CN205424829U

CN205424829U - Lens and led lamp

Info

Publication number: CN205424829U
Application number: CN201520816204.2U
Authority: CN
Inventors: 王霖; 邹爱滨
Original assignee: Philips China Investment Co Ltd
Current assignee: Philips China Investment Co Ltd
Priority date: 2015-10-20
Filing date: 2015-10-20
Publication date: 2016-08-03
Anticipated expiration: 2025-10-20

Abstract

The embodiment of the utility model relates to a lens and a LED lamp. Lens (10) for casing (20) of inserting the LED lamp, including central optics portion (11) be formed with on the periphery of optics portion of central authorities a plurality of possess elastic buckle structure (12) integratively, buckle structure includes slice main part (124), in the slice main part, be close to the periphery is equipped with location portion (121), be used for with lens for casing (20) location, in the slice main part, with be equipped with clamping part (122) to location portion interval, be used for with lens fixation arrives on casing (20). The utility model discloses a lens have to collect fixes a position and fixed function in the buckle structure of an organic whole to reduce buckle structure yu the optical surface's of lens interference, improved the optical property of lens.

Description

Lens and LED

Technical field

Embodiment of the present utility model relates to LED field, particularly relates to a kind of lens for LED and has the LED of these lens.

Background technology

Along with the development of LED technology, people are increasingly using LED light device as light source.In the hot spot of LED illumination is applied, in order to obtain smaller light beams angle, the size of collimating lens becomes increasing.But, the size of LED must is fulfilled for being limited by the profile of ANSI (American National Standards Institute (ANSI)) and IES (IES) defined.Therefore, the big lens (i.e. high-power LED lens) location in the lamp housing of limited space and the fixing design problem becoming difficulty.

The Machine Design being typically used for fixing lens at present in LED housing illustrates in fig. 1 and 2, being provided with the locating dowel 110 of three location for ensureing lens on the periphery of the central optic 130 of lens 100, wherein the end of locating dowel 100 is provided with guide post 111 and three for lens are firmly secured to housing 200 buckle structure 120.During installation, locating dowel 110 being inserted and be positioned on this diapire by lens 100 in corresponding hole on the diapire 210 of housing, wherein guide post 111 stretches out from hole, in order to the follow-up assembling on streamline；Buckle structure 120 also stretches out in corresponding hole from diapire 210 simultaneously, and the clamping part being wherein positioned at buckle structure 120 end is stuck on diapire, thus is fixed on diapire by lens 100.As in figure 2 it is shown, lens 100 almost occupy all regions in housing 200, the frame for movement therefore assisted is necessarily designed on the optical surface of lens.But, in such an application, the interference between frame for movement and optical surface is the fewest, and the optical property obtained is the best, therefore causes the most lensed optical property relatively poor.

Utility model content

The defect existed in view of above-mentioned prior art, one of purpose of embodiment of the present utility model is to provide a kind of novel lens so that it is on frame for movement and optical surface between interference reduce, thus improve the optical property of lens.

According to an aspect of the present utility model, providing a kind of lens, it is for inserting the housing of LED, and described lens include central optic, being integrally formed with multiple buckle structure possessing elasticity on the periphery of described central optic, described buckle structure includes flake main body；In described flake main body, it is provided with location division near described periphery, for being positioned relative to described housing by described lens；In described flake main body and compartment of terrain, described location division is provided with clamping part, for described lens are fixed to described housing.

In an embodiment of the present utility model, described buckle structure is additionally included in described flake main body, starts from the position at described clamping part place along the direction deviating from described periphery the guidance part of extension.

In another embodiment of the present utility model, described location division be configured to from the circumferential lateral margin of described flake main body one or two circumferentially protrude.

In another embodiment of the present utility model, described location division be configured to from the radial side of described flake main body one or two is radially projecting.

In another embodiment of the present utility model, during two protrusions being configured to from described radial side when described location division, described location division is configured on the whole in cuboid or the stage portion of cylinder；When the protrusion that described location division is configured to from described radial side, described location division is configured to multiple rib.

In another embodiment of the present utility model, described location division has the smooth locating surface for being positioned by described lens relative to described housing.

In another embodiment of the present utility model, the radial outside that described clamping part is configured to from described flake main body is radially projecting.

In another embodiment of the present utility model, described clamping part has the smooth card buckle side for being fixed on described housing by described lens.

According to another aspect of the present utility model, provide a kind of LED, described LED includes the lens according to an aspect of the present utility model and housing, described housing has the containing cavity for housing described lens, is provided with the hole for coordinating with described buckle structure on the diapire of described containing cavity.

In an embodiment of the present utility model, the described guidance part of described buckle structure stretches out from described hole, is folded with described diapire between described location division and described clamping part.

The advantage of embodiment of the present utility model is, buckle structure is made to be integrated with location, buckle, three kinds of functions of guiding, thus simplify and decrease the Aided Machine structure of lens, then reduce the interference between frame for movement and optical surface, thus improve the optical property of lens and LED.

Accompanying drawing explanation

Will refer only to now accompanying drawing be described embodiment of the present utility model by example, the most similar parts are presented with like reference characters, in accompanying drawing:

Fig. 1 is the schematic diagram of the lens of prior art；

Fig. 2 is the scheme of installations on the housing of LED of the lens shown in Fig. 1；

Fig. 3 is according to the schematic diagram of the lens of first embodiment of the present utility model；

Fig. 4 is according to the schematic diagram of the lens of the second embodiment of the present utility model；

Fig. 5 is according to the schematic diagram of the lens of the 3rd embodiment of the present utility model；

Fig. 6 is according to the schematic diagram of the lens of the 4th embodiment of the present utility model；And

Fig. 7 is the scheme of installations on the housing of LED of the lens shown in Fig. 3.

Detailed description of the invention

Below with reference to exemplary embodiment, principle of the present utility model and spirit are described.Should be appreciated that these embodiments of description are only used to make those skilled in the art better understood when and then realize this utility model, and limit scope of the present utility model the most by any way.

Fig. 3 to Fig. 6 is the schematic diagram of the lens according to first to fourth embodiment of the present utility model, depict a kind of lens 10, it is for inserting the housing 20 (seeing Fig. 7) of LED, these lens 10 include central optic 11, being integrally formed with multiple buckle structure 12 possessing elasticity on the periphery of central optic, this buckle structure includes flake main body 124；In flake main body, it is provided with location division 121 near periphery, for being positioned relative to housing 20 by lens 10；In flake main body and compartment of terrain, location division is provided with clamping part 122, for lens 10 are fixed to housing 20.The embodiment of lens of the present utility model it is specifically described separately below with reference to Fig. 3 to Fig. 6.

As shown in Figure 3, on the periphery of the central optic 11 of lens 10, specifically it is integrally formed with three on periphery top, it is also possible to for any amount of buckle structure 12 more or less than three, this buckle structure has elasticity, can be made up of the such as material such as rubber, silica gel, PMMA.This buckle structure 12 has flake main body 124, near the periphery of central optic 11 in this flake main body, in other words, bottom in flake main body, from the two of this flake main body circumferences (i.e., the circumference of periphery along central optic) lateral margin is provided with location division 121, alternatively referred to as shoulder, for circumferentially lens 10 being positioned at the diapire 21 (seeing Fig. 7) of housing 20, in other embodiments, only location division can also be set for a circumferential lateral margin in flake main body, this location division has smooth locating surface 1211 at its top, for lens are positioned relative to housing, a wherein side contacts of the diapire 21 of locating surface and housing 20；Spaced a distance with location division 121 in this flake main body it is provided with clamping part 122, wherein this distance is generally equivalent to or the thickness of diapire of housing slightly larger than LED, as shown in the figure, clamping part 122 is positioned at the middle part of flake main body, this clamping part is from the radial outside of flake main body 124 radially (i.e., the radial direction of periphery along central optic) protrude, this clamping part is provided with smooth card buckle side 1221 at it towards the side of periphery, for lens are fixed to housing, wherein card buckle side contacts with the opposite side of the diapire of housing.This buckle structure 12 is additionally included in flake main body 124 guidance part 123 starting to extend along the direction deviating from periphery from the position at clamping part 122 place, as shown in the figure, this guidance part is positioned at the top of flake main body, for stretching out from the diapire of housing, the end of this guidance part can be arranged to narrower than the main part of flake main body so that stretching out from the hole of the diapire of housing.

Fig. 4 shows the second embodiment of lens of the present utility model, it is with the difference of the embodiment shown in Fig. 3, the location division 121 of these lens 10 is configured to from the two of flake main body radial side radially (i.e., radial direction peripherally) protrude, the two location division is on the whole in cuboid, alternatively referred to as stage portion, for being radially positioned at the diapire 21 of housing 20 by lens 10.

Fig. 5 shows the 3rd embodiment of lens of the present utility model, it is with the difference of the embodiment shown in Fig. 3, the location division 121 of these lens 10 is configured to from the two of flake main body radial side radially projecting, the two location division is on the whole in cylinder, alternatively referred to as stage portion, for being radially positioned at the diapire 21 of housing 20 by lens 10.

Fig. 6 shows the 4th embodiment of the present utility model, it is with the difference of the embodiment shown in Fig. 3, the location division 121 of these lens 10 is configured to from flake main body radial side, protrude for radial outer side in the drawings, and the form in rib, rib is two in the drawings, and in other embodiments, the quantity of rib can be any quantity；And these lens 10 are not provided with guidance part.

Fig. 3 to Fig. 6 is only the exemplary embodiment of lens of the present utility model, and wherein buckle structure can also use other versions, if will location, it is fixing that (and guiding, function if necessary) integrates.

According to this utility model, additionally provide a kind of LED (not shown), this LED includes lens 10 and housing 20, and this housing 10 has the containing cavity 22 for housing lens 10, is provided with the hole 23 for coordinating with buckle structure 12 on the diapire 21 of this housing.

Referring to Fig. 7, the lens 10 of the present utility model installation process on the housing 20 of LED is described.During installation, lens 10 are positioned in the containing cavity 22 of housing 20, then the buckle structure 12 hole 23 from the diapire 21 of housing 20 is inserted, wherein guidance part 123 stretches out from hole 23, clamping part 122 is also extruded from hole 23 due to the elasticity of buckle structure itself, the card buckle side 1221 of clamping part 122 contacts with the downside of diapire 21, and location division 121 does not passes through hole because of its size more than hole 23, its locating surface 1211 contacts with the upper side of diapire 21, and therefore diapire 21 is folded between location division 121 and clamping part 122；Wherein the effect positioning lens 10 on the housing 20 is played in location division 121, clamping part 122 then plays the effect fixing lens 10 on the housing 20, further, the guidance part 123 stretched out from hole will assist in the raising of packaging efficiency production line, this is because workman can pick up the housing assembled from easily by reaching guidance part.

Give description of the present utility model for the purpose illustrated and describe, but it is not intended to utility model that is exhaustive or that be limited to disclosed form.It may occur to persons skilled in the art that a lot of amendment and variant.

Claims

1. lens (10), it is for inserting the housing (20) of LED, it is characterized in that, described lens (10) include central optic (11), being integrally formed with multiple buckle structure (12) possessing elasticity on the periphery of described central optic, described buckle structure includes flake main body (124)；In described flake main body, it is provided with location division (121) near described periphery, for being positioned relative to described housing (20) by described lens；In described flake main body and compartment of terrain, described location division is provided with clamping part (122), for described lens being fixed to described housing (20).

Lens the most according to claim 1 (10), it is characterized in that, described buckle structure (12) is additionally included in the guidance part (123) that described flake main body (124) is upper, start extension from the position at described clamping part (122) place along the direction deviating from described periphery.

Lens the most according to claim 1 and 2 (10), it is characterised in that described location division (121) be configured to from the circumferential lateral margin of described flake main body (124) one or two circumferentially protrude.

Lens the most according to claim 1 and 2 (10), it is characterised in that described location division (121) be configured to from the radial side of described flake main body (124) one or two is radially projecting.

Lens the most according to claim 4 (10), it is characterized in that, during two protrusions being configured to from described radial side when described location division (121), described location division is configured on the whole in cuboid or the stage portion of cylinder；When the protrusion that described location division is configured to from described radial side, described location division is configured to multiple rib.

Lens the most according to claim 5 (10), it is characterized in that, described location division (121) have the smooth locating surface (1211) for being positioned by described lens (10) relative to described housing (20).

Lens the most according to claim 1 and 2 (10), it is characterised in that the radial outside that described clamping part (122) is configured to from described flake main body (124) is radially projecting.

Lens the most according to claim 7 (10), it is characterized in that, described clamping part (122) has the smooth card buckle side (1221) for being fixed on described housing (20) by described lens (10).

9. a LED, it is characterized in that, described LED includes according to the lens (10) described in any one in claim 1 to 8 and housing (20), described housing has the containing cavity (22) for housing described lens (10), is provided with the hole (23) for coordinating with described buckle structure (12) on the diapire (21) of described housing.

LED the most according to claim 9, it is characterized in that, described buckle structure (12) is additionally included in the guidance part (123) that described flake main body (124) is upper, start extension from the position at described clamping part (122) place along the direction deviating from described periphery, described guidance part (123) stretches out from described hole (23), is folded with described diapire (21) between described location division (121) and described clamping part (122).