CN206948710U - Golden finger structure and flexible PCB - Google Patents
Golden finger structure and flexible PCB Download PDFInfo
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- CN206948710U CN206948710U CN201720672191.5U CN201720672191U CN206948710U CN 206948710 U CN206948710 U CN 206948710U CN 201720672191 U CN201720672191 U CN 201720672191U CN 206948710 U CN206948710 U CN 206948710U
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- golden finger
- cover layer
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Abstract
Golden finger structure disclosed in the utility model, for flexible PCB, golden finger structure includes golden finger body, the first cover layer and the second cover layer.Golden finger body includes fixing end and connection end, and fixing end is connected with flexible PCB, and connection end is used to be connected with element to be connected.First cover layer is arranged on a surface of fixing end, and the first cover layer is corresponding with fixing end while being in the first curve.Second cover layer is arranged on the surface opposite with the first cover layer in fixing end, and the second cover layer is corresponding with fixing end while being in the second curve.First cover layer edge corresponding with fixing end is curved, golden finger structure is reduced in stress caused by the first cover layer edge corresponding with fixing end, second cover layer edge corresponding with fixing end is also curved, golden finger structure is reduced in stress caused by the second cover layer edge corresponding with fixing end, so as to improve the intensity of golden finger structure.The invention also discloses a kind of flexible PCB.
Description
Technical field
It the utility model is related to circuit board technology field, and in particular to a kind of golden finger structure and flexible PCB.
Background technology
Existing golden finger structure is easily broken off when transporting or being connected for other electronic components, so as to cause golden finger
Structure it is electrical bad.
Utility model content
Embodiment of the present utility model provides a kind of golden finger structure and flexible PCB.
The golden finger structure of the utility model embodiment, for flexible PCB, the golden finger structure includes：
Golden finger body, the golden finger body include fixing end and connection end, the fixing end and the flexible circuit
Plate connects, and the connection end is used to be connected with element to be connected；
First cover layer, first cover layer are arranged on a surface of the fixing end, first cover layer with
While being in the first curve corresponding to the fixing end；With
Second cover layer, second cover layer are arranged in the fixing end, second cover layer and described first
Cover layer is located on two opposite surfaces of the fixing end respectively, second cover layer corresponding with the fixing end one
Side is in the second curve.
In some embodiments, first curve includes crest and trough, and second curve includes crest and ripple
Paddy, in the projection towards the golden finger body, the crest of the crest of first curve and second curve staggers, institute
The trough for stating the trough and second curve of the first curve staggers.The first cover layer and the fixing end in the utility model
When corresponding one side is in the first curve, reduces golden finger structure and answered caused by the first cover layer edge corresponding with fixing end
Power；Second cover layer edge corresponding with fixing end is also curved, reduces golden finger structure in the second cover layer and fixing end
Stress caused by corresponding edge, so as to improve the intensity of golden finger structure.
In some embodiments, orthographic projection of first cover layer on the golden finger body is completely covered described
Orthographic projection of second cover layer on the golden finger body；Or
First cover layer is completely covered described in orthographic projection of second cover layer on the golden finger body
Orthographic projection on golden finger body；Or
First cover layer is corresponding with the fixing end while orthographic projection on the golden finger body, and described
Second cover layer is corresponding with the fixing end while the orthographic projection on the golden finger body is intersected；Or
The crest of first curve is relative with the trough interval of second curve, the trough of first curve and institute
The peak separation for stating the second curve is relative.It is corresponding with fixing end in the first cover layer so can further to reduce golden finger structure
Edge caused by stress, and further reduce golden finger structure caused by the second cover layer edge corresponding with fixing end answering
Power, and then avoid golden finger structure from being fractureed readily along the first curve edge corresponding with fixing end, or/and along the second curve
Edge corresponding with fixing end fractures.
In some embodiments, the golden finger body includes base material and multiple fingers, and the multiple finger is arranged on
On opposite two sides of the base material, the spaced setting of multiple fingers on the base material same side.Due to position
In the spaced setting of multiple fingers on base material same side, cause short circuit so as to avoid finger from linking together.
In some embodiments, each finger offers via hole at the connection end, positioned at the base material
The position of the via hole of adjacent two finger on same side is different.The via hole of two adjacent fingers
Position is different, that is to say, that the center of multiple via holes not on the same line, due to finger offer it is strong at via hole
Degree is less than the intensity in the other positions of finger, it is thus possible to avoids line of centres folding of the golden finger structure along multiple via holes
It is disconnected.
In some embodiments, each end of the finger at the connection end offers semi-circular hole.Opening
For semi-circular hole, when finger and element to be connected welding, welding material (for example, scolding tin) can be diffused in opening, make hand
Finger can be preferably connected with element to be connected.
In some embodiments, it is at least one of gold-plated to include copper foil, goldleaf or copper foil surface for the finger.This
Sample can make finger have preferable electric conductivity and corrosion resistance.
In some embodiments, first cover layer is included from the both ends of first curve along from the fixing end
The first enhanced portion extended to the direction of the connection end, first enhanced portion are located at two sides of the golden finger body
Edge；Or/and
Second cover layer is included from the both ends of second curve along from the fixing end to the side of the connection end
To the second enhanced portion of extension, second enhanced portion is located at the both sides of the edge of the golden finger body.When golden finger structure exists
When being bent in the presence of power, the first enhanced portion, the second enhanced portion can absorb part folding force, so as to enhance golden finger
The intensity of structure.
In some embodiments, the width of first enhanced portion or/and second enhanced portion is more than or equal to
0.2mm.If the width of the first enhanced portion is less than 0.2mm, the folding force that the first enhanced portion can be caused to absorb is smaller, does not have
Further enhance the effect of the intensity of golden finger structure.
In some embodiments, the length of the connection end is 0.1mm-3mm.If the because too short meeting of the length of connection end
It is unfavorable for golden finger structure to be connected with element to be connected, easily produces larger moment of flexure if connection end is oversize and cause golden finger structure
Fracture, so it is suitable that the length of connection end, which is 0.1mm-3mm,.
In some embodiments, first curve is wave, and the cycle of the wave is 0.5mm-20mm；
Or/and
Second curve is wave, and the cycle of the wave is 0.5mm-20mm.Due to the cycle mistake of wave
When small (that is the quantity of crest and trough is too many), on the one hand, wave can be considered as close to straight line, just not have reduction
The effect of stress；On the other hand, the manufacture less wave of wave period is relatively difficult and cost is also higher.When
The cycle of wave is excessive, then the first curve (or second curve) only forms an arcuation, golden finger knot on golden finger structure
Structure is torn readily along the first curve (or second curve).
The flexible PCB of the utility model embodiment includes：
Substrate；With
Golden finger structure described in above-mentioned any one embodiment, the golden finger structure are connected with the body.
The flexible PCB and golden finger structure of the utility model embodiment in the both sides of golden finger body by distinguishing
First cover layer and the second cover layer are set, and the first cover layer edge corresponding with fixing end is curved, reduces golden finger knot
For structure in stress caused by the first cover layer edge corresponding with fixing end, the second cover layer edge corresponding with fixing end is also in song
Line, golden finger structure is reduced in stress caused by the second cover layer edge corresponding with fixing end, so as to improve golden finger
The intensity of structure.
The additional aspect and advantage of embodiment of the present utility model will be set forth in part in the description, partly will be from
Become obvious in following description, or recognized by the practice of embodiment of the present utility model.
Brief description of the drawings
In description of the of the present utility model above-mentioned and/or additional aspect and advantage from combination accompanying drawings below to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the floor map of the golden finger structure of some embodiments of the utility model；
Fig. 2 is the sectional view of the golden finger structure of some embodiments of the utility model；
Fig. 3 is the floor map of the golden finger structure of some embodiments of the utility model；
Fig. 4 is the floor map of the golden finger structure of some embodiments of the utility model；
Fig. 5 is the floor map of the golden finger structure of some embodiments of the utility model；
Fig. 6 is the sectional view of the golden finger structure of some embodiments of the utility model；With
Fig. 7 is the floor map of the golden finger structure of some embodiments of the utility model.
Main element symbol description：
Golden finger structure 100, golden finger body 10, fixing end 11, connection end 12, matrix 13, finger 14, via hole 142,
End 144, the first cover layer 20, the first curve 22, the first enhanced portion 24, the second cover layer 30, the enhancing of the second curve 32, second
Portion 34.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ",
" second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in
Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.
In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the golden finger structure 100 of the utility model embodiment is used for flexible PCB (not shown), gold
Finger structure 100 includes golden finger body 10, the first cover layer 20 and the second cover layer 30.Golden finger body 10 includes fixing end
11 and connection end 12, fixing end 11 be connected with the substrate (not shown) of flexible PCB, connection end 12 be used for and element to be connected
(not shown) connects.First cover layer 20 is arranged on a surface of fixing end 11, and the first cover layer 20 is corresponding with fixing end 11
One side be in the first curve 22.Second cover layer 30 is arranged on the surface opposite with the first cover layer 20 in fixing end 11
On, the second cover layer 30 is corresponding with fixing end 11 while being in the second curve 32.
Fig. 1-3 are referred to, when the first cover layer 20 is corresponding with fixing end 11 while when being straight line, the second cover layer 30
When one side corresponding with fixing end 11 is also straight line, if golden finger structure 100 bends under force, folding force is concentrated
In the first cover layer 20 and 11 corresponding edge of fixing end, it is corresponding with fixing end 11 that folding force also focuses on the second cover layer 30
Edge, that is to say, that golden finger structure 100 can produce stress collection in the first cover layer 20 with 11 corresponding edge of fixing end
In phenomenon, the second cover layer 30 can also produce the phenomenon of stress concentration, now, golden finger knot with 11 corresponding edge of fixing end
Structure 100 fractures readily along the first cover layer 20 with 11 corresponding edge of fixing end, also readily along the second cover layer 30 and admittedly
Edge corresponding to fixed end 11 fractures.
When the first cover layer 20 is corresponding with fixing end 11 while when being curve, if golden finger structure 100 is in the effect of power
The first cover layer of lower edge 20 is bent with 11 corresponding edge of fixing end, and the folding force at the trough of the first curve 22 can be along ripple
Paddy is spread to the first cover layer 20 (or transmission), and the folding force at the crest of the first curve 22 can be along crest to golden finger body
Spread (or transmission) 10 connection end 12, that is to say, that golden finger structure 100 is corresponding with fixing end 11 in the first cover layer 20
Edge caused by stress concentration significantly reduce, now, golden finger structure 100 is not easy along the first cover layer 20 and fixing end 11
Corresponding edge fractures.When the second cover layer 30 is corresponding with fixing end 11 while when being curve, if golden finger structure 100 is in power
In the presence of bent along the second cover layer 30 and 11 corresponding edge of fixing end, the folding force meeting at the trough of the second curve 32
Spread along trough to the second cover layer 30 (or transmission), the folding force at the crest of the second curve 32 can be along crest to golden hand
Spread (or transmission) connection end 12 for referring to body 10, that is to say, that golden finger structure 100 is in the second cover layer 30 and fixing end 11
Stress concentration caused by corresponding edge is significantly reduced, and now, golden finger structure 100 is not easy along the second cover layer 30 with fixing
Edge corresponding to end 11 fractures.It should be noted that crest referred to herein and trough be relative to element to be connected (or
Connection end 12) for, as shown in figure 1, closest to the position of element to be connected (or connection end 12) be crest, farthest away to be connected
The position of element (or connection end 12) is trough.
The golden finger structure 100 of the utility model embodiment by setting first respectively in the both sides of golden finger body 10
The cover layer 30 of cover layer 20 and second, the first cover layer 20 and 11 corresponding edge of fixing end are curved, reduce golden finger knot
Structure 100 is corresponding with fixing end 11 in the first cover layer 20 and stress, the second cover layer 30 caused by 11 corresponding edge of fixing end
Edge it is also curved, reduce golden finger structure 100 should caused by the second cover layer 30 and 11 corresponding edge of fixing end
Power, so as to improve the intensity of golden finger structure 100.
Referring to Fig. 1, the golden finger structure 100 of the utility model embodiment is used for flexible PCB, golden finger structure
100 include golden finger body 10, the first cover layer 20 and the second cover layer 30.
The flexible PCB of the utility model embodiment includes substrate and the golden finger structure 100 with substrate connection.
Referring to Fig. 4, golden finger body 10 includes fixing end 11 and connection end 12, fixing end 11 and substrate connection, connection
End 12 is used to be connected with element to be connected, and element to be connected can include input port, output port, LED light guiding films etc..Connection
The length L1 at end 12 can be 0.1mm-3mm, for example, the length L1 of connection end 12 can be： 0.1mm、0.5mm、0.8mm、
Any one in 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm.If even
The too short golden finger structure 100 that can be unfavorable for of length for connecing end 12 is connected with element to be connected, is easily produced if connection end 12 is oversize
Larger moment of flexure and cause golden finger structure 100 to fracture.
Fig. 4, Fig. 5 and Fig. 6 are referred to, golden finger body 10 includes base material 13 and multiple fingers 14, and multiple fingers 14 are set
On opposite two sides of base material 13, the finger 14 on the both sides of base material 13 corresponds (position, shape and length difference
It is corresponding), the 14 spaced setting of multiple fingers on the same side of base material 13, so as to avoiding finger 14 from linking together
Cause short circuit.The substantially rectangular sheet of each finger 14.Each finger 14 offers via hole 142 at connection end 12,
It is corresponding and interconnected positioned at the via hole 142 corresponding to the both sides of base material 13 on finger 14, that is to say, that via hole 142 is successively
Through positioned at the finger 14 of the side of base material 13, base material 13 and the finger 14 positioned at the opposite side of base material 13.Via hole 142 can be in circle
Shape, the finger part at via hole 142 in a ring and outer toroid diameter be more than finger 14 width.Each finger 14 exists
The end 144 of connection end 12 offers connector, connector can semicircular in shape, end 144 can be in semi-circular shape, and semicircular ring
Outer diameter of a circle is more than the width of finger 14.Each finger 14 is in the end 144 of connection end 12 and base material 13 in connection end 12
End is substantially flush and linked together.It is at least one of gold-plated that finger 14 includes copper foil, goldleaf or copper foil surface, makes hand
Referring to 14 has preferable electric conductivity and corrosion resistance.The material of base material 13 include Kapton (PolyimideFilm,
PI)。
Referring to Fig. 4, the first cover layer 20 is arranged on the surface of fixing end 11 1, specifically, the first cover layer 20 covers
One end of finger 14 on the side of fixing end 11 and one end (the namely end for exposing the finger 14 on the side of connection end 12
144), the first cover layer 20 is corresponding with fixing end 11 while being in the first curve 22.First curve 22 includes crest and trough, the
One curve 22 can be wave, and the cycle of wave is 0.5mm-20mm, for example, the cycle of wave can be：0.5mm、
It is any in 0.8mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 5mm, 10mm, 15mm, 20mm
One, it is preferred that the cycle of wave is 1.2mm.
Fig. 5-7 is referred to, the second cover layer 30 is arranged on the surface opposite with the first cover layer 20 in fixing end 11
On, specifically, the second cover layer 30 also covers one end of the finger 14 on the side of fixing end 11 and exposed on the side of connection end 12
Finger 14 one end (namely end 144), the second cover layer 30 is corresponding with fixing end 11 while being in the second curve 32.The
Two curves 32 include crest and trough, and the second curve 32 can be wave, and the cycle of wave is 0.5mm-20mm, for example, ripple
The cycle of unrestrained line can be 0.5mm, 0.8mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 5mm,
Any one in 10mm, 15mm, 20mm, it is preferred that the cycle of wave is 1.2mm.
Specifically, if the cycle of wave is too small (that is the quantity of crest and trough is too many), wave can be with
It is considered as the effect for close to straight line, just not having and reducing stress.The cycle of wave is excessive, then the first curve 22 (or the second curve
32) arcuation is only formed on golden finger structure 100, golden finger structure 100 is readily along the first curve 22 (or the second curve
32) tear.The cycle of wave is influenceed by the cutter for manufacturing (cutting) wave, generally, manufacture wave week
Phase less wave is relatively difficult and cost is also higher.Because golden finger structure 100 generally comprises two or more
Finger 14, preferably six fingers 14, and the width W1 of golden finger structure 100 is typically between 5mm-6mm, when wave
When cycle is 1.2mm, therefore, golden finger structure 100 at least has two crests and causes the intensity of golden finger structure 100 with trough
It is increased, and the quantity of crest and trough again will not be too many, will not increase difficulty of processing.
Fig. 1-3 are referred to, when the first cover layer 20 is corresponding with fixing end 11 while when being straight line, the second cover layer 30
When one side corresponding with fixing end 11 is also straight line, if golden finger structure 100 bends under force, folding force is concentrated
In the first cover layer 20 and 11 corresponding edge of fixing end, it is corresponding with fixing end 11 that folding force also focuses on the second cover layer 30
Edge, that is to say, that golden finger structure 100 can produce stress collection in the first cover layer 20 with 11 corresponding edge of fixing end
In phenomenon, the second cover layer 30 can also produce the phenomenon of stress concentration, now, golden finger knot with 11 corresponding edge of fixing end
Structure 100 fractures readily along the first cover layer 20 with 11 corresponding edge of fixing end, also readily along the second cover layer 30 and admittedly
Edge corresponding to fixed end 11 fractures.
When the first cover layer 20 is corresponding with fixing end 11 while when being curve, if golden finger structure 100 is in the effect of power
The first cover layer of lower edge 20 is bent with 11 corresponding edge of fixing end, and the folding force at the trough of the first curve 22 can be along ripple
Paddy is spread to the first cover layer 20 (or transmission), and the folding force at the crest of the first curve 22 can be along crest to golden finger body
Spread (or transmission) 10 connection end 12, that is to say, that golden finger structure 100 is corresponding with fixing end 11 in the first cover layer 20
Edge caused by stress concentration significantly reduce, now, golden finger structure 100 is not easy along the first cover layer 20 and fixing end 11
Corresponding edge fractures.When the second cover layer 30 is corresponding with fixing end 11 while when being curve, if golden finger structure 100 is in power
In the presence of bent along the second cover layer 30 and 11 corresponding edge of fixing end, the folding force meeting at the trough of the second curve 32
Spread along trough to the second cover layer 30 (or transmission), the folding force at the crest of the second curve 32 can be along crest to golden hand
Spread (or transmission) connection end 12 for referring to body 10, that is to say, that golden finger structure 100 is in the second cover layer 30 and fixing end 11
Stress concentration caused by corresponding edge is significantly reduced, and now, golden finger structure 100 is not easy along the second cover layer 30 with fixing
Edge corresponding to end 11 fractures.
The golden finger structure 100 of the utility model embodiment by setting first respectively in the both sides of golden finger body 10
The cover layer 30 of cover layer 20 and second, the first cover layer 20 and 11 corresponding edge of fixing end are curved, reduce golden finger knot
Structure 100 is corresponding with fixing end 11 in the first cover layer 20 and stress, the second cover layer 30 caused by 11 corresponding edge of fixing end
Edge it is also curved, reduce golden finger structure 100 should caused by the second cover layer 30 and 11 corresponding edge of fixing end
Power, so as to improve the intensity of golden finger structure 100.
The golden finger structure 100 of the utility model embodiment also has the advantages that：First, when finger 14 is with treating
When connecting element connects, the welding material (for example, scolding tin) on finger 14, which can flow into via hole 142, makes welding material and finger
14 contact area is bigger, so that the connection effect of finger 14 is preferable.It is rounded to simultaneously turn on hole 142, and is located at via hole
Finger part at 142 in a ring and outer toroid diameter be more than finger 14 width, turned on so as to reduce finger 14
Stress is produced at hole 142, and then lifts the intensity of finger 14.
Second, the end 144 of finger 14 sets opening, is open as semi-circular hole, when finger 14 and element to be connected weld
When, welding material (for example, scolding tin) can be diffused in opening, finger 14 is preferably connected with element to be connected.
In some embodiments, adjacent two finger 14 on the same side of base material 13 of above-mentioned embodiment is led
The position of through hole 142 is different, that is to say, that the distance D1 at the center of two adjacent via holes 142 to end 144 is differed.
The position of the via hole 142 of two adjacent fingers 14 is different, that is to say, that the center of multiple via holes 142 is not the same as always
On line, due to intensity of the finger 14 on other positions of the intensity at via hole 142 less than finger 14 are offered, it is thus possible to
The line of centres of the golden finger structure 100 along multiple via holes 142 is avoided to fracture.
In other embodiments, in the projection towards the golden finger body 10, the first of above-mentioned embodiment is bent
The crest of the crest of line 22 and the second curve 32 staggers, and the trough of the trough of the first curve 22 and the second curve 32 staggers, so as to
Golden finger structure 100 can further be reduced in the first cover layer 20 and stress caused by 11 corresponding edge of fixing end, and entered
One step reduces golden finger structure 100 in the second cover layer 30 and stress caused by 11 corresponding edge of fixing end, and then avoids gold
Finger structure 100 fractures readily along the first curve 22 with 11 corresponding edge of fixing end, or/and along the second curve 32 and admittedly
Edge corresponding to fixed end 11 fractures.Specifically, ripple of the crest of the first curve 22 in the projection towards the golden finger body 10
Peak can be completely relative in the trough of the projection towards the golden finger body 10 with the trough of the second curve 32；Or first
The crest of curve 22 is in a part for the crest of the projection towards the golden finger body 10 and the trough of the second curve 32 in court
The crest of projection to the golden finger body 10 is corresponding, and the trough of another part and the second curve 32 is towards the golden finger
The trough of the projection of body 10 is corresponding.
Fig. 1 and Fig. 6 is referred to, it is in some embodiments, above-mentioned in the perspective plane towards the golden finger body 10
The crest of the crest and the second curve 32 of first curve 22 of embodiment staggers, the trough of the first curve 22 and the second curve 32
Trough stagger, and orthographic projection of the second cover layer 30 of above-mentioned embodiment on golden finger body 10 is completely covered first and covered
Orthographic projection of the epiphragma 20 on golden finger body 10, so as to further reduce golden finger structure 100 in the first cover layer 20
With 11 corresponding edge of fixing end caused by stress, and further reduce golden finger structure 100 the second cover layer 30 with it is fixed
Stress caused by edge corresponding to end 11, and then avoid golden finger structure 100 right readily along the first curve 22 and fixing end 11
The edge answered fractures, or/and is fractureed along the second curve 32 with 11 corresponding edge of fixing end.Certainly, in other embodiment
In, the second cover layer 30 can be completely covered on golden finger body 10 in orthographic projection of first cover layer 20 on golden finger body 10
Orthographic projection.
In some embodiments, in the projection towards the golden finger body 10, the first of above-mentioned embodiment is bent
The crest of the crest of line 22 and the second curve 32 staggers, and the trough of the trough of the first curve 22 and the second curve 32 staggers, and on
The first cover layer 20 for stating embodiment is corresponding with fixing end 11 while orthographic projection on golden finger body 10, and second covers
Epiphragma 30 is corresponding with fixing end 11 while the orthographic projection on golden finger body 10 is intersected, so as to further reduce golden hand
Refer to structure 100 in the first cover layer 20 and stress caused by 11 corresponding edge of fixing end, and further reduce golden finger structure
100 in the second cover layer 30 and stress caused by 11 corresponding edge of fixing end, so avoid golden finger structure 100 readily along
First curve 22 fractures with 11 corresponding edge of fixing end, or/and is rolled over along the second curve 32 with 11 corresponding edge of fixing end
It is disconnected.
Referring to Fig. 1, in some embodiments, in the projection towards the golden finger body 10, above-mentioned embodiment party
The crest of the crest and the second curve 32 of first curve 22 of formula staggers, the ripple of the trough of the first curve 22 and the second curve 32
Paddy is staggered, and the crest of the first curve 22 of above-mentioned embodiment is relative with the trough interval of the second curve 32, the first curve 22
Trough it is relative with the peak separation of the second curve 32, so as to further reduce golden finger structure 100 in the first cover layer
20 with 11 corresponding edge of fixing end caused by stress, and caused by the second cover layer 30 and 11 corresponding edge of fixing end
Stress, and then avoid golden finger structure 100 from being fractureed readily along the first curve 22 with 11 corresponding edge of fixing end, or/and edge
The second curve 32 to fracture with 11 corresponding edge of fixing end.Interval herein is relative to be referred to：The crest of first curve 22 is in court
The trough of projection and the second curve 32 to the golden finger body 10 is interval in the projection towards the golden finger body 10
Relative.
Referring to Fig. 4, in some embodiments, the first cover layer 20 of above-mentioned embodiment is included from the first curve
22 both ends are located at golden finger along from fixing end 11 to the first enhanced portion 24 of the direction of connection end 12 extension, the first enhanced portion 24
The both sides of the edge of body 10.When golden finger structure 100 bends under force, the first enhanced portion 24 can absorb
Part folding force, so as to enhance the intensity of golden finger structure 100.In some embodiments, the width of the first enhanced portion 24
W2 is more than or equal to 0.2mm.If the width W2 of the first enhanced portion 24 is less than 0.2mm, the first enhanced portion 24 can be caused to absorb
Folding force it is smaller, do not have the effect for the intensity for further enhancing golden finger structure 100.
Referring to Fig. 7, in some embodiments, the second cover layer 30 of above-mentioned embodiment is included from the second curve
32 both ends are located at golden finger along from fixing end 11 to the second enhanced portion 34 of the direction of connection end 12 extension, the second enhanced portion 34
The both sides of the edge of body 10.When golden finger structure 100 bends under force, the second enhanced portion 34 can absorb portion
Divide folding force, so as to enhance the intensity of golden finger structure 100.In some embodiments, the width W3 of the second enhanced portion 34
More than or equal to 0.2mm.If the width W3 of the second enhanced portion 34 is less than 0.2mm, the second enhanced portion 34 can be caused to absorb
Folding force is smaller, does not have the effect for the intensity for further enhancing golden finger structure 100.
Referring to Fig. 1, in some embodiments, the first cover layer 20 of above-mentioned embodiment is included from the first curve
22 both ends are located at golden finger along from fixing end 11 to the first enhanced portion 24 of the direction of connection end 12 extension, the first enhanced portion 24
The both sides of the edge of body 10, and the second cover layer 30 of above-mentioned embodiment is included from the both ends of the second curve 32 along from fixing end
11 the second enhanced portion 34 extended to the direction of connection end 12, the second enhanced portion 34 are located at the both sides of the edge of golden finger body 10.
When golden finger structure 100 bends under force, the first enhanced portion 24 and the second enhanced portion 34 can absorb portion
Divide folding force, so as to further enhancing the intensity of golden finger structure 100.In some embodiments, first enhanced portion 24
Width W2 is more than or equal to 0.2mm, and the width W3 of the second enhanced portion 34 is more than or equal to 0.2mm.If the width of the first enhanced portion 24
Degree W2 and the width W3 of the second enhanced portion 34 are less than 0.2mm, and the first enhanced portion 24 and the second enhanced portion 34 can be caused to absorb
Folding force it is smaller, then do not have the effect for the intensity for further enhancing golden finger structure 100.
Specifically, the utility model embodiment can only meet above-mentioned one of embodiment or meet simultaneously above-mentioned
Multiple embodiments, that is to say, that it is new that the embodiment that said one or multiple embodiments combine falls within this practicality
The protection domain of type embodiment.
In the description of this specification, reference term " some embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment party
Formula or example description specific features, structure, material or feature be contained at least one embodiment of the present utility model or
In example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And
And specific features, structure, material or the feature of description can close in any one or more embodiments or example
Suitable mode combines.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one feature.In description of the present utility model, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-mentioned embodiment party
Formula is exemplary, it is impossible to is interpreted as to limitation of the present utility model, one of ordinary skill in the art is of the present utility model
In the range of above-mentioned embodiment can be changed, change, replace and modification, the scope of the utility model by claim and
Its equivalent limits.
Claims (12)
1. a kind of golden finger structure, for flexible PCB, it is characterised in that the golden finger structure includes：
Golden finger body, the golden finger body include fixing end and connection end, and the fixing end connects with the flexible PCB
Connect, the connection end is used to be connected with element to be connected；
First cover layer, first cover layer are arranged on a surface of the fixing end, first cover layer with it is described
While being in the first curve corresponding to fixing end；With
Second cover layer, second cover layer are arranged in the fixing end, second cover layer and the described first covering
For film respectively on two opposite surfaces of the fixing end, second cover layer is corresponding with the fixing end while being in
Second curve.
2. golden finger structure according to claim 1, it is characterised in that first curve includes crest and trough, institute
Stating the second curve includes crest and trough, in the projection towards the golden finger body, the crest of first curve and institute
The crest for stating the second curve staggers, and the trough of the trough of first curve and second curve staggers.
3. golden finger structure according to claim 2, it is characterised in that first cover layer is in the golden finger body
On orthographic projection orthographic projection of second cover layer on the golden finger body is completely covered；Or
First cover layer is completely covered in the golden hand in orthographic projection of second cover layer on the golden finger body
Refer to the orthographic projection on body；Or
First cover layer is corresponding with the fixing end while orthographic projection on the golden finger body, and described second
Cover layer is corresponding with the fixing end while the orthographic projection on the golden finger body is intersected；Or
The crest of first curve is relative with the trough interval of second curve, the trough of first curve and described the
The peak separation of two curves is relative.
4. golden finger structure according to claim 1, it is characterised in that the golden finger body includes base material and multiple hands
Refer to, the multiple finger is arranged on opposite two sides of the base material, multiple hands on the base material same side
Refer to spaced setting.
5. golden finger structure according to claim 4, it is characterised in that each finger opens up at the connection end
There is via hole, the position of the via hole of adjacent two finger on the base material same side is different.
6. golden finger structure according to claim 4, it is characterised in that each end of the finger at the connection end
Portion offers semi-circular hole.
7. golden finger structure according to claim 4, it is characterised in that the finger includes copper foil, goldleaf or copper foil table
Face is at least one of gold-plated.
8. golden finger structure according to claim 1, it is characterised in that first cover layer includes bent from described first
The both ends of line are located at institute along from the fixing end to the first enhanced portion of the direction of connection end extension, first enhanced portion
State the both sides of the edge of golden finger body；Or/and
Second cover layer includes prolonging from the both ends of second curve along from the fixing end to the direction of the connection end
The second enhanced portion stretched, second enhanced portion are located at the both sides of the edge of the golden finger body.
9. golden finger structure according to claim 8, it is characterised in that first enhanced portion or/and second increasing
The width in strong portion is more than or equal to 0.2mm.
10. golden finger structure according to claim 1, it is characterised in that the length of the connection end is 0.1mm-3mm.
11. golden finger structure according to claim 1, it is characterised in that first curve is wave, the wave
The cycle of line is 0.5mm-20mm；Or/and
Second curve is wave, and the cycle of the wave is 0.5mm-20mm.
A kind of 12. flexible PCB, it is characterised in that including：
Substrate；With
Golden finger structure described in claim 1-11 any one, the golden finger structure are connected with the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672191.5U CN206948710U (en) | 2017-06-09 | 2017-06-09 | Golden finger structure and flexible PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672191.5U CN206948710U (en) | 2017-06-09 | 2017-06-09 | Golden finger structure and flexible PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206948710U true CN206948710U (en) | 2018-01-30 |
Family
ID=61363946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720672191.5U Active CN206948710U (en) | 2017-06-09 | 2017-06-09 | Golden finger structure and flexible PCB |
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| Country | Link |
|---|---|
| CN (1) | CN206948710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113743307A (en) * | 2021-09-06 | 2021-12-03 | 业泓科技(成都)有限公司 | Nation decides module, fingerprint identification subassembly and electronic equipment |
-
2017
- 2017-06-09 CN CN201720672191.5U patent/CN206948710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113743307A (en) * | 2021-09-06 | 2021-12-03 | 业泓科技(成都)有限公司 | Nation decides module, fingerprint identification subassembly and electronic equipment |
| CN113743307B (en) * | 2021-09-06 | 2023-12-12 | 业泓科技(成都)有限公司 | Bonding module, fingerprint identification component and electronic equipment |
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Effective date of registration: 20210421 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 233 Kangyang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou OFilm Tech. Co.,Ltd. |