CN203322807U - Water-proof LED (light-emitting diode) lamp - Google Patents

Abstract

The utility model discloses a water-proof LED (light-emitting diode) lamp. A shell of the water-proof LED lamp comprises a cylindrical light-transmitting body and end covers at two ends, ventilating holes are formed in the end covers, when the lamp is packaged, electronic moisture-proof adhesive is firstly brushed on the surface of an LED lamp panel, then sealant is poured between the end covers and the light-transmitting body, gas volatilized during the solidification process of the sealant is gradually discharged outwards from the ventilating holes in the end covers, at the moment, sealant is filled in the ventilating holes which are then sealed by sealing bodies, and after the sealant in the ventilating holes is completely solidified, the ventilating holes can be sealed. By adopting the water-proof LED lamp, the shell cracking problem during the using process of the water-proof LED lamp can be effectively solved, and the water-proof level can be remarkably improved.

Description

A kind of waterproof LED lamp

Technical field

The utility model relates to a kind of light fixture, especially relates to a kind of LED light fixture with water-proof function.

Background technology

At present, the LED light fixture with good energy-saving effect starts progressively to promote, and the LED light fixture generally includes the LED lamp plate, is arranged on the heat sink at the LED lamp plate back side, in order to the drain pan of mounted LED lamp plate and heat sink and be located at the printing opacity cover cap on drain pan.When the LED light fixture need to be installed to humidity or fish jar etc. while having in the environment of water, need to possess corresponding classification of waterproof, at present, conventional way is that waterproof coating is set on LED lamp plate surface, in the junction of diffuser lid and bottom shell, sealing ring is set simultaneously.

For example, a kind of disclosed on Chinese patent literature " waterproof LED lamp strip ", notification number is CN202302956U, includes the some LED luminescence units that are arranged on circuit base plate, at described circuit base plate and LED luminescence unit surface coverage, watertight composition is arranged, described watertight composition is the Parylene rete.This LED lamp bar has good insulation, waterproof and dustproof, corrosion resistance.Yet the sealing method can only play basic moisture-proof role to the LED lamp plate, can't carry out whole sealing to housing, so its classification of waterproof is not high.

Another kind of disclosed on Chinese patent literature " the LED light fixture of waterproof ", publication No. is CN102086983A, and it comprises a radiator, and a LED lighting module is to be fixed on this radiator; One connecting ring is surrounded on the periphery of this LED lighting module, and its end face is formed with a junction; One diffuser is fixed on the connecting portion of this connecting ring, and this LED lighting module cover is established; Reach an electrical connector and be fixed on this radiator, and be electrically connected to this LED lighting module.By the setting of this connecting ring, make this diffuser be able to effectively airtight this LED lighting module, infiltrate aqueous vapor to prevent light fixture.Because need to making by the structure of trip bolt one class diffuser usually, this type of encapsulating method compresses the connecting ring (being sealing ring) for sealing, therefore cause the complexity of its structure, particularly, there is certain interval between its two adjacent screws, therefore, laminate pressure between housing and connecting ring is inhomogeneous, and between screw, the pressure at interval is less, thereby is difficult to adapt to the occasion that has higher level to require to waterproof.

Certainly, the people is also arranged by applying fluid sealant to reach the effect of sealing between drain pan and printing opacity cover cap, yet, there are the following problems to adopt sealant sealing on the LED of existing strip light fixture: at first, due to the edge coating fluid sealant that need to close at diffuser lid and bottom shell joint, and the printing opacity cover cap is screwed on drain pan in edge again, therefore need the length of coating fluid sealant long, be difficult to guarantee that the coating of fluid sealant on whole sealing strips puts in place and uniformity, thereby very easily stay the hidden danger of leaking; Secondly, existing printing opacity cover cap generally all adopts the PC plastics to make, it has higher intensity and light transmission preferably, but, after adopting sealant sealing, the gas that fluid sealant volatilizes can fill in whole housing, and the printing opacity cover cap easily brings out its internal stress afterwards in the effect of the effect that is subject to above-mentioned escaping gas and screw, thereby cracking occurs.At present, one of countermeasure that people take is by changing repeatedly the different trades mark and different types of fluid sealant, observes its cracking situation after encapsulation a period of time, to select suitable fluid sealant again.Although, by selecting suitable fluid sealant can improve to a certain extent the problem of Cracking of printing opacity cover cap, but can't fundamentally effectively address this problem.

The utility model content

The utility model is in order to overcome the existing problem that the existing classification of waterproof of strip-shaped LED lamp tool is low, housing easily ftractures with water-proof function, a kind of waterproof LED lamp is provided, can effectively solve the problem of housing cracking, and improve significantly its classification of waterproof.

To achieve these goals, the utility model is by the following technical solutions: a kind of waterproof LED lamp, comprise housing, be arranged on LED lamp plate and heat sink in housing, described housing comprises the printing opacity body of a tubular and the shutoff end cap at printing opacity body two ends, between end cap and printing opacity body, by fluid sealant, be fixedly connected with, described end cap is provided with air-vent, is provided with seal in air-vent.

At first housing of the present utility model consists of the printing opacity body of tubular and the end cap at two ends, like this, can avoid adopting screw to connect, and greatly reduce the seal length of whole housing, thereby be conducive to improve reliability and the sealing grade of sealing, and significantly reduce the use amount of fluid sealant, and and then reduce the generation of fluid sealant escaping gas in housing, avoid the escaping gas that produces because of fluid sealant to produce cracking to the effect of printing opacity body.Particularly, the utility model is provided with air-vent on the end cap at two ends, like this, after between end cap and printing opacity body, filling fluid sealant is fixedly connected with, a small amount of escaping gas that fluid sealant produces also can be released by air-vent, and after the volatilization through after a while, the escaping gas in housing is proud to be discharged fully, thereby effectively solve the problem of Cracking of housing, now with seal, the air-vent sealing can be realized to the sealing fully of whole housing again.Because air-vent is for discharging escaping gas, so its aperture is less, can adopt seal combination seal glue easily by its sealing.

As preferably, described printing opacity body comprises a straight diapire and the major arc post jamb be connected with the diapire dual-side, two inboards at the major arc post jamb are provided with axial arranged card article, and the both sides of described heat sink are provided with the draw-in groove with the card article adaptation, the bottom surface of heat sink and diapire laminating.

Straight diapire is conducive to the installation location of light fixture, and the bottom surface of heat sink and diapire laminating are conducive to the heat of LED lamp plate by heat sink and the outside Quick diffusing of housing.

Certainly, above-mentioned preferred version also can adopt following scheme to substitute, described printing opacity body is cylindrical, both sides at printing opacity body medial surface are provided with axial arranged card article, described heat sink is semi-cylindrical shaped, comprise the assembly wall of mounted LED lamp plate and the heat radiation wall of semicircle column type, the heat radiation wall of heat sink and the laminating of the inwall of printing opacity body, be connected with the reinforcement sheet between the assembly wall of heat sink and heat radiation wall.

Columnar printing opacity body be convenient to processing and manufacturing and and the cooperation of end cap, make it there is higher anti-pressure ability, and the heat radiation wall of heat sink upper semi-circle column type can increase the fitting area with the printing opacity body simultaneously, thereby be conducive to improve radiating rate.

As the further optimization to above-mentioned replacement scheme, the lateral wall at described printing opacity body two ends is provided with the screw-shaped groove, and the madial wall of described end cap is provided with corresponding screw-shaped raised line, and described raised line fits in groove, and there is gap between raised line and groove, be perfused with fluid sealant in gap.

Light fixture is after the use through the long period, and tiny crack may appear in curing fluid sealant, thereby affects its sealing property.Owing to forming a kind of threaded engagement between raised line and groove, and there is gap between raised line and groove, therefore, be poured in the structure that forms a kind of similar bellows after the sealing glue solidifying in gap, like this, after the use through the long period, even curing fluid sealant occurs that crack can not extending axially along housing yet, and only can extend along circumferencial direction, therefore can not affect the sealing property of fluid sealant, thereby can extend significantly the service life of light fixture.In addition, also can avoid the axial play between end cap and printing opacity body, be conducive to the reliability of sealing.

As the further optimization to above-mentioned replacement scheme, described heat sink two ends are respectively equipped with dog screw in the axial location of corresponding printing opacity body, the bottom surface of end cap is provided with positioning stud, and dog screw forms and is threaded with positioning stud, and pitch and the rotation direction of dog screw and raised line are identical.

Like this, when end cap is installed, pass through rotary end cover, can make end cap be positioned on dog screw by positioning stud, and the pitch of dog screw and raised line and rotation direction equate, therefore, the raised line of end cap can synchronously be screwed in the groove of printing opacity body, when the shape of cross section of raised line and groove is similar shape, can guarantee between raised line and groove to have uniform gap, thereby the fluid sealant that makes to be poured in gap has uniform thickness, has both facilitated the perfusion of fluid sealant, be conducive to again improve the reliability of sealing.

As preferably, described air-vent is positioned on the end face of end cap, air-vent is by the counterbore of the rounding taper type of outer end and be arranged on the counterbore bottom surface and form with the elongated hole be communicated with in housing, and the inner face of described seal is provided with cavity, between seal and air-vent, by fluid sealant, is fixedly connected with.

In order to reduce the generation that seals rear escaping gas and to enter into enclosure interior as far as possible, air-vent on the utility model end cap is by the counterbore of the rounding taper type of outer end and be arranged on the counterbore bottom surface and form with the elongated hole be communicated with in housing, like this, the aperture of the elongated hole directly be communicated with enclosure interior can arrange littlely, thereby its fluid sealant consumption for sealing is few, correspondingly, the escaping gas produced is also extremely micro-, thereby can't produce substantial impact to housing, also be convenient to the sealing to air-vent simultaneously, be conducive to improve the integral sealing grade of light fixture.And can form interference fit between the counterbore of seal and rounding taper type, and be conducive to its positiver sealing and fixing, can pour into fluid sealant in the cavity arranged on the inner face of seal, thereby prevent axial the becoming flexible of seal.When lamp installation arrives under water, the pressure that is subject to water can press counterbore more, makes it to have good water resistance.

As preferably, the edge of opening of described end cap is provided with sealing ring, sealing ring has an annular slot, the edge of opening of end cap is connected in annular slot, the lateral wall of printing opacity body is provided with a sealing cone at corresponding sealing ring place, the medial surface of sealing ring taper and sealing cone laminating, the end cap sidewall is being provided with fill orifice near opening part.

When end cap screws the end at the printing opacity body, sealing ring fits tightly on sealing cone, thereby make to be sealed between the openend of end cap and this holder of printing opacity, like this, when we pour into fluid sealant from fill orifice, fluid sealant is subject to not stopping of sealing ring and can overflows outward, thereby can guarantee that the perfusion of fluid sealant puts in place.

Therefore, the utility model can solve waterproof LED lamp housing problem of Cracking in use effectively, and improves significantly its classification of waterproof.

The accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is a kind of cross sectional representation of the present utility model.

Fig. 3 is another kind of cross sectional representation of the present utility model.

Fig. 4 is the axial partial sectional view of the utility model shell end.

Fig. 5 is that housing is placed on the side direction view on constant temperature oven.

Fig. 6 is that housing is placed on the top view on constant temperature oven.

In figure: 1, housing 11, printing opacity body 111, diapire 112, major arc post jamb 113, card article 114, groove 115, sealing cone 12, end cap 121, raised line 122, positioning stud 123, fill orifice 124, air-vent 2, LED lamp plate 3, heat sink, 31, draw-in groove 32, assembly wall 33, heat radiation wall 34, reinforcement sheet 35, dog screw 4, sealing ring 41, annular slot 5, seal 51, groove 6, installing rack 7, gas tube 8, blast pipe 9, constant temperature oven 91, lower baking oven 92, upper baking oven.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model is further described.

In embodiment as shown in Figure 1 and Figure 2, a kind of waterproof LED lamp, comprise housing 1, be arranged on LED lamp plate 2 and heat sink 3 in housing, can apply electronic seal glue on the LED lamp plate, housing wherein comprises the printing opacity body 11 of tubular of a both ends open and the shutoff end cap 12 at printing opacity body two ends, between end cap and printing opacity body, by fluid sealant, be fixedly connected with, the printing opacity body can adopt the PC plastics to make, so that it has enough intensity and higher light transmission.The printing opacity body comprises a straight diapire 111, thereby is conducive to light fixture installation location in use, and the dual-side of diapire dual-side and a major arc post jamb 112 links into an integrated entity, and this major arc post jamb is the post jamb that a major arc stretches vertically and forms.In addition, we also need arrange axial arranged card article 113 in two inboards of major arc post jamb, the both sides of heat sink correspondingly arrange the draw-in groove 31 with the card article adaptation, thereby heat sink can be inserted from an end of printing opacity body, and draw-in groove is connected on card article, thereby heat sink is fixed, and should be guaranteed that the bottom surface of heat sink and diapire fit, so as by the heat of LED lamp plate by heat sink and the outside Quick diffusing of housing.

In order to facilitate processing and manufacturing, we also can make the printing opacity body cylindrical shape as shown in Figure 3, certainly, also need axial arranged card article 113 be set in the both sides of printing opacity body medial surface, correspondingly, 3 of heat sinks are semi-cylindrical shaped, it comprises for the straight assembly wall 32 of mounted LED lamp plate and the heat radiation wall 33 of semicircle column type, as hereinbefore, heat sink can insert from an end of printing opacity body, the heat radiation wall of heat sink and the laminating of the inwall of printing opacity body, the assembly wall of heat sink is by the card article screens of both sides, thereby heat sink is fixed, and also be connected with reinforcement sheet 34 between the assembly wall of heat sink and heat radiation wall, both be conducive to improve the intensity of heat sink, the heat be conducive to again on assembly wall transmits fast to the heat radiation wall.

Further, as shown in Figure 4, we also can arrange screw-shaped groove 114 at the lateral wall at columnar printing opacity body two ends, correspondingly, screw-shaped raised line 121 is set on the madial wall of end cap, thereby end cap can be screwed on the printing opacity body, and raised line now fits in groove, be perfused with fluid sealant between raised line and groove to realize sealing.The cross section of groove can be rectangle, and the cross section of raised line is rectangle equally, and becomes similar fitgures with the cross section of groove, thereby makes to be formed with gap between raised line and groove, and certainly, the fluid sealant between raised line and groove should be poured in gap.Be understandable that, we need to be positioned at end cap the end of printing opacity body reliably, just can guarantee all there is uniform gap between all surface of raised line and groove, for this reason, we can arrange respectively a dog screw 35 in the axial location of heat sink two ends correspondence printing opacity body, a positioning stud 122 is set in the bottom surface of end cap, and pitch and the rotation direction of dog screw and raised line are identical simultaneously, when end cap screws on the printing opacity body, dog screw forms and is threaded with positioning stud.It should be noted that, the external diameter of dog screw should be large as far as possible, like this, between dog screw and positioning stud, can form comparatively closely and be threaded, make end cap the printing opacity body axially and footpath upwards all located reliably.

As shown in Fig. 1, Fig. 4, in order to ensure the perfusion of fluid sealant, put in place, we can arrange at the edge of opening of end cap a sealing ring 4, and sealing ring has an annular slot 41, thereby its cross section is taken the shape of the letter U, and the edge of opening of end cap is connected in annular slot.In addition, the outer diameter that we can make the printing opacity body be provided with the end of screw-like groove is less than the outer diameter of printing opacity body mid portion, thereby formation ladder, and at the printing opacity body, establish between the outer wall of the outer wall of reeded end and mid portion with sealing cone 115 transition, like this, when end cap screws in the printing opacity body end, the sealing ring on end cap just arrives the position of sealing cone, makes the medial surface of sealing ring just fit with sealing cone.Be understandable that, the medial surface of sealing ring should be the taper seat be complementary with sealing cone, thereby can utilize the effect of taper seat that sealing ring and sealing cone are fitted tightly.Further, we also need arrange a fill orifice 123 near opening part at the sidewall of end cap, and like this, when us during from fill orifice perfusion fluid sealant, fluid sealant is subject to not stopping of sealing ring and can overflows outward, thereby can guarantee that the perfusion of fluid sealant puts in place.Certainly, after the careful sealing of perfusion, we can fill in a flexible stopper in fill orifice, to avoid the refluence of fluid sealant.

Further, we also need arrange air-vent 124 on the end face of end cap, seal 5 is set in air-vent, when the perfusion fluid sealant, seal can first not be set in air-vent, like this, at the fluid sealant that has poured into housing one end and while starting to pour into the fluid sealant of the other end, can avoid the perfusion difficulty of fluid sealant not occurring and flowing backwards because housing has venthole.In addition, after the perfusion that completes fluid sealant, we can place a period of time by housing, and like this, the escaping gas produced by fluid sealant in housing can be released by the air-vent on the end cap of two ends.Air-vent is a stepped hole, the counterbore of its taper type of rounding by outer end and be arranged on the counterbore bottom surface and form with the elongated hole be communicated with in housing, and seal profile and counterbore adaptation, cavity 51 is set on the inner face of seal, thereby can increase the elasticity of seal, and when the escaping gas in housing distributes complete need to the sealing air-vent by air-vent, can be in air-vent the drip irrigation fluid sealant, and seal is filled in counterbore, thereby make by fluid sealant, to be fixedly connected with between seal and air-vent.Certainly, we also can be in air-vent direct drip irrigation fluid sealant and, without seal, form sealing after the sealing glue solidifying in air-vent.

Finally, as shown in Figure 1, we can arrange two installing racks 6 on the printing opacity body, and with glue, cohere fixing so that the installation of light fixture is fixed.

The concrete encapsulating method of waterproof LED lamp is as follows:

The first step. first at LED lamp plate external coating electronic dampproof glue, further to improve classification of waterproof, then between end cap and printing opacity body, the perfusion fluid sealant is also placed at least two days, and the air-vent of the gas that fluid sealant volatilizes in solidification process on end cap progressively discharges.Certainly, under the prerequisite of the conditions permits such as production site, standing time can be extended as far as possible, in order to make fluid sealant be volatilized fully and discharge.In addition, we can insert a gas tube air-vent of housing one end, and by gas tube to injecting compressed air in housing, thereby the escaping gas in housing is discharged from the air-vent of the housing other end, so that the escaping gas that housing is created in housing in the put procedure after the careful sealing of perfusion is thoroughly emptying fast.Perhaps, as shown in Figure 5, we also can insert a gas tube 7 air-vent of housing one end, insert a blast pipe 8 in the air-vent of the housing other end, then will pour into the two ends of the housing of fluid sealant heats with a constant temperature oven 9 respectively, this constant temperature oven sidewall arranges through hole, the end cap of housing stretches in constant temperature oven through through hole, thereby housing is shelved on the constant temperature oven at two ends, gas tube and blast pipe should pass from the sidewall of constant temperature oven respectively, like this, in the housing put procedure, we can be by gas tube to injecting compressed air in housing, thereby the escaping gas in housing is discharged from the blast pipe of the housing other end.For the ease of the processing of constant temperature oven and the placement of housing, constant temperature oven can be made into the cube structure of splicing up and down, upper baking oven 92 docking of its lower baking oven 91 by upper opening and lower openings form, and at one group of relative edge of opening of lower baking oven, semicircle orifice is set respectively, and corresponding edge of opening arranges respectively semicircle orifice on upper baking oven, like this, as shown in Figure 6, the shell end of having poured into fluid sealant can first be shelved in the semicircle orifice of lower baking oven one lateral edges, gas tube or blast pipe are shelved in the semicircle orifice of a relative lateral edges, when upper and lower baking oven is docking integrally, the semicircle orifice of upper and lower baking oven splices conglobate through hole, make end and the gas tube of housing, the blast pipe screens is in through hole,

Second one. drip irrigation fluid sealant in air-vent, and with a seal, air-vent is sealed, wait the fluid sealant in air-vent fully curing, air-vent can be sealed.

Due to housing of the present utility model, without adopting screw to connect, and the escaping gas that fluid sealant produces can be released by air-vent, thereby can effectively solve the problem of Cracking of housing.It should be noted that, need to arrange through wires hole on the end cap of housing one side, can pass through wires hole in order to connect the wire of power supply, and be electrically connected to the LED lamp plate, wire and through wires hole junction can arrange corresponding sealing sheath, and the concern sealant sealing, above-mentioned steps can be used as one independently operation before seal casinghousing, complete so that the escaping gas of fluid sealant can distribute fully.

Claims (7)

1. a waterproof LED lamp, comprise housing, be arranged on LED lamp plate and heat sink in housing, it is characterized in that, described housing comprises the printing opacity body of a tubular and the end cap that is set in printing opacity body two ends, between end cap and printing opacity body, by fluid sealant, be fixedly connected with, described end cap is provided with air-vent, is provided with seal in air-vent.

2. a kind of waterproof LED lamp according to claim 1, it is characterized in that, described printing opacity body comprises a straight diapire and the major arc post jamb be connected with the diapire dual-side, two inboards at the major arc post jamb are provided with axial arranged card article, the both sides of described heat sink are provided with the draw-in groove with the card article adaptation, the bottom surface of heat sink and diapire laminating.

3. a kind of waterproof LED lamp according to claim 1, it is characterized in that, described printing opacity body is cylindrical, both sides at printing opacity body medial surface are provided with axial arranged card article, described heat sink is semi-cylindrical shaped, comprise the assembly wall of mounted LED lamp plate and the heat radiation wall of semicircle column type, the heat radiation wall of heat sink and the laminating of the inwall of printing opacity body, be connected with the reinforcement sheet between the assembly wall of heat sink and heat radiation wall.

4. a kind of waterproof LED lamp according to claim 3, it is characterized in that, the lateral wall at described printing opacity body two ends is provided with the screw-shaped groove, the madial wall of described end cap is provided with corresponding screw-shaped raised line, described raised line fits in groove, and there is gap between raised line and groove, be perfused with fluid sealant in gap.

5. a kind of waterproof LED lamp according to claim 4, it is characterized in that, described heat sink two ends are respectively equipped with dog screw in the axial location of corresponding printing opacity body, the bottom surface of end cap is provided with positioning stud, dog screw forms and is threaded with positioning stud, and pitch and the rotation direction of dog screw and raised line are identical.

6. according to claim 1 or 2 or 3 or 4 or 5 described a kind of waterproof LED lamps, it is characterized in that, described air-vent is positioned on the end face of end cap, air-vent is by the counterbore of the rounding taper type of outer end and be arranged on the counterbore bottom surface and form with the elongated hole be communicated with in housing, the inner face of described seal is provided with cavity, between seal and air-vent, by fluid sealant, is fixedly connected with.

7. according to claim 1 or 2 or 3 or 4 or 5 described a kind of waterproof LED lamps, it is characterized in that, the edge of opening of described end cap is provided with sealing ring, sealing ring has an annular slot, the edge of opening of end cap is connected in annular slot, the lateral wall of printing opacity body is provided with a sealing cone at corresponding sealing ring place, the medial surface of sealing ring taper and sealing cone laminating, and the end cap sidewall is being provided with fill orifice near opening part.

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