CN202561540U

CN202561540U - Light-emitting diode (LED) waterproof flexible lamp belt

Info

Publication number: CN202561540U
Application number: CN2012201072959U
Authority: CN
Inventors: 陈晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-11-28
Anticipated expiration: 2022-03-21

Abstract

The utility model discloses a light-emitting diode (LED) waterproof flexible lamp belt and aims at providing the LED waterproof flexible lamp belt which is attractive in appearance, high in brightness and good in waterproof property and safety. The lamp belt comprises a printed circuit board (PCB), wherein an LED is arranged on the PCB. The lamp belt is further composed of a plastic protective sleeve and plastic waterproof plugs, wherein the plastic protective sleeve is used for sleeving the PCB, and the plastic waterproof plugs are molded on two ends of the plastic protective sleeve in an ejecting mode. The LED waterproof flexible lamp belt can be applied to LED lamp belts.

Description

A kind of LED water proof flexible lamp band

Technical field

The utility model relates to LED lamp band, especially relates to a kind of LED water proof flexible lamp band.

Background technology

In the prior art like lighting engineering lampion band on the market; Most for neon big gun, miniature bulb, light emitting diode directly are connected into luminous zone, luminous zone seals as protecting with glue, is that 201020115044.6 Chinese patent has disclosed a kind of flexible light band like application number; Comprise LED encapsulation unit and PCB circuit board; The LED encapsulation unit is encapsulated on the PCB circuit board, and wherein, the surface that said PCB circuit board is installed on the LED encapsulation unit is provided with fluid sealant.Its basic structure is that light emitting diode (LED) or LED paster and current-limiting resistance connection in series-parallel are welded on the FPC, carries out the glue protection at the lamp belt surface then, is shaped to the luminous zone of flat type pipe again with soft transparent engineering materials such as PVC with plastic cement pipe machine.In its manufacture craft,, and then carry out extrusion with extruder because of the corresponding position point gluing of need on led chip seals; At the peripheral extrusion one plastic cement protective sleeve of lamp band, flow chart is loaded down with trivial details, simultaneously; Because of in operation process, using glue sealing, glue can produce xanthochromia in use for some time because of molecule changes, and influences the product appearance effect; Reduce the brightness of lamp band, cause product to occur losing efficacy, therefore can not satisfy product requirement of using steady in a long-term.

The utility model content

The utility model adopts glue sealing in order to solve prior art lamp band; Glue can produce xanthochromia in use for some time because of molecule changes; Influence the product appearance effect, reduce the brightness of lamp band, cause product to occur losing efficacy; Therefore can not satisfy the technical problem of product requirement of using steady in a long-term, a kind of LED water proof flexible lamp band is provided.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is a kind of LED water proof flexible lamp band of design; Comprise pcb board; Said pcb board is provided with LED, and said LED water proof flexible lamp band also comprises plastic cement protective sleeve that entangles said pcb board and the plastic cement waterproof plug that is injected and molded in plastic cement protective sleeve two ends.

Two madial walls of said plastic cement protective sleeve are provided with outstanding fixture block inwardly, and said pcb board is positioned between the bottom surface of said fixture block and plastic cement protective sleeve.

The utility model entangles pcb board through adopting the plastic cement protective sleeve, and forms plastic cement waterproof plug in the injection mo(u)lding of the two ends of plastic cement protective sleeve, thereby need not use glue to come the components and parts on the pcb board are protected; Need not come the lamp band carried out glue sealing end to end through glue yet; But adopt injection molding process fully, improved production efficient greatly, simultaneously owing to can not cause using flavescence after a period of time because of glue; Improved the product appearance effect; Promoted product brightness, guaranteed reliability, the security of product operation in the environment that water, humidity are arranged, can realize producing in batches flexible light band with flexibility, waterproof.

Description of drawings

Below in conjunction with embodiment and accompanying drawing the utility model is elaborated, wherein:

Fig. 1 is the structural representation of the utility model LED water proof flexible lamp band;

Fig. 2 is the structural representation after the pcb board of the utility model LED water proof flexible lamp band is installed LED and resistance;

Fig. 3 is that the pcb board of the utility model LED water proof flexible lamp band is placed in the structural representation in the plastic cement protective sleeve;

Fig. 4 is the structural representation after terminals are gone up in the pcb board connection of the utility model LED water proof flexible lamp band;

Fig. 5 is the preparation method flow chart of the utility model LED water proof flexible lamp band;

Fig. 6 is the preparation method one specific embodiment flow chart of the utility model LED water proof flexible lamp band.

The specific embodiment

See also Fig. 1 to Fig. 4.The utility model LED water proof flexible lamp band comprises pcb board 1, plastic cement protective sleeve 2 and plastic cement waterproof plug 3.Wherein:

Pcb board 1 is provided with LED11, resistance 12 and is located at the terminals 13 of pcb board 1 end.Pcb board 1 inserts in the plastic cement protective sleeve.

Plastic cement protective sleeve 2 entangles said pcb board 1.Insert the pcb board in the plastic cement protective sleeve for ease of the location, be provided with outstanding fixture block 21 inwardly at two madial walls of plastic cement protective sleeve, said pcb board is positioned in the draw-in groove of formation between the bottom surface 22 of said fixture block 21 and plastic cement protective sleeve.

Plastic cement waterproof plug 3 is injected and molded in plastic cement protective sleeve two ends, the effect of playing sealing plastic cement protective sleeve two ends and being connected with external power source.

Please in the lump referring to Fig. 5 and Fig. 6.The preparation method of the utility model LED water proof flexible lamp band comprises the following steps:

The first step, the pcb board that LED will be installed are placed in the plastic cement protective sleeve, and the structure that pcb board is placed in the plastic cement protective sleeve is as shown in Figure 3.

Before the first step, can also comprise the following steps:

Thaw: the tin cream that will be used to weld thaws;

Paster: LED and resistance are pasted into the corresponding position of pcb board; Structure behind the paster is as shown in Figure 2;

Reflow Soldering: pcb board packed into carry out Reflow Soldering in the reflow machine;

Bonding wire connects: the LED light belt of wall scroll is linked together;

Second the step, hold terminals in the connection end to end at pcb board; The structure that connects behind the terminals is as shown in Figure 4.

The 3rd the step, at plastic cement protective sleeve two ends injection mo(u)lding plastic cement waterproof plug.

Utilize board moulding lamp to take the lead the plastic cement waterproof plug of tail, the flexible light band injection machine of packing into is utilized mould one-shot forming plastic cement waterproof plug end to end.

The manufacture craft flow process of this specific embodiment LED water proof flexible lamp band is: the tin cream that at first will be used to the weld stirring of thawing; Again tin cream is brushed in the steel mesh; Again resistance and LED lamp are pasted in the pcb board, and whether inspection paster direction and material be correct, put it into after examine is qualified and cross Reflow Soldering in the reflow machine; Reflow Soldering reexamines whether failure welding is arranged after accomplishing; Problems such as colour-difference are just carried out wall scroll bonding wire and many connections (the LED light belt of wall scroll is linked together) once more after the passed examination, connection is tested after accomplishing.Carry out burn-in test after the test passes, after burn-in test is accomplished, PCB is packed in the plastic cement protective sleeve, fixedly pcb board of draw-in groove is arranged, terminals in the welding end to end of pcb board in the plastic cement protective sleeve.Aforementioned flow process is carried out visual examination after accomplishing again, and does energising and light test; Last to be testedly the lamp band put into injection machine after qualified and utilize mould to accomplish plastic cement waterproof plug shaping work is carried out in the rear and front end.

The utility model is owing to directly with the flexible light band plastic cement protective sleeve of packing into, promptly utilize the plastic cement protective sleeve that flexible light band is protected, and the two ends straight forming of flexible light band goes out plastic cement waterproof plug, realizes safe and reliable water resistance.The maximum difference of the technology of this technology and existing LED lamp band is:

Make LED water proof lamp band at present in the industry; All be to penetrate in the PVC sleeve pipe with PCBA (installing the pcb board of electronic devices and components such as LED and resistance); Be injected in the sleeve pipe with glue again; Let glue wrap PCBA fully, and then take the lead tail at the LED lamp and be inserted in a joint, apply one deck glue and fixedly realize waterproof.These methods are to add glue by sleeve pipe, realize waterproof through glue sealing end to end.Also have a kind of manufacture craft in addition, it is directly PCBA to be penetrated the PVC sleeve pipe, in sleeve pipe, does not inject glue, is inserted in a joint and directly take the lead tail at lamp, applies one deck glue and fixedly realizes waterproof.These methods are to lean on sleeve pipe, realize waterproof through glue sealing end to end, and its real waterproof effect is not ideal.The more important thing is that above-mentioned two kinds of methods all need be used glue, glue can produce xanthochromia in use for some time because of molecule changes; Influence the product appearance effect; Reduce the brightness of lamp band, cause product to occur losing efficacy, therefore can not satisfy product requirement of using steady in a long-term.And the utility model new technology production program has been simplified original flexible light band processing technology thereof; Promptly need in the PVC sleeve pipe, not add glue comes PCBA is protected; Also need not come the lamp carries product is carried out glue sealing end to end through glue; But adopt board and mould-forming process fully, and improved production efficient greatly, promoted product brightness simultaneously; Guaranteed reliability, the security of product operation in the environment that water, humidity are arranged, can realize producing in batches the demand of flexible light band with flexibility, waterproof.

The utlity model has following advantage:

1, save cost: the utility model flexible light band manufacture craft has reduced last glue flow chart, has significantly reduced the number of working processes, has saved the product operating cost, has promoted the competitiveness of product in market.

2, product environmental protection more: the utility model flexible light band manufacture craft, without glue product is sealed, reduced in operation process because of using pollution and the destruction of glue environment.Simultaneously,, do not contain chemical substances such as glue because of flexible light band, can not cause secondary pollution and destruction environment when product lost efficacy when scrapping because of reaching lifetime limitation.

3, promote product brightness: combine the light transmission characteristic of led light source, increase glue on the LED surface and cover, can cause the loss of light in transport process, cause product brightness to reduce.The utility model flexible light band manufacture craft; Directly PCB is packed in the plastic cement protective sleeve, can effectively protect PCB and led light source, simultaneously; Because lacked of the influence of external agencys such as glue to light output; Can be by a relatively large margin the loss of minimizing light in transport process, thereby guarantee that product has brightness preferably, promote product competitiveness.

4, prolong life of product: because of glue contains chemical substance, through after a while after, its performance can change, and glue produces the xanthochromia phenomenon, shortening product service life.The utility model flexible light band manufacture craft is directly packed PCB in the plastic cement protective sleeve into, through the sealing of injection moulding plug, does not adopt glue to protect end to end, can avoid product to produce the problem of xanthochromia, can significantly improve for life of product.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. a LED water proof flexible lamp band comprises pcb board, and said pcb board is provided with LED, it is characterized in that: said LED water proof flexible lamp band also comprises plastic cement protective sleeve that entangles said pcb board and the plastic cement waterproof plug that is injected and molded in plastic cement protective sleeve two ends.

2. LED water proof flexible lamp band according to claim 1 is characterized in that: two madial walls of said plastic cement protective sleeve are provided with outstanding fixture block inwardly, and said pcb board is positioned between the bottom surface of said fixture block and plastic cement protective sleeve.