CN207939835U - A kind of circuit board of continuous tin prevention, board and touch screen - Google Patents
A kind of circuit board of continuous tin prevention, board and touch screen Download PDFInfo
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- CN207939835U CN207939835U CN201820229832.4U CN201820229832U CN207939835U CN 207939835 U CN207939835 U CN 207939835U CN 201820229832 U CN201820229832 U CN 201820229832U CN 207939835 U CN207939835 U CN 207939835U
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- circuit board
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- tin
- stitch
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Abstract
The utility model is related to electronic technology fields, disclose a kind of circuit board of continuous tin prevention, board and touch screen, the top of the circuit board of continuous tin prevention is equipped with component side, and component side is equipped with multiple the first pads for being connect with component, and the first pad is equipped with welding hole；The gap for making scolding tin flow through is formed when the stitch of component passes through welding hole, between the stitch of component and the madial wall of welding hole.By the way that the first pad is arranged on component side, and make to form the gap for making scolding tin flow through between the stitch of component and the madial wall of welding hole, so that when circuit board is by tin on tin stove, liquid solder can be along the stitch of component from being flowed in gap on the first pad, to reduce the tin amount being connect with the first pad for the stitch of component, to efficiently avoid connecting tin between pad, so that solving the problems, such as to connect tin between pad without stealing soldering disk and artificial detin position by setting, and then improve the production efficiency of circuit board, reduce the production cost of circuit board.
Description
Technical field
The utility model is related to electronic technology fields, more particularly to a kind of circuit board of continuous tin prevention, board and touch screen.
Background technology
Circuit board is not only the supporter and electronics member device of electronic component as important one of electronic unit
The carrier of part electrical connection.Since circuit board has densification, high reliability, composability, designability and testability
Characteristic, thus be widely used in electronic product.
In order to which dual inline type component is welded on circuit boards, to realize the dual-in-line of dual inline type component
Formula encapsulates (DIP encapsulation), it will usually using pad is arranged on the welding surface of circuit board, by tin on tin stove, to realize biserial
The connection of the stitch and pad of direct insertion component, to realize the connection of dual inline type component and other devices.In electricity
Road plate on tin stove by when tin, since the gap between the pad on welding surface is smaller, being easy to cause adjacent pad and connecting
It is connected together, so as to cause short circuit between the unlike signal on circuit board.Currently, just in order to ensure circuit board
It is often used, soldering disk steathily is arranged in generally use on circuit boards, so that extra Xi Ji is together on soldering disk steathily, still, in electricity
The waste that soldering disk steathily often causes tin is added on the plate of road, and there are still connect tin between pad, it is also necessary to increase
Add artificial detin position to carry out disengagement processing to even tin position, therefore cause the production efficiency of circuit board relatively low, so as to cause circuit board
Production cost it is higher.
Utility model content
The purpose of this utility model is to provide a kind of circuit board of continuous tin prevention, board and touch screen, to solve existing electricity
Road plate is imitated due to avoiding connecting tin between pad by adding soldering disk steathily and artificial detin position so as to cause the production of circuit board
The relatively low technical problem of rate, to reduce the production cost of circuit board.
In order to solve the above-mentioned technical problem, the utility model provides a kind of circuit board of continuous tin prevention, the electricity of the continuous tin prevention
The top of road plate is equipped with component side, and the component side is equipped with multiple the first pads for being connect with component, and described the
One pad is equipped with welding hole；When the stitch of the component passes through the welding hole, the stitch of the component and the welding hole
Madial wall between form gap for making scolding tin flow through.
Preferably, the gap is 0.3mm-0.5mm.
Preferably, the distance between the edge of the welding hole and the edge of first pad are 0.15mm-
0.17mm。
Preferably, rectangular array on the top of circuit board of multiple first pads in the continuous tin prevention.
Preferably, the distance at the center of two adjacent welding holes is 1.27mm.
Preferably, the bottom of the circuit board of the continuous tin prevention is equipped with welding surface, the welding surface and described the
One pad is covered with green oil on opposite position.
Preferably, the cross-sectional shape of first pad is circle.
Preferably, the cross-sectional shape of the welding hole is circle.
In order to solve identical technical problem, the utility model also provides a kind of board, including component and above-mentioned
The stitch of the circuit board of continuous tin prevention, the component is welded on first pad.
In order to solve identical technical problem, the utility model also provides a kind of touch screen, including shell and above-mentioned
Board, the board are connected in the shell.
The utility model provides a kind of circuit board of continuous tin prevention, board and touch screen, wherein the top of the circuit board of continuous tin prevention
Portion is equipped with component side, and component side is equipped with multiple the first pads for being connect with component, and the first pad is equipped with welding hole；
When the stitch of component passes through welding hole, between being formed between the stitch of component and the madial wall of welding hole for making scolding tin flow through
Gap.By the way that the first pad is arranged on the component side of the circuit board of continuous tin prevention, and make the stitch of component and the madial wall of welding hole
Between formed make the gap that scolding tin flows through so that when circuit board is by tin on tin stove, liquid solder can be along component
Stitch is connect for the stitch of component with the first pad from first pad at the top for flowing to circuit board in gap with reducing
Tin amount, to efficiently avoid connecting tin between pad so that solved without stealing soldering disk and artificial detin position by setting
The problem of certainly connecting tin between pad, and then the production efficiency of circuit board is improved, reduce the production cost of circuit board.
Description of the drawings
Fig. 1 is the structural schematic diagram of the circuit board of the continuous tin prevention in the utility model embodiment.
Wherein, the 1, first pad；11, welding hole.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1, a kind of circuit board of continuous tin prevention of the preferred embodiment in the utility model, the circuit board of the continuous tin prevention
Top be equipped with component side, the component side be equipped with multiple the first pads 1 for being connect with component, it is described first weld
Disk 1 is equipped with welding hole 11；When the stitch of the component passes through the welding hole 11, the stitch of the component and the welding hole
The gap for making scolding tin flow through is formed between 11 madial wall.
In the utility model embodiment, by the way that the first pad 1 is arranged on the component side of the circuit board of continuous tin prevention, and make
Being formed between the stitch and the madial wall of welding hole 11 of component makes the gap that scolding tin flows through so that passes through tin on tin stove in circuit board
When, liquid solder can be along the stitch of component from first pad 1 at the top for flowing to circuit board in gap, to reduce use
In the tin amount that the stitch of component and the first pad 1 connect, to efficiently avoid connecting tin between pad so that without passing through
Setting steals soldering disk and artificial detin position to solve the problems, such as to connect tin between pad, and then improves the production efficiency of circuit board,
Reduce the production cost of circuit board.
Specifically, in the utility model embodiment, the circuit board of the continuous tin prevention is by the process of tin on tin stove, specifically
It shows as：The stitch of the component passes through the welding hole 11 from the component side, passes through in the circuit board of the continuous tin prevention
On tin stove when tin, the welding surface of the circuit board of the continuous tin prevention is contacted with liquid solder, at this point, passing through the component
The gap formed between stitch and the welding hole 11 so that liquid solder can flow to institute along the stitch of the component
It states on first pad 1 of component side, to realize that the stitch of the component is connect with first pad 1.Liquid solder
It is flowed on the component side from the welding surface by the gap, reduces the tin amount eventually flowed on first pad 1,
To reduce the tin amount that is connect with the first pad 1 of stitch for component, thus the stitch for ensuring the component can be with
While first pad 1 connects, the problem of efficiently avoiding that even tin occurs between first pad 1.
In the utility model embodiment, in order to ensure liquid solder can be along the stitch of the component between described
It is flowed in gap on first pad 1, gap described in the present embodiment is 0.3mm-0.5mm.By by the needle of the component
Gap setting between foot and the madial wall of the welding hole 11 is 0.3mm-0.5mm, ensures that and passes through tin stove in circuit board
When upper tin, liquid solder can be along the stitch of the component from being flowed in the gap on first pad 1, to realize
The connection of the stitch of the component and first pad 1, so guarantee reduce for the component stitch with
The tin amount that first pad 1 connects, the problem of to avoid tin is connected between pad.
In the utility model embodiment, it is connect with first pad 1 in order to ensure the stitch of the component, this reality
It is 0.15mm-0.17mm to apply the distance between the edge of welding hole 11 described in example and the edge of first pad 1.Passing through will
The distance between the edge of the edge of the welding hole 11 and first pad 1 is set as 0.15mm-0.17mm, with ensure from
The liquid solder flowed in the gap on first pad 1 can ensure the stitch of the component and first pad
Connection between 1, to ensure that the component can be connect with other devices.In addition, by by the edge of the welding hole 11 with
The distance between the edge of first pad 1 is set as 0.15mm-0.17mm, to ensure first weldering of adjacent two
Gap between disk 1 will not be too small, thus the problem of connecting tin between effectively further avoiding pad.
In the utility model embodiment, for the ease of direct insertion component to be welded on to the circuit board of the continuous tin prevention
On, rectangular array on the top of circuit board of multiple first pads 1 in the continuous tin prevention, more by making in the present embodiment
On the component side for the circuit board that a first pad, 1 rectangular array is distributed in the continuous tin prevention, in order to described straight
The stitch of the formula of plugging in component is connect across the welding hole 11 with first pad 1, consequently facilitating by the direct insertion component
It is welded on the circuit board of the continuous tin prevention.
In the utility model embodiment, the distance at the center of adjacent two welding holes 11 can be according to first device
The distance between two adjacent stitch of part are arranged, in the present embodiment between two adjacent stitch of the component
Distance is 1.27mm, and correspondingly, the distance at the center of adjacent two welding holes 11 is 1.27mm.
In the utility model embodiment, between further ensuring that the circuit board of the continuous tin prevention can avoid pad
Even tin occurs, the bottom of the circuit board of continuous tin prevention described in the present embodiment is equipped with welding surface, the welding surface and described first
Pad 1 is covered with green oil on opposite position.It is green by being covered on the welding surface position opposite with first pad 1
Oil, to play the role of welding resistance, to be effectively prevented from when the welding surface and the liquid solder contact, the welding surface
The problem of company's tin occurs on the position opposite with first pad 1, and then further avoid generation company tin between pad.
In the utility model embodiment, the cross-sectional shape of first pad 1 can be set according to actual use situation
It sets, the gap that need to only meet between the stitch of the component and the welding hole 11 can be such that scolding tin flows through, and the component
Stitch can be connect with first pad 1.In order to make design and simplify the structure, to reduce cost, it is preferable that this
The cross-sectional shape of first pad 1 described in embodiment is circle.
In addition, in the utility model embodiment, the cross-sectional shape of the welding hole 11 can also be according to actual use feelings
Condition is arranged, and the gap that need to only meet between the stitch of the component and the welding hole 11 can be such that scolding tin flows through, and the member
The stitch of device can be connect with first pad 1.In order to make design and simplify the structure, to further decrease into
This, it is preferable that the cross-sectional shape of welding hole 11 described in the present embodiment is circle.
In order to solve identical technical problem, the utility model also provides a kind of board, including component and above-mentioned
The stitch of the circuit board of continuous tin prevention, the component is welded on first pad 1.
In order to solve identical technical problem, the utility model also provides a kind of touch screen, including shell and above-mentioned
Board, the board are connected in the shell.
To sum up, the utility model provides a kind of circuit board of continuous tin prevention, board and touch screen, the top of the circuit board of continuous tin prevention
Portion is equipped with component side, and component side is equipped with multiple the first pads 1 for being connect with component, and the first pad 1 is equipped with weldering
Hole 11；When the stitch of component passes through welding hole 11, formed between the stitch and the madial wall of welding hole 11 of component for making weldering
The gap that tin flows through.By the way that the first pad 1 is arranged on component side, and make between the stitch of component and the madial wall of welding hole 11
Formation makes the gap that scolding tin flows through so that when circuit board is by tin on tin stove, liquid solder can be along the stitch of component
From first pad 1 at the top for flowing to circuit board in gap, it is connect with the first pad 1 for the stitch of component with reduction
Tin amount, to efficiently avoid connecting tin between pad so that solved without stealing soldering disk and artificial detin position by setting
The problem of connecting tin between pad, and then the production efficiency of circuit board is improved, reduce the production cost of circuit board.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (10)
1. a kind of circuit board of continuous tin prevention, which is characterized in that the top of the circuit board of the continuous tin prevention is equipped with component side, described
Component side is equipped with multiple the first pads for being connect with component, and first pad is equipped with welding hole；In first device
When the stitch of part passes through the welding hole, formed between the stitch of the component and the madial wall of the welding hole for making scolding tin stream
The gap crossed.
2. the circuit board of continuous tin prevention as described in claim 1, which is characterized in that the gap is 0.3mm-0.5mm.
3. the circuit board of continuous tin prevention as described in claim 1, which is characterized in that the edge of the welding hole and first pad
The distance between edge be 0.15mm-0.17mm.
4. the circuit board of continuous tin prevention as described in claim 1, which is characterized in that multiple first pads are in the continuous tin prevention
Circuit board top on rectangular array.
5. the circuit board of continuous tin prevention as described in claim 1, which is characterized in that the center of two adjacent welding holes away from
From for 1.27mm.
6. the circuit board of continuous tin prevention as described in any one in claim 1-5, which is characterized in that the circuit board of the continuous tin prevention
Bottom be equipped with welding surface, the welding surface is covered with green oil on the position opposite with first pad.
7. the circuit board of continuous tin prevention as described in any one in claim 1-5, which is characterized in that first pad it is transversal
Face shape is circle.
8. the circuit board of continuous tin prevention as described in any one in claim 1-5, which is characterized in that the cross section shape of the welding hole
Shape is circle.
9. a kind of board, which is characterized in that the electricity including component and such as claim 1-8 any one of them continuous tin preventions
The stitch of road plate, the component is welded on first pad.
10. a kind of touch screen, which is characterized in that including shell and board as claimed in claim 9, the board is connected to
In the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229832.4U CN207939835U (en) | 2018-02-08 | 2018-02-08 | A kind of circuit board of continuous tin prevention, board and touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229832.4U CN207939835U (en) | 2018-02-08 | 2018-02-08 | A kind of circuit board of continuous tin prevention, board and touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207939835U true CN207939835U (en) | 2018-10-02 |
Family
ID=63652377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820229832.4U Active CN207939835U (en) | 2018-02-08 | 2018-02-08 | A kind of circuit board of continuous tin prevention, board and touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207939835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113766765A (en) * | 2021-08-18 | 2021-12-07 | 惠州雷曼光电科技有限公司 | Circuit board and soldering assembly |
-
2018
- 2018-02-08 CN CN201820229832.4U patent/CN207939835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113766765A (en) * | 2021-08-18 | 2021-12-07 | 惠州雷曼光电科技有限公司 | Circuit board and soldering assembly |
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