the electronic industry, the household appliance manufacturing industry, the automobile manufacturing industry, the maintenance industry and daily life.

The tin soldering is to use a heating tool to firmly combine two or more metal conductors to achieve electric conduction, the tin bar is a product in the tin soldering, the tin bar can be divided into a lead tin bar and a lead-free tin bar, and is used for welding a circuit board.

Made of tin-copper alloy. Common lead-free environment-friendly soldering tin comprises tin copper, tin silver copper and tin silver copper according to different components. The slag quantity after melting is less than that of common soldering tin, and the solder has excellent oxidation resistance; the molten alloy has low viscosity, good fluidity and high weldability, and is most suitable for wave soldering procedures; because of few oxide inclusions, the phenomena of tip pulling and bridging can be reduced to the maximum extent, the welding quality is reliable, and welding spots are bright and full. The tin is easy to be coated due to good wettability, conductivity and heat conductivity, and the soldering flux is uniformly distributed in the tin core without breaking the soldering flux.

At present, the soldering tin bar used in some industrial occasions generally comprises a soldering flux layer and a tin layer, and after the soldering tin bar is heated, the internal pressure of the internal soldering flux layer is molten and vaporized to be rapidly increased, so that the internal soldering flux layer and the external tin layer are splashed, the short circuit of a welding product is caused, the surface of the existing soldering tin bar is smooth, and the soldering tin bar is inconvenient to fix and easy to influence welding processing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-performance lead-free solder bar structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a lead-free soldering tin bar structure of high performance, includes soldering tin bar and sets up the scaling powder core in soldering tin bar inside, soldering tin bar is the quadrangular form, soldering tin bar one end is equipped with the contact head, the data inscription groove has been seted up to the soldering tin bar lateral wall, the bayonet socket has been seted up to soldering tin bar side edges and corners department, set up the cavity that corresponds with the scaling powder core in the soldering tin bar, be equipped with the baffle in the cavity, all set up the gas pocket on baffle and the soldering tin bar.

Preferably, the two groups of the soldering flux cores are cylindrical.

Preferably, the soldering tin bar and the contact head are integrally formed.

Preferably, the inscription groove is internally provided with an identification inscription.

Preferably, the partition plates are provided with a plurality of groups and are uniformly arranged in the cavity.

Preferably, the cavity is communicated with the air hole.

Preferably, the material of the soldering flux core adopts lead-free environment-friendly soldering flux.

The utility model has the beneficial effects that:

compared with the prior art, the cavity matched with the soldering flux core is arranged in the soldering tin bar, the air is conveniently exhausted by matching the air hole, the phenomenon that the internal pressure of the soldering flux layer is increased after the soldering flux layer is melted and vaporized to cause splashing of molten tin, influence on the welding effect and even cause personal injury is avoided, meanwhile, the clamping opening is formed in the soldering tin bar, the fixture is convenient to fix, and the working reliability of soldering tin is improved.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a high-performance lead-free solder bar structure according to the present invention;

FIG. 2 is a schematic sectional view of a high performance lead-free solder bar structure according to the present invention;

fig. 3 is a schematic top cross-sectional structural view of a high-performance lead-free solder bar structure according to the present invention;

fig. 4 is a schematic three-dimensional cross-sectional structure diagram of a high-performance lead-free solder bar structure according to the present invention.

In the figure: 1 soldering tin bar, 2 bayonets, 3 contact heads, 4 inscription grooves, 5 scaling powder cores, 6 clapboards, 7 air holes and 8 cavities.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. 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.

Referring to fig. 1-4, a high performance leadless soldering tin bar structure, including soldering tin bar 1 and the scaling powder core 5 of setting in soldering tin bar 1 inside, soldering tin bar 1 is the quadrangular form, and 1 one end of soldering tin bar is equipped with contact 3, and inscription groove 4 has been seted up to 1 lateral wall of soldering tin bar, and bayonet socket 2 has been seted up to 1 side edge and corner department of soldering tin bar, has seted up the cavity 8 that corresponds with scaling powder core 5 in soldering tin bar 1, is equipped with baffle 6 in the cavity 8, all has seted up gas pocket 7 on baffle 6 and the soldering tin bar 1.

In this embodiment, the soldering flux cores 5 are two groups and are cylindrical, and the soldering tin bar 1 and the contact 3 are integrally formed, so that the strength of the whole structure is improved.

Specifically, be equipped with the sign data inscription in the data inscription groove 4, be convenient for distinguish the soldering tin strip 1 of different models fast, improve anti-fake discernment ability, avoid the wastrel to sneak into market, influence manufacturing enterprise's image.

Specifically, the partition plates 6 are provided with a plurality of groups and are evenly arranged in the cavity 8, the cavity 8 is communicated with the air holes 7, so that the air circulation is facilitated, the internal pressure is reduced, and the splashing of the molten tin bars is avoided.

Specifically, the material of the soldering flux core 5 adopts lead-free environment-friendly soldering flux without halogen residue, so that the soldering quality and reliability can be effectively improved, and the thin resin protective film can effectively prevent the corrosion of moisture and other harmful substances. The active substance contained in the soldering flux has no corrosivity at the welding point after welding, and ensures excellent lubricity and soldering effect.

In this embodiment, be equipped with in the soldering tin strip 1 with the cavity 8 of scaling powder core 5 adaptations, the air of being convenient for discharge of cooperation gas pocket 7 avoids scaling powder to melt and the interior pressure rising of vaporization back, causes the tin that melts to splash, influences the welding effect, causes personnel's injury even, has seted up bayonet socket 2 on the soldering tin strip 1 simultaneously, and the anchor clamps of being convenient for are fixed, improve soldering tin operational reliability.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Claims

1. The utility model provides a lead-free soldering tin bar structure of high performance, includes soldering tin bar (1) and sets up scaling powder core (5) inside soldering tin bar (1), its characterized in that, soldering tin bar (1) is the quadrangular prism form, soldering tin bar (1) one end is equipped with contact head (3), inscription groove (4) have been seted up to soldering tin bar (1) lateral wall, bayonet socket (2) have been seted up to soldering tin bar (1) side edges and corners department, seted up cavity (8) that correspond with scaling powder core (5) in soldering tin bar (1), be equipped with baffle (6) in cavity (8), all set up gas pocket (7) on baffle (6) and soldering tin bar (1).

2. A high performance lead-free solder bar structure as claimed in claim 1, wherein the flux cores (5) are provided in two groups and are cylindrical.

3. A high performance lead-free solder bar structure as claimed in claim 1, characterized in that the solder bar (1) and the contact head (3) are integrally formed.

4. A high performance lead-free solder bar structure as claimed in claim 1, characterized in that the inscription groove (4) is provided with an identification inscription.

5. A high performance lead-free solder bar structure as claimed in claim 1, characterized in that the spacers (6) are provided in groups and evenly arranged in the cavity (8).

6. A high performance lead-free solder bar structure as claimed in claim 1, characterized in that the cavities (8) are in communication with air holes (7).

7. The structure of claim 1, wherein the flux core (5) is made of lead-free environment-friendly flux.