CN204189392U - LED surface-mount digital tube - Google Patents
LED surface-mount digital tube Download PDFInfo
- Publication number
- CN204189392U CN204189392U CN201420557221.4U CN201420557221U CN204189392U CN 204189392 U CN204189392 U CN 204189392U CN 201420557221 U CN201420557221 U CN 201420557221U CN 204189392 U CN204189392 U CN 204189392U
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- Prior art keywords
- pcb
- circuit board
- printed circuit
- housing
- light
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229920006375 polyphtalamide Polymers 0.000 description 3
- 239000004954 Polyphthalamide Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model discloses a kind of LED surface-mount digital tube, comprise printed circuit board (PCB), LED chip and shell; Described LED chip is welded on described printed circuit board (PCB) admittedly; Described shell closely engages with described printed circuit board (PCB); Described shell comprises the housing that formed by alternatively non-transparent plastic material and to be formed by light transmissive material and by the integrated light-emitting zone of double-colored or multi-color injection molded and described housing; Described housing is connected with described printed circuit board (PCB); Described light-emitting zone is diffused or focus type lens arrangement; Described light-emitting zone is above described LED chip and and be formed with the spatial accommodation of default size between described printed circuit board (PCB), for holding described LED chip and bonding wire.Above-mentioned LED surface-mount digital tube has the higher and advantage that yields is higher of product quality.
Description
Technical field
The utility model relates to surface-mount digital tube technical field, particularly relates to a kind of LED surface-mount digital tube.
Background technology
Traditional LED (Light Emitting Diode, light emitting diode) housing of surface-mount digital tube forms light-emitting zone by process for filling colloid into, light-emitting zone and housing can not close contact easily have an impact luminous bubble and dim spots well.Although detecting in product preparation process is specification product, in use often occur the phenomenon that housing and light-emitting zone are peeled off, product can not normally be used, and product quality can not get effective guarantee.Further, because the glue amount in process for filling colloid into is not easy precisely to control, not only product appearance has the defect of out-of-flatness, and easily touches bonding wire in encapsulation process and cause bonding wire to come off and the line that collapses, and cannot ensure the reliability of product.Because glue amount cannot precisely control to make the empty avoiding size of light-emitting zone can not realize accurate unification, thus make the luminous intensity of LED surface-mount digital tube and consistance thereof comparatively be difficult to ensure card, product quality is lower and yields is lower.
Utility model content
Based on this, be necessary for the problems referred to above, provide a kind of product quality higher and the LED surface-mount digital tube that yields is higher.
A kind of LED surface-mount digital tube, comprises printed circuit board (PCB), LED chip and shell; Described LED chip is welded on described printed circuit board (PCB) admittedly; Described shell closely engages with described printed circuit board (PCB); Described shell comprises the housing that formed by two or more alternatively non-transparent plastic materials and to be formed by light transmissive material and by the integrated light-emitting zone of multi-color injection molded and described housing; Described housing is connected with described printed circuit board (PCB); Described light-emitting zone is diffused or focus type lens arrangement; Described light-emitting zone is above described LED chip and and be formed with the spatial accommodation of default size between described printed circuit board (PCB), for holding described LED chip and bonding wire.
Wherein in an embodiment, described surface of shell is coated with layer of ink.
Wherein in an embodiment, the thickness of described layer of ink is less than or equal to 1 millimeter.
Wherein in an embodiment, described alternatively non-transparent material is environment friendly plastic rubber material, and described light transmissive material is transparent or semitransparent environmental-protecting material.
Wherein in an embodiment, described shell also comprises reference column, and described reference column is arranged on described housing; Described printed circuit board (PCB) is provided with pilot hole with described reference column corresponding position, and described shell is connected with described printed circuit board (PCB) pressing by described reference column.
Wherein in an embodiment, described reference column is symmetrical or asymmetricly distribute on the housing.
Wherein in an embodiment, described housing comprises ruggedized construction, and described ruggedized construction is positioned at the one side that described housing is connected with described printed circuit board (PCB); Described ruggedized construction and described housing one-body molded.
Wherein in an embodiment, described ruggedized construction is rinforcement bar.
A kind of LED surface-mount digital tube, comprises printed circuit board (PCB), LED chip and shell; Described LED chip is welded on described printed circuit board (PCB) admittedly; Described shell closely engages with described printed circuit board (PCB); Described shell comprises the housing that formed by a kind of alternatively non-transparent plastic material and to be formed by light transmissive material and by double-shot moulding and the integrated light-emitting zone of described housing; Described housing is connected with described printed circuit board (PCB); Described light-emitting zone is diffused or focus type lens arrangement; Described light-emitting zone is above described LED chip and and be formed with the spatial accommodation of default size between described printed circuit board (PCB), for holding described LED chip and bonding wire.
The shell of above-mentioned LED surface-mount digital tube comprises the housing that formed by alternatively non-transparent plastic material and to be formed by light transmissive material and by double-colored or multi-color injection molded light-emitting zone integrated with housing, housing and light-emitting zone can be closely as one, thus make in use not easily to occur that housing and light-emitting zone peel off the phenomenon come off, effectively can ensure the product quality of LED surface-mount digital tube.Further, the specifications size precisely unification of light-emitting zone, very well in conjunction with luminous intensity and the consistance of LED chip control LED surface-mount digital tube, can improve the quality of finished of LED surface-mount digital tube.In addition, because the size of light-emitting zone is precisely controlled, make to be formed between light-emitting zone and printed circuit board (PCB) to preset the spatial accommodation of size, there will not be light-emitting zone to touch bonding wire and cause bonding wire to come off or the situation of the line that collapses, improve product quality and yields further.
Accompanying drawing explanation
Fig. 1 is the vertical view of the LED surface-mount digital tube in an embodiment;
Fig. 2 be embodiment illustrated in fig. 1 in the front view of LED surface-mount digital tube;
Fig. 3 be embodiment illustrated in fig. 1 in the side view of LED surface-mount digital tube;
Fig. 4 be embodiment illustrated in fig. 1 in LED surface-mount digital tube along the cut-open view of A-A ＇ line.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.First-selected embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, the object of these embodiments is provided to be make to disclosure of the present utility model more thoroughly comprehensively.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
A kind of LED surface-mount digital tube, comprises printed circuit board (PCB), LED chip and shell.LED chip is welded on printed circuit board (PCB) admittedly.Shell closely engages with printed circuit board (PCB).Wherein, shell comprises the housing that formed by two or more alternatively non-transparent plastic materials and to be formed by light transmissive material and by multi-color injection molded light-emitting zone integrated with housing.Housing is connected with printed circuit board (PCB).Light-emitting zone is diffused or focus type lens arrangement, and and is formed with the spatial accommodation of default size between printed circuit board (PCB), for holding LED chip and bonding wire above LED chip.
The shell of above-mentioned LED surface-mount digital tube comprises the housing that formed by alternatively non-transparent plastic material and to be formed by light transmissive material and by multi-color injection molded light-emitting zone integrated with housing, housing and light-emitting zone can be closely as one, thus housing and light-emitting zone peel off the phenomenon come off to make LED surface-mount digital tube in use not easily occur, and be not easy have an impact luminous bubble and dim spot, effectively can ensure the product quality of LED surface-mount digital tube.The specifications size precisely unification of light-emitting zone, very well in conjunction with luminous intensity and the consistance of LED chip control LED surface-mount digital tube, can improve the quality of finished of LED surface-mount digital tube.In addition, because the size of light-emitting zone is precisely controlled, make to be formed between light-emitting zone and printed circuit board (PCB) to preset the spatial accommodation of size, there will not be light-emitting zone to touch bonding wire and cause bonding wire to come off or the situation of the line that collapses, improve product quality and yields further.
Figure 1 shows that the vertical view of the LED surface-mount digital tube in an embodiment; Fig. 2 be embodiment illustrated in fig. 1 in the front view of LED surface-mount digital tube; Fig. 3 be embodiment illustrated in fig. 1 in the side view (left view) of LED surface-mount digital tube, Fig. 4 be embodiment illustrated in fig. 1 in LED surface-mount digital tube along the cut-open view of A-A ＇ line.Below in conjunction with Fig. 1 ~ Fig. 4, the LED surface-mount digital tube in the present embodiment is elaborated.
LED surface-mount digital tube comprises printed circuit board (PCB) (pcb board) 100, LED chip 200 and shell 300.Printed circuit board (PCB) 100 is provided with golden finger 110, for being connected with external circuit.The electrode of LED chip 200 is connected on printed circuit board (PCB) 100 by bonding wire 210.In the present embodiment, the electrode of LED chip 200 is connected on printed circuit board (PCB) 100 by aluminium wire weldering pressure.In other examples, the electrode of LED chip 200 also can be connected on printed circuit board (PCB) 100 by gold ball bonding.Shell 300 closely engages with printed circuit board (PCB) 100.
Shell 300 comprises the housing 310 that formed by two or more alternatively non-transparent plastic materials and to be formed by light transmissive material and by multi-color injection molded light-emitting zone 320 integrated with housing 310.Therefore, housing 310 and light-emitting zone 320 can be closely as one, thus LED surface-mount digital tube is in use not easily occurred, and housing 310 and light-emitting zone 320 peel off the phenomenon come off, and effectively can ensure the product quality of LED surface-mount digital tube.Particularly, housing 310 is the polychrome housings formed by the alternatively non-transparent plastic material of two or more different colours.Therefore, the light tight superficial layer such as black, grey can be formed with on the surface of housing 310, thus make, without the need to carrying out brush ink at surface of shell, can avoid causing the situation of bad order to occur because layer of ink comes off.Meanwhile, saving the black operation of brush can lifting process efficiency greatly, reduces the cost of product.The alternatively non-transparent plastic material that housing 310 adopts is environmental-protecting material, and the light transmissive material that light-emitting zone 320 adopts is then transparent or translucent environmental-protecting material.In the present embodiment, alternatively non-transparent plastic material is the polyphthalamide (Polyphthalamide, PPA) of shades of colour, and light transmissive material is transparent resin.Alternatively non-transparent plastic material and light transmissive material are temperature-resistant material.Particularly, alternatively non-transparent plastic material and light transmissive material all adopt heatproof indeformable material more than 180 DEG C.The surface of housing 310 is coated with layer of ink, and the THICKNESS CONTROL of layer of ink is within 1 millimeter.
Light-emitting zone 320 is corresponding with the LED chip 200 on printed circuit board (PCB) 100, is positioned at the top of LED chip 200, and the light produced for LED chip 200 to form luminous passes through.In the present embodiment, light-emitting zone 320 is diffused or focus type lens arrangement, can ensure the homogeneity of LED surface-mount digital tube bright dipping.Light-emitting zone 320 and housing 310 are by multi-color injection molded one-body molded, make the specifications size precisely unification of light-emitting zone 320, very well in conjunction with luminous intensity and the consistance of LED chip control LED surface-mount digital tube, the quality of finished of LED surface-mount digital tube can be improved.
Maintain preset pitch between light-emitting zone 320 and printed circuit board (PCB) 100, namely can form with printed circuit board (PCB) 100 spatial accommodation presetting size and be used for holding LED chip 200 and bonding wire 210.Because the specification of the light-emitting zone 320 in the present embodiment can precisely be controlled, thus can ensure that the size of the spatial accommodation between light-emitting zone 320 and printed circuit board (PCB) 100 can be guaranteed, can guarantee to there will not be light-emitting zone 320 to touch bonding wire 210 in encapsulation process causes bonding wire 210 to come off or collapse the situation of line, improves product quality and yields further.
Shell 300 also comprises reference column 340.Reference column 340 is arranged on housing 310, and one-body molded with housing 310.Printed circuit board (PCB) 100 is provided with reference column 340 corresponding position the pilot hole 120 matched with reference column 340.In accompanying drawing, pilot hole 120 and reference column 340 assemble all.Shell 300 is connected with printed circuit board (PCB) 100 pressing through the pilot hole 120 on printed circuit board (PCB) 100 by reference column 340.Reference column 340 comprises multiple, and asymmetric distribution is on shell 300.Pilot hole 120 is trapezoidal pilot hole in the present embodiment.The accurate location fit of shell 300 and printed circuit board (PCB) 100 can be realized by the reference column 340 and pilot hole 120 arranging asymmetric distribution.In other enforcement, on the distribution that reference column 340 also can be symmetrical and printed circuit board (PCB) 100.Shell 300 and printed circuit board (PCB) 100 also can adopt and be connected as gummed waits other to be fixedly connected with mode.
By adopting above-mentioned LED surface-mount digital tube, product fraction defective can be reduced to less than 1% by traditional 30%, effectively ensure that quality of finished and the yields of product.In the present embodiment, because light-emitting zone 320 is by multi-color injection molded one-body molded with housing 310, therefore, without the need to forming light-emitting zone 320 by process for filling colloid into, the operation of encapsulating can be saved, make process efficiency large, the generation bubble owing to bringing in encapsulating operation, few problem such as glue or stain can be avoided simultaneously, improve the product quality of LED surface-mount digital tube.
In another embodiment, housing also comprises ruggedized construction.Ruggedized construction is arranged at the one side that housing is connected with printed circuit board (PCB), and one-body molded with housing.Ruggedized construction can improve the withstand voltage ability to bear of LED surface-mount digital tube.In the present embodiment, ruggedized construction is rinforcement bar, and its size can be determined according to the physical size of LED surface-mount digital tube.
In other examples, the shell of LED surface-mount digital tube comprises the housing that formed by a kind of alternatively non-transparent plastic material and to be formed by light transmissive material and by double-shot moulding and the integrated light-emitting zone of housing.In the present embodiment, the housing of formation is monochromatic housing.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a LED surface-mount digital tube, comprises printed circuit board (PCB), LED chip and shell; Described LED chip is welded on described printed circuit board (PCB) admittedly; Described shell closely engages with described printed circuit board (PCB); It is characterized in that, described shell comprises the housing that formed by two or more alternatively non-transparent plastic materials and to be formed by light transmissive material and by the integrated light-emitting zone of multi-color injection molded and described housing; Described housing is connected with described printed circuit board (PCB); Described light-emitting zone is diffused or focus type lens arrangement; Described light-emitting zone is above described LED chip and and be formed with the spatial accommodation of default size between described printed circuit board (PCB), for holding described LED chip and bonding wire.
2. LED surface-mount digital tube according to claim 1, is characterized in that, described surface of shell is coated with layer of ink.
3. LED surface-mount digital tube according to claim 2, is characterized in that, the thickness of described layer of ink is less than or equal to 1 millimeter.
4. LED surface-mount digital tube according to claim 1, is characterized in that, described alternatively non-transparent plastic material is environmental-protecting material, and described light transmissive material is transparent or semitransparent environmental-protecting material.
5. LED surface-mount digital tube according to claim 1, is characterized in that, described shell also comprises reference column, and described reference column is arranged on described housing; Described printed circuit board (PCB) is provided with pilot hole with described reference column corresponding position, and described shell is connected with described printed circuit board (PCB) pressing by described reference column.
6. LED surface-mount digital tube according to claim 5, is characterized in that, described reference column is symmetrical or asymmetricly distribute on the housing.
7. LED surface-mount digital tube according to claim 1, is characterized in that, described housing comprises ruggedized construction, and described ruggedized construction is positioned at the one side that described housing is connected with described printed circuit board (PCB); Described ruggedized construction and described housing one-body molded.
8. LED surface-mount digital tube according to claim 7, is characterized in that, described ruggedized construction is rinforcement bar.
9. a LED surface-mount digital tube, comprises printed circuit board (PCB), LED chip and shell; Described LED chip is welded on described printed circuit board (PCB) admittedly; Described shell closely engages with described printed circuit board (PCB); It is characterized in that, described shell comprises the housing that formed by a kind of alternatively non-transparent plastic material and to be formed by light transmissive material and by double-shot moulding and the integrated light-emitting zone of described housing; Described housing is connected with described printed circuit board (PCB); Described light-emitting zone is diffused or focus type lens arrangement; Described light-emitting zone is above described LED chip and and be formed with the spatial accommodation of default size between described printed circuit board (PCB), for holding described LED chip and bonding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557221.4U CN204189392U (en) | 2014-09-25 | 2014-09-25 | LED surface-mount digital tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557221.4U CN204189392U (en) | 2014-09-25 | 2014-09-25 | LED surface-mount digital tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189392U true CN204189392U (en) | 2015-03-04 |
Family
ID=52621371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557221.4U Expired - Lifetime CN204189392U (en) | 2014-09-25 | 2014-09-25 | LED surface-mount digital tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189392U (en) |
-
2014
- 2014-09-25 CN CN201420557221.4U patent/CN204189392U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, Guangdong, Shenzhen, Baoan District Fuyong Street West Ring Road, Chongqing Road south of the Han Dynasty laser Fuyong Industrial Park, building six, four floor, five floor Patentee after: GYX OPTOELECTRONICS CO.,LTD. Address before: 518000, Guangdong, Shenzhen, Baoan District Fuyong Street West Ring Road, Chongqing Road south of the Han Dynasty laser Fuyong Industrial Park, building six, four floor, five floor Patentee before: Shenzhen Guoyexing Optoelectronics Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20150304 |