CN206742237U - A kind of SMD PCB type LED structures - Google Patents

Abstract

The utility model discloses a kind of SMD PCB type LED structures, including LED element（1）And PCB（2）, the LED element includes shell pedestal（101）, LED heat sinks（102）, emitting LED chip（103）, gold thread（104）And pin（105）, the LED heat portion of avaling is provided with annulus sealed groove（113）, annulus sealed groove is interior to be provided with sealing ring（114）, shell pedestal sinks to be adapted with LED heat to be connected, and LED heat is heavy to be provided with emitting LED chip, and emitting LED chip is provided with phosphor powder layer（106）, shell pedestal is equipped with pin, and the polarity of emitting LED chip is connected to pin by gold thread, and packaging silicon rubber layer is additionally provided with the outside of phosphor powder layer（107）, packaging silicon rubber layer outside is provided with optical lens（108）, for LED element in PCB, the PCB back side is additionally provided with layers of two-sided or adsorption magnet（3）.The utility model uses SMD PCB type LED structures, reasonable in design, can prevent vapor from entering and ensure that the service life of emitting LED chip.

Description

A kind of SMD PCB type LED structures

Technical field

It the utility model is related to LED technology field, and in particular to a kind of SMD PCB type LED structures.

Background technology

As its name suggests, SMD LED are surface labeling LED, also referred to as paster LED, are a kind of semiconductors of solid-state Device, electricity directly can be converted into light, reach luminous effect.SMD LED are mainly used in illuminator, decoration, electronics and set The fields such as standby indicator, backlight, display and apparatus.Existing SMD PCB types LED structure design is unreasonable.At present, lampshade base Plate is made of iron mostly, and PCB is substantially bolted either riveting with lampshade substrate and fixes or be welded and fixed, Fixed form is relatively complicated, it is necessary to the lampshade substrate one being fixed together with PCB especially when LED element is damaged Rise and change, replacement operation is troublesome and cost is higher；In addition, LED lamp extensive use in life lighting, but bathroom, kitchen, Basement vapor is larger, and existing LED structure can not prevent that vapor from entering, and causes emitting LED chip to be damaged, Wu Fabao Demonstrate,prove its service life.Therefore, a kind of SMD PCB type LED junctions reasonable in design are sought and constitute correlative technology field people The problem of the urgent need to resolve of member.

The content of the invention

Problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of reasonable in design and energy The SMD PCB type LED structures for enough preventing vapor from entering, ensure that the service life of emitting LED chip.

Technical scheme is used by it solves technical problem：A kind of SMD PCB type LED structures, it include LED element and PCB, the LED element include heavy shell pedestal, LED heat, emitting LED chip, gold thread and pin, the LED heat and sunk Bottom is provided with annulus sealed groove, and sealing ring is provided with the annulus sealed groove, and the shell pedestal sinks with LED heat to be adapted Connection, the LED heat is heavy to be provided with emitting LED chip, and the emitting LED chip is provided with phosphor powder layer, the shell pedestal The pin is equipped with, the polarity of the emitting LED chip is connected to pin by gold thread, is additionally provided with the outside of the phosphor powder layer Packaging silicon rubber layer, the packaging silicon rubber layer outside are provided with optical lens, and the LED element is in PCB, the PCB Circuit back is additionally provided with layers of two-sided or adsorption magnet.

Preferably, the LED heat is heavy is additionally provided with die bond glue-line between emitting LED chip, and the die bond glue-line is used Sunk in emitting LED chip to be fixed on to LED heat, the die bond bondline thickness is 1-3mm.

Preferably, stepped throughhole structure is provided with the shell pedestal, and stepped throughhole structure bottom is provided with Female thread structure.

Preferably, the heavy section of the LED heat is convex shape structure, and the heavy top of LED heat is provided with and stepped throughhole The external thread structure that female thread structure in structure one end is adapted.

Preferably, the LED heat sink for copper into.

Preferably, the PCB is aluminium base.

Preferably, the optical lens is hollow semicircle spherical structure.

Preferably, the pin of the LED element is fixed in PCB by conductive rubber.

The beneficial effects of the utility model are：It is reasonable in design using SMD PCB type LED structures, it can prevent water from steaming Gas enters and ensure that the service life of emitting LED chip；The LED heat portion of avaling is provided with annulus sealed groove, annulus sealed groove Interior to be provided with sealing ring, shell pedestal is connected with heavy be adapted of LED heat, and LED heat is heavy to be provided with emitting LED chip, emitting LED chip Phosphor powder layer is provided with, shell pedestal is equipped with pin, and the polarity of emitting LED chip is connected to pin, fluorescent material by gold thread Layer outside is additionally provided with packaging silicon rubber layer, optical lens is provided with the outside of packaging silicon rubber layer, LED element is in PCB, PCB Circuit back is additionally provided with layers of two-sided or adsorption magnet, reasonable in design；The LED heat portion of avaling is provided with annulus sealed groove, Sealing ring is provided with annulus sealed groove, can prevent vapor from entering the phenomenon of damage emitting LED chip in LED element, protect The service life of emitting LED chip is demonstrate,proved；The PCB back side is additionally provided with layers of two-sided or adsorption magnet, can be used for PCB Wiring board carries out bonding attaching with lampshade substrate, is easily installed fixation, when LED element is damaged, it is only necessary to change PCB And LED element, replacement operation is simple and convenient and replacement cost is low；LED heat is heavy to be additionally provided with crystal-bonding adhesive between emitting LED chip Layer, die bond bondline thickness are 1-3mm, and emitting LED chip can be fixed on LED heat and sink by die bond glue-line；Set in shell pedestal There is stepped throughhole structure, and stepped throughhole structure bottom is provided with female thread structure, the heavy section of LED heat is convex shape structure, And LED heat sinks top provided with the external thread structure being adapted with the female thread structure in stepped throughhole structure one end, by interior Helicitic texture and external thread structure are adapted connection, LED heat can be caused heavy and shell pedestal stable connection, and convenient disassembly； It is copper into good heat conductivity, can playing preferable thermolysis that LED heat, which sinks,；PCB is aluminium base, light.

Brief description of the drawings

Fig. 1 is the cross-sectional view of the utility model SMD PCB type LED structures.

Fig. 2 is the utility model SMD PCB types LED structures and lampshade base mounting structure schematic diagram.

In figure：1. LED element, 101. shell pedestals, 102. LED heats sink, 103. emitting LED chips, 104. gold medals Line, 105. pins, 106. phosphor powder layers, 107. packaging silicon rubber layers, 108. optical lenses, 109. die bond glue-lines, 110. Stepped throughhole structure, 111. female thread structures, 112. external thread structures, 113. annulus sealed grooves, 114. sealing rings, 2. PCB, 3. layers of two-sided or adsorption magnet, 4. conductive rubbers, 5. high temperature resistant aluminium foil reflecting layer, 6. lampshade bases Plate.

Embodiment

Explanation that the utility model is further explained with reference to the accompanying drawings and examples.

As shown in Fig. 1~Fig. 2, a kind of SMD PCB type LED structures, it includes LED element 1 and PCB 2, described LED element 1 includes shell pedestal 101, LED heat heavy 102, emitting LED chip 103, gold thread 104 and pin 105, the LED heat Heavy 102 bottoms are provided with annulus sealed groove 113, and sealing ring 114, the shell pedestal are provided with the annulus sealed groove 113 101 are adapted with LED heat heavy 102 and be connecteds, and the LED heat, which sinks, 102 is provided with emitting LED chip 103, the emitting LED chip 103 are provided with phosphor powder layer 106, and the shell pedestal 101 is equipped with the pin 105, the pole of the emitting LED chip 103 Property pin 105 is connected to by gold thread 104, the outside of phosphor powder layer 106 is additionally provided with packaging silicon rubber layer 107, the encapsulation silicon The outside of glue-line 107 is provided with optical lens 108, and the LED element 1 is in PCB 2, and the back side of PCB 2 is also Provided with layers of two-sided or adsorption magnet 3, fixed for PCB 2 to be carried out into Nian Jie attach with lampshade substrate 6.

The LED heat is heavy to be additionally provided with die bond glue-line 109 between 102 and emitting LED chip 103, the die bond glue-line is used for Emitting LED chip is fixed on into LED heat to sink, the thickness of die bond glue-line 109 is 1-3mm.The emitting LED chip 103 selects With 8mil-45mil IR/PD/PT chips.Stepped throughhole structure 110, and stepped throughhole are provided with the shell pedestal 101 The bottom of structure 110 is provided with female thread structure 111.It is convex shape structure that the LED heat, which sinks 102 sections, and heavy 102 tops of LED heat Provided with the external thread structure 112 being adapted with the female thread structure 111 in stepped throughhole structure one end.The LED heat heavy 102 For copper into.The PCB 2 is aluminium base.The optical lens 108 is hollow semicircle spherical structure, and optical lens 108 are made up of epoxide resin material.The pin 105 of the LED element is fixed in PCB 2 by conductive rubber 4.

In order that obtaining, the illumination effect of LED element 1 is more preferable, and luminosity is brighter, the stepped throughhole structure of the shell pedestal 101 110 upper faces are additionally provided with high temperature resistant aluminium foil reflecting layer 5, and the thickness of high temperature resistant aluminium foil reflecting layer 5 is 1-5mm.

The above is example of the present utility model and explanation, but does not mean that the obtainable advantage of the utility model by this Limit, may be excellent to being realized in the simple transformation of structure, and/or some embodiments in every the utility model practice process Wherein one or more of point are in the protection domain of the application.

Claims (8)

1. A kind of 1. SMD PCB type LED structures, it is characterised in that：It includes LED element（1）And PCB（2）, the LED Element（1）Including shell pedestal（101）, LED heat sinks（102）, emitting LED chip（103）, gold thread（104）And pin（105）, The LED heat sinks（102）Bottom is provided with annulus sealed groove（113）, the annulus sealed groove（113）It is interior to be provided with sealing ring （114）, the shell pedestal（101）Sunk with LED heat（102）Connection is adapted, the LED heat sinks（102）It is provided with emitting led Chip（103）, the emitting LED chip（103）It is provided with phosphor powder layer（106）, the shell pedestal（101）It is equipped with described Pin（105）, the emitting LED chip（103）Polarity pass through gold thread（104）It is connected to pin（105）, the phosphor powder layer （106）Outside is additionally provided with packaging silicon rubber layer（107）, the packaging silicon rubber layer（107）Outside is provided with optical lens（108）, it is described LED element（1）Located at PCB（2）On, the PCB（2）The back side is additionally provided with layers of two-sided or adsorption magnet（3）.
2. 2. SMD PCB type LED structures according to claim 1, it is characterised in that：The LED heat sinks（102）With it is luminous LED chip（103）Between be additionally provided with die bond glue-line（109）, the die bond glue-line by emitting LED chip for being fixed on LED heat On heavy, the die bond glue-line（109）Thickness is 1-3mm.
3. 3. SMD PCB type LED structures according to claim 1, it is characterised in that：The shell pedestal（101）Inside it is provided with Stepped throughhole structure（110）, and stepped throughhole structure（110）Bottom is provided with female thread structure（111）.
4. 4. SMD PCB type LED structures according to claim 3, it is characterised in that：The LED heat sinks（102）Section is convex Character form structure, and LED heat sinks（102）Top is provided with and the female thread structure in stepped throughhole structure one end（111）It is adapted External thread structure（112）.
5. 5. SMD PCB type LED structures according to claim 1, it is characterised in that：The LED heat sinks（102）For copper Into.
6. 6. SMD PCB type LED structures according to claim 1, it is characterised in that：The PCB（2）For aluminium base Plate.
7. 7. SMD PCB type LED structures according to claim 1, it is characterised in that：The optical lens（108）To be hollow Semicircle spherical structure.
8. 8. SMD PCB type LED structures according to claim 1, it is characterised in that：The pin of the LED element（105）It is logical Cross conductive rubber（4）It is fixed on PCB（2）On.