CN208460326U - Have a down dip LED element of the shell with care-supporting - Google Patents

Abstract

The utility model provides three kinds of technical solutions, it is the double foot LED element of backing run having a down dip with care-supporting respectively, single foot LED element is welded in the single foot LED element of backing run having a down dip with care-supporting and the side having a down dip with care-supporting, its component part includes the shell with light cup, multiple pins, at least one LED wafer and conducting wire, LED wafer connect respectively with pin one end by conducting wire and is installed in light cup together, bending pin is in double or single leg outside shell and forms welding plane respectively, make between the light emitting end surface of LED wafer and welding plane in the angle α that has a down dip, α is greater than 0 ° less than 90 °.Tilt angled down is formed between the light emitting end surface for making LED wafer and the welding plane of pin composition the utility model has the beneficial effects that realizing, and structure is simple, is easy to use current common processes batch micro operations.The shell having a down dip is equipped with care-supporting, and outer leg of skimming is protected to be not easy to touch curved and the leg after welding is made to be not readily separated shell.

Description

Have a down dip LED element of the shell with care-supporting

Technical field

The utility model relates to a kind of structure of LED element more particularly to a kind of LED members that has a down dip of shell setting care-supporting Part structure.

Background technique

The light emitting end surface of chip is (i.e. using LED wafer largest light intensity direction as the flat of normal in LED element used at present Face) with the welding plane of its pin or (can regard angle as is 0 °) parallel to each other or orthogonal (i.e. angle is 90 °). It is learnt by the light distribution curve (i.e. curve of light distribution figure) of LED element, 0 ° of direction (i.e. normal of light emitting end surface of distribution curve flux Direction) on relative light intensity it is maximum.Above-mentioned two classes LED element is welded respectively when display screen, the normal direction one of light emitting end surface As all in horizontal direction.Since display screen is loaded on eminence more, when people look up viewing, finding relative light intensity is not maximum.Cause This, LED element light emitting end surface is had a down dip, and can make full use of the largest light intensity of LED element, and raising fills pinnacled LED and shows The brightness perception of screen saves electric energy.

105761624 A of Chinese patent document CN discloses " a kind of LED element with angle, LED light bar and display Screen ", Fig. 1 and Fig. 2 are the schematic diagrames of the two schemes of its LED element structure that has a down dip.Referring to Fig. 1, one scheme main feature It is the back side that welding plane is located at the shell (not shown go out), double pin exposed is in shell and in the LED wafer having a down dip The left and right sides, all pins except close to chip folding line it is parallel with light emitting end surface in addition to, other folding lines and light emitting end surface At the angle that has a down dip.But the LED element that this pin is sideling bent is difficult with current common processes batch micro operations, or manufacture Higher cost.Referring to fig. 2, another scheme is mainly characterized by the same side that pin 13 exposes to shell 11, and it is curved to be close to shell It is converted into single leg and forms welding plane outside the side housing of light cup 19.Therefore the disadvantage is that, when side, leg is welded in When pcb board 16, if LED element meets with the external force towards light rim of a cup direction accidentally, pin 13 expose to housing parts be easy to Shell separation, to influence the tilt angled down of LED element, keeps the tilt angled down of the LED element on display screen inconsistent.

Chinese patent document CN 202363042 discloses " structure improved LED display and its LED light ", and Fig. 3 is it The schematic diagram of the LED element that has a down dip structure.It referring to Fig. 3, is mainly characterized by, pin (conductive feet) 2121 is respectively from the shell that has a down dip The two sides up and down of (insulating base) 211 are stretched out, and are close to be written into double leg in shell bending and in the back of light cup (lampshade) 22 respectively Face-piece forms welding plane in vitro, and pin two sides above and below shell are exposed more；The wall of cup height of light cup (lampshade) 22, upper lateral part Divide and is significantly less than lower portion.The LED element having a down dip is mainly used for outdoor display screen, refers to Fig. 4, shows when it is welded in open air When the PCB plate 13 of display screen, it usually needs by pcb board 13 and thereon the exposed metal portions of all elements with silica gel 14 cover simultaneously Mask 15 is loaded into waterproof, moisture-proof, since LED element thickness is limited and mask 15 needs certain thickness to maintain intensity, The pin exposed portion size of LED element cannot be too big, too big that layer of silica gel can be forced too thick and be difficult to install mask.Therefore, it asks Referring to Fig. 3, the LED element the disadvantage is that, pin is exposed too many on shell, is welded and is difficult to when pcb board with there is thickness to limit Silica gel masking, should not be used in outdoor display screen；Skimming in pin need to bend that space is larger, limit the choosing of LED element tilt angled down Select range；The inconsistent reflection for being also unfavorable for LED lamplight has a down dip above and below the wall of cup height of light cup；And this structure design LED element is also difficult with current common processes batch micro operations or manufacturing cost is higher.

Therefore, the structure for the LED element that has a down dip designs and manufactures, and still has many areas for improvement.

Utility model content

The technical problems to be solved in the utility model is, Curve guide impeller to increase the range of choice of LED element tilt angled down, The pin exposed part for the LED element that has a down dip is reduced to be easy to cover using silica gel, and how to make the pin for being close to shell bending It is not easy to separate with shell after being welded, and is easy to use current common processes batch micro operations.

In order to solve the above-mentioned technical problem, there is provided a kind of band care-supportings to have a down dip for first technical solution of the utility model The double foot LED element of backing run, component part includes the shell with light cup, multiple pins, at least one LED wafer and leads Line, LED wafer connect respectively with pin one end by conducting wire and are installed in light cup together, also, bending pin is another respectively End is arranged inside housings along the two sides up and down for the shell that has a down dip to reduce and expose to shell respectively, and upside pin is carried on the back from by near light cup The upside of face-piece body is stretched out, and is close to be written into leg in shell bending, and downside pin is stretched out from the downside for being close to light cup back housing, Bending is outer to be written into leg, and upper and lower two sides leg is in double foot outside the back housing of light cup and forms welding plane；LED wafer In the angle α that has a down dip between light emitting end surface and welding plane, α is greater than 0 ° less than 90 °；Shell at left and right sides of the leg of downside is equipped with Care-supporting；The wall of cup height of light cup is consistent.

Preferably, the edge has a down dip the part pin that the two sides up and down of shell are arranged respectively inside housings, upper lateral part Divide length identical as lower portion or its upper portion length and lower portion not identical.

Second technical solution of the utility model there is provided a kind of single foot LED element of backing run having a down dip with care-supporting, Its component part includes the shell with light cup, multiple pins, at least one LED wafer and conducting wire, and LED chip is by conducting wire point It does not connect and is installed in light cup together with pin one end, also, the bending pin other end exists along the downside for the shell that has a down dip respectively Enclosure interior arrangement exposes to shell to reduce, and stretches out respectively from the downside for being close to light cup back housing, and bending is outer to be written into weldering Foot is in single foot outside the back housing of light cup and forms welding plane；It is between the light emitting end surface and welding plane of LED wafer Have a down dip angle α, and α is greater than 0 ° less than 90 °；Shell at left and right sides of leg is equipped with care-supporting；The wall of cup height of light cup is consistent.

There is provided a kind of sides having a down dip with care-supporting to weld single foot LED element for the third technical solution of the utility model, Its component part includes the shell with light cup, multiple pins, at least one LED wafer and conducting wire, and LED chip is by conducting wire point It does not connect and is installed in light cup together with pin one end, also, the pin other end stretches out from the same side of shell be close to respectively Shell is bent into single leg and forms welding plane outside the side housing of light cup；The light emitting end surface of LED wafer (3) and welding It is made an angle alpha between plane, α is greater than 0 ° less than 90 °；The shell of light cup side close to welding plane is equipped with care-supporting；The cup of light cup Wall height is consistent.

It has a down dip, is improved by its group the beneficial effects of the utility model are: the LED element that has a down dip realizes largest light intensity angle At the perception brightness for filling pinnacled display screen, to improve the energy-saving effect of display screen.Three kinds provided by the utility model The organization plan for the LED element that has a down dip realizes under being formed between the light emitting end surface for making LED wafer and the welding plane of pin composition Degree of tilt, and structure is simple, is easy to use current common processes batch micro operations；The outer pin skimmed of care-supporting protection of shell setting It is not easy to touch curved and is not easy to separate with shell after making the pin for being close to shell be welded.In the double foot scheme of backing run and the single foot of backing run In scheme, part pin arrange inside housings it is exposed to reduce, be easy using have thickness limit silica gel masking pin exposed Part；The design skimmed outside the pin of downside increases the range of choice of LED element tilt angled down.

Detailed description of the invention

Fig. 1 is a kind of LED element structural schematic diagram that has a down dip of backing run of background technique or so double foot；

Fig. 2 is the LED element structural schematic diagram that has a down dip that single foot is welded in a kind of side of background technique；

Fig. 3 is a kind of LED element structural schematic diagram that has a down dip of the double foot of backing run of background technique or more；

Fig. 4 is the scheme of installation in the utility model embodiment 1 outdoors display screen；

Fig. 5 is the structural schematic diagram (stereoscopic schematic diagram) of the utility model embodiment 1；

Fig. 6 is the structural schematic diagram (schematic cross-section) of the utility model embodiment 1；

Fig. 7 is the realization step 1-4 schematic diagram of the utility model embodiment 1；

Fig. 8 is the realization step 5-7 schematic diagram of the utility model embodiment 1；

Fig. 9 is the structural schematic diagram (stereoscopic schematic diagram) of the utility model embodiment 2；

Figure 10 is the structural schematic diagram (schematic cross-section) of the utility model embodiment 2；

Figure 11 is the structural schematic diagram (stereoscopic schematic diagram) of the utility model embodiment 3；

Figure 12 is the structural schematic diagram (schematic cross-section) of the utility model embodiment 3.

Attached drawing main mark explanation (is suitable for the utility model embodiment)

1- light cup；2- shell；3-LED chip；4- pin one end；The 5- pin other end；Pin on the upside of 6-；7- Upside leg；Pin on the downside of 8-；Leg on the downside of 9-；10- welding plane；11- light emitting end surface；12- care-supporting；13-PCB Plate；14- silica gel；15- mask.

Specific embodiment

To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and it is as follows to cooperate attached drawing to explain.It should infuse Meaning, following embodiment are not intended to limit the utility model.The protection scope of the utility model is defined with claims Subject to the maximum magnitude of inventive features.

It note that term " center ", "upper", "lower", "left", "right", "vertical", " water in the description of the present invention, It is flat ", "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, merely to just In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Embodiment 1

Fig. 5 and Fig. 6 is respectively the stereoscopic schematic diagram and Section A-A schematic diagram of the structure of embodiment 1.Refer to Fig. 5 and figure 6, embodiment 1 is a kind of double foot LED element of backing run that shell has a down dip with care-supporting, and component part includes light cup 1, shell 2, six A pin, three LED wafers 3 and conducting wire, light cup 1 are set on shell and have a down dip, and LED wafer 3 is installed on pin one end 4, borrows Assistant director of a film or play's line connect with pin one end 4 respectively and is installed in light cup 1 together.The pin other end 5 up and down is bent respectively.Upside pin 6 arrange inside housings as far as possible along the upside for the shell that has a down dip, and when connecing near light cup back housing, stretch out shell upwards, are close to shell It is skimmed in body bending, the leg 7 on the upside of formation outside the back housing of light cup 1.Downside pin 8 is along the downside for the shell that has a down dip as far as possible in shell Internal portion's arrangement extends downwardly shell when arriving at light cup back housing, outer slash is bent, in the back housing shape of light cup 1 At downside leg 9.The part that pin is arranged respectively up and down inside housings, upper portion length are identical as lower portion.Under The LED element inclined is mainly used for outdoor display screen, and Fig. 4 is the scheme of installation in embodiment 1 outdoors display screen, refers to Fig. 4, when embodiment 1 is welded when the PCB plate of outdoor display screen, it usually needs by the exposed of pcb board 13 and all elements thereon Metal part silica gel 14 covers and loads onto mask 15 with waterproof, moisture-proof, since 1 thickness of embodiment is limited and mask 15 needs Certain thickness maintains intensity, and therefore, 1 pin exposed portion size of embodiment cannot be too big, too it is big layer of silica gel can be forced too thick and It is difficult to that mask is installed.The pin of embodiment 1 is arranged inside housings as far as possible, exactly in order to reduce pin exposed in shell, for example, Make exposed parts 6 less than 1 millimeter.Embodiment 1 designs in this way, is easy using the silica gel masking pin exposed portion for having thickness to limit Point, allow the LED element having a down dip for outdoor display screen.It is welded continuing with downside referring to figs. 5 and 6, is written into outside the bending pins of downside Foot 9, the lower edge for the shell that makes to have a down dip as far as possible close to the pcb board being welded, the beneficial effect is that, in upside, pin exposed is size-constrained Under the conditions of, increase the range of choice of LED element tilt angled down.The back housing of upside leg 7 and downside leg 9 in light cup 1 Outside it is in double foot and forms welding plane 10, makes to be in the angle α that has a down dip between the light emitting end surface 11 of LED wafer 3 and welding plane 10, α is greater than 0 ° less than 90 °.When biggish display screen need to use multiple batches of, large number of LED element, needing will be large number of LED element in certain brightness range is mixed, and is known as " frying lamp " in the industry, so that the LED display being made from it is on the whole Brightness capability is uniform.When " frying lamp ", the downside leg 9 of outer slash is easy to be touched curved.Therefore, the shell of 9 left and right sides of downside leg Be equipped with close to leg length care-supporting 12, with protect leg be not easy to touch it is curved.12 bottom of care-supporting is close to without contacting downside leg 9 The welding plane 10 at place is welded in pcb board to guarantee that leg can be pasted reliably, for example, the gap between care-supporting 12 and welding plane It can be set to a quarter or so of leg thickness.

The wall of cup height of light cup 1 is consistent, is conducive to LED lamplight reflection and has a down dip.

Fig. 7 and Fig. 8 is a kind of realization step schematic diagram of the current common processes of the application of embodiment 1.Refer to Fig. 7 and figure 8,1 element of the present embodiment is illustrated only in figure, there are multiple 1 elements of embodiment together by step on sheet metal in actual production Operation.

Step 1: it cuts out, cuts out pin on sheet metal, the present embodiment 1 is six pins, i.e., three pairs of pins in this step, Left and right does not disconnect；

Step 2: stretching, the platform of stretched fixed LED wafer, i.e. die bond platform, platform and following vertical bending part Pin will arrange inside housings；

Step 3: disconnected foot respectively disconnects three pairs of pins or so；

Step 4: injection molding, the plastic casing injection molded with light cup make in part pin implantation shell；

Step 5: cutting cuts the pin on left and right side and the adhesion end of sheet metal, at this time between shell and sheet metal still by Some metallic projections (respectively there are two metallic projections close to the upper and lower side of shell for sheet metal) adhesions without falling down；

Step 6: left side pin is close to shell bending by bending 1；

Step 7: bending 2 draws the left side by left and right side pin simultaneously to bend with the intracorporal die bond platform of shell in α angle It skims in foot, skimmed outside the pin of the right, (the i.e. LED wafer in this way, welding plane and LED wafer fixed pan that left and right pin is constituted Light emitting end surface) shape is at angle α；

Step 8: die bond, routing, encapsulating, demoulding respectively consolidate the LED wafer of red, green, blue three different luminescent colors The light emitting end surface of chip is kept when the die bond platform of pin, die bond, and parallel with the fixed platform of chip (this is industry base This technology)；The positive and negative electrode of chip is welded on corresponding pin with conducting wire respectively again；Sealing is perfused in light cup；Point The adhesion of shrinking away from theshell body and sheet metal demoulds finished product.

Fig. 6 is referred to, the part pin 5 arranged respectively inside housings along the two sides up and down of shell that have a down dip, upper lateral part Divide length identical as lower portion.Embodiment 1 is further designed, upper portion length can not also phase with lower portion Together, for example, its upper portion length is longer than lower portion.Its upper portion and lower portion length are suitably matched, can be increased The range of choice of LED element tilt angled down.

Embodiment 2

Fig. 9 and Figure 10 is respectively the stereoscopic schematic diagram and Section A-A schematic diagram of the structure of embodiment 2.Refer to Fig. 9 and figure 10, embodiment 2 is a kind of single foot LED element of backing run that shell has a down dip with care-supporting, component part include light cup 1, shell 2, Four pins, three LED wafers 3 and conducting wire, light cup 1 are set on shell and have a down dip, and LED wafer 3 is installed on pin one end 4, It connect and is installed in light cup 1 together with pin one end 4 respectively by conducting wire.The pin other end 5 is bent respectively, along the shell that has a down dip Downside arrange inside housings as far as possible, when arriving at light cup back housing, extend downwardly shell, bend it is outer skim, in light cup 1 Downside leg 9 is formed outside back housing.Similar to Example 1, pin is arranged inside housings as far as possible, is to reduce outside pin It is exposed to shell, is easy to allow the LED element having a down dip to show for outdoor using the silica gel masking pin exposed part for having thickness to limit Display screen.Downside leg 9 is written into outside the bending pins of downside, the lower edge for the shell that makes to have a down dip increases as far as possible close to the pcb board being welded The range of choice of LED element tilt angled down.Continuing with referring to Fig. 9 and Figure 10, downside leg 9 is in outside the back housing of light cup 1 Single foot simultaneously forms welding plane 10, makes in the angle α that has a down dip between the light emitting end surface 11 of LED chip 3 and welding plane 10, α is big In 0 ° less than 90 °.When biggish display screen need to use multiple batches of, large number of LED element, need to will it is large number of centainly LED element in brightness range is mixed, and is known as " frying lamp " in the industry, so that the LED display being made from it brightness on the whole Ability is uniform.When " frying lamp ", the downside leg 9 of outer slash is easy to be touched curved.Therefore, it is set on the shell of 9 left and right sides of downside leg Have the care-supporting 12 close to leg length, with protect leg be not easy to touch it is curved.12 bottom of care-supporting is close to without contacting 9 place of downside leg Welding plane 10, pcb board is welded in guarantee that leg can be pasted reliably, for example, the gap between care-supporting 12 and welding plane can be with It is set as a quarter or so of leg thickness.

The wall of cup height of light cup 1 is consistent, is conducive to LED lamplight reflection and has a down dip.

Realization step (technical process) similar embodiment 1 of embodiment 2.

Embodiment 3

Figure 11 and Figure 12 is respectively the stereoscopic schematic diagram and Section A-A schematic diagram of the structure of embodiment 3.1 He referring to Figure 1 Figure 12, embodiment 3 are a kind of single foot LED elements of side weldering that shell has a down dip with care-supporting, and component part includes light cup 1, shell 2, six pins, three LED wafers 3 and conducting wire, light cup 1 are set on shell and have a down dip, and LED wafer 3 is installed on pin one end 4, it connect and is installed in light cup 1 together with pin one end 4 respectively by conducting wire.The pin other end is respectively from the same side of shell Face stretches out abutting shell and is bent into single upside leg 7 and forms welding plane 10 outside the side housing of light cup 1, keeps LED brilliant In the angle α that has a down dip between the light emitting end surface 11 and welding plane 10 of piece 3, α is greater than 0 ° less than 90 °.Light cup rim of a cup shell is close to weldering It connects 10 side of plane and is equipped with the care-supporting 12 approached without contact weld plane, approaching without contact weld plane is to guarantee to weld Foot can be pasted reliably and be welded in pcb board, for example, the gap between care-supporting 12 and welding plane can be set to a quarter of leg thickness Left and right.When leg 7 is welded in pcb board on the upside of side, if LED element meets with the external force towards light rim of a cup direction, care-supporting accidentally 12 make upside leg 7 be not easy to separate with shell, to keep the tilt angled down of LED element, make the LED element on display screen Tilt angled down is consistent.

The wall of cup height of light cup 1 is consistent, is conducive to LED lamplight reflection and has a down dip.

Realization step (technical process) similar embodiment 1 of embodiment 3.

Claims (4)

1. a kind of have a down dip LED element of shell with care-supporting, component part include the shell (2) with light cup (1), multiple pins, At least one LED wafer (3) and conducting wire, LED wafer (3) connect respectively with pin one end (4) by conducting wire and are installed on together In light cup (1), it is characterised in that: bend the pin other end (5) respectively and distinguish inside housings along the two sides up and down for the shell that has a down dip Arrangement exposes to shell to reduce, and upside pin (6) is stretched out from the upside by near light cup back housing, is close to skim in shell bending At upside leg (7), downside pin (8) is stretched out from the downside for being close to light cup back housing, and bending is outer to be written into downside leg (9), Upside leg (7) and downside leg (9) are in double foot outside the back housing of light cup (1) and form welding plane (10)；LED is brilliant In the angle α that has a down dip between the light emitting end surface (11) and welding plane (10) of piece (3), α is greater than 0 ° less than 90 °；Downside leg (9) is left The shell of right two sides is equipped with care-supporting (12)；The wall of cup height of light cup (1) is consistent.

2. have a down dip LED element of the shell as described in claim 1 with care-supporting, it is characterised in that: the edge has a down dip the upper of shell What lower two sides were arranged respectively inside housings is in part pin parallel to each other, and upper portion length is identical as lower portion, Or its upper portion length and lower portion it is not identical.

3. a kind of have a down dip LED element of shell with care-supporting, component part include the shell (2) with light cup (1), multiple pins, At least one LED wafer (3) and conducting wire, LED wafer (3) connect respectively with pin one end (4) by conducting wire and are installed on together In light cup (1), it is characterised in that: bend the pin other end (5) respectively and arranged inside housings along the downside for the shell that has a down dip to subtract Shell is exposed to less, and is stretched out respectively from the downside for being close to light cup back housing, and bending is outer to be written into downside leg (9), in light cup (1) it is in single foot and forms welding plane (10) outside back housing；The light emitting end surface (11) and welding plane of LED wafer (3) (10) in the angle α that has a down dip between, α is greater than 0 ° less than 90 °；Shell at left and right sides of downside leg (9) is equipped with care-supporting (12)；Light The wall of cup height of cup (1) is consistent.

4. a kind of have a down dip LED element of shell with care-supporting, component part include the shell (2) with light cup (1), multiple pins, At least one LED wafer (3) and conducting wire, LED wafer (3) connect respectively with pin one end (4) by conducting wire and are installed on together In light cup (1), it is characterised in that: the pin other end stretches out abutting shell from the same side of shell respectively and is bent into single upside weldering Foot (7) simultaneously forms welding plane (10) outside the side housing of light cup (1)；The light emitting end surface (11) of LED wafer (3) and welding are flat Face makes an angle alpha between (10), and α is greater than 0 ° less than 90 °；The shell of light cup (1) side close to welding plane is equipped with care-supporting (12)； The wall of cup height of light cup (1) is consistent.