CN209169179U - A kind of LED lead frame with water-proof function - Google Patents
A kind of LED lead frame with water-proof function Download PDFInfo
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- CN209169179U CN209169179U CN201920025550.7U CN201920025550U CN209169179U CN 209169179 U CN209169179 U CN 209169179U CN 201920025550 U CN201920025550 U CN 201920025550U CN 209169179 U CN209169179 U CN 209169179U
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- pin
- base portion
- extension
- led
- lead frame
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Abstract
The utility model discloses a kind of LED lead frames with water-proof function, including at least one leadframes unit being formed on lead frame plate, each leadframes unit has a upper surface and a lower surface, on one side of the frame unit, the center position of lateral frame unit is extended with the first pin set, in the another side of the frame unit, the center position of lateral frame unit is extended with second pin group, wherein the first pin set and second pin group are oppositely arranged, first pin set has one or more pins, second pin group also has one or more pins, wherein the pin number of the first pin set and the pin number of second pin group are identical, each pin is provided with waterproof step in marginal position, the ascent direction of the waterproof step be by pin front rearwardly, when encapsulating LED, Encapsulating material fits on waterproof stepped edge, the edge of waterproof step facilitate encapsulating structure in conjunction with LED lead frame it is stronger, be effectively prevented the LED lead frame in the manufacturing process of LED lead frame and be deformed.
Description
Technical field
The utility model provides a kind of packaging part, has good heat dissipation and waterproof performance.
Background technique
Chip carrier of the lead frame as integrated circuit is that one kind is drawn by means of bonding material realization chip internal circuits
The electrical connection of outlet and outer lead forms the key structure part of electric loop.It plays the bridge connected with outer lead
It acts on, requires to be basic material important in electronics and information industry using lead frame in most semiconductor integrated blocks
Material.LED lead frame is then the electrical connection for realizing LED lamp bead internal circuit exit and outer lead.The waterproof performance of LED compared with
Difference, the lead in packaged LED stretch out outside encapsulating structure, if LED meets water accidentally, water may then enter encapsulation along lead
In structure, the performance of LED is influenced.In addition, LED lamp and encapsulating structure will be rigidly attached to lead frame when encapsulation LED lamp
On.But the surface of lead frame be usually it is flat and smooth, be unfavorable for adhering to.
Utility model content
In order to solve the above defects or improvement requirements in the prior art, the utility model devises the new LED of one kind and draws
Wire frame.
The technical solution that the application utility model solves the technical problem is:
The LED lead frame with a kind of water-proof function is constructed, including at least one being formed on lead frame plate
Leadframes unit, each leadframes unit has a upper surface and a lower surface, in the frame unit
The center position of lateral frame unit is extended with the first pin set on one side, in the lateral frame list in the another side of the frame unit
The center position of member is extended with second pin group, wherein the first pin set and second pin group are oppositely arranged, the first pin set tool
There are one or more pins, second pin group also has one or more pins, wherein the pin number of the first pin set and
The pin number of two pin sets is identical.
Specifically, each pin of the first pin set is provided with waterproof step in marginal position, the rising of the waterproof step
Direction be by pin front rearwardly.Preferably, the waterproof step of preceding part is two-stage waterproof step.When encapsulating LED, envelope
Package material fits on waterproof stepped edge, and the edge of waterproof step facilitates encapsulating structure in conjunction with LED lead frame
It is stronger.
Specifically, each pin of second pin group is again provided with waterproof step, the preceding part of pin in marginal position
Edge it is step-like in waterproof, the ascent direction of the waterproof step be by pin front rearwardly.Preferably, preceding part is anti-
Water step is two-stage waterproof step.When encapsulating LED, encapsulating material is fitted on waterproof stepped edge, the side of waterproof step
Edge facilitate encapsulating structure in conjunction with LED lead frame it is stronger.
Further, the first pin set includes pin on first, pin in first, the first lower pin.Wherein, draw on first
Foot has on first pin extension on pin base portion and first, and pin base portion is connected with LED framework on first, pin on first
Extension is connected with pin base portion on first, and pin extension is rendered as pin distal end on first.Pin base portion edge on first
On first the direction of the extension of pin be length direction, i.e. first direction；The second direction vertical with the length direction be
Width direction, wherein pin extension has the first protrusion relative to pin base portion on first in the direction of the width on first,
Therefore, pin extension relative to pin base portion on first has biggish width on first, so that further improving
The stability of LED when packaged.
Preferably, first protrusion is towards the direction of pin in first.
Equally, the first lower pin has a first lower pin base portion and the first lower pin extension, the first lower pin base portion with
LED framework is connected, and the first lower pin extension is connected with the first lower pin base portion, and the first lower pin extension is rendered as pin
Distally.First lower pin base portion is length direction, i.e. first direction along the direction of the extension of the first lower pin；With the length
The vertical second direction in direction is width direction, wherein the first lower pin extension is in the direction of the width relative to drawing under first
Foot base portion has the second protrusion, and therefore, the first lower pin extension has biggish width relative to the first lower pin base portion,
So that further improving the stability of LED when packaged.
Preferably, second protrusion is towards the direction of pin in first.
Preferably, the quantity of pin and the first lower pin is 2 on first.
Further, pin includes pin base portion in first, pin extension in first, leads ends in first in first
Portion.Pin base portion is connected with LED framework in first, and pin extension is connected to draw in pin base portion and first in first in first
Foot portion.Wherein, leads ends portion extends between the first pin set and second pin group, and in the direction of the width in first,
Pin end has bigger width relative to pin base portion in first in i.e. first, thus for illuminator attachment provide compared with
Big depends on plane, improves the reliability of LED encapsulation.
Further, second pin group includes pin on second, pin in second, the second lower pin.Wherein, draw on second
Foot has on second pin extension on pin base portion and second, and pin base portion is connected with LED framework on second, pin on second
Extension is connected with pin base portion on second, and pin extension is rendered as pin distal end on second.Wherein, pin prolongs on second
Extending portion has third protrusion relative to pin base portion on second in the direction of the width, and therefore, pin extension is opposite on second
Pin base portion has biggish width on second, so that further improving the stability of LED when packaged；
Preferably, third protrusion is towards the direction of pin in second；
Equally, the second lower pin has a second lower pin base portion and the second lower pin extension, the second lower pin base portion with
LED framework is connected, and the second lower pin extension is connected with the second lower pin base portion, and the second lower pin extension is rendered as pin
Distally.Second lower pin extension has the 4th protrusion, therefore, second relative to the second lower pin base portion in the direction of the width
Lower pin extension has biggish width relative to the second lower pin base portion, is encapsulating so that further improving LED
When stability；
Preferably, the 4th protrusion is towards the direction of pin in second；
Preferably, the quantity of pin and the second lower pin is 2 on second；
Further, pin includes pin base portion in second, pin extension in second in second, and pin extends in second
The width in portion less than second in pin base portion width.
Detailed description of the invention
Fig. 1 is the LED lead frame top view that the utility model has water-proof function；
Fig. 2 is one leadframes unit top view of the utility model；
Fig. 3 is the cross-sectional view in the direction A-A in Fig. 2；
Pin on 1.1- first, lower pins of pin, 1.3- first in 1.2- first, pin, 2.2- second on 2.1- second
Pin base portion on the lower pin of middle pin, 2.3- second, 1.11- first, pin extension on 1.12- first draw in 1.21- first
Pin extension in foot base portion, 1.22- first, pin end in 1.23- first, the lower pin base portions of 1.31- first, 1.32- the
Once pin extension, pin base portion on 2.11- second, pin extension on 2.12- second, pin base portion in 2.21- second,
The lower pin base portion of pin extension, 2.31- second, 2.32- second lower pin extension, 3- waterproof step in 2.22- second.
Wherein, the unit of size is millimeter in Figure of description.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.In the description of the LED lead frame of the utility model, it is to be understood that
The terms such as "front", "rear", "upper", "lower" are merely for convenience of description the utility model, rather than indicate signified device or member
Part must have a particular orientation, therefore should not be understood as limiting the present invention.
As shown in Figure 1, 2, 3, the application constructs a kind of LED lead frame with water-proof function, and construction has a kind of anti-
The LED lead frame of water function, including at least one leadframes unit being formed on lead frame plate, each lead
Frame unit has a upper surface and a lower surface, in the center side of the lateral frame unit in one side of the frame unit
To the first pin set is extended with, in the another side of the frame unit, the center position of lateral frame unit is extended with second and draws
Foot group, wherein the first pin set and second pin group are oppositely arranged, the first pin set has one or more pins, second pin
Group also has one or more pins, wherein the pin number of the first pin set is identical with the pin number of second pin group.
Specifically, each pin of the first pin set is provided with waterproof step in marginal position, the rising of the waterproof step
Direction be by pin front rearwardly.Preferably, the waterproof step of preceding part is two-stage waterproof step.When encapsulating LED, envelope
Package material fits on waterproof stepped edge, and the edge of waterproof step facilitates encapsulating structure in conjunction with LED lead frame
It is stronger.
Specifically, each pin of second pin group is again provided with waterproof step, the preceding part of pin in marginal position
Edge it is step-like in waterproof, the ascent direction of the waterproof step be by pin front rearwardly.Preferably, preceding part is anti-
Water step is two-stage waterproof step.When encapsulating LED, encapsulating material is fitted on waterproof stepped edge, the side of waterproof step
Edge facilitate encapsulating structure in conjunction with LED lead frame it is stronger.
Further, the first pin set includes pin 1.1 on first, pin 1.2 in first, the first lower pin 1.3.Its
In, pin 1.1 has on first pin extension 1.12 on pin base portion 1.11 and first, pin base portion on first on first
1.11 are connected with LED framework, and pin extension 1.12 is connected with pin base portion 1.11 on first on first, and pin prolongs on first
Extending portion 1.12 is rendered as pin distal end.Pin base portion 1.11 is length along the direction of the extension of pin 1.1 on first on first
Spend direction, i.e. first direction；The second direction vertical with the length direction is width direction, wherein pin extension on first
1.12 have the first protrusion, therefore, pin extension on first relative to pin base portion 1.11 on first in the direction of the width
1.12 have biggish width relative to pin base portion 1.11 on first, so that further improving LED when packaged
Stability.
Preferably, first protrusion is towards the direction of pin 1.2 in first.
Equally, the first lower pin 1.3 has the first lower pin base portion 1.31 and a first lower pin extension 1.32, under first
Pin base portion 1.31 is connected with LED framework, and the first lower pin extension 1.32 is connected with the first lower pin base portion 1.31, and first
Lower pin extension 1.32 is rendered as pin distal end.First extension that pin base portion 1.31 descends pin 1.3 along first down
Direction is length direction, i.e. first direction；The second direction vertical with the length direction is width direction, wherein is drawn under first
Foot extension 1.32 relative to the first lower pin base portion 1.31 there is the second protrusion therefore to draw under first in the direction of the width
Foot extension 1.32 has biggish width relative to the first lower pin base portion 1.31, exists so that further improving LED
Stability when encapsulation.
Preferably, second protrusion is towards the direction of pin 1.2 in first.
Preferably, the quantity of pin 1.1 and the first lower pin 1.3 is 2 on first.
Further, pin 1.2 includes pin extension 1.22 in pin base portion 1.21, first in first, the in first
1.2 end of pin in one.Pin base portion 1.21 is connected with LED framework in first, and pin extension 1.22 is connected in first
1.2 end of pin in pin base portion 1.21 and first in one.Wherein, 1.2 end of pin is located at the first pin set and in first
Between two pin sets, and extend in the direction of the width, i.e., 1.2 end of pin has relative to pin base portion 1.21 in first in first
Have bigger width, thus for illuminator attachment provide it is biggish depend on plane, improve LED encapsulation reliability.
Further, second pin group includes pin 2.1 on second, pin 2.2 in second, the second lower pin 2.3.Its
In, pin 2.1 has on second pin extension 2.12 on pin base portion 2.11 and second, pin base portion on second on second
2.11 are connected with LED framework, and pin extension 2.12 is connected with pin base portion 2.11 on second on second, and pin prolongs on second
Extending portion 2.12 is rendered as pin distal end.Wherein, on second pin extension 2.12 in the direction of the width relative to pin on second
Base portion 2.11 has third protrusion, and therefore, pin extension 2.12 has relative to pin base portion 2.11 on second on second
Biggish width, so that further improving the stability of LED when packaged；
Preferably, third protrusion is towards the direction of pin 2.2 in second；
Equally, the second lower pin 2.3 has the second lower pin base portion 2.31 and a second lower pin extension 2.32, under second
Pin base portion 2.31 is connected with LED framework, and the second lower pin extension 2.32 is connected with the second lower pin base portion 2.31, and second
Lower pin extension 2.32 is rendered as pin distal end.Second lower pin extension 2.32 is in the direction of the width relative to drawing under second
Foot base portion 2.31 has the 4th protrusion, and therefore, the second lower pin extension 2.32 has relative to the second lower pin base portion 2.31
There is biggish width, so that further improving the stability of LED when packaged；
Preferably, the 4th protrusion is towards the direction of pin 2.2 in second；
Preferably, the quantity of pin 2.1 and the second lower pin 2.3 is 2 on second；
Further, pin 2.2 includes pin extension 2.22 in pin base portion 2.21, second in second in second, the
In two the width of pin extension 2.22 less than second in pin base portion 2.21 width.
In this way, so can make in this way pin with compact structure and have biggish surface area it is available,
Be conducive to the encapsulation of LED illuminator.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model can have various changes, combination and variation.It is all the utility model spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should be included in the utility model scope of the claims it
It is interior.
Claims (6)
1. a kind of LED lead frame with water-proof function, it is characterised in that: including being formed on lead frame plate at least
One leadframes unit, each leadframes unit has a upper surface and a lower surface, in the frame list
The center position of the lateral frame unit in one side of member is extended with the first pin set, in the lateral frame in the another side of the frame unit
The center position of frame unit is extended with second pin group, wherein the first pin set and second pin group are oppositely arranged, the first pin
Group has one or more pins, and second pin group also has one or more pins, wherein the pin number of the first pin set
Identical with the pin number of second pin group, each pin of the first pin set is provided with waterproof step in marginal position, described
Waterproof step ascent direction be by pin front rearwardly；Each pin of second pin group is equally set in marginal position
Be equipped with waterproof step, the edge of the preceding part of pin is step-like in waterproof, the ascent direction of the waterproof step be by pin just
Towards the back side.
2. the LED lead frame according to claim 1 with water-proof function, which is characterized in that first pin
Group includes pin on first, pin in first, the first lower pin, wherein pin has on first pin base portion and the on first
Pin extension on one, pin base portion is connected with LED framework on first, pin base portion phase on pin extension and first on first
Even, and on first pin extension is rendered as pin distal end, on first pin base portion along the extension of pin on first side
To for length direction, i.e. first direction, the second direction vertical with the length direction is width direction, wherein pin on first
Extension has the first protrusion relative to pin base portion on first in the direction of the width；Second pin group includes drawing on second
Foot, pin in second, the second lower pin, wherein pin has on second pin extension on pin base portion and second on second,
Pin base portion is connected with LED framework on second, and pin extension is connected with pin base portion on second on second, and pin on second
Extension is rendered as pin distal end.
3. the LED lead frame according to claim 1 with water-proof function, which is characterized in that the first lower pin has
First lower pin base portion and the first lower pin extension, the first lower pin base portion are connected with LED framework, the first lower pin extension
It is connected with the first lower pin base portion, and the first lower pin extension is rendered as pin distal end, the first lower pin base portion is along first
The direction of the extension of lower pin is length direction, i.e. first direction；The second direction vertical with the length direction is width side
To, wherein the first lower pin extension has the second protrusion relative to the first lower pin base portion in the direction of the width；Under second
Pin has the second lower pin base portion and the second lower pin extension, and the second lower pin base portion is connected with LED framework, draws under second
Foot extension is connected with the second lower pin base portion, and the second lower pin extension is rendered as pin distal end, and the second lower pin extends
Portion has the 4th protrusion relative to the second lower pin base portion in the direction of the width.
4. the LED lead frame according to claim 2 or 3 with water-proof function, which is characterized in that the first protrusion,
Second protrusion, third protrusion and the 4th protrusion are prominent towards the center of leadframes unit.
5. the LED lead frame according to claim 1 with water-proof function, which is characterized in that pin and on first
Once the quantity of pin is 2.
6. the LED lead frame according to claim 1 with water-proof function, which is characterized in that pin and on second
The quantity of two lower pins is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025550.7U CN209169179U (en) | 2019-01-08 | 2019-01-08 | A kind of LED lead frame with water-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025550.7U CN209169179U (en) | 2019-01-08 | 2019-01-08 | A kind of LED lead frame with water-proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169179U true CN209169179U (en) | 2019-07-26 |
Family
ID=67328191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920025550.7U Active CN209169179U (en) | 2019-01-08 | 2019-01-08 | A kind of LED lead frame with water-proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209169179U (en) |
-
2019
- 2019-01-08 CN CN201920025550.7U patent/CN209169179U/en active Active
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