CN217116508U - Connection structure and terminal of display screen and mainboard - Google Patents
Connection structure and terminal of display screen and mainboard Download PDFInfo
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- CN217116508U CN217116508U CN202122973197.5U CN202122973197U CN217116508U CN 217116508 U CN217116508 U CN 217116508U CN 202122973197 U CN202122973197 U CN 202122973197U CN 217116508 U CN217116508 U CN 217116508U
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Abstract
The utility model relates to a connection structure of display screen and mainboard, include: the end part of the flexible circuit board is provided with a gold finger, the gold finger is provided with a plurality of first pin feet, and the width of the first pin feet is narrower when the first pin feet are closer to the end part; a ZIF connector having a mating portion with a plurality of second pin legs; when the golden finger is obliquely inserted into the ZIF connector, each first pin of the golden finger is only electrically connected with the second pin corresponding to the plugging part. The utility model discloses an optimize the design of flexible circuit board golden finger, appear the short circuit when solving to insert to one side and produce the line tool or the product display screen problem of burning out.
Description
Technical Field
The utility model relates to a technical field of connector especially relates to a connection structure and terminal of display screen and mainboard.
Background
In the display screen industry at present, the interface of many display screens and complete machine mainboard end is the mode of ZIF connector and FPC golden finger grafting, when producing line test display screen, all can use this kind of connected mode, but in the grafting mode test, can appear following problem occasionally:
in the process of production line test plugging, due to the fact that the plugging directions are not opposite, the FPC is plugged into the ZIF connector in an inclined mode, the oblique plugging condition is shown in the figure 1-2, the FPC golden finger is already lapped to two pin pins of the ZIF connector, at the moment, the short circuit of the lines of the two adjacent pin pins is easily caused, and the problem of line burnout is caused.
Disclosure of Invention
For overcoming the problem that exists among the prior art, the utility model provides a connection structure and terminal of display screen and mainboard through optimizing FPC golden finger design, solves the short circuit appearing and producing line tool or product display screen burning problem that leads to when inserting to one side.
Therefore, the utility model provides a following technical scheme does:
the end part of the flexible circuit board is provided with a golden finger, the golden finger is provided with a plurality of first pin feet, and the width of the first pin foot of the golden finger is narrower when the first pin foot of the golden finger is closer to the end part of the golden finger;
a ZIF connector having a plug portion with a plurality of second pin legs;
when the golden finger is obliquely inserted into the ZIF connector, each first pin of the golden finger is only electrically connected with the corresponding second pin of the plugging part.
Preferably, the second pin is rectangular.
Preferably, the first pin is triangular or trapezoidal in shape.
As a preferred technical scheme, the shape of the first pin foot is a right triangle, or an isosceles trapezoid.
As the preferred technical scheme, the first pin foot in the middle of the golden finger and the first pin feet at the two ends of the golden finger are different in shape or length.
As a preferred technical scheme, the first pin foot of the golden finger close to the two end parts is in a right-angled triangle or an isosceles triangle shape, and the first pin foot of the middle part of the golden finger is in an isosceles trapezoid shape;
or the first pin foot of the golden finger close to the two end parts is in an isosceles trapezoid shape, and the first pin foot in the middle of the golden finger is in a right-angled triangle shape or an isosceles triangle shape.
As a preferred technical scheme, the first pin foot of the golden finger close to the two end parts is in a right triangle shape, and the first pin foot of the middle part of the golden finger is in an isosceles triangle shape;
or the pin feet of the golden finger close to the two end parts are in isosceles triangle shapes, and the pin feet of the middle part of the golden finger are in right-angled triangle shapes.
Preferably, the triangle vertex angle of the first pin towards the second pin of the ZIF connector is less than 10 degrees.
As a preferred technical scheme, the first pin foot comprises a first area and a second area, the left waist length of the first pin foot closer to the edge of the first area is smaller than the right waist length, and the left waist length of the first pin foot closer to the edge of the second area is larger than the right waist length.
The application also comprises a terminal which comprises the connecting structure of the display screen and the mainboard.
The technical scheme of the utility model beneficial effect that can obtain for the FPC who adopts the design of triangle-shaped golden finger, when injecting the ZIF connector to one side, can effectively avoid because insert the problem to one side and lead to FPC golden finger overlap joint to adjacent connector pin foot, adjacent circuit is not just not had the problem of burning out the product or burning out test fixture by the short circuit.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof of the present invention explain the present invention and do not form an improper limitation to the present invention. In the drawings:
FIG. 1 is a schematic view of a connection structure between a display screen and a motherboard in the prior art;
FIG. 2 is a schematic diagram of a flexible printed circuit board in a connection structure of a display screen and a motherboard according to the prior art;
fig. 3 is a schematic view of a connection structure between the display screen and the motherboard in this embodiment 1;
fig. 4 is a schematic structural diagram of a flexible circuit board in the connection structure between the display screen and the main board in this embodiment 1;
description of reference numerals:
a ZIF connector 10; a flexible circuit board 11; a gold finger first pin 111; a gold finger second pin 112; a third pin 101 of the plug part; a fourth pin 102 of the plug part; the first pin is electrically contacted with the third pin by A; the first pin and the third pin are in electrical contact B.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. In the description of the present invention, it is noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
This embodiment 1 provides a connector comprising
The flexible printed circuit board 11, the end of the flexible printed circuit board 11 has a gold finger, the gold finger has a plurality of first pin feet, the pin feet of the gold finger are closer to the end and the width is narrower;
The fpc (flexible Printed circuit) flexible circuit board 11 is a flexible Printed circuit board which is made of a polyimide or polyester film as a base material and has high reliability and excellent flexibility, and has the characteristics of high wiring density, light weight, thin thickness and good bending property.
The gold finger of the flexible circuit board 11 is commonly known as an edge connector for connecting the flexible circuit boards 11, and is called a "gold finger" because the surface of the gold finger is plated with gold and the conductive contact pieces are arranged like fingers. The gold finger is actually covered with a layer of gold on the copper-clad plate through an electroplating process, because the gold has extremely strong oxidation resistance, an internal circuit can be protected from being corroded, the electric conductivity is also very strong, signal loss can not be caused, and meanwhile, the gold has extremely strong ductility, so that the contact area between the contacts can be larger under proper pressure, the contact resistance is reduced, and the signal transmission efficiency is improved. Because the thickness of the plating layer is only tens of microns, the plating layer is easy to wear, and therefore, the original piece with the golden finger is not required to be pulled out and inserted so as to prolong the service life. It is a part of the flexible circuit board 11 and is formed by extending one end of the copper foil layer of the flexible circuit board 11.
The ZIF connector 10(Zero Insertion Force) is an electronic connector that can be inserted and removed with a small Force.
According to fig. 3-4, the present embodiment designs each rectangular pin of the prior art FPC golden finger to be triangular or trapezoidal. Each pin of the mating part of the ZIF connector is rectangular.
Preferably, the pin width of the golden finger is narrower as the golden finger is closer to the end part.
When the FPC golden finger inserts ZIF connector 10, no matter insert or insert to one side, every pin foot of golden finger all only is connected with the pin foot electricity that ZIF connector 10 grafting portion corresponds, fine avoiding appearing the FPC golden finger and taking on two pin feet of ZIF connector 10, lead to the circuit short circuit of two adjacent pin feet, problem that the circuit burns out.
Preferably, the shape of the pin of the golden finger is a right triangle, an isosceles triangle or an isosceles trapezoid.
Preferably, the shape of the pin near the two end parts of the golden finger is a right triangle or an isosceles triangle, the shape of the pin at the middle part of the golden finger is an isosceles trapezoid, or the shape of the pin near the two end parts of the golden finger is an isosceles trapezoid, and the shape of the pin at the middle part of the golden finger is a right triangle or an isosceles triangle.
Preferably, the shape of the pin foot of the golden finger close to the two end parts is a right triangle, the shape of the pin foot in the middle part of the golden finger is an isosceles triangle, or the shape of the pin foot of the golden finger close to the two end parts is an isosceles triangle, and the shape of the pin foot in the middle part of the golden finger is a right triangle.
Preferably, the pin of the golden finger comprises a first area and a second area, wherein the first area and the second area are a left part and a right part of the pin of the golden finger as shown in fig. 3-4, the left waist length of the pin closer to the edge of the first area is smaller than the right waist length, and the left waist length of the pin closer to the edge of the second area is larger than the right waist length.
Preferably, the pin feet at the middle part and the two ends of the golden finger are different in shape and length. When the FPC gold finger shown in fig. 3 is inserted into the ZIF connector 10, the FPC gold finger is divided into two parts of a left side and a right side, the length of the FPC gold finger on the left side is longer than that of the pin on the left side, or the FPC gold finger is divided into three parts of a left side, a middle part and a right side, the length of the pin of the FPC gold finger on the left side is longer than that of the pin on the right side and the middle part, and the length of the pin in the middle part is shorter than that of the right side.
No matter the shape of the pin foot of the golden finger is isosceles triangle, right triangle or isosceles trapezoid, each pin foot of the FPC golden finger is electrically connected with the pin foot corresponding to the ZIF connector.
Preferably, the angle of the triangle apex or trapezoid apex towards the gold finger pin of the ZIF connector 10 is less than 10 degrees.
Preferably, the pin feet of the golden finger comprise a left waist and a right waist, and the length of the left waist of the pin feet close to the two ends is larger than that of the right waist.
Preferably, the number of pins of the insertion part of the ZIF connector 10 corresponds to the number of pins of the gold finger. The number of the pins of the ZIF plugging part and the number of the pins of the golden finger are at least two.
Preferably, the gold finger pins comprise a first gold finger pin 111 and a second gold finger pin 112, the ZIF connector comprises a third gold finger pin 101 of the insertion part and a fourth gold finger pin 102 of the insertion part, the first gold finger pin 111 is only in electrical contact with the fourth gold finger pin 102 of the insertion part of the ZIF connector 10, and the first gold finger pin and the third gold finger pin 101 are in electrical contact with each other, so that the situation that the first gold finger pin and the third gold finger pin are in electrical contact with each other in the prior art as shown in fig. 1 and then cause the problem of circuit burnout is avoided.
The specific shape of pin foot, specific length and specific quantity to the golden finger can satisfy no matter just inserting or insert to one side, every pin foot of golden finger all only with the pin foot electricity that grafting portion corresponds be connected can, also can be set up according to actual need by technical personnel in the field, the embodiment of the utility model provides a do not do specific restriction to this.
Adopt the FPC of triangle-shaped golden finger design, when injecting the ZIF connector to one side, can effectively avoid because insert the problem to one side and lead to FPC golden finger overlap joint to adjacent connector pin, adjacent circuit is not by the short circuit, just does not have the problem of burning out the product or burning out test fixture yet.
Example 2
The embodiment further provides a terminal, which comprises the connection structure of the display screen and the main board disclosed in the embodiment 1. The terminal of this embodiment 2 may include a mobile phone, a tablet computer, a player, an electronic dictionary, a television, etc. using a flexible circuit board golden finger, and by optimizing the design of the FPC golden finger, not only the yield of the product can be improved, but also the waste of production resources can be reduced.
The above detailed description is given to a connection structure between a display screen and a main board and a terminal in the embodiment of the present application, and a specific example is applied in the description to explain the principle and the embodiment of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (7)
1. The utility model provides a connection structure of display screen and mainboard which characterized in that includes:
the flexible printed circuit board is characterized in that a gold finger is arranged at the end part of the flexible printed circuit board, the gold finger is provided with a plurality of first pin feet, and the width of the first pin feet is narrower when the first pin feet are closer to the end part;
a ZIF connector having a mating portion with a plurality of second pin legs;
when the golden finger is obliquely inserted into the ZIF connector, each first pin of the golden finger is only electrically connected with the second pin corresponding to the plugging part.
2. The connection structure of claim 1, wherein said second pin is rectangular.
3. The connection structure according to claim 1, wherein the first pin is triangular or trapezoidal in shape.
4. The connection structure according to claim 1, wherein the first pin is shaped as a right triangle, or an isosceles trapezoid.
5. The connection structure according to claim 1, wherein the first pin of the middle portion of the gold finger and the first pin of the two ends of the gold finger are different in shape or length.
6. The connecting structure according to claim 1, wherein the first pin shape of the gold finger near the two end portions is a right triangle or an isosceles triangle, and the first pin shape of the gold finger in the middle portion is an isosceles trapezoid;
or the first pin foot of the golden finger close to the two end parts is in an isosceles trapezoid shape, and the first pin foot in the middle of the golden finger is in a right-angled triangle shape or an isosceles triangle shape.
7. The connecting structure according to claim 1, wherein the first pin shape of the golden finger near the two end portions is a right triangle, and the first pin shape of the golden finger in the middle portion is an isosceles triangle;
or the first pin feet of the golden finger close to the two end parts are in isosceles triangle shapes, and the first pin feet of the middle part of the golden finger are in right-angled triangle shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973197.5U CN217116508U (en) | 2021-11-30 | 2021-11-30 | Connection structure and terminal of display screen and mainboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973197.5U CN217116508U (en) | 2021-11-30 | 2021-11-30 | Connection structure and terminal of display screen and mainboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217116508U true CN217116508U (en) | 2022-08-02 |
Family
ID=82588020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122973197.5U Active CN217116508U (en) | 2021-11-30 | 2021-11-30 | Connection structure and terminal of display screen and mainboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217116508U (en) |
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2021
- 2021-11-30 CN CN202122973197.5U patent/CN217116508U/en active Active
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